JPH0445716Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention uses a heating element to heat an emitter containing an ingredient effective for deodorizing or killing insects, and releases the active ingredient from the emitter into the air. The present invention relates to a structure of a heating element of a heat dissipation device that allows heat dissipation.

(Prior Art) Regarding this type of heating dissipation device, the applicant has previously proposed the one shown in FIG.
(See No. 136316).

In the figure, reference numeral 21 denotes a device main body having an opening/closing door 22 on the front surface, and an air intake port 21a is provided at the lower front of the main body 21, and an air blowing port 21b is provided at the upper front surface of the main body 21. The air inlet 21a and the air outlet 21b are connected by a U-shaped air duct 24 with a blower 23 interposed therebetween, and the lower wall of the air duct 24 near the air outlet 21b is provided with a dispersing agent. An introduction port 24a for introducing air into the ventilation duct 21 is formed.

Reference numeral 25 denotes a dispersion agent container which is disposed in and out of the front recess 21c of the device main body 21, and the dispersion agent container 25 contains a liquid dispersion agent containing ingredients effective for deodorizing or killing insects. The container body 25a is housed in a container body 25a and has an open top, and a cylindrical suction core 25b is inserted into the container body 25a through the opening and exposes the top.

26 is a heating element disposed above the recess 21c, and as shown in FIG. 2b, the heating element 26
consists of a metal heating holder 26a having a U-groove-shaped recess _26a1 on the front surface that holds the exposed portion of the suction wick 25b, and an electric heater 26b attached to the back surface of the heating holder 26a.

That is, in the heat dissipation device described above, the blower 23 is operated to send out the air sucked in from the intake port 21a through the ventilation duct 24 from the ventilation port 21b, and the electric heater 26b is made to generate heat to blow the exposed portion of the suction wick 25b. By heating with the heating holder 26a, the active ingredient is released from the release agent sucked up into the exposed portion, and the released air is introduced into the ventilation duct 24 through the introduction port 24a, mixed with circulating air, and sent to the air. It is sent out from the port 21b.

(Problem to be Solved by the Invention) By the way, in the case where the heat of the electric heater 26b is conducted to the suction core 25b via the heating holder 26a like the heating element 26 described above, the electric heater 26
It is necessary to transmit the heat b quickly and efficiently and to suppress heat radiation from the heating holder 26a to reduce heat loss.

However, the heating holder 26a only has a holding recess _26a1 formed on the front surface of the square main body, so even if the heating holder 26a is made of a material with excellent thermal conductivity, the volume of the holder itself is large. Therefore, there is a problem that it takes time from the time when the electric heater 26b starts to be energized until the suction wick 25b is heated and starts to emit light. Furthermore, there is a problem in that the efficiency of heat conduction is extremely low because heat loss due to heat radiation from the surface of the heating holder 26a other than the surface on which the electric heater 26b is attached is large. If a heat insulating material is attached to the surface of the heating holder 26a to prevent this heat loss, component costs and manufacturing costs will inevitably increase.

This invention was made in view of the above problems,
By devising the shape of the heating holder without requiring the addition of special parts, heat can be quickly transferred to the radiator held in the recess, and heat loss during heat conduction can be reduced. It is an object of the present invention to provide a heating element structure of a heat dissipation device that can achieve the following objectives.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides an emitting body that emits an effective component for deodorizing etc. by heating, and a dispersing body that can be heated to a temperature at which the effective ingredient is emitted. a heating element that generates heat when energized; and a heating holder that is attached to the heating element and has a concave portion for holding the radiant on a surface facing the attachment point. The heating element structure of the dispersion device is characterized in that the thickness of the heating holder is gradually decreased from the recess toward the outside.

(Function) According to the present invention, the volume and surface area of the heating holder can be reduced by gradually decreasing the thickness of the heating holder from the concave portion for holding the heating element outward. After the heating element is energized, heat is quickly transferred to the dissipating body, and heat radiation from the surface of the heating holder is suppressed.

(Embodiment) Figures 1a to 1d show an embodiment of the present invention, in which Figure 1a is an internal front view of the heat dissipation device, and Figure 1b is the - line in Figure 1a. Enlarged cross-sectional view,
FIG. 1c is an exploded perspective view of the heating element mounting portion, and FIG. 1d is a top view of the heating holder.

In the figure, reference numeral 1 indicates a rectangular device main body, and a horizontally long rectangular air intake port 1 is provided at the lower front of the device main body 1.
a, and a rectangular air outlet 1b at the top of the front.
are formed respectively. Further, a rectangular air filter 2 is detachably attached to the open end of the intake port 1a.

