Waterproof double-layer coding switch module

Abstract

The utility model discloses a waterproof double-layer coding switch module, which comprises a first rotating member, a second rotating member, a fixed seat and an inner support, the fixed seat is used for being fixedly connected with a product, a PCB (printed circuit board) is fixedly mounted at the upper end of the inner support, the first rotating member is connected with an outer rotating shaft of a hollow encoder, and a switch pressing member is arranged at the first rotating member; the inner support is fixedly connected with the fixing base, the second rotating piece is rotationally arranged between the inner support and the fixing base, and a potential brush is fixedly arranged at the position of the second rotating piece. Three different working modes can be executed, a control signal is directly transmitted to a product through line connection, a wire harness of the product can penetrate through the fixing base, the second rotating piece and the hollow cavity of the inner support and is directly connected with the PCB, the second rotating piece can independently rotate relative to the fixing base, and therefore the product can be conveniently and rapidly rotated. The overall structural design is very compact, simple and convenient, the self size can be minimized, the cost can be optimized, and excellent waterproof performance and rotating hand feeling are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of knob switches, in particular to a waterproof double-layer coding switch module. Background Art

[0002] The rotary switch is an important component widely used in electronic products, and it mainly plays the role of switch and function adjustment. Most of the existing rotary switches can only realize the function of single knob adjustment. With the development of electronic products, the requirements for rotary switches are no longer satisfied with the single knob adjustment function, and there is a functional requirement for dual knob adjustment. The Chinese utility model patent with the authorization announcement number CN213752482U discloses a rotary switch with an encoder, a potentiometer, and a digital display. The rotary switch drives the rotating shaft of the hollow encoder by rotating the face cover, so that the rotating shaft drives the encoding brush inside the hollow encoder to slide relative to the encoding code piece to generate an encoding signal; and the outer shell can be rotated to make the middle shell and the turntable rotate synchronously with the outer shell, and the potential brush inside the turntable slides relative to the potential code piece on the PCB board to generate a potential signal.

[0003] Although the knob switch effectively realizes the dual-knob adjustment, its shell must be directly mechanically connected to the rotating control component of the product, that is, "the bottom of the shell 8 is connected to the valve control rod of the gas stove" mentioned in its manual. The shell of the knob switch is mechanically connected to the valve control rod of the gas stove, so that the valve control rod of the gas stove can be driven to rotate synchronously by rotating the shell, thereby controlling its rotation. However, most of the current electronic products transmit control signals through line connections, and there is no rotating control component for mechanical connection, so the knob switch cannot be used. In addition, the knob switch cannot play the role of switch button control for the product. To this end, we propose a waterproof double-layer coding switch module and its working method. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a waterproof double-layer coding switch module.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A waterproof double-layer coding switch module, comprising a first rotating member, a second rotating member, a fixing seat, and an inner bracket, wherein the fixing seat is used to be fixedly connected to a product, a PCB circuit board is fixedly installed at the upper end of the inner bracket, a hollow encoder is arranged on the upper side of the PCB circuit board, the first rotating member is connected to the outer rotating shaft of the hollow encoder, a switch pressing member is arranged to be lifted and lowered along the axial direction at the first rotating member, and the switch pressing member is used to touch a control button at the PCB circuit board;

[0007] The lower end of the inner bracket is fixedly connected to the fixed seat, and the second rotating member is rotatably arranged between the inner bracket and the fixed seat. A potential brush is fixedly connected to the second rotating member. When the second rotating member is rotated, relative sliding occurs between the potential brush and the potential code piece on the PCB circuit board to generate a potential signal.

[0008] To further explain, the potential brush is arranged on the upper side of the second rotating member, and a plurality of sound-generating grooves are arranged on the lower side of the second rotating member along the circumferential direction.

[0009] It is further explained that the fixing seat is provided with a sounding bead which matches with the sounding groove, and a spring is provided between the sounding bead and the fixing seat.

