Double-lock-rod electronic lock
By designing a dual-locking electronic lock, the AC charging port and DC charging port can be locked simultaneously, solving the problem that existing technologies cannot lock them at the same time, and improving the safety and reliability of the charging process for new energy vehicles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-03
AI Technical Summary
Existing electronic locks for new energy vehicle charging guns cannot simultaneously lock both AC and DC charging ports, thus failing to meet the safety requirements for fast charging.
Design a dual-bar electronic lock that uses gear assembly linkage to achieve synchronous locking and unlocking of AC charging port and DC charging port bars. Combined with an emergency unlocking handle and micro switch for signal feedback, it ensures reliability and precise control.
It achieves locking functions for both AC and DC charging ends, has a compact structure, and can be applied to charging sockets and charging guns for new energy vehicles, improving the safety and reliability of the charging process.
Smart Images

Figure CN223962019U_ABST
Abstract
Description
[Technical Field]
[0001] This utility model relates to the field of automotive electronic lock technology, specifically a double-bar electronic lock for automobiles. [Background Technology]
[0002] Currently, in the electronic lock device of the charging gun for new energy vehicles, the electronic lock mainly realizes the locking / unlocking function of the electronic locking mechanism through the linkage of motor-gear rack and pinion locking rod, and realizes the signal detection and feedback of locking and unlocking of the electronic locking mechanism through tactile switch / micro switch, thus ensuring the safety of charging new energy vehicles.
[0003] However, in the existing electronic lock structure of new energy vehicles, the electronic lock of the AC charging system is arranged in the charging base, and the electronic lock of the DC charging system is arranged in the charging gun. As users have higher and higher requirements for charging time, the demand for fast charging is also gradually increasing, and they are paying more and more attention to the safety of the charging process. However, most of the existing charging guns are single-bar electronic locks of AC charging systems, which cannot realize the function of locking both DC and AC charging guns in one car charging electronic lock.
[0004] Therefore, it would be of great significance to provide a double-bar electronic lock to solve the above problems. [Utility Model Content]
[0005] The purpose of this invention is to address the aforementioned shortcomings by providing a dual-bar electronic lock that enables simultaneous locking and unlocking of both the AC charging port and DC charging port bars. This ensures that both the AC and DC charging terminals of the charging base have locking functions, and the lock is compact and highly reliable.
[0006] To achieve the above objectives, a double-locking-bar electronic lock is designed, including a motor 1. The output end of the motor 1 is connected to a gear 2. Gear 2 meshes with a large gear 1 of gear assembly 3. A small gear 1 of gear assembly 3 meshes with a large gear 2 of gear assembly 4. Gear assembly 3 5 includes a bevel gear 3, a large gear 3, a small gear 3, and a gear shaft 3. The bevel gear 3, large gear 3, and small gear 3 are all mounted on the gear shaft 3. The large gear 3 is mounted in the middle of the gear shaft 3. The bevel gear 3 and small gear 3 are respectively located on both sides of the large gear 3. The large gear of gear assembly 3 5... Gear 3 meshes with pinion 2 of gear assembly 2 4. Bevel gear 3 of gear assembly 3 5 meshes with bevel gear 4 of gear assembly 4 6. Gear 4 of gear assembly 4 6 meshes with rack 2 7. A DC charging port locking rod 8 is installed on rack 2 7. The DC charging port locking rod 8 is used to lock the charging gun when using DC charging. Pinion 3 of gear assembly 3 5 meshes with gear 2 9. Gear 2 9 meshes with rack 1 10. An AC charging port locking rod 11 is installed on rack 1 10. The AC charging port locking rod 11 is used to lock the charging gun when using AC charging.
[0007] Furthermore, gear one is a spur gear, and gear assembly one 3 includes a large gear one, a small gear one, and a gear shaft one. Both the large gear one and the small gear one are mounted on the gear shaft one. Both the large gear one and the small gear one are spur gears, which are not only easier to manufacture and process, but also have lower costs, and provide smoother transmission during meshing.
