Charging gun positioning device for electric vehicle

Abstract

The application relates to the field of electric vehicle charging, in particular to a charging gun positioning device for electric vehicles, which comprises an upper cover and a lower cover, the upper cover is installed on the lower cover, an electric lock is arranged in the lower cover, the electric lock comprises a locking mechanism, a transmission assembly, a control assembly and an emergency mechanism, the locking mechanism, the transmission assembly and the control assembly are all installed in the lower cover, the transmission assembly and the control assembly are both connected with the locking mechanism, the transmission assembly is connected with the control assembly, the emergency mechanism is installed in the lower cover and connected with the locking mechanism, the emergency mechanism is used for controlling the locking mechanism to work in the case that the electric lock fails, the application improves the problem that the electric lock cannot be unlocked after the electric lock fails in the traditional mode, and the effect that the electric lock can still be unlocked after the electric lock fails can be achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electric vehicle charging, in particular to a charging gun positioning device for electric vehicles. BACKGROUND

[0002] An electric vehicle refers to a vehicle that is powered by a vehicle-mounted power source and travels by driving wheels through an electric motor. The vehicle-mounted power source is mainly a storage battery. In order to maintain sufficient driving range of the electric vehicle, the storage battery needs to be charged frequently.

[0003] When charging the storage battery on the electric vehicle, the charging of the electric vehicle is usually carried out by inserting a charging gun in a parking lot into the charging port of the electric vehicle. Since the electric vehicle needs to be kept stable during charging, an electric lock is usually provided in the charging port of the electric vehicle to position the charging gun inserted into the charging port, so as to maintain the stability of charging.

[0004] However, the electric lock is prone to failure after long-term use. When the electric lock fails during charging of the electric vehicle, the charging gun cannot be pulled out of the charging port, thereby delaying the user's travel. SUMMARY

[0005] In order to facilitate unlocking when the electric lock fails, the present application provides a charging gun positioning device for electric vehicles.

[0006] The present application provides a charging gun positioning device for electric vehicles, which adopts the following technical solutions:

[0007] A charging gun positioning device for electric vehicles, comprising an upper cover and a lower cover, the upper cover is installed on the lower cover, the lower cover is provided with an electric lock inside, the electric lock comprises a locking mechanism, a transmission assembly, a control assembly and an emergency mechanism, the locking mechanism, the transmission assembly, the control assembly and the emergency mechanism are all installed in the lower cover, and the transmission assembly and the control assembly are connected with the locking mechanism, the transmission assembly and the control assembly are connected, the emergency mechanism is connected with the locking mechanism, and the emergency mechanism is used to control the locking mechanism to work in case of failure of the electric lock.

[0008] By adopting the above technical solutions, the transmission assembly controls the locking mechanism to work, and at the same time the locking mechanism controls the transmission assembly to act through the control assembly, so that the locking mechanism positions the charging gun, thereby enabling the charging gun to stably charge the electric vehicle. When the electric lock fails, the locking mechanism is unlocked by the emergency mechanism, so that the locking mechanism can exit the locked state in an emergency, and the charging gun can be pulled out of the charging port, thereby facilitating the unlocking action when the electric lock fails.

[0009] In one specific implementation, the transmission assembly includes a motor, an electrically controlled gear one, an electrically controlled gear two, an electrically controlled gear three and an electrically controlled gear four, the electrically controlled gear one is coaxially installed on the output shaft of the motor, the electrically controlled gear two is installed in the lower cover and engages with the electrically controlled gear one, the electrically controlled gear three is coaxially installed on the electrically controlled gear two, the electrically controlled gear four is installed in the lower cover and engages with the electrically controlled gear three, the electrically controlled gear four is connected with the locking mechanism, the control assembly is installed in the lower cover and connected with the locking mechanism.

[0010] By adopting the above technical scheme, when the electric lock is working, the electrically controlled gear one is driven to rotate by the motor, thereby driving the electrically controlled gear two to rotate, so that the electrically controlled gear three is driven to rotate by the electrically controlled gear two, thereby driving the electrically controlled gear four to rotate, so that the electrically controlled gear four drives the locking mechanism to act, facilitating the locking mechanism to realize positioning of the charging gun. During the process that the transmission assembly controls the locking mechanism to work, the locking mechanism triggers the control assembly to work, so that the control assembly controls the start and stop of the motor, thereby facilitating the locking and unlocking actions of the electric lock.

