Energy storage cabinet

Abstract

The utility model discloses an energy storage cabinet which comprises a frame body provided with a first placing area and a second placing area which are arranged in parallel; the battery pack group comprises a plurality of battery packs which are sequentially arranged in the first placement area from top to bottom; the electric control device group is arranged in the second placement area and comprises an electric box, a PCS, a cluster high-voltage box and a circuit breaker which are sequentially arranged from top to bottom; and the temperature control device is arranged in the second placement area and used for controlling the temperature of the first placement area and the second placement area. The battery pack group and the electric control device group of the energy storage cabinet are integrated on the frame body, so that the energy storage cabinet has the characteristic of high integration level.

Description

Technical Field

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

[0002] In order to deal with sudden power outages and some places that need electricity temporarily, energy storage power stations have become a better solution. Energy storage power stations are composed of many energy storage battery packs, and multiple battery packs are installed in series and parallel on the battery rack to ensure sufficient power supply.

[0003] In the energy storage cabinets currently on the market, the electronic control unit is placed separately on the cabinet door in order not to affect the heat dissipation of the battery pack. However, since the electronic control unit needs to be electrically connected to the battery pack through lines, the wiring of the lines is complicated, making it inconvenient to install the energy storage cabinet. Utility Model Content

[0004] In order to solve at least one problem existing in the above-mentioned prior art, according to one aspect of the utility model, an energy storage cabinet is provided, comprising: a frame, the frame having a first placement area and a second placement area arranged in parallel; a battery pack group, comprising a plurality of battery packs, and the plurality of battery packs are arranged in the first placement area in sequence from top to bottom; an electric control device group, arranged in the second placement area, comprising an electrical box, a PCS, a cluster high-voltage box and a circuit breaker arranged in sequence from top to bottom; a temperature control device, arranged in the second placement area, for controlling the temperature of the first placement area and the second placement area.

[0005] In some embodiments, the temperature control device is disposed between the cluster high voltage box and the circuit breaker.

[0006] In some embodiments, the temperature control device is provided with a mounting ear, and the mounting ear is threadedly connected to the frame.

[0007] In some embodiments, the battery pack is an air-cooled battery pack, and the air-cooled battery pack can drive airflow to flow from the front side to the rear side of the frame.

[0008] In some embodiments, the energy storage cabinet further includes a fire-fighting device, and the fire-fighting device is disposed between the electrical box and the PCS.

[0009] In some embodiments, the fire fighting device includes a fire extinguishing box and a smoke detection sensor, wherein the fire extinguishing box is used to store fire extinguishing gas, and the smoke detection sensor is used to detect combustion smoke.

[0010] In some embodiments, the fire extinguishing gas is perfluoroacetone.

[0011] In some embodiments, the frame includes a plurality of spaced-apart vertical bars and a plurality of spaced-apart support frames, wherein the plurality of support frames are respectively connected to the vertical bars, and the support frames are used to support the battery pack, the electrical box, the PCS, the cluster high-voltage box, the circuit breaker, and the temperature control device.

[0012] In some embodiments, the support frame includes a plurality of support rods arranged perpendicular to each other.

[0013] In some embodiments, the frame body further includes a plurality of reinforcing plates, each of which is connected to the vertical rod and one end of the supporting frame.

[0014] In summary, the energy storage cabinet provided by the utility model has the following technical effects:

[0015] By providing a first placement area and a second placement area, the first placement area can be used for a single battery pack group, and the second placement area can be used to place an electronic control device group, so that the battery pack group and the electronic control device group can be arranged separately and integrated on the frame at the same time, so that the entire energy storage cabinet has a high degree of integration. At the same time, by arranging the electrical box, PCS, cluster high-voltage box and circuit breaker in the electronic control device group from top to bottom in sequence, since the electrical box needs to be electrically connected to the PCS, cluster high-voltage box and circuit breaker respectively, it is placed at the top, so that the PCS, cluster high-voltage box and circuit breaker are The wiring harnesses of the box and the circuit breaker are collectively extended upward and then connected to the electrical box. The PCS, cluster high-voltage box and circuit breaker are arranged in sequence from top to bottom to be electrically connected in sequence. The cluster high-voltage box is located in the middle and needs to be electrically connected to each battery pack so that each battery pack can have a shorter lead, which is convenient for line layout. The circuit breaker is set at the bottom to facilitate connection with the mains. A temperature control device is set in the second placement area to cool the battery pack and the electronic control device group in the entire frame, thereby ensuring the normal use of the electrical devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of an energy storage cabinet from one perspective of an embodiment of the utility model;

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

[0018] Figure 3 for Figure 1 Enlarged schematic diagram of point I in the middle.

