Energy storage cabinet

Abstract

The utility model relates to the technical field of energy storage equipment, and particularly discloses an energy storage cabinet which comprises a cabinet body with a storage space, a first partition plate and a second partition plate, the storage space is divided into a first chamber, a second chamber and a third chamber which are arranged from top to bottom by a first partition plate and a second partition plate, and the energy storage cabinet further comprises a liquid cooling unit arranged in the third chamber. According to the energy storage cabinet provided by the utility model, the liquid cooling unit is arranged in the lowermost third chamber, so that maintenance personnel can conveniently overhaul the liquid cooling unit, and the occupied area of the energy storage cabinet is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage equipment, in particular to an energy storage cabinet. Background Art

[0002] The energy storage cabinets currently on the market usually have liquid cooling units for dissipating heat from battery devices installed on the top or one side of the energy storage cabinet in the width direction, occupying the height and width of the battery compartment. If the liquid cooling unit is installed on one side of the energy storage cabinet in the width direction, the energy storage cabinet will bulge out and fail to meet the standards of certain industries. When the liquid cooling unit is installed on the top of the energy storage cabinet, its height from the ground is usually more than 2m. According to statistics, after the liquid cooling unit has been in operation for 2-3 years, the failure rate of the compressor is 2%-2.5%, the failure rate of the water pump is 1.8%-2.2%, and the failure rate of the fan is about 2.5%. When the liquid cooling unit fails, the maintenance personnel need to climb to a height of about 2m, open the energy storage cabinet cover, and then perform maintenance and repairs on the liquid cooling unit. The operation is more troublesome and has safety risks. Utility Model Content

[0003] The utility model aims to provide an energy storage cabinet which is convenient for maintenance personnel to maintain a liquid cooling unit.

[0004] To achieve the above-mentioned purpose, the utility model proposes an energy storage cabinet, comprising a cabinet body with a storage space, a first partition and a second partition arranged in the storage space and spaced apart in the up and down directions, the storage space is divided by the first partition and the second partition into a first chamber, a second chamber, and a third chamber arranged from top to bottom, the energy storage cabinet also comprising a liquid cooling unit arranged in the third chamber.

[0005] As a further improvement of the present invention, the energy storage cabinet further includes a cabinet door connected to the cabinet body for opening and closing the storage space, and the cabinet door is arranged on one side of the cabinet body in the thickness direction of the energy storage cabinet.

[0006] As a further improvement of the utility model, the cabinet body and / or the cabinet door are provided with a first air inlet and a first air outlet located around the third chamber, and the liquid cooling unit includes a fan arranged at the first air outlet and a condenser arranged on one side of the fan.

[0007] As a further improvement of the present invention, the cabinet body includes a frame, two first covering plates connected to the frame and located on both sides of the storage space in the width direction of the energy storage cabinet, and a second covering plate connected to the frame and located on the side of the storage space away from the cabinet door in the width direction of the energy storage cabinet. The first air inlet is opened on at least one of the first covering plates and the cabinet door, and the first air outlet is opened on the second covering plate.

[0008] As a further improvement of the present invention, a second air inlet located around the second chamber is provided on the cabinet body and / or the cabinet door, and a first vent connecting the second chamber and the third chamber is provided on the second partition plate.

[0009] As a further improvement of the present invention, the second sealing plate includes a first plate body and a second plate body detachably connected to the frame, the first plate body is located on one side of the first chamber in the thickness direction of the energy storage cabinet, and the second plate body is located on one side of the second chamber and the third chamber in the thickness direction of the energy storage cabinet.

[0010] As a further improvement of the present invention, the cabinet door includes a first door body for opening and closing the first compartment, and a second door body located below the first door body and for opening and closing the second compartment and the third compartment.

[0011] As a further improvement of the present invention, the energy storage cabinet also includes a panel connected to the cabinet body and located on one side of the third chamber in the thickness direction of the energy storage cabinet, and a second ventilating port connecting the inside and outside of the third chamber is opened on the panel. The liquid cooling unit also includes a liquid inlet pipe, a liquid outlet pipe, and a liquid replenishing pipe. The liquid inlet pipe, the liquid outlet pipe, and the liquid replenishing pipe are all connected to the panel and one end extends to the side of the panel away from the third chamber.

