JPH08296920A - Dehumidifier - Google Patents

Abstract

PURPOSE: To reduce noises attributed to a resistance of an air path and a heat loss as well. CONSTITUTION: This dehumidifier is constituted of an electronic cooling module 1 comprising a thermoelectric element, a heat-absorbing part 2 contacting a cooling surface of the electronic cooling module 1, a heat radiation part 3 contacting a heat radiating surface of the electronic cooling module 1 and an air blowing part to blow air to an air path where the heat-absorbing part 2 and the heat radiation part 3 are both arranged. The heat-absorbing part 2 and the heat radiation part 3 are connected to the electronic cooling module separately at least at one end thereof alone while being so formed as to comprise highly heat conductive members 21 and 31 extending in the direction of crossing the air path and fins 22 and 32 provided on the highly heat conductive members. Thus, the air path where the heat-absorbing part 2 and the heat radiation part 3 are arranged can be made linear for a less resistance thereof and also heat loss of the heat radiation part can be suppressed as liable to be a problem rather than the heat-absorbing part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehumidifier for dehumidifying by cooling air with an electronic cooling module composed of thermoelectric elements.

[0002]

2. Description of the Related Art As shown in FIGS. 15 and 16, a dehumidifier disclosed in Japanese Patent Application Laid-Open No. 5-272775, which uses an electronic cooling module composed of thermoelectric elements, has a surface on the heat absorption side of the electronic cooling module 1, as shown in FIGS. Heat absorption part 2 with many fins
Is placed in contact with the heat dissipation portion 3 having a large number of fins on the surface on the heat generation side, and the heat absorption portion 2 and the heat dissipation portion 3 are arranged in the air flow path in which the blower fan 4 is installed. The air sucked through the suction port 5 during operation is cooled by bringing it into contact with the heat-absorbing portion 2 to cause dew condensation to dehumidify it, and then is brought into contact with the heat-dissipating portion 3 to heat it to the original temperature. The water is discharged from the discharge port 6 (by cooling the heat radiating portion 3), and the water generated by the condensation is stored in the tank 7.

[0003]

However, in the one disclosed in the above publication, as apparent from the drawing, the heat absorbing portion 2 is arranged on the lower surface side of the electronic cooling module 1 and the heat radiating portion 3 is arranged on the upper surface side thereof. Therefore, the air flow path connecting the heat absorbing section 2 and the heat radiating section 3 is curved, and the air path resistance is high,
This caused noise. Further, since the heat absorbing portion 2 and the heat radiating portion 3 are located apart from each other by the curved portion on the air passage,
The temperature of the air cooled by passing through the heat absorbing portion 2 rises while reaching the heat radiating portion 3, and heat cannot be effectively radiated.

In Japanese Utility Model Publication No. 62-46096, as shown in FIG. 17, since the heat absorbing portion 2 and the heat radiating portion 3 are arranged along a straight air passage, the wind Although the noise due to the road resistance is small, the distance from the contact surface with the electronic cooling module 1 to the fin portion of the heat dissipation part 3 is longer than that on the heat absorption side, and the heat dissipation side has more heat passing therethrough than the heat absorption side. Considering the above, the thermal loss was large.

The present invention has been made in view of the above points, and an object of the present invention is to provide a dehumidifier which produces less noise due to airflow resistance and also has less thermal loss.

[0006]

SUMMARY OF THE INVENTION The present invention, therefore, provides an electronic cooling module including a thermoelectric element, a heat absorbing portion in contact with a cooling surface of the electronic cooling module, and a heat radiating portion in contact with a heat radiating surface of the electronic cooling module. In the dehumidifier consisting of a blower unit for blowing air to the air passage in which both the heat absorbing unit and the heat radiating unit are arranged, the heat absorbing unit and the heat radiating unit are respectively connected to the electronic cooling module at least one end and in a direction traversing the air passage. The first characteristic is that the heat conducting member extends and the fins provided on the heat conducting member are formed.

