Automobile volume control combination switch

Abstract

The invention discloses a car volume control combination switch, comprising a housing and a knob; an encoder bracket is arranged on the housing, an encoder is fixedly arranged on the encoder bracket, a knob shaft is installed on the knob, the knob shaft cooperates with the encoder to drive the encoder to rotate, an upper PCB board is arranged below the encoder; a lower PCB board is also arranged below the upper PCB board, a lower sealing rubber is arranged on the lower PCB board, a top rod cooperating with the encoder bracket is arranged on the lower sealing rubber, a micro switch cooperating with the top rod is arranged on the lower PCB board; a balance block is also arranged on the lower sealing rubber, a reset column for resetting the encoder bracket is arranged on the balance block, and a reset rubber column cooperating with the balance block is arranged on the lower sealing rubber. The invention can realize the switching of songs or channels while realizing volume adjustment, has a simple structure, good hand feel, is easy to use, and can be widely used in the field of car volume adjustment switches.

Description

Technical Field

[0001] The invention relates to the field of automobile switches, in particular to an automobile volume control combination switch. Background Art

[0002] The existing automobile volume control combination switch can only be used to adjust the volume, and the volume is controlled by turning the knob. For example, Chinese patent application No. 2017213208204 discloses an automobile volume adjustment switch mechanism, which includes an upper shell and a lower shell, the upper shell and the lower shell contain a rotating shaft tooth and a rotating shaft cover, the rotating shaft tooth is cylindrical, the front end of the rotating shaft tooth is connected to the rotating shaft cover, the rotating shaft cover is provided with a cylindrical hollow along the front and back, the front end of the shell is protruding with a card slot, the card slot limits the gear switch, the gear switch is hollowed to form a polygonal hole, the polygonal hole matches the cylindrical hollow, and a rotating shaft is provided through the polygonal hole, the cylindrical hollow and the rotating shaft tooth; the positive and progressive effects of the present invention are: the gear switch, the shaft cover, the shaft tooth and the shell are concentric, the rotating shaft rotates continuously when the rotating shaft rotates, and the structure is simple; the rotating shaft is provided with a polygonal column to match the polygonal hole of the gear switch, and the rotating shaft is provided with a convex column that matches the size and position of the concave column on the inner wall of the rotating shaft tooth, thereby reducing the wear between the components during manual adjustment. With the enrichment of in-car functions, the integration requirements of switches are getting higher and higher, and they cannot take up too much space. A single switch function structure obviously cannot meet the requirements of modern vehicles for switches. As we all know, volume adjustment is used together with the channel or song switching function. In the existing car switch structure, volume adjustment and song switching are each provided with separate buttons and controlled separately, which greatly increases the layout space. And when users adjust the volume and switch songs at the same time, they need to operate two switches, which is cumbersome. Therefore, in order to reduce the number of switches arranged in the car, it is necessary to develop a combined switch structure that can adjust the volume and switch songs or channels. Summary of the invention

[0003] The purpose of the present invention is to provide a car volume control combination switch to solve the problem that the existing volume control switch has a single function and cannot meet the user's demand for switch functions.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a car volume control combination switch, comprising a shell, a base fixed on the shell, and a knob; a swingable encoder bracket is arranged on the shell, an encoder is fixedly arranged on the encoder bracket, a knob shaft is installed on the knob, the knob shaft cooperates with the encoder to drive the encoder to rotate, an upper PCB board cooperating with the encoder is arranged below the encoder; a lower PCB board is also arranged below the upper PCB board, a lower sealing rubber is arranged on the lower PCB board, a push rod cooperating with the encoder bracket is arranged on the lower sealing rubber, and a micro switch cooperating with the push rod is arranged on the lower PCB board; a balancing block is also arranged on the lower sealing rubber, a reset column for resetting the encoder bracket is arranged on the balancing block, a reset rubber column cooperating with the balancing block is arranged on the lower sealing rubber, and the upper end of the reset column cooperates with the encoder bracket.

[0005] To ensure the matching accuracy, the balancing block includes a base plate, movable supporting arms symmetrically arranged on the base plate, the movable supporting arms are provided with supporting pins, and the shell is provided with supporting holes that are clearance-matched with the supporting pins; two reset columns are provided front and back along the swinging direction of the encoder bracket; the movable supporting arms and the reset columns are respectively arranged on the four corners of the base plate; the base plate is provided with a soft adjustment rib on one side of the two reset columns.

[0006] To ensure that the bottom surface where the pressure column and the reset rubber column cooperate is a planar structure, a pressure column cooperating with the reset rubber column is arranged below the side of the reset column, and a blind hole is arranged in the pressure column; the soft adjustment rib is arranged between the two pressure columns.

