CN218438927U

CN218438927U - Noise buffering structure for top impact of glass lifter

Info

Publication number: CN218438927U
Application number: CN202222173364.2U
Authority: CN
Inventors: 唐新宏; 李广
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2023-02-03
Anticipated expiration: 2032-08-17

Abstract

The utility model relates to a simple structure, low cost's glass-frame riser dashes top noise buffer structure is provided with the groove length direction on the slider and is located vertical spout, and the spout constitutes sliding fit with the guide rail, is equipped with the U type draw-in groove that is used for joint door window glass on the slider, and the one side that the slider closes on the guide rail is provided with the buffer block, and when the slider rises to being close to top dead center position, buffer block and guide rail top looks butt. When the sliding block rises to a position close to the top dead center, the buffer block is abutted with the top of the guide rail, so that the rising speed of the glass can be reduced, and because the buffer block has a certain deformation amount, the motor overcomes the elasticity of the buffer block to drive the glass to be contacted with the bottom of the groove at the top end of the upper frame of the vehicle door, so that the impact force of the glass and the top frame of the vehicle door when the glass rises is reduced, and the noise is reduced; the buffer block is arranged on the sliding block, and the sliding block is made of plastic instead of metal, so that the buffer block can be integrally injection-molded with the sliding block when the sliding block is injection-molded, the installation of two pieces is avoided, and the production process is simplified.

Description

Noise buffering structure for top impact of glass lifter

Technical Field

The utility model relates to an automobile glass riser technical field, concretely relates to glass riser dashes top noise buffer structure.

Background

The automobile door glass lifting system is an important component of the whole automobile, has very high use frequency and has very important influence on the overall evaluation of the quality of the whole automobile. A window regulator is a core component of a door window regulator system, and is an operator who performs a lifting function by applying a driving force to a window to freely lift and lower the window as desired by an operator. The lifter slide block structure belongs to a rope wheel type glass lifter. The rope wheel type glass lifter drives a wire wheel in the wire winding mechanism to rotate through a motor (or a hand crank), so that a steel wire rope wound on the wire wheel moves, and the steel wire rope drives a sliding block fixed with glass to move up and down along a lifter guide rail. When the door runs to the upper stop point, the glass props against the upper section of the door to stop the movement; because the car door system needs to consider the lifting drive of various environmental temperatures, the residual force designed by the motor reaches 200-350N, and the traditional glass lifter assembly structure utilizes the impact of glass and the bottom of a trough of an upper frame of a door to achieve larger locked-rotor current so as to stop the motor. At the moment when the window glass is impacted to stop, the buffer capacity of the pure groove is small, the impact energy of the glass to the bottom of the upper frame of the door is very large, the impact sound of the top is large, the window glass needs to be lifted frequently, and the sliding block is prone to cracking due to stress due to frequent impact, so that the service life of the whole lifter is influenced. In order to solve this phenomenon in the existing market, high-end configuration motorcycle type adopts glass-frame riser assembly motor configuration PWM module to realize, when glass rises to the distance of 10mm from door upper ledge top position, motor PWM module passes through position calculation, to the corresponding step-down signal of riser motor output, reduce glass's lifting speed, thereby reduce the impact energy of glass to the top, realize reducing and dash and push up striking sound, but this PWM module product cost is very high, the calibration process is complicated, about 30% of whole glass-frame riser assembly cost has been occupied.

