CN112217054A

CN112217054A - Direct current rifle electronic lock and direct current rifle that charges

Info

Publication number: CN112217054A
Application number: CN202011141684.9A
Authority: CN
Inventors: 黄紫虹
Original assignee: Toneluck Technology Huizhou Co ltd
Current assignee: Toneluck Technology Huizhou Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-01-12

Abstract

The invention discloses an electronic lock of a direct current charging gun and the direct current charging gun. The direct current charging gun electronic lock adopts electromechanical control to carry out locking and unlocking control, wherein the pushing out and retracting of the locking push rod are realized by driving of the driving motor, and the locking and unlocking speed and state are stable and controllable; and, still be provided with detection switch in this direct current rifle electronic lock that charges, the state that targets in place is locked and unblanked of response locking push rod that can be accurate to can realize accurate feedback control. In addition, the electronic lock of the direct current charging gun is also provided with a manual reset rocker arm, and when the locking push rod breaks down after being pushed out, manual reset can be conveniently, quickly, easily and reliably carried out. The direct current charging gun comprises the direct current charging gun electronic lock, has good automatic locking and unlocking functions, is stable and controllable in locking and unlocking in the process of charging an electric automobile, can be easily and reliably manually unlocked in case of failure, and is high in safety performance.

Description

Direct current rifle electronic lock and direct current rifle that charges

Technical Field

The invention relates to the technical field of automobile charging equipment, in particular to an electronic lock of a direct current charging gun and the direct current charging gun.

Background

With the development of automobile technology and the change of energy structure, electric automobiles are gradually becoming a new trend. In the popularization of electric vehicles, the charging pile is a gas station and is used for conveniently supplementing energy for the electric vehicles at any time and any place. Have the rifle that charges like the nozzle in charging pile, can directly peg graft with the interface that charges on the car and charge when charging.

In the charging process, for preventing that rifle and charging seat from taking place to break away from that charges, the inside of rifle that charges can be provided with locking means, carries out interim locking with the interface that charges on rifle and the charging seat in the charging process, makes the rifle that charges and the interface that charges keep interim relatively stable to be connected to guarantee charging process's safety. And after the charging is finished, unlocking can be carried out, and the charging gun is taken out from the charging interface.

The direct current charging gun can directly charge direct current in the charging process, does not need to carry out current conversion, and is convenient and fast. However, the locking structure of the current direct current charging gun generally adopts an electromagnetic principle to lock and unlock, has high requirement on voltage precision, and is difficult to realize precise control; and the electromagnetic locking and unlocking states are unstable, and the feedback signal cannot be triggered easily due to too high speed. Further, as the dc charging gun electronic lock device disclosed in patent CN209687073U, although the electronic lock principle is also adopted in the locking structure of the conventional dc charging gun, these electronic locks are difficult to manually reset after locking, and are troublesome to unlock and easily damage the charging gun lock device when a failure occurs.

Disclosure of Invention

The locking structure of the direct current charging gun in the prior art is low in feedback monitoring accuracy, unstable in locking and unlocking states and difficult to manually reset. The invention provides a direct current charging gun electronic lock which is locked and unlocked by electromechanical control, has stable locking and unlocking states and can realize accurate control.

The invention also aims to provide a direct current charging gun, which can realize stable and accurately controlled locking and unlocking based on the direct current charging gun electronic lock, and can carry out convenient, quick, easy and reliable manual unlocking in case of failure.

The purpose of the invention is realized by the following technical scheme.

A direct current charging gun electronic lock comprises a locking push rod and a driving motor;

one end of the locking push rod is a locking end, and a locking head is arranged on the locking end; the other end of the locking push rod is provided with a rack, and the driving motor is in meshed transmission connection with the rack through a gear set and can drive the locking end of the locking push rod to be pushed out or retracted;

a manual reset rocker arm is also arranged; when the locking push rod fails to retract after being pushed out, the manual reset rocker arm is manually rotated to drive the locking push rod to retract and reset.

In a preferred embodiment, the gear set includes a drive gear and a driven gear; the output end of the driving motor is in meshed transmission connection with the driving gear through a worm; the driving gear is in transmission connection with the driven gear, and a transmission virtual position is arranged between the driving gear and the driven gear; the driven gear is in meshed transmission connection with the rack.

In a more preferred embodiment, the driven gear and the driving gear are in half-clutch transmission connection. The driving gear is provided with a driving transmission convex part protruding inwards towards the axis, the periphery of the driven gear is provided with a transmission clamping part in clamping transmission with the driving transmission convex part in the circumferential direction, and when the driving gear rotates relative to the driven gear, and the driving transmission convex part is not in contact with the transmission clamping part, a vacant transmission virtual position is arranged between the driving transmission convex part and the transmission clamping part.

