A charging device for new energy vehicles

Abstract

The application discloses a charging device for new energy vehicles, and belongs to the technical field of new energy vehicles, which comprises a bottom plate, a square shell and a fan-shaped shell fixedly installed on the bottom plate, a transfer assembly, a protection assembly and an auxiliary assembly arranged on the bottom plate, the transfer assembly can realize calling of a charging plug and a charging wire, the charging plug and the charging wire are located inside the device when not in use, so that damage of the charging wire and the charging plug caused by external environment is avoided, the auxiliary assembly can realize automatic winding and unwinding of the charging wire, damage caused by stacking of the charging wire is avoided, and the charging port of the device and the charging port of the vehicle can be connected without external charging wire, charging operation steps are reduced, and the protection assembly can separate two contacted conductive blocks when charging is completed, so that the charging wire and the charging plug after charging are completely de-energized, and the safety of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle technology, and in particular to a charging device for new energy vehicles. Background Technology

[0002] New energy vehicles are charged through charging piles, which are generally installed in public buildings (public buildings, shopping malls, public parking lots, etc.) and residential parking lots or charging stations. They can charge various models of electric vehicles according to different voltage levels. The charging plugs and charging cables of existing charging piles are exposed to the external environment for a long time. Under the influence of the external environment, the lifespan of the charging plugs and charging cables will be reduced, and they will also be prone to damage and leakage.

[0003] Chinese patent application CN212950180U discloses a charging device for charging new energy vehicles, including a frame. A control board is fixed inside the frame by bolts, and a temperature sensor is soldered to the surface of the control board. Two fans are symmetrically fixed to the bottom sides of the frame by screws. A cooling fan is connected to the right end of the fan via a motor shaft. A base is integrally formed at the bottom of the frame. Although the above has the function of charging new energy vehicles, it requires an external charging cable to connect the charging port of the device to the charging port of the car. It cannot automatically retract the external charging cable, and the charging port is exposed to the external environment for a long time, which is prone to damage. Therefore, this invention provides a charging device for new energy vehicles. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a charging device for new energy vehicles. It overcomes the problems of requiring an external charging cable to connect the device's charging port to the vehicle's charging port, the inability to automatically retract the external charging cable, and the charging port being easily damaged due to long-term exposure to the external environment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a charging device for new energy vehicles, comprising a base plate, on which a square shell and a sector-shaped shell are fixedly mounted; a cover plate is fixedly mounted on the square shell; the sector-shaped shell and the cover plate are fixedly connected; a transfer assembly is provided on the base plate; the transfer assembly includes a transfer support base; a first transfer strip and a second transfer strip are rotatably mounted on the transfer support base; an L-shaped slide block is slidably mounted on both the first and second transfer strips; a take-up reel is rotatably mounted on the L-shaped slide block; a torsion spring is provided between the L-shaped slide block and the take-up reel; a charging cable is provided on the take-up reel; a conductive cylinder is provided at one end of the charging cable, which is fixedly mounted on the take-up reel; a charging plug is provided at the other end of the charging cable; an L-shaped baffle is fixedly mounted on the L-shaped slide block; and the charging plug and... The L-shaped baffle is movably connected. The base plate is equipped with protective and auxiliary components. The protective components include the charging pile body and a splined shaft slidably mounted on the take-up reel. A conductive block is fixedly mounted at the end of the splined shaft. The conductive block on the splined shaft slides in cooperation with the conductive cylinder. Insulating cylinders are fixedly mounted on both sides of the charging pile body. Conductive blocks are fixedly installed inside the insulating cylinders. The conductive blocks inside the insulating cylinders are all connected to the charging pile body. The auxiliary components include symmetrically fixed upper limit cylinders mounted on the base plate. Limiting screws are slidably mounted inside the limiting cylinders. Transmission pulleys are symmetrically rotatably mounted on the base plate. The limiting screws and transmission pulleys form a helical pair. Limiting sleeves are fixedly mounted on both transfer plate one and transfer plate two. The limiting sleeves and limiting screws are used to limit the rotation of transfer plate one and transfer plate two.

[0006] Furthermore, the transfer assembly also includes a U-shaped support frame fixedly mounted on the base plate, a transfer support seat fixedly mounted on the fan-shaped housing, two drive pulleys rotatably mounted on the U-shaped support frame, and long arm rotating plate one and long arm rotating plate two rotatably mounted on the two drive pulleys respectively, with friction between long arm rotating plate one and the corresponding drive pulley, and friction between long arm rotating plate two and the corresponding drive pulley.

[0007] Furthermore, a drive gear is rotatably mounted on the transfer support base, and multiple teeth are fixedly provided at the end of the first transfer plate. The drive gear and the first transfer plate mesh to form a gear pair. The first long arm rotating plate and the drive gear are rotatably engaged. A torsion spring is provided between the first long arm rotating plate and the drive gear. The second long arm rotating plate and the second transfer plate are rotatably engaged. A torsion spring is provided between the second long arm rotating plate and the second transfer plate. A trapezoidal limiting plate is fixedly provided on the transfer support base, and limiting short posts are fixedly provided on both sides of the transfer support base. The limiting short posts and the trapezoidal limiting plate are used to limit the rotational position of the first transfer plate and the second transfer plate.

