Electronic lock

Abstract

An electronic lock comprises a driving device, a transmission mechanism and an executing mechanism which are sequentially in transmission connection, the executing mechanism comprises a first lock rod, a screw rod, a second lock rod and a rack, the first lock rod and the screw rod are sequentially connected, the second lock rod and the rack are sequentially connected, the transmission mechanism comprises a duplicate gear, and a threaded hole is formed in the axis of the duplicate gear. The duplicate gear comprises a large gear and a small gear which are coaxially connected, the small gear is meshed with the rack, the large gear is in threaded connection with the screw rod, and the driving device drives the duplicate gear to rotate in a reciprocating mode so as to synchronously drive the screw rod and the rack. And the first lock rod and the second lock rod do reciprocating motion on respective preset moving paths. According to the electronic lock, only one driving device is needed to drive the two lock rods to be opened and closed at the same time, the electronic lock can lock the direct-current charging gun and the alternating-current charging gun at the same time, the manufacturing cost of the electronic lock cannot be increased, and the electronic lock is simple in structure and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, and in particular to an electronic lock. Background Art

[0002] Pure electric vehicles, a category of new energy vehicles, use batteries to supply electricity to the electric motor, driving the motor and thus propelling the vehicle. Rechargeable batteries for pure electric vehicles primarily include lead-acid batteries, nickel-cadmium batteries, nickel-metal hydride batteries, and lithium-ion batteries. These batteries power the electric vehicle. At the same time, pure electric vehicles also use batteries to store electrical energy, driving the motor and allowing the vehicle to operate normally. The batteries of pure electric vehicles are primarily charged using new energy vehicle charging guns.

[0003] In existing charging technology, when a charging station has multiple charging ports, such as both a DC charging port and an AC charging port, different charging guns can be used for charging. Current solutions all use multiple drive devices to control the locking connection between the multiple charging ports and the charging gun. Each drive device drives a corresponding locking rod, locking the charging gun to the corresponding charging station for charging. This has the disadvantages of requiring many drive device parts and high manufacturing costs.

[0004] Therefore, the field of new energy vehicle technology urgently needs an electronic lock that can synchronously control multiple locking rods. One drive device can be used to simultaneously control multiple locking rods to lock and connect charging guns, overcome the defects of the existing technology, and solve the problems of the large number of drive device parts and high manufacturing costs. Utility Model Content

[0005] The purpose of the present invention is to provide an electronic lock that overcomes the problems existing in the prior art. The present invention synchronously controls two locking rods through a driving device, thereby improving control accuracy, effectively reducing manufacturing costs, and reducing the number of sub-components.

[0006] The utility model provides an electronic lock, comprising a driving device, a transmission mechanism and an actuator connected in sequence, the actuator comprising a first locking rod and a screw connected in sequence, and a second locking rod and a rack connected in sequence; the transmission mechanism comprises a double gear, a threaded hole is provided on the axis of the double gear, the double gear comprises a large gear and a small gear connected coaxially, the small gear is meshed with the rack, and the large gear is threadedly connected to the screw, the driving device drives the double gear to rotate back and forth, and synchronously drives the screw and the rack, as well as the first locking rod and the second locking rod to reciprocate on their respective predetermined moving paths.

[0007] Preferably, the driving device includes a driving motor, an output shaft and an output gear connected in sequence, the large gear is in transmission connection with the output gear, and the driving device drives the double gear to rotate through the output gear.

[0008] Preferably, the transmission mechanism further comprises at least one gear, which is respectively meshed with and transmission-connected to the output gear and the duplex gear.

[0009] Preferably, it includes a shell, the driving device, the transmission mechanism and at least part of the actuator are arranged in the shell, the shell is provided with a first lock hole and a second lock hole, the first locking rod and the second locking rod pass through the shell through the first lock hole and the second lock hole respectively.

[0010] Preferably, a first guide groove is provided in the shell along the axis direction of the dual gear, and a first guide block is provided on the first locking rod. The first guide block is loosely fitted with the first guide groove and slides in the first guide groove, thereby preventing the first locking rod from rotating during reciprocating motion.

[0011] Preferably, a second guide groove is provided in the shell along the extension direction of the rack, and a second guide block is provided on the second locking rod. The second guide block is loosely fitted with the second guide groove and slides in the second guide groove, thereby preventing the second locking rod from rotating during reciprocating motion.

[0012] Preferably, the first locking rod and / or the second locking rod comprises a fixing rod, a connecting rod and a functional rod connected in sequence, and the axes of the fixing rod and the functional rod are parallel and offset from each other by a set distance.

