Automotive electric door lock

Abstract

The utility model provides a kind of automobile electric door lock, comprising: mounting plate, lock tongue, lock stop, gear plate, the lock tongue and lock stop are respectively installed in the side of mounting plate by first shaft body and third shaft body, the gear plate is installed in the other side of mounting plate by fifth shaft body;The mounting plate is equipped with first arc hole and second arc hole, the second shaft body is fixedly arranged on the lock tongue, the second shaft body passes from first arc hole, and second shaft body extends into the arc slot on gear plate, the fourth shaft body is fixedly arranged on the lock stop.This utility model is driven gear plate rotation by motor, to drive automobile electric door lock realizes self-suction, electric opening and other functions, when self-suction, second shaft body is pushed by push plate, when abnormal, after first connecting rod is loosened, emergency unlocking can be realized, to greatly simplify the structure of door lock, so that door lock volume reduces, meet the installation of different vehicle models, improve the versatility of door lock.

Description

Technical Field

[0001] This utility model relates to the field of automotive door lock technology, and in particular to an electric automotive door lock. Background Technology

[0002] With the development of the automotive industry, passengers are becoming increasingly knowledgeable about automobiles and have higher and higher demands for vehicle comfort and intelligence. Electric sliding doors are gradually being adopted in various vehicles, including the sliding doors of MPVs. Consequently, electric sliding doors require corresponding electric door locks. The main functions of electric door locks currently include electric suction and electric opening. When closing the door, simply close it gently, leaving the lock in a semi-locked state. Then, the motor inside the electric door lock drives the bolt to rotate, fully locking the door. The electric opening function uses a motor to drive an internal mechanism to unlock the door, making it easier to open. Currently available electric car door locks suffer from the following technical shortcomings: ① The extensive use of multi-link and multi-gear structures in current designs results in generally large locks, especially in width, making them unsuitable for many compact car doors; ② Due to the inability to miniaturize their size, many electric door locks are designed to fit the space reserved in the car door design, resulting in locks that are only compatible with one type of car model, lacking versatility. If the car model changes, a complete redesign is necessary; ③ Most electric car door locks lack emergency devices. If a power failure occurs during the locking process, the lock cannot reset, preventing unlocking and door opening, posing a serious safety hazard. Therefore, a new type of electric car door lock is needed that, while achieving self-locking and electric unlocking functions, reduces size, offers high versatility, and includes an emergency unlocking device to enhance safety redundancy. Utility Model Content

[0003] To address the aforementioned issues, this utility model proposes an electric car door lock that, while achieving self-closing and electric opening functions, reduces the size of the electric door lock, enhances its versatility, and incorporates an emergency unlocking device to improve safety redundancy.

[0004] This utility model is achieved through the following technical solution:

[0005] This utility model proposes an electric car door lock, comprising: a mounting plate, a latch, a lock stop, and a gear plate. The latch and lock stop are respectively mounted on one side of the mounting plate via a first shaft and a third shaft, and the gear plate is mounted on the other side of the mounting plate via the first shaft. The mounting plate has a first arc-shaped hole and a second arc-shaped hole. A second shaft is fixedly mounted on the latch, passing through the first arc-shaped hole and extending into an arc-shaped groove on the gear plate. A fourth shaft is fixedly mounted on the lock stop, passing through the second arc-shaped hole. A push plate is provided on one side of the arc-shaped groove on the gear plate, and a first connecting rod is provided on the mounting plate. When the gear plate rotates, one end of the first connecting rod abuts against one end of the push plate.

[0006] Furthermore, the mounting plate is provided with a manual unlocking slider, which is slidably mounted on the mounting plate. One end of the manual unlocking slider is connected to the emergency unlocking handle on the door via a pull rope, and the other end of the manual unlocking slider is connected to the fourth shaft.

[0007] Furthermore, the mounting plate has a second connecting rod, one end of which is connected to the fourth shaft, and the other end of which abuts against one side of the end of the first connecting rod. The middle part of the second connecting rod is connected to the mounting plate through the third shaft.

[0008] Furthermore, the mounting plate has an automatic unlocking slider, which is slidably mounted on the mounting plate. One end of the automatic unlocking slider is connected to the manual unlocking slider. When the gear plate rotates, the other end of the automatic unlocking slider presses against one side of the gear plate.

