Novel sliding door lock system for motor vehicle

Abstract

The invention discloses a novel sliding door lock system for a motor vehicle. The novel sliding door lock system comprises a rear lock assembly, a front lock assembly and a full-open limiting lock assembly. The outward opening inhaul cable is connected with the rear lock assembly and the sliding door outward opening handle; the inward opening inhaul cable is connected with the rear lock assembly and the vehicle door trim; the front lock inhaul cable is connected with the rear lock assembly and the front lock assembly; and the full-open limiting lock inhaul cable is connected with the rear lock assembly and the full-open limiting lock assembly. The rear lock assembly adopts full electric control operation, the front lock assembly and the full-open limiting lock assembly are directly operated through the rear lock for unlocking, and a transfer executing mechanism in a traditional sliding door lock system is omitted. As a mechanical backup, the rear lock assembly can be directly operated by the inward opening inhaul cable to perform mechanical double-pull unlocking under the condition of power failure of the whole vehicle or emergency, and the man-machine operation of the inward opening inhaul cable adopts a pull ring or hidden inner buckle mode.

Description

Technical Field

[0001] The invention relates to the technical field of sliding door locks, and in particular to a novel sliding door lock system for motor vehicles. Background Art

[0002] In recent years, my country's MPV (multi-purpose passenger vehicle) market has shown a strong growth trend. This trend is mainly due to the rise of new energy vehicles, especially the development of MPV electrification, which fully reflects the fierce competition in the automotive industry and the rapid changes in consumer preferences. However, the current design and technology of automotive sliding door lock systems still mainly use traditional mechanical door locks. These traditional sliding door lock systems have many disadvantages: for example, the complex transmission of the connecting rod leads to less smooth operation; the transfer mechanism is bloated, which increases the overall weight of the system; the cable arrangement is cumbersome, which not only affects the reliability of the system, but also increases the difficulty of installation and maintenance; the low degree of electrification cannot meet the increasing demand for intelligence and convenience in the automotive industry; the large number of parts not only increases the manufacturing cost, but also reduces the reliability of the system. Summary of the invention

[0003] The purpose of the present invention is to solve the problems of complex connecting rod transmission, bloated transfer mechanism, complicated cable arrangement, low degree of electrification and large number of parts in the existing sliding door lock, and to propose a new sliding door lock system for motor vehicles.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A novel sliding door lock system for a motor vehicle comprises a rear lock assembly, a front lock assembly and a full-open limit lock assembly;

[0006] Also includes:

[0007] An outer opening cable connecting the rear lock assembly and the outer opening handle of the sliding door;

[0008] An inner opening cable is connected to the rear lock assembly and the door interior;

[0009] A front lock cable connecting the rear lock assembly and the front lock assembly;

[0010] The fully open limit lock cable connects the rear lock assembly and the fully open limit lock assembly.

[0011] Preferably, the rear lock assembly comprises:

[0012] An outward opening connecting rod connected to one end of the outward opening cable;

[0013] An inner opening connecting rod connected to one end of the inner opening cable;

[0014] A rear lock assembly output connecting rod, one end of the front lock cable and one end of the full-open limit lock cable are both connected to the output connecting rod;

[0015] The rear lock assembly locking mechanism is locked with the rear lock buckle, which is installed on the C-pillar of the vehicle body and is provided with an upper release safety knob;

[0016] The wiring harness socket component is electrically connected to the motor vehicle controller through the wiring harness.

[0017] Preferably, the front lock assembly comprises:

[0018] A front lock assembly output connecting rod connected to the other end of the front lock cable;

[0019] The front lock opening link drives the front lock pawl mechanism to disengage from the locking position to the opening position;

[0020] The front lock assembly locking mechanism is locked with the front lock buckle on the vehicle body.

[0021] Preferably, the fully open limit lock assembly comprises:

[0022] A fully open limit lock assembly output connecting rod connected to the other end of the fully open limit lock cable;

[0023] The fully open limit lock opens the connecting rod, driving the fully open limit lock pawl mechanism to disengage from the locked position to the open position;

[0024] The fully open limit lock assembly locking mechanism is locked with the fully open limit lock buckle under the vehicle body. Preferably, the novel sliding door lock system for a motor vehicle further includes an inner opening handle assembly:

[0025] The inner opening handle assembly includes a bracket, an inner opening handle, a handle connecting rod mechanism, a pull rod A, a pull rod B, an inner opening pull rod, a full-open limit lock pull rod, a torsion spring, a micro switch A, a micro switch B, a micro switch wiring harness and an electrical connector.