In a more preferred embodiment, the engaging teeth on the driven gear, which engage with the rack, are missing teeth.

In a further preferred embodiment, the missing teeth are provided with half teeth I, and the rack is provided with half teeth II corresponding to the half teeth I.

In a more preferred embodiment, the gear set and the drive motor are disposed on an intermediate housing; the middle shell is provided with a cavity for embedding the driving motor and a gear rotating shaft for installing the driving gear, the driven gear and the worm.

In a preferred embodiment, a push rod return spring is sleeved on the locking push rod, and when the locking push rod is pushed out, the push rod return spring is compressed; and after the external force pushing out the locking push rod is released, the compressed push rod reset spring releases elastic potential energy and can drive the locking push rod to retract and reset.

In a more preferred embodiment, the manual reset rocker arm is provided with a contact piece; the locking head is provided with a clamping table corresponding to the rotation direction of the contact piece, when the contact piece rotates along the direction of pushing out the locking push rod to be contacted with the clamping table on the locking head, the clamping table on the locking head can block the rotation of the contact piece, and when the contact piece continues to rotate, the locking head can be pushed out continuously along the pushing out direction;

when the locking push rod fails to retract after being pushed out, the manual reset rocker arm is rotated to drive the locking push rod to be continuously pushed out by the contact piece and further compress the push rod reset spring, and after the external force action on the manual reset rocker arm is released, the compressed push rod reset spring can drive the locking push rod to retract and reset.

In a preferred embodiment, the locking head of the locking push rod is provided with a positioning barb; the manual reset rocker arm is provided with a limiting barb corresponding to the positioning barb; after the locking push rod is pushed out in place, the positioning barbs are clamped with the limiting barbs, and the stroke of the locking push rod is limited.

In a preferred embodiment, a manual reset torsion spring is sleeved on the manual reset rocker arm, and the manual reset rocker arm can be elastically driven to reset after rotation.

In a more preferred embodiment, one end of the manual reset torsion spring is connected to act on the manual reset rocker arm, and the other end of the manual reset torsion spring is connected to act on a fixed shell arranged outside the electronic lock.

In a preferred embodiment, the manual reset rocker arm is provided with a manual transmission connecting part which comprises a straight groove or a hexagonal boss.

In a preferred embodiment, a microswitch I is further provided for detecting the push-out or retraction of the locking push rod.

In a more preferred embodiment, the locking push rod is provided with a positioning groove and a positioning bulge; when the locking push rod retracts to the right position, the in-position groove corresponds to the microswitch I; when the locking push rod is pushed out to the right, the right-in protrusion corresponds to and abuts against the microswitch I to trigger the microswitch I; there is a transition slope between the in-place groove and the in-place protrusion.

A direct current charging gun comprises a charging gun button, a charging gun claw and a charging gun electronic lock;

the charging gun button is arranged on the charging gun shell in a pressing and telescopic manner through a button reset spring; the middle part of the hook claw of the charging gun is rotatably arranged on the shell of the charging gun through a rotating shaft; the charging gun button corresponds to one end of the charging gun hook claw and can be pressed to drive the charging gun hook claw to tilt; the other end of the charging gun hook claw is provided with a clamping reverse hook, and the clamping reverse hook is positioned in front of the front end of the charging gun shell; the charging gun electronic lock is based on the direct current charging gun electronic lock of any one of the above items;

after the locking push rod is pushed out, the locking head of the locking push rod corresponds to the charging gun button and can push the charging gun button which is pressed down tightly, and the charging gun button cannot be pressed.

In a preferred embodiment, the charging gun button has a press locking positioning post with an extended protrusion on an inner end side; after the locking push rod is pushed out, the locking head of the locking push rod corresponds to the pressing locking positioning column of the charging gun button, and the pressing locking positioning column which is pressed down can be tightly pushed.

In a more preferred embodiment, the charge gun electronic lock is disposed within an electronic lock housing; a locking positioning groove capable of accommodating the pressing locking positioning column to extend into is formed in the electronic lock shell; after the locking push rod is pushed out, the locking head extends to be located in the locking positioning groove, and the locking head can be prevented from extending into the locking positioning column.

In a preferred embodiment, a microswitch II corresponding to the charging gun hook claw is arranged between the rotating shaft and the charging gun button; press the rifle button of charging and order about the rifle that charges colludes the claw and warp the in-process, warp the rifle that charges colludes the claw and can trigger micro-gap switch II.

