Lifting skylight lock

Abstract

The invention belongs to the technical field of automobile door locks, and provides a lifting skylight lock which comprises a lock body capable of being opened or closed; the electric driving part is used for electrically driving the lock body to open; the emergency opening part is used for cutting off the connection between the electric driving part and the lock body and opening the lock body at the same time; through cooperation of the lock body, the electric driving part and the emergency opening part, double actions of cutting off transmission connection and emergency opening of the lock body can be synchronously achieved through single-hand operation in a vehicle, operation is faster and more concise, when four skylight locks are arranged on the two sides of a skylight, first opening stay wires of the two locks on the single side are connected in parallel, and the purpose that a single person can open the skylight with two hands in the vehicle is achieved; the lock body and the electric driving part are respectively positioned on an XZ surface, and the emergency opening part is positioned on one side of the lock body and the electric driving part in the Y direction; the structure of the lock body is simplified, the size of the lock body is reduced, the requirement of the lock body for the skylight space is reduced, and the lock is suitable for the narrow installation environment of the skylight water chute.

Description

Technical Field

[0001] This invention relates to the field of automotive door lock technology, and in particular to a lift-up sunroof lock. Background Technology

[0002] Currently, car sunroofs open using a four-bar linkage mechanism driven by a motor. However, these sunroofs are relatively small and not panoramic, and cannot be opened manually. With the rise of road trips and the increasing demand for larger interior spaces, innovative sunroofs like lift-up sunroofs have emerged. These significantly increase interior space and greatly enhance the customer experience. These sunroofs require a lock to be mechanically locked to the vehicle body, and can be opened electrically or manually in emergencies.

[0003] Currently, the lock bodies used on car tailgates are basically L-shaped, with the lock body located on the XZ plane and the electric drive and separation parts located on the YZ plane. There are two manual emergency opening methods: one is to manually press the separation button on the actuator to separate the worm gear and gear, and at the same time pull the first opening cable to open the lock body; the other is to move the separation rocker arm to separate the worm gear and gear arm, and then rotate the opening rocker arm to open the lock body.

[0004] This type of lock is only suitable for tailgates with sufficient space in three directions. For liftgate locks, the lock body needs to be installed within the sunroof drainage channel, which has limited space in the Y and Z directions. Furthermore, the lock body is separated from the vehicle interior by a curtain. Applying a tailgate lock directly to a liftgate installation environment not only fails to fit the confined space of the drainage channel but also prevents the lock body from being opened without removing the curtain, thus preventing manual emergency opening of the sunroof. Therefore, a sunroof lock is needed that can fit into the sunroof drainage channel with limited space in the Y and Z directions, synchronizing the disconnection of the transmission connection with the emergency opening of the lock body, reducing the lock body's space requirements in the sunroof, and adapting to the narrow installation environment of the drainage channel. Summary of the Invention

[0005] The purpose of this invention is to overcome the existing defects and provide a lift-up sunroof lock with a compact lock body structure and small size, which can simultaneously cut off the transmission connection and open the lock body in an emergency.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: This invention provides a lift-up sunroof lock, comprising: The lock body is capable of being opened or closed; An electric drive unit is used to electrically drive the lock body to open; An emergency opening unit is used to disconnect the electric drive unit from the lock body and simultaneously open the lock body; The lock body and the electric drive unit are located on the XZ plane, and the emergency opening unit is located on the Y-direction side of the lock body and the electric drive unit.

[0007] Furthermore, the emergency activation unit includes: A pawl actuator is used to open the lock body; The first opening cable has one end connected to the pawl actuator and the other end extending away from the lock body. A gear actuator is used to disconnect the electric drive unit from the lock body; The second activation cable connects the pawl actuator and the gear actuator, so that the gear actuator and the pawl actuator move synchronously.

[0008] Furthermore, the gear actuating element includes: The first shift fork is disposed at one end of the gear actuator; The second shift fork is disposed at the other end of the gear actuator; The shift fork rotation part is arranged on the first shift fork part along the Z direction; The first shift fork return spring is used for the elastic return of the gear shifting component; Specifically, when the gear actuator rotates to one side around the shift fork rotation part, the second shift fork part cuts off the connection between the electric drive part and the lock body, and the torque of the first shift fork return spring increases.

[0009] Furthermore, the second activation cable also includes: The first connector is located at one end of the second opening cable and is movably connected to the pawl actuator. The second connector is located at the other end of the second opening cable and is movably connected to the gear actuator.

[0010] Furthermore, the gear actuating element also includes: The first waist hole is located in the middle of the gear actuating component, and the second connector is slidably disposed within the first waist hole.