[0008] Furthermore, two sector plates are fixedly installed at both ends of the L-shaped baffle, and sector side plates are symmetrically fixedly installed on the square shell. The outer side surface of the sector plate on the L-shaped baffle that is farthest from the sector shell coincides with the inner side surface of the sector side plate, and the outer side surface of the sector plate on the L-shaped baffle that is closest to the sector shell coincides with the inner side surface of the sector shell. The inner diameter of the sector side plate is the same as the inner diameter of the sector shell.

[0009] Furthermore, the protective assembly also includes U-shaped slide plate one and U-shaped slide plate two. U-shaped slide plate one is slidably mounted on the side of the L-shaped slide block. U-shaped slide plate one is rotatably connected to the spline shaft. A spring is provided between U-shaped slide plate one and the L-shaped slide block. U-shaped slide plate two is slidably mounted on the lower end face of the L-shaped slide block. The spline shaft and U-shaped slide plate two are fixedly connected. The spline shaft and the take-up reel form a spline sliding fit. A spring is provided between transfer plate two and the corresponding L-shaped slide block. A spring is provided between transfer plate one and the corresponding L-shaped slide block.

[0010] Furthermore, a transmission ring plate 2 is fixedly installed at the end of the long arm rotating plate 1, and a transmission ring plate 1 is fixedly installed at the end of the long arm rotating plate 2. Multiple teeth are provided on the inner side of the transmission ring plate 2, and multiple teeth are provided on the outer side of the transmission ring plate 1. Strip-shaped push plates are rotatably installed on both sides of the transfer support base. Auxiliary push rods are fixedly installed on the U-shaped sliding plate 2. Driven gears are fixedly installed on the strip-shaped push plates. When the transmission ring plate 1 and the transmission ring plate 2 are engaged with the corresponding driven gears, they form a gear pair.

[0011] Furthermore, the auxiliary components also include two gearboxes, which are symmetrically fixedly installed inside the square housing. An auxiliary pulley is fixedly installed on the input shaft of each gearbox, and a take-up slab is rotatably installed on the output shaft of each gearbox. There is friction between the output shaft of the gearbox and the take-up slab. A fan-shaped slab is also fixedly installed inside the square housing. A drive shaft is rotatably installed on each L-shaped slide. A transmission assembly is provided between the drive shaft and the take-up reel. The drive shaft is provided with a groove that mates with the fan-shaped slab. The thickness of the fan-shaped slab is the same as the thickness of the take-up slab.

[0012] Furthermore, the limiting cylinder and the limiting screw form a spline sliding fit, an auxiliary pulley two is fixedly installed on the transmission pulley, an auxiliary belt is provided between the auxiliary pulley two and the auxiliary pulley one, and a transmission belt is provided between the transmission pulley and the corresponding drive pulley.

[0013] Furthermore, radiators are symmetrically fixed on the base plate, maintenance auxiliary plates are movably mounted on the square shell, arc-shaped notches are symmetrically arranged on the fan-shaped shell, and the charging pile body is fixedly installed inside the fan-shaped shell.

[0014] The beneficial effects of this invention compared with the prior art are as follows: (1) By setting a transfer component, this invention can realize the calling of the charging plug and charging cable. When the charging plug and charging cable are not in use, they are located inside the device, avoiding damage to the charging cable and charging plug caused by the external environment. (2) By setting an auxiliary component, this invention can realize the automatic winding and unwinding of the charging cable, avoiding damage caused by stacking the charging cable, and also avoiding the need for an external charging cable to connect the charging port of the device and the charging port of the car, reducing the charging operation steps. (3) By setting a protection component, this invention can separate the two contacting conductive circles when charging is completed, thereby completely de-energizing the charging cable and charging plug after charging is completed, thus improving the safety of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the internal structure of the square shell of the present invention.

[0017] Figure 3 This is a schematic diagram of the structure of the heat sink of the present invention.

[0018] Figure 4 This is a top view of the internal structure of the square shell of the present invention.

[0019] Figure 5 This is a schematic diagram of the structure of the transfer component of the present invention.

[0020] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.

[0021] Figure 7 This is a schematic diagram of the structure of the L-shaped shielding plate of the present invention.

[0022] Figure 8 for Figure 7 A magnified view of a portion of point B in the middle.

[0023] Figure 9 This is a schematic diagram of the structure of the auxiliary component of the present invention. Figure 1 .

[0024] Figure 10 for Figure 9 A magnified view of a portion of point C.

[0025] Figure 11 for Figure 9 A magnified view of a portion of point D.

[0026] Figure 12 This is a schematic diagram of the structure of the auxiliary component of the present invention. Figure 2 .

[0027] Figure 13 This is a schematic diagram of the structure of the transfer support base of the present invention.

[0028] Figure 14 This is a schematic diagram of the strip pusher plate of the present invention.

[0029] Figure 15 This is a schematic diagram of the structure of the L-shaped slide of the present invention.

[0030] Figure 16 This is a schematic diagram of the structure of the charging pile body of the present invention.

[0031] Figure 17 This is a schematic diagram of the structure of the winding reel of the present invention.