[0010] It is further explained that a first waterproof sealing ring is sandwiched between the first rotating member and the switch pressing member.

[0011] To further illustrate, a second waterproof sealing ring is sandwiched between the first rotating member and the second rotating member.

[0012] It is further explained that the switch pressing member is provided with a pressure rod portion for pressing the control button on the PCB circuit board, and a guide protrusion portion for sliding connection with the base of the hollow encoder is provided around the pressure rod portion, and the pressure rod portion is connected to the guide protrusion portion.

[0013] To further elaborate, a buckle portion is provided around the pressure rod portion, and a release blocking portion cooperating with the buckle portion is provided at the base of the hollow encoder.

[0014] It is further explained that the inner bracket is provided with a gap for the potential brush to pass through.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model can directly transmit control signals to the product through line connection. The wiring harness of the product can pass through the hollow cavity of the fixed seat, the second rotating member and the inner bracket and be directly connected to the PCB circuit board. The second rotating member can rotate independently relative to the fixed seat. The overall structural design is very compact and simple, which can achieve self-size minimization and cost optimization.

[0017] Second, the utility model can perform three different working modes through the first rotating member, the second rotating member, and the switch pressing member to achieve rich control functions;

[0018] 3. The utility model is provided with waterproof sealing rings between the first rotating member and the switch pressing member, and between the first rotating member and the second rotating member, which can be waterproof in different directions of immersion and has excellent waterproof performance;

[0019] Fourth, the utility model can make a corresponding sound when the second rotating member is rotated, producing a rotating feel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structural decomposition of the utility model.

[0021] Figure 2 It is a structural sectional view of the utility model.

[0022] Figure 3 It is a structural schematic diagram of the utility model.

[0023] Figure 4 It is a schematic diagram of the partial structure decomposition of the utility model.

[0024] Figure 5 It is a schematic diagram of the local structure of the second rotating member of the utility model.

[0025] Figure 6 It is a structural schematic diagram of the utility model when it is specifically applied to a product.

[0026] Figure 7 It is a structural sectional view when the utility model is specifically applied to a product.

[0027] Figure numbers: 10, first rotating member; 20, second rotating member; 21, potential brush; 22, sounding groove; 23, handle; 30, fixing seat; 31, positioning column; 32, threaded hole; 40, inner bracket; 401, air-avoiding gap; 50, PCB circuit board; 51, control button; 60, hollow encoder; 61, outer shaft; 62, base; 621, tripping blocking part; 70, switch pressing member; 71, pressure rod; 72, guide protrusion; 73, buckle; 81, sounding bead; 82, spring; 83, first waterproof sealing ring; 84, second waterproof sealing ring; 90, bottom trim; 91, PWM screw. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0029] Combined with Figure 1 To Attachment Figure 5As shown, a waterproof double-layer coding switch module includes a first rotating member 10, a second rotating member 20, a fixing seat 30, and an inner bracket 40. The fixing seat 30 is used to be fixedly connected to the product. A PCB circuit board 50 is fixedly installed at the upper end of the inner bracket 40. A hollow encoder 60 is arranged on the upper side of the PCB circuit board 50. The hollow encoder 60 specifically includes an outer rotating shaft 61 and a base 62. The base 62 is fixed to the PCB circuit board 50 by soldering. The first rotating member 10 is connected to the outer rotating shaft 61 of the hollow encoder 60. A switch pressing member 70 is arranged to be lifted and lowered along the axial direction at the first rotating member 10. The switch pressing member 70 is used to touch the control button 51 at the PCB circuit board 50.

[0030] The lower end of the inner bracket 40 is fixedly connected to the fixing seat 30, and the inner bracket 40 and the fixing seat 30 are specifically snap-fitted. The second rotating member 20 is rotatably arranged between the inner bracket 40 and the fixing seat 30. The second rotating member 20 is fixedly connected with a potential brush 21, which is specifically riveted to the second rotating member 20. The inner bracket 40 is provided with an air-avoiding gap 401 for the power supply potential brush 21 to pass through. When the second rotating member 20 is rotated, the potential brush 21 slides relative to the potential code chip at the PCB circuit board 50 to generate a potential signal.

