CN219034449U

CN219034449U - Automobile side door ejection mechanism

Info

Publication number: CN219034449U
Application number: CN202222538645.3U
Authority: CN
Inventors: 陈庭
Original assignee: Ningbo Huakai Electronic Technology Co ltd
Current assignee: Ningbo Huakai Electronic Technology Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-05-16
Anticipated expiration: 2032-09-23

Abstract

The utility model discloses an ejection mechanism of an automobile side door, which comprises a shell, a transmission assembly, an ejection assembly, an unlocking rod and a motor for providing power, wherein the transmission assembly, the ejection assembly and the unlocking rod are arranged in the shell; the ejection assembly comprises a transmission unit and an ejection unit, wherein the transmission unit is used for bearing torque of the transmission assembly and driving the ejection unit to extend out of or retract into the shell; the transmission assembly comprises a first transmission wheel and a second transmission wheel, the first transmission wheel is connected with the motor, and the second transmission wheel is connected with the transmission unit and meshed with the first transmission wheel; the unlocking rod is arranged in the shell in a penetrating way and is abutted with the first driving wheel; the first driving wheel is provided with a first position and a second position, can move between the first position and the second position under the pushing of the unlocking rod, is meshed with the second driving wheel when in the first position, and is separated from the second driving wheel when in the second position.

Description

Automobile side door ejection mechanism

Technical Field

The utility model relates to the technical field of automobiles, in particular to an automobile side door ejection mechanism.

Background

The existing automobile door is generally provided with an outer handle, after a user unbuckles the automobile, the door lock is released by pulling the outer handle outwards, then the outer handle is pulled continuously to open the automobile door, and along with the development of the automobile industry, some automobiles are provided with a door ejection mechanism for ejecting the automobile door by a small angle in advance when the automobile door needs to be opened by passengers, so that the door opening operation of the passengers is facilitated.

The prior art has the following defects:

1. if the mechanism is damaged or is powered off, the mechanism cannot be retracted manually, so that the door cannot be closed, and a customer cannot use the vehicle.

2. The motor torque adopted by the mechanism is smaller, so that the output force reaches the required standard, the gear ratio can only be increased, and the ejection time is slow.

3. After the mechanism is ejected and retracted in place, the in-place signal is transmitted through the micro switch, and only a fixed stroke is provided, so that the adjustability is poor.

Disclosure of Invention

In order to solve the technical problems in the background art, the utility model provides an ejection mechanism of an automobile side door.

The technical aim of the utility model is realized by the following technical scheme:

the ejection mechanism comprises a shell, a transmission assembly, an ejection assembly, an unlocking rod and a motor for providing power, wherein the transmission assembly, the ejection assembly and the unlocking rod are arranged in the shell;

the ejection assembly comprises a transmission unit and an ejection unit, wherein the transmission unit is used for bearing torque of the transmission assembly and driving the ejection unit to extend out of or retract into the shell;

the transmission assembly comprises a first transmission wheel and a second transmission wheel, the first transmission wheel is connected with the motor, and the second transmission wheel is connected with the transmission unit and meshed with the first transmission wheel;

the unlocking rod is arranged in the shell in a penetrating way and is abutted with the first driving wheel;

the first driving wheel is provided with a first position and a second position, can move between the first position and the second position under the pushing of the unlocking rod, is meshed with the second driving wheel when in the first position, and is separated from the second driving wheel when in the second position.

Preferably, an elastic component is arranged in the shell, one end of the elastic component is abutted with the shell, and the other end of the elastic component is abutted with the first driving wheel. Through the improvement, when the unlocking rod is pressed, the elastic component is compressed, the first driving wheel is separated from the second driving wheel, and when the elastic component is in a spring-open state, the first rotating wheel and the second driving wheel are kept in a meshed state.

Preferably, the first driving wheel comprises a turbine section and a gear section, a worm is arranged on the motor, the turbine section is connected with the worm, and the gear section is meshed with the driving wheel. Through the improvement, the worm is meshed with the turbine to enable the top-level mechanism to have a self-locking function, and the gear section is meshed with the second driving wheel to enable the second driving wheel to rotate.

Preferably, the elastic assembly comprises an end cap which is interposed on the housing and on the first transmission wheel, and an elastic element which is arranged between the end caps. Through the improvement, the abutting area between the end cover and the shell and the abutting area between the end cover and the first driving wheel are larger, and the elastic element is not easy to separate.

Preferably, a fixed shaft is arranged in the shell, and the unlocking rod, the first driving wheel and the elastic component are all arranged on the fixed shaft in a penetrating way. Through the improvement, the unlocking rod, the first driving wheel and the elastic component all axially move on the fixed shaft, and the unlocking rod is used for pushing the first driving wheel to extrude the elastic component, so that the first driving wheel and the second driving wheel are matched or separated.

