Automobile automatic driving mechanism with combined housing

Abstract

The present invention belongs to the field of automobile door drive technology and provides an automobile automatic drive mechanism with a combined housing, comprising a gear set, a screw assembly, a push rod, a motor output assembly, and a housing, wherein the output end of the motor output assembly is connected to the gear set, one end of the screw assembly is connected to the gear set, one end of the push rod is connected to the screw assembly, the housing is composed of a first housing and a second housing, the motor output assembly and the gear set are installed in the first housing, and the screw assembly and the push rod are installed in the second housing. The advantages of the present invention are that it can realize the automatic opening and closing of automobile doors, has a simple structure, a small size, is easy to install, and has low operating noise. The structure of the combined housing separates the first housing of fixed length from the second housing of constantly changing length. When the length of the mechanism needs to be changed due to different vehicle models, it can be more convenient and quick by only changing the length of the screw housing portion, and has more advantages in cost and development cycle.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile door driving, and relates to an automobile automatic driving mechanism with a combined shell. Background Art

[0002] With the development of automotive automation and intelligentization, the demand for automatic door opening and closing mechanisms is increasing, greatly improving the user experience and enhancing user convenience. This mechanism is highly practical, realizing the automatic opening and closing of car doors, making travel more convenient. In addition, due to different vehicle models, installation locations, and spatial environments, it is necessary to design an automatic door drive mechanism that is compact and easy to adjust the mechanism length. Currently, there are also electric door mechanisms, most of which use zippers / racks / hinge shafts / orthogonal worm gears. The overall length of the mechanism can be changed by changing the length of the rack or the screw. However, there are disadvantages such as a large number of parts, a complex structure, and a large space occupation. For example, the parallel structure described in the invention patent (publication number CN113958223A) is small in size, but it is not convenient to change the overall length of the mechanism because the plastic shell of the mechanism is a whole. When the shell length is changed, a new mold must be created, which increases the production cycle, mold and development costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an automobile automatic drive mechanism with a combined shell in response to the current status of the existing technology. Due to the structure of the combined shell, the total length of the mechanism can be easily changed, with low cost and convenience.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: an automobile automatic drive mechanism with a combined housing, including a gear group, a screw assembly, a push rod, a motor output assembly and a housing, the output end of the motor output assembly is connected to the gear group, one end of the screw assembly is connected to the gear group, and one end of the push rod is connected to the screw assembly. It is characterized in that the housing is composed of a first housing and a second housing, the motor output assembly and the gear group are installed in the first housing, and the screw assembly and the push rod are installed in the second housing.

[0005] In the above-mentioned automatic drive mechanism for an automobile with a combined housing, the first housing is L-shaped, and the first housing includes a motor mounting portion and a gear accommodating portion. The motor output assembly is installed in the motor mounting portion, the gear set is installed in the gear accommodating portion, and a housing cover is installed on the side of the gear accommodating portion.

[0006] In the above-mentioned automatic drive mechanism of an automobile with a combined shell, the second shell includes a shell part, the shell part has a hollow part inside, the screw rod assembly is located in the hollow part, one end of the push rod extends into the hollow part and is connected to the screw rod assembly, and the other end of the push rod extends out of the shell part and is connected to the body bracket.

[0007] In the above-mentioned automatic drive mechanism for an automobile with a combined housing, the first housing has a combined platform portion, the second housing is located on the combined platform portion, a first locking hole is provided next to the left port of the second housing, a second locking hole is provided on the gear accommodating portion, and a third locking hole is provided on the housing cover, and a fixing bolt passes through the third locking hole, the second locking hole and the first locking hole at the same time and connects and fixes the housing cover, the first housing and the second housing.

[0008] In the above-mentioned automatic driving mechanism for an automobile with a combined housing, the length of the first housing is fixed, and the length of the second housing is variable.

[0009] In the above-mentioned automatic driving mechanism for an automobile with a combined housing, a first sealing ring is provided at the connection between the gear accommodating portion and the left port of the second housing.

[0010] In the above-mentioned automatic driving mechanism of an automobile with a combined shell, a mounting seat is provided at the right port of the second shell, and the mounting seat is connected to the right port of the second shell by a fixing bolt. A second sealing ring is provided at the connection between the right port of the second shell and the mounting seat.