Compared with the prior art, the invention has the following advantages and beneficial effects:

the direct current charging gun electronic lock adopts electromechanical control to carry out locking and unlocking control, wherein the pushing out and retracting of the locking push rod are realized by driving of the driving motor, and the locking and unlocking speed and state are stable and controllable; and, still be provided with detection switch in this direct current rifle electronic lock that charges, the state that targets in place is locked and unblanked of response locking push rod that can be accurate to can realize accurate feedback control.

The electronic lock of the direct current charging gun is also provided with the manual reset rocker arm, and the manual reset is convenient, quick, easy and reliable. The locking push rod is sleeved with a push rod return spring, and the push rod return spring can be compressed and can elastically drive the locking push rod to return in the process of pushing out the locking push rod; and the manual reset rocker arm is provided with a contact piece, when the locking push rod fails after being pushed out and can not retract, the manual reset rocker arm is manually rotated, the contact piece on the manual reset rocker arm pushes the locking push rod to continue to be pushed out, so that the compression amount of the push rod reset spring is increased, and after the external force action on the manual reset rocker arm is released, the locking push rod can retract and reset under the elastic driving action of the push rod reset spring. Moreover, the driving motor is in transmission connection with the locking push rod through the gear set, the driven gear of the gear set, which is directly in meshing connection with the gear of the locking push rod, is provided with missing teeth, and the driven gear is in half-clutch connection with the driving gear, so that in the process of manually resetting and continuously pushing out the locking push rod, the rack on the locking push rod and the driven gear as well as the driven gear and the driving gear are in transmission separation states, so that the locking push rod does not have transmission action on the driving gear in the retraction and resetting process, the driven gear, the driving gear, the worm and the driving motor do not need to be driven to rotate in the retraction and resetting moving process, that is, the counter thrust caused by the driven gear, the driving gear, the worm and the driving motor does not need to be overcome, the resetting work is smaller, and particularly, when the device fails due to, the convenience of locking push rod reset is improved to can effectively reduce the damage to inside spare part of electronic lock.

In addition, the manual reset rocker arm is further provided with a limiting barb, and under a normal working state, the limiting barb can limit the pushing-out stroke of the locking thrust rod, so that the locking thrust rod is prevented from being pushed out in a transition mode. And after the manual reset rocker arm rotates in a limiting mode or in a manual reset mode, the manual reset rocker arm can be reset through the elastic driving of a manual reset torsion spring.

The direct current charging gun comprises the direct current charging gun electronic lock, has good automatic locking and unlocking functions, is stable and controllable in locking and unlocking in the process of charging an electric automobile, can be easily and reliably manually unlocked in case of failure, and is high in safety performance.

Drawings

FIG. 1 is a schematic diagram of an overall structure of an electronic lock of a DC charging gun according to an embodiment of the present invention;

FIGS. 2a and 2b are schematic views of an exemplary embodiment of a partially exploded structure of an electronic lock of a DC charging gun of the present invention along different viewing angles;

FIG. 3 is a schematic diagram of an overall exploded structure of an electronic lock of a DC charging gun according to an embodiment of the present invention

FIG. 4 is a schematic structural view of the middle housing;

fig. 5a and 5b are schematic structural diagrams of the locking push rod along different viewing angles respectively;

FIG. 6 is a schematic view of the combination of the driving gear and the driven gear;

FIG. 7 is a schematic view of the assembled relationship of the driving gear and the driven gear;

FIG. 8 is a schematic structural view of a manual reset rocker arm;

FIG. 9 is a schematic view showing an assembly relationship between the locking push rod and the manual reset rocker arm when the locking push rod is pushed out continuously by manual reset;

FIG. 10 is a schematic view of the assembly of the locking push rod with the manual reset rocker arm when pushed out of position;

11a and 11b are respectively schematic structural diagrams of the microswitch I for detecting the push-out and retraction of the locking push rod in place;

FIG. 12a is a schematic view of the locking pushrod in its retracted state in assembled relationship with the gear set and the manual reset rocker arm;

FIG. 12b is a schematic view of the locking pushrod in its push-out position in relation to the gear set and the manual reset rocker arm;

FIG. 12c is a schematic view of the locking pushrod during manual reset and the assembled relationship of the gear set and the manual reset rocker arm;

FIG. 13 is a schematic diagram of a DC charging gun according to an embodiment of the present invention in a locked state;

