Back door lock body, back door lock body assembly and vehicle

Abstract

The application relates to a back door lock body, a back door lock body assembly and a vehicle, and belongs to the technical field of vehicle door locks. The back door lock body comprises a shell, a lock tongue, a motor, a transmission mechanism and a dust barrier wall. The shell is provided with a lock opening. The lock tongue and / or a lock rod arranged on other components are connected through the lock opening. The motor is arranged in the shell. The motor is connected with the transmission mechanism. The transmission mechanism transmits the output power of the motor in a meshing mode to drive the lock tongue to act. The dust barrier wall is arranged in the shell. One side of the dust barrier wall is arranged towards the lock opening, and the other side of the dust barrier wall is arranged away from the lock opening. The motor and / or the transmission mechanism are arranged on the side of the dust barrier wall away from the lock opening, so that the motor and / or the transmission mechanism are isolated from the lock opening through the dust barrier wall, thereby preventing dust, sand and the like from contacting the motor and / or the transmission mechanism and the like, avoiding the working jam of the motor and / or the transmission mechanism due to the contact with dust and sand, and causing the lock tongue to fail to timely and effectively lock or unlock.

Description

Technical Field

[0001] This application relates to the technical field of vehicle door locks, and more particularly to a rear door lock body, a rear door lock body assembly, and a vehicle. Background Technology

[0002] In the modern automotive industry, the automatic tailgate lock, a key component for automatically closing and locking the tailgate, is widely used in various passenger and commercial vehicles. Its working principle involves a motor-driven latch that automatically engages and locks during the tailgate closing process, providing users with a convenient and safe experience.

[0003] However, during actual use of the car, dust and sand particles kicked up from the road can enter the self-closing lock under the action of airflow; this can easily cause the internal mechanism to jam, resulting in the tailgate being unable to close. Utility Model Content

[0004] This application addresses, to at least some extent, one of the technical problems in the related art.

[0005] Therefore, this application aims to provide a tailgate lock body, a tailgate lock body assembly, and a vehicle, by setting a dust barrier inside the lock body to isolate the motor and transmission mechanism and other components from the lock opening, so as to prevent dust, sand and other particles from contacting the motor and / or transmission mechanism and other components.

[0006] To achieve the above objectives, in a first aspect, this application provides a rear door lock body, comprising:

[0007] The housing has a locking opening;

[0008] The latch, at least part of which is located inside the housing, and the latch and / or the locking bar located in other parts are connected through the lock opening;

[0009] The motor is located inside the housing and is connected to a transmission mechanism. The transmission mechanism transmits the power output by the motor in a meshing manner to drive the locking tongue.

[0010] The dust barrier is located inside the housing, with one side facing the lock opening and the other side facing away from the lock opening.

[0011] The motor and / or transmission mechanism are located on the side of the dust barrier away from the lock opening.

[0012] In the technical solution, a dust-proof wall is set inside the housing, and the motor and / or transmission mechanism is located on the side of the dust-proof wall away from the lock opening. This isolates the motor and / or transmission mechanism from the lock opening through the dust-proof wall, preventing dust, sand, etc. from contacting the motor and / or transmission mechanism and other components. This avoids the motor and / or transmission mechanism from jamming due to contact with dust and sand, which would prevent the lock tongue from locking or unlocking in a timely and effective manner.

[0013] In some embodiments of this application, the transmission mechanism includes a worm and a gear. The worm is connected to the output shaft of the motor, and the gear is rotatably connected to the housing. The gear meshes with the worm to transmit the power output by the motor. The gear is connected to the locking tongue.

[0014] In the technical solution, the transmission mechanism is designed as a worm and a gear, with the worm connected to the output shaft of the motor and the gear connected to the locking tongue. The worm and gear work together to transmit the output power of the motor, thereby driving the locking tongue to perform unlocking or locking actions.

[0015] In some embodiments of this application, the dust barrier extends axially from the motor along the worm gear, and after extending to the end of the worm gear away from the motor, it is set on a side wall with a locking opening towards the housing.

[0016] Among them, a section of the dust-blocking wall extending along the axial direction of the worm is located on the side of the worm away from the gear; a section of the dust-blocking wall extending toward the side wall of the housing with the locking opening is located on the side of the gear toward the locking opening.

[0017] In the technical solution, the extension direction of the dust barrier is defined by taking the motor, worm gear, and lock as reference objects, and the setting position of the dust barrier is defined by taking the worm gear and gear as reference objects, so that the dust barrier has a good blocking effect on the motor, worm gear, and gear, and prevents dust, sand particles, etc. from affecting the normal operation of the motor, worm gear, and gear.

