Battery module protection structure

Abstract

The utility model discloses a battery module protection structure, which comprises battery units, a conducting bar, an insulation support, an acquisition wire harness and an insulation sealing colloid, a plurality of battery units are fixed together, a plurality of glue filling grooves are arranged on the insulation support, positive pole posts and negative pole posts at the tops of two adjacent battery units extend into the same glue filling groove, and the conducting bar is arranged on the insulation support. The conducting bar is correspondingly arranged in the glue filling groove, two ends of the conducting bar are correspondingly and electrically connected with the positive pole and the negative pole, so that the battery units in one row are connected in series, the wiring terminal at one end of the acquisition wire harness is electrically connected with the conducting bar, and an insulating sealing colloid wrapping the conducting bar, the wiring terminal at the end part of the acquisition wire harness, the positive pole and the negative pole is arranged in the glue filling groove; with the adoption of the technical scheme, the insulation support and the insulation sealing colloid play an insulation protection role, and also play a waterproof and moistureproof role, and compared with an existing battery module adopting integral glue filling, the battery module has the advantages that the glue consumption is less, the weight of the battery module can be effectively reduced, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field related to battery modules, and in particular to a battery module protection structure. Background Art

[0002] The battery module includes multiple energy storage cells, multiple aluminum bars, and a collection harness. The multiple energy storage cells are arranged in a row with end plates at both ends and fixed together with straps. The ends of the aluminum bars are connected to the positive and negative poles on the top of the two adjacent energy storage cells, so that the energy storage cells are connected in series. The collection harness is located above the energy storage cells, and the multiple terminal blocks at one end are welded to the multiple aluminum bars in a one-to-one correspondence. In order to insulate the top of the battery module, the first method is to connect an insulating protective cover to the top of the battery module to cover the terminals at the ends of the aluminum bars and the collection harness. The second method is to fill the battery module with glue as a whole, wrapping the energy storage cells, aluminum bars, positive and negative poles, and collection harness as a whole. The use of an insulating protective cover cannot achieve waterproof and moisture-proof effects, and the protection is limited. Although the overall glue filling method has good waterproof and moisture-proof effects, it requires the use of a large amount of glue, which will make the battery module too heavy, costly, and difficult to inspect and maintain later. Utility Model Content

[0003] In order to overcome the existing technical defects, the purpose of the present invention is to provide a battery module protection structure to solve the above technical problems.

[0004] The technical solutions adopted by the present invention to solve the technical problems are as follows:

[0005] According to one aspect of the present invention, a battery module protection structure is designed, comprising: a plurality of battery cells, a plurality of conductive bars, an insulating bracket, a collection harness and an insulating sealing colloid. The plurality of battery cells are arranged in a row and end plates are provided at both ends and fixed together by straps. The insulating bracket is provided on the top of the battery cell, and a plurality of glue potting grooves are provided on the insulating bracket. The positive pole and the negative pole at the top of the front end of two adjacent battery cells extend into the same glue potting groove, and the positive pole and the negative pole at the top of the rear end of two adjacent battery cells extend into the same glue potting groove. The plurality of conductive bars are correspondingly provided in the plurality of glue potting grooves, and the two ends of the conductive bars are correspondingly electrically connected to the positive pole and the negative pole, so that a row of battery cells are connected in series. The collection harness is provided on the battery cell, and the plurality of terminal blocks at one end thereof are correspondingly placed in the plurality of glue potting grooves and electrically connected to the conductive bar. Each of the glue potting grooves is provided with an insulating sealing colloid that wraps the conductive bar, the terminal blocks at the end of the collection harness, the positive pole and the negative pole.

[0006] The above technical solution is adopted, by arranging an insulating bracket on the top of the battery cell, arranging a glue pouring groove on the insulating bracket, and arranging the conductive bar in the glue pouring groove and connected to the positive electrode column and the negative electrode column on the battery cell, and placing multiple terminal blocks at one end of the collection harness in multiple glue pouring grooves to electrically connect with the conductive bar, and arranging an insulating sealing colloid to wrap the conductive bar, the terminal blocks, the positive electrode column and the negative electrode column in the glue pouring groove, the insulating bracket and the insulating sealing colloid can play an insulating protection role, and can also play a waterproof and moisture-proof role. Compared with the existing battery module that adopts overall glue pouring, the amount of glue used is less, which can effectively reduce the weight of the battery module and save costs. In addition, the insulating sealing colloid is only arranged in the glue pouring groove, and local glue pouring is adopted, which makes it easy to repair and maintain the battery module after problems occur.

