CN110970253A

CN110970253A - Automobile volume control combination switch

Info

Publication number: CN110970253A
Application number: CN201911221257.9A
Authority: CN
Inventors: 汪伟; 何千道
Original assignee: Huangshan Ruixing Automobile Electronic Co ltd
Current assignee: Huangshan Ruixing Automobile Electronic Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-04-07
Anticipated expiration: 2039-12-03
Also published as: CN110970253B

Abstract

The invention discloses an automobile volume control combination switch, which comprises a shell and a knob, wherein the shell is provided with a first end and a second end; the shell is provided with an encoder bracket, an encoder is fixedly arranged on the encoder bracket, a knob shaft is arranged on the knob, the knob shaft is matched with the encoder to drive the encoder to rotate, and an upper PCB is arranged below the encoder; a lower PCB is arranged below the upper PCB, lower sealing rubber is arranged on the lower PCB, an ejector rod matched with the encoder bracket is arranged on the lower sealing rubber, and a microswitch matched with the ejector rod is arranged on the lower PCB; the lower sealing rubber is also provided with a balance block, the balance block is provided with a reset column which enables the encoder support to reset, and the lower sealing rubber is provided with a reset rubber column which is matched with the balance block. The invention can realize the switching of songs or channels while realizing the volume adjustment, has simple structure, good hand feeling and convenient use, and can be widely applied to the field of automobile volume adjustment switches.

Description

Automobile volume control combination switch

Technical Field

The invention relates to the field of automobile switches, in particular to an automobile volume control combination switch.

Background

The existing automobile volume control combination switch can only be used for adjusting the volume, and the volume is controlled by rotating a knob. The Chinese patent application No. 2017213208204 discloses an automobile volume-adjusting switch mechanism, which comprises an upper shell and a lower shell, wherein the upper shell and the lower shell contain rotating shaft teeth and a rotating shaft cover, the rotating shaft teeth are cylindrical, the front ends of the rotating shaft teeth are connected with the rotating shaft cover, the rotating shaft cover is provided with cylindrical hollows along the front and the back, the front end of the shell is convexly provided with a clamping groove, the clamping groove limits a gear switch, the gear switch hollows form polygonal holes, the polygonal holes are matched with the cylindrical hollows, and a rotating shaft is arranged through the polygonal holes, the cylindrical hollows and the rotating shaft teeth; the positive progress effects of the invention are as follows: the gear switch, the shaft cover and the shaft teeth are concentric with the shell, and the rotating shaft rotates continuously when rotating, so that the structure is simple; the rotating shaft is provided with a polygonal column which is matched with the polygonal hole of the gear switch, and the rotating shaft is provided with a convex column which is matched with the size and the position of a concave column on the inner wall of the gear of the rotating shaft, so that the abrasion of each part during manual adjustment is reduced. Along with the abundance of functions in the vehicle, the requirement on the integration level of the switch is higher and higher, and the switch cannot occupy too large space, so that the requirement of the modern vehicle on the switch cannot be obviously met by a single switch function structure. As is known, volume adjustment is used together with a channel or song switching function, and in the existing automobile switch structure, the volume adjustment and song switching are both independently provided with buttons and are controlled separately, so that the arrangement space is greatly increased. And when the user carries out volume adjustment and song switching simultaneously, need operate two switches, complex operation. Therefore, in order to reduce the number of switches arranged in the automobile, a combined switch structure which can adjust the volume and can switch songs or channels needs to be developed.

Disclosure of Invention

The invention aims to provide an automobile volume control combination switch, which solves the problems that the existing volume control switch has single function and can not meet the requirement of a user on the switch function.

