CN214012804U - Tact switch, input device and keyboard - Google Patents
Tact switch, input device and keyboard Download PDFInfo
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- CN214012804U CN214012804U CN202022985094.6U CN202022985094U CN214012804U CN 214012804 U CN214012804 U CN 214012804U CN 202022985094 U CN202022985094 U CN 202022985094U CN 214012804 U CN214012804 U CN 214012804U
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Abstract
The utility model provides a touch switch. The light touch switch comprises a pressing body, a first electrode, a second electrode, a third electrode and a capacitance circuit, wherein the first electrode is elastically abutted against the pressing body and comprises a central conducting point, a first outer side abutting surface and a second outer side abutting surface, the second electrode is electrically connected with the first outer side abutting surface and the second outer side abutting surface, the pressing body is pressed downwards or moved upwards to enable the central conducting point and the third electrode to be mutually conducted or separated, when conducting is conducted, the first electrode, the second electrode and the third electrode are connected in series to form a passage, and when separating is conducted, the first electrode, the second electrode and the third electrode are connected in series to form an open circuit. The capacitor circuit is connected in series with a circuit formed by connecting the first electrode, the second electrode and the third electrode in series. The utility model discloses a touch switch input speed is fast, the simple installation. Simultaneously the utility model also provides an input device and keyboard that adopt above-mentioned dabbing switch.
Description
Technical Field
The utility model relates to a dab switch, in particular to a dab switch, input device and keyboard that is used for capacitanc mechanical button as input system.
Background
With the development of modern electronic technology, electronic products gradually go deep into the lives of people, and various electronic products such as telephones, mobile phones, notebook computers, remote controllers and the like accompany the daily lives of people.
The role played by the input device of the electronic product is particularly important. The touch switch adopted in the prior art mainly adopts a membrane switch as a switch element, and when a key is pressed down, the pressure is applied to the membrane switch to drive the membrane switch to be conducted, so that a physical and mechanical input signal is converted into an electronic input signal, and the input action is realized.
However, the above design still has the following drawbacks:
firstly, the distance between the electrodes of the membrane switch is short, so that the keys are prevented from being touched by mistake, the pressing stroke of the keys is long, and the input speed is slow;
secondly, in order to improve the pressing hand feeling, the key element for transmitting physical and mechanical signals is complex in design and not easy and convenient to assemble.
Therefore, it is necessary to provide a tact switch to solve the above-mentioned technical problems of slow speed and inconvenient assembly.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that the input speed of the touch switch is slow and the assembly is not simple and convenient among the prior art, the utility model provides a touch switch that the input speed is fast and the assembly is simple and convenient. Meanwhile, an input device and a keyboard adopting the touch switch are also provided.
The utility model provides a touch switch, which comprises a pressing body, a first electrode, a second electrode, a third electrode and a capacitance circuit, wherein the first electrode and the elastic butt of the pressing body comprise a central conduction point, a first outer butt surface and a second outer butt surface, the first outer butt surface and the second outer butt surface are arranged at two opposite sides of the central conduction point, the second electrode is electrically connected with the first outer butt surface and the second outer butt surface, the third electrode and the second electrode are arranged at a relative interval, the pressing body is pressed down or moved up to make the central conduction point and the third electrode mutually conducted or separated, when the central conduction point and the third electrode are mutually conducted, a passage is formed by the first electrode, the second electrode and the third electrode in series, when the central conduction point and the third electrode are mutually separated, the first electrode, the second electrode and the third electrode are connected in series to form an open circuit, and the capacitor circuit is connected in series with a circuit formed by the first electrode, the second electrode and the third electrode in series.
In a preferred embodiment of the tact switch provided in the present invention, the first electrode is a conductive elastic piece of a metal dome.
In a preferred embodiment of the tact switch, the second electrode includes a first conductive terminal and a second conductive terminal disposed at an interval, the first conductive terminal is electrically connected to the first abutting surface, and the second conductive terminal is electrically connected to the second abutting surface.
In a preferred embodiment of the tact switch, the third electrode includes a fixed conducting end, the pressing body is pressed down or moved up to make the central conducting point and the fixed conducting end conduct or separate with each other, when the central conducting point and the fixed conducting end conduct with each other, the first electrode, the second electrode and the third electrode are connected in series to form a path, when the central conducting point and the fixed conducting end separate with each other, the first electrode, the second electrode and the third electrode are connected in series to form a broken circuit.
