CN220747983U

CN220747983U - Motor mounting structure of electric opening and closing mechanism of car trunk door

Info

Publication number: CN220747983U
Application number: CN202322192901.2U
Authority: CN
Inventors: 邓超; 龚怀磊
Original assignee: Chongqing Hi Lex Cable System Group Co Ltd
Current assignee: Chongqing Hi Lex Cable System Group Co Ltd
Priority date: 2023-08-15
Filing date: 2023-08-15
Publication date: 2024-04-09
Anticipated expiration: 2033-08-15

Abstract

The utility model provides a motor mounting structure of electronic closing mechanism of car luggage compartment door, includes reducing mechanism casing, motor, the reducing mechanism casing includes left casing, right casing, left side casing, right side casing all are equipped with the cross-section and are semicircular cavity, right side casing folds in opposite directions with left side casing and fixes two semicircular cavities and form reducing mechanism installation cavity, reducing mechanism is worm gear mechanism, and wherein worm wheel and the one end circumference fixed connection of a screw rod, and the screw rod passes through first bearing to be supported in the reducing mechanism casing, the screw rod other end is outwards along reducing mechanism casing axial, and worm wheel meshing and with the screw rod are perpendicular crisscross, integrated into one piece has motor installation department on the left side casing, the axial and the left casing axial of motor installation department are perpendicular, and a motor setting is in motor installation department, motor shaft and worm circumference fixed connection, the extension end of motor installation department sets up the end cover, is equipped with power jack on the end cover, the motor is used for driving the screw rod rotation.

Description

Motor mounting structure of electric opening and closing mechanism of car trunk door

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a motor mounting structure of an electric opening and closing mechanism of a trunk door of a car.

Background

The electric opening and closing mechanism of the car trunk door is widely used, the assembly relation between a motor and a guide mechanism of the electric opening and closing mechanism of the car trunk door is approximately two types, one type is that the motor and the guide mechanism are coaxially arranged, so that the whole electric opening and closing mechanism has long axial dimension and increased volume, is only suitable for large-sized cars, is not suitable for middle-sized and small-sized cars, and is not beneficial to popularization of the mechanism; the other type is that the motor and the guide mechanism are arranged in parallel, so that the arrangement structure is complex, two or more stages of reduction mechanisms are required to be arranged to transmit the reduction power of the motor to the guide mechanism, the mechanism is increased in size, more parts are needed, and the assembly is difficult. Therefore, how to shorten the axial length of the electric opening and closing mechanism of the car trunk door, reduce the number of parts, reduce the volume, simplify the assembly process and become the focus of research of people.

Disclosure of Invention

The utility model aims at solving the problems in the prior art and provides a motor mounting structure of an electric opening and closing mechanism of a trunk door of a car, which is characterized in that a first-stage speed reducing mechanism, namely a worm gear mechanism is arranged to transmit the power of a motor to a guide part of the electric opening and closing mechanism, so that the speed reducing mechanism is simplified, the number of parts is reduced, and the mechanism is lighter; meanwhile, the worm wheel is connected with the screw rod, the worm is connected with the motor, the worm and gear mechanism combination converts vertical motion into horizontal motion, so that the motor and the guide mechanism are vertically arranged, the volume of the electric opening and closing mechanism of the trunk door of the car is reduced, the electric opening and closing mechanism is suitable for large, medium and small cars, and the popularization of the mechanism is facilitated.

The purpose of the utility model is realized in the following way:

The inner walls of the left shell and the right shell are respectively provided with a mounting groove for mounting the worm wheel, the two mounting grooves are symmetrical, a mounting cavity for mounting the worm is arranged in the mounting groove of the left shell, the mounting cavity is communicated with the inner cavity of the motor mounting part, and one side of the worm exposes the mounting cavity and is meshed with the worm wheel.

The upper end of the worm is supported in the mounting cavity through a second bearing, and the lower end of the worm is supported in the motor mounting part through a third bearing and fixedly connected with the motor shaft.

The outer wall of the screw is provided with a spline shaft, and the screw is matched with a spline hole in the center of the worm wheel through the spline shaft.

The inner walls of the tail ends of the left shell and the right shell are respectively provided with an axial limiting groove used for installing a fixed end connector, the two axial limiting grooves are symmetrical, an axial positioning flange is integrally formed on the fixed end connector, the fixed end connector is matched with the axial limiting grooves through the axial positioning flange, and the fixed end connector is used for connecting a car body or a luggage compartment door.

The outer walls of the head ends of the left shell and the right shell are respectively provided with a spiral groove, and the spiral grooves are used for installing the tension springs.

