Battery cluster frame, battery cluster and energy storage system

Abstract

The utility model belongs to the field of electricity storage and discharge equipment, and particularly relates to a battery cluster frame, a battery cluster and an energy storage system, the battery cluster of the energy storage system comprises the battery cluster frame and a battery pack, and the lower end of a frame body of the battery cluster frame is provided with an insulating supporting piece group. Each insulation supporting piece is provided with an upper connecting end, a lower connecting end and a vertical plate connected between the upper connecting end and the lower connecting end, the vertical plate has the thickness in the horizontal direction, and the vertical plates of the insulation supporting pieces form a vertical plate structure of the insulation supporting piece set. The side plate surface in the thickness direction of the vertical plate of each insulating supporting piece forms the side surface of the vertical plate structure of the insulating supporting piece group, and the side surface of the vertical plate structure has projections in the width direction of the opening of the battery pack mounting bin and the depth direction of the battery pack mounting bin; the length of the vertical plates of the insulation supporting pieces forming the insulation supporting piece set at least has components in the width direction of the opening of the battery pack installation bin and the depth direction of the battery pack installation bin, and therefore it is guaranteed that the battery cluster frame has good shearing resistance and force bearing performance in the two directions.

Description

Technical Field

[0001] This utility model belongs to the field of energy storage and discharge equipment, and in particular relates to a battery cluster frame, a battery cluster, and an energy storage system. Background Technology

[0002] Containerized energy storage systems enable both energy storage and discharge. They consist of a container-like structure and battery clusters housed within it. Each battery cluster includes a frame and a battery pack mounted within that frame, which stores and discharges energy. Containerizing the energy storage system allows for easy transport by vehicle, enhancing its flexibility and ease of use.

[0003] Regarding the structure of battery clusters and battery cluster frames, a Chinese utility model patent with authorization announcement number CN218300055U and authorization announcement date of January 13, 2023 discloses an energy storage battery cluster structure and energy storage system. This energy storage battery cluster structure's battery cluster frame includes a frame and multiple battery rack support members located at the lower end of the frame. The frame has multiple battery pack installation compartments arranged vertically side-by-side. When the energy storage battery cluster structure is used in a cascaded high-voltage energy storage system, the multiple battery rack support members are made of insulating material to form insulating support members, and the battery rack support members have a certain height to ensure the insulation distance between the battery pack and the container-type box bottom plate. Regarding the arrangement of the battery rack support members, specifically, nine battery rack support members are arranged in three rows and three columns on the lower side of the battery cluster frame. Each battery rack support member is an insulating dome beam, including an upper connecting end, a lower connecting end, and a vertical plate connecting the upper and lower connecting ends. The vertical plate has a height in the vertical direction and a length and thickness in the horizontal direction.

[0004] Regarding the installation method of battery clusters within containers, as illustrated in Chinese Utility Model Patent No. CN217740643U, published on November 4, 2022, an energy storage container features a battery pack installation compartment opening directly opposite and close to the side wall along the width direction of the container. This side wall is designed as a door, allowing operators to inspect the battery packs within the battery cluster after opening the door. When transported by vehicle, the length of the container aligns with the vehicle's length, and the width aligns with the vehicle's width. Naturally, the width of the battery pack installation compartment opening aligns with the vehicle's length, and the depth of the battery pack insertion compartment aligns with the vehicle's width. During vehicle acceleration and deceleration, the battery rack support at the bottom of the battery cluster frame is stressed along the width direction of the battery pack installation compartment opening. When the vehicle turns, the battery rack support at the bottom of the battery cluster frame is stressed along the depth direction of the battery pack installation compartment.

[0005] The Chinese utility model patent disclosed in the above-mentioned authorization announcement number CN218300055U, with an authorization announcement date of January 13, 2023, discloses that the length extension direction of each battery rack support component of the energy storage battery cluster structure is consistent, and the length is arranged along the width direction of the battery pack installation compartment opening. This results in the battery rack support component of the energy storage battery cluster structure having weak shear bearing capacity in the vehicle width direction, making it easy for the battery rack support component structure to be damaged when the vehicle turns. Utility Model Content

[0006] The purpose of this invention is to provide a battery cluster frame to solve the technical problem that existing battery cluster frames in energy storage systems cannot simultaneously possess good shear resistance performance in both the width and depth directions of the battery pack installation compartment; the purpose of this invention is also to provide a battery cluster using the above-mentioned battery cluster frame to solve the technical problem that existing battery cluster frames cannot simultaneously possess good shear resistance performance in both the width and depth directions of the battery pack installation compartment; the purpose of this invention is also to provide an energy storage system to solve the technical problem that existing energy storage system battery cluster frames cannot simultaneously possess good shear resistance performance in both the width and depth directions of the battery pack installation compartment.

