A car side door lock with self-priming ice-breaking function

Abstract

This invention provides a car side door lock with a self-priming ice-breaking function, comprising a housing, an electric opening mechanism, and an auxiliary mechanism. The electric opening mechanism is used for electrically locking or unlocking the side door lock. The auxiliary mechanism assists in self-priming and / or ice-breaking during use. The auxiliary mechanism includes a rotating rod, an ice-breaking push rod, and / or a self-priming push rod. The rotating rod can be driven to rotate by a drive motor and resets when the drive motor is not operating. The ice-breaking push rod assists in unlocking the side door lock when the drive motor drives the rotating rod to rotate, and the self-priming push rod assists in locking the side door lock when the drive motor drives the rotating rod to rotate. The car side door lock with a self-priming ice-breaking function of this invention has a compact structure, high integration, and small size, improving user installation requirements. It offers precise control, reliable transmission, low noise, reduces the number of components, lowers costs, improves production and assembly efficiency, and significantly enhances the user experience.

Description

Technical Field

[0001] This invention relates to the field of automotive door lock technology, and in particular to an automotive side door lock with a self-priming ice-breaking function. Background Technology

[0002] Cars are a common means of transportation in people's daily lives. As cars become increasingly intelligent and electronic, they become more comfortable and convenient to use, greatly enhancing the user experience. The security of electronic information technology is constantly being improved. Electronic control door opening is a new type of car door lock with a simple and compact mechanical structure, and it has a promising future.

[0003] With consumers' increasing demand for intelligent and convenient vehicles, the sealing performance of vehicles has been significantly improved to enhance internal sound insulation and sealing force. Electric release side door locks have begun to be used in the market. Self-closing, electric opening, and ice-breaking functions are changes in the control methods of various components of car doors due to the development of electronic technology. This has made the control of car doors more automated, ensuring personal safety and increasing the user experience and convenience of opening and closing doors.

[0004] Currently, in the market, car side door locks work by having the ratchet rotate to a certain angle and then the pawl, due to spring action, lock the ratchet when the door is closed. However, in cold winters, car doors and locks can freeze, often preventing the ratchet from returning to its natural position. Simultaneously, the weatherstripping hardens, increasing the sealing force. This affects both opening and closing the door; sometimes the door won't close, and sometimes the electric release mechanism won't open it.

[0005] The device that assists in opening and closing the door via a single cable is a mechanism that helps to open and close the door. It can solve the problem of the door not being able to close due to increased sealing force, and the door and door lock being unable to be electrically released due to ice buildup. Assisted door opening is usually called ice breaking, and assisted door closing is usually called self-closing.

[0006] Currently, the most common door lock structures in the automotive industry that achieve self-closing and ice-breaking functions are as follows:

[0007] 1) Self-priming, ice-breaking door lock + double pull-cord actuator

[0008] This type of door lock uses a dual-cable actuator. When the door is closed to the semi-lock position, the self-priming cable drives the door lock's mechanical structure, pulling the door from the semi-locked position to the fully locked position, thus fully closing the door. When ice breaking is needed, the actuator's ice-breaking cable drives the door lock's internal mechanical structure, thereby opening the door. This type of door lock achieves self-priming and ice-breaking functions, but it requires a dual-cable actuator, resulting in higher costs.

[0009] 2) Self-closing door lock + single-cable actuator + electric auxiliary ice-breaking mechanism

[0010] The door lock can only work with the actuator to complete the self-closing function, but it does not have an ice-breaking function. An additional auxiliary mechanism is required for ice breaking, which increases the space requirements of the door sheet metal, increases the complexity of the mechanism, and also increases the cost.

[0011] 3) Self-closing door lock + single-pull cable actuator

[0012] The door lock system is simple, only able to achieve self-closing, lacks ice-breaking function, and cannot be adapted to vehicles with electric doors.

[0013] Chinese patent CN 115807592 A discloses an electrically operated car side door lock with a self-closing function, including a lock body and a housing. The housing is equipped with an electric self-opening mechanism, and the lock body is equipped with a self-closing mechanism and an ice-breaking mechanism. When the car door is automatically or manually closed to a half-locked state, the ratchet and pawl engage in the first engagement. The self-closing mechanism, through a self-closing cable and related mechanisms, assists in achieving the self-closing function when the car door is not fully closed. The ice-breaking mechanism, through an ice-breaking cable and related mechanisms, assists in breaking the ice to open the door when it is not open. However, this mechanism includes at least two cables and related operating connection structures, which makes the structure relatively complex, increases the system cost, and places higher demands on the installation of the car door, significantly increasing the weight of the car door.

[0014] The applicant previously filed a patent application with application number CN202310444705.1 entitled "A Car Side Door Lock," which disclosed a method for assisting in opening and closing the door using a cable structure combined with a self-priming ice-breaking auxiliary device. However, during use, the applicant discovered that this door lock structure was noisy and the drive mechanism might fail, affecting the user experience.

[0015] Therefore, this application is hereby submitted. Summary of the Invention

[0016] In view of this, the present invention aims to provide a car side door lock with a self-priming ice-breaking function to solve at least one of the above-mentioned technical problems.

[0017] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0018] A car side door lock with self-priming ice-breaking function includes a housing, an electric opening mechanism, and an auxiliary mechanism. The electric opening mechanism is used for electrically locking or unlocking the side door lock. The auxiliary mechanism is used to assist in self-priming and / or ice-breaking during use. The auxiliary mechanism includes a rotating rod, an ice-breaking push rod, and / or a self-priming push rod. The rotating rod can be driven to rotate by a drive motor and resets when the drive motor is not working. The ice-breaking push rod is used to assist in unlocking the side door lock when the drive motor drives the rotating rod to rotate. The self-priming push rod is used to assist in locking the side door lock when the drive motor drives the rotating rod to rotate.

[0019] Furthermore, in the auxiliary self-priming mode, the drive motor drives the rotating rod to rotate, and the self-priming push rod can push the ratchet of the electric opening mechanism to move, and the electric opening mechanism performs the door closing operation;

[0020] And / or, in the auxiliary ice-breaking condition, the drive motor drives the rotating rod to rotate, and the ice-breaking push rod can push the ratchet of the electric opening mechanism to move, and the electric opening mechanism performs the door opening operation.

[0021] Furthermore, the electric opening mechanism includes a ratchet and a pawl, which can be in a fully locked state, a half-locked state, and an unlocked state depending on their positions. A first pushing part and a second pushing part are provided on the ratchet.

[0022] The drive motor drives the rotating rod to rotate. In the assisted self-priming mode, the drive motor drives the rotating rod to rotate, and the self-priming push rod can push the first pushing part on the ratchet, thereby driving the ratchet to move and realize the side door lock transmission to close the door. In the assisted ice-breaking mode, the self-priming interruption rod in the electric opening mechanism is displaced and pushes against the self-priming push rod. The rotation of the self-priming push rod is limited. During the rotation of the drive motor-driven rotating rod, the ice-breaking push rod can push the second pushing part on the ratchet, thereby driving the ratchet to move and realize the ice-breaking to open the door.