[0019] Figures: 100-energy storage cabinet, 10-frame, 11-first placement area, 12-second placement area, 13-vertical rod, 14-support frame, 141-support rod, 15-baffle, 16-reinforcement plate, 20-battery pack, 21-battery pack, 22-air inlet, 23-air outlet, 30-electronic control device, 31-electrical box, 32-PCS, 33-cluster high-voltage box, 34-circuit breaker, 40-temperature control device, 41-installation ear, 60-fire protection device, 61-fire extinguishing box, 62-smoke detection sensor. DETAILED DESCRIPTION

[0020] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] See also Figures 1 to 3 , an energy storage cabinet 100 provided in an embodiment of the utility model includes a frame 10, a battery pack group 20, an electronic control device group 30 and a temperature control device 40.

[0025] Among them, the frame 10 has a first placement area 11 and a second placement area 12 arranged in parallel; the battery pack group 20 includes a plurality of battery packs 21, and the plurality of battery packs 21 are arranged in the first placement area 11 from top to bottom; the electric control device group 30 is arranged in the second placement area 12, including an electrical box 31, a PCS (Power Conditioning System) 32, a cluster high-voltage box 33 and a circuit breaker 34 arranged in sequence from top to bottom; the temperature control device 40 is arranged in the second placement area 12, and is used to control the temperature in the first placement area 11 and the second placement area 12.

[0026] The energy storage cabinet 100 is provided with a first placement area 11 and a second placement area 12, so that the first placement area 11 can be used for a single battery pack group 20, and the second placement area 12 can be used for placing an electronic control device group 30, so that the battery pack group 20 and the electronic control device group 30 can be arranged separately and integrated on the frame 10 at the same time, so that the entire energy storage cabinet 100 has a high degree of integration; at the same time, by arranging the electrical box 31, PCS 32, cluster high-voltage box 33 and circuit breaker 34 in the electronic control device group 30 from top to bottom in sequence, since the electrical box 31 needs to be electrically connected to the PCS 32, the cluster high-voltage box 33 and the circuit breaker 34 respectively, it is placed at the top, so as to The wiring harnesses of PCS32, cluster high-voltage box 33 and circuit breaker 34 are concentrated and extended upward and then connected to the electrical box 31. The PCS32, cluster high-voltage box 33 and circuit breaker 34 are arranged in sequence from top to bottom to make electrical connections in sequence. The cluster high-voltage box 33 is located in the middle and needs to be electrically connected to each battery pack 21 so that each battery pack 21 can have a shorter lead, which is convenient for line layout. The circuit breaker 34 is set at the bottom to facilitate connection with the mains. By arranging the temperature control device 40 in the second placement area 12, the battery pack 21 and the electronic control device group 30 in the entire frame 10 can be cooled, thereby ensuring the normal use of the electrical devices.

[0027] Specifically, the temperature control device 40 in this embodiment is an integrated device for cooling and heating, and therefore has a certain weight. Figure 1 and Figure 3 In order to facilitate the installation of the temperature control device 40, the temperature control device 40 is arranged between the cluster high-voltage box 33 and the circuit breaker 34. In this way, the temperature control device 40 is arranged above the circuit breaker 34, which can facilitate the placement of the temperature control device 40 with a certain weight on the frame 10. At the same time, when used for heating, since the temperature control device 40 is arranged at a lower position, the hot air flow during heating has the characteristic of rising upward due to its low density, so it is possible to achieve temperature control of the battery pack 21 and the electronic control device group 30 located above. Compared with setting the temperature control device 40 at a higher position, it is avoided that when the temperature control device 40 is used for heating, the rising hot air flow cannot heat the devices located below.

[0028] When installing the temperature control device 40, please refer to Figure 3 The temperature control device 40 is provided with a mounting ear 41 , and the mounting ear 41 is threadedly connected to the frame 10 , thereby ensuring the installation stability of the temperature control device 40 .

