Energy storage battery module

Abstract

The utility model discloses an energy storage battery module which comprises a plurality of battery bodies, and further comprises a plurality of plastic tray bodies arranged at the tops of the plurality of battery bodies, a side plate body arranged on one side of the plurality of battery bodies, and an end plate body arranged on one side of every two battery bodies which are far away from each other, in addition, the busbar is fixedly connected to the battery poles of the plurality of battery bodies, the cover plate body is arranged above the plurality of plastic tray bodies, the overall structure is flexible, the plastic tray bodies and the cover plate body can be spliced to adapt to modules with different string numbers, and the metal fixing blocks are movable modules independent of the support body, so that the plastic tray bodies and the cover plate bodies can be spliced to adapt to the modules with different string numbers. The movable space is reserved in the fixing block groove, the support body can be prevented from being damaged when the battery module is vibrated, the movable metal fixing block improves the error-tolerant rate of the busbar pitch difference, the machining precision is reduced under the condition that the specification is met, and the manufacturing cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to an energy storage battery module. Background Technology

[0002] An energy storage battery module includes a module housing and a battery pack installed in the module housing. The module housing serves to fix and protect the battery pack.

[0003] Currently, the tray and cover of traditional battery modules are designed as a single unit. If the number of batteries in the module changes, the tray and cover need to be redesigned, resulting in high design and development costs. Furthermore, the busbar support and the fixing threaded hole are designed as a single unit. During assembly and use, excessive torque or frequent vibration can cause the threaded hole to be pulled out of the support.

[0004] An energy storage battery module is proposed to address the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide an energy storage battery module that addresses the problems mentioned in the background art. In traditional battery modules, the tray and cover are integrated, requiring redesign of both if the number of batteries changes, resulting in high design and development costs. Furthermore, the busbar support and fixing threaded hole are integrated, leading to the problem that the threaded hole can be pulled out of the support during assembly and use due to excessive torque or frequent vibration.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an energy storage battery module, comprising a plurality of battery bodies;

[0007] Also includes:

[0008] A plurality of plastic tray bodies are provided on the top of a plurality of battery bodies, and a side plate body is provided on one side of a plurality of battery bodies, and an end plate body is provided on one side of two battery bodies that are far apart, and a busbar is fixedly connected to the battery terminals of a plurality of battery bodies, and a cover plate body is provided on the top of a plurality of plastic tray bodies.

[0009] The top of each of the two end plate bodies is fixedly connected to a support body, and the interior of each support body is provided with a fixing block groove, and a metal fixing block is placed inside the fixing block groove.

[0010] The plastic tray body is an integrally formed structure and is placed on top of the battery body. The upper surface of the plastic tray body has two sets of battery terminal openings symmetrically opened. The top of the plastic tray body has isolation strips on both sides of the two sets of battery terminal openings. The upper part of the two isolation strips is fixedly connected to busbar buckles. A baffle bar protruding from the upper surface of the plastic tray body is formed between the two sets of battery terminal openings. The outer side of the two sets of busbar buckles is fixedly connected to cover plate buckles. The top of the plastic tray body has symmetrically opened explosion-proof holes between the two sets of battery terminal openings. The tray body has protrusions around its circumference.

[0011] Preferably, the top of the plastic pallet body is fixedly connected to several wire harness cable tie fixing ports outside the two explosion-proof holes, and the wire harness cable tie fixing ports protrude from the upper surface of the plastic pallet body.

[0012] Preferably, the side plate body is disposed in the width direction of the battery, and a bending area is formed at the upper end of the side plate body, which is pressed against the protrusion on the plastic tray body.

[0013] Preferably, the end plate body is located in the thickness direction of the side of the battery body, and the side of the end plate body is connected to the side plate body by welding.

[0014] Preferably, the busbar is placed inside the battery terminal opening and directly above the battery terminal, and is limited laterally and longitudinally by the busbar latches on the plastic tray body.

[0015] Preferably, the side of the fixing block groove is symmetrically provided with drainage outlets, and the bottom of the support body is symmetrically connected with wedge plates, which are snapped and fixed to the end plate body.