[0026] Preferably, the inner opening cable comprises an inner opening cable A and an inner opening cable B.

[0027] Preferably, the full-open limit lock assembly also includes a full-open limit lock micro switch.

[0028] Preferably, the rear lock assembly further comprises an electric actuator, which drives the rear lock assembly to lock with the rear lock buckle.

[0029] Preferably, the inner opening cable A connects the inner opening handle assembly and the rear lock assembly.

[0030] Preferably, the inner opening cable B connects the inner opening handle assembly and the full-opening limit lock assembly.

[0031] The beneficial effects of the present invention are:

[0032] The rear lock assembly of the present invention is fully electrically controlled, and the front lock assembly and the full-open limit lock assembly are directly operated by the rear lock to unlock, omitting the transfer actuator in the traditional sliding door lock system. As a mechanical backup, the rear lock assembly can be directly operated by the inner opening cable to perform mechanical double-pull unlocking in the event of a vehicle power failure or emergency. The human-machine operation of the inner opening cable adopts a pull ring or a hidden inner buckle hand.

[0033] In another embodiment of the present invention, the inner opening handle assembly is retained to meet the user habit of using the inner opening handle for the traditional sliding door, and the rear lock is still operated by full electric control. The human-machine operation of the inner opening cable is the inner opening handle, which serves as a mechanical backup. In the event of a power failure or emergency of the entire vehicle, the inner opening handle is connected to the inner opening cable A to directly operate the rear lock assembly for mechanical double-pull unlocking. Compared with the traditional sliding door system, the present invention significantly simplifies the structure of parts, reduces the weight of the system, saves the installation and layout space inside the door, and the space layout is extremely flexible. The number of cables is reduced to 4 types, namely, the inner opening cable, the outer opening cable, the limit lock cable, and the front lock cable, which simplifies the path from the operating surface to the execution surface and reduces the difficulty of installation and layout. Since there is no installation restriction of the transfer actuator, it is beneficial to the waterproofing of the interior trim panel, and can also effectively improve the sound quality of the door lock system, reduce the transmission link, improve the transmission efficiency, and facilitate the assembly and layout of the door lock system, improve the assembly efficiency, greatly reduce the loading cycle, and greatly reduce the cost of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the arrangement of a novel sliding door lock system for a motor vehicle proposed by the present invention;

[0035] Figure 2 A schematic diagram of the arrangement of the novel sliding door lock system for a motor vehicle proposed by the present invention in a motor vehicle door;

[0036] Figure 3 A schematic diagram of the arrangement of a novel sliding door lock system for a motor vehicle including an inner opening handle assembly proposed by the present invention;

[0037] Figure 4 A schematic diagram of the arrangement of the new sliding door lock system for a motor vehicle including an inner opening handle assembly in a motor vehicle door according to the present invention

[0038] Figure 5 The figure is a diagram of the rear lock assembly and its connection structure;

[0039] Figure 6 It is a schematic diagram of the half-locked state of the bolt and pawl mechanism;

[0040] Figure 7 It is a schematic diagram of the fully locked state of the bolt and pawl mechanism;

[0041] Figure 8 It is a schematic diagram of automatic closing of the electric actuator;

[0042] Fig. 9 Schematic diagram of electric unlocking for electric actuator;

[0043] Fig.10 This is a schematic diagram of unlocking the inner opening lever;

[0044] Fig.11 This is a schematic diagram of unlocking the outside opening lever;

[0045] Fig.12 It is a schematic diagram of the rear lock assembly driving the front lock assembly and the limit lock assembly;

[0046] Fig.13 This is a schematic diagram of the central control insurance structure;

[0047] Fig.14 This is a schematic diagram of an inward-opening double-pull structure;

[0048] Fig.15 The figure is a diagram of the front lock assembly and its connection structure;

[0049] Fig.16 This is a diagram of the fully open limit lock assembly and its connection structure;

[0050] Fig.17 The fully open limit lock assembly including the fully open limit lock micro switch and its connection structure diagram;

[0051] Fig.18 This is a diagram of the inward opening handle assembly and its connection structure.

