Household energy storage lithium battery heating film

Abstract

The utility model relates to the technical field of lithium battery heating films, and discloses a household energy storage lithium battery heating film which comprises a heating body resistance wire, the heating body resistance wire is of a planar spiral structure, and high-temperature-resistant and pressure-resistant flexible insulating films are arranged on the two sides of the heating body resistance wire respectively. Etching grooves matched with a heating body resistance wire are oppositely etched in the inner side of the silicone rubber film, the flexible insulating film is subjected to high-temperature press fit and then solidified into a waterproof electrothermal film, the positions, extending out of the electrothermal film, of the two ends of the heating body resistance wire are connected with binding posts, and the binding posts are externally connected with protective sleeves. The binding post on one side is connected with an adjusting assembly capable of adjusting heat generated by the heating body resistance wire. Compared with the prior art, the utility model has the advantages that the heating rate of the lithium battery is convenient to adjust, the binding post is convenient to protect, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery heating film technical field, specifically point to a kind of family energy storage lithium battery heating film. BACKGROUND

[0002] Due to low temperature in winter, the performance of lithium battery will decrease due to the characteristics of low temperature leading to the increase of battery internal resistance, in order to ensure its use effect, a layer of heating film can be coated outside the lithium battery cell, so that the battery can be kept in a suitable temperature range, thereby guaranteeing the normal work of the battery.

[0003] The existing family energy storage lithium battery heating film mainly forms a path through the heating body resistance wire, and then generates heat through the heating body resistance wire, and then the heat is coated outside the cell to heat the lithium battery. However, the resistance value of the heating body resistance wire of the existing family energy storage lithium battery heating film is fixed, and the heat is fixed under the condition of constant current, so the heating rate of the lithium battery cannot be adjusted as needed. Moreover, the terminal post is easily damaged during use, affecting the service life. UTILITY MODEL CONTENTS

[0004] I. Technical problems to be solved

[0005] The technical problem to be solved by the utility model is that the heating rate of the lithium battery cannot be adjusted as needed.

[0006] II. Technical scheme

[0007] To solve the above technical problems, the utility model provides a technical scheme for a family energy storage lithium battery heating film, which comprises a heating body resistance wire. The heating body resistance wire has a planar spiral structure. High-temperature and pressure-resistant flexible insulating films are arranged on both sides of the heating body resistance wire. An etching groove matched with the heating body resistance wire is etched on the inner side of a silicone rubber film. The flexible insulating films are high-temperature and pressure-bonded and then solidified into a waterproof electric heating film. Terminal posts are connected to the ends of the heating body resistance wire extending out of the electric heating film. Protective sleeves are connected to the outside of the terminal posts. An adjusting assembly for adjusting the heat generated by the heating body resistance wire is connected to one of the terminal posts.

[0008] Further, the protective sleeve comprises a tapered sleeve sleeved on the terminal post near the silicone rubber film. A spiral groove is formed in the outer wall of the tapered sleeve to prevent the terminal post from being damaged by being bent at will when it extends out of the electric heating film, thereby prolonging the service life of the terminal post.

[0009] Further, the flexible insulating film is made of silicone glass fiber cloth.

[0010] Further, the adjusting assembly comprises an adjusting box connected to one of the terminal posts, a multi-point resistor is arranged in the adjusting box, a plurality of first contacts are arranged on the multi-point resistor in an array, a connecting ring is arranged in the middle of the adjusting box, an input end and a plurality of output ends are oppositely arranged on the connecting ring, the input end is connected with the terminal post, the output ends are respectively connected with the first contacts through connecting lines, an adjusting rod is rotatably arranged in the connecting ring, a second contact capable of cooperating with the output ends is arranged on the adjusting rod, and a positioning assembly capable of driving the second contact to cooperate with the output ends is arranged on the second contact. 2 Rt, because the resistance of the heating element resistance wire is fixed, the heat generated is proportional to the current.

[0011] Further, the positioning assembly comprises a groove at the bottom end of the adjusting rod, the second contact is slidably arranged in the groove, a limiting groove is oppositely arranged on the inner side of the connecting ring, the limiting groove is matched with the free end of the second contact, and a spring is arranged between the second contact and the groove.

[0012] Further, the free end of the second contact is in V-shaped structure or hemispherical structure, so that the second contact can slide out of the limiting groove under the driving of the adjusting rod, and then the spring is compressed and stored, until the adjusting rod drives the second contact to cooperate with the required output end.

