Vehicle-mounted charging wire telescopic storage device

Abstract

A vehicle-mounted charging wire telescopic storage device comprises a front cover and a rear cover, a storage bin is defined by the front cover and the rear cover, a winding assembly and a circuit board assembly are arranged in the storage bin, the winding assembly comprises a winding disc and a winding shaft, the winding disc is provided with a first disc face and a second disc face, the first disc face faces the front cover, and the second disc face faces the second cover. The first disc face faces the rear cover, the second disc face faces the rear cover, the winding shaft is arranged in the disc face center of the first disc face, the charging wire is wound with the winding shaft as the axis, the second disc face is provided with an annular groove, the rear cover is provided with a T-shaped groove used for assembling a T-shaped movable part, one end of the T-shaped movable part is clamped into the T-shaped groove, and the other end of the T-shaped movable part is clamped into the annular groove. When the charging wire stretches out and draws back, the charging wire drives the wire spool to rotate, meanwhile, the T-shaped movable part can move relative to the annular groove, and the vehicle-mounted charging wire stretching and containing device can be automatically clamped after being stretched, can be automatically wound after being used, and is convenient to use and neat in containing.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted charging cables, and particularly relates to a telescopic storage device for vehicle-mounted charging cables. Background Art

[0002] The application of vehicle-mounted chargers in automobiles is an extended function born from the cigarette lighter interface of automobiles. Currently, in the industry, vehicle chargers are used to transfer charging cables from the cigarette lighter interface for the convenience of drivers and passengers in the front row of the vehicle. The circuit is branched from the cigarette lighter to expand multiple interfaces to the rear row of seats to transfer charging cables for multiple passengers in the rear row of the vehicle. However, the charging cables of such vehicle-mounted charging devices usually do not have a telescopic storage device. After the charging cables are used up, they cannot be automatically rewound. The exposed multiple charging cables make the interior of the vehicle look messy, and the charging cables may also become entangled and knotted, making them inconvenient to use. There is an urgent need for a telescopic storage device for vehicle-mounted charging cables to solve the above problems. Summary of the Utility Model

[0003] In view of this, a telescopic storage device for vehicle-mounted charging cables that is convenient to use, automatically locks in place after extension, and can be automatically rewound after use is provided.

[0004] . A telescopic storage device for vehicle-mounted charging cables, comprising a front cover and a rear cover. The front cover and the rear cover enclose to form a storage chamber. A winding component and a circuit board component are arranged in the storage chamber. The winding component includes a winding disc and a winding shaft. The winding disc has a first disc surface and a second disc surface. The first disc surface faces the front cover, and the second disc surface faces the rear cover. The winding shaft is arranged at the center of the disc surface of the first disc surface. The charging cable is wound around the winding shaft as the axis. A ring-shaped groove is arranged on the second disc surface. A T-shaped groove is arranged on the rear cover for assembling a T-shaped movable part. One end of the T-shaped movable part is clamped into the T-shaped groove, and the other end is clamped into the ring-shaped groove. When the charging cable expands and contracts, the winding disc is driven to rotate, and at the same time, the T-shaped movable part can move relative to the ring-shaped groove.

[0005] Further, the ring-shaped groove includes a first ring guide groove, a second ring guide groove, a blocking part, and a guiding part. The first ring guide groove is an outer ring groove, and the second ring guide groove is an inner ring groove. A hook part and two openings are arranged on the annular wall between the first ring guide groove and the second ring guide groove. The two openings are respectively distributed on the left and right sides of the hook part. The arched part of the hook part and an adjacent opening form the guiding part, and the bent part of the hook part and the other opening form the blocking part.

[0006] Furthermore, the T-shaped movable member can move inside the T-shaped groove so as to be able to switch between the first annular guide groove and the second annular guide groove. When the charging cable is retracted, the T-shaped movable member can enter the second annular guide groove from the first annular guide groove through the blocking portion. When the charging cable is stretched, the T-shaped movable member can enter the first annular guide groove from the second annular guide groove through the guiding portion.

[0007] Furthermore, the length direction of the T-shaped groove is substantially consistent with the radial direction of the annular groove, and the position of the T-shaped groove corresponds to the first annular guide groove and the second annular guide groove.

