Electronic lock structure of charging gun

Abstract

The utility model discloses a charging gun electronic lock structure which comprises a shell, a driving motor, a locking piece and a microswitch, the driving motor, the locking piece and the microswitch are installed in the shell, and a gear is arranged at the output end of the driving motor. The locking piece is longitudinally arranged in the shell, a rack meshed with the gear is arranged on one side of the locking piece, and a spring bolt is arranged at one end of the locking piece. When the driving motor drives the gear to rotate, the gear can drive the rack to longitudinally move in the shell, and therefore the spring bolt stretches out of or retracts into the shell. According to the electronic lock structure of the charging gun, the locking piece is longitudinally installed on the shell, the rack and the gear can be meshed in the longitudinal direction, when the gear drives the rack to operate or the rack drives the gear to operate, the tooth sliding situation between the rack and the gear can be avoided, and therefore it is guaranteed that the electronic lock is locked or unlocked smoothly, longitudinal locking and unlocking can be formed, and the charging gun is convenient to use. Therefore, the application performance of the electronic lock is improved, the electronic lock can be applied to various charging gun structures, and user requirements are met.

Description

Technical Field

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

[0002] With the development of society and the economy, new energy vehicles (NEVs) are becoming increasingly popular around the world as a new generation of transportation. Charging technology for NEVs has also evolved accordingly, leading to increased attention and concern regarding their safety. This is particularly true following the emergence of charging issues around the world, which has led to a surge in the development of NEV charging equipment. According to current national standards, charging connectors with charging currents greater than 16A must be equipped with a locking device. Since NEVs have high charging currents, users must not plug or unplug the connector while it's powered on. Therefore, to ensure charging safety, NEV charging devices must incorporate an electronic lock to prevent disconnection of the vehicle's connector while it's powered on. This electronic lock uses a motor to drive the lock cylinder, unlocking and locking the electronic lock.

[0003] However, electronic locks in the prior art generally adopt a transmission structure of gears and racks, and the lock rods and racks of such electronic locks are both arranged horizontally. When the gears and racks are transmitting, the horizontal arrangement easily causes the gears to slip between the two, which in turn causes the electronic lock to be not smooth enough when locking or unlocking. Moreover, because the lock rod is arranged horizontally, it cannot meet the requirements of other structures of the electronic lock, making the application of the electronic lock inconvenient. Moreover, since the electronic lock contains electronic components such as motors and micro switches, it needs to be waterproofed. However, the waterproof effect of existing electronic locks is not ideal, and it is difficult to work in an IP67 environment. Therefore, the charging gun electronic lock needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a charging gun electronic lock structure which has smooth operation, good waterproof performance and improved application performance.

[0005] In order to solve the above technical problems, the present invention can be implemented by adopting the following technical solutions:

[0006] A charging gun electronic lock structure includes a housing, a drive motor, a locking member, and a micro switch installed inside the housing, wherein a gear is provided at the output end of the drive motor; the locking member is longitudinally arranged within the housing, and a rack meshing with the gear is provided on one side of the locking member, and a lock tongue is provided at one end of the locking member; when the drive motor drives the gear to rotate, the gear drives the rack to move longitudinally within the housing, thereby extending or retracting the lock tongue within the housing.

[0007] In one embodiment, the locking member is further provided with a pressing block cooperating with the micro switch, and when the lock tongue extends outward, the pressing block acts on the micro switch.

[0008] In one embodiment, a manual unlocking member is provided at the other end of the locking member, and the manual unlocking member extends outward through the shell. When the manual unlocking member is pulled outward, the manual unlocking member drives the rack to move longitudinally in the shell, thereby retracting the lock tongue into the shell.

[0009] In one embodiment, the manual unlocking member includes a fixing portion and a pull rope, the pull rope is connected to one end of the fixing portion, and the pull rope extends out of the housing.

[0010] In one embodiment, the shell includes a plastic shell and a cover plate, which is tightly covered with the plastic shell. A lock hole is provided at the bottom of the plastic shell, and a pull rope hole is provided on the cover plate. The lock tongue moves along the lock hole, and the fixing part moves along the pull rope hole.

[0011] In one embodiment, a surface of the cover plate for covering the plastic shell is provided with a plurality of limiting portions.

[0012] In one embodiment, a first sealing ring is provided on the lock tongue, and the lock tongue is sealed between the first sealing ring and the lock hole.

[0013] In one embodiment, a second sealing ring is sleeved on the fixing portion, and the fixing portion is sealed with the rope hole through the second sealing ring.

[0014] In one embodiment, the micro switch and the drive motor are respectively connected to an external power supply through wires, the wires are inserted from the outside into the shell to be electrically connected to the micro switch and the drive motor, and a seal is provided at the insertion point of the wires.

[0015] In one embodiment, the plastic shell and the cover plate are sealed together by heat welding, laser welding, or ultrasonic welding. Beneficial effects

[0016] 1. By installing the locking piece longitudinally in the housing, the lock tongue can extend outward through the bottom of the housing, thereby forming longitudinal locking and unlocking, thereby improving the application performance of the electronic lock and enabling the electronic lock to be applied to a variety of charging gun structures to meet user needs.

