Lithium battery protection plate

Abstract

The lithium battery protection plate comprises a protection plate body and a plurality of first mounting blocks mounted on a battery, the protection plate body is placed at the tops of the first mounting blocks, the tops of the first mounting blocks are fixedly connected with inserting rods, a plurality of mounting holes are formed in the upper surface of the protection plate body, and the inserting rods are fixedly connected with the inserting rods. A plurality of inserting rods are fixedly connected to the upper surface of the protection plate body, the plurality of inserting rods penetrate through the plurality of mounting holes respectively, a first groove is formed in one side of each inserting rod, a plurality of guide frames are fixedly connected to the upper surface of the protection plate body, sliding frames are slidably connected to the outer sides of every two adjacent guide frames, and the sliding frames are connected with the first grooves in a clamped mode. Compared with the prior art, the protection plate does not need to be fixed through screws, time is saved, the installation efficiency of the protection plate is improved, a worker can align the inserting holes and the threaded holes conveniently, and the installation efficiency of the protection plate is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of protection boards, in particular to a lithium battery protection board. Background Art

[0002] The lithium battery protection board is a charge and discharge protection board for the series-connected lithium battery pack. When fully charged, it can ensure that the voltage difference between each single cell is less than the set value (generally ±20mV), thereby achieving equal charging of each single cell in the battery pack and effectively improving the charging effect under the series charging mode.

[0003] After searching, a Chinese patent with publication number CN104158156B discloses a lithium battery protection board, including a new lithium battery protection board and an interface control module. After testing, the new lithium battery protection board and the interface control module successfully protect the FET from the tube burning phenomenon caused by excessive power consumption accumulation, which can avoid safety accidents such as fire and / or explosion. However, the following defects still exist: the protection board is generally installed by multiple bolts during installation, and multiple bolt holes need to be aligned during installation, which consumes a lot of time and reduces installation efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a lithium battery protection board.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A lithium battery protection plate comprises a protection plate body and a plurality of first mounting blocks mounted on the battery, the protection plate body being placed on top of the plurality of first mounting blocks, the tops of the plurality of first mounting blocks being fixedly connected with insertion rods, the upper surface of the protection plate body being provided with a plurality of mounting holes, the plurality of insertion rods respectively passing through the plurality of mounting holes, a first groove being provided on one side of the plurality of insertion rods, the upper surface of the protection plate body being fixedly connected with a plurality of guide frames, the outer sides of two adjacent guide frames being slidably connected with slides, and the slides being engaged with the first grooves.

[0007] As a further solution of the present invention, springs are fixedly connected to the plurality of guide frames, and the springs are fixed to the slide frame.

[0008] As a further solution of the present invention, it also includes multiple second mounting blocks installed on the battery, the protective plate body is placed on the top of multiple second mounting blocks, wherein the tops of two of the second mounting blocks are fixedly connected with a bracket, and the protective plate body is clamped with the bracket, and the other two second mounting blocks are fixedly connected with a rotating shaft, the circumferential outer wall of the rotating shaft is rotatably connected with a rotating frame, and the rotating frame is clamped with the protective plate body, and two avoidance grooves are provided at the bottom of the rotating frame, and the circumferential outer wall of the rotating shaft is located in the avoidance groove and is sleeved with a torsion spring, and the two ends of the torsion spring are respectively fixed to the rotating shaft and the rotating frame, and threaded holes are provided on the tops of multiple second mounting blocks.

[0009] As a further solution of the present invention, two second grooves are provided on the upper surface of the protection plate body, and the card holder is located in the second grooves.

[0010] As a further solution of the present invention, the two second grooves are located on the same side.

[0011] As a further solution of the present invention, a plurality of insertion holes are provided on the upper surface of the protection plate body, and the threaded holes are aligned with the insertion holes on the upper surface of the protection plate body for installing screws.

[0012] The beneficial effects of the utility model are:

[0013] 1. By using the slide and the first groove in conjunction with each other, the insertion rod on the first mounting block is passed through the mounting hole, and then the slide is inserted into the first groove to fix the protective plate. There is no need to use screws to fix the protective plate, which saves time and improves the efficiency of the protective plate installation.

