JP7054291B2 - Automatic faucet device - Google Patents

Description

The present invention relates to an automatic faucet device including a removable head portion.

As a conventional automatic faucet provided with a detachable head portion, an automatic faucet as described in Patent Document 1 has been proposed (see Patent Document 1). The automatic faucet described in Patent Document 1 has a detachable head portion having a spout portion having a spout port, a detection sensor unit for detecting an object in a detection region below the spout port, and a detection sensor unit. An automatic faucet provided with a control unit for automatically controlling water discharge and water stoppage based on the detection signal of the above is disclosed. Further, the automatic faucet described in Patent Document 1 is provided with a manual operation unit for continuous water discharge.

In the automatic faucet described in Patent Document 1, when the user holds his / her hand near the spout, the detection sensor unit can detect the faucet and spout water.
On the other hand, when the user pulls out the head portion and continuously discharges water, the manual operation lever provided in the manual operation portion is manually tilted in the vertical direction.

Further, an automatic faucet device including a non-contact type sensor that automatically discharges or stops water and a contact type sensor that continuously discharges water has been proposed (see Patent Document 2). The automatic faucet device described in Patent Document 2 emits infrared light in a predetermined direction, and houses a photoelectric sensor (non-contact type sensor) that detects the presence or absence of a human body by the reflected light in a sensor case. The sensor case contains a capacitance sensor (contact type sensor) that detects the contact of the human body with the entire faucet by changing the capacitance with the ground via the entire faucet. Is installed at the tip of the faucet body.

In the automatic faucet device described in Patent Document 2, in the case of hand washing, the photoelectric sensor indicates that the user simply extends his / her hand in front of the spout of the faucet body. If you want to detect, spout and stop water, and continuously spout water by fetching water or collecting water, touch the capacitance sensor to spout water.

JP-A-2015-105517 Japanese Unexamined Patent Publication No. 2009-299293

However, in the automatic faucet described in Patent Document 1, continuous water discharge is premised on manual operation, which causes a problem that the operation becomes complicated and convenience is impaired.

Further, in the automatic faucet device described in Patent Document 2, since the contact / non-contact sensor is arranged in the sensor case, the wiring is complicated, and in the case of the faucet device in which the head portion is pulled out, the head portion is described as described above. It was difficult to arrange a simple sensor case, and there was a problem that was difficult to realize. In addition, when trying to arrange the sensor case on the receiving part side, the sensor case needs to be arranged near the spout, but if it is arranged in this way, the sensor case extends from the receiving part to the vicinity of the spout. , There is a problem that the storability of the head portion is impaired.

Therefore, a main object of the present invention is an automatic water faucet device provided with a detachable head portion, which can individually correspond to a water discharge and water stop operation and a continuous discharge operation without spoiling the appearance. It is to provide a plug device.

The automatic faucet device according to the present invention is at least one of a receiving portion, a water discharge head portion detachably provided with respect to the receiving portion, a non-contact sensor arranged in the receiving portion, and a water discharge head portion and a receiving portion. On the one hand, the electrostatic detection region, which is arranged to bring a part of the human body into contact and is formed of a conductive material, is electrically connected to the electrostatic detection region, and the change in capacitance in the electrostatic detection region. It is an automatic faucet device including an electrostatic detection unit for detecting static electricity and a control unit for controlling a water discharge state by a signal output from a non-contact sensor or an electrostatic detection unit.
Further, in the automatic faucet device according to the present invention, an electrostatic detection region is arranged in each of the water discharge head portion and the receiving portion, and the electrostatic detection region and the electrostatic detection portion arranged in the receiving portion are electrically connected. It is preferable that the electrostatic detection region arranged in the water discharge head portion and the electrostatic detection region arranged in the receiving portion are electrically connected.
Further, in the automatic faucet device according to the present invention, an electrostatic detection region is arranged in each of the water discharge head portion and the receiving portion, and the electrostatic detection region and the electrostatic detection portion arranged in the receiving portion are electrically connected. Insulation is provided to electrically insulate between the electrostatic detection region arranged in the water discharge head portion and the electrostatic detection region arranged in the receiving portion, and the static electricity is arranged in the water discharge head portion. It is preferable that the electrostatic detection region and the electrostatic detection region arranged in the receiving portion are capacitively coupled.
Furthermore, in the automatic faucet device according to the present invention, at least the outer surface of the water discharge head portion is formed of a conductive material, and the portion of the water discharge head portion formed of the conductive material is arranged in the water discharge head portion. It is preferably an electrostatic detection region.
Further, in the automatic faucet device according to the present invention, at least the outer surface of the receiving portion is formed of a conductive material, and the portion formed of the conductive material in the receiving portion is arranged in the receiving portion for electrostatic detection. It is preferably a region.
Further, in the automatic faucet device according to the present invention, it is preferable that the water discharge head portion has a discharge port and the non-contact sensor is arranged close to the discharge port.
Further, in the automatic faucet device according to the present invention, the operation unit is arranged on the outer peripheral edge of the discharge port, and the non-contact sensor is arranged behind the operation unit and at a predetermined distance from the operation unit. preferable.
Further, in the automatic faucet device according to the present invention, when the control unit controls the non-contact sensor to stop the function of the electrostatic detection unit when the non-contact sensor detects the signal, and when the electrostatic detection unit detects the signal, It is preferable to control the non-contact sensor so as to stop the function.
Further, it is preferable that the automatic faucet device according to the present invention includes a withdrawal determination unit for detecting that the water discharge head portion has been withdrawn from the receiving portion.

According to the automatic faucet device according to the present invention, the non-contact sensor arranged in the receiving portion and at least one of the water discharge head portion and the receiving portion are arranged to bring a part of the human body into contact with each other and are conductive. Since it is provided with an electrostatic detection region formed of the material of the above and an electrostatic detection unit that is electrically connected to the electrostatic detection region and for detecting a change in capacitance in the electrostatic detection region, a water discharge head unit is provided. Each time a part of the human body is touched with the electrostatic detection area arranged in the static electricity detection area or the electrostatic detection area arranged in the receiving part, the water discharge / stop water can be switched (so-called toggle type), so that the water can be easily connected continuously. The water can be discharged and stopped, and the non-contact sensor maintains the water discharge state while detecting an object in the detection area, and stops water when it is no longer detected. , It is possible to make the water spout state without performing the water spouting / stopping operation.
Further, according to the automatic faucet device according to the present invention, an electrostatic detection region is arranged in each of the water discharge head portion and the receiving portion, and the electrostatic detection region and the electrostatic detection portion arranged in the receiving portion are electrically connected. When the electrostatic detection area arranged in the water discharge head portion and the electrostatic detection region arranged in the receiving portion are electrically connected to each other, only the electrostatic detection region arranged in the receiving portion is connected. Even if it is electrically connected to the electrostatic detection unit, water discharge / stoppage may occur regardless of whether the electrostatic detection area is located on the water discharge head or the electrostatic detection area is located on the receiver. Can be operated.
Further, according to the automatic faucet device according to the present invention, an electrostatic detection region is arranged in each of the water discharge head portion and the receiving portion, and the electrostatic detection region and the electrostatic detection portion arranged in the receiving portion are electrically connected. An insulating portion is provided to electrically insulate between the electrostatic detection region arranged in the water discharge head portion and the electrostatic detection region arranged in the receiving portion, and is arranged in the water discharge head portion. When the electrostatic detection area and the electrostatic detection area arranged in the receiving part are capacitively coupled, the static electricity detected by the electrostatic detection part depends on whether or not the discharge head part is pulled out from the receiving part. Since there is a difference in capacitance, it is possible to determine whether or not the discharge head portion is pulled out from the receiving portion without separately providing a means.
Further, according to the automatic faucet device according to the present invention, at least the outer surface of the water discharge head portion is formed of a conductive material, and the portion of the water discharge head portion formed of the conductive material is formed on the head portion. In the arranged electrostatic detection region, since it has the function of an electrode itself, complicated wiring is not required. Similarly, if at least the outer surface of the receiving portion is formed of a conductive material and the portion formed of the conductive material in the receiving portion is an electrostatic detection region arranged in the receiving portion, the electrode itself is an electrode. Since it has the function of, there is no need for complicated wiring.
Further, according to the automatic faucet device according to the present invention, when the water discharge head portion has a discharge port and the non-contact sensor is arranged close to the discharge port, a part of the human body, for example, a part of the human body, for example, is more accurately arranged. It is possible to detect that a hand or the like has been extended to the detection area.
Further, according to the automatic faucet device according to the present invention, the operation unit is arranged on the outer peripheral edge of the discharge port, and the non-contact sensor is arranged behind the operation unit and at a predetermined distance from the operation unit. Therefore, the operation unit can be operated while avoiding interference with the non-contact sensor.
Further, according to the automatic faucet according to the present invention, when the control unit controls the non-contact sensor to stop the function of the electrostatic detection unit when the non-contact sensor detects the signal, and the electrostatic detection unit detects the signal. By controlling the non-contact sensor to stop functioning, it is possible to prevent any of the sensors from detecting at the same time.
Further, according to the automatic faucet device according to the present invention, if a drawer determination unit for detecting that the water discharge head portion is pulled out from the receiving portion is provided, the control condition changes due to the water discharge head portion being pulled out. Can be reliably dealt with.

According to the present invention, even in an automatic faucet device provided with a detachable head portion, there is provided an automatic faucet device capable of individually corresponding to water discharge and water stop operations and continuous discharge operations without spoiling the appearance. can do.

The above-mentioned object, other object, feature and advantage of the present invention will be further clarified from the description of the embodiment for carrying out the following invention with reference to the drawings.

