Storage battery with electric heating film

Abstract

The utility model discloses a storage battery with an electric heating film. The storage battery comprises a shell, the battery body is arranged in the shell, the battery body comprises a plurality of battery monomers, the plurality of battery monomers are arranged in a matrix, and the battery monomers are electrically connected in series; the number of the electric heating films is multiple, the electric heating films are arranged between every two adjacent battery monomers, and the upper part of each electric heating film is provided with two wiring parts which are bent towards the horizontal direction; the number of the binding posts is two, and the two binding posts are arranged at the top of the battery body; and the number of the busbars is two, the two busbars are arranged at the top of the battery body, are electrically connected with the binding posts and are arranged along the wiring parts of the electric heating films, and the two wiring parts of each electric heating film are respectively attached to the two busbars to form electric connection.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a storage battery with an electric heating film. Background Art

[0002] On-board batteries or electric vehicles usually include battery cells arranged in series in a matrix. It is well known that when the battery cells of the battery are used in a low-temperature environment, problems such as low output power and low effective utilization rate of electric energy will occur. For this reason, batteries used in such an environment usually have a heating film arranged between every two adjacent battery cells. The heating film is usually configured as an electric heating film, and the electric heating film usually converts the electric energy provided by the battery into heat energy to heat the battery cells.

[0003] In the prior art, a single-strand or multiple-strand wire is used to electrically connect the electric heating film to the terminal of the battery so that the battery can power its own electric heating film. However, a typical defect of using a single-strand or multiple-strand wire to power the electric heating film is that the wires that provide electrical connections for many electric heating films must be led out from the contact terminal, which leads to a messy arrangement of the wires and reduces the assembly and maintenance efficiency of the battery. Utility Model Content

[0004] In view of the above technical problems existing in the prior art, an embodiment of the utility model provides a battery with an electric heating film.

[0005] In order to solve the above technical problems, the technical solution adopted in the embodiment of the utility model is:

[0006] A storage battery with an electric heating film, comprising:

[0007] case;

[0008] A battery body, which is installed in the housing, the battery body includes a plurality of battery cells, the plurality of battery cells are arranged in a matrix, and the battery cells are electrically connected in series;

[0009] The electric heating film comprises a plurality of electric heating films, each of which is arranged between two adjacent battery cells, and the upper portion of the electric heating film has two connecting portions bent in a horizontal direction;

[0010] The terminal post comprises two terminals, and the two terminals are arranged on the top of the battery body;

[0011] The busbars include two busbars, which are arranged on the top of the battery body and electrically connected to the terminal posts, and are arranged along the wiring parts of the electric heating film. The two wiring parts of each electric heating film are electrically connected by being attached to the two busbars.

[0012] Preferably, a sheet electrode is attached and fixed to the wiring portion, and the sheet electrode is attached to the busbar.

[0013] Preferably, the two connection parts of the electric heating film are arranged at intervals; an avoidance groove is opened in the area of ​​the busbar corresponding to the connection part, and the connection part passes through the busbar so that the sheet electrode is attached to the upper surface of the busbar.

[0014] Preferably, the two connection parts of the electric heating film are arranged adjacent to each other, the two bus bars are arranged adjacent to each other, and the two connection parts of the electric heating film are correspondingly located below the two bus bars; the sheet electrode is attached and fixed to the lower surface of the bus bar.

[0015] Preferably, the sheet-shaped electrode is fixed to the wiring portion by ultrasonic welding, soldering, or laser welding.

[0016] Preferably, the two bus bars are electrically connected to two terminals of the same battery body respectively.

[0017] Preferably, the two bus bars are electrically connected to the terminals on the two battery bodies respectively.

[0018] Compared with the prior art, the battery with electric heating film disclosed in the utility model has the following beneficial effects:

[0019] The storage battery provided by the utility model utilizes a bus bar to electrically connect the connection part of the electric heating film to supply power to the electric heating film. Compared with the method of connecting all the electric heating films with a single strand or multiple strands of wires, the assembly efficiency and maintenance efficiency of the storage battery are higher.

