Matched low-voltage wire harness for lithium battery

Abstract

The invention provides a matched low-voltage wire harness for a lithium battery, and relates to the technical field of wire harnesses, the matched low-voltage wire harness comprises an electric wire, two ends of the electric wire are respectively provided with a socket end and a plug end, the socket end comprises a shell, two sliding rods are arranged between long side walls in the shell, and the two sliding rods are symmetrically and slidably provided with two middle sliding blocks together; the two ends of the first spring are connected with the shell and the middle sliding block respectively, a middle plate is arranged on the upper portion of the middle sliding block, the two ends of the middle plate are provided with two guide rods respectively, the guide rods are arranged on the long side wall in the shell in a sliding mode, the two ends of the second spring are connected with the middle plate and the shell respectively, and inclined buckling blocks used for buckling the middle sliding block are arranged at the two ends of the lower surface of the middle plate respectively. Guide connection assemblies are arranged on the two sides of the middle plate, each guide connection assembly comprises two door-shaped frames fixedly arranged on the middle sliding block, four elastic shafts are arranged on the door-shaped frames, the four elastic shafts are jointly provided with guide pieces conducted with a plug of the lithium battery, a transverse plate is arranged between the long side walls in the shell and located on the upper portions of the door-shaped frames, an insertion core is arranged in the transverse plate in a sliding mode, and the insertion core is connected with the plug of the lithium battery. And a hook plate for driving the middle plate to move is arranged at the upper end. When the socket end is connected with a plug of a lithium battery, the door-shaped frame with the guide piece is tightly attached to the plug of the lithium battery, and then the door-shaped frame is conducted with an electric wire through the wire, so that the guide piece and the plug of the lithium battery are prevented from being damaged due to friction.

Description

Technical Field

[0001] The present invention relates to the technical field of wire harness pressing, and more specifically, it relates to a low-voltage wire harness for supporting lithium batteries. Background Art

[0002] The low-voltage wire harness for supporting lithium batteries refers to a component that forms a connection circuit by bundling a wire harness after connecting a connector to a wire and cable, and then molding an insulator outside or adding a metal housing, etc. The main function of this component is to transmit the electrical energy stored in the battery. Since a lithium battery generally has positive and negative electrodes, two conductive electrodes are correspondingly provided on its surface. Therefore, the supporting low-voltage wire harness needs to accurately establish a connection with these two conductive electrodes to ensure stable and efficient transmission of electrical energy.

[0003] In the prior art, the two ends of the low-voltage wire harness are divided into a plug end and a socket end. Usually, the same plug end as the low-voltage wire harness is reserved on the lithium battery. When performing the connection operation, the socket end of the low-voltage wire harness needs to be inserted into the plug end of the lithium battery to achieve the electrical connection between the two. In addition, to meet the requirements of different scenarios for the length of the wire harness, multiple groups of low-voltage wire harnesses can also be continuously connected to effectively increase the overall length of the wire harness. However, this connection method has an obvious drawback: during actual use, the socket and the plug need to be frequently inserted and pulled out, which will cause the friction plates between them to be continuously worn. As the degree of wear of the friction plates increases, their conductivity will gradually decrease, ultimately having an adverse impact on the conductive efficiency of the low-voltage wire harness. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a low-voltage wire harness for supporting lithium batteries.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions: A supporting low-voltage wire harness for a lithium battery, including a wire, with a socket end and a plug end respectively provided at both ends of the wire. The plug end includes a plug block connected to the wire. There are two plugs on the plug block, and the plugs are connected to the positive and negative conductors of the wire. There is an annular groove on the plug. The socket end includes a housing. One end of the wire close to the socket end is inserted into the top cover of the housing, and there are two jacks on the bottom of the housing. Between the long side walls inside the housing, there are two sliding rods. Two middle sliders are symmetrically and slidably arranged on the two sliding rods together. A first spring is sleeved outside the sliding rod, and the two ends of the first spring are respectively connected to the housing and the middle slider. There is a middle plate on the upper part of the middle slider. There are two guide rods respectively provided at both ends of the middle plate, and the guide rods are slidably arranged on the long side walls inside the housing. A second spring is sleeved on the guide rods, and the two ends of the second spring are respectively connected to the middle plate and the housing. There are inclined buckle blocks for buckling the middle slider respectively provided at both ends of the lower surface of the middle plate. There are guide connection components on both sides of the middle plate. The guide connection components include two gantry frames fixedly arranged on the middle slider. There are four elastic shafts on the gantry frames, and a conducting piece that conducts with the plug of the lithium battery is provided on the four elastic shafts together. A cross plate is provided between the long side walls inside the housing and above the gantry frames. A core is slidably arranged in the cross plate. A third spring is sleeved outside the core, and the two ends of the third spring are respectively connected to the bottom of the core and the cross plate. A hook plate for driving the middle plate to move is provided at the upper end of the core. Conducting wires are respectively connected between the conducting pieces of the two groups of guide connection components and the positive and negative conductors of the wire.

