Heating film group for heating power battery
By designing a power battery heating film set including multi -layer materials and sliding connection structures, the problem of decline in lithium electronic power battery performance in low temperature environments and hidden safety hazards have been solved, and the effects of uniform heating, energy saving and fast replacement have been achieved.
Patent Information
- Application Number
- CN202323475675.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-20
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2033-12-20
AI Technical Summary
In low-temperature environments, the performance of lithium-electronic power batteries declines, especially the battery capacity decreases, which increases the risk of service life. Lithium excretion is prone to occur during charging, causing internal short circuits of the battery, posing safety hazards.
The heating film set with a power battery is designed, including the base, thermal conductivity, the insulation layer, the heat thermal layer, the waterproof layer, the rubber cover, the first electrode, the second electrode and the wiring terminal. The combination of fastening bolts, pressure plates, fixed seats, grooves, limited rods, springs and pushes to achieve uniform heating and easy disassembly assembly of heating components.
The uniform heating of the battery is achieved, the heat loss is less, the heat storage time is long, which effectively saves electric energy consumption, and is convenient for quickly replacing the heating film set, saving the processing time, and improving safety performance.
Smart Images
Figure CN222422097U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of batteries, in particular to a heating film group for heating a power battery. Background Art
[0002] Lithium-ion power batteries have the characteristics of high energy density, long service life, and high voltage. They are widely used in the power energy storage and supply systems of new energy electric vehicles. In low temperature environments, the performance of lithium-ion power batteries decreases, especially the battery capacity decreases, which reduces the service life. The power battery heating film is a heating device for electric vehicle battery packs. Its working principle is to use the thermal conductivity and resistivity of the film material to increase the operating temperature of the battery by heating it with electricity.
[0003] In the prior art, when charging a lithium-ion power battery in a low-temperature environment, lithium deposition is likely to occur at the negative electrode, causing an internal short circuit in the battery and resulting in a safety accident. Utility Model Content
[0004] The purpose of the utility model is to provide a heating film group for heating a power battery, which can heat the components to achieve uniform heating of the battery, with less heat loss and longer heat storage time, effectively saving the consumption of electric energy, and is easy to disassemble and assemble, and can be quickly replaced in time when a fault occurs, effectively saving processing time.
[0005] In order to achieve the above-mentioned purpose, a heating film group for heating a power battery is provided, comprising a battery, a heating component and a fixing component;
[0006] The heating assembly comprises a base, a heat-conducting layer is fixedly connected to the right side of the base, an insulating layer is arranged on the side of the heat-conducting layer, a heat-insulating layer is arranged on the side of the insulation layer, a waterproof layer is arranged on the side of the heat-insulating layer, a rubber hoop is fixedly connected to the right side of the heat-conducting layer, the insulation layer, the heat-insulating layer and the waterproof layer, a first electrode and a second electrode are arranged on the right side of the heat-conducting layer, and the heads of the first electrode and the second electrode are arranged with wiring terminals;
[0007] The fixing assembly includes a slide groove, a fastening bolt is threadedly connected to the side of the slide groove, a pressure plate is fixedly connected to the bottom of the fastening bolt, a fixing seat is fixedly connected to the side of the slide groove, a groove is provided on the inner wall of the fixing seat, a limiting rod is inserted inside the fixing seat, and push heads are provided at the upper and lower ends of the limiting rod.
[0008] According to the heating film group for heating a power battery, the heat conductive layer is made of copper, and the insulating layer is made of polyimide resin.
[0009] According to the heating film group for heating a power battery, the heat insulating layer is made of rock wool, and the waterproof layer is made of polyurethane waterproof coating.
[0010] According to the heating film group for heating a power battery, the heating component is slidably connected to the inside of the slide groove.
[0011] According to the heating film group for heating a power battery, a screw hole is provided on the side of the slide groove, and the screw hole is threadedly connected to the fastening bolt.
[0012] According to the heating film group for heating a power battery, a spring is fixedly connected to the interior of the limiting rod, and the spring is fixedly connected to the pushing head.
