Heating integrated battery module

Abstract

The utility model discloses a heating integrated battery module. The heating integrated battery module comprises a shell wrapping the outer sides of a plurality of battery cells, the plurality of battery cells are arranged side by side, the top ends of the battery cells are provided with connecting sheets, and the connecting sheets are in tin soldering connection with the PCB; an electric heating film is arranged between every two adjacent battery cells; the top end of the electric heating film is provided with a pair of tabs, and the tabs penetrate through tab holes preset in the PCB and are connected with a bonding pad on the PCB in a tin soldering mode. According to the utility model, the electric heating film of the battery module can be conveniently and efficiently connected with the built-in PCB of the battery, the product quality and the production efficiency are improved, and meanwhile, the working modes of the battery core and the electric heating film can be flexibly controlled.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries and relates to a battery module with integrated heating. Background Art

[0002] As battery modules become increasingly modular and integrated, battery series and parallel connections, as well as battery data collection, are integrated onto PCBs. To improve the battery's low-temperature performance, heating plates are installed between cells. Different heating plate mounting and wiring methods vary significantly, and different heating plate connection methods also yield different space utilization rates. Current heating plate connectors are typically standalone, connected to the PCB via wires. This results in inefficient battery space utilization, inconvenience in connecting the heating plate connectors during production, and low production efficiency. Utility Model Content

[0003] To overcome the shortcomings of the prior art, the present invention provides a battery module with integrated heating. This design aims to improve the existing heating membrane wiring and fixing methods, enabling replacement and better utilization of PCB board space. In addition to serving as a support carrier, the PCB board integrates the heating membrane connection, battery series and parallel connection, and battery data collection on the upper surface of the PCB board to form an integrated heating battery module. This approach has positive implications for the modularization and integration of battery modules.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A battery module with integrated heating comprises a shell wrapped around the outside of a plurality of battery cells; the plurality of battery cells are arranged side by side, and a connecting piece is provided at the top of the battery cells, and the connecting piece is soldered to a PCB board; an electric heating film is provided between two adjacent battery cells; a pair of tabs are provided at the top of the electric heating film, and the tabs pass through preset tab holes on the PCB board and are soldered to the soldering pads on the PCB board.

[0006] As a further optimization, the shell includes a frame, and the left and right sides of the frame are respectively bolted to side panels, and the side panels face the sides of the battery cell; the front and rear sides of the frame are respectively bolted to end plates, and the end plates face the end faces of the battery cell; the bottom plate is connected to the bottom of the frame by bolts.

[0007] As a further optimization, the PCB board is provided with a copper busbar, which is provided with a plurality of connection holes evenly spaced apart; the connecting piece passes through the connection hole and is soldered to the copper busbar, and the copper busbar is electrically connected to a preset control circuit on the PCB board.

[0008] As a further optimization, the PCB board is provided with a collection line connection position; each of the battery cells is provided with a sensor, and the sensor is soldered to the collection line connection position through a wire; the collection line connection position is electrically connected to a preset control circuit on the PCB board.

[0009] As a further optimization, the end of the sensor wire passes through the preset jack of the acquisition line connection position and is soldered to the upper surface of the PCB board.

[0010] As a further optimization, the soldering pad is electrically connected to a preset control circuit on the PCB board for controlling the electric heating film to be powered on and heated.

[0011] The beneficial effects of the utility model are: the electric heating film of the battery module can be conveniently and efficiently connected to the PCB board of the battery, thereby improving the quality and production efficiency of the product, and at the same time, the working mode of the battery cell and the electric heating film can be flexibly controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of Example 1 of the present utility model;

[0013] Figure 2 This is a schematic top view of a PCB board according to Example 1 of the present utility model;

[0014] Figure 3 This is a schematic diagram of the electric heating film of Example 1 of the present utility model.

[0015] The correspondence between the technical features and the reference numerals in the figure is: battery cell 1; connecting piece 11; PCB board 2; solder pad 21; copper bus 22; collection line connection position 23; electric heating film 3; pole ear 31; frame 4; side plate 41; end plate 42; bottom plate 43. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] Example 1, please refer to Figure 1-3 The utility model provides a battery module with integrated heating, including a shell wrapped around the outside of a plurality of battery cells 1; the plurality of battery cells 1 are arranged side by side, and a connecting piece 11 is provided at the top of the battery cell 1, and the connecting piece 11 is soldered to the PCB board 2; an electric heating film 3 is provided between two adjacent battery cells 1; a pair of pole ears 31 are provided at the top of the electric heating film 3, and the pole ears 31 pass through the preset pole ear holes on the PCB board 2 and are soldered to the soldering pads 21 on the PCB board 2.