[0011] In the above-mentioned automatic drive mechanism of an automobile with a combined housing, the mounting seat is provided with a threaded mating component, the screw assembly includes a screw nut and a screw, the two ends of the screw are respectively connected between the gear set and the threaded mating component, the screw nut is sleeved on the screw, and one end of the push rod is connected to the screw nut.

[0012] In the above-mentioned automatic driving mechanism for an automobile with a combined housing, the motor output assembly is electrically connected to a wiring harness connection line.

[0013] Compared with the existing technology, the advantages of the present invention are that it can realize automatic opening and closing of automobile doors, has a simple structure, reliable functions, small size, easy installation, low operating noise, and a combined shell structure, which separates a first shell with a fixed length from a second shell with a frequently changing length. When the length of the mechanism needs to be changed due to different car models, it can be more convenient and quick by only changing the length of the screw housing part, and has more advantages in cost and development cycle, which is conducive to changing the total length of the mechanism, and is low in cost, convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1A schematic diagram of the structure of the automatic driving mechanism of the automobile with a combined housing and the vehicle door;

[0015] Figure 2 Schematic diagram of the exploded structure of the automatic driving mechanism of the automobile with a combined housing;

[0016] Figure 3 Schematic diagram of the internal structure of a car's automatic drive mechanism. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0019] In the figure, there are a vehicle door 100; an automatic driving mechanism of the vehicle 200; an ECU controller 300; a vehicle body bracket 400; a push rod 500; a gear set 600; a screw assembly 700; a screw nut 701; a screw 702; a motor output assembly 800; a motor 801; a reducer 802; a brake 803; a transmission shaft 804; a housing 900; a first housing 901; a motor mounting portion 9011; a gear accommodating portion 9012; a combined platform portion 9013; a second housing 902; a housing cover 903; a wiring harness connecting line 1000; a fixing bolt 1001; a first sealing ring 1002; a second sealing ring 1003; a mounting seat 1004; and a threaded mating component 1005.

[0020] like Figure 1As shown, the automobile automatic drive mechanism 200 with a combined shell is installed and fixed on the hinge side of the middle part of the door 100, that is, installed at the original limiter position of the door. In the electric working condition, when the automobile automatic drive mechanism 200 receives the door opening / closing signal from the ECU controller 300, the internal motor 801 starts to run, and the push rod 500 generates a push / pull force through the internal power transmission of the drive mechanism. The drive mechanism is fixed to the door 100, the body bracket 400 is fixed to the body, and the push rod 500 is extended and retracted to enable the door 100 to perform an electric opening / closing action.

[0021] like Figure 3 As shown, specifically, the automobile automatic drive mechanism 200 includes a gear set 600, a screw assembly 700, a push rod 500, a motor output assembly 800 and a housing 900. The output end of the motor output assembly 800 is connected to the gear set 600, one end of the screw assembly 700 is connected to the gear set 600, one end of the push rod 500 is connected to the screw assembly 700, and the motor output assembly 800 is electrically connected to the wiring harness connection line 1000, and the wiring harness connection line 1000 is electrically connected to the ECU controller 300 for control. Here, the motor output assembly 800 includes a motor 801, a reducer 802, a brake 803 and a transmission shaft 804. The transmission shaft 804 is provided with a spline, so that the rotational power of the motor 801 is transmitted to the gear set 600. The reducer 802 and the brake 803 can achieve deceleration and braking effects. In this embodiment, the gear set 600 has three groups.

