Door lock structure and vehicle having the same
By introducing the synchronous movement of a ratchet and a slider into the vehicle door lock structure and using a dual-position switch to confirm the locking status, the problem of low accuracy in vehicle door lock detection is solved, achieving higher judgment accuracy and security.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AVATR CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-07
AI Technical Summary
The existing technology has a low accuracy rate in detecting the locking status of vehicle doors, which affects driving safety and the effectiveness of in-vehicle protection.
The door lock structure includes a housing, a first position switch, a second position switch, a ratchet, and a slider. By using the synchronous movement of the ratchet and the slider, and by using the first and second position switches to confirm the position of the latch, the accuracy of the locking state determination is improved.
The dual confirmation mechanism significantly improves the accuracy of the vehicle's door lock status determination, reduces the probability of misjudgment, and enhances the vehicle's safety and protection capabilities.
Smart Images
Figure CN224468960U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle technology, and in particular to a door lock structure and a vehicle having the same. Background Technology
[0002] As vehicle technology advances, vehicles are able to perform more and more functions. When a car door is closed, the vehicle will usually detect whether the door lock is properly engaged. This can improve safety during driving and protect the interior space of the vehicle after the user leaves. However, the accuracy of vehicle door lock detection is relatively low in related technologies. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention provides a door lock structure that can improve the accuracy of a vehicle's door locking status determination.
[0004] This utility model also proposes a vehicle having the above-mentioned door lock structure.
[0005] According to a first aspect of the present invention, a door lock structure includes: a housing, a first position switch and a second position switch, both the first position switch and the second position switch being disposed on the housing; a ratchet, the ratchet being rotatably disposed on the housing between a first position and a second position along a first direction, the ratchet being adapted to rotate from the first position to the second position under the push of a latch on a vehicle door; a slider, the slider being movably disposed on the housing between a third position and a fourth position, the slider being adapted to move from the third position to the fourth position under the push of the latch; the door lock structure has an unlocked state and a locked state, in the unlocked state the ratchet is located in the first position and the slider is located in the third position, in the locked state the ratchet is located in the second position and the ratchet triggers the first position switch, the slider is located in the fourth position and the slider triggers the second position switch.
[0006] According to the door lock structure of the first aspect of this utility model, when the car door is locked, the positions of the ratchet and the slider that move synchronously with the latch are confirmed by the first position switch and the second position switch, respectively. This can improve the accuracy of the vehicle's judgment of the door lock status. In addition, the surface of the slider is relatively regular, and the probability of the slider accurately triggering the second position switch is relatively high.
[0007] According to some embodiments of the present invention, the door lock structure further includes: a first reset member connected between the slider and the housing, the first reset member being configured to apply a force to the slider from the fourth position toward the third position.
[0008] According to some embodiments of the present invention, a guide channel extending along the first direction is formed on the housing, the latch is adapted to move within the guide channel, at least a portion of the slider is located within the guide channel, and a portion of the ratchet is located within the guide channel.
[0009] According to some embodiments of the present invention, a guide hole is formed on the slider, which passes through the slider in the first direction. The door lock structure further includes a guide shaft, which is disposed on the housing and extends along the first direction. The slider is movably sleeved on the guide shaft through the guide hole.
[0010] According to some embodiments of the present invention, a guide groove communicating with the guide channel is formed on one inner wall of the guide channel, the guide groove extends along the first direction, and the guide shaft is mounted between the two inner walls of the guide groove in the first direction.
[0011] According to some embodiments of the present invention, the first reset member is a reset spring, the first reset member is sleeved on the guide shaft, and the first reset member is connected between the slider and the inner wall of the guide groove on one side in the first direction.
[0012] According to some embodiments of the present invention, the door lock structure further includes: a second reset member, the second reset member being connected between the ratchet and the housing, the second reset member being configured to apply a force to the ratchet to rotate the ratchet from the second position to the first position.
[0013] According to some embodiments of the present invention, the door lock structure further includes a pawl, which is rotatably disposed on the housing between a fifth position and a sixth position. In the unlocked state, the pawl is located in the fifth position, and in the locked state, the pawl is located in the sixth position, and the pawl locks the ratchet in the second position.
[0014] According to some embodiments of the present invention, the door lock structure further includes: a third reset member, the third reset member being connected between the pawl and the housing, the third reset member being configured to apply a force to the pawl to rotate the pawl from the sixth position to the fifth position.
