Input device and rotary electrical component

Abstract

The utility model provides an input device which comprises a shell, an operation part contained in the shell, a first actuating element, a second actuating element and a recovery mechanism enabling the first actuating element and the second actuating element to recover to the initial state through the operation part. A first rotary electric component which detects along with the rotation of the first actuating element; the first rotary electrical component is provided with a sliding terminal capable of rotating along with the rotation of the first actuating element, a rotating part for keeping the sliding terminal, a fixed terminal electrically connected with the sliding terminal, an insulating substrate formed outside the fixed terminal, and a shell for accommodating the sliding terminal and the rotating part and formed outside the insulating substrate; the sliding terminal comprises a base part fixedly held on the rotating part and an elastic contact part which is arranged above the base part and is used for being electrically connected with the fixed terminal, and the elastic contact part is provided with an arch-shaped part which is formed by protruding towards the fixed terminal and a convex hull which is formed by further protruding from the arch-shaped part, so that the contact stability of the terminal is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to an input device and a rotary electrical component, and particularly relates to an input device and a rotary electrical component with stable contact.

BACKGROUND TECHNIQUE

[0002] Chinese invention patent CN103854910B discloses an input device, which comprises a housing, an operating component and a first driving element accommodated in the housing, a first rotary electrical component for detecting the rotation of the first driving element, the first rotary electrical component having a sliding terminal capable of rotating with the rotation of the first driving element and a carbon film in contact with the sliding terminal, the sliding terminal and the fixed terminal continuously slide against each other, and the carbon powder generated by the abrasion of the carbon film surface is clamped between the sliding terminal and the carbon film, which may cause the risk of disconnection.

[0003] Therefore, it is necessary to provide a new input device and a rotary electrical component to overcome the above-mentioned defects.

TECHNICAL CONTENT

[0004] The utility model discloses an input device and a rotary electrical component with stable contact.

[0005] The utility model discloses an input device and a rotary electrical component with stable contact.

[0006] The housing has a metal upper shell and an insulating lower shell assembled with the metal upper shell, the metal upper shell comprises an upper wall part with an opening part, four side wall parts bent downward from the periphery of the upper wall part, the insulating lower shell is fixed to the lower end of the metal upper shell to form a bottom wall part, and a receiving space is formed between the metal upper shell and the insulating lower shell.

[0007] The operating component is inserted into the receiving space through the opening part and can be tilted.

[0008] The first driving element is arranged in the receiving space and linked with the operating component, and the first driving element rotates with the tilting of the operating component in the first direction.

[0009] The first rotary electrical component detects the rotation of the first driving element.

[0010] The second driving element is arranged in the receiving space and located below and perpendicular to the first driving element.

[0011] The second rotary electrical component detects the rotation of the second driving element.

[0012] a restoring mechanism that restores the first actuating element and the second actuating element to an initial state by means of the operation member;

[0013] The first rotary electrical component has a sliding terminal capable of rotating with the rotation of the first actuating element, a rotating portion holding the sliding terminal, a fixed terminal electrically connected with the sliding terminal, an insulating substrate formed outside the fixed terminal, and a housing accommodating the sliding terminal and the rotating portion and formed outside the insulating substrate, the sliding terminal includes a base portion held by the rotating portion and an elastic contact portion connected to the base portion for electrical connection with the fixed terminal, and the elastic contact portion has a convex bump protruding towards the fixed terminal.

[0014] Further, the base portion is provided in a ring structure closed in the circumferential direction, the base portion has an opening portion through which the first actuating element passes, the elastic contact portion is provided above the opening portion, and the sliding terminal further includes a pair of contact arms extending from the base portion and provided in the opening portion, and the free ends of the contact arms are electrically connected with the fixed terminal through an arc-shaped surface provided by bending.

[0015] Further, the sliding terminal includes a plurality of elastic contact portions, the elastic contact portions are provided obliquely to the base portion, the elastic contact portion has an arch-shaped portion protruding towards the fixed terminal and the convex bump further protruding from the arch-shaped portion.

[0016] Further, the contact arm includes a protrusion protruding from the arc-shaped surface towards the fixed terminal.