Both ends of the heat conducting member here may be connected to different electronic cooling modules, or a plurality of heat conducting members may be provided. The length of the heat conducting member of the heat absorbing portion is made shorter than the length of the heat conducting member of the heat radiating portion, or the fin pitch provided on the heat conducting member of the heat absorbing portion is provided on the heat conducting member of the heat radiating member. It is also preferable to make the pitch larger than the pitch of the fins. It is also preferable that the plurality of heat conducting members are arranged in parallel to the cross section of the air passage.

Further, the electronic cooling module to which the heat radiating portion is connected and the electronic cooling module to which the heat absorbing portion is connected may be connected by a good heat conductor, and the electronic cooling module has the heat radiating portion connected to one surface thereof. Further, the heat absorbing portion may be connected to the other surface via a heat receiving member that is bent in an L shape, and the sandwiching surface of the electronic cooling module may be substantially parallel to the air passage.

Further, according to the present invention, the heat absorbing portion and the heat radiating portion are each formed of a heat conducting member which has one surface connected to the electronic cooling module and which has a large number of ventilation holes and traverses the air passage. It has two characteristics. As the heat conducting member, one having fins integrally provided can be used, and it is also preferable that the heat dissipation hole has irregularities.

[0010]

According to the present invention, the air passage in which the heat absorbing portion and the heat radiating portion are arranged can be made to have a linear air passage resistance with a small resistance, and the heat of the heat radiating portion, which is more likely to be a problem than the heat absorbing portion. Loss can be suppressed. If both ends of the heat conducting member here are connected to different electronic cooling modules, the dehumidifying ability can be made high, and if a plurality of heat conducting members are provided, the heat exchange efficiency is increased. be able to. The length of the heat conducting member of the heat absorbing portion is made shorter than the length of the heat conducting member of the heat radiating portion, or the fin pitch provided on the heat conducting member of the heat absorbing portion is provided on the heat conducting member of the heat radiating member. When the pitch of the fins is larger than the pitch of the fins, a good balance between the heat absorption side and the heat radiation side of the electronic cooling module can be maintained. When a plurality of heat conducting members are arranged in parallel to the cross section of the air passage, the heat conducting area can be increased without blocking the air passage with the heat conducting member.

Further, even if the electronic cooling module to which the heat radiating portion is connected and the electronic cooling module to which the heat absorbing portion is connected are connected by a good thermal conductor, the dehumidifying ability can be enhanced and the electronic cooling module Since the heat radiating surface and the cooling surface can be respectively directed to the air passage side, the thermal resistance of these portions can be reduced. In the case where the heat radiating portion is connected to one surface of the electronic cooling module and the heat absorbing portion is connected to the other surface via a heat receiving member bent in an L-shape, the sandwiching surface of the electronic cooling module is substantially parallel to the air passage. ,
The heat resistance of the heat dissipation side of the electronic cooling module can be reduced.

Further, even in the case where the heat absorbing portion and the heat radiating portion are formed of heat conducting members each having one surface connected to the electronic cooling module and having a large number of ventilation holes and traversing the air passage, the heat absorbing portion and the heat radiating portion are also provided. It is possible to reduce the linear air passage resistance of the air passage in which the is arranged, and to suppress the thermal loss of the heat radiating portion, which is more likely to be a problem than the heat absorbing portion.