[0052] In the figure: 100, rear lock assembly; 10011, rear lock tongue; 10012, rear lock pawl; 10021, execution motor; 10022, planetary gear train mechanism; 10023, action execution mechanism; 10024, automatic suction push rod mechanism; 10025, unlocking rod; 10026, track rod; 101, external opening connecting rod; 1011, external opening control rod mechanism; 1012, linkage mechanism; 102, internal opening connecting rod; 1021, control rod mechanism; 103, output connecting rod; 104, mechanical central control insurance knob; 1041, central control insurance drive motor; 1042, central control insurance gear; 1043, insurance internal opening pull rod mechanism; 1044, insurance external opening pull rod mechanism; 105, wiring harness socket component; 200, front lock assembly; 201, front lock tongue; 202, Front lock pawl; 205, front lock opening connecting rod; 210, front lock buckle; 300, full-open limit lock assembly; 301, full-open limit lock tongue; 305, full-open limit lock opening connecting rod; 310, full-open limit lock buckle; 320, full-open limit lock micro switch; 400, inner opening handle assembly; 401, bracket; 402, inner opening handle; 403, handle connecting rod mechanism; 404, pull rod A; 405, pull rod B; 406, inner opening pull rod; 407, full-open limit lock pull rod; 408, torsion spring; 409, micro switch A; 410, micro switch B; 411, micro switch wiring harness; 412, electrical connector; 20, front lock cable; 30, full-open limit lock cable; 40, outer opening cable; 50, inner opening cable; 50a, inner opening cable A; 50b, inner opening cable B. DETAILED DESCRIPTION

[0053] A novel sliding door lock system for a motor vehicle comprises a rear lock assembly 100, a front lock assembly 200 and a full-open limit lock assembly 300.

[0054] The rear lock assembly 100 is placed in the middle of the C-pillar of the door.

[0055] The rear lock assembly 100 includes a rear lock tongue 10011 and a rear lock pawl 10012 mechanism, see Figure 6 and Figure 7 The rear lock tongue 10011 can move from a semi-locked position to a fully locked position, and the rear lock pawl 10012 keeps the rear lock tongue 10011 in the locked position, locking the door and the body of the motor vehicle.

[0056] The rear lock assembly 100 integrates a built-in electric actuator, refer to Figure 8 and Fig. 9The electric actuator is an actuator motor 10021, which drives the planetary gear train mechanism 10022, drives the action actuator 10023, and then makes the automatic suction push rod mechanism 10024 push the rear lock bolt 10011 from the semi-locked position to the fully locked position, locking the door and the body. Conversely, the actuator motor 10021 drives the planetary gear train mechanism 10022, drives the action actuator 10023, and then the unlocking rod 10025 drives the rear lock pawl 10012 to disengage from the locked position to the open position, releasing the lock between the rear lock and the body.

[0057] The rear lock assembly 100 includes an inner opening connecting rod 102 and an outer opening connecting rod 101. Fig.11 , the rear lock outer opening connecting rod 101 drives the linkage mechanism 1012 through the outer opening control rod 1011; Fig.10 , the rear lock inner opening connecting rod 102 drives the linkage mechanism 1012 through the control rod mechanism 1021; Fig.10 and Fig.11 , and then the linkage mechanism 1012 drives the unlocking rod 10025 transmission mechanism to drive the rear lock pawl mechanism to disengage from the locked position to the unlocked position, thereby releasing the lock between the rear lock and the vehicle body.

[0058] The rear lock assembly 100 includes an output connecting rod 103, referring to Fig.12 The output connecting rod 103 can provide unlocking driving force to the front lock assembly 200 and the fully open limit lock assembly 300; the front lock is driven by the front lock cable 20 to drive the front lock opening connecting rod 205 to give the front lock pawl mechanism 202 an unlocking driving force, so that the locking position of the front lock mechanism lock tongue 201 is disengaged from the locked position to the open position; the fully open limit lock is driven by the fully open limit lock cable 30 to drive the fully open limit lock opening connecting rod 305, so that the locking position of the fully open limit lock mechanism lock tongue 301 is disengaged from the locked position to the open position, thereby releasing the lock between the front lock assembly and the fully open limit lock assembly and the vehicle body.

