Back splint type lithium battery pack

Abstract

The utility model relates to the technical field of lithium battery packs, in particular to a back splint type lithium battery pack which comprises a connecting box and a protective cover, the connecting box is connected with the protective cover in an inserted mode, the surface of the protective cover is connected with an adjusting rod in a sleeved mode through threads, the surface of the protective cover is fixedly connected with an inserting rod, and the surface of the connecting box is provided with an inserting groove. A fixing plate is fixedly connected to the surface of the connecting box, a supporting spring is fixedly connected to the surface of the fixing plate, and an abutting plate is fixedly connected to the surface of the fixing plate. According to the utility model, the insertion connection effect between the protective cover and the connecting box is realized under the insertion connection of the insertion rod and the insertion slot, the abutting supporting effect of the protective cover on the connecting box is realized through the connection of the connecting box and the fixing plate and the insertion connection of the protective cover and the fixing plate, and the abutting supporting effect of the protective cover on the connecting box is realized under the connection of the supporting spring and the abutting plate. The fixing operation of the connecting position of the protective cover on the connecting box is completed, and the connecting and using effect and performance are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery packs, in particular to a back-clip type lithium battery pack. Background Art

[0002] The clip-on battery is also called "external battery", "backup battery", "back power bank", and "digital charging companion". It is not only a mobile power source, but also a protective case.

[0003] A back-clip lithium battery pack is a type of lithium battery. By using the back-clip lithium battery pack, a fixed support effect for the lithium battery is achieved. However, when using the existing back-clip lithium battery pack, the battery pack is connected by bolts. Long-term connection and use can easily cause oxidation on the surface of the bolts, affecting the disassembly and assembly operation of the battery pack. Utility Model Content

[0004] The purpose of the utility model is to provide a back-clamp lithium battery pack to solve the problem in the above-mentioned background technology that the battery pack is connected by bolts, and long-term connection and use may easily cause oxidation on the surface of the bolts, thereby affecting the disassembly and assembly operation of the battery pack.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a back-clamp lithium battery pack, comprising a connecting box and a protective cover, the connecting box and the protective cover are plug-in connected, the surface of the protective cover is provided with an adjusting rod through a threaded sleeve, the surface of the protective cover is fixedly connected with the plug rod, the surface of the connecting box is provided with a slot, the surface of the connecting box is fixedly connected with a fixing plate, the surface of the fixing plate is fixedly connected with a supporting spring, the surface of the fixing plate is fixedly connected with a resist plate, the surface of the adjusting rod is movably connected with a connecting frame, the surface of the connecting frame is fixedly connected with a supporting plate, the surface of the support plate is fixedly connected with a telescopic spring, the surface of the telescopic spring is fixedly connected with a ring plate, and the upper surface of the connecting frame is fixedly connected with a limiting rod.

[0006] Preferably, the connection box and the protective cover are plug-connected by means of an insertion rod and a slot, and the cross-sections of the connection box and the protective cover are both in an "L" shape.

[0007] Preferably, the cross section of the fixing plate is in an "L" shape, the surface of the abutment plate is in an arc shape, and both ends of the support spring are fixedly connected to the surfaces of the fixing plate and the abutment plate.

[0008] Preferably, the abutment plate and the support spring act on the inner side of the connection box, the abutment plate on the surface of the fixing plate and the abutment plate on the inner side of the connection box are oppositely and alternately distributed, and the protective cover and the abutment plate are abutted and connected.

[0009] Preferably, the adjustment rod passes through the protective cover and is rotatably connected to the connecting frame, the connecting frame is in an "I" shape, and the support plates are distributed in four groups around the connecting frame.

[0010] Preferably, two ends of the telescopic spring are fixedly connected to the surfaces of the support plate and the ring plate, the surface of the ring plate is in an arc shape, and the ring plate and the support plate are connected correspondingly.

[0011] Preferably, the limit rod is fixedly connected to the end of the adjustment rod away from the end connected to the connecting frame, and the limit rod passes through the protective cover and is fixedly connected to the connecting frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Through the connection between the protective cover and the plug rod, and the connection between the connection box and the slot, the plug-in connection between the plug rod and the slot is realized, and through the connection between the connection box and the fixed plate, the plug-in connection between the protective cover and the fixed plate is realized to achieve the abutment support effect of the protective cover on the connection box. Under the connection of the support spring and the abutment plate, the fixing operation of the connection position of the protective cover on the connection box is completed, thereby improving its connection effect and performance.