[0032] Figure 18 This is a schematic diagram of the structure of the conductive cylinder in this invention.

[0033] Figure 19 This is a cross-sectional view of the winding reel of the present invention.

[0034] Reference numerals: 101-Base plate; 102-Square shell; 103-Cover plate; 104-Radiator; 105-Maintenance auxiliary plate; 106-Charging pile body; 107-Charging cable; 108-Charging plug; 109-U-shaped support frame; 110-L-shaped shield; 111-Fan-shaped shell; 112-Fan-shaped strip; 113-Gearbox; 114-Transfer strip one; 115-Transfer strip two; 116-Rewinding strip; 117-Transfer support base; 118-Limiting short column; 119-L-shaped slide; 120-Limiting sleeve; 121-Auxiliary pulley one; 122-Auxiliary belt; 123-Trapezoidal limiting plate; 124-Insulating cylinder; 125 - Reel; 126- Conductive block; 127- Limiting cylinder; 128- Limiting screw; 129- Transmission pulley; 130- Transmission belt; 131- Auxiliary pulley II; 132- Drive motor I; 133- Drive motor II; 134- Drive pulley; 135- Long arm rotating plate I; 136- Long arm rotating plate II; 137- Transmission assembly; 138- U-shaped slide plate I; 139- Splined shaft; 140- U-shaped slide plate II; 141- Auxiliary push rod; 142- Transmission ring plate I; 143- Transmission ring plate II; 144- Strip push plate; 145- Driven gear; 146- Drive gear; 147- Conductive cylinder; 148- Fan-shaped side plate; 149- Transmission shaft. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0036] Example: Reference Figures 1-19A charging device for new energy vehicles includes a base plate 101, on which a square housing 102 and a fan-shaped housing 111 are fixedly mounted. A cover plate 103 is fixedly mounted on the square housing 102. The fan-shaped housing 111 and the cover plate 103 are fixedly connected. A radiator 104 is symmetrically fixedly arranged on the base plate 101 for dissipating heat from the inside of the square housing 102. A maintenance auxiliary plate 105 is movably arranged on the square housing 102. The square housing 102 and the maintenance auxiliary plate 105 are fixedly connected by bolts. The maintenance auxiliary plate 105 is used to facilitate the internal maintenance of the square housing 102.

[0037] A transfer assembly is provided on the base plate 101. The transfer assembly includes a transfer support base 117, which is fixedly mounted on the sector-shaped housing 111. A first transfer strip 114 and a second transfer strip 115 are rotatably mounted on the transfer support base 117. An L-shaped slide block 119 is slidably mounted on both the first transfer strip 114 and the second transfer strip 115. A spring is provided between the second transfer strip 115 and the corresponding L-shaped slide block 119. A spring is also provided between the first transfer strip 114 and the corresponding L-shaped slide block 119. A take-up reel 125 is rotatably mounted on the 9th section. A torsion spring is provided between the take-up reel 125 and the L-shaped slide 119. A charging cable 107 is provided on the take-up reel 125 and wound around the take-up reel 125. One end of the charging cable 107 is provided with a conductive cylinder 147, which is fixedly mounted on the take-up reel 125. The other end of the charging cable 107 is provided with a charging plug 108. An L-shaped baffle 110 is fixedly provided on the L-shaped slide 119. The charging plug 108 is movably connected to the corresponding L-shaped baffle 110.

[0038] A U-shaped support frame 109 is fixedly installed on the base plate 101. Two drive pulleys 134 are rotatably installed on the U-shaped support frame 109. Long arm rotating plate one 135 and long arm rotating plate two 136 are rotatably installed on the two drive pulleys 134 respectively. There is friction between long arm rotating plate one 135 and the corresponding drive pulley 134, and there is friction between long arm rotating plate two 136 and the corresponding drive pulley 134. The U-shaped support frame 109 is also fixedly installed with drive motor one 132 and drive motor two 133. The output shaft of drive motor one 132 is fixedly connected to the drive pulley 134 on which long arm rotating plate one 135 is rotatably installed, and the output shaft of drive motor two 133 is fixedly connected to the drive pulley 134 on which long arm rotating plate two 136 is rotatably installed.

[0039] A drive gear 146 is rotatably mounted on the transfer support 117. Multiple teeth are fixedly arranged at the end of the first transfer plate 114. The drive gear 146 and the first transfer plate 114 mesh to form a gear pair. The first long arm rotating plate 135 rotatably engages with the drive gear 146. A torsion spring is provided between the first long arm rotating plate 135 and the drive gear 146. The elastic force of the torsion spring between the first long arm rotating plate 135 and the drive gear 146 is always less than the frictional force between the drive pulley 134 and the first long arm rotating plate 135. The second long arm rotating plate 136 and the transfer plate... The second 115 rotates and engages, and a torsion spring is provided between the second long arm rotating plate 136 and the second transfer plate 115. The elastic force of the torsion spring between the second long arm rotating plate 136 and the second transfer plate 115 is always less than the frictional force between the drive pulley 134 and the second long arm rotating plate 136. A trapezoidal limiting plate 123 is fixedly provided on the transfer support 117, and limiting short columns 118 are fixedly provided on both sides of the transfer support 117. The limiting short columns 118 and the trapezoidal limiting plate 123 are used to limit the rotational position of the first transfer plate 114 and the second transfer plate 115.

