Battery cabinet and cabinet type energy storage system

Abstract

The utility model discloses a battery cabinet and a cabinet type energy storage system, the battery cabinet comprises a cabinet body and at least one heat insulation plate, the cabinet is provided with a battery cavity and an electric control cavity located below the battery cavity, and the cabinet is provided with a first ventilation opening and a second ventilation opening. The first ventilation opening and the second ventilation opening are formed in the two opposite sides of the electric control cavity correspondingly and communicate with the electric control cavity. The heat insulation plate is vertically installed in the electric control cavity so as to divide the electric control cavity into a plurality of vertical cavities in the width direction of the cabinet, and the heat insulation plate extends from the first ventilation opening to the second ventilation opening. According to the technical scheme, the structure compactness of the electric control cavity can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, and particularly relates to a battery cabinet and a cabinet-type energy storage system. Background Art

[0002] With the continuous development of energy storage technology, energy storage systems are more and more widely used. At present, cabinet-type energy storage systems are widely used. In some cabinets, in order to make the width of the cabinet smaller, generally, modules such as multiple battery boxes, high-voltage boxes and energy storage inverters are stacked vertically in sequence. In this structure, generally, the height of each layer is relatively large, so that there is a gap between any installed module and the upper module to reduce heat transfer between adjacent modules. However, such a structure is not compact enough, resulting in a relatively high cabinet height or a limited number of battery boxes. Summary of the Utility Model

[0003] The main purpose of the utility model is to propose a battery cabinet, aiming to improve the compactness of the electric control cavity structure.

[0004] To achieve the above object, the battery cabinet proposed by the utility model includes:

[0005] A cabinet, having a battery cavity and an electric control cavity located below the battery cavity. The cabinet is provided with a first ventilation opening and a second ventilation opening, and the first ventilation opening and the second ventilation opening are respectively arranged on opposite sides of the electric control cavity and are both communicated with the electric control cavity; and

[0006] At least one heat insulation board, which is vertically installed in the electric control cavity to divide the electric control cavity into a plurality of vertical chambers in the width direction of the cabinet, and the heat insulation board extends from the first ventilation opening towards the second ventilation opening.

[0007] Optionally, the battery cabinet includes at least two heat insulation boards, and the heat insulation boards are arranged at intervals in the width direction of the cabinet to divide the electric control cavity into at least three vertical chambers in the width direction of the cabinet.

[0008] Optionally, the battery cabinet further includes a wind guide tube, one end of the wind guide tube is communicated with the vertical chamber between two adjacent heat insulation boards, and the other end extends to the second ventilation opening; or,

[0009] The heat insulation board extends from the first ventilation opening to the second ventilation opening.

[0010] Optionally, the cabinet includes a cabinet body, a first cabinet door and a second cabinet door. The first cabinet door is installed on the front side of the cabinet body and is provided with the first ventilation opening, and the second cabinet door is installed on the rear side of the cabinet body and is provided with the second ventilation opening.

[0011] Optionally, the cabinet further has an installation cavity located between the battery cavity and the electronic control cavity, and the installation cavity is used for installing a liquid cooling module.

[0012] Optionally, the cabinet body is provided with a first opening, a third opening and a fourth opening. The first opening is communicated with the installation cavity. The third opening is located below the first opening. Both the electronic control cavity and the installation cavity are communicated with the third opening. The fourth opening is opposite to the third opening. Both the electronic control cavity and the installation cavity are communicated with the fourth opening. The first cabinet door covers the first opening and the third opening, and the second cabinet door covers the fourth opening.

[0013] Optionally, a heat insulation layer is provided at the position of the first cabinet door corresponding to the first opening.

[0014] Optionally, sealing rubber rings are provided at the peripheries of the first opening, the third opening and the fourth opening.

[0015] Optionally, two vertical air guiding plates are provided in the installation cavity. The two vertical air guiding plates are spaced apart to form an air guiding channel. One end of the air guiding channel is used for communicating with the heat dissipation outlet of the liquid cooling module, and the other end extends to the second ventilation opening.