[0006] As a preferred technical solution of the present invention, on the side of the two gantry frames of the two groups of guide connection components where the core is located, there is a lock plate. There is an arc-shaped lock opening on the lock plate for inserting into the annular groove of the lithium battery plug. Chamfered inclined surfaces are provided on the side surfaces of the lock plate on both sides of the arc-shaped lock opening.

[0007] As a preferred technical solution of the present invention, unlocking plates are provided on both of the two gantry frames of the guide connection components; on both short side walls of the housing, there are sliding buttons. A middle rod is provided in the middle of the button. A double-headed plate is provided at the end of the middle rod. A fourth spring is sleeved outside the middle rod, and the two ends of the fourth spring are respectively connected to the housing and the double-headed plate. Wedge blocks for driving the unlocking plate are provided at both ends of the double-headed plate; a triangular frame for driving the chamfered inclined surface is also provided at the upper end of the core.

[0008] As a preferred technical solution of the present invention, the outside of the button is in an uneven shape.

[0009] As a preferred technical solution of the present invention, a sealing ring is provided on the outer side surface of the bottom of the housing.

[0010] As a preferred technical solution of the present invention, rings are rotatably provided at both jacks at the bottom of the housing, and the rings are concentric with the jacks. A cleaning brush is provided inside the rings, a large gear is provided outside the rings, a small gear is meshed beside the large gear, the small gear is fixedly provided on a rotating shaft, and the rotating shaft is rotatably provided at the bottom of the housing. An inclined gear is provided at the upper end of the rotating shaft, and an inclined rack is meshed beside the inclined gear. The inclined rack is fixedly provided on a triangular frame.

[0011] As a preferred technical solution of the present invention, an arc-shaped slideway is provided on the outer circle of the wire at the top cover of the housing. A protection cylinder is slidably provided in the arc-shaped slideway. Two sliding plates are hinged at the lower end of the protection cylinder. A chute is provided at the lower end of the sliding plate. A support plate is provided inside the top cover of the housing. The lower end of the support plate forms a sliding fit with the chute, and the sliding plate forms a sliding fit with the upper end of the sliding connecting plate. The lower end of the sliding connecting plate is hinged with the upper end of a hinge seat. The hinge seat is fixedly provided at the top of the triangular frame.

[0012] As a preferred technical solution of the present invention, the upper end of the protection cylinder is in an arc shape.

[0013] The beneficial effects of the present invention compared with the prior art are as follows:

[0014] 1. When the socket end of the present invention is connected to the plug of the lithium battery, the plug of the lithium battery drives the plug core to move upward along the cross plate. The lower plane of the hook plate contacts the middle plate and drives the middle plate to move upward to the upper position. The second spring is compressed, so that the inclined buckle block is separated from the middle slider. The first spring provides elastic force, and the two middle sliders slide towards the middle along the slide rod at the same time. The middle slider drives the portal frame to move towards the middle. The portal frame drives the guide piece to closely adhere to the plug of the lithium battery, and then is conducted with the wire through the wire, so that the connection of the wire harness and the lithium battery can be completed, avoiding the friction between the guide piece and the plug of the lithium battery and preventing the guide piece and the plug of the lithium battery from being damaged due to friction.

