CN217770394U

CN217770394U - High heat conduction's battery heating plate

Info

Publication number: CN217770394U
Application number: CN202221547543.1U
Authority: CN
Inventors: 叶顺生
Original assignee: Zhejiang Yongle New Materials Co ltd
Current assignee: Zhejiang Yongle New Materials Co ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-11-08
Anticipated expiration: 2032-06-20

Abstract

The present application relates to the field of heating sheet technology, more specifically relates to a high thermal conductivity battery heating sheet, including: the battery heating plate is characterized by comprising an electric heating film element and a heat-conducting silica gel sheet, wherein the electric heating film element is attached to the heat-conducting silica gel sheet when the battery heating plate with high heat conduction is assembled, the heat-conducting silica gel sheet is provided with a plurality of through heat-conducting holes, and the heat-conducting holes are positioned in the area of the heat-conducting silica gel sheet which is not covered by the electric heating film element; and a heat preservation component and a heat-resisting film of elasticity, a plurality of recesses have on the heat preservation component, when assembling the battery heating plate of high fever conduction, the recess is just to the heat conduction hole, the two sides of electric heat film component laminate with heat-resisting film of elasticity and heat conduction silica gel piece respectively, the heat preservation component is located the one side that the heat-resisting film of elasticity deviates from the electric heat film component, and the heat preservation component has the laminating of notched one side and the heat-resisting film of elasticity, the utility model discloses can realize through the structural configuration of effectively utilizing its self that heat conduction efficiency is high, the heat energy loss is little, safe firm advantage.

Description

High heat conduction's battery heating plate

Technical Field

The application relates to the technical field of heating plates, in particular to a battery heating plate with high heat conduction.

Background

With the increasing maturity of new energy automobile technology and the cleverness and the high price of traditional energy, new energy automobile replaces traditional energy automobile to a certain extent and is embraced at the wholesale by the user, therefore new energy automobile market prospect is optimistic. The battery is used as a power element of a new energy automobile, the performance of the battery is attenuated under the influence of low temperature, and the battery heating plate is widely used for solving the influence of the low temperature on the battery. However, the conventional battery heating sheet only comprises a heating element and a silica gel sheet for conducting heat and sealing the heating element, so that the heat conduction efficiency is limited, and when one silica gel sheet abuts against the battery, the heat of one end of the heating element, which is far away from the battery, is lost by the outside and is not effectively utilized.

Therefore, a need exists for a battery heater chip with high heat conduction efficiency, low heat loss, and safety.

Disclosure of Invention

The main aim at of this application provides a battery heating piece of high fever conduction, wherein, battery heating piece of high fever conduction includes a heat conduction silica gel piece, an electric heat membrane element, a heat preservation component and an elasticity heat-resisting film, the louvre has on the heat conduction silica gel piece, the one side of heat preservation component has the recess, the recess is just right the louvre, the electric heat membrane has the heating end, the louvre is arranged one side of heating end, the heat preservation component has the one side of recess with the elasticity heat-resisting film supports and leans on, the another side of elasticity heat-resisting film with the electric heat membrane element supports and leans on, the heat conduction silica gel piece supports with the battery and leans on, the heat preservation component makes the heat that battery heating piece deviates from battery one end be difficult to outside transmission, but passes through the louvre transmits extremely the battery has improved heat conduction efficiency.

Another objective of the present application is to provide a high heat conduction battery heating sheet, wherein one side of the heat insulation element, which is far away from the electric heating film element, is provided with a clamping hole, the high heat conduction battery heating sheet is further provided with a pressing strip, the pressing strip is i-shaped, and the bending strength of the battery heating sheet is improved by the pressing strip; the layering has the joint arch, the joint arch with joint hole joint, still have the encapsulating through-hole on the joint arch, the processing personnel through pour glue to the injecting glue through-hole makes the layering with the heat preservation component is glued, makes the layering is further consolidated on the heat preservation component.

Another object of the present invention is to provide a high heat-conductive battery heating plate, wherein the high heat-conductive battery heating plate has a simple structure, is easy to operate, does not involve complicated manufacturing processes and expensive materials, has high economical efficiency, and is easy to popularize and use.