[0008] Further, the winding shaft and the winding disk are of an integrally formed structure or are connected as a whole, and the winding shaft can drive the winding disk to rotate when the charging cable is stretched or retracted.

[0009] Further, the winding assembly further includes a volute spring. The front cover includes a cut groove. One end of the volute spring is installed in the cut groove, and the other end is installed on the winding shaft.

[0010] Further, the circuit board assembly includes a first circuit board, a second circuit board, and a conductive elastic sheet. The first circuit board is disposed on the second disk surface, the second circuit board is disposed on the rear cover, and the first circuit board is electrically connected to the second circuit board through the conductive elastic sheet.

[0011] Furthermore, the conductive elastic sheet is a multi-path annular conductive elastic sheet, and each path of the conductive elastic sheet is separately electrically connected to the circuit lines in the first circuit board and the second circuit board to avoid short circuits.

[0012] Furthermore, the multi-path annular conductive elastic sheet is a multi-path annular elastic sheet arranged in the order of concentric circles. Each path of the annular elastic sheet has a plurality of uniformly distributed elastic contacts or contact points, and the plurality of elastic contacts or contact points on each path of the annular elastic sheet are correspondingly arranged radially.

[0013] Furthermore, a multi-path circular groove is provided at the center of the second disk surface to accommodate the first circuit board and the multi-path annular conductive elastic sheet, and the second circuit board is detachably connected to the rear cover.

[0014] Compared with the prior art, the utility model has at least the following beneficial effects: when the charging cable is stretched and contracted, the T-shaped movable part can relatively move inside the T-shaped groove along the groove length direction of the T-shaped groove. The T-shaped groove has two terminals. The terminal close to the center of the device is the inner terminal, and the terminal far from the center of the device is the outer terminal. The outer terminal corresponds to the first annular guide groove, and the inner terminal corresponds to the second annular guide groove. When the T-shaped movable part moves back and forth between the outer and inner terminals of the T-shaped groove, the T-shaped movable part can correspondingly switch back and forth between the first annular guide groove and the second annular guide groove. When the charging cable is pulled out a certain distance and then released, the T-shaped movable part moves relative to the annular groove and is caught in the blocking part from the first annular guide groove. At this time, the T-shaped movable part is correspondingly located in the middle of the outer and inner terminals of the T-shaped groove, and the charging cable is automatically locked. Then, slightly move the charging cable to make the T-shaped movable part enter the second annular guide groove from the blocking part again. At this time, the T-shaped movable part is correspondingly located at the inner terminal of the T-shaped groove, and the charging cable is automatically retracted. Compared with the traditional in-vehicle charging cable, this in-vehicle charging cable telescopic storage device can automatically lock the charging cable after it is extended and automatically retract it after use, which is convenient to use and tidy to store. Description of the Drawings

[0015] Figure 1 is a three-dimensional schematic diagram of an in-vehicle charging cable telescopic storage device according to an embodiment of the utility model.

[0016] Figure 2 is an exploded schematic diagram of an in-vehicle charging cable telescopic storage device according to an embodiment of the utility model.

[0017] Figure 3 is an exploded schematic diagram of an in-vehicle charging cable telescopic storage device according to an embodiment of the utility model in another direction.

[0018] Figure 4 is a schematic diagram of the annular groove and the T-shaped movable part of an in-vehicle charging cable telescopic storage device according to an embodiment of the utility model.

[0019] Figure 5 is a cross-sectional schematic diagram of the assembly of the T-shaped groove and the T-shaped movable part of an in-vehicle charging cable telescopic storage device according to an embodiment of the utility model.

[0020] Among them,

[0021] 1. Front cover; 11. Cutting groove; 2. Rear cover; 21. T-shaped groove; 22. T-shaped movable part; 3. Winding disc; 31. First disc surface; 32. Second disc surface; 4. Winding shaft; 5. Circuit board assembly; 6. Charging cable; 7. Annular groove; 71. First annular guide groove; 72. Second annular guide groove; 73. Blocking part; 74. Guide part; 75. Hook part; 8. Volute spring. Detailed Embodiment

[0022] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the protection scope of the present utility model.

