A quick locking and fixing structure for upper and lower connectors of a power battery

Abstract

The present invention discloses a quick locking and fixing structure for upper and lower connectors of a power battery, comprising a first connector, a connecting piece is provided on one side of the first connector, and circular grooves are provided at the middle position of the front and rear surfaces above the first connector, an adjusting piece is rotatably connected between the two circular grooves, a first groove is provided on the lower surface of the first connector, and a second groove is sleeved on the outer surface of the first groove. The present invention relates to the technical field of power battery connectors, and the quick locking and fixing structure for upper and lower connectors of a power battery can quickly complete the installation work by clamping the clamping shaft inside the first groove into the clamping groove inside the second groove, and when disassembling, the unique structure of the special-shaped plate is utilized, and the user only needs to turn the handle to press the fixing surface by eccentrically rotating the bottom to separate the first connector and the second connector, and the self-locking structure of the handle is adopted to achieve non-artificial disengagement of the first connector and the second connector.

Description

Technical Field

[0001] The present invention relates to the technical field of power battery connectors, and in particular to a quick locking and fixing structure for upper and lower connectors of a power battery. Background Art

[0002] The power battery is the power source for tools, mostly referring to the batteries that power electric vehicles, electric trains, electric bicycles, and golf carts. They mostly use valve-sealed lead-acid batteries, open-mouth tubular lead-acid batteries, and lithium iron phosphate batteries. The connector is an indispensable part of the power battery, which is used to connect the power battery.

[0003] However, the current connection method between the upper and lower connectors of the power battery is mostly fixed by screws, which is inconvenient to disassemble or install, and is very troublesome. No corresponding improvement has been made to address this defect. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a quick locking and fixing structure for the upper and lower connectors of a power battery, which solves the problem that the current connection method between the upper and lower connectors of the power battery is mostly fixed by screws, which is inconvenient to disassemble or install.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a quick locking and fixing structure of upper and lower connectors of a power battery, comprising a first connector, a connecting piece is provided on one side of the first connector, and circular grooves are provided at the middle position of the upper front and rear surfaces of the first connector, an adjusting piece is rotatably connected between the two circular grooves, a first groove is provided on the lower surface of the first connector, a second groove is sleeved on the outer surface of the first groove, a second connector is provided on the lower surface of the second groove, a plurality of card shafts are evenly connected to the interior of the first groove, and card grooves matching each card shaft are evenly provided inside the card groove.

[0006] The adjusting member includes two special-shaped plates, and opposite sides of the two special-shaped plates are fixedly connected with rotating shafts, and opposite ends of the two rotating shafts are respectively embedded in two circular grooves rotatably installed on the first connector, and the outer surfaces of the two rotating shafts are sleeved and rotatably connected with torsion springs, and the two ends of the torsion springs are respectively fixedly connected to one side surface of the special-shaped plate and the outer surface of the first connector, and a handle is fixedly connected between one ends of the two special-shaped plates, and the lower surface of the handle is located on the upper surface of the connecting member.

[0007] Preferably, concave spring pieces are fixedly connected to the front and rear surfaces of the first connector at positions above the special-shaped plate.

[0008] Preferably, when the special-shaped plate is rotated to a 90-degree position, the upper surface of the second connector is located within the arc range of rotation of the other end of the special-shaped plate, and when the lower surface of the handle contacts the upper side of the connecting piece, the upper surface of the second connector is located on the lower side of the special-shaped plate.

[0009] Preferably, the lower end of the card shaft is clamped in the interior of the card slot, the lower inner diameter of the card slot is larger than the upper inner diameter, the lower outer diameter of the card shaft is larger than the upper outer diameter, and the upper outer diameter of the card shaft is equal to the upper inner diameter of the card slot, and the card slot is an elastic material component.

[0010] Preferably, the connecting member includes a fixed cylinder, one end of the fixed cylinder is embedded with a connecting shaft slidably installed, and the upper and lower surfaces of the other end of the fixed cylinder are embedded with concave blocks slidably installed, a first spring is fixedly connected between the inner upper surface of the concave block and the upper surface of the fixed cylinder, a sliding groove is provided on one end surface of the connecting shaft, and two limit plates are rotatably connected to one side surface of the inner part of the fixed cylinder, a second spring is fixedly connected between the four corners of the opposite sides of the two limit plates, and an arc surface is fixedly connected at the middle position of the opposite sides of the two limit plates.

[0011] Preferably, when the second spring is at its original length, the distance between the opposite sides of the two limit plates is equal to the inner diameter of the slide groove.

[0012] Preferably, positioning grooves are provided on both inner side surfaces of the slide groove, and a protrusion corresponding to the second spring is fixedly connected to the opposite side of one end of the two limit plates.

