A charging stand

Abstract

The present invention relates to the technical field of charging sockets, and specifically discloses a charging seat, including a fixed block, a socket and a dust cover, wherein the socket has a plug-in cavity, and also includes a main locking block assembled on the socket along the radial direction of the plug-in cavity, an unlocking button assembled on the socket along the depth direction of the plug-in cavity, a connecting rod connected between the main locking block and the unlocking button, a labor-saving lever installed on the socket, a first spring connected between the force-applying end of the labor-saving lever and the unlocking button, a boosting block arranged at the resistance end of the labor-saving lever and assembled on the socket along the depth direction of the plug-in cavity, and a pushing plate assembled in the plug-in cavity along the depth direction of the plug-in cavity; the diameter of the plug-in cavity is larger than the diameter of the charging gun head, the pushing plate has a pushing inclined surface for pushing the main locking block to move out of the plug-in cavity, and the main locking block has a main locking surface. The charging seat realizes smooth plugging and unplugging action, and improves the reliability of charging connection and user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of charging sockets, and in particular to a charging seat. Background Art

[0002] As the global energy crisis and environmental problems become increasingly serious, new energy vehicles, as an important alternative to traditional fuel vehicles, have been vigorously promoted by governments of various countries. The popularization of new energy vehicles is inseparable from the improvement of charging facilities. As an important part of charging facilities, the performance of the charging seat directly affects the user experience and safety of electric vehicles. At present, the new energy vehicle charging seat on the market is mainly composed of charging module, control module, heat dissipation module, etc. Among them, the charging module is responsible for converting the power of the power grid into the power required by the electric vehicle; the control module is responsible for real-time monitoring and regulation of the charging process; and the heat dissipation module is responsible for dissipating the heat generated during the charging process.

[0003] A Chinese patent document with authorization announcement number CN118508150B discloses an AC / DC integrated charging socket, which can tilt the socket during charging by rotating a fixed block, thereby helping to prevent rainwater from entering the socket, improving the safety of the charging process, and extending the service life of the device. At the same time, the rotation of the fixed block can improve the compatibility of the socket, improve the flexibility of the charging process, optimize space utilization, make the layout more flexible, and facilitate users to plug and unplug the charging gun head, thereby improving convenience. A sealing ring is provided to prevent rainwater from entering the interior of the car along the gap between the fixed block and the car while realizing the rotation of the fixed block, thereby improving the safety of the device. Furthermore, the sealing ring is set in a stepped shape to reduce the gap between the sealing ring and the fixed block / car, reduce the accumulation of rainwater in the sealing ring, extend the service life of the device, and improve the safety of the device.

[0004] However, during use, the above-mentioned AC / DC integrated charging socket in the prior art may produce a large plugging and unplugging resistance to the charging gun head due to excessive contact pressure of the inner wall of the charging socket on the charging gun head, resulting in difficulty in plugging and unplugging. In addition, the inner wall of the charging socket is easily worn or deformed due to long-term use, resulting in a loose fit with the charging gun head, affecting charging efficiency and safety. Summary of the invention

[0005] The present invention provides a charging seat, aiming to solve the problem that the inner wall of the charging socket existing in the related art of the AC / DC integrated charging socket is not only difficult to plug and unplug due to excessive contact pressure, but also easy to wear or deform due to long-term use, affecting the charging efficiency.

[0006] The present invention provides a charging base adopting the following technical solution:

[0007] A charging seat comprises a socket with a plug-in cavity, and also comprises a main locking block assembled on the socket and moving along the radial direction of the plug-in cavity, an unlocking button assembled on the socket and moving along the depth direction of the plug-in cavity, a connecting rod connected between the main locking block and the unlocking button, a labor-saving lever installed on the socket, a first spring connected between the force-applying end of the labor-saving lever and the unlocking button, a boosting block arranged at the resistance end of the labor-saving lever and moving along the depth direction of the plug-in cavity and assembled on the socket, and a pushing plate assembled in the plug-in cavity and moving along the depth direction of the plug-in cavity; the diameter of the plug-in cavity is larger than the diameter of the charging gun head, and the end of the pushing plate away from the charging gun head has a pushing inclined surface for pushing the main locking block to move out of the plug-in cavity, the first spring is used to apply elastic force to the unlocking button, so that the unlocking button moves in a direction close to the charging gun head, so as to drive the main locking block to move into the plug-in cavity through the connecting rod, and the main locking block has a main locking surface for squeezing the charging gun head; when the unlocking button is pressed, the unlocking button drives the main locking block to move out of the plug-in cavity through the connecting rod, and at the same time, the boosting block is moved in a direction close to the charging gun head through the labor-saving lever.