[0023] Please refer to Figures 1 to 4 , which shows a telescopic storage device for a vehicle-mounted charging cable provided by an embodiment of the present utility model, including a front cover 1 and a rear cover 2. The front cover 1 and the rear cover 2 enclose to form a storage chamber. A winding component and a circuit board component 5 are arranged in the storage chamber. The winding component includes a winding disk 3 and a winding shaft 4. The winding disk 3 has a first disk surface 31 and a second disk surface 32. The first disk surface 31 faces the front cover 1, and the second disk surface 32 faces the rear cover 2. The winding shaft 4 is arranged at the center of the disk surface of the first disk surface 31. The charging cable 6 is wound around the winding shaft 4 as the axis. A circular groove 7 is arranged on the second disk surface 32. A T-shaped groove 21 is arranged on the rear cover 2 for assembling a T-shaped movable part 22. One end of the T-shaped movable part 22 is clamped into the T-shaped groove 21, and the other end is clamped into the circular groove 7. When the charging cable 6 expands and contracts, the winding disk 3 is driven to rotate, and at the same time, the T-shaped movable part 22 can move relative to the circular groove 7.

[0024] Specifically, the circular groove 7 includes a first annular guide groove 71, a second annular guide groove 72, a blocking part 73, and a guiding part 74. The first annular guide groove 71 is an outer ring groove, and the second annular guide groove 72 is an inner ring groove. A hook part 75 and two openings are arranged on the annular wall between the first annular guide groove 71 and the second annular guide groove 72. The two openings are respectively distributed on the left and right sides of the hook part 75. The arched part of the hook part 75 and an adjacent opening form the guiding part 74, and the bent part of the hook part 75 and the other opening form the blocking part 73.

[0025] More specifically, the T-shaped movable part 22 can move inside the T-shaped groove 21 so as to switch between the first annular guide groove 71 and the second annular guide groove 72. When the charging cable 6 contracts, the T-shaped movable part 22 can enter the second annular guide groove 72 from the first annular guide groove 71 through the blocking part 73. When the charging cable 6 stretches, the T-shaped movable part 22 can enter the first annular guide groove 71 from the second annular guide groove 72 through the guiding part 74.

[0026] More specifically, the groove length direction of the T-shaped groove 21 is basically the same as the radial direction of the circular groove 7, and the position of the T-shaped groove 21 corresponds to the first annular guide groove 71 and the second annular guide groove 72.

[0027] Specifically, the winding shaft 4 and the winding disc 3 are integrally formed structures or are connected as a whole. When the charging cable 6 is stretched or contracted, the winding shaft 4 can drive the winding disc 3 to rotate.

[0028] Specifically, the winding assembly further includes a volute spring 8. The front cover 1 includes a cut groove 11. One end of the volute spring 8 is installed in the cut groove 11, and the other end is installed on the winding shaft 4.

[0029] In some specific embodiments, when the charging cable 6 is pulled outwards, the charging cable 6 drives the annular groove 7 of the winding disc 3 to rotate counterclockwise through the winding shaft 4. Relatively speaking, the T-shaped movable member 22 moves clockwise in the first annular guide groove 71 relative to the annular groove 7. After releasing the hand, the charging cable 6 automatically contracts under the action of the restoring force of the volute spring 8. The charging cable 6 drives the annular groove 7 of the winding disc 3 to rotate clockwise through the winding shaft 4. At this time, relatively speaking, the T-shaped movable member 22 moves counterclockwise relative to the annular groove 7. When it contracts and moves a certain distance to the blocking portion 73, the T-shaped movable member 22 moves in the T-shaped groove 21. The T-shaped movable member 22 enters the blocking portion 73 from the first annular guide groove 71. The T-shaped movable member 22 is blocked by the blocking portion 73, and the T-shaped movable member 22 can no longer generate relative movement, that is, the annular groove 7 and the T-shaped movable member 22 are relatively stationary, and the charging cable 6 no longer retracts and automatically locks. When the charging cable 6 needs to be completely wound up after use, gently pull the charging cable 6 again to make the T-shaped movable member 22 enter the second annular guide groove 72 from the blocking portion 73. After being released from the block, the T-shaped movable member 22 continues to move counterclockwise relative in the second annular guide groove 72. Relatively, the annular groove 7 moves clockwise, and the charging cable 6 is wound up. The next time it is needed, pull out the charging cable 6 outwards again. The winding shaft 4 drives the winding disc 3 to rotate counterclockwise, and the T-shaped movable member 22 moves clockwise relative to the annular groove 7. At this time, when it moves a certain distance to the guiding portion 74, the T-shaped movable member 22 can enter the first annular guide groove 71 from the second annular guide groove 72 through the guiding portion 74 and continue to move clockwise in the first annular guide groove 71. In this way, the reciprocating cycle of stretching and contracting can be completed.

