JPH11304193A - Humidity control ventilation unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need for an indoor machine and piping construction exclusive for dehumidification. SOLUTION: The inside of a casing 1 is divided into an air supply path 3 and an exhaust path 2 by a partition plate 6. Supply air SA that is supplied from the outside to the inside of a room circulates the air supply path 3. Exhaust gas EA that is discharged from the inside to the outside of the room circulates the exhaust path 2. The partition plate 6 is provided with a sensible heat exchanger 4. A Peltier element 5 is provided at the partition plate 6 at the outside the room from the sensible heat exchanger 4. The heat absorption side of the Peltier element 5 is located at the air supply path 3 and the heat discharge side is located at the exhaust path 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidity control ventilation unit for performing ventilation while dehumidifying supply air taken in by ventilation.

[0002]

2. Description of the Related Art FIG. 4 is a schematic sectional view showing a conventional example of the above-described humidity control and ventilation unit. The inside of the casing 41 of the humidity control ventilation unit is partitioned by a partition plate 46 into an air supply passage 43 provided with an air supply fan 49 and an exhaust passage 42 provided with an exhaust fan 48. When the air supply fan 49 and the exhaust fan 48 operate, the air supply SA supplied from outside to the room flows through the air supply passage 43, and is discharged from the room to the outside through the exhaust passage 42. The exhaust EA is circulated. The partition plate 46 is provided with a sensible heat exchanger 44. The sensible heat exchanger 44 exchanges sensible heat between the supply air SA and the exhaust air EA. That is, in the sensible heat exchanger 44, only heat is exchanged between the supply air SA and the exhaust air EA, and no exchange of moisture or odor is performed.

Further, an evaporator 45 is provided in the air supply passage 43 upstream of the sensible heat exchanger 44. The evaporator 45 is connected to the outdoor unit 40 via a refrigerant pipe 50 to form a refrigerant circuit, and supply air SA flowing through the air supply passage 43.
It functions as an air supply cooler for cooling air. When the supply air SA is cooled, a drain is generated in the evaporator 45. A drain pan 47 is provided to receive the drain.

In the humidity control and ventilation unit as described above, the supply air SA sucked from outside by the operation of the supply fan 49.
Is cooled and dehumidified by the evaporator 45. Then, the dehumidified supply air SA exchanges heat with the exhaust EA discharged from the room in the sensible heat exchanger 44. After the temperature becomes substantially equal to the room temperature by this heat exchange, the supply air SA is supplied to the room. Thus, in the above-mentioned conventional humidity control ventilation unit, ventilation can be performed while dehumidifying the supply air SA.

[0005]

The evaporator 45 functioning as an air supply cooler is connected to the outdoor unit 40 by the refrigerant pipe 50 as described above. A compressor, a condenser, a decompression mechanism, and the like are provided in the outdoor unit 40, and form a refrigerant circuit together with the evaporator 45. Since such a refrigerant circuit is used exclusively for dehumidification, the outdoor unit 40 is also exclusively used for dehumidification. In other words, in order to form a humidity control ventilation unit by adding a dehumidifying function to the ventilation unit, it is necessary to separately provide an outdoor unit 40 having a compressor and the like, and a refrigerant pipe 50 is provided between the outdoor unit 40 and the outdoor unit 40. That is, it must be connected with. Therefore, when installing the equipment, it is necessary to secure the installation space for the outdoor unit 40 and to perform the piping work, which causes a problem that the installation workability is reduced.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a humidity control ventilation unit capable of eliminating the need for an outdoor unit dedicated to dehumidification and piping work. It is in.

[0007]

Therefore, the humidity control and ventilation unit according to the first aspect of the present invention provides an air supply passage 3 through which air supply air SA is supplied from the outdoor unit 18 to the indoor unit 11, and is discharged from the indoor unit 11 to the outdoor unit 18. In a humidity control ventilation unit including an exhaust path 2 through which exhaust EA flows and an air supply cooler arranged in the air supply path 3, the heat absorbing side of the Peltier element 5 is made to function as the air supply cooler. It is characterized by having.