[0007] In order to better solve the above technical defects, the present invention also has a better technical solution:

[0008] In some embodiments, a positioning post is provided in the glue-filling groove, and a positioning hole is provided on the conductive bar, wherein the positioning post cooperates with the positioning hole. The conductive bar can be positioned and installed by cooperating with the positioning post and the positioning hole.

[0009] In some embodiments, the rear end of the insulating bracket is respectively provided with a wire passing groove with a transverse penetrating structure, and a connecting groove is provided on one side of each glue filling groove to connect the glue filling groove with the wire passing groove, and the collection harness part is arranged in the wire passing groove.

[0010] In some embodiments, a through slot is provided in the middle of the insulating bracket, and a row of through holes is provided at the bottom of the through slot. The through holes correspond to the explosion-proof valves of the battery cells, and are intended to facilitate exhaust of the battery cells in the event of a valve explosion.

[0011] In some embodiments, two positioning posts are provided in the glue potting groove, and two positioning holes are provided on the conductive bar.

[0012] In some embodiments, a rubber block is provided on the left and right sides of each battery cell, and an insulating partition is provided between adjacent battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic structural diagram of a battery module protection structure according to an embodiment of the present invention;

[0014] Figure 2 for Figure 1 Schematic diagram of the explosion structure;

[0015] Figure 3 Schematic diagram of the structure of the insulating bracket;

[0016] Reference numerals:

[0017] 1. Battery cell; 11. Positive electrode; 12. Negative electrode; 2. Conductive bar; 21. Positioning hole; 3. Insulating bracket; 31. Glue filling groove; 32. Positioning column; 33. Wire groove; 34. Connecting groove; 35. Through groove; 4. End plate; 5. Binding strap; 6. Rubber block; 7. Insulating partition. DETAILED DESCRIPTION

[0018] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0019] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0020] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, and fixing should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0021] refer to Figures 1 to 3 As shown, the utility model provides a battery module protection structure, which includes: multiple battery cells 1, multiple conductive bars 2, an insulating bracket 3 and a collection harness.

[0022] Multiple battery cells 1 are arranged in a row with end plates 4 at both ends and secured together by straps 5. The battery cells 1 are any of lithium-ion batteries, sodium-ion batteries, polymer batteries, lead-acid batteries, nickel-cadmium batteries, and nickel-metal hydride batteries. Rubber blocks 6 are provided on the left and right sides of each battery cell 1, and insulating separators 7 are provided between adjacent battery cells 1.

[0023] The insulating bracket 3 is made of any one of silicone, rubber, silicone rubber, foam, polyvinyl chloride, polyethylene, cross-linked polyethylene, etc., and is made by vacuum molding or injection molding.

[0024] The insulating bracket 3 is arranged on the top of the battery cell 1, and a plurality of glue pouring grooves 31 are provided on the insulating bracket 3. The plurality of glue pouring grooves 31 form two rows. A through hole for placing the pole therein is provided at the bottom of the glue pouring groove 31. The positive pole 11 and the negative pole 12 at the top of the front end of the two adjacent battery cells 1 extend into the same glue pouring groove 31, and the positive pole 11 and the negative pole 12 at the top of the rear end of the two adjacent battery cells 1 extend into the same glue pouring groove 31. Specifically, from left to right are battery cell one, battery cell two, battery cell three, battery cell four... arranged in sequence, the front end top of battery cell one has a positive pole 11 and the rear end top has a negative pole 12, the front end top of battery cell two has a negative pole 12 and the rear end top has a positive pole 11, the front end top of battery cell three has a positive pole 11 and the rear end top has a negative pole 12, the front end top of battery cell four has a negative pole 12 and the rear end top has a positive pole 11... arranged in sequence, as Figure 2 As shown, the poles marked with "+" are positive poles 11, and those marked with "-" are negative poles 12. The positive pole 11 at the front top of battery cell one and the negative pole 12 at the front top of battery cell two extend into the same glue potting groove 31. The positive pole 11 at the rear top of battery cell two and the negative pole 12 at the rear top of battery cell three extend into the same glue potting groove 31. The negative pole 12 at the front top of battery cell three and the positive pole 11 at the front top of battery cell four extend into the same glue potting groove 31... and so on. Among them, there is a pole in each of the glue potting grooves 31 at both ends of the rear row of glue potting grooves 31.