[0016] The present utility model further provides a cabinet-type energy storage system, including a high-voltage box, an energy storage inverter, a plurality of battery boxes and the battery cabinet as described above. The plurality of battery boxes are arranged in the battery cavity of the battery cabinet. At least two vertical chambers are formed in the electronic control cavity of the battery cabinet, and the high-voltage box and the energy storage inverter are respectively arranged in one of the vertical chambers.

[0017] The technical solution of the present utility model is to arrange the electronic control cavity below the battery cavity, and vertically install at least one heat insulation plate in the electronic control cavity. The heat insulation plate divides the electronic control cavity into a plurality of vertical chambers in the width direction of the cabinet, and the heat insulation plate extends from the first ventilation opening on one side of the cabinet to the second ventilation opening on the other side of the cabinet. With such an arrangement, modules such as the high-voltage box can be directly supported by the bottom wall of the cabinet without the need for the heat insulation plate to support, so the installation structure requirements for the heat insulation plate are not high, and even the heat insulation plate does not need to be connected to the cabinet body, which can simplify the structure of the heat insulation plate while ensuring the heat insulation performance as much as possible. And the heat insulation plate can be flexibly set according to actual needs, and the heat insulation plate can be made to be as close as possible to modules such as the high-voltage box to make full use of the space of the electronic control cavity, improve the structural compactness of the electronic control cavity, and is beneficial to reducing the height of the cabinet body or increasing the accommodation quantity of the battery boxes at the same height. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the structures shown in these drawings.

[0019] Figure 1 Structural schematic diagram of an embodiment of the battery cabinet of the present invention;

[0020] Figure 2 For Figure 1 Structural schematic diagram when the hidden back panel of the battery cabinet in [X] is opened and the second cabinet door is opened;

[0021] Figure 3 For Figure 2 Enlarged view of part A in [X];

[0022] Figure 4 For Figure 2 Enlarged view of part B in [X];

[0023] Figure 5 For Figure 1 Structural schematic diagram of the back panel in [X];

[0024] Figure 6 For Figure 5 Enlarged view of part C in [X];

[0025] Figure 7 For Figure 1 Schematic diagram of another angle of the battery cabinet in [X];

[0026] Figure 8 For Figure 7 Enlarged view of part D in [X];

[0027] Figure 9 Structural schematic diagram of an embodiment of the cabinet-type energy storage system of the present invention.

[0028] Explanation of the reference numerals in the drawings:

[0029] 10, cabinet body; 11, battery chamber; 12, electronic control chamber; 13, installation chamber; 101, first opening; 102, second opening; 103, third opening; 104, fourth opening; 14, connecting part; 143, first through hole; 20, first cabinet door; 21, first ventilation opening; 30, second cabinet door; 31, second ventilation opening; 40, back panel; 41, mounting member; 411, second through hole; 412, groove; 421, stud; 43, sealing ring; 51, support plate; 52, support frame; 61, heat insulation plate; 62, air guide cylinder; 63, vertical air guide plate; 71, battery box; 72, high-voltage box; 73, energy storage inverter; 74, electronic control module; 81, liquid cooling module.

[0030] The realization, functional features, and advantages of the present utility model will be further described in conjunction with embodiments and with reference to the accompanying drawings. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0032] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0033] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0034] The present utility model provides a battery cabinet.

[0035] In the embodiments of the present utility model, as Figures 1 to 9 shown, the battery cabinet includes a cabinet body, the cabinet body has a battery chamber 11 and an electrical control chamber 12. The battery chamber 11 is used for installing a battery box 71, and the electrical control chamber 12 is used for installing a circuit device. Optionally, the circuit device includes at least one of a high-voltage box 72, an energy storage inverter 73, and a control module (including a circuit breaker, a control circuit, etc.).

