CN219476816U

CN219476816U - Low-temperature heating assembly and battery with same

Info

Publication number: CN219476816U
Application number: CN202320381541.8U
Authority: CN
Inventors: 尤伟; 梁冲
Original assignee: Anhui Jihou Intelligent Technology Co ltd
Current assignee: Anhui Jihou Intelligent Technology Co ltd
Priority date: 2023-03-03
Filing date: 2023-03-03
Publication date: 2023-08-04
Anticipated expiration: 2033-03-03

Abstract

The utility model relates to the field of batteries, in particular to a low-temperature heating assembly and a battery with the same, wherein the low-temperature heating assembly comprises: the heating device comprises a plurality of film pieces and connecting wires, wherein the heating pieces are arranged in the film pieces, the connecting wires are electrically connected with the heating pieces, temperature control switches are packaged in the heating pieces, and the temperature control switches are electrically connected with a power module. According to the utility model, the arranged film sheet is coated on the outer side of the battery, the structure capable of heating the outer surface of the battery is formed by matching with the heating sheet in the film sheet, and then the temperature control switch is matched, so that the heating time of the heating sheet can be automatically controlled according to the ambient temperature around the battery, and the heat conduction efficiency is high, the heat utilization rate is higher, the heating efficiency is better, the weight is lower, and the normal use of the battery is not influenced due to the use of a direct contact heat transfer mode.

Description

Low-temperature heating assembly and battery with same

Technical Field

The utility model relates to the field of batteries, in particular to a low-temperature heating assembly and a battery with the same.

Background

Along with the development of new energy automobiles and energy storage technologies, the power battery technology is also continuously advancing. Power battery systems are also becoming increasingly popular in the automotive field. The lithium ion battery pack is formed by connecting a plurality of lithium ion battery cores together through a serial-parallel structure, and outputs the voltage, current and electric quantity required by a system. Lithium ion cells store or release electricity through chemical reactions, and the temperature has a significant effect on the chemical reactions, especially when the battery is in a low temperature environment below 0 ℃, the battery is not allowed to charge. In order to meet the requirement that batteries operate at low temperatures, a safe, reliable, efficient battery heating device is required.

The conventional battery heating device has the schemes of liquid heating, PTC plate heating and the like. The liquid heating needs to heat the liquid firstly, and the high-temperature liquid enters the battery cold plate to heat the battery, so that the scheme has more heat exchange times and low energy utilization rate, and the scheme also needs to be applied to the battery with the water cooling plate; the PTC board heater is direct with battery laminating, and the heat transfer that produces gives the battery after the circular telegram, and heating efficiency is higher, but PTC board itself needs certain thickness, and weight is also heavier.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a low-temperature heating component and a battery with the component, and the specific technical scheme is as follows:

a cryogenic heating assembly comprising: a plurality of film pieces and connecting wires.

Specifically, the inside of a plurality of the film piece all is provided with the heating plate, connecting wire electric connection a plurality of heating plate, the inside encapsulation of heating plate has temperature detect switch, temperature detect switch electric connection power module.

As the improvement of the technical scheme, the outer surface of the heating plate is coated with silica gel cloth, one side surface of the silica gel cloth is provided with double faced adhesive tape, and one end of the heating plate is connected with a wiring terminal.

As an improvement of the technical scheme, the connecting wire is an ultra-soft silica gel wire, and the heating plates are connected in series through the connecting wire.

The battery comprises a battery body, wherein the battery body is provided with the low-temperature heating assembly according to any one of the technical schemes, the low-temperature heating assembly is fixed on the surface of the battery body through glue, and the heating piece is attached to the surface of the battery body.

The utility model has the beneficial effects that:

this application is through the outside of the film piece cladding that sets up in the battery, the inside heating plate of film piece that the cooperation set up, form the structure that can heat at the battery surface, the temperature detect switch of cooperation setting again, like this can be according to the ambient temperature around the battery, automatically controlled heating time of heating plate, thereby can make the temperature around the battery remain in certain scope all the time, and then make the battery charge under arbitrary environment, and because the heat transfer mode of direct contact is used, heat conduction efficiency is high under this kind of circumstances, thermal utilization is higher, heating efficiency is better, and weight is lower moreover, do not influence the normal use of battery.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a functional block diagram of the present utility model.

Reference numerals: 10. a sheet of film; 11. a heating sheet; 12. a connection terminal; 13. a connecting wire; 14. a temperature control switch; 15. and a power supply module.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

In order to solve the above problems, referring to fig. 1-2, a low temperature heating assembly is provided, comprising: a plurality of film pieces 10 and connecting lines 13.

Specifically, the inside of a plurality of film pieces 10 all is provided with heating plate 11, and connecting wire 13 electric connection a plurality of heating plate 11, and the inside encapsulation of heating plate 11 has temperature detect switch 14, temperature detect switch 14 electric connection power module 15.

That is, the temperature control is performed through the temperature control switch 14, usually a preset temperature threshold value, when the temperature control switch 14 detects that the temperature near the battery is lower than the threshold value, the power module 15 supplies power to the heating plate 11, and the heating plate 11 generates heat after being electrified, so that the temperature of the outer side of the battery is ensured, and the battery can be charged in a low-temperature environment.

In one embodiment, the outer surface of the heating plate 11 is coated with a silicon rubber sheet, one side surface of the silicon rubber sheet is provided with a double faced adhesive tape, and one end of the heating plate 11 is connected with a wiring terminal 12.

The heating plate 11 is protected through the silicon adhesive tape, and meanwhile, double-sided adhesive tape is used for adhesion and fixation, so that the heating plate 11 is prevented from generating position deviation in the using process.

In one embodiment, the connecting wire 13 is an ultra-soft silica gel wire, and the plurality of heating plates 11 are connected in series through the connecting wire 13.

The series connection makes the control of the temperature control switch 14 on the heating plates 11 more convenient, and one switch can control all the heating plates 11 to work synchronously.

Example two

In order to cooperate with the technical scheme in the first embodiment, a battery is provided, including the battery body, the outside of battery body is fixed with the low temperature heating element in the first embodiment, and the low temperature heating element passes through glue to be fixed on the surface of battery body, and the surface of battery body is laminated to heating plate 11.

The temperature around the battery body is controlled through the low-temperature heating assembly, when the temperature of the surrounding environment is low, the battery body can be guaranteed to be always in the environment capable of being heated through the low-temperature heating assembly, in addition, the film sheet 10 is fixed on the outer surface of the battery in a glue bonding mode, and the fixing mode is simple, stable and efficient and cannot cause excessive influence in subsequent disassembly.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A cryogenic heating assembly, comprising:

the heating device comprises a plurality of thin films (10), wherein heating plates (11) are arranged inside the thin films (10);

the connecting wire (13), connecting wire (13) electric connection a plurality of heating piece (11), the inside encapsulation of heating piece (11) has temperature detect switch (14), temperature detect switch (14) electric connection power module (15).

2. The cryogenic heating assembly of claim 1, wherein: the outer surface cladding of heating plate (11) has silica gel cloth, one side surface of silica gel cloth is provided with the double faced adhesive tape, one end of heating plate (11) is connected with binding post (12).

3. The cryogenic heating assembly of claim 1, wherein: the connecting wires (13) are ultra-soft silica gel wires, and the heating plates (11) are connected in series through the connecting wires (13).

4. The utility model provides a battery, including the battery body, its characterized in that: a low-temperature heating assembly as claimed in any one of claims 1-3, wherein the low-temperature heating assembly is fixed on the surface of the battery body through glue, and the heating sheet (11) is attached to the surface of the battery body.