[0018] In some embodiments of this application, the housing includes an upper cover and a lower cover, which are detachably connected to each other.

[0019] The upper cover has an upper cover rib on the side facing the lower cover, and the lower cover has a lower cover rib on the side facing the upper cover. The upper cover rib and the lower cover rib are arranged along the extension direction of the dust barrier wall to jointly define the dust barrier wall.

[0020] In the technical solution, by designing the housing as a split structure including an upper cover and a lower cover, it is convenient to install components such as the locking tongue, motor and transmission mechanism inside the housing, and it is also convenient to set up a dust barrier inside the housing. By setting an upper cover rib on the side of the upper cover facing the lower cover and setting a lower cover rib on the side of the lower cover facing the upper cover, the upper cover rib and the lower cover rib are arranged along the extension direction of the dust barrier so that the upper cover rib and the lower cover rib together define the dust barrier.

[0021] In some embodiments of this application, the lower cover rib includes a first stop and a second stop, the first stop being located near the lock opening and the second stop being located at the end of the motor output shaft.

[0022] In the technical solution, the lower cover rib is designed to include a first stop and a second stop. The first stop is positioned close to the lock opening to protect the transmission mechanism and prevent dust, sand, etc. from contacting the transmission mechanism. The second stop is positioned at the end of the motor output shaft to protect the motor and the transmission mechanism and prevent dust, sand, etc. from contacting the motor and / or the transmission mechanism.

[0023] In some embodiments of this application, the second stop is provided with an insertion port on the side facing the motor for inserting the end of the motor output shaft, so that the second stop supports the rotation of the motor output shaft.

[0024] In the technical solution, by setting an insertion port in the second stop, when the output shaft of the motor is inserted into the insertion port, the second stop can support the rotation of the output shaft of the motor, increasing the smoothness of the output shaft rotation; the second stop can not only protect the motor, but also support the rotation of the output shaft.

[0025] In some embodiments of this application, the insertion port is positioned to pass through the second stop along the direction from the lower cover toward the upper cover;

[0026] The end of the upper cover rib furthest from the motor is located inside the insertion port to position or connect the upper cover and the lower cover.

[0027] In the technical solution, the insertion port is designed to pass through the second stop block along the direction from the lower cover to the upper cover, so that the insertion port is a passage at the top of the second stop block, and the upper cover rib is designed to be set at the insertion port to realize the positioning and connection between the upper cover and the lower cover.

[0028] In some embodiments of this application, the housing is provided with a mounting groove, the mounting groove is located inside the housing, the motor is located in the mounting groove, and the output shaft of the motor passes through the groove wall of the mounting groove and is connected to the transmission mechanism.

[0029] In the technical solution, a mounting groove is provided in the housing, and the motor is placed in the mounting groove so that the groove wall can be used to further protect the motor.

[0030] Secondly, this application provides a rear door lock assembly, comprising:

[0031] The aforementioned rear door lock body is connected to an ice-breaking cable and a self-closing cable, which are connected to the lock tongue.

[0032] The actuator is connected to the end of the ice-breaking cable and the self-closing cable away from the rear door lock body;

[0033] The actuator unlocks the latch by pulling the ice-breaking cable, and locks the latch by pulling the self-priming cable.

[0034] In the technical solution, by setting up ice-breaking pull lines and self-priming pull lines connected to the locking tongue, the actuator can control the locking tongue to unlock or lock through the ice-breaking pull lines and self-priming pull lines.

[0035] Thirdly, this application also provides a vehicle, including:

[0036] The aforementioned rear door lock assembly;

[0037] Body;

[0038] Rear tailgate, the rear tailgate is installed on the vehicle body;

[0039] The tailgate lock body is installed on the tailgate, and the lock rod is installed on the vehicle body. The position of the lock rod on the vehicle body corresponds to the position of the tailgate lock body on the tailgate.

[0040] Alternatively, the tailgate lock body is installed on the vehicle body, and the lock rod is installed on the tailgate, with the lock rod's position on the tailgate corresponding to the tailgate lock body's position on the vehicle body.

[0041] In the technical solution, the tailgate lock body is installed on the tailgate or body of the vehicle, and the lock rod is installed on the tailgate or body of the vehicle. By cooperating with the tailgate lock body and the lock rod, the tailgate can be locked and unlocked. The tailgate lock body is not only convenient to lock and unlock, but also has high reliability. It can avoid the problem of being unable to lock or unlock due to dust or sand particles entering the lock body.