The combined surface of the left shell and the right shell is provided with a pin, the other shell is provided with a pin hole, the positions of the pin and the pin hole are symmetrical, and the left shell and the right shell are fixedly connected through screws after being folded in opposite directions.

The outer walls of the worm wheel parts arranged on the left shell and the right shell are respectively provided with reinforcing ribs parallel to the shells.

The end cover is inserted into the extending end of the motor installation part and is in clamping fit with the clamping groove on the wall of the motor installation part through the elastic limiting clamp arranged on the wall of the end cover.

The contact surfaces of the left shell and the right shell which are folded and fixed in opposite directions are parallel to the axis of the screw rod.

By adopting the scheme, the motor mounting structure of the electric opening and closing mechanism of the car trunk door comprises a speed reducing mechanism shell and a motor, wherein the speed reducing mechanism shell comprises a left shell body and a right shell body, the left shell body and the right shell body are respectively provided with a concave cavity with a semicircular section, the right shell body and the left shell body are oppositely folded and fixed to form a speed reducing mechanism mounting cavity, the installation of internal parts is convenient, the assembly efficiency is improved, the speed reducing mechanism is a worm gear mechanism, the worm gear is fixedly connected with one end of a screw in the circumferential direction, the screw is supported in the speed reducing mechanism shell body through a first bearing, the other end of the screw extends outwards along the axial direction of the speed reducing mechanism shell body, the worm is meshed with the worm gear and is vertically staggered with the screw, a motor mounting part is integrally formed on the left shell body, the axial direction of the motor mounting part is vertical to the left shell body, a motor shaft is fixedly connected with the circumferential direction of the worm, an end cover is arranged at the extending end of the motor mounting part, a power jack is arranged on the motor, the motor is used for driving the screw to rotate, and the worm mechanism is simple in structure, and only one-stage speed reducing mechanism can transmit power to the motor from the motor to the screw, and the worm gear is horizontally arranged to the screw and is not suitable for the car trunk door.

According to the motor mounting structure of the electric opening and closing mechanism of the car trunk door, the speed reducing mechanism is a worm gear mechanism, so that the speed reducing mechanism is simplified, the number of parts is reduced, the motor is perpendicular to the guide part, the size of the electric opening and closing mechanism of the car trunk door is reduced, the economy is improved, the adaptability of the mechanism is enhanced, and the popularization of the mechanism is facilitated.

The utility model is further described below with reference to the drawings and detailed description.

Drawings

Fig. 1 is an exploded view of a motor mounting structure of an electric opening and closing mechanism for a trunk door of a car according to the present utility model.

Fig. 2 is a schematic structural view of the left housing and the motor mounting part of the present utility model.

Fig. 3 is a cross-sectional view of the reduction mechanism housing of the present utility model.

Reference numerals illustrate: the device comprises a left shell 1, a mounting cavity 1-1, clamping grooves 1-9, reinforcing ribs 1-10, a right shell 2, a first bearing 3-1, a second bearing 3-2, a third bearing 3-3, a fixed end connector 4, a motor mounting part 5, a motor 6, an end cover 7, a worm wheel 8, a worm 9, a speed reducing mechanism mounting cavity 10, a power jack 11, a spring plate 12, a screw 13, a shaft positioning flange 14, a threaded blind hole 15, a threaded through hole 16, a flexible limiting clip 17, a spiral groove 18, an axial limiting groove 19, a mounting groove 20, a spline shaft 21 and a spline hole 22.

