Electric vehicle charger with coiling function

Abstract

The utility model provides an electric vehicle charger with a coiling function, comprising a casing and a circuit board, two sides of the circuit board are respectively provided with a power line and a charging line, the casing is internally provided with a coiling chamber and a circuit chamber, the circuit board is arranged in the circuit chamber, the coiling chamber is internally provided with a coiling roller, a power assembly and a wire clamping assembly, and the coiling roller is connected with the power assembly. One end of the charging wire is fixed and wound on the winding roller, the other end of the charging wire is exposed out of the machine shell and provided with a first charging plug, the power assembly drives the winding roller to rotate and tighten the charging wire, the wire clamping assembly is used for fixing the charging wire, the power assembly drives the winding roller to rotate, and therefore the charging wire is wound, and winding and extending of the charging wire are achieved. The charging wire is clamped by the wire clamping assembly, so that the exposed length of the charging wire can be adjusted.

Description

Technical Field

[0001] The utility model relates to an electric vehicle charger, in particular to an electric vehicle charger with a wire winding function. Background Art

[0002] Currently, a Chinese patent with announcement number CN206506332U discloses an electric vehicle charger, which consists of a housing, a circuit board, an indicator light and a power cord. The circuit board and the indicator light are installed in the housing, and the power cord extends from two short sides of the housing.

[0003] The above patent still has shortcomings. The length of the charging cable of the charger is usually fixed and cannot adapt to various scenarios. When the power supply is close to the electric vehicle, the charging cable is too long and easily gets tangled or entangled with other lines. When the power supply is far away from the electric vehicle, the charging cable is too short, resulting in insufficient distance, and an additional power strip is needed to extend the line. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide an electric vehicle charger with a wire winding function.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: an electric vehicle charger with a winding function, comprising a casing and a circuit board, a power cord and a charging cord are respectively provided on both sides of the circuit board, a winding bin and a circuit bin are provided in the casing, the circuit board is provided in the circuit bin, a winding roller, a power assembly and a wire clamping assembly are provided in the winding bin, one end of the charging cord is fixed and wound around the winding roller, and the other end is exposed from the casing and is provided with a charging plug, the power assembly drives the winding roller to rotate and tighten the charging cord, and the wire clamping assembly is used to fix the charging cord.

[0006] Through the above technical means, the power component drives the winding roller to rotate, thereby winding the charging cable, thereby realizing the winding and extension of the charging cable, and the charging cable is clamped by the wire clamping component, so that the exposed length of the charging cable can be adjusted.

[0007] Preferably, a power connecting rod is provided in the middle of the winding roller, the charging line is electrically connected to the power connecting rod, a conductive slip ring is also provided in the winding bin, the power connecting rod is inserted into the inner ring of the conductive slip ring and electrically connected thereto, and the outer ring of the conductive slip ring is fixedly connected to the casing and electrically connected to the circuit board.

[0008] By means of the above technical means, through the cooperation between the conductive slip ring and the connecting rod, the connecting rod can still maintain a stable electrical connection during the rotation process.

[0009] Preferably, the power assembly includes a fixed box and a coil spring, the fixed box is fixedly installed in the casing, one end of the coil spring is fixed in the fixed box, and the other end is fixed on the winding roller.

[0010] Through the above technical means, the coil spring provides power, so that the charging cable is automatically reeled onto the reeling roller when the cable clamping assembly releases the charging cable.

[0011] Preferably, the wire clamping assembly includes a winding roller, a clamping block, a square guide rod and a driving member for driving the clamping block to move. The winding roller is rotatably arranged in the winding bin, the square guide rod is fixedly arranged in the casing, and a sliding groove is opened in the middle of the clamping block, and the sliding groove slides with the direction guide rod.

[0012] Through the above technical means, the charging cable is clamped and the exposed part is fixed by the cooperation between the winding roller and the clamping block. The movement accuracy of the clamping block is increased and the rotation of the clamping block is restricted by the cooperation between the square guide rod and the sliding groove.