[0036] In some embodiments, the cabinet includes a cabinet body 10, a first cabinet door 20, and a back panel 40. The cabinet body 10 has a battery cavity 11, a first opening 101, and a second opening 102. The first opening 101 and the second opening 102 are respectively provided on opposite sides of the cabinet body 10 and are both communicated with the battery cavity 11. A plurality of connecting portions 14 are provided on the periphery of the second opening 102, and a battery mounting rack is provided in the battery cavity 11.

[0037] The first cabinet door 20 is rotatably mounted at the first opening 101 and has a closed state of covering the first opening 101 and an open state of opening the first opening 101.

[0038] The back panel 40 is integrally formed with the cabinet body 10 and covers the second opening 102. A sealing structure is provided between the back panel 40 and the periphery of the second opening 102, and a connecting structure is provided on the inner side of the back panel 40 corresponding to the position of the connecting portion 14.

[0039] Wherein, the connecting portion 14 and the battery mounting rack are staggeredly arranged in the direction from the first opening 101 to the second opening 102, so that the connecting structure on the back panel 40 can be fixedly connected to the connecting portion 14 through the first opening 101.

[0040] Specifically, during production, the cabinet body 10, the first cabinet door 20, and the back panel 40 can be formed separately. Since the first opening 101 and the second opening 102 are provided on opposite sides of the cabinet body 10, it can not only better ensure the sealing performance of the cabinet body 10, but also reduce the production difficulty, thereby reducing the production cost. When the connecting portion 14 and the battery mounting rack are staggeredly arranged in the direction from the first opening 101 to the second opening 102, the connecting portion 14 can be exposed from the first opening 101, avoiding the battery mounting rack blocking the connecting portion 14. Thus, when fixing the back panel 40, the connecting structure on the back panel 40 can be fixedly connected to the connecting portion 14 through the first opening 101. In this way, the connecting portions 14 of the back panel 40 and the cabinet body 10 are located inside the cabinet body 10, preventing others from disassembling the back panel 40 from the outside. Since the back panel 40 and the cabinet body 10 are fixedly assembled, there are many types of sealing structures to choose from, and it is easy to ensure the sealing performance.

[0041] The technical solution of the utility model is to set a first opening 101 and a second opening 102 relative to each other on the cabinet 10, set a first cabinet door 20 at the first opening 101, and seal the second opening 102 by a cover plate, so that it is easy to form the cabinet 10, and the cost can be reduced while the sealing of various parts of the cabinet 10 can be better. Since the connection structure is set on the inner side of the cover plate, it is connected and fixed with the connection part 14 in the cabinet 10 through the connection structure, which avoids the situation of setting screw holes between the cabinet 10 and the cover plate, and can improve the sealing of the cover plate and the cabinet 10. At the same time, there are more optional forms of the sealing structure between the cabinet 10 and the cover plate, which is more conducive to ensuring the sealing between the cabinet 10 and the cover plate. Thereby, it is easy to form the cabinet 10, reduce the production cost of the battery cabinet, improve the waterproofness of the battery cabinet, and reduce the risk of water entering the battery cavity 11.

[0042] In some embodiments, the connection portion 14 is provided with a first through hole 143, the connection structure has a stud 421, and the battery cabinet further includes a locking nut, the stud 421 passes through the first through hole 143, the locking nut is screwed on the stud 421, and is located on the side of the connection portion 14 away from the back plate 40. That is, each connection portion 14 is provided with a first through hole 143, and the connection structure is provided with a stud 421 corresponding to each first through hole 143. During installation, each stud 421 passes through the corresponding first through hole 143 one by one, and then the locking nut is locked on the stud 421 in the battery cavity 11 through the first opening 101, so that the cover plate is fixed to the cabinet 10. Such a structure is simple, easy to install, and can make the cover plate firmly fixed, reducing the risk of the cover plate loosening. Of course, in other embodiments, the connection structure is provided with a buckle or a rivet to be clamped or riveted on the connection portion 14. The connection structure can also be welded and fixed to the connection portion 14.

