Battery cell stacking assembly for battery pack

Abstract

The utility model provides a battery cell stacking assembly for a battery pack, which comprises two end plates, a plurality of bumps connected to the left and right sides of the surfaces of the two end plates, steel belts arranged between the two end plates and the plurality of bumps, a groove arranged at the center of the side of each end plate, a steel plate arranged inside the groove, and a plurality of connecting rods arranged between the steel plates and the end plates. The multiple protruding blocks act on limiting of the steel belt, and a threaded bolt is arranged between the steel plate and the end plate. According to the battery cell stacking assembly for the battery pack, provided by the utility model, the steel plate is arranged between the two end plates with the grooves, so that the battery pack can be secondarily fixed when the battery pack exceeds a pre-stress range.

Description

Technical Field

[0001] The utility model relates to the field of new energy vehicles, and in particular to a battery cell stacking assembly for a battery pack. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures. New energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc.

[0003] Currently, new energy vehicles are all driven by electricity. However, current electric-driven vehicles are driven by a battery pack composed of multiple batteries. In order to maintain the pre-pressure of the module evenly, this end plate is provided with this boss on the upper and lower sides. The lower boss is opposite to the upper boss. The protruding part of the lower boss is shortened to facilitate the insertion of the steel belt. After the overall installation of the steel belt is completed and the pressure is relieved, the battery cell will rebound partially, so the shortened boss below will still play a role in fixing the steel belt. The steel belt will not fall off due to the shortening of the boss. However, when multiple batteries are combined into a battery pack, some pressures that exceed the pressure range that the steel belt can withstand cannot be fixed using the steel belt.

[0004] Therefore, it is necessary to provide a battery cell stacking assembly for a battery pack to solve the above technical problems. Utility Model Content

[0005] The utility model provides a battery cell stacking assembly for a battery pack, which solves the problem that when a plurality of batteries are combined into a battery pack, a steel belt cannot be used for fixing when some pressures exceed the pressure range that the steel belt can withstand.

[0006] In order to solve the above technical problems, the utility model provides a battery cell stacking assembly for a battery pack, comprising:

[0007] Two end plates, both sides of the left and right sides of the surfaces of the two end plates are connected with multiple protrusions, a steel belt is arranged between the two end plates and the multiple protrusions, a groove is opened at the center position of the side of the end plate, and a steel plate is arranged inside the groove.

[0008] Preferably, the plurality of protrusions act to limit the position of the steel belt.

[0009] Preferably, a threaded bolt is provided between the steel plate and the end plate.

[0010] Preferably, the groove acts on the installation of the steel plate.

[0011] Preferably, an adjustment component is provided on the surface of the steel plate, and the adjustment component includes a sliding cavity, and adjustment plates are provided on both sides of the sliding cavity.

[0012] Preferably, one end of the adjustment plate is connected to a connecting plate, and both ends of the connecting plate are connected to sliders.

[0013] Preferably, sliding grooves matching the two sliding blocks are provided on both sides of the inner wall of the sliding cavity.

[0014] Compared with the related art, the battery cell stacking assembly for a battery pack provided by the utility model has the following beneficial effects:

[0015] The utility model provides a battery cell stacking assembly for a battery pack. A steel plate is arranged between two end plates with grooves, which can play a secondary fixing role for the battery pack when the battery pack exceeds a prestress range. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a first embodiment of a battery cell stacking assembly for a battery pack provided by the utility model;

[0017] Figure 2 A schematic structural diagram of a second embodiment of a battery cell stacking assembly for a battery pack provided by the utility model;

[0018] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown.

[0019] Numbers in the figure: 1, end plate, 2, protrusion, 3, steel belt, 4, groove, 5, steel plate, 6, threaded bolt, 7, adjustment assembly, 71, sliding cavity, 72, adjustment plate, 73, connecting plate, 74, slider, 75, slide groove. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0021] First embodiment

[0022] Please refer to Figure 1 ,in, Figure 1 This is a schematic structural diagram of a first embodiment of a battery cell stacking assembly for a battery pack provided by the utility model. A battery cell stacking assembly for a battery pack includes:

[0023] Two end plates 1, both sides of the left and right sides of the surface of the two end plates 1 are connected with multiple protrusions 2, a steel belt 3 is arranged between the two end plates 1 and the multiple protrusions 2, a groove 4 is opened at the center position of the side of the end plate 1, and a steel plate 5 is arranged inside the groove 4.

[0024] The steel strip 3 can fix the battery cell combination within a specified spacing, and the steel plate 5 can fix the battery pack beyond the spacing between the two end plates 1.