[0030] In some specific embodiments, the T-shaped movable member 22 is preferably a pin, and the pin cooperates with the T-shaped groove 21 for movement. The T-shaped movable member 22 can relatively move inside the T-shaped groove 21 along the groove length direction of the T-shaped groove 21. The T-shaped groove 21 has two terminals. The terminal close to the center of the device is the inner terminal, and the terminal far from the center of the device is the outer terminal. The outer terminal corresponds to the first annular guide groove 71, and the inner terminal corresponds to the second annular guide groove 72. When the T-shaped movable member 22 moves back and forth between the outer and inner terminals of the T-shaped groove 21, the T-shaped movable member 22 can correspondingly switch back and forth between the first annular guide groove 71 and the second annular guide groove 72. When the charging cable 6 is in the clamped position, the T-shaped movable member 22 is located at the blocking portion 73. At this time, the T-shaped movable member 22 is correspondingly in the middle position between the outer and inner terminals of the T-shaped groove 21. Slightly move the charging cable 6 to make the T-shaped movable member 22 enter the second annular guide groove 72 from the blocking portion 73. At this time, the T-shaped movable member 22 is correspondingly at the inner terminal of the T-shaped groove 21.

[0031] Specifically, the circuit board assembly 5 includes a first circuit board, a second circuit board, and a conductive elastic sheet. The first circuit board is disposed on the second disk surface 32, the second circuit board is disposed on the rear cover 2, and the first circuit board is electrically connected to the second circuit board through the conductive elastic sheet.

[0032] More specifically, the conductive elastic sheet is a multi-path annular conductive elastic sheet, and each path of the conductive elastic sheet is independently electrically connected to the circuit lines in the first circuit board and the second circuit board to avoid short circuits.

[0033] More specifically, the multi-path annular conductive elastic sheets are multi-path annular elastic sheets arranged in the order of concentric circles. Each path of the annular elastic sheet has a plurality of uniformly distributed elastic contacts or contact points, and the plurality of elastic contacts or contact points on each path of the annular elastic sheet are correspondingly arranged radially. More specifically, each path of the annular elastic sheet extends the elastic contact or contact point in the direction towards the second circuit board.

[0034] More specifically, a multi-path circular groove is provided at the center of the second disk surface 32 to accommodate the first circuit board and the multi-path annular conductive elastic sheets, and the second circuit board is detachably connected to the rear cover 2.

[0035] In summary, when the charging cable 6 is stretched and contracted, the T-shaped movable member 22 can relatively move along the groove length direction of the T-shaped groove 21 inside the T-shaped groove 21. The T-shaped groove 21 has two terminals. The terminal close to the center of the device is the inner terminal, and the terminal far from the center of the device is the outer terminal. The outer terminal corresponds to the first annular guide groove 71, and the inner terminal corresponds to the second annular guide groove 72. When the T-shaped movable member 22 moves back and forth between the outer and inner terminals of the T-shaped groove 21, the T-shaped movable member 22 can correspondingly switch back and forth between the first annular guide groove 71 and the second annular guide groove 72. When the charging cable 6 is released after being pulled out for a certain distance, the T-shaped movable member 22 moves relative to the annular groove 7 and snaps into the blocking portion 73. At this time, the T-shaped movable member 22 is correspondingly located at the middle position between the outer and inner terminals of the T-shaped groove 21, and the charging cable 6 is automatically locked. By slightly moving the charging cable 6 again, the T-shaped movable member 22 enters the second annular guide groove 72 from the blocking portion 73. At this time, the T-shaped movable member 22 is correspondingly located at the inner terminal of the T-shaped groove 21, and the charging cable 6 is automatically retracted. Compared with the traditional in-vehicle charging cable, this in-vehicle charging cable telescopic storage device enables the charging cable 6 to be automatically locked after being extended and automatically retracted after use, which is convenient to use and tidy for storage.

