Charging gun electronic lock device and charging gun

Abstract

The present invention discloses an electronic lock device for a charging gun and a charging gun. The electronic lock device for a charging gun includes a shell, and a driving member and a push rod arranged in the shell; one end of the push rod is located in the shell and is connected to the driving member through a driving wheel; under the drive of the driving member, the other end of the push rod can be pushed out or retracted; a reset rocker arm is also provided on the outside of the shell; after the push rod is pushed out, the reset rocker arm can be toggled to drive the push rod to separate from the driving wheel and retract and reset. The electronic lock device for a charging gun adopts electromechanical control for locking and unlocking control, the locking state is stable, and the feedback monitoring is accurate; moreover, a manual reset system is provided, and when an electromechanical fault occurs after the locking rod is pushed out and locked, manual reset can be performed conveniently, quickly, easily and reliably. The charging gun of the present invention includes the electronic lock device for a charging gun.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile charging equipment, and in particular to an electronic lock device for a charging gun and a charging gun. Background Art

[0002] As new energy vehicles, electric vehicles are not only safe, low-pollution, and low-cost. Furthermore, with the continuous maturation of technology and growing awareness of energy conservation and environmental protection, electric vehicles are experiencing continuous growth and their popularity is rising. With the increasing popularity of electric vehicles, charging stations are like refueling stations, providing convenient and convenient energy refueling for electric vehicles anytime, anywhere. Charging stations are equipped with a charging gun, similar to a gas pump, that plugs directly into the charging port on the car.

[0003] The charging gun, a core charging device for electric vehicles, is equipped with an internal locking device to prevent it from detaching from the vehicle during charging. However, the internal structure of traditional charging gun locking devices uses electromagnetic locking and unlocking, which requires high voltage accuracy. Furthermore, the electromagnetic locking state is unstable, prone to excessive speeds and failure to trigger a feedback signal. Furthermore, while existing charging gun locking devices also utilize electronic locking principles, these electronic locks are difficult to manually reset in the event of a malfunction. Unlocking them is cumbersome and can easily damage the locking device. Summary of the Invention

[0004] The present invention addresses the shortcomings and deficiencies of existing technologies by providing an electronic locking device for charging guns. This device utilizes electromechanical control for locking and unlocking, resulting in stable locking and precise feedback monitoring. Furthermore, it incorporates a manual reset system, enabling quick, easy, and reliable manual reset in the event of an electromechanical failure after the locking rod is pushed out to lock the gun.

[0005] Another object of the present invention is to provide a charging gun, which includes the above-mentioned charging gun electronic lock device.

[0006] The purpose of the present invention is achieved through the following technical solutions.

[0007] A charging gun electronic lock device includes a housing, a driving member and a push rod disposed within the housing; one end of the push rod is located within the housing and is transmission-connected to the driving member via a driving wheel; the other end of the push rod can be pushed out or retracted under the drive of the driving member;

[0008] A reset rocker arm is further provided on the outer side of the shell; after the push rod is pushed out, the reset rocker arm can be toggled to drive the push rod to separate from the driving wheel transmission and retract and reset.

[0009] In a preferred embodiment, the driving wheel has an engaging portion and an extension rod portion extending and protruding along the axial direction of the engaging portion; the extension rod portion has teeth; the engaging portion is meshed and transmission-connected with the driving member;

[0010] A transmission notch is formed on one end of the push rod located in the housing; the end surface where the teeth are located is located in the transmission notch; and a tooth groove corresponding to the teeth is formed on the edge of the transmission notch, and the teeth are engaged with the tooth groove;

[0011] Driven by the driving member, the teeth cooperate with the tooth groove and drive the other end of the push rod to be pushed out or retracted; and after the push rod is pushed out, the reset rocker arm can be moved to drive the teeth to separate from the tooth groove and drive the push rod to retract and reset.

[0012] In a more preferred embodiment, the meshing portion is meshingly connected to the driving member through a gear set and a worm.