[0013] Preferably, the driving member includes a driving block and a locking member, the bottom of the clamping block is provided with an inclined guide surface 1, and the top of the driving block is provided with an inclined guide surface 2. When the driving block moves inward into the winding bin, the clamping block cooperates with the winding roller to clamp the charging cable, and the locking member is used to lock the position of the driving block.

[0014] Through the above technical means, through the cooperation between the inclined guide surface 1 and the inclined guide surface 2, the clamping block can be moved upward when the driving block is pushed, and the driving block is locked by the locking piece to prevent the clamping block from moving back.

[0015] Preferably, the locking member includes a knob, a lock slot and a rebound spring, a baffle is provided in the winding bin, the rebound spring is provided between the baffle and the clamping block, the knob is rotatably provided on the clamping block, one end of the knob is elliptical, and the knob is fixed in the lock slot when the long axis of the knob is stuck in the lock slot.

[0016] By means of the above technical means, the locking of the knob is achieved through the cooperation between the locking slot and the oval knob, and the driving block is rebounded by the rebound spring, so that the knob automatically moves back when it is not stuck in the locking slot.

[0017] Preferably, a rotary rod is provided at the tail of the knob, a rotary groove is provided on the clamping block, a bearing is provided between the rotary rod and the rotary groove, and the bearing is fixed to the clamping block by screws.

[0018] By using the above technical means, a bearing is provided between the rotary rod and the rotary groove, thereby making the rotation of the knob more labor-saving and reducing the possibility of jamming.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The power assembly drives the reel to rotate, thereby reeling the charging cable, thereby realizing the reeling and extension of the charging cable. The cable clamping assembly clamps the charging cable, so that the exposed length of the charging cable can be adjusted;

[0021] 2. The locking of the knob is achieved through the cooperation between the locking groove and the oval knob, and the driving block is rebounded by the rebound spring, so that the knob automatically moves back when it is not stuck in the locking groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of an embodiment;

[0023] Figure 2 A cross-sectional view of an embodiment Figure 1 ;

[0024] Figure 3 A cross-sectional view of an embodiment Figure 2 ;

[0025] Figure 4 This is a schematic diagram of the charging cable being unlocked;

[0026] Figure 5 This is a schematic diagram of the charging cable locked.

[0027] Figure markings: 1. Casing; 2. Circuit board; 3. Power cord; 4. Charging cable; 5. Winding compartment; 6. Circuit compartment; 7. Cooling fan; 8. Winding roller; 9. Power assembly; 10. Wire clamping assembly; 11. Charging plug 1; 12. Power connecting pole; 13. Conductive slip ring; 14. Fixing box; 15. Coil spring; 16. Winding roller; 17. Clamping block; 18. Square guide rod; 19. Driving member; 20. Driving block; 21. Locking member; 22. Inclined guide surface 1; 23. Inclined guide surface 2; 24. Knob; 25. Locking groove; 26. Rebound spring; 27. Baffle; 28. Mounting rod; 29. ​​Rotating rod; 30. Rotating groove; 31. Bearing. DETAILED DESCRIPTION

[0028] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0029] An electric vehicle charger with a winding function, such as Figure 1 、 Figure 2 、 Figure 3 As shown, it includes a casing 1 and a circuit board 2, with a power cord 3 and a charging cord 4 respectively provided on both sides of the circuit board 2, a winding bin 5 and a circuit bin 6 provided in the casing 1, the circuit board 2 is provided in the circuit bin 6, and a cooling fan 7 is also provided in the circuit bin 6, a winding roller 8, a power component 9 and a wire clamping component 10 are provided in the winding bin 5, one end of the charging cord 4 is fixed and wound on the winding roller 8, and the other end is exposed from the casing 1 and is provided with a charging plug 11, the power component 9 drives the winding roller 8 to rotate and tighten the charging cord 4, and the wire clamping component 10 is used to fix the charging cord 4.

