Tail box lock of electric vehicle
The electric vehicle tailgate lock, which uses an electric drive mechanism to move the limit latch, solves the problem of poor anti-theft performance of mechanical locks, realizes electronic unlocking, and improves the anti-theft performance of electric vehicles.
Patent Information
- Application Number
- CN202520463040.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Existing electric vehicle glove box or trunk locks are mainly mechanical, which have poor anti-theft performance and cannot meet the anti-theft requirements of electronic control systems.
An electric vehicle tailgate lock was designed, which uses an electric drive mechanism to move the limit buckle up and down. The fully electronic unlocking is achieved through the cooperation of the motor and drive shaft. The lock includes a housing, a pin, a limit mechanism and an elastic element. The movement of the limit buckle is achieved by using the motor to drive the cam to rotate.
It enables convenient and intelligent unlocking of the electric vehicle's tailgate lock, improves anti-theft performance, and meets the anti-theft requirements of the electronic control system.
Smart Images
Figure CN223893972U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric lock technology, specifically an electric vehicle tailgate lock. Background Technology
[0002] Electric vehicle theft prevention has long been a difficult problem that electric vehicle manufacturers have been trying to solve. Currently, the glove boxes or trunk locks of domestic electric vehicles are mainly mechanical, offering poor anti-theft performance and making them easy to open for theft and damage. Furthermore, domestic electric vehicle glove boxes or trunk locks cannot meet the electronic control requirements of electric vehicle anti-theft devices with identification systems and microcomputer central controllers. Therefore, in light of these limitations, there is an urgent need to develop a new type of electric vehicle trunk lock to meet practical needs. Utility Model Content
[0003] The purpose of this invention is to provide a tailgate lock for electric vehicles to solve the above-mentioned defects.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] An electric vehicle tailgate lock includes a housing, a pin, and a limiting mechanism disposed inside the housing. The limiting mechanism includes a limiting buckle and an elastic element. The bottom end of the limiting buckle is movably disposed inside the housing via the elastic element. A slot is provided on the surface of the housing, through which the pin can extend into the housing and engage with the limiting buckle. An electric drive mechanism for controlling the up-and-down movement of the limiting buckle is also provided inside the housing. The electric drive mechanism includes a drive source and a drive shaft. The front end of the drive shaft is an elliptical cam. The side wall of the limiting buckle is provided with a sliding groove that matches the cam, and the cam is rotatably disposed in the sliding groove.
[0006] In the above description, as a further embodiment, the housing includes a cover plate and a base, the slot is horizontally opened on the side wall of the cover plate, and the limiting buckle is disposed on one side of the slot by means of an elastic element that moves up and down.
[0007] As a further solution, one end of the pin has a pin hole, and the top of the limiting buckle has a limiting groove. The top of the limiting buckle forms a "U"-shaped groove structure through the limiting groove, and one side of the limiting buckle can pass through the pin hole of the pin to form a horizontal limiting structure.
[0008] As a further solution, as described above, the side of the slot near the limiting buckle is a wedge, which is inclined toward one side of the slot.
[0009] As a further embodiment of the above description, the drive source is a motor, and the output shaft of the motor is plugged into and fixed to the rear end of the drive shaft. The motor is fixedly connected to the inside of the housing by a bracket.
[0010] As a further embodiment of the above description, the bracket has an internal mounting cavity that matches the motor. The mounting cavity has limiting notches on both sides of the end near the drive shaft. The middle side wall of the drive shaft has an outwardly protruding limiting protrusion. The limiting protrusion can swing between the two limiting notches.
[0011] As a further option, the elastic element described above is made of a spring.
[0012] The beneficial effects of this utility model are as follows:
[0013] This application discloses an electric vehicle tailgate lock. The electric drive mechanism, consisting of a motor and a drive shaft, drives a cam at the front end of the drive shaft to rotate. The cam is rotatably mounted in a groove on the side wall of the limit buckle. The motor drives the cam to achieve the unlocking process of the limit buckle moving up and down. Under the electric control of the electric drive mechanism, the limit buckle can complete a fully electronic unlocking operation with the pin, making the electric vehicle tailgate lock more convenient and intelligent. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the electric vehicle tailgate lock described in this utility model;
[0015] Figure 2 This is an exploded view of the structure of the electric vehicle tailgate lock described in this utility model;
[0016] Figure 3 This is a schematic diagram of the limiting mechanism described in this utility model;
[0017] Figure 4 This is a cross-sectional view of the electric vehicle tailgate lock described in this utility model;
[0018] In the diagram: 1-base, 2-cover plate, 21-slot, 3-pin, 31-pin hole, 4-motor, 5-drive shaft, 51-limiting protrusion, 52-cam, 6-limiting buckle, 61-limiting groove, 62-sloping wedge, 63-slide groove, 7-elastic element, 8-bracket, 81-mounting cavity, 82-limiting notch. Detailed Implementation
[0019] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.