[0015] 2. When the socket end of the present invention is connected to the plug of the lithium battery, the arc-shaped lock opening of the lock plate driven by the portal frame is inserted into the ring groove on the plug of the lithium battery, so that the locking between the plug of the lithium battery and the socket end can be completed.

[0016] 3. When the socket end of the present invention is connected to the plug of the lithium battery, the sealing ring contacts the surface of the lithium battery and is compressed. Therefore, the sealing ring can play a sealing role, avoiding dust and water from entering the inside of the housing from the jack and improving the protection performance of the wire harness.

[0017] 4. When the socket end of the present invention is connected to the plug of the lithium battery, the plug of the lithium battery drives the plug core to move upward along the cross plate. The plug core drives the triangular frame and the inclined rack to move upward synchronously. The inclined rack drives the inclined gear to rotate. The inclined gear drives the rotating shaft and the small gear to rotate. The small gear drives the large gear and the ring to rotate. Therefore, the cleaning brush rotates around the plug of the lithium battery, that is, the plug of the lithium battery can be cleaned, improving the conductivity between the plug of the lithium battery and the guide piece.

[0018] 5. The socket end of the present invention is not connected to the lithium battery, and the protective cylinder automatically moves upward, so that the protective cylinder can sleeve the wire, thus the protective cylinder can prevent the connection part of the wire and the housing of the socket end from being repeatedly folded, and avoid damage to the connection part of the wire and the housing of the socket end; when the socket end is connected to the plug of the lithium battery, the protective cylinder automatically shrinks into the interior of the housing, so the protective cylinder no longer sleeves the wire, which is convenient for wiring and arranging the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a supporting low-voltage wire harness for a lithium battery according to the present invention.

[0020] Figure 2 It is a schematic structural diagram of the plug block of the present invention.

[0021] Figure 3 It is a schematic structural diagram of the interior of the housing of the present invention.

[0022] Figure 4 It is a schematic structural diagram of the installation of the conduction component of the present invention.

[0023] Figure 5 It is a schematic structural diagram of the installation of the middle plate of the present invention.

[0024] Figure 6 It is a schematic structural diagram of the conduction component of the present invention.

[0025] Figure 7 It is a schematic structural diagram of the button of the present invention.

[0026] Figure 8 It is a schematic structural diagram of the installation of the ring of the present invention.

[0027] Figure 9 It is a schematic structural diagram of the installation of the sealing ring of the present invention.

[0028] Figure 10 It is a schematic exploded structural diagram of the housing and the protective cylinder of the present invention.

[0029] Figure 11 It is a schematic structural diagram of the installation of the protective cylinder of the present invention.

[0030] Reference numerals: 1 - wire; 2 - plug block; 3 - plug; 301 - annular groove; 4 - housing; 401 - jack; 402 - arc-shaped slideway; 5 - slide bar; 6 - middle slider; 7 - first spring; 8 - middle plate; 9 - guide rod; 10 - second spring; 11 - inclined latch block; 12 - portal frame; 13 - elastic shaft; 14 - guide piece; 15 - wire; 16 - cross plate; 17 - insert core; 18 - third spring; 19 - hook plate; 20 - lock plate; 2001 - arc-shaped lock port; 2002 - chamfered inclined surface; 21 - unlocking plate; 22 - button; 23 - middle rod; 24 - double-headed plate; 25 - fourth spring; 26 - wedge block; 27 - tripod; 28 - ring; 29 - cleaning brush; 30 - large gear; 31 - small gear; 32 - rotating shaft; 33 - helical gear; 34 - helical rack; 35 - sealing ring; 36 - protective cylinder; 37 - sliding plate; 3701 - chute; 38 - support plate; 39 - sliding connecting plate; 40 - hinge seat. Detailed implementation manner

[0031] In the present invention, unless otherwise stated, the directions such as "upper and lower" are generally in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left and right" are generally in the left and right shown in the drawings; "inside and outside" refer to the inside and outside of the contour of each component itself, but the above direction terms are not used to limit the present invention.

