Electric door lock for electric vehicle

Abstract

The utility model discloses an electric door lock for an electric vehicle, and relates to the technical field of electric vehicle accessories, the electric door lock comprises a lock shell, a lock cylinder, a transmission rotating shaft and an electric appliance box wiring terminal, the lock cylinder and the transmission rotating shaft rotate synchronously, the electric door lock further comprises a rotating disc detachably arranged at the end, away from the lock cylinder, of the transmission rotating shaft in a sleeving mode, and the rotating disc and the transmission rotating shaft rotate synchronously; the rotating disc is provided with a power transmission piece which rotates synchronously, the power transmission piece is attached to the electric appliance box wiring terminal through a corresponding first spring, the power transmission piece is controlled to rotate so that the power transmission piece can make contact with or be separated from a contact pin of the electric appliance box wiring terminal, and at least one set of elastic limiting mechanism is arranged on the peripheral face of the rotating disc. The inner wall of the lock shell is provided with a plurality of protruding edges matched with the elastic limiting mechanism to achieve limiting of the rotating disc. The position control precision of the rotating disc is high, and electric contact is reliable.

Description

Technical Field

[0001] The present application relates to the technical field of electric vehicle accessories, and in particular to an electric door lock for an electric vehicle. Background Art

[0002] The electric door lock is the main component for ignition and shutdown of electric vehicles or motorcycles. It is mainly composed of a lock shell, a lock core assembly inside the lock shell, and an electrical box assembly at the rear. The vehicle user inserts the key to ignite or shut down the vehicle through the lock core assembly and the electrical box assembly. The lock position of the existing electric door lock usually only relies on the lock position function of the lock core for limiting. After long-term use, it is easy to cause poor contact between the moving contact and the static contact due to vibration. In order to make the vehicle's seat or fuel tank easy to open and reduce the key configuration, a driven pull-wire slider is usually set on the electric door lock to solve this problem. However, the existing electric door lock with a pull-wire slider is easy to cause screws to loosen due to vibration after long-term use, resulting in malfunction and affecting use. Utility Model Content

[0003] In view of this, the present application provides an electric door lock for an electric vehicle to solve the technical problems of poor contact and wire failure in existing electric door locks.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An electric door lock for an electric vehicle comprises a lock shell, a lock core, a transmission shaft and an electrical box terminal. The lock core and the transmission shaft rotate synchronously. The lock core and the transmission shaft also comprise a detachable rotating disk which is sleeved on an end of the transmission shaft away from the lock core. The rotating disk rotates synchronously with the transmission shaft. A synchronously rotating power transmission sheet is provided on the rotating disk. The power transmission sheet is fitted with the electrical box terminal by a corresponding first spring. The power transmission sheet is controlled to rotate so as to contact or separate from the contact pins of the electrical box terminal. At least one set of elastic limiting mechanisms is provided on the outer peripheral surface of the rotating disk. A plurality of convex ridges which cooperate with the elastic limiting mechanisms to limit the rotating disk are provided on the inner wall of the lock shell.

[0006] Furthermore, the lock core and the transmission shaft, as well as the rotating disk and the transmission shaft, are connected by using the concave and convex parts to cooperate with each other.

[0007] Furthermore, a strip hole with a symmetrical shape is provided at the center of the power transmission plate, and the rotating disk has a limiting shaft which is sleeved and matched with the strip hole.

[0008] Furthermore, a mounting hole is provided on the outer circumferential surface of the rotating disk, and the elastic limiting mechanism includes a second spring and a ball placed in the mounting hole, and the ball is in conflict with the inner wall of the lock housing.

[0009] Furthermore, a fan-shaped limiting protrusion is provided on the transmission shaft, and an arc surface matching with the limiting protrusion is provided on the inner wall of the lock housing.

[0010] Furthermore, a static contact piece is provided on the electrical box terminal, one end of the static contact piece is plugged in and installed, and the other end of the static contact piece is bent to form a contact foot, and the angle between the bent end of the static contact piece and the end face of the electrical box terminal is in the range of 15° to 30°.

