Heating film of new energy automobile battery module
By combining the silicone heating film with limiting holes, limiting blocks and limiting pins, the problems of poor adhesion and displacement between the heating film and the battery module are solved, achieving a stable connection between the heating film and the battery module and uniform heat transfer, thus improving the charging and discharging performance of the battery module in low-temperature environments.
Patent Information
- Application Number
- CN202423274522.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-30
AI Technical Summary
The existing single-piece heating film design results in poor adhesion to the battery module, affecting heat transfer. Furthermore, it is prone to displacement during vehicle movement, leading to uneven heating and safety hazards.
A silicone heating film is used, and through the cooperation of limiting holes, limiting blocks and limiting pins, the heating film body is stably connected to form an integral structure to adapt to battery modules of different sizes and ensure uniform heat transfer.
This improves the adhesion between the heating film and the battery module, avoiding uneven heating and displacement issues, and ensuring the charging and discharging performance of the battery module in low-temperature environments.
Smart Images
Figure CN223828524U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of heating film, and specifically relates to a heating film of new energy automobile battery module. BACKGROUND
[0002] The heating film belongs to a flexible heating sheet, is composed of an insulating film, a metal heating wire, a thermistor and positive and negative lead wires, is a heating sheet formed through high-temperature and high-pressure heat sealing, the heating core is an alloy sheet, the outer insulator is a polyimide film or silica gel, and the inner conductive heating body is a metal foil or a metal wire.
[0003] The existing heating film is usually arranged in a single piece, and then is placed on the side or bottom of the battery module to realize the heating function through heat transfer. Since the heating film is arranged in a single piece, if the heating film is wrapped around the periphery of the battery module, the head and tail of the heating film cannot be well attached to the battery module, which affects the heat transfer effect. In addition, if the heating film is placed on the bottom of the battery module, since the heating film is not a whole, the heating film is prone to displacement during the movement of the automobile, so that the stacked parts are unevenly heated, and the safety problem is caused. UTILITY MODEL CONTENTS
[0004] I. Technical problems to be solved
[0005] The utility model to be solved technical problem is that the head and tail of the single heating film cannot be well attached to the battery module, which affects the heat transfer effect. The heating film is prone to displacement during the movement of the automobile, so that the heating is uneven and the safety problem is caused.
[0006] II. Technical scheme
[0007] To solve the above technical problems, the utility model provides a technical scheme of a heating film of a new energy automobile battery module. The heating film body is a silica gel heating film. A plurality of limiting holes are arranged on the top and bottom of one side of the heating film body. A limiting block is arranged on the other side of the heating film body. A limiting pin is arranged in the limiting block. The limiting pin can drive the limiting block and the limiting hole to be stably matched and limited.
[0008] Further, the limiting holes are arranged at equal intervals, and the number of the limiting holes is not less than three. The limiting block is matched and limited with the limiting holes at different positions, so that the heating film body can be connected into a whole with different lengths, so as to wrap the battery module with different outer diameters, and to better realize the heat transfer of the battery module.
[0009] Further, the limiting block comprises two oppositely arranged semicylinders made of rubber material, the limiting hole is a stepped hole, the semicylinders are matched with the stepped hole, a gap is arranged between the semicylinders, a groove is arranged in the middle of the free end of the semicylinder, a limiting slot is arranged at the other end of the groove, the limiting pin is matched with the groove, a limiting rod is connected to the other end of the limiting pin, the limiting rod is matched with the limiting slot, the semicylinders are penetrated through the limiting hole, the semicylinders can be deformed in the hollow state due to the gap between the semicylinders and the groove and the rubber material, the end face outer wall of the semicylinder can be chamfered, thereby facilitating the penetration of the semicylinders through the limiting hole, then the limiting pin is inserted into the groove, the two semicylinders are opened, the semicylinders are stably limited with the limiting hole of the stepped hole structure, the heating film body of the limiting hole is prevented from being separated from the semicylinders, then the limiting rod is matched with the limiting slot to lock the limiting pin, thereby completing the limiting installation between the two heating film bodies.
[0010] Further, the limiting slot is a ring slot structure, a through hole extending out of the semicylinder is arranged on the limiting slot, the through hole is matched with the limiting rod, the limiting rod on the limiting pin can smoothly penetrate through the through hole and reach the ring slot.