[0008] Furthermore, gear assembly 2 4 includes a large gear 2, a small gear 2 and a gear shaft 2. Both the large gear 2 and the small gear 2 are spur gears. The large gear 2 is installed at one end of the gear shaft 2 and the small gear 2 is installed at the other end of the gear shaft 2. An installation gap is reserved between the large gear 2 and the small gear 2. This gap can provide installation space for the bevel gear 4 of gear assembly 4 6, making the structure more compact.
[0009] Furthermore, both the large gear 3 and the small gear 3 of gear assembly 3 5 are spur gears, and the bevel gear 3 of gear assembly 3 5 is a spur bevel gear, which is easier to manufacture and process, has lower cost, and provides smoother transmission.
[0010] Furthermore, gear assembly 46 includes bevel gear 4, gear 4 and gear shaft 4. Both bevel gear 4 and gear 4 are mounted on gear shaft 4. Bevel gear 4 is a straight bevel gear and gear 4 is a straight cylindrical gear, which is easier to manufacture and process, has lower cost, and provides smoother transmission.
[0011] Furthermore, the bevel gear 3 of gear assembly 3 5 is a straight bevel gear, and gear 2 9 and the large gear 3 and small gear 3 of gear assembly 3 5 are all straight cylindrical gears, which are also easier to manufacture and process, have lower costs, and provide smoother transmission.
[0012] Furthermore, an emergency unlocking handle 12 is provided, which is connected to rack 10. The handle of the emergency unlocking handle 12 drives rack 10 to unlock AC charging port lock 11. Rack 10 simultaneously drives gear 2 9, gear assembly 3 5, gear assembly 4 6, and rack 2 7 to unlock DC charging port lock 8. The emergency unlocking handle 12 is used to unlock the electronic lock when the gun cannot be unlocked normally after charging is completed, thus realizing emergency unlocking.
[0013] Furthermore, a micro switch 13 is also provided. The micro switch 13 is used for feedback signals. The micro switch 13 is located on one side of the rack 10 and is connected to the inclined surface on the side of the rack 10 to provide signal feedback. This allows for more accurate feedback of the electronic lock's movement status, improves product applicability, and makes control more reliable.
[0014] Compared with the prior art, this utility model has the following advantages:
[0015] (1) In this utility model, the gear assembly three drives the bevel gears of the gear assembly two and the gear assembly four to rotate, thereby causing the rack one to move the AC charging port locking rod and the rack two to move the DC charging port locking rod, thereby realizing the simultaneous locking and unlocking of the AC charging port locking rod and the DC charging port locking rod.
[0016] (2) This utility model has a double locking rod integrated design structure, which makes both the AC charging end and the DC charging end of the charging base have locking functions, thus realizing that a car charging electronic lock has the function of locking both DC and AC charging guns.
[0017] (3) This utility model has a simple structure and is easy to manufacture. It can be unlocked in an emergency by means of an emergency unlocking handle and can provide feedback signals by means of a micro switch, thereby providing more accurate feedback on the movement status of the electronic lock, improving the applicability of the product and making the control more reliable.
[0018] (4) This utility model has a compact structure and high reliability. It can be applied to the electronic lock device of charging base and charging gun of new energy vehicles and is worth promoting and applying. [Image Description]
[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;
[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ;
[0021] Figure 3 This is a front structural diagram of the present invention;
[0022] Figure 4 This is a schematic diagram of the left side structure of this utility model;
[0023] Figure 5 This is a schematic diagram of the right side structure of this utility model;
[0024] Figure 6 This is a top view of the structure of this utility model;
[0025] Figure 7 This is a bottom view structural diagram of this utility model;
[0026] In the diagram: 1. Motor; 2. Gear 1; 3. Gear assembly 1; 4. Gear assembly 2; 5. Gear assembly 3; 6. Gear assembly 4; 7. Rack 2; 8. DC charging port locking lever; 9. Gear 2; 10. Rack 1; 11. AC charging port locking lever; 12. Emergency unlocking handle; 13. Micro switch. [Detailed Implementation]
[0027] The present invention will be further described below with reference to the accompanying drawings:
[0028] As attached Figure 1 To be continued Figure 7 As shown, this utility model provides a double-locking rod electronic lock, including a motor 1. The output end of the motor 1 is connected to a gear 2. Gear 2 meshes with a large gear 1 of gear assembly 3. A small gear 1 of gear assembly 3 meshes with a large gear 2 of gear assembly 4. Gear assembly 3 5 includes a bevel gear 3, a large gear 3, a small gear 3, and a gear shaft 3. The bevel gear 3, large gear 3, and small gear 3 are all mounted on the gear shaft 3. The large gear 3 is mounted in the middle of the gear shaft 3. The bevel gear 3 and small gear 3 are respectively located on both sides of the large gear 3. The large gear 3 of gear assembly 3 5... Gear 3 meshes with pinion 2 of gear assembly 2 4. Bevel gear 3 of gear assembly 3 5 meshes with bevel gear 4 of gear assembly 4 6. Gear 4 of gear assembly 4 6 meshes with rack 2 7. A DC charging port locking rod 8 is installed on rack 2 7. The DC charging port locking rod 8 is used to lock the charging gun when using DC charging. Pinion 3 of gear assembly 3 5 meshes with gear 2 9. Gear 2 9 meshes with rack 1 10. An AC charging port locking rod 11 is installed on rack 1 10. The AC charging port locking rod 11 is used to lock the charging gun when using AC charging.