[0011] In one specific implementation, the control assembly includes an electrically controlled switch and a circuit board, the circuit board is installed in the lower cover, the electrically controlled switch is installed on the circuit board, the electrically controlled switch is connected with the locking mechanism and electrically connected with the motor.

[0012] By adopting the above technical scheme, during the process that the locking mechanism realizes the locking action, the locking mechanism touches the electrically controlled switch, so that the electrically controlled switch can control the start and stop of the motor, thereby enabling the locking mechanism to stop at the current position after realizing the locking action, thereby facilitating positioning of the charging gun.

[0013] In one specific implementation, the locking mechanism includes a plug column, a pin shaft and a connecting rod, one end of the pin shaft is connected with the rotating shaft of the electrically controlled gear four, the other end is connected with the lower cover, the pin shaft is connected with the electrically controlled switch and the emergency mechanism, the connecting rod is installed on the pin shaft and the axis of the connecting rod is parallel to the axis of the pin shaft, the plug column is installed in the lower cover and one end of the plug column extends outward through the bottom wall of the lower cover, the other end of the plug column is connected with the connecting rod.

[0014] By adopting the above technical scheme, the electrically controlled gear four rotates under the control of the motor, thereby driving the pin shaft to rotate, so that the pin shaft drives the connecting rod to rotate, and the connecting rod drives the plug column to extend out of the lower cover, thereby facilitating positioning of the charging gun. When the locking mechanism is in the locked state and the transmission assembly fails, the emergency mechanism drives the pin shaft to rotate instead of the transmission assembly, thereby driving the connecting rod to rotate and making the plug column retract into the lower cover, thereby releasing the locked state, thereby facilitating the charging gun to be pulled out.

[0015] In one specific implementation, the emergency mechanism includes an emergency plate, an emergency shaft, an emergency gear one and an emergency gear two, the emergency shaft is installed in the lower cover, the emergency plate is installed at one end of the emergency shaft, the emergency gear one is installed at the other end of the emergency shaft, the emergency gear two is installed at the end of the pin shaft away from the electric control gear four, and the emergency gear one and the emergency gear two are engaged.

[0016] By adopting the above technical scheme, when emergency unlocking is needed, the emergency plate is rotated to drive the emergency shaft to rotate, so that the emergency shaft drives the emergency gear one to rotate, the emergency gear one drives the emergency gear two to rotate, and the emergency gear two drives the pin shaft to rotate, thereby facilitating the contact locking action of the locking mechanism to facilitate the charging gun to be pulled out of the charging port.

[0017] In one specific implementation, the side wall of the emergency shaft is provided with an emergency block one, the side wall of the emergency gear one is provided with an emergency block two, and the emergency block one and the emergency block two are in contact.

[0018] By adopting the above technical scheme, when the electric lock is normally working, the pin shaft drives the emergency gear two to rotate, the emergency gear two drives the emergency gear one to rotate, and the emergency gear one drives the emergency block two to rotate, and when the locking mechanism completes the locking action, the emergency block two is in contact with the emergency block one. When the electric lock needs to be unlocked urgently, the emergency plate drives the emergency shaft to rotate, the emergency shaft drives the emergency block one to rotate, the emergency block one drives the emergency block two to rotate, the emergency block two drives the emergency gear one to rotate, the emergency gear one drives the emergency gear two to rotate, and the locking mechanism is unlocked, thereby facilitating the locking mechanism to be released from the locked state.

[0019] In one specific implementation, the side wall of the electric control gear four is provided with a connecting block, the side wall of the connecting block away from the electric control gear four is provided with a connecting shaft, the side wall of the pin shaft is provided with a butt joint groove, the connecting block is inserted into the butt joint groove, and the groove bottom wall of the butt joint groove is provided with a sliding groove, and the connecting shaft is inserted into the sliding groove.

[0020] By adopting the above technical scheme, when the electric control gear four rotates, the pin shaft is driven to rotate by the connecting block, thereby facilitating the driving action of the locking mechanism and realizing the locking and unlocking actions.

[0021] In one specific implementation, the emergency mechanism includes an emergency block, an emergency gear and a disengaging plate, the emergency gear is installed on the pin shaft away from the fourth electric control gear through a connecting piece, the emergency block is installed in the lower cover near the emergency gear, and one end of the emergency block extends out of the lower cover, an emergency gear rack is arranged on the side wall of the emergency block, the end of the pin shaft away from the fourth electric control gear is provided with a limiting plate, the disengaging plate is installed on the side wall of the emergency block, and a disengaging block is arranged on the side wall of the disengaging plate and abuts against the side wall of the limiting plate.