[0011] Furthermore, The lock body includes: The pawl shaft is arranged along the Y direction, and one end of it is equipped with a pawl that rotates synchronously with it; A pawl linkage arm is configured on the pawl shaft and rotates synchronously with the pawl shaft. A second waist hole is provided on the pawl linkage arm, and the pawl actuating member is slidably connected to the second waist hole. A pawl return spring is used for the elastic return of the pawl. A ratchet shaft is arranged along the Y direction, and a ratchet that rotates synchronously with it is provided at one end. The ratchet can engage with the pawl. A ratchet return spring is used for the elastic return of the ratchet. The electric drive unit includes: The motor has a worm gear at its output end; The gear shaft is arranged along the Y direction; A primary transmission gear is sleeved on the gear shaft and is connected to the worm and the ratchet linkage arm respectively. A gear return spring is used for the elastic return of the primary transmission gear. When the motor drives the worm gear to rotate, the first-stage transmission gear rotates, the pawl connecting arm, the pawl shaft, and the pawl rotate synchronously, the pawl separates from the ratchet, the lock body opens, and the pawl actuating element slides in the second waist hole; When the pawl actuator moves to the X-direction, the pawl linkage arm, pawl shaft, and pawl rotate synchronously, the pawl separates from the ratchet, the lock body opens, and at the same time, the second shift fork on the gear actuator drives the primary transmission gear to move along the Y-direction, the primary transmission gear separates from the worm gear, and the spring force of the gear return spring increases.

[0012] Furthermore, a gear shim is provided between the primary transmission gear and the gear return spring.

[0013] Furthermore, the lock body also includes: The secondary transmission gear is arranged coaxially with the ratchet shaft and meshes with the primary transmission gear. An electrically operated rocker arm is sleeved on the pawl shaft, and a connecting arm paddle is provided on the side of the pawl connecting arm to contact the pawl connecting arm. The pull rod is connected between the secondary transmission gear and the electrically operated rocker arm. When the primary transmission gear rotates, the secondary transmission gear rotates, the pull rod pulls the electric opening rocker arm to rotate around the pawl shaft, the electric opening rocker arm drives the pawl connecting arm pawl shaft through the connecting arm paddle, the pawl rotates synchronously, and the lock body opens; When the pawl actuator moves toward the X-direction, the pawl linkage arm rotates and the linkage arm paddle moves away from the electrically operated rocker arm.

[0014] Furthermore, the lock body also includes: A spur gear is sleeved on the ratchet shaft and meshes with the secondary transmission gear; A ratchet push arm is arranged coaxially with the ratchet shaft and connected to the spur gear key. A stop plate is provided on the side of the ratchet push arm that can contact the side wall of the ratchet. When the lock body is closed, the ratchet contacts the stop plate.

[0015] Furthermore, the lock body also includes: A signal triggers the rocker arm, which is sleeved on the ratchet shaft; A ratchet pin is arranged parallel to the ratchet shaft, with its two ends connected to the ratchet and the signal trigger rocker arm, respectively. A pair of first microswitches are respectively disposed on the radial side of the signal-triggered rocker arm.

[0016] Furthermore, it also includes: The base plate, one end of the pawl shaft, one end of the ratchet shaft, and one end of the gear shaft are respectively rotatably mounted on the base plate; The cover plate is connected to the base plate by a cover plate pin, and the other end of the pawl shaft, the other end of the ratchet shaft, and the other end of the gear shaft are respectively rotatably mounted on the base plate; The base is used to mount a second micro switch corresponding to the pawl linkage arm and / or a third micro switch corresponding to the electrically operated rocker arm; The housing includes a first housing and a second housing combined together, for concealing the lock body, the electric drive unit and the emergency opening unit.

[0017] Beneficial effects: The lock body, electric drive unit, and emergency opening unit work together to simplify the structure of the lock body, reduce its size, and decrease the space required for the lock body in the skylight, making it suitable for installation environments with narrow skylight drainage channels. The system allows for simultaneous cutting off of the transmission connection and emergency unlocking of the lock body with a single hand inside the vehicle, making operation faster and simpler. When four sunroof locks are installed on both sides of the sunroof, the first unlocking cables of the two locks on each side are connected in parallel, allowing a single person inside the vehicle to open the sunroof with two hands. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a structural diagram of a sunroof lock without its first outer casing; Figure 2 This is a structural diagram of a sunroof lock; Figure 3 This is a diagram illustrating the use of two sunroof locks connected in series. Figure 4 This is a first-person view of the sunroof lock without its outer casing. Figure 5 This is a second-view structural diagram of the sunroof lock without its outer casing; Figure 6 This is an exploded view of the lock body; Figure 7 This is a diagram showing the relative positions of the ratchet push arm and the first micro switch when the lock body is opened; Figure 8This is a diagram showing the relative positions of the ratchet push arm and the first micro switch when the lock body is half-closed; Figure 9 This is a diagram showing the relative positions of the ratchet push arm and the first micro switch when the lock body is fully closed; Figure 10 This is a diagram showing the first relative position of the pawl linkage arm and the second micro switch; Figure 11 This is a diagram showing the second relative position of the pawl linkage arm and the second micro switch. Figure 12 This is a diagram showing the first relative position of the electric switch rocker arm and the third micro switch; Figure 13 This is a diagram showing the second relative position of the electric switch rocker arm and the third micro switch. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] like Figure 1 As shown, the present invention provides a lift-up sunroof lock, including a lock body, an electric drive unit, and an emergency opening unit; the lock body is capable of opening or closing; the electric drive unit is used to electrically drive the lock body to open; the emergency opening unit is used to disconnect the connection between the electric drive unit and the lock body and simultaneously open the lock body. The lock body and the electric drive unit are respectively located on the XZ plane, and the emergency opening unit is located on the Y-direction side of the lock body and the electric drive unit.