[0013] In a more preferred embodiment, a reset lever connected to the reset rocker arm is provided in the housing; the reset lever has a driving wheel contact arm and a push rod contact arm; the driving wheel contact arm is arranged opposite to the push rod contact arm;

[0014] After the push rod is pushed out, the reset rocker arm is toggled to drive the reset lever to rotate, so that the driving wheel contact arm contacts the driving wheel and lifts the driving wheel to separate the teeth from the tooth grooves; the reset lever is continued to be rotated, and the push rod contact arm contacts the push rod and drives the push rod to retract and reset.

[0015] In a further preferred embodiment, the push rod has a reset step corresponding to the push rod contact arm; the push rod contact arm interferes with the reset step in the rotation direction of driving the push rod to retract and reset.

[0016] In a further preferred embodiment, each of the driving wheel contact arm and the push rod contact arm includes two symmetrically arranged along the center of the driving wheel.

[0017] In a further preferred embodiment, a reset torsion spring is sleeved on the reset lever; two ends of the reset torsion spring are respectively connected to the housing and the reset lever.

[0018] In a further preferred embodiment, a return spring is provided on the top of the driving wheel; one end of the return spring is connected to the housing, and the other end is connected to the top of the driving wheel.

[0019] In a preferred embodiment, a detection switch is further provided in the housing for detecting whether the ejector rod is extended or retracted into position.

[0020] More preferably, a closing switch step and an opening switch groove are sequentially provided on one end of the push rod located in the housing along the pushing direction of the push rod;

[0021] When the other end of the push rod is pushed into place, the closing switch step corresponds to and abuts against the detection switch, so that the detection switch is closed; when the other end of the push rod is retracted into place, the opening switch groove corresponds to the detection switch and is in a mutually separated state with the detection switch, and the detection switch is opened.

[0022] More preferably, a first opening switch groove, a closing switch step and a second opening switch groove are sequentially provided on one end of the push rod located in the housing along the pushing direction of the push rod;

[0023] When the other end of the push rod retracts into position or is pushed out into position, the first open switch groove and the second open switch groove correspond to the detection switch respectively and are in a separated state from the detection switch, and the detection switch is open; and in the intermediate process of the other end of the push rod being pushed out or retracted, the closed switch step can abut against the detection switch, so that the detection switch is closed.

[0024] A charging gun, comprising the charging gun electronic lock device described in any one of the above items.

[0025] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0026] The electronic locking device for the charging gun of the present invention uses electromechanical control for locking and unlocking control, wherein the push-out and retraction of the push rod are driven by a driving member, and the speed and state of locking and unlocking are stable and controllable; moreover, a detection switch is also provided in the electronic locking device of the charging gun, which can accurately sense the locking and unlocking status of the push rod, thereby realizing precise feedback control.

[0027] The charging gun electronic lock device of the present invention is also equipped with a manual reset system, which makes manual reset quick, easy, and reliable. The manual reset system consists of a reset rocker arm, a reset lever, a reset torsion spring, and a reset spring. The reset lever has a driving wheel contact arm and a push rod contact arm positioned opposite each other. If a mechanical and electrical failure occurs after the push rod is pushed out and locked, requiring manual reset, the reset rocker arm located outside the housing is rotated to drive the driving wheel contact arm on the reset lever, lifting the driving wheel. This disengages the teeth on the driving wheel from the teeth on the push rod. Simultaneously, the finalization contact arm on the reset lever pushes the push rod back to reset. During this manual reset process, the tooth grooves on the ejector pin and the teeth on the driving wheel are in a transmission-disconnected state, so that the ejector pin does not transmit power to the driving wheel during its retraction and reset process. The ejector pin does not need to drive the driving wheel, gear set, or drive member to rotate during its retraction and reset movement, meaning it does not need to overcome the reverse thrust caused by the driving wheel, gear set, and drive member. This reduces the reset work required. In particular, in the event of a device failure caused by a stuck gear or drive member, reset is still easy and reliable, improving the convenience of ejector pin reset and effectively reducing damage to internal components of the device. After the ejector pin is retracted and reset into place, the external force is removed, and the reset torsion spring drives the reset lever and reset rocker arm to automatically return to their original positions. The reset spring then drives the driving wheel to automatically descend and causes the teeth on the driving wheel to fall back into the transmission notch.