[0023] Furthermore, the housing includes a housing base plate, which is divided into three parts from left to right: a ratchet and pawl mounting part, an auxiliary mechanism mounting part, and a drive mounting part. A boss plate is formed on the housing base plate at the position corresponding to the ratchet and pawl mounting part. The boss plate and the housing base plate of the auxiliary mechanism mounting part are arranged in a stepped manner. A connecting groove is provided on the side of the boss plate near the auxiliary mechanism. The ratchet and pawl are located on the lower surface of the boss plate. The auxiliary mechanism is located on the upper surface of the housing base plate at the position of the auxiliary mechanism mounting part. The ice-breaking push rod and / or self-priming push rod of the auxiliary mechanism can pass through the connecting groove and abut against the ratchet.

[0024] Furthermore, a receiving and limiting plate is provided on the housing base plate of the drive mounting part. The receiving and limiting plate is used to accommodate and install the drive motor. The drive motor is driven by meshing with a rotating rod through a transmission gear. The drive motor includes a worm gear transmission part. The transmission gear includes a first connecting gear. The worm gear transmission part meshes with the first connecting gear. The worm gear transmission part of the drive motor is arranged facing the left front. An avoidance groove is provided on one side of the receiving and limiting plate. The avoidance groove is used to avoid the worm gear transmission part of the drive motor.

[0025] Furthermore, the first connecting gear includes a first gear transmission part and a second gear transmission part, the first gear transmission part and the second gear transmission part are arranged in a stepped manner, the transmission radius of the second gear transmission part is smaller than the transmission radius of the first gear transmission part, and the worm gear transmission part meshes with the first gear transmission part for transmission.

[0026] Furthermore, the transmission gear also includes a second connecting gear, which includes a third gear transmission part and a fourth gear transmission part. The third gear transmission part is meshed with the second gear transmission part, and the fourth gear transmission part is meshed with the fifth gear transmission part on the rotating rod.

[0027] Furthermore, the first gear transmission part of the first connecting gear connecting the worm gear transmission part is a large radius gear transmission part, the second gear transmission part is disposed on the side of the first gear transmission part away from the bottom plate of the housing, the third gear transmission part on the second connecting gear for meshing with the second gear transmission part is a large radius gear transmission part, and the fourth gear transmission part is disposed on the side of the third gear transmission part close to the bottom plate of the housing.

[0028] Furthermore, the shaft of the first connecting gear is located to the left rear of the worm gear transmission part, the shaft of the second connecting gear is located to the left front of the shaft of the first connecting gear, and the fifth gear transmission part on the rotating rod is located in an arc shape at the right end of the auxiliary mechanism.

[0029] Furthermore, it also includes a door lock and an actuator. The door lock housing is formed by the mating of a base plate and a lock bracket. A ratchet and a pawl are rotatably mounted on the base plate of the door lock. The car side door lock includes an auxiliary self-priming function and an auxiliary ice-breaking function.

[0030] The auxiliary self-priming function includes the following steps:

[0031] S11: When the door is in a half-locked state, the internal signal switch of the side door lock is triggered, sending a signal to the whole vehicle. The whole vehicle sends a signal to the actuator, which controls the drive motor to work and drives the rotating rod to rotate through the transmission gear. The auxiliary self-priming function of the auxiliary mechanism is activated, and the self-priming push rod in the auxiliary mechanism pushes the ratchet to rotate forward to assist in closing the door.

[0032] S12: When the auxiliary self-priming function is executed, the pushing surface of the ice-breaking push rod in the auxiliary mechanism is misaligned with the second pushing part on the ratchet, and the ice-breaking function fails.

[0033] S13: When the ratchet reaches the fully locked position, the self-priming ends;

[0034] S14: Perform self-priming reset, and the auxiliary mechanism returns to its initial state;

[0035] The ice-breaking assistance function includes the following steps:

[0036] S21: The internal signal switch of the side door lock is triggered, giving a signal to the whole vehicle. The whole vehicle gives a signal to the actuator. When the electric opening mechanism performs the door opening function but the side door is not opened, the side door lock is in a fully locked or half-locked state. The auxiliary ice-breaking function of the auxiliary mechanism is activated. The actuator controls the drive motor to work and drives the rotating rod to rotate through the transmission gear. The self-priming interruption rod in the electric opening mechanism is displaced and pushed to the self-priming push rod. The ice-breaking push rod in the auxiliary mechanism pushes the ratchet to reverse and perform assisted door opening.

[0037] S22: When performing the auxiliary ice-breaking function, the pushing surface of the self-priming push rod in the auxiliary mechanism is misaligned with the first pushing part on the ratchet, and the auxiliary self-priming function fails.

[0038] S23: The auxiliary ice-breaking function is interrupted when the car door is opened;

[0039] S24: Perform ice-breaking and reset, and the auxiliary mechanism returns to its initial state;

[0040] S25: After the controller receives the door open signal, the power switch is reset, and at the same time, the self-closing interrupt rod is reset.

[0041] Compared with existing technologies, the car side door lock with self-priming ice-breaking function described in this invention has the following advantages:

[0042] (1) The car side door lock with self-priming ice-breaking function described in this invention uses a motor structure and a gear transmission structure to drive the rotating rod to rotate, which can realize the advantages of automation and precise control of the side door lock, and reduce the noise generated during the rotation or reset of the rotating rod. This has a positive impact on the overall design and performance optimization of the vehicle, improves the functionality, reliability and intelligence level of the side door lock system, and improves the economy and handling performance of the vehicle.

[0043] (2) The car side door lock with self-priming ice-breaking function described in this invention has a compact structure, high integration, small size, improves the user's installation requirements, has precise control, reliable transmission, low noise, reduces a large number of parts, reduces costs, improves production and assembly efficiency, and greatly enhances the user's experience. Attached Figure Description

[0044] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0045] Figure 1 This is a schematic diagram of the auxiliary mechanism in the car side door lock with self-priming ice-breaking function in the initial state according to an embodiment of the present invention;

[0046] Figure 2 for Figure 1 A schematic diagram of the structure of the auxiliary mechanism and the electric switching mechanism working together;

[0047] Figure 3 for Figure 2 A rear view schematic diagram of the structure shown in the figure;

[0048] Figure 4 This is a schematic diagram of the auxiliary mechanism in the self-priming ice-breaking function of the car side door lock according to an embodiment of the present invention in the initial self-priming state;

[0049] Figure 5 for Figure 4 The diagram shows a rear view of the structure.