Reference numeral 3 denotes a horizontally elongated blower equipped with a fan 3a and a motor (not shown), and the blower 3 is disposed at the lower part of the main body 1, and its suction port 3b is connected to the suction port 1a.

4 is an L-shaped air duct that connects the air outlet 1b and the air outlet 3c of the blower 3, and a rectangular inlet 4a is provided in the lower wall of the upper horizontal part of the air duct 4; A U-shaped guide plate 4b that surrounds the upper side wall of the recess 1c, which will be described later, is vertically provided on the lower side and rear side of the opening 4a.

Reference numeral 1c denotes a convex-shaped recess for storing a container formed at the center of the front surface of the apparatus main body 1, and the recess 1c has an open upper wall portion facing the introduction port 4a, and an upper portion of the back wall. It is opened as a space for arranging a heating element 6, which will be described later. When the duct 4 is installed, the guide plate 4b surrounds the outside of the opening in the upper part of the back wall, and the inlet 4a faces the opening in the upper wall.

Reference numeral 5 denotes a wicking agent container which is placed in and out of the recess 1c, and the wicking agent container 5 contains a liquid wicking agent that evaporates when heated, and has a container main body 5a having an opening at the top; A cylindrical suction wick 5b is inserted into the container body 5a through the opening to expose the upper part, and a wick holding hole formed in the center of the container body 5b is screwed onto the outer surface of the opening of the container body 5b. It consists of a wick holder 5c that closely holds the outer peripheral surface of the wick 5b.

Reference numeral 6 denotes a heating element disposed above the recess 1c, and the heating element 6, as shown in FIG. A heating holder 6c fixed with a
It is composed of two temperature adjusting sheets 6d interposed between the heating element 6a and the heating holder 6c. This heating element 6 is constructed by fixing only the heating holder 6c to the recess 1c by fixing the mounting member 7 interposed between the heating element 6a and the head of the screw 6b to the upper back surface of the recess 1c with a screw 7a. Located within.

The heating element 6a is made of a PTC element that can rapidly increase its own electrical resistance when the temperature exceeds a predetermined temperature when energized, and can keep the heating temperature constant.

The heating holder 6c is made of a metal such as aluminum that has excellent thermal conductivity, and is provided with a vertically long recess _6c1 in the center of its front surface to hold the exposed portion of the suction core 5b. Further, the heating holder 6c is formed so that the thickness of the left and right portions of the recess _6c1 gradually decreases toward the outside, that is, inclined surfaces are formed symmetrically on the left and right sides of the recess _6c1 .
The recess 6 _c1 has a substantially semicircular cross section, and has vertical locking protrusions 6 _c2 facing each other at an interval smaller than the diameter of the suction wick 5b on the inner side of its opening edge. It has a parallel surface _6c3 facing the opening edge.

The temperature adjustment sheet 6d is made of a silicone rubber sheet that has heat resistance, insulation properties, and excellent thermal conductivity, and has a wall thickness of approximately 0.45 mm in the illustrated example.
A 0.3 mm temperature adjustment sheet 6d is attached to the heating element 6a.
and the heating holder 6c, the heating element 6a is interposed between the heating element 6a and the heating holder 6c.
The amount of heat conducted to c is shown adjusted by the sheet thickness. In addition, in the fixed state, the temperature adjusting sheet 6d, except for the upper end of the front temperature adjusting sheet 6d, has its both side ends and lower end pulled out through the opening to the back side of the recess 1c, and its upper end is the back side of the guide plate 4b. is being drawn out.

A timer dial 8 is arranged on the right side of the recess 1c on the front side of the device main body 1, and is used to adjust the operating time of the heating element 6a and the motor of the blower 3;
Reference numeral 9 indicates a dispersion amount adjustment dial disposed at the same position and lower side, and is used to adjust the energization time to the heating element 6a, 10 indicates a power switch disposed at the lower front end of the apparatus main body 1, and 11 indicates the air outlet 1b. This is the power lamp located in the

Reference numeral 12 denotes an opening/closing door that is pivotally supported on the left front edge of the apparatus main body 1 and covers the front surface of the apparatus main body 1 except for the air outlet 1b, the power switch 10, and the power lamp 1. The opening/closing door 12 has the recess. 1c, a viewing window 12a for checking the dispersing agent is installed in the intake port 1a.
Intake windows 12b are formed corresponding to the respective intake windows 12b.
Further, an adsorption magnet 12c is provided on the back side of the opening/closing door 12 to maintain the door closed state.

