CN213816282U

CN213816282U - Spliced protective support based on large cylindrical lithium ion battery pack

Info

Publication number: CN213816282U
Application number: CN202022742135.9U
Authority: CN
Inventors: 王自强; 李君�; 王晟; 顾小曾; 刘清泉
Original assignee: Jiangsu Jinyuan New Energy Technology Co ltd
Current assignee: Jiangsu Jinyuan New Energy Technology Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-07-27
Anticipated expiration: 2030-11-24

Abstract

The utility model discloses a splice type protection support based on big post lithium ion battery group, including half ally oneself with the splice frame, two joint splice frames, trigeminy splice frame, four joint splice frames and connecting block, individual layer frame is by two joint splice frames, the trigeminy splice frame, the arbitrary matched stack of four joint splice frames is formed through splice groove one and the concatenation of the protruding head and the tail of concatenation, the individual layer frame wave surface peak valley coincide of upper strata and lower floor, two-layer splice groove two passes through the connecting block concatenation, the both ends that upper and lower floor frame dislocation stacked formation lack the groove department and fill out and piece together half a splice frame, form the protection support of centre gripping battery. The utility model discloses a part mosaic structure can splice into the battery module support that is greater than two antithetical couplet 1 layers wantonly according to the specification needs of matched stack battery, and the commonality is strong, and 60 degrees dislocation emission of upper and lower layer electricity core, high space utilization is higher, and the waveform fluctuation of upper and lower layer concatenation department is controlled joint strength higher simultaneously.

Description

Spliced protective support based on large cylindrical lithium ion battery pack

Technical Field

The utility model relates to a cylinder lithium ion battery field, more specifically say, it relates to a concatenation formula protective cradle based on big cylinder lithium ion battery group.

Background

The lithium secondary battery has the advantages of high working voltage, large specific energy density, long cycle life, low self-discharge rate, no memory effect, small environmental pollution and the like, and is gradually and widely applied to large energy storage facilities, electric bicycles, electric motorcycles and even electric automobiles in recent years.

At present, a grouping protection bracket of a large cylindrical power lithium ion battery pack is generally a bracket with a fixed structure produced according to the assembly specification of the battery pack, and the specifications of products are not universal and cannot be flexibly assembled, so that the bracket with each specification is manufactured by opening a die no matter how large the product capacity is, and the cost is high; and once the product is eliminated, redundant protection supports are abandoned, so that the cost burden of enterprises is increased.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a spliced protective bracket based on a large cylindrical lithium ion battery pack, which solves the problems, and can be randomly spliced into more than two-layer 1 battery modules; the upper and lower layer frames are connected in a fluctuating structure, so that the connection strength is high; the upper and lower layer batteries are spliced by 60 degrees in a staggered manner, so that the space utilization rate is high.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a spliced protection bracket based on a large cylindrical lithium ion battery pack comprises a half-joint splicing frame, a two-joint splicing frame, a three-joint splicing frame, a four-joint splicing frame and connecting blocks, wherein the half-joint splicing frame is a regular octagonal frame which is divided into a half-joint splicing frame A and a half-joint splicing frame B in half, a splicing groove I is arranged on the side edge of the half-joint splicing frame A, a splicing protrusion is arranged on the side edge of the half-joint splicing frame B, the two-joint splicing frame, the three-joint splicing frame and the four-joint splicing frame are respectively formed by two, three and four regular octagonal plates in parallel, the upper edge and the lower edge form a wavy surface, a splicing groove II is respectively arranged at the peak surface and the valley surface of the wavy surface, a splicing groove I and a splicing protrusion are respectively arranged at the two ends of the two-joint splicing frame, the three-joint splicing frame and the four-joint splicing frame, an outer circle limiting column is arranged at the four peripheries of each regular octagonal frame, a single-layer frame is formed by randomly assembling the two-joint splicing frame, the three-joint splicing frame and the four-joint splicing frame through the splicing groove I and the splicing protrusion, the upper layer is superposed with the wave surface peak valley of the lower layer, the two layers of splicing grooves are spliced through the connecting blocks, and the groove parts at the two ends formed by staggered stacking of the upper layer and the lower layer are filled with the half-joint splicing frame to form the protective bracket for clamping the battery.

The utility model discloses further improve technical scheme and be, splice groove is the dovetail, and the concatenation is protruding to be with dovetail complex trapezoidal guide rail. The locking structure has high strength and is more stable.

The utility model discloses further improve technical scheme and be, the splice groove is two T type groove, and the upper and lower layer is pieced together and is formed the I-shaped groove, and the connecting block is the I-shaped piece.

The utility model discloses further improve technical scheme and be, be equipped with the bump on connecting block top surface and the bottom surface respectively, be equipped with recess, bump and recess joint on the two inner walls of splice groove. Effectively prevent the connecting block and drop, connect more firmly.

