JP3041846B2 - Air conditioner switch device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having a hall element for detecting the rotation of an indoor fan provided in an indoor unit main body as a pulse signal, and more particularly, to an output of the hall element. The present invention relates to a switch device for an air conditioner, which enables a switch provided in an indoor unit main body to be deleted by using the switch.

[0002]

2. Description of the Related Art In recent air conditioners, all of the operation control is remotely controlled by a remote control device, and an operation switch for operating these is not provided in the indoor unit body. Is common. However, while the remote control device can be easily carried and convenient, it is often the case that the air conditioner cannot be operated when it is important to leave it somewhere. Therefore, in order to operate the air conditioner for the time being even when the remote control device is eliminated, the conventional air conditioner is provided with an emergency operation switch capable of executing only the automatic operation mode in its indoor unit main body.

[0003] When an air conditioner is installed in each home or the like, a serviceman executes a test operation mode in which the compressor is forcibly operated in order to check whether or not the installed air conditioner operates normally. Let it. Also, in the case where an abnormality occurs in the air conditioner, the serviceman puts the air conditioner into the test operation mode, forcibly operates the compressor, and confirms the abnormality. Therefore, the conventional air conditioner is provided with a test operation switch for causing the indoor unit main body to execute such a test operation mode.

In the air conditioner, the compressor is not operated for about three minutes after the power is turned on. A time-saving switch for forcibly reducing the three-minute waiting time is provided in the indoor unit body. ing. In other words, conventional air conditioners
Although all of the operation control is remotely controlled by a remote control device, the indoor unit itself does not have any other switches except the power switch, and the above-mentioned emergency operation switch, test run switch, time reduction switch, etc. It is still provided today.

[0005]

On the other hand, as described above,
In recent air conditioners, there is a tendency to remove switches from the indoor unit main body. Therefore, it is conceivable that the above-mentioned emergency operation switch, test operation switch, time reduction switch, and the like are also deleted from the indoor unit main body and provided on the remote control device side.
However, except for the emergency operation switch, the test operation switch, the time reduction switch, and the like are not switches directly operated by the user, so that it is not appropriate to provide them in the remote control device. Also, from the viewpoint of the use of the emergency operation switch, it is meaningless to provide it in the remote control device.

The present invention has been made in order to solve such a problem, and an object of the present invention is to output an output from a hall element by manually rotating an indoor fan provided in an indoor unit main body. By using the pulse signal as an operation signal of an emergency operation switch, a test operation switch, a time reduction switch, etc., it is possible to remove switches such as an emergency operation switch, a test operation switch, a time reduction switch, etc. from the indoor unit body. Machine switch device.

[0007]