[0013] Preferably, when the first spring is at its original length, both ends of the concave block are located above the arc surface, and the two inner side surfaces of the concave block are in sliding contact with the opposite sides of the upper sides of the two arc surfaces respectively.

[0014] Beneficial Effects

[0015] The present invention provides a quick locking and fixing structure of upper and lower connectors of a power battery, which has the following beneficial effects compared with the prior art:

[0016] (1) The power battery upper and lower connectors quick lock fixing structure is characterized in that two opposite sides of the two special-shaped plates are fixedly connected with a rotating shaft, and the opposite ends of the two rotating shafts are respectively embedded in two circular grooves rotatably installed on the first connector, and the outer surfaces of the two rotating shafts are sleeved and rotatably connected with torsion springs, and the two ends of the torsion springs are respectively fixedly connected to one side of the special-shaped plate and the outer surface of the first connector. A handle is fixedly connected between one end of the two special-shaped plates, and the lower surface of the handle is located on the upper surface of the connector. When the first connector and the second connector need to be installed, it is only necessary to clamp the clamping shaft inside the first groove into the clamping groove inside the second groove to quickly complete the installation work. When disassembling, the user only needs to rotate the handle by utilizing the unique structure of the special-shaped plate, and the first connector and the second connector can be separated by pressing the fixed surface by the eccentric rotating bottom. The self-locking structure of the handle is adopted to achieve the non-artificial disengagement of the first connector and the second connector, and at the same time, it can achieve the purpose of fast, reliable and convenient plugging and unplugging.

[0017] (2) The power battery upper and lower connectors have a quick lock fixing structure, wherein a concave block is slidably embedded in the upper and lower surfaces of the other end of the fixing cylinder, a first spring is fixedly connected between the inner upper surface of the concave block and the upper surface of the fixing cylinder, a sliding groove is provided on one end surface of the connecting shaft, and two limit plates are rotatably connected to one side of the inner side of the fixing cylinder, a second spring is fixedly connected between the four corners of the opposite sides of the two limit plates, and an arc surface is fixedly connected at the middle position of the opposite sides of the two limit plates, so that the connecting shaft on the connecting member can be easily disassembled or installed, so that it is easy to replace the connecting shafts of different lengths, so that it can be applied to different types of power batteries. The device has a reasonable structural design and is convenient and quick to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a disassembled diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the present invention after assembly;

[0020] Figure 3 It is a schematic diagram of the disassembly of the adjusting member structure of the present invention;

[0021] Figure 4 is a schematic diagram of a first connector structure of the present invention;

[0022] Figure 5 is a schematic diagram of a second connector structure of the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the connection between the clamping shaft and the clamping slot of the present invention;

[0024] Figure 7 is a schematic diagram of the connecting member structure of the present invention;

[0025] Figure 8 It is a schematic diagram of the internal structure of the fixed cylinder of the present invention;

[0026] Fig. 9 It is a side view of the internal structure of the fixing cylinder of the present invention.

[0027] In the figure: 1, first connector; 101, concave spring piece; 2, connecting piece; 21, fixing cylinder; 22, connecting shaft; 23, concave block; 24, first spring; 25, slide groove; 26, positioning groove; 27, limit plate; 28, second spring; 29, arc surface; 210, convex block; 3, circular groove; 4, adjusting piece; 41, special-shaped plate; 42, rotating shaft; 43, torsion spring; 44, handle; 5, first groove; 6, second groove; 7, second connector; 8, clamping shaft; 9, clamping groove. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-2 and Figure 4-6 The present invention provides a technical solution: a fast locking and fixing structure of upper and lower connectors of a power battery, comprising a first connector 1, a connecting member 2 is arranged on one side of the first connector 1, and a circular groove 3 is provided at the middle position of the upper front and rear surfaces of the first connector 1, an adjusting member 4 is rotatably connected between the two circular grooves 3, a first groove 5 is provided on the lower surface of the first connector 1, a second groove 6 is sleeved on the outer surface of the first groove 5, a second connector 7 is provided on the lower surface of the second groove 6, a plurality of card shafts 8 are uniformly connected to the inside of the first groove 5, and card grooves 9 are uniformly provided inside the card groove 9 to match each card shaft 8, a concave spring piece 101 is fixedly connected to the front and rear surfaces of the first connector 1 at the upper position of the special-shaped plate 41, the lower end of the card shaft 8 is carded to the inside of the card groove 9, the lower inner diameter of the card groove 9 is larger than the upper inner diameter, the lower outer diameter of the card shaft 8 is larger than the upper outer diameter, and the upper outer diameter of the card shaft 8 is equal to the upper inner diameter of the card groove 9, and the card groove 9 is an elastic material component.