[0050] Figure 6 for Figure 4 A schematic diagram of the structure of the auxiliary mechanism and the electric switching mechanism working together;

[0051] Figure 7 for Figure 6 A rear view schematic diagram of the structure shown in the figure;

[0052] Figure 8 This is a schematic diagram of the auxiliary mechanism and the electric opening mechanism in the self-priming end state in an embodiment of the present invention;

[0053] Figure 9 for Figure 8 A rear view schematic diagram of the structure shown in the figure;

[0054] Figure 10 This is a schematic diagram of the auxiliary mechanism and the electrically operated mechanism in the initial state of ice breaking in an embodiment of the present invention;

[0055] Figure 11 for Figure 10 A rear view schematic diagram of the structure shown in the figure;

[0056] Figure 12 This is a schematic diagram of the auxiliary mechanism and the electrically operated mechanism in the ice-breaking end state in an embodiment of the present invention;

[0057] Figure 13 for Figure 12 A rear view schematic diagram of the structure shown in the figure;

[0058] Figure 14 This is a schematic diagram of the auxiliary mechanism in the car side door lock with self-priming ice-breaking function in the initial state according to Embodiment 2 of the present invention;

[0059] Figure 15 for Figure 14 A schematic diagram of the cooperation between the auxiliary mechanism and the electric switching mechanism in the initial state;

[0060] Figure 16 for Figure 14 A schematic diagram of the cooperation between the auxiliary mechanism and the electric start mechanism in the self-priming initial contact state;

[0061] Figure 17 for Figure 14 A schematic diagram of the cooperation between the auxiliary mechanism and the electric start mechanism in the self-priming end state;

[0062] Figure 18 for Figure 14 A schematic diagram of the cooperation between the auxiliary mechanism and the electric opening mechanism in the initial state of ice breaking;

[0063] Figure 19 for Figure 14 A schematic diagram of the cooperation between the auxiliary mechanism and the electric opening mechanism in the initial contact state of ice breaking;

[0064] Figure 20 for Figure 14 A schematic diagram of the cooperation between the auxiliary mechanism and the electric opening mechanism in the ice-breaking end state;

[0065] Explanation of reference numerals in the attached figures:

[0066] 100-House; 1001-House base plate; 1001a-Ratchet and pawl mounting part; 1001b-Auxiliary mechanism mounting part; 1001c-Drive mounting part; 1002-Boss plate; 1003-Accommodation and limiting plate; 1004-Allowing groove; 1005-Communication groove; 200-Auxiliary mechanism; 300-Electrically operated mechanism; 1-Drive motor; 101-Worm gear transmission part; 2-Transmission gear; 201-First connecting gear; 2011-First gear transmission part; 2012-Second gear transmission part; 202-Second connecting gear; 2021-Third gear transmission part; 2022-Fourth gear transmission part ; 3-Rotating rod; 301-Fifth gear transmission part; 4-Ice-breaking push rod; 401-First limiting rod; 5-Self-priming push rod; 501-Second limiting rod; 6-Ratchet; 601-First pushing part; 602-Second pushing part; 7-Pawl; 8-Self-priming interruption rod; 801-Self-priming limiting part; 8011-First guide arc; 802-Ice-breaking limiting part; 8021-Second guide arc; 9-First rotating shaft; 901-First torsion spring; 10-Second rotating shaft; 11-Third rotating shaft; 12-Fourth rotating shaft; 13-Half-lock gap; 14-Connecting plate; 1401-First pin; 1402-Second pin. Detailed Implementation

[0067] To make the technical means and objectives and effects of the present invention easier to understand, the embodiments of the present invention will be described in detail below with reference to specific illustrations.

[0068] It should be noted that all directional and positional terms used in this invention, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connections between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. Furthermore, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0069] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "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 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.

[0071] Example 1

[0072] like Figures 1-13 As shown, this invention discloses a car side door lock with a self-priming ice-breaking function, including a housing 100, an electric opening mechanism 300, and an auxiliary mechanism 200. The electric opening mechanism 300 is used for electric locking or electric opening of the side door lock. The auxiliary mechanism 200 is used to assist the side door lock in self-priming and / or ice breaking during use. The auxiliary mechanism 200 includes a rotating rod 3, an ice-breaking push rod 4, and / or a self-priming push rod 5. The ice-breaking push rod 4 and / or the self-priming push rod 5 are hinged to the rotating rod 3. The rotating rod 3 can be driven to rotate by a drive motor 1 and reset when the drive motor 1 is not working. The ice-breaking push rod 4 is used to assist the side door lock in opening when the drive motor 1 drives the rotating rod 3 to rotate. The self-priming push rod 5 is used to assist the side door lock in locking when the drive motor 1 drives the rotating rod 3 to rotate.

[0073] In the auxiliary self-priming mode, the drive motor 1 drives the rotating rod 3 to rotate, and the self-priming push rod 5 can push the ratchet 6 of the electric opening mechanism 300 to move, thus locking and closing the side door.

[0074] In the auxiliary ice-breaking mode, the drive motor 1 drives the rotating rod 3 to rotate, and the ice-breaking push rod 4 can push the ratchet 6 of the electric opening mechanism 300 to move, thus opening the side door lock.

[0075] Specifically, the electric opening mechanism 300 includes a ratchet 6 and a pawl 7. The ratchet 6 and the pawl 7 can be in a fully locked state, a half-locked state and an unlocked state according to their positions. A first pushing part 601 and a second pushing part 602 are provided on the ratchet 6.

[0076] The drive motor 1 drives the rotating rod 3 to rotate. In the assisted self-priming mode, the drive motor 1 drives the rotating rod 3 to rotate, and the self-priming push rod 5 can push the first pushing part 601 on the ratchet 6, thereby driving the ratchet 6 to move and realize self-priming to close the door. In the assisted ice-breaking mode, the self-priming interruption rod 8 in the electric opening mechanism 300 is displaced and pushed to the self-priming push rod 5. The rotation of the self-priming push rod 5 is limited. During the rotation of the drive motor 1 driving the rotating rod 3, the ice-breaking push rod 4 can push the second pushing part 602 on the ratchet 6, thereby driving the ratchet 6 to move and realize ice-breaking to open the door.

[0077] The auxiliary mechanism 200 may also include only the auxiliary self-priming mode or the auxiliary electric start mode. When the auxiliary mechanism 200 includes only the auxiliary self-priming mode, the self-priming push rod 5 is hinged to the rotating rod 3. When the auxiliary mechanism 200 includes only the auxiliary ice-breaking mode, the ice-breaking push rod 4 is hinged to the rotating rod 3.

[0078] Preferably, the drive motor 1 is driven by the transmission gear 2 meshing with the rotating rod 3.

[0079] In the initial state, the ice-breaking push rod 4 and the self-closing push rod 5 act as a whole under the action of the reset mechanism (e.g., torsion spring) and the limiting structure. When the electric opening mechanism 300 activates the door opening function and the door is in a half-locked state, a relevant electrical signal is sent to the control module. The control module sends a signal to the actuator, which controls the drive motor 1 to work. The drive motor 1 drives the rotating rod 3 to rotate through the transmission gear 2 meshing with it. At this time, the self-closing push rod 5 is unlocked and can rotate relative to the rotating rod 3, abutting against the first pushing part 601 on the ratchet 6. During the rotation of the rotating rod 3, the self-closing push rod 5 can exert a force to push the first pushing part 601. This drives the ratchet 6 to rotate forward, thereby achieving assisted self-closing. When the electric opening mechanism 300 starts opening the door, or when the door is in a half-open state, the door is frozen due to the low temperature and does not open. The side door lock sends a signal to the whole vehicle, and the whole vehicle sends a signal to the actuator. The actuator controls the drive motor 1 to work. The drive motor 1 drives the rotating rod 3 to rotate through the transmission gear 2 meshing with it. At this time, the self-closing interruption rod 8 in the electric opening mechanism 300 is displaced and pushed to the self-closing push rod 5. The movement of the self-closing push rod 5 is relatively restricted. During the rotation of the rotating rod 3, the ice-breaking push rod 4 pushes the second pushing part 602 on the ratchet 6 to drive the ratchet 6 to reverse, so that it turns to break the ice and perform assisted door opening.