According to a first aspect of the present invention, a switch device for an air conditioner detects the rotation of an indoor fan provided in an indoor unit main body as a pulse signal. In an air conditioner provided with a hall element, a manual rotation unit for manually rotating the indoor fan is provided in the indoor unit main body, and the indoor unit outputs an output from the hall element when the indoor fan is rotated by the manual rotation unit. The pulse signal is used as an operation signal of the air conditioner. The switch device for an air conditioner according to claim 2 of the present invention is the air conditioner provided with a hall element for detecting rotation of an indoor fan provided in the indoor unit main body as a pulse signal, wherein the indoor unit A manual rotating means provided on the main body for manually rotating the indoor fan, and a waveform pattern of a pulse signal output from the Hall element when the indoor fan is rotated by the manual rotating means is stored as a reference waveform pattern. A pattern comparison unit that compares a waveform pattern of a pulse signal output from the Hall element with the reference waveform pattern, and determines that an operation signal is input when both patterns match, and outputs an operation signal to a control circuit; Means, wherein the control circuit executes a corresponding operation mode according to the input operation signal. That. According to a third aspect of the present invention, there is provided the air conditioner switch device according to the first aspect, wherein the pattern comparing means is configured such that when the operation mode switch such that the indoor fan rotates is turned off, the pattern comparison means is turned off for a predetermined time. During the period, the pulse signal output from the Hall element is canceled.
The switch device for an air conditioner according to claim 4 of the present invention is the air conditioner provided with a hall element for detecting rotation of an indoor fan provided in the indoor unit main body as a pulse signal, wherein the indoor unit A manual rotating means provided on the main body for manually rotating the indoor fan, and a waveform pattern of a pulse signal output from the Hall element when the indoor fan is rotated by the manual rotating means is stored as a reference waveform pattern. The storage circuit compares the waveform pattern of the pulse signal output from the Hall element with the reference waveform pattern after a lapse of a certain period of time from when the power is turned on. When both patterns match, it is determined that an operation signal is input, and the control circuit is determined. And a pattern comparing means for outputting an operation signal to the control circuit, wherein the control circuit responds according to the input operation signal. It is intended to execute an operation mode that. According to a fifth aspect of the present invention, there is provided the air conditioner switch device according to the second, third or fourth aspect, wherein the operation signal output from the pattern comparison means when both patterns match is automatically transmitted. This signal is used as an operation signal of any one of an emergency operation switch that executes only the operation mode, a test operation switch that forcibly operates the compressor, and a time reduction switch that forcibly shortens the start waiting time of the compressor.
According to a sixth aspect of the present invention, there is provided the air conditioner switch device according to the second, third or fourth aspect, wherein the control circuit operates the manual rotating means one or more times during a predetermined time. Thus, based on the number of times the operation signal output from the pattern comparing means is output, an emergency operation switch for executing only the automatic operation mode, a test operation switch for forcibly operating the compressor, and a waiting time for starting the compressor. Is determined, and the operation mode corresponding to the determined switch is executed.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a circuit block diagram showing an embodiment of a switch device for an air conditioner according to the present invention.

The rotation of the indoor fan 2 rotated by the manual rotation means 1 is input to the pattern comparing section 5 as a pulse signal from a Hall element 4 attached to a motor 3 for driving the indoor fan 2 to rotate. . Further, the reference waveform pattern from the storage unit 6 is input to the pattern comparison unit 5. The storage unit 6 stores a waveform pattern of a pulse signal output from the Hall element 4 when the indoor fan 2 is rotated by the manual rotation unit 1 (this will be described later) as a reference waveform pattern.

The pattern comparing section 5 is bidirectionally connected to a control circuit 7 for controlling the operation of the entire air conditioner. Various operations transmitted from the remote controller 9 are provided to the control circuit 7. The configuration is such that the output of the receiving unit 8 that receives the signal is guided. The pattern comparing unit 5 compares the waveform pattern of the pulse signal output from the Hall element 4 with the reference waveform pattern as needed, determines that there is an operation signal input when both patterns match, and sends the operation signal to the control circuit 7. Is a block that outputs.

When an operation signal for stopping the rotation of the indoor fan 2 is input from the control circuit 7, the pattern comparison unit 5 stops the rotation of the indoor fan 2 for a predetermined time after stopping the rotation of the indoor fan 2. This block operates so as to cancel the pulse signal output from the element 4.
This prevents the rotation of the indoor fan 2 due to the inertia caused by the stop of the rotation drive from being erroneously determined to be the rotation by the manual operation of the indoor fan by the manual rotation means 1 (this will be described below). Will be described later).

The control circuit 7 is a block for executing a corresponding operation mode in accordance with an operation signal from the pattern comparing section 5, and has a configuration including software operating on a computer. Although illustration is omitted,
Operation mode data corresponding to an operation signal from the pattern comparison unit 5 is stored in advance in a ROM that is a hardware configuration of the computer.

FIG. 2 is a sectional view showing a specific structure of the manual rotating means 1 in the switch device of the air conditioner having the above-described structure, and FIG. 3 is a front view showing a structure around the indoor fan.
The manual rotating means 1 is integrally attached to one side surface of the indoor fan 2 and has a disk rack 11 having rack teeth 12 formed on the entire outer periphery, and rack teeth 14 meshing with the rack teeth 12 of the disk rack 11. And a straight rack 13.

The upper end of the linear rack 13 is
The first support rod 24 formed on the frame 22 on the front side
The center portion of the linear rack 13 is supported by a frame 22 on the front side of the indoor unit main body 21.
Are supported via a second coil spring 16. The lower end of the linear rack 13 protrudes downward from an elongated hole 23 formed at the bottom of the indoor unit main body 21, and a gripping lever 17 is provided at the protruding tip.