[0030] See also Figure 3In the embodiment of the present invention, the adjusting member 4 includes two special-shaped plates 41, and the opposite sides of the two special-shaped plates 41 are fixedly connected with a rotating shaft 42, and the opposite ends of the two rotating shafts 42 are respectively embedded in two circular grooves 3 rotatably installed on the first connector 1, and the outer surfaces of the two rotating shafts 42 are sleeved and rotatably connected with torsion springs 43, and the two ends of the torsion spring 43 are respectively fixedly connected to one side surface of the special-shaped plate 41 and the outer surface of the first connector 1, and a handle 44 is fixedly connected between one ends of the two special-shaped plates 41, and the lower surface of the handle 44 is located on the upper surface of the connecting member 2. When the special-shaped plate 41 is rotated to a 90-degree position, the upper surface of the second connector 7 is located within the arc range of the rotation of the other end of the special-shaped plate 41. When the lower surface of the handle 44 contacts the upper side of the connecting member 2, the upper surface of the second connector 7 is located on the lower side of the special-shaped plate 41.

[0031] See also Figure 7-9 In the embodiment of the present invention, the connecting member 2 includes a fixed cylinder 21, one end of the fixed cylinder 21 is embedded with a connecting shaft 22 for sliding installation, and the upper and lower surfaces of the other end of the fixed cylinder 21 are embedded with a concave block 23 for sliding installation, a first spring 24 is fixedly connected between the inner upper surface of the concave block 23 and the upper surface of the fixed cylinder 21, a sliding groove 25 is provided on one end surface of the connecting shaft 22, and one side of the inner part of the fixed cylinder 21 is rotatably connected to two limit plates 27, and two limit plates 27 are fixedly connected between four corners of the opposite side thereof with a second spring 28, and the two limit plates 2 7 are fixedly connected with an arc surface 29 at the middle position of the opposite side. When the second spring 28 is at its original length, the distance between the opposite sides of the two limit plates 27 is equal to the inner diameter of the slide slot 25. Positioning grooves 26 are provided on both inner side surfaces of the slide slot 25. The opposite sides of one end of the two limit plates 27 are fixedly connected with a convex block 210 corresponding to the second spring 28. When the first spring 24 is at its original length, the two ends of the concave block 23 are located above the arc surface 29, and the inner two side surfaces of the concave block 23 are in sliding contact with the opposite sides of the upper sides of the two arc surfaces 29 respectively.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] When in use, first clamp the second groove 6 on the second connector 7 on the outer surface of the first groove 5, and then clamp the card shaft 8 inside the first groove 5 in the card groove 9 inside the second groove 6. Since the lower inner diameter of the card groove 9 is larger than the upper inner diameter, the lower end outer diameter of the card shaft 8 is larger than the upper end outer diameter, and the upper end outer diameter of the card shaft 8 is equal to the upper inner diameter of the card groove 9, when the lower end of the card shaft 8 is clamped into the inner part of the card groove 9, under the elasticity of the card groove 9, the upper end of the card groove 9 will block the lower end of the card shaft 8, so that the card shaft 8 is firmly clamped in the inner part of the card groove 9, thereby completing the installation work. When disassembling, flip the handle 44 to drive the two special-shaped plates 41 to rotate, and the special-shaped plates When 41 rotates, the concave spring piece 101 is squeezed, and the torsion spring 43 is in a compressed state. Since the upper surface of the second connector 7 is located within the arc range of the other end of the special-shaped plate 41, when the special-shaped plate 41 rotates downward, the lower side of the special-shaped plate 41 will squeeze the upper surface of the second connector 7. The second connector 7 is pushed down by the eccentric rotating bottom to compress the fixed surface, and the disassembly and assembly work is completed. Then the handle 44 is released. Under the elasticity of the torsion spring 43, the torsion spring 43 restores the special-shaped plate 41 to its original position, and the concave spring piece 101 will restore its original position. The concave spring piece 101 blocks the special-shaped plate 41 below to form a self-locking function to prevent the special-shaped plate 41 from rotating.

