Air-cooling heat dissipation structure for energy storage cabinet

Abstract

The utility model discloses an air-cooling heat dissipation structure for an energy storage cabinet. The air-cooling heat dissipation structure comprises an air conditioner all-in-one machine arranged on the rear side of the exterior of a cabinet body, and an air draft duct and an air outlet duct which are arranged in the cabinet body. The air draft duct is transversely arranged on the upper portion of the battery rack and provided with an inlet and an outlet, the outlet is connected with an air inlet of the air conditioner all-in-one machine, and the inlet is formed in the front side of the battery rack and communicated with the air return gap; the air outlet duct is vertically arranged in the middle of the air inlet gap and communicated with an air outlet of the air conditioner all-in-one machine, and the two sides of the air outlet duct are closed, so that cold air blown out of the air outlet of the air conditioner all-in-one machine flows in the vertical direction and enters the battery rack from the air inlet gap in the rear side of the battery rack; the battery rack comprises multiple layers, a front panel is arranged on the front side of each layer of battery rack, an exhaust fan is arranged on each front panel, and cold air entering the battery rack exchanges heat with the battery pack, is exhausted to the air return gap by the exhaust fan, enters the exhaust air duct through the inlet and flows back to the air inlet of the air conditioner all-in-one machine.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of energy storage cabinets, in particular to an air-cooling heat dissipation structure for energy storage cabinets. Background Art

[0002] With the rapid development of the energy storage industry, the energy density of energy storage cabinets is getting higher and higher, and the number of battery clusters arranged inside is increasing. As the number of battery packs increases, the heat inside the energy storage cabinet is also increasing. How to solve the heat dissipation inside the energy storage cabinet so that the temperature of the battery pack remains reasonably consistent during operation has always been an urgent problem to be solved in the energy storage design process.

[0003] Most existing energy storage cabinets dissipate heat by installing a wall-mounted air-conditioning integrated cooling device at the rear of the energy storage cabinet to introduce cold air into the energy storage cabinet to cool the battery pack. Since hot air rises and cold air sinks, after the equipment is running stably, a large amount of cold air will accumulate at the bottom of the energy storage cabinet, resulting in low temperature of the battery pack at the bottom, too high temperature of the battery pack at the top, and poor temperature uniformity of the battery cluster. Utility Model Content

[0004] The utility model aims at the problems and shortcomings of the prior art and provides a novel air-cooling heat dissipation structure for an energy storage cabinet.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides an air-cooling heat dissipation structure for an energy storage cabinet, the energy storage cabinet comprising a cabinet body and a battery rack arranged in the cabinet body, a return air gap is reserved between the front side of the battery rack and the cabinet body, an air inlet gap is reserved between the rear side of the battery rack and the cabinet body, a battery pack is arranged in the battery rack, and is characterized in that the air-cooling heat dissipation structure comprises an air-conditioning integrated machine arranged on the rear side of the cabinet body, an exhaust air duct and an air outlet air duct arranged in the cabinet body;

[0007] The exhaust air duct is transversely arranged on the upper part of the battery rack, and the exhaust air duct has an inlet and an outlet, the outlet is connected to the air inlet of the air conditioner, and the inlet is arranged on the front side of the battery rack and communicates with the return air gap;

[0008] The air outlet duct is vertically arranged in the middle of the air inlet gap and connected to the air outlet of the air conditioner. Both sides of the air outlet duct are closed, so that the cold air blown out of the air outlet of the air conditioner flows in a vertical direction and enters the battery rack from the air inlet gap at the rear side of the battery rack.

[0009] The battery rack is multi-layered, and a front panel is provided on the front side of each layer of the battery rack. An exhaust fan is provided on the front panel. The cold air entering the battery rack is extracted into the return air gap by the exhaust fan after heat exchange with the battery pack, enters the exhaust duct through the inlet, and flows back to the air inlet of the air-conditioning integrated machine.

[0010] Optionally, the exhaust duct includes a main body portion and an interface portion which are closed and connected. The main body portion is an overall rectangular structure and completely blocks the top of the battery rack in the horizontal direction, blocking the hot air in the battery rack below the exhaust duct from passing through. The interface portion is trumpet-shaped and connected to the air inlet of the air conditioner.

[0011] Optionally, a notch is formed on one side where the main body and the interface portion are connected, and the notch is not connected to the inside of the exhaust duct but is connected to the air inlet gap, allowing cold air blown out of the air outlet of the air-conditioning integrated unit to pass through the notch in a vertical direction and enter above the exhaust duct.

[0012] Optionally, an air guide plate is provided in the interface portion, and the air guide plate extends toward the air inlet of the air conditioner.

[0013] Optionally, ventilation holes are provided on both sides of the air outlet duct near the top.