[0011] Furthermore, it also includes a wire pull slider arranged on the lock shell, and a third spring for driving the wire pull slider to return to its original position is arranged between the wire pull slider and the lock shell. The toggle arm of the transmission shaft can toggle the wire pull slider to slide to unlock the lock corresponding to the wire.

[0012] Furthermore, a limit hook and a boss are provided on the wire pull slider, and a notch is provided on the shell wall of the lock shell. The limit hook and the boss are both located in the notch. The limit hook is used to abut against the edge of the notch to limit the movement stroke of the wire pull slider, and the toggle arm drives the wire pull slider to slide by toggling the boss.

[0013] It can be seen from the above technical solution that the advantages of the utility model are:

[0014] 1. In the present application, an elastic locking member is formed by the cooperation of an elastic limiting mechanism and a plurality of convex ridges. A guide groove for automatically guiding the elastic limiting mechanism is formed between adjacent convex ridges, so that the position of the rotating disk is limited more accurately, the transmission accuracy requirements of the rotating disk and the transmission shaft are low, and the processing difficulty of the parts is reduced.

[0015] 2. In the present application, the first spring is used to push the power transmission sheet to contact the contact pins of the electrical box terminal, and the spring thrust is used to ensure reliable contact.

[0016] 3. The contact pins on the wiring terminals of the electrical box in this application are raised, making the electrical connection more reliable.

[0017] 4. The lock core and the transmission shaft, as well as the rotating disk and the transmission shaft in the present application are connected by means of concave and convex parts, making the structure compact. Transmission shafts of different lengths can be replaced according to the length of the lock shell, so that the parts between different products have a certain degree of commonality.

[0018] 5. The wire pull slider in the present application will not directly hit the wire pull slider fixing plate under the action of the limit hook, thereby reducing the vibration of the wire pull slider fixing plate, so that the wire pull slider fixing plate can be reliably installed for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0020] Figure 1 This is a schematic diagram of the first structure of this application Figure 1 .

[0021] Figure 2 This is a schematic diagram of the first structure of this application Figure 2 .

[0022] Figure 3 This is a schematic front view of the first structure of the present application.

[0023] Figure 4 for Figure 3 BB direction cross-sectional view.

[0024] Figure 5 for Figure 3 CC direction section view.

[0025] Figure 6 This is a schematic diagram of the internal structure of the first structure of this application.

[0026] Figure 7 This is a schematic structural diagram of a lock housing of the first structure of the present application.

[0027] Figure 8 This is a schematic structural diagram of a lock housing of the second structure of the present application.

[0028] Explanation of the accompanying drawings: 1-lock housing, 11-convex ridge, 12-notch, 2-lock cylinder, 3-transmission shaft, 31-sliding arm, 32-limiting convex, 4-rotating disk, 41-limiting shaft, 5-first spring, 6-transmission plate, 7-electrical box terminal, 8-wire slider, 81-boss, 82-limiting hook, 83-wire groove, 9-wire slider fixing plate, 10-elastic limiting mechanism, 101-second spring, 102-ball, 20-third spring. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the implementation modes and the accompanying drawings. Here, the illustrative implementation modes and descriptions of the present application are used to explain the present application, but are not intended to limit the present application.

[0030] refer to Figures 1 to 8 ,like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the present embodiment provides an electric door lock for an electric vehicle, comprising a lock shell 1, a lock core 2, a transmission shaft 3 and an electrical box terminal 7. The lock core 2 and the transmission shaft 3 are both installed in the lock shell 1, and the lock core 2 and the transmission shaft 3 rotate synchronously. A detachable rotating disk 4 is sleeved on the end of the transmission shaft 3 away from the lock core 2. The rotating disk 4 rotates synchronously with the transmission shaft 3. A synchronously rotating power transmission sheet 6 is provided on the rotating disk 4. The electrical box terminal 7 is engaged with the lock shell 1 to confine the rotating disk 4 in the lock shell 1. The power transmission sheet 6 is fitted with the electrical box terminal 7 by a corresponding first spring 5. The lock core 2 is controlled to rotate to drive the power transmission sheet 6 to rotate so that the power transmission sheet 6 contacts or separates with the contact pins of the electrical box terminal 7. At least one group of elastic limiting mechanisms 10 is provided on the outer peripheral surface of the rotating disk 4, and a plurality of convex ridges 11 are provided on the inner wall of the lock shell 1 to cooperate with the elastic limiting mechanism 10 to achieve the limiting of the rotating disk 4.