[0022] like Figure 2As shown, the biggest innovation of this patent is that the shell 900 is composed of a first shell 901 and a second shell 902, the motor output assembly 800 and the gear set 600 are installed in the first shell 901, and the screw assembly 700 and the push rod 500 are installed in the second shell 902. The shell here adopts an extrusion molding process and has a variable length. The length of the first shell 901 is fixed and the length of the second shell 902 is variable. Here, the motor output assembly 800 is mainly placed in the first shell 901 with a fixed length, and the screw assembly 700 is placed in the second shell 902 with a variable length. In this way, when the length of the mechanism needs to be changed due to different vehicle models, it is sufficient to adapt to the screw assembly 700 of different lengths by only changing the length of the second shell 902. It can be more convenient and quick, and has more advantages in cost and development cycle.In order to facilitate installation, the first shell 901 is L-shaped. The first shell 901 includes a motor mounting portion 9011 and a gear accommodating portion 9012. The motor output assembly 800 is installed in the motor mounting portion 9011, and the gear set 600 is installed in the gear accommodating portion 9012. A shell cover 903 is installed on the side of the gear accommodating portion 9012. The shell cover 903 can better protect the gear set 600. The second shell 902 includes a shell portion, and the shell portion has a hollow portion inside. The screw assembly 700 is located in the hollow portion, and one end of the push rod 500 extends into the hollow portion and is connected to the screw assembly 700. The screw assembly 700 is connected, and the other end of the push rod 500 extends out of the housing portion and is connected to the body bracket 400, so as to ensure the smooth rotation of the screw assembly 700. The first housing 901 has a combination platform portion 9013, and the second housing 902 is located on the combination platform portion 9013. A first locking hole is opened on the left port of the second housing 902, a second locking hole is opened on the gear accommodating portion 9012, and a third locking hole is opened on the housing cover 903. The fixing bolt 1001 passes through the third locking hole, the second locking hole and the first locking hole at the same time and is connected to the fixed housing. The cover 903, the first shell 901 and the second shell 902 are thus assembled into one. In order to ensure the sealing of the connection between the shells, a first sealing ring 1002 is provided at the connection between the gear accommodating portion 9012 and the left port of the second shell 902. A mounting seat 1004 is provided at the right port of the second shell 902. The mounting seat 1004 is connected to the right port of the second shell 902 by a fixing bolt 1001. The right port of the second shell 902 is connected to the mounting seat 1004. A second sealing ring 1003 is provided at the mating position, and a threaded mating component 1005 is provided at the mounting seat 1004. The screw assembly 700 includes a screw nut 701 and a screw 702. The two ends of the screw 702 are respectively connected between the gear set 600 and the threaded mating component 1005. The screw nut 701 is sleeved on the screw 702, and one end of the push rod 500 is connected to the screw nut 701. In this way, when the motor is working, it drives the gear set 600 to rotate, and the gear set 600 drives the screw 702 to rotate, thereby driving the push rod 500 to move to realize the electric opening / closing action of the car door 100.

[0023] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them with similar methods without departing from the scope defined by the spirit of the present invention.

Claims

1. An automatic driving mechanism for an automobile with a combined housing, comprising a gear set, a screw assembly, a push rod, a motor output assembly, and a housing, wherein the output end of the motor output assembly is connected to the gear set, one end of the screw assembly is connected to the gear set, and one end of the push rod is connected to the screw assembly, characterized in that: The housing is composed of a first housing and a second housing, the motor output assembly and the gear set are installed in the first housing, and the screw assembly and the push rod are installed in the second housing; The first housing is L-shaped and includes a motor mounting portion and a gear accommodating portion. The motor output assembly is mounted in the motor mounting portion, the gear set is mounted in the gear accommodating portion, and a housing cover is mounted on the side of the gear accommodating portion. The second housing includes a housing portion having a hollow portion therein, a screw assembly being located in the hollow portion, one end of a push rod extending into the hollow portion and connected to the screw assembly, and the other end of the push rod extending out of the housing portion and connected to the vehicle body bracket; The first housing has a combined platform portion, the second housing is located on the combined platform portion, a first locking hole is opened on the left side of the second housing, a second locking hole is opened on the gear accommodating portion, and a third locking hole is opened on the housing cover, and a fixing bolt passes through the third locking hole, the second locking hole and the first locking hole at the same time to connect and fix the housing cover, the first housing and the second housing; The length of the first shell is fixed, and the length of the second shell is variable; A mounting seat is provided at the right end of the second housing, and the mounting seat is connected to the right end of the second housing via a fixing bolt. A second sealing ring is provided at the connection between the right end of the second housing and the mounting seat; The mounting seat is provided with a threaded matching component, and the screw assembly includes a screw nut and a screw, the two ends of the screw are respectively connected to the gear set and the threaded matching component, the screw nut is sleeved on the screw, and one end of the push rod is connected to the screw nut.

2. The automatic driving mechanism of an automobile with a combined housing according to claim 1, characterized in that: A first sealing ring is provided at the connection point between the gear accommodating portion and the left port of the second housing.

3. The automatic driving mechanism of a car with a combined housing according to claim 1, characterized in that: The motor output assembly is electrically connected to a wiring harness.

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