[0022] Appendix Figure 1 and attached Figure 2 The overall layout of the sunroof lift lock is clearly illustrated. The lock body is arranged along the X-axis, with the electric drive unit located on one side of the lock body in the X-axis direction and the emergency opening unit on the Y-axis side. Compared to the original lock body structure, the electric drive unit has been moved from the XY plane to the XZ plane, extending the length of the lock body in the X-axis direction without increasing the length in the Z-axis direction. To address the narrow structure of the sunroof drainage channel, the emergency opening unit has been moved from the Z-axis to the Y-axis of the lock body, using a single emergency opening unit to simultaneously complete both the connection disconnection and lock body opening actions. When two sunroof locks are installed on each side of the sunroof, please refer to the appendix. Figure 3 By connecting the two emergency opening parts on the same side together, the two sunroof locks on the same side can be opened simultaneously with one hand, that is, the four sunroof locks on both sides can be opened simultaneously with both hands, making the sunroof locks easier and faster to open.

[0023] Please see the appendix Figure 1The emergency opening unit described in this application includes a pawl actuator 1, a first opening cable 1-1, a gear actuator 2, and a second opening cable 3. The pawl actuator 1 is used to open the lock body. One end of the first opening cable 1-1 is connected to the pawl actuator 1, and the other end extends away from the lock body. The gear actuator 2 is used to disconnect the connection between the electric drive unit and the lock body. The second opening cable 3 connects the pawl actuator 1 and the gear actuator 2 so that the gear actuator 2 and the pawl actuator 1 operate synchronously.

[0024] Appendix Figure 1 This demonstrates a method of using a flexible cable connection structure to synchronize the actions of two pawl actuators. When the first opening cable 1-1 is pulled to the right, it pulls the pawl actuator 1 to the right, opening the lock body. Simultaneously, the pawl actuator 1 transmits power to the gear actuator 2 via the second opening cable 3, which then separates the lock body from the electric drive unit. The gear drive chain of the lock body can be separated with a single cable, allowing for reliable manual release of the lock body without the need for manual disengagement. This makes operation simple and convenient. The emergency opening mechanism has fewer components, simplifying the overall structure of the sunroof lock. The cable-linked structure of the emergency opening mechanism occupies a small volume, reducing the Y-axis length of the entire sunroof lock and thus its overall size. This reduces the space requirements of the sunroof lock, making it suitable for the narrow space of the sunroof drainage channel, minimizing space requirements on the vehicle's sheet metal, and facilitating OEM placement.

[0025] Please see the appendix Figure 4 The gear actuating member 2 includes a first shift fork portion, a second shift fork portion, a shift fork rotation portion 2-1, and a first shift fork return spring 2-2. The first shift fork portion is disposed at one end of the gear actuating member 2; the second shift fork portion is disposed at the other end of the gear actuating member 2; the shift fork rotation portion 2-1 is disposed on the first shift fork portion along the Z direction; the first shift fork return spring 2-2 is used for elastic reset of the gear actuating member 2; wherein, when the gear actuating member 2 rotates to one side around the shift fork rotation portion 2-1, the second shift fork portion cuts off the connection between the electric drive portion and the lock body, and the torque of the first shift fork return spring 2-2 increases.

[0026] Appendix Figure 1 and attached Figure 4 This demonstrates the specific operational process of the gear actuator 2 separating the lock body and the electric drive unit. In one embodiment, the pawl actuator 1 rotates the pawl 5 by pulling the pawl linkage arm 6, thereby disengaging the pawl 5 from the ratchet 9 to achieve emergency unlocking of the lock body. The gear actuator 2 separates the electric drive unit from the lock body by pressing the primary transmission gear 14 to separate it from the worm gear 12.

[0027] As a specific embodiment of the gear actuating component 2, the gear actuating component 2 has a fork rotating part 2-1 configured with one end as the rotation center. The fork rotating part 2-1 can be configured as a shaft, integrally formed with the gear actuating component 2 or used in combination. The fork rotating part 2-1 can also be configured as a hole, rotatably connected to the sunroof lock housing via a pin or shaft. The second fork part matches the surface of the primary transmission gear 14, preferably with a Y-shaped forked structure, avoiding the gear shaft 13 used to install the primary transmission gear 14. The first fork return spring 2-2 is coaxial with the fork rotating part 2-1, with one end abutting against the side wall of the gear actuating component 2 and the other end abutting against the inner wall of the sunroof lock housing. The first fork return spring 2-2 ensures that the gear actuating component 2 does not contact the primary transmission gear in the initial state, thereby avoiding friction between the gear actuating component 2 and the primary transmission gear 14 when the lock body is opened electrically.

[0028] See appendix Figure 4 During operation, pulling the first opening cable 1-1 to the left causes the pawl actuator 1 to pull the pawl linkage arm 6 to the left, causing the pawl linkage arm 6 to drive the pawl shaft 4 and pawl 5 to rotate, disengaging the pawl 5 from the ratchet 9 and opening the lock body in an emergency. The first opening cable 1-1, through the pawl actuator 1 and the second opening cable 3, drives the gear actuator 2 to rotate counterclockwise around the fork rotary part 2-1. The gear actuator 2 presses down on the primary transmission gear 14, separating it from the worm gear 12 and cutting off the connection between the lock body and the electric drive unit. The torque of the first fork return spring 2-2 increases. Releasing the first opening cable 1-1 causes the gear actuator 2 and the second opening cable 3 to reset under the torque of the first fork return spring 2-2, re-engaging the primary transmission gear 14 with the worm gear 12 and reconnecting the lock body and the electric drive unit.