[0012] As a further improvement of the present invention, the energy storage cabinet also includes a liquid cooling unit control unit arranged in the third chamber for controlling the liquid cooling unit, and the liquid cooling unit control unit has a connector for electrically connecting to an external device, and the connector is connected to the panel and one end extends to a side of the panel away from the third chamber.

[0013] As a further improvement of the present invention, the energy storage cabinet includes a plurality of battery racks for placing battery devices arranged in the first compartment.

[0014] Beneficial effects of the utility model:

[0015] The energy storage cabinet provided by the utility model arranges the liquid cooling unit in the third chamber at the bottom, which is convenient for maintenance personnel to inspect and repair the liquid cooling unit and reduces the floor space occupied by the energy storage cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of an energy storage cabinet provided in one embodiment of the utility model at a certain viewing angle;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the energy storage cabinet in another perspective;

[0018] Figure 3for Figure 1 A structural schematic diagram of a part of the energy storage cabinet in FIG.

[0019] Figure 4 for Figure 1 A schematic front view of the energy storage cabinet with the cabinet door removed;

[0020] Figure 5 for Figure 4 Schematic diagram of the cross-section of the energy storage cabinet after being cut along the AA direction.

[0021] In the figure:

[0022] 100. Energy storage cabinet;

[0023] 10. Cabinet; 11. Storage space; 111. First compartment; 1111. Battery rack; 1112. Exhaust vent; 112. Second compartment; 113. Third compartment; 12. First air inlet; 13. First air outlet; 14. Frame; 15. First cover plate; 16. Second cover plate; 161. First board; 162. Second board; 17. Second air inlet;

[0024] 20. first partition;

[0025] 30. second partition; 31. first vent;

[0026] 40. Liquid cooling unit; 401. Fan; 402. Condenser; 403. Liquid inlet pipe; 404. Liquid outlet pipe; 405. Liquid replenishing pipe; 406. Compressor; 407. Water pump; 408. Expansion tank; 409. Heat exchanger; 410. Heater;

[0027] 50. cabinet door; 51. first door body; 52. second door body;

[0028] 60. panel; 61. second vent;

[0029] 70. Liquid cooling unit control unit; 71. Connector. DETAILED DESCRIPTION

[0030] The present invention will be described in detail below in conjunction with the embodiments shown in the accompanying drawings. However, the embodiments do not limit the present invention, and any changes in mechanism, method, or function made by a person skilled in the art based on the embodiments are all within the protection scope of the present invention.

[0031] The terms used herein, such as "upper", "lower", "left", "right", "front", "back", etc., which indicate relative spatial positions, are used for the purpose of convenience to describe the relationship between one feature and another feature as shown in the accompanying drawings. It is understood that, depending on the placement of the product, the terms of relative spatial positions may be intended to include different orientations other than those shown in the drawings, and should not be construed as limitations on the claims. In addition, the descriptor "horizontal" used herein is not completely equivalent to being perpendicular to the direction of gravity, and a certain angle of inclination is allowed.

[0032] like Figure 1-5 As shown, an embodiment of the utility model provides an energy storage cabinet 100, which includes a cabinet body 10 having a storage space 11, a first partition 20 and a second partition 30 arranged in the storage space 11 and spaced apart in the up-down direction, the storage space 11 is divided into a first compartment 111, a second compartment 112, and a third compartment 113 by the first partition 20 and the second partition 30, the first compartment 111 is located above the first partition 20, the second compartment 112 is located between the first partition 20 and the second partition 30, and the third compartment 113 is located below the second partition 30. The first compartment 111 is used to place a battery device, and the second compartment 112 is used to place devices such as a battery control unit, a high-voltage box, and a power storage converter (PCS) that control the battery device. The energy storage cabinet 100 further includes a liquid cooling unit 40 disposed in the third chamber 113 . The liquid cooling unit 40 is used to cool the battery device in the first chamber 111 to ensure that the battery device operates in a reasonable temperature range.