[0013] According to the heating film group for heating a power battery, the number of the screw holes, the fastening bolts, the pressure plate and the fixing seat is two.
[0014] According to the heating film group for heating a power battery, the number of the grooves, springs and push heads is four.
[0015] The utility model has the following beneficial effects:
[0016] 1. Compared with the prior art, the heating film group for heating the power battery is provided with a base, a heat conductive layer, an insulating layer, a heat insulating layer, a waterproof layer, a rubber sleeve, a first electrode, a second electrode and a terminal, which can realize the function of uniform heating of the battery, less heat loss and longer heat storage time, and effectively saves the effect of electric energy consumption.
[0017] 2. Compared with the prior art, the heating film group for heating the power battery has the function of being easy to disassemble and assemble by setting a slide groove, screw holes, fastening bolts, pressure plates, fixing seats, grooves, limit rods, springs and push heads. It can be quickly replaced in time when a fault occurs, effectively saving processing time.
[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments;
[0020] Figure 1 This is a schematic diagram of the overall structure of a heating film group for heating a power battery according to the utility model;
[0021] Figure 2 This is a schematic diagram of the chute structure of a heating film group for heating a power battery in the utility model;
[0022] Figure 3 This is a schematic diagram of the heating component structure of a heating film group for heating a power battery according to the utility model;
[0023] Figure 4 This is a schematic diagram of the limit rod structure of a heating film group for heating a power battery in the utility model;
[0024] Figure 5 This is a schematic diagram of the fastening bolt structure of a heating film group for heating a power battery according to the utility model;
[0025] Figure 6 The utility model is a schematic diagram of the pusher structure of a heating film group for heating a power battery.
[0026] Legend:
[0027] 1. Battery; 2. Heating component; 3. Fixing component;
[0028] 20. Base; 21. Heat-conducting layer; 22. Insulating layer; 23. Heat-insulating layer; 24. Waterproof layer; 25. Rubber sleeve; 26. First electrode; 27. Second electrode; 28. Terminal block;
[0029] 30. Slide groove; 31. Screw hole; 32. Fastening bolt; 33. Pressing plate; 34. Fixing seat; 35. Groove; 36. Limiting rod; 37. Spring; 38. Pushing head. DETAILED DESCRIPTION
[0030] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0031] Reference Figure 1-6 An embodiment of the utility model provides a heating film group for heating a power battery, which includes a battery 1, a heating component 2 and a fixing component 3.
[0032] The heating component 2 includes a base 20, a heat-conducting layer 21 is fixedly connected to the right side of the base 20, an insulating layer 22 is arranged on the side of the heat-conducting layer 21, the heat-conducting layer 21 is made of copper, the insulating layer 22 is made of polyimide resin, a heat-insulating layer 23 is arranged on the side of the insulating layer 22, a waterproof layer 24 is arranged on the side of the heat-insulating layer 23, the heat-insulating layer 23 is made of rock wool, and the waterproof layer 24 is made of polyurethane waterproof coating, a rubber hoop 25 is fixedly connected to the right side of the heat-conducting layer 21, the insulating layer 22, the heat-insulating layer 23 and the waterproof layer 24, a first electrode 26 and a second electrode 27 are arranged on the right side of the heat-conducting layer 21 for transmitting current, and a terminal 28 is arranged at the head of the first electrode 26 and the second electrode 27 for connecting to an external power supply, so as to heat the heat-conducting layer 21 thereof, so as to heat the battery 1.