[0028] The charging gun of the present invention includes the charging gun electronic lock device, which has good automatic locking and unlocking functions. When used for charging electric vehicles, locking and unlocking are stable and controllable, and manual unlocking can be easily and reliably performed in the event of a fault, with high safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of the electronic lock device for a charging gun of the present invention in a specific embodiment;

[0030] Figure 2 A top view of the internal structure of the electronic lock device for a charging gun of the present invention in a specific embodiment;

[0031] Figure 3 This is a bottom view of the internal structure of the electronic lock device of the charging gun of the present invention in a specific embodiment;

[0032] Figure 4 This is a schematic structural diagram of the driving wheel in the electronic lock device of the charging gun of the present invention in a specific embodiment;

[0033] Figure 5 This is a schematic structural diagram of the ejector rod in the electronic lock device of the charging gun of the present invention in a specific embodiment;

[0034] Figure 6 Schematic diagram of the structure of the lever in the electronic lock device of the charging gun of the present invention in a specific embodiment;

[0035] Figure 7 This is a schematic diagram of the coordination structure between the ejector rod and the driving wheel in the electronic lock device of the charging gun of the present invention in a specific embodiment under normal working conditions;

[0036] Figure 8 Schematic diagram of the coordination structure of the ejector rod and the driving wheel in the electronic lock device of the charging gun of the present invention in a specific embodiment in a manual reset working state;

[0037] Figure 9 This is a structural diagram of a manual reset system in the electronic lock device of a charging gun of the present invention in a specific embodiment;

[0038] Figure 10a This is a schematic diagram of the working structure of the manual reset system in the electronic lock device of the charging gun of the present invention when the push rod starts to retract and reset;

[0039] Figure 10b Schematic diagram of the working structure of the manual reset system in the charging gun electronic lock device of the present invention in a specific embodiment of the present invention driving the ejector pin to retract and reset;

[0040] Figure 10c This is a schematic diagram of the working structure of the manual reset system in the electronic lock device of the charging gun of the present invention when the push rod is driven to retract and reset into place in a specific embodiment;

[0041] Figure 10d Schematic diagram of the working structure of the manual reset system in the electronic lock device of the charging gun of the present invention in a specific embodiment, in which the push rod is driven to return to the initial state after completing the retraction and reset;

[0042] Figure 11 Schematic diagram of the working structure of the detection switch of the electronic lock device of the charging gun of the present invention when the push rod is pushed into place in a specific embodiment;

[0043] Figure 12 Schematic diagram of the working structure of the detection switch of the electronic lock device of the charging gun of the present invention when the push rod is retracted into place in a specific embodiment;

[0044] Figure 13 This is a schematic diagram of the working structure of the detection switch of the electronic lock device of the charging gun of the present invention in specific embodiment 2 when the push rod is retracted into place;

[0045] Figure 14 This is a schematic diagram of the working structure of the detection switch of the electronic lock device of the charging gun of the present invention in the process of pushing out or retracting the ejector rod in specific embodiment 2;

[0046] Figure 15 This is a schematic diagram of the working structure of the detection switch of the electronic lock device of the charging gun of the present invention in specific embodiment 2 when the push rod is pushed into place;

[0047] Figure markings: 1-shell, 101-upper shell, 102-lower shell, 2-driving member, 3-top rod, 30-main rod body, 31-transmission notch, 310-tooth groove, 32-reset step, 33-closed switch step, 34-open switch groove, 341-first open switch groove, 342-second open switch groove, 4-driving wheel, 41-meshing part, 42-extension rod, 420-tooth, 5-reset rocker arm, 6-gear set, 61-motor gear, 62-secondary bevel gear, 7-worm, 8-reset lever, 81-driving wheel contact arm, 82-top rod contact arm, 9-reset torsion spring, 10-reset spring, 11-detection switch. DETAILED DESCRIPTION

[0048] The technical solution of the present invention is further described in detail below in conjunction with specific embodiments and drawings, but the protection scope and implementation methods of the present invention are not limited thereto. In the description of specific embodiments, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships in which the inventive product is usually placed when in use, and the terms "first", "second", etc., are only used to distinguish the descriptions, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the structure or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention, let alone an indication or implication of relative importance.