[0017] Further, the fixed terminal includes a first terminal electrically connected with the contact arm close to the center of the insulating substrate and a second terminal electrically connected with the elastic contact portion away from the center of the insulating substrate relative to the first terminal.

[0018] Further, a plurality of mounting columns are provided on the rotating portion, and a plurality of mounting holes are provided in the base portion corresponding to the mounting columns, so that the sliding terminal is held by the rotating portion.

[0019] Further, the second rotary electrical component has a sliding terminal capable of rotating with the rotation of the second actuating element, and the sliding terminal has the same structure as the sliding terminal of the first rotary electrical component.

[0020] Further, the surface of the fixed terminal is provided with a carbon film.

[0021] Further, the surface of the elastic contact portion of the sliding terminal is plated with a palladium-nickel plating layer or a platinum plating layer.

[0022] The utility model discloses a rotatory electrical component, with the sliding terminal of can rotate, the rotation part of forming in the sliding terminal outside, with the fixed terminal of sliding terminal electric connection, the insulating substrate of forming in the fixed terminal outside and the housing of containing the sliding terminal and the rotation part and forming in the insulating substrate outside, the sliding terminal includes the base of holding in the rotation part and the elastic contact part of connecting to the base for with the fixed terminal electric connection, the elastic contact part has the convex bundle of the protruding formation of facing the fixed terminal.

[0023] Compared with the prior art, the utility model has following beneficial effect: the input device sets up the arched part of protruding formation of facing the fixed terminal and the convex bundle of further protruding formation from the arched part in the elastic contact part, has changed the contact mode between the sliding terminal and carbon film, reduces the carbon powder amount of generating of two rubbings, guarantees stable contact. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the perspective view of the input device of the utility model.

[0025] Figure 2 It is Figure 1 The perspective view from another visual angle.

[0026] Figure 3 It is the perspective exploded view of the input device of the utility model.

[0027] Figure 4 It is Figure 3 Further perspective exploded view.

[0028] Figure 5 It is the perspective exploded view of the first rotatory electrical component of the utility model.

[0029] Figure 6 It is Figure 5 The perspective exploded view from another visual angle.

[0030] Figure 7 It is the front view of the sliding terminal of the utility model.

[0031] Figure 8 It is the side view of the sliding terminal of the utility model.

[0032] Figure 9 It is the schematic diagram of the sliding terminal and carbon film contact of the utility model.

[0033] Figure 10 It is Figure 1 The section view along A-A line.

[0034] The following specific embodiment will be further explained the utility model in conjunction with the above-mentioned drawing. DETAILED DESCRIPTION

[0035] The input device 100 will be described below. Figures 1 to 10 The input device 100 will be described below.

[0036] Please refer to Figures 1 to 4 The input device 100 includes a housing 1, the housing 1 has a metal upper shell 11 and an insulating lower shell 12 assembled with the metal upper shell 11. The metal upper shell 11 includes an upper wall part 111 provided with an opening part, four side wall parts 112 bent downward from the periphery of the upper wall part 111, the insulating lower shell 12 is fixed to the lower end of the metal upper shell 11 to form a bottom wall part, and the upper wall part 111 and the side wall part 112 of the metal upper shell 11 form a receiving space 113 with the insulating lower shell 12. The input device 100 further includes an operating component 2 which is inserted into the receiving space 113 through the opening part and can be tilted; a first driving element 3 arranged in the receiving space 113, which is linked with the operating component 2, the first driving element 3 rotates with the operating component 2 tilting in the first direction; a first rotary electrical component 4 which detects the rotating action of the first driving element 3; a second driving element 5 arranged in the receiving space 113, the second driving element 5 is located below the first driving element 3 and is orthogonal to the first driving element 3; a second rotary electrical component 6 which detects the rotating action of the second driving element 5; and a restoring mechanism 7 which restores the first driving element 3 and the second driving element 5 to the initial state by means of the operating component 2.