[0080] Compared to the applicant's previously disclosed solution of using a single-pull lock with auxiliary self-priming and ice-breaking functions for opening and closing doors, this application employs a drive motor 1 that, through a transmission gear 2, engages with a rotating rod 3, causing the rod 3 to rotate. This motor-driven structure enables automated operation, and electrical control allows for remote unlocking and locking of the auxiliary mechanism 200 in the side door lock, facilitating ice-breaking and / or self-priming functions. This is more convenient for vehicle use and management, especially in special circumstances such as remote unlocking or emergency locking, which can be achieved via remote control or the vehicle's onboard system, improving vehicle safety and convenience. Simultaneously, the gear transmission structure allows for more precise control and positioning. By rationally designing the gear transmission ratio and structure, the rotation speed and force of the rotating rod can be controlled, resulting in smoother and more precise door lock opening and closing. This contributes to improving the reliability and durability of the door lock system and reducing damage and malfunctions caused by improper operation. Furthermore, the motor and gear transmission structures can be integrated with the vehicle's electronic systems, flexibly responding to different usage scenarios and needs, improving the system's intelligence and reliability. The motor and gear transmission structures can also be more compactly installed in the automotive side door lock system, saving space.

[0081] The car side door lock with self-priming ice-breaking function described in this application uses a motor structure and gear transmission structure to drive the rotating rod to rotate, which can achieve the advantages of automation and precise control of the side door lock, and reduce the noise generated during the rotation or reset of the rotating rod. This has a positive impact on the overall design and performance optimization of the vehicle, improves the functionality, reliability and intelligence level of the side door lock system, and improves the vehicle's economy and handling performance.

[0082] As a preferred example of this application, the housing 100 includes a housing base plate 1001, which is divided into three parts from left to right: a ratchet and pawl mounting part 1001a, an auxiliary mechanism mounting part 1001b, and a drive mounting part 1001c. A boss plate 1002 is formed on the housing base plate 1001 at a position corresponding to the ratchet and pawl mounting part 1001a. The boss plate 1002 and the housing base plate 1001 of the auxiliary mechanism mounting part 1001b are arranged in a stepped manner. A connecting groove 1005 is provided on the side of the boss plate 1002 near the auxiliary mechanism 200. The ratchet 6 and pawl 7 are disposed on the lower surface of the boss plate 1002. The auxiliary mechanism 200 is disposed on the upper surface of the housing base plate 1001 at the position of the auxiliary mechanism mounting part 1001b. The ice-breaking push rod 4 and / or the self-priming push rod 5 of the auxiliary mechanism 200 can pass through the connecting groove 1005 and abut against the ratchet 6.

[0083] This design makes reasonable use of the internal space of the housing 100, resulting in a more compact structure and a relatively smaller overall size of the side door lock. In particular, the lock is thinner in the vertical direction, which better matches the design of the vehicle's side door. At the same time, it ensures that the side door lock can withstand greater pressure during use, reducing the risk of possible deformation and damage, and enabling the side door lock to work stably in various environments.

[0084] As a preferred example of this application, the transmission gear 2 includes a first connecting gear 201, and the drive motor 1 includes a worm gear transmission part 101, which meshes with the first connecting gear 201 for transmission.

[0085] This configuration sets the transmission between the drive motor 1 and the transmission gear 2 as a worm gear transmission mechanism, which achieves high transmission efficiency on the one hand, and the worm gear transmission mechanism has a self-locking function, which can effectively prevent reverse rotation and improve transmission efficiency and safety.

[0086] As a preferred example of this application, a receiving and limiting plate 1003 is provided on the housing base plate 1001 of the drive mounting part 1001c. The receiving and limiting plate 1003 is used to receive and mount the drive motor 1. The worm gear transmission part 101 of the drive motor 1 is arranged facing the left front. A clearance groove 1004 is provided on one side of the receiving and limiting plate 1003. The clearance groove 1004 is used to avoid the worm gear transmission part 101 of the drive motor 1. Preferably, the receiving and limiting plate 1003 is located on the right side of the housing base plate 1001 near the upper end, and the clearance groove 1004 is located at the front end of the receiving and limiting plate 1003.

[0087] This design further optimizes the mounting structure of the drive motor 1 inside the housing 100 for the operation of the drive auxiliary mechanism 200, ensuring stable installation and reliable transmission of the drive motor 1, making the installation of the drive motor 1 simpler and more convenient, and making better use of the installation space.

[0088] As a preferred example of this application, the first connecting gear 201 includes a first gear transmission part 2011 and a second gear transmission part 2012. The first gear transmission part 2011 and the second gear transmission part 2012 are arranged in a stepped manner. The transmission radius of the second gear transmission part 2012 is smaller than the transmission radius of the first gear transmission part 2011. The worm gear transmission part 101 meshes with the first gear transmission part 2011 for transmission.

[0089] This configuration sets the first connecting gear 201 as a double gear, making reasonable use of the space inside the housing 100 while achieving a larger transmission ratio. This allows the power provided by the drive motor to be transmitted to the transmission gear more efficiently, improving the efficiency of the transmission system. In addition, using gears with different transmission radii makes the transmission process smoother and reduces impact and vibration during transmission.

[0090] As a preferred example of this application, the transmission gear 2 further includes a second connecting gear 202, which includes a third gear transmission part 2021 and a fourth gear transmission part 2022. The third gear transmission part 2021 is meshed with the second gear transmission part 2012, and the fourth gear transmission part 2022 is meshed with the fifth gear transmission part 301 on the rotating rod 3. Preferably, the third gear transmission part 2021 and the fourth gear transmission part 2022 are arranged in a stepped shape, and the radius of the fourth gear transmission part 2022 is larger than the radius of the third gear transmission part 2021.

[0091] Preferably, the first gear transmission part 2011 of the first connecting gear 201 connected to the worm gear transmission part 101 is a large-radius gear transmission part, the second gear transmission part 2012 is disposed on the side of the first gear transmission part 2011 away from the housing bottom plate 1001, the third gear transmission part 2021 on the second connecting gear 202 for meshing with the second gear transmission part 2012 is a large-radius gear transmission part, and the fourth gear transmission part 2022 is disposed on the side of the third gear transmission part 2021 close to the housing bottom plate 1001.

[0092] This design also sets the second connecting gear 202 as a double gear, and connects the first connecting gear 201 to the third gear transmission part 2021 of the second connecting gear 202, and the fourth gear transmission part 2022 of the second connecting gear 202 meshes with the fifth gear transmission part 301 on the rotating rod 3, thus realizing multi-stage transmission. This design can, on the one hand, reasonably configure gear parameters according to actual needs to achieve a more reasonable transmission ratio, improve the performance and control accuracy of the system, and on the other hand, achieve balanced output of force, improve the smoothness of the rotating rod's movement and the durability of the system. The overall design is compact, occupies less space, effectively utilizes limited space resources, and achieves the optimal design of the side door lock structure.