[0029] Please see the appendix Figure 4 In one embodiment, to provide more space for the lock body and the electric drive unit, saving the space required for the emergency opening unit to function, while ensuring the functionality of the emergency opening unit, the second opening cable 3 further includes a first connector 3-1 and a second connector 3-2. The first connector 3-1 is disposed at one end of the second opening cable and is movably connected to the pawl actuator 1; the second connector 3-2 is disposed at the other end of the second opening cable and is movably connected to the gear actuator 2. The first connector 3-1 and the second connector 3-2 realize a flexible movable connection between the second opening cable 3 and the pawl actuator 1 and the gear actuator 2, which not only ensures the power transmission between the pawl actuator 1 and the gear actuator 2, but also simplifies the structure of the emergency opening unit and does not restrict the relative positional relationship between the gear actuator 2 and the pawl actuator 1.

[0030] Please see the appendix Figure 4In one embodiment, considering that the gear actuating component 2 should be prevented from moving when the sunroof lock is normally electrically driven to open the lock body, the gear actuating component 2 further includes a first waist hole 2-3; the first waist hole 2-3 is disposed in the middle of the gear actuating component 2, and the second connector 3-2 is slidably disposed in the first waist hole 2-3. (See attached diagram) Figure 4 The lock body is opened by rotating the pawl linkage arm 6, which drives the pawl shaft 4 and pawl 5 to rotate, and the pawl 5 disengages from the ratchet 9. The pawl actuator 1 is directly connected to the pawl linkage arm 6, or creates a chain reaction to indirectly drive the gear actuator 2 to rotate. Therefore, a first slotted hole 2-3 is provided on the gear actuator 2. When the lock body is opened, the pawl linkage arm 6 rotates counterclockwise, which in turn drives the pawl actuator 1 and the second opening cable 3 to move to the left. The second connector 3-2 will slide within the first slotted hole 2-3. This maintains the gear actuator 2 in a stopped state, prevents the second opening cable 3 from being pulled, and prevents the second opening cable 3 from disengaging from the gear actuator 2, thus providing a stable guarantee for the emergency opening mechanism.

[0031] To further ensure a stable connection between the second opening cable 3 and the gear actuator 2, a groove is formed along the centerline of the gear actuator 2. This groove communicates with the first waist hole 2-3, and the second opening cable 3 passes through this groove and connects to the second connector 3-2. This design ensures that the tension of the second opening cable 3 always acts on the center of the gear actuator 2, further maintaining uniform pressure when pressing against the primary transmission gear 14.

[0032] In one embodiment, please refer to the appendix. Figure 4 Appendix Figure 5 and attached Figure 6 The lock body includes a pawl shaft 4, a pawl 5, a pawl linkage arm 6, a pawl return spring 7, a ratchet shaft 8, a ratchet 9, and a ratchet return spring 10. The pawl shaft 4 is arranged along the Y direction, and one end of it is equipped with a pawl 5 that rotates synchronously with it. The pawl linkage arm 6 is arranged on the pawl shaft 4 and rotates synchronously with the pawl shaft 4. The pawl linkage arm 6 is provided with a second waist hole 6-1, and the pawl actuating member 1 is slidably connected to the second waist hole 6-1. The pawl return spring 7 is used for the elastic return of the pawl 5. The ratchet shaft 8 is arranged along the Y direction, and one end of it is equipped with a ratchet 9 that rotates synchronously with it. The ratchet 9 can engage with the pawl 5. The ratchet return spring 10 is used for the elastic return of the ratchet 8.

[0033] Appendix Figure 6An exploded view of the lock body structure is shown. When assembling the lock body, the pawl 5 is riveted and fixed to the pawl shaft 4, rotating synchronously with the pawl shaft 4. The end of the pawl shaft 4 furthest from the pawl 5 is machined into an irregular shape (such as an ellipse, triangle, or wedge). A corresponding irregular hole is formed on the pawl linkage arm 6. Inserting this irregular shape into the hole completes the connection between the pawl linkage arm 6 and the pawl shaft 4, enabling the pawl linkage arm 6 to drive the pawl shaft 4 to rotate. The pawl return spring 7 is sleeved on the pawl shaft 4, with one end abutting against the side wall of the pawl linkage arm 6 and the other end abutting against the inner wall of the sunroof lock's outer casing or the base 26 of the sunroof lock. The ratchet 9 is riveted and fixed to the ratchet shaft 8, rotating synchronously with the ratchet shaft 8. The opening and closing principle of the lock body has been disclosed in existing technology and will not be repeated here.

[0034] In one embodiment, the electric drive unit includes a motor 11, a worm gear 12, a gear shaft 13, a primary transmission gear 14, and a gear return spring 15; the output end of the motor 11 is equipped with the worm gear 12; the gear shaft 13 is arranged along the Y direction; the primary transmission gear 14 is sleeved on the gear shaft 13 and is connected to the worm gear 12 and the ratchet linkage arm 6 respectively; the gear return spring 15 is used for the elastic return of the primary transmission gear 14.