[0029] Among them, the bevel gear three of gear assembly three 5 is a straight bevel gear, and gear two 9, as well as the large gear three and small gear three of gear assembly three 5, are all straight cylindrical gears, which are easier to manufacture and process, have lower costs, and provide smoother transmission; an emergency unlocking handle 12 is also provided, which is connected to rack one 10. The handle of the emergency unlocking handle 12 drives rack one 10 to unlock the AC charging port lock lever 11. Rack one 10 simultaneously drives gear two 9, gear assembly three 5, gear assembly four 6, and rack two 7 to unlock the DC charging port lock lever 8, thus enabling emergency unlocking. The handle 12 is used to unlock the electronic lock when it cannot be unlocked normally after charging, thus enabling emergency unlocking. A micro switch 13 is also provided, which is used for feedback signals. The micro switch 13 is located on one side of the rack 10 and is connected to the inclined surface on the side of the rack 10 for signal feedback. Specifically, when in the unlocked position, the micro switch 13 is released. When locked, the rack 10 engages with the micro switch 13, pressing down the micro switch 13 to provide signal feedback. This allows for more accurate feedback of the electronic lock's movement status, improving product applicability and making control more reliable.
[0030] Gear 1 is a spur gear. Gear assembly 3 includes a large gear 1, a small gear 1 and a gear shaft 1. Both the large gear 1 and the small gear 1 are mounted on the gear shaft 1. Both the large gear 1 and the small gear 1 are spur gears, which are not only easier to manufacture and process, but also have lower costs, and provide smoother transmission during meshing. Gear assembly 2 4 includes a large gear 2, a small gear 2, and a gear shaft 2. Both the large gear 2 and the small gear 2 are spur gears. The large gear 2 is mounted on one end of the gear shaft 2, and the small gear 2 is mounted on the other end of the gear shaft 2. An installation gap is reserved between the large gear 2 and the small gear 2. This gap provides installation space for the bevel gear 4 of gear assembly 4 6, making the structure more compact. Both the large gear 3 and the small gear 3 of gear assembly 3 5 are spur gears. The bevel gear 3 of gear assembly 3 5 is a spur bevel gear, which is easier to manufacture and process, has lower cost, and provides smoother transmission. Gear assembly 4 6 includes a bevel gear 4, a gear 4, and a gear shaft 4. Both the bevel gear 4 and the gear 4 are mounted on the gear shaft 4. The bevel gear 4 is a spur bevel gear, and the gear 4 is a spur gear, which is easier to manufacture and process, has lower cost, and provides smoother transmission.
[0031] In this invention, motor 1 locks and unlocks the electronic lock by rotating in both directions; gear 2 can be a 10-tooth spur gear; gear assembly 3 can be a combination of a 10-tooth spur gear and a 34-tooth spur gear; gear assembly 4 can be a combination of a 10-tooth spur gear and a 36-tooth spur gear; gear assembly 5 can be a combination of a 14-tooth bevel gear, a 24-tooth spur gear, and a 14-tooth spur gear; gear assembly 6 can be a combination of a 14-tooth bevel gear and a 14-tooth spur gear; the DC charging port locking lever 8 locks the charging gun when using DC charging; gear 9 can be a 14-tooth spur gear; the AC charging port locking lever 11 locks the charging gun when using AC charging; the emergency unlocking handle 12 can unlock the electronic lock when the charging gun cannot be unlocked normally after charging is complete; the micro switch 13 provides a feedback signal.
