CN209896852U

CN209896852U - Mute type car window motor

Info

Publication number: CN209896852U
Application number: CN201920756741.0U
Authority: CN
Inventors: 方阳
Original assignee: NINGBO JINGCHENG MOTOR CO Ltd
Current assignee: NINGBO JINGCHENG MOTOR CO Ltd
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2020-01-03
Anticipated expiration: 2029-05-23

Abstract

The utility model discloses a silent car window motor, which comprises a worm, a turbine component and a motor component, wherein the worm is provided with helical teeth, the turbine assembly comprises an output gear, wherein the turbine assembly is rotatably connected to the worm, wherein the motor assembly comprises a housing, a motor and a brush, wherein the motor comprises a coil holder, a coil winding, a magnet and an output shaft, wherein the coil fixing frame includes a central cylinder, a plurality of connecting arms, and a plurality of circumferential arms, the output shaft is disposed at the center of the central cylinder, the magnet and the motor are disposed in the housing, wherein the turbine assembly is drivingly connected to the helical teeth, wherein a plane in which each of the connecting arms lies forms a predetermined angle with the axis of the output shaft.

Description

Mute type car window motor

Technical Field

The utility model relates to a motor field especially relates to a hush air window motor.

Background

The window motor is mainly used for driving the window of the vehicle to lift. Since the outside noise can seriously reduce the riding experience of the passengers in the vehicle when the vehicle runs, many drivers choose to close the windows of the vehicle when driving the vehicle, so as to reduce the noise. However, the window motor driving the window of the vehicle to ascend and descend in the prior art generates noise at intervals during operation due to the structural limitation of the window motor.

Existing window motors include a motor assembly, a worm, and a worm gear assembly, wherein the worm is drivably connected to the motor assembly to enable rotation of the worm. The turbine assembly is connected to the worm in a transmission mode so as to be driven by the worm to correspondingly output power for driving the vehicle window to ascend and descend.

The motor assembly comprises a coil fixing frame, a coil winding, a commutator and a magnet. The coil winding is wound around the coil holder in a predetermined manner, wherein the magnet is held on both sides of the coil winding so that the coil winding is held in a magnetic field, and at least a portion of the coil winding cuts a magnetic induction line formed by the magnet when the coil winding rotates, wherein the coil winding is electrically connected to the commutator.

As shown in fig. 1, the coil fixing frame in the prior art includes a central cylinder a, a plurality of radial arms B extending outward from an outer wall of the central cylinder, and a circumferential arm C disposed at an outer end of the radial arms B. A winding channel is formed between two adjacent radial arms B, and a winding slot is formed between two adjacent circumferential arms C. The coil windings are wound around the radial arm B and the circumferential arm C. And fills the winding channels and the winding slots. However, in the prior art, the plane where the radial arm B is located and the axis of the central cylinder a are on the same plane, and the side edges of the circumferential arm C are respectively collinear with the axis of the central cylinder a, so that the coil holder is continuously rotated due to the force applied to the coil holder in the circumferential direction during the rotation of the coil holder. However, since the plane of the radial arm B is on the same plane as the axis of the central column a, and the side edges of the circumferential arms C are respectively collinear with the axis of the central column a, at least two of the circumferential arms C may suddenly rotate at an accelerated speed when a critical point is reached, so that the circumferential arms C may generate resistance in the rotating process, and further may generate noise. On the other hand, since the circumferential arm C suddenly rotates at an increased speed, the window driven by the window motor is accelerated up or accelerated down, and thus the transportation of the window is not smooth.

Disclosure of Invention

An object of the utility model is to provide a hush air window motor, wherein hush air window motor can not produce the noise at the during operation.

Another object of the present invention is to provide a silent window motor, wherein the silent window motor can smoothly drive the window of a vehicle to ascend or descend.

Another object of the utility model is to provide a mute type door window motor, wherein door window motor's cost is lower, the manufacturing of being convenient for.