[0008] By adopting the above technical scheme, the diameter of the plug-in cavity is set to be larger than the diameter of the charging gun head, so that the charging gun head does not contact the side wall of the plug-in cavity when the charging gun head is plugged in and out, and the contact pressure of the inner wall of the charging socket on the charging gun head is reduced as much as possible, thereby reducing the plug-in and pull-out resistance generated by the inner wall of the charging socket to the charging gun head. At the same time, it can avoid the wear or deformation of the inner wall of the charging socket due to long-term use, thereby extending the service life of the charging socket; and a main locking block for squeezing the outer wall of the charging gun head to lock the charging gun head is provided on the socket. When the charging gun head is inserted into the plug-in cavity, the end face of the charging gun head pushes the pushing plate, and the pushing inclined surface of the pushing plate can first push the main locking block out of the plug-in cavity, so that when the charging gun head is inserted, the charging gun head does not contact the main locking surface of the main locking block, thereby avoiding the main locking surface of the main locking plate from generating a large plug-in and pull-out resistance to the charging gun head, and minimizing the main lock Friction and wear between the fixed surface and the outer wall of the charging gun head; until the charging gun head is plugged in place, the pushing plate is disengaged from the main locking block, and the main locking block can move into the plug-in cavity driven by the elastic force of the first spring to lock the charging gun head; when pulling out the charging gun head, press the unlocking button, and the unlocking button drives the main locking block to move out of the plug-in cavity through the connecting rod, thereby releasing the lock on the charging gun head and allowing the charging gun head to be pulled out. At the same time, the unlocking button uses the force-saving lever to move the booster block toward the charging gun head, and the booster block pushes the pushing plate to move, and the pushing plate can push the charging gun head to help the charging gun head to be pulled out; in this way, the plugging and unplugging resistance of the charging gun head is reduced as much as possible, smooth plugging and unplugging action is achieved, the service life of the charging socket is extended, while ensuring the stable locking of the charging gun head, improving the reliability of the charging connection and user experience.

[0009] Furthermore, the charging seat also includes a secondary locking block assembled on the socket along the radial movement of the plug-in cavity, and a second spring is arranged between the secondary locking block and the socket to apply elastic force to the secondary locking block so that the secondary locking block moves into the plug-in cavity, and the secondary locking block has a secondary locking surface for squeezing the outer peripheral wall of the charging gun head.

[0010] Furthermore, the number of the auxiliary locking blocks is two, and the two auxiliary locking blocks and the main locking block are arranged in a triangular layout.

[0011] By adopting the above technical solution, the three locking points can provide a more uniform locking force, ensuring that the charging gun head is more stable and firm during the charging process, preventing it from falling off due to external force or accidents. It can also disperse the force, reduce the risk of wear or damage of a single locking point due to long-term use, and improve the durability and service life of the charging equipment.

[0012] Furthermore, a protrusion for pushing the auxiliary locking block to move out of the plug-in cavity is fixed to the end of the push plate away from the charging gun head, and the end of the auxiliary locking block away from the charging gun head has a first guide slope inclined inward from the socket toward the charging gun head.

[0013] Furthermore, the end of the main locking block away from the charging gun head has a second guide slope inclined inward from the socket toward the charging gun head. When the main locking surface of the main locking block squeezes the outer peripheral wall of the charging gun head, the end of the main locking block away from the charging gun head protrudes from the side wall of the plug-in cavity to limit the movement of the push plate.

[0014] Furthermore, the charging seat also includes a third spring connected between the socket and the push plate, and the third spring is used to apply an elastic force to the push plate to move the push plate toward the charging gun head.