The straight rack 13 includes a first coil spring 15
2, and is urged by the second coil spring 16 toward the frame 22 (the arrow Y direction in FIG. 2). for that reason,
In a normal state, the lever 17 is provided with the first coil spring 15.
Is held at a position in contact with the elongated hole portion 23 by the urging force (contracting force) of the second coil spring 16, and is positioned at the front end side 23a of the elongated hole portion 23 by the urging force (contracting force) of the second coil spring 16 (that is, (The position indicated by the solid line in FIG. 2).
Then, at this position, the engagement between the rack teeth 14 of the straight rack 13 and the rack teeth 12 of the disk rack 11 is released.

On the other hand, the lever 17 is connected to the second coil spring 1
6, the rear end 2 of the elongated hole 23 against the urging force (contraction force)
3B (moving in the direction of the arrow Y 'in FIG. 2), the rack teeth 14 of the linear rack 13 and the rack teeth 12 of the disk rack 11 mesh with each other. In addition, the lever 17 is formed to be wide, and is wider than the width of the elongated hole portion 23 (in FIG. 2, the direction perpendicular to the paper surface). Therefore, the lever 17 comes into contact with the peripheral portion of the elongated hole 23 and is not drawn into the indoor unit main body 21 by the urging force (contraction force) of the first coil spring 15.

In the manual rotating means 1 having such a structure, the lever 17 is grasped and moved in the direction of arrow Y 'to the rear end side 23b of the elongated hole 23, and then downward (arrow X in FIG. 2). ′ Direction (indicated by a broken line in the drawing), the rack teeth 14 of the straight rack 13 and the rack teeth 1 of the disc rack 11
2 mesh with each other, and the indoor fan 2 rotates leftward in the figure.

Thereafter, when the lever 17 is released, the linear rack 13 is pulled upward (in the direction of arrow X) by the first coil spring 15 while being pulled in the direction of arrow Y by the second coil spring 16. At this time, the rack teeth 14 of the straight rack 13 do not mesh with the rack teeth 12 of the disk rack 11 and return to the original position (the position shown by the solid line in FIG. 2) alone. That is,
The indoor fan 2 rotates strongly (fast) at first by the force of pulling down the straight rack 13, and thereafter rotates the straight rack 1.
Since the meshing of No. 3 is released, the rotation is gradually reduced due to the inertia, and finally stops.

On the other hand, the rotation of the indoor fan 2 manually rotated in this manner is output as a pulse signal from a hall element 4 attached to a motor 3 for driving the indoor fan 2 to rotate. FIG. 4 shows a waveform pattern of a pulse signal output from the Hall element 4 at this time.
That is, a pulse having a short width (a continuous pulse having a short interval between "H" and "L") is output at first, and the pulse width gradually increases with time, and finally "H" or "L"
It becomes stable in the state of.

Therefore, the waveform pattern of the pulse signal shown in FIG. 4 is stored in the storage unit 6 as a reference waveform pattern. Although the width of the pulse signal output from the Hall element 4 changes depending on the pulling force of the lever 17, its waveform pattern is constant, and therefore, the present invention uses this waveform pattern as a reference for comparison. That is, the comparison result is not influenced by the force of pulling the lever 17 (that is, the rotation speed or the number of rotations of the indoor fan 2).

That is, when the lever 17 is pulled downward, the waveform pattern of the pulse signal output from the Hall element 4 at this time coincides with the reference waveform pattern stored in the storage unit 6, and this coincidence is determined. The operation of the lever 17 can be detected by confirming. Therefore, by using the operation of the lever 17 as one of the switches of the automatic operation mode, the test operation mode, and the time saving mode, one of the emergency operation switch, the test operation switch, and the time saving switch is deleted from the indoor unit main body 21. Is what you can do.

Next, the switching operation of the switching device of the air conditioner having the above configuration will be described. After the power is turned on, an operation signal in an operation mode in which the indoor fan 2 rotates (for example, cooling operation, heating operation, or the like) is input from the remote control device 9, and when the indoor fan 2 rotates, the rotation is controlled by the motor 3.
Is output to the pattern comparing unit 5 as a pulse signal from the Hall element 4 attached to the PDP. In the pattern comparison unit 5,
The waveform pattern of the pulse signal input from the Hall element 4 is compared with the reference waveform pattern stored in the storage unit 6.