[0059] The rear lock assembly 100 also includes an electric central control insurance function, see Fig.13 and Fig.14 The electric central control safety function is driven by the central control safety execution motor 1041 to output power, driving the central control safety gear 1042 to rotate, thereby pushing the safety inner opening pull rod structure 1043 to realize inner opening and release of the safety; the central control safety gear 1042 simultaneously pushes the mechanical central control safety knob 104 to drive the safety outer opening pull rod structure 1044 to realize outer opening and release of the safety. When the electric central control safety is opened, the outer opening connecting rod 101 of the rear lock assembly 100 cannot drive the rear lock pawl 10012 mechanism from the locked position to the open position through the transmission mechanism inside the rear lock, and cannot release the lock between the rear lock and the vehicle body. When the electric central control safety is closed, the outer opening connecting rod 101 of the rear lock assembly can drive the rear lock pawl 10012 mechanism from the locked position to the open position through the transmission mechanism inside the rear lock, and release the lock between the rear lock and the vehicle body.

[0060] It should be added that the rear lock assembly 100 includes but is not limited to the following functions: mechanical inner opening double pull unlocking, mechanical outer opening, central control electric release insurance CDL, manual release insurance, manual child insurance MCL, electric child insurance PCL, mechanical manual release central control insurance knob, electric pull-in, electric release, front lock cable power output, full open limit lock cable power output. The rear lock assembly provides various switch signals for the controller to control the rear lock assembly, including but not limited to the following signals: central control insurance signal, electric child insurance signal, half lock signal, full lock signal, pull-in reset or electric open reset signal.

[0061] In some embodiments, the rear lock assembly 100 also includes a mechanical central control safety, and the mechanical central control safety knob 104 is used as a power to drive the central control safety gear 1042 to rotate, thereby driving the safety inner opening pull rod structure 1043 to realize the inner opening and release of the safety; at the same time, the mechanical central control safety knob 104 drives the safety outer opening pull rod structure 1044 to realize the outer opening and release of the safety. When the mechanical central control safety knob is placed in the open position, the outer opening connecting rod 101 of the rear lock assembly 100 cannot drive the rear lock pawl mechanism from the locked position to the open position through the transmission mechanism inside the rear lock, and cannot release the lock between the rear lock and the vehicle body. When the mechanical central control safety knob is placed in the closed position, the outer opening connecting rod 101 of the rear lock assembly can drive the rear lock pawl mechanism from the locked position to the open position through the transmission mechanism inside the rear lock, and release the lock between the rear lock and the vehicle body. The rear lock assembly 100 also includes a wiring harness socket component 105, which can be electrically connected to the motor vehicle controller through a wiring harness.

[0062] Furthermore, the rear lock assembly 100 also has an inner opening double-pull unlocking function, which is composed of an inner opening pull rod 102 and a central control gear 1042; the inner opening double-pull unlocking function is specifically: when the electric central control safety function or the mechanical central control safety knob is in the on state, when the inner opening link 102 is pulled for the first time, it will only drive the central control gear 1042 to close the central control safety, but cannot drive the rear lock pawl to move, and cannot release the lock between the rear lock and the vehicle body. When the inner opening link 102 is pulled for the second time, the rear lock pawl mechanism can be driven by the transmission mechanism inside the rear lock to disengage from the locked position to the open position, and the lock between the rear lock assembly and the vehicle body is released.

[0063] In some embodiments, the front lock assembly 200 is placed at the B-pillar position of the vehicle door, and the front lock assembly 200 includes a front lock tongue 201 and a front lock pawl mechanism 202. The front lock tongue 201 can move from the fully open position to the locked position, and the front lock pawl mechanism 202 keeps the front lock tongue in the locked position to assist in locking the vehicle door and the body of the motor vehicle. The front lock assembly 200 also includes a front lock opening link 205, which can drive the front lock pawl mechanism 202 to disengage from the locked position to the open position.