[0032] Embodiment 1: Please refer to Figures 1-11 The structural schematic diagram, the present invention provides the following technical solutions: A supporting low-voltage wire harness for a lithium battery, including a wire 1, both ends of the wire 1 are respectively provided with a socket end and a plug end, the plug end includes a plug block 2 connected to the wire 1, two plugs 3 are provided on the plug block 2, the plugs 3 are connected to the positive and negative wires of the wire 1, an annular groove 301 is provided on the plug 3, the socket end includes a housing 4, one end of the wire 1 close to the socket end is inserted into the top cover of the housing 4, and there are two jacks 401 on the bottom of the housing 4.

[0033] Specifically, the lithium battery is provided with a plug identical to the plug 3, that is, the plug of the lithium battery is provided with a corresponding annular groove, and connecting the two jacks 401 of the housing 4 with the plug of the lithium battery can complete the connection with the lithium battery.

[0034] Two slide bars 5 are provided between the inner long side walls of the housing 4, two middle sliders 6 are symmetrically and slidably arranged on the two slide bars 5 together, a first spring 7 is sleeved outside the slide bars 5, and both ends of the first spring 7 are respectively connected to the housing 4 and the middle slider 6. The upper part of the middle slider 6 is provided with a middle plate 8, two guide rods 9 are respectively provided at both ends of the middle plate 8, the guide rods 9 are slidably arranged on the inner long side walls of the housing 4, a second spring 10 is sleeved on the guide rods 9, and both ends of the second spring 10 are respectively connected to the middle plate 8 and the housing 4. Inclined latch blocks 11 for buckling the middle slider 6 are respectively provided at both ends of the lower surface of the middle plate 8.

[0035] Specifically, when the socket end of the wire 1 is not connected to the plug, the middle plate 8 is in the lower position, and the inclined buckle block 11 locks the middle slider 6. At this time, the first spring 7 is in a compressed state. When the middle plate 8 rises to the upper position, the second spring 10 is compressed, and the inclined buckle block 11 separates from the middle slider 6. The first spring 7 provides elastic force, and the two middle sliders 6 slide towards the middle along the slide bar 5 simultaneously. When the middle plate 8 is in the lower position and the two middle sliders 6 move outwards, the middle slider 6 contacts the inclined surface of the inclined buckle block 11, driving the inclined buckle block 11 and the middle plate 8 to move upwards. After the middle slider 6 passes the inclined buckle block 11, the second spring 10 provides elastic force to make the middle plate 8 in the lower position state, and the inclined buckle block 11 locks the middle slider 6 again.

[0036] Guide connection components are provided on both sides of the middle plate 8. The guide connection components include two gantry frames 12 fixedly arranged on the middle slider 6. Four elastic shafts 13 are arranged on the gantry frame 12. A guide piece 14 that conducts electricity with the plug of the lithium battery is jointly arranged on the four elastic shafts 13. The middle part of the guide piece 14 is in an arc shape. A cross plate 16 is arranged between the inner long side walls of the housing 4 and above the gantry frame 12. A core 17 slides in the cross plate 16. A third spring 18 is sleeved outside the core 17. The two ends of the third spring 18 are respectively connected to the bottom of the core 17 and the cross plate 16. A hook plate 19 for driving the middle plate 8 to move is arranged at the upper end of the core 17; Conductive wires 15 are connected between the positive and negative conductive wires of the wire 1 and the guide pieces 14 of the two groups of guide connection components respectively.

