CN220121925U - Heat conduction structure and battery module - Google Patents

Abstract

The utility model discloses a heat conduction structure and a battery module. The heat conduction structure is located between aluminium bar and the liquid cooling board in the battery module, includes: the support frame is provided with a glue filling hole, the through hole is used for exposing an explosion-proof valve of the battery, and the glue filling slot hole is arranged corresponding to the aluminum bar; and the heat conduction structural adhesive is arranged in the adhesive filling hole, is clamped between the aluminum bar and the liquid cooling plate and is used for transferring heat of the aluminum bar to the liquid cooling plate. The heat conduction structure can directly transfer the heat on the aluminum bar to the liquid cooling plate, so that the heat transfer efficiency is improved.

Description

Heat conduction structure and battery module

Technical Field

The utility model relates to the technical field of batteries, in particular to a heat conduction structure and a battery module.

Background

In recent years, new energy automobiles have been developed dramatically, especially those powered by lithium batteries. In order to provide enough electric quantity, when the lithium battery is applied to a new energy automobile, the lithium battery is usually arranged in the automobile in a module mode.

The battery module generally comprises a battery box, a battery, an aluminum bar and a liquid cooling plate, wherein the aluminum bar is connected to a pole of the battery and used for transmitting electric quantity and voltage information of the battery, and the liquid cooling plate is used for cooling the battery so as to improve the service safety and service life of the battery.

In the prior art, the liquid cooling plate cools the shell of the battery, but because the heating position is at the winding core, the cooling mode efficiency of the battery by adopting the liquid cooling plate is lower.

Disclosure of Invention

In order to solve at least one of the problems in the prior art, according to one aspect of the present utility model, there is provided a heat conduction structure between an aluminum bar and a liquid cooling plate in a battery module, comprising: the support frame is provided with a glue filling hole, and the glue filling hole is arranged corresponding to the aluminum bar; the heat conduction structure glue is arranged in the glue filling hole, connected between the aluminum bar and the liquid cooling plate, and used for transferring heat of the aluminum bar to the liquid cooling plate.

Therefore, the aluminum bar is arranged between the aluminum bar and the liquid cooling plate, so that the aluminum bar and the liquid cooling plate can be separated, the risk of electric conduction caused by direct contact between the aluminum bar and the liquid cooling plate is avoided, and meanwhile, the support frame is provided with the through hole, so that the explosion-proof valve of the battery can be exposed, the safety of the battery in the use process is ensured, namely, the safety of the battery module in the use process is ensured; the heat conduction structure is glued and can be connected liquid cooling plate and aluminium bar to can be directly with the heat transfer on the aluminium bar to the liquid cooling plate, thereby promoted heat transfer efficiency, because aluminium bar is the utmost point post fixed connection with the battery, utmost point post fixed connection is in the book core of battery, consequently the battery is in the in-process of using, the heat that produces in the book core can be in proper order through utmost point post, aluminium bar, heat conduction structure glue transfer to the liquid cooling plate, in order to exchange heat through the liquid cooling plate, consequently the liquid cooling plate can directly dispel the heat to the inside book core, thereby promoted the heat exchange efficiency of battery, higher cooling efficiency has, make the battery have higher safety in utilization and longer life.

In some embodiments, the support frame is provided with a plurality of glue filling grooves which are arranged in a mutually separated mode, the glue filling grooves are arranged in a row mode, and one glue filling hole corresponds to one aluminum bar.

In some embodiments, the support frame is further provided with a through hole, and the through hole is arranged at one side of the glue filling hole and used for exposing the explosion-proof valve of the battery.

In some embodiments, the support frame is provided with a plurality of through holes, the through holes are arranged at intervals, and one through hole corresponds to an explosion-proof valve of one battery.

In some embodiments, the support frame is further provided with a glue containing plate in each glue filling hole, and the Cheng Jiaoban extends into the glue filling holes for supporting the heat-conducting structural glue. In some embodiments, the glue containing plate is provided with a first wire passing notch, and the first wire passing notch is used for the transmission wire to pass through.