FIG. 14 is a schematic structural view of a DC charging gun of the present invention in an unlocked state in an exemplary embodiment;

the attached drawings are marked as follows: 1-electronic lock shell, 101-main shell, 1010-locking positioning groove, 102-auxiliary shell, 2-middle shell, 201-motor cavity, 202-gear rotating shaft, 203-microswitch receiving groove, 3-driving motor, 4-locking push rod, 401-locking head, 402-rack, 4021-half-tooth II, 403-connecting part, 404-positioning barb, 405-positioning groove, 406-positioning projection, 407-transition slope, 5-gear set, 501-driving gear, 5010-driving transmission projection, 502-driven gear, 5020-missing tooth, 5021-half-tooth I, 5022-transmission clamping part, 503-worm, 504-transmission virtual position, 6-manual reset rocker arm, 601-rocker arm body, 602-limit barb, 603-contact, 604-straight groove, 7-push rod return spring, 8-manual return torsion spring, 9-microswitch I, 100-electronic lock, 200-charging gun hook claw, 2001-clamping barb, 300-charging gun button, 3001-press lock positioning column, 3002-press contact, 400-charging gun shell, 500-microswitch II, 600-button return spring, 700-rotating shaft, 800-charging seat.

Detailed Description

The technical solutions of the present invention are further described in detail below with reference to specific examples and drawings, but the scope and implementation of the present invention are not limited thereto. In the description of the specific embodiments, it should be noted that the terms "upper", "lower", "front", "back", and the like refer to the orientation or position relationship shown in the drawings or the orientation or position relationship where the product of the invention is used, and the terms "i", "ii", and the like are used for distinguishing and descriptive purposes only and are not intended to indicate or imply that the structure or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and are not to be construed as limiting the invention or to imply relative importance.

Example 1

Referring to fig. 1 to 3, the dc charging gun electronic lock of the present embodiment includes a locking push rod 4, a driving motor 3, and an electronic lock housing 1 for accommodating components of the electronic lock.

The electronic lock casing 1 is composed of a main casing 101 and an auxiliary casing 102 which are matched with each other, and all parts of the electronic lock including the locking push rod 4 and the driving motor 3 are accommodated in a cavity formed by matching the main casing 101 and the auxiliary casing 102. In this embodiment, an intermediate housing 2 for accommodating the driving motor 3 is further disposed inside the electronic lock housing 1, as shown in fig. 4, an accommodating structure including a motor cavity 201 is integrally formed on the intermediate housing 2 according to the structure of the parts to be accommodated, the driving motor 3 is accommodated in the motor cavity 201 of the intermediate housing 2 during assembly, and then the parts including the driving motor 3 are assembled together with the intermediate housing 2 in a housing where the main housing 101 and the sub-housing 102 are assembled.

The output end of the driving motor 3 is in transmission connection with the locking push rod 4, and the locking push rod 4 can be driven to reciprocate. In this embodiment, the main housing 101 of the electronic lock housing 1 is provided with a locking positioning groove 1010; one end of the locking push rod 4 is a locking end, a locking head 401 is arranged on the locking end, and the upper surface of the locking head 401 is a plane capable of achieving a jacking effect. On the direct current charging gun, a charging gun key can be pressed and positioned to extend into the locking positioning groove 1010, so that unlocking and gun taking are carried out; when the locking operation is performed, the driving motor 3 can drive the locking head 401 of the locking push rod 4 to move and push out to the locking positioning groove 1010 so as to block the locking positioning groove 1010, and can push down the downward-pressed charging gun button, so that the charging gun button cannot be pressed and positioned to extend into the locking positioning groove 1010, and further cannot be unlocked to take out the gun. When the gun needs to be taken, the driving motor 3 can drive the locking thrust rod 4 to retract and reset, the locking head 401 leaves from the locking positioning groove 1010 and retracts into the electronic lock shell 1, and the charging gun key can be pressed and positioned to extend into the locking positioning groove 1010 to take the gun.

In this embodiment, the driving motor 3 is in meshed transmission with the rack 402 through a gear set 5, and can drive the locking end of the locking push rod 4 to be pushed out or retracted. Specifically, as shown in fig. 5a and 5b, one end of the locking push rod 4 is a locking end, the other end thereof has a rack 402, and a connecting portion 403 is disposed between the two ends. The output end of the driving motor 3 is in meshing transmission connection with the rack 402 of the locking push rod 4 through the gear set 5, and drives the rack 402 of the locking push rod 4 to move through meshing transmission so as to drive the locking end to move, thereby driving the locking head 401 to be pushed out and retracted.

Optionally, the gear set 5 includes a driving gear 501 and a driven gear 502. Wherein, the output end of the driving motor 3 is provided with a secondary gear, the secondary gear is in meshing transmission connection with the driving gear 501 through the worm 503, the driving gear 501 is in transmission connection with the driven gear 502, and the driven gear 502 is in meshing transmission connection with the rack 402.