Detailed Description

Referring to fig. 1 to 3, a motor mounting structure of an electric opening and closing mechanism of a trunk door of a car comprises a speed reducing mechanism shell and a motor 6, wherein the speed reducing mechanism shell comprises a left shell 1 and a right shell 2, the left shell 1 and the right shell 2 are respectively provided with a concave cavity with a semicircular section, the right shell 2 and the left shell 1 are oppositely folded and fixed, the two semicircular concave cavities form a speed reducing mechanism mounting cavity 10, the shells are integrally formed, the mounting of parts such as the speed reducing mechanism is facilitated, the speed reducing mechanism is mounted and fixed only by one process, and the assembly efficiency is improved. The speed reducing mechanism is a worm and gear mechanism, wherein the worm wheel 8 is fixedly connected with one end of a screw rod 13 in the circumferential direction, in the embodiment, a spline shaft 21 is arranged on the outer wall of the screw rod 13, and the screw rod 13 is matched with a spline hole 22 in the center of the worm wheel 8 through the spline shaft 21. The screw 13 is supported in the reducing mechanism shell through the first bearing 3-1, the other end of the screw 13 extends outwards along the axial direction of the reducing mechanism shell, the worm 9 is meshed with the worm wheel 8 and is vertically staggered with the screw 13, the left shell 1 is integrally formed with the motor mounting part 5, the axial direction of the motor mounting part 5 is vertical to the axial direction of the left shell 1, a motor 6 is arranged in the motor mounting part 5, the shaft of the motor 6 is fixedly connected with the worm 9 in the circumferential direction, the motor 6 is used for driving the screw 13 to rotate, the worm and gear mechanism is simple in structure, power can be transmitted from the motor 6 to the screw 13 only through one-stage reduction, the power is changed into horizontal from vertical, and the motor 6 and the screw 13 are vertically staggered, so that the volume of the electric opening and closing mechanism of the trunk door of the car is reduced, the electric opening and closing mechanism is not only suitable for large cars, but also suitable for medium and small cars, and is convenient for popularization of the mechanism; the speed reducing mechanism shell is parallel to the guide mechanism where the screw 13 is located, and meanwhile the axial bearing capacity of the guide mechanism is improved. The contact surfaces of the left shell 1 and the right shell 2 which are folded and fixed in opposite directions are parallel to the axis of the screw 13. The extension end of motor installation department 5 sets up end cover 7, is equipped with power jack 11 on the end cover 7, in this embodiment, in the end cover 7 inserts the extension end of motor installation department 5, through the elasticity limit clip 17 that sets up on the end cover 7 wall with the draw-in groove 1-9 joint cooperation on the motor installation department 5 wall, other cooperation modes also belong to the scope of this patent protection.

In this embodiment, the inner walls of the left casing 1 and the right casing 2 are respectively provided with a mounting groove 20 for mounting the worm wheel 8, the two mounting grooves 20 are symmetrical, the two mounting grooves 20 are opposite and folded to form a mounting cavity of the worm wheel 8 for limiting and fixing the worm wheel 8 axially, and the two mounting grooves 20 integrally formed on the inner walls of the two casings reduce the connecting structure between the motor mounting part 5 and the guiding mechanism, reduce the number of parts, and improve the economy and the assembly efficiency. One side of the worm wheel 8 is provided with a spring piece 12, a mounting cavity 1-1 for mounting the worm 9 is arranged in a mounting groove 20 of the left shell 1, the mounting cavity 1-1 is communicated with an inner cavity of the motor mounting part 5, and one side of the worm 9 is exposed out of the mounting cavity 1-1 and meshed with the worm wheel 8. In this embodiment, the upper end of the worm 9 is supported in the installation cavity 1-1 through the second bearing 3-2, the lower end is supported in the motor installation part 5 through the third bearing 3-3, and is fixedly connected with the motor 6, and when the assembly is performed, the second bearing 3-2, the worm 9, the third bearing 3-3 and the motor 6 are sequentially installed in the motor installation part 5, and the end cover 7 is connected with the motor installation part 5.

In this embodiment, the inner walls of the tail ends of the left shell 1 and the right shell 2 are respectively provided with an axial limiting groove 19 for installing the fixed end connector 4, the two axial limiting grooves 19 are symmetrical, the fixed end connector 4 is integrally formed with an axial positioning flange 14, the fixed end connector 4 is matched with the axial limiting grooves 19 through the axial positioning flange 14, the two axial limiting grooves 19 are the installation cavity of the axial positioning flange 14 of the fixed end connector 4 after being folded in opposite directions, the axial limiting grooves 19 are used for axially limiting the fixed end connector 4, and the fixed end connector 4 is used for connecting a vehicle body or a luggage compartment door, so that the adaptability of the mechanism is improved.

In this embodiment, on the faying surface of the left casing 1, right casing 2, one of them casing is provided with the pin, and another casing is provided with the pinhole, the position symmetry of pin and pinhole, the left casing 1, right casing 2 pass through screw fixed connection after folding in opposite directions, be threaded blind hole 15 on the left casing 1, be threaded through hole 16 on the right casing 2, the screw passes threaded through hole 16 and is connected with threaded blind hole 15, fixes two casings.

In this embodiment, the outer walls of the head ends of the left casing 1 and the right casing 2 are respectively provided with a spiral groove 18, the spiral grooves 18 are used for installing an extension spring, the two spiral grooves 18 are folded in opposite directions to form a complete spiral groove 18, the extension spring is screwed into the spiral groove 18 and fixedly connected with the two casings, the spiral grooves 18 integrally formed on the outer walls of the two casings reduce the connection structure between the motor installation part 5 and the extension spring, the number of parts is reduced, and the economy and the assembly efficiency are improved. In this embodiment, the outer walls of the parts of the left casing 1 and the right casing 2 where the worm wheel 8 is mounted are respectively provided with reinforcing ribs 1-10 parallel to the casings, so as to improve the stability and the axial bearing capacity of the mechanism.

