Phase change energy storage temperature control cabinet

Abstract

The utility model relates to a phase change energy storage temperature control cabinet, belonging to the cabinet heat radiation equipment technical field, the phase change energy storage temperature control cabinet comprises a cabinet body, an air conditioner, a phase change energy storage air cooler and a distributed air supply pipe bundle, the cabinet body is provided with a heating equipment zone, an air distribution zone and a temperature control zone, the air conditioner is arranged in the temperature control zone, and the air distribution zone is arranged in the temperature control zone. The temperature control area is divided into a cooling chamber and an energy storage chamber through a partition plate, the phase change energy storage air cooler is arranged in the energy storage chamber, the air outlet end of the air conditioner is communicated with the air inlet end of the phase change energy storage air cooler, the air outlet end of the phase change energy storage air cooler is connected with the distributed air supply pipe bundle, and the distributed air supply pipe bundle is communicated with the heating equipment area through the air distribution area. Cold air generated during operation of the air conditioner exchanges heat with the phase-change energy-storage air cooler, so that the phase-change energy-storage air cooler stores cold air, and when the air conditioner is in a standby state, the air conditioner can act as a standby cold source to be uniformly blown to a heating equipment area through the distributed air supply pipe bundle under the action of the air supply fan, so that the equipment is cooled, the heat dissipation and cooling effects are better, the standby time of the air conditioner is prolonged, and the service life of the air conditioner is prolonged. Frequent starting and stopping of the air conditioner are avoided, and energy consumption is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of cabinet heat dissipation equipment, and specifically relates to a phase change energy storage temperature control cabinet. Background Technology

[0002] Temperature-controlled cabinets are widely used in power distribution, automation, high-density energy storage battery compartments, 5G communication base stations and other fields. Since the cabinets usually contain heat-generating equipment such as power supplies, inverters, high-power chips, battery modules and power signal transceivers, the large amount of heat released by these devices during operation will continuously accumulate in the cabinet, causing the ambient temperature inside the cabinet to rise. When the ambient temperature inside the cabinet exceeds the operating temperature of the power electronic equipment inside the cabinet, it will cause problems such as equipment shutdown, battery thermal runaway and overheating and burnout of high-power-density power electronic equipment.

[0003] Currently, various temperature-controlled cabinets mainly include ventilated cooling cabinets, cabinet-door air-conditioned cabinets, and cabinets with built-in air conditioning. Ventilation cooling relies on external air convection for heat dissipation, but it cannot meet the heat dissipation and temperature control requirements of high-power equipment cabinets. Cabinet-door air conditioning systems have limited cooling capacity and air delivery distance, making them only suitable for small-power, small-volume cabinets. Built-in air-conditioned temperature-controlled cabinets generally meet the internal environmental temperature requirements of high-power cabinets, but they suffer from high energy consumption during air conditioning operation, high equipment failure rates due to frequent start-stop of the air conditioning compressor, and difficulty in achieving balanced air delivery within the cabinet due to the air outlet louvers only being able to adjust the air delivery direction. This results in localized overheating of equipment due to dead zones where cold air cannot reach certain areas.

[0004] Therefore, there is an urgent need for a phase change energy storage temperature control cabinet that is energy-saving, has better heat dissipation, and avoids frequent start-stop of air conditioning. Utility Model Content

[0005] This utility model provides a phase change energy storage temperature control cabinet to solve the technical problems of high energy consumption, poor heat dissipation, and frequent start-stop of air conditioning in the existing temperature control cabinet.

[0006] This utility model is achieved through the following technical solution: a phase change energy storage temperature control cabinet, including a cabinet body, an air conditioner, a phase change energy storage air cooler, and a distributed air supply duct bundle. The cabinet body is provided with a heating equipment area, an air distribution area, and a temperature control area. The air conditioner is installed in the temperature control area. The temperature control area is divided into a cooling chamber and an energy storage chamber by a partition. The phase change energy storage air cooler is installed in the energy storage chamber. The air outlet of the air conditioner is connected to the air inlet of the phase change energy storage air cooler. The air outlet of the phase change energy storage air cooler is connected to the distributed air supply duct bundle. The distributed air supply duct bundle is connected to the heating equipment area through the air distribution area.