In some embodiments, a limiting frame is disposed on a side of the support frame facing the liquid cooling plate, and the limiting frame surrounds the outer side of the through hole and is used for limiting the trend of the aluminum bar transmission line.

In some embodiments, the limiting frame comprises an inner layer frame positioned on the inner side and an outer layer frame surrounding the outer layer frame, and a wiring space of the transmission line is arranged between the outer layer frame and the inner layer frame.

In some embodiments, the outer layer is provided with a plurality of second wire passing notches, and one second wire passing notch is arranged corresponding to one glue filling hole.

In some embodiments, the outer layer frame includes a plurality of wire pressing frames, a plurality of the wire pressing frames include two rows that set up relatively, two rows the wire pressing frames are followed the width direction of battery module is located the opposite both sides of through-hole, every two be between the wire pressing frames be one the second wire passing breach.

In some embodiments, the wire pressing frame comprises a vertical plate and a horizontal plate, the vertical plate extends towards the direction of the liquid cooling plate, and the horizontal plate is arranged at one end, close to the liquid cooling plate, of the vertical plate and extends towards the inside of the wire running space.

In some embodiments, a wire clamping structure is disposed on a side of the support frame facing the liquid cooling plate, and the wire clamping structure is disposed corresponding to the second wire passing notch and is used for clamping the transmission wire, so that the transmission wire can extend into the second wire passing notch.

According to another aspect of the present utility model, there is provided a battery module including a case; the battery pack is arranged in the box body; the aluminum bar is arranged in the box body and connected with the pole of the battery pack; the liquid cooling plate is covered on the box body; above-mentioned heat conduction structure, heat conduction structure locates in the box, and connect in between aluminium bar with the liquid cooling board.

Therefore, the heat generated in the winding core can be sequentially transferred to the liquid cooling plate through the pole, the aluminum bar and the heat conducting structural adhesive to exchange heat through the liquid cooling plate, so that the liquid cooling plate can directly dissipate heat of the winding core, thereby improving the heat exchange efficiency of the battery, having higher cooling efficiency and enabling the battery module to have higher use safety and longer service life; meanwhile, the liquid cooling plate has the effect of cooling and also has the effect of a box cover by adopting the liquid cooling plate cover, so that the box cover is omitted, the whole battery module is convenient to mount, the battery module is higher in efficiency, the space utilization rate in the box body can be improved, the weight of a battery pack is reduced, and the energy density of the battery pack is improved.

In some embodiments, the battery module further comprises a thermally conductive silicone pad disposed between the thermally conductive structure and the liquid cooling plate.

In some embodiments, the liquid cooling plate is provided with a plurality of liquid receiving tanks towards the direction of the battery pack.

In some embodiments, the liquid cooling plate is provided with a dodging groove corresponding to the through hole, and the dodging groove protrudes away from the battery pack.

Drawings

Fig. 1 is a schematic structural diagram of a heat conducting structure according to a first embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the portion I of FIG. 1;

fig. 3 is a schematic view illustrating a structure of a battery module according to a second embodiment of the present utility model;

fig. 4 is an exploded view of the battery module of fig. 3;

FIG. 5 is an enlarged schematic view of the portion II in FIG. 4;

fig. 6 is a schematic diagram of the battery module in fig. 3 after the liquid cooling plate is hidden.

Wherein the reference numerals have the following meanings:

100-heat conduction structure, 10-support frame, 11-through hole, 12-glue filling hole, 13-glue containing plate, 131-first wire passing notch, 14-surrounding plate, 141-third wire passing notch, 20-heat conduction structure glue, 30-limiting frame, 31-inner layer frame, 32-outer layer frame, 321-wire pressing frame, 3211-vertical plate, 3212-horizontal plate, 322-second wire passing notch, 33-wire space, 40-wire clamping structure, 200-battery module, 210-box, 220-battery pack, 240-liquid cooling plate, 241-liquid receiving groove, 242-avoiding groove and 250-transmission wire.

Detailed Description

For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

The utility model is described in further detail below with reference to the accompanying drawings.