In order to achieve at least one of the above objects, the present application provides a high thermal conductive battery heating sheet, including:

the battery heating plate is characterized by comprising an electric heating film element and a heat-conducting silica gel sheet, wherein the electric heating film element is attached to the heat-conducting silica gel sheet when the battery heating plate with high heat conduction is assembled, the heat-conducting silica gel sheet is provided with a plurality of penetrating heat-conducting holes, and the heat-conducting holes are positioned in the area of the heat-conducting silica gel sheet, which is not covered by the electric heating film element; and

the battery heating piece is characterized by comprising a heat preservation element and an elastic heat-resistant film, wherein the heat preservation element is provided with a plurality of grooves, when the battery heating piece with high heat conduction is assembled, the grooves are right opposite to the heat conduction holes, two surfaces of the electric heating film element are respectively attached to the elastic heat-resistant film and the heat conduction silica gel sheet, the heat preservation element is positioned on one side of the elastic heat-resistant film, which is deviated from the electric heating film element, and the surface of the heat preservation element, which is provided with the grooves, is attached to the elastic heat-resistant film.

In one or more embodiments herein, the elastic heat-resistant film is a thermoplastic polyurethane elastomer rubber.

In one or more embodiments of this application, the electric heat membrane element has two wiring ends and a heating end, the heating end is located between two the wiring ends, the both ends of heating end respectively with two the wiring end intercommunication, two the wiring end with heating end integrated into one piece, two the wiring end sets up relatively, and two the wiring end is located the same end of heat conduction silica gel piece, the heating end extends to another from one of them heating end with zigzag mode of going forward.

In one or more embodiments of the present application, the thermal insulation element is pearl wool.

In one or more embodiments of the present application, each of the corners of the zigzag progression of the heat generating end is a right angle, and the heat conduction holes are rectangular holes.

In one or more embodiments of the present application, when the electrothermal film element is mounted on the heat conductive silicone sheet, a distance between an edge of the heat conductive hole and an adjacent heating end is 2 to 5 mm.

In one or more embodiments of this application, the heat preservation component deviates from one side of electric heat film element has a plurality of joint holes, the battery heating piece of high heat conduction still includes a layering, it is protruding that one side of layering has the joint of a plurality of intervals settings, the layering with the heat preservation component deviates from one side of electric heat film element supports and leans on, just the joint protruding with joint hole joint.

In one or more embodiments of the present application, the joint protrusion further has a glue injection through hole, and the glue injection through hole penetrates through the pressing strip.

In one or more embodiments of the present application, the bead is i-shaped.

In one or more embodiments of the present application, the material of the bead is plastic.

In the embodiment of the application, the heat conduction efficiency is improved through the heat dissipation holes, the heat loss is reduced through the heat preservation element, the problem of internal pressure increase of the heat dissipation holes caused by thermal expansion of air in the heat dissipation holes is prevented through the elastic heat-resistant film and the grooves corresponding to the heat dissipation holes, and the bending strength of the heating plate is improved through the pressing strips.

Drawings

These and/or other aspects and advantages of the present application will become more apparent and more readily appreciated from the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings of which:

fig. 1 illustrates a structural schematic of a high thermal conductive battery heater chip.

Fig. 2 illustrates a schematic structure of an electrothermal film element mounted on a heat-conductive silicone sheet.

Fig. 3 illustrates a schematic view of the internal space of the heat dissipation hole.

Fig. 4 illustrates a schematic diagram of the deformation of the elastic heat-resistant film.

Fig. 5 illustrates a schematic view of the structure of the side of the insulating element facing away from the element of electrocaloric membrane.

Fig. 6 illustrates a schematic view of the structure of the bead.

Fig. 7 illustrates a close-up view of the bead.