[0042] As can be seen from the above technical solutions, additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0043] Figure 1 This is a structural schematic diagram of the rear door lock body according to an embodiment of this application;

[0044] Figure 2 This is a cross-sectional schematic diagram of the rear door lock body according to an embodiment of this application;

[0045] Figure 3 This is a schematic diagram of the rear door lock body without the lower cover according to the embodiments of this application;

[0046] Figure 4 This is a schematic diagram of the rear door lock body without the top cover according to the embodiments of this application;

[0047] Figure 5 This is a magnified view of a portion of point A in the image;

[0048] Figure 6 This is a schematic diagram of the structure of the cover according to an embodiment of this application;

[0049] Figure 7 This is a schematic diagram of the structure of the lower cover according to an embodiment of this application;

[0050] Figure 8 This is a cross-sectional schematic diagram of the housing according to an embodiment of this application;

[0051] Figure 9 This is a structural schematic diagram of the rear door lock assembly according to an embodiment of this application;

[0052] Figure 10 This is a schematic diagram of the internal structure of the lock body according to an embodiment of this application.

[0053] In the above figures:

[0054] 1. Lock body; 2. Self-closing pull cable; 3. Ice-breaking pull cable; 4. Actuator;

[0055] 11. Housing; 12. Locking tongue; 13. Motor; 14. Worm gear; 15. Gear; 16. Dust barrier;

[0056] 101. Lock opening; 102. Mounting slot;

[0057] 111. Top cover; 112. Bottom cover;

[0058] 1111. Convex ribs;

[0059] 1121. First stop block; 1122. Second stop block; 1123. Insertion port; 1124. Limit block;

[0060] 161. Top cover reinforcement;

[0061] 1611. Reinforcing ribs. Detailed Implementation

[0062] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or 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 a limitation of this application.

[0063] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0064] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0065] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0066] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0067] It should be noted that the tailgate of a car is locked to the car body by a tailgate self-closing lock. The tailgate self-closing lock typically includes a tailgate lock body 1 and a locking rod. The tailgate lock body includes a latch 12 that cooperates with the locking rod, a motor 13, and a transmission mechanism. The motor 13 drives the latch 12 to move through at least the transmission mechanism, so that the latch 12 is connected to or separated from the locking rod. When the latch 12 and the locking rod are connected, the tailgate is locked to the car body; when the latch 12 is separated from the locking rod, the tailgate is unlocked to the car body.

[0068] In this embodiment, the action of connecting the latch 12 to the locking bar is called the locking action of the latch 12, and the action of separating the latch 12 from the locking bar is called the unlocking action of the latch 12.

[0069] During actual use of a car, dust and sand particles kicked up from the road surface will enter the interior of the car's rear door lock body 1 under the action of airflow. When the power of the motor 13 is transmitted through the transmission mechanism in a meshing manner, if dust or sand particles come into contact with the meshing surface, it can easily cause the transmission mechanism to jam, resulting in the inability to effectively drive the lock tongue 12 to perform locking or unlocking actions, which may lead to the problem that the rear door cannot be locked or unlocked.

[0070] Based on this, this application proposes a rear door lock body 1, a rear door lock body assembly, and a vehicle. By setting a dust barrier 16 inside the lock body 1, the dust barrier 16 is used to protect the motor 13 and / or transmission mechanism and other components, so as to prevent dust, sand and other particles from contacting the motor 13 and / or transmission mechanism and other components.

[0071] In the following, embodiments of this application will be described in detail with reference to the accompanying drawings.

[0072] As attached Figures 1 to 4 As shown in an illustrative embodiment of the rear door lock body 1 of this application, the rear door lock body 1 includes a housing 11, a latch 12, a motor 13, a transmission mechanism, and a dustproof wall 16; the housing 11 has a lock opening 101; at least part of the latch 12 is located inside the housing 11; the motor 13 is located inside the housing 11, and the motor 13 is connected to the transmission mechanism, which transmits the output power of the motor 13 in a meshing manner to drive the latch 12 to move; the dustproof wall 16 is located inside the housing 11, with one side of the dustproof wall 16 facing the lock opening 101 and the other side of the dustproof wall 16 facing away from the lock opening 101; wherein, the motor 13 and / or the transmission mechanism is located on the side of the dustproof wall 16 facing away from the lock opening 101, so that the motor 13 and / or the transmission mechanism are isolated from the lock opening 101 by the dustproof wall 16, thereby preventing dust, sand, etc. from contacting the motor 13 and / or the transmission mechanism and other components.

[0073] It should be noted that, for ease of explanation, in Figure 2 The lieutenant general highlighted at least part of the dust barrier wall 16 in bold black.

[0074] like Figure 2 As shown, the dust barrier 16 is positioned close to the motor 13 and / or the transmission mechanism so that the dust barrier 16 can better prevent dust from the lock opening 101 from contacting the motor 13 and / or the transmission mechanism.

