Charging bag capable of automatically winding and unwinding charging wire

Abstract

The utility model relates to the technical field of new energy automobile charging piles, in particular to a charging bag capable of automatically winding and unwinding a charging wire, which solves the problem that the charging wire and a charging head in the existing charging bag cannot be stably stored and extended, and comprises a charging bag, a winding wheel and a third power mechanism, a winding wheel is rotationally sleeved outside the winding wheel shaft, a charging wire is wound in the winding wheel, one end of the charging wire is connected to an external mains supply, and the other end of the charging wire movably penetrates out of the front end of the winding wheel and then is fixedly connected with a charging head. And when the charging wire enters and exits the charging bag, the winding wheel correspondingly rotates forwards and backwards to regularly wind or unwind the charging wire, so that the charging wire is prevented from being disordered in the charging bag, and the charging wire can be stably stored or unwound.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicle charging piles, and particularly relates to a charging pack capable of automatically retracting and extending a charging cable. Background Art

[0002] A charging pile is an energy replenishment device that provides power to electric vehicles. Its function is similar to a fuel dispenser in a gas station. It can be fixed on the ground or wall and installed in public buildings and residential community parking lots. It can charge various models of electric vehicles by adjusting voltage and current.

[0003] The input end of the charging pile is directly connected to the AC power grid, and the output end is equipped with a charging plug for charging electric vehicles. Generally, the charging pile provides two charging methods: conventional charging and fast charging. People can use a specific charging card to swipe on the human-machine interaction operation interface provided by the charging pile to perform corresponding charging operations and print fee data. The display screen of the charging pile can display data such as the charging amount, fee, and charging time.

[0004] After long-term development, the functions of the charging pile are more perfect, including the charging pack moving and changing track function. For example, in the Chinese invention patent with the application number CN202310922077.3, it can solve the problem that the charging head cannot be pulled to the position of the vehicle for charging due to the small number of fixed charging piles. Therefore, most of the existing charging piles with track-changing function are suspended on the ceiling of the basement. When needed, the whole charging pack is moved to the parking position of the vehicle, and then the charging head in the charging pack is pulled out to start charging.

[0005] However, the charging cable and charging head in the existing charging pack cannot be stably retracted and extended. Therefore, the utility model provides a charging pack capable of automatically retracting and extending a charging cable to solve the above problems. Summary of the Utility Model

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a charging pack capable of automatically retracting and extending a charging cable to solve the problem that the charging cable and charging head in the charging pack cannot be stably retracted and extended.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0008] A charging pack for automatically retracting and extending a charging cable, comprising a charging pack, a cable reel, and a third power mechanism. A reel shaft is fixedly connected inside the charging pack. A cable reel is rotatably sleeved outside the reel shaft. A charging cable is wound inside the cable reel. One end of the charging cable is connected to an external power supply, and the other end of the charging cable passes through the front end of the cable reel movably and is fixedly connected to a charging head. A charging head protective sleeve passes through the lower end of the charging pack, and the charging cable passes through the charging head protective sleeve movably. The charging head is located inside the charging head protective sleeve. A third power mechanism is installed inside the charging pack, and the third power mechanism drives the charging cable to enter and exit the charging pack.

[0009] Through the above technical solution, the third power mechanism can drive the charging cable to enter and exit the charging pack to accommodate or release the charging head. When the charging cable enters and exits the charging pack, the cable reel rotates forward and backward correspondingly to regularly wind up or unwind the charging cable, preventing the charging cable from being disorderly inside the charging pack, thereby stably accommodating or releasing the charging cable.

[0010] Preferably, the third power mechanism includes a spring, a wire clamping wheel, a rotating frame, a third power mechanism housing, a motor housing, a first screw, a third gear, a fourth gear, a fifth gear, a first motor, and a third power transmission component. The third power mechanism housing and the motor housing communicate with each other internally and are both fixed inside the charging pack. A first motor is fixedly connected inside the motor housing. The input end of the first motor is electrically connected to the output end of the external power supply. The output end of the first motor is fixedly connected to a first screw. The first screw meshes with the third gear. The third gear and the fourth gear rotate coaxially and synchronously inside the third power mechanism housing. The fourth gear meshes with the fifth gear. The fifth gear rotates inside the third power mechanism housing through a rotating shaft.

[0011] One end of the rotating frame rotates through a rotating shaft on the side of the third power mechanism housing. The other end of the rotating frame is fixedly connected to a spring. The other end of the spring is fixedly connected to one end of a support rod. The other end of the support rod is fixedly connected to the third power mechanism housing. Wire clamping wheels are rotatably installed on the side surfaces of the rotating frame and the third power mechanism housing. The fifth gear rotates coaxially and synchronously with the wire clamping wheel on the third power mechanism housing. A third power transmission component is installed between the fifth gear and the wire clamping wheel on the rotating frame. The fifth gear drives the wire clamping wheel on the rotating frame to rotate through the third power transmission component. The charging cable passes through the space between the two wire clamping wheels movably.

[0012] Through the above technical solution, in the third power mechanism, power is used to drive two wire clamping wheels to actively drive the charging wire to move, so as to achieve the purpose of recycling and releasing the charging wire. Moreover, the spring pulls the rotating frame, causing the two wire clamping wheels to approach each other. On the one hand, the charging wire can be firmly clamped, ensuring that the friction between the wire clamping wheels and the charging wire is sufficient, and the wire clamping wheels can stably drive the charging wire to move without slipping. On the other hand, the distance between the two wire clamping wheels is adjustable, enabling the two wire clamping wheels to clamp charging wires of various thicknesses, with a wide range of applications.

[0013] Preferably, the pitch circle diameter of the third gear is greater than that of the fourth gear, and the number of teeth of the third gear is greater than that of the fourth gear. The pitch circle diameter of the fifth gear is greater than that of the fourth gear, and the number of teeth of the fifth gear is greater than that of the fourth gear.

