Knob type electronic switch

Abstract

The utility model discloses a knob type electronic switch, which comprises a rotary seat, a rotary cap, a PCB (printed circuit board), a key pressing sheet and an elastic washer, the rotary cap is sleeved on the outer side of the rotary seat and is in running fit with the rotary seat, the PCB is fixed on the inner side of the rotary seat, a counting sensor is arranged on the PCB, the inner side of the rotary cap is provided with triggering mechanisms which can trigger the counting sensor and are uniformly distributed along the circumferential direction, and the elastic washer is fixed on the rotary seat. The key pressing piece comprises two clamping hooks protruding upwards, the upper ends of the clamping hooks are matched with the PCB in a clamped mode, the key pressing piece comprises a pressing part protruding downwards, the pressing part is used for abutting against a preset switch unit, the elastic gasket is fixed to the edge of the bottom of the rotating base, the key pressing piece is located on the inner side of the elastic gasket, and when the rotating cap is pressed, the rotating base applies pressure to the elastic gasket. And the elastic washer is compressed and deformed to enable the pressing part to trigger the preset switch unit to be switched on. The utility model has the characteristics of small and exquisite structure, thinner size and the like.

Description

Technical Field

[0001] This utility model relates to regulating switches, and more particularly to a rotary electronic switch. Background Technology

[0002] A rotary switch is a device that adjusts signals by rotation. Existing rotary switches generally have a structure of a handle combined with an angular position sensor. For example, Chinese patent publication CN216389158U, entitled "A Car Audio Knob Assembly with Uniform Light Guiding," describes it as: "Comprising: a rotary button 1 and a rotary connecting button 2, wherein the rotary button 1 is sleeved on the upper end of the rotary connecting button 2, and the rotary button 1 includes a metal body 11, a light guide ring 12, and a plastic body 13, wherein the plastic body 13 is sleeved on the upper end of the rotary connecting button 2 through a slot 131 and a guide post 132." In this type of structure, the rotary button 1 and the rotary connecting button 2 are connected by a rotating post, and the overall height of the assembled components is relatively large, making it unsuitable for installation and use within a limited space and lacking the effect of ultra-thin applications. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a rotary electronic switch with a compact structure and thinner size, in order to address the shortcomings of the existing technology.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0005] A rotary electronic switch includes a base, a cap, a PCB board, a button holder, and an elastic washer. The cap is fitted onto the outside of the base and the two are rotatably engaged. The PCB board is fixed to the inside of the base and has a counting sensor. The inside of the cap has a triggering mechanism that can trigger the counting sensor and is evenly distributed circumferentially. The button holder includes two upwardly protruding hooks, the upper ends of which engage with the PCB board. The button holder also includes a downwardly protruding pressing part for abutting against a preset switch unit. The elastic washer is fixed to the bottom edge of the base, and the button holder is located inside the elastic washer. When the cap is pressed, the base applies pressure to the elastic washer, and the elastic washer is compressed and deformed to trigger the preset switch unit to conduct.

[0006] Preferably, two symmetrically arranged U-shaped spring pieces are fixed inside the rotating seat, and a downwardly recessed cover is fixed to the top of the rotating cap. The protruding part of the U-shaped spring piece elastically abuts against the outer side wall of the cover.

[0007] Preferably, the edge of the cover is evenly distributed with multiple hooks, and the inner wall of the cap is provided with multiple slots, the hooks and slots are one-to-one corresponding and the two are engaged.

[0008] Preferably, the top of the PCB board is provided with a display screen assembly and the two are electrically connected, and the center of the cover is provided with a clearance opening corresponding to the display screen assembly.

[0009] Preferably, the display assembly passes through the clearance opening and protrudes into the inside of the cover.

[0010] Preferably, the button pressing plate includes two positioning posts, and two positioning holes are formed on the PCB board. The positioning posts correspond one-to-one with the positioning holes, and the positioning posts are inserted into the positioning holes.

