JP6931766B2 - Cooling system - Google Patents

Description

The present invention relates to a cooling device for a heating element storage box containing a heating element and the like.

Examples of the heating element include a power conditioner and the like.

A power conditioner is a substation facility used in a photovoltaic power generation system or the like to convert a direct current into an alternating current.

Since the power conditioner is housed inside a heating element storage box such as a container, it is necessary to cool the inside of the container or the like.

To reduce power consumption for cooling, a substation equipped with an air conditioner that cools the internal space of the container, a ventilation fan that ventilates the internal space of the container, and a control device that selects the use of the air conditioner and the ventilation fan is proposed. (See, for example, Patent Document 1).

Further, a cooling device as a heat exchanger that can further reduce power consumption by using outside air instead of a ventilation fan has also been proposed (see, for example, Patent Document 2).

Japanese Unexamined Patent Publication No. 2014-22878 Japanese Unexamined Patent Publication No. 2006-336895

Further, a cooling device having a higher cooling efficiency is required, but in the conventional cooling device, the air warmed by the heating element does not flow in a well-balanced manner, which may hinder the improvement of the cooling efficiency.

The present invention solves such a problem, and an object of the present invention is to provide a cooling device having improved cooling efficiency by allowing air warmed by a heating element to flow in a well-balanced manner.

Then, in order to achieve this object, the cooling device according to one aspect of the present invention has a chamber member, a casing, and a heat exchanger to cool the inside air which is the air inside the heating element storage box. In the cooling device, the chamber member is provided on the upper surface of the heating element storage box and has an inside air passage hole, and the casing is provided on the upper surface of the chamber member and has an inside air suction port and an inside air outlet. It has an outside air suction port and an outside air outlet, the heat exchanger is provided inside the casing, the casing has an inside air section and an outside air section inside, and the inside air passage hole is a first. It has an inside air passage hole and a second inside air passage hole, and the first inside air passage hole and the second inside air passage hole are sequentially provided along the airflow flowing through the chamber air passage inside the chamber member, and the chamber member. It is characterized in that a first protruding portion protruding into the chamber air passage is provided between the first inside air passing hole and the second inside air passing hole inside the chamber. It achieves the purpose.

According to the present invention, a cooling device having improved cooling efficiency can be obtained by allowing the air warmed by the heating element to flow in a well-balanced manner.

Perspective view of a storage room in which the heating element storage box and the cooling device of the first embodiment of the present invention are installed. Perspective view of the heating element storage box and cooling device An exploded perspective view of the heating element storage box and cooling device (A) Left side internal perspective perspective view of the cooling device, (b) Right side internal perspective perspective view of the cooling device. FIG. 4 (b) is a block diagram showing a cross section taken along the line AA'. Configuration diagram of the evaporator (condenser) Configuration diagram showing the flow of the inside air and the flow of the outside air Perspective view of the chamber member Conceptual diagram showing a BB'cross section of FIG. (A) Left side internal perspective perspective view of the cooling device according to the second embodiment of the present invention, (b) Right side internal perspective perspective view of the cooling device according to the second embodiment of the present invention. A block diagram showing a CC'cross section of FIG. 10 (b). An exploded perspective view of the same heat exchanger Perspective view of the same heat exchanger Configuration diagram showing the flow of the inside air and the flow of the outside air

Hereinafter, examples of the present invention will be described with reference to the drawings.

(Embodiment 1)
1 to 4 show an embodiment of the cooling device.

As shown in FIG. 1, the cooling device 1 is installed above the heating element storage box 2. The cooling device 1 and the heating element storage box 2 are installed inside the storage chamber 3. A heating element (not shown) such as a power conditioner is stored in the heating element storage box 2.

The inside of the storage room 3 is an airtight space surrounded by a floor surface, a ceiling surface, and a wall surface. The air conditioner 6 is composed of an indoor unit 4 installed inside the storage chamber 3 and an outdoor unit 5 installed outside the storage chamber 3.

The rear surface of the heating element storage box 2 is close to the inner wall surface of the storage chamber 3 substantially in parallel.

An indoor air suction port 7 is opened on the front surface of the heating element storage box 2, and the air inside the storage chamber 3 is sucked into the heating element storage box 2.

As shown in FIGS. 2 and 3, a plurality of casings 11 of the cooling device 1 are placed on the upper surface of the heating element storage box 2 via the chamber member 8 (three on the left side and one on the right side in this embodiment, for a total of four). ), It is provided so as to protrude from the front surface of the heating element storage box 2. The chamber member 8 is provided with openings (three on the left side and one on the right side, a total of four) as the inside air passage holes 9 according to the number of casings 11.

4A and 4B show an internal perspective perspective view of the cooling device 1 from diagonally above right when viewed from the inside air compartment side, and from diagonally above left when viewed from the outside air compartment side.