Detailed Description

The terms and words used in the following specification and claims are not limited to the literal meanings, but are merely used by the inventors to enable a clear and consistent understanding of the application. Accordingly, it will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present application are provided for illustration only and not for the purpose of limiting the application as defined by the appended claims and their equivalents.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

While ordinal numbers such as "first", "second", etc., will be used to describe various components, those components are not limited thereto. The term is used only to distinguish one component from another component. For example, a first component could be termed a second component, and, similarly, a second component could be termed a first component, without departing from the teachings of the present inventive concept. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, numbers, steps, operations, components, elements, or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

Summary of the application

With the increasing maturity of new energy automobile technology and the cleverness and the high price of traditional energy, new energy automobile replaces traditional energy automobile to a certain extent and is embraced at the wholesale by the user, therefore new energy automobile market prospect is optimistic. The battery is used as a power element of a new energy automobile, the performance of the battery is attenuated by the influence of low temperature, and the battery heating plate is widely used for solving the influence of the low temperature on the battery. However, the conventional battery heating sheet only comprises a heating element and a silica gel sheet for conducting heat and sealing the heating element, so that the heat conduction efficiency is limited, and when one of the silica gel sheets abuts against the battery, the heat at one end of the heating element, which is far away from the battery, is lost by the outside and is not effectively utilized.

Therefore, there is a need to provide a battery heating plate with high heat conduction efficiency, low heat loss, safety and reliability.

Based on the technical problem, the application provides a high heat conduction battery heating plate, wherein, high heat conduction battery heating plate simple structure does not relate to complicated manufacturing process and expensive material, has higher economic nature, and simultaneously, to the manufacture factory, the high heat conduction battery heating plate that this application provided is easily produced, and low cost, more is favorable to controlling manufacturing cost, further is favorable to product popularization and use.

An exemplary high thermal conductivity cell heater chip,

referring to fig. 1 to 7, according to a preferred embodiment of the present invention, a battery heater strip with high heat conduction includes a heat conductive silicone sheet 10 and an electrothermal film element 20, and when the battery heater strip with high heat conduction is assembled, the electrothermal film element 20 is attached to the heat conductive silicone sheet 10.

Specifically, as shown in fig. 2, the electrothermal film element 20 has two terminals 201 and a heat-emitting end 202, the heat-emitting end 202 is located between the two terminals 201, two ends of the heat-emitting end 202 are respectively communicated with the two terminals 201, and the two terminals 201 and the heat-emitting end 202 are implemented as an integral molding. The two terminals 201 are oppositely arranged, the two terminals 201 are located at the same end of the heat-conducting silica gel sheet 10, and the heating end 202 extends from one heating end 202 to the other heating end 202 in a zigzag progressive mode.

Specifically, the heat-conducting silicone sheet 10 has a plurality of heat-conducting holes 101 penetrating therethrough, the heat-conducting holes 101 are located in an area of the heat-conducting silicone sheet 10 not covered by the electrothermal film element 20, and the heat-conducting holes 101 are arranged close to the heat-emitting end 202.

Since each zigzag angle of the zigzag progression of the heat-emitting end 202 is a right angle and the shape of the space between two adjacent heat-emitting ends 202 is approximately rectangular when the heat-emitting ends 202 are zigzag progression, the shape of the heat-conducting hole 101 is further implemented as a rectangular hole. Implementing the heat-conducting hole 101 as a rectangular hole helps to control the distance between the heat-conducting hole 101 and the adjacent heat-emitting end 202 (which is convenient for measuring the distance between the edge of the rectangular hole in each direction and the adjacent heat-emitting end 202).

Specifically, when the electrothermal film element 20 is mounted on the heat-conducting silicone sheet 10, the heat-conducting hole 101 is located on one side of the heat-emitting end 202, and the distance between the edge of the heat-conducting hole 101 and the adjacent heat-emitting end 202 is 2 to 5 mm, so as to prevent the phenomenon that the heat-conducting hole 101 is directly attached to the heat-emitting end 202, rather than the heat-conducting hole 101 being located on both sides of the heat-emitting end 202, after assembly due to machining errors, which will cause the heat-conducting hole 101 to lose its function.

Further, the high heat conduction battery heating plate further comprises a heat preservation element 30, when the electrothermal film element 20 is attached to the heat conduction silica gel sheet 10, the heat preservation element 30 is attached to the electrothermal film element 20 and is attached to the heat conduction silica gel sheet 10 at the same time, that is, the electrothermal film element 20 is located between the heat conduction silica gel sheet 10 and the heat preservation element 30. The insulating element 30 is further embodied as pearl wool.