Referring to fig. 1, fig. 2 and fig. 5, a heat conducting structure 100 according to a first embodiment of the present utility model includes a support frame 10 and a heat conducting structural adhesive 20. The heat conducting structure 100 is disposed between the aluminum bar and the liquid cooling plate 240 in the battery module 200, and is used for connecting the aluminum bar and the liquid cooling plate 240 and for transferring heat between the aluminum bar and the liquid cooling plate 240 when in use.

Referring to fig. 1, a through hole 11 and a glue filling hole 12 are provided on a supporting frame 10, the through hole 11 is used for exposing an explosion-proof valve of a battery, and the glue filling hole 12 is arranged corresponding to a pole of the battery; the heat-conducting structural adhesive 20 is disposed in the adhesive filling hole 12, connected between the aluminum bar and the liquid cooling plate 240, and used for transferring heat of the aluminum bar to the liquid cooling plate 240.

The heat conducting structure 100 is arranged between the aluminum bar and the liquid cooling plate 240, so that the aluminum bar and the liquid cooling plate 240 can be separated, the risk of electric conduction caused by direct contact between the aluminum bar and the liquid cooling plate 240 is avoided, meanwhile, the through hole 11 is arranged on the support frame 10, and an explosion-proof valve of a battery can be exposed, so that the safety of the battery in the use process is ensured, namely, the safety of the battery module in the use process is ensured; the heat conduction structure is glued 20 and can be connected liquid cooling board 240 and aluminium bar to can be directly with the heat transfer on the aluminium bar to liquid cooling board 240, thereby promoted heat transfer efficiency, because aluminium bar is the utmost point post fixed connection with the battery, utmost point post fixed connection is in the book core of battery, consequently the battery is in the in-process of using, the heat that produces in the book core can be in proper order through utmost point post, aluminium bar, heat conduction structure glue 20 transfer to liquid cooling board 240, with exchange heat through liquid cooling board 240, consequently liquid cooling board 240 can directly dispel the heat to the inside book core, thereby promoted the heat exchange efficiency of battery, higher cooling efficiency has, make the battery have higher safety in utilization and longer life.

Referring to fig. 5, in one embodiment of the present utility model, since the battery packs 220 in the battery module 200 are sequentially arranged in the thickness direction of the individual batteries when being arranged, in order to improve the structural strength of the support frame 10, when the through holes 11 are provided in the support frame 10, referring to fig. 1 and 2, a plurality of through holes 11 are provided in the support frame 10, and the through holes 11 are spaced apart from each other and arranged in a row so as to correspond to the explosion-proof valves of the battery packs 220 arranged in a row, so that the explosion-proof valve of one battery is exposed from one through hole 11, and thus, when the battery encounters thermal runaway, the explosion-proof valve can be opened at the through hole 11, and electrolyte can flow out, thereby improving the use safety of the battery. In other embodiments, in order to facilitate the forming of the through hole 11, only one through hole 11 with the length direction being the arrangement direction of the battery pack 220 may be provided, and at this time, the explosion-proof valves of the respective batteries may also be exposed from the through hole 11, so that only one through hole 11 is formed, thereby facilitating the forming of the through hole 11.

Specifically, the through hole 11 in the present embodiment is also provided in a kidney shape corresponding to the kidney shape of the explosion-proof valve, so that the explosion-proof valve can be just exposed from the through hole 11. In other embodiments, other shapes of the through hole 11 may be provided, for example, a square shape, a trapezoid shape, or the like, so that the explosion-proof valve may be exposed, which is not limited herein.

Referring to fig. 1 and 2, in an embodiment of the present utility model, in order to improve the structural strength of the support frame 10 and the position corresponding to the post of the battery, a plurality of glue filling holes 12 are formed on the support frame 10, and the glue filling holes 12 are arranged on one side of the through hole 11 in a row, so that the glue filling holes 12 are arranged in a mutually separated manner, each glue filling hole 12 corresponds to the post of the battery, so that the heat conducting structural glue 20 just fills the position of the post, and the heat on the aluminum bar is transferred to the liquid cooling plate 240, so that the heat transfer effect can be achieved, and meanwhile, the structure of the support frame 10 is connected between every two adjacent glue filling holes 12, so that the whole support frame 10 can have stronger structural strength.