[0017] 2. Since the locking piece is installed longitudinally on the housing, the rack on one side of the locking piece can be longitudinally meshed with the gear at the output end of the drive motor. When the gear drives the rack to run, or the rack drives the gear to run, no gear slippage will occur between the two, thereby ensuring that the electronic lock is smoothly locked or unlocked.

[0018] 3. Through the airtight covering of the first sealing ring, the second sealing ring, the sealing member, the cover body and the plastic shell, the electronic lock can be fully sealed, so that the electronic lock can work in an IP67 environment and meet the use requirements of the electronic lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an exploded schematic diagram of the electronic lock structure of the charging gun of the utility model;

[0020] Figure 2 This is a schematic diagram of unlocking the electronic lock structure of the charging gun of the utility model;

[0021] Figure 3 This is a locking schematic diagram of the electronic lock structure of the charging gun of the utility model;

[0022] Figure 4 This is a schematic diagram of the locking part of the electronic lock structure of the charging gun of the present invention;

[0023] Figure 5 This is a schematic diagram of the cover plate of the electronic lock structure of the charging gun of the utility model.

[0024] As shown in the attached figure:

[0025] 100, housing; 110, plastic shell; 111, lock hole; 120, cover plate; 121, drawstring hole; 122, limiter;

[0026] 200, driving motor; 210, gear;

[0027] 300, locking member; 310, rack; 320, lock tongue; 330, pressing block; 340, manual unlocking member; 341, fixing portion; 342, pull rope; 350, first sealing ring; 360, second sealing ring;

[0028] 400, micro switch;

[0029] 500, wire; 510, seal. DETAILED DESCRIPTION

[0030] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only."

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] See also Figures 1 to 5 A charging gun electronic lock structure includes a housing 100, a driving motor 200, a locking member 300 and a micro switch 400 installed inside the housing 100, and a gear 210 is provided at the output end of the driving motor 200; the locking member 300 is longitudinally arranged in the housing 100, and a rack 310 meshing with the gear 210 is provided on one side of the locking member 300, and a lock tongue 320 is provided at one end of the locking member 300; when the driving motor 200 drives the gear 210 to rotate, the gear 210 drives the rack 310 to move longitudinally in the housing 100, thereby extending or retracting the lock tongue 320 in the housing 100.

[0034] Specifically, in this embodiment, the housing 100 includes a plastic shell 110 and a cover plate 120. The drive motor 200, the locking member 300 and the micro switch 400 are all installed in the plastic shell 110, and then the cover plate 120 is tightly covered with the plastic shell 110. When the cover plate 120 is covered, the several limiting portions 122 on the cover plate 120 will be pressed onto the drive motor 200 and the micro switch 400 respectively, thereby achieving limited fixation of the drive motor 200 and the micro switch 400 to prevent them from shifting inside the housing 100, ensuring that the drive motor 200 can drive the locking member 300, and making the locking member 300 smoother when locking and unlocking.

[0035] In order to avoid gear slippage between the gear 210 and the rack 310 of the locking member 300, the locking member 300 is longitudinally installed in the housing 100, so that the rack 310 can be longitudinally meshed with the gear 210. When the drive motor 200 drives the gear 210 to rotate, the gear 210 will move longitudinally with the rack 310, thereby causing the lock tongue 320 to extend outward from the housing 100 or retract inward from the housing 100 to achieve locking and unlocking. The longitudinal movement of the rack 310 can effectively avoid gear slippage between the rack 310 and the gear 210, thereby ensuring the smooth locking and unlocking of the electronic lock.

[0036] At the same time, since the locking member 300 is longitudinally arranged in the shell 100, the lock tongue 320 can also be longitudinally arranged and can extend outward through the bottom of the shell 100, thereby forming longitudinal locking and unlocking, thereby improving the application performance of the electronic lock and enabling the electronic lock to be applied to a variety of charging gun structures to meet user needs.

[0037] Of course, in order to provide feedback on the locking and unlocking signals of the electronic lock, the locking member 300 is also provided with a pressing block 330 that cooperates with the micro switch 400. When the drive motor 200 drives the gear 210 to rotate and the gear 210 drives the rack 310 to move longitudinally, the pressing block 330 will act on the button of the micro switch 400, thereby causing the micro switch 400 to send a signal, thereby realizing signal feedback. This signal feedback can effectively improve the safety performance of the charging gun during use.

[0038] See also Figures 2 to 4 In order to avoid the situation where the lock tongue 320 cannot be retracted due to a malfunction of the electronic lock, in this embodiment, a manual unlocking member 340 is provided at the other end of the locking member 300, and the manual unlocking member 340 includes a fixing portion 341 and a pull rope 342, one end of the pull rope 342 is connected to the fixing portion 341, and the other end of the pull rope 342 extends outward from the housing 100. When the electronic lock malfunctions, the user can manually pull the pull rope 342 outward to move the locking member 300 longitudinally through the fixing portion 341. When the locking member 300 moves longitudinally, it will retract the lock tongue 320 into the housing 100, thereby realizing manual unlocking, thereby improving the safety and practicality of the electronic lock.