As shown in FIG. 4, the cooling device 1 has a heat exchanger 24, an inside air blower 18, and an outside air blower 19 inside the casing 11.

The inside of the casing 11 constitutes an inside air section 16 on the left side of FIG. 4A and an outside air section 17 on the right side of FIG. 4A, which are divided back and forth by an inner / outer partition plate 15.

When the inside air blower 18 is provided, the inside air blower chamber 18b partitioned by the inside air blower partition plate 18a may be configured on the front surface side of the casing 11.

When the outside air blower 19 is provided, the outside air blower chamber 19d partitioned by the outside air blower partition plate 19a including the first plate portion 19b and the second plate portion 19c may be configured on the rear surface side of the casing 11. In this case, the outside air blower partition plate 19a becomes a part of the casing 11.

Two outside air blowers 19 may be provided in the outside air blower chamber 19d, and the air passages of the two outside air blowers 19 may be formed by the outside air air passage partition plate 28.

An outside air suction port 12 is provided on the upper side of the rear surface of the casing 11, and an outside air outlet 13 is provided on the lower side of the rear surface of the casing 11 of the outside air blower chamber 19d.

The inside air suction port 30 is opened in a portion of the lower surface of the casing 11 corresponding to the lower part of the evaporator 21.

An inside air outlet 14 is opened on the lower surface of the casing 11 protruding from the front surface of the heating element storage box 2.

The air inside the cooling device 1 may be blown downward from the inside air outlet 14 along the front surface of the heating element storage box 2.

In the outside air compartment 17, an outside air air passage forming plate 29 for forming an air passage from the outside air suction port 12 to the condenser 20 is provided so as to cover the side surface of the condenser 20, and two units are provided in the outside air blower chamber 19d. An outside air air passage partition plate 28 that divides each air passage of the outside air blower 19 may be provided.

FIG. 5 shows a configuration diagram showing a cross section of the AA' portion of FIG. 4 (b).

As shown in FIG. 5, an inner / outer partition plate 15 is provided inside the casing 11. The inner / outer partition plate 15 divides the inner air section 16 on the front side and the outer air section 17 on the rear side.

A condenser 20 is installed inside the outside air compartment 17, and an evaporator 21 is installed inside the inside air compartment 16. The condenser 20 and the evaporator 21 are connected by a refrigerant trachea 22 and a refrigerant liquid pipe 23 to form a heat exchanger 24.

A refrigerant cycle, that is, a thermosiphon is formed by enclosing the refrigerant inside the condenser 20, the evaporator 21, the refrigerant air pipe 22, and the refrigerant liquid pipe 23. The refrigerant air pipe 22 and the refrigerant liquid pipe 23 penetrate the inner / outer partition plate 15, and the independence of the inner air compartment 16 and the outer air compartment 17 is ensured by sealing the penetrating portion with a gasket or the like (not shown). There is.

The condenser 20 and the evaporator 21 are each composed of three rows (not shown), and the refrigerant air pipe 22 and the refrigerant liquid pipe 23 connect the top row, the center row, and the bottom row of the condenser 20 and the evaporator 21 to each other. doing.

FIG. 6 shows the configuration of the evaporator 21 (condenser 20).

The evaporator 21 or condenser 20 arranges a plurality of tubes 26 at regular intervals between two headers 25, inserts corrugated fins 27 between the tubes 26, and makes a large number of contacts between the tubes 26 and the fins 27. It is constructed by welding the parts. By welding these many contact portions, the tube 26 and the fin 27 have good heat transfer properties.

In the above configuration, the cooling action of the cooling device 1 will be described with reference to FIG. 7.

When a heating element such as a power conditioner operates, it generates heat. The air heated by the heat generation flows into the chamber member 8 from the internal airflow outlet 10 by the storage box blower 71 or the internal air blower 18. When the storage box blower 71 is provided, the storage box blower 71 is connected to the inner airflow outlet 10 of the heating element storage box 2.

The air that spreads horizontally and is rectified in the chamber member 8 is dispersed and flows into the inside air compartment 16 of each casing 11 from the inside air passing hole 9.

The inflowing air is first cooled by passing through the evaporator 21 in the inside air compartment 16. The cooled air passes through the inside air compartment 16 and is sucked into the inside air blower 18 in the inside air blower chamber 18b, turns 90 degrees, and is blown out in the vertical direction. Here, the inside air blower chamber 18b serves as a chamber, and the rectified air is projected from the front surface of the heating element storage box 2 and is along the front surface of the heating element storage box 2 from the inside air outlet 14 opened on the lower surface of the casing 11. It will blow downward like this. The flow of this shyness is indicated by the arrow in FIG.