In a preferred embodiment of the tact switch, the capacitor circuit includes a fixed capacitor or a plurality of fixed capacitors, the fixed capacitor or the plurality of fixed capacitors and the circuit series arrangement formed by the series connection among the first electrode, the second electrode and the third electrode, the plurality of fixed capacitors connect the output capacitance in series or in parallel.
In a preferred embodiment of the tact switch, the capacitor circuit includes a plurality of branches, each branch is connected in series with the circuit formed by the series connection between the first electrode, the second electrode and the third electrode, each branch includes at least one branch switch, and is closed or disconnected the branch switch makes the capacitor circuit output corresponds to the set capacitance value.
In a preferred embodiment of the tact switch provided in the present invention, the tact switch further comprises a base, the second electrode has two ends, the second electrode one end is fixedly embedded in the base, the third electrode has two ends, the third electrode one end is fixedly embedded in the base.
In a preferred embodiment of the tact switch provided in the present invention, the tact switch further comprises a circuit board, the second electrode other end is welded and fixed to the circuit board, the third electrode other end is welded and fixed to the circuit board, and the capacitance circuit is provided to the circuit board.
An input device comprises a touch switch, a capacitance detection module and a control module, wherein the touch switch receives a physical pressing signal and correspondingly feeds back a capacitance change signal, the capacitance detection module receives the capacitance change signal from the touch switch and judges the working state of the touch switch to generate a working state signal, the control module receives the working state signal from the capacitance detection module and correspondingly generates an input signal, the touch switch comprises a pressing body, a first electrode, a second electrode, a third electrode and a capacitance circuit, the first electrode is elastically abutted against the pressing body and comprises a central conduction point, a first outer side abutting surface and a second outer side abutting surface, the first outer side abutting surface and the second outer side abutting surface are arranged on two opposite sides of the central conduction point, and the second electrode is electrically connected with the first outer side abutting surface and the second outer side abutting surface, the third electrode and the second electrode are arranged at an interval, the pressing body is pressed downwards or moves upwards to enable the central conducting point and the third electrode to be mutually conducted or separated, when the central conducting point and the third electrode are mutually conducted, the first electrode, the second electrode and the third electrode are connected in series to form a passage, when the central conducting point and the third electrode are mutually separated, the first electrode, the second electrode and the third electrode are connected in series to form an open circuit, and the capacitor circuit is connected in series with a circuit formed by the first electrode, the second electrode and the third electrode in series.
A keyboard comprises a control panel, a capacitance detection module, a touch switch and a control module, wherein the touch switch is arranged on the control panel, the capacitance detection module is arranged on the control panel and is electrically connected with the touch switch, the control module generates an input signal according to the detection result of the capacitance detection module correspondingly, the touch switch comprises a pressing body, a first electrode, a second electrode, a third electrode and a capacitance circuit, the first electrode is elastically abutted against the pressing body and comprises a central conduction point, a first outer side abutting surface and a second outer side abutting surface, the first outer side abutting surface and the second outer side abutting surface are arranged on two opposite sides of the central conduction point, the second electrode is electrically connected with the first outer side abutting surface and the second outer side abutting surface, and the third electrode is arranged at an interval relative to the second electrode, the pressing body is pressed downwards or moved upwards to enable the central conducting point and the third electrode to be mutually conducted or separated, when the central conducting point and the third electrode are mutually conducted, the first electrode, the second electrode and the third electrode are connected in series to form a passage, when the central conducting point and the third electrode are mutually separated, the first electrode, the second electrode and the third electrode are connected in series to form an open circuit, and the capacitor circuit is connected in series with a circuit formed by the first electrode, the second electrode and the third electrode in series.
Compared with the prior art, the utility model provides a dab the switch and press the stroke short, press the body direct action first electrode, thereby make establish ties between first electrode, second electrode and the third electrode and form the route or open circuit, realize quick input, and do not have the transmission of multiple physics mechanical force, the design is more simple and convenient, easy installation.
On the other hand, the second electrode and the third electrode are fixedly arranged, only the first electrode is deformed by physical mechanical force, and the tact switch is high in stability, not easy to damage and simpler and more convenient to install.