In this humidity control and ventilation unit, the supply air SA can be cooled by the Peltier element 5, so that it is not necessary to form a refrigerant circuit, and it is possible to eliminate the need for a conventional outdoor unit dedicated to dehumidification. Become.

Further, the humidity control and ventilation unit according to claim 2 is characterized in that the heat radiation side of the Peltier element 5 is disposed in the exhaust passage 2.

In this humidity control and ventilation unit, heat released from the heat radiation side of the Peltier element 5 can be discharged to the outdoor 18 using the exhaust EA.

Further, the humidity control and ventilation unit according to claim 3 is characterized in that the Peltier element 5 is attached to a partition member 6 that partitions between the air supply path 3 and the exhaust path 2.

In this humidity control and ventilation unit, the partition member 6 can perform both partitioning between the air supply path 3 and the exhaust path 2 and mounting of the Peltier element 5.

According to a fourth aspect of the present invention, the exhaust path 2 is formed above the partition member 6, and the air supply path 3 is formed below the partition member 6.
Is characterized in that it is attached to the partition member 6 such that the heat radiation side is on the upper side and the heat absorption side is on the lower side.

In this humidity control and ventilation unit, it becomes possible to efficiently apply the heat rising from the heat radiation side of the Peltier element 5 to the exhaust EA, and to efficiently supply the cold heat falling from the heat absorption side of the Peltier element 5. It can be applied to the energy SA.

A humidity control ventilation unit according to a fifth aspect is characterized in that a convex portion 17 protruding into the air supply passage 3 or the exhaust passage 2 is formed on the heat absorption side or the heat radiation side of the Peltier element 5, respectively. I have.

In this humidity control and ventilation unit, the heat absorption area or heat radiation area of the Peltier element 5 can be increased, so that the heat absorption efficiency and heat radiation efficiency can be improved.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, specific embodiments of the humidity control and ventilation unit of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic sectional view showing the humidity control ventilation unit. The inside of the casing 1 of the humidity control ventilation unit is vertically divided by a partition plate (partition member) 6. The partitioned upper space serves as an exhaust passage 2 provided with an exhaust fan 8, and the partitioned lower space serves as an air supply passage 3 provided with an air supply fan 9. When the air supply fan 9 and the exhaust fan 8 operate, the air supply SA supplied from the outdoor 18 to the room 11 (both shown in FIG. 2) flows through the air supply path 3, and The exhaust air EA discharged from the room 11 to the outside 18 flows through the room. The partition plate 6 is provided with the sensible heat exchanger 4. The sensible heat exchanger 4 performs sensible heat exchange between the supply air SA and the exhaust air EA. That is, in the sensible heat exchanger 4, only the exchange of heat is performed between the supply air SA and the exhaust air EA, and the exchange of moisture and odor is not performed.

Further, a Peltier element 5 is mounted on a partition plate 6 outside the sensible heat exchanger 4 (on the left side in the figure). The Peltier element 5 is an element configured to perform heat absorption and heat radiation by using a Peltier effect by flowing a current between terminals. Specifically, the structure is such that P-type thermoelectric semiconductor chips and N-type thermoelectric semiconductor chips are alternately arranged, and these chips are connected to each other. Then, one side surface on which current flows from the N-type thermoelectric semiconductor chip to the P-type thermoelectric semiconductor chip becomes the heat absorbing side, and the other side surface on which current flows from the P-type thermoelectric semiconductor chip to the N-type thermoelectric semiconductor chip becomes the heat dissipation side. is there. FIG. 3 is an enlarged perspective view of the Peltier device 5. As shown in the figure, a plurality of fins (projections) 17 are provided on the heat absorption side and the heat radiation side of the Peltier element 5, respectively. Therefore, as shown in FIG. 1, the Peltier element 5 is positioned in the air supply passage 3 together with the fins 17 with its heat absorbing side down, and the exhaust path 2 with its fins 17 upside. It is provided to be located inside. A drain pan 7 is provided below the Peltier element 5.
Is arranged.