According to the utility model discloses an embodiment, a hush air window motor, wherein hush air window motor includes:

the worm is provided with spiral teeth;

a worm gear assembly, wherein the worm gear assembly comprises an output gear, wherein the worm gear assembly is rotatably connected to the worm to drive the output gear to rotate; and

a motor assembly, wherein the motor assembly comprises a housing, a motor and a circuit assembly, wherein the motor comprises a coil holder, a coil winding, a magnet and an output shaft, wherein the coil holder comprises a central cylinder, a plurality of connecting arms and a plurality of circumferential arms, one side of each of the connecting arms is fixed to an outer wall of the central cylinder, the other side of each of the connecting arms is fixed to one of the circumferential arms, wherein a coil receiving groove is formed between adjacent two of the connecting arms, wherein the coil winding is wound around the coil holder and is partially held in the coil receiving groove, the output shaft is disposed at the center of the central cylinder, the magnet and the motor are disposed in the housing, and the coil winding is held in a magnetic field formed by the magnet, and the worm is coaxially connected to the output shaft, wherein the circuit component is sleeved on the worm, the turbine component is connected to the spiral teeth in a driving mode, and a preset included angle is formed between the plane where each connecting arm is located and the axis of the output shaft.

According to the utility model discloses an embodiment, coil winding twine in circumference arm with behind the linking arm form a stress zone and a transition district on the circumference arm, wherein the stress zone with the transition district is in stagger each other in the direction of rotation of output shaft.

According to an embodiment of the present invention, the circumference arm has an upper side, a lower side, a left side and a right side, states the circumference arm the left side with adjacent another the circumference arm form a wire winding opening between the right side, wherein the wire winding opening is set up with the coil holding tank intercommunication, wherein the circumference arm the upper side with the lower side respectively with the axial verticality of worm, the circumference arm the left side with the right side set up with the worm form a predetermined angle of inclination between the axial.

According to an embodiment of the invention, the left side edge and the right side edge of the circumferential arm are arranged and the worm forms the predetermined angle of inclination between the axial direction of 5-10 degrees.

According to an embodiment of the present invention, the left side of the circumferential arm and the right side are set and the worm is formed between the axial direction the predetermined angle of inclination is 7 degrees.

According to an embodiment of the present invention, the connecting arms are implemented as eight and are arranged at intervals at the periphery of the central column, and correspondingly, the circumferential arms are also implemented as eight.

According to an embodiment of the present invention, the output shaft and the worm are integrally provided.

According to an embodiment of the present invention, the turbine assembly includes an outer casing and a turbine, wherein the outer casing forms a worm cavity, a turbine cavity and a side cavity, wherein the turbine is drivingly disposed in the turbine cavity, wherein the output gear is disposed in the turbine, wherein the turbine is provided with a transmission gear, wherein the worm is inserted in the worm cavity, and the helical teeth pass through the side cavity and the transmission gear on the turbine are engaged with each other.

Drawings

Fig. 1 is a schematic structural view showing a coil fixing bracket in a window motor of the related art.

Fig. 2 shows a schematic structural diagram of a silent window motor according to the present invention.

Fig. 3 shows an exploded view of the silent window motor according to the present invention.

Fig. 4 shows an exploded view of a motor assembly of the silent window motor of the present invention.

Fig. 5 shows a coil fixing frame perspective view of the motor in the motor assembly of the mute type window motor of the present invention.

Fig. 6 is a perspective view of a coil fixing frame of the motor in the motor assembly of the silent window motor according to an embodiment of the present invention.

Fig. 7 is a perspective view of a coil fixing frame of the motor in the motor assembly of the silent window motor according to another embodiment of the present invention.

Detailed Description

The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.

A silent window motor according to a preferred embodiment of the present invention will be described in detail below with reference to fig. 2 to 7, wherein the silent window motor can be used in various vehicles to drive a window of the vehicle to ascend or descend.

The silent window motor includes a motor assembly 10, a worm 20 and a turbine assembly 30. The worm 20 is drivingly connected to the motor assembly 10 such that the worm 20 is driven to rotate. The turbine assembly 30 is drivingly connected to the worm 20, and is capable of outputting the power output by the worm 20 to the turbine assembly 30.