[0011] Further, the groove is a conical structure, a counterbore is connected to the semicylinder, the free end of the limiting pin is matched with the counterbore, a slot or a cross slot is arranged on the side of the free end of the limiting pin, the groove with the conical structure is arranged to facilitate driving the semicylinder to be as far as possible to be expanded outward, thereby realizing stable limiting with the limiting hole of the stepped hole structure; after the limiting pin is installed, the limiting pin can be matched with the counterbore to prevent the end from being extended out and being misoperated, the slot or the cross slot is arranged to facilitate driving the limiting pin by using a corresponding tool.
[0012] Further, the heating film body is connected with a connecting line on one side, a connector is connected to the other end of the connecting line, an anti-skid layer is connected to the heating film at the connecting line, a series connection interface matched with the connector is arranged on the other side of the heating film, the connecting line, the connector and the series connection interface are matched to facilitate electrical series connection between adjacent heating film bodies.
[0013] Three, beneficial effects
[0014] The utility model discloses compared with prior art has the advantages of:
[0015] The silicon heating film has good temperature resistance and pressure resistance, a wide working temperature range, and can perform shock absorption and anti-skid to a certain extent; the cooperation of the limiting hole, the limiting block and the limiting pin facilitates limiting connection between one heating film body and multiple heating film bodies to form a whole according to needs, so that different sizes of battery modules can be managed, so that the lithium battery does not affect the charging and discharging performance in winter low temperature environment. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is a structure diagram of a heating film of a new energy automobile battery module Figure 1 .
[0017] Figure 2 is a structure diagram of a heating film of a new energy automobile battery module Figure 2 .
[0018] Figure 3 is a structure diagram of a heating block in a heating film of a new energy automobile battery module.
[0019] Figure 4 is a side cross-sectional structure diagram of a heating film of a new energy automobile battery module.
[0020] Figure 5 is Figure 4 an enlarged structure diagram of A.
[0021] Figure 6 is a bottom cross-sectional structure diagram of a heating film of a new energy automobile battery module.
[0022] Figure 7 is Figure 6 an enlarged structure diagram of B.
[0023] As shown in the figure: 1, heating film body, 2, limiting hole, 3, limiting block, 4, limiting pin, 5, semicircular column, 6, gap, 7, groove, 8, limiting slot, 9, limiting rod, 10, through hole, 11, counterbore, 12, connecting line, 13, series interface. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments; based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0025] Embodiment one
[0026] Combined with appendix Figure 1 and Figure 2 A heating film for a new energy vehicle battery module includes a heating film body 1, wherein the heating film body 1 is a silicone heating film. The silicone heating film not only has good temperature and pressure resistance, but also has a wide operating temperature range, and can also provide shock absorption and anti-slip properties to a certain extent.
[0027] Combined with appendix Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The heating film body 1 has several limiting holes 2 connected to each other on its top and bottom sides. The limiting holes 2 are evenly spaced, and there are no fewer than three sets of limiting holes 2. A limiting block 3 is connected to the other side of the heating film body 1. A limiting pin 4 is provided inside the limiting block 3. The limiting pin 4 can drive the limiting block 3 to stably engage with the limiting holes 2. The limiting block 3 includes two opposing semi-cylinders 5 made of rubber. The limiting holes 2 are stepped holes, and the opposing semi-cylinders 5 engage with the stepped holes. A gap 6 is provided between the opposing semi-cylinders 5. A groove 7 is provided in the middle of the free end, and a limiting groove 8 is provided at the other end of the groove 7. The limiting pin 4 cooperates with the groove 7. The groove 7 has a conical structure. A countersunk hole 11 is connected to the semi-cylinder 5. The countersunk hole 11 cooperates with the free end of the limiting pin 4. A slot or cross slot is opened on the free end side of the limiting pin 4. A limiting rod 9 is connected to the other end of the limiting pin 4. The limiting rod 9 cooperates with the limiting groove 8. The limiting groove 8 has an annular groove structure. A through hole 10 extends from the semi-cylinder 5 on the limiting groove 8. The through hole 10 cooperates with the limiting rod 9.
[0028] By limiting the position of the limiting block 3 and the limiting hole 2 at different positions, or by limiting the position of the limiting block 3 on the adjacent heating film body 1 and the limiting hole 2, a heating film body 1 and multiple heating film bodies 1 can be connected into a whole as needed, so that thermal management can be performed on battery modules of different sizes, so that the charging and discharging performance of lithium batteries is not affected in the low temperature environment in winter.