It is an external perspective view which shows an example of the installation state of the automatic faucet apparatus which concerns on this invention. It is a figure which shows an example of the whole structure of the automatic faucet apparatus which concerns on this invention. FIG. 3 is an external perspective view showing a state in which a water discharge head portion is fitted in a receiving portion in the automatic faucet main body of the automatic faucet device according to the first embodiment of the present invention. It is the automatic faucet main body of the automatic faucet apparatus which concerns on the 1st Embodiment of this invention, shows the state which the water discharge head part was fitted in the receiving part, and is the external perspective view from the other direction. FIG. 3 is an external perspective view showing a state in which a receiving portion is pulled out from a water discharge head portion in the automatic faucet main body of the automatic faucet device according to the first embodiment of the present invention. It is the automatic faucet main body of the automatic faucet apparatus which concerns on 1st Embodiment of this invention, shows the state which the receiving part was pulled out from the water discharge head part, and is the external perspective view from the other direction. (A) is a schematic diagram schematically showing an automatic faucet main body according to the first embodiment of the present invention, and (b) is a state in which the water discharge head portion is pulled out from a receiving portion with respect to (a). It is a schematic diagram which shows typically the automatic faucet main body. 1st Embodiment of this Invention It is a block diagram which shows the structure of the said control board. It is a side view of the water discharge head portion and the receiving portion which constitute the automatic faucet main body shown in FIG. 1. It is a front view of the water discharge head portion and the receiving portion which constitute the automatic faucet main body shown in FIG. 1. It is a rear view of the water discharge head portion and the receiving portion which constitute the automatic faucet main body shown in FIG. 1. It is a top view of the water discharge head portion and the receiving portion which constitute the automatic faucet main body shown in FIG. 1. It is a bottom view of the water discharge head portion and the receiving portion which constitute the automatic faucet main body shown in FIG. 1. FIG. 3 is an exploded perspective view of a water discharge head portion constituting the automatic faucet main body shown in FIG. 1. FIG. 3 is an exploded perspective view of the water discharge head portion constituting the automatic faucet main body shown in FIG. 1 as viewed from yet another direction. It is an exploded perspective view of the receiving part constituting the automatic faucet main body shown in FIG. FIG. 3 is an exploded perspective view of the receiving portion constituting the automatic faucet main body shown in FIG. 1 as viewed from yet another direction. (A) is a schematic diagram schematically showing an automatic faucet main body according to a modification of the first embodiment of the present invention, and (b) is a drawing of (a) from a water discharge head portion from a receiving portion. It is a schematic diagram which shows typically the automatic faucet main body in the state of being in a state. FIG. 3 is an external perspective view showing a state in which a water discharge head portion is fitted in a receiving portion in the automatic faucet main body of the automatic faucet device according to the second embodiment of the present invention. It is the automatic faucet main body of the automatic faucet apparatus which concerns on the 2nd Embodiment of this invention, shows the state which the water discharge head part was fitted in the receiving part, and is the external perspective view from the other direction. .. (A) is a schematic diagram schematically showing an automatic faucet main body according to a second embodiment of the present invention, and (b) is a state in which the water discharge head portion is pulled out from a receiving portion with respect to (a). It is a schematic diagram which shows typically the automatic faucet main body. 2nd Embodiment of this Invention It is a block diagram which shows the structure of the said control board. FIG. 3 is an external perspective view showing a state in which a water discharge head portion is fitted in a receiving portion in the automatic faucet main body of the automatic faucet device according to the third embodiment of the present invention. It is the automatic faucet main body of the automatic faucet apparatus which concerns on the 3rd Embodiment of this invention, shows the state which the water discharge head part was fitted in the receiving part, and is the external perspective view from the other direction. .. (A) is a schematic diagram schematically showing an automatic faucet main body according to a third embodiment of the present invention, and (b) is a state in which the water discharge head portion is pulled out from a receiving portion with respect to (a). It is a schematic diagram which shows typically the automatic faucet main body. FIG. 3 is a block diagram showing a configuration of such a control board according to a third embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments shown below are examples that embody the present invention, and do not limit the technical scope of the present invention.

FIG. 1 is an external perspective view showing an example of an installed state of the automatic faucet device according to the present invention. FIG. 2 is a diagram showing an example of the overall configuration of the automatic faucet device according to the present invention. The automatic faucet device 10 according to the present invention is installed in, for example, a bathroom vanity.

In the following, as shown in FIG. 1, the direction in which the discharge port is arranged from the wall W to which the automatic faucet main body 20A of the automatic faucet device 10 is attached is defined as the front direction, and the wall W side is defined as the rear direction. do. Further, the direction in which water is discharged is defined as the downward direction, and the opposite direction is defined as the upward direction. Further, the user defines the right side of the wall W as the right direction and the left side as the left direction.

1. 1. 1st Embodiment (a) Automatic faucet device As shown in FIG. 2, in the automatic faucet device 10 according to the present invention, the temperature of the automatic faucet main body 20A and the water discharged from the automatic faucet main body 20A. It is composed of a temperature adjusting unit 60 for operating the automatic faucet main body 20A, a piping unit 70 constituting a pipe for discharging water from the automatic faucet main body 20A, and a control board 80A for controlling the water discharge state of the automatic faucet main body 20A. To.

Next, the automatic faucet main body 20A constituting the automatic faucet device 10 will be described.
FIG. 3a is an external perspective view showing a state in which the water discharge head portion is fitted in the receiving portion of the automatic faucet main body of the automatic faucet device according to the first embodiment of the present invention. FIG. 3b shows the automatic faucet main body of the automatic faucet device according to the first embodiment of the present invention, in which the water discharge head portion is fitted into the receiving portion, and the external perspective is viewed from another direction. It is a figure. FIG. 4a is an external perspective view showing a state in which the receiving portion is pulled out from the water discharge head portion in the automatic faucet main body of the automatic faucet device according to the first embodiment of the present invention. FIG. 4b shows the automatic faucet main body of the automatic faucet device according to the first embodiment of the present invention, showing a state in which the receiving portion is pulled out from the water discharge head portion, and is a perspective view of the appearance when viewed from another direction. It is a figure. 5 (a) is a schematic view schematically showing an automatic faucet main body according to the first embodiment of the present invention, and FIG. 5 (b) receives a water discharge head portion with respect to FIG. 5 (a). It is a schematic diagram which shows typically the automatic faucet main body in the state of being pulled out from a part. FIG. 6 is a block diagram showing a configuration of such a control board according to the first embodiment of the present invention.
FIG. 7 is a side view of the water discharge head portion and the receiving portion constituting the automatic faucet main body shown in FIG. FIG. 8 is a front view of the water discharge head portion and the receiving portion constituting the automatic faucet main body shown in FIG. FIG. 9 is a rear view of the water discharge head portion and the receiving portion constituting the automatic faucet main body shown in FIG. FIG. 10 is a top view of the water discharge head portion and the receiving portion constituting the automatic faucet main body shown in FIG. FIG. 11 is a bottom view of the water discharge head portion and the receiving portion constituting the automatic faucet main body shown in FIG.
FIG. 12a is an exploded perspective view of a water discharge head portion constituting the automatic faucet main body shown in FIG. 1. FIG. 12b is an exploded perspective view of the water discharge head portion constituting the automatic faucet main body shown in FIG. 1 as viewed from yet another direction. FIG. 13a is an exploded perspective view of a receiving portion constituting the automatic faucet main body shown in FIG. 1. FIG. 13b is an exploded perspective view of the receiving portion constituting the automatic faucet main body shown in FIG. 1 as viewed from yet another direction.

(B) Automatic faucet main body The automatic faucet main body 20A includes a water discharge head portion 30 and a receiving portion 40 for arranging the water discharge head portion 30 in a detachable manner.

(B-1) Water discharge head unit The water discharge head unit 30 faces, for example, a bowl (not shown) at a distance from each other, and has a function of discharging water toward the bowl.
The water discharge head portion 30 is composed of a head outer member 32 and a head base 34.

The head outer member 32 is formed to be thin, for example, made of synthetic resin, and is integrally formed by providing a space inside the head outer member 32 so that the head base 34 can be arranged. Further, the external member 32 for the head is formed in an L-shape when viewed from the side. The external member 32 for the head is plated with a conductive material on the entire outer and inner surfaces thereof, so that the electrostatic detection region 324 is arranged. The electrostatic detection region 324 arranged in the water discharge head portion 30 does not necessarily have to be arranged on the entire surface of the head outer member 32. The electrostatic detection region 324 has a function as an electrode.
The head outer shape member 32 has a water discharge portion 320 arranged on the tip end side thereof (the side opposite to the receiving portion 40) and a grip portion 322 connected to the water discharge portion 320.

The water discharge portion 320 is formed in a substantially cylindrical shape, and on one end side thereof, a water discharge opening 320a is formed in the forward direction and downward. A part of the operating member 320b is inserted into the water discharge opening 320a and is rotatably arranged.

The operation member 320b has a function for switching the watering state of the water discharging head portion 30 between a watering (shower) state and a non-watering state. The operation member 320b is formed in a substantially cylindrical shape with a step by connecting the upper operation cylinder portion 320b1 and the lower operation cylinder portion 320b2 having a diameter larger than that of the upper operation cylinder portion 320b1. The diameter of the upper operation cylinder portion 320b1 is a size that can be fitted into the inner diameter of the water discharge opening 320a. Further, an operation protrusion 320b3 is provided on the outer surface of the lower operation cylinder portion 320b2, and for example, the operation protrusion 320b3 can be used to rotate and easily switch the water discharge state. A spout member 320c is arranged inside the opening portion on the lower side of the lower operation cylinder portion 320b2. Therefore, the lower operation cylinder portion 320b2 of the operation member 320b is arranged on the outer peripheral edge of the discharge port member 320c.

A single substantially cylindrical spout hole 320c1 is formed in the central portion of the spout member 320c, and a plurality of sprinkler plates arranged around the spout hole 320c1 have a diameter smaller than the diameter of the spout hole 320c2. Sprinkler hole 320c2 is formed.