[0037] Specifically, when the socket end of the wire 1 is connected to the plug of the lithium battery, the plug of the lithium battery drives the core 17 to move upwards along the cross plate 16, and the third spring 18 is compressed. When the plug is completely inserted into the jack 401, the lower plane of the hook plate 19 contacts the middle plate 8 and drives the middle plate 8 to move upwards, separating the inclined buckle block 11 from the middle slider 6, that is, the two middle sliders 6 move towards the middle along the slide bar 5. The middle slider 6 drives the gantry frame 12 to move towards the middle, making the guide piece 14 contact and connect with the plug of the lithium battery, and the elastic shaft 13 is compressed, making the guide piece 14 closely adhere to the plug of the lithium battery.

[0038] Locking plates 20 are arranged on the sides of the two gantry frames 12 of the two groups of guide connection components located on the side of the core 17. An arc-shaped locking opening 2001 for inserting into the ring groove of the lithium battery plug is arranged on the locking plate 20. Chamfered inclined surfaces 2002 are arranged on the side surfaces of the locking plate 20 on both sides of the arc-shaped locking opening 2001.

[0039] Specifically, when the socket end of the wire 1 is connected to the plug of the lithium battery, the ring groove on the lithium battery plug is aligned with the locking plate 20. Therefore, when the gantry frame 12 moves towards the middle, the arc-shaped locking opening 2001 of the locking plate 20 is inserted into the ring groove of the lithium battery plug, that is, the connection between the lithium battery plug and the socket end can be completed. The chamfered inclined surface 2002 on the locking plate 20 facilitates the insertion of the arc-shaped locking opening 2001 into the ring groove.

[0040] On both of the two gantry frames 12 of the guiding and connecting assembly, there is an unlocking plate 21 provided; on both of the two short side walls of the housing 4, there is a button 22 slidably provided. In the middle of the button 22, there is a middle rod 23. At the end of the middle rod 23, there is a double-headed plate 24. Outside the middle rod 23, there is a fourth spring 25 sleeved. The two ends of the fourth spring 25 are respectively connected to the housing 4 and the double-headed plate 24. At both ends of the double-headed plate 24, there are wedge blocks 26 for driving the unlocking plate 21; at the upper end of the core 17, there is also a triangular frame 27 for driving the chamfered inclined surface 2002.

[0041] Specifically, when the socket end of the wire 1 is connected to the plug of the lithium battery, the gantry frame 12 moves the unlocking plate 21 to a position aligned with the inclined surface of the wedge block 26. When it is necessary to separate the socket end of the wire 1 from the plug of the lithium battery, press both buttons 22 simultaneously, so that the two buttons 22 move towards the middle inside the housing 4 at the same time. The fourth spring 25 is stretched. Power is transmitted through the middle rod 23. The button 22 drives the double-headed plate 24 and the wedge block 26 to move towards the unlocking plate 21. After the inclined surface of the wedge block 26 contacts the unlocking plate 21, the wedge block 26 drives the unlocking plate 21 to move outwards. The unlocking plate 21 drives the gantry frame 12 and the lock plate 20 to move outwards synchronously, that is, the arc-shaped locking opening 2001 is separated from the annular groove on the lithium battery plug, and the socket end of the wire 1 can be pulled out from the plug of the lithium battery. During this process, the third spring 18 provides elastic force, so that the core 17 moves back along the cross plate 16 to the lower position again. The core 17 drives the triangular frame 27 to move downwards synchronously. The two inclined surfaces of the triangular frame 27 contact the chamfered inclined surface 2002, overcome the elastic force of the first spring 7, and drive the lock plate 20 and the gantry frame 12 to move outwards. The gantry frame 12 drives the middle slider 6 to move outwards. At the same time, the hook plate 19 is separated from the middle plate 8. The second spring 10 provides elastic force, so that the middle plate 8 moves back to the lower position again, and the inclined locking block 11 re-catches the middle slider 6.

[0042] The outer side of the button 22 is in an uneven shape, increasing the friction between the button 22 and the finger, facilitating the operator to press the button 22.

[0043] On the outer side surface of the bottom of the housing 4, there is a sealing ring 35. When the socket end of the wire 1 is connected to the plug of the lithium battery, the sealing ring 35 contacts the surface of the lithium battery, and the sealing ring 35 is compressed. Therefore, the sealing ring 35 can play a sealing role, avoiding dust and water from entering the inside of the housing 4 from the jack 401, and improving the protection performance.

