Mechanism for controlling opening and closing of automobile door through automobile electric limiter

Abstract

The utility model relates to the technical field of automobile electric limiters, in particular to an automobile electric limiter control automobile door opening and closing mechanism which comprises a power assembly used for providing a main power source with an automobile door opening and closing function, a shell, a transmission assembly and a pull rod, and the transmission assembly and the pull rod are fixedly installed in the shell. One end of the worm is fixedly connected with the power assembly, the other end of the worm is in transmission fit with the gear, the gear and the lead screw rotate synchronously, the lead screw is sleeved with the sliding seat, the shell guides and limits the sliding seat, and the sliding seat can move in the axial direction of the lead screw. One end of the pull rod is fixedly connected with the sliding seat, and the other end of the pull rod extends out of the shell and is connected with vehicle door accessories. The structure is simple, the number of parts is reduced, assembling procedures are reduced, meanwhile, the mode that a metal material is matched with a plastic material is adopted, noise is effectively lowered, and product performance is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile electric limiters, in particular to an automobile electric limiter control door opening and closing mechanism. BACKGROUND

[0002] The automobile electric limiter is an important component in a modern automobile, which is mainly used for controlling the opening and closing angle and stroke of a door to ensure that the door stops moving at a predetermined position. With the continuous development of automobile technology, some vehicle models have been equipped with the function of electrically opening and closing the door to improve the convenience of getting in and out of the vehicle and enhance the comfort and high-end nature of the vehicle.

[0003] In the related art, an automobile electric limiter is used to realize the function of electrically opening and closing the door. The conventional electric limiter is divided into L-type and T-type, and the basic principle of both is to use a motor as a power unit to control the movement of a pull rod through a reduction transmission mechanism, thereby driving the door to realize the function of electrically opening and closing.

[0004] However, the structure of the L-type electric limiter is relatively complex, and complex transmission components such as a planetary gear box and a variable-tooth parallel gear set are required, which reduces the noise index, reduces the process assembly, and brings great challenges to large-scale production and quality stability. CONTENT OF THE INVENTION

[0005] In order to provide an electric limiter with simple structure and reduced noise, the application provides an automobile electric limiter control door opening and closing mechanism to improve the process assembly.

[0006] The automobile electric limiter control door opening and closing mechanism provided by the application adopts the following technical scheme:

[0007] An automobile electric limiter control door opening and closing mechanism, comprising a power assembly for providing a main power source for a door opening and closing function, a housing, and a transmission assembly fixedly installed in the housing,

[0008] The transmission assembly comprises a worm, a gear, a lead screw and a sliding seat, one end of the worm is fixedly connected with the power assembly, the other end of the worm is in transmission cooperation with the gear, the gear rotates synchronously with the lead screw, the sliding seat is sleeved on the lead screw, the housing guides and limits the sliding seat, and the sliding seat can move in the axial direction of the lead screw;

[0009] The pull rod is fixedly connected with the sliding seat at one end, and the other end of the pull rod extends out of the housing and is connected with a door accessory.

[0010] The power assembly provides a main power source to drive the worm to rotate, the worm is in transmission cooperation with the gear, the gear is in synchronous rotation with the screw rod, the sliding seat is moved along the axial direction of the screw rod, the sliding seat drives the pull rod to move, the pull rod drives the door to move, and the function of electrically opening and closing the door is realized.

[0011] Optionally, the sliding seat comprises a fixed block, a ball head and a movable block, one end of the ball head is fixedly connected with the fixed block, the other end of the ball head is clamped in the movable block and can rotate in the movable block, the end of the movable block away from the fixed block is fixedly connected with the pull rod, and the screw rod passes through the fixed block and the fixed block can be moved along the axial direction of the screw rod.

[0012] By adopting the above technical scheme, when the screw rod rotates, the fixed block is moved along the axial direction of the screw rod, the fixed block drives the movable block to move through the ball head, and the pull rod is synchronously moved with the movable block, so that the function of electrically opening and closing the door is realized; the other end of the ball head is clamped in the movable block and can rotate in the movable block, which provides a certain degree of freedom for the movement process of the pull rod and improves the self-adaptability during product assembly.