[0029] Furthermore, in some embodiments of the present invention, in order to ensure that the humidity in the energy storage cabinet 100 is within an appropriate range, the energy storage cabinet 100 may also be provided with a dehumidifier, which is arranged on one side of the temperature control device 40, that is, the dehumidifier and the temperature control device 40 are arranged at the same level, and can be used to absorb the moisture in the air in the energy storage cabinet 100 when the air humidity in the energy storage cabinet 100 is high, so as to avoid the risk of short circuit caused by the deposition of a large amount of moisture on various electrical components.

[0030] Understandably, see Figure 1 and Figure 2 In order to ensure the safety of the energy storage cabinet 100 in an emergency, the energy storage cabinet 100 also includes a fire-fighting device 60, which is arranged between the electrical box 31 and the PCS 32. In this way, by setting the fire-fighting device 60, it is used to extinguish a fire when a fire suddenly breaks out in the energy storage cabinet 100, thereby ensuring the safety of the use of the energy storage cabinet 100; at the same time, the fire-fighting device is arranged between the electrical box 31 and the PCS 32, that is, the fire-fighting device 60 is arranged in a higher area, and the fire-extinguishing agent can be directly sprayed to the battery pack 21 located on one side and the PCS 32, the cluster high-voltage box 33 and the circuit breaker 34 located below to extinguish the fire, thereby having a higher fire-fighting efficiency.

[0031] Specifically, the fire-fighting device 60 of this embodiment includes a fire extinguishing box 61 and a smoke detection sensor 62. The fire extinguishing box 61 is used to store fire-extinguishing gas, and the smoke detection sensor 62 is used to detect combustion smoke. In this way, by setting the smoke detection sensor 62, the burning gas in the frame 10 can be quickly detected, so that the fire extinguishing box 61 can be quickly opened to extinguish the fire, so as to extinguish the fire in the first time, thereby fully ensuring the safety of the energy storage cabinet 100.

[0032] The fire extinguishing gas stored in the fire extinguishing box 61 in this embodiment is perfluoroacetone, and after the perfluoroacetone is sprayed, it does not affect the subsequent reuse of the battery pack 21. In other embodiments, the fire extinguishing gas can also be set to heptafluoropropane.

[0033] See also Figure 1 and Figure 2 In the present embodiment, the battery pack 21 is configured as an air-cooled battery pack, and the air-cooled battery pack can drive the airflow to flow from the front side to the rear side of the frame 10. In this way, when the airflow is driven to flow from the front side to the rear side of the frame 10, the airflow circulation in the frame 10 can be realized, and the flow of the airflow takes away the heat in the battery pack 21; at the same time, by configuring the battery pack 21 as an air-cooled battery pack 21, relative to the liquid-cooled battery pack 21, the cooling method of the battery pack 21 is simple, does not require complicated liquid cooling pipelines, avoids the installation of expensive liquid cooling plates, and also omits the liquid cooling air-conditioning unit, so that the entire battery pack 21 has the advantage of a lower price.

[0034] When the air-cooled battery pack 21 is set, the driving fan is installed on the front side of the box of the battery pack 21, and the airflow flows out from the rear side of the box, that is, the air inlet 22 is set on the front side of the battery pack 21, and the air outlet 23 is set on the rear side of the battery pack 21. For example, it can be set as a box-type battery pack 21 structure as described in CN218456111U.

[0035] See also Figure 1 and Figure 2 In order to facilitate the cooling of the electrical control device group 30 such as the electrical box 31, PCS32, cluster high-voltage box 33 and circuit breaker 34 in the frame 10, when the electrical box 31, PCS32, cluster high-voltage box 33 and circuit breaker 34 are installed, the frame 10 includes a plurality of separated vertical rods 13 and a plurality of separated support frames 14. The plurality of support frames 14 are respectively connected to the vertical rods 13. The support frames 14 are used to support the battery pack 21, the electrical box 31, PCS32, cluster high-voltage box 33, circuit breaker 34 and temperature control device 40. In this way, the frame arranged in a rod-like manner has a large gap with the components, which can facilitate the flow of air and thus bring out the heat.