[0014] Through the above technical solution, the rotational speed can be adjusted to make the wire clamping wheels reach the rated rotational speed.

[0015] Preferably, the third power transmission component includes a first gear, a second gear, a sixth gear, and a twentieth gear. The twentieth gear rotates in the housing of the third power mechanism through a rotating shaft. The twentieth gear is in meshing engagement with the fifth gear, and the twentieth gear is in meshing engagement with the sixth gear. The sixth gear and the second gear rotate coaxially and synchronously. The rotating shafts of the sixth gear and the second gear pass through the front side of the housing of the third power mechanism and the rear side of the rotating frame, enabling the rotating frame to rotate around the rotating shafts of the sixth gear and the second gear. The second gear is in meshing engagement with the first gear, and the first gear is fixed at the end of the rotating shaft of the wire clamping wheel located on the rotating frame.

[0016] Through the above technical solution, the third power component transmits the power of the fifth gear to the wire clamping wheels, enabling the two wire clamping wheels to rotate synchronously.

[0017] Preferably, the tooth number ratio of the first gear to the second gear is equal to the tooth number ratio of the sixth gear to the fifth gear.

[0018] Through the above technical solution, the rotational speeds of the two wire clamping wheels are made equal.

[0019] Preferably, threading holes are circularly arrayed on the rear side of the wire reel. One end of the charging wire passes through the threading holes movably and is connected to an external mains supply.

[0020] Through the above technical solution, the charging wire passes through the threading holes, which can prevent the charging wire from slipping in the wire reel and not being wound up, that is, ensuring that the wire reel must drive the charging wire to rotate when it rotates.

[0021] The beneficial effects of the present utility model are as follows:

[0022] 1. The third power mechanism can drive the charging cable to enter and exit the charging pack, so as to store or release the charger head. When the charging cable enters and exits the charging pack, the cable reel rotates forward and backward correspondingly to regularly wind or unwind the charging cable, preventing the charging cable from being disorderly in the charging pack, and thus stably storing or releasing the charging cable.

[0023] 2. The spring pulls the rotating frame, making the two wire clamping wheels approach each other. On the one hand, it can firmly clamp the charging cable to ensure that the friction between the wire clamping wheel and the charging cable is sufficient, and the wire clamping wheel can stably drive the charging cable to move without slipping. On the other hand, the distance between the two wire clamping wheels is adjustable, enabling the two wire clamping wheels to clamp charging cables of various thicknesses, with a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a perspective view of the present utility model.

[0025] Figure 2 It is a sectional perspective view after the first section of the present utility model.

[0026] Figure 3 It is Figure 2 a schematic diagram of the enlarged partial structure of part A of

[0027] Figure 4 It is Figure 2 a schematic diagram of the enlarged partial structure of part B of

[0028] Figure 5 It is Figure 2 a schematic diagram of the enlarged partial structure of part C of

[0029] Figure 6 It is a sectional perspective view of the first view after the second section of the present utility model.

[0030] Figure 7 It is Figure 6 a schematic diagram of the enlarged partial structure of part D of

[0031] Figure 8 It is Figure 6 a schematic diagram of the enlarged partial structure of part E of

[0032] Figure 9 It is Figure 6 a schematic diagram of the enlarged partial structure of part F of

[0033] Figure 10 It is Figure 6 a schematic diagram of the enlarged partial structure of part G of

[0034] Figure 11 It is a sectional perspective view of the second view after the second section of the present utility model.

[0035] Figure 12 It is Figure 11Schematic diagram of the partial enlarged structure of part H.

[0036] Figure 13 Schematic diagram of the structure of the third power mechanism of the parts in the present utility model.

[0037] Figure 14 Schematic diagram of the structural change during the cooperation of the local parts in the present utility model.

[0038] Figure 15 is Figure 14 Schematic diagram of the partial enlarged structure of part I.

[0039] Figure 16 Schematic diagram of the internal structure of the charger head in the present utility model.

[0040] Figure 17 Schematic diagram of the cross-sectional view of the internal structure of the charger head in the present utility model from the first perspective.

[0041] Figure 18 Schematic diagram of the cross-sectional view of the internal structure of the charger head in the present utility model from the second perspective.

[0042] Figure 19 Schematic diagram of the internal structure of the charging pack in the present utility model.

[0043] In the figure: 1, main ceiling track; 2, support rib; 3, port frame; 4, plug; 5, socket; 6, charging pack; 7, charger head protective cover; 8, hanging bracket; 9, first roller; 10, housing of the first power mechanism; 11, trapezoidal top block; 12, housing of the second power mechanism; 13, calibration rod; 14, calibration ring; 15, first sliding carriage; 16, lead screw; 17, first telescopic rod; 18, secondary track; 19, second sliding carriage; 20, fixing member; 21, second telescopic rod; 22, housing of the transmission mechanism; 23, third sliding carriage; 24, reel shaft; 25, wire threading hole; 26, wire reel; 27, charging cable; 28, spring; 29, wire clamping wheel; 30, first gear; 31, rotating frame; 32, second gear; 33, housing of the third power mechanism; 34, motor housing; 35, support rod; 36, second roller; 37, protruding part; 38, first screw; 39, third gear; 40, fourth gear; 41, fifth gear; 42, first motor; 43, sixth gear; 44, housing of the fourth power mechanism; 45, through shaft; 46, seventh gear; 47, eighth gear; 48, gear notch; 49, ninth gear; 50, tenth gear; 51, eleventh gear; 52, twelfth gear; 53, thirteenth gear; 54, second motor; 55, second screw; 56, fourteenth gear; 57, first bevel gear; 58, second bevel gear; 59, fifteenth gear; 60, third motor; 61, third screw; 62, sixteenth gear; 63, seventeenth gear; 64, eighteenth gear; 65, nineteenth gear; 66, twentieth gear; 67, elastic rod; 68, card holder; 69, charger head; 70, nut; 71, positioning frame; 72, inductor; 73, chamfered chuck; 74, signaler of the first wire reel motor; 75, wire splitting; 76, elastic piece; 77, signaler of the second wire reel motor; 78, trigger switch; 79, inner plate; 80, main control board. Detailed implementation manners

[0044] The following will refer to the reference appendices Figures 1 to 19 to explain in detail the embodiments of the present utility model. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model.

