A mounting device for blade battery cells

Abstract

This utility model discloses a fixing device for a blade battery cell, including a lower rectangular frame. Multiple supporting strips are fixedly connected to the inner wall of the lower rectangular frame, and multiple heat dissipation strips are fixedly connected to both sides of each supporting strip. An upper rectangular frame is disposed above the lower rectangular frame, and multiple upper clamping crossbars are fixedly connected to the inner wall of the upper rectangular frame. A fixing component connects the lower and upper rectangular frames. In this utility model, rotating the threaded sleeve causes it to move on the outer surface of the first fixing post and threadedly connect with the second fixing post. At this time, the lower and upper rectangular frames are fixed. The multiple upper clamping crossbars press against the top of the blade battery cell, preventing the battery cell from loosening, rubbing, or deforming due to vibration, bumps, or collisions during use.

Description

Technical Field

[0001] This utility model relates to the field of blade battery technology, and in particular to a fixing device for blade battery cells. Background Technology

[0002] The blade battery is essentially a lithium iron phosphate battery. It differs from the traditional cylindrical cell in that it becomes a long, thin, blade-shaped cell, hence the name "blade battery." Compared to traditional cylindrical cells, which create excessive gaps between cells when stacked, the flat blade battery makes full use of the space within the battery module.

[0003] As new energy technologies are constantly being updated and iterated, blade cells, through structural innovation, can bypass the "module" and be directly integrated into the battery pack, which improves the volume utilization rate of the battery pack and also greatly increases the energy density. However, in the existing technology, blade cells lack an effective fixing structure. During the use of the battery system, the cells may become loose, rubbed, or deformed due to vibration, bumps, or collisions. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for fixing blade batteries.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fixing device for a blade battery cell, comprising a lower rectangular frame, wherein multiple supporting strips are fixedly connected to the inner wall of the lower rectangular frame, and multiple heat dissipation strips are fixedly connected to both sides of each supporting strip; an upper rectangular frame is provided above the lower rectangular frame, and multiple upper pressing crossbars are fixedly connected to the inner wall of the upper rectangular frame; a fixing component is connected between the lower rectangular frame and the upper rectangular frame; end sealing plates are provided on both sides of the lower rectangular frame, and multiple electrode through holes are provided through the side walls of the end sealing plates; an isolation component is provided at each electrode through hole; the bottom of the end sealing plate is engaged with the lower rectangular frame, and the top of the end sealing plate is engaged with the upper rectangular frame.

[0006] As a further description of the above technical solution:

[0007] The fixing component includes a first fixing post and a second fixing post. The first fixing post is fixedly connected to the upper surface of the lower rectangular frame, and the second fixing post is fixedly connected to the lower surface of the upper rectangular frame. A threaded sleeve is threadedly connected between the first fixing post and the second fixing post.

[0008] As a further description of the above technical solution:

[0009] The bottom end of the second fixing column is fixedly connected to a positioning column, and the top end of the first fixing column is provided with a positioning groove, and the positioning column is inserted into the positioning groove.

[0010] As a further description of the above technical solution:

[0011] The isolation assembly includes a fixed ring fixedly connected to the side wall of the end cap plate, a movable ring slidably connected inside the fixed ring, a return spring fixedly connected to the inner wall of the fixed ring, and the other end of the return spring fixedly connected to the movable ring.

[0012] As a further description of the above technical solution:

[0013] The sidewall of the lower rectangular frame is provided with a plurality of first slots, and the bottom of the end plate is fixedly connected with a plurality of first inserts, the first inserts being snapped into the corresponding first slots.

[0014] As a further description of the above technical solution:

[0015] The lower surface of the upper rectangular frame is provided with a plurality of second slots, and the top of the end cap is fixedly connected with a plurality of second blocks, the second blocks being embedded in the corresponding second slots.

[0016] As a further description of the above technical solution:

[0017] Multiple heat dissipation holes are provided through the surface of the supporting strip, and the heat dissipation strip extends to the bottom of the supporting strip.