[0036] Furthermore, in order to ensure the support strength of the support frame 70, the support frame 70 can be configured to include a plurality of support rods 71 ​​arranged perpendicularly to each other, so that it not only has an appropriate support contact area with the electronic control device group 30, but also has a stronger support strength.

[0037] In order to ensure the overall structural strength of the frame 10, the frame 10 also includes a plurality of reinforcing plates 16, each of which is connected to one end of a vertical rod 13 and a support frame 14. By setting the reinforcing plates 16, the frame 10 can be easily ventilated and heat-dissipated while increasing the structural strength of the entire frame 10.

[0038] Furthermore, since the circuit breaker 34 located at the bottom needs to be connected to the AC power through a wiring harness, in order to facilitate the arrangement of the wiring harness, the frame 10 also includes a baffle 15, which is arranged on the front side of the frame 10 and at the lower end of the frame 10, and is used to shield the wiring harness, that is, the wiring harness can extend along the baffle 15 and be shielded by the file to ensure the orderliness of the wiring harness.

[0039] Among them, the storage capacity of a single battery pack 21 of this embodiment is 13.44KW, and 8 battery packs 21 are provided, so the power output of the Zhengege energy storage cabinet 100 of this embodiment is 107.52KW.

[0040] The energy storage cabinet 100 mentioned above saves the installation of a liquid cooling unit by setting the battery pack 21 to be air-cooled, compared with the liquid-cooled method, thereby saving costs. At the same time, the air-cooled battery pack 21 has a simpler installation structure than the liquid-cooled battery pack 21. By setting the fire-fighting device 60, it is convenient to extinguish the fire in the energy storage cabinet 100 in an emergency.

[0041] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. An energy storage cabinet (100), characterized in that: include: A frame (10), wherein the frame (10) has a first placement area (11) and a second placement area (12) arranged in parallel; A battery pack group (20) comprising a plurality of battery packs (21), wherein the plurality of battery packs (21) are arranged in sequence from top to bottom in the first placement area (11); An electric control device group (30) is arranged in the second placement area (12), and includes an electrical box (31), a PCS (32), a cluster high-voltage box (33) and a circuit breaker (34) arranged in order from top to bottom; A temperature control device (40) is arranged in the second placement area (12) and is used to control the temperature of the first placement area (11) and the second placement area (12).

2. The energy storage cabinet (100) according to claim 1, characterized in that: The temperature control device (40) is arranged between the cluster high-voltage box (33) and the circuit breaker (34).

3. The energy storage cabinet (100) according to claim 1 or 2, characterized in that: The temperature control device (40) is provided with a mounting ear (41), and the mounting ear (41) is threadedly connected to the frame (10).

4. The energy storage cabinet (100) according to claim 1 or 2, characterized in that: The battery pack (21) is an air-cooled battery pack, and the air-cooled battery pack is capable of driving airflow to flow from the front side to the rear side of the frame (10).

5. The energy storage cabinet (100) according to claim 1 or 2, characterized in that: The energy storage cabinet (100) further comprises a fire-fighting device (60), wherein the fire-fighting device (60) is arranged between the electrical box (31) and the PCS (32).

6. The energy storage cabinet (100) according to claim 5, characterized in that: The fire-fighting device (60) comprises a fire-extinguishing box (61) and a smoke detection sensor (62); the fire-extinguishing box (61) is used to store fire-extinguishing gas, and the smoke detection sensor (62) is used to detect combustion smoke.

7. The energy storage cabinet (100) according to claim 6, characterized in that: The fire extinguishing gas is perfluoroacetone.

8. The energy storage cabinet (100) according to claim 1 or 2, characterized in that: The frame (10) comprises a plurality of vertical rods (13) arranged separately and a plurality of support frames (14) arranged separately, wherein the plurality of support frames (14) are respectively connected to the vertical rods (13), and the support frames (14) are used to support the battery pack (21), the electrical box (31), the PCS (32), the cluster high-voltage box (33), the circuit breaker (34) and the temperature control device (40).

9. The energy storage cabinet (100) according to claim 8, characterized in that: The support frame (14) comprises a plurality of support rods (141) arranged perpendicular to each other.

10. The energy storage cabinet (100) according to claim 8, characterized in that: The frame body (10) further comprises a plurality of reinforcing plates (16), each of the reinforcing plates (16) being connected to the vertical rod (13) and one end of one of the supporting frames (14).

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