Here, in the case of an operation mode such as a cooling operation,
The indoor fan 2 starts rotating rapidly by the starting current,
After that, it becomes stable at a constant rotation speed. Therefore, in this case, the waveform pattern of the pulse signal output from the Hall element 4 is as shown in FIG. That is,
In this case, the pattern comparing section 5 compares the waveform pattern shown in FIG. 5 with the waveform pattern shown in FIG. 4, so that the two patterns do not match, so that it is not determined that the operation signal is input.

On the other hand, when an operation signal for stopping the operation mode is input from the remote control device 9, the operation signal is input from the control circuit 7 to the pattern comparison unit 5. Upon receiving this operation signal, the pattern comparison unit 5 cancels the pulse signal output from the Hall element 4 for a certain period of time (for example, about 5 seconds to 10 seconds). That is, the comparison between the waveform pattern of the pulse signal input during the period and the reference waveform pattern is not performed. As described above, when the operation signal for stopping the rotation drive of the indoor fan 2 is input from the remote control device 9, the pulse signal output from the Hall element 4 for a certain period thereafter is canceled next. For reasons.

That is, when the rotation of the indoor fan 2 is stopped by stopping the operation mode such as the cooling operation or the like, the indoor fan 2 continues to rotate by inertia for a while and then gradually stops by the frictional force. . That is, the Hall element 4 is driven by the rotation of the indoor fan 2.
The waveform pattern of the pulse signal output from the storage unit 6
Becomes a waveform pattern similar to the reference waveform pattern stored in the. Therefore, the pattern comparison unit 5 compares the approximated waveform patterns to prevent erroneous determination that an operation signal has been input by operating the manual rotation unit 1 in order to prevent the rotation of the indoor fan 2. When an operation signal for stopping the operation is input from the remote control device 9, the pulse signal output from the Hall element 4 is canceled during a certain period thereafter.

On the other hand, the user grasps the lever 17 and moves it in the direction of the arrow Y 'in FIG. 2 to the rear end side 23b of the elongated hole 23, and then moves downward (in the direction of the arrow X' in FIG. 2). When pulled, the rack teeth 14 of the linear rack 13 and the rack teeth 12 of the disk rack 11 mesh with each other, and the indoor fan 2 rotates. At first, the indoor fan 2 rotates strongly (fastly) by the force of pulling down the straight rack 13, and thereafter, the engagement of the straight rack 13 is released. To stop.

That is, at this time, the reference waveform pattern shown in FIG. Therefore, the pattern comparison unit 5
Then, it is determined that the two waveform patterns match (that is, it is determined that an operation signal is input by operating the manual rotating unit 1).
Then, an operation signal is output to the control circuit 7. If the operation signal at this time is, for example, an operation signal indicating the emergency operation mode, the control circuit 7 executes the emergency operation mode according to the operation signal.

In the above description of the switch operation, the operation signal of any one of the emergency operation mode, the test operation mode, and the time saving mode is output to the control circuit 7 by operating the lever 17 once. However, the number of times of operation of the lever 17 is also detected. For example, an emergency operation switch when the lever 17 is pulled once during a predetermined time (for example, 30 seconds, etc.), a test operation switch when the lever 17 is pulled twice, and three times. When it is pulled, a time saving switch may be used. By doing so, it is possible to delete all of the emergency operation switch, the trial operation switch, and the time reduction switch from the indoor unit main body 21. However, when pulling twice or more, it is necessary to pull after the rotation of the indoor fan 2 is completely stopped after the second time.

In this case, the control circuit 7 is provided with a timer for counting a predetermined time and a counter for counting the number of times the lever 17 is operated (the number of times an operation signal is input). It is necessary to previously store operation mode data corresponding to the number of times of input.

