Control assembly and electronic equipment

Abstract

The utility model provides a control assembly and an electronic device, the control assembly is used on the electronic device, a control circuit is arranged in the electronic device, the control assembly comprises a substrate, a keycap and a line switch, and the line switch at least comprises a first signal transmission line and a second signal transmission line which are respectively and electrically connected with the control circuit; the key cap has a pressing state and a releasing state, when the key cap is in the pressing state, the key cap pushes the first line section of the first signal transmission line to be connected with the second line section of the second signal transmission line so as to conduct the control circuit, the key cap can rotate relative to the substrate so as to adjust the sum of the resistance values of the two line sections, and when the key cap is in the releasing state, the key cap is in the releasing state. The first line segment of the first signal transmission line is separated from the second line segment of the second signal transmission line to disconnect the control line.

Description

Technical Field

[0001] The utility model belongs to the technical field, and in particular relates to a control component and an electronic device. Background Art

[0002] Currently, the ThinkPad notebooks on the market have three button keys set side by side. One of the button keys needs to be used in conjunction with the TrackPoint (little red dot) on the device, which is not easy to operate. Utility Model Content

[0003] In view of the above problems in the prior art, the utility model provides a control component and an electronic device. The key caps in the control component can be used without the need to cooperate with the TrackPoint (small red dot) on the device, so as to facilitate the realization of related functions.

[0004] The technical solution adopted in the embodiment of the utility model is:

[0005] A control component is used in an electronic device, wherein the electronic device is provided with a control circuit, wherein the control component comprises a substrate, and a key cap and a circuit switch respectively arranged on the substrate, wherein the circuit switch comprises at least a first signal transmission line and a second signal transmission line respectively electrically connected to the control circuit;

[0006] The keycap has a pressed state and a released state. When the keycap is in the pressed state, the keycap pushes the first line segment of the first signal transmission line to connect with the second line segment of the second signal transmission line to turn on the control circuit, and the keycap can rotate relative to the substrate to adjust the total resistance value of the two line segments. When the keycap is in the released state, the first line segment of the first signal transmission line is separated from the second line segment of the second signal transmission line to disconnect the control circuit.

[0007] Further, the circuit switch is a membrane switch, the keycap is located on a side of the membrane switch away from the substrate, and the membrane switch at least includes a first membrane layer and a second membrane layer sequentially arranged in a direction away from the keycap; a first silver paste circuit is provided on the first membrane layer, and a second silver paste circuit is provided on the second membrane layer, the first silver paste circuit forms the first signal transmission line, and the second silver paste circuit forms the second signal transmission line; the first ends of the two silver paste circuits are respectively electrically connected to the control circuit,

[0008] When the keycap is in a pressed state, it can squeeze the first film layer to deform so that the first contact of the first silver paste circuit contacts the second contact of the first silver paste circuit, and the part between the first contact of the first silver paste circuit and the first end forms the first circuit segment, and the part between the second contact of the first silver paste circuit and the first end forms the second circuit segment; when the keycap rotates relative to the substrate, the positions on the two contacts move with the rotation of the keycap.

[0009] Furthermore, the key cap is rotatably connected to the substrate and can rotate relative to the substrate, and the first signal transmission line and the second signal transmission line are both ring lines.

[0010] Furthermore, the key cap has a protruding structure on one side facing the substrate, and when the key cap is in a pressed state, the protruding structure contacts the first contact of the first signal transmission line and pushes the first contact to connect with the second contact.

[0011] Furthermore, the control component also includes an elastic member arranged on the substrate, the elastic member is opposite to the middle part of the keycap, and the middle part of the keycap has a push rod on the side facing the substrate. When the keycap is in a pressed state, the push rod squeezes the elastic member to deform it, and the elastic member applies a reaction force to the keycap to switch it from a pressed state to a released state.

[0012] Furthermore, the elastic member is a disc-shaped spring sheet, the spring sheet is buckled on the base plate, and the middle part of the spring sheet is opposite to the push rod.