[0064] In some embodiments, the full-open limit lock assembly 300 is placed at the D-pillar position of the vehicle door, and the full-open limit lock assembly 300 includes a full-open limit lock tongue 301 and a full-open limit lock opening link 305. The full-open limit lock tongue can move from the full-open position to the full-locked position, and the full-open limit lock opening link 305 keeps the full-open limit lock tongue in the locked position. When the sliding door of the motor vehicle is fully opened, the full-open limit lock assembly 300 locks the sliding door with the vehicle body. When the full-open limit lock of the motor vehicle is unlocked, the full-open limit lock opening link 305 leaves the full-open limit lock tongue 301 and moves from the locked position to the open position.

[0065] In other embodiments, the fully open limit lock assembly 300 further includes a fully open limit lock micro switch 320, which functions to determine the open and closed states of the fully open limit lock. Figure 8 .

[0066] The novel sliding door lock system for a motor vehicle in this embodiment further includes:

[0067] The outer opening cable 40 connects the rear lock assembly 100 and the outer opening handle of the sliding door.

[0068] The inner opening cable 50 connects the rear lock assembly 100 and the door interior.

[0069] The front lock cable 20 connects the rear lock assembly 100 and the front lock assembly 200 .

[0070] The fully open limit lock cable 30 connects the rear lock assembly 100 and the fully open limit lock assembly 300 .

[0071] Based on the rear lock assembly 100, the front lock assembly 200, the full-open limit lock assembly 300, the outer opening cable 40, the inner opening cable 50, the front lock cable 20 and the full-open limit lock cable 30, the main working principle of the new sliding door lock system for a motor vehicle in this embodiment is as follows:

[0072] 1. Electric closing and electric suction of the vehicle door: When the vehicle door is in the fully open state, the full-open limit lock assembly 300 and the full-open limit lock lock buckle 310 are in the locked state. When the vehicle door needs to be closed, the electric actuator inside the rear lock assembly 100 can be started through the electronic button on the sliding door interior or the electronic switch signal on the sliding door outer handle, or other electronic triggering modes. The rear lock will drive the full-open limit lock cable 30 through the output connecting rod to drive the locking mechanism inside the full-open limit lock assembly 300 to disengage from the locked position to the open position. After the full-open limit lock assembly 300 and the full-open limit lock lock buckle 310 are unlocked, the sliding door electric drive device can drive the sliding door to close to the semi-locked position along the sliding guide rail, and the vehicle door is sucked to the fully locked position through the electric suction function of the electric actuator inside the rear lock assembly 100.

[0073] 2. Opening the door electrically from outside the vehicle: When the door is completely closed, the rear lock assembly 100 and the rear lock catch 110 are in a locked state, and the front lock assembly 200 and the front lock catch 210 are in a locked state. When the rear lock assembly 100 is in the state of releasing the central control insurance, the electric actuator inside the rear lock assembly 100 can be started by sliding the electronic signal on the door handle or other electronic triggering modes. The rear lock assembly 100 will first drive the front lock cable 20 through the output connecting rod 103 to drive the locking mechanism inside the front lock assembly 200 from the locked position to the open position, thereby releasing the lock between the front lock assembly 200 and the front lock catch 210. Secondly, the electric actuator inside the rear lock assembly 100 can also provide unlocking driving force to the locking mechanism inside the rear lock assembly 110, driving the locking mechanism inside the rear lock assembly 100 from the locked position to the open position, thereby releasing the lock between the rear lock assembly 100 and the rear lock catch 110. At this time, when the sliding door electric drive device drives the sliding door to move along the guide rail to the fully open position, the fully open limit lock assembly 300 will lock with the fully open limit lock buckle 310 on the lower part of the vehicle body, locking the door in the fully open position. When the rear lock assembly 100 is in the upper central control safety state, the door cannot be opened electrically from outside the vehicle, and the central control safety of the rear lock must be released first.