[0037] The first driving element 3 is linked with the operating component 2, and the first driving element 3 rotates with the operating component 2 tilting in the first direction. The first driving element 3 is provided with a first through hole 31 for inserting the operating component 2, and the first driving element 3 has a first shaft part 32 and a second shaft part 33 located on both sides of the first through hole 31 in a second direction perpendicular to the first direction. The second shaft part 33 cooperates with the first rotary electrical component 4. The insulating lower shell 12 is provided with a base for supporting the first shaft part 32 and the second shaft part 33. The base includes a first base 121 for supporting the first shaft part 32 and a second base 122 for supporting the second shaft part 33. The first base 121 and the second base 122 respectively have an inner side close to the operating component 2 in the second direction and an outer side relative to the inner side.

[0038] The first shaft portion 32 and the second shaft portion 33 are each provided with a circular arc surface to enable the first actuating element 3 to rotate in the first direction. The circular arc surface of the first shaft portion 32 has a curvature greater than that of the circular arc surface of the second shaft portion 33. The first base 121 supporting the first shaft portion 32 and the second base 122 supporting the second shaft portion 33 are each provided with a slot 123 to match the circular arc surface. The slot 123 is provided as an arc-shaped structure with an opening facing upward. The side wall portion 112 of the metal upper housing 11 is provided with a mounting opening 1121 facing downward, which cooperates with the slot 123 to clamp the first shaft portion 32 and the second shaft portion 33, so as to limit the relative movement between the first actuating element 3 and the housing 1 in the up-down direction. The first actuating element 3 and the second actuating element 5 further include an extension portion 34 extending outwardly in the second direction and the first direction, respectively. The first rotary electric component 4 and the second rotary electric component 6 are each mounted to the extension portion 34 of the first actuating element 3 and the second actuating element 5, so as to enable the first rotary electric component 4 and the second rotary electric component 6 to detect the rotation of the first actuating element 3 and the second actuating element 5.

[0039] In particular, reference is made to Figure 5 and Figure 6The first rotary electrical component 4 includes a rotating module 40 rotatable with the rotation of the first actuating element 3, a fixed terminal 41 electrically connected with the rotating module 40, an insulating substrate 42 formed outside the fixed terminal 41, and a housing 43 injection molded on the fixed terminal 41 and the insulating substrate 42. The fixed terminal 41 includes a first terminal 411 close to the center of the insulating substrate 42 and a second terminal 412 away from the center of the insulating substrate 42 relative to the first terminal 411. The surfaces of the first terminal 411 and the second terminal 412 are respectively provided with carbon films 44. The rotating module 40 is accommodated in the housing 43 and abuts against the carbon films 44, thereby being electrically connected with the fixed terminal 41. The rotating module 40 includes a sliding terminal 401 and a rotating part 402 holding the sliding terminal 401. The sliding terminal 401 includes a base 4011 held by the rotating part 402 and a plurality of elastic contact parts 4012 arranged above the base 4011 for contacting the carbon films 44 on the second terminal 412. The base 4011 is arranged in a ring structure closed in the circumferential direction and has an opening 4013 in the center for the extension 34 to pass through. The sliding terminal 401 further includes a pair of contact arms 4014 arranged above the opening 4013 for electrically connecting with the second terminal, which extend from the base 4011. The rotating part 402 is provided with a plurality of mounting columns 4021, and the base 4011 is provided with a plurality of mounting holes 4015 corresponding to the mounting columns 4021, so that the sliding terminal 401 is held by the rotating part 402. The housing 43 is further provided with a receiving cavity 431. The rotating module 40 is located in the receiving cavity 431 and rotates with the rotation of the first actuating element 3 through the extension 34.

[0040] Please refer to Figures 7 to 10 The contact arms 4014 are fixed at one end to the base 4011 and have an elastically deformable free end at the other end, and are formed into a circular arc surface by bending to contact the carbon films 44 on the first terminal 411. Each of the elastic contact parts 4012 and the contact arms 4014 are bent from the base 4011 and are arranged obliquely to the base 4011.