[0035] Appendix Figure 4 and attached Figure 5 The structure of the electric drive unit and its electric drive connection with the lock body are shown. When the motor 11 drives the worm gear 12 to rotate, the primary transmission gear 14 rotates, the pawl linkage arm 6, the pawl shaft 4, and the pawl 5 rotate synchronously, the pawl 5 separates from the ratchet 9, the lock body opens, and the pawl actuating element 1 slides within the second slot 6-1. It should be noted that during the electric drive to open the lock body, linkage with the emergency opening unit should be avoided. Therefore, a second slot 6-1 is provided on the pawl linkage arm 6 to provide movement space for the pawl actuating element 1, as shown in the attached diagram. Figure 5 As shown, when the pawl linkage arm 6 rotates counterclockwise to open the lock body, the pawl actuating member 1 slides relative to the pawl linkage arm 6 in the second waist hole 6-1, that is, the process of opening the electrically driven lock body can exist independently of the process of opening the lock body in an emergency.

[0036] Reference Appendix Figure 4 and attached Figure 5The gear return spring 15 is sleeved on the gear shaft 13. A gear washer 14-1 can be optionally placed between the primary transmission gear 14 and one Z-direction end of the gear return spring 15 to reduce friction on the primary transmission gear 14. The other end of the gear return spring 15 abuts against the base plate 24 of the lock body. The extension and retraction of the gear return spring 15 is achieved by the primary transmission gear 14 sliding along the gear shaft 13. Therefore, the process of disconnecting the connection between the electric drive unit and the lock body is as follows: when the pawl actuating member 1 moves towards the X-direction, the pawl linkage arm 6, pawl shaft 4, and pawl 5 rotate synchronously, the pawl 5 separates from the ratchet 9, the lock body opens, and simultaneously, the second shift fork on the gear actuating member 2 drives the primary transmission gear 14 to move along the Y-direction, the primary transmission gear 14 separates from the worm gear 12, and the elasticity of the gear return spring 15 increases.

[0037] In the appendix Figure 4 In the middle, the pawl actuator 1 rotates counterclockwise to press down the first-stage transmission gear 14, and the gear return spring 15 is compressed by force; after the emergency lock body is opened, the pawl actuator 1 resets under the action of the first shift fork return spring 2-2 and the pressure is released. The first-stage transmission gear 14 can then reset under the elastic force of the gear return spring 15 and re-mesh with the worm gear 12. No additional auxiliary reset components are required, which can simplify the lock body structure and make the space arrangement of the lock body compact.

[0038] In one embodiment, the primary transmission gear 14 is directly connected to the pawl linkage arm 6. Since the opening of the lock body is achieved through the synchronous movement of the pawl linkage arm 6, the pawl shaft 4, and the pawl, the rotational movement of the primary transmission gear 14 is converted into the rotational movement of the pawl linkage arm 6. Therefore, an eccentric linkage structure (not shown) needs to be installed between the primary transmission gear 14 and the pawl linkage arm 16 to achieve the linkage between the two.

[0039] In another embodiment, as shown in the appendix Figure 4 Appendix Figure 5 Appendix Figure 6 As shown, the primary transmission gear 14 is indirectly connected to the pawl linkage arm 6. Specifically, the lock body also includes a secondary transmission gear 16, an electrically operated rocker arm 17, and a pull rod 18; the secondary transmission gear 16 is coaxially arranged with the ratchet shaft 8 and meshes with the primary transmission gear 14; the electrically operated rocker arm 17 is sleeved on the pawl shaft 4, and a linkage arm paddle 6-2 is provided on the side of the pawl linkage arm 6 to contact the pawl linkage arm 6; the pull rod 18 is drively connected between the secondary transmission gear 16 and the electrically operated rocker arm 17.

[0040] See appendix Figure 4 and attached Figure 5The specific transmission process between the electric drive unit and the lock body is described as follows: When the first-stage transmission gear 14 rotates, the second-stage transmission gear 16 rotates, the pull rod 18 pulls the electric opening rocker arm 17 to rotate around the pawl shaft 4, the electric opening rocker arm 17 drives the pawl connecting arm 6, pawl shaft 4, and pawl 5 to rotate synchronously through the connecting arm lever 6-2, and the lock body opens; when the pawl lever 1 moves to the X direction, the pawl connecting arm 6 rotates, and the connecting arm lever 6-2 moves away from the electric opening rocker arm 17.

[0041] First, the primary transmission gear 14 includes two coaxially connected large and small gears. The large gear meshes with the worm gear 12, and the small gear meshes with the secondary transmission gear 16. The large gear is located on the side of the gear shaft 13 close to the gear return spring 15. An eccentric hole is formed on the secondary transmission gear 16. One end of the pull rod 18 is rotatably connected to the eccentric hole through a pull rod shaft 18-1, and the other end of the pull rod 18 is rotatably connected to the eccentric hole on the electric rocker arm 17 through a third connector 18-2. By using the secondary transmission gear 16 as an intermediate transmission component, the required length of the pull rod 18 is reduced, indirectly improving the transmission stability. The required length of the pull rod 18 in the X direction is short, saving the space occupied by the entire lock body in the X direction. Furthermore, the large gear on the primary transmission gear 14 is located between the secondary transmission gear 16 and the gear return spring 15 in the Y direction. The diameter of the secondary transmission gear 16 is used as the axial limit of the large gear, which not only makes the structure of the entire lock body more compact, but also eliminates the need for an additional limiting structure for the primary transmission gear 14.