[0049] Example 1

[0050] See also Figures 1 to 3 As shown, the charging gun electronic lock device of this embodiment includes a housing 1, and a driving member 2 and a push rod 3 disposed within the housing 1. Specifically, the housing 1 includes an upper housing 101 and a lower housing 102 that can be interlocked. The lower housing 102 has a cavity for accommodating the driving member 2 and various components. The driving member 2 and push rod 3 are both disposed within the lower housing 102, and the upper housing 101 is screwed onto the lower housing 102.

[0051] One end of the push rod 3 is located within the housing 1 and is in transmission connection with the driver 2. The other end of the push rod 3 forms a main rod body 30, which extends through one end surface of the lower housing 102. Driven by the driver 2, the main rod body 30 of the push rod 3 can be extended or retracted. During operation, the driver 2 drives the main rod body 30 of the push rod 3 to extend for locking or retract for unlocking.

[0052] In a specific embodiment, the driving member 2 adopts a servo motor, which can be servo-controlled by a control system, thereby realizing electromechanical control of locking and unlocking of the charging gun electronic locking device, so that the speed and state of locking and unlocking are stable and controllable.

[0053] Specifically, one end of the push rod 3 located inside the housing 1 is transmission-connected to the driving member 2 via a driving wheel 4 .

[0054] See also Figure 4 As shown, the driving wheel 4 has a meshing portion 41 and an extension rod portion 42 extending downwardly along the axial direction of the meshing portion 41. The meshing portion 41 of the driving wheel 4 is meshed with the driving member 2 for transmission connection, and the extension rod portion 42 has teeth 420. Figure 5 As shown, a transmission notch 31 is provided on one end of the push rod 3 located within the housing 1, and the end surface where the teeth 420 are located is located within the transmission notch 31. Furthermore, a tooth groove 310 is provided at the edge of the transmission notch 31 to correspond to the teeth 420. The teeth of the tooth groove 310, located on the front side of the push rod 3 in the direction of push-out, protrude toward the middle of the transmission notch 31, and the teeth 420 engage with the tooth groove 310. Thus, under the drive of the driving member 2, the driving member 2 engages with the meshing portion 41 of the driving wheel 4, driving the extension rod 42 to rotate, and driving the teeth 420 on the extension rod 42 to rotate. The teeth 420 engage with the tooth groove 310, thereby driving the main rod body 30 of the push rod 3 to be pushed out or retracted.

[0055] See also Figure 4As shown, the transmission groove 31 is an irregular circular groove, including a large circular groove at the front end along the pushing direction of the push rod 3 and a small circular groove at the rear end along the pushing direction of the push rod 3. The large circular groove and the small circular groove are interconnected and partially overlap. The tooth groove 310 is in the large circular groove and is located at the critical point between the large circular groove and the small circular groove. The tooth 420 always maintains an interference fit with the inner wall of the large circular groove outside the tooth groove 310. The tooth 420 rotates one circle in the large circular groove and will slide into the tooth groove 310. When the teeth 420 cooperate with the tooth groove 310 to push the ejector 3 into place, the top of the teeth 420 and the teeth of the tooth groove 310 on the front side along the ejection direction of the ejector 3 are still pressed against each other, while the extension rod 42 is now located in the small circular groove. Due to the restriction of the teeth of the tooth groove 310 on the front side along the ejection direction of the ejector 3, before and after the ejector 3 is pushed into place, the teeth 420 rotate in the direction of pushing the ejector 3 without external force, and the teeth 420 will not be separated from the tooth groove 310. Similarly, when the teeth 420 cooperate with the tooth groove 310 to pull the ejector 3 back into place, the top of the teeth 420 and the teeth of the tooth groove 310 on the rear side along the ejection direction of the ejector 3 are still pressed against each other, while the extension rod 42 is located in the large circular groove. Even before and after the ejector 3 is retracted into place, the teeth 420 are still located in the tooth groove 310. In this way, the teeth 420 and the tooth grooves 310 always maintain a stable meshing transmission cooperation relationship during normal locking and unlocking processes.