[0007] To ensure the sensitivity of the swing, a bending portion is provided between the bottom plate and the movable support arm, a bending arm is provided between the reset column and the bottom plate, the reset column is provided at the top of the bending arm, and a vertical reinforcing rib is provided on the bending arm.

[0008] In order to facilitate the installation and swinging of the encoder bracket, rotating pins are arranged on both sides of the encoder bracket, and mounting holes matching with the rotating pins are arranged on the shell.

[0009] Beneficial effects of the present invention: The present invention provides a swingable encoder bracket and a matching lower PCB board, so that the car volume control combination switch can be turned and moved forward and backward at the same time, thereby realizing different functions. The balance block cooperates with the reset rubber column to ensure that the encoder bracket can be smoothly reset after being moved. The structure is simple, the number of parts is small, and the use effect and hand feeling are good. The movable support arm on the balance block can ensure that the balance block swings together with the encoder bracket. The reset rubber column cooperates with the balance block to ensure that the encoder bracket returns to its position while also realizing the hand feeling of moving. The softness of the balance block can be adjusted by adjusting the width and thickness of the soft adjustment ribs, and the hand feeling when moving can be adjusted. At the same time, it is ensured that only one pressure column and the reset rubber column act when moving. The bending part and the bending arm structure on the balance block make the force on the balance block more uniform and the swing more smooth.

[0010] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is an exploded view of the present invention.

[0012] Figure 2 It is a cross-sectional view of the internal structure of the housing and its knob of the present invention.

[0013] Figure 3 It is a cross-sectional view of the matching position of the support pin and the shell in the present invention.

[0014] Figure 4 It is a schematic diagram of the three-dimensional structure of the encoder bracket and its matching structure in the present invention.

[0015] Figure 5 It is a schematic diagram of the matching structure of the encoder bracket and the housing in the present invention.

[0016] Figure 6 It is a schematic diagram of the three-dimensional structure of the balancing block in the present invention.

[0017] Figure 7 It is a schematic diagram of the matching structure of the medium pressure column and the reset rubber column of the present invention. DETAILED DESCRIPTION

[0018] Examples, such as Figures 1 to 7As shown, a car volume control combination switch comprises a housing 1, a base 2 fixedly mounted below the housing 1, and a cover 13 pressed on the housing 1, wherein a buckle is provided on the outer wall of the housing 1, and a bayonet matched with the buckle is provided on the cover 13, so as to ensure the waterproofness of the housing 1. A swingable encoder bracket 4 is provided on the housing 1, and rotating pins 401 are provided on both sides of the encoder bracket 4, and a mounting hole 102 matched with the rotating pin 401 is provided on the housing 1. An encoder 5 is fixedly provided on the encoder bracket 4, and an encoder mounting hole 402 is provided on the encoder bracket 4, and the encoder 5 is matched with the encoder mounting hole 402 through the encoder housing. A depressible rotating shaft 501 is provided on the encoder 5, and the upper end of the rotating shaft 501 is connected to the knob shaft 6, and a knob 3 is fixedly provided on the knob shaft 6. The knob shaft 6 is an injection molded part, which is sleeved on the rotating shaft 501 and is fixed to the rotating shaft 501 by pressing the spring fixing ring 14 sleeved on the knob shaft 6. An upper PCB board 7 cooperating with the encoder 5 is arranged below the encoder 5, and the upper PCB board 7 is fixedly mounted on the encoder bracket 4 by bolts. The knob 3 drives the encoder 5 to rotate on the upper PCB board 7, thereby realizing the volume adjustment. At the same time, the downward pressing knob 3 drives the rotating shaft 501 on the encoder 5 to press downward, so that the corresponding circuit on the upper PCB board 7 is turned on, and the "confirmation" function can be realized. The cover 13 is provided with a through hole for the knob shaft 6 to pass through, and a boss 131 higher than the cover 13 is provided at the position of the through hole, thereby improving the waterproofness. In order to further improve the waterproofness, the upper PCB handle 7 is buckled with an upper sealing rubber 15. The encoder 5 is selected from but not limited to the alps encoder, model EC12D1564402. Since the encoder 5 with a pressing function is an existing structure, it will not be described in detail here. The encoder bracket 4 can also rotate around the rotating pin 401 , and when the knob 3 is turned, the encoder bracket 4 can be turned over.