[0007] To better realize this utility model, further optimizations are made to the above structure. The phase change energy storage air cooler includes a phase change energy storage air cooler shell, a phase change energy storage grid array, and a blower. Multiple phase change energy storage grid arrays are fixed in parallel and spaced apart inside the phase change energy storage air cooler shell. One end of the phase change energy storage air cooler shell is provided with an air conditioning cold air inlet and the other end is provided with a cold air outlet. The cold air outlet is connected to the air outlet of the air conditioner. Multiple phase change energy storage grid arrays are located between the air conditioning cold air inlet and the cold air outlet. The blower is installed on the cold air outlet, and the distributed air supply duct bundle is connected to the air outlet of the blower.

[0008] To better realize this utility model, further optimizations are made to the above structure. The phase change energy storage grid array includes a guide rail and a grid-type phase change energy storage module. The guide rail is fixed inside the housing of the phase change energy storage air cooler. Multiple grid-type phase change energy storage modules are arranged vertically in an array inside the housing of the phase change energy storage air cooler through the guide rail. The grid-type phase change energy storage module is filled with solid-liquid phase change energy storage material.

[0009] To better realize this utility model, further optimizations are made to the above structure. The distributed air supply duct bundle is provided with multiple distributed air supply outlets, which extend into the air distribution area and are evenly arranged in the vertical direction.

[0010] To better realize this utility model, further optimizations are made to the above structure. The other end of the phase change energy storage air cooler shell is also provided with a natural cold air inlet and an internal circulation return air outlet. Both the natural cold air inlet and the internal circulation return air outlet are provided with regulating valves. The cabinet is provided with a through hole corresponding to the position of the natural cold air inlet, which communicates with the natural cold air inlet.

[0011] To better realize this utility model, further optimizations are made to the above structure. The air conditioner includes an indoor unit and an outdoor unit. The outdoor unit is installed in the cooling chamber, and the indoor unit is installed in the energy storage chamber. The cabinet is provided with an outdoor unit heat dissipation outlet grille and an outdoor unit heat dissipation inlet grille. Both the outdoor unit heat dissipation outlet grille and the outdoor unit heat dissipation inlet grille are connected to the cooling chamber.

[0012] To better realize this utility model, further optimizations are made to the above structure. The top of the cabinet is provided with an exhaust vent, which is connected to the heating equipment area, and an exhaust valve is provided on the exhaust vent.

[0013] To better realize this utility model, the above structure is further optimized by providing a roller shutter door on the front of the cabinet.

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] The phase change energy storage temperature control cabinet provided by this utility model includes a cabinet, an air conditioner, a phase change energy storage air cooler, and a distributed air supply duct bundle. The cabinet is divided into a heating equipment area, an air distribution area, and a temperature control area. The air conditioner is located in the temperature control area, which is further divided into a cooling chamber and an energy storage chamber by a partition. The phase change energy storage air cooler is located in the energy storage chamber. The air outlet of the air conditioner is connected to the air inlet of the phase change energy storage air cooler. The air outlet of the phase change energy storage air cooler is connected to the distributed air supply duct bundle, which is connected to the heating equipment area through the air distribution area. With this structure, the cold air generated by the air conditioner during operation exchanges heat with the phase change energy storage air cooler, allowing the phase change energy storage air cooler to store cold. When the air conditioner is in standby mode, it can act as a backup cold source, blowing evenly onto the heating equipment area through the distributed air supply duct bundle under the action of the air supply fan, thus cooling the equipment. The heat dissipation and cooling effect is better, the standby time of the air conditioner is extended, frequent start-stop of the air conditioner is avoided, and energy consumption is reduced, making this utility model more practical. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the phase change energy storage temperature control cabinet in this utility model;

[0018] Figure 2 This is a front view of the phase change energy storage temperature control cabinet in this utility model;

[0019] Figure 3 This is a schematic diagram of the phase change energy storage air cooler and distributed air supply duct bundle in this utility model;

[0020] Figure 4 This is a structural schematic diagram of the phase change energy storage air cooler and distributed air supply tube bundle from another perspective in this utility model;

[0021] Figure 5 This is a rear view of the phase change energy storage temperature control cabinet in this utility model.