[0013] Optionally, the ball head protrudes a spherical part, the movable block is recessed to form a recessed part, and the spherical part is clamped in the recessed part and can rotate in the recessed part.

[0014] By adopting the above technical scheme, the cooperation of the spherical part and the recessed part can realize self-adaptation in multiple directions, has high flexibility and stable transmission process, so that the pull rod has a certain degree of freedom during movement.

[0015] Optionally, a plurality of limiting plates are fixed on the periphery of the recessed part, and the limiting plates limit the spherical part.

[0016] By adopting the above technical scheme, the limiting plates further limit the position of the spherical part, so that the spherical part can rotate in the recessed part, but cannot be separated from or displaced from the recessed part, thereby improving the self-adaptability of product assembly.

[0017] Optionally, the screw rod passes through the gear, the gear and the screw rod are an integrated injection molding part, and the worm is made of metal.

[0018] By adopting the above technical scheme, the metal worm and the plastic gear are in transmission cooperation, which helps to reduce noise and vibration during use; and the worm and the gear screw rod integrated injection molding part made of metal can be formed by extrusion and injection molding, has high production line stability, improves the consistency of parts, effectively improves the stability and reliability of mass production process, and improves the assembly process.

[0019] Optionally, the fixed block is made of metal material.

[0020] By adopting the above technical scheme, the fixed block made of metal material and the lead screw made of plastic material are matched with each other, further reducing the noise and vibration in the use process, and improving the product performance.

[0021] Optionally, the ball head is made of metal material, and the movable block is made of plastic material.

[0022] By adopting the above technical scheme, the ball head made of metal material and the movable block made of plastic material are matched, which can meet the requirement of freedom degree, reduce the noise and vibration in the use process, and improve the product performance.

[0023] Optionally, the movable block and the pull rod are made by insert injection molding process.

[0024] By adopting the above technical scheme, the assembly process is simplified, the quality stability is good, and the scale production is suitable.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. The transmission mode of the worm and the gear has a large transmission ratio, is stable in the transmission process, has small noise and vibration, and has a simple and compact overall structure, which helps to improve the assembly of the process;

[0027] 2. By setting the spherical part of the ball head and the recessed part of the movable block, the self-adaptation of multiple directions is realized, the flexibility is high, and the transmission process is stable, so that the pull rod has a certain degree of freedom in the movement process, improving the self-adaptability of the product assembly;

[0028] 3. By respectively adopting metal material and plastic material parts in contact in the transmission process, the noise and vibration in the use process are reduced, and the product performance is improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0030] Figure 2 is a schematic diagram of the structure of the embodiment of the present application without the shell and the electronic module;

[0031] Figure 3 is a sectional view of the sliding seat and the connection of the sliding seat with the pull rod and the lead screw in the embodiment of the present application;

[0032] Figure 4 is a schematic diagram of the structure of the limiting plate in the movable block in the embodiment of the present application.

[0033] Fig. 1, power assembly; 11, electronic module; 2, shell; 21, limiting part; 22, protection part; 3, transmission assembly; 31, worm; 32, gear; 33, screw rod; 34, sliding seat; 341, fixed block; 342, movable block; 343, ball head; 344, threaded hole; 345, spherical part; 346, recessed part; 347, limiting plate; 4, pull rod; 41, door panel. DETAILED DESCRIPTION

[0034] The following will be described in detail below with reference to the accompanying drawings Figures 1-4 The present application is further described in detail.

[0035] The present application discloses a kind of automobile electric limiters control door opening and closing mechanism, refer to Figure 1 And Figure 2 Including power assembly 1, shell 2 and fixed installation in shell 2 transmission assembly 3 and pull rod 4, power assembly 1 is used to provide the initiative power source of door opening and closing function;Transmission assembly 3 includes worm 31, gear 32, screw rod 33 and sliding seat 34, one end of worm 31 is fixedly connected with power assembly 1, the other end of worm 31 is transmission matched with gear 32;Screw rod 33 is arranged in gear 32, and gear 32 and screw rod 33 synchronous rotation;Sliding seat 34 is sleeved on screw rod 33, and sliding seat 34 can move along the axial direction of screw rod 33 when screw rod 33 rotates;One end of pull rod 4 is fixedly connected with sliding seat 34, and the other end of pull rod 4 extends from shell 2 and is connected with door accessory.