[0020] The overview of various implementations or examples of the technology described in this utility model is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the embodiments of the utility model. When appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present device or method.

[0022] Figure 1 A three-dimensional appearance view of a battery with an electric heating film provided in an embodiment of the utility model.

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the electric heating film in the storage battery with the electric heating film provided in the embodiment of the utility model.

[0024] Figure 3 This is a stereoscopic view of the electric heating film and the busbar in a first assembly relationship from one perspective.

[0025] Figure 4 This is a stereoscopic view from another perspective of the electric heating film and the busbar in the first assembly relationship.

[0026] Figure 5 This is a stereoscopic view from one perspective of the second assembly relationship between the electric heating film and the busbar.

[0027] Figure 6 This is a stereoscopic view from another perspective of the second assembly relationship between the electric heating film and the busbar.

[0028] Reference numerals:

[0029] 100 - battery body; 10 - battery cell; 20 - electric heating film; 21 - connection portion; 22 - sheet electrode; 30 - bus bar; 31 - avoidance groove; 40 - terminal; 200 - shell. DETAILED DESCRIPTION

[0030] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0032] The embodiment of the utility model discloses a storage battery, which is used as a vehicle-mounted battery or a power source of an electric vehicle, but is not limited to this application.

[0033] like Figures 1 to 6As shown, the battery includes a housing 200 , a battery body 100 , an electric heating film 20 , a terminal 40 and a bus bar 30 .

[0034] like Figure 1 As shown, the shell 200 is configured as a rectangular structure, and the battery body 100 is arranged in the shell 200, so that the shell 200 protects the battery body 100; the battery body 100 includes a plurality of battery cells 10, each battery cell 10 is a flat rectangular structure, and the plurality of battery cells 10 are arranged in sequence along the length direction of the shell 200, and the plurality of battery cells 10 are electrically connected in series, so that the output current and voltage of the battery meet the requirements.

[0035] like Figure 2 As shown, an electric heating film 20 is arranged between each two adjacent battery cells 10, and the electric heating film 20 has an electric heating metal foil, so that electric energy can be converted into heat energy for heating the battery cells 10. For this purpose, two wiring parts 21 are formed on the upper part of the electric heating film 20, and the two wiring parts 21 are formed into a horizontal state by horizontal bending. A sheet electrode 22 is fixed on each wiring part 21, and the sheet electrode 22 is electrically connected to the wiring part 21 by any one of ultrasonic welding, soldering, and laser welding. The wiring part 21 and the sheet electrode 22 extend from the two battery cells 10 and are located on the top of the battery body 100.

[0036] like Figure 1 Combined with Figure 3 and Figure 5 As shown, the busbars 30 include two, and the two busbars 30 are arranged on the top of the battery body 100; the two busbars 30 are arranged along the two wiring parts 21 of the electric heating film 20 respectively, and the sheet electrodes 22 of one of the wiring parts 21 of all the electric heating films 20 are attached and fixed on one of the busbars 30, thereby forming an electrical connection with the busbar 30, and the sheet electrodes 22 of the other wiring part 21 of all the electric heating films 20 are attached and fixed on the other busbar 30, thereby forming an electrical connection with the busbar 30; the two busbars 30 are also electrically connected to the two terminal posts 40 of the battery body 100 respectively, so that the battery body 100 supplies power to all the electric heating films 20 through the busbar 30.

[0037] The utility model provides two assembly relationships between the busbar 30 and the sheet electrode 22 of the electric heating film 20 .

[0038] The first assembly relationship:

[0039] like Figure 3 and Figure 4As shown, the distance between the two connection parts 21 of each electric heating film 20 is relatively large, and the distance between the two busbars 30 and the two connection parts 21 matches. A avoidance groove 31 is provided at the position corresponding to each busbar 30 and the electric heating film 20, and the connection part 21 of the electric heating film 20 passes through the avoidance groove 31 and is located above the busbar 30. In this way, the sheet electrode 22 is attached and fixed to the upper surface of the busbar 30 by welding. In the first assembly relationship, the two busbars 30 are respectively electrically connected to the two terminals 40 of the battery body 100 in the same battery.