[0007] To achieve the above objectives, the technical solution for the battery cluster frame provided by this utility model is as follows:

[0008] A battery cluster frame includes a frame body with a battery pack mounting compartment for mounting a battery pack. It also includes an insulating support assembly consisting of multiple insulating support members disposed at the lower end of the frame body. Each insulating support member has an upper connecting end and a lower connecting end, and a vertical plate connecting the upper and lower connecting ends. The upper connecting end is connected to the frame body, and the lower connecting end is used to connect to the housing of an energy storage system using the battery cluster frame. The vertical plate has a thickness in the horizontal direction. The vertical plates of each insulating support member form the vertical plate structure of the insulating support assembly. The side plates of each insulating support member in the thickness direction form the side surface of the vertical plate structure of the insulating support assembly. The side surface of the vertical plate structure has projections in the width direction of the battery pack mounting compartment opening and the depth direction of the battery pack mounting compartment.

[0009] As a further improvement, the length of some insulating support vertical plates extends along the width direction of the battery pack installation compartment opening, while the length of the remaining insulating support vertical plates extends along the depth direction of the battery pack installation compartment. Furthermore, the number of insulating supports with vertical plates extending along the width direction of the battery pack installation compartment opening is greater than the number of insulating supports with vertical plates extending along the depth direction of the battery pack installation compartment.

[0010] As a further improvement, the frame includes two longitudinal beams arranged at intervals along the width of the battery pack installation compartment opening and two transverse beams arranged at intervals along the depth of the battery pack installation compartment, which are located at the lower end of the frame. The two transverse beams and the two longitudinal beams are connected to form a square ring beam. Insulating support members with vertical plates extending along the width of the battery pack installation compartment opening are provided at the four corners of the ring beam. Insulating support members with vertical plates extending along the depth of the battery pack installation compartment are provided at the middle positions of the two longitudinal beams.

[0011] As a further improvement, the frame also includes an intermediate reinforcing beam connected between the middle of the two longitudinal beams, and an insulating support member with a vertical plate extending along the width of the battery pack installation compartment opening is provided on the intermediate reinforcing beam.

[0012] As a further improvement, the vertical plate of the insulating support is provided with multiple layers of skirts arranged at intervals to increase the creepage distance of the insulating support.

[0013] As a further improvement, the frame includes a left upright and a right upright arranged along the width of the battery pack installation compartment opening. A left rail is fixed on the left upright and a right rail is fixed on the right upright. The left and right rails cooperate to support the battery pack, so as to form the battery pack installation compartment on the upper side of the left and right rails. The space between the left and right rails constitutes a clearance space for avoiding the fork arms of the forklift that lifts the battery pack.

[0014] As a further improvement, the left and / or right rails have a downward folding section at one end of the battery pack mounting compartment opening, and the folding section has fixing holes for fixing the battery pack.

[0015] As a further improvement, a wire clip is fixed at the location of the battery pack installation compartment opening on the frame to secure the battery pack connection wires.

[0016] The beneficial effects are as follows: The battery cluster frame in this utility model is an improvement on the structure of the existing battery cluster frame. The side of the vertical plate structure of the battery cluster frame in this utility model is composed of the side plate surfaces in the thickness direction of the vertical plate of each insulating support member. The side of the vertical plate structure has projections in both the width direction of the battery pack installation compartment opening and the depth direction of the battery pack installation compartment. In this way, the length of the vertical plate of the insulating support member group has a component in at least both the width direction of the battery pack installation compartment opening and the depth direction of the battery pack installation compartment. Since the vertical plate of the insulating support member has better shear bearing capacity in the length direction, the insulating support member group has good shear bearing capacity in both the width direction of the battery pack installation compartment opening and the depth direction of the battery pack installation compartment. This solves the technical problem that the existing battery cluster frame cannot have good shear bearing capacity in both the length and width directions of the vehicle carrying the corresponding energy storage system.