[0042] Secondly, the lever 18 indirectly actuates the pawl linkage arm 6 via the electrically operated rocker arm 17, rather than directly driving the pawl linkage arm 6 to rotate. This is because the action of the electrically driven unit to open the lock body should avoid linkage with the emergency opening unit. Therefore, by utilizing the contact between the electrically operated rocker arm 17 and the linkage arm lever 6-2 on the side of the pawl linkage arm 6, when the lock body is opened electrically, the electrically operated rocker arm 17 can actuate the pawl linkage arm 6 to rotate, while the pawl lever 1 slides in the second oblique hole 6-1, keeping the emergency opening unit stationary. When the emergency opening unit opens the lock body in an emergency, the pawl linkage arm 6 rotates counterclockwise while the electrically operated rocker arm 17 remains stationary. Furthermore, thanks to the structural limitation of the linkage arm lever 6-2, when the lock body is closed, the pawl linkage arm 6 rotates counterclockwise with the pawl 5 until the linkage arm lever 6-2 contacts the side wall of the electrically operated rocker arm 17 and stops, preventing the pawl 5 from overtraveling.

[0043] In one embodiment, please refer to the appendix. Figure 4 Appendix Figure 5 Appendix Figure 6The lock body also includes a spur gear 19 and a ratchet push arm 20; the spur gear 19 is sleeved on the ratchet shaft 8 and meshes with the secondary transmission gear 16; the ratchet push arm 20 is coaxially arranged with the ratchet shaft 7 and keyed to the spur gear 19, and a stop plate 20-1 is provided on the side of the ratchet push arm 20 that can contact the side wall of the ratchet 9; when the lock body is closed, the ratchet 9 contacts the stop plate 20-1.

[0044] The ratchet push arm 20 provides dynamic limiting for the ratchet when the lock body is opened or locked, and its coaxial connection to the ratchet shaft 8 does not occupy extra space. Specifically, the relative position of the pawl 5 and the ratchet 9 in the open state of the lock body is as follows: Figure 4 For example, the side wall of ratchet 9 is limited by the stop plate 20-1, thus restricting the maximum opening degree of the lock body. When the lock body is closed, ratchet 9 rotates clockwise, and the side wall of ratchet 9 gradually moves away from the stop plate 20-1 until ratchet 9 and pawl 5 mesh and lock together. When the lock body is locked, worm gear 12 drives the primary transmission gear 14 to rotate clockwise, thereby causing ratchet shaft 8, spur gear 19, and ratchet push arm 20 to rotate clockwise. The stop plate 20-1 moves closer to ratchet 9 again, preventing damage to the ratchet caused by violent pulling of the lock. For example, when the lock malfunctions and cannot be opened, because the ratchet push arm 20 limits the rotation of ratchet 9, if the lock is pulled forcefully, the lock will rotate with ratchet 9, and the ratchet push arm 20 will apply a reverse torque to the motor 11 through spur gear 19, secondary transmission gear 16, and primary transmission gear 14. Due to the self-locking nature of worm gear 12 and primary transmission gear 14, the reverse torque may cause damage to the primary transmission gear and force the lock body to open. The ratchet push arm 20 clearly demonstrates the significance of emergency opening of the lock body.

[0045] In one embodiment, please refer to the appendix. Figure 5 Appendix Figure 6 The lock body also includes a signal trigger rocker arm 21, a ratchet pin 22, and a pair of first micro switches 23; the signal trigger rocker arm 21 is sleeved on the ratchet shaft 8; the ratchet pin 22 is arranged parallel to the ratchet shaft 8, and its two ends are respectively connected to the ratchet 9 and the signal trigger rocker arm 21; the pair of first micro switches 23 are correspondingly arranged on the radial side of the signal trigger rocker arm 21.

[0046] The signal triggers rocker arm 21 to link with ratchet 9, directly providing feedback on the movement position of ratchet 9. (Attached) Figure 7 Appendix Figure 8 Appendix Figure 9This demonstrates the relative positions of the signal trigger rocker arm 21 and the first micro switch 23 in three states: open, partially closed, and fully closed. It can be seen that the first micro switch 23 on the left transmits the fully locked signal, the first micro switch 23 on the right transmits the partially locked signal, and when both first micro switches 23 are in contact with the signal trigger rocker arm 21, they transmit the open signal. Understandably, when the lock is open, the signal trigger rocker arm 21 is in contact with both first micro switches 23; when the lock is partially closed, the signal trigger rocker arm 21 is in contact with the left micro switch 23 and separated from the right micro switch 23; and when the lock is fully closed, it is separated from both first micro switches. The signal output of the lock's state is achieved by controlling the contact between the signal trigger rocker arm 21 and the two first micro switches 23.