The grip portion 322 is formed in a substantially cylindrical shape, one end side thereof is connected to the water discharge portion 320, the rear surface located on the other end side is open, and the inserted portion 322a into which the head base portion 34 is inserted is inserted. It is formed. Further, a substantially rectangular opening hole 322b is formed in the left-right direction at the substantially center on the lower surface side of the grip portion 322. The opening hole 322b is used when fixing the hose 50 in the hose holding portion 342 described later.

The head base 34 is formed of, for example, a synthetic resin, and has a water passage guide portion 340, a hose holding portion 342 connected to the water passage guide portion 340, and a connection portion 344 connected to the hose holding portion 342. And.
Reinforcing ribs 34a are formed on the upper surface side of the water passage guide portion 340 and the hose holding portion 342 in the head base portion 34. When the head base 34 is arranged inside the head outer member 32, the reinforcing rib 34a comes into contact with the inner surface of the head outer member 32 so that the head base 34 is arranged inside the head outer member 32 without rattling. Provided for.

A water passage (not shown) is formed inside the water passage guide portion 340. An opening 340a is formed on the water discharge portion 342 side (opposite side connected to the hose holding portion 342) of the water passage guide portion 340. Inside the water discharge portion 320, the operation member 320b is arranged so as to be in contact with the opening portion 340a.

The hose holding portion 342 is provided to hold the end portion of the hose 50. Then, the hose 50 held inside the hose holding portion 324 of the head base 34 is pulled out from the hose holding portion 342 toward the receiving portion 40 via the connecting portion 344 located at the rear of the head base 34. .. Since the end portion of the hose 50 is held inside the hose holding portion 342, when the water discharge head portion 30 is pulled out from the receiving portion 40, the hose 50 can also be pulled out following the water discharge head portion 30. Further, a flange 342a is provided on the outer periphery of the hose holding portion 342 so as to be in contact with the inner surface of the head outer shape member 32. A connecting portion 344 for connecting to the receiving portion 40 is continuously provided on the rear end side of the hose holding portion 342.

The connecting portion 344 is provided for connecting to the receiving portion 40. Therefore, inside the connecting portion 344 of the head base 34, a female fitting portion 346 having a circular cross section for connecting to the male fitting portion 444 of the receiving portion 40, which will be described later, is provided. On the upper side of the female fitting surface, which is the inner peripheral surface of the female fitting portion 346, a plurality of (for example, five) recesses 346a are formed along the circumferential direction, for example, at an inscribed angle of 30 degrees. A female serration portion 346b, which is continuously formed by a concave-convex shape, is provided on a part of the lower side.

Further, a first flange 344a is provided on the outer periphery of the connection portion 344 on the front end side so as to be in contact with the inner surface of the head outer shape member 32, and the head outer shape member 32 is provided on the outer periphery of the connection portion 344 on the rear end side. A second flange 344b is provided so as to be in contact with the inner surface of the.

(B-2) Receiving portion The receiving portion 40 is provided for fitting the water discharge head portion 30 into the receiving portion 40, holding the receiving portion 40, and inserting the hose 50.
The receiving portion 40 is composed of a receiving outer member 42, a receiving base 44, and a non-contact sensor holding member 46.

The receiving outer shape member 42 is formed of, for example, a thin wall thickness made of synthetic resin, and is integrally formed by providing a space in which the receiving base portion 44 can be arranged. The outer surface of the receiving outer member 42 is plated with a conductive material on the entire outer and inner surfaces thereof, so that the electrostatic detection region 424 is arranged. The electrostatic detection region 424 arranged in the receiving portion 40 is electrically connected to the electrostatic detection circuit 82, which will be described later, by using an electrostatic detection cable 820. The electrostatic detection region 424 arranged on the receiving outer member 42 does not necessarily have to be arranged on the entire surface of the receiving outer member 42. The electrostatic detection region 424 has a function as an electrode.
The receiving outer shape member 42 has a receiving main body portion 420 and a non-contact sensor accommodating portion 422 projecting from the receiving main body portion 420.

The receiving main body portion 420 is formed in a substantially rectangular parallelepiped shape having an arc shape on the upper side, and is formed by providing a space for arranging most of the receiving base portion 44 inside the receiving base portion 44. On the upper side of the front surface 426, which is one end side of the receiving main body portion 420, a male fitting opening 426a into which a male fitting portion 444 formed in the receiving base portion 44, which will be described later, can be inserted is formed. The rear side, which is the other end side of the receiving main body portion 420, is open, and an inserted portion 428 into which the receiving base portion 44 is inserted is formed.
Further, on the rear side of the lower surface 430 of the receiving main body portion 420, a mounting hole 430a for fixing the non-contact sensor holding member 46 to the receiving base portion 44 is formed. A wiring guide portion 430b is formed at the lower end edge of the inserted portion 428, which is further rearward of the mounting hole 430a.
Further, a non-contact sensor accommodating portion 422 is provided so as to project below the front surface 426 of the receiving main body portion 420.

The non-contact sensor accommodating portion 422 is formed by providing a space for arranging the tip end side of the non-contact sensor holding member 46 that holds the non-contact sensor 464 described later in the non-contact sensor accommodating portion 422. On the discharge head portion 30 side of the non-contact sensor accommodating portion 422, a sensor opening 422a for performing detection by the non-contact sensor 464 is formed at the tip thereof. The sensor opening 422a is arranged close to the discharge port 320 and is opened forward and downward. Further, as shown in FIG. 7, the non-contact sensor accommodating portion 422 is arranged behind the operating member 320 and at a predetermined distance D from the operating member 320. Since the predetermined interval D is provided in this way, when the water discharge state is switched by the operating member 320, the hand (finger) for rotating the operating member 320 or the operating member 320 interferes with the non-contact sensor accommodating portion 422. Can be avoided.

The receiving base 44 is formed of, for example, a synthetic resin in a substantially rectangular parallelepiped shape having an arc shape on the upper side, and the upper substantially central portion on the front surface 440, which is one end side thereof, is directed toward the discharge head portion 30 side. A cylindrical male fitting portion 442 protruding forward is integrally provided. On the upper side of the male fitting surface, which is the outer peripheral surface of the male fitting portion 442, a plurality of (for example, three) convex portions 442a are formed along the circumferential direction, for example, at an inscribed angle of 30 degrees. A male serration portion 442b continuously formed by a concave-convex shape is provided on a part of the lower side.

Further, on the upper side inside the receiving base 44, an insertion hole 446 is formed inside the male fitting portion 442 toward the rear surface 444 which is the other end side of the receiving base 44. A part of the hose 50 is freely pulled out through the insertion hole 446. A semi-cylindrical mounting member insertion groove 448 extending in the front-rear direction is formed on the upper surface side of the receiving base 44. One of the mounting holes 444d, which will be described later, is formed on the rear end side of the mounting member insertion groove 448. Further, on the lower side of the receiving base 44, a holding member space portion 450, which is a substantially rectangular parallelepiped space for storing the non-contact sensor holding member 46, is provided.

The rear surface 444 of the receiving base 44 has an opening 444a formed on the upper side thereof and connected to the insertion hole 446, and a non-contact sensor holding member 46 arranged continuously below the opening 444a. A wiring opening 444b for inserting the non-contact sensor cable 840 from the non-contact sensor 464 is formed. A wiring guide groove 444c is formed further below the wiring opening 444b. Further, a plurality of (for example, three) mounting holes 444d for mounting the receiving portion 40 with screws or the like are formed on the rear surface 444 of the receiving base portion 44.

The holding member space portion 450 formed on the lower side inside the receiving base portion 44 is formed in a substantially rectangular parallelepiped space. The holding member space portion 450 is provided to hold the non-contact sensor holding member 46 inside the holding member space portion 450. The holding member space portion 450 is formed as at least a space for arranging the sensor cable storage portion 462 constituting the non-contact sensor holding member 46 described later.

On the rear side of the lower surface 452 of the receiving base 44, a mounting hole 452a for fixing the non-contact sensor holding member 46 to the receiving base 44 is formed by a mounting member such as a screw.

The non-contact sensor holding member 46 is composed of a non-contact sensor accommodating portion 460 and a sensor cable accommodating portion 462. The non-contact sensor holding member 46 is formed of, for example, translucent acrylic. The non-contact sensor accommodating portion 460 is provided for accommodating the non-contact sensor 464. The non-contact sensor accommodating portion 460 is formed as a substantially rectangular parallelepiped space having an open upper side. Then, in the non-contact sensor accommodating portion 460, on the side of the spout head portion 30 close to the spout port 320, the sensor detection window portion 460a faces forward and downward on a translucent flat surface. It is formed as a shaped window.

As the non-contact sensor 464, for example, an infrared sensor, a photoelectric sensor, a microwave (Doppler) sensor, or the like can be used.

At the boundary between the non-contact sensor storage unit 460 and the sensor cable storage unit 462, a front side wall portion 462a having a gap through which the cable from the non-contact sensor 464 can be inserted is formed, and further, the sensor cable storage unit 462 is formed. An upwardly convex rear side wall portion 462b is formed on the rear end side. Then, on the rear side of the lower surface of the sensor cable accommodating portion 462, a mounting hole 462c for fixing the non-contact sensor holding member 46 is formed in the receiving base portion 44. Therefore, the sensor cable accommodating portion 462 is formed as a substantially rectangular parallelepiped space having an opening on the upper side.
The wiring of the non-contact sensor 464 (cable for non-contact sensor 840) is electrically connected to the non-contact detection circuit 84 described later via the wiring opening 444b formed on the rear side of the receiving base 44. ..

Further, as shown in FIG. 7, the water discharge axial direction A ₁ of the water discharged from the water discharge hole 320c 1 and the detection axial direction A ₂ of the non-contact sensor 464 are substantially parallel to each other. A water discharge portion 320 and a sensor detection window portion 460 a are provided so that the water discharge axial direction A ₁ and the detection axial direction A ₂ are directed forward and downward.