At this time, since the indoor air suction port 7 of the heating element storage box 2 is provided below the front surface of the heating element storage box 2, it is blown downward from the inside air outlet 14 along the front surface of the heating element storage box 2. Further, the cooled air can be supplied to the indoor air suction port 7 by the shortest route.

That is, even if the air temperature in the storage chamber 3 is a little high, the air cooled by the cooling device 1 can be supplied to the heating element storage box 2 almost directly, so that the set temperature of the air conditioner 6 can be raised and an energy saving effect is created. can.

Next, as shown in FIG. 7, outside air is sucked into the outside air suction port 12 by the action of the outside air blower 19 in the outside air section 17. The sucked outside air passes through the condenser 20 and is heated as shown by the arrow shown in FIG. The heated outside air is sucked into the outside air blower 19, turns 90 degrees, is blown out in the vertical direction, and is discharged to the outside from the outside air outlet 13 through the wall surface of the storage chamber 3.

Further, since the air dispersed and flowing into the inside air compartment 16 passes between the corrugated fins 27 of the evaporator 21 (condenser 20) (substantially triangular space in FIG. 6), it is compared with the laminated heat exchange elements. Since the pressure loss is low, the internal air blower 18 provided in the internal air blower chamber 18b has a low output and can create a further energy saving effect than the conventional blower. The same applies to the outside air blower 19 provided in the outside air blower chamber 19d.

Inside the evaporator 21, the refrigerant evaporates by absorbing heat from the inflowing air, and flows into the condenser 20 through the refrigerant trachea 22. The air cooled by the endothermic action accompanying the evaporation of the refrigerant in the evaporator 21 is blown out from the inside air outlet 14 provided on the lower surface of the casing 11 toward the indoor air suction port 7 of the heating element storage box 2. The heating element can be cooled efficiently.

In the condenser 20, the refrigerant is condensed by heat radiation to the outside air, and flows into the evaporator 21 again through the refrigerant liquid pipe 23. The outside air that has been heated by heat exchange with the refrigerant in the condenser 20 is discharged to the outside from the outside air outlet 13.

That is, the heat exchanger 24 exhibits an action in which the refrigerant evaporates by absorbing heat from the inside air of the heating element storage box 2 and condenses by radiating heat to the outdoor outside air, and repeats the gas phase state and the liquid phase state. This is a thermosiphon that transfers heat by circulating the changing refrigerant inside the heat exchanger 24 due to the difference in density.

With this configuration, the cooling device 1 can be installed in the limited space between the top surface of the heating element storage box 2 and the top surface of the storage chamber 3.

Next, the feature portion of the present embodiment will be described with reference to FIGS. 8 to 9.

FIG. 8 is a perspective view of the chamber member 8 as viewed from the heating element storage box 2 side (lower side).

As shown in FIG. 8, a first protruding portion 81a is provided between the first inside air passage hole 9a and the second inside air passage hole 9b inside the chamber member 8.

Further, inside the chamber member 8, a second protruding portion 81b is provided between the second inside air passage hole 9b and the third inside air passage hole 9c.

The first protruding portion 81a and the second protruding portion 81b have a plate shape.

A reinforcing portion for reinforcing the chamber member 8 may be provided on the inner upper surface of the chamber member 8.

A cover is provided above the storage box blower 71. The storage box blower 71 may be provided inside the heating element storage box 2.

FIG. 9 is a conceptual diagram showing a cross section of the BB' portion of FIG.

As shown in FIG. 9, by the storage box blower 71 or the inside air blower 18 (FIG. 7), a part of the inside air, which is the air inside the heating element storage box 2, is passed through the inside airflow outlet 10 to the chamber member 8. It flows inside. The inside air flowing into the chamber member 8 is bent in the horizontal direction along the chamber air passage 84 inside the chamber member 8, and the inside air passage holes 9 (first inside air passage hole 9a, second inside air passage hole 9b, first 3 Through the inside air passage hole 9c, etc.), it is dispersed and flows into the casing 11. The first inside air passage hole 9a, the second inside air passage hole 9b, and the third inside air passage hole 9c are provided in order along the air flow flowing through the chamber air passage 84.

The first protrusion 81a bends a part of the direction of the airflow flowing through the chamber air passage 84, reduces the amount of air flowing through the second inside air passage hole 9b, and reduces the amount of air flowing through the first inside air passage hole 9a. Can be increased. This increased airflow is represented by a portion of the airflow 85a.

As described above, in the present embodiment, by providing the first protruding portion 81a, it is possible to prevent the amount of air flowing through the second inside air passing hole 9b from becoming too large, and the first inside air passing hole 9a and the second inside air are prevented from becoming too large. The balance of the amount of air flowing through the passage hole 9b can be improved. As a result, the air flowing into the inside air compartment 16 from the first inside air passage hole 9a and the second inside air passage hole 9b hits the evaporator 21 in a well-balanced manner, so that the cooling efficiency of the cooling device 1 can be improved.