[0040] Two sector plates are fixedly installed at both ends of the L-shaped baffle 110. Sector-shaped side plates 148 are symmetrically fixedly installed on the square shell 102. The outer side of the sector plate on the L-shaped baffle 110 that is farthest from the sector shell 111 coincides with the inner side of the sector side plate 148. The outer side of the sector plate on the L-shaped baffle 110 that is closest to the sector shell 111 coincides with the inner side of the sector shell 111. The inner diameter of the sector side plate 148 is the same as the inner diameter of the sector shell 111. Arc-shaped notches are symmetrically installed on the sector shell 111.

[0041] In the initial position, transfer plate 114 and transfer plate 215 are in contact with the two sides of trapezoidal limiting plate 123 respectively. The torsion spring between long arm rotating plate 2136 and transfer plate 215 is not compressed, while the torsion spring between long arm rotating plate 135 and drive gear 146 is compressed. At this time, the arc plate on the two L-shaped blocking plates 110 that is closest to the fan-shaped housing 111 covers the two arc-shaped notches on the fan-shaped housing 111. The two charging plugs 108 are located inside the square housing 102. That is, at this time, the interior of the square housing 102 and the fan-shaped housing 111 is in a sealed state to avoid the influence of changes in the external environment on the interior. Under the action of the spring between transfer plate 114 and L-shaped slide 119 and the spring between transfer plate 215 and L-shaped slide 119, the two L-shaped slides 119 are located at the position farthest from the transfer support seat 117, and long arm rotating plate 135 and long arm rotating plate 2136 are in contact.

[0042] When the charging plug 108 on the transfer plate 114 needs to be used, the drive motor 132 is started to drive the drive pulley 134, on which the long arm rotating plate 135 is mounted, to rotate. Under the action of the friction between the drive pulley 134 and the long arm rotating plate 135, the long arm rotating plate 135 rotates synchronously. Under the action of the torsion spring between the long arm rotating plate 135 and the drive gear 146, the long arm rotating plate 135 and the drive gear 146 rotate synchronously, thereby driving the transfer plate 114 to move away from the trapezoidal limiting plate 123. The L-shaped slide 119 on the transfer plate 114 rotates synchronously. The baffle plate 110 also rotates synchronously. The arc plate on the L-shaped baffle plate 110 closest to the fan-shaped housing 111 gradually releases its obstruction of the arc-shaped notch on the fan-shaped housing 111 closest to the transfer strip 114. Finally, the transfer strip 114 contacts the limiting short post 118 furthest from the drive gear 146. At this time, the arc plate on the L-shaped baffle plate 110 closest to the fan-shaped housing 111 completely releases its obstruction of the arc-shaped notch on the fan-shaped housing 111 closest to the transfer strip 114. At this time, the charging plug 108 on the L-shaped baffle plate 110 is outside the square housing 102, thus realizing the use of the charging plug 108.

[0043] When the charging plug 108 on the transfer plate 2 115 needs to be called, the drive motor 2 133 is started to drive the long arm rotating plate 2 136 to rotate. Following the same steps, the transfer plate 2 115 contacts the limiting short post 118 closest to the drive gear 146. At this time, the arc plate on the L-shaped shield 110 closest to the fan-shaped housing 111 moves to the position of the arc-shaped notch on the unshielded fan-shaped housing 111 closest to the transfer plate 114. At this time, the charging plug 108 on the L-shaped shield 110 is outside the square housing 102, thus realizing the calling of the charging plug 108.

[0044] A protective assembly is provided on the base plate 101. The protective assembly includes a charging pile body 106 and a spline shaft 139 slidably mounted on a take-up reel 125. The spline shaft 139 and the take-up reel 125 form a spline sliding fit. The charging pile body 106 is fixedly mounted inside the fan-shaped housing 111. A conductive block 126 is fixedly provided at the end of the spline shaft 139. The conductive block 126 on the spline shaft 139 is slidably fitted with a conductive cylinder 147. Insulating cylinders 124 are fixedly provided on both sides of the charging pile body 106. The conductive block 126 is fixedly installed inside the insulating cylinder 124. A wire is provided between the conductive block 126 inside the insulating cylinder 124 and the charging pile body 106, so that the conductive block 126 inside the insulating cylinder 124 is connected to the charging pile body 106.

[0045] A U-shaped slide plate 138 is slidably mounted on the side of the L-shaped slide block 119. The U-shaped slide plate 138 and the spline shaft 139 are rotatably connected. A spring is provided between the U-shaped slide plate 138 and the L-shaped slide block 119. A U-shaped slide plate 2 140 is slidably mounted on the lower end face of the L-shaped slide block 119. The spline shaft 139 and the U-shaped slide plate 2 140 are fixedly connected. The spring between the transfer strip 114 and the L-shaped slide block 119 is the same as the spring between the transfer strip 2 115 and the L-shaped slide block 119. The elastic force of the spring between the transfer strip 114 and the L-shaped slide block 119 is always less than the elastic force of the spring between the U-shaped slide plate 138 and the L-shaped slide block 119.