[0009] Furthermore, both the end of the push plate and the end of the second connecting rod are provided with rollers. The push plate is connected to the first connecting rod through the rollers, and the second connecting rod is connected to the first connecting rod through the rollers.

[0010] Furthermore, the first link, the second link, and the push plate are all equipped with return springs.

[0011] Furthermore, the mounting plate has a lower housing at its lower part, the locking tongue and the locking stop are installed between the lower housing and the mounting plate, and the lower housing also has an insert.

[0012] Furthermore, the lower housing is connected to the vehicle door via a connecting plate, and a limiting protrusion corresponding to the shape of the outer side of the lower housing is provided on one side of the connecting plate.

[0013] Furthermore, the mounting plate is provided with a motor mounting plate, on which a motor and a reducer are mounted. The motor is connected to the reducer, and the reducer is connected to a gear plate through gears.

[0014] Furthermore, the latch and gear plate are provided with protrusions, and the mounting plate is provided with micro switches. When the latch and gear plate rotate, the latch and gear plate press against different micro switches through the protrusions.

[0015] The beneficial effects of this utility model are as follows: the motor drives the gear plate to rotate, thereby driving the car electric door lock to realize functions such as self-priming and electric opening. During self-priming, the push plate pushes the second shaft. In case of abnormality, the first linkage can be released to achieve emergency unlocking, which greatly simplifies the structure of the door lock, reduces the size of the door lock, meets the installation requirements of different car models, and improves the versatility of the door lock. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram illustrating the installation of the locking tongue and locking stop of this utility model;

[0018] Figure 3 This is a schematic diagram of the gear plate of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the present invention in its fully open state;

[0020] Figure 5 This is a schematic diagram of the mounting plate of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the present invention in its fully locked state;

[0022] Figure 7 This is a schematic diagram of the structure of the present invention in the emergency unlocking state;

[0023] Figure 8 This is a schematic diagram showing the connection between the locking tongue and the gear plate of this utility model;

[0024] In the diagram: 1-Mounting plate, 101-First arc-shaped hole, 102-Second arc-shaped hole, 2-Lock tongue, 201-First shaft, 202-Second shaft, 3-Lock stop, 301-Third shaft, 302-Fourth shaft, 4-Gear plate, 403-Arc-shaped groove, 404-Push plate, 5-First connecting rod, 6-Manual unlocking slider, 7-Pull rope, 8-Second connecting rod, 9-Automatic unlocking slider, 10-Lower housing, 11-Insert, 12-Connecting plate, 13-Motor mounting plate, 14-Motor, 15-Reducer, 16-Micro switch. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Throughout the description, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include at least one of the stated features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0028] like Figures 1 to 8 As shown, an embodiment of this utility model provides an electric car door lock, including: a mounting plate 1, a latch 2, a lock stop 3, and a gear plate 4. The latch 2 and the lock stop 3 are respectively mounted on one side of the mounting plate 1 via a first shaft 201 and a third shaft 301, and the gear plate 4 is mounted on the other side of the mounting plate 1 via the first shaft 201. The mounting plate 1 is provided with a first arc-shaped hole 101 and a second arc-shaped hole 102. A second shaft 202 is fixedly provided on the latch 2, passing through the first arc-shaped hole 101 and extending into the arc-shaped groove 403 on the gear plate 4. A fourth shaft 302 is fixedly provided on the lock stop 3, passing through the second arc-shaped hole 102. A push plate 404 is provided on one side of the arc-shaped groove 403 on the gear plate 4. The push plate 404 is connected to the mounting plate 1 via a rotating shaft. A first connecting rod 5 is provided on the mounting plate 1. When the gear plate 4 rotates, one end of the first connecting rod 5 abuts against one end of the push plate 404.

