CN218414772U

CN218414772U - Lithium battery module

Info

Publication number: CN218414772U
Application number: CN202223364457.XU
Authority: CN
Inventors: 张君楠; 张海成; 张天成; 董文君; 吴振
Original assignee: Shandong Wina Green Power Technology Co ltd
Current assignee: Shandong Wina Green Power Technology Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-01-31
Anticipated expiration: 2032-12-15

Abstract

The utility model discloses a lithium battery module, concretely relates to battery field, including box, top cap and battery piece, box internally mounted has a plurality of battery pieces, and the box top is provided with the top cap, and the top cap bottom meets with a plurality of battery pieces, and the bolt has installation component in the box, installs a plurality of isolation component in the installation component, all installs the battery piece in each isolation component, and one side bolt of installation component has fixed subassembly, and fixed subassembly one side crimping is on the isolation component side. The utility model discloses have and keep apart between the battery piece that can install in the battery module, be convenient for dispel the heat to the battery, and the radiating efficiency is high, simultaneously, can solve the battery and expand the package and lead to the mutual problem of extrudeing between the battery.

Description

Lithium battery module

Technical Field

The utility model relates to a battery technology field especially relates to a lithium battery module.

Background

Most of the existing lithium batteries are 18650 lithium batteries, 26650 lithium batteries, aluminum-shell square lithium batteries, soft package lithium batteries and the like. In order to meet the energy density requirement of the battery pack, the arrangement of lithium batteries in the battery pack is very tight, so that heat in the battery pack is easy to accumulate, when the heat of a part of batteries is accumulated to a certain degree, a thermal runaway phenomenon can be caused, the spreading of the thermal runaway phenomenon can cause the temperature of other normally working batteries to rise rapidly, and therefore the thermal runaway of the whole battery pack is caused, and even property and safety hazards are brought, so that the problem to be solved by the battery module is the heat dissipation problem.

Patent application publication number CN 210516830U's utility model discloses a lithium cell module, including the pinch-off blades, the side arm-tie, gather the line plug, utmost point ear seat and electric core, electric core is equipped with a plurality of, and be the rectangle form and arrange side by side, constitute the group battery through parallelly connected, utmost point ear safety cover is installed at the top of group battery, the pinch-off blades is located the left and right sides of group battery, the side arm-tie is located the front and back both sides of group battery, the pinch-off blades firmly press from both sides the group battery through the side arm-tie and adorn in inside, gather the line plug and install in the middle of the top of pinch-off blades, one side that the line plug of gathering is close to the group battery is equipped with the collection line of connecting the positive negative pole of each electric core, the collection line is located the inside of utmost point ear safety cover, utmost point ear seat is in one side of gathering the line plug, and with the top fixed connection of pinch-off blades. This lithium battery module adopts rectangle aluminium system clamping plate in limited space, increases the capacity of battery to reduce the welding point, practice thrift manufacturing cost.

However, when the structure is in actual use, the batteries in the battery module are all tightly connected with each other, so that heat is easy to accumulate, and heat is not easy to dissipate. In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect, an object of the utility model is to provide a lithium battery module, it has solved the equal mutual zonulae occludens of battery in the battery module for the heat is gathered easily, and the heat is difficult to the problem that scatters and disappears.

In order to realize the above-mentioned purpose, the utility model provides a lithium battery module, including box, top cap and battery piece, box internally mounted has a plurality of battery pieces, and the box top is provided with the top cap, and the top cap bottom meets with a plurality of battery pieces, and the bolt has the installation component in the box, installs a plurality of isolation components in the installation component, all installs the battery piece in each isolation component, and one side bolt of installation component has fixed subassembly, and fixed subassembly one side crimping is on the isolation component side.

Furthermore, the mounting assembly comprises a mounting plate which is bolted to the bottom end in the box body; the two support plates are symmetrically welded on two sides of the top end of the mounting plate respectively; the supporting plate is welded at the tops of the two supporting plates; the clamping frame is welded on the supporting plate; the heat dissipation cavity is arranged in a gap formed by the connection among the mounting plate, the two support plates and the support plate; the fan is installed in the heat dissipation cavity.