FIG. 2 is a schematic sectional view showing a house 10 in which the humidity control and ventilation unit configured as described above is installed. In this humidity control ventilation unit, the outflow end (the right end in the figure) of the air supply passage 3 is communicated with the room 11 by the first air supply duct 12, and the inflow end (the right end in the figure) of the exhaust passage 2 is the first end. One exhaust duct 13 communicates with the room 11. The inflow end (left end in the figure) of the air supply passage 3 is communicated with the outdoor 18 by a second air supply duct 14, and the outflow end (left end in the figure) of the exhaust passage 2 is connected to the second end.
The exhaust duct 15 communicates with the outdoor 18. A humidifier 16 is provided in the air supply passage 3 downstream of the sensible heat exchanger 4.

In the humidity control ventilation unit constructed and installed as described above, the outdoor air supply unit 9 is operated by the operation of the air supply fan 9.
The supply air SA sucked from 8 passes through the heat absorption side of the Peltier element 5 in the supply path 3. At this time, the air supply S
A is cooled and dehumidified. And dehumidified air supply SA
Performs heat exchange with the exhaust EA discharged from the room in the sensible heat exchanger 4. The supply air SA having a temperature substantially equal to the room temperature due to this heat exchange is supplied to the room 11 through the first supply duct 12. The drain generated on the heat absorption side of the Peltier element 5 when dehumidified is received by the drain pan 7. On the other hand, the exhaust EA drawn from the room 11 by the operation of the exhaust fan 8 flows into the exhaust path 2 through the first exhaust duct 13. And the exhaust EA flowing into the exhaust path 2
After the heat exchange with the cooled supply air SA in the sensible heat exchanger 4, the heat passes through the heat radiation side of the Peltier element 5. At this time, the exhaust EA is heated and discharged to the outdoor 18 together with the heat released from the Peltier element 5. The humidifier 16 is used when indoor humidification is required in winter or the like.

In the humidity control and ventilation unit, heat is absorbed from the air supply SA by the Peltier element 5, and the heat is applied to the exhaust EA and discharged to the outdoor 18. That is, the Peltier element 5
Is used to construct the heat pump. Therefore, the conventional refrigerant circuit used for forming the heat pump becomes unnecessary. If a refrigerant circuit is unnecessary, there is no need to provide an outdoor unit dedicated to dehumidification, so there is no need to secure an installation space for the outdoor unit at the time of installation, and there is no need for piping work. Therefore, the installation workability can be remarkably improved. In addition, since the structure does not use the refrigerant circuit, the refrigerant passage noise as in the related art is eliminated, so that the noise can be improved. In addition, since an outdoor unit having a compressor or the like is not required, the configuration can be simplified to reduce costs and reduce the size.

Further, since the amount of heat released from the Peltier element 5 is applied to the exhaust EA and is discharged to the outdoor 18, it is not necessary to provide a special heat radiating mechanism, and the configuration can be further simplified. Can be. The partition plate 6 separates the air supply path 3 and the exhaust path 2 from each other, and the partition plate 6 mounts the Peltier element 5. Therefore, the configuration can be further simplified. Moreover, in the conventional humidity control ventilation unit, the evaporator 45 is used.
Since these are relatively large parts, it was necessary to secure some space in the air supply passage 43. On the other hand, in the humidity control ventilation unit, since the Peltier element 5 which is a relatively small component is used and attached to the partition plate 6, the exhaust path 3 can be made compact, and thus the exhaust path can be made compact. The flow resistance to the EA is reduced, and the pumping efficiency by the exhaust fan 8 can be improved, and the quietness can be improved.

The Peltier element 5 has fins 17 projecting from the air supply passage 3 and the exhaust passage 2 on both the heat absorption side and the heat radiation side. Therefore, the heat absorption efficiency and the heat radiation efficiency can be improved, and energy can be saved by reducing power consumption. Further, the Peltier element 5 is provided such that the heat radiation side is on the upper side and the heat absorption side is on the lower side. Therefore, the heat rising from the heat radiation side can be efficiently given to the exhaust EA, and the cold heat falling from the heat absorption side can be efficiently given to the air supply SA. Therefore, the heat absorption efficiency and the heat radiation efficiency are further improved. In addition, since the heat absorbing side is located on the lower side, it is easy to treat drain generated by dehumidification.

