CN214699000U

CN214699000U - Automobile window-swinging motor speed reducer assembly

Info

Publication number: CN214699000U
Application number: CN202121054622.4U
Authority: CN
Inventors: 朱敏君; 陆凤兰
Original assignee: Ningbo Xinxin Electrical Technology Co ltd
Current assignee: Ningbo Xinxin Electrical Technology Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-11-12
Anticipated expiration: 2031-05-17

Abstract

The patent of the utility model discloses a car window motor gear box subassembly that shakes, including reducing gear box and worm wheel. The reduction box is provided with an installation cavity. The bottom of the installation cavity is in a cone frustum shape. The worm wheel is assembled in the mounting cavity through a connecting shaft. One surface of the worm wheel facing the cavity bottom is a concave surface matched with the cavity bottom; and an oil storage tank is arranged at the joint of the connecting shaft and the worm wheel. The utility model provides a car window motor reducer case subassembly can reduce the dead weight of reducing gear box and worm wheel to a great extent, and then the material saving cost, and can improve the steadiness of connecting between connecting axle and the reducing gear box, and then ensure that the worm wheel can stably rotate, and the worm wheel is rotating the in-process, can effectively reduce the produced abnormal sound noise between its and the connecting axle for whole smooth and easy operation.

Description

Automobile window-swinging motor speed reducer assembly

Technical Field

The utility model relates to a car window technical field indicates a car window motor gear box subassembly especially.

Background

The automobile window-swinging motor is a power driving element of an electric window, the electric window brings great convenience to a driver and passengers, opening and closing of window glass can be realized only by operating a switch button, the operation is simple, the efficiency is high, and the driving safety is improved.

The reduction box mechanism component is an important component in the automobile window-swinging motor, but in the prior art, the reduction box mechanism of the window-swinging motor is formed by matching a cylindrical cavity of a reduction box and a cylinder of a worm wheel, and has the advantages of more materials, heavy weight, low strength and high cost; and the metal axle of moulding plastics on the reducing gear box all does not set up the oil storage slot, produces dirt after the window motor uses a period easily and makes a sound with abnormal sound to influence driver and passenger's comfort. And the connection strength of the cylindrical reduction box and the metal shaft is low, and after the window-swinging motor is used for a period of time, the possibility of damage of the speed reducing mechanism exists, so that the lifting fault of the window glass of the automobile is caused.

Therefore, how to quickly and effectively solve a series of defects in the prior art, such as heavy weight, high cost, low strength, and easy production of abnormal sound in use, is a problem to be solved by those of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a car window motor reducer case subassembly can reduce the dead weight of reducing gear box and worm wheel to a great extent, and then practices thrift manufacturing cost, and can improve the steadiness of connecting between connecting axle and the reducing gear box, and then ensures that the worm wheel can stably rotate, and the worm wheel is rotating the in-process, can effectively reduce the abnormal sound noise that produces between its and the connecting axle for whole smooth and easy operation.

The utility model provides a technical scheme as follows: an automobile window motor reducer assembly comprising:

the reduction box is provided with an installation cavity;

the bottom of the installation cavity is in a cone frustum shape;

the worm wheel is assembled in the mounting cavity through a connecting shaft;

one surface of the worm wheel facing the cavity bottom is a concave surface matched with the cavity bottom; and

the connecting shaft is provided with an oil storage tank at the joint with the worm wheel.

In the patent, the worm wheel is assembled in the mounting cavity through a connecting shaft, so that the worm wheel can freely rotate in the mounting cavity; the cavity bottom of the mounting cavity is in a cone frustum shape, and a concave surface matched with the cavity bottom is arranged on one surface of the worm wheel facing the cavity bottom, so that the dead weight of the reduction gearbox and the worm wheel can be reduced to a great extent, the material cost can be effectively saved, and the worm wheel can rotate more stably due to the conical concave-convex structure; the oil storage tank is arranged at the joint of the connecting shaft and the worm wheel and used for storing sufficient lubricating oil or grease, so that the worm wheel can smoothly rotate along the connecting shaft, abnormal noise cannot occur due to dry rotation, and the comfort of a driver and passengers is further improved.