[0034] Furthermore, when the length of the connecting shaft 22 needs to be changed, one end of the connecting shaft 22 is inserted into the interior of the fixed cylinder 21, and under the elasticity of the first spring 24, the two concave blocks 23 are pressed so that the two ends of the two concave blocks 23 slide in the arc surfaces 29 on the opposite sides of the limit plates 27 respectively. As the concave blocks 23 move, the concave blocks 23 will squeeze the arc surfaces 29 on the two limit plates 27. Under the elasticity of the second spring 28 and the rotation of the limit plates 27, the two limit plates 27 will move toward the middle direction so that the distance between the opposite sides of the two limit plates 27 is smaller than the inner diameter of the slide groove 25 on the connecting shaft 22. Then, the connecting shaft 22 continues to slide so that the slide groove 25 on the connecting shaft 22 is sleeved on the outer surface of one end of the two limit plates 27. Then, the concave block 23 is released, and the first spring 24 is released. 24 will restore the concave block 23 to its original position, causing it to lose the squeezing force on the curved surface 29 on the limit plate 27. In this way, under the elasticity of the second spring 28, the protrusion 210 on the limit plate 27 will fit with the inner surface of the slide groove 25, and then the connecting shaft 22 will continue to slide. When the positioning groove 26 inside the slide groove 25 passes the protrusion 210, the second spring 28 will cause the protrusion 210 to be stuck in the inside of the positioning groove 26, thereby completing the installation of the connecting shaft 22. When disassembling, press the two concave blocks 23 again to make the two concave blocks 23 squeeze the curved surfaces 29 on the two limit plates 27, so that the protrusion 210 on the limit plate 27 is separated from the positioning groove 26 inside the slide groove 25, and finally the connecting shaft 22 can be pulled out of the fixing tube 21, so that it is convenient to replace the connecting shaft 22 of different lengths.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick locking and fixing structure for upper and lower connectors of a power battery, comprising a first connector (1), characterized in that: A connecting member (2) is provided on one side of the first connector (1), and circular grooves (3) are provided at the middle positions of the front and rear surfaces above the first connector (1), an adjusting member (4) is rotatably connected between the two circular grooves (3), a first groove (5) is provided on the lower surface of the first connector (1), a second groove (6) is sleeved on the outer surface of the first groove (5), a second connector (7) is provided on the lower surface of the second groove (6), a plurality of card shafts (8) are uniformly connected inside the first groove (5), and the card shafts (8) are correspondingly provided with matching card grooves (9); The adjusting member (4) comprises two special-shaped plates (41), and opposite sides of the two special-shaped plates (41) are fixedly connected to a rotating shaft (42), and opposite ends of the two rotating shafts (42) are respectively embedded in two circular grooves (3) rotatably mounted on the first connector (1), and the outer surfaces of the two rotating shafts (42) are sleeved and rotatably connected to a torsion spring (43), and the two ends of the torsion spring (43) are respectively fixedly connected to a side surface of the special-shaped plate (41) and the outer surface of the first connector (1), and a handle (44) is fixedly connected between one end of the two special-shaped plates (41), and the lower surface of the handle (44) is located on the upper surface of the connecting member (2); The lower end of the clamping shaft (8) is clamped in the interior of the clamping slot (9), the lower interior of the clamping slot (9) is larger than the upper interior diameter, the lower end outer diameter of the clamping shaft (8) is larger than the upper end outer diameter, and the upper end outer diameter of the clamping shaft (8) is equal to the upper interior diameter of the clamping slot (9), and the clamping slot (9) is an elastic material component; The connecting member (2) comprises a fixed cylinder (21), one end of which is embedded with a connecting shaft (22) for sliding installation, and the upper and lower surfaces of the other end of the fixed cylinder (21) are embedded with a concave block (23) for sliding installation, a first spring (24) is fixedly connected between the inner upper surface of the concave block (23) and the upper surface of the fixed cylinder (21), a sliding groove (25) is provided on one end surface of the connecting shaft (22), and one side surface of the inner part of the fixed cylinder (21) is rotatably connected to two limit plates (27), two second springs (28) are fixedly connected between four corners of the opposite sides of the two limit plates (27), and an arc surface (29) is fixedly connected at the middle position of the opposite sides of the two limit plates (27).

2. A power battery upper and lower connector quick lock fixing structure according to claim 1, characterized in that: Concave spring sheets (101) are fixedly connected to the front and rear surfaces of the first connector (1) at positions above the special-shaped plate (41).

3. A power battery upper and lower connector quick lock fixing structure according to claim 1, characterized in that: When the shaped plate (41) is rotated to a 90-degree position, the upper surface of the second connector (7) is located within the range of the arc of rotation of the other end of the shaped plate (41), and when the lower surface of the handle (44) contacts the upper side of the connecting member (2), the upper surface of the second connector (7) is located on the lower side of the shaped plate (41).

4. A power battery upper and lower connector quick lock fixing structure according to claim 1, characterized in that: When the second spring (28) is at its original length, the distance between the opposite sides of the two limiting plates (27) is equal to the inner diameter of the slide groove (25).

5. The quick locking and fixing structure of the upper and lower connectors of a power battery according to claim 1, characterized in that: Positioning grooves (26) are provided on both inner side surfaces of the slide groove (25), and a protrusion (210) corresponding to the second spring (28) is fixedly connected to the opposite side of one end of the two limit plates (27).

6. A power battery upper and lower connector quick lock fixing structure according to claim 1, characterized in that: When the first spring (24) is at its original length, the two ends of the concave block (23) are located above the arc surface (29), and the two inner side surfaces of the concave block (23) are in sliding contact with the upper opposite sides of the two arc surfaces (29).

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