[0022] By adopting the above technical scheme, when emergency unlocking is needed, the emergency block is pressed to move the emergency block and the disengaging plate, so that the disengaging block on the disengaging plate pushes the limiting plate to move, thereby making the limiting plate drive the pin shaft to move, so that the connecting block is separated from the butt joint groove, and then the emergency gear rack on the emergency block drives the emergency gear to rotate, so that the pin shaft is driven to rotate through the connecting piece, thereby making the pin shaft drive the insertion column to move, so that the locking state is released, and the user can pull out the charging gun from the charging port, thereby facilitating the emergency unlocking action.

[0023] In one specific implementation, a spring is arranged on the pin shaft, one end of the spring is connected with the lower cover, and the other end of the spring is connected with the side wall of the limiting plate.

[0024] By adopting the above technical scheme, under the normal working condition of the electric lock, the limiting plate drives the pin shaft to move towards the fourth electric control gear through the spring abutting against the limiting plate, so that the connecting block and the butt joint groove are kept in close connection, thereby facilitating the rotation of the pin shaft when the fourth electric control gear rotates, and the rotation of the pin shaft is kept stable.

[0025] In one specific implementation, the connecting piece includes a connecting tooth and a connecting claw, the connecting tooth is installed on the inner wall of the emergency gear, the connecting claw is installed on the side wall of the pin shaft away from the fourth electric control gear, the connecting claw is inserted into the tooth groove of the connecting tooth, and a connecting piece is arranged on the side wall of the pin shaft near the connecting claw and connected with the connecting claw.

[0026] By adopting the above technical scheme, under the normal working condition of the electric lock, the motor drives the pin shaft to rotate through the fourth electric control gear, so that the connecting claw rotates, the connecting tooth and the connecting claw rotate relative to each other, and the emergency gear does not rotate, thereby facilitating the transmission assembly to control the working of the locking mechanism. When the electric lock needs emergency unlocking due to failure, the emergency block is pushed to drive the emergency gear rack on the emergency block to rotate, so that the connecting claw is inserted into the tooth groove of the connecting tooth in the emergency gear, and the side wall of the connecting claw abuts against the side wall of the tooth groove of the connecting tooth, thereby making the connecting tooth drive the connecting claw to rotate, so that the pin shaft is driven to rotate, thereby realizing the emergency unlocking action.

[0027] To sum up, the present application includes at least one of the following beneficial effects:

[0028] 1. The present application sets up a transmission assembly, which facilitates the power supply for the locking of the electric lock through the transmission assembly, and facilitates the automatic locking action of the electric lock.

[0029] 2. The present application sets up a locking mechanism, which facilitates the positioning action of the charging gun through the locking mechanism, so as to maintain the stability of the electric vehicle charging.

[0030] 3. The present application sets up an emergency mechanism, which facilitates the emergency unlocking action when the electric lock fails through the emergency mechanism, and facilitates the pulling out of the charging gun from the charging port. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a structural schematic diagram of the charging gun positioning device of the present application.

[0032] Figure 2 is a structural schematic diagram of the electric lock in the first embodiment of the present application.

[0033] Figure 3 is a schematic diagram of the installation relationship between the emergency gear one and the emergency gear two in the first embodiment of the present application.

[0034] Figure 4 is a schematic diagram of the installation relationship between the locking mechanism and the emergency mechanism in the first embodiment of the present application.

[0035] Figure 5 is an exploded view of the emergency plate and the emergency shaft in the first embodiment of the present application.

[0036] Figure 6 is a schematic diagram of the position relationship between the locking mechanism and the emergency mechanism in the locked state in the first embodiment of the present application.

[0037] Figure 7 is a structural schematic diagram of the emergency mechanism in the second embodiment of the present application.

[0038] Figure 8 is a schematic diagram of the installation relationship between the emergency mechanism and the locking mechanism in the second embodiment of the present application.

[0039] Figure 9 is an exploded view of the emergency mechanism and the locking mechanism in the second embodiment of the present application.

[0040] Figure 10 is a schematic diagram of the installation of the connecting claw in the second embodiment of the present application.

[0041] Figure 11 is a sectional view of the connecting piece in the second embodiment of the present application.

[0042] Figure 12is a sectional view of the pin shaft in Embodiment Two of the present application.