Although the specific embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and can be implemented with various modifications within the scope of the present invention. For example, in the above description, the exhaust fan 8 and the air supply fan 9 are provided in the exhaust path 2 and the air supply path 3, respectively. However, if the exhaust EA and the supply air SA can flow through the exhaust path 2 or the supply path 3, respectively, the exhaust fan 8 and the supply fan 9
Or at a location other than the air supply path 3. In the above description, the fins 17 are provided on the Peltier element 5 to improve the heat absorption efficiency and the heat radiation efficiency. However, for example, a bar-shaped member is protruded, and this member is protruded into the air supply passage 3 and the exhaust passage 2. Is also good. Further, in the above, the humidifier 16 is provided, but if the humidification is not performed, such a humidifier 16 is used.
May not be provided. The sensible heat exchanger 4 may not be used by reheating the supply air SA cooled by the Peltier element 5 by any heating means.

[0026]

As described above, in the humidity control and ventilation unit of the first aspect, it is possible to eliminate the need for a conventional outdoor unit dedicated to dehumidification. Therefore, there is no need to secure an installation space for the outdoor unit at the time of installation, and there is no need for piping work. Therefore, the installation workability can be improved. Further, since the structure does not use the refrigerant circuit, the refrigerant passage noise as in the related art is eliminated, thereby making it possible to improve the quietness. Further, since an outdoor unit having a compressor or the like is not required, the configuration of the device can be simplified, and thereby the cost can be reduced and the size of the device can be reduced.

In the humidity control and ventilation unit according to the second aspect, a special mechanism for discharging heat released from the heat radiation side of the Peltier element can be omitted, so that the configuration is further simplified. It becomes possible.

Further, in the humidity control ventilation unit of the third aspect,
Since the partitioning member performs both the partitioning between the air supply passage and the exhaust passage and the attachment of the Peltier element, the configuration can be further simplified.

According to the humidity control and ventilation unit of the fourth aspect, the heat rising from the heat radiation side can be efficiently applied to the exhaust gas, and the cool heat falling from the heat absorption side can be efficiently applied to the air supply. Therefore, it becomes possible to improve heat absorption efficiency and heat radiation efficiency, reduce power consumption, and promote energy saving.

In the humidity control and ventilation unit according to the fifth aspect, since the heat absorption efficiency and the heat radiation efficiency of the Peltier element can be further improved, it is possible to further promote energy saving.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a humidity control ventilation unit according to an embodiment of the present invention.

FIG. 2 is a schematic sectional view showing a house in which the humidity control and ventilation unit is installed.

FIG. 3 is an enlarged perspective view showing a Peltier device.

FIG. 4 is a schematic sectional view showing a conventional humidity control ventilation unit.

[Explanation of symbols]

 Reference Signs List 2 exhaust path 3 supply path 4 sensible heat exchanger 5 Peltier element 6 partition plate 11 indoor 17 fin 18 outdoor SA supply FA exhaust

Claims (5)

[Claims] 1. An air supply passage (3) through which air (SA) supplied from the outdoor (18) to the room (11) flows, and exhaust air (EA) discharged from the room (11) to the outdoor (18). ) And an air supply cooler arranged in the air supply path (3) in the humidity control ventilation unit, the heat absorption side of the Peltier element (5) is cooled by the air supply cooling. Humidity control ventilation unit characterized by functioning as a vessel. 2. The humidity control and ventilation unit according to claim 1, wherein a heat radiation side of the Peltier element is arranged in the exhaust path. 3. The device according to claim 2, wherein the Peltier element is mounted on a partition member that partitions between the air supply path and the exhaust path. Humidity control ventilation unit. 4. An exhaust path (2) is formed above the partition member (6), and an air supply path (3) is formed below the partition member (6). )
The humidity control ventilating unit according to claim 3, wherein the heat-dissipating side is on the upper side and the heat-absorbing side is on the lower side. 5. A projection (17) projecting into an air supply passage (3) or an exhaust passage (2) on the heat absorption side or the heat radiation side of the Peltier element (5), respectively. The humidity control and ventilation unit according to claim 1.