[0039] In this embodiment, the lock tongue 320 and the manual unlocking member 340 are arranged relative to each other and form an integrated structure, so that the locking member 300 can be arranged longitudinally in the housing 100. At the same time, the integrated design of the lock tongue 320 and the manual unlocking member 340 can make the overall structure of the electronic lock simpler and easier to manufacture than the separate design in the prior art.

[0040] However, in order to achieve locking and unlocking of the lock tongue 320 and facilitate the extension of the pull rope 342 outside the housing 100, a lock hole 111 is provided at the bottom of the plastic shell 110, and a pull rope hole 121 is opened on the cover plate 120. When the lock tongue 320 is locked and unlocked, it will move along the lock hole 111. At the same time, during automatic locking / unlocking and manual unlocking, the fixing portion 341 will move along the pull rope hole 121, thereby making the structural design of the electronic lock reasonable.

[0041] See also Figure 2 or Figure 3 In order to fully waterproof and dustproof the electronic lock, in this embodiment, a first sealing ring 350 is provided on the lock tongue 320, and the lock tongue 320 is sealed with the lock hole 111 by the first sealing ring 350. A second sealing ring 360 is provided on the fixing portion 341, and the fixing portion 341 is sealed with the rope hole 121 by the second sealing ring 360. The plastic shell 110 and the cover plate 120 are sealed by heat welding, laser welding, or ultrasonic welding. The first sealing ring 350, the second sealing ring 360 and the sealed cover can achieve a comprehensive sealing of the electronic lock, thereby ensuring the sealing, waterproof and dustproof effect of the electronic lock, enabling the electronic lock to operate in an IP67 environment, and enabling the electronic lock to be applied in different places, thereby improving the practicality of the electronic lock.

[0042] Finally, see Figure 1 Since the micro switch 400 and the drive motor 200 need to be powered to work, the micro switch 400 and the drive motor 200 are respectively connected to an external power supply through a wire 500. The wire 500 penetrates from the outside into the housing 100 and is electrically connected to the micro switch 400 and the drive motor 200. A seal 510 is provided at the penetration point of the wire 500. The seal 510 can also achieve sealing of the electronic lock, thereby ensuring the waterproof and dustproof effect of the electronic lock.

[0043] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Any person skilled in the art can smoothly implement the present invention according to the drawings and the above description. However, any person skilled in the art who, without departing from the scope of the present invention, makes slight changes, modifications and equivalent changes based on the above disclosed technical content shall be an equivalent embodiment of the present invention. At the same time, any equivalent changes, modifications and equivalent changes made to the above embodiments based on the essential technology of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A charging gun electronic lock structure, characterized by: It includes a housing, a driving motor, a locking member and a micro switch installed inside the housing, and a gear is provided at the output end of the driving motor; The locking member is longitudinally arranged in the housing, and a rack meshing with the gear is provided on one side of the locking member, and a locking tongue is provided at one end of the locking member; When the drive motor drives the gear to rotate, the gear drives the rack to move longitudinally in the housing, thereby extending or retracting the lock tongue into the housing.

2. The charging gun electronic lock structure according to claim 1, characterized in that: The locking piece is further provided with a pressing block cooperating with the micro switch. When the lock tongue extends outward, the pressing block acts on the micro switch.

3. The charging gun electronic lock structure according to claim 1, characterized in that: A manual unlocking member is provided at the other end of the locking member, and the manual unlocking member extends outward through the shell. When the manual unlocking member is pulled outward, the manual unlocking member drives the rack to move longitudinally in the shell, thereby retracting the lock tongue into the shell.

4. The charging gun electronic lock structure according to claim 3, characterized in that: The manual unlocking component includes a fixing portion and a pull rope, the pull rope is connected to one end of the fixing portion, and the pull rope extends out of the shell.

5. The charging gun electronic lock structure according to claim 4, characterized in that: The housing comprises a plastic shell and a cover plate, which is tightly covered with the plastic shell. A lock hole is provided at the bottom of the plastic shell, and a drawstring hole is provided on the cover plate. The lock tongue moves along the lock hole, and the fixing part moves along the drawstring hole.

6. The charging gun electronic lock structure according to claim 5, characterized in that: A surface of the cover plate used for covering the plastic shell is provided with a plurality of limiting parts.

7. The charging gun electronic lock structure according to claim 5, characterized in that: A first sealing ring is sleeved on the lock tongue, and the lock tongue is sealed between the first sealing ring and the lock hole.

8. The charging gun electronic lock structure according to claim 5, characterized in that: A second sealing ring is sleeved on the fixing portion, and the fixing portion is sealed with the rope hole through the second sealing ring.

9. The charging gun electronic lock structure according to claim 1, characterized in that: The micro switch and the drive motor are respectively connected to an external power supply through wires. The wires are inserted from the outside into the housing to be electrically connected to the micro switch and the drive motor, and a seal is provided at the insertion point of the wires.

10. The charging gun electronic lock structure according to claim 5, characterized in that: The plastic shell and the cover plate are sealed and covered by thermal welding, laser welding or ultrasonic welding.

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