[0016] Preferably, the metal fixing block is placed inside the fixing block groove, and the upper end of the metal fixing block is symmetrically provided with threaded holes, and the busbar is bolted and fixed through the threaded holes.

[0017] Preferably, the cover plate body has symmetrically installed bayonets on both sides, and the bayonets are detachably connected to the cover plate buckles.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This energy storage battery module has a flexible overall structure. The plastic tray body and cover body can be spliced ​​to adapt to modules with different numbers of strings. The metal fixing block is a movable module independent of the support body. The groove of the fixing block is reserved with movable space, which can prevent damage to the support body when the battery module is subjected to vibration. In addition, the movable metal fixing block improves the tolerance rate of the difference in the spacing of the busbar holes, reduces the processing precision while meeting the specifications, and lowers the manufacturing cost. The specific details are as follows:

[0019] 1. The number of plastic tray bodies and cover plates can be selected according to the number of battery bodies. During overall assembly, the plastic tray bodies can be placed inside the battery bodies. End plates are set on both sides of the battery pack. Multiple plastic tray bodies are designed as a single unit, allowing the busbars to be connected to the battery terminals. The busbars can then pass through the battery terminal openings and be fixed using busbar clips. Fasteners can be passed through the busbars to fix them to the metal fixing blocks. The upper end of the side plate body forms a bent area, which is pressed against the protrusion on the plastic tray body. The cover plate body covers the plastic tray body, and the support body is fixed to the end plate body by a wedge plate. The cover plate body is directly snapped into the cover plate buckle of the plastic tray body through a snap-fit, thus fixing the cover plate body. This allows the plastic tray body and the cover plate body to be spliced ​​together to adapt to modules with different numbers of strings. The metal fixing block is an independent movable module of the support body. The fixing block groove has reserved space for movement, which can prevent damage to the support body when the battery module is subjected to vibration. In addition, the movable metal fixing block improves the tolerance rate of the difference in the busbar hole spacing, reduces the processing precision and reduces the manufacturing cost while meeting the specifications.

[0020] 2. The illustrated plastic pallet body and cover body are symmetrical and have an even number of structural designs, which are suitable for even-number modules. If the module has an odd number of modules, the plastic pallet body and cover body can be cut into individual forms for use, which is convenient and flexible and does not require redesigning the mold. In addition, the cover body and the plastic pallet body are fixed by a snap-fit, which is convenient for disassembly and assembly and facilitates future fault repair. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall exploded structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the plastic pallet body of this utility model;

[0023] Figure 3 This is a schematic diagram of the cover plate body structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the support body structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the metal fixing block structure of this utility model.