[0074] 3. Opening the door electrically in the vehicle: When the door is completely closed, the rear lock assembly 100 and the rear lock buckle 110 are locked, and the front lock assembly 200 and the front lock buckle 210 are locked. When the vehicle is stationary and the electric child safety of the rear lock assembly 100 is closed, the electric actuator inside the rear lock assembly 100 can be started through the electronic button or other electronic trigger mode on the sliding door interior. The rear lock assembly 100 will first drive the front lock cable 20 through the output connecting rod 103 to drive the locking mechanism inside the front lock assembly 200 from the locked position to the open position, thereby releasing the lock between the front lock assembly 200 and the front lock buckle 210. Secondly, the electric actuator inside the rear lock assembly 100 can also provide unlocking driving force to the locking mechanism inside the rear lock assembly 100, driving the locking mechanism inside the rear lock assembly 100 from the locked position to the open position, thereby releasing the lock between the rear lock assembly 100 and the rear lock buckle 110. At this time, when the sliding door electric drive device drives the sliding door to move along the guide rail to the fully open position, the fully open limit lock assembly 300 will lock with the fully open limit lock buckle under the vehicle body, locking the door in the fully open position. When the rear lock is in the electric child safety state, the door cannot be opened electrically in the car, and the electric child safety of the rear lock must be released first.

[0075] 4. Open the door mechanically from outside the vehicle: Under normal circumstances, users do not need to use mechanical means to open the door from outside the vehicle. However, in emergency situations, such as when the vehicle collides, the body controller can detect the collision signal and send a central control insurance signal to release the door lock at the millisecond level of the collision. The release of the central control insurance signal can trigger a driving voltage to be transmitted to the rear lock assembly 100, immediately releasing the central control insurance of the rear lock assembly 100. After the central control insurance of the rear lock assembly 100 is released, under normal circumstances, the probability of the entire vehicle losing power due to a collision is extremely small, and external rescue personnel can still open the door by electrically opening the door. More seriously, if the collision impact is too great, causing the whole vehicle to lose power and the occupants in the vehicle to become disabled, the rescuer can open the door purely mechanically by pulling the sliding door handle hard. The sliding door handle will mechanically drive the outer opening cable 40, which is connected to the outer opening connecting rod 101 of the rear lock assembly 100. The outer opening connecting rod will drive the locking mechanism in the rear lock assembly 100 to move. The rear lock will first drive the front lock cable 20 through the output connecting rod 103 to drive the locking mechanism inside the front lock assembly 200 to disengage from the locked position to the open position, thereby releasing the lock between the front lock assembly 200 and the front lock buckle 210. Secondly, the mechanical actuator inside the rear lock assembly 100 can also provide an unlocking driving force to the locking mechanism inside the rear lock assembly 100, driving the locking mechanism inside the rear lock assembly 100 to disengage from the locked position to the open position, thereby releasing the lock between the rear lock assembly 100 and the rear lock buckle 110. At this time, the rescue personnel can manually move the sliding door along the guide rail to the fully open position, and the fully open limit lock assembly 300 will lock with the fully open limit lock buckle 310 under the vehicle body, locking the door in the fully open position.

[0076] 5. Open the door mechanically in the car: Under normal circumstances, users do not need to use mechanical means to open the door in the car, but in an emergency, for example, if the vehicle collides, the vehicle controller will immediately release the central control insurance of the rear lock assembly 100. If the electric child insurance of the rear lock assembly 100 is in the on state, the controller will immediately release the electric child insurance of the rear lock assembly 100. Under normal circumstances, the probability of the whole vehicle losing power due to a collision is extremely small, and the occupants in the car can still open the door by opening the door electrically. More seriously, if the whole vehicle loses power due to a collision, the occupants can open the door purely mechanically. The occupants can pull the pull ring on the inner opening cable 50, or pull the hidden inner handle on the door interior, to drive the inner opening cable 50 to connect to the inner opening connecting rod 102 of the rear lock assembly 100, and the inner opening connecting rod 102 drives the locking mechanism in the rear lock assembly 100 to move. The rear lock will first drive the front lock cable 20 through the output connecting rod to drive the locking mechanism inside the front lock assembly 200 to disengage from the locked position to the open position, thereby releasing the lock between the front lock assembly 200 and the front lock buckle 210. Secondly, the mechanical actuator inside the rear lock assembly 100 can also provide an unlocking driving force to the locking mechanism inside the rear lock assembly 100, driving the locking mechanism inside the rear lock assembly 100 to disengage from the locked position to the open position, thereby releasing the lock between the rear lock assembly 100 and the rear lock buckle 110. At this time, the door can be opened manually, and the occupant can manually pull the sliding door along the guide rail to the fully open position, and the fully open limit lock assembly 300 will lock with the fully open limit lock buckle 310 under the vehicle body, locking the door in the fully open position. In other emergency situations, if the occupant needs to open the door mechanically, if the collision release central control insurance is not triggered, the occupant needs to manually pull the inner opening cable 50 twice to open the door from the inside of the vehicle: when pulling for the first time, the inner opening cable 50 drives the rear lock assembly to mechanically release the central control insurance, and when pulling for the second time, the lock between the rear lock assembly and the front lock assembly and the vehicle body is released, and the door is manually opened.