In the automatic faucet main body 20A, the water discharge head portion 30 is held by the receiving portion 40 by fitting the water discharge head portion 30 together with the hose 50 on the receiving portion 40 side.
At this time, the male fitting portion 442 of the receiving portion 40 is fitted into the female fitting portion 346 of the water discharge head portion 30, and the water discharge head portion 30 is received by fitting the male fitting portion 442 and the female fitting portion 346. It is held by the unit 40.
Further, the water discharge head portion 30 is restricted in rotation by meshing between the male serration portion 442b of the male fitting portion 442 and the female serration portion 346b of the female fitting portion 346 while being held by the receiving portion 40.

Further, as shown in the enlarged cross-sectional portion in FIG. 5A, in a state where the water discharge head portion 30 is fitted and held in the receiving portion 40, the rear surface of the water discharge head portion 30 in the head outer shape member 32. Since the electrostatic detection area 324 arranged in the above and the electrostatic detection area 424 arranged on the front surface 426 side of the receiving external member 42 of the receiving portion 40 are arranged so as to face each other, they are arranged so as to be in contact with each other. To. As a result, the electrostatic detection region 324 arranged in the water discharge head portion 30 and the electrostatic detection region 424 arranged in the receiving portion 40 are electrically connected.

(B-3) Hose The hose 50 is formed by, for example, fixing a resin member to the inner surface of a tubular body formed of an insulating mesh-like resin. Therefore, the hose 50 has flexibility. One of the hoses 50 is attached so that water can pass through the water discharge port 320 with respect to the hose holding portion 342 in the head base 34 of the water discharge head portion 30, and the insertion hole of the receiving portion 40 from the hose holding portion 342 of the head base 34. It is inserted into 446 and inserted so that it can be pulled out. The hose 50 corresponds to a part of the water discharge flow path 76 described later.

The automatic faucet main body 20A is provided with a drawer determination unit 52 for confirming whether or not the water discharge head unit 30 has been pulled out from the receiving unit 40. The extraction determination unit 52 includes, for example, a Hall element 520 and a magnet 522.

The Hall element 520 is arranged, for example, on the front surface 440 side of the receiving base 44 of the receiving portion 40. Then, as shown in the enlarged cross-sectional portion in FIG. 5A, in a state where the water discharge head portion 30 is fitted and held in the receiving portion 40, at the rear portion of the head base 34 of the water discharge head portion 30. The magnet 522 is arranged at a position facing the Hall element 520 arranged on the front surface 440 side of the receiving base 44, for example, on the rear surface side of the connecting portion 344 of the head base 34. Therefore, in a state where the water discharge head portion 30 is fitted and held in the receiving portion 40, the Hall element 520 and the magnet 522 are in close proximity to each other. The Hall element 520 is electrically connected to the extraction determination detection circuit 86 via the extraction determination cable 860.

(C) Temperature adjusting unit The temperature adjusting unit 60 is provided to control the temperature of the water discharged from the automatic faucet main body 20A. The temperature adjusting unit 60 includes a main body portion 62 in which the mixing valve 74 described later is arranged, and an operating lever 64 for manually adjusting the mixing ratio of water and hot water by the mixing valve 74. For example, it discharges water adjusted to become hot water as the operating lever 64 is rotated clockwise T ₁ and becomes cold water as it is rotated counterclockwise T ₂ . The temperature can be adjusted as such.

(D) Piping section The piping section 70 constitutes the piping network of the automatic faucet device 10.
The piping unit 70 includes a water supply pipe 72 for supplying cold water and a hot water supply pipe 73 for supplying hot water, and for changing the mixing ratio of the cold water supplied from the water supply pipe 72 and the hot water supplied from the hot water supply pipe 73. The mixing valve 74 of the above is included. The piping portion 70 has a water discharge flow path 76 for supplying water whose temperature has been appropriately adjusted from the mixing valve 74 to the automatic faucet main body 20A. Then, the water discharge flow path 76 is connected to the automatic faucet main body 20A as a hose 50. Further, an electromagnetic valve 78 having a function of opening and closing the water discharge flow path 76 is provided in the middle portion of the water discharge flow path 76.

(E) Control Board Further, the electrical configuration of the automatic faucet main body 20A according to the first embodiment will be described. 5 (a) is a schematic view schematically showing an automatic faucet main body according to the first embodiment of the present invention, and FIG. 5 (b) receives a water discharge head portion with respect to FIG. 5 (a). It is a schematic diagram which shows typically the automatic faucet main body in the state of being pulled out from a part. FIG. 6 is a block diagram showing a configuration of such a control board according to the first embodiment of the present invention.

The control board 80A according to the first embodiment receives the electrostatic detection circuit 82 for detecting the electrostatic capacitance of the electrostatic detection region 324 and the electrostatic detection region 424, and the detection signal S12 from the non-contact sensor. The non-contact detection circuit 84 for receiving the detection signal S14 from the Hall element 520, the extraction determination detection circuit 86 for receiving the detection signal S14, the output signal S20 from the electrostatic detection circuit 82, and the output signal from the non-contact detection circuit 84. A control microcomputer 88 for controlling based on the output signal S24 from S22 and the extraction determination detection circuit 86, and a control signal for controlling the electromagnetic valve 78 based on the control signal S30 connected to the electromagnetic valve 78 and from the control microcomputer 88. It is provided with an electromagnetic valve control circuit 90 for outputting S40.

The electrostatic detection circuit 82, which is an electrostatic detection unit, is caused by a part of the human body touching the electrostatic capacitance of the electrostatic detection area 324 or the electrostatic detection area 424, and the electrostatic detection area 324 or the electrostatic detection area 424. It has a function to detect changes in capacitance. Further, it has a function of outputting an output signal S20 to the control microcomputer 88 according to the magnitude of the detected capacitance.

In the automatic faucet device 10 according to the first embodiment, the electrostatic detection circuit 82 is electrically connected to the electrostatic detection region 424 of the receiving portion 40 via the electrostatic detection cable 820. Then, as described above, in the state where the water discharge head portion 30 is held by the receiving portion 40, the electrostatic detection region 324 arranged in the water discharge head portion 30 and the electrostatic detection region 424 arranged in the receiving portion 40 are Since it is electrically connected, while the water discharge head portion 30 is held by the receiving portion 40, in both the electrostatic detection region 324 of the water discharge head portion 30 and the electrostatic detection region 424 of the receiving portion 40, the human body It is possible to detect changes in capacitance due to partial touch.

The non-contact detection circuit 84 inputs the detection signal S12 output from the non-contact sensor 464 when the non-contact sensor 464 detects an object in the detection region, and outputs the output signal S22 to the control microcomputer 88 accordingly. Has a function.

The extraction determination / extraction detection circuit 86 has a function of inputting a detection signal S14 output as to whether or not the magnet 522 is detected in the Hall element 520, and outputting an output signal S24 to the control microcomputer 88 accordingly.

The control microcomputer 88, which is a control unit, has a function for controlling based on the output signals S20 to S22 output from the electrostatic detection circuit 82, the non-contact detection circuit 84, and the extraction determination detection circuit 86, respectively. Then, in order to control the output signals S20 to S22 based on predetermined control conditions, it has a function of outputting the control signal S30 to the solenoid valve control circuit 90. This predetermined control condition will be described later together with the operation of the automatic faucet device 10.

In the solenoid valve control circuit 90, the control signal S30 output by the control microcomputer 88 is input, and the control signal S40 for controlling the opening and closing of the valve of the solenoid valve 78 is input to the solenoid valve 78 based on the input control signal S30. Has a function to output to.

(F) Operation of the automatic faucet device according to the first embodiment Next, the operation of the automatic faucet device 10 according to the first embodiment will be described.
The automatic faucet device 10 according to the first embodiment can switch between spouting and stopping water by touching a part of the human body to the electrostatic detection regions 324 and 424 (so-called toggle type), and further, it is not. While the contact sensor 464 detects an object (for example, a part of the human body such as a hand) in the detection area, the water discharge state is maintained, and when the water discharge state is stopped, the water can be stopped. Hereinafter, it will be described in detail.

(F-1) When the water discharge head portion is held by the receiving portion First, in the state where the water discharge head portion 30 is fitted and held in the receiving portion 40, the electrostatic detection circuit 82 and the non-contact detection circuit Any of 84 can be detected.
That is, when a part of the human body touches either the electrostatic detection region 324 of the water discharge head portion 30 or the electrostatic detection region 424 of the receiving portion 40, the electrostatic detection circuit 82 is statically charged via the electrostatic detection cable 820. By detecting the change in the capacitance, the electrostatic detection circuit 82 outputs the output signal S20 to the control microcomputer 88. Then, the control microcomputer 88 outputs the control signal S30 to the solenoid valve control circuit 90 based on the output signal S20, and the control signal S30 is input to the solenoid valve control circuit 90. Subsequently, the solenoid valve control circuit 90 outputs a control signal S40 to the solenoid valve 78 so as to open the valve, so that the solenoid valve 78 opens the valve and discharges water through the water discharge flow path 76.

Further, in the water discharge state, when the water discharge head portion 30 is fitted and held in the receiving portion 40, the control microcomputer 88 has the electrostatic detection region 324 of the water discharge head portion 30 or the electrostatic detection region 424 of the receiving portion 40. When a part of the human body touches any of the above, it is controlled so that the water can be stopped.

On the other hand, when the non-contact sensor 464 detects an object in the detection region, the non-contact sensor 464 outputs a detection signal S12 to the non-contact detection circuit 84. When the detection signal S12 is input to the non-contact detection circuit 84 and the detection signal S12 is input to the non-contact detection circuit 84, the non-contact detection circuit 84 subsequently outputs an output signal S22 to the control microcomputer 88. Then, the control microcomputer 88 outputs the control signal S30 to the solenoid valve control circuit 90, and the control signal S30 is input to the solenoid valve control circuit 90. Subsequently, the solenoid valve control circuit 90 outputs a control signal S40 to the solenoid valve 78 so as to open the valve, so that the solenoid valve 78 opens the valve and discharges water through the water discharge flow path 76.