[0026] In the diagram: 1. Battery body; 2. Plastic tray body; 3. Side plate body; 4. End plate body; 5. Busbar; 6. Support body; 7. Metal fixing block; 8. Cover plate body; 9. Battery terminal outlet; 10. Busbar buckle; 11. Baffle strip; 12. Isolation strip; 13. Cable tie fixing opening; 14. Explosion-proof hole; 15. Cover plate buckle; 16. Protrusion; 17. Bay; 18. Fixing block groove; 19. Drain outlet; 20. Wedge plate; 21. Threaded hole. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5This utility model provides a technical solution: an energy storage battery module, including several battery bodies 1, and further including: several plastic tray bodies 2 disposed on the top of several battery bodies 1, and side plate bodies 3 disposed on one side of several battery bodies 1, and end plate bodies 4 disposed on one side of two battery bodies 1 that are far apart, and busbars 5 fixedly connected to the battery terminals of several battery bodies 1, and cover plate bodies 8 disposed on the top of several plastic tray bodies 2, wherein support bodies 6 are fixedly connected to the top of two end plate bodies 4, and fixing block grooves 18 are opened inside the two support bodies 6, and metal fixing blocks 7 are placed inside the fixing block grooves 18, wherein the plastic tray bodies 2 are integrally formed and placed on the top of the battery bodies 1, and two sets of battery terminal openings 9 are symmetrically opened on the upper end face of the plastic tray bodies 2, and isolation strips 12, electrical isolation busbars 5 and side plate bodies 3 are formed on both sides of the top of the plastic tray bodies 2 located at the two sets of battery terminal openings 9, and the plastic tray bodies 2 are further provided with the following: Two isolation strips 12 are fixedly connected to busbar buckles 10 on the upper part, and a baffle 11 protruding from the upper end face of the plastic tray body 2 is formed between the two battery terminal openings 9 of each group, isolating adjacent busbars 5 and increasing the electrical safety distance between busbars 5. Cover plate buckles 15 are fixedly connected to the outer side of the two sets of busbar buckles 10. Explosion-proof holes 14 are symmetrically opened on the top of the plastic tray body 2 between the two sets of battery terminal openings 9 to provide a channel for relieving battery thermal runaway pressure. A protrusion 16 is formed around the circumference of the tray body. The lower end face of the plastic tray body 2 is flat and closely fits the upper end face of the battery body 1. The overall structure is flexible, and the plastic tray body 2 and the cover plate body 8 can be spliced ​​to adapt to modules with different numbers of strings. The metal fixing block 7 is an independent movable module from the support body 6. The fixed block groove 18 has reserved movable space to avoid damage to the support body 6 when the battery module is subjected to vibration. In addition, the movable metal fixing block 7 improves the fault tolerance rate of the difference in the hole spacing of the busbars 5, reduces the processing precision and reduces the manufacturing cost while meeting the specifications.

[0029] The top of the plastic tray body 2 is fixedly connected to several wire harness cable tie fixing ports 13 outside the two explosion-proof holes 14. The wire harness cable tie fixing ports 13 protrude from the upper end face of the plastic tray body 2 to prevent condensation from flowing directly into the side plate body 3 and enhance the electrical isolation between the busbar 5 and the side plate body 3. The side plate body 3 is located in the width direction of the battery, and a bending area is formed at the upper end of the side plate body 3. The protrusion 16 pressed against the plastic tray body 2 can press and fix the side plate body 3. The end plate body 4 is located in the thickness direction of the side of the battery body 1, and the side of the end plate body 4 is connected to the side plate body 3 by welding, which facilitates the fixing of multiple battery bodies 1. The busbar 5 is placed inside the battery terminal opening 9 and directly above the battery terminal, and is connected through the plastic tray body 2. The busbar buckle 10 has horizontal and vertical upper limits, which can limit the busbar 5. The side of the fixing block groove 18 is symmetrically provided with drainage outlets 19 to prevent condensation formed on the busbar 5 from accumulating in the fixing block groove 18 for a long time. The bottom of the support body 6 is symmetrically connected with wedge plates 20, and the wedge plates 20 are snapped and fixed on the end plate body 4 to facilitate the fixation of the support body 6. The metal fixing block 7 is placed inside the fixing block groove 18, and the upper end of the metal fixing block 7 is symmetrically provided with threaded holes 21. The busbar 5 is bolted and fixed through the threaded holes 21 to facilitate the fixation of the busbar 5. The cover plate body 8 is symmetrically provided with latches 17 on both sides, and the latches 17 are detachably connected to the cover plate buckle 15 to facilitate the fixation between the cover plate body 8 and the plastic tray body 2.

[0030] Working principle: Before using this type of energy storage battery module, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 5 As shown, the number of plastic tray body 2 and cover plate body 8 can be selected according to the number of battery body 1. During the overall assembly, the plastic tray body 2 can be placed inside the battery body 1. End plate bodies 4 are set on both sides of the battery pack. Multiple plastic tray bodies 2 are designed as a whole. The busbar 5 can be connected to the battery electrode post. Then the busbar 5 can pass through the battery electrode post opening 9 and be fixed by the busbar buckle 10. Fasteners can pass through the busbar 5, and then the busbar 5 is fixed to the metal fixing block 7. The upper end of the side plate body 3 forms a bent area and is pressed onto the protrusion 16 on the plastic tray body 2. Then the cover plate body 8 is placed on the plastic tray body 2. The support body 6 is fixed to the end plate body 4 by the wedge plate 20. The cover plate body 8 is directly snapped into the cover plate buckle 15 of the plastic tray body 2 through the buckle 17, so that the cover plate body 8 is fixed.