[0033] The fixing component 3 includes a slide groove 30 for installing the heating component 2. The heating component 2 is slidably connected to the inside of the slide groove 30. The side of the slide groove 30 is threadedly connected with a fastening bolt 32. The side of the slide groove 30 is provided with a screw hole 31. The screw hole 31 is threadedly connected with the fastening bolt 32. The bottom of the fastening bolt 32 is fixedly connected with a pressing plate 33, which is used to drive the pressing plate 33 to fix its heating component 2 through the fastening bolt 32 and the screw hole 31. The side of the slide groove 30 is fixedly connected with a fixing seat 34. The screw hole 31, the fastening bolt 32, and the pressing plate 33 are fixedly connected to the bottom of the fastening bolt 32. The number of the plate 33 and the fixing seat 34 is two screw holes 31, the number of the fastening bolts 32, the number of the pressure plate 33 and the fixing seat 34 is two, the inner wall of the fixing seat 34 is provided with a groove 35 for the insertion and installation of the limit rod 36, the interior of the fixing seat 34 is inserted with the limit rod 36, the upper and lower ends of the limit rod 36 are provided with push heads 38, the interior of the limit rod 36 is fixedly connected with a spring 37 for pressing and rebounding and pushing, the spring 37 is fixedly connected to the push head 38, and the number of the groove 35, the spring 37 and the push head 38 is four.
[0034] Working principle: When in use, align the heating component 2 with the slide groove 30 and then push it inward so that the base 20 touches the bottom of the slide groove 30, then rotate the fastening bolt 32 to push the pressure plate 33 in the screw hole 31 to fix its heating component 2, then align the limit rod 36 with the fixing seat 34, then press the push head 38 and the spring 37 will shrink inward, then push the limit rod 36 to be inserted into the fixing seat 34, then the spring 37 rebounds and pushes the push head 38 to be inserted into the groove 35, so as to prevent the heating component 2 from loosening from the slide groove 30, then connect the terminal 28 to the external power supply, and transmit current to the heat conductive layer 21 through the first electrode 26 and the second electrode 27, so as to generate heat to heat its battery 1.
[0035] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. A heating film group for heating a power battery, characterized in that: It comprises a battery (1), a heating component (2) and a fixing component (3); The heating component (2) comprises a base (20), a heat-conducting layer (21) is fixedly connected to the right side of the base (20), an insulating layer (22) is arranged on the side of the heat-conducting layer (21), a heat-insulating layer (23) is arranged on the side of the insulation layer (22), a waterproof layer (24) is arranged on the side of the heat-insulating layer (23), a rubber hoop (25) is fixedly connected to the right side of the heat-conducting layer (21), the insulation layer (22), the heat-insulating layer (23) and the waterproof layer (24), a first electrode (26) and a second electrode (27) are arranged on the right side of the heat-conducting layer (21), and a connection terminal (28) is arranged at the head of the first electrode (26) and the second electrode (27); The fixing assembly (3) comprises a slide groove (30), a side surface of the slide groove (30) is threadedly connected with a fastening bolt (32), the bottom of the fastening bolt (32) is fixedly connected with a pressure plate (33), the side surface of the slide groove (30) is fixedly connected with a fixing seat (34), the inner wall of the fixing seat (34) is provided with a groove (35), a limiting rod (36) is inserted into the interior of the fixing seat (34), and push heads (38) are provided at the upper and lower ends of the limiting rod (36).
2. A heating film assembly for heating a power battery according to claim 1, characterized in that: The heat-conducting layer (21) is made of copper, and the insulating layer (22) is made of polyimide resin.
3. A heating film assembly for heating a power battery according to claim 1, characterized in that: The heat insulation layer (23) is made of rock wool, and the waterproof layer (24) is made of polyurethane waterproof coating.
4. A heating film assembly for heating a power battery according to claim 1, characterized in that: The heating component (2) is slidably connected inside the slide groove (30).
5. The heating film assembly for heating a power battery according to claim 1, characterized in that: A screw hole (31) is provided on the side of the slide groove (30), and the screw hole (31) is threadedly connected to a fastening bolt (32).
6. A heating film assembly for heating a power battery according to claim 1, characterized in that: A spring (37) is fixedly connected inside the limiting rod (36), and the spring (37) is fixedly connected to the pushing head (38).
7. A heating film assembly for heating a power battery according to claim 5, characterized in that: The number of the screw hole (31), the fastening bolt (32), the pressing plate (33) and the fixing seat (34) is two.
8. The heating film assembly for heating a power battery according to claim 1, characterized in that: The number of the groove (35), the spring (37) and the push head (38) is four.