[0047] Please refer to the appendix in this application. Figure 1 Appendix Figure 4 Appendix Figure 6 The sunroof lock also includes an outer shell, a base plate 24, a cover plate 25, and a base 26.

[0048] As attached Figure 1 As shown, the outer casing includes a first outer casing 29 and a second outer casing 30 combined together, used to conceal the lock body, the electric drive unit, and the emergency opening unit; the other end of the first opening pull cable 1-1 extends outside the sunroof lock and can be connected in parallel with the first opening pull cable 1-1 on another sunroof lock in the same water channel. The two first opening pull cables 1-1 are connected to a main pull cable through a splitter, enabling one-handed operation to simultaneously open the two sunroof locks, thus buying time for emergency opening of the sunroof lock.

[0049] As attached Figure 4 As shown, one end of the pawl shaft 4, one end of the ratchet shaft 8, and one end of the gear shaft 13 are respectively rotatably mounted on the base plate 24; the base plate provides mounting and positioning points for each shaft, ensuring the continuity of power transmission between components and reducing component jamming.

[0050] As attached Figure 4 As shown, the cover plate 25 is connected to the base plate 24 via the cover plate pin 25-1. The other end of the ratchet shaft 4, the other end of the ratchet shaft 8, and the other end of the gear shaft 13 are respectively rotatably mounted on the base plate 24. The cover plate 25 and the base plate 24 work together to position each shaft and ensure that each shaft is parallel to the others. At the same time, the components mounted on the ratchet shaft 8 are restricted between the cover plate 25 and the base plate 24, and are indirectly used as axial limiters for the secondary transmission gear 16.

[0051] As attached Figure 5 and attached Figure 6As shown, the base 26 is used to install the second micro switch 27 corresponding to the ratchet linkage arm 6 and / or the third micro switch 28 corresponding to the electric rocker arm 17. The base 26 is used to ensure that the second micro switch 27, which monitors the opening of the lock body, and the third micro switch 28, which monitors the driving action to open the lock body, are positioned to avoid obstructing the lock body's mounting location.

[0052] Appendix Figure 10 and attached Figure 11 This demonstrates the relative positional relationship between the pawl linkage arm 6 and the second micro switch 27 when the lock body is in the open or closed state. When the lock body is in the closed state, refer to the attached diagram. Figure 9 The second micro switch 27 separates from the linkage arm lever 6-2. When the lock body is open, refer to the attached... Figure 10 The pawl linkage arm 6 rotates counterclockwise, and the linkage arm lever 6-2 contacts the second micro switch 27. The second micro switch 27, through an electrical connection to the control system, feeds back a signal indicating that the lock body is open to the control system. After this signal is triggered, it indicates that the lock body has been released, and the control system controls the motor to stop receiving power.

[0053] Appendix Figure 12 and attached Figure 13 This demonstrates the transmission relationship between the secondary transmission gear 16 and the electrically operated rocker arm 17 in both the open and closed states of the lock body, as well as the relative positional relationship between the electrically operated rocker arm 17 and the third micro switch 28. When the lock body is in the closed state, refer to the attached diagram. Figure 11 The rocker arm lever 17-1 on the electric rocker arm 17 separates from the third micro switch 28. When the lock body is opened, the secondary transmission gear 16 rotates counterclockwise, the pull rod 18 moves to the right, the electric rocker arm 17 rotates counterclockwise, the lock body opens, and after the lock body is electrically released, all components return to their original positions. Figure 13 In the neutral position shown, the rocker arm lever 17-1 contacts the third micro switch 28. The third micro switch 28, through an electrical connection to the control system, sends a signal to the electric drive unit to open the lock body. Once this signal is triggered, it indicates that the lock body has been released, and the control system stops energizing the motor.

[0054] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lift-up sunroof lock, characterized in that, include: The lock body is capable of being opened or closed; An electric drive unit is used to electrically drive the lock body to open; An emergency opening unit is used to disconnect the electric drive unit from the lock body and simultaneously open the lock body; The lock body and the electric drive unit are located on the XZ plane, and the emergency opening unit is located on the Y-direction side of the lock body and the electric drive unit.

2. The sunroof lock according to claim 1, characterized in that, The emergency activation unit includes: A pawl actuator (1) is used to open the lock body; The first opening cable (1-1) has one end connected to the pawl actuator (1) and the other end extending away from the lock body; Gear actuator (2) is used to disconnect the connection between the electric drive unit and the lock body; The second opening pull cable (3) connects the pawl actuator (1) and the gear actuator (2) so that the gear actuator (2) and the pawl actuator (1) move synchronously.

3. The lift-up sunroof lock according to claim 2, characterized in that, The gear actuating element (2) includes: The first shift fork is disposed at one end of the gear shift member (2); The second shift fork is disposed at the other end of the gear shift member (2); The shift fork rotation part (2-1) is arranged on the first shift fork part along the Z direction; The first shift fork return spring (2-2) is used for the elastic return of the gear shifting component (2); When the gear actuating member (2) rotates to one side around the fork rotating part (2-1), the second fork part cuts off the connection between the electric drive part and the lock body, and the torque of the first fork return spring (2-2) increases.