In this embodiment, the driving motor 3 and the gear set 5 are both arranged on the middle shell 2, the driving motor 3 is arranged in the motor cavity 201, and the output end penetrates out of the motor cavity 201 and is sleeved with the secondary gear; a gear rotating shaft 202 of the assembly gear is arranged on the middle shell 2, and a worm 503 is sleeved on the gear rotating shaft 202 and is in transmission connection with a secondary gear on the output end of the driving motor 3.

Referring to fig. 6 and 7, the driving gear 501 has a driving protrusion 5010 protruding inward toward the axis, the driven gear 502 has a driving engaging portion 5022 engaging with the driving protrusion 5010 in the circumferential direction, and the driving gear 501 and the driven gear 502 are coaxially sleeved on the other gear shaft 202. When the driving gear 501 rotates relative to the driven gear 502 and the driving transmission convex part 5010 is not in contact with the transmission clamping part 5022, a transmission virtual position 504 is left between the driving transmission convex part 5010 and the transmission clamping part 5022, and no transmission occurs between the driving gear 501 and the driven gear 502; when the driving gear 501 rotates to the position where the driving protrusion 5010 contacts the transmission latch portion 5022, the driving gear 501 drives the driven gear 502 to rotate through the latch-fit transmission of the driving protrusion 5010 and the transmission latch portion 5022. Thus, the driving gear 501 and the driven gear 502 form a semi-clutch transmission connection.

In the dc charging gun electronic lock of the present embodiment, a manual reset rocker arm 6 is further provided. When taking place the trouble including driving motor 3 or gear train 5 and can not retract after locking push rod 4 releases, manual rotation manual reset rocking arm 6 can order about locking push rod 4 retraction to reset to avoid locking push rod 4 to push out the back and can't reset and then lead to unable rifle operation of getting because of the trouble, perhaps because of unable rifle of getting needs to be dismantled the rifle that charges and get the rifle and lead to the fragile problem of rifle that charges.

In an alternative embodiment, the connecting portion 403 of the locking push rod 4 is sleeved with a push rod return spring 7. The end of the push rod return spring 7 close to the locking head 401 is connected to the inner wall of the electronic lock housing 1 or to the fixing surface of the intermediate housing 2, in this embodiment to the intermediate housing 2, and the end of the push rod return spring 7 remote from the locking head 401 is connected to the locking push rod 4. When the locking push rod 4 is pushed out, the push rod return spring 7 is compressed, and after the external force pushing out the locking push rod 4 is released, the compressed push rod return spring 7 can drive the locking push rod 4 to retract and reset.

Referring to fig. 8, the manual reset rocker 6 comprises a rocker body 601, a contact piece 603 is arranged on the rocker body 601 of the manual reset rocker 6, a locking head 401 is provided with a table corresponding to the contact piece 603 in the rotation direction, when the contact piece 603 rotates in the direction of pushing out the locking push rod 4 to be contacted with the table on the locking head 401, the table on the locking head 401 can block the rotation of the contact piece 603, and when the contact piece 603 continues to rotate, the locking head 401 can be pushed out continuously in the pushing out direction.

In this way, when the locking push rod 4 fails to retract after being pushed out, in the process of rotating the manual reset rocker arm 6 in the direction of pushing out the locking push rod 4, as shown in fig. 9, the contact piece 603 contacts with the locking head 401 of the locking push rod 4 and pushes the locking push rod 4 to continue to be pushed out, thereby further compressing the push rod reset spring 7. When the external force on the manual reset rocker arm 6 is released, the compressed push rod reset spring 7 can drive the locking push rod 4 to retract and reset.

And, still overlap and be equipped with manual reset torsion spring 8 on manual reset rocking arm 6, but the manual reset rocking arm 6 after the elasticity drives the rotation resets. Specifically, one end of the manual reset torsion spring 8 is connected to act on the manual reset rocker arm 6, and the other end of the manual reset torsion spring 8 is connected to act on a fixing surface including the inner wall of the electronic lock housing 1 or the middle housing 2, in this embodiment, the manual reset torsion spring 8 is connected to act on the middle housing 2, when the manual reset rocker arm 6 rotates under the action of external force, the manual reset torsion spring 8 synchronously rotates and accumulates elastic potential energy, and after the action of external force is released, the manual reset torsion spring 8 releases the elastic potential energy and drives the manual reset rocker arm 6 to rotate to recover the original position.

Optionally, one end of the rocker arm body 601 of the manual reset rocker arm 6 is exposed outside the electronic lock housing 1, and a manual transmission connecting portion is disposed on the exposed portion of the manual reset rocker arm 6, the manual transmission connecting portion includes a straight groove or a hexagonal boss, and the manual transmission connecting portion is a straight groove 604 in this embodiment. When manual reset is needed, the manual reset rocker arm 6 can be manually assisted to rotate by a handle and the like with a structure matched with the manual transmission connecting part, and manual reset can be conveniently and quickly completed.