[0031] Specifically, both sides of the convex ridge 11 have arc-shaped guiding surfaces. When in the locked position, the elastic limiting mechanism 10 and the connected convex ridges 11 are in contact to achieve precise and stable positioning. The automatic guiding of the arc-shaped surface can reduce the matching accuracy between the rotating disk 4 and the transmission shaft 3, and between the transmission shaft 3 and the lock cylinder 2, and can avoid the shaking of the rotating disk 4 causing poor contact. The end surface of the rotating disk 4 has a corresponding blind hole that matches the first spring 5. The power transmission sheet 6 is in a strip shape. The first spring 5 that abuts against the power transmission sheet 6 has two strips, and the contact position of the first spring 5 corresponds to the contact position of the power transmission sheet 6, which improves the strength at the contact point and makes the electrical contact more stable and reliable. The elastic limiting mechanism 10 can also increase the force between the rotating disk 4 and the inner wall of the lock shell 1, and increase the connection effect between the rotating disk 4 and the lock shell 1. The power transmission sheet 6 is made of conductive metal.

[0032] In the embodiment of the present application, the lock core 2 and the transmission shaft 3, as well as the rotating disk 4 and the transmission shaft 3, are connected by using the concave-convex parts. The rigid connection by using the concave-convex parts makes the linkage performance stable, and can match the lock core 2, the transmission shaft 3 and the rotating disk 4 of different sizes according to the electric door locks of different specifications, so that the parts of the products of different specifications have a certain commonality, reduce the types of parts, and make the electric door lock assembly simpler.

[0033] Specifically, the convex shaft portion of the concave-convex portion matching structure is a cylindrical shaft with two symmetrical sections cut on the cylindrical shaft, which simplifies processing and enables the parts to be installed symmetrically, making it convenient to install and use the parts on electric door locks in different directions.

[0034] In the embodiment of the present application, a symmetrical strip hole is provided at the center of the power transmission sheet 6, and the rotating disk 4 has a limit shaft 41 that is sleeved and matched with the strip hole. The shape of the limit shaft 41 is the same as the structure of the convex shaft part in the concave-convex part matching structure, and the limit shaft 41 can pass through the electrical box terminal 7 to prevent the power transmission sheet 6 from being separated from the limit shaft 41.

[0035] In the embodiment of the present application, a mounting hole is provided on the outer circumference of the rotating disk 4, and the elastic limiting mechanism 10 includes a second spring 101 and a ball 102 placed in the mounting hole, and the ball 102 is in conflict with the inner wall of the lock housing 1. The structure of the ball 102 and the second spring 101 is relatively durable, and the second spring 101 and the ball 102 can be directly purchased, which reduces the production cost, and the ball 102 has a better adaptive positioning effect when locking, and the rolling friction also reduces wear and has a long service life.

[0036] In the embodiment of the present application, a sector-shaped limiting protrusion 32 is further provided on the transmission shaft 3, and an arc surface matching the limiting protrusion 32 is provided on the inner wall of the lock housing 1. The limiting protrusion 32 can limit the rotation angle range of the transmission shaft 3, thereby limiting the rotation angle range of the rotating disk 4, and preventing the excessive rotation of the rotating disk 4 from causing the power transmission sheet 6 to accidentally contact the contact pins of the electrical box terminal 7, which is highly safe to use. The sector-shaped limiting protrusion 32 can improve the strength of the installation of the limiting protrusion 32 of the transmission shaft 3, and is not easy to deform.

