JP3585164B2 - Heater - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The invention relates to a heater.
[0002]
[Prior art]
As a heater for the evaporant, there is an evaporator in which an evaporator container containing an evaporant is stored in a container storage portion of a housing and heated to evaporate vapor of the evaporant into an external space.
[0003]
[Problems to be solved by the invention]
Conventional heaters are provided with radiating fins and radiating holes to prevent overheating of the housing for handling such as replacement of the evaporation container into the container storage part of the housing, so the appearance of the heater is poor. In addition, foreign matter easily enters the inside of the heater. Further, part of the heat generated by the heater is wastefully radiated from the radiating fins and the radiating port, and the heating efficiency is poor.
[0004]
An object of the present invention is to improve the appearance of a heater, to prevent foreign matter from entering the inside of the heater, and to improve the efficiency of heating the evaporation container by the heater.
[0005]
[Means for Solving the Problems]
The invention according to claim 1 is a heater for heating an evaporation container containing an evaporating agent, wherein a spherical curved surface or an inner surface of a curved surface of a container storage portion for storing the evaporation container extends downward from an upper portion on a front side. A first housing to be formed, and a second housing detachably mounted on a side opposite to a side of the first housing on which the container housing portion is formed and on a side that is a rear side of the heater .
A plate-like heater is disposed between the first housing and the second housing along the container housing portion of the first housing in an inclined arrangement with respect to the vertical plane , and a support projection on which the heater is seated is provided in the second housing. And a heat insulating portion formed of a heat insulating air layer around the seating portion of the heater in the second housing.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
As shown in FIG. 1, the heater 10 includes a housing 11 for storing the evaporation container 30 in the housing 11. The container storage part 12 has an upper part opened in a dome shape, and the evaporation container 30 is put in and out of the opening. The inner surface 12A of the container storage portion 12 is formed into a spherical curved surface or a curved surface, and the lower storage space of the container storage portion 12 is formed so that the cross-sectional area gradually decreases from the convex portion 12B. A cap 13 is detachably provided on the front surface of the housing 11 with the container storage section 12 interposed therebetween, and the cap 13 is provided with a fragrance evaporation port 13A.
[0007]
The housing 11 of the heater 10 includes a first housing 11A forming a container housing 12 and a second housing 11B detachably mounted on a side of the first housing 11A opposite to the side forming the container housing 12. The heater 20 is built in between the first housing 11A and the second housing 11B. The heater 20 includes an electrode terminal 21 seated on the support protrusion 14 provided on the second housing 11B, a heater element 22 supported on the back by the spring protrusion 21A of the electrode terminal 21 and electrically connected thereto, and a heater element. The heat dissipation terminal 23 is in close contact with the first housing 11A in a state in which the electrode terminal 21 is in close contact with the front surface of the first housing 22, and the electrode terminal 21 is connected to the plug 24. The heater 10 is used by inserting the plug 24 into a wall outlet.
[0008]
Here, the heater 10 configures the heater 20 as follows.
The heat dissipation terminal 23 of the heater 20 is formed in a plate shape, and the heat dissipation terminal 23 is provided along the curved inner surface 12A of the container housing portion 12 of the first housing 11A. Further, the center of the heat radiation terminal 23 is shifted toward the lower side from the center of the curved inner surface 12A of the container housing portion 12 (a protrusion 12B described later), and the heat radiation terminal 23 is positioned closer to the lower end than the upper end. The heat dissipating terminals 23 are inclined with respect to the vertical plane so as to be closer to the curved inner surface 12A.
[0009]
A heat insulating portion 25 made of a heat insulating air layer 25A is provided on the side of the housing 11 opposite to the side of the heater 20 facing the container storage section 12, in other words, around the seating portion of the electrode terminal 21 in the second housing 11B. The outer surface of 11B was not provided with a radiating fin or a radiating port.
[0010]
The heater element 22 of the heater 20 has a self-temperature control function. That is, when the temperature of the heater 20 (the heater element 22 and the heat radiation terminal 23) exceeds a certain temperature, the resistance of the heater element 22 increases, thereby restricting energization and preventing overheating. For example, when the electrode terminal 21 is made of stainless steel and the heat radiating terminal 23 is made of aluminum, and the heat radiating terminal 23 is set at 60 ° C., the heater 20 has a power consumption of 0.4 W and the inner surface 12A of the container housing 12 has a temperature of 50 ° C. The outer surface of the first housing 11B could be kept at 30 ° C. In the prior art, the power consumption for setting the inner surface 12A of the container housing 12 to 50 ° C. was 1.5 W.