[0045] As shown in the appendices Figure 1 - Appendices Figure 19 As shown, a charging pack for automatically retracting and extending a charging cable includes a main ceiling track 1, a charging pack 6, a charging pack transmission device, a suspension bracket, and a hanger;

[0046] The suspension bracket includes two support ribs 2 and two port brackets 3. The two port brackets 3 are both in a U-shape and symmetrically arranged. The two support ribs 2 are respectively fixed between the ends of the two port brackets 3, making the whole suspension bracket rectangular. The two port brackets 3 are the front and rear sides of the suspension bracket, and the two support ribs 2 are the left and right sides of the suspension bracket;

[0047] Inside the mutually approaching sides of the two support ribs 2, three fixing members 20 slide back and forth. To reduce friction, at one end of each fixing member 20, two second rollers 36 are rotatably connected through a rotating shaft, and the second rollers 36 roll inside the support ribs 2;

[0048] The ends of the two rear fixing members 20 are fixedly connected to a first sliding frame 15. The ends of the two middle fixing members 20 are fixedly connected to a second sliding frame 19. The ends of the two front fixing members 20 are fixedly connected to a third sliding frame 23. Two inner through holes are provided in each of the first sliding frame 15, the second sliding frame 19, and the third sliding frame 23. A first telescopic rod 17 passes through one of the inner through holes of the first sliding frame 15 and the second sliding frame 19 back and forth. A second telescopic rod 21 passes through one of the inner through holes of the second sliding frame 19 and the third sliding frame 23 back and forth. The first telescopic rod 17 is aligned with the other inner through hole of the third sliding frame 23, and the second telescopic rod 21 is aligned with the other inner through hole of the first sliding frame 15. The first telescopic rod 17 and the second telescopic rod 21 are arranged in parallel, so that when the first sliding frame 15 and the second sliding frame 19 approach each other, the second telescopic rod 21 is inserted backward into the inner through hole of the first sliding frame 15, and when the third sliding frame 23 and the second sliding frame 19 approach each other, the first telescopic rod 17 is inserted forward into the inner through hole of the second sliding frame 19;

[0049] Protrusion parts 37 are provided at the front and rear ends of the first telescopic rod 17 and the front and rear ends of the second telescopic rod 21. The height of the protrusion parts 37 is greater than the height of the inner through hole of the second sliding frame 19, so that the protrusion parts 37 cannot pass through the inner through hole of the second sliding frame 19, ensuring that the first telescopic rod 17 and the second telescopic rod 21 are always connected to the second sliding frame 19. The height of the protrusion parts 37 is less than the height of the inner through holes of the first sliding frame 15 and the third sliding frame 23, so that the protrusion parts 37 can penetrate into or out of the first sliding frame 15 and the third sliding frame 23. After referring to the attached Figure 14 and attached Figure 15 , the front end of the rear protrusion part of the first telescopic rod 17 is located in the middle of the first telescopic rod 17, and the rear end of the front protrusion part of the second telescopic rod 21 is located in the middle of the second telescopic rod 21, so that the first sliding frame 15, the second sliding frame 19, and the third sliding frame 23 move to as shown in the attached Figure 14In the b state and the c state shown, the second carriage 19 is located exactly in the middle of the first carriage 15 and the third carriage 23. Elastic rods 67 are fixedly connected to the upper ends of the first carriage 15 and the third carriage 23. The other ends of the elastic rods 67 are fixedly connected to card seats 68. A bayonet is provided at the lower end of the card seat 68. After the first telescopic rod 17 passes through the third carriage 23, the protruding portion 37 of the first telescopic rod 17 passes through the bayonet of the card seat 68. After the second telescopic rod 21 passes through the first carriage 15, the protruding portion 37 of the second telescopic rod 21 passes through the bayonet of the card seat 68. The elastic rod 67 presses down the card seat 68, and the card seat 68 is stuck on the vertical surface of the protruding portion 37, so that the card seat 68 holds down the first telescopic rod 17 and the second telescopic rod 21 downward, making the first telescopic rod 17 and the second telescopic rod 21 unable to move back and forth at will;

[0050] Ceiling main rails 1 are fixedly connected to both of the two support ribs 2. The two ceiling main rails 1 are on the same straight line. A secondary rail 18 is fixedly connected between the left and right fixing members 20, that is, there are a total of three secondary rails 18. The length of the secondary rail 18 is equal to the distance between the two ceiling main rails 1. Charging pack transmission devices are installed between the front secondary rail 18 and the suspension bracket and between the rear secondary rail 18 and the suspension bracket. One of the charging pack transmission devices drives the front secondary rail 18 to move back and forth, and the other charging pack transmission device drives the rear secondary rail 18 to move back and forth, so that any one of the secondary rails 18 can move back and forth between the two ceiling main rails 1 or can leave between the two ceiling main rails 1. The secondary rail 18 and the ceiling main rail 1 are both in the shape of a capital "I", so that rail grooves are formed inside the front and rear ends of the secondary rail 18 and the ceiling main rail 1. Suspenders are slidably installed on the ceiling main rail 1 along the length direction. The number of the suspenders is not less than one. A charging pack 6 is fixedly connected to the lower end of each suspender. That is, the first carriage 15, the second carriage 19 and the third carriage 23 suspend the charging pack 6 through the secondary rail 18 and the suspender. The suspender moves between the secondary rail 18 and the ceiling main rail 1. Trapezoidal top blocks 11 are fixed to the front and rear ends on the upper side of each suspender. When the suspender reaches the secondary rail 18, the trapezoidal top block 11 pushes up the card seat 68;

[0051] Refer to the appendix Figure 19 Inside the charging pack 6, an inner plate 79 is fixed, and a main control board 80 is fixed on the inner plate 79.

