CN218039455U

CN218039455U - Automobile power battery structure

Info

Publication number: CN218039455U
Application number: CN202221975604.4U
Authority: CN
Inventors: 林赞锐; 仲亮; 刘源; 马汝甲
Original assignee: Guangzhou Xiaopeng Motors Technology Co Ltd
Current assignee: Guangzhou Xiaopeng Motors Technology Co Ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-12-13
Anticipated expiration: 2032-07-28

Abstract

The utility model discloses an automobile power battery structure comprises a fixed frame and a plurality of electric cores, wherein a plurality of mounting holes are formed on the surface of the fixed frame, a plurality of the mounting holes are arranged at intervals, a liquid cooling runner is formed inside the fixed frame, the liquid cooling runner is annularly arranged in each mounting hole, the fixed frame is also provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are respectively communicated with the liquid cooling runner; and the battery cell is arranged in the mounting hole. The utility model discloses technical scheme aims at promoting the radiating efficiency of automobile power battery structure.

Description

Automobile power battery structure

Technical Field

The utility model relates to a new energy automobile battery technical field, in particular to automobile power battery structure.

Background

The power battery is a core component of the new energy automobile. Current automobile power battery adopts to form electric core module with a plurality of electric core combinations usually, and a plurality of electric core modules pass through the box fixed and combination formation battery package to set up the liquid cooling system at the internal face of box or between electric core module and realize dispelling the heat to electric core module, but this kind of radiating mode can only dispel the heat to electric core module marginal portion's electric core, can't realize dispelling the heat to the inside electric core of electric core module, lead to the holistic radiating efficiency of power battery not high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automobile power battery structure aims at promoting the radiating efficiency of automobile power battery structure.

In order to achieve the above object, the utility model provides an automobile power battery structure, include:

the fixing frame is provided with a plurality of mounting holes formed in the surface, the mounting holes are arranged at intervals, a liquid cooling runner is formed inside the fixing frame and is annularly arranged in each mounting hole, the fixing frame is also provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are respectively communicated with the liquid cooling runner; and

the battery cell is arranged in the mounting hole.

In an embodiment of the present invention, the fixing frame includes:

the liquid inlet and the liquid outlet are arranged on the frame main body and communicated with the runner groove;

and the bottom plate is connected with the frame main body and seals the opening of the runner groove to form the liquid cooling runner.

The utility model discloses an in the embodiment, each the both ends of electricity core all are equipped with the electrode slice, the electrode slice with the both ends electricity of electricity core is connected, the electrode slice with fixed frame welded connection.

The utility model discloses an in the embodiment, the lateral wall face of electricity core with be equipped with heat conduction silica gel between the pore wall of mounting hole.

In an embodiment of the present invention, the fixing frame has a length direction, a width direction and a thickness direction, and each of the mounting holes is disposed along the thickness direction of the fixing frame.

In an embodiment of the present invention, the mounting hole is a through hole; or the mounting hole is a blind hole.

The utility model discloses an in one embodiment, the inlet with the liquid outlet is located respectively fixed frame length direction's both ends face.

In an embodiment of the present invention, the liquid inlet and the liquid outlet are located at two ends of the fixed frame in the width direction.

In an embodiment of the present invention, the mounting holes are arranged in an array on an end surface of the fixing frame in the thickness direction;

or the mounting holes form a plurality of rows on the end surface of the fixing frame in the thickness direction, and the mounting holes in two adjacent rows are arranged in a staggered manner.

In an embodiment of the present invention, the fixing frame is made of metal.

The utility model discloses technical scheme's automobile power battery structure includes fixed frame and a plurality of electric core, wherein, the surface of fixed frame is formed with the mounting hole that a plurality of intervals set up, an electric core of mounting hole mountable is fixed, fixed frame is inside to be formed with the liquid cooling runner and to encircle at each mounting hole, thus, the coolant liquid flows into in the liquid cooling runner from the inlet, and flow via the liquid outlet, the coolant liquid that flows in the liquid cooling runner can take away the heat that each electric core produced, realize dispelling the heat for each electric core, the radiating efficiency of automobile power battery structure has been promoted effectively.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the structure of the automotive power battery of the present invention;

fig. 2 is a schematic structural view of the fixing frame in fig. 1.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides an automobile power battery structure 100.

Referring to fig. 1 and 2, the utility model provides an automobile power battery structure 100 includes fixed frame 10 and a plurality of electric cores 20, a plurality of mounting holes 111 are formed on the surface of fixed frame 10, a plurality of mounting holes 111 set up at intervals, a liquid cooling runner (not shown) is formed inside fixed frame 10, the liquid cooling runner encircles each mounting hole 111, fixed frame 10 is still equipped with inlet 113 and outlet 115, inlet 113 and outlet 115 communicate with the liquid cooling runner respectively; the battery cell 20 is disposed in the mounting hole 111.

