CN218005035U

CN218005035U - From battery module of taking heating

Info

Publication number: CN218005035U
Application number: CN202221794098.9U
Authority: CN
Inventors: 叶飞
Original assignee: Hefei Guoxuan High Tech Power Energy Co Ltd
Current assignee: Hefei Gotion High Tech Power Energy Co Ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-12-09
Anticipated expiration: 2032-07-11

Abstract

The utility model provides a battery module with heating function, which comprises a module matrix, a heat-conducting adhesive layer and a heating cover plate; the module matrix comprises at least one battery cell and a pole piece, wherein the battery cell is provided with a pole post, and the pole post is provided with the pole piece; the pole piece is provided with a heat-conducting adhesive layer, and the heat-conducting adhesive layer is provided with a heating cover plate. The utility model discloses a setting of electricity core, utmost point post, pole piece, heat-conducting glue layer, heating apron position can be through heat-conducting glue layer, pole piece, utmost point post heat the heat that the apron produced directly transmit to electric core in, effectively improved the heating efficiency of battery module.

Description

From battery module of taking heating

Technical Field

The utility model relates to a lithium cell technical field specifically is a from battery module of taking heating.

Background

At present, the group heating modes of the square battery cell mainly focus on two heating modes of liquid cooling and heating film; the liquid cooling mainly comprises the steps of heating the cooling liquid, then flowing into a liquid cooling pipe which is pre-installed, and transmitting heat into the bottom of the module by the liquid cooling pipe to realize the heating of the module; the cost is high, and the lithium battery is generally used on high-end vehicle types or ternary lithium batteries; the heating film mode is mainly characterized in that the heating film is laid on the bottom or the side of a grouped module, the module is heated by heating the heating film on the bottom or the side of the module, the heating mode is simple in method and low in cost, the selection of a low-end vehicle model is always realized, but the heating efficiency is low, the root cause of the heating mode is two points, and the first point is that: poor contact between the heating film and the battery cell leads to low efficiency, and because the size of each battery cell has deviation, the flatness of the module during stacking is poor, so that the heating film cannot be well contacted with the battery cell, and the heat conduction efficiency is low; the second point is that: because the surface of the battery cell is wrapped by a layer of PET blue film, the heat transfer is also reduced indirectly.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a battery module from area heating is provided, solve among the prior art lower, the higher problem of heating cost of battery module heating efficiency.

The utility model discloses a following technical means realizes solving above-mentioned technical problem:

a battery module with heating function comprises a module base body (1), a heat-conducting adhesive layer (2) and a heating cover plate (3); the module base body (1) comprises at least one battery cell (12) and a pole piece (13), wherein a pole column (121) is arranged on the battery cell (12), and the pole piece (13) is arranged on the pole column (121); be provided with heat-conducting adhesive layer (2) on pole piece (13), be provided with heating apron (3) on heat-conducting adhesive layer (2).

Has the advantages that: through the setting of electric core, utmost point post, pole piece, heat-conducting glue layer, heating cover plate position, can be through heat-conducting glue layer, pole piece, utmost point post with the heat direct transfer to electric core that the heating cover plate produced, effectively improved the heating efficiency of battery module.

Further, the heating cover plate (3) comprises an electric conduction mechanism (33) and a heating film (34), wherein the electric conduction mechanism (33) can communicate an external power supply with the heating film (34), and the heating film (34) is in direct contact with the heat-conducting glue layer (2).

Further, heating apron (3) still include plate body (31), joint (32), be fixed with joint (32) on plate body (31), the input and the external power source intercommunication that connect (32), the output and the electric conduction mechanism (33) intercommunication that connect (32), electric conduction mechanism (33), heating film (34) all are fixed in on plate body (31).

Further, the electric conduction mechanism (33) is a resistance wire arranged in a fence shape.

Furthermore, the electric conduction mechanism (33) is composed of a transverse resistance wire (331) and a plurality of vertical resistance wires (332) which are perpendicular to the transverse resistance wire (331), the transverse resistance wire (331) is communicated with the output end of the connector (32), and heating films (34) are fixed at the free ends of the vertical resistance wires (332).

Furthermore, the plate body (31) is rectangular, and a joint (32) is fixed on the short side of one side of the plate body (31).

Further, the module base body (1) further comprises a shell (11), the battery cells (12) are arranged in a plurality, the battery cells (12) are sequentially arranged along the inner wall of the shell (11), the top ends of the battery cells (12) are all fixed with a pole column (121), and the top ends of the pole columns (121) are all fixed with pole pieces (13); the battery is characterized in that a heat-conducting adhesive layer (2) is fixed on the top wall of the pole piece (13), and a heating cover plate (3) is fixed at the top end of the shell (11) to seal the battery core (12), the pole piece (13) and the heat-conducting adhesive layer (2) in the shell (11).

Further, the housing (11) is provided in a cubic shape.

The utility model has the advantages that:

the utility model discloses be provided with heat-conducting adhesive layer, heating cover plate in the battery module, through the setting of electric core, utmost point post, pole piece, heat-conducting adhesive layer, heating cover plate position, can directly transmit electric core through heat-conducting adhesive layer, pole piece, utmost point post with the heat that heating cover plate produced, effectively improved the heating efficiency of battery module.