When the non-contact sensor 464 stops detecting an object in the detection region, the control microcomputer 88 outputs a control signal S30 to the solenoid valve control circuit 90, and the solenoid valve control circuit 90 outputs the control signal S30 to the solenoid valve 78. By outputting the control signal S40 so as to close the valve, the solenoid valve 78 closes the valve and stops water.

(F-2) When the water discharge head portion is pulled out from the receiving portion When the water discharge head portion 30 is pulled out from the receiving portion 40, it is arranged in the electrostatic detection region 324 and the receiving portion 40 arranged in the water discharge head portion 30. The electrical connection with the electrostatic detection region 424 is released, and only the electrostatic detection region 424 of the receiving unit 40 is the target of capacitance detection.

The state in which the water discharge head portion 30 is pulled out from the receiving portion 40 is detected by separating the magnet 522 arranged on the water discharge head portion 30 side from the Hall element 520 arranged on the receiving portion 40 side, and the Hall element 520 is detected. , The detection signal S14 is output to the extraction determination detection circuit 86. When the detection signal S14 is input to the extraction determination detection circuit 86, the extraction determination detection circuit 86 subsequently outputs an output signal S24 to the control microcomputer 88. Then, the control microcomputer 88 stops the function of the non-contact sensor 464 and is controlled so that water is not discharged by the non-contact sensor 464.

When water is discharged from the water discharge head portion 30 in a state where the water discharge head portion 30 is pulled out from the receiving portion 40, the water can be stopped by touching the electrostatic detection region 424 of the receiving portion 40 with a part of the human body. ..
That is, when a part of the human body touches the electrostatic detection region 424 of the receiving portion 40, the electrostatic detection circuit 82 detects the change in capacitance via the electrostatic detection cable 820, whereby the electrostatic detection circuit 82 outputs the output signal S20 to the control microcomputer 88. Then, the control microcomputer 88 outputs the control signal S30 to the solenoid valve control circuit 90, and the control signal S30 is input to the solenoid valve control circuit 90. Subsequently, the solenoid valve control circuit 90 outputs a control signal S40 to the solenoid valve 78 so as to close the valve, so that the solenoid valve 78 closes the valve and stops water.

Further, when the water discharge head portion 30 is fitted into the receiving portion 40, the Hall element 520 is close to the magnet 522, and when the detection signal S14 from the Hall element 520 is input, the extraction determination detection circuit 86 is returned. When this is detected, the output signal S24 is output to the control microcomputer 88, and the output signal S24 is input to the control microcomputer 88, the control microcomputer 88 receives the electrostatic detection area 324 of the water discharge head unit 30 or the receiving unit 40. When a part of the human body touches any of the electrostatic detection regions 424, the water is controlled so that the water can be stopped.

(F-3) Control conditions in the control microcomputer Switching between water discharge / water stop using the electrostatic detection circuit 82 is performed within a specified time (within 1 second, etc.) after touching the electrostatic detection areas 324 and 424. It detects that it has been released and performs it.
Therefore, if the electrostatic detection areas 324 and 424 are continuously touched for a specified time or longer, that is, if the electrostatic capacity does not change continuously for a specified time or longer, the water discharge / water stop switching control is not performed. .. That is, for example, when the water discharge head portion 30 is to be pulled out and held continuously, the water discharge / stop water switching control is not performed.

Further, when the electrostatic detection circuit 82 detects that the capacitance has changed and the water is discharged, the control microcomputer 88 is controlled so that the function of the non-contact sensor is stopped. .. That is, while the water is continuously discharged, the water discharge state does not change depending on the state under the water discharge port.
On the other hand, when the detection signal S12 is detected by the non-contact detection circuit 84 and the water is discharged, the control microcomputer 88 is controlled so that the function of the electrostatic detection circuit 82 is stopped.

When the control microcomputer 88 determines that the water is discharged for a specified time (for example, 1 minute), the control signal S30 is output to the solenoid valve control circuit 90, and the solenoid valve control circuit 90 outputs the control signal S30. By outputting the control signal S40 to the solenoid valve 78 so as to close the valve, the solenoid valve 78 closes the valve and stops water.

(G) Action Effect According to the automatic faucet device 10 according to the first embodiment, the human body is located in the electrostatic detection region 324 arranged in the water discharge head portion 30 or the electrostatic detection region 424 arranged in the receiving portion 40. Since it is possible to switch between spouting and stopping water each time a part of the water is touched (so-called toggle type), it is possible to easily continuously spout water and stop water.
Further, according to the automatic faucet device 10 according to the first embodiment, the non-contact sensor 464 maintains a water discharge state while detecting an object in the detection region, and stops water when the detection is stopped. , When washing hands, etc., the water can be spouted without performing the water spouting / stopping operation.

Further, according to the automatic faucet device 10 according to the first embodiment, when the water discharge head portion 30 is fitted and held in the receiving portion 40, the electrostatic detection region 324 arranged in the water discharge head portion 30 is provided. Since the static electricity detection area 424 arranged in the receiving unit 40 is electrically connected to the static electricity detection area 424, even if only the static electricity detection area 424 is electrically connected to the static electricity detection circuit 82. Water discharge / water stop operation can be performed by touching either the electrostatic detection region 324 or the electrostatic detection region 424.

Further, according to the automatic faucet device 10 according to the first embodiment, the outer surface and the inner surface of the head outer member 32 are subjected to the conventional plating treatment, and the outer surface and the inner surface of the receiving outer member 42 are conventionally plated. Since the electrostatic detection region 324 and 424 can be formed by carrying out the treatment, it is not necessary to provide a process for the electrostatic detection region again. As described above, since it is not necessary to individually form the electrostatic detection regions 324 and 424, the degree of freedom in the shape and arrangement of the automatic faucet main body 20A is improved.
Further, with the above configuration, since the automatic faucet body 20A itself has the function of an electrode, complicated wiring is not required.

Further, according to the automatic faucet device 10 according to the first embodiment, the water discharge head unit 30 includes a drawer determination unit 52 for determining that the water discharge head unit 30 has been drawn from the receiving unit 40. It is possible to reliably respond to changes in control conditions due to the withdrawal of.

Furthermore, according to the automatic faucet device 10 according to the first embodiment, the water discharge head portion 30 has a discharge portion 320, and the non-contact sensor 464 is arranged in the vicinity of the discharge portion 320. It is possible to more accurately detect that a part of the human body, for example, a hand or the like, has been extended to the detection area.

Further, according to the automatic faucet device 10 according to the first embodiment, the operation member 320b is arranged on the outer peripheral edge of the discharge portion 320, and the non-contact sensor 464 is located behind the operation member 320b and the operation member 320b. Since the operation member 320b is arranged at a predetermined interval D from the above, the operation member 320b can be operated while avoiding interference with the non-contact sensor 464.

Further, according to the automatic faucet device 10 according to the first embodiment, the control microcomputer 88 controls to stop the function of the electrostatic detection circuit 82 when the non-contact sensor 464 detects a signal. When the electrostatic detection circuit 82 detects a signal, the non-contact sensor 464 is controlled to stop functioning, so that it is possible to prevent any of the sensors from simultaneously detecting the signal.

2. 2. Modification example of the first embodiment Next, the automatic faucet device 10 according to the modification of the first embodiment will be described. 14 (a) is a schematic view schematically showing an automatic faucet main body according to a modification of the first embodiment of the present invention, and FIG. 14 (b) is a water discharge head with respect to FIG. 14 (a). It is a schematic diagram which shows typically the automatic faucet main body in the state which the part is pulled out from the receiving part.

The automatic faucet main body 20A'which constitutes the automatic faucet device 10 according to the modified example of the first embodiment is different from the automatic faucet main body 20A according to the first embodiment in the water discharge head portion 30. Similar to the automatic faucet main body 20A described with reference to FIGS. 3a to 13b, except that the method of electrically connecting the electrostatic detection region 324 of the above and the electrostatic detection region 424 of the receiving portion 40 is different. Has the configuration of. Therefore, the same parts as those of the automatic faucet main body 20A shown in FIGS. 3a to 13b are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 14, the automatic faucet main body 20A'according to the modification of the first embodiment further includes an electrical connection portion 54. The electrical connection portion 54 is composed of, for example, connectors 540 and 542.
The connector 540 is electrically connected to the electrostatic detection region 424 arranged in the receiving portion 40. Further, the connector 542 is electrically connected to the electrostatic detection region 324 arranged in the water discharge head portion 30. When the water discharge head portion 30 is fitted to the receiving portion 40, the connector 540 arranged on the receiving portion 40 side is fitted into the connector 542 arranged on the water discharge head portion 30 side, and as a result, the connector 540 and the connector 540 are fitted. It is electrically connected to the connector 542. Therefore, the electrostatic detection region 324 arranged in the water discharge head portion 30 and the electrostatic detection region 424 arranged in the receiving portion 40 are electrically connected.
Then, while the water discharge head portion 30 is fitted in the receiving portion 40, static electricity detection is performed in both the electrostatic detection region 324 arranged in the water discharge head portion 30 and the electrostatic detection region 424 arranged in the receiving portion 40. It will be possible.
The electrostatic detection circuit 82 is electrically connected only to the electrostatic detection region 424 arranged in the receiving portion 40.

Next, the operation of the automatic faucet device 10 according to the modified example of the first embodiment is the operation of the automatic faucet device 10 according to the modified example of the first embodiment. Since the operation is the same as that of the automatic faucet device 10 according to the embodiment, the description thereof will be omitted.

(B) Action and effect The automatic faucet device 10 has the same effect as that of the automatic faucet device 10 according to the first embodiment, and also has the following effects.
That is, unlike the automatic faucet main body 20A, the automatic faucet main body 20A'has poor contact due to dirt such as water stain on the contact surface, and as a result, even if it is in an insulated state, electricity provided with connectors 540 and 542 is provided. Since it is connected by the connecting portion 54, an electrical connection between the electrostatic detection region 324 of the water discharge head portion 30 and the electrostatic detection region 424 of the receiving portion 40 can be ensured.