[0040] The second assembly relationship:

[0041] like Figure 5 and Figure 6 As shown, the distance between the two connection parts 21 of each electric heating film 20 is small, and the distance between the two busbars 30 and the two connection parts 21 is matched and also has a small distance. The two busbars 30 correspond to the two connection parts 21 of all the electric heating films 20 and are located above the connection parts 21. In this way, the sheet electrode 22 is attached and fixed to the lower surface of the busbar 30 by welding. In the second assembly relationship, the two busbars 30 can be electrically connected to the two terminal posts 40 of the battery body 100 of the same battery, or they can be electrically connected to the terminal posts 40 of the battery body 100 of two batteries respectively.

[0042] The advantages of the storage battery with the electric heating film 20 provided by the utility model are:

[0043] The battery provided by the utility model utilizes the bus bar 30 to be electrically connected to the connection part 21 of the electric heating film 20 for supplying power to the electric heating film 20. Compared with the method of connecting all the electric heating films 20 with single or multiple wires, the assembly efficiency and maintenance efficiency of the battery are higher.

[0044] In addition, although exemplary embodiments have been described in the present invention, the scope includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., various embodiments intersecting schemes), adaptations or changes. The elements in the claims will be interpreted broadly based on the language adopted in the claims, and are not limited to the examples described in this specification or during the implementation of this application, and the examples will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered as examples only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0045] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. For example, a person of ordinary skill in the art can use other embodiments when reading the above description. In addition, in the above-mentioned specific embodiments, various features can be grouped together to simplify the utility model. This should not be interpreted as an intention that a disclosed feature that is not required to be protected is necessary for any claim. On the contrary, the subject matter of the utility model may be less than all the features of a specific disclosed embodiment. Thus, the following claims are incorporated into the specific embodiments as examples or embodiments, wherein each claim is independently used as a separate embodiment, and it is considered that these embodiments can be combined with each other in various combinations or arrangements. The scope of the utility model should be determined with reference to the attached claims and the full scope of equivalent forms granted by these claims.

[0046] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A battery with an electric heating film, characterized in that: include: case; A battery body, which is installed in the housing, the battery body includes a plurality of battery cells, the plurality of battery cells are arranged in a matrix, and the battery cells are electrically connected in series; The electric heating film comprises a plurality of electric heating films, each of which is arranged between two adjacent battery cells, and the upper portion of the electric heating film has two connecting portions bent in a horizontal direction; The terminal post comprises two terminals, and the two terminals are arranged on the top of the battery body; The busbars include two busbars, which are arranged on the top of the battery body and electrically connected to the terminal posts, and are arranged along the wiring parts of the electric heating film. The two wiring parts of each electric heating film are electrically connected by being attached to the two busbars.

2. The battery with an electric heating film according to claim 1, characterized in that: A sheet electrode is attached and fixed on the wiring portion, and the sheet electrode is attached to the bus bar.

3. The battery with an electric heating film according to claim 2, characterized in that: The two connection parts of the electric heating film are arranged at intervals; a avoidance groove is opened in the area of ​​the busbar corresponding to the connection part, and the connection part passes through the busbar so that the sheet electrode is attached to the upper surface of the busbar.

4. The battery with an electric heating film according to claim 2, characterized in that: The two connection parts of the electric heating film are arranged adjacent to each other, the two bus bars are arranged adjacent to each other, and the two connection parts of the electric heating film are correspondingly located below the two bus bars; the sheet electrode is attached and fixed to the lower surface of the bus bar.

5. The battery with an electric heating film according to claim 2, characterized in that: The sheet electrode is fixed on the wiring portion by ultrasonic welding, soldering, or laser welding.

6. The battery with an electric heating film according to claim 3, characterized in that: The two bus bars are electrically connected to two terminals of the same battery body respectively.

7. The battery with an electric heating film according to claim 4, characterized in that: The two bus bars are electrically connected to the two terminals on the battery bodies respectively.

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