[0043] Reference signs:

[0044] 1, lower cover; 11, locking slider; 2, upper cover; 31, transmission assembly; 311, motor; 312, electric control gear one; 313, electric control gear two; 314, electric control gear three; 315, electric control gear four; 316, connecting block; 317, connecting shaft; 32, control assembly; 321, electric control switch; 322, circuit board; 4, locking mechanism; 41, pin shaft; 411, butt joint groove; 412, sliding groove; 413, limiting column; 42, connecting rod; 43, insertion column; 44, locking groove; 45, insertion groove; 46, driving block; 5, emergency mechanism; 51, emergency plate; 52, emergency shaft; 521, emergency block one; 522, emergency groove; 53, emergency gear one; 531, emergency block two; 54, emergency gear two; 55, emergency block; 551, emergency rack; 56, emergency gear; 57, disengagement plate; 571, disengagement block; 58, limiting plate; 59, connecting piece; 591, connecting tooth; 592, connecting claw; 593, connecting piece; 510, spring. DETAILED DESCRIPTION

[0045] The present application will be further described in detail below with reference to the accompanying drawings.

[0046] Embodiment One:

[0047] The embodiment of the present application discloses a charging gun positioning device for electric vehicles, referring to Figure 1 and Figure 2 , comprising a lower cover 1 and an upper cover 2, the upper cover 2 is fixedly installed on the lower cover 1. An electric lock is installed in the lower cover 1, the electric lock comprises a locking mechanism 4, a transmission assembly 31, a control assembly 32 and an emergency mechanism 5, the locking mechanism 4, the transmission assembly 31, the control assembly 32 and the emergency mechanism 5 are all installed in the lower cover 1, and the transmission assembly 31 and the control assembly 32 are both connected with the locking mechanism 4, the transmission assembly 31 and the control assembly 32 are connected, and the locking mechanism 4 is connected with the emergency mechanism 5.

[0048] Referring to Figure 1 and Figure 2 , when the charging gun is plugged into the charging port, the transmission assembly 31 drives the locking mechanism 4 to work, the locking mechanism 4 controls the transmission assembly 31 to work through the control assembly 32, so that the locking mechanism 4 positions the charging gun, thereby making the charging gun and the charging port keep stable connection. When the electric lock fails, the locking mechanism 4 is driven to act by the emergency mechanism 5, so that the locking mechanism 4 is in the state of being unlocked, thereby facilitating the charging gun to be pulled out of the charging port.

[0049] Referring to Figure 2, transmission assembly 31 includes motor 311, electric control gear one 312, electric control gear two 313, electric control gear three 314 and electric control gear four 315, motor 311 is installed in the lower cover 1, electric control gear one 312 is coaxially installed on the output shaft of motor 311, electric control gear two 313 is rotatably installed in the lower cover 1, and electric control gear two 313 is engaged with electric control gear one 312, electric control gear three 314 is coaxially installed on electric control gear two 313, electric control gear four 315 is rotatably installed in the lower cover 1, and electric control gear four 315 is engaged with electric control gear three 314. Electric control gear four 315 is connected with locking mechanism 4, control assembly 32 is installed in the lower cover 1 close to locking mechanism 4, and locking mechanism 4 is connected with control assembly 32, and control assembly 32 is connected with motor 311.

[0050] Referring to Figure 2 , the motor 311 drives the electric control gear one 312 to rotate, so that the electric control gear one 312 drives the electric control gear two 313 to rotate, so that the electric control gear two 313 drives the electric control gear three 314 to rotate, the electric control gear three 314 drives the electric control gear four 315 to rotate, so that the electric control gear four 315 drives the locking mechanism 4 to work, so as to realize the action of locking, at the same time, the locking mechanism 4 triggers the control assembly 32, so that the control assembly 32 controls the start and stop of the motor 311, thereby realizing the action of automatic locking and unlocking.

[0051] Referring to Figure 2 , the control assembly 32 includes electric control switch 321 and circuit board 322, the electric control switch 321 is fixedly installed on the circuit board 322, the circuit board 322 is fixedly installed in the lower cover 1, and the electric control switch 321 is electrically connected with the motor 311. The electric control switch 321 is also connected with the locking mechanism 4.

[0052] Referring to Figure 2 , in the working process of locking and unlocking, the locking mechanism 4 touches the electric control switch 321, so that the electric control switch 321 controls the start and stop of the motor 311, so as to control the electric lock to automatically realize the action of locking and unlocking the charging gun.