3. 3. Second Embodiment Next, the automatic faucet device 10 according to the second embodiment will be described. FIG. 15a is an external perspective view showing a state in which the water discharge head portion is fitted in the receiving portion of the automatic faucet main body of the automatic faucet device according to the second embodiment of the present invention. FIG. 15b shows the automatic faucet main body of the automatic faucet device according to the second embodiment of the present invention, in which the water discharge head portion is fitted into the receiving portion, and the appearance is viewed from another direction. It is a perspective view. 16 (a) is a schematic view schematically showing an automatic faucet main body according to a second embodiment of the present invention, and FIG. 16 (b) receives a water discharge head portion with respect to FIG. 16 (a). It is a schematic diagram which shows typically the automatic faucet main body in the state of being pulled out from a part. FIG. 17 is a block diagram showing a configuration of such a control board according to a second embodiment of the present invention.

The automatic faucet main body 20B constituting the automatic faucet device 10 according to the second embodiment has an insulating portion in the receiving portion 40 as compared with the automatic faucet main body 20A according to the first embodiment. It has the same configuration as the automatic faucet main body 20A described with reference to FIGS. 3a to 13b, except that the 432 is formed and the drawer determination unit 52 is not provided. Therefore, the same parts as those of the automatic faucet main body 20A shown in FIGS. 3a to 13b are designated by the same reference numerals, and the description thereof will be omitted.

(A) Configuration of the automatic faucet device according to the second embodiment As shown in FIGS. 15a, 15b and 16, an insulating portion 432 is formed in the receiving portion 40 of the automatic faucet main body 20B. The insulating portion 432 is formed with a predetermined width from the front surface 440 side of the receiving portion 40 toward the rear surface 444. As for the size of this width, the width at which capacitive coupling can occur is secured by the electrostatic detection region 324 arranged in the water discharge head portion 30 and the electrostatic detection region 424 arranged in the receiving portion 40. That is, the insulating portion 432 is provided so that a capacitive coupling can occur between the electrostatic detection region 324 arranged in the water discharge head portion 30 and the electrostatic detection region 424 arranged in the receiving portion 40.
Therefore, in a state where the water discharge head portion 30 is fitted and held in the receiving portion 40, static electricity is arranged in the water discharge head portion 30 as shown in the enlarged cross-sectional view of the portion a in FIG. 16 (a). The detection region 324 and the electrostatic detection region 424 arranged in the receiving portion 40 are not electrically connected, and the electrostatic detection region 324 and the electrostatic detection region 424 are capacitively coupled by the insulating portion 432. Will be done.

Further, as shown in FIG. 17, unlike the control board 80A, the control board 80B is not provided with the withdrawal determination detection circuit 86.
The electrostatic detection circuit 82 is electrically connected only to the electrostatic detection region 424 arranged in the receiving portion 40.

Further, in the automatic faucet device 20B, since the electrostatic detection region 324 and the electrostatic detection region 424 are capacitively coupled, a part of the human body is in the electrostatic detection region 324 arranged in the water discharge head portion 30. There is a difference in the change in capacitance between the case of touching and the case where a part of the human body touches the electrostatic detection region 424 arranged in the receiving portion 40. Therefore, in the control microcomputer 88, two types of determination reference values, a determination reference value when the water discharge head portion 30 is touched and a determination reference value when the receiver portion 40 is touched, are set.

(B) Operation of the automatic faucet device according to the second embodiment Next, the operation of the automatic faucet device 10 according to the second embodiment will be described.

(B-1) When the water discharge head portion is held by the receiving portion First, in the state where the water discharge head portion 30 is fitted and held in the receiving portion 40, the electrostatic detection circuit 82 and the non-contact detection circuit Any of 84 can be detected.
That is, when a part of the human body touches the electrostatic detection region 324 arranged in the water discharge head portion 30, the determination standard when the electrostatic detection circuit 82 touches the water discharge head portion 30 via the electrostatic detection cable 820. A change in capacitance is detected by the value, and when a part of the human body touches the electrostatic detection area 424 arranged in the receiving portion 40, the electrostatic detection circuit 82 receives the receiving portion 40 via the electrostatic detection cable 820. The electrostatic detection circuit 82 outputs the output signal S20 to the control microcomputer 88 by detecting the change in the capacitance based on the determination reference value when touching.
Then, the control microcomputer 88 outputs the control signal S30 to the solenoid valve control circuit 90 based on the output signal S20, and the control signal S30 is input to the solenoid valve control circuit 90. Subsequently, the solenoid valve control circuit 90 outputs a control signal S40 to the solenoid valve 78 so as to open the valve, so that the solenoid valve 78 opens the valve and discharges water through the water discharge flow path 76.

Further, in the water discharge state, when the water discharge head portion 30 is fitted and held in the receiving portion 40, the control microcomputer 88 has the electrostatic detection region 324 of the water discharge head portion 30 or the electrostatic detection region 424 of the receiving portion 40. When a part of the human body touches any of the above, it is controlled so that the water can be stopped.

On the other hand, when the non-contact sensor 464 detects an object in the detection region, the non-contact sensor 464 outputs a detection signal S12 to the non-contact detection circuit 84. When the detection signal S12 is input to the non-contact detection circuit 84 and the detection signal S12 is input to the non-contact detection circuit 84, the non-contact detection circuit 84 subsequently outputs an output signal S22 to the control microcomputer 88. Then, the control microcomputer 88 outputs the control signal S30 to the solenoid valve control circuit 90, and the control signal S30 is input to the solenoid valve control circuit 90. Subsequently, the solenoid valve control circuit 90 outputs a control signal S40 to the solenoid valve 78 so as to open the valve, so that the solenoid valve 78 opens the valve and discharges water through the water discharge flow path 76.

When the non-contact sensor 464 stops detecting an object in the detection region, the control microcomputer 88 outputs a control signal S30 to the solenoid valve control circuit 90, and the solenoid valve control circuit 90 outputs the control signal S30 to the solenoid valve 78. By outputting the control signal S40 so as to close the valve, the solenoid valve 78 closes the valve and stops water.

(B-2) When the water discharge head portion is pulled out from the receiving portion When the water discharge head portion 30 is pulled out from the receiving portion 40, it is arranged in the electrostatic detection region 324 and the receiving portion 40 arranged in the water discharge head portion 30. Since the capacitance coupling with the electrostatic detection region 424 is released, the capacitance of the electrostatic detection region 424 arranged in the receiving portion 40 detected by the electrostatic detection circuit 82 changes. The electrostatic detection circuit 82 detects this change and outputs the change as an output signal S20 to the control microcomputer 88, so that the control microcomputer 88 determines that the water discharge head portion 30 has been pulled out. That is, in this embodiment, the withdrawal determination unit 52 and the withdrawal determination detection circuit 86 are not required.

When the control microcomputer 80 determines that the water discharge head portion 30 has been pulled out, the control microcomputer 80 stops the function of the non-contact sensor 464 and controls so that water is not discharged by the non-contact sensor.

When water is discharged from the water discharge head portion 30 in a state where the water discharge head portion 30 is pulled out from the receiving portion 40, the water can be stopped by touching the electrostatic detection region 424 of the receiving portion 40 with a part of the human body. ..
That is, when a part of the human body touches the electrostatic detection region 424 of the receiving portion 40, the electrostatic detection circuit 82 detects the change in capacitance via the electrostatic detection cable 820, whereby the electrostatic detection circuit 82 outputs the output signal S20 to the control microcomputer 88. Then, the control microcomputer 88 outputs the control signal S30 to the solenoid valve control circuit 90, and the control signal S30 is input to the solenoid valve control circuit 90. Subsequently, the solenoid valve control circuit 90 outputs a control signal S40 to the solenoid valve 78 so as to close the valve, so that the solenoid valve 78 closes the valve and stops water.

Further, when the water discharge head portion 30 is fitted into the receiving portion 40, the electrostatic detection region 324 arranged in the water discharge head portion 30 and the electrostatic detection region 424 arranged in the receiving portion 40 are capacitively coupled. The capacitance of the electrostatic detection region 424 of the receiving portion 40 detected by the electrostatic detection circuit 82 changes. The electrostatic detection circuit 82 detects this change and outputs the change as an output signal S20 to the control microcomputer 88. In the control microcomputer 88, the water discharge head portion 30 is fitted into the receiving portion 40. Recognize. Then, the control microcomputer 88 controls so that the water can be stopped by touching either the electrostatic detection region 324 of the water discharge head portion 30 or the electrostatic detection region 424 of the receiving portion 40 with a part of the human body. ..

(B-3) Control conditions in the control microcomputer It should be noted that the water discharge / water stop switching using the electrostatic detection circuit 82 is performed within a specified time (within 1 second, etc.) after touching the electrostatic detection regions 324 and 424. It detects that it is separated in the meantime.
Therefore, if the electrostatic detection areas 324 and 424 are continuously touched for a specified time or longer, that is, if the electrostatic capacity does not change continuously for a specified time or longer, the water discharge / water stop switching control is not performed. .. That is, for example, when the water discharge head portion 30 is to be pulled out and held continuously, the water discharge / stop water switching control is not performed.

Further, when the electrostatic detection circuit 82 detects that the capacitance has changed and the water is discharged, the control microcomputer 88 is controlled so that the function of the non-contact sensor is stopped. .. That is, while the water is continuously discharged, the water discharge state does not change depending on the state under the water discharge port.
On the other hand, when the detection signal S12 is detected by the non-contact detection circuit 84 and the water is discharged, the control microcomputer 88 is controlled so that the function of the electrostatic detection circuit 82 is stopped.

When the control microcomputer 88 determines that the water is discharged for a specified time (for example, 1 minute), the control signal S30 is output to the solenoid valve control circuit 90, and the solenoid valve control circuit 90 outputs the control signal S30. By outputting the control signal S40 to the solenoid valve 78 so as to close the valve, the solenoid valve 78 closes the valve and stops water.