Specifically, since the individual cells in the battery pack 220 are arranged in the thickness direction of the cells, the posts in the battery pack 220 are arranged in a row, and when the glue filling holes 12 are arranged at the positions of the posts, each glue filling hole 12 covers the posts of each adjacent two cells, so that the heat conductive structural glue 20 can have a sufficient contact area with aluminum bars, and can transfer heat to the liquid cooling plate 240.

It can be understood that, since each battery has the positive electrode column and the negative electrode column separately arranged along the length direction of the battery, when the column of glue filling holes 12 are arranged on the support frame 10, two columns of glue filling holes 12 are arranged on the support frame 10 corresponding to the column of positive electrode column and the column of negative electrode column, and one column of glue filling holes 12 corresponds to one column of electrode column, so that by arranging two columns of glue filling holes 12, the heat transferred by aluminum bars is fully transferred to the liquid cooling plate 240 through the heat conducting structural glue 20 in the glue filling holes 12, and the heat dissipation effect of the battery is further improved.

The heat-conducting structural adhesive 20 is in a semi-solid state during filling, is solidified into a solid state in the adhesive filling holes 12 after being cooled, and is adhered to two surfaces of the aluminum bar and the liquid cooling plate 240, so that the aluminum bar and the liquid cooling plate 240 are connected together, referring to fig. 2, in order to ensure the filling effect of the heat-conducting structural adhesive 20 in the adhesive filling holes 12, the support frame 10 is further provided with adhesive containing plates 13 in each adhesive filling hole 12, the adhesive containing plates 13 extend into the adhesive filling holes 12 and are used for supporting the heat-conducting structural adhesive 20, and therefore, when the semi-solid adhesive is driven into the adhesive filling holes 12, the adhesive is supported by Cheng Jiaoban 13, so that the adhesive is prevented from penetrating into the lower part of the support frame 10.

In addition, as Cheng Jiaoban 13 sets up in filling hole 12, and aluminium bar is connected with transmission line 250, in order to be convenient for the winding of transmission line 250 to establish, be equipped with first line breach 131 on flourishing offset plate 13, first line breach 131 is used for supplying transmission line 250 to wear to establish to through the mode that sets up first line breach 131, so that connect in the output of transmission line 250 of aluminium bar, be convenient for extend the laying at transmission line 250 toward support frame 10 upper surface.

As can be appreciated, referring to fig. 2, in order to ensure that the solidified heat-conducting structural adhesive 20 has a certain thickness, the supporting frame 10 is further provided with a surrounding plate 14 at each adhesive filling hole 12, and the surrounding plate 14 extends towards the direction of the liquid cooling plate 240 and is arranged around the adhesive filling holes 12, so that by providing the surrounding plate 14, the surrounding plate 14 is matched with the adhesive filling holes 12 to increase the adhesive filling height, and when the adhesive filling holes 12 are filled with adhesive, more adhesive can be injected into the adhesive filling holes 12, so that the heat-conducting structural adhesive 20 can have a sufficient thickness to ensure the structural strength in the use process, thereby ensuring the heat transfer effect between the aluminum bar and the liquid cooling plate 240.

It will be appreciated that, corresponding to the first wire passing notch 131, the surrounding board 14 is correspondingly provided with a third wire passing notch 141, so as to facilitate the extension of the transmission wire 250.

Referring to fig. 1, 2 and 5, in one embodiment of the present utility model, since the aluminum bar is connected with the transmission line 250 to transmit the service condition of the battery, such as electric quantity, electric heat, temperature, etc., through the transmission line 250, in order to enable the transmission line 250 to be orderly arranged on the support frame 10, a limit frame 30 is disposed on one side of the support frame 10 facing the liquid cooling plate 240, and the limit frame 30 extends towards the direction of the liquid cooling plate 240 and surrounds the outside of the through hole 11, for limiting the trend of the transmission line 250 of the aluminum bar, so that the limit frame 30 is disposed to extend the transmission line 250, thereby limiting the trend of the transmission line 250, enabling the transmission line 250 to be orderly arranged, enabling the transmission line 250 to orderly extend towards one side of the battery module 200, so as to be connected to the BMS located at one end of the battery module 200, and avoiding disordered placement on the upper surface of the support frame 10.