[0093] Specifically, as an example of this application, the transmission gear 2 includes a first connecting gear 201 and a second connecting gear 202. The first gear transmission part 2011 of the first connecting gear 201 can be driven by the worm gear transmission part 101 of the drive motor 1. The second gear transmission part 2012 of the first connecting gear 201 further drives the third gear transmission part 2021 of the second connecting gear 202 to rotate. The fourth gear transmission part 2022 of the second connecting gear 202 meshes with the fifth gear transmission part 301 on the rotating rod 3. This arrangement, through the design of worm gear transmission, multi-stage transmission, and balanced force output, effectively realizes the coordinated work of the motor and gear transmission structure, enabling the rotating rod to rotate accurately and smoothly, achieving reliable silent transmission, thereby achieving the purpose of controlling the opening and closing state of the side door lock. The structure is compact, improving the overall system performance and efficiency.

[0094] As an example of this application, the shaft of the first connecting gear 201 is located to the left rear of the worm gear transmission part 101, and the shaft of the second connecting gear 202 is located to the left front of the shaft of the first connecting gear 201. The fifth gear transmission part 301 on the rotating rod 3 is arc-shaped and located at the right end of the auxiliary mechanism 200. Preferably, the center line of the shaft of the worm gear transmission part 101 is L1, the line connecting the centers of the shafts of the first connecting gear 201 and the second connecting gear 202 is L2, and the included angle between the projections of L1 and L2 onto the bottom plate 1001 of the housing is α, where α > 45°. Preferably, the value of α is in the range of 45° to 90°. As an example of this application, the value of α is in the range of 46° to 72°. This configuration allows the worm gear drive 101 of the drive motor 1 to press against the transmission gear 2 when the transmission gear 2 is driven by a helical gear, preventing the transmission gear 2 from disengaging from the worm gear drive 101, and further improving the stability and smoothness of the drive motor 1 driving the rotating rod 3 to rotate through the transmission gear 2.

[0095] This design further optimizes the spatial layout of the car side door locks by optimizing the position of the gear shaft, which can minimize the size and space occupied by the transmission device, making the entire transmission system more compact and efficient in space utilization, ensuring stable and smooth meshing between gears, and by selecting a suitable included angle α, the operation of the transmission device can be made more stable and efficient.

[0096] As a preferred example of this application, the rotating rod 3 is sleeved on the fourth rotating shaft 12, and a second torsion spring (not shown in the figure) is provided on the fourth rotating shaft 12. The second torsion spring is used to reset the rotating rod 3 when the drive motor 1 is not working. The torsion spring enables the rotating rod 3 to quickly reset after the drive motor 1 loses power. The structure is simple, the operation is reliable, and the cost is low.

[0097] As a preferred example of the present invention, the self-priming push rod 5 is hinged to the rotating rod 3 via a first rotating shaft 9. A first torsion spring 901 is provided on the first rotating shaft 9. The first torsion spring 901 is used to apply a force to the self-priming push rod 5 to push the first pushing part 601 to move when the rotating rod 3 is rotated by the drive motor 1, and can enable the self-priming push rod 5 to reset after the rotating rod 3 resets.

[0098] This configuration further improves the reliability of the self-priming push rod 5 driving the ratchet 6 to rotate forward and self-prime under the action of the rotating rod 3 when the auxiliary mechanism 200 is in the auxiliary self-priming condition.

[0099] As a preferred example of this application, the ice-breaking push rod 4 is hinged to the rotating rod 3 via a second rotating shaft 10, and a third torsion spring (not shown in the figure) is provided on the second rotating shaft 10. The third torsion spring is used to reset the ice-breaking push rod 4 when it rotates relative to the rotating rod 3.

[0100] This design ensures the reliability of the ice-breaking push rod 4 during its auxiliary ice-breaking operation under the action of the rotating rod 3, and also allows the auxiliary mechanism 200 to quickly reset after the auxiliary ice-breaking operation is completed. It features a simple structure, convenient assembly, and reliable use. In the example of this application, the structure and function of the second and third torsion springs are similar to those of the first torsion spring 901.

[0101] As a preferred example of the present invention, a first limiting rod 401 is provided on the ice-breaking push rod 4, and the first limiting rod 401 is used to limit the rotational position of the self-priming push rod 5 relative to the ice-breaking push rod 4.

[0102] Under normal operating conditions, the self-priming push rod 5 is fixed relative to the ice-breaking push rod 4 under the action of the first limiting rod 401 and the first torsion spring 901. The first limiting rod 401 is used to restrict the self-priming push rod 5 from rotating away from the driven end of the first pushing part 601 towards the ratchet 6. In the assisted ice-breaking condition, the electric switching mechanism 300 works to push the self-priming interruption rod 8 to move towards the side closer to the auxiliary mechanism 200, so that the self-priming interruption rod 8 abuts against the self-priming push rod 5, preventing the self-priming push rod 5 from rotating towards the ratchet 6 from the pushing end of the first pushing part 601. By controlling the drive motor 1 to work, the drive motor 1 drives the rotating rod 3 to rotate through the transmission gear 2 meshing with it. At this time, When the rotating rod 3 rotates, the self-priming push rod 5 is limited by the self-priming interruption rod 8. The self-priming push rod 5 can only rotate with a very small displacement before being stopped and limited by the self-priming interruption rod 8. The ice-breaking push rod 4 also rotates under the action of the third torsion spring. The first limiting rod 401 is unlocked, and the ice-breaking push rod 4 moves together under the action of the rotating rod 3 and abuts against the second pushing part 602 on the ratchet 6. At this time, although the position of the first limiting rod 401 on the ice-breaking push rod 4 changes, the self-priming push rod 5 remains relatively stationary because it is limited by the self-priming interruption rod 8. This prevents the self-priming push rod 5 from contacting the first pushing part 601 when the auxiliary mechanism 200 is performing the auxiliary ice-breaking function.

[0103] As a preferred example of the present invention, in the case of assisted self-priming, when the self-priming push rod 5 rotates towards the ratchet 6 at the pushing end of the first pushing part 601, the ice-breaking push rod 4 rotates in the opposite direction to the rotation direction of the self-priming push rod 5 along the second rotating shaft 10 under the action of the third torsion spring.

[0104] This setting causes the auxiliary mechanism 200 to disable the auxiliary ice-breaking function when performing the auxiliary self-priming function, and it can only perform self-priming to close the door. This setting further improves the reliability of the auxiliary mechanism 200 when performing the auxiliary self-priming function or the auxiliary ice-breaking function.

[0105] As a preferred example of the present invention, a second limiting rod 501 is provided on the self-priming push rod 5, and in the auxiliary ice-breaking condition, the self-priming interruption rod 8 abuts against the second limiting rod 501.