[0018] This utility model has the following beneficial effects:

[0019] 1. Compared with the prior art, the fixing device of this blade battery cell places the two end sealing plates on both sides of the lower rectangular frame, so that the first insert is engaged in the corresponding first groove. Then, the upper rectangular frame is aligned with the lower rectangular frame, so that the second insert is embedded in the corresponding second groove. At this time, the positioning post is also inserted into the positioning groove. Then, the threaded sleeve is rotated, so that the threaded sleeve moves on the outer surface of the first fixing post and is threadedly connected to the second fixing post. At this time, the fixing of the lower rectangular frame and the upper rectangular frame is completed. At this time, multiple upper clamping crossbars press on the top of the blade battery cell to prevent the battery cell from loosening, rubbing or deforming due to vibration, bumps or collisions during the use of the battery system.

[0020] 2. Compared with the existing technology, the fixing device of this blade battery cell presses the movable ring into the fixed ring to expose the terminal post, which facilitates wiring. After the wiring is completed, the movable ring is released, which can isolate the terminal post wiring point and avoid mutual interference. Attached Figure Description

[0021] Figure 1 This is a first-view perspective perspective view of a blade battery cell fixing device proposed in this utility model.

[0022] Figure 2 This is a second-view perspective perspective view of a blade battery cell fixing device proposed in this utility model;

[0023] Figure 3 This is a top view of a blade battery cell fixing device proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the end sealing plate of a blade battery cell fixing device proposed in this utility model;

[0025] Figure 5 This is a cross-sectional view of the first fixing post of a blade battery cell fixing device proposed in this utility model.

[0026] Legend:

[0027] 1. Lower rectangular frame; 2. Supporting strip; 3. Heat dissipation hole; 4. Heat dissipation strip; 5. End sealing plate; 6. Through hole for pole post; 7. Fixing ring; 8. Movable ring; 9. First groove; 10. First insert; 11. Second insert; 12. Upper rectangular frame; 13. Upper clamping crossbar; 14. First fixing post; 15. Positioning groove; 16. Second fixing post; 17. Positioning post; 18. Threaded sleeve. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1 to 5This utility model provides a fixing device for a blade battery cell, comprising a lower rectangular frame 1, with multiple supporting strips 2 fixedly connected to the inner wall of the lower rectangular frame 1. Multiple heat dissipation strips 4 are fixedly connected to both sides of each supporting strip 2. Multiple heat dissipation holes 3 are formed through the surface of the supporting strips 2, and the heat dissipation strips 4 extend to the bottom of the supporting strips 2. Through the cooperation of the heat dissipation holes 3 and the heat dissipation strips 4, the blade battery cell can be effectively cooled, improving heat conduction efficiency and preventing localized overheating. An upper rectangular frame 12 is provided above the lower rectangular frame 1, and the inner wall of the upper rectangular frame 12 is fixedly connected to... Multiple upper clamping crossbars 13 are connected. A fixing component is connected between the lower rectangular frame 1 and the upper rectangular frame 12. The fixing component includes a first fixing post 14 and a second fixing post 16. The first fixing post 14 is fixedly connected to the upper surface of the lower rectangular frame 1, and the second fixing post 16 is fixedly connected to the lower surface of the upper rectangular frame 12. A threaded sleeve 18 is threadedly connected between the first fixing post 14 and the second fixing post 16. A positioning post 17 is fixedly connected to the bottom end of the second fixing post 16. A positioning groove 15 is opened at the top end of the first fixing post 14, and the positioning post 17 is inserted into the positioning groove 15.

[0030] Both sides of the lower rectangular frame 1 are provided with end sealing plates 5. Multiple pole post through holes 6 are opened through the side wall of the end sealing plate 5. An isolation component is provided at each pole post through hole 6. The isolation component includes a fixed ring 7 fixedly connected to the side wall of the end sealing plate 5. A movable ring 8 is slidably connected inside the fixed ring 7. A return spring is fixedly connected to the inner wall of the fixed ring 7. The other end of the return spring is fixedly connected to the movable ring 8.