[0043] In some embodiments, the connection structure includes a mounting member 41 and a threaded member. The mounting member 41 is installed on the inner side of the back plate 40. The mounting member 41 is provided with a plurality of second through holes 411. The threaded member includes a stud 421 and a limiting portion provided at one end of the stud 421. The stud 421 is passed through the second through hole 411, and the limiting portion is located on the side of the mounting member 41 facing the back plate 40. Specifically, the size of the limiting portion is larger than the diameter of the first through hole 143. In this way, the connection area between the mounting member 41 and the cover plate can be larger, and the structural strength of the cover plate can be strengthened by the mounting member 41, thereby reducing the risk of deformation of the cover plate under stress. Moreover, during installation, multiple threaded members can be uniformly provided in the second through hole 411 without fixing the threaded members one by one, which is convenient for installation. Among them, the mounting member 41 and the back plate 40 can be welded or fixed by screws.

[0044] In some embodiments, the connection structure includes a plurality of mounting members 41. The plurality of mounting members 41 are arranged in one-to-one correspondence with the respective side edges of the first opening 101. A plurality of second through holes 411 are provided on each mounting member 41, and each second through hole 411 is provided with a threaded member. In this way, straight-strip mounting members 41 can be used for installation, which can simplify the structure of the mounting members 41 and is beneficial to reducing the production difficulty and cost.

[0045] In some embodiments, a groove 412 is provided on the side of the mounting member 41 facing the back plate 40. The plurality of second through holes 411 on the mounting member 41 are all located in the groove 412, and the limiting portion is located in the groove 412. In this way, the limiting portion can be received through the groove 412, enabling the mounting member 41 to be in full contact with the cover plate and improving the connection stability between the cover plate and the mounting member 41.

[0046] In some embodiments, the connecting portion 14 includes a fixing plate and a connecting plate that are perpendicularly connected to each other. The fixing plate is connected to the cabinet body 10, and the connecting plate is provided with a first through hole 143. That is, the connecting portion 14 can be integrally formed with the cabinet body 10 separately. During installation, the fixing plate is welded to the cabinet body 10. In this way, the structure of the connecting portion 14 is simple, and the installation position of the connecting portion 14 is relatively flexible, facilitating installation according to the actual situation of the cabinet body 10.

[0047] In some embodiments, the sealing structure includes at least one sealing ring 43. The sealing ring 43 is disposed around the first opening 101 and abuts between the first opening 101 and the back plate 40. Specifically, the sealing ring 43 is disposed outside the connection structure. The material of the sealing ring 43 can be rubber or silica gel. During installation, the sealing ring 43 can be first bonded to the periphery of the first opening 101, or the sealing ring 43 can be first bonded to the back plate 40 and then the back plate 40 is installed. In this way, no additional installation structure needs to be provided at the periphery of the first opening 101 and the back plate 40, which can simplify the structures of the cabinet body 10 and the back plate 40 and reduce the production cost of the battery cabinet. Of course, in other embodiments, the sealing structure is disposed on the cabinet body 10 or the back plate 40 and has an annular groove 412, and a sealing glue is provided in the annular groove 412.

[0048] In some embodiments, the battery cavity 11 has two opposite cavity side walls. The battery mounting rack includes a plurality of support plates 51. A plurality of support plates 51 are provided on both cavity side walls. The plurality of support plates 51 on the same cavity side wall are spaced apart in the up and down direction, and the plurality of support plates 51 on the two cavity side walls are opposite to each other to form a battery placement position on the opposite support plates 51 on the two cavity side walls; the connecting portion 14 is disposed corresponding to the position between two adjacent support plates 51. That is, when installing the battery box 71, one side of the bottom of the battery box 71 is supported on the support plate 51 of one cavity side wall, and the other side of the bottom of the battery box 71 is supported on the support plate 51 of the other cavity side wall. In this way, the structure of the battery mounting rack is simple and the weight is relatively light, which is beneficial to reducing the weight of the battery cabinet.