[0031] The illustrated plastic pallet body 2 and cover body 8 are symmetrical and have an even number of structural designs, which are suitable for even-number modules. If the module has an odd number of modules, the plastic pallet body 2 and cover body 8 can be cut into individual units for use, which is convenient and flexible and does not require redesigning the mold. In addition, the cover body 8 and the plastic pallet body 2 are fixed by a snap-fit, which is convenient for disassembly and assembly and facilitates future fault repair.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An energy storage battery module, comprising a plurality of battery bodies (1); characterized in that Further comprising: The top of the plurality of battery bodies (1) is provided with a plurality of plastic tray bodies (2), one side of the plurality of battery bodies (1) is provided with a side plate body (3), and one side of the two battery bodies (1) away from each other is provided with an end plate body (4), and the battery pole of the plurality of battery bodies (1) is fixedly connected with a busbar (5), and the upper side of the plurality of plastic tray bodies (2) is provided with a cover plate body (8); Wherein, the top of the two end plate bodies (4) is fixedly connected with a support body (6), and the inside of the two support bodies (6) is provided with a fixed block groove (18), and the inside of the fixed block groove (18) is placed with a metal fixed block (7); Wherein, the plastic tray body (2) is an integral structure and is placed at the upper end of the battery body (1), and the upper end surface of the plastic tray body (2) is symmetrically provided with two groups of battery pole ports (9), and the top of the plastic tray body (2) is formed with a partition strip (12) on both sides of the two groups of battery pole ports (9), and the upper part of the two partition strips (12) is fixedly connected with a busbar buckle (10), and the middle of each group of two battery pole ports (9) is formed with a blocking strip (11) protruding from the upper end surface of the plastic tray body (2), and the outer side of the two groups of busbar buckles (10) is fixedly connected with a cover plate buckle (15), and the top of the plastic tray body (2) is symmetrically provided with an explosion-proof hole (14) between the two groups of battery pole ports (9), and the tray body is formed with a protrusion (16) around.

2. The energy storage battery module of claim 1, wherein: The top of the plastic tray body (2) is fixedly connected with a plurality of wire harness tie fixing ports (13) outside the two explosion-proof holes (14), and the wire harness tie fixing port (13) protrudes from the upper end surface of the plastic tray body (2).

3. The energy storage battery module of claim 1, wherein: The side plate body (3) is arranged in the width direction of the battery, and the upper end of the side plate body (3) is formed with a bending area, and the protrusion (16) is pressed on the plastic tray body (2).

4. The energy storage battery module of claim 1, wherein: The end plate body (4) is in the thickness direction of the side of the battery body (1), and the side of the end plate body (4) is connected by tailor welding with the side plate body (3).

5. The energy storage battery module of claim 1, wherein: The busbar (5) is placed in the battery pole port (9) and directly above the battery pole, and is limited in the horizontal and vertical directions by the busbar buckle (10) on the plastic tray body (2).

6. The energy storage battery module of claim 1, wherein: The side surface of the fixed block groove (18) is symmetrically provided with a drainage port (19), and the bottom of the support body (6) is symmetrically connected with a wedge plate (20), and the wedge plate (20) is clamped and fixed on the end plate body (4).

7. The energy storage battery module of claim 1, wherein: The metal fixed block (7) is placed in the fixed block groove (18), and the upper end of the metal fixed block (7) is symmetrically provided with a threaded hole (21), and the busbar (5) is fixedly connected by the threaded hole (21).

8. The energy storage battery module of claim 1, wherein: The cover plate body (8) is symmetrically provided with a bayonet (17) on both sides, and the bayonet (17) is detachably connected with the cover plate buckle (15).

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