[0044] The working principle of a matching low-voltage wire harness for a lithium battery provided by the present invention is as follows:

[0045] When the socket end of the wire 1 is not connected to the plug, the middle plate 8 is in the lower position, the inclined locking block 11 catches the middle slider 6. At this time, the first spring 7 is in a compressed state, and at the same time, the core 17 is in the lower position.

[0046] When the socket end of the wire 1 is connected to the plug of the lithium battery, the plug of the lithium battery drives the core 17 to move upward along the cross plate 16, and the third spring 18 is compressed. When the plug is completely inserted into the jack 401, the sealing ring 35 contacts the surface of the lithium battery, and the sealing ring 35 is compressed. Therefore, the sealing ring 35 can play a sealing role to prevent dust and water from entering the inside of the housing 4 from the jack 401, improving the protection of the wire harness. At the same time, the lower end plane of the hook plate 19 contacts the middle plate 8 and drives the middle plate 8 to move upward to the upper position, compressing the second spring 10, separating the inclined latch 11 from the middle slider 6. The first spring 7 provides elastic force, and the two middle sliders 6 slide towards the middle along the slide bar 5 at the same time. The middle slider 6 drives the portal frame 12 to move towards the middle. The chamfered inclined plane 2002 first contacts the annular groove on the plug of the lithium battery, facilitating the insertion of the arc-shaped lock port 2001 of the lock plate 20 carried by the portal frame 12 into the annular groove on the plug of the lithium battery, thus completing the locking between the plug of the lithium battery and the socket end. During this process, the elastic shaft 13 is compressed, and the portal frame 12 drives the guide piece 14 to closely adhere to the plug of the lithium battery, and then conducts electricity with the wire 1 through the wire 15, completing the connection between the wire harness and the lithium battery, avoiding friction between the guide piece 14 and the plug of the lithium battery, and preventing damage to the guide piece 14 and the plug of the lithium battery due to friction. When the portal frame 12 moves towards the middle, the portal frame 12 drives the unlocking plate 21 to move to a position aligned with the inclined plane of the wedge block 26

[0047] When it is necessary to separate the socket end of the wire 1 from the plug of the lithium battery, press the two buttons 22 simultaneously, causing the two buttons 22 to move towards the middle inside the housing 4 at the same time, stretching the fourth spring 25. The power is transmitted through the middle rod 23, and the buttons 22 drive the double-headed plate 24 and the wedge block 26 to move towards the unlocking plate 21. After the inclined plane of the wedge block 26 contacts the unlocking plate 21, the wedge block 26 drives the unlocking plate 21 to move outward. The unlocking plate 21 drives the portal frame 12 and the lock plate 20 to move outward synchronously, that is, the arc-shaped lock port 2001 is separated from the annular groove on the plug of the lithium battery, and the socket end of the wire 1 can be pulled out from the plug of the lithium battery. During this process, the third spring 18 provides elastic force, causing the core 17 to move back to the lower position along the cross plate 16 again, and the core 17 drives the hook plate 19 to move downward synchronously. The lower end plane of the hook plate 19 is separated from the middle plate 8, and the second spring 10 provides elastic force, causing the middle plate 8 and the inclined latch 11 to move back to the lower position; at the same time, the core 17 drives the tripod 27 to move downward synchronously. The two inclined planes of the tripod 27 contact the chamfered inclined plane 2002, driving the lock plate 20 and the portal frame 12 to move outward. The portal frame 12 drives the middle slider 6 to move outward. The middle slider 6 contacts the inclined plane of the inclined latch 11, driving the inclined latch 11 and the middle plate 8 to move upward. When the middle slider 6 passes the inclined latch 11, the second spring 10 provides elastic force, causing the middle plate 8 and the inclined latch 11 to be in the lower position state, and the inclined latch 11 re-catches the middle slider 6.