[0029] like Figure 4 , Figure 6As shown, during the electric closing process of the car door, due to inertia, the latch on the car pushes the latch 2 to the half-lock position. The protrusion on the latch 2 presses against the corresponding micro switch. After the controller obtains that the latch 2 has changed from fully open to half-locked, according to the preset program, the motor 14 starts to rotate. The motor 14 drives the gear plate 4 to rotate together through the reducer 15. The gear plate 4 then pushes the second shaft 202 through the arc groove 403 on the gear plate 4, causing the latch 2 and the gear plate 4 to rotate together, thereby hooking the latch on the car and pulling the car door to gradually close. When one end of the push plate 404 on the gear plate 4 is fixed on the first connecting rod 5, the push plate 404 can no longer rotate with the gear plate 4. At this time, the push plate 404 can only rotate around the central pivot. After the push plate 404 rotates, the other side of the push plate 404 will press against the side door of the second shaft 202, causing the second shaft 202 to rotate faster. When the second shaft 202 rotates faster, the second shaft 202 is mainly separated from the end of the arc groove 403 by the pushing force of the push plate 404, thus reserving the space required for emergency unlocking. Driven by the push plate 404, the second shaft 202 drives the lock tongue 2 to rotate. The lock stop 3 presses against one side of the lock tongue 2. At this time, the lock tongue 2 rotates to the fully locked state. After the lock tongue 2 presses against the corresponding micro switch 16, the controller receives the signal and controls the motor 14 to stop, completing the electric suction closing operation.

[0030] During the first half of the electric closing process, the latch 2 mainly drives the second shaft 202 through the fourth shaft 302. When the gear plate 4 rotates to a certain angle, the latch 2 also rotates to the same angle. During the second half of the electric closing process, the second shaft 202 is mainly pushed by the push plate 404. The second shaft 202 is pushed by the push plate 404, and at the same time, when the gear plate 4 rotates, it also acts on the second shaft 202 through the push plate 404. When the gear plate 4 rotates to a certain angle, the angle of rotation of the latch 2 will be greater than the angle of rotation of the gear plate 4. Therefore, a smaller gear plate 4 can be used as one of the largest rotating parts in the door lock. The reduction of the gear plate 4 reduces the size of the door lock and improves the versatility of the door lock.

[0031] like Figure 4 As shown, when the electric door is opened, after the controller receives the instruction, it controls the motor 14 to reverse. At this time, the gear plate 4 also rotates synchronously. After the gear plate 4 rotates, it contacts the automatic unlocking slider 9. At this time, the gear plate 4 pushes the fourth shaft 302 through the automatic unlocking slider 9, so that the lock stop 3 rotates. When the lock stop 3 separates from the lock tongue 2, the lock tongue 2 is unlocked. At this time, the door can be pushed to open the door.

[0032] When the door lock encounters a sudden power outage or other unexpected situation during the engagement process, the gear plate 4 will be jammed because the motor stops rotating. At this time, there are two possible situations:

[0033] In the first scenario, the gear plate 4 pushes against the second shaft 202 through the arc groove 403, causing the latch 2 to rotate. In this case, by designing parameters such as the shape of the latch 2, the relative position of the second shaft 202 on the latch 2, and the distance between the first connecting rod 5 and the push plate 404, the latch 2 will not completely jam the bolt when the gear plate 4 directly drives the second shaft 202 to move through the arc groove 403. That is, when the motor is jammed at this point, the car door can be pushed open directly without pulling the emergency unlocking handle.

[0034] The second scenario is that the push plate 404 on the gear plate 4 is deflected after being pushed by the first connecting rod 5. In this case, the second shaft 202 mainly obtains thrust through the push plate 404, such as... Figure 6 , Figure 7 As shown, when the car door stops rotating at this stage, pulling the cable via the emergency unlocking handle on the car door causes the manual unlocking slider 6 to slide. After the manual unlocking slider 6 slides, it drives the fourth shaft 302 to move, thereby causing the lock stop 3 to deflect and prevent the lock stop 3 from blocking the lock tongue 2. The manual unlocking slider 6 also drives the second link 8 to rotate. After the second link 8 rotates, it drives the first link 5 to rotate. After the first link 5 rotates, the end of the first link 5 that is blocking the push plate 404 also deflects. After deflection, the push plate 404, without the support of the first link 5, returns to its original position under the action of the return spring, thereby releasing the second shaft 202. At this time, the lock tongue 2, without the constraint of the lock stop 3 and the gear plate 4, can rotate freely, realizing emergency unlocking.