Specifically, in order to fully utilize the space on the support frame 10 and the space in the battery box in the battery module 200, the limiting frame 30 in the embodiment includes an inner layer frame 31 located at the inner side and an outer layer frame 32 surrounding the inner layer frame 31, and a routing space 33 of the transmission line 250 is arranged between the outer layer frame 32 and the inner layer frame 31, so that the limiting frame 30 is arranged in a manner of separating the inner layer frame 31 and the outer layer frame 32, and the routing space 33 is arranged between the two, so that the transmission line 250 is conveniently limited in the routing space 33 between the two, thereby facilitating the placement of the wire harness; simultaneously through encircle the inlayer frame 31 outside the through-hole 11 setting for inlayer frame 31 has certain height in the position of explosion-proof valve, when the battery takes place thermal runaway, can block the electrolyte that thermal runaway flows, can make the electrolyte realize backward flow after the thermal runaway, reduces the risk that electrolyte thermal runaway takes place the diffusion.

In order to facilitate the wire harness to pass through the glue filling hole 12 and then pass through the wire space 33 of the limiting frame 30 along the preset route, the wire path of the transmission wire 250 is shortened, so that the transmission wire 250 passes through the wire space 33 in the shortest path, and therefore, a wire passing notch needs to be formed in the outer frame 32, specifically, since the support frame 10 is provided with a plurality of glue filling holes 12, a transmission wire 250 passes out of each glue filling hole 12, the outer frame 32 is provided with a plurality of second wire passing notches 322, and one second wire passing notch 322 is arranged corresponding to one glue filling hole 12, so that the transmission wire 250 can pass through the second wire passing notch 322 after passing out of each glue filling hole 12, extend in the wire space 33, and run to the BMS at one end in the battery box.

When the second wire passing notch 322 is provided in the outer frame 32, the second wire passing notch 322 may be formed by dividing the outer frame 32 into a plurality of pieces, or the second wire passing notch 322 may be formed by providing the through hole 11 in the outer frame 32, or the second wire passing notch 322 may be formed by digging out a partial notch in the top end portion of the outer frame 32. In an embodiment of the present utility model, the second wire passing notch 322 is formed in a manner of separating the outer layer frame 32 into a plurality of wire passing notches, specifically, referring to fig. 2, the outer layer frame 32 includes a plurality of wire pressing frames 321, the plurality of wire pressing frames 321 includes two rows disposed opposite to each other, and the two rows of wire pressing frames 321 are disposed at opposite sides of the through hole 11, that is, at opposite sides of the through hole 11 along the width direction of the battery module 200, wherein the width direction of the battery module 200 is the length direction of a single battery, and one second wire passing notch 322 is disposed between every two wire pressing frames 321, so that the forming of each wire pressing frame 321 is facilitated by disposing the outer layer frame 32 to include a plurality of wire pressing frames 321.

Specifically, in order to ensure the routing direction of the transmission line 250, the wire pressing frame 321 includes a vertical plate 3211 and a horizontal plate 3212, the vertical plate 3211 extends toward the direction of the liquid cooling plate 240, and the horizontal plate 3212 is disposed at one end of the vertical plate 3211 near the liquid cooling plate 240 and extends toward the routing space 33, so that when the transmission line 250 is disposed in the routing space 33, the transmission line 250 is pressed in the routing space 33 by blocking of the horizontal plate 3212 by setting the wire pressing frame 321 to include the horizontal plate 3212, so that the routing of the transmission line 250 can be ordered.