The technical scheme adopted by the invention for solving the technical problems is as follows: a car volume control combination switch comprises a shell, a base fixed on the shell and a knob; the shell is provided with a swingable encoder support, an encoder is fixedly arranged on the encoder support, a knob shaft is mounted on the knob, the knob shaft is matched with the encoder to drive the encoder to rotate, and an upper PCB matched with the encoder is arranged below the encoder; a lower PCB is arranged below the upper PCB, lower sealing rubber is arranged on the lower PCB, an ejector rod matched with the encoder bracket is arranged on the lower sealing rubber, and a microswitch matched with the ejector rod is arranged on the lower PCB; the lower sealing rubber is further provided with a balance block, the balance block is provided with a reset column which enables the encoder support to reset, the lower sealing rubber is provided with a reset rubber column matched with the balance block, and the upper end of the reset column is matched with the encoder support.

In order to ensure the matching precision, the balance block comprises a bottom plate and movable supporting arms symmetrically arranged on the bottom plate, supporting pins are arranged on the movable supporting arms, and supporting holes in clearance fit with the supporting pins are arranged on the shell; two reset columns are arranged in front of and behind the encoder bracket in the swinging direction; the movable supporting arms and the reset columns are respectively arranged at four corners of the bottom plate; one side of the bottom plate, which is positioned on the two reset columns, is provided with a soft adjusting rib.

In order to ensure that the bottom surface of the compression column matched with the reset rubber column is of a plane structure, the compression column matched with the reset rubber column is arranged below the side of the reset column, and a blind hole is formed in the compression column; the soft adjusting rib is arranged between the two compression columns.

In order to ensure the swinging sensitivity, a bending part is arranged between the bottom plate and the movable supporting arm, a bending arm is arranged between the reset column and the bottom plate, the reset column is arranged at the top of the bending arm, and a vertical reinforcing rib is arranged on the bending arm.

For facilitating the installation and the swing of the encoder bracket, the two sides of the encoder bracket are provided with rotating pins, and the shell is provided with mounting holes matched with the rotating pins.

The invention has the beneficial effects that: the invention sets up the encoder bracket which can swing and sets up the lower PCB board which is matched with the encoder bracket, thus the automobile volume control combination switch can be shifted forward and backward while realizing rotation, thereby realizing different functions. The balancing block is matched with the reset rubber column, so that the encoder support can be smoothly reset after being stirred, the structure is simple, the number of parts is small, and the use effect and the hand feeling are good. The movable support arm on the balancing block can guarantee that the balancing block swings along with the encoder support, the rubber column that resets cooperates with the balancing block and can also realize stirring feeling when guaranteeing the encoder support return to can adjust the softness of balancing block through the width and the thickness of the soft regulation muscle of adjustment, feel when the adjustment is stirred, simultaneously, only have a compression leg and reset rubber column effect when guaranteeing to stir. The bending part and the bending arm structure on the balance block are arranged, so that the balance block is more uniformly stressed and swings more smoothly.

The invention will be explained in more detail below with reference to the drawings and examples.

Drawings

Fig. 1 is an exploded view of the present invention.

Fig. 2 is a sectional view of the inner structure of the housing and the knob thereof according to the present invention.

Fig. 3 is a sectional view of the support pin of the present invention at the position where it engages with the housing.

Fig. 4 is a schematic perspective view of an encoder bracket and a mating structure thereof according to the present invention.

Fig. 5 is a schematic view of a matching structure of the encoder bracket and the housing according to the present invention.

FIG. 6 is a schematic perspective view of a weight of the present invention.

Fig. 7 is a schematic view of the matching structure of the compression column and the reset rubber column in the present invention.