[0015] By adopting the above technical solution, after opening the dust cover, the push plate automatically protrudes from the end face of the socket under the drive of the elastic force of the third spring, which can block dust, moisture and other small particles of foreign matter from entering the socket, protecting the internal circuit from damage, and preventing children or careless people from touching the exposed terminals, reducing the risk of electric shock.

[0016] Furthermore, the charging seat also includes a cooling mechanism arranged on the socket, the push plate has a accommodating cavity for accommodating a cooling medium, the push plate is provided with an inlet medium pipe and an outlet medium pipe connected between the cooling mechanism and the accommodating cavity, the push plate has a heat exchange surface facing the charging gun head, and the cooling medium is a coolant or cooling air.

[0017] By adopting the above technical solution, the contact area between the charging gun head and the cooling medium can be increased, so that the cooling medium can take away the heat during the charging process more quickly, effectively reducing the heating problem during the charging process, and improving the charging efficiency and stability of the equipment.

[0018] Furthermore, the outer peripheral wall of the push plate contacts the side wall of the plug-in cavity.

[0019] By adopting the above technical solution, when the push plate moves towards the charging gun head, the outer wall of the push plate can scrape out and push out the dust, dirt and other particles in the plug-in cavity, preventing these substances from accumulating and affecting the charging efficiency and connection stability. At the same time, it can reduce the wear of foreign matter on the contact surface between the plug-in cavity and the charging gun head, reduce the friction resistance when plugging and unplugging the charging gun head next time, and extend the service life of the charging device.

[0020] Furthermore, the socket is provided with a first limit groove and a second limit groove, both extending in the depth direction of the plug-in cavity; a force-applying slider and the unlocking button are movably assembled in the first limit groove; the force-applying end and the resistance end of the effort-saving lever are both provided with a first slide groove and a second slide groove extending in the length direction of the effort-saving lever; a first axis movably assembled in the first slide groove is fixed on the force-applying slider; the boosting block is movably assembled in the second limit groove; a second axis movably assembled in the second slide groove is fixed on the boosting block.

[0021] Furthermore, the socket is provided with a third limiting groove extending radially along the plug-in cavity, the main locking block is movably assembled in the third limiting groove, one end of the connecting rod is rotatably mounted on the unlocking button, and the other end of the connecting rod is rotatably mounted on the main locking block, and the main locking block and the unlocking button are respectively provided with grooves for accommodating the connecting rod.

[0022] The beneficial effects of a charging socket provided by the present invention are as follows: the diameter of the plug-in cavity is set to be larger than the diameter of the charging gun head, so that the charging gun head does not contact the side wall of the plug-in cavity when the charging gun head is plugged in and out, thereby reducing the contact pressure of the inner circumferential wall of the charging socket on the charging gun head as much as possible, thereby reducing the plug-in and pull-out resistance generated by the inner circumferential wall of the charging socket to the charging gun head, and at the same time, it can avoid the wear or deformation of the inner circumferential wall of the charging socket due to long-term use, thereby extending the service life of the charging socket; and a main locking block for squeezing the outer circumferential wall of the charging gun head to lock the charging gun head is provided on the socket, and when the charging gun head is inserted into the plug-in cavity, the end face of the charging gun head pushes the pushing plate, and the pushing inclined surface of the pushing plate can first push the main locking block out of the plug-in cavity, so that when the charging gun head is inserted, the charging gun head does not contact the main locking surface of the main locking block, thereby avoiding the main locking surface of the main locking plate from generating a large plug-in and pull-out resistance to the charging gun head, and minimizing the plug-in and pull-out resistance. It can reduce the friction and wear between the main locking surface and the outer wall of the charging gun head; until the charging gun head is plugged in place, the pushing plate is disengaged from the main locking block, and the main locking block can move into the plug-in cavity driven by the elastic force of the first spring to lock the charging gun head; when pulling out the charging gun head, press the unlocking button, and the unlocking button drives the main locking block to move out of the plug-in cavity through the connecting rod, thereby releasing the lock on the charging gun head and allowing the charging gun head to be pulled out. At the same time, the unlocking button uses the force-saving lever to move the booster block in the direction close to the charging gun head, and the booster block pushes the pushing plate to move, and the pushing plate can push the charging gun head to help pull the charging gun head out; in this way, the plugging and unplugging resistance of the charging gun head is reduced as much as possible, smooth plugging and unplugging action is achieved, and the service life of the charging socket is extended. At the same time, it ensures that the charging gun head is firmly locked, and the reliability of the charging connection and user experience are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the charging base of the present invention.