[0036] When using, power assembly 1 drives worm 31 to rotate, worm 31 and gear 32 transmission matched, gear 32 and screw rod 33 synchronous rotation, so that sliding seat 34 moves along the axial direction of screw rod 33, sliding seat 34 drives pull rod 4 to move, pull rod 4 drives door to move, realizes the function of electric opening and closing of door.

[0037] Shell 2 includes limiting part 21 and protection part 22, limiting part 21 and protection part 22 are both hollow shell structure, and protection part 22 is fixedly connected with limiting part 21.Worm 31 and gear 32 are installed in protection part 22, sliding seat 34 is installed in limiting part 21, screw rod 33 passes through limiting part 21 and protection part 22, the shape of sliding seat 34 and limiting part 21 is consistent, limiting part 21 guides and limits sliding seat 34, so that sliding seat 34 can slide along the axial direction of screw rod 33 in limiting part 21;Pull rod 4 extends from the end of protection part 22 away from limiting part 21.

[0038] Power assembly 1 adopts motor, worm 31 is fixedly connected with the output shaft of motor.One end of motor is equipped with electronic module 11, motor is electrically connected with electronic module 11, for controlling motor start-stop and speed, and electronic module 11 is fixedly connected below limiting part 21.

[0039] The worm 31 and the gear 32 adopt an external meshing mode, the axis of the gear 32 is perpendicular to the axis of the worm 31, so as to convert the movement along the axis direction of the worm 31 into the movement along the axis direction of the gear 32; the transmission mode of the worm 31 and the gear 32 has a large transmission ratio, the structure is simple and compact, and the transmission process is stable, and the noise and vibration are small.

[0040] In the embodiment, the worm 31 is made of metal material, the gear 32 and the screw rod 33 are gear and screw rod integrated injection molded parts, the worm 31 and the gear and screw rod integrated injection molded part are formed by extrusion and injection molding, the line stability is high, the consistency of the parts is improved, the stability and reliability of the mass production process are effectively improved, and the vibration and noise are further reduced.

[0041] Referring to Figure 2 and Figure 3 , the sliding seat 34 includes a fixed block 341, a movable block 342 and a ball head 343, one end of the ball head 343 is fixedly connected with the fixed block 341, the other end of the ball head 343 is rotatably connected with the movable block 342; the pull rod 4 is fixedly connected with the movable block 342, the screw rod 33 passes through the fixed block 341, and the pull rod 4 is arranged in parallel with the screw rod 33. The rotation of the screw rod 33 causes the fixed block 341 to move along the axis direction of the screw rod 33, the fixed block 341 drives the movable block 342 to move through the ball head 343, and the pull rod 4 moves synchronously with the movable block 342, so as to realize the function of electrically opening and closing the door.

[0042] The fixed block 341 has an L-shaped structure, one end of the fixed block 341 is riveted with the ball head 343, so as to effectively ensure the connection strength of the fixed block 341 and the ball head 343 and ensure the normal function of the parts in the whole life; the other end of the fixed block 341 is provided with a threaded hole 344, the axis of the threaded hole 344 is parallel to the axis direction of the screw rod 33, and the screw rod 33 is screw-connected in the threaded hole 344. Since the fixed block 341 is guided and limited by the limiting part 21, when the screw rod 33 rotates, the fixed block 341 only moves along the axis direction of the screw rod 33, the transmission efficiency is high, the rigidity is strong, and the positioning is accurate.

[0043] In the embodiment, the fixed block 341 is made of metal material, which interacts with the plastic material of the screw rod 33, further reduces the running noise and vibration, and further improves the performance of the product.

[0044] Referring to Figure 3 and Figure 4The lower end of the ball head 343 protrudes a spherical part 345, and the upper end of the movable block 342 is recessed to form a recessed part 346 downward, which is matched with the spherical part 345, so that the spherical part 345 can be clamped in the recessed part 346. Six limiting plates 347 are uniformly fixed on the circumferential side of the recessed part 346, and one end of the limiting plate 347 close to the center of the recessed part 346 is provided with an arc surface matched with the spherical part 345. The limiting plate 347 limits the spherical part 345, so that the spherical part 345 can rotate in the recessed part 346, but cannot be separated from or displaced from the recessed part 346, thereby realizing the effect of self-adapting deviation of the ball head 343 and the movable block 342 during assembly, and effectively improving the self-adapting ability of product assembly.