[0013] III. Advantages

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] The heating element resistance wire arranged in the plane spiral structure is convenient for uniformly heating the lithium battery, the flexible insulating film with high temperature resistance and pressure resistance is used to coat the heating element resistance wire, and then the heating element resistance wire is high-temperature pressure combined and solidified into an electric heating film, so that the electric heating film has flexibility, can be attached to various irregular surfaces, is waterproof, insulated, and safe to use, has temperature resistance and aging resistance, can work in a wide temperature range, and prolongs the service life, the protective sleeve is arranged to prolong the service life of the terminal post, and the adjusting assembly is arranged to adjust the heat generation of the heating element resistance wire according to the needs, so that the battery heating rate can be controlled. DRAWINGS

[0016] Figure 1 is a structural schematic view of the household energy storage lithium battery heating film.

[0017] Figure 2It is a half cut structure schematic diagram of the household energy storage lithium battery heating film.

[0018] Figure 3 It is Figure 2 The enlarged structure schematic diagram of the B.

[0019] Figure 4 It is a main cut structure schematic diagram of the household energy storage lithium battery heating film.

[0020] Figure 5 It is Figure 4 The enlarged structure schematic diagram of the A.

[0021] As shown in the figure: 1, heating body resistance wire, 2, flexible insulating film, 3, terminal post, 4, cone sleeve, 5, spiral groove, 6, adjusting box, 7, multi-point resistor, 8, first contact, 9, connecting ring, 10, input end, 11, output end, 12, adjusting rod, 13, second contact, 14, limiting groove, 15, spring. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the present application will be clearly and completely described 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, rather than 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 the present application.

[0023] Embodiment one

[0024] Combined with the drawings Figure 1 And Figure 4 A household energy storage lithium battery heating film, including heating body resistance wire 1, it is characterized in that: the heating body resistance wire 1 is plane spiral structure, the heating body resistance wire 1 both sides are equipped with the flexible insulating film 2 of high temperature resistance and voltage resistance, the flexible insulating film 2 adopts silica gel glass fiber cloth, the inner side of the silica rubber film is etched with etching groove matched with the heating body resistance wire 1, after high temperature compression of the flexible insulating film 2, it is solidified into waterproof electric heating film, the heating body resistance wire 1 both ends extend out electric heating film and are equipped with terminal post 3;

[0025] The heating body resistance wire 1 of plane spiral structure is convenient for uniform heating of lithium battery, and the flexible insulating film 2 of high temperature resistance and voltage resistance is coated after the heating body resistance wire 1, and then is solidified into electric heating film by high temperature compression, so that it has flexible variability, can be attached to various irregular surfaces, waterproof, insulation, ensures the safety of use, temperature-resistant and aging-resistant characteristics, can work in a wide temperature range, prolongs the service life.

[0026] Combined with the drawings Figure 2、 Figure 3 and Figure 5 One side of the terminal post 3 is connected with an adjusting assembly which can adjust the heat generated by the heating resistor 1, the adjusting assembly comprises an adjusting box 6 connected to one side of the terminal post 3, a multi-point resistor 7 is connected in the adjusting box 6, a plurality of first contacts 8 are arrayed on the multi-point resistor 7, a connecting ring 9 is connected in the middle of the adjusting box 6, an input end 10 and a plurality of output ends 11 are oppositely connected on the connecting ring 9, the input end 10 is connected with the terminal post 3, the output ends 11 are respectively connected with the first contacts 8 through connecting wires, an adjusting rod 12 is rotatably connected in the connecting ring 9, and a second contact 13 which can cooperate with the output ends 11 is arranged on the adjusting rod 12;

[0027] The adjusting assembly is arranged to facilitate the contact of the second contact with the output ends with different resistance values, so as to adjust the current in the circuit, thereby controlling the heating rate of the lithium battery by controlling the heating amount of the heating resistor.

[0028] The accompanying drawings are combined Figure 3 and Figure 5 The second contact 13 is connected with a positioning assembly which can drive the second contact 13 to cooperate with the output ends 11, the positioning assembly comprises a groove in the bottom end port of the adjusting rod 12, the second contact 13 is slidably connected in the groove, the free end of the second contact 13 is in V-shaped structure or hemispherical structure, a limiting groove 14 is oppositely connected on the inner side of the connecting ring 9, the limiting groove 14 cooperates with the free end of the second contact 13, and a spring 15 is connected between the second contact 13 and the groove.