[0017] To achieve the above objectives, the technical solution for the battery cluster provided by this utility model is as follows:

[0018] A battery cluster includes a battery cluster frame and a battery pack installed within the battery cluster frame. The battery cluster frame includes a frame body with a battery pack mounting compartment for mounting the battery pack. It also includes an insulating support assembly consisting of multiple insulating support members disposed at the lower end of the frame body. Each insulating support member has an upper connecting end and a lower connecting end, and a vertical plate connecting the upper connecting end and the lower connecting end. The upper connecting end is connected to the frame body, and the lower connecting end is used to connect to the housing of an energy storage system using the battery cluster frame. The vertical plate has a thickness in the horizontal direction. The vertical plates of each insulating support member form the vertical plate structure of the insulating support assembly. The side plates of each insulating support member in the thickness direction form the side plates of the vertical plate structure of the insulating support assembly. The side plates of the vertical plate structure have projections in the width direction of the battery pack mounting compartment opening and the depth direction of the battery pack mounting compartment.

[0019] As a further improvement, the length of some insulating support vertical plates extends along the width direction of the battery pack installation compartment opening, while the length of the remaining insulating support vertical plates extends along the depth direction of the battery pack installation compartment. Furthermore, the number of insulating supports with vertical plates extending along the width direction of the battery pack installation compartment opening is greater than the number of insulating supports with vertical plates extending along the depth direction of the battery pack installation compartment.

[0020] As a further improvement, the frame includes two longitudinal beams arranged at intervals along the width of the battery pack installation compartment opening and two transverse beams arranged at intervals along the depth of the battery pack installation compartment, which are located at the lower end of the frame. The two transverse beams and the two longitudinal beams are connected to form a square ring beam. Insulating support members with vertical plates extending along the width of the battery pack installation compartment opening are provided at the four corners of the ring beam. Insulating support members with vertical plates extending along the depth of the battery pack installation compartment are provided at the middle positions of the two longitudinal beams.

[0021] As a further improvement, the frame also includes an intermediate reinforcing beam connected between the middle of the two longitudinal beams, and an insulating support member with a vertical plate extending along the width of the battery pack installation compartment opening is provided on the intermediate reinforcing beam.

[0022] As a further improvement, the vertical plate of the insulating support is provided with multiple layers of skirts arranged at intervals to increase the creepage distance of the insulating support.

[0023] As a further improvement, the frame includes a left upright and a right upright arranged along the width of the battery pack installation compartment opening. A left rail is fixed on the left upright and a right rail is fixed on the right upright. The left and right rails cooperate to support the battery pack, so as to form the battery pack installation compartment on the upper side of the left and right rails. The space between the left and right rails constitutes a clearance space for avoiding the fork arms of the forklift that lifts the battery pack.

[0024] As a further improvement, the left and / or right rails have a downward folding section at one end of the battery pack mounting compartment opening, and the folding section has fixing holes for fixing the battery pack.

[0025] As a further improvement, a wire clip is fixed at the location of the battery pack installation compartment opening on the frame to secure the battery pack connection wires.

[0026] The beneficial effects are as follows: The battery cluster in this utility model is an improvement on the structure of the existing battery cluster. The specific improvement is in the insulation support structure of the battery cluster frame. The side of the vertical plate structure of the battery cluster frame in this utility model is composed of the side plate surfaces in the thickness direction of the vertical plates of each insulating support member. The side of the vertical plate structure has projections in both the width direction of the battery pack installation compartment opening and the depth direction of the battery pack installation compartment. In this way, the length of the vertical plate of the insulating support member group has a component in at least both the width direction of the battery pack installation compartment opening and the depth direction of the battery pack installation compartment. Since the vertical plate of the insulating support member has better shear resistance in the length direction, the insulating support member group has good shear resistance in both the width direction of the battery pack installation compartment opening and the depth direction of the battery pack installation compartment. This solves the technical problem that the existing battery cluster frame cannot have good shear resistance in both the length and width directions of the vehicle carrying the corresponding energy storage system.