Further, inside the chamber member 8, a second protruding portion 81b protruding into the chamber air passage 84 may be provided between the second internal air passing hole 9b and the third internal air passing hole 9c. Then, in the direction perpendicular to the direction of the chamber air passage 84, the second protruding portion 81b may be configured to protrude longer than the first protruding portion 81a.

When the first protrusion 81a and the second protrusion 81b are not present, the third inner air passage hole 9a, the second inner air passage hole 9b, and the third inner air passage hole 9c are located on the most downstream side. The amount of air flowing through 9c tends to be the largest. By further providing a second protruding portion 81b longer than the first protruding portion 81a in addition to the first protruding portion 81a, the amount of air flowing through the third internal air passing hole 9c can be effectively reduced, and the second internal air can be effectively reduced. The amount of air flowing through the passage hole 9b can be increased. This increased airflow is represented by part 85b of the airflow. By further providing the second protruding portion 81b, it is possible to prevent the amount of air flowing through the third inside air passing hole 9c from becoming too large, and the first inside air passing hole 9a, the second inside air passing hole 9b, and the third inside air passing through. The balance of the amount of air flowing through the hole 9c can be improved. As a result, the air flowing into the inside air compartment 16 from the first inside air passage hole 9a, the second inside air passage hole 9b, and the third inside air passage hole 9c hits the evaporator 21 in a well-balanced manner, so that the cooling efficiency of the cooling device 1 is increased. Can be further improved.

Hereinafter, the first embodiment will be supplemented.

The cooling device 1 according to one aspect of the present invention has a chamber member 8, a casing 11, a heat exchanger 24, and an inner / outer partition plate 15, and cools the inside air which is the air inside the heating element storage box 2. The cooling device 1 is provided with the chamber member 8 on the upper surface of the heat exchanger storage box 2 and has an inside air passage hole 9, and the casing 11 is provided on the upper surface of the chamber member 8 and has an inside air suction port 30. It has an inside air outlet 14, an outside air suction port 12, and an outside air outlet 13, the heat exchanger 24 and the inside / outside partition plate 15 are provided inside the casing 11, and the heat exchanger 24 evaporates with the condenser 20. The inner / outer partition plate 15 including the vessel 21 forms an inside air section 16 and an outside air section 17 that are independent of each other inside the casing 11, and an evaporator 21 is provided in the inside air section 16 to provide a part of the inside air. The inside air passage hole 9, the inside air suction port 30, the evaporator 21, and the inside air outlet 14 circulate in this order from the chamber air passage 84 inside the chamber member 8, and a condenser 20 is provided in the outside air compartment 17, and a part of the outside air is provided. It flows from the outside air suction port 12 to the condenser 20 and the outside air outlet 13 in this order, and the inside air passage hole 9 has a first inside air passage hole 9a and a second inside air passage hole 9b, and the first inside air passage hole 9a and the second inside air. The passage holes 9b are sequentially provided along the airflow flowing through the chamber air passage 84, and project into the chamber air passage 84 between the first inside air passage hole 9a and the second inside air passage hole 9b inside the chamber member 8. It has a configuration in which the first protruding portion 81a is provided.

According to this configuration, by providing the first protrusion 81a, the amount of air flowing through the second inside air passage hole 9b can be reduced, and the amount of air flowing through the first inside air passage hole 9a can be increased. That is, it is possible to prevent the amount of air flowing through the second inside air passage hole 9b from becoming too large, and improve the balance of the amount of air flowing through the first inside air passage hole 9a and the second inside air passage hole 9b. As a result, the air flowing into the inside air compartment 16 from the first inside air passage hole 9a and the second inside air passage hole 9b hits the evaporator 21 in a well-balanced manner, so that the cooling efficiency of the cooling device 1 can be improved.

Further, the inside air passage hole 9 has a third inside air passage hole 9c in addition to the first inside air passage hole 9a and the second inside air passage hole 9b, and has the first inside air passage hole 9a, the second inside air passage hole 9b, and the inside air passage hole 9b. The third inside air passage holes 9c are provided in order along the chamber air passage 84, and project into the chamber air passage 84 between the second inside air passage hole 9b and the third inside air passage hole 9c inside the chamber member 8. The second protruding portion 81b may be provided so that the second protruding portion 81b protrudes longer than the first protruding portion 81a in a direction perpendicular to the direction of the chamber air passage 84.