The fixing frame 10 provides a carrier for fixing and mounting each battery cell 20, the shape of the fixing frame 10 may be a square structure, a cylindrical structure, or the like, and the fixing frame 10 may be appropriately adjusted according to the components for fixing the automotive power battery structure 100. Generally, the fixing frame 10 is directly fixed to the chassis of the vehicle, and thus, the whole power battery structure 100 of the vehicle is fixed to the chassis of the vehicle. The material of the fixing frame 10 may be a metal material, and the material of the fixing frame 10 may be a stainless material, a copper alloy material, or the like, so as to improve the strength of the fixing frame 10 and prolong the service life of the fixing frame 10. Moreover, the metal material also has good heat conductivity, so as to further improve the heat conductivity of the fixing frame 10. Of course, the material of the fixing frame 10 is not limited to a metal material, and other materials may be used. The battery core 20 is a cylindrical battery core 20, and the size of the shape of the mounting hole 111 is matched with that of the battery core 20. The battery core 20 may be a winding core portion including a battery, and the winding core of the battery is directly abutted to the hole wall of the mounting hole 111, so that the volume utilization rate of the automotive power battery structure 100 can be further improved; in another embodiment, the battery cell 20 may also include a winding core portion of the battery and a casing wrapped outside the winding core of the battery, in which case the casing directly abuts against the hole wall of the mounting hole 111.

The cooling liquid can be cooling water, cooling oil or other flowable cooling media.

The utility model discloses technical scheme's automobile power battery structure 100 includes fixed frame 10 and a plurality of electric core 20, wherein, the surface of fixed frame 10 is formed with the mounting hole 111 that a plurality of intervals set up, an electric core 20 is fixed to the 111 mountable of mounting hole, fixed frame 10 is inside to be formed with the liquid cooling runner and to encircle at each mounting hole 111, so, the coolant liquid flows into in the liquid cooling runner from inlet 113, and flow out via liquid outlet 115, the coolant liquid that flows in the liquid cooling runner can take away the heat that each electric core 20 produced, realize dispelling the heat for each electric core 20, automobile power battery structure 100's radiating efficiency has been promoted effectively.

And, the utility model discloses among the technical scheme, through directly fixed with fixed frame 10 with each electric core 20, need not to constitute an electric core 20 module with a plurality of electric cores 20, can save the structure of fixed module for can fix more electric cores 20 at the fixed frame 10 of the same volume size, promote automobile power battery structure 100's volume utilization ratio.

Referring to fig. 2, in an embodiment of the present invention, the fixing frame 10 includes: the liquid container comprises a frame main body 11 and a bottom plate 13, wherein the frame main body 11 is provided with mounting holes 111, the frame main body 11 is also provided with the mounting holes 111, the frame main body 11 is also provided with a runner groove which is annularly arranged on the mounting holes 111, and a liquid inlet 113 and a liquid outlet 115 are both arranged on the frame main body 11 and communicated with the runner groove (not shown); the base plate 13 is connected to the frame body 11 and seals the opening of the passage groove to form the liquid cooling passage.

The utility model discloses an among the technical scheme of an embodiment, fixed frame 10 includes frame main part 11 and bottom plate 13, and frame main part 11 forms the runner groove, and bottom plate 13 and the opening in sealed runner groove are in order to form the liquid cooling runner to simplify the processing of liquid cooling runner. The bottom plate 13 and the frame main body 11 are made of metal, and the bottom plate 13 and the frame main body 11 can be connected by welding to improve the sealing performance between the frame main body 11 and the bottom plate 13. It is to be understood that the bottom plate 13 may also seal one end of the mounting hole 111 such that the mounting hole 111 is formed as a blind hole. The bottom plate 13 may also be formed with a hollowed structure so that the mounting hole 111 is formed with a through hole structure. It is understood that portions of the base plate 13 may be formed with the electrode tabs 30 when the base plate 13 seals one end of the mounting hole 111, or the electrode tabs 30 may be welded to the surface of the base plate 13. When the bottom plate 13 is a hollow structure, the edge of the electrode plate is welded to the edge of the hollow structure. The electrode tab 30 located at the end away from the bottom plate 13 is welded to the edge of the mounting hole 111. By arranging the electrode plate 30, the electrical contact of the battery cell 20 is good, and the situation of poor contact is avoided.

Further, referring to fig. 1, in an embodiment of the present invention, a heat conductive silica gel is disposed between the side wall surface of the electrical core 20 and the hole wall of the mounting hole 111. By arranging the heat-conducting silica gel between the side wall surface of the battery cell 20 and the hole wall of the mounting hole 111, on one hand, heat generated by the battery cell 20 can be better transferred to the fixing frame 10 through the heat-conducting silica gel, and the heat-conducting efficiency is improved; on the other hand, the heat-conducting silica gel can also fill the assembly gap between the battery cell 20 and the mounting hole 111, so that the reliability of fixing the battery cell 20 between the mounting holes 111 is improved.