[0053] Referring to Figure 2 and Figure 3The locking mechanism 4 comprises a post 43, a pin shaft 41 and a connecting rod 42. One end of the pin shaft 41 is fixedly connected with the rotating shaft of the electric control gear four 315, and the other end is rotatably installed in the lower cover 1. One end of the connecting rod 42 is fixedly connected with the side wall of the electric control gear four 315, and the other end is fixedly connected with the side wall of the end of the pin shaft 41 away from the electric control gear four 315. The post 43 is slidably installed in the lower cover 1 in a direction perpendicular to the connecting rod 42, and one end of the post 43 extends out of the bottom wall of the lower cover 1. A slot 45 is formed in the end of the post 43 close to the connecting rod 42, and the post 43 is clamped with the connecting rod 42 through the slot 45. A locking slot 44 is formed in the side wall of the end of the post 43 away from the slot 45, and a locking slider 11 is fixedly installed on the side wall of the lower cover 1 close to the locking slot 44. The locking slider 11 is slidably connected with the locking slot 44. A driving block 46 is fixedly installed on the side wall of the pin shaft 41, and the driving block 46 is in contact with the electric control switch 321 when the pin shaft 41 rotates.

[0054] With reference to Figure 2 and Figure 3 When the electric control gear four 315 rotates, the electric control gear four 315 drives the pin shaft 41 to rotate, so that the pin shaft 41 drives the connecting rod 42 to rotate, thereby driving the connecting rod 42 to extend out of the lower cover 1 or retract into the lower cover 1. When the driving block 46 touches the electric control switch 321 due to the rotation of the pin shaft 41, the electric control switch 321 receives the signal and controls the motor 311 to continue to work, so that the post 43 completes the locking or unlocking action. After the locking or unlocking action is completed, the driving block 46 is separated from the electric control switch 321, and the electric control switch 321 controls the motor 311 to stop working.

[0055] With reference to Figure 2 and Figure 3 The emergency mechanism 5 comprises an emergency plate 51, an emergency shaft 52, an emergency gear one 53 and an emergency gear two 54. The emergency shaft 52 is rotatably installed in the lower cover 1 close to the pin shaft 41. The emergency gear one 53 is rotatably installed on the emergency shaft 52. The emergency gear two 54 is coaxially installed on the end of the pin shaft 41 away from the electric control gear four 315. The emergency gear one 53 is engaged with the emergency gear two 54.

[0056] With reference to Figure 4 An emergency block one 521 is fixedly installed on the side wall of the emergency shaft 52 close to the emergency gear one 53. An emergency block two 531 is fixedly installed on the side wall of the emergency gear two 54. The emergency block one 521 and the emergency block two 531 are in contact.

[0057] With reference to Figure 5 An emergency slot 522 is formed in the end of the emergency shaft 52 away from the emergency gear one 53. An emergency post is fixedly installed on the side wall of the emergency plate 51, and the emergency post is inserted into the emergency slot 522.

[0058] With reference to Figure 6When the pin shaft 41 rotates under the drive of the electric gear four 315, the pin shaft 41 drives the emergency gear two 54 to rotate, so that the emergency gear two 54 drives the emergency gear one 53 to rotate, thereby making the emergency gear one 53 rotate around the emergency shaft 52 and drive the emergency block two 531 to rotate around the emergency shaft 52. When the locking mechanism 4 is in the locked state, the emergency block two 531 is in contact with the emergency block one 521.

[0059] With reference to Figure 4 And Figure 6 When the locking mechanism 4 is in the locked state and the electric lock is damaged, the emergency plate 51 is rotated to drive the emergency shaft 52 to rotate through the emergency column, so that the emergency block one 521 on the emergency shaft 52 drives the emergency block two 531 to rotate, so that the emergency block two 531 drives the emergency gear one 53 to rotate, thereby making the emergency gear one 53 drive the emergency gear two 54 to rotate, so that the locking mechanism 4 is in the unlocked state.

[0060] The working principle of the embodiment is that the charging gun is inserted into the charging port of the electric vehicle, the electric motor 311 drives the electric gear one 312 to rotate, the electric gear one 312 drives the electric gear two 313 to rotate, the electric gear two 313 drives the electric gear three 314 to rotate, and the electric gear three 314 drives the electric gear four 315 to rotate, thereby driving the pin shaft 41 to rotate, and the pin shaft 41 drives the insertion column 43 to extend out of the lower cover 1 through the connecting rod 42, thereby positioning the charging gun. In the process of rotating the pin shaft 41, the driving block 46 on the pin shaft 41 touches the electric control switch 321, and when the insertion column 43 is positioned, the driving block 46 is separated from the electric control switch 321, so that the electric control switch 321 controls the electric motor 311 to stop working, thereby completing the locking action.