[0056] In addition, optionally, the meshing portion 41 of the driving wheel 4 is connected to the driving member 2 by meshing transmission via a gear set 6 and a worm 7. The gear set 6 includes a motor gear 61 disposed at the output end of the driving member 2 for meshing transmission with the gear on the worm 7, and a secondary helical gear 62 disposed between the worm 7 and the driving wheel 4 for meshing transmission with the worm 7 and the driving wheel 4. Furthermore, the worm 7 is arranged parallel to the output axis of the driving member 2 to save space. Thus, through the transmission connection of the gear set 6 and the worm 7, the output torque of the driving member 2 on the driving wheel 4 can be effectively increased, and ultimately the pushing and pulling torque on the push rod 3 can be increased.

[0057] The charging gun electronic lock device of this embodiment is also provided with a manual reset system for convenient and quick manual unlocking when an electromechanical or other fault occurs after the device is locked. The manual reset system includes a reset rocker arm 5 disposed on the outside of the housing 1. After the push rod 3 is pushed out, the reset rocker arm 5 is moved to drive the push rod 3 to separate from the driving wheel 4 and retract and reset. Specifically, after the push rod 3 is pushed out, the reset rocker arm 5 is moved by external force to drive the teeth 420 to disengage from the tooth groove 310, thereby separating the push rod 3 from the driving wheel 4 and then driving the push rod 3 to retract and reset.

[0058] Furthermore, the reset rocker arm 5 is arranged outside the housing 1, and the manual reset system further includes a reset lever 8 arranged inside the housing 1, wherein the shaft of the reset lever 8 is perpendicular to the extension direction of the push rod 3, and the reset lever 8 is fixedly connected to the reset rocker arm 5 and can be driven to rotate by the reset rocker arm 5. Figure 6 As shown, the reset lever 8 has an integrated driving wheel contact arm 81 and a push rod contact arm 82, and the driving wheel contact arm 81 and the push rod contact arm 82 are both perpendicular to the rod body of the reset lever 8, and the driving wheel contact arm 81 and the push rod contact arm 82 are arranged opposite to each other. Correspondingly, the driving wheel contact arm 81 is located within the circular axial range of the meshing portion 41 of the driving wheel 4. When the reset rocker arm 5 is toggled to drive the reset lever 8 to rotate, the driving wheel contact arm 81 interferes with the meshing portion 41 of the driving wheel 4 in the direction of rotation of the rod body of the reset lever 8, and can lift the driving wheel 4; and a reset step 32 corresponding to the push rod contact arm 82 is provided on the push rod 3. When the reset rocker arm 5 is toggled to drive the reset lever 8 to rotate, after the driving wheel contact arm 81 lifts the driving wheel 4, the reset rocker arm 5 drives the reset lever 8 to continue to rotate, and the push rod contact arm 82 interferes with the reset step 32 in the direction of rotation of the rod body of the reset lever 8 and drives the push rod 3 to retract and reset.

[0059] In this way, after the push rod 3 is pushed out, the reset rocker arm 5 is moved to drive the reset lever 8 to rotate. When the reset lever 8 rotates under the drive of the reset rocker arm 5, the push rod contact arm 82 and the driving wheel contact arm 81 rotate along with the reset lever 8, causing the driving wheel contact arm 81 to contact the driving wheel 4 and lift the driving wheel 4, causing the teeth 420 to disengage from the tooth grooves 310. The reset rocker arm 5 drives the reset lever 8 to continue rotating, and the push rod contact arm 82 contacts the push rod 3 and drives the push rod 3 to retract and reset. After the tooth 420 disengages from the tooth groove 310 and the push rod 3 retracts and returns to the closed initial position, the tooth 420 will be located axially above the transmission groove 31, and then the end face where the tooth 420 is located is reset to be located inside the transmission groove 31. After the device fault is eliminated, the driving member 2 continues to drive the tooth 420 to rotate idly along the transmission groove 31 for one circle, so that the tooth 420 can be restored to the initial position where it is meshed with the tooth groove 310, so that the electronic lock device can continue to perform normal electromechanical locking work.