[0046] A transmission ring plate 143 is fixedly installed at the end of the long arm rotating plate 135, and a transmission ring plate 142 is fixedly installed at the end of the long arm rotating plate 136. Multiple teeth are provided on the inner side of the transmission ring plate 143, and multiple teeth are provided on the outer side of the transmission ring plate 142. Strip-shaped push plates 144 are rotatably installed on both sides of the transfer support seat 117. Auxiliary push rods 141 are fixedly installed on the U-shaped sliding plate 140. Driven gears 145 are fixedly installed on the strip-shaped push plates 144. When the transmission ring plate 142 and the transmission ring plate 143 are engaged with the corresponding driven gears 145, they form a gear pair.

[0047] refer to Figure 9 , Figure 10 The drive motor 132 is started, driving the corresponding long arm rotating plate 135 to rotate counterclockwise. Simultaneously, the transmission ring plate 143 rotates counterclockwise, driving the transfer plate 114 to rotate clockwise. This eventually causes the transfer plate 114 to release from the limiting post 118 furthest from the drive gear 146. At this point, the teeth on the transmission ring plate 143 contact the driven gear 145 furthest from the drive gear 146, and the axis of the conductive cylinder 147 on the transfer plate 114 and the axis of the insulating cylinder 124 on the charging pile body 106 are on the same straight line. Under the action of the limiting post 118 furthest from the drive gear 146, the transfer plate 114 cannot continue to rotate, i.e., the drive... The driven gear 146 can no longer rotate, while the long arm rotating plate 135 continues to rotate. The torsion spring between the long arm rotating plate 135 and the drive gear 146 is compressed. The teeth on the transmission ring plate 143 drive the driven gear 145, which is furthest from the drive gear 146, to rotate counterclockwise. This causes the strip push plate 144, which is furthest from the drive gear 146, to rotate counterclockwise. Consequently, the auxiliary push rod 141 on the transfer strip plate 114 moves toward the drive gear 146. Under the action of the spring between the U-shaped slide plate 138 and the L-shaped slide 119, the L-shaped slide 119 moves toward the drive gear 146, and the spring between the transfer strip plate 114 and the L-shaped slide 119 is stretched.

[0048] Ultimately, the end face of the take-up reel 125 on the transfer strip 114 contacts the end face of the insulating cylinder 124 on the charging pile body 106 closest to the take-up reel 125. The strip pusher 144 continues to rotate. Since the take-up reel 125 cannot move further after contacting the insulating cylinder 124, that is, the L-shaped slide 119 cannot move further. This drives the U-shaped slide plate 140 to move relative to the L-shaped slide 119. The spring between the U-shaped slide plate 138 and the L-shaped slide 119 is compressed, which in turn drives the spline shaft 139 to move relative to the take-up reel 125. The spline shaft 139 moves towards the charging pile body 106, causing the conductive block 126 on the spline shaft 139 to move towards the charging pile body 106. The conductive block 126 on the spline shaft 139 slides inside the conductive cylinder 147, eventually causing the conductive block 126 on the spline shaft 139 to contact the conductive block 126 inside the insulating cylinder 124 closest to the take-up reel 125. At this time, the conductive block 126 on the spline shaft 139 has not disengaged from the conductive cylinder 147. Since the conductive block 126 on the spline shaft 139 cannot continue to move after contacting the conductive block 126 inside the insulating cylinder 124, the auxiliary push rod 141 cannot continue. Then, the drive motor 132 is started to drive the corresponding drive pulley 134 to rotate. The drive pulley 134, which is mounted with the long arm rotating plate 135, overcomes the friction between the drive pulley 134 and the long arm rotating plate 135 and rotates relative to the long arm rotating plate 135.

[0049] Following the same steps, start the drive motor 2 133 to drive the corresponding long arm rotating plate 2 136 to rotate counterclockwise, so that the conductive round block 126 on the transfer strip 2 115 can contact the conductive round block 126 on the side of the charging pile body 106.

[0050] An auxiliary assembly is provided on the base plate 101. The auxiliary assembly includes a symmetrically fixed upper limit cylinder 127 installed on the base plate 101. A limit screw 128 is slidably installed inside the limit cylinder 127. The limit cylinder 127 and the limit screw 128 form a spline sliding fit. A transmission pulley 129 is symmetrically rotatably installed on the base plate 101. The limit screw 128 and the transmission pulley 129 form a helical pair. Limit sleeves 120 are fixedly provided on both the first transfer plate 114 and the second transfer plate 115. The limit sleeves 120 and the limit screw 128 are used to limit the rotation of the first transfer plate 114 and the second transfer plate 115.