[0014] The positive and progressive effects of the utility model are:

[0015] The utility model provides an air-cooled heat dissipation structure for an energy storage cabinet, wherein an exhaust duct and an exhaust duct are arranged, the exhaust duct is arranged horizontally on the upper part of the battery rack, the exhaust duct has an inlet and an outlet, the outlet is connected to the air inlet of the air-conditioning integrated machine, and the inlet is arranged on the front side of the battery rack and is connected with the return air gap; the exhaust duct is vertically arranged in the middle of the air inlet gap and is connected with the air outlet of the air-conditioning integrated machine, and both sides of the exhaust duct are closed, so that the cold air blown out from the air outlet of the air-conditioning integrated machine flows in a vertical direction and enters the battery rack from the air inlet gap at the rear side of the battery rack; the battery rack is multi-layered, and a front panel is arranged on the front side of each layer of battery rack, and an exhaust fan is arranged on the front panel; the exhaust duct and the exhaust duct cooperate with the air-conditioning integrated machine and the exhaust fan, so that the cold air sent into the battery rack by the air-conditioning integrated machine through the exhaust duct is heat-exchanged with the battery pack, and then is extracted to the return air gap by the exhaust fan, and then enters the exhaust duct through the inlet and flows back to the air inlet of the air-conditioning integrated machine, so as to realize uniform heat dissipation of each battery pack in the battery rack and improve the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of an air-cooling heat dissipation structure for an energy storage cabinet according to an embodiment of the utility model installed in the energy storage cabinet;

[0017] Figure 2This is a schematic diagram of the air-cooling heat dissipation structure and battery rack installation for the energy storage cabinet according to an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the exhaust duct structure of an embodiment of the utility model;

[0019] Figure 4 A side view of the exhaust duct of an embodiment of the utility model;

[0020] Figure 5 A bottom view of the exhaust duct of an embodiment of the utility model;

[0021] Figure 6 This is a schematic diagram of the front panel structure of an embodiment of the utility model;

[0022] Figure 7 This is a schematic diagram of the installation of the air outlet duct and the air conditioner in one unit according to an embodiment of the utility model;

[0023] Figure 8 This is a side view of the installation of the air outlet duct and the air conditioner integrated unit according to an embodiment of the utility model.

[0024] In the figure:

[0025] 1. Cabinet; 11. Air inlet clearance; 12. Air return clearance;

[0026] 2. Air outlet duct; 21. Ventilation hole;

[0027] 3. exhaust air duct; 31. inlet; 32. outlet; 33. main body; 34. interface; 341. air guide plate; 35. notch;

[0028] 4. Battery rack;

[0029] 5. Battery pack;

[0030] 6. Front panel; 61. Exhaust fan;

[0031] 7. Air conditioning all-in-one unit. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0033] See also Figure 1-Figure 8The present embodiment provides an air-cooling heat dissipation structure for an energy storage cabinet, the energy storage cabinet comprises a cabinet body 1 and a battery rack 4 arranged in the cabinet body 1, a return air gap 12 is reserved between the front side of the battery rack 4 and the cabinet body 1, an air inlet gap 11 is reserved between the rear side of the battery rack 4 and the cabinet body 1, a battery pack 5 is arranged in the battery rack 4, and the air-cooling heat dissipation structure comprises an air-conditioning integrated machine 7 arranged on the rear side of the cabinet body 1, an exhaust air duct 3 and an outlet air duct 2 arranged in the cabinet body 1;

[0034] The exhaust air duct 3 is transversely arranged on the upper part of the battery rack 4, and the exhaust air duct 3 has an inlet 31 and an outlet 32, the outlet 32 ​​is connected to the air inlet of the air conditioner 7, and the inlet 31 is arranged on the front side of the battery rack 4 and communicates with the return air gap 12;

[0035] The air outlet duct 2 is vertically arranged in the middle of the air inlet gap 11 and connected to the air outlet of the air conditioner 7. Both sides of the air outlet duct 2 are closed, so that the cold air blown out of the air outlet of the air conditioner 7 flows in the vertical direction and enters the battery rack 4 from the air inlet gap 11 at the rear side of the battery rack 4;

[0036] The battery rack 4 is multi-layered, and a front panel 6 is provided on the front side of each layer of the battery rack 4. An exhaust fan 61 is provided on the front panel 6. The cold air entering the battery rack 4 is heat exchanged with the battery pack 5 and then drawn out by the exhaust fan 61 to the return air gap 12, enters the exhaust duct 3 through the inlet 31, and flows back to the air inlet of the air-conditioning integrated machine 7, thereby completing the heat dissipation of the battery pack 5.

[0037] In some embodiments, the exhaust duct 3 includes a main body portion 33 and an interface portion 34 which are closed and connected. The main body portion 33 is an overall rectangular structure and completely blocks the top of the battery rack 4 in the horizontal direction, thereby blocking the hot air in the battery rack 4 below the exhaust duct 3 from passing through, and preventing the hot air from gathering at the top of the battery rack 4. The interface portion 34 is trumpet-shaped and connected to the air inlet of the air-conditioning integrated machine 7. The hot air after the cold air entering the battery rack 4 and the heat exchange with the battery pack 5 can only be extracted by the exhaust fan 61 to the return air gap 12, and then enters the exhaust duct 3 through the inlet 31 and flows back to the air inlet of the air-conditioning integrated machine 7 to complete the heat exchange cycle.