In addition, after the transmission line 250 passes through the glue filling hole 12, in order to enable the transmission line 250 to directly pass through the second line passing notch 322, in one embodiment of the present utility model, a clip line structure 40 is disposed on a side of the support frame 10 facing the liquid cooling plate 240, where the clip line structure 40 is disposed corresponding to the second line passing notch 322 and is used for clipping the transmission line 250 so that the transmission line 250 can extend into the second line passing notch 322, since the second line passing notch 322 is disposed corresponding to the glue filling hole 12, each clip line structure 40 is disposed corresponding to one glue filling hole 12, after the transmission line 250 passes out of the glue filling hole 12, the clip line structure 40 is used to limit the trend of the transmission line 250, so that the transmission line 250 directly passes through the second line passing notch 322, and meanwhile, the situation that the transmission line 250 is tilted when the battery module 200 moves during running of the vehicle or the transmission line 250 is avoided, so that the transmission line 250 can be stably placed on the support frame 10.

Referring to fig. 3 to 6, a battery module 200 according to a second embodiment of the utility model includes a case 210, a battery pack 220, an aluminum bar, a liquid cooling plate 240, and the heat conducting structure 100.

Wherein, the battery pack 220 and aluminum bar (not shown) are both disposed in the case 210; aluminum bars are connected to the poles of the battery pack 220; the liquid cooling plate 240 is covered on the box 210; the heat conducting structure 100 is disposed in the case 210 and connected between the aluminum bar and the liquid cooling plate 240.

According to the battery module 200, the heat conducting structure 100 is arranged in the box 210 so as to be connected between the aluminum bar and the liquid cooling plate 240, and the aluminum bar is fixedly connected with the pole of the battery, so that the pole is fixedly connected with the winding core in the battery, and in the use process of the battery, heat generated in the winding core can be sequentially transferred to the liquid cooling plate 240 through the pole, the aluminum bar and the heat conducting structure glue 20 so as to exchange heat through the liquid cooling plate 240, and the liquid cooling plate 240 can directly dissipate heat of the winding core, so that the heat exchange efficiency of the battery is improved, the higher cooling efficiency is achieved, and the battery module 200 has higher use safety and longer service life; meanwhile, by adopting the mode that the liquid cooling plate 240 covers the box body 210, the liquid cooling plate 240 has the effect of cooling and also has the effect of a box cover, the box cover is omitted, the whole battery module 200 is convenient to install, the battery module 200 is enabled to have higher efficiency, meanwhile, the space utilization rate in the box body 210 can be improved, the weight of a battery pack is reduced, and the energy density of the battery pack 220 is improved.

Wherein, in order to further promote the safety in utilization of battery module 200, battery module 200 still includes heat conduction silica gel pad 230, heat conduction silica gel pad 230 locates between heat conduction structure 100 and the liquid cooling board 240, thereby heat conduction silica gel pad 230 can be with the heat transfer of heat conduction structure 100 transfer to liquid cooling board 240 department, simultaneously, through setting up heat conduction silica gel pad 230, when battery module 200 is at the in-process of refrigerated, liquid cooling board 240 is at the in-process of cooling, the comdenstion water can only flow at the surface of heat conduction silica gel pad 230 when the surface of liquid cooling board 240, the comdenstion water that avoids the surface of liquid cooling board 240 to produce flows to heat conduction structure 100 in, take place the risk that the comdenstion water contacted the aluminium bar, thereby through setting up heat conduction silica gel pad 230, the safety in utilization of whole battery module 200 has further been promoted.

In addition, in order to further improve the use safety of the battery module 200, the liquid cooling plate 240 is provided with a plurality of liquid receiving grooves 241 toward the battery pack 220, so that when condensed water is generated on the surface of the liquid cooling plate 240, the condensed water can be received through the liquid receiving grooves 241.

The side of the liquid cooling plate 240 facing the heat-conducting silica gel pad 230 may be further coated with a heat-conducting insulating material, for example, graphene, which can not only realize insulation but also realize heat conduction, so that heat of the heat-conducting silica gel pad 230 can be transferred to the liquid cooling plate 240, and electrical insulation between the liquid cooling plate 240 and aluminum bar can be realized.