It should be noted that, when the high heat conduction battery heating plate works, the heat conduction silicone sheet 10 abuts against the battery 90, the two terminals 201 of the electric heating film element 20 are powered on, and the heat-generating end 202 generates heat. One side of heat generated by the heating end 202 is transferred to the heat-conducting silica gel sheet 10, and the heat is transferred to the battery through the heat-conducting silica gel sheet 10, so that the automobile battery is heated; the heat generated at the other side of the heating end 202 is transferred to the heat preservation element 30, and because the heat conductivity coefficient of the heat preservation element 30 is small, most of the heat is transferred to the direction of the heat conduction silica gel sheet 10 and the two side walls of the heating end 202; because the plurality of heat conduction holes 101 are arranged near the heat-emitting end 202, when the heat conduction silica gel sheet 10 abuts against the battery 90, the heat conduction holes 101 are also attached to the battery 90. Because there is a temperature difference between the battery 90 and the heat-conducting silicone sheet 10, the heat generated by the side wall of the heat-emitting end 202 and a part of the heat generated by the heat-emitting end 202 near the heat-insulating element 30 are transferred to the heat-conducting silicone sheet 10 first and then directly transferred to the battery through the heat-conducting hole 101, so that the heat generated by the heat-emitting end 202 in the horizontal direction is utilized, and the heat-conducting efficiency is improved.

However, as shown in fig. 3, the heat-conducting hole 101 is formed in the heat-conducting silicone sheet 10, and since one side of the heat-conducting hole 101 is communicated with the outside, air inevitably remains in the heat-conducting hole 101 when the heat-conducting silicone sheet 10 is attached to the battery 90. As the temperature rises, the air trapped in the heat conduction hole 101 expands, but since one side of the heat conduction hole 101 is attached to the battery 90 and the other side is completely sealed by the heat insulating member 30, that is, the volume of the heat conduction hole 101 is fixed, the pressure of the air trapped in the heat conduction hole 101 increases. Although the air has compressibility, there is still a safety hazard, for example, a gap is generated between the heat conductive silicon sheet and the electrothermal film element 20, or a gap is generated between the heat preservation element 30 and the electrothermal film element 30.

The high thermal conductivity battery heater chip is now improved in view of the above problems.

Specifically, the heat preservation element 30 is provided with a plurality of grooves 301, the battery heating plate with high heat conduction further comprises an elastic heat-resistant film 40, when the battery heating plate with high heat conduction is assembled, the grooves 301 face the heat conduction holes 101 in the heat conduction silica gel sheet 10, two surfaces of the electric heating film element 20 are respectively attached to the elastic heat-resistant film 40 and the heat conduction silica gel sheet 10, the heat preservation element 30 is located on one side of the elastic heat-resistant film 40, which is far away from the electric heating film element 20, and one surface of the heat preservation element 30, which is provided with the grooves 301, is attached to the elastic heat-resistant film 40. The elastic heat-resistant film 40 is implemented as a thermoplastic polyurethane elastomer rubber (TPU). It should be noted that, the manner of abutting or attaching each of the above elements is the prior art, and is not limited to glue, heat bonding, spot welding, and vacuum bonding.

As shown in fig. 4, when the battery heater chip with high thermal conductivity operates, the air in the heat conduction hole 101 expands, the elastic heat-resistant film 40 deforms toward the groove 301 under the action of pressure, and the deformation of the elastic heat-resistant film increases the space inside the heat conduction hole 101, so that the pressure is balanced. When the battery heating sheet with high heat conduction stops working, the air in the heat conduction hole 101 gradually returns to normal temperature, and the elastic heat-resistant film 40 also returns to the original shape. It should be noted that, when the elastic heat-resistant film 40 is attached to the heat-insulating element 30, the groove 301 of the heat-insulating element 30 is vacuumized.