Preferably, a limiting part is formed on the unlocking rod, and the limiting part is abutted between the first driving wheel and the shell. Through the improvement, the unlocking lever wheel is propped between the shell and the first driving wheel, and the limiting block cannot penetrate through the shell, so that automatic reset is realized after the unlocking lever is pressed.

Preferably, the second driving wheel comprises an external gear and an internal gear, the internal gear is embedded in the external gear, a spline is arranged on the internal gear, and the driving unit is connected with the spline. Through above improvement, be provided with the spline on the internal gear and be connected with the drive unit, make the internal gear can bear bigger moment of torsion and cooperate bigger motor.

Preferably, the external gear is made of a material, and the internal gear is made of a metal material. Through above improvement, the internal gear adopts the metal material to make internal gear intensity higher, and the external gear adopts the plastics material, makes holistic noise lower.

Preferably, a control board is arranged at the bottom of the motor, and the control board transmits quantitative signals when the motor rotates for one circle. Through the improvement, the control board rotates the starting signal through the motor to enable the control precision of the ejection unit to be higher, and the stroke can be adjusted through the signal according to the requirement of each item.

Preferably, the bottom of the motor is provided with a control board and a plug pin seat, the control board is connected with the plug pin seat through a patch, the bottom cover of the motor is also provided with a rear cover, and a via hole for the plug pin seat to pass through is formed in the rear cover. Through above improvement, the control panel is connected through the paster with the probe, makes the electrical property better, and the reliability is higher to establish in the motor bottom with the back lid and make the probe seat take place not squint, and further improved the durability of probe.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. the whole structure has a self-locking function by adopting a driving mode of the turbine and the worm, so that the mechanism is always in an ejection state under the condition that a user does not open the door, and the condition of clamping a door is prevented;

2. the unlocking rod pushes the turbine to separate the second gear from the first gear on the turbine, so that the ejection unit can be manually retracted for emergency treatment when sudden power failure occurs, and the ejection mechanism is not retracted after ejection;

3. the control board is arranged to send pulse signals according to the rotation of the motor, so as to control the ejection and retraction of the ejection unit, meet the requirements of different vehicle types, and adjust the stroke according to the signals;

4. the inner gear metal insert of the second driving wheel is injection molded in the outer gear, and the inner gear is provided with a spline which is connected with the driving unit, so that the ejection speed is improved by matching with the high-torque motor, and the outer gear is made of plastic, so that the low noise requirement is ensured;

5. the control board is connected with the pin seat through the patch, and the pin is limited by the motor rear cover, so that the reliability and shock resistance of the control board are improved, and the position of the pin is not easy to deviate.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a transmission assembly according to the present utility model;

FIG. 3 is a cross-sectional view of the transmission unit of the present utility model mated with an ejector unit;

FIG. 4 is a cross-sectional view of the interlock lever of the present utility model mated with a first drive wheel and an elastic assembly;

FIG. 5 is an exploded view of the engagement of the transmission assembly with the spring assembly and the release lever of the present utility model;

FIG. 6 is an exploded view of the motor of the present utility model mated with the ferrule base, control board and rear cover;

FIG. 7 is an exploded view of a second drive wheel of the present utility model;

FIG. 8 is a schematic view of the structure of the first driving wheel of the present utility model;

in the figure: 1. a housing; 2. a transmission assembly; 3. an ejection assembly; 4. a base; 5. a gear box; 6. a motor; 101. a transmission unit; 102 an ejection unit; 103. unlocking the rod; 104. a first driving wheel; 105. a second driving wheel; 106. a worm; 107. a turbine section; 108. a gear segment; 109. an elastic component; 201. an elastic element; 202. an end cap; 203. an external gear; 204. an internal gear; 205. a fixed shaft; 206. a limit part; 207. a spline; 208. a control board; 209. a pin holder; 301. a rear cover; 302. a via hole; 303. a groove; 304. knurling;

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that, although the terms upper, middle, lower, top, end, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another for ease of understanding and are not used to define any directional or sequential limitation.

As shown in fig. 1-8, an ejection mechanism of a side door of an automobile comprises a shell 1, a transmission assembly 2 arranged in the shell 1, and a motor 6 for providing power, wherein the shell 1 comprises a base 4 and a gear box 5, the ejection assembly 3 is arranged in the base 4, and the transmission assembly 2 is arranged in the gear box 5.