[0045] The pull rod 4 is fixedly connected to one end of the movable block 342 away from the recessed part 346, and the end of the pull rod 4 away from the movable block 342 extends out of the protection part 22 and is fixedly installed with a door panel 41, which is connected with the vehicle body and used for pulling the door to open and close.

[0046] The ball head 343 and the pull rod 4 are made of metal material, the movable block 342 is made of plastic material, and the movable block 342 and the pull rod 4 are made by insert injection molding process, which further simplifies the assembly process.

[0047] The implementation principle of the automobile electric limiter for controlling the door opening and closing mechanism disclosed in the embodiment of the application is as follows: the power assembly 1 provides a driving power source to drive the worm 31 to rotate, the worm 31 is in transmission cooperation with the gear 32, the gear 32 is synchronously rotated with the lead screw 33, so that the sliding seat 34 moves along the axis direction of the lead screw 33, the sliding seat 34 drives the pull rod 4 to move, the pull rod 4 drives the door to move, and the function of electrically opening and closing the door is realized; the application has simple structure, simplifies the number of parts and reduces the assembly process, and simultaneously adopts the cooperation mode of metal material and plastic material, effectively reduces noise and improves product performance.

[0048] The above are preferred embodiments of the application, which do not limit the protection scope of the application, so that: equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A control door opening and closing mechanism of an automobile electric limiter, characterized by, The power assembly (1) comprising a main power source for providing a door opening and closing function, a shell (2), and a transmission assembly (3) fixedly installed in the shell (2): The transmission assembly (3) comprising a worm (31), a gear (32), a screw rod (33) and a sliding seat (34), one end of the worm (31) is fixedly connected with the power assembly (1), the other end of the worm (31) is in transmission cooperation with the gear (32), the gear (32) rotates synchronously with the screw rod (33), the sliding seat (34) is sleeved on the screw rod (33), the shell (2) guides and limits the sliding seat (34), and the sliding seat (34) is movable along the axial direction of the screw rod (33); A pull rod (4), one end of the pull rod (4) is fixedly connected with the sliding seat (34), and the other end of the pull rod (4) extends out of the shell (2) and is connected with a door accessory.

2. A motorized limiter for controlling a door opening and closing mechanism of a vehicle according to claim 1, wherein The sliding seat (34) comprises a fixed block (341), a ball head (343) and a movable block (342), one end of the ball head (343) is fixedly connected with the fixed block (341), the other end of the ball head (343) is clamped in the movable block (342) and is rotatable in the movable block (342); the end of the movable block (342) away from the fixed block (341) is fixedly connected with the pull rod (4); the screw rod (33) penetrates the fixed block (341), and the fixed block (341) is movable along the axial direction of the screw rod (33).

3. A motorized limiter control door opening and closing mechanism for a vehicle as defined in claim 2, wherein The ball head (343) protrudes a spherical part (345), the movable block (342) is recessed to form a recessed part (346), and the spherical part (345) is clamped in the recessed part (346) and is rotatable in the recessed part (346).

4. The electrically operated limiter according to claim 3, wherein The recessed part (346) is fixed with a plurality of limiting plates (347) on the circumferential side, and the limiting plates (347) limit the spherical part (345).

5. The electrically operated limiter according to claim 2, wherein The screw rod (33) penetrates the gear (32), the gear (32) and the screw rod (33) are an integral injection molding piece, and the worm (31) is made of metal material.

6. A motorized limiter for controlling a door opening and closing mechanism of a vehicle according to claim 5, wherein The fixed block (341) is made of metal material.

7. A motorized limiter for controlling a door opening and closing mechanism of a vehicle according to claim 6, wherein The ball head (343) is made of metal material, and the movable block (342) is made of plastic material.

8. A motorized limiter for controlling a door opening and closing mechanism of a vehicle according to claim 7, wherein The movable block (342) and the pull rod (4) are made by insert injection molding process.

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