[0022] In the picture:

[0023] 1-Cabinet; 2-Battery module; 3-Phase change energy storage air cooler; 4-Distributed air supply duct bundle; 5-Heat generation equipment area; 6-Air distribution area; 7-Cooling chamber; 8-Energy storage chamber; 9-Phase change energy storage air cooler shell; 10-Air supply fan; 11-Air conditioning cold air inlet; 12-Cold air outlet; 13-Guide rail; 14-Grid-type phase change energy storage module; 15-Distributed air supply outlet; 16-Natural cold air inlet; 17-Internal circulation return air outlet; 18-Through hole; 19-Air conditioning indoor unit; 20-Air conditioning outdoor unit; 21-Air conditioning outdoor unit heat dissipation air outlet grille; 22-Air conditioning outdoor unit heat dissipation air inlet grille; 23-Exhaust vent; 24-Roller shutter door. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Example 1:

[0028] In this embodiment, a phase change energy storage temperature control cabinet, such as Figures 1 to 5As shown, the system includes a cabinet 1, an air conditioner, a phase change energy storage air cooler 3, and a distributed air supply duct bundle 4. Specifically, the cabinet 1 has a heating device area 5, an air distribution area 6, and a temperature control area. The air distribution area 6 is located between the heating device area 5 and the temperature control area. The air conditioner is installed in the temperature control area. The temperature control area is divided into a cooling chamber 7 and an energy storage chamber 8 by a partition. The energy storage chamber 8 is located above the cooling chamber 7. The phase change energy storage air cooler 3 is installed in the energy storage chamber 8. The air outlet of the air conditioner is connected to the air inlet of the phase change energy storage air cooler 3. The phase change energy storage air cooler 3 can exchange heat with the air conditioner to store part of the cooling capacity. The air outlet of the phase change energy storage air cooler 3 is connected to the distributed air supply duct bundle 4. The distributed air supply duct bundle 4 is connected to the heating device area 5 through the air distribution area 6.

[0029] With this structure, the cold air generated during the operation of the air conditioner exchanges heat with the phase change energy storage air cooler 3, allowing the phase change energy storage air cooler 3 to store cold. When the air conditioner is in standby mode, the cold stored in the phase change energy storage air cooler 3 can serve as a backup cold source. Under the action of the air supply fan 10, the cold air is evenly blown to the heat-generating equipment area 5 through the distributed air supply duct bundle 4, thereby cooling the equipment. The heat dissipation and cooling effect is better, the standby time of the air conditioner is extended, the frequent start-stop of the air conditioner is avoided, energy consumption is reduced, and the practicality of this utility model is enhanced.

[0030] In this embodiment, as Figure 1 As shown, the cabinet 1 includes a top panel, a back panel, a bottom panel, and two side panels. The front is equipped with a liftable roller shutter door 24. The cooling chamber 7 is divided into independent spaces by a partition. The heat-generating equipment area 5, the air distribution area 6, and the energy storage room 8 are open to each other. The air outlet of the air conditioner is led out to the energy storage room 8 through a pipe to connect to the air inlet of the phase change energy storage air cooler 3. The cold air is evenly blown from the air distribution area 6 to the heat-generating equipment area 5 through the distributed air supply duct bundle 4 for heat dissipation and cooling. The air distribution area 6 is equipped with a battery module 2 for providing emergency power.

[0031] As one specific implementation method of this embodiment, such as Figure 3As shown, the aforementioned phase change energy storage air cooler 3 includes a phase change energy storage air cooler housing 9, a phase change energy storage grid array, and a blower 10. The phase change energy storage air cooler housing 9 is fixed inside the energy storage chamber 8. Multiple phase change energy storage grid arrays are fixed parallel to each other and spaced apart inside the phase change energy storage air cooler housing 9. One end of the phase change energy storage air cooler housing 9 is provided with an air conditioning cold air inlet 11, and the other end is provided with a cold air outlet 12. The cold air outlet 12 is connected to the air outlet of the air conditioner. Multiple phase change energy storage grid arrays are located between the air conditioning cold air inlet 11 and the cold air outlet 12. The blower 10 is installed on the cold air outlet 12. The distributed air supply duct bundle 4 is connected to the air outlet of the blower 10. Specifically, the phase change energy storage grid array includes a guide rail 13 and a grid-type phase change energy storage module 14. The guide rail 13 is fixed inside the phase change energy storage air cooler housing 9. Multiple grid-type phase change energy storage modules 14 are fixed to each other. The energy storage modules 14 are arranged vertically in an array within the housing 9 of the phase change energy storage air cooler via the guide rails 13. The grid-type phase change energy storage modules 14 are filled with solid-liquid phase change energy storage materials. These solid-liquid phase change energy storage materials can exchange heat with the outside environment through solid-liquid phase change to achieve the functions of energy storage and release of cold energy. They are preferably straight-chain alkanes or inorganic salts. The air conditioning cold air blows through the grid-type phase change energy storage modules 14 and exchanges heat with them, so that the solid-liquid phase change energy storage materials can store cold energy. As an optimization, the top of the grid-type phase change energy storage module 14 is provided with a breather valve. The breather valve connects the internal and external spaces of the grid-type phase change energy storage module 14 to balance the pressure between the solid-liquid phase change energy storage material space inside the grid-type phase change energy storage module 14 and the external environment. This prevents the grid-type phase change energy storage module 14 from overpressure rupture or depressurization deformation caused by the volume change of the phase change material when the solid-liquid phase change energy storage material undergoes a phase change.