[0060] During this manual reset procedure, see Figure 7 and Figure 8As shown, the tooth grooves 310 on the push rod 3 and the teeth 420 on the driving wheel 4 are in a transmission separation state, so that the push rod 3 will not transmit to the driving wheel 4 during the retraction and reset process. During the retraction and reset movement of the push rod 3, there is no need to drive the driving wheel 4, the gear set 6 and the driving member 2 to rotate, that is, there is no need to overcome the reverse thrust caused by the driving wheel 4, the gear set 6 and the driving member 2, so the reset work is smaller. Especially when encountering a device failure caused by a stuck gear or driving member, the reset is still easy and reliable, which improves the convenience of resetting the push rod 3 and can effectively reduce damage to internal components of the device.

[0061] In this embodiment, preferably, the driving wheel contact arms 81 and the push rod contact arms 82 are each symmetrically arranged along the center of the driving wheel 4. Correspondingly, the push rod 3 has reset steps 32 on both its left and right sides, corresponding to the push rod contact arms 82. The symmetrical arrangement of the driving wheel contact arms 81 and the push rod contact arms 82 balances the forces exerted on the driving wheel 4 when it is lifted and the push rod 3 when it is retracted, ensuring a more stable manual reset process.

[0062] See also Figure 9 As shown, a return torsion spring 9 is sleeved on the return lever 8, wherein the two ends of the return torsion spring 9 are respectively connected to the housing 1 and the return lever 8. When the return rocker arm 5 drives the return lever 8 to rotate and retract the push rod 3, the return torsion spring 9 will be compressed. When the push rod 3 retracts and returns to its original position and the external force applied to the return rocker arm 5 is removed, the elastic potential energy accumulated in the return torsion spring 9 will drive the return lever 8 and the return rocker arm 5 to rotate in the opposite direction, causing the return lever 8 and the return rocker arm 5 to automatically return to their initial positions, ready for the next manual reset.

[0063] Furthermore, a return spring 10 is disposed between the top of the driving wheel 4 and the housing 1. One end of the return spring 10 is connected to the housing 1, and the other end is connected to the top of the driving wheel 4. As the return lever 8 rotates, driving the driving wheel contact arm 81 to contact and lift the driving wheel 4, the return spring 10 is compressed. When the push rod 3 retracts and resets to its original position, the external force exerted on the reset rocker arm 5 is removed, and the return lever 8 is reset under the drive of the return torsion spring 9, the accumulated elastic potential energy of the return spring 10 drives the driving wheel 4 downward, automatically returning the end surface of the tooth 420 to within the transmission notch 31. This ensures continued meshing and transmission of the tooth 420 with the tooth groove 310 after the push rod 3 is reset.

[0064] See also Figure 10a to Figure 10dAs shown, the manual reset system, consisting of a reset rocker arm 5, a reset lever 8, a reset torsion spring 9, and a reset spring 10, manually resets the ejector pin 3 (the arrow in the figure indicates the direction of movement of the reset rocker arm 5; the upper view is a side view of the manual reset operation, and the lower view is a corresponding bottom view). When manually resetting the ejector pin 3 after it has been pushed out, the reset rocker arm 5 is moved to rotate the reset lever 8. The ejector pin contact arm 82 and the driving wheel contact arm 81 on the reset lever 8 operate to sequentially lift the driving wheel 4 and retract the ejector pin 3. After the ejector pin 3 has retracted and reset, the reset torsion spring 9 forces the reset lever 8 and the reset rocker arm 5 to rotate in the opposite direction and return to their original positions. The reset spring 10 then forces the driving wheel 4 downward, automatically returning the end surface of the tooth 420 to its position within the transmission notch 31.