[0025] The conductive bar 2 is an aluminum bar, a copper bar, a nickel sheet, a steel sheet, etc. In this embodiment, the conductive bar 2 is preferably an aluminum bar. Multiple conductive bars 2 are correspondingly arranged in multiple glue potting grooves 31, and the two ends of the conductive bar 2 are correspondingly electrically connected to the positive electrode column 11 and the negative electrode column 12, so that a row of battery cells 1 are connected in series, wherein the conductive bar 2 is welded to the positive electrode column 11 and the negative electrode column 12 or fixed by bolts.

[0026] Each glue filling groove 31 is provided with one, two or three positioning posts 32. In this embodiment, preferably, each glue filling groove 31 is provided with two positioning posts 32. The conductive bar 2 is provided with the same number of positioning holes 21 as the number of positioning posts 32, and the positioning posts 32 cooperate with the positioning holes 21.

[0027] The collection harness is provided on the battery unit 1. Specifically, the rear end of the insulating bracket 3 is provided with a wire groove 33 with a transverse penetrating structure. One side of each glue groove 31 is provided with one or two connecting grooves 34 that connect the glue groove 31 with the wire groove 33. The collection harness is partially provided in the wire groove 33. The multiple terminal blocks connected to one end of the collection harness pass through the connecting groove 34 and are placed in the multiple glue grooves 31 and electrically connected to the conductive bar 2. The terminal blocks are welded to the conductive bar 2 or fixed by bolts.

[0028] Each glue potting tank 31 is provided with an insulating sealant that wraps the conductive bar 2, the terminal at the end of the collection harness, the positive electrode 11, and the negative electrode 12. The insulating sealant is formed by injecting liquid or molten insulating glue into the glue potting tank 31 and solidifying it.

[0029] A through slot 35 with a transverse penetrating structure is provided in the middle of the insulating bracket 3 , and a row of through holes is transversely provided at the bottom of the through slot 35 .

[0030] The above are only some embodiments of the present invention. For ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A battery module protection structure, characterized in that: include: A plurality of battery cells, a plurality of conductive bars, an insulating bracket and a collection harness, wherein the plurality of battery cells are arranged in a row and end plates are arranged at both ends and fixed together by binding bands, the insulating bracket is arranged on the top of the battery cell, and a plurality of glue potting grooves are arranged on the insulating bracket, the positive pole column and the negative pole column at the top of the front end of two adjacent battery cells extend into the same glue potting groove, and the positive pole column and the negative pole column at the top of the rear end of two adjacent battery cells extend into the same glue potting groove, the plurality of conductive bars are correspondingly arranged in the plurality of glue potting grooves, and the two ends of the conductive bars are correspondingly electrically connected to the positive pole column and the negative pole column, so that a row of battery cells are connected in series, the collection harness is arranged on the battery cell, and the plurality of wiring terminals at one end thereof are correspondingly placed in the plurality of glue potting grooves and electrically connected to the conductive bar, and each of the glue potting grooves is provided with an insulating sealing colloid that wraps the conductive bar, the wiring terminals at the end of the collection harness, the positive pole column and the negative pole column.

2. A battery module protection structure according to claim 1, characterized in that: A positioning column is arranged in the glue-filling groove, a positioning hole is arranged on the conductive bar, and the positioning column cooperates with the positioning hole.

3. A battery module protection structure according to claim 1, characterized in that: The rear ends of the insulating brackets are respectively provided with wire-passing grooves with a transverse penetrating structure, and one side of each of the glue-filling grooves is provided with a connecting groove for connecting the glue-filling groove with the wire-passing groove, and the collection harness part is arranged in the wire-passing groove.

4. A battery module protection structure according to claim 1, characterized in that: A through slot with a transverse penetrating structure is arranged in the middle of the insulating support, and a row of through holes is arranged transversely at the bottom of the through slot.

5. A battery module protection structure according to claim 2, characterized in that: Two positioning columns are arranged in the glue pouring groove, and two positioning holes are arranged on the conductive bar.

6. A battery module protection structure according to claim 1, characterized in that: Rubber blocks are respectively arranged on the left and right sides of each battery unit, and insulating partitions are arranged between adjacent battery units.

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