JP5227294B2 - Heating sprayer - Google Patents

Description

  The present invention relates to a heating sprayer that heats and sprays liquids such as anthelmintic drugs and fragrances.

  As an example of a heating evaporator that heats and evaporates a liquid such as an anthelmintic drug or a fragrance, a heating evaporator disclosed in Patent Document 1 can be cited. This heating type vaporizer accelerates the rising hot air flow generated by the heat generation of the heating element with a blower, and the rising hot air current flows along the surface of the drug holding body impregnating and holding the drug, whereby the surface of the drug holding body Is used to evaporate the drug.

  Moreover, an ultrasonic atomizer, an electrostatic atomizer, etc. are known as an example according to a heating type evaporator (for example, refer patent document 2, 3).

JP 2006-006184 A JP 05-031421 A JP 2005-296653 A

Ultrasonic atomizers and electrostatic atomizers disperse liquids by pulverizing them with ultrasonic waves or high voltage, so the particle size is larger than when vaporizing liquids by heating. Can not. In addition, the ultrasonic atomizer and the electrostatic atomizer require a certain scale for the ultrasonic generation mechanism and the high voltage application mechanism, and it is difficult to reduce the size of the entire atomizer.
Moreover, since the heating type evaporator as disclosed in the above-mentioned Patent Document 1 is a heating method, the liquid can be sufficiently atomized, but the atomized medicine is evaporated by the rising hot air flow, and thus the atomization. Does not have the function of spraying the medicine.

  Then, an object of this invention is to provide the heating type sprayer which can atomize a liquid and can spray this.

  In order to solve the above problems, the heating sprayer of the present invention has the following configuration. That is, a first container that houses a holding body that is impregnated with liquid, a heating element that generates heat when energized, a heating element support that supports the heating element, an air pump, a heating element support, and an air pump are accommodated. The heating element support is configured in a cylindrical shape, the heating element is disposed at one end of the heating element support, and the first container is detachable and in a mounted state. It is attached to one end of the heating element support so that the holding body does not come into contact with the heating element, and the gas sent out by the air pump is sent from the other end of the heating element support to the internal space of the heating element support, Further, the gas fed from one end of the heating element support is configured to blow off the liquid vapor obtained by the heat generation of the heating element.

  From the viewpoint of miniaturization, the air pump is preferably a diaphragm pump.

  Further, the heating element support section may include a liquid transporter that transports the liquid by capillary action around the heating element so as not to touch the heating element. Thereby, vaporization of the liquid proceeds efficiently.

  According to the present invention, since the vapor of the liquid obtained by the heat generated by the heating element is blown out by the gas sent out by the air pump, the vapor can be sprayed to the outside of the heating sprayer.

(A) The front view of the heating type sprayer which concerns on embodiment. (B) A1-A1 sectional view of this heating type sprayer. (A) The rear view of the heating type sprayer corresponding to FIG. (B) Right side view. (C) Bottom view. (D) Top view. The disassembled perspective view of the heating type sprayer corresponding to FIG. The disassembled perspective view of a heat generating body support part. (A) The top view of a heat generating body support part. (B) Assembly perspective view. (C) Side view. (D) E1-E1 sectional drawing of this heat generating body support part. The perspective view of the heat generating body support part in the state which removed the liquid transporter. (A) The front view of the state which attached the 1st container to the heat generating body support part. (B) B1-B1 sectional drawing. (C) Top view. (D) Bottom view. (A) The front view of a 1st container. (B) C1-C1 sectional drawing of this 1st container. (C) Bottom view. (D) D1-D1 sectional drawing of this 1st container.

  Embodiments of the present invention will be described with reference to the drawings. Corresponding portions in the drawings are denoted by the same reference numerals, and redundant description is omitted.

  A heated sprayer 100 as an example of an embodiment of the present invention is shown in FIGS. The heating sprayer 100 includes a first container 40 that houses a holding body 41 that is impregnated with a liquid, a heating element 36 that generates heat when energized, a heating element support 30 that supports the heating element 36, and the air pump 20. And the 2nd accommodating body 10 which accommodates the heat generating body support part 30 and the air pump 20 at least is included.