Next, another embodiment of the switch device of the air conditioner according to the present invention will be described. In the present embodiment, when a power switch (not shown) provided on the indoor unit main body 21 is turned on, a power-on signal is input from the control circuit 7 to the pattern comparison unit 5. Also,
When receiving the power-on signal, the pattern comparing unit 5
After a certain period of time (for example, after 5 to 10 seconds), the waveform pattern of the pulse signal output from the Hall element 4 is compared with the reference waveform pattern stored in the storage unit 6. That is, the comparison operation is started after a certain period of time, with the power-on signal as the operation start signal. Other configurations are the same as those shown in FIGS.

That is, by comparing only the waveform pattern of the pulse signal output from the Hall element 4 with a reference waveform pattern after a lapse of a predetermined time after the power is turned on, for example, rotation of the indoor fan due to natural wind, This prevents the rotation of the indoor fan 2 due to the inertia caused by stopping the rotation of the fan 2 from being erroneously determined to be the rotation of the indoor fan 2 due to the manual operation of the manual rotation unit 1. The switch operation of the switch device of the present embodiment is the same as that of the switch operation described above except that the waveform pattern of the pulse signal output from the Hall element 4 is compared with the reference waveform pattern after a predetermined time has elapsed after the power is turned on. Therefore, the description of the operation is omitted here. However, in this embodiment, it is necessary for the operator to pull the lever 17 after a certain time has elapsed after the power is turned on.

[0032]

According to a first aspect of the present invention, there is provided an air conditioner including a hall element for detecting a rotation of an indoor fan provided in an indoor unit main body as a pulse signal. Manual rotation means for manually rotating the indoor fan is provided in the indoor unit main body, and a pulse signal output from the Hall element when the indoor fan is rotated by the manual rotation means is used as an operation signal of the air conditioner. . The switch device for an air conditioner according to claim 2 of the present invention is an air conditioner provided with a Hall element that detects the rotation of an indoor fan provided in the indoor unit main body as a pulse signal. A manual rotation means for manually rotating the indoor fan, and a storage means for storing a waveform pattern of a pulse signal output from the Hall element as a reference waveform pattern when the indoor fan is rotated by the manual rotation means. Pattern comparison means for comparing the waveform pattern of the pulse signal output from the Hall element and the reference waveform pattern, and when both patterns match, determines that there is an operation signal input and outputs an operation signal to the control circuit, The control circuit is configured to execute a corresponding operation mode according to the input operation signal. Accordingly, the pulse signal output from the Hall element can be substituted for the operation signal of the switch provided in the indoor unit main body or the switch of the remote control device, so that the switch of the indoor unit main body and the switch of the remote control device can be deleted. . Further, since the output of the conventionally provided Hall element is used, the circuit design and the housing design can be simplified. According to a third aspect of the present invention, in the air conditioner switch device according to the first aspect, when the operation mode switch in which the indoor fan rotates is turned off, the pattern comparing means is provided for a predetermined time after the operation mode switch is turned off. The configuration is such that the pulse signal output from the Hall element is canceled in between. This prevents the rotation of the indoor fan due to the inertia caused by stopping the rotation drive of the indoor fan from being erroneously determined to be the rotation of the indoor fan due to the manual operation of the manual rotation means. The switch device for an air conditioner according to claim 4 of the present invention is an air conditioner provided with a Hall element for detecting rotation of an indoor fan provided in the indoor unit main body as a pulse signal. A manual rotation means for manually rotating the indoor fan, and a storage means for storing a waveform pattern of a pulse signal output from the Hall element as a reference waveform pattern when the indoor fan is rotated by the manual rotation means. ,
After a certain period of time has elapsed since power-on, the waveform pattern of the pulse signal output from the Hall element is compared with the reference waveform pattern. When both patterns match, it is determined that an operation signal has been input and an operation signal is output to the control circuit. Pattern control means, and the control circuit is configured to execute a corresponding operation mode in accordance with the input operation signal. This allows the indoor fan to rotate due to natural wind,
This prevents the rotation of the indoor fan due to the inertia caused by stopping the rotation drive of the indoor fan from being erroneously determined to be the rotation of the indoor fan due to the manual operation of the manual rotation means. Further, the switch device for an air conditioner according to claim 5 of the present invention includes an emergency operation switch and a compressor which execute an operation signal output from the pattern comparison means when both patterns match each other to execute only the automatic operation mode. It is configured to be used as an operation signal of one of a test run switch forcibly operating and a time reduction switch for forcibly shortening the start waiting time of the compressor. Further, in the switch device for an air conditioner according to claim 6 of the present invention, when the manual rotating means is operated one or more times during a predetermined time, the number of times the operation signal output from the pattern comparing means is output. On the basis of,
An emergency operation switch that executes only the automatic operation mode, a test operation switch that forcibly operates the compressor, and a time reduction switch that forcibly shortens the compressor start waiting time. The mode is executed. As a result, any or all of the emergency operation switch, the test operation switch, and the time reduction switch can be deleted from the indoor unit main body.