[0106] This configuration allows the rotating rod 3 to generate a force on the self-priming push rod 5 through the first torsion spring 901 when it rotates in the assisted self-priming mode. This causes the self-priming push rod 5 to push the first push part 601 to drive the ratchet 6 to rotate forward and achieve full locking. In the assisted ice-breaking mode, the second limit rod 501 can be reliably abutted by the self-priming interruption rod 8 to prevent the self-priming push rod 5 from performing the assisted self-priming function.

[0107] This configuration further enhances the reliability of the auxiliary mechanism 200 in performing the auxiliary ice-breaking function and the auxiliary self-priming function.

[0108] As a preferred example of the present invention, the first pushing part 601 and the second pushing part 602 are two protrusions provided on the ratchet 6. As an example of the present invention, the first pushing part 601 and the second pushing part 602 are two protruding structures provided on the ratchet 6 on the side away from the pawl 7. The pushing surface of the first pushing part 601 near the self-priming push rod 5 is arc-shaped, and the pushing surface of the second pushing part 602 near the ice-breaking push rod 4 is also arc-shaped.

[0109] This configuration further enhances the reliability of the auxiliary mechanism 200's operation.

[0110] The car side door lock with self-priming ice-breaking function of the present invention includes an auxiliary mechanism 200 and an electric opening mechanism 300. The electric opening mechanism 300 includes a ratchet 6 and a pawl 7. The ratchet 6 is hinged to the housing 100 through a third pivot 11, and the pawl 7 is hinged to the housing 100 through a fifth pivot. The first locking part on the ratchet 6 and the second locking part on the pawl 7 cooperate with each other to realize the switching of full lock, half lock or unlock function. When the auxiliary ice-breaking function or the auxiliary self-priming function is needed, the ratchet 6 and the pawl 7 are in a half lock state, and a half lock gap 13 is formed between the first locking part of the ratchet 6 and the second locking part of the pawl 7. At this time, the ratchet 6 cannot respond naturally, so the car door lock cannot be fully opened or fully locked.

[0111] Through the auxiliary mechanism 200, when the door is not locked when closed (i.e., the side door is in a half-locked state when closed), the internal signal switch of the side door lock is triggered, sending a signal to the whole vehicle. The whole vehicle sends a signal to the actuator, which controls the drive motor 1 to work and drives the rotating rod 3 to rotate through the transmission gear 2. The rotating rod 3 rotates clockwise, and the self-priming push rod 5 is released from the limiting mechanism (not shown in the figure). The self-priming push rod 5 rotates counterclockwise under the action of the first torsion spring 901, so that the end of the self-priming push rod 5 near the first pushing part 601 abuts against the first pushing part 601. At this time, due to the rotation of the self-priming push rod 5, the first limiting rod 401 on the ice-breaking push rod 4 is unlocked to a certain position. The ice-breaking push rod 4 rotates counterclockwise under the action of the third torsion spring. At this time, when the drive motor 1 drives the rotating rod 3 to rotate through the worm gear transmission structure, the auxiliary self-priming function starts to work, and the auxiliary ice-breaking function fails. When the ratchet 6 reaches the fully locked position, the self-priming ends; then the self-priming reset is performed. Under the action of the spring force, all parts except the ratchet 6 return to the initial position. When the door opening is not executed, the side door lock sends a signal to the entire vehicle, which in turn sends a signal to the actuator. The side door lock is in a fully locked or half-locked state, and the auxiliary ice-breaking function of the auxiliary mechanism 200 is activated. At this time, the self-priming interruption rod 8 in the electric opening mechanism 300 is displaced and abuts against the second limit rod 501 on the self-priming push rod 5. The actuator controls the drive motor 1 to work and drives the rotating rod 3 to rotate through the transmission gear 2. The rotating rod 3 rotates clockwise. Under the restriction of the self-priming interruption rod 8, the self-priming push rod 5 rotates counterclockwise to a small position under the action of the first torsion spring 901. The first limit rod 401 on the ice-breaking push rod 4 rotates to unlock, and the ice-breaking push rod 4 also rotates counterclockwise to a small position. This motion structure is as follows. Figure 6 As shown, the ice-breaking push rod 4 disengages from the limiting mechanism and unlocks. The ice-breaking push rod 4 moves as a unit with the rotating rod 3 until it abuts against the second pushing part 602 on the ratchet 6. During the movement of the ice-breaking push rod 4 with the rotating rod 3, the first limiting rod 401 on the ice-breaking push rod 4 also moves a certain distance. During this process, the self-priming push rod 5 is stopped by the self-priming interruption rod 8, and the self-priming push rod 5 remains stationary, thus the auxiliary self-priming function is disabled. As the drive motor 1 further operates, it drives the rotating rod 3 to rotate, and the ice-breaking push rod 4 pushes the ratchet 6 to move outward, realizing the auxiliary ice-breaking and door opening. When the door is opened, ice breaking is interrupted, and the rotating rod 3 resets under the action of spring force. Since the controller receives the door opening signal after the door is opened, the power switch is reset. At the same time, the self-priming interruption rod 8 resets, and the ice-breaking push rod 4 and the self-priming push rod 5 reset under the action of spring force. Except for the ratchet 6, everything else returns to its initial position.

[0112] Example 2

[0113] like Figures 1-20As shown, the present invention discloses a first type of car side door lock with self-priming ice-breaking function. The self-priming interruption rod 8 includes a self-priming limiting part 801 and an ice-breaking limiting part 802. A first guide arc 8011 is provided on the self-priming limiting part 801. The first guide arc 8011 is used to push against the self-priming push rod 5 during the auxiliary ice-breaking condition. A second guide arc 8021 is provided on the ice-breaking limiting part 802. The second guide arc 80211 is used to limit the sliding stroke of the first limiting rod 401 during the auxiliary ice-breaking condition. Other structures are the same as in Embodiment 1. This design discloses another structure for the self-priming interruption lever 8. Through the first guide arc 8011 and the second guide arc 8021 provided on the self-priming interruption lever 8, during assisted ice-breaking conditions, the self-priming interruption lever 8 in the electrically operated mechanism 300 is displaced. At this time, the first guide arc 8011 on the self-priming limiting part 801 is used to push against the self-priming push rod 5, limiting the rotation of the self-priming push rod 5. Simultaneously, the rotating rod 3 rotates, and the self-priming push rod 5 is limited by the self-priming interruption lever 8, allowing the self-priming push rod 5 to rotate only with a very small displacement. Subsequently... The ice-breaking push rod 4 is then stopped by the first guide arc 8011 of the self-priming limiting part 801. Under the action of the third torsion spring, the ice-breaking push rod 4 also rotates, unlocking the first limiting rod 401 and rotating to the second guide arc 8021 of the ice-breaking limiting part 802. Under the action of the rotating rod 3, the ice-breaking push rod 4 moves together and abuts against the second pushing part 602 on the ratchet 6. The self-priming push rod 5 moves along the first guide arc 8011, thereby preventing the self-priming push rod 5 from contacting the first pushing part 601 when the auxiliary mechanism 200 is performing the auxiliary ice-breaking function. This setting further improves the reliability and stability of the ice-breaking push rod 4 and the self-priming push rod 5 performing the ice-breaking function under the action of the self-priming interruption rod 8 in the auxiliary ice-breaking condition. At the same time, the arc-shaped guide limiting structure also ensures the smoothness of the movement of the ice-breaking push rod 4 and the self-priming push rod 5, preventing the auxiliary ice-breaking function from failing.