Further, referring to fig. 1 and 2, in an embodiment of the present invention, the fixing frame 10 has a length direction, a width direction and a thickness direction, and each of the mounting holes 111 extends along the thickness direction of the fixing frame 10. The technical scheme of the utility model in, fixed frame 10 roughly is the square body structure to it is fixed with vehicle chassis to fix fixed frame 10, simultaneously, and the installation of the electric core 20 of also being convenient for is fixed. The battery cells 20 are arranged in an array on the surface of the fixing frame 10 in the thickness direction, so that the battery cells 20 can be conveniently assembled into the mounting holes 111 by using an automatic device, and the mounting efficiency is further improved. Further, in another embodiment, the mounting holes 111 are formed in a plurality of rows on the end surface of the fixing frame 10 in the thickness direction, and the mounting holes 111 in two adjacent rows are arranged in a staggered manner. Thus, the gaps between the mounting holes 111 can be smaller, a larger number of battery cells 20 can be accommodated in the limited volume of the fixing frame 10, and the volume utilization rate of the automotive power battery structure 100 is further improved.

Referring to fig. 1 and 2, in an embodiment of the present invention, the liquid inlet 113 and the liquid outlet 115 are respectively disposed on two end surfaces of the fixing frame 10 in the length direction. The liquid inlet 113 and the liquid outlet 115 are respectively connected with an external liquid supply pipeline system through quick connectors, and the liquid inlet 113 and the liquid outlet 115 are respectively arranged on two end faces of the fixed frame 10 in the length direction, so that the coolant liquid flows into the liquid cold runner from the liquid inlet 113 and flows out through the liquid outlet by the length of the whole fixed frame 10, the flowing distance of the coolant liquid in the liquid cold runner is long, the coolant liquid can be in contact with the hole walls of more mounting holes 111, and the heat dissipation efficiency is improved. In another embodiment, the liquid inlet 113 and the liquid outlet 115 are located at both ends of the fixing frame 10 in the width direction. By providing the liquid inlet and the liquid outlet 115 at both ends of the fixed frame 10 in the width direction, the purpose is to increase the position of the cooling liquid flowing through the liquid cooling flow channel, to prolong the contact time of the cooling liquid with the mounting hole 111, and to further increase the heat dissipation efficiency.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the inventive concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. An automotive power battery structure, characterized by comprising:

the liquid cooling device comprises a fixed frame (10), wherein a plurality of mounting holes (111) are formed in the surface of the fixed frame (10), the mounting holes (111) are arranged at intervals, a liquid cooling runner is formed in the fixed frame (10), the liquid cooling runner is annularly arranged in each mounting hole (111), the fixed frame (10) is further provided with a liquid inlet (113) and a liquid outlet (115), and the liquid inlet (113) and the liquid outlet (115) are respectively communicated with the liquid cooling runner; and

a plurality of battery cores (20), one battery core (20) is arranged in one mounting hole (111).

2. The automotive power battery structure according to claim 1, characterized in that the fixing frame (10) comprises:

the frame body (11), the frame body (11) is provided with mounting holes (111), the mounting holes (111) are formed in the frame body (11), the frame body (11) is further provided with runner grooves which are annularly arranged in the mounting holes (111), and the liquid inlet (113) and the liquid outlet (115) are both arranged on the frame body (11) and communicated with the runner grooves;

a bottom plate (13), the bottom plate (13) with frame main part (11) are connected, and seal the opening of runner groove, in order to form the liquid cooling runner.

3. The automotive power battery structure according to claim 1, characterized in that both ends of each battery cell (20) are provided with electrode plates (30), the electrode plates (30) are electrically connected with both ends of the battery cell (20), and the electrode plates (30) are welded with the fixing frame (10).

4. The automotive power battery structure of claim 1, characterized in that a heat-conducting silica gel is arranged between the side wall surface of the battery cell (20) and the wall of the mounting hole (111).

5. The automotive power cell structure according to any one of claims 1 to 4, characterized in that the fixing frame (10) has a longitudinal direction, a width direction, and a thickness direction, and the mounting holes (111) are provided extending in the thickness direction of the fixing frame (10).

6. The automotive power battery structure of claim 5, characterized in that the mounting hole (111) is a through hole; or the mounting hole (111) is a blind hole.

7. The automotive power battery structure according to claim 5, characterized in that the liquid inlet (113) and the liquid outlet (115) are respectively disposed on two end faces of the fixing frame (10) in the length direction.

8. The automotive power battery structure as claimed in claim 7, characterized in that the liquid inlet (113) and the liquid outlet (115) are located at both ends of the fixed frame (10) in the width direction.

9. The automotive power battery structure according to claim 5, characterized in that the mounting holes (111) are arranged in an array at the end face in the thickness direction of the fixed frame (10);

or the mounting holes (111) form a plurality of rows on the end face of the fixed frame (10) in the thickness direction, and the mounting holes (111) in two adjacent rows are arranged in a staggered manner.

10. The automotive power battery structure according to claim 5, characterized in that the fixing frame (10) is made of metal.