[0052] As shown in the appendix Figure 2As shown in the figure, a reel shaft 24 is fixedly connected inside the charging pack 6. A wire reel 26 is rotatably sleeved outside the reel shaft 24. Threading holes 25 are circularly arrayed at the rear side of the wire reel 26. A charging wire 27 is wound inside the wire reel 26. One end of the charging wire 27 movably passes through the threading hole 25 and is connected to the main control board. The other end of the charging wire 27 movably passes out of the front end of the wire reel 26 and is fixedly connected with a charging head 69. A charging head protective sleeve 7 passes through the lower end of the charging pack 6. The charging wire 27 movably passes through the charging head protective sleeve 7. The charging head 69 is located inside the charging head protective sleeve 7. A trigger switch 78 is fixed inside the charging head protective sleeve 7. When the charging head 69 is moved into the charging head protective sleeve 7, it touches the sensing end of the trigger switch 78. The trigger switch 78 is electrically connected to the output end of the main control board 80 and sends a signal to the main control board 80 when the sensing end of the trigger switch 78 is touched to confirm that the charging head 69 has been retracted. A third power mechanism is installed inside the charging pack 6, and the third power mechanism drives the charging wire 27 to enter and exit the charging pack 6;

[0053] The working principle of winding the charging wire 27 is as follows: The third power mechanism drives the charging wire 27 to enter and exit the charging pack 6. When the charging wire 27 enters the charging pack 6, it will push the wire reel 26 to rotate forward, so that the charging wire 27 is regularly wound up instead of being randomly coiled. Moreover, the charging head 69 is hidden inside the charging head protective sleeve 7 to protect the charging head 69. When the charging wire 27 is discharged from the charging pack 6, the wire reel 26 rotates in the reverse direction, so that the charging wire 27 is pulled out, and the charging head 69 drops down to the ground, and then the charging head 69 can be used.

[0054] As shown in the attached Figure 2 、attachment Figure 5 、attachment Figure 6 、attachment Figure 7 and attachment Figure 13 As shown in the attached figures, the third power mechanism includes a spring 28, a wire clamping wheel 29, a rotating frame 31, a third power mechanism housing 33, a motor housing 34, a first screw rod 38, a third gear 39, a fourth gear 40, a fifth gear 41, a first motor 42 and a first power transmission component. The inside of the third power mechanism housing 33 and the motor housing 34 are internally connected and are both fixed inside the charging pack 6. A first motor 42 is fixedly connected inside the motor housing 34. The input end of the first motor 42 is electrically connected to the output end of the main control board. The output end of the first motor 42 is fixedly connected with a first screw rod 38. The first screw rod 38 is meshed with the third gear 39 in a tooth-by-tooth manner. The third gear 39 and the fourth gear 40 rotate coaxially and synchronously inside the third power mechanism housing 33. The pitch circle diameter of the third gear 39 is larger than that of the fourth gear 40, and the number of teeth of the third gear 39 is larger than that of the fourth gear 40. The fourth gear 40 is meshed with the fifth gear 41 in a tooth-by-tooth manner. The pitch circle diameter of the fifth gear 41 is larger than that of the fourth gear 40, and the number of teeth of the fifth gear 41 is larger than that of the fourth gear 40. The fifth gear 41 rotates inside the third power mechanism housing 33 through a rotating shaft;

[0055] One end of the rotating frame 31 rotates on the side of the housing 33 of the third power mechanism through a rotating shaft. The other end of the rotating frame 31 is fixedly connected to a spring 28. The other end of the spring 28 is fixedly connected to one end of a support rod 35. The other end of the support rod 35 is fixedly connected to the housing 33 of the third power mechanism. Thread clamping wheels 29 are rotatably mounted on the sides of both the rotating frame 31 and the housing 33 of the third power mechanism. The fifth gear 41 rotates coaxially and synchronously with the thread clamping wheel 29 on the housing 33 of the third power mechanism. A first power transmission assembly is installed between the fifth gear 41 and the thread clamping wheel 29 on the rotating frame 31. The fifth gear 41 drives the thread clamping wheel 29 on the rotating frame 31 to rotate through the first power transmission assembly. The charging cable 27 movably passes between the two thread clamping wheels 29;

[0056] The working principle of the third power mechanism is as follows: When the first motor 42 is powered on, it drives the first screw rod 38 to rotate. The first screw rod 38 drives the third gear 39 to rotate. The third gear 39 drives the fourth gear 40 to rotate. The fourth gear 40 drives the fifth gear 41 to rotate. On the one hand, the fifth gear 41 drives one of the thread clamping wheels 29 to rotate. On the other hand, the fifth gear 41 drives the other thread clamping wheel 29 to rotate through the first power transmission assembly. The two thread clamping wheels 29 together drive the charging cable 27 to move. And the spring 28 pulls the rotating frame 31, so that the two thread clamping wheels 29 approach each other. On the one hand, the charging cable 27 can be firmly clamped, ensuring that the friction between the thread clamping wheel 29 and the charging cable 27 is sufficient, and the thread clamping wheel 29 can stably drive the charging cable 27 to move without slipping. On the other hand, the distance between the two thread clamping wheels 29 is adjustable, so that the two thread clamping wheels 29 can clamp charging cables 27 of various thicknesses, with a wide range of applications;