[0013] Furthermore, a plurality of limit rods are provided at intervals around the key cap on a side of the substrate facing the key cap, the free end of the skirt portion of the key cap is bent into an annular platform, and a plurality of limit rods are provided with limit parts at their free ends, and the annular platform is located on a side of the limit part facing the substrate, and when the key cap is in a released state, the annular platform abuts against the limit part to limit the key cap from being separated from the substrate; when the key cap is in a pressed state, the annular platform is separated from the limit part to allow the key cap to rotate relative to the substrate.

[0014] Furthermore, a universal wheel is provided on the outer periphery of the key cap on the side facing the substrate, and when the key cap is in the pressed state, the universal wheel abuts against the substrate.

[0015] An electronic device comprises a display terminal and a system terminal, wherein the system terminal is provided with a control circuit and further comprises a control component as described in any one of the above embodiments.

[0016] Furthermore, the control component is arranged on the system end.

[0017] An electronic device comprises the antenna structure described in any one of the above embodiments.

[0018] Compared with the prior art, the beneficial effects of the embodiments of the present invention are:

[0019] The keycaps of the control assembly of the utility model do not need to be used with the TrackPoint in traditional electronic devices, and can be used alone. By pressing and rotating the keycaps, the control of related circuits can be realized, and related functions can be realized. The operation is convenient and the user experience is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the embodiments of the utility model. When appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present device or method.

[0021] Figure 1 This is a schematic diagram of the structure of the control component of the embodiment of the utility model;

[0022] Figure 2 It is a cross-sectional view of a control assembly according to an embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the key cap of an embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the substrate of an embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of a key cap and two silver paste circuits according to an embodiment of the utility model;

[0026] Figure 6 It is a schematic diagram of the structure in which two electric contacts on two silver paste circuits of the embodiment of the utility model are in contact at the first position;

[0027] Figure 7 This is a schematic diagram of the structure in which two contacts on two silver paste circuits are in contact at the second position in an embodiment of the utility model.

[0028] In the figure: 1. substrate; 10. elastic member; 11. limit rod; 12. limit part; 2. key cap; 21. protruding structure; 22. push rod; 23. universal wheel; 24. annular table; 3. first signal transmission line; 4. second signal transmission line; 5. left button; 6. right button; 7. first line segment; 8. second line segment. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] like Figure 1 , Figure 2 and Figure 5 As shown, the embodiment of the utility model provides a control component for an electronic device, wherein a control circuit is provided in the electronic device. The electronic device may be a laptop computer, and the control circuit may be a circuit for controlling the volume, or a circuit for controlling the screen brightness, or a circuit for controlling the scrolling of a page, etc., to realize a specific function.

[0031] The control assembly of this embodiment includes a substrate 1 and keycaps 2 and a circuit switch respectively arranged on the substrate 1. The circuit switch at least includes a first signal transmission line 3 and a second signal transmission line 4 respectively electrically connected to the control circuit.

[0032] The keycap 2 has a pressed state and a released state. When the keycap 2 is in the pressed state, the keycap 2 pushes the first line segment 7 of the first signal transmission line 3 to connect with the second line segment 8 of the second signal transmission line 4 to turn on the control circuit, and the keycap 2 can rotate relative to the substrate 1 to adjust the total resistance value of the two line segments, thereby adjusting the strength of the control signal.

[0033] Specifically, taking the control circuit as a circuit for controlling the volume as an example, when the two line segments are connected, the control circuit is turned on, and at this time, the volume of the electronic device can be adjusted by rotating the key cap 2 alone.

[0034] When the keycap 2 is in the released state, the first line segment 7 and the second line segment 8 of the first signal transmission line 3 are separated to disconnect the control circuit. At this time, the keycap 2 cannot be rotated and the volume of the electronic device will not change.