In order to solve the above problem, a utility model patent (hereinafter referred to as document 1) entitled "a noise reduction buffer and a glass lifter guide rail" (grant publication No. CN 211691995U) discloses the following technical solutions: the glass lifter guide rail is provided with a noise reduction buffer, and the noise reduction buffer is arranged at the top of the guide rail; the guide rail is provided with a mounting hole for matching with a fixed noise-reduction buffer, the mounting hole comprises a lifting positioning hole which is matched with an anti-falling limiting block and used for vertical positioning of the noise-reduction buffer and an anti-falling hole which is used for buckling positioning of an anti-falling barb, the lifting positioning hole is arranged on the top surface of the guide rail, and the anti-falling hole is arranged on the side surface of the guide rail. In literature 1, the buffer of making an uproar falls and fixes the top at the guide rail, the slider area door glass that moves along the guide rail rises, when up to the guide rail top, the slider direct action falls on the buffer of making an uproar, the buffer of soft rubber material takes place deformation, the buckle can slide in anticreep T shape downthehole connecting block can be at anticreep T shape downthehole, thereby carry out effectual buffering to glass, glass and the striking dynamics of door top frame when having reduced glass and rising, thereby reduce door top frame deformation, reduce glass and dash a noise, passenger's comfort level has been improved. However, in the document 1, in order to mount and fix the guide rail of the metal part to the noise reduction bumper made of rubber, the guide rail needs to be set to have a relatively complicated structure, that is, including the pulling positioning hole and the anti-dropping hole, the noise reduction bumper is also correspondingly provided with the pulling portion and the compression fixing portion, the structure is also relatively complicated, and the two parts need to be assembled together after being molded separately, which undoubtedly increases the complexity of the process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, low cost's glass-frame riser dashes top noise buffer structure.

In order to realize the purpose, the utility model discloses a technical scheme be: the utility model provides a glass-frame riser dashes top noise buffer structure, includes the slider, is provided with slotted long direction on the slider and is located vertical spout, and the spout constitutes sliding fit with the guide rail, is equipped with the U type draw-in groove that is used for joint window glass on the slider, its characterized in that: one side of the sliding block close to the guide rail is provided with a buffer block, and when the sliding block rises to a position close to the upper dead center, the buffer block is abutted against the top of the guide rail.

In the above-mentioned scheme, when the slider rises to being close top dead center position, buffer block and guide rail top looks butt, glass still not contact with door upper ledge top slot tank bottom this moment, consequently can reduce glass's rising speed, because the buffer block has certain deformation volume, the elasticity that the motor overcome the buffer block orders about glass and door upper ledge top slot tank bottom contact, has reduced glass and the striking dynamics of door top frame when rising, noise abatement. Compared with the document 1, the utility model discloses set up the buffer block on the slider, because the material of slider is not metal but plastics, consequently the buffer block can be when the slider is moulded plastics with the integrative injection moulding of slider, has avoided the installation of two pieces, simplifies production technology.

Drawings

FIG. 1 is a schematic view of the overall structure of a window regulator;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 3;

fig. 5 is a perspective view of the slider.

Detailed Description

As shown in fig. 1 to 5, a noise buffering structure for top impact of a window regulator comprises a slider 10, wherein a chute 11 is formed in the slider 10, the chute 11 is vertically located in the length direction of the chute, and is in sliding fit with a guide rail 20, a U-shaped clamping groove 12 for clamping window glass is formed in the slider 10, a buffering block 30 is arranged on one surface of the slider 10, which is close to the guide rail 20, and when the slider 10 rises to a position close to an upper stop position, the buffering block 30 abuts against the top of the guide rail 20. When the slider 10 rises to be close to the top dead center position, the buffer block 30 is abutted against the top of the guide rail 20, and at the moment, the glass is not contacted with the bottom of the top end groove of the upper frame of the automobile door, so that the rising speed of the glass can be reduced, and because the buffer block 30 has a certain deformation amount, the motor overcomes the elasticity of the buffer block 30 to drive the glass to be contacted with the bottom of the top end groove of the upper frame of the automobile door, so that the impact force of the glass and the top frame when the glass rises is reduced, and the noise is reduced. Compared with the document 1, the utility model discloses set up buffer block 30 on slider 10, because the material of slider 10 is not metal but plastics, consequently buffer block 30 can be when slider 10 moulds plastics with the integrative injection moulding of slider 10, has avoided the installation of two pieces, simplifies production technology. Above-mentioned scheme is effectual to have reduced glass to the impact energy of door frame, groove, has reduced glass and has dashed a sound, realizes the promotion of sound quality. Meanwhile, due to the reduction of the whole impact energy, the reliability of each part of the whole door system and the whole glass lifter assembly system is effectively improved, the impact is reduced by the impact abrasion of the grooves, the durable abrasion of the steel wire ropes and the plastic parts of the lifter, and the service life of the parts is prolonged.