[0048] Embodiment 2: On the basis of the specific Embodiment 1, the difference in this embodiment is that:

[0049] At both of the two jacks 401 at the bottom of the housing 4, a ring 28 is rotatably provided, and the ring 28 is concentric with the jack 401. A cleaning brush 29 is provided inside the ring 28, and a large gear 30 is provided on the outer side of the ring 28. A small gear 31 is meshed beside the large gear 30. The small gear 31 is fixedly provided on a rotating shaft 32, and the rotating shaft 32 is rotatably provided at the bottom of the housing 4. An inclined gear 33 is provided at the upper end of the rotating shaft 32, and an inclined rack 34 is meshed beside the inclined gear 33. The inclined rack 34 is fixedly provided on the tripod 27.

[0050] Specifically, when the socket end of the electric wire 1 is connected to the plug of the lithium battery, the plug of the lithium battery drives the core 17 to move upward along the cross plate 16. The core 17 drives the tripod 27 and the inclined rack 34 to move upward synchronously. The inclined rack 34 drives the inclined gear 33 to rotate. The inclined gear 33 drives the rotating shaft 32 and the small gear 31 to rotate. The small gear 31 drives the large gear 30 and the ring 28 to rotate. Therefore, the cleaning brush 29 rotates around the plug of the lithium battery, that is, the plug of the lithium battery can be cleaned, and the conductivity between the plug of the lithium battery and the guide piece 14 can be improved.

[0051] Embodiment Three: On the basis of the specific Embodiment Two, the difference of this embodiment lies in:

[0052] Considering that when storing the wire harness, it is necessary to avoid damage to the connection between the electric wire 1 and the housing 4 at the socket end due to repeated folding. An arc-shaped slideway 402 is provided on the top cover of the housing 4 around the outer circle of the electric wire 1. A protective cylinder 36 is slidably provided in the arc-shaped slideway 402. Two sliding plates 37 are hinged at the lower end of the protective cylinder 36. A sliding groove 3701 is provided at the lower end of the sliding plate 37. A support plate 38 is provided on the inner side of the top cover of the housing 4. The low end of the support plate 38 forms a sliding fit with the sliding groove 3701, and the sliding plate 37 forms a sliding fit with the upper end of the sliding connecting plate 39. The lower end of the sliding connecting plate 39 is hinged to the upper end of a hinge seat 40. The hinge seat 40 is fixedly provided on the top of the tripod 27. The upper end of the protective cylinder 36 is in an arc shape to avoid scratching the electric wire 1.

[0053] Specifically, when the socket end of the electric wire 1 is separated from the lithium battery, the core 17 drives the tripod 27 to move to the lower position. Through the transmission of power by the sliding connecting plate 39, the sliding plate 37 is rotated. The sliding groove 3701 slides at the lower end of the support plate 38, and the upper end of the sliding plate 37 moves upward. The sliding plate 37 drives the protective cylinder 36 to move upward, that is, the protective cylinder 36 can cover the electric wire 1. Therefore, the protective cylinder 36 can prevent the connection between the electric wire 1 and the housing 4 at the socket end from being repeatedly folded, and avoid damage to the connection between the electric wire 1 and the housing 4 at the socket end. When the socket end of the electric wire 1 is connected to the lithium battery, the core 17 drives the tripod 27 to move to the upper position. According to the reverse process of the above principle, the protective cylinder 36 moves downward, and the protective cylinder 36 shrinks into the interior of the housing 4. Therefore, the protective cylinder 36 no longer covers the electric wire 1, which is convenient for wiring and arranging the electric wire 1.

[0054] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all covered by the protection scope of the present invention.