If a heat conducting member integrally provided with fins is used, thermal loss due to contact heat resistance can be reduced. And the heat exchange efficiency is improved.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the illustrated embodiments. In FIG. 1, a heat absorbing portion 2 is provided on the lower surface of the thermoelectric cooling module 1 which is a thermoelectric element (Peltier element).
However, the heat dissipation portion 3 is attached to the surface on the heat generating side of the upper surface. The heat absorbing part 2 and the heat radiating part 3 here are respectively heat receiving members 20 and 30 which are in contact with the electronic cooling module 1, and heat conducting members 21 and 31 which extend from the heat receiving members 20 and 30 in parallel with the sandwiching surface of the electronic cooling module 1. And each heat conducting member 2
It is composed of a large number of fins 22 and 32 attached to 1, 31 and is a corner of an air passage where the blower fan 4 is installed on the side of the discharge port 6 from the suction port 5 on the side surface to the discharge port 6 on the upper surface. The electronic cooling module 1 is provided in the heat exchanger 2, and the heat conducting portions 21 and 31 of the heat absorbing portion 2 and the heat radiating portion 3 are arranged so as to cross the vertically running portion of the air passage. The air sucked from the suction port 5 by the operation of the blower fan 4 comes into contact with the heat absorbing portion 2 that traverses the air passage and is cooled to cause dew condensation to be dehumidified, and then the heat radiating portion 3 is cooled and then discharged. It is discharged from the outlet 6.
Since the heat absorbing portion 2 and the heat radiating portion 3 are sequentially arranged in the straight line portion of the air passage, the air passage resistance is small, and the noise is accordingly small. Since the distances to reach the fins 22 and 32 are the same, the thermal loss is small.

In the embodiment shown in FIG. 2, a pair of electronic cooling modules 1 and 1 are provided, and a heat absorbing portion 2 and a heat radiating portion 3 are provided.
As for the heat receiving members 20 and 20, which are in contact with the respective electronic cooling modules 1 and 1, are the heat conducting members 21 and the heat receiving member 3
It is assumed that 0 and 30 are connected by the heat conducting member 31. In the embodiment shown in FIG. 3, the length of the heat conducting member 21 on the heat absorbing portion 2 side is shortened and the number of fins 22 is reduced according to the difference in the amount of heat passing through between the heat absorbing portion 2 side and the heat radiating portion 3 side. It was done. As shown in FIG. 4, the length of the heat conducting member 21 may remain the same as that of the heat conducting member 31 of the heat radiating portion 3, and the pitch of the fins 22 may be larger than the pitch of the fins 32.

In the embodiment shown in FIG. 5, the electronic cooling module 1 is arranged in the center of the cross section of the air passage, and the heat absorbing portion 2 and the heat radiating portion 3 above and below the electronic cooling module 1 are arranged in two directions on both sides from the heat receiving members 20 and 30. The heat conducting members 21 and 31 are formed so as to project therefrom. As shown in FIG. 6, a plurality of heat-conducting members 21 and 31 may be formed so as to radially project, and in this case, the heat-conducting member 21 and the heat-conducting member 3 may be formed.
The position 1 and the position 1 may be displaced in the circumferential direction.

FIG. 7 and FIG. 8 show another embodiment. The heat absorbing portion 2 and the heat radiating portion 3 here are flat plates and the heat conducting member 2 whose central portion on each surface is in contact with the electronic cooling module 1
1 and 31 and fins 22 and 32 projecting from the other surfaces of the heat conducting members 21 and 31, respectively.
A large number of vent holes 23 and 33 are provided in the portion between the fins 22 and 32 of 1 and 31.

The heat absorbing portion 2 and the heat radiating portion 3 in this embodiment.
Also, the air is installed so as to cross the air passage, and the air flowing from the suction port 5 to the discharge port 6 flows through the ventilation holes 23 and 33. If the edges of the vent holes 23 and 33 are made uneven as shown in FIG. 9, the heat exchange efficiency is further increased. The embodiment shown in FIG. 10 and FIG.
1 and 31 are formed as thick members and a large number of vent holes 23 and 33 are formed. In this case, air is cooled or heated while passing through the vent holes 23 and 33. If the ventilation holes 23 and 33 in this embodiment also have irregularities as shown in FIG. 12, the surface area becomes large and the heat exchange efficiency becomes high.

The embodiment shown in FIG. 13 has a pair of electronic cooling modules 1 connected by a heat radiating portion 3 which traverses an air passage.
1 is connected to the heat radiating surfaces of a pair of electronic cooling modules 1, 1 connected by a heat absorbing portion 2 that traverses the air passage, with good thermal conductors 9, 9.
The heat radiating surface and the cooling surface of can be respectively directed to the air passage side. Further, here, as the heat radiating portion 3, one having a plurality of heat conducting members 31 is used.

