Split type lithium battery protection plate

Abstract

The utility model relates to the technical field of lithium battery protection plates, in particular to a split type lithium battery protection plate which comprises a protection plate body, a first fixing mechanism is movably connected to the front portion of the outer surface of the protection plate body in a penetrating mode, and a second fixing mechanism is movably connected to the rear portion of the outer surface of the protection plate body in a penetrating mode. The first fixing mechanism and the second fixing mechanism are the same in structure, the rear end of the protection plate body is fixedly connected with a flat cable, the rear end of the protection plate body is movably connected with a protection device, and the flat cable is located in the protection device. According to the split type lithium battery protection plate disclosed by the utility model, the first fixing mechanism is arranged, so that the protection plate body is convenient to disassemble and take down for overhaul and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery protection board technology, and in particular to a split-type lithium battery protection board. Background Technology

[0002] A split-type lithium battery protection board is a device used to protect lithium-ion batteries. It mainly consists of two parts: a signal acquisition and synthesis board and an execution board. Compared with the traditional integrated protection board, it separates the functional modules of battery detection, signal processing, and control execution. The signal acquisition and synthesis board is responsible for monitoring various parameters of the battery pack in real time, such as voltage and current, and performing signal processing and judgment. The execution board controls the charging and discharging process of the battery pack according to the instructions issued by the signal acquisition and synthesis board, realizing protection functions such as overcharge, over-discharge, and short circuit. However, most existing split-type lithium battery protection boards are fixed to the battery with adhesive, which increases the burden of disassembly and maintenance. Adhesive fixing can also affect the heat dissipation of the protection board. Moreover, the ribbon cable of the existing split-type lithium battery protection board lacks protection, and the connection between the ribbon cable and the protection board is relatively fragile, which can easily lead to the breakage of the connection. Therefore, we have introduced a split-type lithium battery protection board. Utility Model Content

[0003] The main purpose of this utility model is to provide a split lithium battery protection board, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A split-type lithium battery protection board includes a protection board body. A first fixing mechanism is movably connected to the front of the outer surface of the protection board body, and a second fixing mechanism is movably connected to the rear of the outer surface of the protection board body. The first and second fixing mechanisms have the same structure. A ribbon cable is fixedly connected to the rear end of the protection board body, and a protective device is movably connected to the rear end of the protection board body. The ribbon cable is located inside the protective device.

[0006] Preferably, the first fixing mechanism includes a connecting frame with an internal hollow structure. Elastic straps are fixedly connected to both the left and right ends of the connecting frame. The ends of the two elastic straps away from the connecting frame are respectively fixedly connected to a housing and a snap-fit ​​plate. A slot is opened in the middle of the upper end of the housing. A limit strip is movably connected to the left side of the upper end of the housing through a rotating shaft.

[0007] Preferably, the snap-fit ​​plate is adapted to the snap-fit ​​slot.

[0008] Preferably, the connecting frame is interlocked and movably connected to the protective plate body.

[0009] Preferably, the protective device includes an upper connector and a lower connector. Rubber strips are fixedly connected to the rear ends of both the upper and lower connectors. Several reinforcing ribs are fixedly connected to the ends of the two rubber strips that are far apart from each other. Both rubber strips are U-shaped structures. An adhesive layer is provided at the ends of the two upper connectors that are close to each other. Pair plugs are fixedly connected to the lower left and lower right parts of the upper connectors. The lower ends of the two pair plugs are umbrella-shaped structures.

[0010] Preferably, the lower connector has two grooves, and the two inserts are respectively inserted into and movably connected to the two grooves.

[0011] Preferably, the upper connector and the lower connector are bonded to the protective plate body by an adhesive layer, and both rubber strips are located on the outer surface of the ribbon cable.

[0012] This utility model has the following beneficial effects:

[0013] In this utility model, by setting a first fixing mechanism, the connecting frame is sleeved on the outer surface of the protection board body, two elastic straps are wrapped around the outer surface of the battery, and the snap-fit ​​plates at the ends of the two elastic straps are snapped together with the outer shell, so that the elastic straps hold the battery tightly, thereby fixing the protection board body to one side of the battery, which makes it easier to disassemble and remove the protection board body for inspection and maintenance.