4. The lift-up sunroof lock according to claim 2, characterized in that, The second opening pull line (3) also includes: The first connector (3-1) is located at one end of the second opening pull cable and is movably connected to the pawl actuator (1); The second connector (3-2) is located at the other end of the second opening pull line and is movably connected to the gear actuator (2).

5. The lift-up sunroof lock according to claim 4, characterized in that, The gear actuator (2) also includes: The first waist hole (2-3) is located in the middle of the gear actuator (2), and the second connector (3-2) is slidably disposed in the first waist hole (2-3).

6. The lift-up sunroof lock according to any one of claims 3-5, characterized in that: The lock body includes: The pawl shaft (4) is arranged along the Y direction, and one end of it is equipped with a pawl (5) that rotates synchronously with it. A pawl linkage arm (6) is configured on the pawl shaft (4) and rotates synchronously with the pawl shaft (4). A second waist hole (6-1) is provided on the pawl linkage arm (6), and the pawl actuating member (1) is slidably connected to the second waist hole (6-1). A pawl return spring (7) is used for the elastic return of the pawl (5); The ratchet shaft (8) is arranged along the Y direction, and one end of it is equipped with a ratchet (9) that rotates synchronously with it. The ratchet (9) can engage with the pawl (5). A ratchet return spring (10) is used for the elastic return of the ratchet (8); The electric drive unit includes: The motor (11) has a worm gear (12) at its output end. Gear shaft (13) is arranged along the Y direction; A primary transmission gear (14) is sleeved on the gear shaft (13) and is connected to the worm (12) and the ratchet linkage arm (6) respectively. A gear return spring (15) is used for the elastic return of the first-stage transmission gear (14); When the motor (11) drives the worm (12) to rotate, the first-stage transmission gear (14) rotates, the pawl linkage arm (6), the pawl shaft (4), and the pawl (5) rotate synchronously, the pawl (5) separates from the ratchet (9), the lock body opens, and the pawl actuating member (1) slides in the second waist hole (6-1); When the pawl actuator (1) moves toward the X direction, the pawl linkage arm (6), pawl shaft (4), and pawl (5) rotate synchronously, the pawl (5) separates from the ratchet (9), the lock body opens, and at the same time, the second shift fork on the gear actuator (2) drives the first-stage transmission gear (14) to move along the Y direction, the first-stage transmission gear (14) separates from the worm (12), and the elasticity of the gear return spring (15) increases.

7. The lift-up sunroof lock according to claim 6, characterized in that: A gear shim (14-1) is provided between the primary transmission gear (14) and the gear return spring (15).

8. The lift-up sunroof lock according to claim 6, characterized in that, The lock body also includes: The secondary transmission gear (16) is arranged coaxially with the ratchet shaft (8) and meshes with the primary transmission gear (14); An electric rocker arm (17) is sleeved on the pawl shaft (4), and a connecting arm paddle (6-2) is provided on the side of the pawl connecting arm (6) to contact the pawl connecting arm (6). The pull rod (18) is connected to the secondary transmission gear (16) and the electrically operated rocker arm (17) in a transmission manner; When the first-stage transmission gear (14) rotates, the second-stage transmission gear (16) rotates, the pull rod (18) pulls the electric rocker arm (17) to rotate around the pawl shaft (4), the electric rocker arm (17) drives the pawl connecting arm (6), pawl shaft (4), and pawl (5) to rotate synchronously through the connecting arm paddle (6-2), and the lock body opens; When the pawl actuator (1) moves toward the X direction, the pawl linkage arm (6) rotates and the linkage arm paddle (6-2) moves away from the electrically operated rocker arm (17).

9. The lift-up sunroof lock according to claim 8, characterized in that, The lock body also includes: A spur gear (19) is sleeved on the ratchet shaft (8) and meshes with the secondary transmission gear (16); The ratchet push arm (20) is coaxially arranged with the ratchet shaft (7) and keyed to the spur gear (19). The ratchet push arm (20) has a stop plate (20-1) extending from its side that can contact the side wall of the ratchet (9). When the lock body is closed, the ratchet (9) contacts the stop plate (20-1).

10. The lift-up sunroof lock according to claim 8, characterized in that, The lock body also includes: The signal triggers the rocker arm (21), which is sleeved on the ratchet shaft (8); The ratchet pin (22) is arranged parallel to the ratchet shaft (8), and its two ends are respectively connected to the ratchet (9) and the signal trigger rocker arm (21). A pair of first microswitches (23) are respectively disposed on the radial side of the signal trigger rocker arm (21).

11. The lift-up sunroof lock according to claim 8, characterized in that, Also includes: The base plate (24) has one end of the pawl shaft (4), one end of the ratchet shaft (8), and one end of the gear shaft (13) rotatably mounted on the base plate (24); The cover plate (25) is connected to the base plate (24) by the cover plate pin (25-1), and the other end of the pawl shaft (4), the other end of the ratchet shaft (8), and the other end of the gear shaft (13) are respectively rotatably mounted on the base plate (24); The base (26) is used to mount a second micro switch (27) corresponding to the pawl linkage arm (6) and / or a third micro switch (28) corresponding to the electrically operated rocker arm (17). The housing includes a first housing (29) and a second housing (30) assembled together for concealing the lock body, the electric drive unit and the emergency opening unit.

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