By further providing a second protruding portion 81b longer than the first protruding portion 81a in addition to the first protruding portion 81a, the amount of air flowing through the third internal air passing hole 9c can be effectively reduced, and the second internal air can be effectively reduced. The amount of air flowing through the passage hole 9b can be increased. That is, it is possible to prevent the amount of air flowing through the third inside air passage hole 9c from becoming too large, and balance the amount of air flowing through the first inside air passage hole 9a, the second inside air passage hole 9b, and the third inside air passage hole 9c. Can be improved. As a result, the air flowing into the inside air compartment 16 from the first inside air passage hole 9a, the second inside air passage hole 9b, and the third inside air passage hole 9c hits the evaporator 21 in a well-balanced manner, so that the cooling efficiency of the cooling device 1 is increased. Can be further improved.

Further, the chamber member 8 has a shape longer in the horizontal direction than the vertical direction, the direction of the chamber air passage 84 has a horizontal component, and the first protruding portion 81a projects downward from the inner upper surface of the chamber member 8. It may be configured to be.

A part of the inside air, which is the air inside the heating element storage box 2, flows through the chamber air passage 84 inside the chamber member 8 provided on the upper surface of the heating element storage box 2. Since the direction of the chamber air passage 84 has a horizontal component, when a part of the inside air flows from the lower heating element storage box 2 to the upper chamber air passage 84, the direction is bent from the vertical direction to the horizontal direction. Such an inside air flow increases the wind speed in the upper region than the wind speed in the lower region of the chamber air passage 84. By projecting the first projecting portion 81a downward from the inner upper surface of the chamber member, a part of the wind in the upper region of the chamber air passage 84 having a high wind speed can be effectively blocked. As a result, the balance of the amount of air flowing through the first inside air passage hole 9a and the second inside air passage hole 9b can be effectively improved.

Further, the chamber member 8 has a shape longer in the horizontal direction than the vertical direction, the direction of the chamber air passage 84 has a horizontal component, and the second protruding portion 81b projects downward from the inner upper surface of the chamber member 8. It may be configured to be present.

According to this configuration, the second projecting portion 81b projects downward from the inner upper surface of the chamber member 8, so that a part of the wind in the upper region of the chamber air passage 84 having a high wind speed can be effectively blocked. As a result, the balance of the amount of air flowing through the first inside air passage hole 9a, the second inside air passage hole 9b, and the third inside air passage hole 9c can be effectively improved.

Further, inside the chamber member 8, a third protrusion (not shown) that protrudes into the chamber air passage 84 is provided, and the first protrusion 81a, the second protrusion 81b, and the third protrusion are the chamber member 8. The third protrusion may be provided in order along the inner chamber air passage 84, and the third protrusion may be longer than the second protrusion 81b in the direction perpendicular to the direction of the chamber air passage 84. ..

According to this configuration, it is possible to improve the balance of the air flowing through each of the inside air passage holes 9 in response to the case where there are more inside air passage holes 9.

Further, between the first protrusion 81a and the second inside air passage hole 9b, a reinforcing portion 82 for reinforcing the chamber member 8 is provided on the inner upper surface of the chamber member 8 and is perpendicular to the direction of the chamber air passage 84. In any direction, the first projecting portion 81a may be configured to project longer than the reinforcing portion 82.

According to this configuration, the air flow in the chamber air passage 84 can be smoothly guided to the first inside air passage hole 9a without being unnecessarily blocked. As a result, the pressure loss of air in the chamber air passage 84 can be reduced, and the cooling efficiency of the cooling device 1 can be improved. In addition, unlike this configuration, if the reinforcing portion 82 is provided on the upstream side instead of the downstream side of the first protruding portion 81a, or if the first protruding portion 81a protrudes shorter than the reinforcing portion 82, the reinforcing portion 82 Unnecessarily blocks the flow of air in the chamber air passage 84, which increases the pressure loss of air in the chamber air passage 84. However, if the influence of the pressure loss is not large, the reinforcing portion 82 may be provided on the upstream side instead of the downstream side of the first protruding portion 81a, or the first protruding portion 81a may protrude shorter than the reinforcing portion 82. You may. The same applies to the reinforcing portion 82 provided in the vicinity of the second protruding portion 81b.

Further, the heating element storage box 2 may be cooled in the storage chamber 3 for storing the heating element storage box 2.

According to this configuration, the heating element storage box 2 can be cooled even when the heating element storage box 2 is stored in the storage chamber 3. The heating element storage box 2 does not have to be stored in the storage chamber 3. In this case, the air blown out from the inside air outlet 14 directly returns to the inside of the heating element storage box 2 and circulates inside the heating element storage box 2.

(Embodiment 2)
10 to 14, the same components as those in FIGS. 1 to 13 are designated by the same reference numerals, and detailed description thereof will be omitted.