[0015] The vehicle according to the second aspect of the present invention includes: a vehicle infotainment system; and the door lock structure according to the first aspect of the present invention, wherein the first position switch and the second position switch are both electrically connected to the vehicle infotainment system.
[0016] According to the second aspect of the present invention, by providing the door lock structure according to the first aspect of the present invention, the accuracy of the vehicle's determination of the door locking status can be improved.
[0017] Additional aspects and advantages of this invention 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 the invention. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of a door lock structure according to an embodiment of the present utility model;
[0019] Figure 2 This is a schematic diagram of a door lock structure according to an embodiment of the present utility model, excluding the cover plate;
[0020] Figure 3 yes Figure 2 The diagram shown does not include the cover plate, ratchet, and pawl.
[0021] Figure 4 This is a schematic diagram of a door lock structure according to another embodiment of the present invention, excluding the cover plate;
[0022] Figure 5 yes Figure 4 The diagram shown does not include the cover plate, ratchet, and pawl.
[0023] Figure 6 This is an exploded view of the door lock structure according to an embodiment of the present utility model, excluding the cover plate.
[0024] Figure label:
[0025] 100. Door lock structure;
[0026] 10. Housing; 11. Guide channel; 12. Guide groove; 13. First rotating hole; 14. Second rotating hole;
[0027] 20. First position switch;
[0028] 30. Second position switch;
[0029] 40. Ratchet; 41. Second pin;
[0030] 50. Slider; 51. First reset component; 52. Guide hole; 53. Guide shaft;
[0031] 60. Pawl; 61. First pin;
[0032] 70. Cover plate;
[0033] 80. First buffer; 81. Second buffer; 82. Third buffer; 83. Fourth buffer. Detailed Implementation
[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0035] The following is for reference. Figures 1-6 A door lock structure 100 according to a first aspect embodiment of the present invention is described.
[0036] like Figures 2-6 As shown, the door lock structure 100 according to the first aspect embodiment of the present utility model includes: a housing 10, a first position switch 20, a second position switch 30, a ratchet 40, and a slider 50.
[0037] Specifically, the first position switch 20 and the second position switch 30 are both disposed on the housing 10. The ratchet 40 is rotatably disposed on the housing 10 between the first position and the second position along a first direction. The ratchet 40 is adapted to rotate from the first position to the second position under the push of the latch on the door. The slider 50 is movably disposed on the housing 10 between the third position and the fourth position. The slider 50 is adapted to move from the third position to the fourth position under the push of the latch. The door lock structure 100 has an unlocked state and a locked state. In the unlocked state, the ratchet 40 is located in the first position and the slider 50 is located in the third position. In the locked state, the ratchet 40 is located in the second position and the ratchet 40 triggers the first position switch 20. The slider 50 is located in the fourth position and the slider 50 triggers the second position switch 30.
[0038] This application does not limit the type of vehicle. For example, the vehicle in this application can be a sedan, an off-road vehicle, a multi-purpose vehicle (MPV), or other types of vehicles.
[0039] With the car door open, ratchet 40 is in the first position and slider 50 is in the second position. When closing the car door, the latch gradually extends into the door lock structure 100. Under the push of the latch, ratchet 40 gradually rotates from the first position to the second position, while slider 50 gradually moves from the third position to the fourth position. When ratchet 40 reaches the second position, it triggers the first position switch 20, causing ratchet 40 to engage the latch and lock the car door. Simultaneously, slider 50 reaches the fourth position and triggers the second position switch 30. After receiving signals from the first position switch 20 and the second position switch 30, the vehicle system determines that the car door is locked in place.
[0040] Understandably, during the door locking process, the positions of the slider 50 and ratchet 40, which move synchronously with the latch, are double-confirmed. The probability of the ratchet 40 accidentally triggering the first position switch 20 and the slider 50 accidentally triggering the second position switch 30 is low. Thus, the probability of the vehicle system making an incorrect judgment when determining the door locking status is also low.
[0041] By setting the slider 50, compared with the latch, the surface of the slider 50 is more regular and the contact area between the slider 50 and the second position switch 30 is also larger. In this way, the probability that the slider 50 can accurately trigger the second position switch 30 is also higher during the closing process.
[0042] Preferably, both the first position switch 20 and the second position switch 30 are contact microswitches.