[0114] As a preferred example of this application, a connecting plate 14 is provided at the fourth rotating shaft 12 on the rotating rod 3. The connecting plate 14 is hinged to the second connecting gear 202 and the first connecting gear 201 via a first pin 1401 and a second pin 1402, respectively. This arrangement further improves the ease of assembly and connection stability of the auxiliary mechanism 200, ensures the reliability of the auxiliary mechanism 200 in performing auxiliary self-priming and / or auxiliary ice-breaking operations, reduces the number of parts, optimizes internal installation space, reduces costs, and reduces the space occupied by the car side door lock.

[0115] The car side door lock with self-priming ice-breaking function described in this invention also includes a door lock and an actuator. The door lock housing 100 is formed by the mating of a base plate and a lock bracket. A ratchet 6 and a pawl 7 are rotatably arranged on the base plate of the door lock. The car side door lock includes an auxiliary self-priming function and an auxiliary ice-breaking function.

[0116] The auxiliary self-priming function includes the following steps:

[0117] S11: When the door is in a half-locked state, the internal signal switch of the side door lock is triggered, giving a signal to the whole vehicle. The whole vehicle gives a signal to the actuator. The actuator controls the drive motor 1 to work and drives the rotating rod 3 to rotate through the transmission gear 2. The auxiliary self-priming function of the auxiliary mechanism 200 is activated. The self-priming push rod 5 in the auxiliary mechanism 200 pushes the ratchet 6 to rotate forward to assist in closing the door.

[0118] S12: When the auxiliary self-priming function is executed, the pushing surface of the ice-breaking push rod 4 in the auxiliary mechanism 200 is misaligned with the second pushing part 602 on the ratchet 6, and the ice-breaking function fails.

[0119] S13: When ratchet 6 reaches the fully locked position, the self-priming ends;

[0120] S14: Perform self-priming reset, and auxiliary mechanism 200 returns to its initial state;

[0121] The ice-breaking assistance function includes the following steps:

[0122] S21: When the internal signal switch of the side door lock is triggered, a signal is sent to the whole vehicle, and the whole vehicle sends a signal to the actuator. When the electric opening mechanism 300 performs the door opening function but the side door is not opened, the side door lock is in a fully locked or half-locked state. The auxiliary ice-breaking function of the auxiliary mechanism 200 is activated. The actuator controls the drive motor 1 to work and drives the rotating rod 3 to rotate through the transmission gear 2. The self-priming interruption rod 8 in the electric opening mechanism 300 is displaced and pushed to the self-priming push rod 5. The ice-breaking push rod 4 in the auxiliary mechanism 200 pushes the ratchet 6 to reverse and perform auxiliary door opening.

[0123] S22: When performing the auxiliary ice-breaking function, the pushing surface of the self-priming push rod 5 in the auxiliary mechanism 200 is misaligned with the first pushing part 601 on the ratchet 6, and the auxiliary self-priming function fails.

[0124] S23: The auxiliary ice-breaking function is interrupted when the car door is opened;

[0125] S24: Perform ice-breaking reset, and auxiliary mechanism 200 returns to its initial state;

[0126] S25: After the controller receives the door open signal, the power switch is reset, and at the same time, the self-closing interrupt rod 8 is reset.

[0127] The car side door lock with self-priming ice-breaking function of this invention connects to the electric opening mechanism 300 of the side door lock via an actuator and an auxiliary mechanism 200 with a drive motor 1 and a transmission gear 2. This enables assisted opening and / or closing of the side door lock. The self-priming and ice-breaking functions are switched internally, thus assisted closing and assisted opening in case of electric release failure. The mechanism is relatively stable, and the side door lock has low cost. The car side door lock with self-priming ice-breaking function of this invention solves the problem of assisted opening and closing by driving a rotating rod 3 with a drive motor 1 and a transmission gear 2, and allows for the selection of individual functions as needed.

[0128] The car side door lock with self-priming ice-breaking function described in this invention is a domestically leading technology with the following technical advantages:

[0129] 1. Compared to traditional solutions, it has a simpler structure, higher integration, and lower cost;

[0130] 2. Precise control, reliable transmission, and low noise;

[0131] 3. Compared to split designs, it has a compact structure and small size, improving the space utilization of the product and meeting customer usage requirements;

[0132] 4. The manufacturing process is simple, processing is convenient, and production efficiency is high;

[0133] 5. Compared to the traditional split design, it reduces the number of parts, lowers costs, and improves assembly and production efficiency.