[0014] In this utility model, by setting a protective device, the upper connector and the lower connector are inserted into and glued together with the protective plate body. The two plugs at the lower end of the upper connector are inserted into the two grooves opened at the upper end of the lower connector. After the connection is completed, the rubber strips at the rear end of the upper connector and the rear end of the lower connector will wrap the ribbon cable, thereby protecting the ribbon cable and preventing the connection from breaking due to excessive bending of the ribbon cable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a split-type lithium battery protection board according to the present invention;

[0016] Figure 2 This is a schematic diagram of the overall structure of the first fixing mechanism of a split lithium battery protection board according to this utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure of the protective device of the split lithium battery protection board according to this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the lower connector of a split-type lithium battery protection board according to this utility model.

[0019] In the diagram: 1. Protective plate body; 2. Fixing mechanism 1; 3. Protective device; 4. Cable; 5. Fixing mechanism 2; 21. Connecting frame; 22. Elastic strap; 23. Clip plate; 24. Slot; 25. Outer shell; 26. Limiting strip; 31. Upper connector; 32. Reinforcing rib; 33. Rubber strip; 34. Connecting plug; 35. Lower connector; 36. Adhesive layer; 351. Groove. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A split-type lithium battery protection board includes a protection board body 1. A first fixing mechanism 2 is movably connected to the front of the outer surface of the protection board body 1, and a second fixing mechanism 5 is movably connected to the rear of the outer surface of the protection board body 1. The first fixing mechanism 2 and the second fixing mechanism 5 have the same structure. A ribbon cable 4 is fixedly connected to the rear end of the protection board body 1, and a protective device 3 is movably connected to the rear end of the protection board body 1. The ribbon cable 4 is located inside the protective device 3.

[0025] In this embodiment, the first fixing mechanism 2 includes a connecting frame 21, which has an internal hollow structure. Elastic straps 22 are fixedly connected to the left and right ends of the connecting frame 21. The ends of the two elastic straps 22 away from the connecting frame 21 are respectively fixedly connected to the outer shell 25 and the snap-fit ​​plate 23. The upper middle part of the outer shell 25 has a slot 24. The upper left part of the outer shell 25 is movably connected to the limit strip 26 through a rotating shaft. The snap-fit ​​plate 23 is adapted to the slot 24. The connecting frame 21 is inserted and movably connected to the protective plate body 1.

[0026] Through the above method: after the elastic straps 22 are wrapped, the snap-fit ​​plates 23 at the ends of the two elastic straps 22 and the outer shell 25 are snapped together to make them firmly snapped together. At this time, the elastic straps 22 tightly hold the battery under their own elasticity, thereby making the protection board body 1 firmly fixed on one side of the battery.

[0027] In this embodiment, the protective device 3 includes an upper connector 31 and a lower connector 35. Rubber strips 33 are fixedly connected to the rear ends of the upper connector 31 and the lower connector 35. Several reinforcing ribs 32 are fixedly connected to the ends of the two rubber strips 33 that are far apart from each other. Both rubber strips 33 are U-shaped structures. Adhesive layers 36 are provided at the ends of the two upper connectors 31 that are close to each other. Pairing plugs 34 are fixedly connected to the lower left and lower right ends of the upper connectors 31. The lower ends of the two pairing plugs 34 are umbrella-shaped structures. Two grooves 351 are opened in the lower connector 35. The two pairing plugs 34 are respectively inserted and movably connected to the two grooves 351. The upper connector 31 and the lower connector 35 are bonded to the protective plate body 1 through the adhesive layer 36. Both rubber strips 33 are located on the outer surface of the ribbon cable 4.

[0028] The above method involves inserting the upper connector 31 and the lower connector 35 into the protective plate body 1 and firmly bonding them together. During the connection process, it is important to ensure that the two mating plugs 34 at the lower end of the upper connector 31 are accurately inserted into the two grooves 351 at the upper end of the lower connector 35. After the connection is completed, the rubber strips 33 installed at the rear ends of the upper connector 31 and the lower connector 35 will fit tightly together, completely enclosing the ribbon cable 4 and protecting it.