Furthermore, a plurality of heat dissipation holes are uniformly formed in the supporting plate, and the bottom ends of the heat dissipation holes are communicated with the heat dissipation cavity.

Furthermore, the isolation assembly comprises a battery box, and the battery box is slidably arranged in the clamping frame; the two ejector blocks are symmetrically welded on the inner wall of the top end of the battery box; the two clamping plates are symmetrically welded at the bottom end of the battery box, and the distance between the two clamping plates is equal to the distance between the two jacking blocks; and the transverse plate is welded in the middle of the bottom end of the battery box.

Furthermore, the fixing component comprises a mounting frame which is bolted on one side of the mounting component, the section of the mounting frame is matched with the section of the whole mounting component in the direction, and one side of the mounting frame is provided with a groove matched with the clamping frame; one end of each spring is uniformly arranged in the groove; the push plate is inserted in the clamping frame in a sliding mode, and one side of the push plate is connected with the other ends of the springs.

Furthermore, the bottom ends of the two sides of the box body are symmetrically provided with heat dissipation windows, and the inner sides of the two heat dissipation windows are connected with the two ends of the heat dissipation cavity.

An object of the utility model is to provide a lithium battery module supports the setting in the battery box with the battery block through two kicking blocks, two splint and a diaphragm, compares with prior art for produce the clearance between battery block both sides and the battery box inner wall, still be provided with heat dissipation chamber, backup pad and fan in the battery box, from upwards dispelling the heat down, through setting up a plurality of springs and push pedal on fixed subassembly, make the push pedal have certain elasticity under the cooperation of spring. The utility model has the advantages that: gaps are formed between the battery blocks and the inner wall of the battery box, so that the heat dissipation of the battery blocks is facilitated, and meanwhile, when the battery blocks are expanded, the gaps on two sides can be expanded, so that the phenomenon that batteries in the traditional battery module are tightly arranged to cause mutual extrusion is avoided, and a fan can ventilate from bottom to top to dissipate heat from heat dissipation holes in the supporting plate; the push pedal has the elasticity can carry out the top to a plurality of isolation component of installation in the centre gripping frame and connect, provides certain accommodation space, and conveniently fixes isolation component.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the internal top structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

fig. 4 is a schematic perspective view of the mounting assembly of the present invention;

fig. 5 is a schematic perspective view of the fixing assembly of the present invention;

fig. 6 is a schematic view of the tangent plane structure of the isolation assembly of the present invention.

In the figure: 1-a box body; 2-a top cover; 3-mounting component, 301-mounting plate, 302-support plate, 303-support plate, 304-clamping frame, 305-heat dissipation cavity, 306-fan; 4-isolation component, 401-battery box, 402-top block, 403-clamping plate, 404-transverse plate; 5-a battery block; 6-fixing component, 601-mounting frame, 602-spring, 603-push plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The lithium battery module comprises a box body 1, a top cover 2 and battery blocks 5, wherein the plurality of battery blocks 5 are arranged inside the box body 1, the top cover 2 is arranged at the top end of the box body 1, the bottom end of the top cover 2 is connected with the plurality of battery blocks 5, an installation component 3 is bolted in the box body 1, a plurality of isolation components 4 are installed in the installation component 3, the battery blocks 5 are installed in the isolation components 4, a fixing component 6 is bolted on one side of the installation component 3, and one side of the fixing component 6 is in compression joint with the side face of the isolation component 4.

As shown in fig. 3 and 4, the mounting assembly 3 includes a mounting plate 301, and the mounting plate 301 is bolted to the bottom end inside the cabinet 1.

And the two support plates 302 are symmetrically welded on two sides of the top end of the mounting plate 301 respectively.

And a support plate 303, wherein the support plate 303 is welded on the top of the two support plates 302.

And a clamping frame 304, wherein the clamping frame 304 is welded on the supporting plate 303.