[0035] In one specific embodiment, the mounting plate 1 is provided with a manual unlocking slider 6, which is slidably mounted on the mounting plate 1. One end of the manual unlocking slider 6 is connected to the emergency unlocking handle on the door via a pull rope 7, and the other end of the manual unlocking slider 6 is connected to the fourth shaft 302. When the manual unlocking slider 6 is pulled by the pull rope 7, it causes the fourth shaft 302 to deflect, thereby causing the lock stop 3 to rotate, so that the lock stop 3 separates from the lock tongue 2, preventing the lock stop 3 from pressing against the lock tongue 2. It is connected to the fourth shaft 302 through a larger connecting hole, or through a rotatable connecting rod, so that the manual unlocking slider 6 moving in a straight line can also drive the fourth shaft 302 moving in an arc, so that the two components can be smoothly linked.

[0036] Specifically, the second connecting rod 8 is mounted on the mounting plate 1. One end of the second connecting rod 8 is connected to the fourth shaft 302, and the other end of the second connecting rod 8 abuts against one side of the end of the first connecting rod 5. The middle part of the second connecting rod 8 is connected to the mounting plate 1 through the third shaft 301, so that when the second connecting rod 8 rotates, it can drive the locking stop 3 to rotate synchronously. Figure 6 , Figure 7As shown, when the manual unlocking slider 6 is pulled urgently, it will drive the second link 8 to rotate, thereby causing the first link 5 to deflect through the second link 8, so that the first link 5 separates from the push plate 404. After the push plate 404 loses its support, it will release the second shaft 202, so that the second shaft 202 can move in the arc groove 403, so that the latch 2 can release the latch and realize emergency door opening.

[0037] In a preferred embodiment, an automatic unlocking slider 9 is mounted on the mounting plate 1. The automatic unlocking slider 9 is slidably mounted on the mounting plate 1. One end of the automatic unlocking slider 9 is connected to the manual unlocking slider 6. When the gear plate 4 rotates, the other end of the automatic unlocking slider 9 presses against one side of the gear plate 4. When unlocking electrically, the gear plate 4 reverses and presses against the automatic unlocking slider 9. The automatic unlocking slider 9 pushes the fourth shaft 302 to move, thereby causing the lock stop 3 to deflect, releasing the lock tongue 2, and realizing unlocking.

[0038] Specifically, rollers are provided at the ends of the push plate 404 and the second link 8. The push plate 404 is connected to the first link 5 through the rollers, and the second link 8 is connected to the first link 5 through the rollers. Since the second link 8 and the first link 5, and the push plate 404 and the first link 5, need to move relative to each other, the rollers can reduce friction, so that the components can move smoothly together, while reducing wear and improving the service life of the door lock.

[0039] In a preferred embodiment, the first link 5, the second link 8, and the push plate 404 are all equipped with return springs, so that the first link 5 and the second link 8 can reset themselves after the pull rope 7 is released. When the push plate 404 is not pressing against the first link 5, the push plate 404 deflects outward to avoid the push plate 404 affecting the movement of the second shaft 202.

[0040] Specifically, the mounting plate 1 has a lower housing 10 at its lower part. The locking tongue 2 and the locking stop 3 are installed between the lower housing 10 and the mounting plate 1. The lower housing 10 limits the lower part of the first shaft 201 and the third shaft 301 to ensure the smooth rotation of the locking tongue 2 and the locking stop 3. The lower housing 10 is also provided with an insert 11 to prevent foreign objects from entering the lower housing 10 and improve reliability.

[0041] In a preferred embodiment, the lower housing 10 is connected to the car door via a connecting plate 12. One side of the connecting plate 12 is provided with a limiting protrusion corresponding to the outer shape of the lower housing 10. The entire electric door lock is mainly connected to the car door via the connecting plate 12. Therefore, for different car models, only different connecting plates 12 need to be developed to adapt them, which improves the versatility of the electric door lock.

[0042] In a preferred embodiment, the mounting plate 1 is provided with a motor mounting plate 13, on which a motor 14 and a reducer 15 are mounted. The motor 14 is connected to the reducer 15, and the reducer 15 is connected to the gear plate 4 through gears. The motor 14 serves as a power source to drive the gear plate 4 to rotate.