[0041] The elastic contact part 4012 has an arch part 4016 protruding towards the fixed terminal 41 and a convex part 4017 further protruding from the arch part 4016. The contact arm 4014 includes a convex part 4018 protruding from the circular arc surface. The sliding terminal 401 realizes point contact with the carbon film 44 through the convex part 4017 and the convex part 4018, effectively reducing the amount of carbon powder generated between the sliding terminal 401 and the carbon film 44 due to continuous sliding friction, avoiding the carbon powder being clamped between the elastic contact part 4012 and the carbon film 44, the contact arm 4014 and the carbon film 44 to affect the stability of the circuit. The surface of the elastic contact part 4012 of the sliding terminal 401 is electroplated with a wear-resistant plating layer such as palladium-nickel plating layer or platinum plating layer.

[0042] The second rotating electrical component 6 is provided with a sliding terminal 401 which is structurally identical to the sliding terminal 401 of the first rotating electrical component 4, so as to rotate with the second actuating element 5.

[0043] The above only describes some embodiments of the present application, not all embodiments, any equivalent changes made by those skilled in the art to the technical solutions of the present application by reading the specification of the present application are covered by the claims of the present application.

Claims

1. An input device comprising: a housing having a metal upper case and an insulating lower case assembled with the metal upper case, the metal upper case including an upper wall portion having an opening portion, four side wall portions extending downwardly and outwardly from the periphery of the upper wall portion, the insulating lower case being fixed to the lower end of the metal upper case to form a bottom wall portion, a receiving space being formed between the metal upper case and the insulating lower case; an operation member inserted into the receiving space through the opening portion and capable of performing a tilting operation; a first actuating element disposed in the receiving space and linked to the operation member, the first actuating element being rotated as the operation member is tilted in a first direction; a first rotary electrical component detected in response to the rotation of the first actuating element; a second actuating element disposed in the receiving space, the second actuating element being located below the first actuating element and orthogonal to the first actuating element; a second rotary electrical component detected in response to the rotation of the second actuating element; a restoring mechanism for restoring the first and second actuating elements to an initial state by means of the operation member; characterized in that the first rotary electrical component has a sliding terminal capable of rotating with the first actuating element, a rotating portion holding the sliding terminal, a fixed terminal electrically connected to the sliding terminal, an insulating substrate formed outside the fixed terminal, and a housing receiving the sliding terminal and the rotating portion and formed outside the insulating substrate, the sliding terminal including a base portion held by the rotating portion and an elastic contact portion connected to the base portion for electrical connection with the fixed terminal, the elastic contact portion having a convex portion protruding to face the fixed terminal.

2. The input device of claim 1, wherein: The base portion is provided in a circumferentially closed ring structure, the base portion has an opening portion through which the first actuating element passes, the elastic contact portion is disposed above the opening portion, and the sliding terminal further includes a pair of contact arms disposed in the opening portion from the base portion, the free ends of the contact arms being electrically connected to the fixed terminal through an arc-shaped surface disposed by bending.

3. The input device of claim 2, wherein: The sliding terminal includes a plurality of elastic contact portions, the elastic contact portions being disposed obliquely to the base portion, the elastic contact portions having an arch-shaped portion protruding to face the fixed terminal and the convex portion further protruding from the arch-shaped portion.

4. The input device of claim 3, wherein: The contact arm includes a protrusion protruding from the arc-shaped surface to face the fixed terminal.

5. The input device of claim 4, wherein: The fixed terminal includes a first terminal electrically connected to the contact arm near the center of the insulating substrate and a second terminal electrically connected to the elastic contact portion away from the center of the insulating substrate relative to the first terminal.

6. The input device of claim 4, wherein: A plurality of mounting posts are provided on the rotating portion, and a plurality of mounting holes are provided in the base portion corresponding to the mounting posts, so that the sliding terminal is held by the rotating portion.

7. The input device of claim 6, wherein: The second rotary electrical component has a sliding terminal capable of rotating with the second actuating element, the sliding terminal having the same structure as the sliding terminal of the first rotary electrical component.

8. The input device of claim 1, wherein: The surface of the fixed terminal is provided with a carbon film.

9. The input device of claim 1, wherein: The surface of the elastic contact part of the sliding terminal is electroplated with a palladium-nickel plating layer or a platinum plating layer.

10. A rotary electric component characterized by comprising: The sliding terminal includes a base part held by the rotating part and an elastic contact part connected to the base part for electrically connecting with the fixed terminal, and the elastic contact part has a convex bump protruding to face the fixed terminal.

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