[0057] When the charging head 69 is inserted into the charging head protective sleeve 7 and touches the induction end of the trigger switch 78, the trigger switch 78 sends a signal to the main control board 80. The main control board 80 controls the first motor 42 to stop working, and then stops winding the charging cable 27;

[0058] As shown in the attached Figure 2 、attached Figure 5 、attached Figure 6 、attached Figure 7 and attached Figure 13As shown in the figure, the first power transmission component includes a first gear 30, a second gear 32, a sixth gear 43 and a twentieth gear 66. The twentieth gear 66 rotates within the housing 33 of the third power mechanism through a rotating shaft. The twentieth gear 66 meshes with the fifth gear 41 and the sixth gear 43. The sixth gear 43 rotates coaxially and synchronously with the second gear 32. The rotating shafts of the sixth gear 43 and the second gear 32 pass through the front side of the housing 33 of the third power mechanism and the rear side of the rotating frame 31, enabling the rotating frame 31 to rotate around the rotating shafts of the sixth gear 43 and the second gear 32. The second gear 32 meshes with the first gear 30. The first gear 30 is fixed to the end of the rotating shaft of the wire clamping wheel 29 located on the rotating frame 31. Additionally, the tooth number ratio of the first gear 30 to the second gear 32 is equal to the tooth number ratio of the sixth gear 43 to the fifth gear 41 to ensure that the rotational speeds of the two wire clamping wheels 29 are equal.

[0059] The working principle of the first power transmission component is as follows: When the fifth gear 41 rotates, it drives the twentieth gear 66 to rotate. The twentieth gear 66 drives the sixth gear 43 to rotate. The sixth gear 43 drives the second gear 32 to rotate. The second gear 32 drives the first gear 30 to rotate. The first gear 30 drives the wire clamping wheel 29 to rotate.

[0060] Refer to the appendix Figure 16 - Appendix Figure 18 As shown, the charger head 69 includes a charging inner plug 691, a hand-held vibration sensor 692, a charging signal feedback device 693, a button 694 and a charger head housing 695. The charging inner plug 691 is inserted through the end of the charger head housing 695. The hand-held vibration sensor 692 and the charging signal feedback device 693 are fixed within the charger head housing 695. Both the hand-held vibration sensor 692 and the charging signal feedback device 693 are electrically connected to the main control board 80 to detect the signals before and after charging and send them to the main control board 80 for control. A button 694 rotates through a rotating shaft within the upper end of the charger head housing 695. One end of the button 694 abuts against the sensing end of the charging signal feedback device 693. A chamfered chuck 73 is integrally formed at the other end of the button 694 in the direction of the charging inner plug 691. A spring piece 76 is fixed within the charger head housing 695. One end of the spring piece 76 pushes up the end of the button 694 close to the charging signal feedback device 693.

[0061] After the end of the charging cable 27 penetrates into the charger head housing 695, it is electrically connected to the splitter wire 75, and the splitter wire 75 penetrates into the charging inner plug 691.

[0062] Inside the charging head housing 695, a coiling motor signaler is fixed. The coiling motor signaler is electrically connected to the main control board 80. The output end of the coiling motor signaler is electrically connected to the first motor. The coiling motor signaler is the first coiling motor signaler 74 or the second coiling motor signaler 77. When the coiling motor signaler is the first coiling motor signaler 74, the triggering end of the first coiling motor signaler 74 abuts against the lower side of the button 694, and the first coiling motor signaler 74 is electrically connected to the main control board 80. When the coiling motor signaler is the second coiling motor signaler 77, the second coiling motor signaler 77 is a signal board, and the second coiling motor signaler 77 is electrically connected to the main control board 80. When the coiling motor signaler receives a signal from the main control board 80, it can control the third power mechanism to take in or release the charging cable 27.

[0063] As shown in the Figure 1 attached Figure 2 figure Figure 6 and Figure 8 attached Figure 11 figure Figure 12 and

[0064] The working principle of the suspension bracket is as follows: The second power mechanism drives the first rollers 9 to rotate forward and backward. The first rollers 9 roll in the ceiling main track 1 and the sub-track 18, thereby driving the suspension bracket 8 to move along the ceiling main track 1 and the sub-track 18, and thus driving the charging pack 6 to move.

[0065] As shown in the Figure 1 attached Figure 2 figure Figure 6 and Figure 8 attached Figure 11 figure Figure 12As shown in the figure, the second power mechanism includes a fourth power mechanism housing 44, a third motor 60, a third screw 61, a sixteenth gear 62, a seventeenth gear 63, an eighteenth gear 64, and a second power transmission assembly. The fourth power mechanism housing 44 is fixed on the hanger 8. A third motor 60 is fixedly connected inside the fourth power mechanism housing 44. The input end of the third motor 60 is electrically connected to the main control board 80. The output end of the third motor 60 is fixedly connected to a third screw 61. The third screw 61 is meshed with the sixteenth gear 62. The sixteenth gear 62 and the seventeenth gear 63 rotate coaxially and synchronously inside the fourth power mechanism housing 44. The seventeenth gear 63 is meshed with the eighteenth gear 64. The eighteenth gear 64 rotates coaxially and synchronously with one of the first rollers 9. A second power transmission assembly is installed between the eighteenth gear 64 and the other first roller 9, and they rotate synchronously through the power transmission of the second power transmission assembly;

[0066] The working principle of the second power mechanism is as follows: After the third motor 60 is powered on, it drives the third screw 61 to rotate. The third screw 61 drives the sixteenth gear 62 to rotate. The sixteenth gear 62 drives the seventeenth gear 63 to rotate. The seventeenth gear 63 drives the eighteenth gear 64 to rotate. The eighteenth gear 64 drives one of the first rollers 9 to rotate. The eighteenth gear 64 drives the other first roller 9 to rotate through the second power transmission assembly, so as to make the two first rollers 9 roll.