[0134] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 car side door lock with self-priming ice-breaking function, comprising a housing (100), an electric opening mechanism (300), and an auxiliary mechanism (200), wherein the electric opening mechanism (300) is used for electrically locking or electrically opening the side door lock, and the auxiliary mechanism (200) is used to assist in self-priming and / or ice-breaking during use of the side door lock, characterized in that, The auxiliary mechanism (200) includes a rotating rod (3), an ice-breaking push rod (4), and / or a self-closing push rod (5). The rotating rod (3) can be driven to rotate by a drive motor (1) and reset when the drive motor (1) is not working. The ice-breaking push rod (4) is used to open the side door lock when the drive motor (1) drives the rotating rod (3) to rotate. The self-closing push rod (5) is used to lock the side door lock when the drive motor (1) drives the rotating rod (3) to rotate. The electric opening mechanism (300) includes a ratchet (6) and a pawl (7). The ratchet (6) and the pawl (7) can form a fully locked state, a half-locked state and an unlocked state according to the position change. A first pushing part (601) and a second pushing part (602) are provided on the ratchet (6). The rotating rod (3) is sleeved on the fourth rotating shaft (12), and a second torsion spring is provided on the fourth rotating shaft (12). The second torsion spring is used to reset the rotating rod (3) when the drive motor (1) is not working. The self-priming push rod (5) is hinged to the rotating rod (3) via a first rotating shaft (9). A first torsion spring (901) is provided on the first rotating shaft (9). The first torsion spring (901) is used to apply a force to the self-priming push rod (5) to push the first pushing part (601) when the rotating rod (3) is rotated by the drive motor (1), and can also reset the self-priming push rod (5) after the rotating rod (3) is reset. The ice-breaking push rod (4) is hinged to the rotating rod (3) via a second rotating shaft (10). A third torsion spring is provided on the second rotating shaft (10). The third torsion spring is used to reset the ice-breaking push rod (4) when it rotates relative to the rotating rod (3). In the assisted self-priming mode, the drive motor (1) drives the rotating rod (3) to rotate, and the self-priming push rod (5) can push the first pushing part (601) on the ratchet (6), thereby driving the ratchet (6) to move. The ice-breaking push rod (4) rotates in the opposite direction to the rotation direction of the self-priming push rod (5) along the second rotating shaft (10) under the action of the third torsion spring, thereby realizing self-priming door closing. In the assisted ice-breaking mode, the self-priming interruption rod (8) in the electric opening mechanism (300) is displaced and pushed to the self-priming push rod (5). The rotation of the self-priming push rod (5) is limited. During the rotation of the drive motor (1) driving the rotating rod (3), the ice-breaking push rod (4) can push the second pushing part (602) on the ratchet (6), thereby driving the ratchet (6) to move and realize ice-breaking and door opening. The self-priming interrupting rod (8) includes a self-priming limiting part (801) and an ice-breaking limiting part (802). A first guide arc (8011) is provided on the self-priming limiting part (801), which is used to push against the self-priming push rod (5) during the auxiliary ice-breaking condition. A second guide arc (8021) is provided on the ice-breaking limiting part (802), which is used to limit the sliding stroke of the first limiting rod (401) on the ice-breaking push rod (4) during the auxiliary ice-breaking condition. The housing (100) includes a housing base plate (1001), which is divided into three parts from left to right: a ratchet and pawl mounting part (1001a), an auxiliary mechanism mounting part (1001b), and a drive mounting part (1001c). A boss plate (1002) is formed on the housing base plate (1001) at a position corresponding to the ratchet and pawl mounting part (1001a). The boss plate (1002) and the housing base plate (1001) of the auxiliary mechanism mounting part (1001b) are arranged in a stepped manner. A connecting groove (1005) is provided on the side of the boss plate (1002) near the auxiliary mechanism (200). The ratchet (6) and pawl (7) are provided on the lower surface of the boss plate (1002). The auxiliary mechanism (200) is provided on the upper surface of the housing bottom plate (1001) at the location of the auxiliary mechanism mounting part (1001b). The ice-breaking push rod (4) and / or self-priming push rod (5) of the auxiliary mechanism (200) can pass through the connecting groove (1005) and abut against the ratchet (6). A receiving and limiting plate (1003) is provided on the housing base plate (1001) of the drive mounting part (1001c). The receiving and limiting plate (1003) is used to receive and mount the drive motor (1). The drive motor (1) is driven by meshing with the rotating rod (3) through a transmission gear (2). The drive motor (1) includes a worm gear transmission part (101). The transmission gear (2) includes a first connecting gear (201) and a second connecting gear (202). The worm gear transmission part (101) meshes with the first connecting gear (201). The drive motor (1) The worm gear transmission part (101) is arranged facing the left front. The shaft of the first connecting gear (201) is located at the left rear of the worm gear transmission part (101). The shaft of the second connecting gear (202) is located at the left front of the shaft of the first connecting gear (201). The fifth gear transmission part (301) on the rotating rod (3) is arranged in an arc shape at the right end of the auxiliary mechanism (200). A clearance groove (1004) is provided on one side of the receiving limiting plate (1003). The clearance groove (1004) is used to avoid the worm gear transmission part (101) of the drive motor (1).

2. The car side door lock with self-priming ice-breaking function according to claim 1, characterized in that, The first connecting gear (201) includes a first gear transmission part (2011) and a second gear transmission part (2012). The first gear transmission part (2011) and the second gear transmission part (2012) are arranged in a stepped shape. The transmission radius of the second gear transmission part (2012) is smaller than the transmission radius of the first gear transmission part (2011). The worm gear transmission part (101) meshes with the first gear transmission part (2011) for transmission.

3. The car side door lock with self-priming ice-breaking function according to claim 2, characterized in that, The second connecting gear (202) includes a third gear transmission part (2021) and a fourth gear transmission part (2022). The third gear transmission part (2021) is meshed with the second gear transmission part (2012), and the fourth gear transmission part (2022) is meshed with the fifth gear transmission part (301) on the rotating rod (3).

4. The car side door lock with self-priming ice-breaking function according to claim 3, characterized in that, The first connecting gear (201) is connected to the first gear transmission part (2011) of the worm gear transmission part (101), which is a large radius gear transmission part. The second gear transmission part (2012) is disposed on the side of the first gear transmission part (2011) away from the bottom plate of the housing (1001). The third gear transmission part (2021) on the second connecting gear (202) for meshing with the second gear transmission part (2012) is a large radius gear transmission part. The fourth gear transmission part (2022) is disposed on the side of the third gear transmission part (2021) close to the bottom plate of the housing (1001).

5. The car side door lock with self-priming ice-breaking function according to claim 3 or 4, characterized in that, The shaft of the first connecting gear (201) is located to the left rear of the worm gear transmission part (101), the shaft of the second connecting gear (202) is located to the left front of the shaft of the first connecting gear (201), and the fifth gear transmission part (301) on the rotating rod (3) is arranged in an arc shape at the right end of the auxiliary mechanism (200).

6. The car side door lock with self-priming ice-breaking function according to claim 1, 2, or 4, characterized in that, It also includes a door lock and an actuator. The door lock housing (100) is formed by the mating of a base plate and a lock bracket. A ratchet (6) and a pawl (7) are rotatably mounted on the base plate of the door lock. The car side door lock includes an auxiliary self-priming function and an auxiliary ice-breaking function. The auxiliary self-priming function includes the following steps: S11: When the door is in a half-locked state, the internal signal switch of the side door lock is triggered, giving a signal to the whole vehicle. The whole vehicle gives a signal to the actuator. The actuator controls the drive motor (1) to work and drives the rotating rod (3) to rotate through the transmission gear (2). The auxiliary self-priming function of the auxiliary mechanism (200) is activated. The self-priming push rod (5) in the auxiliary mechanism (200) pushes the ratchet (6) to rotate forward to assist in closing the door. S12: When the auxiliary self-priming function is executed, the pushing surface of the ice-breaking push rod (4) in the auxiliary mechanism (200) is misaligned with the second pushing part (602) on the ratchet (6), and the ice-breaking function fails. S13: When the ratchet (6) reaches the fully locked position, the self-priming ends; S14: Perform self-priming reset, and the auxiliary mechanism (200) returns to its initial state; The ice-breaking assistance function includes the following steps: S21: The internal signal switch of the side door lock is triggered, giving a signal to the whole vehicle. The whole vehicle gives a signal to the actuator. When the electric opening mechanism (300) performs the door opening function but the side door is not opened, the side door lock is in a fully locked or half-locked state. The auxiliary ice-breaking function of the auxiliary mechanism (200) is activated. The actuator controls the drive motor (1) to work and drives the rotating rod (3) to rotate through the transmission gear (2). The self-priming interrupt rod (8) in the electric opening mechanism (300) is displaced and pushed to the self-priming push rod (5). The ice-breaking push rod (4) in the auxiliary mechanism (200) pushes the ratchet (6) to reverse and perform auxiliary door opening. S22: When performing the auxiliary ice-breaking function, the pushing surface of the self-priming push rod (5) in the auxiliary mechanism (200) is misaligned with the first pushing part (601) on the ratchet (6), and the auxiliary self-priming function fails. S23: The auxiliary ice-breaking function is interrupted when the car door is opened; S24: Perform ice breaking and reset, and the auxiliary mechanism (200) returns to its initial state; S25: After the controller receives the door open signal, the power switch is reset, and at the same time, the self-closing interrupt rod (8) is reset.

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