[0035] Therefore, the control component keycap 2 of this embodiment does not need to be used with the TrackPoint in traditional electronic devices, and can be used alone. The control of related circuits can be achieved by pressing and rotating the keycap 2, which is easy to operate and improves the user experience.

[0036] In some embodiments, the circuit switch may be a membrane switch, which is disposed on the substrate 1, and the key cap 2 is located on the side of the membrane switch away from the substrate 1. The membrane switch at least includes a first membrane layer (not shown in the figure) and a second membrane layer (not shown in the figure) which are sequentially disposed in a direction away from the key cap 2. An isolation layer is disposed between the two membrane layers.

[0037] Wherein, a first silver paste circuit is provided on the first film layer, and the first silver paste circuit forms the first signal transmission line 3, and a second silver paste circuit is provided on the second film layer, and the second silver paste circuit forms the second signal transmission line 4, (see Figure 5 shown).

[0038] Both silver paste circuits have resistance values, and the resistance value is limited by the length of the circuit. The structure of the two film layers and the isolation layer between them belongs to the prior art and will not be described in detail.

[0039] Furthermore, the two silver paste circuits have two opposite free ends, wherein the first free end D of the first silver paste circuit and the first free end C of the second silver paste circuit are electrically connected to the control circuit, respectively, and the second free end E of the first silver paste circuit and the second free end F of the second silver paste circuit are suspended or disconnected, respectively.

[0040] like Figure 6 and Figure 7 As shown, when the key cap 2 is in a pressed state, the key cap 2 can squeeze the first film layer to deform so that the first contact A on the first silver paste circuit contacts the second contact B on the second silver paste circuit. At this time, the portion between the first contact A of the first silver paste circuit and the first free end D thereof (i.e., circuit AD) forms a first circuit segment 7, and the portion between the second contact B of the second silver paste circuit and the first free end C thereof (i.e., circuit BC) forms a second circuit segment 8.

[0041] When the keycap 2 rotates relative to the substrate 1, the positions of the first contact A and the second contact B on the corresponding silver paste circuits are adjusted as the keycap 2 rotates. As the positions of the two contacts change, the corresponding resistance values ​​of the first circuit segment 7 and the second circuit segment 8 also change, thereby causing the total resistance value of the two circuit segments to change, and further causing the strength of the control signal to change.

[0042] Preferably, the first signal transmission line 3 and the second signal transmission line 4 of the present embodiment are both annular lines, the diameters of the first signal transmission line 3 and the second signal transmission line 4 are the same, and the first contact of the first signal transmission line 3 and the second contact of the second signal transmission line 4 are opposite to each other in the vertical direction.

[0043] The key cap 2 is rotatably connected to the substrate 1. When the key cap 2 is pressed vertically downward, the first contact point and the second contact point can contact each other, and when the key cap 2 rotates relative to the substrate 1, the positions of the two contacts also change accordingly.

[0044] Specifically, Figure 6 and Figure 7 As shown, when the first contact A on the first silver paste circuit contacts the second contact B on the second silver paste circuit, R 总 Equal to R AD With R BC sum.

[0045] When the key cap 2 rotates clockwise relative to the substrate 1, the length of the first line segment 7 and the length of the second line segment 8 increase respectively. AD The resistance value and R BC The resistance values ​​of R 总 Increase, and the volume of the electronic device will gradually decrease.

[0046] When the first contact A on the first silver paste circuit coincides with its second free end E or the second contact B on the second silver paste circuit coincides with its second free end F, R 总 maximum.

[0047] When the key cap 2 rotates counterclockwise relative to the base plate 1, on the contrary, R 总 When the first contact A on the first silver paste circuit coincides with its first free end D or the second contact B on the second silver paste circuit coincides with its first free end C, R 总 Minimum.

[0048] It is easy to know that when R 总 When the key is at its maximum, continue to turn the key cap 2 clockwise, R 总 From the maximum value to the minimum value. Correspondingly, when R 总 When it is at the minimum, continue to turn the key cap 2 counterclockwise, R 总 Transition from minimum to maximum value.