[0027] To achieve the above objectives, the technical solution of the energy storage system provided by this utility model is as follows:

[0028] An energy storage system includes a housing and multiple battery clusters disposed within the housing. Each battery cluster includes a battery cluster frame and a battery pack installed within the battery cluster frame. The battery cluster frame includes a frame body with a battery pack mounting compartment for mounting the battery pack. It also includes an insulating support assembly consisting of multiple insulating support members disposed at the lower end of the frame body. Each insulating support member has an upper connecting end and a lower connecting end, and a vertical plate connecting the upper connecting end and the lower connecting end. The upper connecting end is connected to the frame body, and the lower connecting end is used to connect to the housing body. The vertical plate has a thickness in the horizontal direction. The vertical plates of each insulating support member form the vertical plate structure of the insulating support assembly. The side plate surface of each insulating support member in the thickness direction forms the side surface of the vertical plate structure of the insulating support assembly. The side surface of the vertical plate structure has projections in the width direction of the battery pack mounting compartment opening and the depth direction of the battery pack mounting compartment.

[0029] As a further improvement, the length of some insulating support vertical plates extends along the width direction of the battery pack installation compartment opening, while the length of the remaining insulating support vertical plates extends along the depth direction of the battery pack installation compartment. Furthermore, the number of insulating supports with vertical plates extending along the width direction of the battery pack installation compartment opening is greater than the number of insulating supports with vertical plates extending along the depth direction of the battery pack installation compartment.

[0030] As a further improvement, the frame includes two longitudinal beams arranged at intervals along the width of the battery pack installation compartment opening and two transverse beams arranged at intervals along the depth of the battery pack installation compartment, which are located at the lower end of the frame. The two transverse beams and the two longitudinal beams are connected to form a square ring beam. Insulating support members with vertical plates extending along the width of the battery pack installation compartment opening are provided at the four corners of the ring beam. Insulating support members with vertical plates extending along the depth of the battery pack installation compartment are provided at the middle positions of the two longitudinal beams.

[0031] As a further improvement, the frame also includes an intermediate reinforcing beam connected between the middle of the two longitudinal beams, and an insulating support member with a vertical plate extending along the width of the battery pack installation compartment opening is provided on the intermediate reinforcing beam.

[0032] As a further improvement, the vertical plate of the insulating support is provided with multiple layers of skirts arranged at intervals to increase the creepage distance of the insulating support.

[0033] As a further improvement, the frame includes a left upright and a right upright arranged along the width of the battery pack installation compartment opening. A left rail is fixed on the left upright and a right rail is fixed on the right upright. The left and right rails cooperate to support the battery pack, so as to form the battery pack installation compartment on the upper side of the left and right rails. The space between the left and right rails constitutes a clearance space for avoiding the fork arms of the forklift that lifts the battery pack.

[0034] As a further improvement, the left and / or right rails have a downward folding section at one end of the battery pack mounting compartment opening, and the folding section has fixing holes for fixing the battery pack.

[0035] As a further improvement, a wire clip is fixed at the location of the battery pack installation compartment opening on the frame to secure the battery pack connection wires.

[0036] The beneficial effects are: the battery cluster frame in this utility model is an improvement on the structure of the battery cluster frame in the prior art.

[0037] The beneficial effects are as follows: The energy storage system in this utility model is an improvement on the structure of existing energy storage systems. The specific improvement is in the insulation support structure of the battery cluster frame. The side of the vertical plate structure of the battery cluster frame in this utility model is composed of the side plates of the vertical plates in the thickness direction of each insulating support member. The side of the vertical plate structure has projections in both the width direction of the battery pack installation compartment opening and the depth direction of the battery pack installation compartment. In this way, the length of the vertical plate of the insulating support member group has a component in at least both the width direction of the battery pack installation compartment opening and the depth direction of the battery pack installation compartment. Since the vertical plate of the insulating support member has better shear resistance in the length direction, the insulating support member group has good shear resistance in both the width direction of the battery pack installation compartment opening and the depth direction of the battery pack installation compartment. This solves the technical problem that the battery cluster frame of the existing energy storage system cannot have good shear resistance in both the length and width directions of the vehicle carrying the energy storage system. Attached Figure Description

[0038] Figure 1 A schematic diagram of one embodiment of the battery cluster provided by this utility model;

[0039] Figure 2 A schematic diagram of a battery cluster frame according to one embodiment of the battery cluster provided by this utility model;

[0040] Figure 3 This is a bottom view of one embodiment of the battery cluster provided by this utility model;

