CN213124652U

CN213124652U - Battery module heat management structure

Info

Publication number: CN213124652U
Application number: CN202022339958.7U
Authority: CN
Inventors: 张志奇; 陈保国
Original assignee: Tianjin EV Energies Co Ltd
Current assignee: Tianjin EV Energies Co Ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-05-04
Anticipated expiration: 2030-10-20

Abstract

The utility model provides a battery module heat management structure belongs to power battery heat management technical field, including cooling panel assembly, the cooling panel assembly includes liquid cooling passageway, pressure manifold and heat conduction support piece, liquid cooling passageway and pressure manifold are hollow structure, and 2 pressure manifold parallel arrangement are perpendicular at the both ends of liquid cooling passageway and with the liquid cooling passageway, and the inside of liquid cooling passageway and pressure manifold link up, heat conduction support piece installs the surface at the liquid cooling passageway, and the upper end and the lower extreme at heat conduction support piece are fixed to electric core. The utility model discloses simple structure, design benefit, weight is lighter, installation easy maintenance, and the heat management is effectual.

Description

Battery module heat management structure

Technical Field

The utility model belongs to the technical field of power battery heat management, a battery module heat management structure is related to.

Background

In the power battery manufacturing process, need put into the module casing with electric core, the module casing supports the power battery module as power battery's carrier, and it is stable to support the power battery module, makes the holistic structural strength of module and each operating mode that rigidity adaptation car went, and the through-hole that corresponds every electric core position of processing in advance on the module casing can in time derive the module outside with the heat when making electric core thermal runaway, avoids more electric cores out of control to lead to whole package out of control. The battery module adopts the injecting glue form to make electric core pile up the back and link into a whole and be connected with the module casing, and the pencil is used for gathering module voltage and temperature signal, feeds back module information to the system, and the pencil design adopts FPC integrated mode, lightweight design.

The inside thermal management of module casing is very important, prior art scheme generally is for arranging snakelike liquid cooling pipeline at cylinder electricity core periphery, the cooperation heat-conducting glue carries out the heat pipe reason to electric core, this kind of structure generally is applicable to 18650 class of less electric cores of equidimension, this kind of liquid cooling pipe processing technology is complicated, the uniformity requires highly leading to the processing degree of difficulty big, the installation of heat management system is complicated, the liquid cooling connects many, the weeping fault point is many, and be subject to section bar shaping width and thickness restriction, can't satisfy the attached demand of big cylinder electricity core, this just needs a novel battery module heat management structure to solve this problem.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is battery module heat management structure belongs to power battery heat management technical field, simple structure, design benefit, and weight is lighter, installation easy maintenance, and the heat management is effectual.

In order to solve the technical problem, the utility model discloses a technical scheme is: battery module heat management structure belongs to power battery heat management technical field, including radiator plate subassembly, and the radiator plate subassembly includes liquid cooling passageway, pressure manifold and heat conduction support piece, liquid cooling passageway and pressure manifold are hollow structure, and 2 pressure manifold parallel arrangement are at the both ends of liquid cooling passageway and perpendicular with the liquid cooling passageway, and the inside of liquid cooling passageway and pressure manifold link up, heat conduction support piece installs the surface at the liquid cooling passageway, and upper end and the lower extreme at heat conduction support piece are fixed to electric core.

Furthermore, the heat dissipation plate assemblies are multiple, the heat dissipation plate assemblies and the battery cell are sequentially stacked in the vertical direction, and the adjacent heat dissipation plate assemblies are parallel to each other and opposite in direction.

Furthermore, the heat conduction supporting pieces are arranged in parallel, and the distance between every two adjacent heat conduction supporting pieces is equal.

Furthermore, the side of the heat conduction support element is provided with 3 unconnected arc surfaces, the battery core is fixed on the surface of the arc surfaces, and a connecting surface is arranged between the arc surfaces.

Furthermore, heat-conducting glue is arranged between the electric cores and the heat-conducting support piece, and heat-conducting glue is arranged between the adjacent electric cores.

Furthermore, the shape of the battery cell is a cylinder, the diameter of the battery cell is not less than 30mm, and the length of the battery cell is not less than 200 mm.

Compared with the prior art, the utility model has the advantages and positive effect as follows:

1. the utility model discloses simple structure, design benefit, weight is lighter, installation easy maintenance, and the heat management is effectual.

2. The utility model discloses a liquid cooling passageway and collector tube's inside link up, and the liquid cooling connects fewly, and the weeping inefficacy point is few.

3. The utility model discloses a heating panel subassembly has a plurality ofly, and heating panel subassembly and electric core pile up in proper order in vertical direction, and adjacent heating panel subassembly is parallel and opposite direction mutually, and the electric core on different layers is staggered and is placed, and it is more even to dispel the heat, and the radiating effect is better, and the mode of piling up is simple, can make full use of battery system's direction of height space, promotes whole battery package space utilization, improves battery system's volume energy density and quality energy density.

4. The utility model discloses a heat conduction support piece's side has 3 disconnected arc surfaces, and electric core is fixed on the arc surface, has the connection face between the arc surface, has increased electric core and cooling system's area of contact, has improved thermal management efficiency.