[0031] The bottom of the end sealing plate 5 is snapped into the lower rectangular frame 1, and the top of the end sealing plate 5 is snapped into the upper rectangular frame 12. The side wall of the lower rectangular frame 1 has multiple first slots 9. The bottom of the end sealing plate 5 is fixedly connected to multiple first inserts 10, and the first inserts 10 are snapped into the corresponding first slots 9. The lower surface of the upper rectangular frame 12 has multiple second slots, and the top of the end sealing plate 5 is fixedly connected to multiple second inserts 11, and the second inserts 11 are embedded in the corresponding second slots.

[0032] Working principle:

[0033] In use, place the blade battery cell on the support strip 2, with both sides of the blade battery cell abutting against the heat sink strips 4 on both sides. Then, place the two end sealing plates 5 on both sides of the lower rectangular frame 1, so that the first insert 10 is snapped into the corresponding first groove 9. Then, align the upper rectangular frame 12 with the lower rectangular frame 1, so that the second insert 11 is embedded in the corresponding second groove. At this time, the positioning post 17 will also be inserted into the positioning groove 15. Then, rotate the threaded sleeve 18 so that the threaded sleeve 18 moves on the outer surface of the first fixing post 14 and is threadedly connected to the second fixing post 16. At this time, the lower rectangular frame 1 and the upper rectangular frame 12 are fixed. At this time, multiple upper clamping crossbars 13 press on the top of the blade battery cell. The uniform fixing pressure can reduce the difference in internal resistance of the battery cell and improve the cycle life.

[0034] When wiring the blade battery terminals, the movable ring 8 can be pressed into the fixed ring 7 to expose the terminals, making wiring easier. After wiring is complete, the movable ring 8 can be released to isolate the terminal wiring points and prevent mutual interference.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixing device of a blade cell, comprising a lower rectangular frame (1), characterized in that: The inner wall of the lower rectangular frame (1) is fixedly connected with multiple supporting strips (2), and multiple heat dissipation strips (4) are fixedly connected to both sides of each supporting strip (2). An upper rectangular frame (12) is provided above the lower rectangular frame (1), and multiple upper pressing crossbars (13) are fixedly connected to the inner wall of the upper rectangular frame (12). A fixing component is connected between the lower rectangular frame (1) and the upper rectangular frame (12). End sealing plates (5) are provided on both sides of the lower rectangular frame (1). Multiple pole through holes (6) are opened through the side wall of the end sealing plate (5). An isolation component is provided at each pole through hole (6). The bottom of the end sealing plate (5) is snapped into the lower rectangular frame (1), and the top of the end sealing plate (5) is snapped into the upper rectangular frame (12).

2. The blade cell securing device of claim 1, wherein: The fixing component includes a first fixing post (14) and a second fixing post (16). The first fixing post (14) is fixedly connected to the upper surface of the lower rectangular frame (1), and the second fixing post (16) is fixedly connected to the lower surface of the upper rectangular frame (12). A threaded sleeve (18) is threadedly connected between the first fixing post (14) and the second fixing post (16).

3. A blade cell securing device according to claim 2, wherein: The bottom end of the second fixed column (16) is fixedly connected to a positioning column (17), and the top end of the first fixed column (14) is provided with a positioning groove (15), and the positioning column (17) is inserted into the positioning groove (15).

4. The blade cell securing device of claim 1, wherein: The isolation assembly includes a fixed ring (7) fixedly connected to the side wall of the end sealing plate (5), a movable ring (8) slidably connected inside the fixed ring (7), a return spring fixedly connected to the inner wall of the fixed ring (7), and the other end of the return spring fixedly connected to the movable ring (8).

5. The blade cell securing device of claim 1, wherein: The lower rectangular frame (1) has multiple first slots (9) on its side wall, and the bottom of the end plate (5) is fixedly connected to multiple first inserts (10), which are snapped into the corresponding first slots (9).

6. The blade cell securing device of claim 1, wherein: The lower surface of the upper rectangular frame (12) is provided with a plurality of second slots, and the top of the end sealing plate (5) is fixedly connected with a plurality of second inserts (11), and the second inserts (11) are embedded in the corresponding second slots.

7. The fixing device for a blade battery cell according to claim 1, characterized in that: The surface of the supporting strip (2) is provided with multiple heat dissipation holes (3), and the heat dissipation strip (4) extends to the bottom of the supporting strip (2).

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