[0036] It should be noted that the present utility model is not limited to the above embodiments. According to the creative spirit of the present utility model, those skilled in the art can also make other changes, and these changes made based on the creative spirit of the present utility model should be included within the scope of protection required by the present utility model.

Claims

1. A telescopic storage device for a vehicle charging cable, comprising a front cover and a rear cover, the front cover and the rear cover enclosing to form a storage bin, and a wire winding assembly and a circuit board assembly are arranged in the storage bin, characterized in that, The winding assembly includes a winding disk and a winding shaft. The winding disk has a first disk surface and a second disk surface. The first disk surface faces the front cover, and the second disk surface faces the rear cover. The winding shaft is provided at the center of the disk surface of the first disk surface. The charging cable is wound around the winding shaft as the axis. A ring-shaped groove is provided on the second disk surface. A T-shaped groove is provided on the rear cover for assembling a T-shaped movable member. One end of the T-shaped movable member is snapped into the T-shaped groove, and the other end is snapped into the ring-shaped groove. When the charging cable expands and contracts, it drives the winding disk to rotate, and at the same time, the T-shaped movable member can move relative to the ring-shaped groove.

2. The telescopic storage device for a vehicle charging cable according to claim 1, wherein, The ring-shaped groove includes a first ring guide groove, a second ring guide groove, a blocking portion, and a guiding portion. The first ring guide groove is an outer ring groove, and the second ring guide groove is an inner ring groove. A hook portion and two openings are provided on the ring wall between the first ring guide groove and the second ring guide groove. The two openings are respectively distributed on the left and right sides of the hook portion. The arcuate portion of the hook portion and an adjacent opening form the guiding portion, and the bent hook portion of the hook portion and the other opening form the blocking portion.

3. The telescopic storage device for a vehicle charging cable according to claim 2, characterized in that, The T-shaped movable member can move inside the T-shaped groove so as to switch between the first ring guide groove and the second ring guide groove. When the charging cable contracts, the T-shaped movable member can enter the second ring guide groove from the first ring guide groove through the blocking portion. When the charging cable stretches, the T-shaped movable member can enter the first ring guide groove from the second ring guide groove through the guiding portion.

4. The retractable storage device for a vehicle charging cable according to claim 3, wherein The length direction of the T-shaped groove is substantially the same as the radial direction of the ring-shaped groove. The position of the T-shaped groove corresponds to the first ring guide groove and the second ring guide groove.

5. The telescopic storage device for a vehicle charging cable according to claim 1, wherein The winding shaft and the winding disk are of an integrally formed structure or connected as a whole. When the charging cable stretches or contracts, the winding shaft can drive the winding disk to rotate.

6. The telescopic storage device for a vehicle charging cable according to claim 1, characterized in that, The winding assembly further includes a volute spring. The front cover includes a cut groove. One end of the volute spring is installed in the cut groove, and the other end is installed on the winding shaft.

7. The telescopic storage device for a vehicle charging cable according to claim 1, wherein, The circuit board assembly includes a first circuit board, a second circuit board, and a conductive elastic sheet. The first circuit board is disposed on the second disk surface, and the second circuit board is disposed on the rear cover. The first circuit board is electrically connected to the second circuit board through the conductive elastic sheet.

8. The telescopic storage device for a vehicle charging cable according to claim 7, wherein, The conductive elastic sheet is a multi-path ring-shaped conductive elastic sheet. Each path of the conductive elastic sheet is independently electrically connected to the circuit lines in the first circuit board and the second circuit board to avoid short circuits.

9. The telescopic storage device for a vehicle charging cable according to claim 8, wherein, The multi-path ring-shaped conductive elastic sheet is a multi-path ring-shaped elastic sheet arranged in the order of concentric circles. Each ring-shaped elastic sheet has a plurality of uniformly distributed elastic contacts or contact points. The plurality of elastic contacts or contact points on each ring-shaped elastic sheet are correspondingly arranged radially.

10. The telescopic storage device for vehicle charging cable according to claim 8, wherein, A multi-path circular groove is provided at the center of the second disk surface to accommodate the first circuit board and the multi-path ring-shaped conductive elastic sheet. The second circuit board is detachably connected to the rear cover.

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