Claims

1. A low-voltage wire harness for a lithium battery, comprising a wire, characterized in that: Both ends of the wire are respectively provided with a socket end and a plug end. The plug end includes a plug block connected to the wire. There are two plugs on the plug block. The plugs are connected to the positive and negative wires of the wire. There is a ring groove on the plug. The socket end includes a housing. One end of the wire close to the socket end is inserted into the top cover of the housing. There are two jacks on the bottom of the housing; Between the inner long side walls of the housing, there are two sliding rods. Two middle sliders are symmetrically and slidably arranged on the two sliding rods together. A first spring is sleeved outside the sliding rods. Two ends of the first spring are respectively connected to the housing and the middle slider. There is a middle plate on the upper part of the middle slider. There are two guide rods at both ends of the middle plate respectively. The guide rods are slidably arranged on the inner long side walls of the housing. A second spring is sleeved on the guide rods. Two ends of the second spring are respectively connected to the middle plate and the housing. There are inclined buckle blocks for buckling the middle slider at both ends of the lower surface of the middle plate; There are guide connection components on both sides of the middle plate. The guide connection components include two portal frames fixedly arranged on the middle slider. There are four elastic shafts on the portal frames. A guide piece electrically connected to the plug of the lithium battery is arranged on the four elastic shafts together. A cross plate is arranged between the inner long side walls of the housing and above the portal frames. A core is slidably arranged in the cross plate. A third spring is sleeved outside the core. Two ends of the third spring are respectively connected to the bottom of the core and the cross plate. There is a hook plate for driving the middle plate to move at the upper end of the core; Wires are respectively connected between the guide pieces of the two groups of guide connection components and the positive and negative wires of the wire.

2. The matching low-voltage wire harness for a lithium battery according to claim 1, characterized in that: Lock plates are arranged on the sides of the two portal frames of the two groups of guide connection components and opposite to the core. There is an arc-shaped lock opening for inserting into the ring groove of the lithium battery plug on the lock plate. Chamfered inclined surfaces are arranged on the sides of the lock plate on both sides of the arc-shaped lock opening.

3. The matching low-voltage wire harness for a lithium battery according to claim 2, characterized in that: Unlocking plates are arranged on the two portal frames of the guide connection component; Keys are slidably arranged on both short side walls of the housing. There is a middle rod in the middle of the key. There is a double-headed plate at the end of the middle rod. A fourth spring is sleeved outside the middle rod. Two ends of the fourth spring are respectively connected to the housing and the double-headed plate. Wedge blocks for driving the unlocking plate are arranged at both ends of the double-headed plate; A triangular frame for driving the chamfered inclined surface is also arranged at the upper end of the core.

4. The low-voltage harness for a lithium battery according to claim 3, characterized in that: The outer side of the key is in an uneven shape.

5. The matching low-voltage wire harness for a lithium battery according to claim 4, wherein: A sealing ring is arranged on the outer side surface of the bottom of the housing.

6. The matching low-voltage wire harness for a lithium battery according to claim 5, characterized in that: Rings are rotatably arranged at the two jacks at the bottom of the housing, and the rings are concentric with the jacks. A cleaning brush is arranged inside the rings. A large gear is arranged on the outer side of the rings. A small gear is meshed beside the large gear. The small gear is fixedly arranged on a rotating shaft, and the rotating shaft is rotatably arranged at the bottom of the housing. An inclined gear is arranged at the upper end of the rotating shaft. An inclined rack is meshed beside the inclined gear. The inclined rack is fixedly arranged on the triangular frame.

7. The low-voltage wire harness for a lithium battery according to claim 6, characterized in that: An arc-shaped slideway is arranged on the outer circle of the wire on the top cover of the housing. A protective cylinder is slidably arranged in the arc-shaped slideway. Two slide plates are hinged at the lower end of the protective cylinder. There is a chute at the lower end of the slide plate. A support plate is arranged on the inner side of the top cover of the housing. The low end of the support plate forms a sliding fit with the chute, and the slide plate forms a sliding fit with the upper end of the sliding connecting plate. The lower end of the sliding connecting plate is hinged to the upper end of a hinge seat. The hinge seat is fixedly arranged on the top of the triangular frame.

8. A supporting low-voltage wire harness for a lithium battery according to claim 7, characterized in that: The upper end of the protective cylinder is in an arc shape.

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