[0051] Gearboxes 113 are symmetrically fixedly mounted on the inner side of the square housing 102. An auxiliary pulley 121 is fixedly mounted on the input shaft of the gearbox 113. A take-up slab 116 is rotatably mounted on the output shaft of the gearbox 113. There is friction between the output shaft of the gearbox 113 and the take-up slab 116. A sector-shaped slab 112 is also fixedly mounted on the inner side of the square housing 102. A drive shaft 149 is rotatably mounted on each L-shaped slide 119. A transmission assembly 137 is provided between the drive shaft 149 and the take-up reel 125. The transmission assembly 137 includes two pulleys and a belt. The two pulleys in 7 are fixedly mounted on the take-up reel 125 and the drive shaft 149, respectively. The two pulleys on the take-up reel 125 and the drive shaft 149 are connected by a belt in the spline shaft 139. The drive shaft 149 is provided with a groove that mates with the sector strip 112. The thickness of the sector strip 112 is the same as the thickness of the take-up strip 116. An auxiliary pulley 131 is fixedly mounted on the drive pulley 129. An auxiliary belt 122 is provided between the auxiliary pulley 131 and the auxiliary pulley 121. A drive belt 130 is provided between the drive pulley 129 and the corresponding drive pulley 134.

[0052] In the initial position, when both transfer strip 114 and transfer strip 2 115 are in contact with the trapezoidal limiting plate 123, the sliding groove on the drive shaft 149 is engaged with the fan-shaped strip 112, so that the two take-up reels 125 cannot rotate freely. At this time, the charging plug 108 and the L-shaped baffle 110 are engaged, the charging plug 108 cannot move freely, and the upper surface of the take-up strip 116 and the upper surface of the fan-shaped strip 112 are on the same plane. The two limiting screws 128 are located at the position closest to the base plate 101.

[0053] The drive motor 132 is started to drive the drive pulley 134 to rotate, and the transfer plate 114 rotates synchronously. This drives the drive shaft 149 on the transfer plate 114 to move relative to the fan-shaped plate 112. Under the action of the drive belt 130, the drive pulley 129 closest to the transfer plate 114 is driven to rotate. Under the action of the drive pulley 129, the limiting screw 128 slides on the limiting cylinder 127 and slides away from the base plate 101.

[0054] The rotation of the drive pulley 129 causes the auxiliary pulley 131 to rotate synchronously. Under the action of the auxiliary belt 122, the corresponding auxiliary pulley 121 is driven to rotate, which in turn drives the take-up slab 116 to rotate under the action of the gearbox 113. When the drive shaft 149 slides to contact the take-up slab 116, the upper surface of the take-up slab 116 and the upper surface of the sector slab 112 are on the same plane. The drive shaft 149 continues to move, so that the slide of the drive shaft 149 engages with the take-up slab 116. The auxiliary belt 122 continues to rotate. At this time, the take-up slab 116 cannot continue to rotate under the action of the drive shaft 149. That is, the take-up slab 116 overcomes the friction between the take-up slab 116 and the output shaft of the gearbox 113 and rotates.

[0055] Finally, the transfer plate 114 contacts the limiting short post 118. At this time, the upper end face of the limiting screw 128 and the lower end face of the limiting sleeve 120 on the transfer plate 114 are on the same plane, and the drive shaft 149 moves to the point where the axis of the drive shaft 149 and the axis of the output shaft of the gearbox 113 are on the same straight line. The drive shaft 149 on the transfer plate 114 disengages from the sector plate 112, and the drive pulley 134 continues to rotate, causing the conductive block 126 on the transfer plate 114 to engage with the conductive block 126 on the charging pile body 106, and causing the limiting screw 128 to engage with the limiting sleeve 120 on the transfer plate 114. Under the action of the lead screw 128, the transfer strip 114 cannot move freely. At this time, under the action of the gearbox 113, the take-up strip 116 rotates synchronously, thereby driving the drive shaft 149 to rotate. Under the action of the transmission group 137, the take-up reel 125 is driven to rotate. The torsion spring between the take-up reel 125 and the L-shaped slide 119 is compressed, thereby causing the charging cable 107 on the take-up reel 125 to unwind. When the take-up reel 125 rotates, the drive shaft 149 on the take-up reel 125 rotates synchronously. The drive shaft 149 rotates relative to the U-shaped slide 138, and the conductive block 126 on the drive shaft 149 rotates relative to the conductive block 126 on the charging pile body 106.

[0056] Working principle: When charging a new energy vehicle, the drive motor 133 is activated to drive the corresponding drive pulley 134 to rotate, which in turn drives the long arm rotating plate 136 to rotate. Under the action of the torsion spring between the transfer plate 115 and the long arm rotating plate 136, the transfer plate 115 is driven to rotate away from the trapezoidal limit plate 123, eventually causing the transfer plate 115 to contact the corresponding limit post 118 and become immobile. Under the action of the gearbox 113, the axis of the drive shaft 149 and the corresponding receiving shaft are aligned. The axes of the roll plate 116 are on the same straight line. The upper end face of the corresponding limiting screw 128 and the lower end face of the limiting sleeve 120 on the transfer plate 115 are on the same plane. The axes of the corresponding limiting screw 128 and the limiting sleeve 120 on the transfer plate 115 are on the same straight line. The charging plug 108 on the transfer plate 115 is located outside the square housing 102. The arc plate on the L-shaped shield 110 of the transfer plate 115 contacts and blocks the arc notch on the fan-shaped housing 111.

