JPH0327435Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a heat generating device for an electric mosquito repellent.

(Prior technology) There are two types of electric mosquito repellents: one is a pine fumigation type that heats mosquito repellent pine containing insecticidal ingredients on a heating plate, and the other is a pine fumigation type that heats a mosquito repellent containing insecticidal ingredients on a heating plate. There are two types of chemical liquid evaporation type, both of which use an electrically heated heating device to perform fumigation and transpiration, but the former is used in the pine fumigation type electric mosquito repellent. The heating device has a flat plate configuration in which a heater is in contact with the back of the heat receiving plate on which the mosquito repellent is placed.In the latter case, the heating device of the chemical liquid evaporation type electric mosquito repellent has a suction wick inserted and A wick insertion hole of a size that forms a transpiration gap around the wick is formed through the wick.

(Problem to be solved by the invention) As described above, the heating devices for electric mosquito repellents have different configurations depending on whether they heat and fumigate the mosquito repellent pine or heat and evaporate the chemical solution. It had the disadvantage of being uneconomical because it needed to be manufactured.

In addition, when heating and fumigating a mosquito repellent by placing it on a flat heating device, the center of the heating device is higher than the periphery, so the central portion of the mosquito repellent is intensively fumigated. Average and effective fumigation cannot be expected, and if the chemical liquid sucked up with the wick is evaporated by heating from the surrounding area, the evaporative chemical liquid may condense on the upper surface of the periphery of the wick insertion hole and may not evaporate. As a result, there was a drawback that the loss of evaporative chemical solution was increased.

The present invention can be used as a heat generating device for a fumigation type electric mosquito repellent or as a heat generation device for a transpiration type electric mosquito repellent, and when used as a heating device for a fumigation type electric mosquito repellent, A heat generating device for an electric mosquito repellent that can fumigate mosquito repellents evenly and effectively, and when used as a transpiration-type electric mosquito repellent, can effectively evaporate the sucked up chemical solution without condensation. The aim is to provide equipment at low cost.

(Means for Solving the Problems) In order to achieve the above object, the heating device for an electric mosquito repellent of the present invention has a heat receiving plate formed with a mat mounting plane on which a mosquito repellent mat to be fumigated by electric heating is placed. A heating assembly with a heating element sandwiched between insulating members that can be energized is fixed to the back side of the assembly, and a evaporation gap is formed in the center of each assembly around the wick for sucking up the chemical liquid to be inserted. This structure has a core insertion hole of a size that extends through the core.

(Example) Next, an example of the heating device for an electric mosquito repellent according to the present invention will be described below based on the drawings.

FIG. 1 is an exploded perspective view of a heating device for an electric mosquito repellent according to a preferred embodiment of the present invention, and FIG. 2 is a sectional view of the same in an assembled state.

In the figure, reference numeral 1 denotes a metal heat receiving plate, which forms a mat mounting plane 11 on which a rectangular mosquito repellent mat is placed, which is fumigated by electric heating, and evaporates around the suction wick on the back side of the central part. A holding frame 14 is bent, in which a cylindrical body 17 is provided with a core insertion hole 7 having a diameter D in which a space is formed, and holding claws 13 are suspended from a pair of opposing edges of the mat mounting surface 11. At the same time, a locking leg 16 with a locking claw 15 punched out and standing up on the other pair of opposing edges is formed by bending.

Reference numeral 2 denotes a heat-resistant insulating plate superimposed on the lower surface of the heat receiving plate 1, and a first hole 21 for inserting a cylinder into which the cylinder 17 of the heat receiving plate 1 is inserted is provided in the center. .

Reference numeral 3 denotes a metal upper plate disposed between the insulating plate 2 and the heating element 4 described later, and a first ring body insertion plate into which a ring body 64 of the later described insulation box 6 is inserted. While opening the hole 31, a first hole for energization is provided at the edge.
It has a configuration in which connection terminals 32 are provided vertically.

4 is a heating element made of ceramics having a thickness of 3 to 5 mm, and has a second hole 41 for inserting a ring body having a diameter equal to the first hole 31 for inserting a ring body in the center.
It was created in the form of a ring.

Reference numeral 5 denotes a metal lower contact plate laid on the lower surface of the heating element 4, which is curved in an upwardly convex manner for good contact, and has a second hole 4 in the center for inserting the ring body.
A third hole 51 for inserting an annular body having a diameter equal to the diameter of the third hole 51 is opened, and a second connecting terminal 52 for conducting electricity is perpendicularly connected to the edge.

Reference numeral 6 denotes an insulating box that is brought into contact with the lower surface of the heat receiving plate 1 via the insulating plate 2 and held and fixed by the holding claws 14, and is made of an insulating member such as ceramics.
A heating plate accommodating recess 63 protruding from an annular body 64 which has terminal holes 61 passed through the left and right bottoms and a second cylindrical insertion hole 62 in the center into which the cylindrical body 17 of the heat receiving plate 1 is inserted. is formed.