[0061] When the electric lock in the locked state is damaged, the emergency plate 51 is rotated to rotate the emergency shaft 52, thereby making the emergency shaft 52 drive the emergency gear one 53 to rotate through the emergency block one 521, so that the emergency gear one 53 drives the emergency gear two 54 to rotate, thereby driving the pin shaft 41 to rotate, thereby making the insertion column 43 retract into the lower cover 1, thereby releasing the positioning state.

[0062] Embodiment two:

[0063] With reference to Figure 7 And Figure 8The difference between the embodiment and the embodiment one is that the pin shaft 41 is slidably connected with the electric control gear four 315, the emergency mechanism 5 comprises an emergency block 55, an emergency gear 56 and a disengaging plate 57, the emergency gear 56 is installed at the end of the pin shaft 41 away from the electric control gear four 315. The emergency block 55 is slidably installed in the lower cover 1 close to the emergency gear 56, and one end of the emergency block 55 extends out of the lower cover 1, the emergency block 55 is fixedly installed with an emergency rack 551 close to the emergency gear 56, the emergency rack 551 is separated from the emergency gear 56 in the initial state, and the emergency rack 551 is engaged with the emergency gear 56 when emergency unlocking is needed. The disengaging plate 57 is fixedly installed on the side wall of the emergency block 55, the disengaging plate 57 is fixedly installed with a disengaging block 571 on the side wall, the pin shaft 41 is fixedly installed with a limiting plate 58 close to the disengaging block 571, and the side wall of the disengaging block 571 is in contact with the side wall of the limiting plate 58. The pin shaft 41 is further sleeved with a spring 510, one end of the spring 510 is in contact with the side wall of the limiting plate 58, and the other end is in contact with the lower cover 1.

[0064] With reference to Figure 8 and Figure 9 , the emergency gear 56 is connected with the pin shaft 41 through a connecting piece 59.

[0065] With reference to Figure 10 and Figure 11 , the connecting piece 59 comprises a connecting tooth 591 and a connecting claw 592, the connecting tooth 591 is fixedly installed on the inner ring of the emergency gear 56, one end of the connecting claw 592 is rotatably installed on the side wall of the pin shaft 41, and the other end is inserted into the tooth groove of the connecting tooth 591. The side wall of the pin shaft 41 is fixedly installed with a connecting piece 593 close to the connecting claw 592, the connecting piece 593 is an elastic piece, and one end of the connecting piece 593 is in contact with the side wall of the connecting claw 592. The side wall of the pin shaft 41 is fixedly installed with a limiting column 413 on the other side of the connecting claw 592, and the side wall of the limiting column 413 is in contact with the side wall of the connecting claw 592.

[0066] With reference to Figure 9 and Figure 11When the electric lock works normally, the electric control gear four 315 drives the pin shaft 41 to rotate counterclockwise, the connecting claw 592 is inserted into the tooth groove of the connecting tooth 591, and the rotation of the connecting claw 592 is limited by the limiting column 413, so that the connecting claw 592 drives the connecting tooth 591 to rotate, thereby driving the emergency gear 56 to rotate, since the emergency gear 56 is separated from the emergency gear 56, the emergency gear 56 does not act at this time, and the pin shaft 41 drives the insertion column 43 to extend out of the lower cover 1, thereby positioning. When the pin shaft 41 drives the insertion column 43 to retract, the pin shaft 41 drives the connecting claw 592 to rotate reversely relative to the connecting tooth 591, so that the pin shaft 41 drives the connecting claw 592 to rotate relative to the connecting tooth 591, and the claw tip of the connecting claw 592 slides along the side wall of the connecting tooth 591, so that the emergency gear 56 does not rotate, at this time, the emergency gear 56 is separated from the emergency gear 56, and the emergency gear 551 does not act. When the insertion column 43 is unlocked, the pin shaft 41 stops rotating.

[0067] Referring to Figure 9 and Figure 10 When in the locked state and the electric lock fails, the emergency block 55 is pushed into the lower cover 1, so that the disengaging block 571 abuts against the side wall of the limiting plate 58, and the limiting plate 58 is pushed away from the emergency gear 56, thereby driving the pin shaft 41 to move away from the electric control gear four 315, so that the pin shaft 41 slides along the rotation axis of the electric control gear four 315, and the pin shaft 41 is connected with the electric control gear four 315, so that the pin shaft 41 can rotate relative to the electric control gear four 315.