Furthermore, the sliding groove 11 includes the convex strip 111 located in the middle of the slider 10, the side of the slider 10 extends towards the convex strip 111 to form the claw 112, the convex strip 111, the slider 10 body and the claw 112 jointly enclose the sliding groove 11 with the cross section being L-shaped, the buffer block 30 is arranged at the top of the convex strip 111, the top of the convex strip 111 is the position firstly abutting against the top of the guide rail 20, and therefore the buffer block 30 is arranged at the top of the convex strip 111, and the buffering effectiveness is ensured.

As the utility model discloses a preferred scheme, the top of sand grip 111 is provided with the fixed block 14 of spill structure, fixed block 14 and the integrative injection moulding of slider 10, and in the about portion of spill of fixed block 31 was arranged in to buffer block 30, and slider 10 and the integrative injection moulding of buffer block 30 both. The fixed block 14 forms a supporting step surface, the step surface has a concave constraint structure, the thickness of the step surface has a certain buffering effect, the step surface and the slider 10 are integrally molded into an integral structure through a double-color injection mold, the integral structure is tightly combined with the slider 10 and cannot fall off, secondary assembly is not needed, and redundant assembly processes cannot be increased; then, a buffer block 30 is designed on the concave fixed block 14 of the slide block 10, and the slide block 10 and the buffer block 30 can be integrally molded.

In order to ensure that the buffer block 30 can be firstly contacted with the guide rail 20, the upper end of the guide rail 20 is bent towards the slider 10 to form an upper folding edge 21, the upper folding edge 21 and the slider 10 are arranged at a distance from each other in the direction close to the side plate surface, and the projection of the upper folding edge 21 and the buffer block 30 in the vertical plane and the projection of the upper folding edge 21 in the vertical plane have an overlapped part, so that the buffer block 30 can be directly acted on the upper folding edge 21.

When the buffer block 30 is abutted against the top of the upper folded edge 21, the distance between the glass and the bottom of the groove at the top end of the upper frame of the vehicle door is 3-5 mm. Through the DMU simulation of three-dimensional data, calculate the theoretical position of slider 10 when glass upper end and door frame contact, the extreme stroke position of the 20 upper ends of guide rail of rethread glass-frame riser ware assembly can calculate the concrete height dimension and the buffer capacity of buffer block 30, both can ensure that glass can fully rise to the summit (ensure that the leakproofness of door closed condition is not influenced), can play effectual cushioning effect again, reduce glass's the impact energy that summits.

Preferably, when the buffer block 30 abuts against the top of the upper folded edge 21, the distance between the glass and the bottom of the groove at the top end of the upper frame of the vehicle door is 4mm. Glass rises the in-process, and when glass rose to apart from door upper ledge top groove bottom position 4mm distance, the bottom surface contact began the compression on buffer block 30 and the guide rail 20, added the groove buffering stack of door upper ledge, reduced the impact energy of glass to door upper ledge bottom to reduced glass and dashed a sound, realized the promotion of sound quality.

In a similar way, the lower end of the convex strip 111 is also integrally injection-molded with a damping block 13, when the slider 10 moves downwards along the guide rail 20 to a position close to the bottom dead center, damping and noise reduction are carried out on cheerful, and the noise of the whole vehicle is reduced.

In order to ensure the stability of the sliding block 10 in the sliding process, 2 sliding grooves 11 are arranged on the front side or the rear side of the sliding block 10, so that the sliding block 11 is prevented from inclining and shaking.