[0013] Preferably, a potentiometer is fixedly provided in the housing, and a moving contact of the potentiometer is connected to the rack and moves along with it, thereby determining the position of the rack.

[0014] Preferably, an unlocking mechanism is further included, wherein the unlocking mechanism partially enters the housing and is connected to the rack. Pulling the unlocking mechanism drives the rack and rotates the double gear, thereby moving the first locking rod and the second locking rod.

[0015] Preferably, the unlocking mechanism includes a pull rope and a fixing sleeve arranged on the outer periphery of the pull rope, an unlocking hole is opened on the shell, the fixing sleeve is assembled and fixed to the unlocking hole, and one end of the pull rope enters the shell through the unlocking hole and is connected to the end of the rack.

[0016] Beneficial effects of the utility model

[0017] 1. Only one drive device is required to drive the two locking rods to extend or retract at the same time, so that the electronic lock can lock both the DC charging gun and the AC charging gun at the same time, ensuring charging safety and ease of use. This design combines the rack and pinion mechanism with the screw threaded hole structure, making the structure simple, compact and reliable, reducing the design space of the charging station and also reducing the manufacturing cost of the electronic lock.

[0018] 2. The present invention also includes an unlocking mechanism. In the prior art, when the driving device is damaged or the internal gear system, screw and other structures are completely stuck, the charging gun cannot be pulled out. This design manually pulls the unlocking mechanism, drives the rack and rotates the double gear, thereby moving the first locking rod and the second locking rod to complete the unlocking, allowing the DC charging gun and AC charging gun to be smoothly pulled out.

[0019] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0021] Figure 1 This is a structural diagram of an electronic lock of the present utility model;

[0022] Figure 2 This is a schematic diagram of the exploded structure of an electronic lock of the present utility model;

[0023] Figure 3 This is a partial structural diagram of an electronic lock of the present utility model;

[0024] Figure 4 This is a structural diagram of the connection between an electronic lock unlocking mechanism and a rack in the utility model.

[0025] The following are marked in the figure:

[0026] 10. Driving device; 11. Driving motor; 12. Output shaft; 13. Output gear; 20. Double gear; 21. Large gear; 22. Small gear; 221. Threaded hole; 23. Gear; 30. First locking rod; 31. Fixed rod; 32. Connecting rod; 33. Function rod; 40. Second locking rod; 50. Screw; 60. Rack 70. Housing; 71. First locking hole; 72. Second locking hole; 73. First guide groove; 74. Second guide groove; 75. Unlocking hole; 80. First guide block; 90. Second guide block; 100. Unlocking mechanism; 101. Fixed sleeve; 102. Pull rope; 110. Potentiometer. DETAILED DESCRIPTION

[0027] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0028] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0029] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0030] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0031] An electronic lock, such as Figure 1-Figure 4 As shown, it includes a driving device 10, a transmission mechanism and an actuator that are connected in sequence, the actuator includes a first locking rod 30 and a screw rod 50 connected in sequence, and a second locking rod 40 and a rack 60 connected in sequence; the transmission mechanism includes a double gear 20, a threaded hole 221 is provided on the axis of the double gear 20, the double gear 20 includes a large gear 21 and a small gear 22 that are coaxially connected, the small gear 22 is meshed with the rack 60, and the large gear 21 is threadedly connected to the screw rod 50. The driving device 10 drives the double gear 20 to rotate back and forth, and synchronously drives the screw rod 50 and the rack 60, as well as the first locking rod 30 and the second locking rod 40 to reciprocate on their respective predetermined moving paths.

[0032] Pure electric vehicles, a type of new energy vehicle, use batteries to supply electricity to the electric motor, driving the motor and thus propelling the vehicle. Rechargeable batteries for pure electric vehicles primarily include lead-acid batteries, nickel-cadmium batteries, nickel-metal hydride batteries, and lithium-ion batteries. These batteries power the vehicle and also store electricity in the battery to drive the motor 11, allowing the vehicle to travel normally. The batteries of pure electric vehicles are primarily charged using a new energy vehicle charging plug.

[0033] In existing charging technology, when a charging station has multiple charging ports, such as both a DC charging port and an AC charging port, different charging guns can be used for charging. Current solutions all use multiple drive devices 10 to control the locking connection between the multiple charging ports and the charging gun. Each drive device 10 drives a corresponding locking rod to lock the charging gun to the corresponding charging station for charging. This results in a large number of parts in the drive device 10 and high manufacturing costs.

[0034] Therefore, the field of new energy vehicle technology urgently needs an electronic lock that can synchronously control multiple locking rods. One drive device 10 can be used to simultaneously control multiple locking rods to lock and connect charging guns, overcome the defects of the existing technology, and solve the problems of the large number of parts of the drive device 10 and high manufacturing costs.