(C) Action and effect The automatic faucet device 10 provided with the automatic faucet main body 20B and the control board 80B has the same effect as the automatic faucet device 10 according to the first embodiment, and also has the following effects. Play.
That is, unlike the automatic faucet main body 20A according to the first embodiment, whether or not the discharge head portion 30 is pulled out from the receiving portion 40 is detected by the electrostatic detection circuit 82 due to the difference in capacitance. Since it can be determined, it can be determined whether or not the water discharge head portion 30 is drawn out without providing the drawer determination unit 52 composed of the Hall element 520 and the magnet 522 in the water discharge head unit 30 and the receiving unit 40. It can be carried out. Therefore, it is not necessary to provide the drawer determination unit 52 on the automatic faucet main body 20B, and it is not necessary to provide the drawer determination detection circuit 86 on the control board 80B.
Therefore, the configuration of the automatic faucet main body 20B can be simplified as compared with the above-mentioned automatic faucet main body 20A and the automatic faucet main body 20A', and the control board 80B has a simpler configuration than the control board 80A. Can be done.

4. Third Embodiment Next, the automatic faucet device 10 according to the third embodiment will be described. FIG. 18a is an external perspective view showing a state in which the water discharge head portion is fitted in the receiving portion of the automatic faucet main body of the automatic faucet device according to the third embodiment of the present invention. FIG. 18b shows the automatic faucet main body of the automatic faucet device according to the third embodiment of the present invention, in which the water discharge head portion is fitted into the receiving portion, and the appearance is viewed from another direction. It is a perspective view. 19 (a) is a schematic view schematically showing an automatic faucet main body according to a third embodiment of the present invention, and FIG. 19 (b) receives a water discharge head portion with respect to FIG. 19 (a). It is a schematic diagram which shows typically the automatic faucet main body in the state of being pulled out from a part. FIG. 20 is a block diagram showing a configuration of such a control board according to a third embodiment of the present invention.

The automatic faucet main body 20C constituting the automatic faucet device 10 according to the third embodiment has an insulating portion in the receiving portion 40 as compared with the automatic faucet main body 20A according to the first embodiment. 434 is formed, and further, it is electrically connected to the electrostatic detection region 424 arranged in the receiving portion 40, and is the first for detecting that a part of the human body touches the electrostatic detection region 424. Not only the electrostatic detection circuit 82a, but also the second electrostatic detection circuit 82b for detecting that a part of the human body touches the electrostatic detection region 324 arranged in the water discharge head portion 30 is the electrostatic detection region. It has the same configuration as the automatic faucet body 20A described with reference to FIGS. 3a to 13b, except that it is electrically connected to 324. Therefore, the same parts as those of the automatic faucet main body 20A shown in FIGS. 3a to 13b are designated by the same reference numerals, and the description thereof will be omitted.

(A) Configuration of the automatic faucet device according to the third embodiment As shown in FIGS. 18a, 18b and 20, an insulating portion 434 is formed in the receiving portion 40 of the automatic faucet main body 20C. The insulating portion 434 is formed with a predetermined width from the front surface 440 side of the receiving portion 40 toward the rear surface 444. The size of this width is secured so that the electrostatic detection region 324 arranged in the water discharge head portion 30 and the electrostatic detection region 424 arranged in the receiving portion 40 do not cause capacitive coupling. That is, the insulating portion 434 is provided so that the electrostatic detection region 324 arranged in the water discharge head portion 30 and the electrostatic detection region 424 arranged in the receiving portion 40 do not cause capacitive coupling.
Therefore, in a state where the water discharge head portion 30 is fitted and held in the receiving portion 40, static electricity is arranged in the water discharge head portion 30 as shown in the enlarged cross-sectional view of the portion b in FIG. 19 (a). The detection region 324 and the electrostatic detection region 424 arranged in the receiving portion 40 are not electrically connected, and the electrostatic detection region 324 and the electrostatic detection region 424 are separated by an insulating portion 432. It is not capacitively coupled.

Further, as shown in FIG. 20, unlike the control board 80A, the control board 80C is electrically connected to the static electricity detection region 424 arranged in the receiving portion 40 via the first static electricity detection cable 820a. A second electrostatic detection circuit 82a is electrically connected via a first electrostatic detection circuit 82a, an electrostatic detection region 324 arranged in the water discharge head portion 30, and a second electrostatic detection cable 820b. Circuit 82b is provided.
That is, when the electrostatic detection region 424 of the receiving portion 40 is touched, the first electrostatic detection circuit 82a detects the change in the capacitance, and when the electrostatic detection region 324 of the water discharge head portion 30 is touched. , The second electrostatic detection circuit 82b detects the change in capacitance. Therefore, the control microcomputer 88 is set with two types, a reference determination value when the electrostatic detection region 324 of the water discharge head portion 30 is touched and a reference determination value when the electrostatic detection region 424 of the receiving portion 40 is touched. ..
The second electrostatic detection cable 820b is arranged along the hose 50.

(B) Operation of the automatic faucet device according to the third embodiment Next, the operation of the automatic faucet device 10 according to the third embodiment will be described.

(B-1) When the water discharge head portion is held by the receiving portion First, in a state where the water discharge head portion 30 is fitted and held in the receiving portion 40, the first electrostatic detection circuit 82a and the first electrostatic detection circuit 82a and the first. Both the electrostatic detection circuit 82b and the non-contact detection circuit 84 of No. 2 can be detected.
That is, when a part of the human body touches any of the electrostatic detection regions 424 of the receiving portion 40, the first electrostatic detection circuit 82a changes the capacitance via the first electrostatic detection cable 820a. Upon detection, the first electrostatic detection circuit 82a outputs an output signal S20a to the control microcomputer 88.
Similarly, when a part of the human body touches the electrostatic detection region 324 of the water discharge head portion 30, the second electrostatic detection circuit 82b detects the conversion of the capacitance via the second electrostatic detection cable 820b. Then, the second electrostatic detection circuit 82b outputs the output signal S20b to the control microcomputer 88.
Then, the control microcomputer 88 outputs the control signal S30 to the solenoid valve control circuit 90 based on the output signal S20a or the output signal S20b, and the control signal S30 is input to the solenoid valve control circuit 90. Subsequently, the solenoid valve control circuit 90 outputs a control signal S40 to the solenoid valve 78 so as to open the valve, so that the solenoid valve 78 opens the valve and discharges water through the water discharge flow path 76.

Further, in the water discharge state, when the water discharge head portion 30 is fitted and held in the receiving portion 40, the control microcomputer 88 has the electrostatic detection region 324 of the water discharge head portion 30 or the electrostatic detection region 424 of the receiving portion 40. When a part of the human body touches any of the above, it is controlled so that the water can be stopped.

On the other hand, when the non-contact sensor 464 detects an object in the detection region, the non-contact sensor 464 outputs a detection signal S12 to the non-contact detection circuit 84. When the detection signal S12 is input to the non-contact detection circuit 84 and the detection signal S12 is input to the non-contact detection circuit 84, the non-contact detection circuit 84 subsequently outputs an output signal S22 to the control microcomputer 88. Then, the control microcomputer 88 outputs the control signal S30 to the solenoid valve control circuit 90, and the control signal S30 is input to the solenoid valve control circuit 90. Subsequently, the solenoid valve control circuit 90 outputs a control signal S40 to the solenoid valve 78 so as to open the valve, so that the solenoid valve 78 opens the valve and discharges water through the water discharge flow path 76.

When the non-contact sensor 464 stops detecting an object in the detection region, the control microcomputer 88 outputs a control signal S30 to the solenoid valve control circuit 90, and the solenoid valve control circuit 90 outputs the control signal S30 to the solenoid valve 78. By outputting the control signal S40 so as to close the valve, the solenoid valve 78 closes the valve and stops water.

(B-2) When the water discharge head portion is pulled out from the receiving portion When the water discharge head portion 30 is pulled out from the receiving portion 40, only the electrostatic detection area 424 of the receiving portion 40 is the target of capacitance detection. Become.
The state in which the water discharge head portion 30 is pulled out from the receiving portion 40 is detected by separating the magnet 522 arranged on the water discharge head portion 30 side from the Hall element 520 arranged on the receiving portion 40 side, and the Hall element 520 is detected. , The detection signal S14 is output to the extraction determination detection circuit 86. When the detection signal S14 is input to the extraction determination detection circuit 86, the extraction determination detection circuit 86 subsequently outputs an output signal S24 to the control microcomputer 88. Then, the control microcomputer 88 stops the function of the first electrostatic detection circuit 82a of the water discharge head unit 30, and the water discharge state is based on the change in the capacitance in the electrostatic detection region 324 arranged in the water discharge head unit 30. Is controlled so that it does not change. Further, the control microcomputer 88 stops the function of the non-contact sensor 464 and controls so that water is not discharged by the non-contact sensor 464.

When water is discharged from the water discharge head portion 30 in a state where the water discharge head portion 30 is pulled out from the receiving portion 40, the water can be stopped by touching the electrostatic detection region 424 of the receiving portion 40 with a part of the human body. ..
That is, when a part of the human body touches the electrostatic detection region 424 of the receiving portion 40, the electrostatic detection circuit 82 detects the change in capacitance via the electrostatic detection cable 820, whereby the electrostatic detection circuit 82 outputs the output signal S20 to the control microcomputer 88. Then, the control microcomputer 88 outputs the control signal S30 to the solenoid valve control circuit 90, and the control signal S30 is input to the solenoid valve control circuit 90. Subsequently, the solenoid valve control circuit 90 outputs a control signal S40 to the solenoid valve 78 so as to close the valve, so that the solenoid valve 78 closes the valve and stops water.