[0029] Example 2
[0030] Based on Example 1, combined with Appendix Figure 1 and Figure 2 The heating film body 1 has a connecting line 12 connected to one side, and a connector connected to the other end of the connecting line 12. The heating film has an anti-slip layer connected to the connecting line 12, and a series interface 13 that mates with the connector is provided on the other side of the heating film.
[0031] The connection of the connecting line 12, the connector and the series interface 13 facilitates the electrical series connection between adjacent heating film bodies 1.
[0032] The specific usage method is as follows:
[0033] By passing the semi-cylinder 5 through the limiting hole 2, the semi-cylinder 5 can deform due to the gap 6 between the semi-cylinders 5 and the groove 7, as well as its rubber material, even though it is hollow inside. The outer wall of the end face of the semi-cylinder 5 can be chamfered, which facilitates the semi-cylinder 5 passing through the limiting hole 2. Then, the limiting pin 4 is inserted into the groove 7, which cooperates with the limiting rod 9 relative to the through hole 10, so that the limiting rod 9 on the limiting pin 4 can smoothly pass through the through hole 10 and reach the annular groove where the limiting groove 8 is located. The conical groove 7 and the cooperation between the limiting pin 4 and the groove 7 facilitate passage. The conical limiting pin 4 drives the two semi-cylinders 5 to expand outward as much as possible, thereby achieving stable positioning with the limiting hole 2 of the stepped hole structure, preventing the heating film body 1 of the limiting hole 2 from detaching from the semi-cylinder 5. Then, the limiting pin 4 is rotated so that the limiting rod 9 cooperates with the limiting groove 8 to lock the limiting pin 4, thereby completing the limiting installation between two adjacent or one heating film body 1. After installation, the limiting pin 4 can cooperate with the countersunk hole 11 to prevent the end from protruding and being accidentally operated. The setting of the slot or cross groove makes it easy to drive the limiting pin 4 with appropriate tools.
[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A heating film for a new energy vehicle battery module, comprising a heating film body (1), characterized in that: The heating film body (1) is a silicone heating film. A plurality of limiting holes (2) are respectively connected to the top and bottom of one side of the heating film body (1). A limiting block (3) is connected to the other side of the heating film body (1). A limiting pin (4) is provided in the limiting block (3). The limiting pin (4) can drive the limiting block (3) to stably cooperate with the limiting hole (2) for limiting.
2. The heating film for a new energy vehicle battery module according to claim 1, characterized in that: The limiting holes (2) are arranged at equal intervals, and the number of limiting holes (2) is not less than three sets.
3. The heating film for a new energy vehicle battery module according to claim 1, characterized in that: The limiting block (3) includes two oppositely arranged semi-cylinders (5) made of rubber. The limiting hole (2) is a stepped hole. The opposite semi-cylinders (5) cooperate with the stepped hole. A gap (6) is provided between the opposite semi-cylinders (5). A groove (7) is provided in the middle of the free end of the semi-cylinder (5). A limiting groove (8) is provided at the other end of the groove (7). The limiting pin (4) cooperates with the groove (7). A limiting rod (9) is connected to the other end of the limiting pin (4). The limiting rod (9) cooperates with the limiting groove (8).
4. The heating film for a new energy vehicle battery module according to claim 3, characterized in that: The limiting groove (8) is an annular groove structure. The limiting groove (8) is provided with a through hole (10) extending out of a semi-cylinder (5). The through hole (10) cooperates with the limiting rod (9).
5. The heating film for a new energy vehicle battery module according to claim 4, characterized in that: The groove (7) is a conical structure, and a countersunk hole (11) is connected to the semi-cylinder (5). The countersunk hole (11) is engaged with the free end of the limiting pin (4). A slot or a cross slot is opened on the free end side of the limiting pin (4).
6. The heating film for a new energy vehicle battery module according to claim 1, characterized in that: A connecting line (12) is connected to one side of the heating film body (1), and a connector is connected to the other end of the connecting line (12). An anti-slip layer is connected to the heating film at the connecting line (12), and a series interface (13) that cooperates with the connector is provided on the other side of the heating film.