[0033] For ease of explanation, Figure 1 The X-axis in the figure defines the width of the energy storage cabinet 100 , the Y-axis defines the thickness direction of the energy storage cabinet 100 , and the Z-axis defines the up-down direction of the energy storage cabinet 100 .

[0034] The energy storage cabinet 100 includes a plurality of battery racks 1111 for placing battery devices in the first compartment 111. The plurality of battery racks 1111 are arranged at intervals in the vertical direction, and a plurality of battery devices can be placed on each battery rack 1111 to form a battery cluster. In this embodiment, there are four battery racks 1111, but the number of battery racks 1111 can also be increased to five, six or even more.

[0035] The liquid cooling unit 40 is arranged in the third chamber 113, and its height from the ground can be maintained at about 0.2m, which is convenient for maintenance personnel to maintain it. The liquid cooling unit 40 does not occupy the width of the energy storage cabinet 100, reducing the footprint of the energy storage cabinet 100. The liquid cooling unit 40 is not provided with a separate protective shell, but is protected by the side wall of the energy storage cabinet 100, which reduces the weight of the energy storage cabinet 100 as a whole.

[0036] The energy storage cabinet 100 further includes a cabinet door 50 connected to the cabinet body 10 for opening and closing the storage space 11. In the thickness direction of the energy storage cabinet 100, the cabinet door 50 is arranged on one side of the cabinet body 10. It can be imagined that the storage space 11 has an opening open to the cabinet door 50. The cabinet door 50 has two states, open and closed. The cabinet door 50 is normally in a closed state to seal the storage space 11. When it is necessary to place or take out a device in the storage space 11, or to inspect the device in the storage space 11, the cabinet door 50 is in an open state. In the following, unless otherwise specified, the cabinet door 50 is in a closed state by default.

[0037] The cabinet body 10 and / or the cabinet door 50 are provided with a first air inlet 12 and a first air outlet 13 located around the third chamber 113. The first air inlet 12 and the first air outlet 13 are connected to the inside and outside of the third chamber 113. The liquid cooling unit 40 includes a fan 401 disposed at the first air outlet 13 and a condenser 402 disposed on one side of the fan 401. After the fan 401 is started, the outside air can enter the third chamber 113 from the first air inlet 12, and after flowing through the third chamber 113, it is discharged from the third chamber 113 from the first air outlet 13. In this way, the temperature of the condenser 402 and the entire third chamber 113 can be reduced. In this embodiment, at least two fans 401 are provided. Under the condition that the air volume that can be provided is the same, the more fans 401 there are, the less air volume a single fan 401 needs to provide, and the smaller the noise of the fan 401.

[0038] Specifically, the cabinet body 10 includes a frame 14, two first covering plates 15 connected to the frame 14 and located on both sides of the storage space 11 in the width direction of the energy storage cabinet 100, and a second covering plate 16 connected to the frame 14 and located on the side of the storage space 11 away from the cabinet door 50 in the thickness direction of the energy storage cabinet 100. The first air inlet 12 is opened on at least one of the first covering plates 15 and the cabinet door 50, and the first air outlet 13 is opened on the second covering plate 16.

[0039] In this embodiment, the cabinet door 50 is set at the front side of the energy storage cabinet 100, and the second sealing plate 16 is located at the rear side of the energy storage cabinet 100. With the above arrangement, the outside air enters the third chamber 113 from the front side and at least one side in the width direction of the energy storage cabinet 100, and is discharged from the third chamber 113 from the rear side of the energy storage cabinet 100, thereby ensuring the heat dissipation efficiency of the fan 401 to the condenser 402 and the third chamber 113.