[0011] In the rotary electronic switch disclosed in this utility model, the rotary base serves as the main support mechanism, and its lower end is fixed to a preset position by the elastic washer. When the rotary cap is rotated, the triggering mechanism extending circumferentially triggers the counting sensor in sequence. The PCB board controls the counting sensor to achieve the rotary adjustment function. When the switch unit needs to be triggered, simply press down on the rotary cap. The pressure is transmitted through the rotary base to the elastic washer, causing the elastic washer to compress and deform. The pressing part contacts the switch unit and makes it conductive. Therefore, it has the function of pressing the switch while rotating for adjustment. Compared with the prior art, this utility model sets the PCB board inside the rotary base, the button pressure plate inside the elastic washer, and the rotary cap ring is sleeved on the outside of the rotary base. Its overall thickness is close to the thickness of the rotary cap, so the size is smaller and the overall structure is more compact, which better meets the ultra-thin application effect. Attached Figure Description

[0012] Figure 1 An exploded view of a rotary electronic switch;

[0013] Figure 2 A 3D view of a rotary electronic switch;

[0014] Figure 3 This is a bottom view of a rotary electronic switch. Detailed Implementation

[0015] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments.

[0016] This utility model discloses a rotary electronic switch, combined with Figures 1 to 3As shown, it includes a rotating base 1, a rotating cap 2, a PCB board 3, a button pressing plate 4, and an elastic washer 5. The rotating cap 2 is sleeved on the outside of the rotating base 1 and the two are rotatably engaged. The PCB board 3 is fixed to the inside of the rotating base 1 and is provided with a counting sensor 30. The inside of the rotating cap 2 is provided with a triggering mechanism that can trigger the counting sensor 30 and is evenly distributed circumferentially. The button pressing plate 4 includes two upwardly protruding hooks 40, the upper ends of which are engaged with the PCB board 3. The button pressing plate 4 includes a downwardly protruding pressing part 41, which is used to abut against a preset switch unit. The elastic washer 5 is fixed to the bottom edge of the rotating base 1 and the button pressing plate 4 is located inside the elastic washer 5. When the rotating cap 2 is pressed, the rotating base 1 applies pressure to the elastic washer 5, and the elastic washer 5 is compressed and deformed to cause the pressing part 41 to trigger the preset switch unit to conduct.

[0017] In the above structure, the rotating base 1 serves as the main support mechanism, and its lower end is fixed to a preset position by the elastic washer 5. When the rotating cap 2 is rotated, the triggering mechanism extending circumferentially triggers the counting sensor 30 in sequence. The PCB board 3 adjusts the counting sensor 30 by rotating it. When the switch unit needs to be triggered, the rotating cap 2 is pressed down, and the pressure is transmitted to the elastic washer 5 through the rotating base 1. The elastic washer 5 is compressed and deformed, and the pressing part 41 contacts the switch unit and makes it conductive. Therefore, it has the function of pressing the switch while adjusting by rotating. Compared with the prior art, this utility model sets the PCB board 3 inside the rotating base 1, sets the button pressure plate 4 inside the elastic washer 5, and the rotating cap 2 is sleeved on the outside of the rotating base 1. Its overall thickness is close to that of the rotating cap 2, so the size is smaller and the overall structure is more compact, which better meets the ultra-thin application effect.

[0018] Please see Figure 1 The screw base 1 has two symmetrically arranged U-shaped spring pieces 10 fixed inside, and the top of the screw cap 2 has a downwardly recessed cover 6 fixed thereon. The protruding parts of the U-shaped spring pieces 10 elastically abut against the outer side wall of the cover 6. The two symmetrical U-shaped spring pieces 10 can provide a damping effect on the screw cap 2, which helps to improve the screwing feel.

[0019] Regarding the preferred fixing method between the cover 6 and the cap 2, in this embodiment, the edge of the cover 6 is evenly distributed with multiple hooks 60, and the inner wall of the cap 2 is provided with multiple slots 20. The hooks 60 and the slots 20 correspond one-to-one and are engaged in a locking fit.