[0077] In some embodiments, an inward opening handle assembly 400 is also disclosed, and the inward opening handle assembly 400 includes the following main parts: a bracket 401, an inward opening handle 402, a handle linkage mechanism 403, a pull rod A404, a pull rod B405, an inward opening pull rod 406, a fully open limit lock pull rod 407, a torsion spring 408, a micro switch A409, a micro switch B410, a micro switch wiring harness 411 and an electrical connector 412. When the door is opened, the inner opening handle 402 drives the handle linkage 403, and drives the inner opening pull rod 406 to the unlocking position through the pull rod A404, so that the inner opening cable 50a drives the rear lock assembly 100 to unlock, and at the same time, the movement of the inner opening pull rod 406 causes the signal of the micro switch A409 to change; when the door is closed, the inner opening handle 402 drives the handle linkage 403, and drives the full-open limit lock pull rod 407 to the unlocking position through the pull rod B405, so that the full-open limit lock cable 50b drives the full-open limit lock assembly 100 to unlock, and at the same time, the movement of the full-open limit lock pull rod 407 causes the signal of the micro switch B410 to change.

[0078] The inner opening cable includes an inner opening cable A50a and an inner opening cable B50b. The inner opening cable A50a connects the inner opening handle assembly 400 and the rear lock assembly 100, and the inner opening cable B50b connects the inner opening handle assembly 400 and the full opening limit lock assembly 300.

[0079] It should be noted that the inner opening handle assembly 400 does not necessarily include Fig. 9 All the components in the embodiment of the present invention may be simplified by eliminating any one or several of the components, for example, completely eliminating the bracket 401 or adopting a simplified body or design variation of the bracket 401 made of any material; for example, integrating the micro switch A409 and the micro switch B410 with the inner opening handle 402 or the handle connecting rod mechanism 403, or other design variations, all fall within the protection scope of the present invention.

[0080] Reference Figure 2 , the new sliding door lock system arrangement for a motor vehicle in this embodiment, Figure 2 The schematic diagram of the arrangement of the new sliding door lock system in the sliding door on the left rear side of the motor vehicle is shown in FIG. Figure 2 At the C position of the sliding door of the motor vehicle, near the middle of the C pillar of the vehicle body, the rear lock assembly 100 can be locked with the rear lock buckle 110 placed on the vehicle body through the rear lock tongue 10011 and the rear lock pawl 10012 inside it. Figure 2 The front lock assembly 200 is located at the position B of the sliding door of the motor vehicle, near the middle of the B-pillar of the vehicle body. When the sliding door is in the closed state, the front lock assembly 200 can lock with the front lock buckle 210 placed on the vehicle body through the front lock tongue 201 and the front lock pawl 202 inside it, playing an auxiliary locking role. The full-open limit lock assembly 300 is placed Figure 2In the D position of the sliding door of the motor vehicle, when the sliding door is in the fully open position, the fully open limit lock assembly 300 can lock the fully open limit lock buckle 310 placed under the vehicle body through the fully open limit lock tongue 301 and the fully open limit lock opening link 305 inside it, and lock the door in the fully open position. The outer opening cable 40 connects the rear lock assembly 100 and the outer opening handle of the sliding door. The inner opening cable 50 connects the rear lock assembly 100 and the hidden inner buckle on the door interior, and can also be directly arranged on the door interior in the form of a pull ring. The front lock cable 20 connects the output connecting rod of the rear lock assembly 100 and the front lock assembly 200. The fully open limit lock cable 30 connects the output connecting rod of the rear lock assembly 100 and the fully open limit lock assembly 300.