[0014] 2. Through the coordinated use of the clamping frame and the rotating frame, the protection plate is positioned by the clamping frame and the rotating frame, which makes it convenient for the staff to align the jack and the threaded hole, further improving the installation efficiency of the protection plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a lithium battery protection board embodiment 1 proposed by the present invention;

[0016] Figure 2 This is a schematic diagram of the slide assembly structure of a lithium battery protection board embodiment 1 proposed by the present invention;

[0017] Figure 3 This is a schematic diagram of the assembly structure of a rotating frame of a lithium battery protection board embodiment 2 proposed by the present invention;

[0018] Figure 4 This is a schematic diagram of the torsion spring assembly structure of a lithium battery protection board embodiment 2 proposed by the present invention.

[0019] In the figure: 1. Protective plate body; 2. First mounting block; 3. Slide; 4. Guide frame; 5. First groove; 6. Insert rod; 7. Spring; 8. Mounting hole; 9. Rotating shaft; 10. Rotating frame; 11. Clamping frame; 12. Torsion spring; 13. Threaded hole; 14. Second groove; 15. Second mounting block. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] Reference Figure 1-Figure 2 , a lithium battery protection board, comprising a protection board body 1 and multiple first mounting blocks 2 mounted on the battery, the protection board body 1 is placed on the top of the multiple first mounting blocks 2, and the tops of the multiple first mounting blocks 2 are welded with insertion rods 6, the upper surface of the protection board body 1 is provided with multiple mounting holes 8, and the multiple insertion rods 6 pass through the multiple mounting holes 8 respectively, and one side of the multiple insertion rods 6 is provided with a first groove 5. The upper surface of the protection board body 1 is fixed with multiple guide frames 4 by bolts, and the outer sides of two adjacent guide frames 4 are slidably connected with slides 3, and the slides 3 are clamped with the first grooves 5. The protection board body 1 is placed on the first mounting block 2, and the insertion rods 6 on the first mounting block 2 pass through the mounting holes 8 on the protection board body 1, and then the slide 3 is clamped into the first grooves 5 on the insertion rods 6, so that the protection board body 1 is fixed. There is no need to use screws to fix the protection board, which saves time.

[0022] In the present invention, springs 7 are welded inside the multiple guide frames 4, and the springs 7 are fixed to the slide 3. Under the action of the springs 7, the slide 3 will not move easily, further improving the stability of the protection plate installation.

[0023] The working principle of this embodiment: when in use, the protective plate body 1 is placed on the first mounting block 2, and the insertion rod 6 on the first mounting block 2 is passed through the mounting hole 8 on the protective plate body 1, and then the slide 3 is inserted into the first groove 5 on the insertion rod 6, thereby fixing the protective plate body 1. There is no need to use screws to fix the protective plate, which saves time and improves the efficiency of the protective plate installation. At the same time, under the action of the spring 7, the slide 3 will not move easily, further improving the stability of the protective plate installation.

Claims

1. A lithium battery protection board, comprising a protection board body (1) and a plurality of first mounting blocks (2) mounted on the battery, characterized in that: The protection plate body (1) is placed on the top of the plurality of first mounting blocks (2), and the tops of the plurality of first mounting blocks (2) are fixedly connected with an insertion rod (6). The upper surface of the protection plate body (1) is provided with a plurality of mounting holes (8), and the plurality of insertion rods (6) respectively pass through the plurality of mounting holes (8). One side of the plurality of insertion rods (6) is provided with a first groove (5). The upper surface of the protection plate body (1) is fixedly connected with a plurality of guide frames (4), and the outer sides of two adjacent guide frames (4) are slidably connected with a slide (3), and the slide (3) is engaged with the first groove (5).

2. A lithium battery protection board according to claim 1, characterized in that: A spring (7) is fixedly connected to each of the plurality of guide frames (4), and the spring (7) is fixed to the slide frame (3).

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