[0049] like Figure 3 and Figure 5 As shown, in some embodiments, the key cap 2 has a protruding structure 21 on one side facing the substrate 1. When the key cap 2 is in a pressed state, the protruding structure 21 can contact a certain point of the first signal transmission line 3 on the first film layer, and the point in contact with the protruding structure 21 is the first contact point. As the protruding structure 21 moves downward, the first film layer will deform so that the first contact point S on the first silver paste line contacts the second contact point B on the second silver paste line. Figure 6 and Figure 7 .

[0050] The protruding structure 21 of this embodiment can facilitate partial contact or point contact between the first silver paste circuit and the second silver paste circuit.

[0051] like Figure 2 and Figure 4 As shown, in some embodiments, the control assembly further includes an elastic member 10 disposed on the substrate 1 , and the elastic member 10 is located between the keycap 2 and the substrate 1 and is opposite to the middle of the keycap 2 .

[0052] The middle part of the keycap 2 is provided with a push rod 22 on one side facing the substrate 1. When the keycap 2 is in a pressed state, the push rod 22 can squeeze the elastic member 10 to deform it, and after the elastic member 10 is deformed, a reaction force is applied to the keycap 2 to switch it from the pressed state to the released state. In this way, when the user releases the keycap 2, the contact points on the two silver paste circuits can automatically disconnect, thereby disconnecting the control circuit.

[0053] Preferably, the elastic member 10 of this embodiment is a disc-shaped spring sheet, which is buckled on the substrate 1, that is, the convex surface of the spring sheet is opposite to the free end of the push rod 22, so that when the push rod 22 contacts the spring sheet, the spring sheet can be deformed toward the side close to the substrate 1. The use of this spring sheet structure is easy to implement and has a simple structure.

[0054] like Figure 2 and Figure 4 As shown, in some embodiments, a plurality of limiting rods 11 are spaced around the keycap 2 on one side of the substrate 1 facing the keycap 2 , and the free end of each limiting rod 11 is bent outward to form a limiting portion 12 .

[0055] Furthermore, the free end of the skirt portion of the keycap 2 is bent inwardly to form an annular platform 24 . When the keycap 2 is buckled on the substrate 1 , the annular platform 24 on the keycap 2 is located on the side of the limiting portion 12 of the limiting rod 11 facing the substrate 1 .

[0056] When the keycap 2 is in a released state, the annular platform 24 on the keycap 2 abuts against the limiting portion 12 of the limiting rod 11 to limit the keycap 2 from being separated from the substrate 1 , thereby ensuring that the keycap 2 can be fixed on the substrate 1 .

[0057] When the key cap 2 is in a pressed state, the annular platform 24 on the key cap 2 is separated from the limiting portion 12 of the limiting rod 11 , so that the key cap 2 can rotate relative to the substrate 1 .

[0058] like Figure 2 As shown, in some embodiments, a universal wheel 23 is provided on the outer periphery of the keycap 2 on the side facing the substrate 1. When the keycap 2 is in a pressed state, the universal wheel 23 can abut against the surface of the substrate 1. When the keycap 2 rotates relative to the substrate 1, the universal wheel 23 can reduce the friction between the substrate 1 and the keycap 2 to enhance the user experience.

[0059] An embodiment of the utility model further provides an electronic device, which includes a display terminal and a system terminal. The system terminal is provided with a control circuit. The electronic device also includes a control component of any one of the above embodiments.

[0060] Preferably, the electronic device can be a laptop computer, and the control component of this embodiment is arranged on the system end. For example, some system ends are provided with a keyboard area, and the control component can be arranged on one side of the keyboard area or in the keyboard area, and the left button 5 and the right button 6 are arranged on both sides of the control component; through the control component, functions such as adjusting the volume, screen brightness, scrolling up and down the page, fast forward and rewind of video / music, etc. can be realized, which improves the product experience, and some other control functions can be realized by pressing the left button 5 and the right button 6 respectively.