In addition, due to the arrangement of the capacitor circuit, the requirement of the touch switch on the contact sensitivity between the first electrode and the second electrode is lowered, the production cost is reduced, and the input precision is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic view of a three-dimensional assembly structure of a tact switch of the present invention;
FIG. 2 is an exploded perspective view of the tact switch shown in FIG. 1;
FIG. 3 is a cross-sectional view taken along line III-III of FIG. 1;
FIG. 4a and FIG. 4b are side sectional views of the tact switch shown in FIG. 1 in two working states, i.e., an inactive state and an active state, respectively;
fig. 5 is a block diagram of an input device according to the present invention;
fig. 6 is a schematic perspective view of a keyboard according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Please refer to fig. 1 and fig. 2, in which fig. 1 is a schematic diagram of a three-dimensional assembly structure of the tact switch of the present invention, and fig. 2 is a schematic diagram of a three-dimensional exploded view of the tact switch shown in fig. 1. The tact switch 10 includes an upper cover 11, a base 12, a pressing body 13, a first electrode 15, a second electrode 16, a third electrode 17, a capacitor circuit 18, and a circuit board 19. The upper cover 11 is provided with a lead through hole 111. The upper cover 11 is matched with the base 12 through a clamping structure to enclose a receiving space for receiving the pressing body 13 and the first electrode 15 therein, and the second electrode 16 and the third electrode 17 are partially and fixedly embedded in the receiving space.
One end of the pressing body 13 penetrates through the lead through hole 111, moves down or up along the lead through hole 111 in response to an external physical pressing signal, and the other end abuts against the first electrode 15 to transmit pressure to the first electrode 15.
Please refer to fig. 3, which is a cross-sectional view taken along III-III shown in fig. 1. The first electrode 15 is a snap conductive elastic sheet, elastically abuts against the pressing body 13, and includes a central conducting point 151, a first outer abutting surface 153, a second outer abutting surface 155, and a connecting piece 157. The central conducting point 151 elastically contacts the pressing body 13, the first outer contact surface 153 and the second outer contact surface 155 are located on opposite sides of the central conducting point 151, and the first outer contact surface 153 and the second outer contact surface 155 are electrically connected to the second electrode 16. The first outer abutting surface 153, the central conducting point 151 and the second outer abutting surface 155 are connected through the connecting piece 157, the first outer abutting surface 153 is connected with the connecting piece 157 to form an obtuse angle, the second outer abutting surface 155 is connected with the connecting piece 157 to form an obtuse angle, and the first outer abutting surface 153 and the second outer abutting surface 155 are located on the same side of the connecting piece 157.
The second electrode 16 has two ends, one end of the second electrode is embedded and fixed in the accommodating space enclosed by the upper cover 11 and the base 12, and a first conductive terminal 161 and a second conductive terminal 163 are arranged at opposite intervals, and the other end of the second electrode is fixed to the circuit board 19 by welding. The first conductive terminal 161 has an inclined surface corresponding to the first outer abutting surface 153, and the first conductive terminal 161 is electrically connected to the first outer abutting surface 153 by means of the inclined surface. The second conductive terminal 163 has an inclined surface corresponding to the second outer abutting surface 155, and the second conductive terminal 163 is electrically connected to the second outer abutting surface 155 by means of the inclined surface.
The third electrode 17 and the second electrode are disposed at an interval, the pressing body 13 presses down or moves up to make the central conducting point 151 and the third electrode 17 conduct or separate with each other, when the central conducting point 151 and the third electrode 17 conduct with each other, the first electrode 15, the second electrode 16 and the third electrode 17 are connected in series to form a path, and when the central conducting point 151 and the third electrode 17 separate from each other, the first electrode 15, the second electrode 16 and the third electrode 17 are connected in series to form an open circuit.
The third electrode 17 has two ends, one end of the third electrode is embedded and fixed in the accommodating space enclosed by the upper cover 11 and the base 12, and is provided with a fixed conducting end 171, and the other end of the third electrode is welded and fixed on the circuit board 19. The pressing member 13 is pressed or moved upward to make the central conducting point 151 and the fixed conducting end 171 be conducted or separated from each other, when the central conducting point 151 and the fixed conducting end 171 are conducted with each other, the first electrode 15, the second electrode 16 and the third electrode 17 are connected in series to form a passage, and when the central conducting point 151 and the fixed conducting end 171 are separated from each other, the first electrode 15, the second electrode 16 and the third electrode 17 are connected in series to form an open circuit.
It is a further improvement of the above embodiment that the first electrode 15 is not limited to the snap conductive elastic sheet, but may be other conductive elastic bodies, and all that is achieved when the pressing body 13 is pressed down or moved up as an elastic electrical connection element to connect the first electrode 15, the second electrode 16 and the third electrode 17 in series to form a path or an open circuit is included in the invention.