[0040] Furthermore, the cabinet body 10 and / or the cabinet door 50 are provided with a second air inlet 17 located around the second chamber 112, and the second air inlet 17 is connected to the inside and outside of the second chamber 112. The second partition plate 30 is provided with a first vent 31 connected to the second chamber 112 and the third chamber 113. After the fan 401 is started, the outside air can enter the second chamber 112 from the second air inlet 17, and after flowing through the second chamber 112, enter the third chamber 113 through the first vent 31, and finally flow out of the third chamber 113 from the first air outlet 13. In this way, after the fan 401 is started, the temperature in the second chamber 112 can also be reduced.

[0041] Specifically, the second air inlet 17 is provided on the cabinet door 50 and the second sealing plate 16, that is, the outside air enters the second chamber 112 from the front and rear sides of the energy storage cabinet 100. It is conceivable that the second air inlet 17 can also be provided on the two first sealing plates 15. The second sealing plate 16 can also be provided with an exhaust port 1112 that communicates with the inside and outside of the first chamber 111, and a fan for extracting the air in the first chamber 111 can be installed at the exhaust port 1112 to reduce the temperature in the first chamber 111.

[0042] The second closing plate 16 includes a first plate body 161 and a second plate body 162 which are detachably connected to the frame 14. The first plate body 161 is located above the second plate body 162. The first plate body 161 is located on one side of the first chamber 111 in the thickness direction of the energy storage cabinet 100, and the second plate body 162 is located on one side of the second chamber 112 and the third chamber 113 in the thickness direction of the energy storage cabinet 100. When it is necessary to inspect and repair the devices in the second chamber 112 and the second chamber 113 (for example, the liquid cooling unit 40 fails or needs to be cleaned), the second plate body 162 can be removed from the frame 14. When it is necessary to inspect and repair the battery device in the first chamber 111, the first plate body 161 can be turned downward from the frame 14. In this way, the inspection and repair of the energy storage cabinet 100 is more convenient.

[0043] The cabinet door 50 includes a first door body 51 for opening and closing the first chamber 111, and a second door body 52 located below the first door body 51 and for opening and closing the second chamber 112 and the third chamber 113. Relevant personnel can open the first door body 51 or the second door body 52 separately as needed, thereby avoiding exposure of devices in the energy storage cabinet 100 to the outside as much as possible.

[0044] The energy storage cabinet 100 further includes a panel 60 connected to the cabinet body 10 and located on one side of the third chamber 113 in the thickness direction of the energy storage cabinet 100. A second vent 61 connected to the third chamber 113 is provided on the panel 60, and outside air can enter the third chamber 113 through the first air inlet 12 on the cabinet door 50 and the second vent 61 on the panel 60 in sequence. The liquid cooling unit 40 further includes a liquid inlet pipe 403, a liquid outlet pipe 404, and a liquid replenishing pipe 405. The liquid inlet pipe 403, the liquid outlet pipe 404, and the liquid replenishing pipe 405 are all connected to the panel 60 and one end thereof extends to the side of the panel 60 away from the third chamber 113. After the maintenance personnel opens the cabinet door 50, the liquid inlet pipe 403, the liquid outlet pipe 404, and the liquid replenishing pipe 405 are exposed to the maintenance personnel, and the maintenance personnel can conveniently replenish the coolant into the liquid inlet pipe 403, the liquid outlet pipe 404, and the liquid replenishing pipe 405.

[0045] The liquid cooling unit 40 also includes a compressor 406, a water pump 407, an expansion tank 408, a heat exchanger 409, a heater 410 and other components. The working principle thereof can be referred to the existing liquid cooling unit, which will not be described in detail here. The components of the liquid cooling unit 40 are discretely and modularly arranged to facilitate installation in the third chamber 113 and reduce the space required.

[0046] The liquid cooling unit 40 may also include a monitoring system for monitoring vulnerable parts such as the fan 401, the water pump 407, and the condenser 402. The monitoring system sends warning information to relevant personnel before these vulnerable parts reach the end of their service life, and the relevant personnel replace the vulnerable parts in a timely manner according to the warning information. For example, if the service life of the fan 401 is 20,000 hours, the warning information may be sent to relevant personnel after the fan has been running for 18,000 hours.