The utility model discloses further improve technical scheme and be, connecting block lateral surface disjunctor has convex supporting shoe, and the surface is equipped with the ply-yarn drill about the supporting shoe, crosses the ply-yarn drill outside and supporting shoe and does not connect, crosses and forms the wire casing between ply-yarn drill and the supporting shoe. And the wire harness is pressed into the lower part of the wire clamp from the side to be restrained.

The utility model discloses further improve technical scheme be, the supporting shoe side clamps the line ball lid. The wiring harness is blocked from moving out.

The utility model discloses further improve technical scheme be, the connecting block lateral surface is equipped with the wiring hole. Used for threading the wire harness.

The utility model discloses further improve technical scheme be, the spacing post of electricity core excircle is the arc separation blade that is located the four corners position.

The utility model discloses further improve technical scheme be, the utmost point post inslot at two joint splice frames, trigeminy splice frame, four joint splice frames's regular octagon frame center is equipped with the spacing platform in four directions. Avoiding the rotation of the battery cell when locking the screw.

The utility model discloses beneficial effect:

one, the utility model discloses a part mosaic structure can splice into the battery module support that is greater than two antithetical couplet 1 layers wantonly according to the specification needs of matched stack battery, and the commonality is strong, and the enterprise does not need various specification group battery to all be equipped with corresponding protective cradle, improves the flexibility of enterprise's product allotment, need not the many specifications protective cradle of stagnation and pressure, reduces the fund and occupies.

Second, the support is assembled from the bottom up layer upon layer, and upper and lower layer electricity core clamping part dislocation set forms 60 degrees emission concatenations, and high space utilization is higher, and upper and lower layer concatenation department wave form undulation simultaneously controls joint strength and is higher.

Thirdly, the splicing positions of the upper layer bracket and the lower layer bracket are connected by adopting connecting blocks with two structures, wherein the outer side surface of the connecting block with the supporting block is protruded to form a supporting module side surface, so that the stress of the battery cell pole is avoided; the wire passing clamp and the wire binding hole on the connecting block can orderly restrain the wire harness.

Drawings

FIG. 1 is a schematic structural view of the components of the present invention;

FIG. 2 is a schematic perspective view of a four-joint splicing frame;

FIG. 3 is a schematic perspective view of a first connecting block;

FIG. 4 is a schematic perspective view of a second connecting block;

fig. 5 is a schematic structural diagram of the assembled and spliced battery pack.

Detailed Description

As shown in figures 1 and 2, the utility model comprises a half-coupling splicing frame 1, a two-coupling splicing frame 2, a three-coupling splicing frame 3, a four-coupling splicing frame 4 and a connecting block 5, wherein the half-coupling splicing frame 1 is a regular octagonal frame which is divided into a half-coupling splicing frame A and a half-coupling splicing frame B in half, a splicing groove I6 is arranged at the side edge of the half-coupling splicing frame A, a splicing protrusion 7 is arranged at the side edge of the half-coupling splicing frame B, the two-coupling splicing frame 2, the three-coupling splicing frame 3 and the four-coupling splicing frame 4 are respectively formed by two, three and four regular octagonal plates which are arranged in parallel into a whole, the upper and lower edges form a wavy wave surface, a splicing groove II 8 is respectively arranged at the peak surface and the valley surface of the wave surface, a splicing groove I6 and a splicing protrusion 7 are respectively arranged at the two ends of the two-coupling splicing frames, the three-coupling splicing frame and the four-coupling splicing frame, a battery cell limit column 9 is arranged at the four-periphery of the inner surface of each regular octagonal frame, the battery cell limit column 9 is an arc-shaped separation blade positioned at four corners, the square limiting table 10 is arranged in a pole groove at the center of the regular octagonal frame of the two-way splicing frame 2, the three-way splicing frame 3 and the four-way splicing frame 4, the first splicing groove 6 is a dovetail groove, the splicing protrusion 7 is a trapezoidal guide rail matched with the dovetail groove, the second splicing groove 8 is a T-shaped groove, and the upper layer and the lower layer are spliced together to form an I-shaped groove. The connecting block 5 is an I-shaped block, and has two structures in the application, wherein the first structure is that a binding wire hole 55 is directly arranged on the outer side surface of the I-shaped block as shown in figure 3; secondly, as shown in fig. 4, a convex supporting block 52 is connected with the outer side surface of the i-shaped block, a wire passing clamp 53 is arranged on the upper surface and the lower surface of the supporting block, the outer side of the wire passing clamp 53 is not connected with the supporting block 52, a wire passing groove is formed between the wire passing clamp and the supporting block, and a wire pressing cover 54 is clamped on the side surface of the supporting block 52. The top surface and the bottom surface of the two connecting blocks 5 are respectively provided with a convex point 51 which is clamped with a groove 81 arranged on the inner wall of the second splicing groove 8 to prevent slipping.