[0041] Figure 4 A schematic diagram of an insulating support member for one embodiment of the battery cluster provided by this utility model;

[0042] Figure 5 A front view of one embodiment of the battery cluster provided by this utility model;

[0043] Figure 6 Right view of an embodiment of the battery cluster provided by this utility model;

[0044] Figure 7 Left view of an embodiment of the battery cluster provided by this utility model;

[0045] Explanation of reference numerals in the attached figures:

[0046] 1. Battery cluster frame; 2. Battery pack; 3. High-voltage module unit; 4. High-voltage module unit installation compartment; 5. Battery pack installation compartment; 6. Left vertical frame; 7. Right vertical frame; 8. Left rail; 9. Right rail; 10. Fixing hole; 11. Connecting piece; 12. First longitudinal beam; 13. Second longitudinal beam; 14. First crossbeam; 15. Second crossbeam; 16. Intermediate reinforcing beam; 17. Insulating support; 171. Upper connecting end; 172. Lower connecting end; 173. Vertical plate; 174. Skirt; 18. Wire clamp; 19. Wire. Detailed Implementation

[0047] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0048] This utility model is based on the existing battery cluster structure and is mainly used to solve the technical problem that the insulation support assembly of the existing battery cluster frame cannot have good shear bearing performance in both the width and depth directions of the battery pack installation compartment opening.

[0049] The principle of the battery cluster design in this utility model is as follows: Regarding the structure of the battery cluster frame, instead of arranging all insulating support members solely along the width of the battery pack installation compartment opening according to the length of the vertical plate, or along the depth of the battery pack installation compartment solely along the length of the vertical plate, the vertical plates of each insulating support member form the vertical plate structure of the insulating support member group. The side plates of each insulating support member in the thickness direction constitute the side surface of the vertical plate structure of the insulating support member group. This allows the side surface of the vertical plate structure of the insulating support member group to have projections in both the width and depth directions of the battery pack installation compartment opening. This enables the battery cluster frame to bear loads in both the width and depth directions of the battery pack installation compartment opening by the vertical plates or components of the vertical plate length arranged along those directions, thus ensuring good shear strength performance of the battery cluster frame in both the width and depth directions of the battery pack installation compartment opening.

[0050] Example 1 of the battery cluster of this utility model:

[0051] like Figure 1 As shown, the battery cluster includes a battery cluster frame 1, a battery pack 2 and a high-voltage module unit 3 installed within the battery cluster frame 1. The high-voltage module unit 3 is used for AC / DC conversion and voltage control. The structure of the battery cluster frame 1 is as follows: Figure 2 As shown, the battery cluster frame 1 includes a frame and an insulating support assembly installed at the lower end of the frame. The insulating support assembly consists of multiple insulating support members 17. The frame has a high-voltage module unit mounting compartment 4 for mounting high-voltage module units 3, and multiple battery pack mounting compartments 5 are arranged side by side on the upper side of the high-voltage module unit mounting compartment 4.

[0052] like Figure 2 As shown, the frame has left uprights 6 and right uprights 7 arranged at intervals along the left-right direction. A left rail 8 is fixed on the left upright 6, and a right rail 9 is fixed on the right upright 7. The left rails 8 and right rails 9 are set at the same height, and both have a support surface for supporting the battery pack 2. Thus, a battery pack mounting compartment 5 is formed on the upper side of the left rails 8 and right rails 9. The space between the left rails 8 and right rails 9 constitutes a clearance space for the forklift forks that lift the battery pack 2. In this embodiment, six sets of left rails 8 and right rails 9 are arranged at intervals along the vertical direction to form six battery pack mounting compartments 5. The left-right dimension of the opening of the battery mounting compartment 5 is the width of the battery mounting compartment opening, and the direction in which the battery pack 2 is fed into the battery pack mounting compartment 5 is the depth direction of the battery pack mounting compartment 5. In other embodiments, the number of battery pack mounting compartments can be increased or decreased adaptively according to design needs. Below the lowest battery pack mounting compartment 5 is the high-voltage module unit mounting compartment 4.