[0075] In some embodiments, since the transmission mechanism drives the locking tongue 12 to move, the end of the transmission mechanism away from the motor 13 is usually located close to the locking tongue 12, and the locking tongue 12 is located at the lock opening 101. Thus, the end of the transmission mechanism away from the motor 13 is located close to the lock opening 101.

[0076] One end of the dust barrier 16 is positioned close to the locking opening 101 to better block dust from entering through the locking opening 101, thereby isolating the motor 13 and / or transmission mechanism from the locking opening 101 and preventing dust from contacting the transmission mechanism and affecting its reliability.

[0077] It should be noted that the motor 13 is connected to the latch 12 at least through a transmission mechanism to drive the latch 12 to perform locking or unlocking actions. In practical applications, the transmission mechanism may also be connected to a connecting mechanism, which continues to transmit power to drive the latch 12 to perform unlocking or locking actions. The connecting mechanism can be a linkage or a cam, etc., which are conventional technical means in this field and will not be described in detail here.

[0078] In some embodiments, the extension direction and the location of the dust barrier 16 are related to the specific composition of the transmission mechanism. Different compositions of the transmission mechanism result in different dustproof requirements for the dust barrier 16, which in turn leads to different extension directions and locations of the dust barrier 16.

[0079] In some embodiments of this application, such as Figure 2 As shown, the transmission mechanism includes a worm 14 and a gear 15. The worm 14 is connected to the output shaft of the motor 13, and the gear 15 is rotatably connected to the housing 11. The gear 15 meshes with the worm 14 to transmit the power output by the motor 13.

[0080] Compared to the worm gear 14, the gear 15 is positioned closer to the lock opening 101 to facilitate connection between the gear 15 and the lock tongue 12.

[0081] In practical applications, gear 15 can be directly connected to the latch 12 to drive the latch 12 to perform unlocking or locking actions. Gear 15 can also be connected to the latch 12 through a connecting mechanism. How gear 15 drives the latch 12 is a conventional technical means in this field and will not be elaborated here.

[0082] The advantages of designing the transmission mechanism as a worm gear 14 and gear 15 transmission are: the worm gear 14 transmission structure is compact, which can achieve a large transmission ratio in a small space and meet the transmission requirements of low speed and high torque; during the meshing process, the helical teeth of the worm gear 14 and the tooth surface of the gear 15 are in line contact, which has a strong load-bearing capacity, smooth transmission and low noise.

[0083] It should be noted that the transmission mechanism includes, but is not limited to, the meshing of the worm 14 and the gear 15, or the meshing of two gears 15. This is a conventional technical means in the field and will not be described in detail here.

[0084] like Figure 2 As shown, the dust barrier 16 extends axially from the motor 13 along the worm 14, and after extending to the end of the worm 14 away from the motor 13, it is set on the side wall with a locking opening 101 facing the housing 11. The section of the dust barrier 16 extending axially along the worm 14 is located on the side of the worm 14 away from the gear 15; the section of the dust barrier 16 extending towards the housing 11 with the locking opening 101 is located on the side of the gear 15 facing the locking opening 101, so that the gear 15 and the locking opening 101 are separated by the dust barrier 16, thereby preventing dust and sand particles from contacting the gear 15 through the locking opening 101 and affecting the normal operation of the gear 15.

[0085] The dust barrier 16 effectively isolates the motor 13, worm gear 14, gear 15 from the lock 101, preventing dust, sand, and other particles from contacting the motor 13, worm gear 14, and gear 15. This increases the dust barrier 16's blocking effect on the motor 13, worm gear 14, and gear 15, thereby enhancing the dustproof effect of the dust barrier 16.

[0086] In some embodiments, the extension direction and the location of the dust barrier 16 are related to the arrangement of the motor 13 and the transmission mechanism inside the housing 11. The extension direction and the location of the dust barrier 16 are different depending on the location of the motor 13 and the transmission mechanism inside the housing 11.

[0087] In some embodiments of this application, in order to reduce the space occupied by the motor 13, worm gear 14 and gear 15, the motor 13, worm gear 14 and gear 15 are arranged in a generally inclined direction inside the housing 11.

[0088] Specifically, such as Figures 2-4 As shown, the motor 13 is arranged at the outer edge of the housing 11, and the output shaft of the motor 13 is arranged toward the middle part of the housing 11. The worm gear 14 and the gear 15 are arranged in the middle part of the housing 11, and the gear 15 is arranged near the lock opening 101.

[0089] Preferably, the motor 13 is arranged inside the housing 11 at a corner away from the lock opening 101, and the output shaft of the motor 13 is inclined towards the lock opening 101. On the one hand, this can save the space required to arrange the motor 13 and the transmission mechanism, and on the other hand, it can bring the transmission mechanism closer to the lock opening 101, thereby facilitating the transmission structure to drive the lock tongue 12 to move.