The clamping frame 304 is cooperatively connected with the support plate 303 such that the isolation assembly 4 can be slidably mounted in the clamping frame 304 and the bottom end is supported by the support plate 303.

And a heat dissipation cavity 305, wherein the heat dissipation cavity 305 is arranged in a gap formed by the connection among the mounting plate 301, the two support plates 302 and the support plate 303.

And the fan 306 is arranged in the heat dissipation cavity 305.

The heat generated by the battery block 5 enters the heat dissipation holes formed in the support plate 303 from the bottom ends of the gaps at the two sides, and is discharged by the fan 306, so that the heat dissipation efficiency is improved.

As shown in fig. 4, a plurality of heat dissipation holes are uniformly formed on the supporting plate 303, and bottom ends of the heat dissipation holes are communicated with the heat dissipation cavity 305, so as to dissipate heat generated by the battery block 5 in the isolation assembly 4 supported on the supporting plate 303.

As shown in fig. 2 and 6, the isolation assembly 4 includes a battery case 401, and the battery case 401 is slidably mounted in the holding frame 304.

Two top blocks 402, each top block 402 is symmetrically welded on the inner wall of the top end of the battery box 401.

Two clamping plates 403, wherein the clamping plates 403 are symmetrically welded at the bottom end of the battery box 401, and the distance between the two clamping plates 403 is equal to the distance between the two top blocks 402.

And the transverse plate 404 is welded to the middle of the bottom end of the battery box 401.

The two top blocks 402 and the two clamping plates 403 can clamp two sides of the battery block 5, and the transverse plate 404 at the bottom end supports the battery block 5.

As shown in fig. 2, 3 and 5, the fixing assembly 6 includes a mounting frame 601, the mounting frame 601 is bolted to one side of the mounting assembly 3, the cross section of the mounting frame 601 matches with the cross section of the whole mounting assembly 3, and one side of the mounting frame is provided with a groove matching with the clamping frame 304.

A plurality of springs 602, one end of each spring 602 is uniformly arranged in the groove.

The push plate 603, the push plate 603 is inserted in the holding frame 304 in a sliding manner, and one side of the push plate is connected with the other end of the plurality of springs 602.

As shown in fig. 1 and 2, the bottom ends of the two sides of the case 1 are symmetrically provided with heat dissipation windows, and the inner sides of the two heat dissipation windows are connected with the two ends of the heat dissipation chamber 305, so that the heat generated by the battery block 5 is finally discharged from the heat dissipation windows of the two sides.

The utility model discloses the theory of operation: when the lithium battery module is used, the battery blocks 5 are respectively installed in the isolation assemblies 4, then the isolation assemblies 4 provided with the battery blocks 5 are respectively placed in the installation assemblies 3, one sides of the installation assemblies 3 are bolted with the fixing assemblies 6, the isolation assemblies 4 are fixed, finally the installation assemblies 3 are installed in the box body 1, the top end of the installation assembly is provided with the top cover 2, so that the upper bottom of the top cover 2 is respectively connected with the electrodes of the battery blocks 5, and a novel lithium battery module is formed;

in the using process, the battery block 5 is supported in the battery box 401 through the two top blocks 402, the two clamping plates 403 and the transverse plate 404 in the isolation assembly 4, so that gaps are generated between the two sides of the battery block 5 and the inner wall of the battery box 401, the heat dissipation of the battery block 5 is facilitated, and meanwhile, when the battery block 5 is subjected to bag expansion, the battery block 5 can be expanded into the gaps on the two sides, so that the phenomenon that the traditional battery blocks 5 are tightly connected to cause mutual extrusion is avoided;

meanwhile, a heat dissipation cavity 305, a support plate 303 and a fan 306 are arranged in the mounting assembly 3, so that heat generated by the battery block 5 enters heat dissipation holes formed in the support plate 303 from the bottom ends of the gaps at the two sides and is discharged by the fan 306, and the heat dissipation efficiency is improved;

finally, a plurality of springs 602 and push pedal 603 that set up on the fixed subassembly 6 for push pedal 603 has certain elasticity under the cooperation of spring 602, thereby can carry out the top to a plurality of isolation subassemblies 4 of installation in the centre gripping frame 304 and connect, provides certain accommodation space, and conveniently fixes isolation subassembly 4.