[0043] According to the door lock structure 100 of the first aspect of the present invention, when the door is locked, the positions of the ratchet 40 and the slider 50 that move synchronously with the latch are confirmed by the first position switch 20 and the second position switch 30, respectively. This can improve the accuracy of the vehicle's determination of the door lock status. In addition, the surface of the slider 50 is relatively regular, and the probability of the slider 50 accurately triggering the second position switch 30 is relatively high.
[0044] In some embodiments of this utility model, such as Figure 3 , Figure 5 and Figure 6 As shown, the door lock structure 100 further includes a first reset member 51, which is connected between the slider 50 and the housing 10. The first reset member 51 is configured to apply a force to the slider 50 from a fourth position toward a third position.
[0045] During the locking process of the car door, the latch gradually pushes the slider 50 from the third position to the fourth position. At the same time, the first reset member 51 applies a force to the slider 50 from the fourth position toward the third position. When the slider 50 reaches the fourth position, the latch engages with the ratchet 40.
[0046] After the car door is unlocked, the latch disengages from the door lock structure 100. Under the action of the first reset member 51, the slider 50 moves from the fourth position to the third position. When the car door is locked again, the slider 50 can cooperate normally with the latch.
[0047] By setting the first reset component 51, the slider 50 can be automatically reset after the door is unlocked, so that the vehicle can make a normal judgment on the next door lock status.
[0048] In some embodiments of this utility model, such as Figures 1-6As shown, a guide channel 11 extending in a first direction is formed on the housing 10, the latch is adapted to move within the guide channel 11, at least a portion of the slider 50 is located within the guide channel 11, and a portion of the ratchet 40 is located within the guide channel 11.
[0049] In other words, it is possible for part of the slider 50 to be located within the guide channel 11, or for the entire slider 50 to be located within the guide channel 11.
[0050] During the door locking process, the latch gradually extends into the guide channel 11, pushing the slider 50 and ratchet 40 within the guide channel 11. This causes the ratchet 40 to gradually rotate from the first position to the second position, and the slider 50 to gradually move from the third position to the fourth position. By providing the guide channel 11, the latch can be guided and limited, allowing it to extend into the door lock structure 100 along a predetermined path. This reduces the probability of incorrect engagement between the latch and the door lock structure 100, thus improving the reliability of the door lock structure 100 in locking the door.
[0051] In some embodiments of this utility model, such as Figure 3 , Figure 5 and Figure 6 As shown, a guide hole 52 is formed on the slider 50 through the slider 50 in a first direction. The door lock structure 100 also includes a guide shaft 53, which is disposed on the housing 10 and extends along the first direction. The slider 50 is movably sleeved on the guide shaft 53 through the guide hole 52.
[0052] During the movement of slider 50 in the third and fourth positions, guide shaft 53 can guide and limit slider 50, so that slider 50 moves on a set path, reducing the probability of slider 50 shifting position within housing 10, thereby reducing the probability of slider 50 failing in door lock structure 100 and improving the reliability of door lock structure 100 during operation.
[0053] In this configuration, the slider 50 is fitted onto the guide shaft 53. On the one hand, the guide shaft 53 limits the slider 50 in its circumferential direction, which can improve the guiding and limiting effect of the guide shaft 53 on the slider 50. On the other hand, the force distribution between the guide shaft 53 and the slider 50 is relatively uniform, which can improve the stability of the slider 50 during movement. In addition, the limiting fit between the slider 50 and the guide shaft 53 has high reliability.
[0054] In some embodiments of this utility model, such as Figure 3 , Figure 5 and Figure 6 As shown, a guide groove 12 communicating with the guide channel 11 is formed on one inner wall of the guide channel 11. The guide groove 12 extends along the first direction, and the guide shaft 53 is mounted between the two inner walls of the guide groove 12 in the first direction.
[0055] In this design, a portion of the slider 50 extends from the guide groove 12 into the guide channel 11. By providing the guide groove 12, on the one hand, space can be provided for the guide shaft 53 and the slider 50; on the other hand, during the movement of the slider 50, the guide groove 12 can also guide and limit the slider 50. This further reduces the probability of the slider 50 deviating within the housing 10, improves the reliability of the door lock structure 100 during operation, and enhances the stability of the slider 50 during movement.
[0056] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, the first reset member 51 is a reset spring. The first reset member 51 is sleeved on the guide shaft 53 and is connected between the slider 50 and the inner wall of the guide groove 12 on one side in the first direction.