[0061] The above description is intended to be illustrative rather than restrictive, and those skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure. Moreover, the above examples (or one or more of them) may be used in combination with each other, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations.

Claims

1. A control component, used in an electronic device, wherein the electronic device is provided with a control circuit, characterized in that: The control assembly includes a substrate and a key cap and a circuit switch respectively arranged on the substrate, and the circuit switch at least includes a first signal transmission line and a second signal transmission line respectively electrically connected to the control circuit; The keycap has a pressed state and a released state. When the keycap is in the pressed state, the keycap pushes the first line segment of the first signal transmission line to connect with the second line segment of the second signal transmission line to turn on the control circuit, and the keycap can rotate relative to the substrate to adjust the total resistance value of the two line segments. When the keycap is in the released state, the first line segment of the first signal transmission line is separated from the second line segment of the second signal transmission line to disconnect the control circuit.

2. A control assembly according to claim 1, characterized in that: The circuit switch is a membrane switch, the keycap is located on a side of the membrane switch away from the substrate, the membrane switch at least comprises a first membrane layer and a second membrane layer sequentially arranged in a direction away from the keycap, a first silver paste circuit is arranged on the first membrane layer, a second silver paste circuit is arranged on the second membrane layer, the first silver paste circuit forms the first signal transmission line, and the second silver paste circuit forms the second signal transmission line; first ends of the two silver paste circuits are electrically connected to the control circuit respectively, When the keycap is in a pressed state, it can squeeze the first film layer to deform so that the first contact of the first silver paste circuit contacts the second contact of the first silver paste circuit, and the part between the first contact of the first silver paste circuit and the first end forms the first circuit segment, and the part between the second contact of the first silver paste circuit and the first end forms the second circuit segment; when the keycap rotates relative to the substrate, the positions on the two contacts move with the rotation of the keycap.

3. A control assembly as claimed in claim 2, characterized in that: The key cap is rotatably connected to the substrate and can rotate relative to the substrate. The first signal transmission line and the second signal transmission line are both ring lines.

4. A control assembly as claimed in claim 2, characterized in that: The key cap has a protruding structure on one side facing the substrate. When the key cap is in a pressed state, the protruding structure contacts the first contact of the first signal transmission line and pushes the first contact to connect with the second contact.

5. A control assembly according to claim 1, characterized in that: The control component also includes an elastic member arranged on the substrate, the elastic member is opposite to the middle part of the keycap, and the middle part of the keycap has a push rod on the side facing the substrate. When the keycap is in a pressed state, the push rod squeezes the elastic member to deform it, and the elastic member applies a reaction force to the keycap to switch it from a pressed state to a released state.

6. A control assembly according to claim 5, characterized in that: The elastic member is a disk-shaped spring sheet, which is buckled on the base plate, and the middle part of the spring sheet is opposite to the push rod.

7. A control assembly according to claim 1, characterized in that: A plurality of limiting rods are arranged at intervals around the keycap on one side of the substrate facing the keycap, the free end of the skirt portion of the keycap is bent into an annular platform, and a limiting portion is respectively arranged at the free ends of the plurality of limiting rods, and the annular platform is located on the side of the limiting portion facing the substrate, and when the keycap is in a released state, the annular platform abuts against the limiting portion to limit the keycap from being separated from the substrate; when the keycap is in a pressed state, the annular platform is separated from the limiting portion to allow the keycap to rotate relative to the substrate.

8. A control assembly according to claim 7, characterized in that: A universal wheel is provided on the outer periphery of the key cap on the side facing the substrate. When the key cap is in the pressed state, the universal wheel abuts against the substrate.

9. An electronic device, comprising a display terminal and a system terminal, wherein the system terminal is provided with a control circuit, characterized in that: It also includes a control component as described in any one of claims 1 to 8.

10. An electronic device as claimed in claim 9, characterized in that: The control component is arranged on the system end.

Images