Electric motor vehicle lock
By combining components such as the inner opening arm, inner locking arm, and outer locking arm, along with a reset spring, the problem of existing car door locks being unable to prevent accidental operation has been solved. This achieves a simple structure and convenient use for electric vehicle locks, ensuring the safety and reliability of the car door.
Patent Information
- Application Number
- CN202522425551.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-15
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-11-15
AI Technical Summary
The existing car door locks are diverse in type and have similar structural designs, making it impossible to effectively prevent accidental operation.
It adopts a combination design of components such as inner opening arm, inner locking arm, outer locking arm, outer opening arm, locking connecting arm, clutch arm, and anti-misoperation arm. It realizes unlocking, locking and anti-misoperation through rotation and linear motion, and combines the use of reset spring to ensure safety.
This invention achieves a simple and easy-to-use electric vehicle lock that effectively prevents accidental operation and ensures reliable locking and smooth opening of the door.
Smart Images

Figure CN224679328U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive parts technology, specifically relating to an electric vehicle lock. Background Technology
[0002] As a crucial component of vehicles, vehicle door locks are devices used to lock or unlock car doors through internally designed mechanical components. They serve a safety function, ensuring reliable locking during normal driving and preventing easy opening in case of accidents. However, the current market offers a wide variety of car door locks with largely similar structural designs, failing to effectively prevent accidental unlocking. Therefore, there is an urgent need to develop a more rationally designed and user-friendly electric vehicle lock. Utility Model Content
[0003] The purpose of this utility model is to propose an electric vehicle lock that is simple in structure, reasonable in design, and easy to use.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] An electric vehicle lock mainly comprises: an inner opening arm, an inner locking arm, an outer locking arm, an outer opening arm, a locking connecting arm, a clutch arm, an anti-misoperation arm, an inner locking arm shaft, an outer locking arm shaft, an inner opening arm shaft, a plastic-coated locking plate, a stop pawl, a locking plate shaft, a stop pawl shaft, an anti-misoperation arm shaft, a clutch arm shaft, a release arm assembly, and a limit shaft. The inner opening arm rotates along the inner opening arm shaft, with one end abutting against the release arm assembly. The release arm assembly is riveted to the stop pawl, and both rotate around the stop pawl shaft. The inner locking arm rotates along the inner locking arm shaft and is locked onto the locking connecting arm. One end of the locking connecting arm is connected to the clutch arm. The anti-misoperation arm is riveted together with the clutch arm shaft, and the other end is placed in the annular groove at the end of the outer locking arm. The outer locking arm rotates along the outer locking arm shaft, driving the locking connecting arm to make linear motion, pulling the clutch arm to move. The clutch arm end is riveted with a limiting shaft, which is placed in the open groove at the end of the release arm component. The outer opening arm pushes the release arm component, and the release arm component is riveted with the stop pawl, both rotating around the stop pawl shaft. The anti-misoperation arm rotates along the anti-misoperation arm shaft, pushing the locking connecting arm to make linear motion. The plastic-coated plate rotating along the plate shaft cooperates with the stop pawl to realize unlocking and locking.
[0006] As a preferred technical solution of this utility model, it also includes an inner locking arm spring, a locking plate spring, a stop pawl spring, and a tension spring. The inner locking arm spring is used for resetting the inner locking arm, the locking plate spring is used for resetting the plastic-coated locking plate, the stop pawl spring is used for resetting the stop pawl, and the tension spring is used for resetting the release arm component.
[0007] The electric vehicle lock proposed in this utility model has a novel structural design and high market application prospects. Compared with the prior art, the beneficial effects of this utility model are as follows:
[0008] 1. Pull the inner opening arm to open it from the inside. The inner opening arm rotates around the inner opening arm axis. Pull the release arm component to rotate. The release arm component moves coaxially with the stop pawl, driving the plastic-coated plate to rotate, thus realizing the inner opening and unlocking.
[0009] 2. Push the outward opening arm to open outward. The outward opening arm pushes the release arm component to rotate. The release arm component moves coaxially with the stop pawl, driving the plastic-coated pallet to rotate, thus realizing outward opening and unlocking.
[0010] 3. The inner locking arm rotates around the inner locking arm axis, which drives the locking connecting arm to move linearly. This, in turn, pulls the clutch arm to move linearly, causing the shaft on the clutch arm and the limit shaft to contact (lock) and separate (unlock) the stop pawl. This ensures that the stop pawl cannot be moved when locked and can be moved when unlocked.
[0011] 4. When the door lock is in the open position of the latch plate and the locked position of the locking arm, if the door is closed, the plastic-coated latch plate rotates around the latch plate axis, pushing the stop pawl to rotate around the stop pawl axis. The head of the stop pawl will drive the anti-misoperation arm to move around the anti-misoperation arm axis. Because the locking connecting arm, clutch arm, and anti-misoperation arm are riveted together through the clutch arm axis, when the anti-misoperation arm rotates, the connecting arm and clutch arm also move, causing the limit axis on the clutch arm to move to the left and contact the stop pawl. The stop pawl cannot be moved, thus achieving the prevention of misoperation. Attached Figure Description
[0012] Figure 1 This is the front view of the electric vehicle lock proposed in this embodiment.