[0067] As shown in the attached Figure 1 attachment Figure 2 attachment Figure 6 attachment Figure 8 attachment Figure 11 and attachment Figure 12 As shown in the figure, the second power transmission assembly includes a first power mechanism housing 10, a through shaft 45, a seventh gear 46, an eighth gear 47, and a nineteenth gear 65. The nineteenth gear 65 is meshed with the eighteenth gear 64. The nineteenth gear 65 is fixedly sleeved on one end of the through shaft 45. The through shaft 45 rotates through the fourth power mechanism housing 44 and the hanger 8. A seventh gear 46 is fixedly sleeved on the other end of the through shaft 45. The seventh gear 46 is meshed with the eighth gear 47. The eighth gear 47 rotates coaxially and synchronously with the other first roller 9. The first power mechanism housing 10 is fixed on the hanger 8. The through shaft 45 rotates through the side surface of the first power mechanism housing 10. Both the seventh gear 46 and the eighth gear 47 are located inside the first power mechanism housing 10;

[0068] The tooth number ratio of the seventh gear 46 and the eighth gear 47 is equal to the tooth number ratio of the nineteenth gear 65 and the eighteenth gear 64, so that the rotational speeds of the front and rear first rollers 9 are equal;

[0069] The working principle of the second power transmission component is as follows: The eighteenth gear 64 drives the nineteenth gear 65 to rotate, the nineteenth gear 65 drives the through shaft 45 to rotate, the through shaft 45 drives the seventh gear 46 to rotate, the seventh gear 46 drives the eighth gear 47 to rotate, and the eighth gear 47 drives the first roller 9 to rotate.

[0070] As shown in the attached Figure 1 , attached Figure 2 , attached Figure 6 , attached Figure 9 , and attached Figure 10 As shown in Figure 10 , the charging pack transmission device includes a power component, a transmission mechanism housing 22, a third power transmission component, a lead screw 16, and a nut 70. The lead screw 16 is fixed between two port brackets 3. The two ends of the lead screw 16 respectively thread through the two nuts 70. The two nuts 70 respectively rotate within the two transmission mechanism housings 22. The two transmission mechanism housings 22 are respectively fixedly connected to the upper sides of the front sub-rail 18 and the rear sub-rail 18.

[0071] The power component is installed on the upper side of the charging pack 6. When the charging pack 6 moves below the sub-rail 18, the output end of the power component is connected to the input end of the third power transmission component. The third power transmission component is installed within the transmission mechanism housing 22. The output end of the third power transmission component drives the nut 70 to rotate.

[0072] The working principle of the charging pack transmission device is as follows: The power component drives the nut 70 to rotate forward and backward through the third power transmission component. Since the nut 70 is threadedly sleeved outside the lead screw 16, the nut 70 moves forward and backward while rotating forward and backward, causing the nut 70 to push the transmission mechanism housing 22 forward and backward, and the transmission mechanism housing 22 drives the sub-rail 18 to move forward and backward.

[0073] As shown in the attached Figure 1 , attached Figure 2 , attached Figure 6 , attached Figure 9 , and attached Figure 10As shown in the figure, the power assembly includes the housing 12 of the second power mechanism, the ninth gear 49, the tenth gear 50, the eleventh gear 51, the twelfth gear 52, the thirteenth gear 53, the second motor 54, the second screw 55 and the fourteenth gear 56. The housing 12 of the second power mechanism is fixed to the upper side of the charging pack 6. A second motor 54 is fixedly connected inside the housing 12 of the second power mechanism. The input end of the second motor 54 is electrically connected to the main control board 80. The output end of the second motor 54 is fixedly connected to a second screw 55. The second screw 55 is in meshing engagement with the fourteenth gear 56. The fourteenth gear 56 and the thirteenth gear 53 rotate coaxially and synchronously inside the housing 12 of the second power mechanism. The thirteenth gear 53 is in meshing engagement with the eleventh gear 51. The eleventh gear 51 and the twelfth gear 52 rotate coaxially and synchronously inside the housing 12 of the second power mechanism. The twelfth gear 52 is in meshing engagement with the tenth gear 50. The tenth gear 50 and the ninth gear 49 rotate coaxially and synchronously. The ninth gear 49 is the output end of the power assembly and is located outside the housing 12 of the second power mechanism. A gear notch 48 is provided on the side of the ninth gear 49;

[0074] The third power transmission assembly includes a first bevel gear 57, a second bevel gear 58 and a fifteenth gear 59. When the charging pack 6 moves below the secondary track 18, the ninth gear 49 moves below the fifteenth gear 59. Due to the gear notch 48 on the ninth gear 49, the ninth gear 49 is temporarily not in meshing engagement with the fifteenth gear 59, preventing the fifteenth gear 59 from blocking the ninth gear 49 when the ninth gear 49 moves left and right. When the ninth gear 49 rotates, the ninth gear 49 is in meshing engagement with the fifteenth gear 59. The fifteenth gear 59 and the second bevel gear 58 rotate coaxially and synchronously. The rotating shafts of the fifteenth gear 59 and the second bevel gear 58 pass through the transmission mechanism housing 22, such that the fifteenth gear 59 is located outside the transmission mechanism housing 22 while the second bevel gear 58 is located inside the transmission mechanism housing 22. The second bevel gear 58 is in meshing engagement with the first bevel gear 57. The first bevel gear 57 is fixedly sleeved outside the nut 70;

[0075] The working principle of the power assembly and the third power transmission assembly is as follows: After the second motor 54 is powered on, it drives the second screw 55. The second screw 55 drives the fourteenth gear 56 to rotate. The fourteenth gear 56 drives the thirteenth gear 53 to rotate. The thirteenth gear 53 drives the eleventh gear 51 to rotate. The eleventh gear 51 drives the twelfth gear 52 to rotate. The twelfth gear 52 drives the tenth gear 50 to rotate. The tenth gear 50 drives the ninth gear 49 to rotate. The ninth gear 49 drives the fifteenth gear 59 to rotate. The fifteenth gear 59 drives the second bevel gear 58 to rotate. The second bevel gear 58 drives the first bevel gear 57 to rotate. The first bevel gear 57 drives the nut 70 to rotate.

