A flexible lithium battery heating sheet

Abstract

The utility model discloses a flexible lithium battery heating sheet, including a coating outer film and a flexible battery, wherein the flexible battery is wrapped inside the coating outer film, the end of the flexible battery is fixedly connected with a flexible wiring strip, the inside of the coating outer film is sleeved with a filling plate, the top of the filling plate is provided with a heating component for heating the flexible battery, a first flexible shell and a second flexible shell are fixedly embedded in the top of the filling plate, a sealed installation chamber is formed between the first flexible shell and the second flexible shell, and a resistance ribbon is provided inside the installation chamber. The utility model utilizes the coordinated use of the coating outer film, the flexible battery, the filling plate, the heating component and the temperature measuring component, so that when the flexible battery is deformed, the heating component and the temperature measuring component can both be deformed correspondingly with the flexible battery, and the resistance ribbon can heat the flexible battery to ensure its normal use in cold weather.

Description

Technical Field

[0001] The utility model relates to the field of lithium batteries, in particular to a flexible lithium battery heating sheet. Background Art

[0002] Lithium battery is a type of battery. With the development of science and technology, lithium battery is used more and more widely. However, with the application of lithium battery, the shape of lithium battery is also varied. Flexible lithium battery is one of them. When the lithium battery is used inside the device, it can deform accordingly with the bending deformation of the device.

[0003] In cold weather, the power storage inside the battery will decrease, and flexible lithium batteries are no exception. Therefore, in cold weather, the lithium battery needs to be heated to ensure the power storage capacity of the lithium battery. However, the existing lithium battery heating plate is usually in the shape of a fixed plate. Therefore, when the flexible lithium battery bends and deforms inside the device, the fixed plate-shaped heating plate will affect the bending of the lithium battery, making it inconvenient for the lithium battery heating component to follow the bending of the lithium battery. Utility Model Content

[0004] The purpose of the utility model is to provide a flexible lithium battery heating sheet to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a flexible lithium battery heating sheet, comprising a coating outer film and a flexible battery, wherein the flexible battery is wrapped inside the coating outer film, and the end of the flexible battery is fixedly connected with a flexible wiring belt;

[0006] A filling plate is sleeved inside the outer film, a heating component for heating the flexible battery is arranged on the top of the filling plate, and the heating component is made of flexible material, a temperature measuring component for detecting the external temperature of the flexible battery is arranged on the top of the filling plate, and a plurality of heat dissipation holes are opened on the top of the filling plate.

[0007] Preferably, the heating assembly comprises:

[0008] A first flexible shell and a second flexible shell, wherein the first flexible shell and the second flexible shell are fixedly connected at corresponding sides, the first flexible shell and the second flexible shell are fixedly embedded on the top of the filling plate, and a sealed installation chamber is formed between the first flexible shell and the second flexible shell;

[0009] A resistance ribbon is arranged inside the installation chamber.

[0010] Preferably, the first flexible shell and the second flexible shell are both made of insulating flexible materials, a bearing groove matching the first flexible shell and the second flexible shell is provided on the top of the filling plate, and the interior of the installation chamber is filled with inert gas.

[0011] Preferably, the first flexible shell and the second flexible shell both have a U-shaped portion and a protruding portion, the protruding portion is fixedly connected to the side of the U-shaped portion, a heating linear cavity is formed between the U-shaped portions, and a heating protruding cavity is formed inside the protruding portion.

[0012] Preferably, the resistance ribbon comprises:

[0013] A straight portion, the straight portion being disposed inside the heating straight chamber;

[0014] A first horizontal line portion, a second horizontal line portion and a third horizontal line portion, wherein the first horizontal line portion, the second horizontal line portion and the third horizontal line portion are located inside the heating protrusion cavity, an end portion of the second horizontal line portion is fixedly connected to the first horizontal line portion and the third horizontal line portion, and an end portion of the first horizontal line portion and an end portion of the third horizontal line portion are both fixedly connected to the straight line portion.

[0015] Preferably, the temperature measuring component comprises:

[0016] A main wiring, wherein the main wiring is fixedly embedded in the top of the filling plate;

[0017] A temperature measuring patch and an auxiliary wiring, wherein the temperature measuring patch is connected to the main wiring through the auxiliary wiring, and the temperature measuring patch is fixedly embedded in the top of the filling plate.