[0035] The electronic lock of the present invention only needs to be equipped with a driving device 10 to drive the two locking rods to extend or retract at the same time, so that the electronic lock can lock the DC charging gun and the AC charging gun at the same time, ensuring charging safety and easy use. This design combines the gear rack mechanism with the screw 50 and the threaded hole 221 structure, and the structure is simple, compact and reliable, which reduces the design space of the charging base and also reduces the manufacturing cost of the electronic lock.

[0036] In some embodiments, as Figure 4 As shown, the driving device 10 includes a driving motor 11, an output shaft 12 and an output gear 13 connected in sequence, and the large gear 21 is in transmission connection with the output gear 13. The driving device 10 drives the double gear 20 to rotate through the output gear 13.

[0037] The driving motor 11 drives the output shaft 12 to rotate. The output gear 13 rotates synchronously with the output shaft 12 and drives the large gear 21 to rotate.

[0038] In some embodiments, as Figure 4 As shown, the transmission mechanism further includes at least one gear 23, which is meshed with the output gear 13 and the double gear 20 and is in transmission connection with each other.

[0039] The multi-stage gear transmission structure of the output gear 13, the gear 23 and the double gear 20 has a large transmission ratio, a compact structure, buffering and shock absorption, and a smooth transmission, so that the reciprocating motion of the lock rod is smooth, thereby extending the service life of the electronic lock.

[0040] In some embodiments, as Figure 2 As shown, it includes a shell 70, a driving device 10, a transmission mechanism and at least part of the actuator are arranged in the shell 70, the shell 70 is provided with a first lock hole 71 and a second lock hole 72, and the first locking rod 30 and the second locking rod 40 pass through the first lock hole 71 and the second lock hole 72 respectively.

[0041] The shell 70 of the electronic lock mainly serves to protect the drive device 10, the transmission mechanism and at least part of the actuator, to decorate the appearance and provide waterproof and dustproof functions. It has a first lock hole 71 and a second lock hole 72 for the first locking rod 30 and the second locking rod 40 to pass through to lock the DC charging gun and the AC charging gun. The structure is simple and compact and easy to use.

[0042] In some embodiments, as Figure 2As shown, a first guide groove 73 is provided in the housing 70 along the axial direction of the double gear 20, and a first guide block 80 is provided on the first locking rod 30. The first guide block 80 is clearance-fitted with the first guide groove 73 and slides in the first guide groove 73, thereby preventing the first locking rod 30 from rotating during reciprocating motion.

[0043] The first guide block 80 prevents the first locking rod 30 from rotating during the reciprocating motion, thereby avoiding damage to the charging gun and the charging base during the rotation process, and ensuring that the first locking rod 30 only performs linear reciprocating motion, thereby successfully completing the locking and unlocking actions.

[0044] In some embodiments, as Figure 2 As shown, a second guide groove 74 is provided in the shell 70 along the extension direction of the rack 60, and a second guide block 90 is provided on the second locking rod 40. The second guide block 90 is clearance-fitted with the second guide groove 74 and slides in the second guide groove 74, thereby preventing the second locking rod 40 from rotating during reciprocating motion.

[0045] The second guide block 90 prevents the second locking rod 40 from rotating during reciprocating motion, thereby avoiding damage to the charging gun and the charging base during rotation, and ensuring that the second locking rod 40 only performs linear reciprocating motion, thereby successfully completing the locking and unlocking actions.

[0046] In some embodiments, as Figure 1 As shown, the first locking rod 30 and / or the second locking rod 40 includes a fixed rod 31, a connecting rod 32 and a functional rod 33 connected in sequence. The axes of the fixed rod 31 and the functional rod 33 are parallel and offset from each other by a set distance.

[0047] The axes of the fixed rod 31 and the functional rod 33 are parallel and offset from each other by a set distance, which can not only ensure that the reciprocating motion directions of the functional rod 33 and the fixed rod 31 are the same, but also ensure that the spatial arrangement position of the functional rod 33 is locked in the lock hole of the corresponding DC charging gun or AC charging gun due to the offset from each other by the set distance.

[0048] In some embodiments, as Figure 1-Figure 2 As shown, a potentiometer 110 is fixedly disposed in the housing 70 , and a moving contact of the potentiometer 110 is connected to the rack 60 and moves accordingly, thereby determining the position of the rack 60 .

[0049] The moving contact of the potentiometer 110 is connected to the rack 60 and moves with it, so the position of the rack 60 can be determined. Because the second locking rod 40 is connected to the rack 60, it can be determined whether the second locking rod 40 is in the locked position, so that the user or the charging control system can accurately judge whether the charging gun can charge the vehicle power supply connected to the charging socket to prevent people from being electrocuted.