As shown in the cross-sectional view of FIG. 2, each of the above-described members is assembled by first attaching the lower contact plate 5 so that the ring body 64 protruding from the center of the heating element housing recess 63 of the insulating box 6 serves as a support shaft. The second connection terminal 52 is laid through one terminal hole 61, and then the heating element 4 is stacked on the lower contact plate 5, and then the upper contact plate 3 is placed on the heating element 4.
After stacking the two terminals and passing the first connecting terminal 32 through the other terminal hole 61, the lower contact plate 5, heating element 4, and upper contact plate 3 are housed in the insulating box 6, and the heating element housing recess is accommodated. The opening surface of 63 is closed with an insulating plate 2 to form a heat generating assembly, which is passed through the insulating plate 2 to the cylindrical body 17 on the back side of the heat receiving plate 1 and brought into contact between the holding frames 14, and the holding claws 13 The insulation box 6
It is assembled by folding it towards the bottom of the .

The heat generating device H for an electric mosquito repellent assembled in this manner is used as a heat generating device for a fumigation type electric mosquito repellent or as a heating device for a transpiration type electric mosquito repellent.

In particular, when used in a transpiration-type electric mosquito repellent, for example, as shown in FIG.
The locking claw 15 of the locking leg 16 is attached to the heating element installation opening b of the mosquito trap main body A, which consists of a holding bottom h that holds a chemical solution container f that sucks up the chemical solution e with a suction wick d. It is locked and fixed.

Then, by holding the holding bottom h and storing the drug solution container f in the container storage chamber a, the suction core d
When the tip of the wick is disposed in the wick insertion hole 7 and energized, the medicinal liquid sucked up by the wick d can be heated and evaporated in the wick insertion hole 7, and When the mosquito repellent mat M is placed on the heating device H for an electric mosquito repellent without using the chemical solution container f and the mosquito repellent mat M is energized, the mosquito repellent mat M can be heated and fumigated in the plane around the core insertion hole 7.

In the above embodiment, the heat generating assembly is housed in the heat generating element accommodating recess 63 of the insulating box 6 with the lower contact plate 5, the ring-shaped heat generating element 4, and the upper contact plate 3 stacked together. Although the case of a closed configuration has been described, the insulating box 6 is a plate-shaped insulator, and a heating element that can be energized is placed oppositely between the insulator and the insulating plate 2 with a core insertion space in between. In some cases, this heating assembly is stacked on the back side of the heat receiving plate and fixed by caulking with a cylindrical metal fitting using the core insertion hole. In this case, as a matter of course, it is necessary to prevent the cylindrical metal fitting from protruding from the surface of the heat receiving plate in order to stably place the mat.

(Operation and Effect of the Invention) The heating device for an electric mosquito repellent of the present invention described above has a mat mounting plane on which a mosquito repellent mat to be fumigated by electric heating is placed, and a suction wick in the center of the mat mounting plane. A suction wick is inserted to heat and evaporate the medicinal solution sucked up by the wick, and a hole for wick insertion is formed through the wick, which is large enough to form a transpiration gap around the suction wick. It can now be used as a heating element in a device or as a heating element in a transpiration-type electric mosquito repellent without any problems.

Therefore, it is possible to mass-produce the fumigation type electric mosquito repellent and the transpiration type electric mosquito repellent as common parts without distinguishing them, which is economical and easy to handle.

In addition, the core insertion hole opened in the center of the mat mounting plane acts to prevent the central part of the mat mounting plane from becoming hot, and evenly and effectively fumigates the mosquito repellent mat placed on it. be able to.

Furthermore, when the heating device for an electric mosquito repellent of the present invention is used in a transpiration-type electric mosquito repellent, the medicinal solution sucked up by the suction wick can be heated and evaporated at the wick insertion hole, and Even the chemical solution that is not intended to condense on the heat receiving plate can be effectively evaporated without loss due to the heat of the heat receiving plate, and if you place the mosquito repellent mat on the heating device for the electric mosquito repellent without setting the chemical solution container, you can It will now be possible to use it as a fumigation-type electric mosquito repellent.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of a heat generating device for an electric mosquito repellent according to a preferred embodiment of the present invention, Fig. 2 is a sectional view of the same in an assembled state, and Fig. 3 is a heat generating device for an electric mosquito repellent according to the present invention in a transpiration form. It is a sectional view showing an example of the case where it is incorporated into an electric mosquito repellent. 1...Heat receiving plate, 2...Insulating plate, 3...Upper plate,
4... Heating element, 5... Lower contact plate, 6... Insulating box, 7... Core insertion hole, 11... Mat mounting plane, 13... Holding claw, 14... Holding frame, 15...
Locking claw, 16... Locking leg, 17... Cylindrical body, 21...
...First hole for inserting the cylindrical body, 31...First hole for inserting the ring body
Hole, 32...First connection terminal, 41...Second hole for ring body insertion, 51...Third hole for ring body insertion, 52...Second connection terminal, 61...Hole for terminal, 62... Second hole for inserting the cylindrical body, 63... Heating element housing recess, 64...
Ring body.

Claims (1)

[Scope of utility model registration request] On the back side of the heat-receiving plate that forms the mat-mounting plane on which the mosquito repellent mats to be fumigated by electric heating are placed, a heating assembly with a heating element in a state in which electricity can be passed between insulating members is fixed. A heat generating device for an electric mosquito repellent, characterized in that a core insertion hole of a size that forms a transpiration gap around the inserted chemical solution suction core is provided in the center thereof.