[0057] The second drive motor 133 continues to drive the drive pulley 134 to rotate, and the winding reel 125 on the second transfer plate 115 begins to unwind the charging cable 107, and the charging pile body 106 on the second transfer plate 115 engages with the charging pile body 106, thus connecting the charging cable 107. Then, by manually pulling the charging plug 108, the charging cable 107 is pulled out from the L-shaped baffle 110, and the charging plug 108 is connected to the car charging port. Under the action of the charging pile body 106, the charging cable 107, and the charging plug 108, the car is charged.

[0058] After charging is completed, the power output is stopped by the charging pile body 106, and the drive motor 133 is started to drive the drive pulley 134 to rotate in the opposite direction. Since the limiting sleeve 120 and the limiting screw 128 are in the engaged state, the transfer plate 115 cannot move, which causes the long arm rotating plate 136 to rotate relative to the transfer plate 115. This causes the strip push plate 144 to release its support on the auxiliary push rod 141, so that the conductive block 126 on the transfer plate 115 disengages from the conductive block 126 on the charging pile body 106. This causes the charging cable 107 to disengage from the charging pile body 106, preventing leakage due to damage to the charging cable 107 and the charging plug 108 when the charging plug 108 is removed, thereby improving the safety of the device.

[0059] After the charging plug 108 is removed, the second drive motor 133 continues to drive the drive pulley 134 to rotate in the opposite direction, and the second long arm rotating plate 136 continues to rotate in the opposite direction. Eventually, the second long arm rotating plate 136 returns to contact with the first long arm rotating plate 135. Under the action of the first long arm rotating plate 135, the second long arm rotating plate 136 can no longer rotate, that is, the second long arm rotating plate 136 returns to its initial position. The drive pulley 134 then rotates in the opposite direction, causing the take-up strip plate 116 to rotate in the opposite direction, that is, driving the take-up reel 125 to rotate in the opposite direction, thus achieving the winding of the charging cable 107. Finally, the limit screw 128 disengages and the transfer strip... When the limiting sleeve 120 on plate 115 contacts, the charging plug 108 moves to the inside of the fan-shaped housing 111, and the drive pulley 134 continues to rotate, so that the upper surface of the take-up strip 116 and the upper surface of the fan-shaped strip 112 are on the same plane. Under the action of the torsion spring between the long arm rotating plate 136 and the transfer strip 115, the transfer strip 115 returns to its initial position and contacts the trapezoidal limiting plate 123. Under the action of the torsion spring between the take-up reel 125 and the L-shaped slide 119, the take-up reel 125 achieves complete take-up of the charging cable 107.

[0060] When two new energy vehicles need to be charged, the drive motor 132 is started to drive the transfer plate 114 to rotate, thereby calling the charging plug 108.

[0061] This invention is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort are within the protection scope of this invention.

Claims

1. A charging device for new energy vehicles, comprising a base plate (101), on which a square shell (102) and a sector-shaped shell (111) are fixedly mounted, and a cover plate (103) is fixedly mounted on the square shell (102), the sector-shaped shell (111) and the cover plate (103) are fixedly connected, characterized in that: A transfer assembly is provided on the base plate (101). The transfer assembly includes a transfer support base (117). A first transfer strip (114) and a second transfer strip (115) are rotatably mounted on the transfer support base (117). An L-shaped slide (119) is slidably mounted on both the first transfer strip (114) and the second transfer strip (115). A take-up reel (125) is rotatably mounted on the L-shaped slide (119). The L-shaped slide (119) and the take-up reel (125) are connected by a transfer plate. A torsion spring is provided between the winding reel (125), a charging cable (107) is provided on the winding reel (125), a conductive cylinder (147) is provided at one end of the charging cable (107), the conductive cylinder (147) is fixedly installed on the winding reel (125), a charging plug (108) is provided at the other end of the charging cable (107), an L-shaped baffle (110) is fixedly provided on the L-shaped slide (119), and the charging plug (108) and the L-shaped baffle (110) are movably connected; The base plate (101) is provided with protective components and auxiliary components. The protective components include the charging pile body (106) and a splined shaft (139) slidably mounted on the winding reel (125). A conductive block (126) is fixedly provided at the end of the splined shaft (139). The conductive block (126) on the splined shaft (139) and the conductive cylinder (147) slide in cooperation. Insulating cylinders (124) are fixedly provided on both sides of the charging pile body (106). The conductive block (126) is fixedly installed inside the insulating cylinder (124). The conductive block (126) inside the insulating cylinder (124) is in contact with the charging pile body. (106) Connecting, the auxiliary components include a symmetrically fixed upper limit cylinder (127) installed on the base plate (101), a limit screw (128) slidably installed inside the limit cylinder (127), and a transmission pulley (129) symmetrically rotated on the base plate (101). The limit screw (128) and the transmission pulley (129) form a helical pair. Limit sleeves (120) are fixedly installed on both the first transfer plate (114) and the second transfer plate (115). The limit sleeves (120) and the limit screw (128) are used to limit the rotation of the first transfer plate (114) and the second transfer plate (115).