[0047] The compressor 406, the fan 401 and the water pump 407 can all be variable frequency type and have a certain redundancy in power, so that the energy consumption of the liquid cooling unit 40 can be reduced and the safe and reliable operation of the liquid cooling unit 40 can be ensured. When the external environment temperature is low, such as in winter or in a plateau environment, the compressor 406 of the liquid cooling unit 40 can be turned off, and the outdoor natural cold source can be used for cooling to reduce the power consumption of the liquid cooling unit 40.

[0048] The energy storage cabinet further includes a liquid cooling unit control unit 70 disposed in the third chamber 113 for controlling the liquid cooling unit 40. The liquid cooling unit control unit 70 has a connector 71 for electrically connecting to an external device. The connector 71 is connected to the panel 60 and one end extends to the side of the panel 60 away from the third chamber 113. In this embodiment, the connector 71 is preferably an aviation plug.

[0049] It should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0050] The above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person skilled in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. An energy storage cabinet, characterized in that: It includes a cabinet body with a storage space, a first partition and a second partition arranged in the storage space and spaced apart in the up and down directions, the storage space is divided by the first partition and the second partition into a first chamber, a second chamber, and a third chamber arranged from top to bottom, and the energy storage cabinet also includes a liquid cooling unit arranged in the third chamber.

2. The energy storage cabinet according to claim 1, characterized in that: The energy storage cabinet further includes a cabinet door connected to the cabinet body for opening and closing the storage space, and the cabinet door is arranged on one side of the cabinet body in the thickness direction of the energy storage cabinet.

3. The energy storage cabinet according to claim 2, characterized in that: The cabinet body and / or the cabinet door are provided with a first air inlet and a first air outlet located around the third chamber, and the liquid cooling unit includes a fan arranged at the first air outlet and a condenser arranged at one side of the fan.

4. The energy storage cabinet according to claim 3, characterized in that: The cabinet body includes a frame, two first covering plates connected to the frame and respectively located on both sides of the storage space in the width direction of the energy storage cabinet, and a second covering plate connected to the frame and located on a side of the storage space away from the cabinet door in the thickness direction of the energy storage cabinet. The first air inlet is opened on at least one of the first covering plates and the cabinet door, and the first air outlet is opened on the second covering plate.

5. The energy storage cabinet according to claim 4, characterized in that: The cabinet body and / or the cabinet door is provided with a second air inlet located around the second chamber, and the second partition plate is provided with a first ventilating opening communicating with the second chamber and the third chamber.

6. The energy storage cabinet according to claim 4, characterized in that: The second sealing plate includes a first plate body and a second plate body detachably connected to the frame, the first plate body is located on one side of the first chamber in the thickness direction of the energy storage cabinet, and the second plate body is located on one side of the second chamber and the third chamber in the thickness direction of the energy storage cabinet.

7. The energy storage cabinet according to claim 2, characterized in that: The cabinet door includes a first door body for opening and closing the first compartment, and a second door body located below the first door body and for opening and closing the second compartment and the third compartment.

8. The energy storage cabinet according to claim 3, characterized in that: The energy storage cabinet further includes a panel connected to the cabinet body and located on one side of the third chamber in the thickness direction of the energy storage cabinet, and a second ventilating port communicating with the inside and outside of the third chamber is provided on the panel. The liquid cooling unit further includes a liquid inlet pipe, a liquid outlet pipe, and a liquid replenishing pipe, and the liquid inlet pipe, the liquid outlet pipe, and the liquid replenishing pipe are all connected to the panel and one end of the panel extends to a side of the panel away from the third chamber.

9. The energy storage cabinet according to claim 8, characterized in that: The energy storage cabinet also includes a liquid cooling unit control unit arranged in the third chamber for controlling the liquid cooling unit, the liquid cooling unit control unit has a connector for electrically connecting to an external device, the connector is connected to the panel and one end extends to a side of the panel away from the third chamber.

10. The energy storage cabinet according to claim 1, characterized in that: The energy storage cabinet includes a plurality of battery racks arranged in the first compartment for placing battery devices.

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