[0090] In other embodiments, the housing 11 includes a first sidewall and a second sidewall, the first sidewall and the second sidewall being disposed opposite to each other; at least a portion of the locking opening 101 is disposed on the first sidewall; the motor 13 is disposed close to the second sidewall, the output shaft of the motor 13 is disposed at an angle from the second sidewall toward the first sidewall, the gear 15 is located on the side of the motor 13 facing the second sidewall, and the gear 15 is disposed on the side of the dustproof wall 16 away from the locking opening 101.

[0091] In some embodiments of this application, the housing 11 is provided with a mounting groove 102, which is located inside the housing 11. The motor 13 is located inside the mounting groove 102 so that the groove wall of the mounting groove 102 can be used to further protect the motor 13. The output shaft of the motor 13 passes through the groove wall of the mounting groove 102 and is connected to the transmission mechanism.

[0092] The dust barrier 16 extends from the position of the mounting groove 102 along the setting direction of the worm gear 14, and then extends toward the first side wall after reaching the end of the worm gear 14 away from the motor 13. The dust barrier 16 and the mounting groove 102 work together to prevent sand and dust from entering the motor 13, the worm gear 14 and the gear 15, thereby further increasing the dustproof effect of the rear door lock body 1.

[0093] In some embodiments of this application, the housing 11 is designed as a split structure including an upper cover 111 and a lower cover 112. On the one hand, it is convenient to install components such as the locking tongue 12, the motor 13 and the transmission mechanism inside the housing 11. On the other hand, it is convenient to set up a dust barrier 16.

[0094] Specifically, such as Figure 6 and Figure 7 As shown, the housing 11 includes an upper cover 111 and a lower cover 112, which are detachably connected to each other. The upper cover 111 has an upper cover rib 161 on the side facing the lower cover 112, and the lower cover 112 has a lower cover rib on the side facing the upper cover 111. The upper cover rib 161 and the lower cover rib are arranged along the extension direction of the dust barrier wall 16. The upper cover rib 161 and the lower cover rib together define the dust barrier wall 16, so as to facilitate the installation of the dust barrier wall 16 inside the housing 11.

[0095] like Figure 3 As shown, the upper cover rib 161 is located on the side of the worm gear 14 away from the gear 15, mainly for protecting the worm gear 14 and the output shaft of the motor 13; as Figure 4 As shown, the lower cover rib is located on the side of the gear 15 facing the lock opening 101, and is mainly used to protect the gear 15.

[0096] It should be noted that the dust barrier 16 is designed to include an upper cover rib 161 and a lower cover rib, so that the dust barrier 16 is discontinuous and broken. This not only makes it easier to manufacture the dust barrier 16, but also increases the overall strength of the dust barrier 16.

[0097] In some embodiments, such as Figure 6 As shown, the upper cover 111 is provided with a reinforcing rib 1611. The reinforcing rib 1611 protrudes from the side of the upper cover 111 facing the lower cover 112. The reinforcing rib 1611 is located at the position corresponding to the gear 15 on the upper cover 111, so as to protect the side of the gear 15 away from the lower cover 112 by means of the reinforcing rib 1611.

[0098] It should be noted that the reinforcing rib 1611 can also increase the overall strength of the top cover 111. In some embodiments, the reinforcing rib 1611 is arranged in a grid, which can increase the complexity of the dust transfer path and prevent dust from contacting the gear 15 and / or the motor 13.

[0099] like Figure 6 As shown, the mounting groove 102 is provided on the upper cover 111. In some embodiments, the bottom of the mounting groove 102 is also provided with reinforcing ribs 1611.

[0100] In some embodiments, the top cover 111 is provided with a rib 1111, which extends along the outer periphery of the motor 13 to form the groove wall of the mounting groove 102, so that the motor 13 is located in the middle part of the rib 1111, thereby the rib 1111 can effectively block the outer periphery of the motor 13, thereby preventing dust, sand and other particles from contacting the motor 13.

[0101] Preferably, the rib 1111 extends along the outer periphery of the motor 13 to form a closed structure, so that the rib 1111 can provide all-round protection for the circumference of the motor 13, thereby increasing the protective effect of the rib 1111 on the motor 13.

[0102] In some embodiments, such as Figure 7 As shown, the lower cover 112 is provided with a limiting block 1124, which is correspondingly provided with the protruding rib 1111. The limiting block 1124 is used to position the motor 13 in the installation position of the lower cover 112, so that after the upper cover 111 is connected to the lower cover 112, the motor 13 can be accurately placed in the installation groove 102.