[0037] In the embodiment of the present application, a static contact piece is provided on the electrical box terminal 7, one end of the static contact piece is plugged in and installed, and the other end of the static contact piece is bent to form a contact foot, and the angle between the bent end of the static contact piece and the end face of the electrical box terminal 7 is in the range of 15° to 30°.

[0038] Specifically, when connection is required, the transmission sheet 6 slides along the bent arm of the stationary contact sheet from the root to the raised portion. During the sliding process, the elastic force of the first spring 5 gradually increases, thereby making the electrical contact between the transmission sheet 6 and the contact pin more reliable.

[0039] The embodiments of the present application include two structures. One structure is an electric door lock for an electric vehicle that cannot control the corresponding lock by controlling the pull wire. The structure of the lock housing 1 is as follows: Figure 8 As shown, the electric door lock includes a lock shell 1, a lock core 2, a transmission shaft 3 and an electrical box terminal 7. The lock core 2 and the transmission shaft 3 are both installed in the lock shell 1, and the lock core 2 and the transmission shaft 3 rotate synchronously. A detachable rotating disk 4 is sleeved on the end of the transmission shaft 3 away from the lock core 2. The rotating disk 4 rotates synchronously with the transmission shaft 3. A synchronously rotating power transmission piece 6 is provided on the rotating disk 4. The electrical box terminal 7 is engaged with the lock shell 1 to limit the rotating disk 4 in the lock shell 1. The power transmission piece 6 is fitted with the electrical box terminal 7 using a corresponding first spring 5. The power transmission piece 6 is driven to rotate by controlling the rotation of the lock core 2 so that the power transmission piece 6 contacts or separates with the contact pins of the electrical box terminal 7. At least one group of elastic limiting mechanisms 10 is provided on the outer peripheral surface of the rotating disk 4. A plurality of convex ridges 11 that cooperate with the elastic limiting mechanisms 10 to achieve the limiting of the rotating disk 4 are provided on the inner wall of the lock shell 1. Another structure is an electric door lock for electric vehicles that can control the corresponding lock by controlling the pull wire. The structure of the lock shell 1 is as shown in FIG. Figure 7As shown, the electric door lock includes a lock shell 1, a lock core 2, a transmission shaft 3, an electrical box terminal 7 and a pull-wire slider 8. The lock core 2 and the transmission shaft 3 are both installed in the lock shell 1, and the lock core 2 and the transmission shaft 3 rotate synchronously. A detachable rotating disk 4 is sleeved on the end of the transmission shaft 3 away from the lock core 2. The rotating disk 4 rotates synchronously with the transmission shaft 3. A synchronously rotating power transmission sheet 6 is provided on the rotating disk 4. The electrical box terminal 7 is engaged with the lock shell 1 to confine the rotating disk 4 in the lock shell 1. The power transmission sheet 6 is fitted with the electrical box terminal 7 by the corresponding first spring 5. The lock core 2 is controlled to rotate to drive the power transmission sheet 6 to rotate so that the power transmission sheet 6 contacts the contact pins of the electrical box terminal 7. Or separation, at least one group of elastic limiting mechanisms 10 is provided on the outer peripheral surface of the rotating disk 4, and a plurality of convex ridges 11 are provided on the inner wall of the lock shell 1 to cooperate with the elastic limiting mechanism 10 to realize the limiting of the rotating disk 4. The wire pull slider 8 is slidably set in the slide groove of the lock shell 1, and the wire pull slider fixing plate 9 connected to the lock shell 1 by screws restricts the wire pull slider 8 in the slide groove. A notch 12 is provided on the side wall of the lock shell 1 corresponding to the slide groove position, and the toggle arm 31 of the transmission shaft 3 can pass through the notch 12 to toggle the wire pull slider 8 to slide to unlock the lock corresponding to the wire. A third spring 20 for driving the wire pull slider 8 to reset is provided between the wire pull slider 8 and the lock shell 1, and the wire pull slider 8 has a wire passing groove 83 for the wire to pass through.

