Helmet lock of electric vehicle
The electric bicycle helmet lock employs a motor-driven cam and Hall sensor to achieve automatic dual-locking and unlocking, addressing the lack of effective dual-locking mechanisms in existing systems, thereby enhancing security.
Patent Information
- Application Number
- CN202422008439.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-19
AI Technical Summary
The existing electric vehicle helmet locks are insufficiently safe and are easily lost, so they cannot achieve the double locking effect.
The motor drive cam is used to combine with Hall sensor to achieve automatic locking and unlocking, and double locking is achieved through the spring reaction force of the lock tongue.
Improve the safety of electric vehicle helmet locks and achieve double locking effect to prevent the loss of helmets.
Smart Images
Figure CN223104333U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of locks, and particularly relates to an electric vehicle helmet lock. Background Art
[0002] In order to ensure the safety of electric vehicle riding, it is essential to wear a helmet. In order to reduce the loss of helmets, helmet locks have emerged as the times require. Content of the Utility Model
[0003] The utility model solves the problems in the related art, and provides an electric vehicle helmet lock. By driving a cam in the forward rotation of a motor and cooperating with a corresponding Hall sensor, the functions of locking and automatic locking can be realized. Moreover, in the automatic locking state, when the helmet presses the lock tongue, the lock tongue will retract. When the lock hole of the helmet passes through the lock tongue, the lock tongue will be subjected to the reaction force of a spring and finally pop out to achieve the effect of automatic locking, thus achieving a double locking effect and greatly improving the safety.
[0004] In order to solve the above technical problems, the utility model is realized through the following technical solutions: an electric vehicle helmet lock, comprising a motor, a cam, a lock tongue, and a PCBA board. The output shaft of the motor is connected to the cam. Two cylindrical pins are arranged at one end of the cam close to the lock tongue. The lock tongue comprises two lock tongues and a lock tongue plate with a groove. The two lock tongues are installed on both sides of the lock tongue plate, and a spring is installed between the two lock tongues. The groove of the lock tongue plate is two rectangular grooves that are staggered in the direction of the lock tongue. The motor drives the cam to rotate so that the cylindrical pins move in the grooves of the lock tongue plate. A magnet is installed on one side of the lock tongue close to the PCBA board. The PCBA board is located below the lock tongue, and a Hall sensor is installed on the PCBA board.
[0005] As a preferred solution, the motor is installed in a motor housing. A waterproof ring is installed on the output shaft of the motor. A housing cover is installed on one side of the motor housing far from the output shaft of the motor, and sealant is applied at the joint between the housing cover and the motor housing.
[0006] As a preferred solution, it further comprises a lock housing, and an installation groove for installing the lock tongue and the spring is provided on the lock housing.
[0007] As a preferred solution, there are 3 Hall sensors, which are arranged side by side on the PCBA board close to the lock tongue.
[0008] As a preferred solution, the motor is connected to the main control board through an output wire.
[0009] As a preferred solution, the two corners on the side where the two grooves are away from each other are rounded corners.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: By driving the cam through the forward rotation of the motor and cooperating with the corresponding Hall sensors, the present utility model can achieve the locked state, automatic locking, and unlocking state. Moreover, in the automatic locking state, when the helmet presses the lock tongue, the lock tongue will retract. When the lock hole of the helmet passes through the lock tongue, the lock tongue will be ejected by the reaction force of the spring to achieve the effect of automatic locking, thus achieving a double locking effect and greatly improving the safety performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is the front view of the present utility model;
[0012] Figure 2 is the present utility model Figure 1 the A-A cross-sectional view in;
[0013] Figure 3 is the present utility model Figure 1 the B-B cross-sectional view in (locked state);
[0014] Figure 4 is the present utility model Figure 1 the B-B cross-sectional view in (automatic locking state);
[0015] Figure 5 is the present utility model Figure 1 the B-B cross-sectional view in (unlocking state);
[0016] Figure 6 is the right view of the present utility model;
[0017] Figure 7 is Figure 6 the C-C cross-sectional view in;
[0018] Figure 8 is the structural schematic diagram of the present utility model with the lock housing removed.
[0019] In the figure:
[0020] 1. Outer shell cover, 2. Motor housing, 3. Motor, 4. Waterproof ring, 5. Cam, 51. Cylindrical pin, 6. Lock tongue, 61. Lock tongue head, 62. Lock tongue plate, 621. Groove, 7. Spring, 8. Lock housing, 9. PCBA board, 10. Output wire, 11. Magnet, 121. First Hall sensor, 122. Second Hall sensor, 123. Third Hall sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present utility model and its application or use. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0023] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0024] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal", and "top, bottom" are usually based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Without contrary instructions, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present utility model; the orientation words "inner, outer" refer to the inside and outside relative to the contour of each component itself.
[0025] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the figure for the device. For example, if the device in the attached drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations are made for the spatial relative descriptions used here.
[0026] In addition, it should be noted that the use of words such as "first", "second" etc. to define components is only for the convenience of distinguishing the corresponding components. Without additional statements, the above words have no special meanings, and thus cannot be construed as limiting the protection scope of the present utility model.