Detailed Description

In the embodiment, as shown in fig. 1 to 7, an automobile volume control combination switch comprises a housing 1, a base 2 clamped and fixed below the housing 1, and a surface cover 13 buckled and pressed on the housing 1, wherein a buckle is arranged on the outer wall of the housing 1, and a bayonet matched with the buckle is arranged on the surface cover 13, so that the waterproof property of the housing 1 is ensured. The encoder support 4 capable of swinging is arranged on the shell 1, rotating pins 401 are arranged on two sides of the encoder support 4, and mounting holes 102 matched with the rotating pins 401 are formed in the shell 1. The encoder support 4 is fixedly provided with an encoder 5, the encoder support 4 is provided with an encoder mounting hole 402, and the encoder 5 is matched with the encoder mounting hole 402 through an encoder shell. The encoder 5 is provided with a rotating shaft 501 capable of being pressed downwards, the upper end of the rotating shaft 501 is connected with a knob shaft 6, and a knob 3 is fixedly arranged on the knob shaft 6. The knob shaft 6 is an injection molding, and the knob shaft 6 is sleeved on the rotating shaft 501 and is pressed tightly by the spring fixing ring 14 sleeved on the knob shaft 6, so that the knob shaft 6 and the rotating shaft 501 are fixed together. The lower part of the encoder 5 is provided with an upper PCB 7 matched with the encoder 5, and the upper PCB 7 is fixedly arranged on the encoder bracket 4 through a bolt. The knob 3 drives the encoder 5 to rotate on the upper PCB 7, thereby realizing the adjustment of the volume. Meanwhile, the pressing knob 3 drives the rotating shaft 501 on the encoder 5 to press down, so that the corresponding circuit on the upper PCB 7 is conducted, and the 'confirmation' function can be realized. The surface cover 13 is provided with a through hole for the knob shaft 6 to pass through, and a boss 131 higher than the surface cover 13 is arranged at the position of the through hole, so that the waterproofness is improved. In order to further improve the waterproof performance, the upper PCB handle 7 is reversely buckled with an upper sealing rubber 15. The encoder 5 is an alps encoder with model number EC12D1564402, but not limited thereto, and since the encoder 5 with the pressing function is an existing structure, it will not be described in detail herein. The encoder bracket 4 can rotate around the rotating pin 401 at the same time, and when the knob 3 is turned, the encoder bracket 4 can be turned.

The PCB is characterized in that a lower PCB 8 is further arranged below the upper PCB 7, switching terminals are arranged on the lower PCB 8 and the upper PCB 7, and the upper PCB 7 and the lower PCB 8 are connected through wiring harnesses among the switching terminals. Be provided with down sealing rubber 9 on the PCB board 8 down, be provided with two ejector pins 10 with encoder support 4 complex on the sealing rubber 9 down, be provided with on the PCB board 8 down with ejector pin 10 complex micro-gap switch 11. When the knob 3 is pulled forward to rotate the encoder bracket 4, one ejector rod 10 is pressed down to drive the microswitch 11 to be pressed down, so that the microswitch 11 is switched on; when the knob 3 is pulled backwards, the other ejector rod is pressed downwards to drive the other microswitch 11 to be pressed downwards, so that the microswitch 11 is switched on, and the turning-up and turning-down functions of songs or channels can be realized. The shell 1 is provided with an ejector rod mounting hole, and the ejector rod 10 is sleeved in the ejector rod mounting hole to ensure that the ejector rod 10 is in a vertical state.

In order to guarantee that the toggle knob 3 can obtain faster response and guarantee the hand feeling during toggling, a balance block 12 is further arranged on the lower sealing rubber 9, a reset column 121 enabling the encoder support 4 to reset is arranged on the balance block 12, a reset rubber column 901 matched with the balance block 12 is arranged on the lower sealing rubber 9, and the upper end of the reset column 121 is matched with the encoder support 4. The specific structure of the balance weight 12 includes a bottom plate 122, and movable support arms 123 symmetrically arranged on the bottom plate 122, wherein a bending part 128 is arranged between the bottom plate 122 and the movable support arms 123, a support pin 124 is arranged on the movable support arms 123, and a support hole 101 in clearance fit with the support pin 124 is arranged on the housing 1; two reset columns 121 are arranged in the front and back direction along the swinging direction of the encoder bracket 4, a bending arm 129 is arranged between the reset columns 121 and the bottom plate 122, the reset columns 121 are arranged at the top of the bending arm 129, and a vertical reinforcing rib 1291 is arranged on the bending arm 129 to ensure the strength; when the encoder bracket 4 swings, the counterweight 12 swings by pressing the reset column 121 downward. The movable supporting arms 123 and the reset columns 121 are respectively arranged at four corners of the bottom plate 122, so that the stress is more balanced, and the swing is smoother. One side of the bottom plate 122, which is located at the two reset columns 121, is provided with a soft adjusting rib 125, and the softness of the balance weight 12 can be adjusted by adjusting the width and thickness of the soft adjusting rib 125, so as to ensure the hand feeling during pressing.