[0049] In some embodiments, the battery mounting rack further includes a plurality of support frames 52, which are fixed to the cabinet body 10 and located below the support plate 51 to support the support plate 51. This can improve the support stability of this plate.

[0050] In some embodiments, the cabinet body 10 further has an electric control cavity 12, an installation cavity 13, and a third opening 103. The electric control cavity 12 is located below the battery cavity 11, the installation cavity 13 is located between the battery cavity 11 and the electric control cavity 12, the installation cavity 13 is used for installing the liquid cooling module 81, and the electric control cavity 12 is used for installing the circuit device; the third opening 103 is located below the first opening 101 and communicates with the installation cavity 13 and the electric control cavity 12. When the first cabinet door 20 is in the closed state, it covers the first opening 101 and the third opening 103. In this way, the first cabinet door 20 can cover or open the first opening 101 and the third opening 103 at the same time, which is convenient for maintenance, can also reduce the number of cabinet doors, and simplifies the structure of the battery cabinet.

[0051] In some embodiments, the cabinet body 10 further has a fourth opening 104, the fourth opening 104 is located below the second opening 102 and communicates with the installation cavity 13 and the electric control cavity 12. The battery cabinet further includes a second cabinet door 30, and the second cabinet door 30 is rotatably installed at the fourth opening 104 to cover or open the fourth opening 104. In this way, during actual use, the liquid cooling module 81 and the circuit device can be repaired and maintained by opening the second cabinet door 30.

[0052] In some embodiments, the first cabinet door 20 is provided with a first ventilation opening 21 at the positions corresponding to the installation cavity 13 and the electric control cavity 12, and the second cabinet door 30 is provided with a second ventilation opening 31 at the positions corresponding to the installation cavity 13 and the electric control cavity 12, so as to facilitate heat dissipation of the electric control cavity 12 and the installation cavity 13.

[0053] In some embodiments, the cabinet has a battery cavity 11 and an electric control cavity 12 located below the battery cavity 11. The cabinet is provided with a first ventilation opening 21 and a second ventilation opening 31. The first ventilation opening 21 and the second ventilation opening 31 are respectively arranged on opposite sides of the electric control cavity 12 and are both communicated with the electric control cavity 12; the battery cabinet further includes at least one heat insulation plate 61, and the heat insulation plate 61 is vertically installed in the electric control cavity 12 to divide the electric control cavity 12 into a plurality of vertical chambers in the width direction of the cabinet, and the heat insulation plate 61 extends from the first ventilation opening 21 towards the second ventilation opening 31.

[0054] Specifically, the vertical chamber is used to install modules such as the high-voltage box 72 and the energy storage converter 73. The heat insulation plate 61 is integrally formed with the cabinet, that is, during installation, the installation position of the heat insulation plate 61 in the electric control chamber 12 can be rotated according to actual needs. Since modules such as the high-voltage box 72 and the energy storage converter 73 are directly supported by the bottom of the cabinet when installed in the vertical chamber and do not require the support of the heat insulation plate 61, the requirements for the installation structure of the heat insulation plate 61 are not high. Even the heat insulation plate 61 does not need to be connected to the cabinet body 10, and the heat insulation plate 61 can be separated between adjacent two modules. Among them, the heat insulation plate 61 can be made of heat insulation materials such as heat insulation foam.

[0055] In the technical solution of the present utility model, the electric control chamber 12 is arranged below the battery chamber 11, and at least one heat insulation plate 61 is vertically installed in the electric control chamber 12. The heat insulation plate 61 is used to divide the electric control chamber 12 into multiple vertical chambers in the width direction of the cabinet, and the heat insulation plate 61 extends from the first ventilation opening 21 on one side of the cabinet to the second ventilation opening 31 on the other side of the cabinet. By such setting, modules such as the high-voltage box 72 can be directly supported by the bottom wall of the cabinet without the support of the heat insulation plate 61. Therefore, the requirements for the installation structure of the heat insulation plate 61 are not high. Even the heat insulation plate 61 does not need to be connected to the cabinet body 10, which can simplify the structure of the heat insulation plate 61 and ensure the heat insulation performance as much as possible. And the heat insulation plate 61 can be flexibly set according to actual needs, so that the heat insulation plate 61 can be as close as possible to modules such as the high-voltage box 72, so as to make full use of the space of the electric control chamber 12, improve the structural compactness of the electric control chamber 12, and is beneficial to reducing the height of the cabinet body 10 or increasing the accommodation quantity of the battery box 71 at the same height.