[0053] To secure the battery pack 2, the ends of the left track 8 and right track 9 at the opening of the battery pack mounting compartment 5 are folded downwards to form downward-extending folded sections. Fixing holes 10 are provided on these folded sections. A connecting piece 11 is fixed to the base of the battery pack 2, and the connecting piece 11 has a fixing hole corresponding to the fixing hole 10. After the battery pack 2 is installed in place, bolt and nut assemblies are inserted into the fixing holes 10 and the fixing hole to fix the battery pack 2 to the battery cluster frame 1. In other embodiments, folded sections can be provided only on one of the left and right tracks to secure the battery pack. Alternatively, fixing structures for securing the battery pack can be provided on both the left and right upright frames. Regarding the formation of the battery pack mounting compartment, in other embodiments, a cross brace can be connected between the left and right upright frames to support the battery pack, thus forming the battery pack mounting compartment above the cross brace.

[0054] like Figure 3 As shown, the frame includes a first longitudinal beam 12 and a second longitudinal beam 13 arranged at intervals along the width direction of the opening of the battery pack installation compartment 5, and a first cross beam 14 and a second cross beam 15 arranged at intervals along the depth direction of the battery pack installation compartment 5. The first longitudinal beam 12 is located at the lower end of the left vertical frame 6, and the second longitudinal beam 13 is located at the lower end of the right vertical frame 7. The first longitudinal beam 12, the second longitudinal beam 13, the first cross beam 14, and the second cross beam 15 are connected to form a rectangular ring beam. The frame also includes an intermediate reinforcing beam 16 connecting the middle positions of the first longitudinal beam 12 and the second longitudinal beam 13.

[0055] The structure of the insulating support 17 is as follows Figure 4As shown, the entire structure is made of insulating material and has a set height to ensure a suitable insulation distance between the battery pack 2 and the bottom plate of the energy storage system when the battery pack is installed in the system's enclosure. The insulating support 17 includes an upper connecting end 171, a lower connecting end 172, and a vertical plate 173 connecting the upper connecting end 171 and the lower connecting end 172. The upper connecting end 171 is used for fixed connection to the frame, and the lower connecting end 172 is used for fixed connection to the bottom plate of the energy storage system enclosure using the battery pack. The vertical plate 173 has multiple layers of skirts 174 spaced vertically to increase the creepage distance of the insulating support 17. The vertical plate 173 has a length and thickness in the horizontal direction.

[0056] In this embodiment, as Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, the insulating support members 17 in the insulating support assembly are divided into two types according to their installation orientation. One type has five insulating support members 17 arranged along the width of the opening of the battery pack installation compartment 5, including those located at the four corners of the ring beam and those located in the middle of the intermediate reinforcing beam 16. The other type has two insulating support members 17 arranged along the depth of the battery pack installation compartment 5, including those located in the middle of the first longitudinal beam 12 and the second longitudinal beam 13. This arrangement ensures that the number of insulating support members 17 extending along the width of the opening of the battery pack installation compartment 5 is greater than the number of insulating support members 17 extending along the depth of the battery pack installation compartment 5, allowing the battery cluster frame 1 to better adapt to frequent acceleration and deceleration during actual transportation.

[0057] The vertical plates 173 of each insulating support member 17 form the vertical plate structure of the insulating support member group. The side plate surface of the vertical plate 173 of each insulating support member 17 in the thickness direction constitutes the side surface of the vertical plate structure of the insulating support member group. By setting it in the above manner, the side surface of the vertical plate structure has a projection in both the width direction of the opening of the battery pack installation compartment 5 and the depth direction of the battery pack installation compartment 5. When the energy storage system using this battery cluster is transported by a vehicle, if the vehicle brakes or accelerates, the insulating support members 17 arranged along the width direction of the opening of the battery pack installation compartment 5 with the length of the vertical plate 173 can reliably support the frame and the components installed inside. When the vehicle turns, the insulating support members 17 arranged along the depth direction of the battery pack installation compartment 5 with the length direction of the vertical plate 173 can reliably support the frame and the components installed inside. This makes the battery cluster frame 1 have good shear bearing performance in both the width direction of the opening of the battery pack installation compartment 5 and the depth direction of the battery pack installation compartment 5.

[0058] In other embodiments, all insulating supports can be arranged at a 45° angle between the length of the vertical plate and the width and depth of the battery pack installation compartment opening. Alternatively, some insulating supports can be arranged at a 45° angle with the width and depth of the battery pack installation compartment opening, with some vertical plates extending along the width of the compartment opening and others along the depth of the compartment. The number of insulating supports can also be adjusted according to actual load-bearing requirements.