[0031] Combined with Figure 2 and attached Figure 5 As shown, the potential brush 21 is arranged on the upper side of the second rotating member 20, and a plurality of sound-generating grooves 22 are arranged on the lower side of the second rotating member 20 along the circumferential direction. A sound-generating bead 81 matching with the sound-generating groove 22 is arranged at the fixed seat 30, and a spring 82 is arranged between the sound-generating bead 81 and the fixed seat 30. When the handle 23 at the second rotating member 20 is pushed, the second rotating member 20 rotates, and relative sliding occurs between the potential brush 21 at the second rotating member 20 and the potential code chip at the PCB circuit board 50 to generate a potential signal; at the same time, the sound-generating groove 22 at the lower side of the second rotating member 20 passes over the sound-generating bead 81 and makes a clicking sound, thereby generating the feel of rotating the second rotating member 20.

[0032] Combined with Figure 1 and attached Figure 2 As shown, a first waterproof seal ring 83 is sandwiched between the first rotating member 10 and the switch pressing member 70. A second waterproof seal ring 84 is sandwiched between the first rotating member 10 and the second rotating member 20. Figure 2 As shown, the first waterproof seal ring 83 can specifically play a waterproof role between the first rotating member 10 and the switch pressing member 70 (i.e., the immersion direction 1), and can prevent the splashing water from flowing into the interior of the hollow encoder 60. The second waterproof seal ring 84 can specifically play a waterproof role between the first rotating member 10 and the second rotating member 20 (i.e., the immersion direction 2), and can prevent the backflow of water from entering the PCB circuit board 50.

[0033] Combined with Figure 2 and attached Figure 4 As shown, the switch pressing member 70 is provided with a pressing rod portion 71 for pressing the control button 51 on the PCB circuit board 50, and a guide protrusion portion 72 for slidingly connecting with the base 62 of the hollow encoder 60 is provided around the pressing rod portion 71, and the pressing rod portion 71 is connected to the guide protrusion portion 72. A buckle portion 73 is also provided around the pressing rod portion 71, and a tripping blocking portion 621 matched with the buckle portion 73 is provided at the base 62 of the hollow encoder 60.

[0034] Combined with Figure 6 and attached Figure 7 As shown, when the waterproof double-layer coding switch module is installed at the product, the positioning column 31 of the fixing seat 30 is inserted into the positioning hole of the bottom decorative plate 90 of the product, and then connected with the threaded hole 32 of the fixing seat 30 through the PWM screw 91, so that the waterproof double-layer coding switch module is fixedly installed at the bottom decorative plate 90 of the product. The waterproof double-layer coding switch module itself has no display function, and the PCB circuit board 50 outputs the signal to the display panel of the product. The PCB circuit board 50 is specifically provided with a patch seat, and the fixing seat 30, the second rotating member 20, and the inner bracket 40 are all provided with a hollow cavity. The wiring harness of the product can pass through the hollow cavity of the fixing seat 30, the second rotating member 20, and the inner bracket 40 and directly connect with the patch seat at the PCB circuit board 50. Compared with the knob switch mentioned in the background technology, the utility model can directly transmit the control signal to the product through the line connection, and this connection method is very compact and simple, which can achieve the minimization of its own size and the optimization of cost.