As shown in fig. 5, the single-layer frame is formed by randomly assembling two-way splicing frames, three-way splicing frames and four-way splicing frames and splicing the first splicing groove 6 and the splicing protrusion 7 end to end, the wave surface peaks and valleys of the single-layer frame on the upper layer and the single-layer frame on the lower layer are overlapped, the two layers of splicing grooves II 8 are spliced through the connecting block 5, and the two-end short grooves formed by staggered stacking of the upper layer and the lower layer are filled with the half-way splicing frame 1 to form the clamping battery protection bracket. The multiple splicing grooves are spliced by the first I-shaped blocks, the second I-shaped blocks are partially spliced, the side faces of the supporting blocks 52 are higher than those of the supporting modules, and the stress on the battery cell pole 11 is avoided.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a based on big cylinder lithium ion battery group concatenation formula protective cradle which characterized in that: comprises a half-coupling splicing frame (1), a two-coupling splicing frame (2), a three-coupling splicing frame (3), a four-coupling splicing frame (4) and a connecting block (5), wherein the half-coupling splicing frame (1) is a regular octagonal frame which is divided into a half-coupling splicing frame A and a half-coupling splicing frame B in half, a splicing groove I (6) is arranged on the side edge of the half-coupling splicing frame A, a splicing protrusion (7) is arranged on the side edge of the half-coupling splicing frame B, the two-coupling splicing frame (2), the three-coupling splicing frame (3) and the four-coupling splicing frame (4) are respectively formed by two, three or four regular octagonal plates which are parallel into a whole, the upper and lower edges form a wavy surface, two (8) splicing grooves are respectively arranged at the peak surface and valley surface positions of the wavy surface, a first splicing groove (6) and a splicing protrusion (7) are respectively arranged at the two ends of the two-coupling splicing frames, the three-coupling splicing frame and the four-coupling splicing frame, and the four-coupling frame is provided with a battery cell limit column (9) at the four peripheral edge of the inner surface of each regular octagonal frame, the single-layer frame is formed by splicing a first splicing groove (6) and a splicing protrusion (7) in an arbitrary assembly mode of a double-layer splicing frame, a triple splicing frame and a quadruple splicing frame end to end, the wave surface peaks and valleys of the single-layer frame on the upper layer and the lower layer are overlapped, a second two-layer splicing groove (8) is spliced through a connecting block (5), and a half-joint splicing frame (1) is filled and spliced at the two ends of the staggered and stacked upper and lower layer frames to form a clamping battery protection support.

2. The spliced protective bracket based on the large-column lithium ion battery pack as claimed in claim 1, is characterized in that: the first splicing groove (6) is a dovetail groove, and the splicing protrusion (7) is a trapezoidal guide rail matched with the dovetail groove.

3. The spliced protective bracket based on the large-column lithium ion battery pack as claimed in claim 1, is characterized in that: the splicing groove II (8) is a T-shaped groove, the upper layer and the lower layer are spliced together to form an I-shaped groove, and the connecting block (5) is an I-shaped block.

4. The spliced protective bracket based on the large-column lithium ion battery pack as claimed in claim 3, wherein: salient points (51) are respectively arranged on the top surface and the bottom surface of the connecting block (5), grooves (81) are formed in the inner walls of the splicing grooves II (8), and the salient points (51) are connected with the grooves (81) in a clamping mode.

5. The spliced protective bracket based on the large-column lithium ion battery pack as claimed in claim 1, is characterized in that: the outer side face of the connecting block (5) is integrally provided with a convex supporting block (52), the upper surface and the lower surface of the supporting block are provided with a wire passing clamp (53), the outer side of the wire passing clamp (53) is not connected with the supporting block (52), and a wire passing groove is formed between the wire passing clamp and the supporting block.

6. The spliced protective bracket based on the large-column lithium ion battery pack as claimed in claim 5, wherein: the side surface of the supporting block (52) is clamped with a wire pressing cover (54).

7. The spliced protective bracket based on the large-column lithium ion battery pack as claimed in claim 1, is characterized in that: and a binding hole (55) is formed in the outer side surface of the connecting block (5).

8. The spliced protective bracket based on the large-column lithium ion battery pack as claimed in claim 1, is characterized in that: the battery cell excircle limiting column (9) is an arc-shaped separation blade located in four corner directions.

9. The spliced protective bracket based on the large-column lithium ion battery pack as claimed in claim 1, is characterized in that: and a square limiting table (10) is arranged in a pole groove at the center of the regular octagonal frame of the two-way splicing frame (2), the three-way splicing frame (3) and the four-way splicing frame (4).