As will be understood by those skilled in the art, the turbine assembly 30 is provided with a power output gear 301 to output power generated by the motor assembly 10 for driving the window of the vehicle to ascend and descend.

The motor assembly 10 includes a housing 11, a motor 12, and a circuit assembly 13. The motor 12 is mounted to the housing 11. One end of the worm 20 is mounted to the housing 11, and the other end of the worm 20 is provided with helical teeth 21. The circuit assembly 13 is coupled to the worm 20 and fixed to the housing 11. Specifically, the housing 11 defines a receiving chamber 1101 and an opening 1102 communicating with the receiving chamber 1101. The motor 12 is accommodated in the accommodating chamber 1101. One end of the worm 20 is connected to an output shaft 124 of the motor 12. The other end of the worm 20 extends out of the accommodating cavity 1101. The circuit assembly 13 is mounted at the opening 1102 of the housing 11.

The worm gear assembly 30 includes a housing 31 and at least one worm gear 32, wherein the worm gear 32 is disposed on the housing 31 and is drivingly connected to the helical teeth 21 of the worm 20. Specifically, the housing 31 defines a worm cavity 3101, a turbine cavity 3102 and a side cavity 3103. The housing 31 is covered in the opening 1102 of the housing 11 of the motor assembly 10, and the worm 20 extends into the worm cavity 3101 such that the worm 20 is secured to the housing 31. The turbine 32 is mounted to the turbine cavity 3102.

When the worm 20 is disposed in the worm cavity 3101, the spiral teeth 21 of the worm 20 are retained in the side cavity 3103. The side cavity 3103 is disposed in communication with the worm cavity 3101 and the worm gear cavity 3012 such that the helical teeth 21 on the worm 20 can be engaged with the worm gear 32 located in the worm gear cavity 3102 through the side cavity 3103. In particular, the worm gear 32 is provided with drive gear teeth 321 and output gear teeth 322. The helical teeth 21 of the worm 20 are arranged to engage with the gear teeth 321, so that the output gear teeth 322 can rotate when the worm gear 32 is driven to rotate by the worm 20.

In the present invention, the motor 12 includes a coil fixing frame 121, a winding coil 122 and at least one pair of magnets 123. The winding coil 122 is wound around the coil holder 121 in a predetermined winding manner and is electrically connected to the circuit assembly 12. The magnet 123 is attached to the winding coil 122. The output shaft 124 of the motor 12 is disposed to be inserted through the axis of the coil fixing frame 121. The worm 20 is connected to the output shaft 124 of the motor 12.

The coil holder 121 includes a central cylinder 1211, a plurality of connecting arms 1212, and a plurality of circumferential arms 1213. The central cylinder 121 forms an insertion passage for inserting the output shaft 124. One side of each of the connecting arms 1212 is fixed to the outer wall of the central cylinder 1211 and the other side of each of the connecting arms 1212 is fixed to one of the circumferential arms 1213. A coil receiving groove 1214 is formed between two adjacent connecting arms 1212 for receiving the winding coil 122 when the winding coil 122 is wound on the coil fixing frame 121.

In the present invention, a predetermined included angle is formed between the plane where the connecting arm 1212 is located and the axis of the output shaft 124, so that the winding coil 122 is wound around the connecting arm 1212 and the circumferential wall 1213, and the winding coil 122 on the same connecting arm 1212 receives a smooth force along the circumferential direction and does not receive a resistance force.

Specifically, when the plane of the connecting arm 1212 forms a predetermined angle with the axis of the output shaft 124, the winding coil 122 wound around the connecting arm 1212 and the circumferential arm 1213 forms a force-bearing region 12101 and a transition region 12102 in the axial direction. When the coil fixing frame 121 continuously rotates to a critical point, because the force-bearing area 1210 and the transition area 12102 formed by the winding coil 122 on the same connecting arm 1212 and the circumferential arm 1213 are not in the same force-bearing area, the coil fixing frame 121 does not generate instantaneous force when rotating, and therefore, the motor 12 does not generate noise when operating.