Further preferably, the connecting shaft is fixedly arranged at the center of the cavity bottom of the reduction gearbox; and

a connecting hole penetrating through the thickness of the worm wheel is formed in the center of the worm wheel and used for inserting the connecting shaft;

wherein, clearance fit is adopted between the connecting hole and the connecting shaft.

Further preferably, the oil storage tank is arranged at a position of the connecting shaft corresponding to the connecting hole;

the oil storage tank is of a circular groove structure and is arranged along the circumference of the connecting shaft.

Further preferably, a concave cavity matched with the contour of the cavity bottom is formed on one side, back to the mounting cavity, of the reduction gearbox; and a reinforcing rib is arranged in the concave cavity.

Further preferably, in the forming process of the reduction gearbox, the connecting shaft is embedded in the cavity bottom of the mounting cavity so as to be integrally injection-molded with the reduction gearbox.

Further preferably, the reduction box is made of a plastic material; and the connecting shaft is made of metal material.

Further preferably, the edge of the reduction box is also provided with a motor mounting part;

the motor mounting part is hollow and communicated with the mounting cavity;

the motor mounting part is internally provided with a worm which is in driving connection with the motor; when the worm wheel is assembled in the mounting cavity, the worm is meshed with the edge of the worm wheel; under the drive of the motor, the worm drives the worm wheel to rotate.

The technical effects of the utility model reside in that:

1. in the patent, the worm wheel is assembled in the mounting cavity through a connecting shaft, so that the worm wheel can freely rotate in the mounting cavity; the chamber end of installation cavity is the circular truncated cone form, and with the worm wheel towards the one side setting at the chamber end be with the concave surface of chamber end looks adaptation, so can reduce the dead weight of reducing gear box and worm wheel at to a great extent, can effectively material saving cost, and this toper concave-convex structure can make the worm wheel rotate ground more steadily.

2. In this patent, be equipped with one oil storage tank through the junction at connecting axle and worm wheel for store the lubricating oil or the grease of capacity, smoothly rotate along the connecting axle with ensureing that the worm wheel can, can not take place the abnormal sound noise because of the dry rotation, and then improve driver and passenger's comfort.

3. In this patent, one side that the reducing gear box is back to the installation cavity forms one and the cavity of the profile looks adaptation at the bottom of the chamber, so, can further reduce the dead weight of reducing gear box, can effectively practice thrift manufacturing cost.

4. In this patent, through set up the strengthening rib in the cavity, can strengthen the intensity of reducing gear box.

Drawings

The invention will be described in further detail with reference to the following drawings and embodiments:

FIG. 1 is a three-dimensional exploded view of the reduction box and the worm wheel of the product of the present invention in a front state;

FIG. 2 is a perspective exploded view of the reduction box and the worm wheel of the product of the present invention in a back state;

fig. 3 is a schematic view of the assembled three-dimensional structure of the reduction gearbox and the worm wheel of the product of the present invention.

The reference numbers illustrate:

100. a reduction gearbox; 110. a mounting cavity; 111. a cavity bottom; 120. a motor mounting portion; 130. a concave cavity; 131. reinforcing ribs; 1311. a support post; 1312. ribs; 200. a worm gear; 210. a concave surface; 220. connecting holes; 300. a connecting shaft; 310. and an oil storage tank.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

According to a specific embodiment provided by the present invention, as shown in fig. 1 to 3, an automobile window motor reduction box assembly comprises a reduction box 100 and a worm gear 200. The reduction gearbox 100 is provided with a mounting cavity 110. The bottom 111 of the mounting cavity 110 is in the shape of a truncated cone. The worm wheel 200 is assembled in the mounting chamber 110 by a coupling shaft 300. The side of the worm wheel 200 facing the cavity bottom 111 is a concave surface 210 matched with the cavity bottom 111; and the connection shaft 300 is provided with an oil reservoir 310 at the connection with the worm wheel 200.