Further, in the present embodiment, the meshing teeth on the driven gear 502 are missing teeth 5020, and the driving gear 501 and the driven gear 502 are in half-clutch transmission connection. In the process of manually resetting and continuously pushing out the locking push rod 4, the rack 402 on the locking push rod 4 can be disengaged from the meshing part of the missing tooth 5020 on the driven gear 502, no transmission relation exists between the rack 402 of the locking push rod 4 and the driven gear 502, the driving gear 501 does not need to be driven to rotate, the continuous pushing-out process of the locking push rod 4 does not need to drive the driven gear 502 to rotate, the reverse thrust of the driving gear 501, the worm 503 and the driving motor 3 does not need to be overcome, the manual resetting work is small, especially when the device failure fault caused by the jamming of the gear set 5 or the driving motor 3 occurs, the manual resetting is still easy and reliable, the resetting convenience of the locking push rod 4 is improved, and the damage to internal parts of the electronic lock can be effectively reduced.

In addition, in the embodiment, a half tooth i 5021 is arranged on the missing tooth 5020, and a half tooth ii 4021 corresponding to the half tooth i 5021 is arranged on the rack 402. In the process that the missing tooth 5020 of the driven gear 502 is in meshed transmission with the rack 402 on the locking push rod 4 and drives the locking push rod 4 to move, the half tooth I5021 and the half tooth II 4021 are in meshed interaction, the phenomena of tooth clamping, tooth jacking and the like can be effectively reduced, and the meshing stability and the meshing safety of the missing tooth 5020 and the rack 402 are effectively improved.

In the normal locking and pushing-out process of the locking push rod 4, in order to avoid the transitional pushing-out of the locking push rod 4, the rack 402 and the missing tooth 5020 of the driven gear 502 are separated, the driving motor 3 and the gear set 5 are matched to normally drive the locking push rod 4 to retract and reset, and a limiting structure is further arranged to limit the pushing-out stroke of the locking push rod 4. In this embodiment, the locking head 401 of the locking push rod 4 is provided with a positioning barb 404, and the manual reset rocker arm 6 is provided with a limiting barb 602 corresponding to the positioning barb 404. In normal operation, as shown in fig. 10, during the pushing-out process of the locking head 401 of the locking push rod 4, the limiting barb 602 will contact and snap-fit with the positioning barb 404, so as to limit the pushing-out stroke of the locking thrust rod 4.

In addition, in the electronic lock of the direct current charging gun of the embodiment, a microswitch i 9 is further provided for detecting the condition that the locking push rod 4 is pushed out to the right position or retracted to the right position.

Optionally, the locking push rod 4, in this embodiment, particularly at the end of the rack 402 in the pushing direction, has a positioning groove 405 and a positioning protrusion 406. Micro-gap switch I9 is fixed to be set up on middle casing 2, and micro-gap switch I9's terminal is connected on the both ends of circuit. As shown in fig. 11a and 11b, when the locking push rod 4 retracts to the right, the right-position groove 405 corresponds to the micro switch i 9, and the micro switch i 9 is turned off; when the locking push rod 4 is pushed out to the right, the in-place bulge 406 corresponds to and abuts against the micro switch I9, so that the micro switch I9 is closed, and the micro switch I9 is triggered; and a transition ramp 407 between the in-place indentation 405 and the in-place protrusion 406. Therefore, when the locking push rod 4 is pushed out to the place, the microswitch I9 is closed and sends out a corresponding electric signal, and the pushing-out in-place condition of the locking push rod 4 is detected; when the locking push rod 4 retracts to the right position, the microswitch I9 is switched off and sends out a corresponding electric signal, and the retraction to the right position condition of the locking push rod 4 is detected.

Referring to fig. 12a to 12c, when the dc charging gun electronic lock of the present embodiment works, in the process of pushing out and retracting the locking push rod 4, the driving motor 3 and the gear set 5 drive the locking thrust rod 4 to perform a pushing out or retracting movement, and when the locking push rod is pushed out to the place, the positioning barb 404 limits the pushing out stroke of the locking thrust rod 4; when the locking push rod 4 breaks down after being pushed out and needs to be manually reset, the locking push rod 4 is continuously pushed out under the driving of the manual reset rocker arm 6, the rack 402 of the locking push rod 4 is disengaged from the missing tooth 5020 on the driven gear 502, and after the external force action on the manual reset rocker arm 6 is released, the locking push rod 4 is pushed under the elastic action of the push rod reset spring 7 to be retracted and reset.

Example 2

The dc charging gun of this embodiment is based on the dc charging gun electronic lock of embodiment 1.