A groove-shaped bushing which is matched with the sliding chute 11 in shape is arranged in the sliding chute 11, and the groove-shaped bushing is made of lubricating materials or the contact part of the groove-shaped bushing and the guide rail 20 is coated with a lubricating layer. The position that cell type bush and guide rail 20 contact site produced relative friction between the two promptly is this, this position is after lubricating material or coating has the lubricant coating, alright in order to improve the lubricity between cell type bush and the guide rail 20 greatly, it is more smooth and easy to make window glass go up and down, the production of frictional noise has been reduced, the heat that the friction produced has been reduced simultaneously, and the cell type bush has kept apart the slider 10 that friction position and engineering plastics were made, the heat of transmission to engineering plastics has been reduced, further prevented slider 10 thermal aging, the service life of slider has been improved. The sliding block 10 is still formed by injection molding of engineering plastics, so that the strength of the sliding block 10 is guaranteed, the sliding block still has certain elastic deformation capacity, the sliding block 10 can deform and form clamping fit with the window glass when the window glass is installed, the lubricating piece is small, the structure of the lifter sliding block is not changed too much, and the manufacturing cost is effectively controlled.

Claims

1. The utility model provides a glass-frame riser dashes a noise buffer structure, includes slider (10), is provided with the groove length direction on slider (10) and is located vertical spout (11), and spout (11) constitute sliding fit with guide rail (20), are equipped with U type draw-in groove (12) that are used for joint window glass on slider (10), its characterized in that: one side of the sliding block (10) close to the guide rail (20) is provided with a buffer block (30), and when the sliding block (10) rises to a position close to the top dead center, the buffer block (30) is abutted against the top of the guide rail (20).

2. The window regulator pop-up noise dampening structure of claim 1, wherein: spout (11) including sand grip (111) that are located slider (10) middle part, the side of slider (10) has jack catch (112) towards sand grip (111) direction extension, sand grip (111), slider (10) body and jack catch (112) enclose synthetic cross-section jointly and are spout (11) of L shape, buffer block (30) set up the top at sand grip (111).

3. The window regulator pop-up noise dampening structure of claim 2, wherein: the top of each convex strip (111) is provided with a fixed block (14) with a concave structure, the fixed block (14) and the sliding block (10) are integrally formed in an injection molding mode, the buffer block (30) is arranged in the concave constraint portion of the fixed block (31), and the sliding block (10) and the buffer block (30) are integrally formed in an injection molding mode.

4. The window regulator pop-up noise dampening structure of claim 1, wherein: an upper folded edge (21) is bent towards the direction of the slider (10) at the upper end of the guide rail (20), the upper folded edge (21) and the side plate surface close to the slider (10) are arranged at intervals, and the projection of the upper folded edge (21) and the buffer block (30) in the vertical plane and the projection of the upper folded edge (21) in the vertical plane have an overlapping part.

5. The window regulator pop-up noise dampening structure of claim 4, wherein: when the buffer block (30) is abutted against the top of the upper folded edge (21), the distance between the glass and the bottom of the groove at the top end of the upper frame of the vehicle door is 3-5 mm.

6. The window regulator pop-up noise dampening structure of claim 5, wherein: when the buffer block (30) is abutted against the top of the upper folded edge (21), the distance between the glass and the bottom of the groove at the top end of the upper frame of the vehicle door is 4mm.

7. The window regulator pop-up noise dampening structure of claim 2, wherein: the lower end of the convex strip (111) is also integrally injection-molded with a damping block (13).

8. The window regulator pop-up noise dampening structure of claim 1, wherein: the sliding grooves (11) are arranged at the front side or the rear side of the sliding block (10) in 2.

9. The window regulator pop-up noise dampening structure of claim 8, wherein: a groove-shaped bushing in accordance with the shape of the sliding groove is installed in the sliding groove (11), and the groove-shaped bushing is made of a lubricating material or the contact part of the groove-shaped bushing and the guide rail (20) is coated with a lubricating layer.