[0013] Figure 2 This is a left view of the electric vehicle lock proposed in this embodiment.
[0014] Figure 3 This is a right view of the electric vehicle lock proposed in this embodiment.
[0015] Figure 4 This is a bottom view of the electric vehicle lock proposed in this embodiment.
[0016] Figure 5 This is a top view of the electric vehicle lock proposed in this embodiment.
[0017] Figure 6 This is a rear view of the electric vehicle lock proposed in this embodiment.
[0018] Figure 7 This is a perspective view of the electric vehicle lock proposed in this embodiment.
[0019] Figure 8 This is a bottom view of the electric vehicle lock proposed in this embodiment in the locked (a) and unlocked (b) states (with some parts removed).
[0020] Figure 9 This is a top view of the electric vehicle lock proposed in this embodiment in the locked state (with some parts removed).
[0021] The meanings of the reference numerals in the figure are as follows:
[0022] 1-Base plate, 2-Cover plate, 3-Inner opening arm, 4-Inner locking arm, 5-Outer locking arm, 6-Outer opening arm, 7-Locking connecting arm, 8-Clutch arm, 9-Anti-misoperation arm, 10-Inner locking arm shaft, 11-Outer locking arm shaft, 12-Inner opening arm shaft, 13-Inner locking arm spring, 14-Plastic coated clamping plate, 15-Stop pawl, 16-Clamping plate spring, 17-Stop pawl spring, 18-Tension spring, 19-Clamping plate shaft, 20-Stop pawl shaft, 21-Anti-misoperation arm shaft, 22-Clutch arm shaft, 23-Release arm component, 24-Limiting shaft. Detailed Implementation
[0023] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings.
[0024] like Figure 1-9 As shown, the electric vehicle lock proposed in this utility model mainly includes: a base plate 1, a cover plate 2, an inner opening arm 3, an inner locking arm 4, an outer locking arm 5, an outer opening arm 6, a locking connecting arm 7, a clutch arm 8, an anti-misoperation arm 9, an inner locking arm shaft 10, an outer locking arm shaft 11, an inner opening arm shaft 12, an inner locking arm spring 13, a plastic-coated locking plate 14, a stop pawl 15, a locking plate spring 16, a stop pawl spring 17, a tension spring 18, a locking plate shaft 19, a stop pawl shaft 20, an anti-misoperation arm shaft 21, a clutch arm shaft 22, a release arm component 23, and a limit shaft 24.
[0025] The base plate 1 and cover plate 2 serve as support and mounting carriers. The inner opening arm 3 rotates along the inner opening arm shaft 12, with one end abutting against the release arm component 23. The release arm component 23 is riveted to the stop pawl 15, and both rotate around the stop pawl shaft 20. The inner locking arm 4 rotates along the inner locking arm shaft 10 and is engaged with the locking connecting arm 7. One end of the locking connecting arm 7 is riveted to the clutch arm 8 and the anti-misoperation arm 9 via the clutch arm shaft 22, and the other end is placed in the annular groove at the end of the outer locking arm 5. The outer locking arm 5 rotates along the outer locking arm shaft 11, causing the locking connecting arm 7 to move linearly and pulling the clutch arm 8 to move. The clutch arm 8 is riveted to the end of a limiting shaft 24, which is placed in the opening groove at the end of the release arm component 23. The outer opening arm 6 pushes the release arm component 23, which is riveted to the stop pawl 15, and both rotate around the stop pawl shaft 20. The anti-misoperation arm 9 rotates along the anti-misoperation arm shaft 21, pushing the locking connecting arm 7 to move linearly. The plastic-coated locking plate 14, which rotates along the locking plate shaft 19, engages with the stop pawl 15 to achieve locking and unlocking. The inner locking arm spring 13 is used to reset the inner locking arm 4, the locking plate spring 16 is used to reset the plastic-coated locking plate 14, the stop pawl spring 17 is used to reset the stop pawl 15, and the tension spring 18 is used to reset the release arm component 23.
[0026] The working process of the electric vehicle lock proposed in this utility model is as follows:
[0027] 1. Inner opening process:
[0028] Pull the inner opening arm 3 to open it from the inside. The inner opening arm 3 rotates around the inner opening arm shaft 12. Pull the release arm component 23 to rotate. The release arm component 23 moves coaxially with the stop pawl 15, which drives the plastic-coated card plate 14 to rotate, thereby unlocking.
[0029] 2. Outward opening process:
[0030] The external opening arm 6 is pushed to open outwards, and the external opening arm 6 pushes the release arm component 23 to rotate. The release arm component 23 moves coaxially with the stop pawl 15, which drives the plastic-coated card plate 14 to rotate, thereby unlocking.