Next, the operation of the heat dissipation device described above will be explained.

First, after adjusting the timer dial 8 and the divergence amount adjustment dial 9, the power is turned on. By turning on the power, the blower 3 starts operating, and the air sucked in from the air intake port 1a through the air filter 2 is sent out from the air intake port 1b via the air duct 4. At the same time, the heating element 6a is energized, and the heat emitted from the heating element 6a is conducted to the heating holder 6c via the temperature adjustment sheet 6d, and the heating holder 6c exposes the suction core 5b. The part is heated. Due to this heating, the wicking agent sucked into the exposed part of the wick 5b evaporates, and the vapor is sucked into the air duct 4 through the inlet 4a and mixed with the air flowing inside the air duct 4. The air is sent out from the air outlet 1b.

As described above, according to the embodiment, by gradually decreasing the wall thickness of the left and right portions of the recess 6 _c1 of the heating holder 6 c toward the outside, the volume of the holder itself, that is, the heat capacity, is reduced compared to the conventional one. As a result, the heat of the heating element 6a is quickly transferred to the suction wick 5b after being energized, thereby shortening the time from when the heating element 6a is energized until the suction wick 5b is heated and starts dissipating, that is, the rise time of dissipation. be able to. In addition to the above-mentioned volume, the heating holder 6c
By reducing the surface area excluding the surface on which the heating element 6a is attached, it is possible to suppress heat radiation from the surface as much as possible and reduce heat loss due to heat radiation. Furthermore, since inclined surfaces are formed on the left and right sides of the recess 6 _c1 , the heat transmitted from the heating element 6a to the heating holder 6c is guided by the inclined surfaces in the direction of the recess 6 _c1 , and the suction wick 5b is Can be heated effectively.

FIG. 3 is a top view showing another embodiment of the heating holder, which differs from the above embodiment in that the thickness of the left and right portions of the recess 36 _c1 of the heating holder 36c is gradually made smaller toward the outside _. It differs in that arcuate surfaces are formed symmetrically on the left and right sides.

Even when this heating holder 36c is used, the same effects as in the embodiment described above can be achieved.

In addition, in the above embodiment, the wick 5b that sucked up the liquid wicking agent was heated by the heating holders 6c and 36c, but the wick 5b which sucked up the liquid wicking agent was heated by the heating holders 6c and 36c. If so, various types of emitters can be used, including semi-solid and solid emitters.

(Effect of the invention) As explained above, according to the invention, the volume of the holder itself, that is, the heat capacity, can be reduced by gradually decreasing the wall thickness of the heating holder from the concave portion for holding the emitter outward. As a result, the heat of the heating element can be quickly transferred to the divergent body after energization, and the rise time of divergence can be shortened. In addition, the surface area of the heating holder is reduced along with the volume,
This makes it possible to suppress heat radiation from the surface as much as possible and reduce heat loss due to heat radiation during heat conduction.

Therefore, by devising the shape of the heating holder without requiring the addition of special parts, heat can be quickly and efficiently transferred to the radiating body held in the recess, and heat loss can be reduced. It is possible to provide a heating element structure that is extremely useful for a heat dissipation device.

[Brief explanation of the drawing]

1a to 1d show an embodiment of the present invention, in which FIG. 1a is an internal front view of the heat dissipation device, FIG. 1b is an enlarged cross-sectional view taken along the line - in FIG.
Figure 1c is an exploded perspective view of the heating element mounting part, Figure 1d is a top view of the heating holder, Figures 2a and b are conventional examples, and Figure 2a is a longitudinal cross-section of the heat dissipation device. FIG. 2b is a top view of the heating holder, and FIG. 3 is a top view showing another embodiment of the heating holder. 5b... Suction wick, 6... Heat generating element, 6a... Heat generating element, 6c... Heating holder, 6 _c1 ... Recessed portion.

Claims (1)

[Claims for Utility Model Registration] A radiating body that emits an ingredient effective for deodorizing etc. by heating, and a heating element that can heat the radiating body to a temperature at which the effective ingredient is emanated, the heating element being heated when energized. A heating element structure of a heat dissipating device comprising a heating element that generates heat, and a heating holder attached to the heating element and having a recess for holding the emitting element on a surface facing the attachment point, wherein the heating holder includes: A heating element structure for a heat dissipation device, characterized in that the wall thickness is gradually decreased from the recessed portion toward the outside.