[0035] Combined with Figure 1 and attached Figure 2 As shown, a working method of a waterproof double-layer coding switch module is based on any of the above waterproof double-layer coding switch modules, including three working modes of pressing the switch pressing member 70, rotating the first rotating member 10, and rotating the second rotating member 20:

[0036] Press the switch pressing member 70: the switch pressing member 70 slides downward along the base 62 of the hollow encoder 60 and produces a pressing feeling. The hollow encoder 60, the PCB circuit board 50, the first rotating member 10, and the second rotating member 20 are all in a stationary state relative to the switch pressing member 70. The pressing rod of the switch pressing member 70 touches the control button 51 on the PCB circuit board 50 to realize the on-off of the signal of the control PCB circuit board 50;

[0037] Rotate the first rotating member 10: The first rotating member 10 drives the outer shaft 61 of the hollow encoder 60 to rotate synchronously, and the base 62 of the hollow encoder 60, the PCB circuit board 50, the switch pressing member 70, and the second rotating member 20 are all in a stationary state relative to the first rotating member 10, so as to control the hollow encoder 60 to generate a coding signal;

[0038] Rotate the second rotating member 20: the fixed seat 30, the inner bracket 40, the first rotating member 10, and the PCB circuit board 50 are all stationary relative to the second rotating member 20. Pushing the handle portion 23 at the second rotating member 20 can drive the second rotating member 20 to rotate, and relative sliding occurs between the potential brush 21 at the second rotating member 20 and the potential code piece at the PCB circuit board 50 to generate a potential signal.

[0039] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0040] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0041] The above description does not limit the technical scope of the present invention. Any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A waterproof double-layer coding switch module, characterized in that: The invention comprises a first rotating member (10), a second rotating member (20), a fixing seat (30), and an inner bracket (40); the fixing seat (30) is used for being fixedly connected to the product; a PCB circuit board (50) is fixedly mounted at the upper end of the inner bracket (40); a hollow encoder (60) is arranged on the upper side of the PCB circuit board (50); the first rotating member (10) is connected to an outer rotating shaft (61) of the hollow encoder (60); a switch pressing member (70) is arranged to be lifted and lowered along the axial direction at the first rotating member (10); the switch pressing member (70) is used for pressing a control button (51) at the PCB circuit board (50); The lower end of the inner bracket (40) is fixedly connected to the fixing seat (30); the second rotating member (20) is rotatably arranged between the inner bracket (40) and the fixing seat (30); a potential brush (21) is fixedly connected to the second rotating member (20); when the second rotating member (20) is rotated, relative sliding occurs between the potential brush (21) and the potential code piece at the PCB circuit board (50), thereby generating a potential signal.

2. A waterproof double-layer coding switch module according to claim 1, characterized in that: The potential brush (21) is arranged on the upper side of the second rotating member (20), and a plurality of sound-generating grooves (22) are arranged on the lower side of the second rotating member (20) along the circumferential direction.

3. A waterproof double-layer coding switch module according to claim 2, characterized in that: A sound-generating bead (81) matching the sound-generating groove (22) is provided at the fixing seat (30), and a spring (82) is provided between the sound-generating bead (81) and the fixing seat (30).

4. A waterproof double-layer coding switch module according to claim 1, characterized in that: A first waterproof sealing ring (83) is sandwiched between the first rotating member (10) and the switch pressing member (70).

5. The waterproof double-layer coding switch module according to claim 1, characterized in that: A second waterproof sealing ring (84) is sandwiched between the first rotating member (10) and the second rotating member (20).

6. A waterproof double-layer coding switch module according to claim 1, characterized in that: The switch pressing member (70) is provided with a pressing rod portion (71) for pressing a control button (51) on the PCB circuit board (50), and a guide protrusion portion (72) for slidingly connecting to a base (62) of the hollow encoder (60) is provided around the pressing rod portion (71), and the pressing rod portion (71) is connected to the guide protrusion portion (72).

7. A waterproof double-layer coding switch module according to claim 6, characterized in that: A buckle portion (73) is also provided around the pressure rod portion (71), and a release blocking portion (621) matching with the buckle portion (73) is provided at the base (62) of the hollow encoder (60).

8. The waterproof double-layer coding switch module according to claim 1, characterized in that: The inner bracket (40) is provided with a gap (401) for the potential brush (21) to pass through.

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