[0103] In practical applications, the motor 13 and components such as the worm gear 14 and gear 15 are usually installed on the lower cover 112, and then the upper cover 111 is connected to the lower cover 112. Setting a limiting block 1124 on the lower cover 112 not only facilitates the positioning of the motor 13 on the lower cover 112, but also compensates for the height of the rib 1111, so that the limiting block 1124 and the rib 1111 together form the groove wall of the mounting groove 102. This is because the two ends of the height direction of the groove wall of the mounting groove 102 are usually connected to the upper cover 111 and the lower cover 112 respectively, so as to ensure the protective effect of the groove wall of the mounting groove 102 on the motor 13. If the height of the groove wall is too large, it will reduce the overall strength of the groove wall. The limiting block 1124 and the rib 1111 together form the groove wall of the mounting groove 102, which not only facilitates the installation and positioning of the motor 13, but also ensures the overall strength of the groove wall of the mounting groove 102.

[0104] It should be noted that the limit block 1124 can also protect the motor 13 from dust. The output shaft of the motor 13 passes through the limit block 1124 and is connected to the worm gear 14.

[0105] like Figure 7 As shown, the lower cover rib includes a first stop 1121 and a second stop 1122. The first stop 1121 is located near the lock opening 101 to protect the gear 15 from dust, sand, etc.; the second stop 1122 is located at the end of the output shaft of the motor 13 to protect the motor 13 and the worm gear 14 from dust, sand, etc.

[0106] In some embodiments, such as Figure 5 As shown, the second stop 1122 has an insertion port 1123 on the side facing the motor 13, into which the end of the output shaft of the motor 13 is inserted. The output shaft of the motor 13 is located in the insertion port 1123 so that the second stop 1122 supports the rotation of the output shaft of the motor 13, thereby increasing the smoothness of power transmission.

[0107] It should be noted that when the transmission mechanism is a worm 14 and a gear 15, since the worm 14 is connected to the output shaft of the motor 13, in some embodiments, the end of the worm 14 away from the motor 13 is located in the insertion port 1123 so that the second stop 1122 supports the rotation of the worm 14 and the output shaft of the motor 13.

[0108] like Figure 5 As shown, the insertion port 1123 is set through the second stop 1122 along the direction of the lower cover 112 toward the upper cover 111, so that the insertion port 1123 is a through opening at the top of the second stop 1122; the end of the upper cover rib 161 away from the motor 13 opens from the top of the second stop 1122 and is set in the insertion port 1123, so as to realize the positioning and connection between the upper cover 111 and the lower cover 112.

[0109] It should be noted that the second stop 1122 can not only block dust from the worm 14 and / or gear 15, but also support the rotation of the worm 14 to ensure the smoothness of the rotation of the worm 14. In addition, it can also position and connect the upper cover 111 and the lower cover 112.

[0110] like Figure 8 As shown, the limiting block 1124, the upper cover rib 161, the second stop block 1122 and the first stop block 1121 are arranged along the outer periphery of the worm 14 and the gear 15 to effectively prevent dust and sand particles from contacting the worm 14 and the gear 15, thus effectively preventing dust from entering the worm 14 and the gear 15.

[0111] The upper cover 111 and the lower cover 112 are also fixedly connected by fasteners such as bolts or screws. This is a conventional technical means in this field and will not be described in detail.

[0112] Setting up a dust barrier 16 inside the housing 11 will occupy some of the internal space of the housing 11. The dust barrier 16 may also affect the operation of other components. In some embodiments, in order not to increase the size of the housing 11 and / or to avoid the dust barrier 16 affecting the normal operation of other components, the reset switch, reset resistor, collision unlocking rocker arm, collision unlocking switch, collision unlocking linkage, collision unlocking spring and other components in the prior art are eliminated from the rear door lock body 1 without affecting the normal locking and unlocking operation of the rear door lock body 1. Eliminating irrelevant components can also make the rear door lock body 1 lighter.

[0113] It should be noted that the working principle of the rear door lock body 1, and how the motor 13 drives the bolt 12 to perform unlocking and locking actions through the transmission mechanism or the transmission mechanism and the connecting mechanism, are existing technologies in this field and will not be elaborated here.

[0114] The aforementioned rear door lock body 1 not only provides excellent dust protection for the motor 13, worm gear 14, and gear 15, ensuring high reliability and stability in their operation, but also boasts a lightweight overall design.