[Brief description of the drawings]

FIG. 1 is a circuit block diagram showing one embodiment of a switch device of an air conditioner according to the present invention.

FIG. 2 is a cross-sectional view showing a specific configuration of a manual rotation unit in the switch device of the air conditioner according to the present invention.

FIG. 3 is a front view showing a peripheral structure of an indoor fan.

FIG. 4 is a diagram of a substrate waveform pattern stored in a storage unit.

FIG. 5 is a waveform pattern diagram of a pulse signal output from a Hall element with rotation of the indoor fan when an operation mode for rotating the indoor fan is set.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Manual rotation means 2 Indoor fan 4 Hall element 5 Pattern comparison unit 6 Storage unit 7 Control circuit 11 Disk rack 12, 14 Rack teeth 13 Straight rack 15 First coil spring 16 Second coil spring 17 Lever 21 Indoor unit main body

Claims (6)

(57) [Claims] 1. An air conditioner provided with a Hall element for detecting rotation of an indoor fan provided in the indoor unit main body as a pulse signal, wherein a manual rotation means for manually rotating the indoor fan is provided in the indoor unit main body. And a pulse signal output from the Hall element when the indoor fan is rotated by the manual rotating means, as an operation signal of the air conditioner. 2. An air conditioner provided with a Hall element for detecting rotation of an indoor fan provided in an indoor unit main body as a pulse signal, wherein the air conditioner is provided in the indoor unit main body and rotates the indoor fan manually. Manual rotation means; storage means for storing a waveform pattern of a pulse signal output from the Hall element when the indoor fan is rotated by the manual rotation means as a reference waveform pattern; and a pulse signal output from the Hall element. Pattern comparing means for comparing the waveform pattern with the reference waveform pattern, and when the two patterns match, determines that there is an operation signal input and outputs an operation signal to a control circuit. A switch device for an air conditioner, wherein a corresponding operation mode is executed according to the operation signal. 3. The pattern comparing means cancels a pulse signal output from the Hall element for a predetermined time after the operation mode switch is turned off such that the indoor fan rotates. Item 3. A switch device for an air conditioner according to Item 2. 4. An air conditioner provided with a Hall element for detecting rotation of an indoor fan provided in an indoor unit main body as a pulse signal, wherein the air conditioner is provided in the indoor unit main body and rotates the indoor fan manually. Manual rotating means; storing means for storing a waveform pattern of a pulse signal output from the Hall element when the indoor fan is rotated by the manual rotating means as a reference waveform pattern; Pattern comparing means for comparing the waveform pattern of the pulse signal output from the Hall element with the reference waveform pattern, and judging that there is an operation signal input when the two patterns match, and outputting an operation signal to the control circuit; The control circuit executes a corresponding operation mode according to the input operation signal. Switch mechanism of the air conditioner. 5. An operation signal output from the pattern comparing means when both patterns match, an emergency operation switch for executing only the automatic operation mode, a test operation switch for forcibly operating the compressor, and a start of the compressor. The switch device for an air conditioner according to claim 2, wherein the signal is an operation signal of any one of a time reduction switch for forcibly reducing a waiting time. 6. The automatic driving mode based on the number of operation signals output from the pattern comparing means when the manual rotating means is operated one or more times during a predetermined time. An emergency operation switch that only executes the operation, a test operation switch that forcibly operates the compressor, and a time reduction switch that forcibly shortens the start waiting time of the compressor are determined, and the operation mode corresponding to the determined switch is executed. The switch device for an air conditioner according to claim 2, 3 or 4, wherein