[0068] Referring to Figure 9 and Figure 10 In the process that the disengaging block 571 controls the pin shaft 41 to slide through the limiting plate 58, the emergency gear 551 gradually moves from the direction away from the emergency gear 56 to contact the emergency gear 56, then the emergency gear 551 is engaged with the emergency gear 56, and in the process that the emergency gear 551 continues to move into the lower cover 1, the emergency gear 551 drives the emergency gear 56 to rotate, so that the emergency gear 56 drives the connecting tooth 591 to rotate, thereby driving the connecting claw 592 inserted into the tooth groove of the connecting tooth 591 to rotate, at this time, the connecting claw 592 is limited by the limiting column 413 and cannot rotate, thereby making the connecting tooth 591 drive the pin shaft 41 to rotate, thereby making the pin shaft 41 drive the insertion column 43 to retract to the unlocking position, completing the unlocking action.

[0069] Referring to Figure 12 The side wall of the electric control gear four 315 is fixedly installed with a connecting block 316, and the side wall of the side of the connecting block 316 away from the electric control gear four 315 is fixedly installed with a connecting shaft 317.

[0070] Referring to Figure 9The pin shaft 41 is provided with a butt joint groove 411 near one end of the electric control gear four 315, the butt joint groove 411 is provided with a sliding groove 412 on the groove bottom wall, the connecting column is inserted into the butt joint groove 411, and the connecting shaft 317 is slidingly installed in the sliding groove 412.

[0071] With reference to Figure 9 and Figure 12 The electric control gear four 315 drives the pin shaft 41 to rotate through the connecting block 316, so that the pin shaft 41 drives the connecting rod 42 to rotate, thereby realizing the positioning and unpositioning states. When the pin shaft 41 slides along the connecting shaft 317 to separate the connecting block 316 from the butt joint groove 411, the connecting shaft 317 is still located in the sliding groove 412, and the pin shaft 41 can rotate relative to the connecting shaft 317.

[0072] The working principle of the embodiment of the application is as follows: when the electric lock works normally, the electric control gear four 315 rotates under the action of the motor 311, so that the electric control gear four 315 drives the pin shaft 41 to rotate through the connecting block 316, thereby driving the pin shaft 41 to drive the connecting rod 42 to rotate, thereby driving the insertion column 43 to extend out of the lower cover 1 and complete the positioning. At this time, in the process of rotating the pin shaft 41, the pin shaft 41 drives the connecting claw 592 to slide along the connecting tooth 591, so that the emergency gear 56 does not rotate. When the insertion column 43 is retracted, the pin shaft 41 drives the connecting claw 592 to rotate, so that the connecting claw 592 is inserted into the tooth groove of the connecting tooth 591 and drives the connecting tooth 591 to rotate, thereby driving the emergency gear 56 to rotate. At this time, the emergency rack 551 on the emergency block 55 is in the initial position, and the emergency rack 551 is not engaged with the emergency gear 56, so that the emergency rack 551 does not act.

[0073] When the electric lock in the locked state fails, the emergency block 55 is pushed into the lower cover 1, so that the disengaging block 571 drives the limiting plate 58 to move, thereby separating the butt joint groove 411 from the connecting block 316, and the emergency rack 551 on the emergency block 55 is engaged with the emergency gear 56, so that the emergency rack 551 drives the emergency gear 56 to rotate, thereby driving the connecting tooth 591 to rotate. At this time, the connecting claw 592 is inserted into the tooth groove of the connecting tooth 591, so that the connecting tooth 591 can drive the connecting claw 592 to rotate, thereby driving the connecting claw 592 to drive the pin shaft 41 to rotate, thereby driving the insertion column 43 to retract into the lower cover 1, thereby unblocking the state.