Because a plurality of heat conduction holes 101 are seted up to the battery heating plate of high thermal conductivity, the bending strength of heat conduction silica gel piece 10 further reduces, improves this now: as shown in fig. 5 and 6, a plurality of fastening holes 302 are formed in a side of the heat preservation element 30 away from the electrothermal film element 20, the high heat conduction battery heating sheet further includes a pressing strip 50, and the pressing strip 50 is i-shaped, so that the strength is considered and the material is saved; one side of layering 50 has the protruding 501 of joint that a plurality of intervals set up, layering 50 with heat preservation component 30 deviates from the laminating of one side of electric heat membrane element 20, just joint protruding 501 with joint hole 302 joint.

Because of the protruding 501 height of joint is limited, as shown in fig. 7, still have a injecting glue through-hole 501A on the protruding 501 roof of joint, injecting glue through-hole 501A link up layering 50 protruding 501 of joint with during joint hole 302 joint, the processing personnel will be poured in advance amount of glue to injecting glue through-hole 501A, glue passes through injecting glue through-hole 501A makes layering 50 with heat preservation component 30 splices. The bead 50 is further fixed to the insulating element 30.

Due to the existence of the pressing strip 50, the bending strength of the high-heat-conduction battery heating piece is greatly improved, and the problem that the bending strength of the high-heat-conduction battery heating piece is low due to the fact that the plurality of heat conduction holes 101 are formed in the high-heat-conduction battery heating piece is solved.

It should be further noted that the material of the pressing strip 50 is plastic.

In summary, the high thermal conductive battery heating sheet according to the embodiment of the present application is clarified, which provides the high thermal conductive battery heating sheet with the advantages of high thermal conductive efficiency, low thermal energy loss, safety, reliability, and the like.

It is worth mentioning that, in the embodiment of the present application, the battery heating sheet with high heat conduction has a simple structure, does not involve a complicated manufacturing process and expensive materials, and has high economical efficiency. Meanwhile, for manufacturers, the high-heat-conduction battery heating piece is easy to produce, low in cost, more beneficial to controlling production cost and further beneficial to product popularization and use.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments, and any variations or modifications may be made without departing from the principles of the present invention.

Claims

1. A high thermal conductivity battery heater chip characterized in that: the high thermal conductive battery heating sheet includes:

2. The high heat conduction battery heater chip of claim 1, wherein: the elastic heat-resistant film is thermoplastic polyurethane elastomer rubber.

3. The high thermal conductivity battery heating chip of claim 1, wherein: the electric heating film element is provided with two wiring ends and a heating end, the heating end is located between the two wiring ends, the two ends of the heating end are respectively communicated with the two wiring ends, the two wiring ends and the heating end are integrally formed, the two wiring ends are oppositely arranged, the two wiring ends are located at the same end of the heat-conducting silica gel sheet, and the heating end extends from one of the heating ends to the other heating end in a zigzag progressive mode.

4. The high thermal conductivity battery heating chip of claim 1, wherein: the heat preservation component is pearl cotton.

5. A high thermal conductivity battery heating plate as set forth in claim 3, wherein: each zigzag angle of the heating end which is zigzag and progressive is a right angle, and the heat conduction holes are rectangular holes.

6. The high heat conduction battery heater chip of claim 3, wherein: when the electric heating film element is installed on the heat-conducting silica gel sheet, the distance between the edge of the heat-conducting hole and the adjacent heating end is 2-5 mm.

7. The high heat conduction battery heater chip of claim 3, wherein: the heat preservation component deviates from one side of electric heat film element has a plurality of joint holes, the battery heating piece of high heat conduction still includes a layering, one side of layering has the joint arch that a plurality of intervals set up, the layering with the heat preservation component deviates from one side of electric heat film element supports and leans on, just the joint arch with joint hole joint.

8. The high thermal conductivity battery heating chip of claim 7, wherein: the clamping protrusion is further provided with a glue injection through hole, and the glue injection through hole penetrates through the pressing strip.

9. The high thermal conductivity battery heating chip of claim 8, wherein: the pressing strip is I-shaped.

10. A high thermal conductivity battery heating chip as claimed in any one of claims 7 to 9, wherein: the pressing strip is made of plastic.