  The second container 10 of this embodiment includes an exterior part 101 having a funnel shape having one large and a small opening, and a lid part 102 having a disk shape. In the exterior part 101, a cylindrical body 101a is formed from a small opening of the exterior part 101 toward the internal space. The lid portion 102 is attached to the exterior portion 101 so as to close a large opening of the exterior portion 101. In this embodiment, it is assumed that the heating sprayer 100 is used with the lid 102 as a bottom surface.

  Two through holes are provided in the side wall of the exterior part 101, and a plug for supplying DC power obtained by converting AC power of a commercial power source by an AC-DC adapter (not shown) into one of the through holes. A plug receiver 105 is received, and a rocker switch 106 is inserted into the other through hole. Instead of using a commercial power source as a power source, a primary battery or a secondary battery may be used as a power source. In this case, neither the plug receiver 105 nor a through hole therefor is required. Further, the switch is not limited to the rocker switch 106, and other switches (such as a tactile switch, a push button switch, and a toggle switch) may be used instead.

  A power supply circuit board 109 and an oscillation circuit board 108 on which a boost regulator and the like are mounted are fixedly housed in the internal space of the exterior part 101 whose large opening is blocked by the lid part 102. The power supply circuit board 109 is connected to the heating element 36 and the oscillation circuit board 108 by lead wires 60. The power supply circuit board 109 supplies power to the heating element 36 and the oscillation circuit when the rocker switch 106 is turned on. It is supplied to the substrate 108.

In the internal space of the exterior part 101 whose large opening is closed by the lid part 102, the air pump 20 is fixedly placed almost at the center of the lid part 102, that is, below the small opening part of the exterior part 101. . The air pump 20 is preferably a diaphragm pump from the viewpoint of downsizing the heating sprayer 100. The diaphragm pump has a configuration in which the air in the pump chamber sucked from the intake port is sent out from the discharge port 21 due to a pressure change in the pump chamber caused by vibration of the diaphragm, or a venturi pipe portion connected to the pump chamber. In this case, there is a configuration in which the air sucked from the flow path connected to the venturi pipe portion is continuously sent out from the discharge port 21 by using the venturi effect generated by the pressure change. Reference Patent Documents 1 and 2 are examples of the latter diaphragm pump. As a mechanism for applying vibration to the diaphragm, there are known a mechanism based on electromagnetic force by AC power, a mechanism based on reciprocating motion of a crank driven by a motor, a mechanism based on vibration of a piezoelectric element, and the like. From the viewpoint of reducing the size of the heating sprayer 100, a mechanism that applies vibration to the diaphragm is preferable as a mechanism for applying vibration to the diaphragm. A voltage is supplied from the oscillation circuit board 108 to the piezoelectric element attached to the diaphragm.
(Reference Patent Document 1) JP 2009-097393 A (Reference Patent Document 2) JP 2009-097414 A

  In this embodiment, the discharge port 21 of the air pump 20 is fitted into one end of a silicon tube 22, and one end of a resin pipe 23 is fitted into the other end of the silicon tube 22.

  Next, the heating element support 30 includes, for example, a heating element 36 that is a coiled electric heater, a first cylindrical body 31, a second cylindrical body 34, a heating element fixture 35 that fixes the heating element 36, It includes a liquid transport device 38 and is configured in a cylindrical shape (see FIGS. 4 to 6).

  The first cylindrical body 31 has a thick cylindrical shape having a through hole (hereinafter referred to as a central through hole) 31d in the center. Specifically, in the first cylindrical body 31, two cylindrical portions 31a and 31b having the same inner diameter but different outer diameters are combined so that their central axes (the direction in which both through holes extend) coincide with each other. Shape. For convenience of explanation, it has been described that the first cylindrical body 31 is composed of two parts, a cylindrical portion 31a having a small outer diameter and a cylindrical portion 31b having a large outer diameter. One cylindrical body 31 is one component obtained by molding a heat-resistant resin by molding or the like. The thick cylindrical wall portion of the cylindrical portion 31b has two through holes 31c parallel to the central through hole 31d. The two through holes 31c are through holes through which the lead wires 60 are passed.