FIG. 10A is a perspective view inside the left side surface of the cooling device according to the second embodiment of the present invention, and FIG. 10B is a perspective view inside the right side surface of the cooling device according to the second embodiment of the present invention. It is a figure.

As shown in FIGS. 10A and 10B, inside the casing 11, the inside air section 16 is provided between the heat exchanger 24 and the inside air blower 18, and the outside air is provided between the heat exchanger 24 and the outside air blower 19. It has a compartment 17.

The inside air suction port 30 is opened in a portion of the lower surface of the casing 11 corresponding to the lower part of the heat exchanger 24.

FIG. 11 is a configuration diagram showing a CC'cross section of FIG. 10 (b).

As shown in FIG. 11, a heat exchanger 24 is provided inside the casing 11. The heat exchanger 24 has an outer airflow inlet 51, an outer airflow outlet 52, an inner airflow inlet 53, and an inner airflow outlet 54.

Further, the heat exchanger 24 is provided so as to be tilted so that the side of the casing 11 near the outside air suction port 12 is lower than the side of the casing 11 near the inside air outlet 14.

FIG. 12 is an exploded perspective view of the heat exchanger according to the second embodiment of the present invention.

As shown in FIG. 12, the heat exchanger 24 has a rectangular, synthetic resin second plate 56 on the surface of the rectangular, synthetic resin first plate 55, and a second plate. A third plate 57 made of synthetic resin is placed on the surface of the body 56, and a fourth plate 58 made of synthetic resin is placed on the surface of the third plate 57 ((hereinafter, similarly, a plurality of plates are similarly used). Are used.) Are polymerized as shown in FIG. 13 in a state where they are separated from each other at predetermined intervals.

Although not shown, on the surfaces of the first plate 55, the second plate 56, the third plate 57, and the fourth plate 58, a plurality of rectifying walls for partitioning the surfaces in a lane shape are formed, respectively. It is provided. The first plate body 55, the second plate body 56, the third plate body 57, and the fourth plate body 58 have a rectangular shape elongated in the left-right direction. On the surface of the fourth plate body 58, the rectifying wall is curved and extended in the middle from one end of the plate body serving as the outside airflow inlet 51 toward the other end side serving as the outside airflow outlet 52. On the surface of the third plate 57, the rectifying wall is curved and extended in the middle from one end of the plate serving as the internal airflow inlet 53 toward the other end side serving as the internal airflow outlet 54. By stacking the plates having such a rectifying wall, a plurality of substantially L-shaped ventilation lanes can be formed on the plates. According to such a heat exchanger 24, the outside air passage that communicates the outside airflow inlet 51 and the outside airflow outlet 52 and the inside air passage that communicates the inside airflow inlet 53 and the inside airflow outlet 54 form a plate body between them. It is possible to obtain configurations that are alternately adjacent to each other. In FIG. 12, the outside air passage is indicated by a broken line arrow, and the inside air passage is indicated by a solid arrow.

With such a configuration, in the heat exchanger 24, since the inside air passage and the outside air passage are alternately adjacent to each other via the plate body inside the heat exchanger 24, the inside air and the outside air do not come into direct contact with each other. Heat exchange can be performed between the inside air and the outside air via the plate body. That is, the heat exchanger 24 transfers the heat of the inside air of the heating element storage box to the inside air of the heating element storage box in a state where there is no air flow between the inside air of the heating element storage box and the outdoor outside air taken into the cooling device. It is a laminated heat exchanger (heat exchange element) that has the effect of dissipating heat to the outside outdoor air.

FIG. 13 is a perspective view of the heat exchanger according to the second embodiment of the present invention.

As shown in FIG. 13, an outside airflow inlet 51 is formed on the upper surface side of the heat exchanger 24 in which a plurality of plates are polymerized, and the outside air sucked into the casing 11 via the outside air suction port 12 is formed. Flows into the heat exchanger 24 from the outside airflow inlet 51. The air that has flowed into the heat exchanger 24 flows out into the outside air compartment 17 from the outside airflow outlet 52 shown on the lower right side of FIG. The outside airflow outlet 52 communicates with the outside air outlet 13 via the outside air section 17 and the outside air blower 19.

As shown in FIG. 13, the projecting piece 42 may be provided at the boundary between the upper surface of the heat exchanger 24 and the peripheral edge of the outside airflow inlet 51. The projecting piece 42 is a member on the upper surface of the heat exchanger 24 in which one end side of a long side of a plate-shaped member long in the stacking direction of the plate body is bent toward the upper side of the casing 11.

FIG. 14 is a block diagram showing the flow of the inside air and the flow of the outside air of the cooling device according to the second embodiment of the present invention.

The cooling action of the cooling device 1 in the configuration of the second embodiment will be described with reference to FIG.