[0018] Technical effects and advantages of the utility model:

[0019] The utility model utilizes the coordinated use of a coating outer film, a flexible battery, a filling plate, a heating component and a temperature measuring component. The first flexible shell, the second flexible shell, the resistance ribbon and the filling plate are all made of flexible deformable materials. Therefore, when the flexible battery is deformed, the heating component and the temperature measuring component can both undergo corresponding deformations with the flexible battery, and the resistance ribbon can heat the flexible battery to ensure its normal use in cold weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the explosion structure of the outer membrane of the utility model.

[0022] Figure 3 It is a schematic diagram of the explosion structure of the heating component of the utility model.

[0023] Figure 4This is a schematic diagram of the overall structure of the resistance ribbon part of the utility model.

[0024] In the figure: 1. outer film; 2. flexible battery; 3. flexible wiring strip; 4. filling plate; 5. heating component; 51. first flexible shell; 511. U-shaped portion; 512. protruding portion; 52. second flexible shell; 53. resistance ribbon; 531. straight portion; 532. first horizontal portion; 533. second horizontal portion; 534. third horizontal portion; 6. temperature measuring component; 61. main wiring; 62. temperature measuring patch; 63. secondary wiring; 7. heat dissipation hole. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides Figure 1-4 A flexible lithium battery heating sheet shown in the figure comprises a coating outer film 1 and a flexible battery 2, wherein the flexible battery 2 is wrapped inside the coating outer film 1, and a flexible wiring belt 3 is fixedly connected to the end of the flexible battery 2, and the flexible battery 2 can be connected to an external device through the flexible wiring belt 3, and a filling plate 4 is sleeved inside the coating outer film 1, and a heating component 5 for heating the flexible battery 2 is arranged on the top of the filling plate 4, and the heating component 5 can generate heat when powered on, thereby heating the flexible battery 2, so that the flexible battery 2 is at a certain temperature, reducing the influence of external cold weather on the power storage of the flexible battery 2, and the heating component 5 is made of flexible material, and a temperature measuring component 6 for detecting the external temperature of the flexible battery 2 is arranged on the top of the filling plate 4, and a plurality of heat dissipation holes 7 are opened on the top of the filling plate 4, and the heat dissipation holes 7 can accelerate the heat dissipation of the flexible battery 2 when the flexible battery 2 dissipates heat.

[0027] In particular, the heating component 5 includes a first flexible shell 51, a second flexible shell 52 and a resistance ribbon 53. The first flexible shell 51 and the second flexible shell 52 are fixedly connected at corresponding sides. The first flexible shell 51 and the second flexible shell 52 are composed of fireproof cloth and a sealing film. The sealing film is located on the outside of the cloth, so that the fireproof cloth supports the resistance ribbon 53. The sealing film can make the interior of the installation chamber sealed to prevent leakage when inert gas is filled into the interior. The first flexible shell 51 and the second flexible shell 52 are fixedly embedded in the top of the filling plate 4. A sealed installation chamber is formed between the first flexible shell 51 and the second flexible shell 52, and the resistance ribbon 53 is arranged inside the installation chamber.

[0028] Furthermore, the first flexible shell 51 and the second flexible shell 52 are both made of insulating flexible materials, and a bearing groove matching the first flexible shell 51 and the second flexible shell 52 is opened on the top of the filling plate 4. The interior of the installation chamber is filled with an inert gas, and the inert gas can prevent the resistance ribbon 53 from spontaneously igniting when it is powered on. The first flexible shell 51 and the second flexible shell 52 both have a U-shaped portion 511 and a protrusion 512. The protrusion 512 is fixedly connected to the side of the U-shaped portion 511. A heating linear chamber is formed between the U-shaped portions 511, and a heating protrusion chamber is formed inside the protrusion 512.