  The second cylindrical body 34 has a cylindrical shape made of, for example, metal, and has an outer diameter smaller than the outer diameter of the cylindrical portion 31b. Further, the inner diameter of the second cylindrical body 34 is set such that the second cylindrical body 34 is attached to the first cylindrical body 31 so that their central axes (the direction in which both through holes extend) coincide with each other. In addition, the length can include two through holes 31c provided in the cylindrical portion 31b. In addition, the 2nd cylindrical body 34 is attached to the 1st cylindrical body 31 by insert molding or an adhesive agent, for example.

  The heating element fixture 35 is formed of ceramics, for example, and has a substantially rectangular parallelepiped shape. A through-hole 35d is provided from one longitudinal end surface of the heating element fixture 35 toward the end surface facing this. In addition, the one planar wall portion in the direction orthogonal to the longitudinal direction and the other planar wall portion opposed thereto have two through holes 35a and 35b arranged along the longitudinal direction. The through hole 35 a is for holding the heating element 36, and the through hole 35 b is for passing the lead wire 60. Both ends of the heating element 36 are fitted into the two through holes 35 a, whereby the heating element 36 is firmly fixed to the heating element fixture 35. The lead wire 60 from the heating element 36 passes through the through hole 35d of the heating element fixture 35, passes through the through hole 35b, and is guided to the outside of the heating element fixture 35. The outer width of the two planar wall portions having the through holes 35a and 35b is shorter than the distance between the openings of the two through holes 31c provided in the cylindrical portion 31b. Further, the outer surface of both wall portions, which are one wall portion in the direction orthogonal to the longitudinal direction and the other wall portion opposite to the wall portion and in which the through holes 35a and 35b are not provided, are the inner surfaces of the second cylindrical body 34. Curved to fit the wall surface.

  The heating element fixture 35 to which the heating element 36 is attached is housed in the internal space of the second cylindrical body 34 so as not to block the two through holes 31c provided in the cylindrical portion 31b. That is, since the heating element fixture 35 has the above-described shape, two spaces are formed between the two planar wall portions having the through holes 35a and 35b and the inner wall surface of the second cylindrical body 34. Positioning is made so that the two through holes 31 c provided in the cylindrical portion 31 b communicate with each other in the space, the heating element fixture 35 is accommodated in the internal space of the second cylindrical body 34. In this state, the central through hole 31d of the first cylindrical body 31 and the through hole 35d of the second cylindrical body 34 communicate with each other. As a method of fixing the heating element fixture 35 in the internal space of the second cylindrical body 34, a bonding method using an adhesive is conceivable. However, it is not necessary to fix the heating element 35. For example, the lead wire 60 is processed for an extra length. By designing the outer width of both wall portions of the heating element fixture 35 that is formed into a curved surface to match the inner diameter of the second cylindrical body 34, the heating element fixture 35 can be removed, It is possible to prevent the heating element fixture 35 from rotating in the internal space of the second cylindrical body 34.

  The liquid transport device 38 is formed by bending and bending a sheet in which metal fibers are knitted in a mesh shape, for example. Therefore, the liquid transport device 38 has a function of transporting the liquid by capillary action and thermal conductivity. . The liquid transport device 38 is fixed to the end of the heating element fixture 35 (the end close to the heating element 36) so as to be sandwiched between both ends thereof. In this state, both end portions of the liquid transport device 38 are formed in two spaces formed between both the flat wall portions of the heating element fixture 35 having the through holes 35a and 35b and the inner wall surface of the second cylindrical body 34. Since it has entered, the liquid transporter 38 is attached to the heating element fixture 35 so that the liquid transporter 38 does not cover the through hole 35b of the heating element fixture 35 (see FIG. 5). Further, the central portion of the liquid transport device 38, that is, the portion facing the heat generating body 36 in a state where the liquid transport device 38 is attached to the heat generating body fixing device 35 is outside the end portion of the second cylindrical body 34. Protruding. Further, in this state, the liquid transporter 38 is disposed around the heating element 36 so as not to touch the heating element 36 (more specifically, the lead wire 60) (see FIG. 5).