[0020] Please see Figure 1-4The specific implementation of an electric vehicle tailgate lock includes a housing, a pin 3, and a limiting mechanism disposed inside the housing. The limiting mechanism includes a limiting buckle 6 and an elastic element 7. The elastic element 7 is composed of a spring. The bottom end of the limiting buckle 6 is movably disposed inside the housing through the elastic element 7. The housing includes a cover plate 2 and a base 1. The slot 21 is horizontally opened on the side wall of the cover plate 2. The limiting buckle 6 is disposed on one side of the slot 21 by moving up and down through the elastic element 7. The pin 3 can extend through the slot 21 into the housing to cooperate with the limiting buckle 6. The housing is also provided with an electric drive mechanism for controlling the up and down movement of the limiting buckle 6. The electric drive mechanism includes a drive source and a drive shaft 5. The front end of the drive shaft 5 is an elliptical cam 52. The side wall of the limiting buckle 6 is provided with a sliding groove 63 that matches the cam 52. The cam 52 is rotatably disposed in the sliding groove 63.
[0021] The electric drive mechanism, consisting of a motor 4 and a drive shaft 5, drives the cam 52 at the front end of the drive shaft 5 to rotate, so that the cam 52 is rotatably set in the slide groove 63 on the side wall of the limit buckle 6. Thus, the motor 4 drives the cam 52 to realize the unlocking process of the limit buckle 6 moving up and down. Under the electric control of the electric drive mechanism, the limit buckle 6 can complete the fully electric unlocking operation with the pin 3, making an electric vehicle tailgate lock more convenient and intelligent.
[0022] Specific examples Figure 3 and 4 As shown, one end of the pin 3 has a pin hole 31, and the top of the limiting buckle 6 has a limiting groove 61. The top of the limiting buckle 6 forms a "U"-shaped groove structure through the limiting groove 61. The side of the limiting buckle 6 near the slot 21 is a wedge 62. The wedge 62 is inclined towards one side of the slot 21. The wedge 62 can pass through the pin hole 31 of the pin 3 to form a horizontal limiting structure.
[0023] Specific examples Figure 2 and 3 As shown, the drive source is composed of a motor 4, and the output shaft of the motor 4 is plugged into and fixed to the rear end of the drive shaft 5. The motor 4 is fixedly connected to the inside of the housing through a bracket 8. The bracket 8 has a mounting cavity 81 that matches the motor 4. The mounting cavity 81 has a limiting notch 82 on both sides near the end of the drive shaft 5. The middle side wall of the drive shaft 5 has an outwardly protruding limiting protrusion 51. The limiting protrusion 51 can swing between the two limiting notches 82.
[0024] An unlocking process for an electric vehicle tailgate lock: The motor 4 receives an identification signal, causing the motor 4 to drive the drive shaft 5 to rotate. This causes the horizontally placed elliptical cam 52 to rotate to a vertical position within the slide groove 63 under the rotation of the drive shaft 5. The limit buckle 6, under the action of the cam 52, can press the elastic element 7 downwards. At the same time, the inclined wedge 62 can move synchronously to below the horizontal plane where the pin 3 is located, causing the inclined wedge 62 to disengage from the pin hole 31. The pin 3 can then be pulled out of the slot 21, completing the unlocking process.
[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.
Claims
1. An electric vehicle tailgate lock, comprising a housing, a pin, and a limiting mechanism disposed inside the housing, the limiting mechanism comprising a limiting buckle and an elastic element, the bottom end of the limiting buckle being movably disposed inside the housing via the elastic element, a slot being provided on the surface of the housing, the pin extending through the slot into the housing to engage with the limiting buckle, characterized in that: The housing is also equipped with an electric drive mechanism for controlling the up and down movement of the limit buckle. The electric drive mechanism includes a drive source and a drive shaft. The front end of the drive shaft is an elliptical cam. The side wall of the limit buckle is provided with a sliding groove that matches the cam. The cam is rotatably set in the sliding groove.
2. The electric vehicle tailgate lock according to claim 1, characterized in that: The housing includes a cover plate and a base. The slot is horizontally opened on the side wall of the cover plate, and the limiting buckle is disposed on one side of the slot by means of an elastic element that moves up and down.
3. The electric vehicle tailgate lock according to claim 2, characterized in that: One end of the pin has a pin hole, and the top of the limiting buckle has a limiting groove. The top of the limiting buckle forms a "U"-shaped groove structure through the limiting groove. One side of the limiting buckle can pass through the pin hole of the pin to form a horizontal limiting structure.
4. The electric vehicle tailgate lock according to claim 3, characterized in that: The side of the slot near the limiting buckle is a wedge, which is inclined toward one side of the slot.
5. A tailgate lock for an electric vehicle according to any one of claims 1-4, characterized in that: The drive source is a motor, and the output shaft of the motor is plugged into and fixed to the rear end of the drive shaft. The motor is fixedly connected inside the housing by a bracket.
6. The electric vehicle tailgate lock according to claim 5, characterized in that: The bracket has an internal mounting cavity that matches the motor. The mounting cavity has limiting notches on both sides of the end near the drive shaft. The middle side wall of the drive shaft has an outwardly protruding limiting protrusion. The limiting protrusion can swing between the two limiting notches.
7. A tailgate lock for an electric vehicle according to any one of claims 1-4, characterized in that: The elastic element is composed of a spring.