[0029] It should be noted that this utility model describes a split-type lithium battery protection board. A specially designed connecting frame 21 is fitted onto the outer surface of the protection board body 1. The size and shape of the connecting frame 21 perfectly match the protection board body 1. Two elastic straps 22 are wrapped around the outer surface of the battery. The elastic straps 22 are made of a material with good elasticity and flexibility, which can automatically adjust the tightness according to the shape of the battery to ensure a tight fit to the battery surface. After the elastic straps 22 are wrapped, the snap-fit ​​plates 23 at the ends of the two elastic straps 22 and the outer shell 25 are snapped together to firmly attach them together. At this time, the elastic straps 22, under their own elasticity, tightly hold the battery, thereby firmly fixing the protection board body 1 to one side of the battery. This fixing method is not only easy to install, but also facilitates the subsequent disassembly and removal of the protection board body 1 for inspection and maintenance. When inspecting, repairing, or replacing the protection board body 1, simply unfasten the snap-fit ​​between the snap-fit ​​plate 23 and the outer casing 25 to easily remove the protection board body 1, greatly improving maintenance efficiency and reducing maintenance costs. Insert the upper connector 31 and the lower connector 35 into the protection board body 1 and firmly adhere them together. During the connection process, ensure that the two mating plugs 34 at the lower end of the upper connector 31 are accurately inserted into the two grooves 351 at the upper end of the lower connector 35. After the connection is completed, the rubber strips 33 installed at the rear ends of the upper connector 31 and the lower connector 35 will fit tightly together, completely encasing the ribbon cable 4. The rubber strips 33 have good flexibility and elasticity, which can provide cushioning and protection when the ribbon cable 4 is subjected to external force, preventing the ribbon cable 4 from breaking at the connection due to excessive bending, effectively extending the service life of the ribbon cable 4 and ensuring the stable operation of the battery system.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A split-type lithium battery protection board, comprising a protection board body (1), characterized in that: The front of the outer surface of the protective plate body (1) is movably connected to a first fixing mechanism (2), and the rear of the outer surface of the protective plate body (1) is movably connected to a second fixing mechanism (5). The first fixing mechanism (2) and the second fixing mechanism (5) have the same structure. The rear end of the protective plate body (1) is fixedly connected to a ribbon cable (4), and the rear end of the protective plate body (1) is movably connected to a protective device (3). The ribbon cable (4) is located inside the protective device (3). The first fixing mechanism (2) includes a connecting frame (21), which has an internal hollow structure. The left and right ends of the connecting frame (21) are fixedly connected with elastic straps (22). The ends of the two elastic straps (22) away from the connecting frame (21) are respectively fixedly connected with a shell (25) and a snap plate (23). The upper middle part of the shell (25) has a slot (24). The upper left part of the shell (25) is movably connected with a limit strip (26) through a rotating shaft.

2. The split-type lithium battery protection board according to claim 1, characterized in that: The card plate (23) is adapted to the card slot (24).

3. A split-type lithium battery protection board according to claim 1, characterized in that: The connecting frame (21) is interlocked and movably connected to the protective plate body (1).

4. A split-type lithium battery protection board according to claim 1, characterized in that: The protective device (3) includes an upper connector (31) and a lower connector (35). The rear ends of the upper connector (31) and the lower connector (35) are both fixedly connected with rubber strips (33). The ends of the two rubber strips (33) that are far apart from each other are fixedly connected with several reinforcing ribs (32). The two rubber strips (33) are both "U" shaped structures. The ends of the two upper connectors (31) that are close to each other are provided with adhesive layers (36). The lower left and lower right parts of the upper connector (31) are both fixedly connected with plug-in pieces (34). The lower ends of the two plug-in pieces (34) are both umbrella-shaped structures.

5. A split-type lithium battery protection board according to claim 4, characterized in that: The lower connector (35) has two grooves (351) inside, and the two inserts (34) are respectively inserted into and connected to the two grooves (351).

6. A split-type lithium battery protection board according to claim 4, characterized in that: The upper connector (31) and the lower connector (35) are bonded to the protective plate body (1) through an adhesive layer (36), and the two rubber strips (33) are located on the outer surface of the ribbon cable (4).

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