[0065] Furthermore, in this charging gun electronic lock device, a detection switch 11 is located within the housing 1. This switch detects the push-out and retraction of the ejector pin 3. Furthermore, the detection switch 11 is servo-connected to the driver 2 via a controller. Upon detecting the push-out or retraction of the ejector pin 3, the switch sends a feedback signal to the controller, which in turn issues a command to control the operation of the driver 2, thereby implementing electromechanical feedback control for locking and unlocking the charging gun electronic lock device.

[0066] Specifically, a closing switch step 33 and an opening switch groove 34 are sequentially provided on one end of the push rod 3 located in the housing 1 along the pushing direction of the push rod 3. Figure 11 and Figure 12 As shown, when the main rod body 30 of the push rod 3 is pushed into place, the closing switch step 33 will correspond to and abut the detection switch 11, closing the detection switch 11 and sending a closing signal. When the main rod body 30 of the push rod 3 is retracted into place, the opening switch groove 34 will correspond to the detection switch 11 and be separated from the detection switch 11, turning the detection switch 11 on and sending an opening signal. The controller, which is servo-connected to the detection switch 11 and the driver 2, can control the circuit of the driver 2 according to the closing or opening signal of the detection switch 11, and thus control the operation of the driver 2, thereby achieving precise locking and unlocking control of the charging gun electronic lock device.

[0067] Example 2

[0068] The difference between the charging gun electronic lock device of this embodiment and embodiment 1 is that, see Figures 13 to 15 As shown, on one end of the push rod 3 located in the housing 1 , a first opening switch groove 341 , a closing switch step 33 and a second opening switch groove 342 are sequentially provided along the pushing direction of the push rod 3 .

[0069] When the main rod body 30 of the ejector rod 3 is retracted into position, the first opening switch groove 341 will correspond to the detection switch 11 and be separated from the detection switch 11. At this time, the detection switch 11 is open. Similarly, when the main rod body 30 of the ejector rod 3 is pushed out into position, the second opening switch groove 342 will correspond to the detection switch 11 and be separated from the detection switch 11. At this time, the detection switch 11 is also in the open state. During the process of pushing out or retracting the main rod body 30 of the ejector rod 3, the closing switch step 33 will pass back and forth between the detection switch 11 and come into contact with the detection switch 11, closing the detection switch 11.

[0070] In this way, the push-out and retraction of the main rod body 30 of the ejector rod 3 are both determined to be in position by the on-switch signal emitted by the detection switch 11. Moreover, the end of the ejector rod 3 located inside the housing 1 only contacts the detection switch 11 during the intermediate process of push-out and retraction. After the ejector rod 3 is pushed out or retracted to its position, the end of the ejector rod 3 located inside the housing 1 will no longer contact the detection switch 11. Therefore, there is no need to determine whether the ejector rod 3 is in position by abutting against the detection switch 11, that is, there is no need to determine whether the driving member 2 is in position by being locked, which is beneficial to improving the service life of the driving member 2.

[0071] Example 3

[0072] This embodiment provides a charging gun, and the charging gun includes the charging gun electronic lock device described in Example 1 or Example 2. The charging gun has excellent automatic locking and unlocking functions. When used to charge an electric vehicle, locking and unlocking are stable and controllable. After locking, it can effectively prevent separation from the vehicle. In the event of a malfunction, it can be manually unlocked easily and reliably, providing high safety performance.