[0024] Figure 2 It is a schematic structural diagram of the socket of the charging stand of the present invention.

[0025] Figure 3 It is a structural schematic diagram of the main locking block of the charging base of the present invention.

[0026] Figure 4 It is a structural schematic diagram of the auxiliary locking block of the charging stand of the present invention.

[0027] Reference numerals:

[0028] 10. Fixing block; 110. Dust cover; 20. Socket; 210. Plug cavity; 220. Terminal; 230. First limiting groove; 240. Second limiting groove; 250. Third limiting groove; 30. Charging gun head; 310. Slot; 40. Main locking block; 410. Main locking surface; 420. Second guiding slope; 430. Groove; 50. Unlocking button; 510. First spring; 60. Connecting rod; 70. Effort-saving lever; 710. Boosting block; 711, second axis; 720, first slide groove; 730, second slide groove; 740, force-applying slider; 741, first axis; 80, pushing plate; 810, pushing inclined surface; 820, protrusion; 830, third spring; 840, accommodating chamber; 850, medium inlet pipe; 860, medium outlet pipe; 870, heat exchange surface; 90, auxiliary locking block; 910, second spring; 920, auxiliary locking surface; 930, first guide inclined surface. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0030] like Figures 1 to 4 As shown, an embodiment of the charging stand of the present invention includes a fixing block 10, a socket 20, a dust cover 110, a main locking block 40, an unlocking button 50, a first spring 510, a connecting rod 60, a labor-saving lever 70, a booster block 710, a force-applying slider 740, a push plate 80, a third spring 830, a secondary locking block 90, a second spring 910, and a cooling mechanism.

[0031] like Figure 1 As shown, the fixing block 10 is in the shape of a rectangular parallelepiped as a whole, and the two sockets 20 are in the shape of a cylinder as a whole. The two sockets 20 are fixed on the fixing block 10. The two sockets 20 are respectively an AC charging socket and a DC charging socket, which are used to plug the charging gun head 30. The dust cover 110 corresponds to each socket 20 and is hinged on the fixing block 10 to prevent dust, dirt and other particles from entering the socket 20.

[0032] like Figures 1 to 3As shown, each socket 20 has a plug-in cavity 210 for plugging in a charging gun head 30. The diameter of the plug-in cavity 210 is larger than the diameter of the charging gun head 30, so that when the charging gun head 30 is plugged in and out, the charging gun head 30 does not contact the side wall of the plug-in cavity 210, and the contact pressure of the inner wall of the charging socket 20 on the charging gun head 30 is reduced as much as possible, thereby reducing the plug-in and pull-out resistance generated by the inner wall of the charging socket 20 on the charging gun head 30, and at the same time, it can prevent the inner wall of the charging socket 20 from being worn or deformed due to long-term use, thereby extending the service life of the charging socket 20. In other embodiments, the diameter of the plug-in cavity 210 can also be equal to the diameter of the charging gun head 30, but the side wall of the plug-in cavity 210 needs to be polished to reduce the friction coefficient, thereby reducing the resistance during plug-in and pull-out. A plurality of terminals 220 corresponding to the slots 310 of the charging gun head 30 are arranged in the plug-in cavity 210. Each socket 20 is provided with a first limiting groove 230 and a second limiting groove 240 extending along the depth direction of the plug-in cavity 210 . Each socket 20 is also provided with a third limiting groove 250 extending along the radial direction of the plug-in cavity 210 .

[0033] The main locking block 40 is movably assembled in the third limiting groove 250 and can move radially along the plug cavity 210 in the third limiting groove 250. The main locking block 40 has a main locking surface 410 for squeezing the outer peripheral wall of the charging gun head 30. The main locking surface 410 has an anti-slip texture or coating to increase the friction with the outer peripheral wall of the charging gun head 30 to prevent sliding during charging and ensure a stable locking effect. The end of the main locking block 40 away from the charging gun head 30 has a second guiding inclined surface 420 inclined inward from the socket 20 to the charging gun head 30.