[0030] A power connecting rod 12 is provided in the middle of the winding roller 8. The tail end of the charging cable 4 is electrically connected to the power connecting rod 12 through an electric wire. A conductive slip ring 13 is also provided in the winding bin 5. The power connecting rod 12 is inserted into the inner ring of the conductive slip ring 13 and electrically connected to it through an electric wire. The outer ring of the conductive slip ring 13 is fixedly connected to the casing 1 and electrically connected to the circuit board 2. Through the cooperation between the conductive slip ring 13 and the power connecting rod 12, the power connecting rod 12 can still maintain a stable electrical connection during the rotation process.

[0031] The power assembly 9 includes a fixed box 14 and a coil spring 15. The fixed box 14 is fixedly installed in the casing 1. One end of the coil spring 15 is fixed in the fixed box 14, and the other end is fixed on the winding roller 8. When the charging cable 4 is pulled out, the winding roller 8 rotates in the opposite direction and tightens the torsion spring, causing the torsion spring to produce elastic deformation. When the tension applied to the charging cable 4 disappears, the elastic energy stored in the torsion spring is released, and the charging cable 4 is rewound on the winding roller 8.

[0032] like Figure 4 、 Figure 5 As shown, the wire clamping assembly 10 includes a winding roller 16, a clamping block 17, a square guide rod 18 and a driving member 19 for driving the clamping block 17 to move. The clamping block 17 is arranged opposite to the winding roller 16, and the winding roller 16 is rotatably arranged in the winding bin 5. When the charging line 4 is pulled, the winding roller 16 rotates, thereby guiding the direction of the charging line 4 and reducing the friction between the charging line 4 and the winding roller 16. The square guide rod 18 is fixedly arranged in the casing 1, and a sliding groove is opened in the middle of the clamping block 17, and the sliding groove slides with the direction guide rod.

[0033] The driving member 19 includes a driving block 20 and a locking member 21. An inclined guide surface 1 22 is provided at the bottom of the clamping block 17, and an inclined guide surface 23 is provided at the top of the driving block 20. When the driving block 20 moves into the inner winding bin 5, the inclined guide surface 1 22 cooperates with the inclined guide surface 2 23 to push the clamping block 17 toward the winding roller 16 and cooperate to clamp the charging line 4. Through the cooperation between the winding roller 16 and the clamping block 17, the charging line 4 is clamped so that the exposed part is fixed, so that the exposed length of the charging line 4 can be adjusted. Through the cooperation between the square guide rod 18 and the sliding groove, the movement accuracy of the clamping block 17 is increased and the rotation of the clamping block 17 is limited.

[0034] The locking member 21 is used to lock the position of the driving block 20. The locking member 21 includes a knob 24, a locking groove 25 and a rebound spring 26. A baffle 27 is provided in the winding bin 5. The rebound spring 26 is arranged between the baffle 27 and the clamping block 17. A mounting rod 28 is also provided on the driving block 20. The return spring is sleeved on the mounting rod 28 and presses against the baffle 27. The knob 24 is rotated and arranged on the clamping block 17. One end of the knob 24 is elliptical, and the ellipse has a major axis and a minor axis. When the major axis of the knob 24 is stuck in the locking groove 25, the knob 24 is fixed in the locking groove 25. When the minor axis moves to the direction of the locking groove 25, the rebound spring 26 drives the driving block 20 and the knob 24 to pop out. The locking of the knob 24 is achieved by the cooperation between the locking groove 25 and the elliptical knob 24. The driving block 20 rebounds by the rebound spring 26, so that the knob 24 automatically moves back when it is not stuck in the locking groove 25.

[0035] A rotating rod 29 is provided at the tail of the knob 24 , a rotating groove 30 is provided on the clamping block 17 , a bearing 31 is provided between the rotating rod 29 and the rotating groove 30 , and the bearing 31 is fixed to the clamping block 17 by screws.