[0050] In some embodiments, as Figure 3 and Figure 4 As shown, it also includes an unlocking mechanism 100, which partially enters the housing 70 and is connected to the rack 60. Pulling the unlocking mechanism 100 drives the rack 60 and rotates the double gear 20, thereby moving the first locking rod 30 and the second locking rod 40.

[0051] The present invention solves the problem in the prior art that the charging gun cannot be pulled out when the drive device 10 is damaged or the internal gear system, screw 50 and other structures are completely stuck. By manually pulling the unlocking mechanism 100, the rack 60 is driven and the double gear 20 is rotated, thereby moving the first locking rod 30 and the second locking rod 40 to complete the unlocking, so that the DC charging gun and the AC charging gun can be smoothly pulled out.

[0052] In some embodiments, as Figure 3-Figure 4 As shown, the unlocking mechanism 100 includes a pull rope 102 and a fixing sleeve 101 mounted on the outer periphery of the pull rope 102. An unlocking hole 75 is opened on the shell 70. The fixing sleeve 101 is assembled and fixed to the unlocking hole 75. One end of the pull rope 102 enters the shell 70 through the unlocking hole 75 and is connected to the end of the rack 60.

[0053] The present invention solves the problem in the prior art that when the motor is damaged or the internal gear system is completely stuck and the charging gun cannot be pulled out, the pull rope 102 drives the second locking rod 40 to move by pulling the rack 60 to complete manual unlocking.

[0054] Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art will appreciate that the above examples are for illustration only and are not intended to limit the scope of the present invention. Those skilled in the art will appreciate that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An electronic lock, characterized in that: It includes a driving device, a transmission mechanism and an actuator that are sequentially connected, and the actuator includes a first locking rod and a screw rod that are sequentially connected, and a second locking rod and a rack that are sequentially connected; The transmission mechanism includes a double gear, a threaded hole is provided on the axis of the double gear, the double gear includes a large gear and a small gear connected coaxially, the small gear is engaged with the rack, and the large gear is threadedly connected to the screw, and the driving device drives the double gear to rotate back and forth, thereby synchronously driving the screw and the rack, as well as the first locking rod and the second locking rod to reciprocate on their respective predetermined moving paths.

2. An electronic lock according to claim 1, characterized in that: The driving device includes a driving motor, an output shaft and an output gear connected in sequence. The large gear is in transmission connection with the output gear. The driving device drives the double gear to rotate through the output gear.

3. An electronic lock according to claim 2, characterized in that: The transmission mechanism further includes at least one gear, which is respectively meshed with the output gear and the duplex gear and is in transmission connection with each other.

4. The electronic lock according to claim 1, characterized in that: It includes a shell, the driving device, the transmission mechanism and at least part of the actuator are arranged in the shell, the shell is provided with a first lock hole and a second lock hole, the first lock rod and the second lock rod pass through the shell through the first lock hole and the second lock hole respectively.

5. An electronic lock according to claim 4, characterized in that: A first guide groove is provided in the housing along the axis direction of the double gear, and a first guide block is provided on the first locking rod. The first guide block is loosely fitted with the first guide groove and slides in the first guide groove, thereby preventing the first locking rod from rotating during reciprocating motion.

6. An electronic lock according to claim 4, characterized in that: A second guide groove is provided in the shell along the extension direction of the rack, and a second guide block is provided on the second lock rod. The second guide block is loosely matched with the second guide groove and slides in the second guide groove, thereby preventing the second lock rod from rotating during reciprocating motion.

7. The electronic lock according to claim 4, characterized in that: The first locking rod and / or the second locking rod comprises a fixing rod, a connecting rod and a functional rod connected in sequence, and the axes of the fixing rod and the functional rod are parallel and offset from each other by a set distance.

8. The electronic lock according to claim 4, characterized in that: A potentiometer is also fixedly arranged in the housing, and the moving contact of the potentiometer is connected to the rack and moves along with it, thereby determining the position of the rack.

9. The electronic lock according to claim 4, characterized in that: It also includes an unlocking mechanism, which partially enters the housing and is connected to the rack. Pulling the unlocking mechanism drives the rack and rotates the double gear, thereby moving the first locking rod and the second locking rod.

10. The electronic lock according to claim 9, characterized in that: The unlocking mechanism includes a pull rope and a fixing sleeve arranged on the outer periphery of the pull rope. An unlocking hole is provided on the shell. The fixing sleeve is assembled and fixed to the unlocking hole. One end of the pull rope enters the shell through the unlocking hole and is connected to the end of the rack.

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