[0032] When the air conditioner is running, the cold air generated by the air conditioner enters the housing 9 of the phase change energy storage air cooler through the air conditioner cold air inlet 11, and blows through the grid-type phase change energy storage module 14 in sequence, thereby exchanging heat with the solid-liquid phase change cold storage material in the grid-type phase change energy storage module 14, storing part of the cold energy in the solid-liquid phase change cold storage material, and then blowing it through the cold air outlet 12 into the air distribution area 6 and the heat generation equipment area 5 by the distributed air supply duct bundle 4. When the air conditioner is in standby mode, the air supply fan 10 is started, and the cold energy stored in the grid-type phase change energy storage module 14 is released and blown into the air distribution area 6 and the heat generation equipment area 5 by the air supply fan 10, thereby replenishing the cold energy when the air conditioner is in standby mode, extending the standby time of the air conditioner, and reducing the start frequency of the air conditioner.

[0033] In this embodiment, as Figures 1 to 4As shown, the distributed air supply duct bundle 4 is provided with multiple distributed air supply outlets 15. The multiple distributed air supply outlets 15 extend into the air distribution area 6. The multiple distributed air supply outlets 15 are evenly arranged in the vertical direction, so that cold air can be blown to the upper, middle and lower areas of the heating equipment area 5 at the same time, so as to achieve the balance of air supply in the cabinet and avoid the occurrence of local heat loss dead corners.

[0034] As an optimization, such as Figure 4 As shown, the other end of the phase change energy storage air cooler housing 9 is also provided with a natural cold air inlet 16 and an internal circulation return air outlet 17. Both the natural cold air inlet 16 and the internal circulation return air outlet 17 are provided with regulating valves. The cabinet 1 is provided with a through hole 18 corresponding to the natural cold air inlet 16, which communicates with the natural cold air inlet 16. When the external ambient temperature is lower than the allowable operating temperature of the heating equipment area 5, the air conditioner is in standby or off mode. The natural cold air inlet 16 is opened and the internal circulation return air outlet 17 is closed. The air supply fan 10 is started, so that the external natural cold air enters the phase change energy storage air cooler housing 9 through the through hole 18 and the natural cold air inlet 16, and then interacts with the grid of the phase change energy storage air cooler 3. The solid-liquid phase change energy storage material in the grid-type phase change energy storage module 14 exchanges heat, allowing part of the cooling capacity of the external natural cold air to be stored in the grid-type phase change energy storage module 14. This cooling capacity is then distributed to the heat-generating equipment area 5 through the distributed air supply duct bundle 4. When the external ambient temperature rises, the cooling capacity stored in the grid-type phase change energy storage module 14 is released, thereby extending the cooling supply, delaying the start-up time of the air conditioner, and reducing energy consumption. On the other hand, when the internal temperature of the cabinet is lower than the external ambient temperature, the natural cold air inlet 16 is closed and the internal circulation return air inlet 17 is opened. At this time, regardless of whether the air conditioner is turned on or not, the air flow inside the cabinet 1 is in internal circulation mode and does not exchange heat with the external ambient temperature.

[0035] In this embodiment, as Figure 1 As shown, the top of the cabinet 1 is provided with an exhaust vent 23, which is connected to the heat-generating equipment area 5. The exhaust vent 23 is provided with an exhaust valve. When the temperature inside the cabinet is lower than the external ambient temperature, the exhaust vent 23 is opened to discharge the hot air inside the cabinet in real time. At the same time, the natural cold air inlet 16 is opened to continuously introduce external cold air into the cabinet, thereby reducing the energy consumption of the air conditioner.