The utility model discloses having and keeping apart between the battery piece 5 that can install in the battery module, being convenient for dispel the heat to the battery, and the radiating efficiency is high, simultaneously, can prevent that the battery from expanding the package and leading to the mutual phenomenon of extrudeing between the battery.

To sum up, the utility model discloses a setting that two kicking blocks 402, two splint 403 and a diaphragm 404 supported battery piece 5 in battery box 401 compares with prior art for produce the clearance between 5 both sides of battery piece and the battery box 401 inner wall, still be provided with heat dissipation chamber 305, backup pad 303 and fan 306 in the battery box 401, from upwards dispelling the heat down, through set up a plurality of springs 602 and push pedal 603 on fixed subassembly 6, make push pedal 603 have certain elasticity under spring 602's cooperation. To sum up, the utility model has the advantages that: a gap exists between the battery block 5 and the inner wall of the battery box 401, so that the heat dissipation of the battery block 5 is facilitated, and meanwhile, when the battery block 5 expands, the gaps on two sides can be expanded, so that the phenomenon that batteries in a traditional battery module are tightly arranged to cause mutual extrusion is avoided, and the fan 306 can ventilate from bottom to top and dissipate heat from heat dissipation holes in the support plate 303; the push plate 603 has the elasticity and can carry out the top connection to a plurality of isolation components 4 installed in the clamping frame 304, provides a certain adjustment space, and conveniently fixes the isolation components 4.

Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.

Claims

1. The utility model provides a lithium battery module, includes box, top cap and battery piece, and box internally mounted has a plurality of battery pieces, and the box top is provided with the top cap, and the top cap bottom meets its characterized in that with a plurality of battery pieces: the bolt has connect the installation component in the box, installs a plurality of isolation components in the installation component, all installs the battery piece in each isolation component, and one side bolt of installation component has connect fixed subassembly, and fixed subassembly one side crimping is on the isolation component side.

2. The lithium battery module as claimed in claim 1, wherein: the mounting assembly comprises a mounting plate which is bolted at the bottom end in the box body; the two support plates are symmetrically welded on two sides of the top end of the mounting plate respectively;

the supporting plate is welded at the tops of the two supporting plates; the clamping frame is welded on the supporting plate; the heat dissipation cavity is arranged in a gap formed by the connection among the mounting plate, the two support plates and the support plate; the fan is installed in the heat dissipation cavity.

3. The lithium battery module as claimed in claim 2, wherein: a plurality of heat dissipation holes are uniformly formed in the supporting plate, and the bottom ends of the heat dissipation holes are communicated with the heat dissipation cavity.

4. The lithium battery module as claimed in claim 1, wherein: the isolation assembly comprises a battery box, and the battery box is slidably arranged in the clamping frame; the two jacking blocks are symmetrically welded on the inner wall of the top end of the battery box; the two clamping plates are symmetrically welded at the bottom end of the battery box, and the distance between the two clamping plates is equal to the distance between the two jacking blocks; and the transverse plate is welded in the middle of the bottom end of the battery box.

5. The lithium battery module as claimed in claim 1, wherein: the fixing component comprises a mounting frame, the mounting frame is bolted on one side of the mounting component, the cross section of the mounting frame is matched with the overall cross section of the mounting component, and a groove matched with the clamping frame is formed in one side of the mounting frame; one end of each spring is uniformly arranged in the groove; the push plate is inserted in the clamping frame in a sliding mode, and one side of the push plate is connected with the other ends of the springs.

6. The lithium battery module as claimed in claim 1, wherein: the bottom ends of the two sides of the box body are symmetrically provided with heat dissipation windows, and the inner sides of the two heat dissipation windows are connected with the two ends of the heat dissipation cavity.