[0056] In some embodiments, the battery cabinet includes at least two heat insulation plates 61, and the heat insulation plates 61 are arranged at intervals in the width direction of the cabinet to divide the electric control chamber 12 into at least three vertical chambers in the width direction of the cabinet. In this way, the number of vertical chambers can be relatively large, so that multiple modules can be installed respectively. For example, in some embodiments, the number of heat insulation plates 61 is two, so as to divide the electric control chamber 12 into three vertical chambers, one of which is used to install the high-voltage box 72, one is used to install the energy storage converter 73, and one is used to install the electric control module 74.

[0057] In some embodiments, the battery cabinet further includes an air guide cylinder 62. One end of the air guide cylinder 62 is communicated with the vertical chamber between the two heat insulation plates 61, and the other end extends to the second ventilation opening 31. After the air guide cylinder 62 is installed corresponding to the middle vertical chamber in this way, air ducts corresponding to the two side vertical chambers can be formed between the air guide cylinder 62 and the two side walls of the cabinet, which can reduce the number of components of the battery cabinet and reduce the installation process. At the same time, the size of the heat insulation plate 61 can be reduced.

[0058] Of course, in other embodiments, the heat insulation plate 61 extends from the first ventilation opening 21 to the second ventilation opening 31. This can reduce the number of components of the battery cabinet and simplify the installation process.

[0059] In some embodiments, the cabinet includes a cabinet body 10, a first cabinet door 20 and a second cabinet door 30. The first cabinet door 20 is installed on the front side of the cabinet body 10 and is provided with a first ventilation opening 21. The second cabinet door 30 is installed on the rear side of the cabinet body 10 and is provided with a second ventilation opening 31. In this way, air can enter through one of the first ventilation opening 21 and the second ventilation opening 31 and exit through the other, which is convenient for the heat dissipation of the electronic control cavity 12. And setting the ventilation openings on the cabinet doors can simplify the structure of the cabinet body 10.

[0060] In some embodiments, the cabinet further has an installation cavity 13. The installation cavity 13 is located between the battery cavity 11 and the electronic control cavity 12, and the installation cavity 13 is used for installing the liquid cooling module 81. By arranging the installation cavity 13 between the electronic control cavity 12 and the battery cavity 11, during use, the liquid cooling module 81 can be closer to the battery box 71, which can reduce the pipeline length, reduce energy loss, and improve the heat dissipation effect.

[0061] In some embodiments, the cabinet body 10 is provided with a first opening 101, a third opening 103 and a fourth opening 104. The first opening 101 is communicated with the installation cavity 13. The third opening 103 is located below the first opening 101, and both the electronic control cavity 12 and the installation cavity 13 are communicated with the third opening 103. The fourth opening 104 is opposite to the third opening 103, and both the electronic control cavity 12 and the installation cavity 13 are communicated with the fourth opening 104. The first cabinet door 20 covers the first opening 101 and the third opening 103, and the second cabinet door 30 covers the fourth opening 104.

[0062] In some embodiments, a heat insulation layer is provided at the position of the first cabinet door 20 corresponding to the first opening 101, and the back plate 40 is provided with a heat insulation layer. This can reduce the influence of the ambient temperature on the battery box 71 in a high-temperature environment (such as a sunny day outdoors in summer). Optionally, heat insulation structures are provided on the top and sides of the cabinet body 10.