[0036] In this embodiment, as Figure 1As shown, the air conditioner includes an indoor unit 19 and an outdoor unit 20. The outdoor unit 20 is installed in the cooling chamber 7, and the indoor unit 19 is installed in the energy storage chamber 8. The cabinet 1 is provided with an outdoor unit heat dissipation air outlet 21 and an outdoor unit heat dissipation air inlet 22. Both the outdoor unit heat dissipation air outlet 21 and the outdoor unit heat dissipation air inlet 22 are connected to the cooling chamber 7. The outdoor unit heat dissipation air outlet 21 and the outdoor unit heat dissipation air inlet 22 ensure that the outdoor unit 20 can normally produce cold air, and then deliver the cold air to the indoor unit 19 through a pipe. The indoor unit 19 is then connected to the air conditioning cold air inlet 11 of the phase change energy storage air cooler shell 9 through a pipe.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A phase change energy storage temperature control cabinet, characterized in that: The device includes a cabinet (1), an air conditioner, a phase change energy storage air cooler (3), and a distributed air supply duct bundle (4). The cabinet (1) is provided with a heat-generating equipment area (5), an air distribution area (6), and a temperature control area. The air conditioner is located in the temperature control area. The temperature control area is divided into a cooling chamber (7) and an energy storage chamber (8) by a partition. The phase change energy storage air cooler (3) is located in the energy storage chamber (8). The air outlet of the air conditioner is connected to the air inlet of the phase change energy storage air cooler (3). The air outlet of the phase change energy storage air cooler (3) is connected to the distributed air supply duct bundle (4). The distributed air supply duct bundle (4) is connected to the heat-generating equipment area (5) through the air distribution area (6).

2. The phase change energy storage temperature control cabinet according to claim 1, characterized in that: The phase change energy storage air cooler (3) includes a phase change energy storage air cooler shell (9), a phase change energy storage grid array and a blower (10). Multiple phase change energy storage grid arrays are fixed in parallel and spaced apart inside the phase change energy storage air cooler shell (9). One end of the phase change energy storage air cooler shell (9) is provided with an air conditioning cold air inlet (11) and the other end is provided with a cold air outlet (12). The cold air outlet (12) is connected to the air outlet of the air conditioner. Multiple phase change energy storage grid arrays are located between the air conditioning cold air inlet (11) and the cold air outlet (12). The blower (10) is installed on the cold air outlet (12). The distributed air supply duct bundle (4) is connected to the air outlet of the blower (10).

3. The phase change energy storage temperature control cabinet according to claim 2, characterized in that: The phase change energy storage grid array includes a guide rail (13) and a grid-type phase change energy storage module (14). The guide rail (13) is fixed inside the housing (9) of the phase change energy storage air cooler. Multiple grid-type phase change energy storage modules (14) are arranged vertically in an array inside the housing (9) of the phase change energy storage air cooler via the guide rail (13). The grid-type phase change energy storage module (14) is filled with solid-liquid phase change energy storage material.

4. The phase change energy storage temperature control cabinet according to claim 2, characterized in that: The distributed air supply duct bundle (4) is provided with multiple distributed air supply outlets (15), which extend into the air distribution area (6) and are distributed in a vertical direction.

5. A phase change energy storage temperature control cabinet according to claim 2, characterized in that: The other end of the phase change energy storage air cooler shell (9) is also provided with a natural cold air inlet (16) and an internal circulation return air inlet (17). Both the natural cold air inlet (16) and the internal circulation return air inlet (17) are provided with regulating valves. The cabinet (1) is provided with a through hole (18) corresponding to the position of the natural cold air inlet (16) and communicating with the natural cold air inlet (16).

6. A phase change energy storage temperature control cabinet according to any one of claims 1-5, characterized in that: The air conditioner includes an indoor unit (19) and an outdoor unit (20). The outdoor unit (20) is located in the cooling chamber (7), and the indoor unit (19) is located in the energy storage chamber (8). The cabinet (1) is provided with an outdoor unit heat dissipation air outlet (21) and an outdoor unit heat dissipation air inlet (22). Both the outdoor unit heat dissipation air outlet (21) and the outdoor unit heat dissipation air inlet (22) are connected to the cooling chamber (7).

7. A phase change energy storage temperature control cabinet according to claim 6, characterized in that: The cabinet (1) has an exhaust vent (23) at the top, which is connected to the heating equipment area (5). An exhaust valve is provided on the exhaust vent (23).

8. A phase change energy storage temperature control cabinet according to claim 7, characterized in that: The cabinet (1) has a roller shutter door (24) on the front.

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