Claims

1. The utility model provides a motor mounting structure of electronic closing mechanism of car luggage door, includes reducing mechanism casing, motor (6), its characterized in that: the speed reducing mechanism housing comprises a left housing (1) and a right housing (2), wherein the left housing (1) and the right housing (2) are respectively provided with a concave cavity with a semicircular section, the right housing (2) and the left housing (1) are oppositely folded and fixed to enable the two semicircular concave cavities to form a speed reducing mechanism mounting cavity (10), the speed reducing mechanism is a worm gear mechanism, a worm wheel (8) is fixedly connected with one end of a screw rod (13) in the circumferential direction, the screw rod (13) is supported in the speed reducing mechanism housing through a first bearing (3-1), the other end of the screw rod (13) extends outwards along the axial direction of the speed reducing mechanism housing, a worm (9) is meshed with a worm wheel (8) and is vertically staggered with the screw rod (13), a motor mounting part (5) is integrally formed in the left housing (1), a motor (6) is arranged in the motor mounting part (5), a motor (6) shaft is fixedly connected with the worm (9) in the circumferential direction, an end cover (7) is arranged at the extending end of the motor mounting part (5), and the end cover (7) is provided with a power supply jack (11) for driving the screw rod (13).

2. The motor mounting structure of an electric opening and closing mechanism for a trunk door of a car according to claim 1, characterized in that: the inner walls of the left shell (1) and the right shell (2) are respectively provided with a mounting groove (20) for mounting the worm wheel (8), the two mounting grooves (20) are symmetrical, a mounting cavity (1-1) for mounting the worm (9) is arranged in the mounting groove (20) of the left shell (1), the mounting cavity (1-1) is communicated with the inner cavity of the motor mounting part (5), and one side of the worm (9) is exposed out of the mounting cavity (1-1) and meshed with the worm wheel (8).

3. The motor mounting structure of the electric opening and closing mechanism for a trunk door of a car according to claim 2, characterized in that: the upper end of the worm (9) is supported in the mounting cavity (1-1) through the second bearing (3-2), and the lower end of the worm is supported in the motor mounting part (5) through the third bearing (3-3) and is fixedly connected with the motor (6) through a shaft.

4. The motor mounting structure of an electric opening and closing mechanism for a trunk door of a car according to claim 1, characterized in that: the outer wall of the screw rod (13) is provided with a spline shaft (21), and the screw rod (13) is matched with a spline hole (22) in the center of the worm wheel (8) through the spline shaft (21).

5. The motor mounting structure of an electric opening and closing mechanism for a trunk door of a car according to claim 1, characterized in that: the inner walls of the tail ends of the left shell (1) and the right shell (2) are respectively provided with an axial limiting groove (19) for installing a fixed end connector (4), the two axial limiting grooves (19) are symmetrical, an axial positioning flange (14) is integrally formed on the fixed end connector (4), the fixed end connector (4) is matched with the axial limiting grooves (19) through the axial positioning flange (14), and the fixed end connector (4) is used for connecting a car body or a luggage compartment door.

6. The motor mounting structure of an electric opening and closing mechanism for a trunk door of a car according to claim 1, characterized in that: the outer walls of the head ends of the left shell (1) and the right shell (2) are respectively provided with a spiral groove (18), and the spiral grooves (18) are used for installing tension springs.

7. The motor mounting structure of an electric opening and closing mechanism for a trunk door of a car according to claim 1, characterized in that: the combined surface of the left shell (1) and the right shell (2) is provided with a pin, the other shell is provided with a pin hole, the positions of the pin and the pin hole are symmetrical, and the left shell (1) and the right shell (2) are fixedly connected through screws after being folded in opposite directions.

8. The motor mounting structure of an electric opening and closing mechanism for a trunk door of a car according to claim 1, characterized in that: reinforcing ribs (1-10) parallel to the shells are respectively arranged on the outer walls of the parts, on which the worm wheel (8) is arranged, of the left shell (1) and the right shell (2).

9. The motor mounting structure of an electric opening and closing mechanism for a trunk door of a car according to claim 1, characterized in that: the end cover (7) is inserted into the extending end of the motor installation part (5), and is in clamping fit with the clamping grooves (1-9) on the wall of the motor installation part (5) through elastic limiting clamps (17) arranged on the wall of the end cover (7).

10. The motor mounting structure of an electric opening and closing mechanism for a trunk door of a car according to claim 1, characterized in that: the contact surfaces of the left shell (1) and the right shell (2) which are folded and fixed in opposite directions are parallel to the axis of the screw (13).