[0063] In some embodiments, sealing rubber rings are provided at the peripheries of the first opening 101, the third opening, and the fourth opening 104. This can improve the sealing performance between the first cabinet door 20 and the cabinet body 10, reduce the risk of water entering the cabinet body 10, and has a simple structure and low cost.

[0064] In some embodiments, two vertical air guiding plates 63 are provided in the installation cavity 13. The two vertical air guiding plates 63 are spaced apart to form an air guiding channel. One end of the air guiding channel is used to communicate with the heat dissipation outlet of the liquid cooling module 81, and the other end extends to the second ventilation opening 31. This enables the hot air after passing through the liquid cooling module 81 to be directly sent out from the second ventilation opening 31, avoiding reflux into the cabinet body 10 and improving the heat dissipation effect.

[0065] The present utility model further provides a cabinet - type energy storage system, which includes a battery box 71 and a battery cabinet. The specific structure of the battery cabinet refers to the above - mentioned embodiments. Since this cabinet - type energy storage system adopts all the technical solutions of the above - mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above - mentioned embodiments, which will not be elaborated one by one here. Among them, the battery box 71 is arranged in the battery cavity 11 of the battery cabinet. Optionally, the number of battery boxes 71 is multiple, and multiple battery boxes 71 are all arranged in the battery cavity 11 of the battery cabinet.

[0066] In some embodiments, the cabinet - type energy storage system further includes a high - voltage box 72 and an energy storage converter 73. At least two vertical chambers are formed in the electric control cavity 12 of the battery cabinet, and the high - voltage box 72 and the energy storage converter 73 are respectively arranged in one vertical chamber.

[0067] In some embodiments, the cabinet - type energy storage system further includes a liquid - cooling system, a circuit device, and multiple battery boxes 71. The battery cabinet includes a cabinet body, which has a battery cavity 11, an electric control cavity 12, and an installation cavity 13 located between the battery cavity 11 and the electric control cavity 12. A plurality of battery positions are provided in the battery cavity 11 in the up - and - down direction; each battery box 71 is horizontally placed corresponding to one battery position, and each is provided with a liquid - cooling flow channel; the liquid - cooling system includes a liquid supply pipe, a liquid return pipe, and a liquid - cooling module 81. The liquid - cooling module 81 is horizontally placed in the installation cavity 13 and is connected to the liquid - cooling flow channels of the battery boxes 71 through the liquid supply pipe and the liquid return pipe. The liquid supply pipe and the liquid return pipe are respectively arranged on opposite sides of the battery cavity 11; the circuit device is arranged in the electric control cavity 12, and the circuit device is connected to the battery boxes 71 and the liquid - cooling module 81.

[0068] Specifically, one end of the liquid supply pipe is communicated with the liquid outlet of the liquid - cooling module 81. A plurality of liquid supply branch pipes are arranged on the liquid supply pipe, and each liquid supply branch pipe is correspondingly connected to the inlet end of the liquid - cooling flow channel of one battery box 71. One end of the liquid return pipe is communicated with the liquid return port of the liquid - cooling module 81. A plurality of liquid return branch pipes are arranged on the liquid return pipe, and each liquid return branch pipe is correspondingly connected to the outlet end of the liquid - cooling flow channel of one battery box 71.

[0069] Through the technical solution of the present utility model, by sequentially arranging the battery cavity 11, the installation cavity 13, and the electric control cavity 12 from top to bottom in the cabinet body and installing the liquid - cooling module 81 in the installation cavity 13, the distance between the liquid - cooling module 81 and the installation cavity 13 can be made relatively close, which can shorten the pipeline length between the liquid - cooling module 81 and the battery cavity 11, thereby facilitating the reduction of the loss of the coolant during the flow process. At the same time, a plurality of vertically - distributed battery positions are arranged in the battery cavity 11, each battery box 71 is horizontally placed corresponding to one battery position, and the liquid supply pipe and the liquid return pipe are respectively arranged on opposite sides of the battery cavity 11. In this way, the lengths of both the liquid supply pipe and the liquid return pipe can be shorter, which can reduce the loss of the coolant during the flow process, enable the coolant to fully exchange heat with the battery box 71, and improve the heat - dissipation effect on the battery box 71.