As shown in FIG. 14, a pair of electronic cooling modules 1, 1 connected by a heat radiating portion 3 which traverses the air passage.
A pair of heat receiving members 20 connected in an L shape on the heat absorbing surface of
The heat conducting part 21 and the fins 22 of the heat absorbing part 2 may be connected to each other by the heat absorbing part 2 having 20 and may be installed so as to cross the air passage upstream of the heat radiating part 3. Also in this case, the heat dissipation surface of the electronic cooling module 1 can be directed to the air passage side.

[0021]

As described above, according to the present invention, the air passage in which the heat absorbing portion and the heat radiating portion are arranged can be made to have a linear air passage resistance which is less and more problematic than the heat absorbing portion. It is possible to suppress the thermal loss of the heat dissipation part that is easy to do, and moreover, since the heat absorption part and the heat dissipation part can be arranged close to each other, the cooling of the heat dissipation part by the air cooled by the heat absorption part is effective. Is something that can be done.

If both ends of the heat conducting member are connected to different electronic cooling modules, the heat transfer distance from the electronic cooling module is shortened, so that the heat exchange efficiency is improved and the dehumidifying ability is high. The heat exchange efficiency can be improved even when a plurality of heat conducting members are provided. Further, the length of the heat conducting member of the heat absorbing portion is made shorter than the length of the heat conducting member of the heat radiating portion, or the fin pitch provided on the heat conducting member of the heat absorbing portion is set to be the heat conducting member of the heat radiating member. When the pitch is larger than the pitch of the fins provided on the heat sink side, it is possible to maintain a good balance between the heat sink side and heat sink side of the electronic cooling module, and the heat sink side falls below the dew point of the external air, reducing the dehumidification capacity. There is nothing to do.

When a plurality of heat conducting members are arranged in parallel to the cross section of the air passage, the heat conducting area can be widened without blocking the air passage with the heat conducting member. The thermal resistance of can be reduced. Further, when the electronic cooling module to which the heat dissipation part is connected and the electronic cooling module to which the heat absorption part is connected are connected by a good heat conductor, the dehumidifying ability can be increased and the heat dissipation surface of the electronic cooling module can be improved. Moreover, since the cooling surfaces can be respectively directed to the air passage side, the thermal resistance of these portions can be reduced, and efficient dehumidification can be performed.
Even in the case where the heat radiating portion is connected to one surface of the electronic cooling module and the heat absorbing portion is connected to the other surface through a heat receiving member bent in an L shape, and the sandwiching surface of the electronic cooling module is substantially parallel to the air passage. Since the heat resistance of the heat dissipation side of the electronic cooling module can be reduced, the dehumidifying ability can be improved.

Further, even in the case where the heat absorbing portion and the heat radiating portion are formed of heat conducting members each having one surface connected to the electronic cooling module and having a large number of ventilation holes and traversing the air passage, the heat absorbing portion and the heat radiating portion are also provided. It is possible to reduce the linear air passage resistance of the air passage in which the is arranged, and to suppress the thermal loss of the heat radiating portion, which is more likely to be a problem than the heat absorbing portion.

At this time, if a heat conducting member integrally provided with fins is used, it is possible to reduce the thermal loss due to the contact thermal resistance of both heat absorption and heat dissipation, and the heat absorption and heat dissipation can be reduced. Thermally, when the heat dissipation holes have irregularities, the surface area increases, so the heat exchange efficiency improves.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment.

FIG. 2 is a sectional view of another example of the above.

FIG. 3 is a sectional view of still another example of the above.

FIG. 4 is a cross-sectional view of another example of the above.

FIG. 5 is a cross-sectional view of another embodiment.

FIG. 6 is a horizontal sectional view of another example of the above.

FIG. 7 is a schematic cross-sectional view of another embodiment.