As shown in fig. 3, specifically, the ejection assembly 3 includes a transmission unit 101 and an ejection unit 102, the transmission assembly 2 includes a worm 106, a first transmission wheel 104 and a second transmission wheel 105, the motor 6 is connected with the first transmission wheel 104, the first transmission wheel 104 drives the second transmission wheel 105 to rotate, the second transmission wheel 105 is connected with the transmission unit 101, and the transmission unit 101 is in transmission connection with the ejection unit 102.

As shown in fig. 5, the first driving wheel 104 of the utility model adopts a duplex gear, so that the first driving wheel 104 comprises a turbine section 107 and a gear section 108, the output end of the motor 6 is connected with a worm 106, the turbine section 107 of the first driving wheel 104 is meshed with the worm 106, the gear section 108 of the first driving wheel 104 is meshed with the second driving wheel 105, the mechanism has a self-locking function through the turbine section 107 and the worm 106, and the gear section 108 can drive the second driving wheel 105 to rotate, so that the condition that a user retracts a door grip of the automobile under the condition of not opening the door is avoided.

As shown in fig. 7, more preferably, the second driving wheel 105 includes an inner gear 204 and an outer gear 203, the inner gear 204 is injection molded in the outer gear 203 through a metal insert, and knurling 304 is provided on the inner gear 204, and the strength is improved by adopting the metal knurling 304 to adapt to the motor 6 with higher torque, so that the ejection unit 102 has stronger ejection force, the ejection speed of the ejection unit 102 is faster, and the material of the outer gear 203 is plastic, so as to meet the requirement of low noise during operation.

As a further explanation of the overall operation of the ejector unit 102, the motor 6 drives the worm 106 to rotate, the gear section 108 on the first driving wheel 104 is meshed with the worm 106 through the turbine section 107 on the first driving wheel 104, the gear section 108 on the first driving wheel 104 is meshed with the second driving wheel 105, the driving unit 101 is driven to rotate, and as the driving unit 101 rotates, the ejector unit 102 is matched with the threads of the driving unit 101 to realize ejection or contraction.

One end of the unlocking rod 103 is arranged in the base 4 in a penetrating way and partially exposed out of the bottom of the base 4 for being pressed by a user, the other end of the unlocking rod is provided with a limiting part 206, the limiting part 206 is sleeved on the fixed shaft 205, when the elastic element 201 is in a jacking-up state, the limiting part 206 is abutted with the top of the base 4, and the limiting part 206 cannot penetrate through the base 4, so that the limiting block can only move towards the direction of the elastic component 109.

As a further explanation of unlocking the unlocking lever 103, the first driving wheel 104 has a first position and a second position, when the first driving wheel 104 is in the first position, and the elastic component 109 is in the ejection state, the turbine section 107 of the first driving wheel 104 is meshed with the worm 106, the first driving wheel 104 and the gear section 108 are meshed with the second driving wheel 105, and the manual ejection unit 102 cannot push the push rod back due to the self-locking function of the cooperation of the turbine and the worm 106;

as shown in fig. 5, further, an elastic assembly 109 is provided in the gear case 5, and one end of the elastic assembly 109 abuts against the gear case 5 and the other end abuts against the first transmission wheel 104.

The elastic assembly 109 comprises end caps 202 and elastic elements 201, grooves 303 are arranged on the gearbox 5 and the first driving wheel 104, the ends of the elastic elements are arranged in the grooves 303, and the elastic elements 201 are arranged between the end caps 202 and abut against the end caps 202.

A fixed shaft 205 is also arranged in the gear box 5, one end of the fixed shaft 205 is fixed on the gear box 5, the other end of the fixed shaft 205 is inserted on the base 4, and the first driving wheel 104, the elastic component 109 and the unlocking rod 103 are all arranged on the fixed shaft 205 in a penetrating way, so that the first driving wheel 104, the elastic component 109 and the unlocking rod 103 axially act along the fixed shaft 205.

When the user presses the unlocking lever 103 to expose the portion of the base 4, the unlocking lever 103 presses the first driving wheel 104, the first driving wheel 104 is moved to the second position, the elastic assembly 109 is in a compressed state, the gear section 108 of the first driving wheel 104 is disengaged from the gear of the second driving wheel 105, the worm 106 is also disengaged from the turbine section 107 of the first driving wheel 104, and the user can manually push the ejection unit 102 back into the base 4.

As shown in fig. 6, further, a control board 208 is disposed at the bottom of the motor 6, and the control board 208 sends a quantitative signal to the control end of the motor 6 according to the rotation number of the motor 6.