[0070] In some embodiments, two heat insulation plates 61 are vertically arranged in the electric control cavity 12, and the two heat insulation plates 61 are arranged at intervals in the width direction of the cabinet to divide the electric control cavity 12 into three vertical chambers. The circuit device includes a high-voltage box 72, an energy storage converter 73 and a control module, and the high-voltage box 72, the energy storage converter 73 and the control module are respectively arranged in one vertical chamber.

[0071] Optionally, one of the high-voltage box 72 and the energy storage converter 73 is arranged in the vertical chamber between the two heat insulation plates 61. The cabinet further includes an air guide cylinder 62, one end of the air guide cylinder 62 is communicated with the vertical chamber between the two heat insulation plates 61, and the other end extends to the fourth opening 104.

[0072] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A battery cabinet, characterized in that: include: A cabinet having a battery cavity and an electric control cavity located below the battery cavity, wherein the cabinet is provided with a first vent and a second vent, wherein the first vent and the second vent are respectively arranged on opposite sides of the electric control cavity and are both communicated with the electric control cavity; as well as At least one heat insulation board is vertically installed in the electric control cavity to divide the electric control cavity into a plurality of vertical chambers in the width direction of the cabinet, and the heat insulation board extends from the first vent toward the second vent.

2. The battery cabinet according to claim 1, characterized in that: The battery cabinet includes at least two thermal insulation boards, and the thermal insulation boards are arranged at intervals in the width direction of the cabinet to divide the electric control cavity into at least three vertical chambers in the width direction of the cabinet.

3. The battery cabinet according to claim 2, characterized in that: The battery cabinet further comprises an air duct, one end of which is connected to the vertical chamber between two adjacent heat insulation boards, and the other end of which extends to the second vent; or, The heat insulation board extends from the first vent to the second vent.

4. The battery cabinet according to claim 1, characterized in that: The cabinet includes a cabinet body, a first cabinet door and a second cabinet door. The first cabinet door is installed at the front side of the cabinet body and is provided with the first vent. The second cabinet door is installed at the rear side of the cabinet body and is provided with the second vent.

5. The battery cabinet according to claim 4, characterized in that: The cabinet also has an installation cavity, which is located between the battery cavity and the electronic control cavity, and is used to install a liquid cooling module.

6. The battery cabinet according to claim 5, characterized in that: The cabinet body is provided with a first opening, a third opening and a fourth opening, the first opening is communicated with the installation cavity, the third opening is located below the first opening, the electric control cavity and the installation cavity are both communicated with the third opening, the fourth opening is opposite to the third opening, the electric control cavity and the installation cavity are both communicated with the fourth opening; the first cabinet door covers the first opening and the third opening, and the second cabinet door covers the fourth opening.

7. The battery cabinet according to claim 6, characterized in that: A heat insulation layer is provided at a position of the first cabinet door corresponding to the first opening.

8. The battery cabinet according to claim 6, characterized in that: The periphery of the first opening, the periphery of the third opening and the periphery of the fourth opening are all provided with sealing rubber rings.

9. The battery cabinet according to claim 5, characterized in that: Two vertical air guide plates are arranged in the installation cavity, and the two vertical air guide plates are spaced apart to form an air guide channel, one end of the air guide channel is used to communicate with the heat dissipation outlet of the liquid cooling module, and the other end extends to the second vent.

10. A cabinet-type energy storage system, characterized in that: It comprises a high-voltage box, an energy storage inverter, a plurality of battery boxes and a battery cabinet as described in any one of claims 1 to 9, wherein the plurality of battery boxes are arranged in a battery cavity of the battery cabinet, the electric control cavity of the battery cabinet forms at least two vertical chambers, and the high-voltage box and the energy storage inverter are respectively arranged in one of the vertical chambers.

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