[0057] In this way, during the movement of slider 50, the force exerted by the first reset member 51 on slider 50 is more evenly distributed, which can further improve the stability of slider 50 during movement.
[0058] In some embodiments of the present invention, the door lock structure 100 further includes a second reset member, which is connected between the ratchet 40 and the housing 10, and is configured to apply a force to the ratchet 40 to rotate the ratchet 40 from a second position to a first position.
[0059] During the door locking process, the latch pushes the ratchet 40 to gradually rotate from the first position to the second position. Simultaneously, the second reset member applies a force to the ratchet 40, causing it to rotate from the second position to the first position. After the door unlocks, the latch disengages from the door lock structure 100. Under the action of the second reset member, the ratchet 40 rotates from the second position to the first position. The next time the door is locked, the ratchet 40 can normally engage with the latch.
[0060] By setting a second reset component, the ratchet 40 can automatically reset after the door is unlocked, so that the door lock structure 100 can lock the door normally when the door is closed again, and the vehicle can make a normal judgment on the door locking status for the next time.
[0061] Preferably, the second reset element is a torsion spring.
[0062] In some embodiments of this utility model, such as Figure 2 and Figure 4As shown, the door lock structure 100 also includes a pawl 60, which is rotatably disposed on the housing 10 between a fifth position and a sixth position. In the unlocked state, the pawl 60 is located in the fifth position, and in the locked state, the pawl 60 is located in the sixth position, and the pawl 60 locks the ratchet 40 in the second position.
[0063] During the door locking process, the latch extends into the guide channel 11 and pushes the ratchet 40 and the slider 50, causing the ratchet 40 to gradually rotate from the first position to the second position. The ratchet 40 locks the latch and triggers the first position switch 20. The slider 50 moves from the third position to the fourth position and triggers the second position switch 30. At the same time, the pawl 60 rotates from the fifth position to the sixth position, locking the ratchet 40 in the second position.
[0064] After the door is unlocked, the latch disengages from the door lock structure 100, the pawl 60 releases the lock on the ratchet 40, the ratchet 40 gradually returns to the first position from the second position, the slider 50 returns to the third position from the fourth position, and the pawl 60 returns to the fifth position from the sixth position, so that the next door locking can be performed smoothly.
[0065] By setting a pawl 60, which locks the ratchet 40 in the second position, the reliability of the ratchet 40 locking the latch can be improved, thereby improving the reliability of the door lock.
[0066] The door lock structure 100 also includes a first pin 61 and a second pin 41. A first rotating hole 13 and a second rotating hole 14 are formed on the housing 10. The pawl 60 is rotatably connected to the housing 10 by engaging the first pin 61 in the first rotating hole 13. The ratchet 40 is rotatably connected to the housing 10 by engaging the second pin 41 in the second rotating hole 14.
[0067] In some embodiments of the present invention, the door lock structure 100 further includes a third reset member, which is connected between the pawl 60 and the housing 10, and is configured to apply a force to the pawl 60 to rotate the pawl 60 from the sixth position to the fifth position.
[0068] By setting a third reset component, the pawl 60 can be automatically reset during the locking and unlocking process of the door, and the reliability of the pawl 60 locking the ratchet 40 can be improved.
[0069] Preferably, the third reset element is a torsion spring.
[0070] In some embodiments of this utility model, such as Figure 3 , Figure 5 and Figure 6As shown, the door lock structure 100 also includes: a first buffer 80, a second buffer 81, a third buffer 82 and a fourth buffer 83. The first buffer 80 and the second buffer 81 abut against the pawl 60 and the housing 10 in the fifth and sixth positions, respectively. In the locked state, the third buffer 82 abuts against the latch and the housing 10, and the fourth buffer 83 abuts against the ratchet 40 and the housing 10.
[0071] By setting the first buffer 80, the second buffer 81, the third buffer 82 and the fourth buffer 83, the moving parts of the door lock structure 100 can be buffered during operation. On the one hand, the impact on the door lock structure 100 is reduced, which can improve the reliability of the door lock structure 100 during operation. On the other hand, the noise of the door lock structure 100 during operation can be reduced.
[0072] In some embodiments of this utility model, such as Figure 1 As shown, the door lock structure 100 also includes a cover plate 70, which cooperates with the housing 10 to define an installation cavity. The ratchet 40, pawl 60, slider 50, first position switch 20 and second position switch 30 are all located in the installation cavity. By providing the cover plate 70, the components inside the door lock structure 100 can be protected, thereby further improving the reliability of the door lock structure 100 during operation.