The capacitor circuit 18 is disposed on the circuit board 19, and the capacitor circuit 18 is connected in series with a circuit formed by connecting the first electrode 15, the second electrode 16, and the third electrode 17 in series. In this embodiment, the capacitor circuit 18 is a fixed capacitor, as a further improvement of this embodiment, the capacitor circuit 18 may further include a plurality of fixed capacitors, the plurality of fixed capacitors may be connected in series or in parallel to form a plurality of branches, each branch is connected in series with a circuit formed by connecting the first electrode 15, the second electrode 16, and the third electrode 17 in series, and each branch includes at least one branch switch, and the branch switch may be turned on or off to enable the capacitor circuit 18 to output a capacitance value corresponding to a setting.
Please refer to fig. 4a and 4b, which respectively represent side cross-sectional views of the tact switch 10 in different working states, wherein fig. 4a shows that the pressing body 13 is not pressed, the first electrode 15, the second electrode 16 and the third electrode 17 are connected in series to be in an off-state, the tact switch 10 is in an inactive state, fig. 4b shows that after the pressing body 13 is pressed, the first electrode 15, the second electrode 16 and the third electrode 17 are connected in series to be in a conducting state, and the tact switch 10 is in an active state. When the tact switch 10 works, an external physical acting force acts on the pressing body 13, the pressing body moves down along the lead through hole 111 and transmits the pressure to the first electrode 15, the first electrode 15 elastically deforms, the central conducting point 151 is conducted with the fixed conducting end 171, and the first electrode 15, the second electrode 16 and the third electrode 17 are connected in series to form a passage, that is: the tact switch 10 responds to the external physical pressing signal and triggers the tact switch 10 to be in an activated state; when the external pressure is removed, the first electrode 15 recovers its own deformation, the central conducting point 151 is separated from the fixed conducting end 171, and the first electrode 15, the second electrode 16 and the third electrode 17 are connected in series to form an open circuit, that is: the tact switch 10 responds to the external physical pressing signal and triggers the tact switch 10 to be in an inactivated state.
When the tact switch 10 is set to be inactive, the first electrode 15, the second electrode 16, and the third electrode 17 are connected in series to form an open circuit, and a smaller relative capacitance C1 existing between the first electrode 15 and the third electrode 17 is set; setting the capacitance value of the capacitor circuit 18 to be C0, and setting the capacitance value of C0 to be much larger than C1, the capacitance value of the branch formed by the circuit formed by the first electrode 15, the second electrode 16 and the third electrode 17 in series and the capacitor circuit 18 in series is C1 × C0/(C1+ C0), and considering that the C0 value is small, the capacitance value C is correspondingly small when the tact switch 10 is not activated.
When the tact switch 10 is activated, the first electrode 15, the second electrode 16, and the third electrode 17 are connected in series to form a path, and a circuit formed by connecting the first electrode 15, the second electrode 16, and the third electrode 17 in series and the capacitor circuit 18 in series form a branch having a capacitance value C equal to C0. When the tact switch 10 is switched between the inactive state and the active state, the value of C1 is small, the value of C0 is much larger than the value of C1, and the capacitance value C changes greatly, so that the operating state of the tact switch 10 is determined according to the change amplitude of the capacitance value C, which can also be used as a basis for determining whether the pressing body 13 is pressed down.
In summary, with the application of the external pressure, the pressing body 13 moves back and forth in response to the guiding of the lead through hole 111, the capacitance C changes greatly, and the operating state of the tact switch 10 is determined to be an activated state or an inactivated state according to the change of the capacitance C, and is also used as a basis for determining whether the pressing body 13 is pressed down. That is, under the action of the application of no external pressure, the first electrode 15 and the third electrode 17 are switched between contact and separation, that is, the circuit formed by connecting the first electrode 15, the second electrode 16 and the third electrode 17 in series is switched between on and off, and accordingly, the operating state of the tact switch 10 is adjusted to be continuously switched between the activated state and the inactivated state. When the tact switch 10 is activated, the valid input is considered; when the tact switch 10 is not activated, it is regarded as an invalid input.
In particular, if the tact switch 10 is in poor contact, that is, the central conducting point 151 is very close to the fixed conducting end 171, compared to the case that the tact switch 10 is not activated, the relative capacitance value C1 between the first electrode 15 and the third electrode 17 is significantly increased, and accordingly, the capacitance value C of the branch formed by the circuit formed by the first electrode 15, the second electrode 16 and the third electrode 17 connected in series and the capacitor circuit 18 connected in series is C1C 0/(C1+ C0), and accordingly, the capacitance value C is also greatly changed. In the present embodiment, the operating state of the tact switch 10 and whether or not the pressing body 13 is pressed are determined based on the change in the capacitance value C, so that even if the tact switch 10 is in poor contact, the tact switch 10 is activated due to a large change in the capacitance value C, and is regarded as an effective input.