That is, in the present invention, by changing the shape of the connecting arm 1212, the noise generated by the motor 12 during the operation can be eliminated.

Further, in the present invention, the projection of the circumferential wall 1213 in the axial direction is implemented as a non-rectangular parallelogram. Specifically, the circumferential arm 1213 has an upper side 121301, a lower side 121302, a left side 121303 and a right side 121304 in the extending direction of the worm 20. The upper side 121301 and the lower side 121302 of the circumferential arm 1213 are perpendicular to the axial direction of the worm 20, respectively. The left side edge 121303 and the right side edge 121304 of the circumferential arm 1213 are arranged to form a predetermined inclination angle with the axial direction of the worm 20, so that, in the present invention, after the winding coil 122 is wound on the circumferential arm 1213, one force-bearing region 12101 and one transition region 12102 can be formed on the same circumferential arm 1213. When each of the circumferential arms 1213 wound with the winding coil 122 is rotated into the magnetic field formed by the magnet 123 and the circumferential arm 1213 is at an extreme position, no noise is generated because the force-bearing region 12101 has replaced the transition region 12102 of another adjacent circumferential arm 1213, so that the motor 12 does not experience resistance when rotated.

It is worth mentioning that, in the present invention, a winding opening 1215 is formed between the left side edge 121303 of the circumferential arm 1213 and the right side edge 121304 of the adjacent circumferential arm 1213, wherein the winding opening 1215 is communicated with the coil receiving groove 1214 for arranging the coil winding 122.

Preferably, in the present invention, the inclination angle between the left side edge 121303 and the right side edge 121304 and the axial direction of the worm 20 is implemented to be 5 to 10 degrees, preferably to be 7 degrees.

It is more worth mentioning that the direction of inclination of each circumferential arm 1213 may be implemented to be inclined to the lower left in the axial direction of the worm 20, as shown in fig. 6, or to be inclined to the lower right in the axial direction of the worm 20, and the present invention is not limited in this respect.

In addition, in the present invention, the connecting arms 1212 are implemented as eight and are arranged at intervals at the periphery of the central cylinder 1211, and accordingly, the circumferential arms 1213 are also implemented as eight.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims

1. A silent window motor, wherein the silent window motor comprises:

the worm is provided with spiral teeth;

2. The silent window motor of claim 1, wherein said coil winding is wound around said circumferential arm and said connecting arm to form a force-bearing zone and a transition zone on said circumferential arm, wherein said force-bearing zone and said transition zone are offset from each other in the direction of rotation of said output shaft.

3. The silent window motor of claim 2, wherein said circumferential arm has an upper side, a lower side, a left side and a right side, said left side of said circumferential arm and said right side of another adjacent circumferential arm form a winding opening therebetween, wherein said winding opening is disposed to communicate with said coil receiving groove, wherein said upper side and said lower side of said circumferential arm are perpendicular to an axial direction of said worm, respectively, and said left side and said right side of said circumferential arm are disposed to form a predetermined inclination angle with said axial direction of said worm.

4. The silent window motor of claim 3, wherein the left and right sides of the circumferential arm are disposed at the predetermined inclination angle of 5-10 degrees from the axial direction of the worm.

5. The silent window motor of claim 4, wherein the left side edge and the right side edge of the circumferential arm are disposed to form the predetermined inclination angle of 7 degrees with the axial direction of the worm.

6. The mute type window motor as claimed in claim 5, wherein the connecting arms are implemented in eight and are arranged at intervals on the circumference of the central cylinder, and accordingly, the circumferential arms are also implemented in eight.

7. The silent window motor of any one of claims 1 to 6, wherein said output shaft and said worm are integrally provided.

8. The silent window motor of claim 7, wherein the turbine assembly comprises an outer housing and a turbine, wherein the outer housing forms a worm cavity, a turbine cavity and a side cavity, wherein the turbine is drivingly disposed in the turbine cavity, wherein the output gear is disposed in the turbine, wherein the turbine is provided with a transmission gear, wherein the worm is inserted into the worm cavity, and the helical teeth are engaged with the transmission gear on the turbine through the side cavity.