[0036] like Figure 4 、 Figure 5 As shown, when the length of the charging cable 4 needs to be adjusted, first disengage the knob 24 from the locking slot 25, pull the charging cable 4 out to the required length, press the knob 24, so that the knob 24 drives the driving block 20 to move toward the winding bin 5, and makes the inclined guide surface 1 22 and the inclined guide surface 2 23 abut against the driving clamping block 17 to move toward the winding roller 16. At this time, the clamping block 17 and the winding roller 16 clamp the charging cable 4, and then rotate the knob 24 so that the long axis of the knob 24 is stuck in the locking slot 25 to complete the locking.

[0037] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementation methods. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the present invention.

Claims

1. An electric vehicle charger with a winding function, comprising a housing (1) and a circuit board (2), wherein a power line (3) and a charging line (4) are respectively provided on both sides of the circuit board (2), and wherein: The housing (1) is provided with a winding bin (5) and a circuit bin (6), the circuit board (2) is provided in the circuit bin (6), the winding bin (5) is provided with a winding roller (8), a power assembly (9) and a wire clamping assembly (10), one end of the charging cable (4) is fixed and wound on the winding roller (8), and the other end is exposed from the housing (1) and is provided with a charging plug (11), the power assembly (9) drives the winding roller (8) to rotate and tighten the charging cable (4), and the wire clamping assembly (10) is used to fix the charging cable (4).

2. The electric vehicle charger with a cable winding function according to claim 1, characterized in that: A power connection rod (12) is provided in the middle of the winding roller (8), the charging line (4) is electrically connected to the power connection rod (12), a conductive slip ring (13) is also provided in the winding bin (5), the power connection rod (12) is inserted into the inner ring of the conductive slip ring (13) and is electrically connected thereto, and the outer ring of the conductive slip ring (13) is fixedly connected to the housing (1) and electrically connected to the circuit board (2).

3. The electric vehicle charger with a cable winding function according to claim 1, characterized in that: The power assembly (9) comprises a fixed box (14) and a coil spring (15). The fixed box (14) is fixedly installed in the housing (1). One end of the coil spring (15) is fixed in the fixed box (14), and the other end is fixed on the winding roller (8).

4. The electric vehicle charger with a cable winding function according to claim 1, characterized in that: The wire clamping assembly (10) comprises a winding roller (16), a clamping block (17), a square guide rod (18) and a driving member (19) for driving the clamping block (17) to move. The winding roller (16) is rotatably arranged in the winding bin (5), the square guide rod (18) is fixedly arranged in the casing (1), and a sliding groove is provided in the middle of the clamping block (17), and the sliding groove is slidably matched with the direction guide rod.

5. The electric vehicle charger with a cable winding function according to claim 4, characterized in that: The driving member (19) includes a driving block (20) and a locking member (21); the bottom of the clamping block (17) is provided with an inclined guide surface (22); the top of the driving block (20) is provided with an inclined guide surface (23); when the driving block (20) moves into the inner winding bin (5), the clamping block (17) cooperates with the winding roller (16) to clamp the charging cable (4); and the locking member (21) is used to lock the position of the driving block (20).

6. The electric vehicle charger with a cable winding function according to claim 5, characterized in that: The locking member (21) comprises a knob (24), a locking slot (25) and a rebound spring (26); a baffle (27) is provided in the winding bin (5); the rebound spring (26) is provided between the baffle (27) and the clamping block (17); the knob (24) is rotatably provided on the clamping block (17); one end of the knob (24) is elliptical; when the long axis of the knob (24) is engaged in the locking slot (25), the knob (24) is fixed in the locking slot (25).

7. The electric vehicle charger with a cable winding function according to claim 6, characterized in that: The knob (24) is provided with a rotary rod (29) at its tail end, the clamping block (17) is provided with a rotary groove (30), a bearing (31) is provided between the rotary rod (29) and the rotary groove (30), and the bearing (31) is fixed to the clamping block (17) by screws.

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