Referring to fig. 13 and 14, the dc charging gun includes a charging gun button 300, a charging gun catch 200, and a charging gun electronic lock 100. Wherein, the charging gun button 300 is arranged on the charging gun shell 400 and can be pressed up and down; and a button return spring 600 is provided between the charging gun button 300 and the interior of the charging gun housing 400, the button return spring 600 is compressed and continues to have elastic potential energy in the process of pressing the charging gun button 300 downward, the pressing external force is released, and the charging gun button 300 can be reset upward under the elastic action of the button return spring 600. The front end of the charging gun hook 200 is located in front of the front end of the charging gun housing 400, the middle part of the charging gun hook 200 is rotatably arranged on the charging gun housing 400 through a rotating shaft 700, and the charging gun button 300 corresponds to the rear end of the charging gun hook 200 and can be pressed to drive the front end of the charging gun hook 200 to tilt. Further, a locking barb 2001 is provided at the tip of the charging gun claw 200.

When the dc charging gun is hung on the charging stand 800, the reverse latch 2001 of the hook 200 of the charging gun, which is located in front of the front end of the charging gun case 400, is latched and hooked with the groove on the charging stand 800, so that the dc charging gun is stably hung on the charging stand 800. When the direct current charging gun is taken out, the key 300 of the charging gun is pressed downwards, so that the clamping reverse hook 2001 at the front end of the hook claw 200 of the charging gun is separated from the groove on the charging seat 800, and the direct current charging gun can be taken down smoothly.

The charging gun electronic lock 100 of the present embodiment is a dc charging gun electronic lock based on the description of embodiment 1. In the present embodiment, the charging gun electronic lock 100 is provided inside the electronic lock case 1; and the locking positioning groove 1010 on the electronic lock housing 1 corresponds to the charging gun button 300.

Alternatively, the charging gun key 300 has a press locking positioning post 3001 extending convex on the inner end side. Moreover, the locking positioning column 3001 is pressed to correspond to the locking positioning groove 1010, and the locking positioning column 3001 can be pressed to be oriented to extend into the locking positioning groove 1010 when the charging gun button 300 is pressed.

In addition, a convex pressing contact 3002 is further provided on the inner end side of the charging gun button 300, the pressing contact 3002 contacts with the rear end of the charging gun catch 200, and the rear end of the charging gun catch 200 can be directly touched and pressed downward when the charging gun button 300 is pressed, so that the front end of the charging gun catch 200 is tilted.

The direct current rifle that charges of this embodiment can realize the stable connection of the interface that charges with the charging seat among the charging process through the locking effect of the rifle electronic lock 100 that charges, and can conveniently take off this direct current rifle that charges through the unblock after accomplishing charging. In the specific working process, after the locking push rod 4 is pushed out, the locking head 401 of the locking push rod 4 extends into the locking positioning groove 1010 and corresponds to the pressing locking positioning column 3001 of the charging gun button 300, the locking head 401 can tightly push the charging gun button 300 pressed downwards, so that the charging gun button 300 cannot be pressed, the front end of the charging gun hook claw 200 cannot be tilted, the clamping reverse hook 2001 at the front end of the charging gun hook claw 200 and a groove on the charging seat 800 are kept in a clamping locking state, and the direct-current charging gun cannot be taken down; and after the locking push rod 4 retracts, the locking positioning groove 1010 is not blocked, when the charging gun button 300 is pressed downwards, the locking positioning column 3001 can extend into the locking positioning groove 1010 by pressing, and the rear end of the charging gun hook claw 200 is pressed by touching the pressing contact 3002 in the process of pressing the charging gun button 300, so that the front end of the charging gun hook claw 200 tilts, the clamping inverted hook 2001 at the front end of the charging gun hook claw 200 is separated from the groove on the charging seat 800, and the direct-current charging gun is separated from the charging seat 800 in a clamping manner, so that the direct-current charging gun can be smoothly taken down.

In addition, in the preferred embodiment, a micro switch ii 500 corresponding to the charging gun hook 200 is disposed between the rotating shaft 700 and the charging gun button 300. Wherein, have the micro-gap switch holding tank 203 that is used for holding to place micro-gap switch II 500 on middle casing 2, micro-gap switch II 500 is placed in micro-gap switch holding tank 203 and is located the position department between pivot 700 and the rifle button 300 that charges, and with charge the rifle and collude claw 200 and correspond. When the charging gun button 300 is pressed downwards to enable the front end of the charging gun hook claw 200 to tilt, the rear end of the charging gun hook claw 200 swings downwards and triggers the microswitch II 500, and the microswitch II 500 sends out a corresponding signal to detect the gun taking action condition.