[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art. The standard parts used can be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the circuit connection adopts conventional connection methods in the existing technology, which will not be described in detail here.
[0033] This utility model is not limited to the above-described embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of this utility model shall be considered equivalent substitutions and shall be included within the protection scope of this utility model.
Claims
1. A double-bar electronic lock, comprising a motor (1) and a gear assembly (5), characterized in that: The output end of the motor (1) is connected to gear one (2), gear one (2) meshes with the large gear one of gear assembly one (3), and the small gear one of gear assembly one (3) meshes with the large gear two of gear assembly two (4). The gear assembly three (5) includes bevel gear three, large gear three, small gear three and gear shaft three. The bevel gear three, large gear three and small gear three are all mounted on gear shaft three. The large gear three is mounted in the middle of gear shaft three. The bevel gear three and small gear three are respectively arranged on both sides of the large gear three. The large gear three of gear assembly three (5) meshes with the small gear two of gear assembly two (4). Next, the bevel gear three of the gear assembly three (5) meshes with the bevel gear four of the gear assembly four (6), the gear four of the gear assembly four (6) meshes with the rack two (7), the rack two (7) is equipped with a DC charging port locking rod (8), the DC charging port locking rod (8) is used to lock the charging gun when using DC charging, the pinion three of the gear assembly three (5) meshes with the gear two (9), the gear two (9) meshes with the rack one (10), the rack one (10) is equipped with an AC charging port locking rod (11), the AC charging port locking rod (11) is used to lock the charging gun when using AC charging.
2. The double-bar electronic lock as described in claim 1, characterized in that: The first gear is a spur gear. The first gear assembly (3) includes a large gear, a small gear and a gear shaft. The large gear and the small gear are both mounted on the gear shaft. The large gear and the small gear are both spur gears.
3. The double-bar electronic lock as described in claim 1, characterized in that: The gear assembly 2 (4) includes a large gear 2, a small gear 2 and a gear shaft 2. The large gear 2 and the small gear 2 are both spur gears. The large gear 2 is installed at one end of the gear shaft 2 and the small gear 2 is installed at the other end of the gear shaft 2. An installation gap is reserved between the large gear 2 and the small gear 2.
4. The double-bar electronic lock as described in claim 1, characterized in that: The large gear three and small gear three of the gear assembly three (5) are both spur gears, and the bevel gear three of the gear assembly three (5) is a spur bevel gear.
5. The double-bar electronic lock as described in claim 1, characterized in that: The gear assembly four (6) includes a bevel gear four, a gear four and a gear shaft four. The bevel gear four and the gear four are both mounted on the gear shaft four, and the bevel gear four is a straight bevel gear and the gear four is a straight cylindrical gear.
6. The double-bar electronic lock as described in claim 1, characterized in that: The bevel gear three of the gear assembly three (5) is a straight bevel gear, and the gear two (9) and the large gear three and small gear three of the gear assembly three (5) are all straight cylindrical gears.
7. The double-bar electronic lock as described in any one of claims 1 to 6, characterized in that: An emergency unlocking handle (12) is also provided. The emergency unlocking handle (12) is connected to rack one (10). The handle of the emergency unlocking handle (12) drives rack one (10) to unlock the AC charging port lock rod (11). The rack one (10) drives gear two (9), gear assembly three (5), gear assembly four (6), and rack two (7) to unlock the DC charging port lock rod (8). The emergency unlocking handle (12) is used to unlock the electronic lock when the gun cannot be unlocked normally after charging is completed.
8. The double-bar electronic lock as described in claim 7, characterized in that: A micro switch (13) is also provided. The micro switch (13) is used to provide feedback signals. The micro switch (13) is located on one side of the rack (10) and is connected to the inclined surface of the side of the rack (10) for signal feedback.