[0043] Preferably, the locking tongue 2 and the gear plate 4 are provided with protrusions, and the mounting plate 1 is provided with micro switches 16. When the locking tongue 2 and the gear plate 4 rotate, the locking tongue 2 and the gear plate 4 press against different micro switches 16 through the protrusions, so that the controller can determine the position of the locking tongue 2 and the gear plate 4 by turning on different micro switches.

[0044] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. An electric door lock for automobiles, characterized in that, include: The mounting plate (1), latch (2), lock stop (3), and gear plate (4) are provided. The latch (2) and lock stop (3) are mounted on one side of the mounting plate (1) via a first shaft (201) and a third shaft (301), respectively. The gear plate (4) is mounted on the other side of the mounting plate (1) via a first shaft (201). The mounting plate (1) is provided with a first arc-shaped hole (101) and a second arc-shaped hole (102). A second shaft (202) is fixedly provided on the latch (2). The second shaft (202) extends from the first arc-shaped hole (101) to the gear plate (4). A second shaft (202) passes through an arc-shaped hole (101) and extends into an arc-shaped groove (403) on the gear plate (4). A fourth shaft (302) is fixedly installed on the locking stop (3), and the fourth shaft (302) passes through the second arc-shaped hole (102). A push plate (404) is provided on one side of the arc-shaped groove (403) on the gear plate (4). A first connecting rod (5) is provided on the mounting plate (1). When the gear plate (4) rotates, one end of the first connecting rod (5) abuts against one end of the push plate (404).

2. The electric door lock for automobiles according to claim 1, characterized in that, The mounting plate (1) is provided with a manual unlocking slider (6), which is slidably mounted on the mounting plate (1). One end of the manual unlocking slider (6) is connected to the emergency unlocking handle on the car door via a pull rope (7), and the other end of the manual unlocking slider (6) is connected to the fourth shaft (302).

3. The electric door lock for automobiles according to claim 2, characterized in that, The second connecting rod (8) is on the mounting plate (1). One end of the second connecting rod (8) is connected to the fourth shaft (302), and the other end of the second connecting rod (8) abuts against one side of the end of the first connecting rod (5). The middle part of the second connecting rod (8) is connected to the mounting plate (1) through the third shaft (301).

4. The electric door lock for automobiles according to claim 3, characterized in that, The automatic unlocking slider (9) is mounted on the mounting plate (1). The automatic unlocking slider (9) is slidably mounted on the mounting plate (1). One end of the automatic unlocking slider (9) is connected to the manual unlocking slider (6). When the gear plate (4) rotates, the other end of the automatic unlocking slider (9) pushes against one side of the gear plate (4).

5. A car electric door lock according to claim 4, characterized in that, Rollers are provided at the ends of the push plate (404) and the second link (8). The push plate (404) is connected to the first link (5) through the rollers, and the second link (8) is connected to the first link (5) through the rollers.

6. A car electric door lock according to claim 5, characterized in that, The first link (5), the second link (8), and the push plate (404) are all equipped with return springs.

7. The electric door lock for automobiles according to claim 1, characterized in that, The mounting plate (1) has a lower housing (10) at its lower part. The locking tongue (2) and the locking stop (3) are installed between the lower housing (10) and the mounting plate (1). The lower housing (10) also has an insert (11).

8. A car electric door lock according to claim 7, characterized in that, The lower housing (10) is connected to the car door through a connecting plate (12), and a limiting protrusion corresponding to the shape of the outer side of the lower housing (10) is provided on one side of the connecting plate (12).

9. A car electric door lock according to claim 7, characterized in that, The mounting plate (1) is provided with a motor mounting plate (13), on which a motor (14) and a reducer (15) are mounted. The motor (14) is connected to the reducer (15), and the reducer (15) is connected to the gear plate (4) through gears.

10. A car electric door lock according to claim 1, characterized in that, The latch (2) and gear plate (4) are provided with protrusions, and the mounting plate (1) is provided with micro switches (16). When the latch (2) and gear plate (4) rotate, the latch (2) and gear plate (4) press against different micro switches (16) through the protrusions.

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