  Such a heating element support portion 30 is accommodated and fixed in the cylindrical body 101a of the exterior portion 101. In this state, the other end of the resin pipe 23 is inserted into the central through hole 31d of the first cylindrical body 31. (See FIG. 1). Moreover, since the outer diameter of the cylindrical part 31b of the first cylindrical body 31 is substantially equal to the inner diameter of the cylindrical body 101a of the exterior part 101, the heating element support part 30 does not play inside the cylindrical body 101a. In this state, the internal space of the silicon tube 22 communicates with the central through hole 31 d of the first cylindrical body 31 through the internal space of the resin pipe 23.

  The first container 40 includes a cylindrical body 45 having a cylindrical shape with a bottom and a cylindrical member 42 (see FIGS. 7 and 8). A through hole 45 c is provided at the center of the bottom 45 p of the cylindrical body 45. A cylindrical member 42 having an outer diameter smaller than the inner diameter of the cylindrical body 45 is inserted into and stored in the internal space of the cylindrical body 45. The cylindrical member 42 has a substantially cylindrical shape in which a partition plate 42a is provided in the internal space at a position near one end thereof. The partition plate 42a has a through hole 42b at the center thereof. The cylindrical member 42 has a convex portion 42d protruding outward on the side wall portion thereof, and a part of the inner wall of the cylindrical body 45 is narrowed, so that the cylindrical member 42 and the cylindrical body 45 are in pressure contact with each other. The member 42 is fixed in the internal space of the cylindrical body 45. In the state where the cylindrical member 42 is fixed in the internal space of the cylindrical body 45, the opening end of the cylindrical body 45 and the end of the cylindrical member 42 (the end on the side away from the bottom 45p of the cylindrical body 45) and Suppose that a sufficient distance is maintained. The internal space of the cylindrical body 45 existing between the opening end portion of the cylindrical body 45 and the end portion of the cylindrical member 42 is referred to as an internal space X.

  The internal space of the cylindrical member 42 is divided into two large and small spaces by a partition plate 42a, and the larger internal space C accommodates a holding body 41 that is impregnated and held with liquid. Examples of the liquid include volatile liquids such as anthelmintic drugs, fragrances, and distilled water. Examples of the holding body 41 include a sponge and a water absorbing sheet.

  A through hole (which may be a slit or the like) 42c is provided on the side wall of the cylindrical member 42 surrounding the smaller internal space of the cylindrical member 42. For this reason, in a state where the cylindrical member 42 is fixed in the internal space of the cylindrical body 45, the internal space X penetrates the space 45 d formed between the inner wall surface of the cylindrical body 45 and the outer wall surface of the cylindrical member 42. It communicates with the outer space of the heating sprayer 100 through the hole 42c, a space 45e formed between the bottom 45p of the cylindrical body 45 and the partition plate 42a of the cylindrical member 42, and a through hole 45c in the bottom 45p. The larger internal space C of the cylindrical member 42 communicates with the outer space of the heating sprayer 100 through the through hole 42b, the space 45e, and the through hole 45c of the partition plate 42a.

  Such a first container 40 is detachably attached to the heating element support 30 so as to accommodate the second cylindrical body 34 of the heating element support 30 in the internal space X (see FIG. 7). . In this state, the liquid transport device 38 of the heating element support 30 is in contact with the holding body 41, but the heating element 36 is not in contact with the holding body 41 by the liquid transport device 38. Moreover, since the 1st container 40 is attached to the heat generating body support part 30 so that attachment or detachment is possible, replacement | exchange of the 1st container 40 is easy.