Referring to fig. 3 and 4, in an embodiment of the utility model, in order to further improve the use safety of the battery module 200, the liquid cooling plate 240 is provided with a avoiding groove 242 corresponding to the through hole 11, and the avoiding groove 242 protrudes away from the battery pack 220, because the through hole 11 is used for exposing the explosion-proof valve, that is, the liquid cooling plate 240 is provided with the avoiding groove 242 at the position corresponding to the explosion-proof valve, when the battery is out of control, so as to facilitate the opening of the explosion-proof valve and ensure the use safety of the battery.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (16)

1. Heat conduction structure locates between aluminium bar and the liquid cooling board in the battery module, its characterized in that includes:

the support frame is provided with a glue filling hole, and the glue filling hole is arranged corresponding to the aluminum bar;

and the heat conduction structural adhesive is arranged in the adhesive filling hole, is clamped between the aluminum bar and the liquid cooling plate, and is used for transferring the heat of the aluminum bar to the liquid cooling plate.

2. The heat conducting structure according to claim 1, wherein the support frame is provided with a plurality of glue filling holes which are arranged at intervals, a plurality of glue filling Kong Chenglie are arranged, and one glue filling hole corresponds to one aluminum bar.

3. The heat conducting structure according to claim 1 or 2, wherein the support frame is further provided with a through hole, and the through hole is arranged at one side of the glue filling hole, so that the explosion-proof valve of the battery is exposed.

4. A heat conducting structure according to claim 3, wherein the support frame is provided with a plurality of through holes, the through holes are arranged in a mutually separated manner, and one through hole corresponds to an explosion-proof valve of one battery.

5. A thermally conductive structure as claimed in claim 3 wherein said support frame further comprises a glue containing plate in each of said glue filling holes, said Cheng Jiaoban extending into said glue filling holes for supporting said thermally conductive structural glue.

6. The heat conducting structure according to claim 5, wherein the glue containing plate is provided with a first wire passing notch, and the first wire passing notch is used for passing through a transmission wire.

7. The heat conducting structure according to claim 6, wherein a limiting frame is arranged on one side of the supporting frame, facing the liquid cooling plate, and the limiting frame surrounds the outer side of the through hole and is used for limiting the trend of the aluminum bar transmission line.

8. The heat conducting structure according to claim 7, wherein the limiting frame comprises an inner layer frame located on the inner side and an outer layer frame surrounding the inner layer frame, and a wiring space of the transmission line is arranged between the outer layer frame and the inner layer frame.

9. The heat conducting structure according to claim 8, wherein the outer layer is provided with a plurality of second wire passing notches, and one second wire passing notch is arranged corresponding to one glue filling hole.

10. The heat conducting structure according to claim 9, wherein the outer frame comprises a plurality of wire pressing frames, the wire pressing frames comprise two rows arranged oppositely, the wire pressing frames in two rows are arranged on two opposite sides of the through hole along the width direction of the battery module, and one second wire passing notch is formed between every two wire pressing frames.

11. The heat conducting structure according to claim 10, wherein the wire pressing frame comprises a vertical plate and a horizontal plate, the vertical plate extends towards the direction of the liquid cooling plate, and the horizontal plate is arranged at one end of the vertical plate, which is close to the liquid cooling plate, and extends into the wire running space.

12. The heat conducting structure according to any one of claims 9 to 11, wherein a wire clamping structure is disposed on a side of the support frame facing the liquid cooling plate, and the wire clamping structure is disposed corresponding to the second wire passing notch and is used for clamping the transmission wire, so that the transmission wire can extend into the second wire passing notch.

13. The battery module, its characterized in that includes:

a case;

the battery pack is arranged in the box body;

the aluminum bar is arranged in the box body and connected with the pole of the battery pack;

the liquid cooling plate is covered on the box body;

the heat conducting structure according to any one of claims 3 to 12, which is provided in the tank and is connected between the aluminum bar and the liquid cooling plate.

14. The battery module of claim 13, further comprising a thermally conductive silicone pad disposed between the thermally conductive structure and the liquid cooling plate.

15. The battery module of claim 13, wherein the liquid cooling plate is provided with a plurality of liquid receiving tanks in a direction toward the battery pack.

16. The battery module according to any one of claims 13 to 15, wherein the liquid cooling plate is provided with a relief groove corresponding to the through hole, the relief groove protruding in a direction away from the battery pack.