[0018] It can be seen that the tabs 31 of the electric heating film 3 make full use of the space on the PCB board 2, not only realizing the conductive connection between the electric heating and the PCB board 2, but also the said pad 21 is electrically connected to the preset control circuit on the said PCB board 2, which is used to control the said electric heating film 3 to be powered on for heating. To realize the integration of the heating function on the PCB board 2, the PCB board 2, in addition to serving as a supporting carrier, can integrate the connection of the heating film, the series and parallel connection of the batteries, and the battery data acquisition on the upper surface of the PCB board 2 to form a battery module with integrated heating, thereby achieving the effect of integrated heating of the battery module under low temperature conditions. In other words, the working mode can be configured as needed, and several of the battery cells 1 can be selected for series and parallel connection, and the electric heating film 3 can be flexibly selected for power on heating to meet different working scenarios.

[0019] Illustratively, the housing includes a frame 4, with side panels 41 bolted to the left and right sides of the frame 4. These side panels 41 face the sides of the battery cells 1. End panels 42 are bolted to the front and rear sides of the frame 4, facing the end faces of the battery cells 1. A bottom panel 43 is bolted to the bottom of the frame. The housing is removable, facilitating maintenance and replacement of the battery cells 1 or the electric heating film 3.

[0020] In order to conductively connect the battery cell 1 to the PCB board 2, illustratively, the PCB board 2 is provided with a copper busbar 22, and the copper busbar 22 is provided with a plurality of connection holes evenly spaced apart; the connecting piece 11 passes through the connection hole and is soldered to the copper busbar 22, and the copper busbar 22 is electrically connected to a preset control circuit on the PCB board 2.

[0021] In order to facilitate monitoring of the working status of the battery cell 1, the PCB board 2 is provided with a collection line connection position 23; each battery cell 1 is provided with a sensor, and the sensor is soldered to the collection line connection position 23 through a wire; the collection line connection position 23 is electrically connected to a preset control circuit on the PCB board 2.

[0022] In order to facilitate the soldering operation, the end of the sensor wire passes through the preset jack of the acquisition line connection position 23 and is soldered to the upper surface of the PCB board 2.

[0023] At this point, the battery cell 1, the electric heating film 3, and the sensor are all welded on the upper end of the PCB board 2. The welding operation can be performed by a welding robot, which is efficient, has good connection quality, and improves product quality.

[0024] In summary, this embodiment enables the electric heating film 3 of the battery module to be conveniently and efficiently connected to the PCB board 2 of the battery, thereby improving the quality and production efficiency of the product. At the same time, it can flexibly control the working mode of the battery cell 1 and the electric heating film 3.

Claims

1. A battery module with integrated heating, comprising a shell wrapped around the outside of a plurality of battery cells (1); the plurality of battery cells (1) are arranged side by side, a connecting piece (11) is provided at the top of the battery cells (1), and the connecting piece (11) is soldered to a PCB board (2); characterized in that: An electric heating film (3) is provided between two adjacent battery cells (1); A pair of pole ears (31) are provided at the top end of the electric heating film (3); the pole ears (31) pass through pole ear holes preset on the PCB board (2) and are connected to the soldering pads (21) on the PCB board (2) by soldering.

2. The heating-integrated battery module according to claim 1, characterized in that: The housing comprises a frame (4), the left and right sides of the frame (4) are respectively connected to side plates (41) by bolts, and the side plates (41) face the side faces of the battery core (1); the front and rear sides of the frame (4) are respectively connected to end plates (42), and the end plates (42) face the end faces of the battery core (1); and the bottom plate (43) is connected to the bottom of the frame (4) by bolts.

3. The heating-integrated battery module according to claim 2, characterized in that: The PCB board (2) is provided with a copper busbar (22), and the copper busbar (22) is provided with a plurality of connection holes evenly spaced at intervals; the connecting piece (11) passes through the connection holes and is connected to the copper busbar (22) by soldering, and the copper busbar (22) is electrically connected to a preset control circuit on the PCB board (2).

4. The heating-integrated battery module according to claim 3, characterized in that: The PCB board (2) is provided with a collection line connection position (23); each of the battery cells (1) is provided with a sensor, and the sensor is soldered to the collection line connection position (23) via a wire; the collection line connection position (23) is electrically connected to a preset control circuit on the PCB board (2).

5. The heating-integrated battery module according to claim 4, characterized in that: The end of the sensor's wire passes through a preset jack at the acquisition line connection position (23) and is soldered to the upper surface of the PCB board (2).

6. The heating-integrated battery module according to claim 1, characterized in that: The soldering pad (21) is electrically connected to a preset control circuit on the PCB board (2) and is used to control the electric heating film (3) to be electrically heated.

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