[0029] The positioning assembly is arranged to facilitate the temporary positioning of the second contact, so as to avoid the offset of the second contact and affect the use of the electrothermal film.

[0030] Embodiment two

[0031] On the basis of embodiment one, the accompanying drawings are combined Figure 2 A protective sleeve is connected outside the terminal post 3, the protective sleeve comprises a tapered sleeve 4 which is sleeved outside the terminal post 3 near the silicone rubber film, and a helical groove 5 is formed in the outer wall of the tapered sleeve 4.

[0032] The protective sleeve is arranged to prolong the service life of the terminal post 3, and the tapered sleeve 4 with the helical groove 5 can avoid damage caused by the arbitrary bending of the terminal post 3 which extends out of the end of the electrothermal film, so as to prolong the service life.

[0033] The specific use method is as follows:

[0034] The heat generation of the heating element resistance wire 1 can be adjusted according to the need by adjusting the setting of the adjusting assembly, and the battery heating rate can be controlled, the adjusting rod 12 is driven to cooperate with different output terminals 11 by rotating the adjusting rod 12, the free end of the second contact 13 is V-shaped or hemispherical structure, the second contact 13 can slide out of the limiting groove 14 under the driving of the adjusting rod 12, and then the spring 15 is compressed to store energy, until the adjusting rod 12 drives the second contact 13 to cooperate with the required output terminal 11 under the driving of the spring 15, different output terminals 11 correspond to different resistance values, in the case of a certain voltage, and then the current in the circuit can be controlled, based on the Joule law Q=I2Rt, since the resistance of the heating element resistance wire 1 is fixed, the heat generated is proportional to the current.

[0035] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0036] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

[0037] The above describes the present application and its embodiments, which is not restrictive, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by it, without departing from the creative purpose of the present application, without creative design, similar structure and embodiments of the technical scheme can be designed, which should belong to the protection scope of the present application.

Claims

1. A household energy storage lithium battery heating film, comprising a heating body resistance wire (1), characterized in that: The heating element resistance wire (1) is in a planar spiral structure, both sides of the heating element resistance wire (1) are provided with flexible insulation films (2) resistant to high temperature and pressure, the inner side of the silicone rubber film is etched with etching grooves matched with the heating element resistance wire (1), the flexible insulation films (2) are high-temperature pressed and cured into waterproof electric heating films, the heating element resistance wire (1) extends out of the electric heating films at both ends and is connected with terminal posts (3), the terminal posts (3) are connected with protective sleeves outside, and one side of the terminal posts (3) is connected with an adjusting assembly capable of adjusting the heat generated by the heating element resistance wire (1).

2. The household energy storage lithium battery heating film according to claim 1, characterized in that: The protective sleeve comprises a taper sleeve (4) sleeved outside the terminal posts (3) close to the silicone rubber film, and the outer wall of the taper sleeve (4) is provided with a spiral groove (5).

3. The home energy storage lithium battery heating film according to claim 1, characterized in that: The flexible insulation film (2) is made of silica gel glass fiber cloth.

4. The home energy storage lithium battery heating film according to claim 1, characterized in that: The adjusting assembly comprises an adjusting box (6) connected to one side of the terminal post (3), a multi-point resistor (7) is connected in the adjusting box (6), a plurality of first contacts (8) are arranged on the multi-point resistor (7), a connecting ring (9) is connected in the middle of the adjusting box (6), an input end (10) and a plurality of output ends (11) are connected to the connecting ring (9), the input end (10) is connected with the terminal post (3), the output ends (11) are respectively connected with the first contacts (8) through connecting lines, an adjusting rod (12) is rotatably connected in the connecting ring (9), a second contact (13) capable of cooperating with the output ends (11) is arranged on the adjusting rod (12), and a positioning assembly capable of driving the second contact (13) to cooperate with the output ends (11) is connected to the second contact (13).

5. The home energy storage lithium battery heating film according to claim 4, characterized in that: The positioning assembly comprises a groove in the bottom end port of the adjusting rod (12), the second contact (13) is slidably connected in the groove, a limiting groove (14) is connected to the inner side of the connecting ring (9), the limiting groove (14) is matched with the free end of the second contact (13), and a spring (15) is connected between the second contact (13) and the groove.

6. The home energy storage lithium battery heating film according to claim 5, characterized in that: The free end of the second contact (13) is in a V-shaped structure or a hemispherical structure.

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