The bottom of the motor 6 is also provided with the pin seat 209, the control panel 208 is connected with the pin seat 209 through the patch, the reliability and shock resistance of the control panel 208 are improved, the bottom of the motor 6 is also provided with the rear cover 301, the rear cover 301 is provided with the through hole 302 for the pin seat 209 to pass through, the rear cover 301 passes through the pin and is arranged at the bottom of the motor 6, the pin is limited, and the pin position is not easy to deviate.

As a further explanation of the control board 208 controlling the ejection unit 102 to extend, in this embodiment, the control board 208 is a Hall pcba, the control board 208 sends an extension signal to the control end of the motor 6, the control end of the motor 6 controls the output end of the motor 6 to rotate, the ejection unit 102 extends along with the rotation of the output end of the motor 6, the control board 208 sends a quantitative Hall signal along with the rotation of the output end of the motor 6, when the ejection unit 102 extends to a specified position, the control board 208 sends a locating signal to the control end of the motor 6 to stop the output end of the motor 6, when the user finishes the door opening action, the control board 208 sends a retraction signal to the control end of the motor 6, the output end of the motor 6 rotates to retract the ejection unit 102, the control board 208 sends a quantitative Hall signal along with the rotation of the output end of the motor 6, and when the ejection unit 102 retracts to the original position, the control board 208 sends a locating signal to the control end of the motor 6 to stop the output end of the motor 6.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Claims

1. The ejection mechanism of the automobile side door is characterized by comprising a shell (1), a transmission assembly (2), an ejection assembly (3), an unlocking rod (103) and a motor (6) for providing power, wherein the transmission assembly (2), the ejection assembly (3) and the unlocking rod are arranged in the shell (1);

the ejection assembly (3) comprises a transmission unit (101) and an ejection unit (102), wherein the transmission unit (101) is used for bearing torque of the transmission assembly (2) and driving the ejection unit (102) to extend or retract into the shell (1);

the transmission assembly (2) comprises a first transmission wheel (104) and a second transmission wheel (105), the first transmission wheel (104) is connected with the motor (6), and the second transmission wheel (105) is connected with the transmission unit (101) and meshed with the first transmission wheel (104);

the unlocking rod (103) is arranged in the shell (1) in a penetrating way and is abutted with the first driving wheel (104);

the first driving wheel (104) has a first position and a second position, and can move between the first position and the second position under the pushing of the unlocking rod (103), the first driving wheel (104) is meshed with the second driving wheel (105) when in the first position, and is separated from the second driving wheel (105) when in the second position.

2. The side door ejection mechanism of claim 1, wherein an elastic assembly (109) is disposed in the housing (1), one end of the elastic assembly (109) is abutted to the housing (1), and the other end is abutted to the first driving wheel (104).

3. The side door ejection mechanism of claim 1, wherein the first driving wheel (104) comprises a turbine section (107) and a gear section (108), the motor (6) is provided with a worm (106), the turbine section (107) is connected with the worm (106), and the gear section (108) is meshed with the second driving wheel (105).

4. The side door ejection mechanism of claim 2, wherein the elastic assembly (109) includes an end cap (202) and an elastic element (201), the end cap (202) being interposed on the housing (1) and on the first transmission wheel (104), the elastic element (201) being disposed between the end caps (202).

5. The ejection mechanism of an automobile side door according to claim 4, wherein a fixed shaft (205) is arranged in the housing (1), and the unlocking lever (103), the first driving wheel (104) and the elastic component (109) are all arranged on the fixed shaft (205) in a penetrating manner.

6. The side door ejection mechanism of claim 1, wherein the unlocking lever (103) is formed with a limiting portion (206), and the limiting portion (206) is abutted between the first driving wheel (104) and the housing (1).

7. The automobile side door ejection mechanism according to claim 1, wherein the second driving wheel (105) comprises an external gear (203) and an internal gear (204), the internal gear (204) is embedded and injection molded in the external gear (203), a spline (207) is arranged on the internal gear (204), and the driving unit (101) is connected with the spline (207).

8. The ejection mechanism of an automobile side door according to claim 7, wherein the outer gear (203) is made of plastic material, and the inner gear (204) is made of metal material.

9. The side door ejection mechanism of claim 1, wherein a control board (208) is provided at the bottom of the motor (6), and the control board (208) transmits a quantitative signal every time the motor (6) rotates one turn.

10. The side door ejection mechanism of claim 1, wherein a control board (208) and a plug pin seat (209) are arranged at the bottom of the motor (6), the control board (208) and the plug pin seat (209) are connected through a patch, a rear cover (301) is further arranged on the bottom cover of the motor (6), and a through hole (302) for the plug pin seat (209) to pass through is formed in the rear cover (301).