5. The utility model discloses a have between electric core and the heat conduction support piece and lead heat glue, have between the adjacent electric core and lead heat glue, play the structural connection effect promptly, play the heat conduction again.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is an overall schematic view of the battery module heat management structure of the present invention;

fig. 2 is a schematic view of a heat dissipation plate assembly of the battery module heat management structure of the present invention;

fig. 3 is a side sectional view of the battery module heat management structure of the present invention.

Reference numerals:

1. a heat sink plate assembly; 2. an electric core; 3. heat conducting glue; 11. a liquid cooling channel; 12. a header pipe; 13. a thermally conductive support; 131. a circular arc surface; 132. and (5) connecting the surface.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "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, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1-3, the utility model discloses a battery module heat management structure belongs to power battery heat management technical field, including cooling panel subassembly 1, cooling panel subassembly 1 includes liquid cooling passageway 11, pressure manifold 12 and heat conduction support piece 13, liquid cooling passageway 11 and pressure manifold 12 are hollow structure, 2 pressure manifold 12 parallel arrangement are just perpendicular with liquid cooling passageway 11 at the both ends of liquid cooling passageway 11, liquid cooling passageway 11 and pressure manifold 12's inside link up, the liquid cooling connects fewly, the weeping inefficacy is few, heat conduction support piece 13 is installed at the surface of liquid cooling passageway 11, upper end and the lower extreme at heat conduction support piece 13 are fixed to electric core 2.

Preferably, heating panel subassembly 1 has a plurality ofly, and cooling panel subassembly 1 and electric core 2 pile up in proper order in vertical direction, and adjacent cooling panel subassembly 1 is parallel to each other and opposite direction, and the electric core 2 of different layers staggers and places, and the heat dissipation is more even, and the radiating effect is better, and the stacking mode is simple, can make full use of battery system's direction of height space, promotes whole battery package space utilization, improves battery system's volume energy density and quality energy density.

Preferably, the heat-conducting supporting members 13 are arranged in parallel, the distance between adjacent heat-conducting supporting members 13 is equal, the distance between adjacent electric cores 2 is the same, and the heat conduction is more uniform.

Preferably, the side surface of the heat conducting support 13 has 3 unconnected arc surfaces 131, the battery cell 2 is fixed on the surface of the arc surfaces 131, and the connection surface 132 is arranged between the arc surfaces 131, so that the contact area between the battery cell 2 and the cooling system is increased, and the heat management efficiency is improved.

Preferably, there is heat-conducting glue 3 between electric core 2 and heat conduction support piece 13, has heat-conducting glue 3 between adjacent electric core 2, plays the effect of structural connection promptly, plays the heat conduction effect again.

Preferably, the shape of the battery cell 2 is a cylinder, the diameter of the battery cell 2 is not less than 30mm, the length of the battery cell 2 is not less than 200mm, and when the length of the battery cell 2 changes, the lengths of the liquid cooling channel 11 and the heat conducting support member 13 can be adjusted to adapt to each other, so that the heat conducting support requirements of the battery cells 2 with various specifications are met.

In the actual work process, it is neat to pile up first layer electricity core 2 through the frock, first layer electricity core 2 upper end installation first layer heating panel subassembly 1, install second layer electricity core 2 in the upper end of first layer heating panel subassembly 1, install second layer heating panel subassembly 1 in the upper end of second layer electricity core 2, analogize with this, need pile up electric core 2 and the heating panel subassembly 1 of different quantity according to the size and the energy density of module casing, the thermal management in-process, liquid is flowed in by the one end of pressure manifold 12, the other end flows out, carry out temperature control to electricity core 2.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. Battery module thermal management structure, its characterized in that: including radiator plate subassembly (1), radiator plate subassembly (1) includes liquid cooling passageway (11), pressure manifold (12) and heat conduction support piece (13), liquid cooling passageway (11) and pressure manifold (12) are hollow structure, and 2 pressure manifold (12) parallel arrangement are at the both ends of liquid cooling passageway (11) and perpendicular with liquid cooling passageway (11), and the inside of liquid cooling passageway (11) and pressure manifold (12) link up, the surface at liquid cooling passageway (11) is installed in heat conduction support piece (13), and upper end and the lower extreme at heat conduction support piece (13) are fixed in electric core (2).

2. The battery module thermal management structure of claim 1, wherein: the heat dissipation plate assemblies (1) are multiple, the heat dissipation plate assemblies (1) and the battery core (2) are sequentially stacked in the vertical direction, and the adjacent heat dissipation plate assemblies (1) are parallel to each other and opposite in direction.

3. The battery module thermal management structure of claim 1, wherein: the heat conduction supporting pieces (13) are arranged in parallel, and the distances between the adjacent heat conduction supporting pieces (13) are equal.

4. The battery module thermal management structure of claim 1, wherein: the side of heat conduction support piece (13) has 3 disconnected arc surface (131), and electric core (2) are fixed on arc surface (131) surface, have between arc surface (131) and connect face (132).

5. The battery module thermal management structure of claim 1, wherein: heat-conducting glue (3) is arranged between the electric cores (2) and the heat-conducting support pieces (13), and heat-conducting glue (3) is arranged between the adjacent electric cores (2).

6. The battery module thermal management structure of claim 1, wherein: the battery cell (2) is cylindrical, the diameter of the battery cell (2) is not less than 30mm, and the length of the battery cell (2) is not less than 200 mm.