[0014] 2. By connecting the adjusting rod and the protective cover, connecting the adjusting rod and the connecting frame, and connecting the connecting frame and the support plate, the position of the support plate in the protective cover can be adjusted. By connecting the support plate and the telescopic spring, and connecting the telescopic spring and the ring plate, the position of the lithium battery in the connecting box and the protective cover can be supported. By connecting the connecting frame and the limit rod, under the action of the limit rod, the sliding angle of the support plate in the protective cover can be limited, thereby improving the installation protection range and effect of the connecting box and the protective cover for the lithium battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view stereoscopic schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of a three-dimensional explosion of the structure of the utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the structure of the connection box of the utility model from the back;

[0018] Figure 4 It is a partial three-dimensional exploded schematic diagram of the connection structure of the connection box and the protective cover of the utility model;

[0019] Figure 5 It is a partially cutaway stereoscopic schematic diagram of the connection structure between the protective cover and the support plate of the utility model.

[0020] In the figure: 1. connection box; 2. protective cover; 3. adjustment rod; 4. limit rod; 5. insertion rod; 6. slot; 7. fixing plate; 8. support spring; 9. abutment plate; 10. connection frame; 11. support plate; 12. telescopic spring; 13. ring plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 , an embodiment provided by the utility model:

[0023] A back-clamp lithium battery pack comprises a connection box 1 and a protective cover 2, which are plug-in connected. An adjusting rod 3 is threadedly sleeved on the surface of the protective cover 2, and an insertion rod 5 is fixedly connected to the surface of the protective cover 2. A slot 6 is provided on the surface of the connection box 1, and a fixing plate 7 is fixedly connected to the surface of the connection box 1, and a supporting spring 8 is fixedly connected to the surface of the fixing plate 7, and a stop plate 9 is fixedly connected to the surface of the fixing plate 7. A connection frame 10 is movably connected to the surface of the adjusting rod 3, and a supporting plate 11 is fixedly connected to the surface of the connection frame 10, and a telescopic spring 12 is fixedly connected to the surface of the support plate 11, and a ring plate 13 is fixedly connected to the surface of the telescopic spring 12. A limiting rod 4 is fixedly connected to the upper surface of the connection frame 10. Through the connection between the connection box 1 and the slot 6, the connection between the protective cover 2 and the insertion rod 5, and the plug-in connection between the insertion rod 5 and the slot 6, the plug-in connection effect between the connection box 1 and the protective cover 2 is achieved.

[0024] Furthermore, the connection box 1 and the protective cover 2 are plugged in and connected by the insertion rod 5 and the slot 6. The cross-sections of the connection box 1 and the protective cover 2 are both "L" shaped. Through the connection of the connection box 1 and the protective cover 2, and the plug-in connection of the insertion rod 5 and the slot 6, the placement and protection of the lithium battery in the connection box 1 and the protective cover 2 are achieved.

[0025] Furthermore, the cross-section of the fixed plate 7 is in an "L" shape, the surface of the abutment plate 9 is in an arc shape, and the two ends of the support spring 8 are fixedly connected to the surfaces of the fixed plate 7 and the abutment plate 9. Through the connection between the connecting box 1 and the fixed plate 7, and under the connection between the support spring 8 and the abutment plate 9, the abutment support effect of the position of the protective cover 2 in the fixed plate 7 is achieved.

[0026] Furthermore, the butt plate 9 and the support spring 8 act on the inner side of the connection box 1, the butt plate 9 on the surface of the fixed plate 7 and the butt plate 9 on the inner side of the connection box 1 are oppositely and alternately distributed, the protective cover 2 and the butt plate 9 are butted and connected, and through the action of the support spring 8 and the butt plate 9, under the action of the fixed plate 7 and the connection box 1, the plug-in support effect of the position of the protective cover 2 on the connection box 1 is achieved.

[0027] Furthermore, the adjusting rod 3 passes through the protective cover 2 and the connecting frame 10 for rotational connection. The connecting frame 10 is in an "I" shape, and the support plates 11 are distributed in four groups around the connecting frame 10. Through the connection between the adjusting rod 3 and the protective cover 2 and the connection between the adjusting rod 3 and the connecting frame 10, the effect of regulating the position of the support plates 11 in the connecting box 1 is achieved.