The above embodiments are merely preferred embodiments of the present invention, and the technical solutions of the present invention are described in further detail, but the scope and implementation of the present invention are not limited thereto, and any changes, combinations, deletions, substitutions or modifications that do not depart from the spirit and principle of the present invention are included in the scope of the present invention.

Claims

1. A direct current charging gun electronic lock is characterized by comprising a locking push rod and a driving motor;

a push rod return spring is sleeved on the locking push rod, and is compressed when the locking push rod is pushed out; after the external force pushing out the locking push rod is released, the compressed push rod return spring can drive the locking push rod to retract and reset;

a manual reset rocker arm is also arranged; when the locking push rod fails to retract after being pushed out, the manual reset rocker arm is manually rotated to drive the locking push rod to be continuously pushed out, and after the external force action on the manual reset rocker arm is released, the compressed push rod reset spring can drive the locking push rod to retract and reset.

2. The electronic lock of claim 1, wherein the gear set comprises a driving gear and a driven gear; the output end of the driving motor is in meshed transmission connection with the driving gear through a worm; the driving gear is coaxially connected with the driven gear in a transmission way, and a transmission virtual position is arranged between the driving gear and the driven gear; the driven gear is in meshed transmission connection with the rack.

3. The electronic lock of the DC charging gun according to claim 2, wherein the engaging teeth of the driven gear engaged with the rack are missing teeth; and the missing teeth are provided with half teeth I, and the rack is provided with half teeth II corresponding to the half teeth I.

4. The dc charging gun electronic lock of claim 1, wherein the manual reset rocker arm has a contact piece; when the contact piece rotates along the direction of pushing out the locking push rod to be in contact with the locking head, the locking head can block the rotation of the contact piece, and when the contact piece continues to rotate, the locking head can be pushed out continuously along the pushing-out direction.

5. The electronic lock of claim 1, wherein the locking head of the locking rod has a positioning barb; the manual reset rocker arm is provided with a limiting barb corresponding to the positioning barb; after the locking push rod is pushed out in place, the positioning barbs are clamped with the limiting barbs, and the stroke of the locking push rod is limited.

6. The direct current charging gun electronic lock according to claim 1, wherein a manual reset torsion spring is sleeved on the manual reset rocker arm, and the manual reset rocker arm can be elastically driven to reset after rotation.

7. The electronic lock of claim 1, wherein the manual reset rocker arm is provided with a manual transmission connecting part, which comprises a straight groove or a hexagonal boss.

8. The direct current charging gun electronic lock according to any one of claims 1 to 7, characterized by further comprising a micro switch I for detecting the pushing out or retracting in place of the locking push rod;

the locking push rod is provided with an in-place groove and an in-place bulge; when the locking push rod retracts to the right position, the in-position groove corresponds to the microswitch I; when the locking push rod is pushed out to the right, the right-in protrusion corresponds to and abuts against the microswitch I to trigger the microswitch I; there is a transition slope between the in-place groove and the in-place protrusion.

9. A direct current charging gun is characterized by comprising a charging gun key, a charging gun claw and a charging gun electronic lock;

the charging gun button is arranged on the charging gun shell in a pressing and telescopic manner through a button reset spring; the middle part of the hook claw of the charging gun is rotatably arranged on the shell of the charging gun through a rotating shaft; the charging gun button corresponds to one end of the charging gun hook claw and can be pressed to drive the tilting of the charging gun hook claw; the other end of the charging gun hook claw is provided with a clamping reverse hook, and the clamping reverse hook is positioned in front of the front end of the charging gun shell; the charging gun electronic lock is based on the direct current charging gun electronic lock of any one of claims 1 to 8;

10. The direct current charging gun according to claim 9, wherein said charging gun button has a press-locking positioning post of an extended projection on an inner end side; after the locking push rod is pushed out, the locking head of the locking push rod corresponds to the pressing locking positioning column of the charging gun button, and the pressing locking positioning column which is pressed down can be tightly pushed.

11. The dc charging gun of claim 10, wherein the charging gun electronic lock is disposed within an electronic lock housing; a locking positioning groove capable of accommodating the pressing locking positioning column to extend into is formed in the electronic lock shell; after the locking push rod is pushed out, the locking head extends to be located in the locking positioning groove, and the locking head can be prevented from extending into the locking positioning column.

12. The direct current charging gun according to any one of claims 9 to 11, wherein a micro switch ii corresponding to the hook claw of the charging gun is arranged between the rotating shaft and the charging gun button; press the rifle button of charging and order about the rifle that charges colludes the claw and warp the in-process, warp the rifle that charges colludes the claw and can trigger micro-gap switch II.