Lithium battery pack capable of being quickly connected with plug

Abstract

The utility model discloses a lithium battery pack with a quick connection plug, which comprises a lithium battery pack body, two binding posts, a quick connection plug strip body and two connection wire bodies, and a limiting mechanism is arranged at the top of the lithium battery pack body. The fixing nut needs to be screwed for multiple circles, so that the fixing nut clamps the connecting line of the quick connecting plug, the multi-circle rotation of the fixing nut is more time-consuming and inconvenient, in the process of screwing the nut, in order to ensure the reliability of connection, the uniformity of force needs to be paid attention to, and if the force is too large, the fixing nut cannot be screwed. The problems that the connecting line of the quick connecting plug may be damaged, and the connecting line of the quick connecting plug may be loosened if the force is too small, so that the complexity and inconvenience of operation are increased to a certain extent, and the connecting efficiency of the quick connecting plug and the lithium battery pack is influenced are solved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery packs, and more particularly to a lithium battery pack with a quick-connect plug. Background Technology

[0002] A lithium battery pack is a device that uses multiple lithium batteries connected together in series, parallel, or series-parallel combination to provide power as a whole. A lithium battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution.

[0003] Currently, Chinese patent CN212182392U discloses a lithium battery pack that can be quickly connected. In this utility model, when connecting the wires, the wire ring is sleeved on the terminal, and the wire ring is fixed on the terminal by the fixing nut. Then, the pull hook on the pull rod is pulled to hook the hook onto the hanging ring. This can effectively prevent the fixing nut from rotating and avoid the fixing nut from falling off the terminal, thus ensuring the stability of the wire ring.

[0004] Currently, some quick-connect plug cables for lithium battery packs require multiple turns of the fixing nut to clamp the cable when connecting it to the battery pack. This multiple-turn rotation of the fixing nut is time-consuming and inconvenient. Furthermore, to ensure a reliable connection, even force must be applied during the tightening process. Excessive force may damage the quick-connect plug cable, while insufficient force may cause it to loosen. This increases the complexity and inconvenience of the operation, affecting the efficiency of connecting the quick-connect plug to the lithium battery pack. Utility Model Content

[0005] The main objective of this invention is to provide a lithium battery pack with a quick-connect plug. This addresses the problem that some existing lithium battery packs require multiple turns of the fixing nut to clamp the quick-connect plug cable when connecting it to the battery pack. This multi-turn rotation of the fixing nut is time-consuming and inconvenient. Furthermore, to ensure reliable connection, even force is crucial during the tightening process; excessive force may damage the quick-connect plug cable, while insufficient force may cause it to loosen. This increases the complexity and inconvenience of the operation, affecting the efficiency of connecting the quick-connect plug to the lithium battery pack.

[0006] To achieve the above objectives, the present invention proposes a lithium battery pack with a quick-connect plug, comprising a lithium battery pack body, two terminals, a quick-connect plug body, and two connecting wire bodies. A limiting mechanism is provided on the top of the lithium battery pack body, and a protective cover is provided on the top of the lithium battery pack body.

[0007] The limiting mechanism includes two retaining rings, two movable rods, a spring, and a fixed block. The bottom of the fixed block is fixedly connected to the top of the lithium battery pack body. The spring is movably disposed inside the fixed block. The movable rods are movably inserted into the fixed block. The two sides of the spring are in contact with the surfaces of the two movable rods respectively. The retaining rings are fixedly connected to the movable rods on the side closest to the movable rods.

[0008] Preferably, a conductive ring is fixedly connected to the rear side of the connecting wire body. The conductive ring is movably sleeved on the surface of the terminal block, and a retaining ring is engaged with the surface of the terminal block. The bottom of the retaining ring is in contact with the top of the conductive ring.

[0009] Preferably, a pinch block is fixedly connected to the top of the retaining ring, and anti-slip blocks are fixedly connected to opposite sides of the two pinch blocks. The number of anti-slip blocks is several and they are evenly distributed on the surface of the pinch blocks.

[0010] Preferably, the top of the lithium battery pack body is fixedly connected to two clamping plates on both sides, and clamping strips are fixedly connected to the opposite side of the two clamping plates. Limiting grooves are opened on both sides of the protective cover, and the clamping strips are movably engaged inside the limiting grooves.

[0011] Preferably, the card plates are made of elastic material, and pull plates are fixedly connected to opposite sides of the two card plates.