[0011]
The evaporating container 30 has a case 31 for accommodating the evaporating agent 1 formed as a substantially spherical surface 31A along the inner surface 12A of the container storing portion 12 without or with a small gap therebetween. I do. Further, by forming the inner surface of the case 31 outwardly convex and providing the concave portion 31B on the outer surface of the convex shape, the rigidity of the surface is improved and further deformation is prevented. Further, the concave portion 31B is provided in the center of the surface of the evaporation container 30, and the convex portion 12B is provided on the inner surface 12A of the container storage portion 12 of the heater 10 at a position corresponding to the concave portion 31B, so that they are locked to each other. Can be prevented from falling down. The opening of the case 31 is sealed with a film 32 such as a gas-permeable, stretchable film. The transpiration agent 1 may be a mixture of a perfume (which may be an insecticide or the like), a solvent, and a gelled material to form a gel.
[0012]
In the heater 10, the evaporating container 30 is used in an exchangeable manner in the container storage portion 12 of the housing 11, and the evaporating agent 1 evaporates by heating the evaporating container 30 from the outside of the case 31 by the heater 20. Is transmitted through the film 32 to evaporate into the external space. At this time, as the evaporant 1 evaporates, the surface level of the evaporant 1 in the evaporating container 30 decreases due to gravity, and as the internal pressure of the case 31 is reduced by the evaporation of the evaporant 1 on the film 30, It expands and deforms concavely so as to follow the evaporant 1 remaining inside.
[0013]
Therefore, according to the present embodiment, the following operations are provided.
{Circle around (1)} Since the heater 10 is not provided with a heat radiation fin or a heat radiation port, the appearance becomes smart and it becomes easy for women to accept. Since there is no heat radiating port, it is possible to avoid intrusion of foreign matter into the inside of the heater 10 and to operate stably.
[0014]
{Circle around (2)} Since the heat insulating portion 25 is provided on the side of the housing 11 opposite to the side of the heater 20 facing the container storage section 12, the heat generated by the heater 20 is effectively transmitted to the container storage section 12, and the heat is wasted from the opposite side. Is gone. Therefore, overheating of the housing 11 can be prevented even without the radiation fins, and the heating efficiency can be improved.
[0015]
{Circle around (3)} By configuring the heat insulating portion 25 with the heat insulating air layer 25A, the heat insulating portion 25 can be easily configured.
[0016]
{Circle over (4)} Since the heater 20 has a self-temperature control function, overheating of the container housing 12 can be reliably prevented, and the heating efficiency can be improved.
[0017]
The heater 10 of FIG. 2 is substantially different from the heater 10 of FIG. This is also because the curved inner surface 12A is a spherical curved surface along a wide range of up, down, left, and right around the center of the curved inner surface 12A.
[0018]
【The invention's effect】
As described above, according to the present invention, the appearance of the heater can be improved, foreign substances can be prevented from entering the inside of the heater, and the efficiency of heating the evaporation container by the heater can be improved.
[Brief description of the drawings]
FIG. 1 is a sectional view showing a heater according to a first embodiment.
FIG. 2 is a cross-sectional view illustrating a heater according to a second embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Evaporator 10 Heater 11 Housing 12 Container storage part 20 Heater 25 Insulation part 25A Insulated air layer 30 Evaporation container

Claims (3)

A heater for heating a transpiration container containing a transpirant,
A first housing for forming the inner surface of the spherical curved or curved surface of the container storage portion for storing the evaporation container from an upper portion on the front side to a lower portion, and a side opposite to the side of the first housing on which the container storage portion is formed. A second housing detachably attached to the rear side of the heater .
A plate-like heater is disposed between the first housing and the second housing along the container housing portion of the first housing in an inclined arrangement with respect to the vertical plane , and a support projection on which the heater is seated is provided in the second housing. A heater provided with a heat insulating portion formed of a heat insulating air layer around a seated portion of the heater in the second housing. The heater according to claim 1, wherein the heater has a self-temperature control function. The heater according to claim 1 or 2, wherein the heater is not provided with a radiation fin or a radiation port.

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