[0059] Embodiment 2 of the battery cluster of this utility model, in this embodiment, as follows: Figure 1 As shown, a wire clip 18 is installed at the battery pack installation compartment opening on the battery cluster frame to fix the wires 19 connecting different battery packs 2 and the high-voltage module unit 3, thereby improving the convenience of wiring.

[0060] Embodiments of the battery cluster frame in this utility model: The embodiments of the battery cluster frame are the battery cluster frames described in the various embodiments of the battery cluster described above, and will not be specifically described here.

[0061] An embodiment of the energy storage system in this utility model: The energy storage system has a box and multiple battery clusters disposed in the box. The box can be a container or a container with similar storage space and structure to a container. The battery clusters are the battery clusters in the above embodiments, which will not be described in detail here.

[0062] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery cluster frame, comprising a frame body having a battery pack mounting compartment for mounting a battery pack, and further comprising an insulating support assembly consisting of multiple insulating support members disposed at the lower end of the frame body. Each insulating support member has an upper connecting end and a lower connecting end, and a vertical plate connecting the upper connecting end and the lower connecting end. The upper connecting end is connected to the frame body, and the lower connecting end is used to connect to the housing of an energy storage system using the battery cluster frame. The vertical plate has a thickness in the horizontal direction, and the vertical plates of each insulating support member form the vertical plate structure of the insulating support assembly. The side plates in the thickness direction of the vertical plates of each insulating support member form the side surfaces of the vertical plate structure of the insulating support assembly. The frame is characterized in that... The side of the vertical plate structure has projections in the width direction of the battery pack installation compartment opening and in the depth direction of the battery pack installation compartment.

2. The battery cluster frame according to claim 1, characterized in that, Some of the insulating support vertical plates are arranged with their lengths extending along the width of the battery pack installation compartment opening, while the remaining insulating support vertical plates are arranged with their lengths extending along the depth of the battery pack installation compartment. The number of insulating support vertical plates arranged with their lengths extending along the width of the battery pack installation compartment opening is greater than the number of insulating support vertical plates arranged with their lengths extending along the depth of the battery pack installation compartment.

3. The battery cluster frame according to claim 2, characterized in that: The frame includes two longitudinal beams spaced apart at the lower end of the frame along the width of the battery pack installation compartment opening and two transverse beams spaced apart along the depth of the battery pack installation compartment. The two transverse beams and the two longitudinal beams are connected to form a square ring beam. Insulating support members with vertical plates extending along the width of the battery pack installation compartment opening are provided at the four corners of the ring beam. Insulating support members with vertical plates extending along the depth of the battery pack installation compartment are provided at the middle positions of the two longitudinal beams.

4. The battery cluster frame according to claim 3, characterized in that, The frame also includes an intermediate reinforcing beam connected between the middle of the two longitudinal beams, and an insulating support member with a vertical plate extending along the width of the battery pack installation compartment opening is provided on the intermediate reinforcing beam.

5. The battery cluster frame according to any one of claims 1-4, characterized in that, The vertical plate of the insulating support is provided with multiple layers of skirts arranged at intervals to increase the creepage distance of the insulating support.

6. The battery cluster frame according to any one of claims 1-4, characterized in that, The frame includes a left vertical frame and a right vertical frame arranged along the width of the battery pack installation compartment opening. A left rail is fixed on the left vertical frame and a right rail is fixed on the right vertical frame. The left and right rails cooperate to support the battery pack, so as to form the battery pack installation compartment on the upper side of the left and right rails. The space between the left and right rails constitutes a clearance space for avoiding the fork arms of the forklift that lifts the battery pack.

7. The battery cluster frame according to claim 6, characterized in that, The left and / or right rails have a downward folding section at one end of the battery pack mounting compartment opening, and the folding section has fixing holes for fixing the battery pack.

8. The battery cluster frame according to any one of claims 1-4, characterized in that, The frame is fixed with wire clips at the opening of the battery pack installation compartment to secure the battery pack connection wires.

9. A battery cluster, comprising a battery cluster frame and a battery pack mounted within the battery cluster frame, characterized in that, The battery cluster frame is the battery cluster frame as described in any one of claims 1-8.

10. An energy storage system, comprising a housing and a plurality of battery clusters disposed within the housing, characterized in that, The battery cluster is the battery cluster described in claim 9.

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