FIG. 8 is a partial plan view of the above.

FIG. 9 is a partial plan view of another example of the above.

FIG. 10 is a cross-sectional view of another embodiment.

FIG. 11 is a partial horizontal sectional view of the above.

FIG. 12 is a partial plan view of another example of the above.

FIG. 13 is a sectional view of a different embodiment.

FIG. 14 is a cross-sectional view of another example of the above.

FIG. 15 is a sectional view of a conventional example.

FIG. 16 is a perspective view of the above.

FIG. 17 is a cross-sectional view of another conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronic cooling module 2 Heat absorption part 3 Heat dissipation part 4 Blower fan 21 Good heat conducting member 31 Good heat conducting member

[Procedure amendment]

[Submission date] June 12, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 5

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 11

[Correction method] Change

[Correction content]

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

Both ends of the heat conducting member here may be connected to different electronic cooling modules, or a plurality of heat conducting members may be provided. The length of the heat conducting member of the heat absorbing portion is made shorter than the length of the heat conducting member of the heat radiating portion, or the fin pitch provided on the heat conducting member of the heat absorbing portion is provided on the heat conducting member of the heat radiating portion. It is also preferable to make the pitch larger than the pitch of the fins. It is also preferable that the plurality of heat conducting members are arranged in parallel to the cross section of the air passage.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

Further, according to the present invention, the heat absorbing portion and the heat radiating portion are each formed of a heat conducting member which has one surface connected to the electronic cooling module and which has a large number of ventilation holes and traverses the air passage. It has two characteristics. The thermal good-member can be used that integrally includes the fin, the through
It is also preferable that the pores have irregularities.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction content]

[0010]

According to the present invention, the air passage in which the heat absorbing portion and the heat radiating portion are arranged can be made to have a linear air passage resistance with a small resistance, and the heat of the heat radiating portion, which is more likely to be a problem than the heat absorbing portion. Loss can be suppressed. If both ends of the heat conducting member here are connected to different electronic cooling modules, the dehumidifying ability can be made high, and if a plurality of heat conducting members are provided, the heat exchange efficiency is increased. be able to. The length of the heat conducting member of the heat absorbing portion is made shorter than the length of the heat conducting member of the heat radiating portion, or the fin pitch provided on the heat conducting member of the heat absorbing portion is provided on the heat conducting member of the heat radiating portion. When the pitch of the fins is larger than the pitch of the fins, a good balance between the heat absorption side and the heat radiation side of the electronic cooling module can be maintained. When a plurality of heat conducting members are arranged in parallel to the cross section of the air passage, the heat conducting area can be increased without blocking the air passage with the heat conducting member.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction content]

Further, an electronic cooling module to which a heat radiation section is connected
Module and the electronic cooling module to which the heat absorption part is connected.
Increase the dehumidification capacity even if connected with a good conductor of heat
In addition, the heat dissipation surface of the electronic cooling module and the cooling
Since the rejection surface can be turned to the windward side,
The thermal resistance of the part can be reduced. Electronic cooling
Connect the heat sink to one side of the module and bend it to the other side in an L shape.
Electronic cooling by connecting the heat absorbing part through a bent heat receiving member
If the clamping surface of the module is approximately parallel to the air duct,
It is possible to reduce the thermal resistance on the heat dissipation side of the child cooling module.
it can.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction content]

If a heat conducting member integrally provided with fins is used, thermal loss due to contact heat resistance can be reduced, and when the vent hole has irregularities, the surface area is reduced. And the heat exchange efficiency is improved.