[0034] The unlocking button 50 is movably assembled in the first limiting groove 230 and can move in the first limiting groove 230 along the depth direction of the inserting cavity 210. The connecting rod 60 is connected between the unlocking button 50 and the main locking block 40. One end of the connecting rod 60 is rotatably mounted on the unlocking button 50, and the other end of the connecting rod 60 is rotatably mounted on the main locking block 40. The main locking block 40 and the unlocking button 50 are respectively provided with grooves 430 for accommodating the connecting rod 60 to allow the connecting rod 60 to rotate.

[0035] The force-applying slider 740 is movably assembled in the first limiting groove 230, and can move in the first limiting groove 230 along the depth direction of the plug-in cavity 210. The first spring 510 is connected between the unlocking button 50 and the force-applying slider 740. The first spring 510 is used to apply elastic force to the unlocking button 50, so that the unlocking button 50 moves in the direction close to the charging gun head 30, so as to drive the main locking block 40 to move into the plug-in cavity 210 through the connecting rod 60, so that the main locking surface 410 of the main locking block 40 squeezes the outer peripheral wall of the charging gun head 30 to lock the charging gun head 30. When the unlocking button 50 is pressed, the unlocking button 50 can drive the main locking block 40 to move out of the plug-in cavity 210 through the connecting rod 60, and release the main locking block 40 from locking the charging gun head 30.

[0036] The boosting block 710 is movably assembled in the second limiting groove 240 , and can move in the second limiting groove 240 along the depth direction of the plug-in cavity 210 .

[0037] The push plate 80 moves along the depth direction of the plug cavity 210 and is assembled in the plug cavity 210. The outer peripheral wall of the push plate 80 contacts the side wall of the plug cavity 210, so that when the push plate 80 moves in the direction close to the charging gun head 30, the outer peripheral wall of the push plate 80 can scrape and push out the dust, dirt and other particles in the plug cavity 210, preventing these substances from accumulating and affecting the charging efficiency and the stability of the connection. At the same time, it can reduce the wear of foreign matter on the contact surface between the plug cavity 210 and the charging gun head 30, reduce the friction resistance when the charging gun head 30 is plugged in and out next time, and extend the service life of the charging device. The third spring 830 is connected between the socket 20 and the push plate 80. The third spring 830 is used to apply elastic force to the push plate 80 to move the push plate 80 in the direction close to the charging gun head 30. After the dust cover 110 is opened, the push plate 80 automatically protrudes from the end surface of the socket 20 under the drive of the elastic force of the third spring 830, which can prevent dust, moisture and other small particles from entering the socket 20, protect the internal circuit from damage, and prevent children or careless people from touching the exposed terminals 220, reducing the risk of electric shock. The end of the push plate 80 away from the charging gun head 30 has a push inclined surface 810 for pushing the main locking block 40 to move out of the plug cavity 210. When the charging gun head 30 is inserted into the plug-in cavity 210, the end face of the charging gun head 30 pushes the pushing plate 80, and the pushing inclined surface 810 of the pushing plate 80 can first push the main locking block 40 out of the plug-in cavity 210, so that when the charging gun head 30 is inserted, the charging gun head 30 does not contact the main locking surface 410 of the main locking block 40, thereby avoiding the main locking surface 410 of the main locking plate from generating a large plugging and unplugging resistance to the charging gun head 30, and minimizing the friction and wear between the main locking surface 410 and the outer peripheral wall of the charging gun head 30.

[0038] When the main locking surface 410 of the main locking block 40 squeezes the outer peripheral wall of the charging gun head 30, the end of the main locking block 40 away from the charging gun head 30 protrudes from the side wall of the plug-in cavity 210 to limit the push plate 80 from moving in the direction close to the charging gun head 30, thereby locking the position of the push plate 80.