[0074] The above is the preferred embodiment of the application, which does not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A charging gun positioning device for electric vehicles, comprising an upper cover (2) and a lower cover (1), the upper cover (2) is installed on the lower cover (1), characterized in that: The lower cover (1) is internally provided with an electric lock, which comprises a locking mechanism (4), a transmission assembly (31), a control assembly (32) and an emergency mechanism (5), the locking mechanism (4), the transmission assembly (31), the control assembly (32) and the emergency mechanism (5) are all installed in the lower cover (1), and the transmission assembly (31) and the control assembly (32) are connected with the locking mechanism (4), the transmission assembly (31) and the control assembly (32) are connected, the emergency mechanism (5) is connected with the locking mechanism (4), the emergency mechanism (5) is used for controlling the locking mechanism (4) to work in the case of failure of the electric lock, the transmission assembly (31) comprises a motor (311) and an electric control gear four (315), the motor (311) is installed in the lower cover (1), the electric control gear four (315) is installed in the lower cover (1), the control assembly (32) comprises an electric control switch (321), the electric control switch (321) is also electrically connected with the motor (311), the locking mechanism (4) comprises a pin shaft (41), one end of the pin shaft (41) is connected with the rotating shaft of the electric control gear four (315), and the other end is connected with the lower cover (1), the emergency mechanism (5) comprises an emergency plate (51), an emergency shaft (52), an emergency gear one (53) and an emergency gear two (54), the emergency shaft (52) is installed in the lower cover (1), the emergency plate (51) is installed at one end of the emergency shaft (52), the emergency gear one (53) is installed at the other end of the emergency shaft (52), the emergency gear two (54) is installed at the end of the pin shaft (41) away from the electric control gear four (315), and the emergency gear one (53) and the emergency gear two (54) are engaged. The side wall of the electric control gear four (315) is provided with a connecting block (316), the connecting block (316) is provided with a connecting shaft (317) away from the side wall of the electric control gear four (315), the side wall of the pin shaft (41) is provided with a butt joint groove (411), the connecting block (316) is inserted into the butt joint groove (411), the bottom wall of the butt joint groove (411) is provided with a sliding groove (412), and the connecting shaft (317) is inserted into the sliding groove (412). The emergency mechanism (5) comprises an emergency block (55), an emergency gear (56) and a separation plate (57), the emergency gear (56) is installed on one end of the pin shaft (41) away from the electric control gear four (315) through a connecting piece (59), the emergency block (55) is installed in the lower cover (1) close to the emergency gear (56), and one end of the emergency block (55) extends out of the lower cover (1), the side wall of the emergency block (55) is provided with an emergency rack (551), the emergency rack (551) is engaged with the emergency gear (56), one end of the pin shaft (41) away from the electric control gear four (315) is provided with a limiting plate (58), the separation plate (57) is installed on the side wall of the emergency block (55), the side wall of the separation plate (57) is provided with a separation block (571), the separation block (571) abuts against the side wall of the limiting plate (58), the pin shaft (41) is provided with a spring (510), one end of the spring (510) is connected with the lower cover (1), the other end of the spring (510) is connected with the side wall of the limiting plate (58), the connecting piece (59) comprises a connecting tooth (591) and a connecting claw (592), the connecting tooth (591) is installed on the inner wall of the emergency gear (56), the connecting claw (592) is installed on the side wall of the pin shaft (41) away from the electric control gear four (315), the connecting claw (592) is inserted into the tooth groove of the connecting tooth (591), the side wall of the pin shaft (41) close to the connecting claw (592) is provided with a connecting piece (593), the connecting piece (593) is connected with the connecting claw (592), and a limiting column (413) is fixedly installed on the side wall of the pin shaft (41) on the other side of the connecting claw (592). The side wall of the limiting column (413) abuts against the side wall of the connecting claw (592).

2. The charging gun positioning device for electric vehicles according to claim 1, characterized in that: The transmission assembly (31) comprises an electric control gear one (312), an electric control gear two (313) and an electric control gear three (314), the electric control gear one (312) is coaxially installed on the output shaft of the motor (311), the electric control gear two (313) is installed in the lower cover (1), and the electric control gear two (313) is engaged with the electric control gear one (312), the electric control gear three (314) is coaxially installed on the electric control gear two (313), the electric control gear four (315) is engaged with the electric control gear three (314), the electric control gear four (315) is connected with the locking mechanism (4), the control assembly (32) is installed in the lower cover (1), and the control assembly (32) is connected with the locking mechanism (4).

3. The charging gun positioning device for electric vehicles of claim 2, wherein: The control assembly (32) comprises a circuit board (322) installed in the lower cover (1), and the electric control switch (321) is installed on the circuit board (322) and connected with the locking mechanism (4).

4. The charging gun positioning device for electric vehicles of claim 3, wherein: The locking mechanism (4) comprises a pin (41), a connecting rod (42) and a plug (43), the pin (41) is connected with the electric control switch (321) and the emergency mechanism (5), the connecting rod (42) is installed on the pin (41) and the axis of the connecting rod (42) is parallel to the axis of the pin (41), the plug (43) is installed in the lower cover (1) and extends outward through the bottom wall of the lower cover (1), and the other end of the plug (43) is connected with the connecting rod (42).

5. The charging gun positioning device for electric vehicles of claim 4, wherein: The side wall of the emergency shaft (52) is provided with an emergency block one (521), the side wall of the emergency gear one (53) is provided with an emergency block two (531), and the emergency block one (521) and the emergency block two (531) are in abutment.

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