The pressing column 126 matched with the reset rubber column 901 is arranged below the side of the reset column 121, the blind hole 127 is formed in the pressing column 126, and the blind hole 127 is formed in the pressing column 126, so that the bottom surface of the pressing column 126 can not shrink when the pressing column 126 is subjected to injection molding, the smoothness of the bottom surface of the pressing column 126 is guaranteed, and the matching between the pressing column 126 and the reset rubber column 901 is more reliable. The specific position of the flexible adjusting rib 125 is located between the two pressing columns 126. When the knob is toggled, the encoder bracket swings to drive the ejector rod on one side to press down, and the microswitch below the encoder bracket is switched on. Meanwhile, the reset columns on the same side are pressed downwards to enable the balance blocks to swing, and the pressure columns below the reset columns press the reset rubber columns to enable the reset rubber columns to deform. When the knob is loosened, the reset rubber column restores to the initial state under the action of the deformation force of the reset rubber column and pushes the column upwards to enable the balance block and the encoder bracket to return to the initial position.

The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.

Claims

1. An automobile volume control combination switch, comprising a casing (1), a base (2) fixed on the casing (1), and a knob (3); it is characterized in that: the casing (1) is provided with A swingable encoder bracket (4), an encoder (5) is fixedly arranged on the encoder bracket (4), a knob shaft (6) is installed on the knob (3), and the knob shaft (6) is connected to the encoder The encoder (5) cooperates to drive the encoder (5) to rotate, and an upper PCB board (7) matched with the encoder (5) is arranged below the encoder (5); A lower PCB board (8) is provided, a lower sealing rubber (9) is provided on the lower PCB board (8), and a top rod (10) matched with the encoder bracket (4) is provided on the lower sealing rubber (9) , the lower PCB board (8) is provided with a micro switch (11) that cooperates with the ejector rod (10); the lower sealing rubber (9) is also provided with a balance block (12), the balance block ( 12) A reset post (121) for resetting the encoder bracket (4) is provided on the lower sealing rubber (9), and a reset rubber post (901) matched with the balance block (12) is provided on the lower sealing rubber (9). The upper end of (121) is matched with the encoder bracket (4).

2. The automobile volume control combination switch according to claim 1, characterized in that: the balance block (12) comprises a bottom plate (122), a movable support arm (123) symmetrically arranged on the bottom plate (122), the The movable support arm (123) is provided with a support pin (124), and the housing (1) is provided with a support hole (101) that is clearance fit with the support pin (124); the reset post (121) is arranged along the encoder The bracket (4) is provided with two front and rear in the swing direction; the movable support arm (123) and the reset column (121) are respectively arranged on the four corners of the bottom plate (122); the bottom plate (122) is located on the two reset columns One side of (121) is provided with a soft adjusting rib (125).

3. The automobile volume control combination switch according to claim 2, characterized in that: a pressure column (126) that cooperates with the reset rubber column (901) is arranged under the side of the reset column (121), and the pressure column (126) is provided with a blind hole (127); the soft adjusting rib (125) is arranged between the two pressing columns (126).

4. The automobile volume control combination switch according to claim 2, characterized in that: a bent portion (128) is provided between the bottom plate (122) and the movable support arm (123), and the reset post (121) is connected to the movable support arm (123). A bending arm (129) is arranged between the bottom plates (122), the reset column (121) is arranged on the top of the bending arm (129), and a vertical reinforcing rib (1291) is arranged on the bending arm (129). .

5. The car volume control combination switch according to claim 1, characterized in that: both sides of the encoder bracket (4) are provided with rotating pins (401), and the housing (1) is provided with a rotating pin (401). The mounting hole (102) in which the pin (401) fits.