[0115] like Figure 9 As shown, based on the aforementioned rear door lock body 1, this application also provides a rear door lock body assembly, including the aforementioned rear door lock body 1 and an actuator 4; the rear door lock body 1 is connected to an ice-breaking cable 3 and a self-closing cable 2, which are connected to the latch 12; the actuator 4 is connected to the end of the ice-breaking cable 3 and the self-closing cable 2 away from the rear door lock body 1, and the actuator 4 is used to drive the latch 12 to lock or unlock in a non-mechanical manner. Specifically, the actuator 4 unlocks the latch 12 by pulling the latch 12 through the ice-breaking cable 3, and locks the latch 12 by pulling the latch 12 through the self-closing cable 2.

[0116] Actuator 4 can control the locking tongue 12 to unlock or lock via ice-breaking pull line 3 and self-closing pull line 2, eliminating the need for manual operation and increasing the convenience of unlocking or locking.

[0117] like Figure 10 As shown, the housing 11 is provided with a first pull cable opening and a second pull cable opening. The first pull cable opening is used for the ice-breaking pull cable 3 to extend into the housing 11 and connect with the locking tongue 12; the second pull cable opening is used for the self-closing pull cable 2 to extend into the housing 11 and connect with the locking tongue 12.

[0118] It should be noted that external dust, sand, etc., can easily enter the housing 11 through the first and / or second cable openings. In order to prevent dust entering the housing 11 through the first and / or second cable openings from affecting the operation of the worm gear 14 and gear 15, in this application, the first and second cable openings are located on the side of the lock opening 101 away from the dust baffle wall 16, so that the dust baffle wall 16 can simultaneously block dust from the first and / or second cable openings and / or lock opening 101.

[0119] In some embodiments, the ice-breaking pull cable 3 and the self-closing pull cable 2 are connected to the locking tongue 12 via a cam (not shown in the figure). The ice-breaking pull cable 3 and the self-closing pull cable 2 pull the cam to rotate, causing the cam to drive the locking tongue 12 to move, thereby unlocking or locking.

[0120] Based on the above-mentioned tailgate lock assembly, this application also provides a vehicle, including the above-mentioned tailgate lock assembly, a vehicle body and a tailgate; the tailgate is installed on the vehicle body and is located at the rear of the vehicle body.

[0121] The tailgate lock body 1 is installed on the tailgate of the vehicle, and the lock rod is installed on the vehicle body at the corresponding position of the tailgate lock body 1. The position of the lock rod on the vehicle body corresponds to the position of the tailgate lock body 1 on the tailgate. Through the cooperation of the tailgate lock body 1 and the lock rod, the tailgate can be locked and unlocked. The tailgate lock body 1 is not only convenient to lock and unlock, but also highly reliable in operation, which can avoid the problem of being unable to lock or unlock due to dust or sand particles entering the lock body 1.

[0122] In some embodiments, the tailgate lock body 1 is installed on the vehicle body, and the lock rod is installed on the tailgate of the vehicle at a position corresponding to the tailgate lock body 1, so that the setting position of the lock rod on the tailgate corresponds to the setting position of the tailgate lock body on the vehicle body.

[0123] It should be noted that actuator 4 is mounted on the vehicle body.

[0124] It should also be noted that when the latch 12 is separated from the lock bar and the rear door is not locked, dust can easily enter the housing 11 from the lock opening 101 and / or the cable opening. When the latch 12 is connected to the lock bar, the rear door is locked, the lock opening 101 and / or the cable opening is located on the inside of the rear door, and the rear door will block the lock opening 101 and / or the cable opening, so less dust enters the housing 11 from the lock opening 101 and / or the cable opening.

[0125] Through the description of several embodiments of the tailgate lock body 1, tailgate lock body assembly, and vehicle of this application, it can be seen that the tailgate lock body 1, tailgate lock body assembly, and vehicle embodiments of this application have at least one or more of the following advantages:

[0126] 1. By setting a dust-blocking wall 16 inside the housing 11, the dust-blocking wall 16 is located in the area where the motor 13, worm gear 14 and gear 15 are located, so as to use the dust-blocking wall 16 to block the motor 13, worm gear 14 and gear 15, thereby reducing the problem of failure to lock caused by dust entering the housing 11.

[0127] 2. The dust barrier 16 formed by the upper cover rib 161 and the lower cover rib isolates the worm gear 14 and gear 15 from the lock port 101, which can greatly reduce or prevent dust entering the housing 11 from the lock port 101 and / or the pull cable port from contacting the worm gear 14 and / or gear 15.

[0128] 3. By providing a mounting groove 102 inside the housing 11, the motor 13 is placed inside the mounting groove 102, so that the groove wall of the mounting groove 102 can be used to protect the motor 13 from dust.

[0129] 4. The second stop 1122 can not only block dust from the worm 14 and / or gear 15, but also support the rotation of the worm 14 to ensure the smoothness of the rotation of the worm 14. In addition, it can also position and connect the upper cover 111 and the lower cover 112.