In this embodiment, the worm wheel 200 is assembled in the mounting cavity 110 through a connecting shaft 300, so that the worm wheel can freely rotate in the mounting cavity 110. The contour of the mounting cavity 110 is matched with the worm wheel 200, and the caliber of the mounting cavity 110 should be slightly larger than the diameter of the worm wheel 200, so that the worm wheel 200 can rotate in the mounting cavity 110 more smoothly, but the specific size can be specifically set according to the actual application scene. Furthermore, the cavity bottom 111 of the installation cavity 110 is in a cone frustum shape, and the surface of the worm wheel 200 facing the cavity bottom 111 is provided with the concave surface 210 matched with the cavity bottom 111, so that the dead weights of the reduction gearbox 100 and the worm wheel 200 can be reduced to a great extent, the material cost is effectively saved, and the conical concave-convex design has the advantages of attractive appearance, small weight, low noise, small vibration and the like.

In this embodiment, an oil storage tank 310 is disposed at a connection position of the connection shaft 300 corresponding to the worm wheel 200, and is used for storing sufficient lubricating oil or grease, so as to ensure that the worm wheel 200 can smoothly rotate along the connection shaft 300, and noise caused by dry rotation is not generated, thereby improving comfort of a driver and passengers.

Specifically, referring to fig. 1 and 2, the connecting shaft 300 is fixedly installed at the center of the cavity bottom 111 of the reduction box 100 for receiving the worm gear 200; correspondingly, a connecting hole 220 penetrating through the thickness of the worm wheel 200 is formed in the center of the worm wheel for inserting the connecting shaft 300; wherein, clearance fit is provided between the connection hole 220 and the connection shaft 300, so that the worm wheel 200 can freely rotate relative to the connection shaft 300 without being hindered. Further, in order to effectively improve a series of defects such as abrasion and abnormal noise generation caused by dry friction between the worm wheel 200 and the connecting shaft 300, the oil storage groove 310 may be opened at a position of the connecting shaft 300 corresponding to the connecting hole 220, and the oil storage groove 310 is used for lubricating a region where the connecting hole 220 and the connecting shaft 300 are in contact with each other in a rotation process of the worm wheel 200, so that the worm wheel 200 rotates more smoothly, and abnormal noise is prevented from occurring in the rotation process of the worm wheel 200. In a preferred example, referring to fig. 1, the oil reservoir 310 has a ring-shaped groove structure and is formed along the circumference of the connecting shaft 300. In this way, the oil reservoir 310 can uniformly apply the lubricating oil or grease to the connecting hole 220 during the rotation of the worm wheel 200.

Further, in this embodiment, referring to fig. 2, a cavity 130 adapted to the contour of the cavity bottom 111 is formed on a side of the reduction gearbox 100 facing away from the mounting cavity 110, that is, during the injection molding of the reduction gearbox 100, the cavity 130 forms a truncated cone-shaped contour of the cavity bottom 111 during the process of sinking toward the mounting cavity 110. Therefore, the dead weight of the reduction gearbox 100 can be greatly reduced, and the material cost is effectively saved; correspondingly, the concave surface 210 also enables the worm gear 200 to be lighter in weight, saving material costs of the worm gear 200. In order to strengthen the stability of the connection between the cavity bottom 111 of the mounting cavity 110 and the connecting shaft 300, a reinforcing rib 131 may be disposed in the cavity 130, and the reinforcing rib 131 is used to strengthen the matching strength of the cavity bottom 111, the connecting shaft 300 and the worm wheel 200. The specific structure and profile of the reinforcing rib 131 are not limited, and may be flexibly set according to an actual use scenario. As a preferred example, referring to fig. 2, the stiffener 131 may include a receiving post 1311 and a plurality of ribs 1312. A receiving post 1311 is provided at the center of the cavity 130, and a plurality of ribs 1312 are provided at intervals along the circumferential side of the receiving post 1311. Wherein each rib 1312 is connected to the edge of the receiving column 1311 and the cavity 130, respectively, to enhance the stability of the reduction box 100. More preferably, each rib 1312 is also connected to the skin of the cavity 130, so as to provide a better anchoring effect. It should be noted that the number of ribs 1312 is not limited, and may be specifically set according to the actual application scenario, and in the present application, the number of ribs 1312 is eight, but is not limited thereto.