When a heating element such as a power conditioner (not shown) operates inside the heating element storage box 2, heat is generated. The air heated by the heat generated flows into the chamber member 8 from the inner airflow outlet 10 of the heating element storage box 2 by the action of the storage box blower 71 or the inside air blower 18. When the storage box blower 71 is provided, the storage box blower 71 is connected to the inner airflow outlet 10 of the heating element storage box 2.

The air that spreads horizontally in the chamber member 8 and is rectified flows into the heat exchanger 24 of the casing 11 from the inside air passage hole guide 41 inserted into the inside air passage hole 9.

The inside air flowing into the heat exchanger 24 is cooled by the outside air having a lower temperature than the inside air by passing through the inside air passage adjacent to the outside air passage. The cooled inside air passes through the inside air section 16, is sucked into the inside air blower 18, turns 90 degrees, and is blown out vertically downward. The flow of this shyness is indicated by the thick solid arrow in FIG.

At this time, since the indoor air suction port 7 of the heating element storage box 2 is provided below the front surface of the heating element storage box 2, it is blown downward from the inside air outlet 14 along the front surface of the heating element storage box 2. Further, the cooled air can be supplied to the indoor air suction port 7 by the shortest route.

That is, even if the air temperature in the storage chamber 3 is a little high, the air cooled by the cooling device 1 can be supplied to the heating element storage box 2 almost directly, so that the set temperature of the air conditioner 6 can be raised and an energy saving effect is created. can.

Next, as shown in FIG. 14, the outside air is sucked into the outside air suction port 12 by the action of the outside air blower 19. The sucked outside air passes through the heat exchanger 24 as shown by the thick broken line arrow shown in FIG. 14, and is heated by the inside air having a higher temperature than the outside air. The heated outside air is sucked into the outside air blower 19, turns 90 degrees, is blown out vertically downward, and is discharged to the outside of the storage chamber 3 from the outside air outlet 13.

That is, in the heat exchanger 24, the inside air passage and the outside air passage are alternately adjacent to each other via the plate body inside the heat exchanger 24, so that heat is exchanged between the inside air and the outside air, and the heat exchanger is stored. It is a laminated type sensible heat exchanger that has the effect of dissipating the heat of the inside air of the box to the outside outside air of the storage room.

The heat exchanger 24 is provided so as to be inclined so that the side of the casing 11 near the outside air suction port 12 is lowered, that is, the downstream side of the outside air air passage is provided so as to be inclined downward from the horizontal direction toward the downstream side. However, it may be provided so as not to be tilted.

The shape of the first protruding portion 81a or the second protruding portion 81b is a plate shape having a component perpendicular to the direction of the air flow flowing through the chamber air passage 84, but the shape is not limited to such a shape, and the air flow is not limited to such a shape. Other shapes may be used as long as they hinder the shape. Further, the first protruding portion 81a or the second protruding portion 81b may be fixed not only to the inner upper surface of the chamber member 8 but also to the inner side surface of the chamber member 8. The first protruding portion 81a or the second protruding portion 81b may be integrated with the reinforcing portion 82 as a partition plate in the chamber.

Further, the outside air is the air outside the heating element storage box 2. However, when the heating element storage box 2 is stored in the storage chamber 3, the outside air means the air outside the storage chamber 3.

Further, the shape of the casing 11 does not have to protrude from the front surface of the heating element storage box 2, and may be another shape such as a normal rectangular parallelepiped.

Further, the configurations described in the first and second embodiments show one example, which includes a storage chamber 3, an air conditioner 6, an inside air blower 18, an inside air blower partition plate 18a, an inside air blower chamber 18b, and an outside air. The blower partition plate 19a, the outside air blower chamber 19d, the storage box blower 71, the third inside air passage hole 9c, the second protruding portion 81b, the reinforcing portion 82, the cover 83, and the like are not essential configurations.

Further, since the inventions of the first embodiment and the second embodiment relate to the cooling device 1 for cooling the heating element storage box 2, the heating element storage box 2 itself is not included in the configuration of the cooling device 1. May be good.

Further, in the cooling device according to the present invention, the heat exchanger includes, for example, a thermosiphon type or a heat exchange element.

Although the cooling device according to the present invention has been described above based on the embodiment, the present invention is not limited to the embodiment. As long as the gist of the present invention is not deviated, various modifications that can be conceived by those skilled in the art are applied to the present embodiment, and a form constructed by combining components in different embodiments is also included in the scope of the present invention. ..

The cooling device according to the present invention is useful as a cooling device or the like with improved cooling efficiency.