[0027] As Figures 1 to 8 shown, an electric vehicle helmet lock includes a motor 3, a cam 5, a lock tongue 6, and a PCBA board 9. The output shaft of the motor 3 is connected to the cam 5. Two cylindrical pins 51 are provided at one end of the cam 5 close to the lock tongue 6. The lock tongue 6 includes two lock tongues 61 and a lock tongue plate 62 with a groove 621. The two lock tongues 61 are installed on both sides of the lock tongue plate 62, and a spring 7 is installed between the two lock tongues 61. The groove 621 of the lock tongue plate 62 is two rectangular grooves staggered in the direction of the lock tongue 61. The motor 3 drives the cam 5 to rotate so that the cylindrical pin 51 moves in the groove of the lock tongue plate 62. A magnet 11 is installed on one side of the lock tongue 61 close to the PCBA board 9. The PCBA board 9 is located below the lock tongue 6, and a Hall sensor is installed on the PCBA board 9.
[0028] In one embodiment, the motor 3 is installed in a motor housing 2. A waterproof ring 4 is installed on the output shaft of the motor 3. A housing cover 1 is installed on one side of the motor housing 2 away from the motor output shaft. A sealant is applied at the joint between the housing cover 1 and the motor housing 2 to obtain a better waterproof effect.
[0029] In one embodiment, it further includes a lock housing 8. An installation groove for installing the lock tongue 6 and the spring 7 is provided on the lock housing 8. The lock housing 8 and the motor housing 2 are directly connected by means of plugging and bolting. In addition, the PCBA board is installed at the bottom of the lock housing 8.
[0030] In one embodiment, as Figure 8As shown, there are three Hall sensors, namely the first Hall sensor 121, the second Hall sensor 122, and the third Hall sensor 123, which are arranged side by side on the PCBA board 9 close to one side of the lock tongue 6.
[0031] In one embodiment, the motor 3 is connected to the main control board through the output line 10, so as to receive signals from the main control board.
[0032] In one embodiment, in order to be adapted to the shape of the cylindrical pin 51, the two corners on the side where the two grooves 621 are away from each other are rounded. The cylindrical pin 51 and the groove 621 form a tangent combination. When the motor 3 drives the cam 5 to rotate, the cylindrical pin 51 moves along the inner wall of the groove 621, so that the lock tongue 61 makes a linear motion.
[0033] Working principle:
[0034] When the motor 3 receives the main control signal through the output line 10 and is in the locked state, the motor 3 rotates forward, and the magnet 11 on the lock tongue 6 will sense the first Hall sensor 121, and the motor 3 will stop immediately; when the motor 3 rotates backward, the magnet 11 on the lock tongue 6 will sense the second Hall sensor 122, and when the motor 3 stops at the automatic locking state position, when the helmet presses the lock tongue 6, the lock tongue 6 will retract. When the helmet lock hole passes through the lock tongue 6, the lock tongue 6 will be subjected to the reaction force of the spring 7 and finally pop out, so as to achieve the effect of automatic locking; when the motor 3 continues to rotate backward, the magnet 11 on the lock tongue 6 will sense the third Hall sensor 123, the motor 3 will stop in the unlocked state, and the lock tongue 6 will retract completely to achieve the unlocking effect.
[0035] The above is the preferred embodiment of the present invention. Those skilled in the art of the present invention can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the above specific embodiments. Any obvious improvements, substitutions or variations made by those skilled in the art on the basis of the present invention belong to the protection scope of the present invention.
Claims
1. An electric vehicle helmet lock, characterized in that: It includes a motor (3), a cam (5), a locking tongue (6), and a PCBA board (9). The output shaft of the motor (3) is connected to the cam (5). Two cylindrical pins (51) are provided at one end of the cam (5) close to the locking tongue (6). The locking tongue (6) includes two locking tongue heads (61) and a locking tongue plate (62) with a groove (621). The two locking tongue heads (61) are installed on both sides of the locking tongue plate (62), and a spring (7) is installed between the two locking tongue heads (61). The groove (621) of the locking tongue plate (62) is two rectangular grooves that are staggered in the direction of the locking tongue head (61). The motor (3) drives the cam (5) to rotate, so that the cylindrical pin (51) moves in the groove (621) of the locking tongue plate (62). A magnet (11) is installed on one side of the locking tongue head (61) close to the PCBA board (9). The PCBA board (9) is located below the locking tongue (6), and a Hall sensor is installed on the PCBA board (9).
2. The electric vehicle helmet lock according to claim 1, characterized in that: The motor (3) is installed in a motor housing (2). A waterproof ring (4) is installed on the output shaft of the motor (3). A housing cover (1) is installed on one side of the motor housing (2) away from the motor output shaft. Sealant is applied at the joint between the housing cover (1) and the motor housing (2).
3. The electric vehicle helmet lock according to claim 1, characterized in that: It further includes a lock housing (8). An installation groove for installing the locking tongue (6) and the spring (7) is provided on the lock housing (8).
4. The electric vehicle helmet lock according to claim 1, characterized in that: There are 3 Hall sensors, which are installed side by side on the PCBA board (9) close to the locking tongue (6).
5. The electric vehicle helmet lock according to claim 1, wherein: The motor (3) is connected to the main control board through an output line (10).
6. The electric vehicle helmet lock according to claim 1, wherein: The two corners on the side where the two grooves (621) are away from each other are rounded corners.