[0020] Based on this, the present invention also has a display function. Specifically, the top of the PCB board 3 is provided with a display screen assembly 7 and the two are electrically connected. The center of the cover 6 is provided with a clearance opening 61 corresponding to the display screen assembly 7.

[0021] In a preferred embodiment, the display assembly 7 passes through the clearance opening 61 and protrudes inward to the cover 6. In this embodiment, the cover 6 has a bowl-shaped recessed structure, and the display assembly 7 is located within the recessed area of ​​the cover 6, which provides protection for the display assembly 7.

[0022] In this embodiment, the elastic washer 5 can be an elastic rubber ring with adhesive layers on both sides.

[0023] In order to accurately position the button pressing plate 4, in this embodiment, the button pressing plate 4 includes two positioning posts 42 and two positioning holes 31 are opened on the PCB board 3. The positioning posts 42 correspond one-to-one with the positioning holes 31, and the positioning posts 42 are inserted into the positioning holes 31.

[0024] Regarding the preferred triggering method of the button pressure plate 4 and the switch unit: In some embodiments, the switch unit can be a tactile switch, and the button pressure plate 4 is used to apply pressure to the tactile switch to make it conduct; in other embodiments, the switch unit can also be a two-contact switch, and the two-contact switch is connected and conducted by the metal pressing part 41.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. All modifications, equivalent substitutions or improvements made within the technical scope of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A rotary electronic switch, characterized in that, The device includes a rotating base (1), a rotating cap (2), a PCB board (3), a button pressing plate (4), and an elastic washer (5). The rotating cap (2) is fitted onto the outside of the rotating base (1) and the two are rotatably engaged. The PCB board (3) is fixed to the inside of the rotating base (1). The PCB board (3) is provided with a counting sensor (30). The inside of the rotating cap (2) is provided with a triggering mechanism that can trigger the counting sensor (30) and is evenly distributed circumferentially. The button pressing plate (4) includes two upwardly protruding hooks (40). The upper end of (40) is engaged with the PCB board (3). The button pressing plate (4) includes a downward protruding pressing part (41). The pressing part (41) is used to abut against a preset switch unit. The elastic washer (5) is fixed to the bottom edge of the rotary seat (1). The button pressing plate (4) is located inside the elastic washer (5). When the rotary cap (2) is pressed, the rotary seat (1) applies pressure to the elastic washer (5). The elastic washer (5) is compressed and deformed so that the pressing part (41) triggers the preset switch unit to conduct.

2. The rotary electronic switch as described in claim 1, characterized in that, The rotating seat (1) has two symmetrically arranged U-shaped spring pieces (10) fixed inside. The top of the rotating cap (2) has a downwardly recessed cover (6). The protruding part of the U-shaped spring piece (10) elastically abuts against the outer wall of the cover (6).

3. The rotary electronic switch as described in claim 2, characterized in that, The edge of the cover (6) is evenly distributed with multiple hooks (60), and the inner wall of the cap (2) is provided with multiple slots (20). The hooks (60) and the slots (20) correspond one-to-one and are engaged.

4. The rotary electronic switch as described in claim 2, characterized in that, The PCB board (3) is provided with a display screen assembly (7) on its top and the two are electrically connected. The cover (6) has an opening (61) at its center that corresponds to the display screen assembly (7).

5. The rotary electronic switch as described in claim 4, characterized in that, The display assembly (7) passes through the clearance opening (61) and protrudes into the inside of the cover (6).

6. The rotary electronic switch as described in claim 1, characterized in that, The button pressing plate (4) includes two positioning posts (42), and two positioning holes (31) are opened on the PCB board (3). The positioning posts (42) correspond one-to-one with the positioning holes (31), and the positioning posts (42) are inserted into the positioning holes (31).

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