  Next, the operation of the heating sprayer 100 will be described. When the rocker switch 106 is turned on, power from a power source (commercial power, battery, etc.) is supplied to the power supply circuit board 109, and the oscillation circuit board 108 and the heating element 36 are energized from the power supply circuit board 109. The oscillation circuit board 108 controls a piezoelectric element attached to the diaphragm of the air pump 20, and gas (air) is sent out from the discharge port 21 of the air pump 20 when the diaphragm vibrates. The heating element 36 generates heat when energized.

  Using the heating element 36 as a heat source, the liquid transport device 38 having a larger area than the heating element 36 is heated by heat radiation. By the way, since the liquid transport device 38 is in contact with the holding body 41, the liquid impregnated in the holding body 41 moves along the liquid transport device 38 by capillary action. The liquid moved along the liquid transport device 38 is efficiently heated by heat conduction from the liquid transport device 38 or heat radiation from the heating element 36, and the liquid is vaporized. Although this vapor | steam is based on the kind of liquid etc., it is a mist shape with a particle diameter of about 3-5 micrometers, and it fills the through-hole 35d of the heat generating body fixing tool 35. FIG.

  By the way, the gas sent out from the discharge port 21 of the air pump 20 passes through the internal space of the silicon tube 22, the internal space of the resin pipe 23, the central through hole 31 d of the first cylindrical body 31, and the heating element fixture 35. The holes 35d pass through in this order, and the steam filling the through holes 35d of the heating element fixture 35 is blown off. The blown off steam passes through the space 45d, the through hole 42c, the space 45e, and the through hole 45c of the bottom 45p in this order as a first flow path, and is jetted to the outer space of the heating sprayer 100. It becomes. The blown off steam passes through the through hole 42b of the partition wall plate 42a, the space 45e, and the through hole 45c of the bottom 45p in this order as a second flow path, and is sprayed into the outer space of the heating sprayer 100. Will be issued. However, the second flow path is formed in the larger inner space of the cylindrical member 42 as in the case where the sheet-like holding body 41 such as a water absorbing sheet or a chemical liquid impregnated sheet is folded in a spiral shape. This is established when a flow path through which gas can pass through is secured in the internal space in a state in which the second flow path is not established depending on the type or shape of the holding body 41. There is also. Even in such a case, the steam is ejected into the outer space of the heating sprayer 100 by the first flow path.

  Further, instead of continuously discharging the gas from the air pump 20, the gas may be intermittently discharged under the control of the oscillation circuit substrate 108. Thereby, the temperature fall of the heat generating body 36 can be reduced.

  In addition to the above-described embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

Claims (3)

A first container that houses a holding body that is impregnated and held with liquid;
A heating element that generates heat when energized;
A heating element support for supporting the heating element;
An air pump,
Including the second heating element housing the heating element support and the air pump,
The heating element support is configured in a cylindrical shape,
The heating element is disposed at one end of the heating element support,
The heating element support portion includes a liquid transporter that transports the liquid by capillary action around the heating element so as not to touch the heating element.
The first container is detachably attached to the one end of the heating element support so that the holding body does not come into contact with the heating element when mounted.
The gas sent out by the air pump is sent from the other end of the heating element support to the internal space of the heating element support, and the gas sent from the one end of the heating element support is A heating type sprayer configured to blow off the liquid vapor obtained by the heat generation of the heating element. The heated sprayer according to claim 1, wherein
The heating atomizer, wherein the air pump is a diaphragm pump. A first container that houses a holding body that is impregnated and held with liquid;
A heating element that generates heat when energized;
A heating element support for supporting the heating element;
An air pump,
Including the second heating element housing the heating element support and the air pump,
The heating element support is configured in a cylindrical shape,
The heating element is disposed in an internal space at one end of the heating element support,
The first container is detachably attached to the one end of the heating element support so that the holding body does not come into contact with the heating element when mounted.
The gas sent out by the air pump is sent from the other end of the heating element support to the internal space of the heating element support, and the gas sent from the one end of the heating element support is A heating type sprayer configured to blow off the liquid vapor obtained by the heat generation of the heating element.

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