[0031] 3. Locking process (e.g.) Figure 8 , 9 ):
[0032] The inner locking arm 4 rotates around the inner locking arm shaft 10, which drives the locking connecting arm 7 to move linearly. This, in turn, pulls the clutch arm 8 to move linearly, causing the shaft on the clutch arm 8 and the limit shaft 24 to contact (lock) and separate (unlock) the stop pawl 15. This achieves the following: when locked, the stop pawl 15 cannot be moved; when unlocked, the stop pawl 15 can be moved.
[0033] 4. Error prevention function:
[0034] When the door lock is in the open position of the latch plate and the locked position of the locking arm, if the door is closed, the plastic-coated latch plate 14 rotates around the latch plate shaft 19, pushing the stop pawl 15 to rotate around the stop pawl shaft 20. The head of the stop pawl 15 will drive the anti-misoperation arm 9 to move around the anti-misoperation arm shaft 21. Because the locking connecting arm 7, the clutch arm 8, and the anti-misoperation arm 9 are riveted together through the clutch arm shaft 22, when the anti-misoperation arm 9 rotates, the connecting arm 7 and the clutch arm 8 also move, causing the limit shaft 24 on the clutch arm 8 to move to the left and contact the stop pawl, so that the stop pawl 15 cannot be moved.
Claims
1. An electric vehicle lock, characterized in that, Its structure mainly includes: an inner opening arm, an inner locking arm, an outer locking arm, an outer opening arm, a locking connecting arm, a clutch arm, an anti-misoperation arm, an inner locking arm shaft, an outer locking arm shaft, an inner opening arm shaft, a plastic-coated clamping plate, a stop pawl, a clamping plate shaft, a stop pawl shaft, an anti-misoperation arm shaft, a clutch arm shaft, a release arm assembly, and a limit shaft. The inner opening arm rotates along the inner opening arm shaft, with one end abutting against the release arm assembly. The release arm assembly is riveted to the stop pawl, and both rotate around the stop pawl shaft. The inner locking arm rotates along the inner locking arm shaft and is clamped onto the locking connecting arm. One end of the locking connecting arm is connected to the clutch arm and the anti-misoperation arm. The clutch arm is riveted together with the other end, which is placed in the annular groove at the end of the outer locking arm. The outer locking arm rotates along the outer locking arm shaft, driving the locking connecting arm to move linearly and pulling the clutch arm to move. The clutch arm end is riveted with a limiting shaft, which is placed in the opening groove at the end of the release arm component. The outer opening arm pushes the release arm component, which is riveted to the stop pawl and both rotate around the stop pawl shaft. The anti-misoperation arm rotates along the anti-misoperation arm shaft, pushing the locking connecting arm to move linearly. The plastic-coated plate that rotates along the plate shaft cooperates with the stop pawl to realize unlocking and locking.
2. The electric vehicle lock as described in claim 1, characterized in that, It also includes an internal locking arm spring, a retaining plate spring, a stop pawl spring, and a tension spring. The internal locking arm spring is used to reset the internal locking arm, the retaining plate spring is used to reset the plastic-coated retaining plate, the stop pawl spring is used to reset the stop pawl, and the tension spring is used to reset the release arm assembly.
3. The electric vehicle lock as described in claim 1, characterized in that, Pull the inner opening arm to open it from the inside. The inner opening arm rotates around the inner opening arm axis. Pull the release arm component to rotate. The release arm component moves coaxially with the stop pawl, driving the plastic-coated plate to rotate, thus realizing the inner opening and unlocking.
4. The electric vehicle lock as described in claim 1, characterized in that, Push the outward opening arm to open it outward. The outward opening arm pushes the release arm component to rotate. The release arm component moves coaxially with the stop pawl, driving the plastic-coated pallet to rotate, thus realizing the outward opening and unlocking.
5. The electric vehicle lock as described in claim 1, characterized in that, The inner locking arm rotates around its axis, causing the locking connecting arm to move linearly. This, in turn, pulls the clutch arm to move linearly, causing the shaft on the clutch arm and the limit shaft to contact (lock) and separate (unlock) the stop pawl. This ensures that the stop pawl cannot be moved when locked and can be moved when unlocked.
6. The electric vehicle lock as described in claim 1, characterized in that, When the door lock is in the open position and the locking arm is in the locked position, if the door is closed, the plastic-coated plate rotates around the plate axis, pushing the stop pawl to rotate around the stop pawl axis. The head of the stop pawl will drive the anti-misoperation arm to move around the anti-misoperation arm axis. Because the locking connecting arm, clutch arm, and anti-misoperation arm are riveted together through the clutch arm axis, when the anti-misoperation arm rotates, the connecting arm and clutch arm also move, causing the limit axis on the clutch arm to move to the left and contact the stop pawl. The stop pawl cannot be moved, thus preventing misoperation.