[0019] A lower PCB board 8 is also provided below the upper PCB board 7. Both the lower PCB board 8 and the upper PCB board 7 are provided with transfer terminals. The upper PCB board 7 and the lower PCB board 8 are connected in circuit through the wiring harness between the transfer terminals. A lower sealing rubber 9 is provided on the lower PCB board 8. Two push rods 10 cooperating with the encoder bracket 4 are provided on the lower sealing rubber 9. A micro switch 11 cooperating with the push rod 10 is provided on the lower PCB board 8. When the knob 3 is turned forward to rotate the encoder bracket 4, one of the push rods 10 is pressed down to drive the micro switch 11 to be turned on at that location; when the knob 3 is turned backward, another push rod is pressed down to drive another micro switch 11 to be turned on at that location, so that the function of turning up and down songs or channels can be realized. A push rod mounting hole is provided on the housing 1. The push rod 10 is sleeved in the push rod mounting hole to ensure that the push rod 10 is in a vertical state.

[0020] In order to ensure that the dial knob 3 can get a faster response and at the same time ensure the feel when dialing, a balance block 12 is also provided on the lower sealing rubber 9, and a reset column 121 for resetting the encoder bracket 4 is provided on the balance block 12. A reset rubber column 901 cooperating with the balance block 12 is provided on the lower sealing rubber 9, and the upper end of the reset column 121 cooperates with the encoder bracket 4. The specific structure of the balancing block 12 includes a bottom plate 122, a movable support arm 123 symmetrically arranged on the bottom plate 122, a bending portion 128 is arranged between the bottom plate 122 and the movable support arm 123, a support pin 124 is arranged on the movable support arm 123, and a support hole 101 is arranged on the housing 1 to fit with the support pin 124; two reset columns 121 are arranged front and back along the swing direction of the encoder bracket 4, a bending arm 129 is arranged between the reset column 121 and the bottom plate 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 to ensure strength; when the encoder bracket 4 swings, the reset column 121 is pressed down to make the balancing block 12 swing. The movable support arm 123 and the reset column 121 are respectively arranged at the four corners of the bottom plate 122, so that the force is more balanced and the swing is smoother. The bottom plate 122 is provided with a soft adjustment rib 125 on one side of the two reset columns 121 . The softness of the balance block 12 can be adjusted by adjusting the width and thickness of the soft adjustment rib 125 to ensure a good feel when pressed.

[0021] A pressure column 126 cooperating with the reset rubber column 901 is arranged at the lower side of the reset column 121, and a blind hole 127 is arranged in the pressure column 126. By setting the blind hole 127, it can be ensured that the bottom surface of the pressure column 126 will not produce a shrinkage pit during injection molding, thereby ensuring the flatness of the bottom surface of the pressure column 126, making it more reliable to cooperate with the reset rubber column 901. The specific position of the soft adjustment rib 125 is located between the two pressure columns 126. When the knob is turned, the encoder bracket is swung, and the swing of the encoder bracket drives the push rod on one side to press down, so that the micro switch below it is turned on. At the same time, the reset column on the same side is pressed down, so that the balance block swings, and the pressure column below the reset column presses down the reset rubber column, so that the reset rubber column is deformed. When the knob is released, under the deformation force of the reset rubber column, the reset rubber column returns to its initial state, and pushes the pressure column upward, so that the balance block and the encoder bracket return to their initial positions.

[0022] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A vehicle volume control combination switch, comprising a housing (1), a base (2) fixed on the housing (1), and a knob (3); characterized in that: The housing (1) is provided with a swingable encoder bracket (4), an encoder (5) is fixedly provided on the encoder bracket (4), a knob shaft (6) is mounted on the knob (3), the knob shaft (6) cooperates with the encoder (5) to drive the encoder (5) to rotate, an upper PCB board (7) cooperating with the encoder (5) is provided below the encoder (5); a lower PCB board (8) is also provided below the upper PCB board (7), a lower sealing rubber (9) is provided on the lower PCB board (8), and the lower sealing rubber (9) is provided on the lower PCB board (8). The rubber (9) is provided with a push rod (10) that cooperates with the encoder bracket (4), and the lower PCB board (8) is provided with a micro switch (11) that cooperates with the push rod (10); the lower sealing rubber (9) is also provided with a balance block (12), and the balance block (12) is provided with a reset column (121) for resetting the encoder bracket (4); the lower sealing rubber (9) is provided with a reset rubber column (901) that cooperates with the balance block (12), and the upper end of the reset column (121) cooperates with the encoder bracket (4).

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

3. The automobile volume control combination switch as claimed in claim 2, characterized in that: A pressure column (126) cooperating with the reset rubber column (901) is arranged at the lower side of the reset column (121), and a blind hole (127) is arranged in the pressure column (126); the soft adjustment rib (125) is arranged between the two pressure columns (126).

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

5. The automobile volume control combination switch according to claim 1, characterized in that: Rotation pins (401) are provided on both sides of the encoder bracket (4), and mounting holes (102) matching the rotation pins (401) are provided on the housing (1).

Images