[0081] Based on Figure 2 For the settings of each component in Figure 3 The present embodiment also discloses that the inner opening handle assembly 400 is reserved for users of traditional sliding doors that use an inner opening handle, but the door opening and closing method still adopts a fully electric control operation, wherein the inner opening handle assembly (400) is placed Figure 3 The A position of the sliding door of the motor vehicle, wherein the outer opening cable 40 connects the rear lock assembly 100 and the outer opening handle of the sliding door. The inner opening cable A50a connects the inner opening connecting rod 102 of the rear lock assembly 100 and the inner opening handle assembly 400. When the door is mechanically opened by the inner opening handle, the inner opening cable A50a is responsible for transmitting the driving force to the rear lock assembly 100, and the internal mechanism of the rear lock assembly 100 drives the front lock assembly 200 to open, and then opens the rear lock assembly 100. The inner opening cable B50b connects the inner opening handle assembly 400 and the full opening limit lock assembly 300. When the vehicle loses power, when the door needs to be mechanically closed by the inner opening handle, the lock between the full opening limit lock assembly 300 and the vehicle body can be released separately. The front lock cable 20 connects the output connecting rod 103 of the rear lock assembly 100 and the front lock assembly 200. The full-open limit lock cable 30 connects the output connecting rod 103 of the rear lock assembly 100 and the full-open limit lock assembly 300 .

[0082] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel sliding door lock system for a motor vehicle, characterized in that: Including rear lock assembly, front lock assembly and full-open limit lock assembly; Also includes: An outer opening cable connecting the rear lock assembly and the outer opening handle of the sliding door; An inner opening cable is connected to the rear lock assembly and the door interior; A front lock cable connecting the rear lock assembly and the front lock assembly; The fully open limit lock cable connects the rear lock assembly and the fully open limit lock assembly.

2. A novel sliding door lock system for a motor vehicle according to claim 1, characterized in that: The rear lock assembly comprises: An outward opening connecting rod connected to one end of the outward opening cable; An inner opening connecting rod connected to one end of the inner opening cable; A rear lock assembly output connecting rod, one end of the front lock cable and one end of the full-open limit lock cable are both connected to the output connecting rod; The rear lock assembly locking mechanism is locked with the rear lock buckle, which is installed on the C-pillar of the vehicle body and is provided with an upper release safety knob; The wiring harness socket component is electrically connected to the motor vehicle controller through the wiring harness.

3. A novel sliding door lock system for a motor vehicle according to claim 2, characterized in that: The front lock assembly comprises: A front lock assembly output connecting rod connected to the other end of the front lock cable; The front lock opening link drives the front lock pawl mechanism to disengage from the locking position to the opening position; The front lock assembly locking mechanism is locked with the front lock buckle on the vehicle body.

4. A novel sliding door lock system for a motor vehicle according to claim 2, characterized in that: The fully open limit lock assembly comprises: A fully open limit lock assembly output connecting rod connected to the other end of the fully open limit lock cable; The fully open limit lock opens the connecting rod, driving the fully open limit lock pawl mechanism to disengage from the locked position to the open position; The fully open limit lock assembly locking mechanism is locked with the fully open limit lock buckle under the vehicle body.

5. A novel sliding door lock system for a motor vehicle according to claim 1, characterized in that: The novel sliding door lock system for a motor vehicle further comprises an inner opening handle assembly: The inner opening handle assembly includes a bracket, an inner opening handle, a handle connecting rod mechanism, a pull rod A, a pull rod B, an inner opening pull rod, a full-open limit lock pull rod, a torsion spring, a micro switch A, a micro switch B, a micro switch wiring harness and an electrical connector.

6. A novel sliding door lock system for a motor vehicle according to claim 5, characterized in that: The inner opening cable comprises an inner opening cable A and an inner opening cable B.

7. A novel sliding door lock system for a motor vehicle according to claim 1, characterized in that: The fully open limit lock assembly also includes a fully open limit lock micro switch.

8. A novel sliding door lock system for a motor vehicle according to claim 2, characterized in that: The rear lock assembly also includes an electric actuator, which drives the rear lock assembly to lock with the rear lock buckle.

9. A novel sliding door lock system for a motor vehicle according to claim 6, characterized in that: The inner opening cable A connects the inner opening handle assembly and the rear lock assembly.

10. A novel sliding door lock system for a motor vehicle according to claim 6, characterized in that: The inner opening cable B connects the inner opening handle assembly and the full-opening limit lock assembly.

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