[0038] In some embodiments, a notch 35 is formed on one side where the main body 33 and the interface portion 34 are connected. The notch 35 is not connected to the interior of the exhaust duct 3 but is connected to the air inlet gap 11, allowing cold air blown out from the air outlet of the air-conditioning integrated unit 7 to pass through the notch 35 in the vertical direction into the top of the exhaust duct 3, thereby achieving cooling and heat dissipation above the exhaust duct 3.

[0039] In some embodiments, an air guide plate 341 is provided in the interface portion 34, and the air guide plate 341 extends toward the air inlet of the air-conditioning integrated unit 7, which is beneficial to the backflow of hot air.

[0040] In some embodiments, ventilation holes 21 are provided near the top on both sides of the air outlet duct 2 to allow cold air blown out from the air outlet of some air-conditioning integrated units 7 to pass through the ventilation holes 21 to achieve heat dissipation on both sides of the air outlet duct 2.

[0041] In summary, the air-cooling heat dissipation structure for the energy storage cabinet provided by the utility model is provided with an exhaust duct 3 and an outlet duct 2. The exhaust duct 3 is horizontally arranged on the upper part of the battery rack 4. The exhaust duct 3 has an inlet 31 and an outlet 32. The outlet 32 ​​is connected to the air inlet of the air-conditioning integrated machine 7. The inlet 31 is arranged on the front side of the battery rack 4 and is connected to the return air gap 12; the outlet duct 2 is vertically arranged in the middle of the air inlet gap 11 and is connected to the air outlet of the air-conditioning integrated machine 7. Both sides of the outlet duct 2 are closed, so that the cold air blown out of the air outlet of the air-conditioning integrated machine 7 flows in the vertical direction from the battery rack 4. The battery rack 4 is entered through the air inlet gap 11 on the rear side; the battery rack 4 is multi-layered, and a front panel 6 is provided on the front side of each layer of the battery rack 4, and an exhaust fan 61 is provided on the front panel 6; the exhaust duct 3 and the outlet duct 2 cooperate with the air-conditioning integrated machine 7 and the exhaust fan 61, and the cold air sent into the battery rack 4 by the air-conditioning integrated machine 7 through the outlet duct 2 is heat exchanged with the battery pack 5, and then is extracted by the exhaust fan 61 to the return air gap 12, and then enters the exhaust duct 3 through the inlet 31 and refluxes to the air inlet of the air-conditioning integrated machine 7, thereby realizing uniform heat dissipation of each battery pack 5 in the battery rack 4 and improving the heat dissipation effect.

[0042] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. An air-cooling heat dissipation structure for an energy storage cabinet, the energy storage cabinet comprising a cabinet body and a battery rack arranged in the cabinet body, a return air gap is reserved between the front side of the battery rack and the cabinet body, an air inlet gap is reserved between the rear side of the battery rack and the cabinet body, a battery pack is arranged in the battery rack, characterized in that: The air-cooling heat dissipation structure includes an air-conditioning integrated unit arranged on the rear side of the cabinet, an air intake duct and an air outlet duct arranged in the cabinet; The exhaust air duct is transversely arranged on the upper part of the battery rack, and the exhaust air duct has an inlet and an outlet, the outlet is connected to the air inlet of the air conditioner, and the inlet is arranged on the front side of the battery rack and communicates with the return air gap; The air outlet duct is vertically arranged in the middle of the air inlet gap and connected to the air outlet of the air conditioner. Both sides of the air outlet duct are closed, so that the cold air blown out of the air outlet of the air conditioner flows in a vertical direction and enters the battery rack from the air inlet gap at the rear side of the battery rack. The battery rack is multi-layered, and a front panel is provided on the front side of each layer of the battery rack. An exhaust fan is provided on the front panel. The cold air entering the battery rack is extracted into the return air gap by the exhaust fan after heat exchange with the battery pack, enters the exhaust duct through the inlet, and flows back to the air inlet of the air-conditioning integrated machine.

2. The air-cooling heat dissipation structure for an energy storage cabinet according to claim 1, characterized in that: The exhaust air duct includes a main body portion and an interface portion which are closed and connected. The main body portion is an overall rectangular structure and completely blocks the top of the battery rack in the horizontal direction, blocking the hot air in the battery rack below the exhaust air duct from passing through. The interface portion is trumpet-shaped and connected to the air inlet of the air conditioner.

3. The air-cooling heat dissipation structure for an energy storage cabinet according to claim 2, characterized in that: A notch is formed on one side where the main body and the interface portion are connected, and the notch is not connected to the inside of the exhaust duct but is connected to the air inlet gap, allowing cold air blown out of the air outlet of the air-conditioning integrated machine to pass through the notch in a vertical direction and enter above the exhaust duct.

4. The air-cooling heat dissipation structure for an energy storage cabinet according to claim 2, characterized in that: The interface portion is provided with an air guide plate, and the air guide plate is extended toward the air inlet of the air conditioner.

5. The air-cooling heat dissipation structure for an energy storage cabinet according to claim 1, characterized in that: Ventilation holes are arranged on both sides of the air outlet duct near the top.

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