[0040] For electric vehicle electric door locks that can control the pull wire to control the corresponding lock, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, a limit hook 82 and a boss 81 are provided on the wire pulling slider 8, and both the limit hook 82 and the boss 81 are located in the notch 12. The limit hook 82 is used to abut against the edge of the notch 12 to limit the movement stroke of the wire pulling slider 8. The toggle arm 31 to toggle the boss 81 to slide the wire pulling slider 8, which can prevent the wire pulling slider 8 from directly hitting the wire pulling slider fixing plate 9, causing the screws to loosen easily and causing wire pulling failure.

[0041] The structure and working principle of the lock core 2 and the specific structure of the wire slider 8 in the present application can refer to the electric door lock in the prior art.

[0042] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the embodiments of the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electric door lock for an electric vehicle, comprising a lock housing (1), a lock core (2), a transmission shaft (3) and an electrical box terminal (7), wherein the lock core (2) and the transmission shaft (3) rotate synchronously, and wherein: The lock body (1) further comprises a rotating disk (4) which is detachably sleeved on an end of the transmission shaft (3) away from the lock cylinder (2), the rotating disk (4) rotating synchronously with the transmission shaft (3), a synchronously rotating power transmission sheet (6) being provided on the rotating disk (4), the power transmission sheet (6) being in contact with the electrical box terminal (7) by means of a corresponding first spring (5), the power transmission sheet (6) being controlled to rotate so that the power transmission sheet (6) and the contact pins of the electrical box terminal (7) are in contact or separated, at least one set of elastic limiting mechanisms (10) being provided on the outer peripheral surface of the rotating disk (4), and a plurality of convex ridges (11) cooperating with the elastic limiting mechanisms (10) to limit the rotating disk (4) being provided on the inner wall of the lock housing (1).

2. The electric door lock for an electric vehicle according to claim 1, characterized in that: The lock core (2) and the transmission shaft (3) as well as the rotating disk (4) and the transmission shaft (3) are connected by means of concave and convex parts.

3. The electric door lock for an electric vehicle according to claim 1, characterized in that: A symmetrical strip-shaped hole is provided at the centre of the power transmission plate (6), and the rotating disk (4) has a limiting shaft (41) which is sleeved and matched with the strip-shaped hole.

4. The electric door lock for an electric vehicle according to claim 1, characterized in that: A mounting hole is provided on the outer peripheral surface of the rotating disk (4), and the elastic limiting mechanism (10) comprises a second spring (101) and a ball (102) placed in the mounting hole, wherein the ball (102) contacts the inner wall of the lock housing (1).

5. The electric door lock for an electric vehicle according to claim 1, characterized in that: The transmission shaft (3) is also provided with a sector-shaped limiting protrusion (32), and the inner wall of the lock housing (1) is provided with an arc surface that matches the limiting protrusion (32).

6. The electric door lock for an electric vehicle according to claim 1, characterized in that: The electrical box terminal (7) is provided with a static contact piece, one end of which is plugged and installed, and the other end of which is bent to form a contact pin, and the angle between the bent end of the static contact piece and the end face of the electrical box terminal (7) is in the range of 15° to 30°.

7. The electric door lock for an electric vehicle according to claim 1, characterized in that: It also includes a wire-pulling slider (8) disposed on the lock housing (1), a third spring (20) for driving the wire-pulling slider (8) to return to its original position is disposed between the wire-pulling slider (8) and the lock housing (1), and a toggle arm (31) of the transmission shaft (3) can toggle the wire-pulling slider (8) to slide and unlock the lock corresponding to the wire pull.

8. The electric door lock for an electric vehicle according to claim 7, characterized in that: The wire-pull slider (8) is provided with a limit hook (82) and a boss (81), and a notch (12) is provided on the wall of the lock shell (1). The limit hook (82) and the boss (81) are both located in the notch (12). The limit hook (82) is abutted against the edge of the notch (12) to limit the movement stroke of the wire-pull slider (8), and the toggle arm (31) toggle the boss (81) to slide the wire-pull slider (8).

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