[Procedure Amendment 8]

[Document name to be amended] Statement

[Name of item to be corrected] 0022

[Correction method] Change

[Correction content]

If both ends of the heat conducting member are connected to different electronic cooling modules, the heat transfer distance from the electronic cooling module is shortened, so that the heat exchange efficiency is improved and the dehumidifying ability is high. The heat exchange efficiency can be improved even when a plurality of heat conducting members are provided. Further, the length of the heat conducting member of the heat absorbing portion is made shorter than the length of the heat conducting member of the heat radiating portion, or the pitch of the fins provided on the heat conducting member of the heat absorbing portion is set to be the heat conducting member of the heat radiating portion. When the pitch is larger than the pitch of the fins provided on the heat sink side, it is possible to maintain a good balance between the heat sink side and heat sink side of the electronic cooling module, and the heat sink side falls below the dew point of the external air, reducing the dehumidification capacity. There is nothing to do.

[Procedure Amendment 9]

[Document name to be amended] Statement

[Name of item to be corrected] 0025

[Correction method] Change

[Correction content]

[0025] In this case, the use of the those with fins integrally with the heat electrically good member, it is assumed that it is possible to reduce the thermal loss at by the thermal contact resistance of both the heat absorption part and the heat radiating portion, the heat absorbing portion Also, when the vent holes of the heat dissipation portion are made uneven, the surface area is increased and the heat exchange efficiency is improved.

[Procedure Amendment 10]

[Document name to be amended] Statement

[Name of item to be corrected] Figure 7

[Correction method] Change

[Correction content]

FIG. 7 is a cross-sectional view of another embodiment.

[Procedure Amendment 11]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 11

[Correction method] Change

[Correction content]

FIG. 11 is a partial plan view of the above.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hiroaki Okada 1048, Kadoma, Kadoma-shi, Osaka Prefecture Matsushita Electric Works Co., Ltd.

Claims (11)

[Claims] 1. An electronic cooling module composed of a thermoelectric element, a heat absorbing portion in contact with a cooling surface of the electronic cooling module, and a heat radiating portion in contact with a heat radiating surface of the electronic cooling module,
A dehumidifier comprising a blower unit for blowing air to an air passage in which both a heat absorbing unit and a heat radiating unit are arranged, wherein the heat absorbing unit and the heat radiating unit each have at least one end connected to the electronic cooling module and a direction crossing the air passage. A dehumidifier characterized in that the dehumidifier is formed of a heat conducting member extending to the heat conducting member and a fin provided on the heat conducting member. 2. The heat conducting member is connected to different electronic cooling modules at both ends thereof.
Dehumidifier as described. 3. The dehumidifier according to claim 1, wherein a plurality of heat conducting members are provided. 4. The dehumidifier according to claim 1, wherein the length of the heat conducting member of the heat absorbing portion is shorter than the length of the heat conducting member of the heat radiating portion. 5. The dehumidifying device according to claim 1, wherein the pitch of the fins provided on the heat conducting member of the heat absorbing portion is larger than the pitch of the fins provided on the heat conducting member of the heat radiating member. vessel. 6. The dehumidifier according to claim 1, wherein a plurality of heat conducting members are provided and arranged in parallel to the cross section of the air passage. 7. The dehumidifier according to claim 1, wherein the electronic cooling module to which the heat radiation part is connected and the electronic cooling module to which the heat absorption part is connected are connected by a good thermal conductor. 8. The electronic cooling module has a heat radiating portion connected to one surface thereof, and a heat absorbing portion connected to the other surface thereof via a heat receiving member bent in an L shape, and the holding surface of the electronic cooling module serves as an air passage. The dehumidifier according to claim 1, wherein the dehumidifiers are substantially parallel to each other. 9. An electronic cooling module including a thermoelectric element, a heat absorbing portion that contacts a cooling surface of the electronic cooling module, and a heat radiating portion that contacts a heat radiating surface of the electronic cooling module,
It is a dehumidifier consisting of an air blower that blows air into an air passage in which both a heat absorbing unit and a heat radiating unit are arranged.The heat absorbing unit and the heat radiating unit each have one surface connected to the electronic cooling module and a large number of vent holes. A dehumidifier characterized by being formed of a heat conducting member that crosses the air passage. 10. The dehumidifier according to claim 9, wherein the fin is integrally formed with the heat conducting member. 11. The dehumidifier according to claim 9, wherein the heat radiation holes have irregularities.