[0130] 5. The rear door lock body 1 eliminates irrelevant components such as the reset switch, reset resistor, collision unlocking rocker arm, collision unlocking switch, collision unlocking linkage, and collision unlocking spring found in the prior art, thereby making the rear door lock body 1 lighter and reducing costs and weight.

[0131] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A rear door lock body, characterized in that, include: The housing (11) has a lock opening (101); A latch (12), at least part of which is located inside the housing (11), is connected to the latch (12) and / or a locking bar located on other components by passing through the lock opening (101); The motor (13) is located inside the housing (11). The motor (13) is connected to a transmission mechanism. The transmission mechanism transmits the power output by the motor (13) in a meshing manner to drive the locking tongue (12) to move. A dust barrier (16) is provided inside the housing (11), with one side of the dust barrier (16) facing the lock opening (101) and the other side of the dust barrier (16) facing away from the lock opening (101); The motor (13) and / or the transmission mechanism are located on the side of the dust barrier (16) away from the lock opening (101).

2. The rear door lock body according to claim 1, characterized in that, The transmission mechanism includes a worm (14) and a gear (15). The worm (14) is connected to the output shaft of the motor (13). The gear (15) is rotatably connected to the housing (11). The gear (15) meshes with the worm (14). The gear (15) is connected to the locking tongue (12).

3. The rear door lock body according to claim 2, characterized in that, The dust barrier (16) extends from the motor (13) along the axial direction of the worm (14), and after extending to the end of the worm (14) away from the motor (13), it is set with the side wall of the lock slot (101) facing the housing (11). Wherein, a section of the dust-blocking wall (16) extending axially along the worm (14) is located on the side of the worm (14) away from the gear (15); a section of the dust-blocking wall (16) extending toward the side wall of the housing (11) where the lock opening (101) is opened is located on the side of the gear (15) toward the lock opening (101).

4. The rear door lock body according to claim 1, characterized in that, The housing (11) includes an upper cover (111) and a lower cover (112), wherein the upper cover (111) and the lower cover (112) are detachably connected to each other; The upper cover (111) has an upper cover rib (161) on the side facing the lower cover (112), and the lower cover (112) has a lower cover rib on the side facing the upper cover (111). The upper cover rib (161) and the lower cover rib are arranged along the extension direction of the dust barrier (16) to jointly define the dust barrier (16).

5. The rear door lock body according to claim 4, characterized in that, The lower cover rib includes a first stop (1121) and a second stop (1122). The first stop (1121) is located near the lock opening (101), and the second stop (1122) is located at the end of the output shaft of the motor (13).

6. The rear door lock body according to claim 5, characterized in that, The second stop (1122) has an insertion port (1123) on the side facing the motor (13) for inserting the end of the output shaft of the motor (13) so that the second stop (1122) supports the rotation of the output shaft of the motor (13).

7. The rear door lock body according to claim 6, characterized in that, The insertion port (1123) is provided through the second stop (1122) in the direction from the lower cover (112) toward the upper cover (111); The end of the upper cover rib (161) away from the motor (13) is located in the insertion port (1123) to position or connect the upper cover (111) and the lower cover (112).

8. The rear door lock body according to claim 1, characterized in that, The housing (11) is provided with a mounting groove (102), which is located inside the housing (11). The motor (13) is located inside the mounting groove (102), and the output shaft of the motor (13) passes through the groove wall of the mounting groove (102) and is connected to the transmission mechanism.

9. A rear door lock assembly, characterized in that, include: The rear door lock body as described in any one of claims 1 to 8, wherein the rear door lock body is connected to an ice-breaking pull line (3) and a self-closing pull line (2), wherein the ice-breaking pull line (3) and the self-closing pull line (2) are connected to the latch (12); Actuator (4), which is connected to the end of the ice-breaking pull line (3) and the self-closing pull line (2) away from the rear door lock body; The actuator (4) unlocks the latch (12) by pulling the ice-breaking pull line (3), and the actuator (4) locks the latch (12) by pulling the self-closing pull line (2).

10. A vehicle, characterized in that, include: The rear door lock assembly as described in claim 9; Body; A tailgate, the tailgate being mounted on the vehicle body; The tailgate lock body (1) is installed on the tailgate, the lock rod is installed on the vehicle body, and the lock rod is set at a position on the vehicle body corresponding to the tailgate lock body (1) at a position on the tailgate. Alternatively, the tailgate lock body (1) is installed on the vehicle body, the lock rod is installed on the tailgate, and the lock rod is positioned on the tailgate in a manner corresponding to the tailgate lock body (1) on the vehicle body.

Images