2. The charging device for new energy vehicles according to claim 1, characterized in that: The transfer assembly also includes a U-shaped support frame (109) fixedly installed on the base plate (101). The transfer support seat (117) is fixedly installed on the fan-shaped housing (111). Two drive pulleys (134) are rotatably installed on the U-shaped support frame (109). Long arm rotating plate one (135) and long arm rotating plate two (136) are rotatably installed on the two drive pulleys (134), respectively. There is friction between long arm rotating plate one (135) and the corresponding drive pulley (134), and there is friction between long arm rotating plate two (136) and the corresponding drive pulley (134).

3. A charging device for new energy vehicles according to claim 2, characterized in that: A drive gear (146) is rotatably mounted on the transfer support base (117). Multiple teeth are fixedly provided at the end of the first transfer plate (114). The drive gear (146) and the first transfer plate (114) mesh to form a gear pair. The first long arm rotating plate (135) and the drive gear (146) rotate in cooperation. A torsion spring is provided between the first long arm rotating plate (135) and the drive gear (146). The second long arm rotating plate (136) and the second transfer plate (115) rotate in cooperation. A torsion spring is provided between the second long arm rotating plate (136) and the second transfer plate (115). A trapezoidal limiting plate (123) is fixedly provided on the transfer support base (117). Limiting short columns (118) are fixedly provided on both sides of the transfer support base (117). The limiting short columns (118) and the trapezoidal limiting plate (123) are used to limit the rotation position of the first transfer plate (114) and the second transfer plate (115).

4. A charging device for new energy vehicles according to claim 3, characterized in that: Two sector plates are fixedly installed at both ends of the L-shaped baffle (110). Sector side plates (148) are symmetrically fixedly installed on the square shell (102). The outer side of the sector plate on the L-shaped baffle (110) that is farthest from the sector shell (111) coincides with the inner side of the sector side plate (148). The outer side of the sector plate on the L-shaped baffle (110) that is closest to the sector shell (111) coincides with the inner side of the sector shell (111). The inner diameter of the sector side plate (148) is the same as the inner diameter of the sector shell (111).

5. A charging device for new energy vehicles according to claim 4, characterized in that: The protective assembly also includes a U-shaped sliding plate one (138) and a U-shaped sliding plate two (140). The U-shaped sliding plate one (138) is slidably mounted on the side of the L-shaped slide (119). The U-shaped sliding plate one (138) and the spline shaft (139) are rotatably connected. A spring is provided between the U-shaped sliding plate one (138) and the L-shaped slide (119). The U-shaped sliding plate two (140) is slidably mounted on the lower end face of the L-shaped slide (119). The spline shaft (139) and the U-shaped sliding plate two (140) are fixedly connected. The spline shaft (139) and the take-up reel (125) form a spline sliding fit. A spring is provided between the transfer strip two (115) and the corresponding L-shaped slide (119). A spring is provided between the transfer strip one (114) and the corresponding L-shaped slide (119).

6. A charging device for new energy vehicles according to claim 5, characterized in that: The end of the long arm rotating plate one (135) is fixedly installed with a transmission ring plate two (143), and the end of the long arm rotating plate two (136) is fixedly installed with a transmission ring plate one (142). The inner side of the transmission ring plate two (143) is provided with multiple teeth, and the outer side of the transmission ring plate one (142) is provided with multiple teeth. The two sides of the transfer support seat (117) are rotatably installed with strip push plates (144). The U-shaped sliding plate two (140) is fixedly provided with auxiliary push rods (141), and the strip push plates (144) are fixedly installed with driven gears (145). When the transmission ring plate one (142) and the transmission ring plate two (143) are engaged with the corresponding driven gears (145), they form a gear pair.

7. A charging device for new energy vehicles according to claim 6, characterized in that: The auxiliary components also include two gearboxes (113), which are symmetrically fixedly installed on the inner side of the square housing (102). An auxiliary pulley (121) is fixedly installed on the input shaft of the gearbox (113), and a take-up strip (116) is rotatably installed on the output shaft of the gearbox (113). There is friction between the output shaft of the gearbox (113) and the take-up strip (116). A fan-shaped strip (112) is also fixedly installed on the inner side of the square housing (102). A drive shaft (149) is rotatably installed on each of the L-shaped slides (119). A transmission group (137) is provided between the drive shaft (149) and the take-up reel (125). A groove that cooperates with the fan-shaped strip (112) is provided on the drive shaft (149). The thickness of the fan-shaped strip (112) is the same as the thickness of the take-up strip (116).

8. A charging device for new energy vehicles according to claim 7, characterized in that: The limiting cylinder (127) and the limiting screw (128) form a spline sliding fit. An auxiliary pulley two (131) is fixedly installed on the transmission pulley (129). An auxiliary belt (122) is provided between the auxiliary pulley two (131) and the auxiliary pulley one (121). A transmission belt (130) is provided between the transmission pulley (129) and the corresponding drive pulley (134).

9. A charging device for new energy vehicles according to claim 8, characterized in that: A radiator (104) is symmetrically fixed on the base plate (101), a maintenance auxiliary plate (105) is movably installed on the square shell (102), and an arc-shaped notch is symmetrically provided on the fan-shaped shell (111). The charging pile body (106) is fixedly installed inside the fan-shaped shell (111).

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