[0025] The plurality of protrusions 2 act on the position limiting of the steel belt 3 .

[0026] A threaded bolt 6 is provided between the steel plate 5 and the end plate 1 .

[0027] The groove 4 is used for installing the steel plate 5 .

[0028] The working principle of a battery cell stacking assembly for a battery pack provided by the utility model is as follows:

[0029] When in use, firstly, a plurality of battery cells are installed between the two end plates 1 . After a specified number of battery cells are installed, the steel belt 3 is sleeved between the plurality of protrusions 2 on the surfaces of the two end plates 1 .

[0030] When the battery core exceeds the distance of the steel belt 3 , the steel plate 5 is placed inside the groove 4 between the two end plates 1 , and then the steel plate 5 is connected to the two end plates 1 using the threaded bolts 6 .

[0031] Compared with the related art, the battery cell stacking assembly for a battery pack provided by the utility model has the following beneficial effects:

[0032] The utility model provides a battery cell stacking assembly for a battery pack. A steel plate 5 is arranged between two end plates 1 with grooves 4, which can play a secondary fixing role for the battery pack when the battery pack exceeds the prestress range.

[0033] Second embodiment

[0034] Please refer to Figure 2 and Figure 3 Based on the battery cell stacking assembly for a battery pack provided in the first embodiment of the present application, the second embodiment of the present application provides another battery cell stacking assembly for a battery pack. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0035] Specifically, the difference of the cell stacking assembly for a battery pack provided in the second embodiment of the present application is that, in a cell stacking assembly for a battery pack, an adjustment assembly 7 is provided on the surface of the steel plate 5, and the adjustment assembly 7 includes a sliding cavity 71, and adjustment plates 72 are provided on both sides of the sliding cavity 71.

[0036] One end of the adjustment plate 72 is connected to a connecting plate 73 , and both ends of the connecting plate 73 are connected to sliders 74 .

[0037] The sliding cavity 71 is opened on the surface of the steel plate 5. The use of the slider 74 and the slide groove 75 can play a role of limiting when the adjustment plate 72 moves, and can also adjust the length of the adjustment plate 72 with the connecting plate 73.

[0038] Sliding grooves 75 adapted to the two sliding blocks 74 are provided on both sides of the inner wall of the sliding cavity 71 .

[0039] The working principle of a battery cell stacking assembly for a battery pack provided by the utility model is as follows:

[0040] When in use, when the steel plate 5 is installed, first one of the adjustment plates 72 is threadedly connected to the groove 4 on one of the end plates 1 through the threaded bolt 6. After one of the adjustment plates 72 is installed, the other adjustment plate 72 is moved by pulling. When the other adjustment plate 72 moves, the sliders 74 at both ends are driven by the connecting plate 73 to move inside the slide grooves 75 on both sides of the inner wall of the slide cavity 71 until the other adjustment plate 72 contacts the groove 4 on the surface of the other end plate 1. Then the threaded bolt 6 can be used to thread the other adjustment plate 72 to the other end plate 1.

[0041] Compared with the related art, the battery cell stacking assembly for a battery pack provided by the utility model has the following beneficial effects:

[0042] The utility model provides a battery cell stacking assembly for a battery pack. An adjustment assembly 7 is arranged on the surface of a steel plate 5 to adjust the length of the steel plate 5 according to the distance between two end plates 1.

[0043] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A battery cell stacking assembly for a battery pack, characterized in that: include: Two end plates, both sides of the left and right sides of the surfaces of the two end plates are connected with multiple protrusions, a steel belt is arranged between the two end plates and the multiple protrusions, a groove is opened at the center position of the side of the end plate, and a steel plate is arranged inside the groove.

2. The battery cell stacking assembly for a battery pack according to claim 1, characterized in that: The plurality of protrusions act on the position limiting of the steel belt.

3. The battery cell stacking assembly for a battery pack according to claim 1, characterized in that: A threaded bolt is arranged between the steel plate and the end plate.

4. The battery cell stacking assembly for a battery pack according to claim 1, characterized in that: The groove is used for mounting the steel plate.

5. The battery cell stacking assembly for a battery pack according to claim 1, characterized in that: An adjustment component is arranged on the surface of the steel plate. The adjustment component comprises a sliding cavity. Adjustment plates are arranged on both sides of the sliding cavity.

6. The battery cell stacking assembly for a battery pack according to claim 5, characterized in that: One end of the adjusting plate is connected to a connecting plate, and both ends of the connecting plate are connected to sliding blocks.

7. The battery cell stacking assembly for a battery pack according to claim 6, characterized in that: Sliding grooves matching the two sliding blocks are provided on both sides of the inner wall of the sliding cavity.

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