[0028] Furthermore, both ends of the telescopic spring 12 are fixedly connected to the surfaces of the support plate 11 and the ring plate 13. The surface of the ring plate 13 is in an arc shape. The ring plate 13 and the support plate 11 are correspondingly connected. Through the connection between the support plate 11 and the telescopic spring 12, and under the connection between the telescopic spring 12 and the ring plate 13, an elastic sliding effect is achieved on the action position of the ring plate 13, thereby improving the placement range and effect of the lithium battery in the connection box 1.

[0029] Furthermore, the limit rod 4 is fixedly connected to the end of the adjustment rod 3 away from the connection with the connecting frame 10, and the limit rod 4 passes through the protective cover 2 and the connecting frame 10 and is fixedly connected. At the connection between the connecting frame 10 and the limit rod 4, the limit rod 4 can realize the limiting effect of the sliding angle of the connecting frame 10 in the connecting box 1, thereby improving the placement range and performance of its lithium battery.

[0030] Working principle: When placing the lithium battery, separate the connection box 1 and the protective cover 2 to place the lithium battery in the connection box 1, and then connect the connection box 1 and the protective cover 2. Under the plug-in connection of the plug rod 5 and the slot 6, the connection box 1 and the protective cover 2 can achieve the placement protection effect of the lithium battery. Through the connection of the fixing plate 7 and the connection box 1, under the connection of the support spring 8 and the abutment plate 9, the abutment support operation of the protective cover 2 on the connection box 1 is completed. Under the connection of the adjusting rod 3 and the protective cover 2, through the connection of the connecting frame 10 and the limiting rod 4, the position of the connecting frame 10 and the support plate 11 in the connection box 1 is controlled and limited. Under the connection of the support plate 11 and the telescopic spring 12, through the connection of the telescopic spring 12 and the ring plate 13, the placement range and performance of the lithium battery in the connection box 1 are improved.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A back-clip lithium battery pack, comprising a connection box (1) and a protective cover (2), characterized in that: The connection box (1) and the protective cover (2) are plug-in connected, the surface of the protective cover (2) is connected with an adjustment rod (3) by means of a threaded sleeve, the surface of the protective cover (2) is fixedly connected with an insertion rod (5), the surface of the connection box (1) is provided with a slot (6), the surface of the connection box (1) is fixedly connected with a fixing plate (7), the surface of the fixing plate (7) is fixedly connected with a supporting spring (8), the surface of the fixing plate (7) is fixedly connected with a stop plate (9), the surface of the adjustment rod (3) is movably connected with a connection frame (10), the surface of the connection frame (10) is fixedly connected with a supporting plate (11), the surface of the supporting plate (11) is fixedly connected with a telescopic spring (12), the surface of the telescopic spring (12) is fixedly connected with a ring plate (13), and the upper surface of the connection frame (10) is fixedly connected with a limiting rod (4).

2. A back-clip lithium battery pack according to claim 1, characterized in that: The connection box (1) and the protective cover (2) are connected by plugging together a plug rod (5) and a slot (6); the cross sections of the connection box (1) and the protective cover (2) are both in an "L" shape.

3. The back-clip lithium battery pack according to claim 1, characterized in that: The cross section of the fixing plate (7) is in an "L" shape, the surface of the abutment plate (9) is in an arc shape, and the two ends of the support spring (8) are fixedly connected to the surfaces of the fixing plate (7) and the abutment plate (9).

4. The back-clip lithium battery pack according to claim 1, characterized in that: The abutment plate (9) and the support spring (8) act on the inner side of the connection box (1); the abutment plate (9) on the surface of the fixing plate (7) and the abutment plate (9) on the inner side of the connection box (1) are arranged in an opposed and staggered manner; and the protective cover (2) and the abutment plate (9) are abutted and connected.

5. The back-clip lithium battery pack according to claim 1, characterized in that: The adjusting rod (3) passes through the protective cover (2) and the connecting frame (10) for rotational connection. The connecting frame (10) is in the shape of an "I" character. The supporting plates (11) are distributed in four groups around the connecting frame (10).

6. The back-clip lithium battery pack according to claim 1, characterized in that: The two ends of the telescopic spring (12) are fixedly connected to the surfaces of the support plate (11) and the ring plate (13); the surface of the ring plate (13) is in an arc shape; and the ring plate (13) and the support plate (11) are connected correspondingly.

7. The back-clip lithium battery pack according to claim 1, characterized in that: The limiting rod (4) is fixedly connected to the end of the adjusting rod (3) away from the end connected to the connecting frame (10), and the limiting rod (4) passes through the protective cover (2) and the connecting frame (10) to be fixedly connected.

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