In this embodiment, referring to fig. 1 to 3, a motor mounting portion 120 is further disposed at an edge of the reduction box 100 for assembling the motor. Specifically, the motor mounting portion 120 is hollow inside and communicates with the mounting cavity 110. The motor mounting portion 120 has an opening at which the motor is assembled, and a driving shaft of the motor extends to the inside. Further, a worm is provided in the motor mounting portion 120, and the worm is drivingly connected to a driving shaft of the motor. When the worm wheel 200 is assembled in the mounting cavity 110 of the reduction box 100, the worm is engaged with the edge of the worm wheel 200, so that the worm can drive the worm wheel 200 to rotate under the driving of the motor.

Further, this application still includes a set of dress in reducing gear box 100, in order to be used for the lid of waterproof dustproof noise insulation, adds the lid and still can reduce the potential safety hazard, avoids artificial mistake to touch worm wheel 200 so as to cause the damage.

Further, the present application further includes a clamp spring assembled on the connecting shaft 300, for limiting the worm wheel 200 in the installation cavity 110 of the reduction box 100, so that the worm wheel 200 does not move on the connecting shaft 300.

In this application, in order to further reduce the dead weight of the reduction gearbox 100 and reduce the production cost of the reduction gearbox 100, the reduction gearbox 100 may be preferably made of a plastic material. And in order to further improve the fitting strength of the connecting shaft 300 and the worm wheel 200, the connecting shaft 300 may be preferably made of a metal material. In the forming process of the reduction gearbox 100, the connecting shaft 300 is embedded in the cavity bottom 111 of the mounting cavity 110 so as to be directly formed with the reduction gearbox 100 in an integrated injection molding mode. Of course, the material of the reduction gearbox 100 and the connecting shaft 300 is not limited thereto, and can be set arbitrarily according to the actual use requirement, and will not be described herein.

Claims

1. The utility model provides a car window motor gear box subassembly, its characterized in that includes:

the reduction box is provided with an installation cavity;

the bottom of the installation cavity is in a cone frustum shape;

the worm wheel is assembled in the mounting cavity through a connecting shaft;

2. The motor reducer assembly of claim 1, wherein,

the connecting shaft is fixedly arranged at the center of the cavity bottom of the reduction gearbox; and

3. The motor reducer assembly of claim 2, wherein,

the oil storage tank is arranged at the position of the connecting shaft corresponding to the connecting hole;

4. The motor reducer assembly of any one of claims 1-3, wherein,

a concave cavity matched with the contour of the cavity bottom is formed on one side of the reduction gearbox, which is back to the mounting cavity; and a reinforcing rib is arranged in the concave cavity.

5. The motor reducer assembly of any one of claims 1-3, wherein,

in the forming process of the reduction gearbox, the connecting shaft is embedded in the cavity bottom of the mounting cavity so as to be integrally injection-molded with the reduction gearbox.

6. The motor reducer assembly of claim 5, wherein,

the reduction gearbox is made of plastic materials; and the connecting shaft is made of metal material.

7. The motor reducer assembly of any one of claims 1-3, wherein,

the edge of the reduction box is also provided with a motor mounting part;

the motor mounting part is hollow and communicated with the mounting cavity;

the motor mounting part is internally provided with a worm which is in driving connection with the motor;

when the worm wheel is assembled in the mounting cavity, the worm is meshed with the edge of the worm wheel; under the drive of the motor, the worm drives the worm wheel to rotate.