[0076] As attached Figure 1 、attached Figure 2 and attachedFigure 6 As shown in the figure, sockets 5 are fixedly connected to both the front and rear sides of the suspension bracket. Plugs 4 are fixedly connected inside both port brackets 3. After the suspension bracket moves forward, the front plug 4 is inserted into the front socket 5. After the suspension bracket moves backward, the rear plug 4 is inserted into the rear socket 5. The plug 4 is electrically connected to the main control board 80, and the socket 5 is electrically connected to the charging cable 27. The charging cable 27 is electrically connected to the main control board 80 through the socket 5 and the plug 4.

[0077] As shown in the attached Figure 1 figure, a calibration rod 13 is fixedly connected to the upper side of the charging pack 6, and a calibration ring 14 is integrally formed on the lower side of the port bracket 3. When the charging pack 6 moves to the lower part of the port bracket 3, the calibration rod 13 is movably inserted into the calibration ring 14. In order to facilitate the accurate and deviation-free insertion of the calibration rod 13 into the calibration ring 14, both the front and rear ends of the calibration rod 13 are in the shape of sharp cones.

[0078] As shown in the attached Figure 2 , attached Figure 6 and attached Figure 11 figure, positioning brackets 71 are fixedly connected to both the front and rear ends of one of the support ribs 2. Sensors 72 are fixedly connected to the upper sides of the first carriage 15 and the third carriage 23. After the plug 4 and the socket 5 are plugged in, the sensor 72 moves directly below the positioning bracket 71.

[0079] The overall working principle is as follows:

[0080] The suspension bracket and the ceiling main track 1 are hung on the roof. The hanger drives the charging pack 6 to move left and right until the hanger and the charging pack 6 move directly below the suspension bracket. The hanger is on the secondary track 18. At this time, the output end of the power assembly is connected to the input end of the third power transmission assembly, that is, the ninth gear 49 meshes with the fifteenth gear 59, so that the charging pack transmission device drives the secondary track 18 to move back and forth;

[0081] The initial state is state b;

[0082] Referring to the attached Figure 14 figure, when the charging pack 6 is needed in the rear area of the suspension bracket, the hanger and the charging pack 6 move to the rear secondary track 18. The positions of the three secondary tracks 18 are switched from state b back to state c, that is, the rear secondary track 18 moves backward, driving the hanger and the charging pack 6 to move backward. The charging pack 6 charges the vehicle behind the device. And when the rear secondary track 18 moves backward, it will drive the front secondary track 18 and the third carriage 23 to move backward together through the first telescopic rod 17 and the second telescopic rod 21 to reach state c. In addition, when in state b, the hanger can also directly move to the left ceiling main track 1 or the right ceiling main track 1 through the rear secondary track 18 to charge the vehicle on the left or right side of the device;

[0083] Similarly, when the charging pack 6 is needed in the front area of the suspension rack, the hanger and the charging pack 6 move to the front auxiliary track 18, and the positions of the three auxiliary tracks 18 are changed from the c state to the a state, that is, the front auxiliary track 18 moves forward, and the middle auxiliary track 18 moves between the two ceiling main tracks 1, so that the front auxiliary track 18 drives the hanger and the charging pack 6 to move forward, and the charging pack 6 charges the vehicle in front of the device. At this time, the rear auxiliary track 18 and the first carriage 15 do not move and return to the a state. In addition, when in the c state, the hanger can also directly move to the left ceiling main track 1 or the right ceiling main track 1 through the auxiliary track 18 to charge the vehicle on the left or right of the device;

[0084] Similarly, when there are vehicles using the charging pack 6 in both the front area and the rear area of the suspension rack, the positions of the three auxiliary tracks 18 are as shown in the a state, so that the hanger and the charging pack 6 can smoothly pass through the middle auxiliary track 18 and move to another ceiling main track 1 to charge the vehicle on the right or left of the device;

[0085] In addition, based on the above, the working principles of the trapezoidal top block 11, the first telescopic rod 17, the second telescopic rod 21, the elastic rod 67 and the card seat 68 are explained:

[0086] When in the a state, the hanger smoothly passes through the middle auxiliary track 18;

[0087] When in the b state, the front end of the first telescopic rod 17 passes forward through the inner through hole of the third carriage 23, and the elastic rod 67 presses the card seat 68 downward, so that the card seat 68 downwardly clamps the convex portion 37 at the front end of the first telescopic rod 17. The rear end of the second telescopic rod 21 passes through the inner through hole of the first carriage 15, and the elastic rod 67 presses the card seat 68 downward, so that the card seat 68 downwardly clamps the convex portion 37 at the rear end of the second telescopic rod 21. When the hanger moves to the auxiliary track 18 on the first carriage 15, the trapezoidal top block 11 upwardly pushes the card seat 68 on the first carriage 15, so that the card seat 68 disengages from the rear end of the second telescopic rod 21;