[0073] The vehicle according to the second aspect of the present invention includes: a vehicle infotainment system and the door lock structure 100 according to the first aspect of the present invention, wherein the first position switch 20 and the second position switch 30 are both electrically connected to the vehicle infotainment system.
[0074] When the door is closed, the latch pushes the ratchet 40 to rotate from the first position to the second position and triggers the first position switch 20. The ratchet 40 locks the latch in the second position. At the same time, the latch pushes the slider 50 to move from the third position to the fourth position and triggers the second position switch 30. When the vehicle system receives the dual signals from the first position switch 20 and the second position switch 30, it determines that the door is locked in place.
[0075] According to the second aspect of the present invention, by providing the door lock structure 100 according to the first aspect of the present invention, the accuracy of the vehicle's determination of the door locking status can be improved.
[0076] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "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 are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.
[0077] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0078] In this utility model, unless otherwise explicitly 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 communication connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0079] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. 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.
[0080] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A door lock structure (100), characterized in that, include: The housing (10), the first position switch (20), and the second position switch (30) are both disposed on the housing (10); A ratchet (40) is rotatably disposed on the housing (10) along a first direction between a first position and a second position. The ratchet (40) is adapted to rotate from the first position to the second position under the push of a latch on the door. A slider (50) is movably disposed on the housing (10) between a third position and a fourth position, and the slider (50) is adapted to move from the third position to the fourth position under the push of the latch; The door lock structure (100) has an unlocked state and a locked state. In the unlocked state, the ratchet (40) is located in the first position and the slider (50) is located in the third position. In the locked state, the ratchet (40) is located in the second position and the ratchet (40) triggers the first position switch (20), the slider (50) is located in the fourth position and the slider (50) triggers the second position switch (30).
2. The door lock structure (100) according to claim 1, characterized in that, The door lock structure (100) further includes a first reset member (51) connected between the slider (50) and the housing (10), the first reset member (51) being configured to apply a force to the slider (50) from the fourth position toward the third position.
3. The door lock structure (100) according to claim 2, characterized in that, A guide channel (11) extending along the first direction is formed on the housing (10), the latch is adapted to move within the guide channel (11), at least a portion of the slider (50) is located within the guide channel (11), and a portion of the ratchet (40) is located within the guide channel (11).
4. The door lock structure (100) according to claim 3, characterized in that, The slider (50) has a guide hole (52) that passes through the slider (50) in the first direction. The door lock structure (100) further includes a guide shaft (53), which is disposed on the housing (10) and extends along the first direction. The slider (50) is movably sleeved on the guide shaft (53) through the guide hole (52).
5. The door lock structure (100) according to claim 4, characterized in that, A guide groove (12) communicating with the guide channel (11) is formed on one side inner wall of the guide channel (11). The guide groove (12) extends along the first direction, and the guide shaft (53) is mounted between the two inner walls of the guide groove (12) in the first direction.
6. The door lock structure (100) according to claim 5, characterized in that, The first reset member (51) is a reset spring. The first reset member (51) is sleeved on the guide shaft (53). The first reset member (51) is connected between the slider (50) and the inner wall of the guide groove (12) on one side in the first direction.
7. The door lock structure (100) according to claim 1, characterized in that, The door lock structure (100) further includes a second reset member connected between the ratchet (40) and the housing (10), the second reset member being configured to apply a force to the ratchet (40) to rotate the ratchet (40) from the second position to the first position.
8. The door lock structure (100) according to claim 1, characterized in that, The door lock structure (100) further includes a pawl (60), which is rotatably disposed on the housing (10) between a fifth position and a sixth position. In the unlocked state, the pawl (60) is located in the fifth position, and in the locked state, the pawl (60) is located in the sixth position, and the pawl (60) locks the ratchet (40) in the second position.
9. The door lock structure (100) according to claim 8, characterized in that, The door lock structure (100) further includes a third reset member connected between the pawl (60) and the housing (10), the third reset member being configured to apply a force to the pawl (60) to rotate the pawl (60) from the sixth position to the fifth position.
10. A vehicle, characterized in that, include: In-vehicle infotainment system; The door lock structure (100) according to any one of claims 1-9, wherein the first position switch (20) and the second position switch (30) are both electrically connected to the vehicle infotainment system.