[0029] In particular, the resistance ribbon 53 includes a straight portion 531, a first horizontal portion 532, a second horizontal portion 533 and a third horizontal portion 534. The straight portion 531 is arranged inside the heating straight line chamber, and the first horizontal portion 532, the second horizontal portion 533 and the third horizontal portion 534 are located inside the heating protruding chamber. The end of the second horizontal portion 533 is fixedly connected to the first horizontal portion 532 and the third horizontal portion 534, and the end of the first horizontal portion 532 and the end of the third horizontal portion 534 are both fixedly connected to the straight portion 531. Under the action of the first horizontal portion 532, the second horizontal portion 533 and the third horizontal portion 534, the resistance ribbon 53 can have a protruding heating portion, thereby increasing its heating area.

[0030] Furthermore, the temperature measuring component 6 includes a main connection 61, a temperature measuring patch 62 and a secondary connection 63, and the main connection 61 and the resistance ribbon 53 are electrically connected to the equipment installed with the flexible battery 2 through the flexible connection belt 3, so that the temperature measuring patch 62 transmits the detected temperature of the flexible battery 2 to the equipment, and controls whether the resistance ribbon 53 is powered on to heat the flexible battery 2 according to the temperature of the flexible battery 2, and controls its heating temperature. The main connection 61 is fixedly embedded in the top of the filling plate 4, and the temperature measuring patch 62 is connected to the main connection 61 through the secondary connection 63. The temperature measuring patch 62 is fixedly embedded in the top of the filling plate 4, and the model of the temperature measuring patch 62 is BCW2678.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flexible lithium battery heating sheet, comprising a coating outer film (1) and a flexible battery (2), wherein the flexible battery (2) is wrapped inside the coating outer film (1), and the end of the flexible battery (2) is fixedly connected to a flexible wiring strip (3); It is characterized in that A filling plate (4) is sleeved inside the coating outer film (1), a heating component (5) for heating the flexible battery (2) is arranged on the top of the filling plate (4), and the heating component (5) is made of a flexible material, a temperature measuring component (6) for detecting the external temperature of the flexible battery (2) is arranged on the top of the filling plate (4), and a plurality of heat dissipation holes (7) are opened on the top of the filling plate (4).

2. A flexible lithium battery heating sheet according to claim 1, characterized in that: The heating component (5) comprises: A first flexible shell (51) and a second flexible shell (52), wherein the first flexible shell (51) and the second flexible shell (52) are fixedly connected at corresponding sides, the first flexible shell (51) and the second flexible shell (52) are fixedly embedded in the top of the filling plate (4), and a sealed installation chamber is formed between the first flexible shell (51) and the second flexible shell (52); A resistance ribbon (53) is arranged inside the installation chamber.

3. A flexible lithium battery heating sheet according to claim 2, characterized in that: The first flexible shell (51) and the second flexible shell (52) are both made of insulating flexible materials, a bearing groove matching the first flexible shell (51) and the second flexible shell (52) is provided on the top of the filling plate (4), and the interior of the installation chamber is filled with inert gas.

4. A flexible lithium battery heating sheet according to claim 2, characterized in that: The first flexible shell (51) and the second flexible shell (52) both have a U-shaped portion (511) and a protruding portion (512), wherein the protruding portion (512) is fixedly connected to the side of the U-shaped portion (511), a heating linear chamber is formed between the U-shaped portions (511), and a heating protruding chamber is formed inside the protruding portion (512).

5. The flexible lithium battery heating sheet according to claim 2, characterized in that: The resistance ribbon (53) comprises: A straight portion (531), wherein the straight portion (531) is disposed inside the heating straight chamber; A first horizontal line portion (532), a second horizontal line portion (533) and a third horizontal line portion (534), wherein the first horizontal line portion (532), the second horizontal line portion (533) and the third horizontal line portion (534) are located inside the heating protrusion chamber, an end portion of the second horizontal line portion (533) is fixedly connected to the first horizontal line portion (532) and the third horizontal line portion (534), and an end portion of the first horizontal line portion (532) and an end portion of the third horizontal line portion (534) are both fixedly connected to the straight line portion (531).

6. The flexible lithium battery heating sheet according to claim 1, characterized in that: The temperature measuring component (6) comprises: A main wiring (61), wherein the main wiring (61) is fixedly embedded in the top of the filling plate (4); A temperature measuring patch (62) and an auxiliary wiring (63), wherein the temperature measuring patch (62) is connected to the main wiring (61) via the auxiliary wiring (63), and the temperature measuring patch (62) is fixedly embedded in the top of the filling plate (4).

Images