[0012] Preferably, a pull ring is fixedly connected to the top of the protective cover.

[0013] Preferably, the protective cover has wire holes on both sides of the front side, and a sealing gasket is fixedly connected to the inner wall of the wire hole, and the inner wall of the sealing gasket is in close contact with the surface of the connecting wire body.

[0014] Preferably, the protective cover, retaining ring, and movable rod are all made of insulating material.

[0015] In this invention, by squeezing the two pinch blocks together, the spring is compressed, causing the retaining ring to disengage from the terminal. Then, the conductive ring is placed on the terminal surface. Releasing the pinch blocks allows the spring to return, pushing the movable rod out from the fixed block, causing the retaining ring to engage with the terminal surface, with its bottom contacting the top of the conductive ring. This allows for quick connection of the quick-connect strip and connecting wire to the lithium battery pack. The quick-connect strip can then be quickly plugged into an external matching plug, facilitating power supply to electrical equipment. Both the connection of the quick-connect strip to the lithium battery pack and the connection to the external matching plug can be completed quickly, avoiding the need for multiple turns of the fixing nut to clamp the quick-connect plug connecting wire when connecting the quick-connect plug to the lithium battery pack in some existing systems. The multiple turns are time-consuming and inconvenient. Furthermore, to ensure reliable connection, even force is crucial during nut tightening. Excessive force may damage the quick-connect plug cable, while insufficient force may loosen it. This increases operational complexity and inconvenience, affecting the efficiency of connecting the quick-connect plug to the lithium battery pack. The protective cover is then placed over the two terminals, pressing against the retaining plate. The retaining plate, being made of elastic material, deforms, allowing the retaining strip to be easily moved into the slot. The connecting wire is then moved from the opening at the bottom of the sealing gasket into the internal hole, allowing the gasket to wrap around the wire, ensuring a seal between the wire and the protective cover. This provides dust and water protection for the terminals and conductive ring, preventing dust and oxidation from affecting connection stability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0018] Figure 2 This is a three-dimensional connection diagram of the lithium battery pack body and the fixing block in an embodiment of this utility model;

[0019] Figure 3 This is a three-dimensional exploded view of the terminal block and conductive ring in an embodiment of this utility model;

[0020] Figure 4 This is a three-dimensional exploded view of the movable rod and the fixed block in an embodiment of this utility model;

[0021] Figure 5 This is a three-dimensional exploded view of the threading hole and sealing gasket in an embodiment of this utility model;

[0022] Figure 6 This is a cross-sectional view of the sealing gasket in an embodiment of this utility model;

[0023] Figure 7 This is a three-dimensional connection diagram of the card plate and card strip in an embodiment of this utility model.

[0024] The reference numerals in the attached diagrams are as follows: 1. Lithium battery pack body; 2. Connecting cable body; 3. Protective cover; 4. Clamping plate; 5. Terminal block; 6. Limiting mechanism; 601. Clamping ring; 602. Movable rod; 603. Spring; 604. Fixing block; 7. Conductive ring; 8. Pinch block; 9. Anti-slip block; 10. Pull ring; 11. Limiting groove; 12. Wire hole; 13. Sealing gasket; 14. Clamping strip; 15. Pull plate; 16. Quick-connect insert body.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] 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.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] This invention provides a lithium battery pack with a quick-connect plug, aiming to solve the problem that in some existing lithium battery packs, the quick-connect plug cable requires multiple turns of the fixing nut to clamp the cable when connecting it to the battery pack. This multiple turns of the fixing nut are time-consuming and inconvenient. Furthermore, to ensure reliable connection, even force is required during the tightening process. Excessive force may damage the quick-connect plug cable, while insufficient force may cause it to loosen. This increases the complexity and inconvenience of the operation and affects the efficiency of connecting the quick-connect plug to the lithium battery pack.

[0031] like Figure 1-7 As shown, the present invention provides a lithium battery pack with a quick-connect plug, including a lithium battery pack body 1, two terminals 5, a quick-connect plug body 16 and two connecting wire bodies 2. A limit mechanism 6 is provided on the top of the lithium battery pack body 1, and a protective cover 3 is provided on the top of the lithium battery pack body 1.