Further, when the water discharge head portion 30 is fitted into the receiving portion 40, the Hall element 520 is close to the magnet 522, and when the detection signal S14 from the Hall element 520 is input, the extraction determination detection circuit 86 is returned. When this is detected, the output signal S24 is output to the control microcomputer 88, and the output signal S24 is input to the control microcomputer 88, the control microcomputer 88 receives the electrostatic detection area 324 of the water discharge head unit 30 or the receiving unit 40. By touching any of the electrostatic detection regions 424 with a part of the human body, the water can be stopped.

(B-3) Control conditions in the control microcomputer The water discharge / water stop switching using the first electrostatic detection circuit 82a and the second electrostatic detection circuit 82b is performed after touching the electrostatic detection regions 324 and 424. It is performed by detecting that the circuit is separated within a specified time (within 1 second, etc.).
Therefore, in particular, when the electrostatic detection region 324 arranged in the water discharge head portion 30 is continuously touched for a specified time or longer, that is, when the capacitance does not change continuously for a specified time or longer, the water discharge / Water stop switching control is not performed. That is, when the water discharge head portion 30 is to be pulled out and held continuously, the water discharge / stop water switching control is not performed.

A water discharge state occurs because the first electrostatic detection circuit 82a detects that the capacitance has changed, or the second electrostatic detection circuit 82b detects that the capacitance has changed. If so, the control microcomputer 88 is controlled so that the function of the non-contact sensor 464 is stopped. That is, while the water is continuously discharged, the water discharge state does not change depending on the state under the water discharge port.
On the other hand, when the water discharge state is caused by the detection signal S12 detected by the non-contact detection circuit 84, the control microcomputer 88 uses the first electrostatic detection circuit 82a and the second electrostatic detection circuit 82b. The function is controlled to be stopped.

When the control microcomputer 88 determines that the water is discharged for a specified time (for example, 1 minute), the control signal S30 is output to the solenoid valve control circuit 90, and the solenoid valve control circuit 90 outputs the control signal S30. By outputting the control signal S40 to the solenoid valve 78 so as to close the valve, the solenoid valve 78 closes the valve and stops water.

(C) Action and effect The automatic faucet device 10 provided with the automatic faucet main body 20C and the control board 80C has the same effect as the automatic faucet device 10 according to the first embodiment, and also has the following effects. Play.
That is, unlike the automatic faucet main body 20A according to the first embodiment, the first electrostatic detection circuit 82a for detecting the electrostatic capacity of the electrostatic detection region 324 arranged in the water discharge head portion 30. Since the second electrostatic detection circuit 82b for detecting the electrostatic capacity of the electrostatic detection region 424 of the receiving portion 40 is provided, the electrostatic detection region 324 arranged in the water discharge head portion 30 is touched. Even in this case, even when the electrostatic detection region 424 arranged in the receiving portion 40 is touched, it can be determined that the touching is surely touched.

As described above, the embodiments of the present invention are disclosed in the above description, but the present invention is not limited thereto.
That is, various changes can be made to the above-described embodiments with respect to the mechanism, shape, material, quantity, position, arrangement, etc., without departing from the scope of the technical idea and purpose of the present invention. They are, and they are included in the present invention.

For example, in the automatic faucet device 10 according to the present invention, only the electrostatic detection region 424 arranged in the receiving portion 40 is electrically connected to the electrostatic detection circuit 82 via the electrostatic detection cable 820. However, the present invention is not limited to this, and the electrostatic detection circuit 82 may be electrically connected to only the electrostatic detection region 324 arranged in the discharge head portion 30 via the electrostatic detection cable 820. good.

Further, in the automatic faucet device 10 according to the present invention, the electrostatic detection region 324 arranged in the water discharge head portion 30 and the electrostatic detection region 424 arranged in the receiving portion 40 are plated with a conductive material. It is formed by implementation, but is not limited to this.

Further, in the automatic faucet main bodies 20B and 20C shown in FIGS. 15a, 15b, 18a and 18b, the insulating portions 432 and 434 are formed so that the receiving portion 40 is not provided with the electrostatic detection region 424. However, the present invention is not limited to this, and for example, an insulating portion 432 and 434 may be separately provided as a member on the front surface 440 of the receiving base portion 44. Further, the insulating portions 432 and 434 may be provided as members on the rear end side of the head base portion 34.

Furthermore, in the automatic faucet device 10 according to the present invention, the non-contact sensor 464 is arranged close to the discharge portion 320, but the present invention is not limited to this.

Further, the automatic faucet device 10 according to the present invention is provided with a female fitting portion 346 on the water discharge head portion 30 side and a male fitting portion 442 on the receiving portion 40 side, but the present invention is not limited to this. A male fitting portion 442 may be provided on the water discharge head portion 30 side, and a female fitting portion 346 may be provided on the receiving portion 40 side.

The automatic faucet device according to the present invention can be suitably used, for example, in an automatic faucet device arranged in a washbasin or the like, by distinguishing between continuous water discharge and water discharge only at the time of object detection.

10 Automatic faucet device 20 Automatic faucet body 30 Water discharge head 32 Head external member 320 Water discharge 320a Water discharge opening 320b Operation member 320b1 Upper operation cylinder 320b2 Lower operation cylinder 320b3 Operation protrusion 320c Discharge Water outlet member 320c1 Single spout hole 320c2 Sprinkling hole 322 Grip part 322a Inserted part 322b Opening hole 324 Electrostatic detection area 34 Head base 34a Reinforcing rib 340 Water passage guide part 340a Opening part 342 Hose holding part 344 1 flange 344b 2nd flange 346 female fitting part 346a recess 346b female serration part 40 receiving part 42 receiving external member 420 receiving main body part 420a mounting hole 420b wiring guide hole 422 non-contact sensor accommodating part 422a sensor opening Part 424 Electrostatic detection area 426 Front 426a Male fitting opening 428 Non-insertion 430 Bottom bottom 430a Mounting hole 430b Wiring guide 432 434 Insulation 44 Receiving base 440 Front 442 Male fitting 442a Convex 442b Male serration Part 444 Rear surface 444a Opening 444b Wiring opening 444c Wiring guide groove 444d Mounting hole 446 Insertion hole 448 Mounting member insertion groove 450 Holding member space 452 Bottom surface 452a Mounting hole 46 Non-contact sensor holding member 460 Non-contact sensor Storage unit 460a Sensor detection window unit 462 Sensor cable storage unit 462
462a Front side wall 462b Rear side wall 462c Mounting hole 464 Non-contact sensor 50 Hose 52 Drawout judgment part 520 Hall element 522 Magnet 54 Electrical connection part 540, 542 Connector 60 Temperature control part 62 Main body part 64 Operation lever 70 Piping part 72 Water supply Pipe 73 Hot water supply pipe 74 Mixing valve 76 Water discharge flow path 78 Electromagnetic valve 80 Control board 82 Electrostatic detection circuit 820 Electrostatic detection cable 82a First electrostatic detection circuit 82b Second electrostatic detection circuit 820a First electrostatic Detection cable 820b Second electrostatic detection cable 84 Non-contact detection circuit 840 Non-contact sensor cable 86 Draw-out judgment detection circuit 860 Draw-out judgment cable 88 Control microcomputer 90 Electromagnetic valve control circuit D Interval A ₁ Water discharge axis direction A ₂ Detection axis direction T ₁ , T ₂ Rotation direction of operation lever W wall S12, S14 Detection signal S20, S22, S24 Output signal S30, S40 Control signal

Claims (8)

With the receiving part
A water discharge head portion that is detachably provided with respect to the receiving portion,
The non-contact sensor arranged in the receiving part and
An electrostatic detection region arranged to bring a part of the human body into contact with at least one of the water discharge head portion and the receiving portion and formed of a conductive material.
An electrostatic detection unit that is electrically connected to the electrostatic detection region and for detecting a change in capacitance in the electrostatic detection region.
A control unit that controls the water discharge state by a signal output from the non-contact sensor or the electrostatic detection unit, and a control unit.
Equipped with
The electrostatic detection region is arranged in each of the water discharge head portion and the receiving portion.
The electrostatic detection region arranged in the receiving portion and the electrostatic detection unit are electrically connected and
An automatic faucet device in which the electrostatic detection region arranged in the water discharge head portion and the electrostatic detection region arranged in the receiving portion are electrically connected . The electrostatic detection region is arranged in each of the water discharge head portion and the receiving portion.
The static electricity detection region arranged in the receiving portion and the static electricity detecting portion are electrically connected, and the static electricity detection region arranged in the water discharge head portion and the static electricity detected in the receiving portion are arranged. An insulating portion for electrically insulating the electric detection region is provided between the electrostatic detection region arranged in the water discharge head portion and the electrostatic detection region arranged in the receiving portion. The automatic faucet device according to claim 1, which is capacitively coupled. A claim that at least the outer surface of the water discharge head portion is formed of a conductive material, and the portion formed of the conductive material in the water discharge head portion is the electrostatic detection region arranged in the water discharge head portion. The automatic faucet device according to claim 1 or 2 . Claim 1 to claim 1, wherein at least the outer surface of the receiving portion is formed of a conductive material, and the portion formed of the conductive material in the receiving portion is the electrostatic detection region arranged in the receiving portion. The automatic faucet device according to any one of claims 3 . The water discharge head portion has a discharge port and has a discharge port.
The automatic faucet device according to any one of claims 1 to 4 , wherein the non-contact sensor is arranged close to the discharge port. An operation unit is arranged on the outer peripheral edge of the discharge port.
The automatic faucet device according to claim 5 , wherein the non-contact sensor is arranged behind the operation unit and at a predetermined distance from the operation unit. The control unit
When the non-contact sensor detects a signal, it is controlled to stop the function of the electrostatic detection unit.
The automatic faucet device according to any one of claims 1 to 6 , wherein when the electrostatic detection unit detects a signal, the function of the non-contact sensor is controlled to be stopped. The automatic faucet device according to any one of claims 1 to 7 , further comprising a withdrawal determination unit for detecting that the water discharge head portion has been withdrawn from the receiving portion.

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