[0088] When converting from the b state to the c state, the auxiliary track 18 on the first carriage 15 drives the hanger and the charging pack 6 to move backward. At the same time, it will drive the front auxiliary track 18 and the third carriage 23 to move backward together through the first telescopic rod 17 and the second telescopic rod 21, and push the second carriage 19 to move backward together until the auxiliary track 18 on the third carriage 23 moves between the two ceiling main tracks 1, that is, in the c state;

[0089] When in the c state, the next hanger drives the charging pack 6 to move rightward to the auxiliary track 18 on the third carriage 23. At this time, the trapezoidal top block 11 upwardly pushes the card seat 68 on the third carriage 23, so that the card seat 68 disengages from the front end of the first telescopic rod 17;

[0090] When there are hangers and charging packs 6 on both the auxiliary track 18 on the first carriage 15 and the auxiliary track 18 on the third carriage 18, the third carriage 23 and the front auxiliary track 18 move forward. It should be noted that the clamping seats 68 on the first carriage 15 and the third carriage 23 are both pushed upwards. At this time, the first telescopic rod 17 can pass through the inner perforation in the third carriage 23, and the second telescopic rod 21 can pass through the inner perforation in the first carriage 21. Then, the rear end of the second telescopic rod 121 pulls the second carriage 19 forward to return to state a.

[0091] It should be noted that in the description of the present utility model, the terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0092] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0093] So far, the technical solutions of the present utility model have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. A charging pack for automatically retracting and extending a charging cable, characterized in that, It includes a charging pack (6), a wire reel (26) and a third power mechanism. A reel shaft (24) is fixedly connected inside the charging pack (6). A wire reel (26) is rotatably sleeved outside the reel shaft (24). A charging wire (27) is wound inside the wire reel (26). One end of the charging wire (27) is connected to an external mains power supply, and the other end of the charging wire (27) passes out of the front end of the wire reel (26) movably and is fixedly connected to a charging head (69). A charging head protective sleeve (7) passes through the lower end of the charging pack (6). The charging wire (27) passes through the charging head protective sleeve (7) movably. The charging head (69) is located inside the charging head protective sleeve (7). A third power mechanism is installed inside the charging pack (6), and the third power mechanism drives the charging wire (27) to enter and exit the charging pack (6).

2. The charging pack for an automatically retractable charging cable according to claim 1, wherein The third power mechanism includes a spring (28), a wire clamping wheel (29), a rotating frame (31), a third power mechanism housing (33), a motor housing (34), a first screw (38), a third gear (39), a fourth gear (40), a fifth gear (41), a first motor (42) and a first power transmission component. The inside of the third power mechanism housing (33) and the motor housing (34) are in communication and are both fixed inside the charging pack (6). A first motor (42) is fixedly connected inside the motor housing (34). The input end of the first motor (42) is electrically connected to the output end of the external mains power supply. The output end of the first motor (42) is fixedly connected to a first screw (38). The first screw (38) is meshed with the third gear (39) in terms of teeth. The third gear (39) and the fourth gear (40) rotate coaxially and synchronously inside the third power mechanism housing (33). The fourth gear (40) is meshed with the fifth gear (41) in terms of teeth. The fifth gear (41) rotates inside the third power mechanism housing (33) through a rotating shaft; One end of the rotating frame (31) rotates through a rotating shaft on the side of the third power mechanism housing (33). The other end of the rotating frame (31) is fixedly connected to a spring (28). The other end of the spring (28) is fixedly connected to one end of a support rod (35). The other end of the support rod (35) is fixedly connected to the third power mechanism housing (33). Wire clamping wheels (29) are rotatably arranged on the side surfaces of both the rotating frame (31) and the third power mechanism housing (33). The fifth gear (41) rotates coaxially and synchronously with the wire clamping wheel (29) on the third power mechanism housing (33). A first power transmission component is installed between the fifth gear (41) and the wire clamping wheel (29) on the rotating frame (31). The fifth gear (41) drives the wire clamping wheel (29) on the rotating frame (31) to rotate through the first power transmission component. The charging wire (27) passes through the space between the two wire clamping wheels (29) movably.

3. The charging pack for automatically retracting and extending a charging cable according to claim 2, wherein, The outside diameter of the addendum circle of the third gear (39) is greater than that of the fourth gear (40), and the number of teeth of the third gear (39) is greater than that of the fourth gear (40). The outside diameter of the addendum circle of the fifth gear (41) is greater than that of the fourth gear (40), and the number of teeth of the fifth gear (41) is greater than that of the fourth gear (40).

4. The charging pack for automatically retracting and extending a charging cable according to claim 2, wherein, The first power transmission assembly includes a first gear (30), a second gear (32), a sixth gear (43) and a twentieth gear (66). The twentieth gear (66) rotates within the housing (33) of the third power mechanism by means of a rotating shaft. The twentieth gear (66) meshes with the fifth gear (41) and also meshes with the sixth gear (43). The sixth gear (43) rotates coaxially and synchronously with the second gear (32). The rotating shaft of the sixth gear (43) and the second gear (32) passes through the front side of the housing (33) of the third power mechanism and the rear side of the rotating frame (31), enabling the rotating frame (31) to rotate around the rotating shaft of the sixth gear (43) and the second gear (32). The second gear (32) meshes with the first gear (30), and the first gear (30) is fixed to the end of the rotating shaft of the wire clamping wheel (29) located on the rotating frame (31).

5. The charging pack for an automatically retractable charging cable according to claim 4, characterized in that, The tooth number ratio of the first gear (30) to the second gear (32) is equal to the tooth number ratio of the sixth gear (43) to the fifth gear (41), such that the rotational speeds of the two wire clamping wheels (29) are equal.

6. The charging pack for automatically retracting and extending a charging cable according to claim 1, wherein, Threading holes (25) are circularly arrayed on the rear side of the wire winding wheel (26). One end of the charging wire (27) movably passes through the threading holes (25) and is connected to an external mains power supply.

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