[0032] The limiting mechanism 6 includes two retaining rings 601, two movable rods 602, a spring 603, and a fixing block 604. The bottom of the fixing block 604 is fixedly connected to the top of the lithium battery pack body 1. The spring 603 is movably disposed inside the fixing block 604. The movable rods 602 are movably inserted into the fixing block 604. The two sides of the spring 603 are in contact with the surfaces of the two movable rods 602 respectively. The retaining ring 601 is fixedly connected to the movable rod 602 on the side closest to the movable rod 602.

[0033] In this invention, by squeezing the two pinch blocks 8, they are brought closer together, compressing the spring 603. This causes the retaining ring 601 to disengage from the terminal 5. Then, the conductive ring 7 is fitted onto the surface of the terminal 5. Releasing the pinch blocks 8 causes the spring 603 to rebound, pushing the movable rod 602 out of the fixed block 604. This causes the retaining ring 601 to engage with the surface of the terminal 5, with its bottom contacting the top of the conductive ring 7. This allows for quick connection of the quick-connect strip body 16 and the connecting wire body 2 to the lithium battery pack body 1. The quick-connect strip body 16 can then be quickly plugged into an external matching plug, facilitating power supply to electrical equipment. Both the connection of the quick-connect strip body 16 to the lithium battery pack and the connection of the quick-connect strip body 16 to the external matching plug can be completed quickly. This avoids the need for multiple turns of the fixing nut when connecting the quick-connect plug to the lithium battery pack, as required in some existing lithium battery packs. Clamping and rotating the fixing nut multiple times is time-consuming and inconvenient. Furthermore, to ensure reliable connection, even force is crucial during tightening. Excessive force may damage the quick-connect plug cable, while insufficient force may loosen it. This increases operational complexity and inconvenience, affecting the efficiency of connecting the quick-connect plug to the lithium battery pack. The protective cover 3 is then placed over the two terminals 5, pressing against the clamping plate 4. Since the clamping plate 4 is made of elastic material, it can deform, allowing the clamping strip 14 to be easily moved into the slot. The connecting wire body 2 then moves from the opening at the bottom of the sealing gasket 13 into the internal hole, allowing the sealing gasket 13 to wrap around the connecting wire body 2, thus sealing the connection between the connecting wire body 2 and the protective cover 3. The protective cover 3 provides dust and water protection for the terminals 5 and the conductive ring 7, preventing dust and oxidation from affecting the connection stability.

[0034] Please refer to the following: Figure 3 A conductive ring 7 is fixedly connected to the rear side of the connecting wire body 2. The conductive ring 7 is movably sleeved on the surface of the terminal 5, and a retaining ring 601 is engaged with the surface of the terminal 5, with the bottom of the retaining ring 601 contacting the top of the conductive ring 7. In this embodiment, by sleeved the conductive ring 7 on the surface of the terminal 5, the retaining ring 601 is engaged with the terminal 5, and the bottom of the retaining ring 601 contacts the top of the conductive ring 7, thus limiting the conductive ring 7 and the terminal 5 together.

[0035] For further information, please continue to refer to [link / reference]. Figure 4The top of the retaining ring 601 is fixedly connected to a pinch block 8, and anti-slip blocks 9 are fixedly connected to opposite sides of the two pinch blocks 8. The number of anti-slip blocks 9 is several and they are evenly distributed on the surface of the pinch blocks 8. In this embodiment, by pinching the pinch blocks 8 by hand, the two pinch blocks 8 can be brought closer together. The contact between the anti-slip blocks 9 and the fingers makes the pinching of the pinch blocks 8 more stable.

[0036] Please continue to refer to this. Figure 1 , Figure 5 and Figure 7 Both sides of the top of the lithium battery pack body 1 are fixedly connected to a locking plate 4, and a locking strip 14 is fixedly connected to the opposite side of each of the two locking plates 4. Limiting grooves 11 are formed on both sides of the protective cover 3, and the locking strip 14 is movably engaged inside the limiting groove 11. In this embodiment, by moving the protective cover 3 until the locking strip 14 is engaged inside the limiting groove 11, the locking strip 14 can limit the movement of the protective cover 3.

[0037] Please refer to Figure 1 , Figure 3 and Figure 7 The card plate 4 is made of elastic material, and pull plates 15 are fixedly connected to opposite sides of both card plates 4. In this embodiment, since the card plate 4 is made of elastic material, the card plate 4 can undergo elastic deformation. When the protective cover 3 moves downward and is squeezed by the card strip 14, the card plate 4 can undergo elastic deformation to both sides, which facilitates the movement of the card strip 14 into the limiting groove 11. By pulling with the pull plate 15, the card plate 4 can undergo elastic deformation, causing the card strip 14 to move out of the limiting groove 11, which makes it easy to disassemble the protective cover 3.