[0039] The fulcrum of the effort-saving lever 70 is rotatably mounted on the socket 20, and the force-applying end and the resistance end of the effort-saving lever 70 are both provided with a first slide groove 720 and a second slide groove 730 extending along the length direction of the effort-saving lever 70. A first shaft 741 movably assembled in the first slide groove 720 is fixed on the force-applying slider 740, and a second shaft 711 movably assembled in the second slide groove 730 is fixed on the boosting block 710. When the unlocking button 50 is pressed, the unlocking button 50 pushes the force-applying slider 740 through the first spring 510, and the pressing force is applied to the power arm of the effort-saving lever 70. Due to the lever action of the effort-saving lever 70, a greater force can be generated on the resistance arm, so that the boosting block 710 moves toward the direction of the charging gun head 30, and the boosting block 710 can push the push plate 80, and then the push plate 80 pushes the charging gun head 30 to help the charging gun head 30 to be pulled out, which can reduce the force of the user during operation, so that the user can pull out the charging gun head 30 more easily.

[0040] like Figure 4 As shown, there are two auxiliary locking blocks 90, and the two auxiliary locking blocks 90 and the main locking block 40 are arranged in a triangular layout. The three locking points can provide a more uniform locking force, ensuring that the charging gun head 30 is more stable and firm during the charging process, preventing it from falling off due to external force or unexpected circumstances, and can also disperse the force, reduce the risk of wear or damage of a single locking point due to long-term use, and improve the durability and service life of the charging device. Each auxiliary locking block 90 is assembled on the socket 20 along the radial movement of the plug-in cavity 210. A second spring 910 is provided between the auxiliary locking block 90 and the socket 20 to apply elastic force to the auxiliary locking block 90 so that the auxiliary locking block 90 moves into the plug-in cavity 210. The auxiliary locking block 90 has an auxiliary locking surface 920 for squeezing the outer peripheral wall of the charging gun head 30.

[0041] The end of the push plate 80 that faces away from the charging gun head 30 is fixed with a protrusion 820 for pushing the secondary locking block 90 to move out of the plug-in cavity 210. When the charging gun head 30 is inserted into the plug-in cavity 210, the protrusion 820 of the push plate 80 keeps pushing the secondary locking block 90 to move out of the plug-in cavity 210, so that when the charging gun head 30 is inserted, the charging gun head 30 does not contact the secondary locking surface 920 of the secondary locking block 90, avoiding the secondary locking surface 920 of the secondary locking block 90 from generating a large plug-in and pull-out resistance to the charging gun head 30, and minimizing the friction and wear between the secondary locking surface 920 and the outer peripheral wall of the charging gun head 30. The end of the secondary locking block 90 that faces away from the charging gun head 30 has a first guide slope 930 that tilts inward from the socket 20 to the charging gun head 30. When the charging gun head 30 is pulled out, the protrusion 820 of the push plate 80 can move along the first guide slope 930 and push the secondary locking block 90 to move out of the plug-in cavity 210, thereby releasing the lock of the secondary locking block 90 on the charging gun head 30, and cooperating with the unlocking of the main locking block 40 to allow the charging gun head 30 to be pulled out.

[0042] like Figure 2 As shown, the cooling mechanism is arranged on the socket 20, and the pushing plate 80 has a accommodating cavity 840 for accommodating a cooling medium. The pushing plate 80 is provided with a medium inlet pipe 850 and a medium outlet pipe 860 connected between the cooling mechanism and the accommodating cavity 840. The cooling medium is a coolant or cooling air. The medium inlet pipe 850 and the medium outlet pipe 860 are telescopic tubes. The pushing plate 80 has a heat exchange surface 870 facing the charging gun head 30. In this way, the contact area between the charging gun head 30 and the cooling medium can be increased, so that the cooling medium can take away the heat in the charging process more quickly, effectively reduce the heat problem in the charging process, and improve the charging efficiency and the stability of the equipment.