Drawings

Fig. 1 is a front cross-sectional view of a battery module with heating according to an embodiment of the present invention;

fig. 2 is a left side view of a self-heating battery module according to an embodiment of the present invention;

fig. 3 is a top view of a bottom plate of a battery module with heating according to an embodiment of the present invention.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are 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.

Example one

As shown in fig. 1 and fig. 2, the present embodiment provides a self-heating battery module, which includes a module substrate 1, a thermal conductive adhesive layer 2, and a heating cover plate 3.

As shown in fig. 1 and 2, the module base 1 includes a housing 11, a plurality of battery cells 12, and a pole piece 13; the casing 11 is arranged in a cubic shape, a plurality of battery cells 12 arranged along the casing 11 are fixed inside the casing 11, the top ends of the battery cells 12 are all fixed with a pole column 121, and the top end of the pole column 121 is fixed with a pole piece 13; a heat-conducting adhesive layer 2 is fixed on the top wall of the pole piece 13; the top end of the shell 11 is fixed with a heating cover plate 3 to seal the battery cell 12, the pole piece 13 and the heat conducting adhesive layer 2 in the shell 11.

As shown in fig. 2 and 3, the heating cover plate 3 includes a plate body 31, a tab 32, an electric conduction mechanism 33, and a heating film 34; the plate body 31 is rectangular; a connector 32 is fixed on one short side of the plate body 31, the input end of the connector 32 is communicated with an external power supply, the output end of the connector 32 is communicated with an electric conduction mechanism 33, and the electric conduction mechanism 33 can communicate the external power supply with the heating film 34; the electric conduction mechanism 33 is a resistance wire arranged in a fence shape, in the embodiment, the electric conduction mechanism 33 is composed of a transverse resistance wire 331 and a plurality of vertical resistance wires 332 arranged perpendicularly to the transverse resistance wire 331, the transverse resistance wire 331 is communicated with the output end of the connector 32, the free ends of the plurality of vertical resistance wires 332 are all fixed with heating films 34, and the electric conduction mechanism 33 and the heating films 34 are all fixed on the plate body 31; the heating film 34 is in direct contact with the thermal conductive adhesive layer 2, and can transfer heat to the pole piece 13 through the thermal conductive adhesive layer 2.

During the use, external power source passes through joint 32 with the circular telegram horizontal resistance wire 331, then horizontal resistance wire 331 with the circular telegram a plurality of vertical resistance wires 332 of circular telegram, then each vertical resistance wire 332 lets in the heating film 34 of being connected with it with the electricity, makes a plurality of heating films 34 produce the heat simultaneously, then the heat passes through heat-conducting glue layer 2 and transmits for pole piece 13, and pole piece 13 passes through utmost point post 121 with the heat and transmits each electricity core 12 and heat.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A battery module with heating function is characterized by comprising a module base body (1), a heat-conducting adhesive layer (2) and a heating cover plate (3);

the module base body (1) comprises at least one battery cell (12) and a pole piece (13), a pole column (121) is arranged on the battery cell (12), and the pole piece (13) is arranged on the pole column (121); be provided with heat-conducting adhesive layer (2) on pole piece (13), be provided with heating apron (3) on heat-conducting adhesive layer (2).

2. The self-heating battery module according to claim 1, wherein: the heating cover plate (3) comprises an electric conduction mechanism (33) and a heating film (34), wherein the electric conduction mechanism (33) can communicate an external power supply with the heating film (34), and the heating film (34) is in direct contact with the heat-conducting glue layer (2).

3. The self-heating battery module according to claim 2, wherein: heating apron (3) still include plate body (31), joint (32), be fixed with joint (32) on plate body (31), the input and the external power source intercommunication that connect (32), the output and the electric conduction mechanism (33) intercommunication that connect (32), electric conduction mechanism (33), heating film (34) all are fixed in on plate body (31).

4. The self-heating battery module according to claim 3, wherein: the electric conduction mechanism (33) is a resistance wire arranged in a fence shape.

5. The self-heating battery module as claimed in claim 4, wherein: the electric conduction mechanism (33) is composed of a transverse resistance wire (331) and a plurality of vertical resistance wires (332) which are perpendicular to the transverse resistance wire (331), the transverse resistance wire (331) is communicated with the output end of the connector (32), and the free ends of the vertical resistance wires (332) are fixed with heating films (34).

6. The self-heating battery module according to claim 3, wherein: the plate body (31) is arranged in a rectangular shape, and a joint (32) is fixed on the short side of one side of the plate body (31).

7. The self-heating battery module according to claim 1, wherein: the module base body (1) further comprises a shell (11), a plurality of battery cells (12) are arranged, the battery cells (12) are sequentially arranged along the inner wall of the shell (11), the top ends of the battery cells (12) are all fixed with a pole column (121), and the top ends of the pole columns (121) are all fixed with pole pieces (13); the battery is characterized in that a heat-conducting adhesive layer (2) is fixed on the top wall of the pole piece (13), and a heating cover plate (3) is fixed at the top end of the shell (11) to seal the battery core (12), the pole piece (13) and the heat-conducting adhesive layer (2) in the shell (11).

8. The self-heating battery module according to claim 7, wherein: the housing (11) is provided in a cubic shape.