[0038] Additionally, please refer to Figure 5 A pull ring 10 is fixedly connected to the top of the protective cover 3. In this embodiment, the protective cover 3 can be easily moved upwards and disassembled by holding the pull ring 10.

[0039] Please refer to Figure 1 , Figure 5 and Figure 6 The protective cover 3 has wire holes 12 on both sides of its front side. A sealing gasket 13 is fixedly connected to the inner wall of the wire hole 12, and the inner wall of the sealing gasket 13 is in close contact with the surface of the connecting wire body 2. In this embodiment, by moving the connecting wire body 2 from the opening at the bottom of the sealing gasket 13 into the inner hole, the sealing gasket 13 wraps around the connecting wire body 2, thus maintaining a seal between the connecting wire body 2 and the protective cover 3.

[0040] Additionally, please refer to Figure 1 and Figure 4 The protective cover 3, the retaining ring 601, and the movable rod 602 are all made of insulating materials. In this embodiment, since the protective cover 3, the retaining ring 601, and the movable rod 602 are all made of insulating materials, the safety of use is improved.

[0041] It should be noted that the lithium battery pack body 1 is a mature technology that has been published. It consists of multiple lithium batteries connected together in series, parallel or series-parallel combination to provide power as a whole. It will not be described in detail here.

[0042] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A lithium battery pack with a quick-connect plug, characterized in that, The lithium battery pack of the quick-connect plug includes a lithium battery pack body (1), two terminals (5), a quick-connect plug body (16) and two connecting wire bodies (2). The top of the lithium battery pack body (1) is provided with a limit mechanism (6) and a protective cover (3) is provided on the top of the lithium battery pack body (1). The limiting mechanism (6) includes two retaining rings (601), two movable rods (602), a spring (603), and a fixing block (604). The bottom of the fixing block (604) is fixedly connected to the top of the lithium battery pack body (1). The spring (603) is movably disposed inside the fixing block (604). The movable rods (602) are movably inserted into the fixing block (604). The two sides of the spring (603) are in contact with the surfaces of the two movable rods (602), respectively. The retaining ring (601) is fixedly connected to the movable rod (602) on the side closest to the movable rod (602).

2. The lithium battery pack with a quick-connect plug according to claim 1, characterized in that, A conductive ring (7) is fixedly connected to the rear side of the connecting wire body (2). The conductive ring (7) is movably sleeved on the surface of the terminal block (5). The retaining ring (601) is snapped onto the surface of the terminal block (5). The bottom of the retaining ring (601) is in contact with the top of the conductive ring (7).

3. The lithium battery pack with a quick-connect plug according to claim 1, characterized in that, The top of the retaining ring (601) is fixedly connected to a pinch block (8), and anti-slip blocks (9) are fixedly connected to opposite sides of the two pinch blocks (8). The number of anti-slip blocks (9) is several and they are evenly distributed on the surface of the pinch block (8).

4. The lithium battery pack with a quick-connect plug according to claim 1, characterized in that, Both sides of the top of the lithium battery pack body (1) are fixedly connected with a card plate (4), and both sides of the two card plates (4) are fixedly connected with a card strip (14). Both sides of the protective cover (3) are provided with a limiting groove (11), and the card strip (14) is movably engaged in the inside of the limiting groove (11).

5. The lithium battery pack with a quick-connect plug according to claim 4, characterized in that, The card plate (4) is made of elastic material, and pull plates (15) are fixedly connected to opposite sides of the two card plates (4).

6. The lithium battery pack with a quick-connect plug according to claim 1, characterized in that, A pull ring (10) is fixedly connected to the top of the protective cover (3).

7. The lithium battery pack with a quick-connect plug according to claim 1, characterized in that, Both sides of the front side of the protective cover (3) are provided with wire holes (12), and the inner wall of the wire hole (12) is fixedly connected with a sealing gasket (13). The inner wall of the sealing gasket (13) is in close contact with the surface of the connecting wire body (2).

8. The lithium battery pack with a quick-connect plug according to claim 1, characterized in that, The protective cover (3), the retaining ring (601), and the movable rod (602) are all made of insulating material.

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