[0043] The working process of the embodiment of the charging stand of the present invention includes the following steps:

[0044] The first step is insertion. Align the slot 310 of the charging gun head 30 with the terminal 220 of the plug-in cavity 210, and push the charging gun head 30 into the plug-in cavity 210. The end surface of the charging gun head 30 contacts the push plate 80, and then pushes the push plate 80 to move. The push inclined surface 810 of the push plate 80 pushes the main locking block 40 out of the plug-in cavity 210, so that the charging gun head 30 does not contact the main locking surface 410 of the main locking block 40 when the charging gun head 30 is inserted; at the same time, the protrusion 820 of the push plate 80 pushes the secondary locking block 90 to move out of the plug-in cavity 210, so that the charging gun head 30 does not contact the secondary locking surface 920 of the secondary locking block 90 when the charging gun head 30 is inserted.

[0045] The second step is locking. The push plate 80 passes over the second guide slope 420. The main locking block 40 moves into the plug-in cavity 210 driven by the elastic force of the first spring 510. The second guide slope 420 extends between the push plate 80 and the charging gun head 30. The second guide slope 420 limits the charging gun head 30 from continuing to move and pushes the push plate 80 to continue to move; until the main locking surface 410 of the main locking block 40 squeezes the outer peripheral wall of the charging gun head 30 to lock the charging gun head 30. The end of the main locking block 40 that is away from the charging gun head 30 protrudes from the side wall of the plug-in cavity 210, limiting the push plate 80 from moving in the direction close to the charging gun head 30, and locking the position of the push plate 80. At the same time, the protrusion 820 of the push plate 80 moves along the first guide slope 930, so that the protrusion 820 is disengaged from the auxiliary locking block 90, and the auxiliary locking block 90 moves into the plug-in cavity 210 driven by the elastic force of the second spring 910, and the auxiliary locking surface 920 of the auxiliary locking block 90 squeezes the outer peripheral wall of the charging gun head 30, and cooperates with the main locking block 40 to lock the charging gun head 30.

[0046] The third step is unlocking. Press the unlock button 50. The unlock button 50 drives the main locking block 40 to move out of the plug-in cavity 210 through the connecting rod 60, and releases the main locking block 40 from locking the charging gun head 30 and the push plate 80. At the same time, the unlock button 50 pushes the force-applying slider 740 through the first spring 510, and the pressing force is applied to the power arm of the labor-saving lever 70. Due to the lever action of the labor-saving lever 70, the booster block 710 moves toward the charging gun head 30, and the booster block 710 pushes the push plate 80. The protrusion 820 of the push plate 80 moves along the first guide slope 930 and pushes the secondary locking block 90 to move out of the plug-in cavity 210, releasing the lock of the secondary locking block 90 on the charging gun head 30, and cooperating with the unlocking of the main locking block 40, allowing the charging gun head 30 to be pulled out, and the push plate 80 pushes the charging gun head 30 after crossing the second guide slope 420, helping the charging gun head 30 to be pulled out.

[0047] The fourth step is to pull out the charging gun head 30 from the plug-in cavity 210. Driven by the elastic force of the third spring 830, the push plate 80 moves toward the charging gun head 30 to help pull out the charging gun head 30.

[0048] In this way, the plugging and unplugging resistance of the charging gun head 30 is reduced as much as possible, a smooth plugging and unplugging action is achieved, the service life of the charging socket 20 is extended, and at the same time, a firm locking of the charging gun head 30 is ensured, thereby improving the reliability of the charging connection and the user experience.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A charging stand, comprising a socket (20) having a plug cavity (210), characterized in that: The device also comprises a main locking block (40) mounted on the socket (20) and movable along the radial direction of the plug-in cavity (210), an unlocking button (50) mounted on the socket (20) and movable along the depth direction of the plug-in cavity (210), a connecting rod (60) connected between the main locking block (40) and the unlocking button (50), a labor-saving lever (70) mounted on the socket (20), a first spring (510) connected between the force-applying end of the labor-saving lever (70) and the unlocking button (50), a boosting block (710) provided at the resistance end of the labor-saving lever (70) and movable along the depth direction of the plug-in cavity (210) and movable along the depth direction of the plug-in cavity (210) and a pushing plate (80) mounted in the plug-in cavity (210); the diameter of the plug-in cavity (210) is larger than the diameter of the charging gun head (30); The push plate (80) has a push inclined surface (810) for pushing the main locking block (40) to move out of the plug-in cavity (210), and the first spring (510) is used to apply elastic force to the unlocking button (50) so that the unlocking button (50) moves in a direction close to the charging gun head (30), thereby driving the main locking block (40) to move into the plug-in cavity (210) through the connecting rod (60). The main locking block (40) has a main locking surface (410) for pressing the charging gun head (30); when the unlocking button (50) is pressed, the unlocking button (50) drives the main locking block (40) to move out of the plug-in cavity (210) through the connecting rod (60), and at the same time, the boosting block (710) moves in a direction close to the charging gun head (30) through the force-saving lever (70).