1 Cooling device 2 Heat exchanger storage box 3 Storage room 4 Indoor unit 5 Outdoor unit 6 Air conditioner 7 Indoor air suction port 8 Chamber member 9 Inside air passage hole 9a 1st inside air passage hole 9b 2nd inside air passage hole 9c 3rd inside air passage hole 10 Inside air outlet 11 Casing 12 Outside air suction port 13 Outside air outlet 14 Inside air outlet 15 Inside / outside partition plate 16 Inside air section 17 Outside air section 18 Inside air blower 18a Inside air blower partition plate 18b Inside air blower chamber 19 Outside air blower 19a Outside air blower 19a One plate part 19c Second plate part 19d Outside air blower chamber 20 Condenser 21 Evaporator 22 Refrigerant air pipe 23 Refrigerant liquid pipe 24 Heat exchanger 25 Header 26 Tube 27 Fin 28 Outside air air passage partition plate 29 Outside air air passage forming plate 30 Inside air suction Port 41 Inside air passage hole guide 42 Protruding piece 51 Outside air conditioner inlet 52 Outside air conditioner outlet 53 Inside air conditioner inlet 54 Inside air conditioner outlet 55 First plate body 56 Second plate body 57 Third plate body 58 Fourth plate body 71 Storage box Blower 81a 1st protruding part 81b 2nd protruding part 82 Reinforcing part 83 Cover 84 Chamber air passage 85a Part of air conditioner 85b Part of air conditioner

Claims (9)

It has a chamber member, a casing, and a heat exchanger.
A cooling device that cools the inside air, which is the air inside the heating element storage box.
The chamber member is provided on the upper surface of the heating element storage box and has an inside air passage hole.
The casing is provided on the upper surface of the chamber member and has an inside air suction port, an inside air outlet, an outside air suction port, and an outside air outlet.
The heat exchanger is provided inside the casing.
The casing has an inside air compartment and an outside air compartment inside.
The inside air passage hole has a first inside air passage hole and a second inside air passage hole.
The first inside air passage hole and the second inside air passage hole are sequentially provided along the air flow flowing through the chamber air passage inside the chamber member.
A cooling device characterized in that a first protruding portion protruding into the chamber air passage is provided between the first inside air passing hole and the second inside air passing hole inside the chamber member. It has an inner / outer partition plate provided inside the casing, and has an inner / outer partition plate.
The inner / outer partition plate divides the inner air section and the outer air section into independent spaces, respectively.
The heat exchanger includes a condenser and an evaporator.
The evaporator is provided in the inside air section, and a part of the inside air flows from the chamber air passage in the order of the inside air passage hole, the inside air suction port, the evaporator, and the inside air outlet.
The cooling device according to claim 1, wherein the condenser is provided in the outside air section, and a part of the outside air flows from the outside air suction port to the condenser and the outside air outlet in this order. An outside air passage and an inside air passage are provided inside the heat exchanger.
The outside air passage communicates with the outside air suction port and the outside air outlet.
The inside air passage communicates with the inside air suction port and the inside air outlet.
The cooling device according to claim 1, wherein the heat exchanger is a heat exchange element composed of a plate made of synthetic resin. The inside air passage hole has a third inside air passage hole in addition to the first inside air passage hole and the second inside air passage hole.
The first inside air passage hole, the second inside air passage hole, and the third inside air passage hole are provided in order along the air flow flowing through the chamber air passage.
Inside the chamber member, a second protruding portion protruding into the chamber air passage is provided between the second internal air passage hole and the third internal air passage hole.
The invention according to any one of claims 1 to 3, wherein the second protrusion protrudes longer than the first protrusion in a direction perpendicular to the direction of the chamber air passage. Cooling system. The chamber member has a shape that is longer in the horizontal direction than in the vertical direction.
The direction of the chamber air passage has a horizontal component and has a horizontal component.
The cooling device according to any one of claims 1 to 3, wherein the first protruding portion projects downward from the inner upper surface of the chamber member. The chamber member has a shape that is longer in the horizontal direction than in the vertical direction.
The direction of the chamber air passage has a horizontal component and has a horizontal component.
The cooling device according to claim 4, wherein the second protruding portion projects downward from the inner upper surface of the chamber member. Inside the chamber member, a third protrusion that protrudes into the chamber air passage is provided.
The first protrusion, the second protrusion, and the third protrusion are sequentially provided along the air flow flowing through the chamber air passage inside the chamber member.
The cooling device according to claim 4, wherein the third protrusion protrudes longer than the second protrusion in a direction perpendicular to the direction of the chamber air passage. Between the first protruding portion and the second inside air passage hole, a reinforcing portion for reinforcing the chamber member is provided on the inner upper surface of the chamber member.
The cooling device according to any one of claims 1 to 7, wherein the first projecting portion projects longer than the reinforcing portion in a direction perpendicular to the direction of the chamber air passage. .. The cooling device according to any one of claims 1 to 8, wherein the heating element storage box is cooled in the storage chamber for storing the heating element storage box.

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