[0073] The above embodiments are merely preferred embodiments of the present invention and are intended to provide a further detailed description of the technical solutions of the present invention. However, the scope of protection and implementation of the present invention are not limited thereto. Any changes, combinations, deletions, replacements, or modifications that do not depart from the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A charging gun electronic lock device, characterized in that: It comprises a housing (1), a driving member (2) and a push rod (3) arranged in the housing (1); one end of the push rod (3) is located in the housing (1) and is transmission-connected to the driving member (2) via a driving wheel (4); under the drive of the driving member (2), the other end of the push rod (3) can be pushed out or retracted; A reset rocker arm (5) is also provided on the outer side of the housing (1); after the push rod (3) is pushed out, the reset rocker arm (5) can be toggled to drive the push rod (3) to separate from the driving wheel (4) and retract and reset; The driving wheel (4) has a meshing portion (41) and an extension rod portion (42) extending and protruding along the axial direction of the meshing portion (41); the extension rod portion (42) has teeth (420); the meshing portion (41) is meshed and transmission-connected with the driving member (2); A transmission notch (31) is provided on one end of the push rod (3) located in the housing (1); the end surface where the teeth (420) are located is located in the transmission notch (31); and a tooth groove (310) corresponding to and adapted to the teeth (420) is provided at the edge of the transmission notch (31), and the teeth (420) mesh with the tooth groove (310); The meshing portion (41) is meshingly connected to the driving member (2) via a gear set (6) and a worm (7); A reset lever (8) connected to the reset rocker arm (5) is provided in the housing (1); the reset lever (8) has a driving wheel contact arm (81) and a push rod contact arm (82); the driving wheel contact arm (81) and the push rod contact arm (82) are arranged opposite to each other; After the push rod (3) is pushed out, the reset rocker arm (5) is moved to drive the reset lever (8) to rotate, so that the driving wheel contact arm (81) contacts the driving wheel (4) and pushes up the driving wheel (4) to separate the tooth (420) from the tooth groove (310); the reset lever (8) is further rotated, and the push rod contact arm (82) contacts the push rod (3) and drives the push rod (3) to retract and reset.

2. The electronic lock device for a charging gun according to claim 1, characterized in that: Under the drive of the driving member (2), the teeth (420) cooperate with the tooth groove (310) and drive the other end of the push rod (3) to be pushed out or retracted; and after the push rod (3) is pushed out, the reset rocker arm (5) is moved to drive the teeth (420) to separate from the tooth groove (310) and drive the push rod (3) to retract and reset.

3. The electronic lock device for a charging gun according to claim 2, characterized in that: The push rod (3) has a reset step (32) corresponding to the push rod contact arm (82); the push rod contact arm (82) interferes with the reset step (32) along the rotation direction of driving the push rod (3) to retract and reset.

4. The electronic lock device for a charging gun according to claim 1, characterized in that: The driving wheel contact arm (81) and the push rod contact arm (82) each include two and are symmetrically arranged along the center of the driving wheel (4).

5. The electronic lock device for a charging gun according to claim 1, characterized in that: A reset torsion spring (9) is sleeved on the reset lever (8); two ends of the reset torsion spring (9) are respectively connected to act on the housing (1) and the reset lever (8).

6. The electronic lock device for a charging gun according to claim 1, characterized in that: A return spring (10) is provided on the top of the driving wheel (4); one end of the return spring (10) is connected to the housing (1), and the other end is connected to the top of the driving wheel (4).

7. The electronic lock device for a charging gun according to any one of claims 1 to 6, characterized in that: A detection switch (11) is also provided in the housing (1) for detecting whether the push rod (3) is extended or retracted into position.

8. The electronic lock device for a charging gun according to claim 7, characterized in that: A closing switch step (33) and an opening switch groove (34) are sequentially provided on one end of the push rod (3) located inside the housing (1) along the pushing direction of the push rod (3); When the other end of the push rod (3) is pushed into place, the closing switch step (33) corresponds to and abuts against the detection switch (11), so that the detection switch (11) is closed; when the other end of the push rod (3) is retracted into place, the opening switch groove (34) corresponds to the detection switch (11) and is in a mutually separated state with the detection switch (11), and the detection switch (11) is opened.

9. The electronic lock device for a charging gun according to claim 7, characterized in that: A first opening switch groove (341), a closing switch step (33), and a second opening switch groove (342) are sequentially provided on one end of the push rod (3) located in the housing (1) along the pushing direction of the push rod (3); When the other end of the push rod (3) is retracted into position or pushed out into position, the first open switch groove (341) and the second open switch groove (342) respectively correspond to the detection switch (11) and are in a mutually separated state with the detection switch (11), and the detection switch (11) is opened; and in the middle process of the other end of the push rod (3) being pushed out or retracted, the closed switch step (33) can abut against the detection switch (11), so that the detection switch (11) is closed.

10. A charging gun, characterized in that: The charging gun includes the charging gun electronic lock device according to any one of claims 1 to 9.

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