2. A charging stand according to claim 1, characterized in that: The charging seat further comprises a secondary locking block (90) which is assembled on the socket (20) and is movable radially along the plug-in cavity (210); a second spring (910) is provided between the secondary locking block (90) and the socket (20) to apply elastic force to the secondary locking block (90) so that the secondary locking block (90) moves into the plug-in cavity (210); and the secondary locking block (90) has a secondary locking surface (920) for pressing the outer peripheral wall of the charging gun head (30).

3. A charging stand according to claim 2, characterized in that: The number of the auxiliary locking blocks (90) is two, and the two auxiliary locking blocks (90) and the main locking block (40) are arranged in a triangular layout.

4. A charging stand according to claim 2, characterized in that: A protrusion (820) for pushing the auxiliary locking block (90) to move out of the plug-in cavity (210) is fixed to one end of the push plate (80) facing away from the charging gun head (30), and a first guiding inclined surface (930) is inclined inwardly from the socket (20) to the charging gun head (30) at one end of the auxiliary locking block (90).

5. The charging stand according to claim 1, characterized in that: The end of the main locking block (40) facing away from the charging gun head (30) has a second guiding inclined surface (420) inclined inwardly from the socket (20) to the charging gun head (30); when the main locking surface (410) of the main locking block (40) presses the outer peripheral wall of the charging gun head (30), the end of the main locking block (40) facing away from the charging gun head (30) protrudes from the side wall of the plug cavity (210) to limit the movement of the push plate (80).

6. The charging stand according to claim 1, characterized in that: The charging seat also includes a third spring (830) connected between the socket (20) and the push plate (80), and the third spring (830) is used to apply an elastic force to the push plate (80) so that the push plate (80) moves in a direction close to the charging gun head (30).

7. The charging stand according to claim 1, characterized in that: The charging seat further comprises a cooling mechanism arranged on the socket (20); the pushing plate (80) has a receiving cavity (840) for receiving a cooling medium; the pushing plate (80) is provided with a medium inlet pipe (850) and a medium outlet pipe (860) connected between the cooling mechanism and the receiving cavity (840); the pushing plate (80) has a heat exchange surface (870) facing the charging gun head (30); and the cooling medium is a cooling liquid or cooling air.

8. The charging stand according to claim 1, characterized in that: The outer peripheral wall of the pushing plate (80) contacts the side wall of the plug-in cavity (210).

9. The charging stand according to claim 1, characterized in that: The socket (20) is provided with a first limiting groove (230) and a second limiting groove (240) both extending in the depth direction of the plug-in cavity (210); a force-applying slider (740) and the unlocking button (50) are movably mounted in the first limiting groove (230); a first slide groove (720) and a second slide groove (730) extending in the length direction of the force-saving lever (70) are provided at the force-applying end and the resistance end of the force-saving lever (70); a first shaft (741) movably mounted in the first slide groove (720) is fixed on the force-applying slider (740); the boosting block (710) is movably mounted in the second limiting groove (240); and a second shaft (711) movably mounted in the second slide groove (730) is fixed on the boosting block (710).

10. The charging stand according to claim 1, characterized in that: The socket (20) is provided with a third limiting groove (250) extending radially along the plug-in cavity (210); the main locking block (40) is movably assembled in the third limiting groove (250); one end of the connecting rod (60) is rotatably mounted on the unlocking button (50); the other end of the connecting rod (60) is rotatably mounted on the main locking block (40); and the main locking block (40) and the unlocking button (50) are respectively provided with a groove (430) for accommodating the connecting rod (60).

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