Compared with the prior art, the utility model provides a dab switch 10 and press the stroke short, press 13 direct action in first electrode 15, thereby make it forms the route or opens circuit to establish ties between first electrode 15, second electrode 16 and the third electrode 17, realizes quick input, and does not have the transmission of multiple physics mechanical force, and the design is more simple and convenient, easy installation.
On the other hand, the second electrode 16 and the third electrode 17 are fixedly arranged, only the first electrode 15 is deformed by physical mechanical force, and the tact switch is high in stability, not easy to damage and simpler and more convenient to install.
Furthermore, the capacitance circuit 18 is arranged, so that the touch switch 10 has a reduced requirement on the contact sensitivity between the first electrode 15 and the third electrode 17, the production cost is reduced, and the input precision is improved.
Please refer to fig. 5, which is a block diagram of an input device according to the present invention. The input device 20 includes a tact switch 21, a capacitance detection module 23, and a control module 25.
The tact switch 21 receives the physical pressing signal and corresponds to the feedback capacitance change signal.
The capacitance detection module 23 detects a capacitance change signal of the tact switch 21, and determines a working state of the tact switch 21 according to a capacitance change result, specifically, the tact switch 21 includes a trigger working state and a non-trigger working state, and when the tact switch 21 is pressed, the tact switch is correspondingly in the trigger state, and when the tact switch 21 is not pressed, the tact switch is correspondingly in the non-trigger state.
The control module 25 receives the judgment result from the capacitance detection module 23, and generates an input signal according to the working state of the tact switch 21. Specifically, when the input device 20 is a keyboard, the operator intends to input the letter a. When the key a is pressed, the capacitance value of the tact switch 21 corresponding to the key a is increased; correspondingly, the capacitance detection module 23 judges that the tact switch 21 is in a trigger state according to the capacitance change value; the control module 25 generates a control signal for inputting the letter a according to the trigger state of the tact switch 21, so as to realize the input operation of the letter a.
In the input device 20, the tact switch 10 disclosed in the first embodiment is used as the tact switch 21.
Please refer to fig. 6, which is a schematic diagram of a three-dimensional structure of a keyboard according to the present invention. The keyboard 30 includes a control panel 31, a capacitance detection module 33, a plurality of tact switches 35 arranged in an array, and a control module 37. The dab switch 35 array is located control panel 31, electric capacity detection module 33 is located control panel 31, and with dab switch 35 electricity and connect, control module 37 basis electric capacity detection module 33's testing result corresponds and produces input signal, wherein, dab switch 35 includes the circuit board, as further improvement, control panel 31 can with the circuit board is integrated into same circuit board. The tact switch 35 is the tact switch 10 disclosed in the first embodiment.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a dabs switch, includes the pressure body, its characterized in that still includes:
the first electrode is elastically abutted with the pressing body and comprises a central conducting point, a first outer abutting surface and a second outer abutting surface, and the first outer abutting surface and the second outer abutting surface are positioned on two opposite sides of the central conducting point;
a second electrode electrically connected to the first outer contact surface and the second outer contact surface;
the pressing body is pressed downwards or moves upwards to enable the central conducting point and the third electrode to be mutually conducted or separated, when the central conducting point and the third electrode are mutually conducted, the first electrode, the second electrode and the third electrode are connected in series to form a passage, and when the central conducting point and the third electrode are mutually separated, the first electrode, the second electrode and the third electrode are connected in series to form an open circuit;
and the capacitor circuit is connected in series with a circuit formed by connecting the first electrode, the second electrode and the third electrode in series.
2. The tact switch according to claim 1, wherein the first electrode is a snap-dome conductive spring.
3. The tact switch of claim 1, wherein the second electrode comprises a first conductive terminal and a second conductive terminal disposed at an interval opposite to each other, the first conductive terminal is electrically connected to the first outer abutting surface, and the second conductive terminal is electrically connected to the second outer abutting surface.
4. The tact switch according to claim 1, wherein the third electrode includes a fixed conducting end, the pressing body presses or moves up to make the central conducting end and the fixed conducting end conduct or separate with each other, when the central conducting end conducts with the fixed conducting end, the first electrode, the second electrode and the third electrode are connected in series to form a path, and when the central conducting end separates from the fixed conducting end, the first electrode, the second electrode and the third electrode are connected in series to form an open circuit.
5. The tact switch according to claim 1, wherein the capacitance circuit comprises a fixed capacitance or a plurality of fixed capacitances, the fixed capacitance or the plurality of fixed capacitances are arranged in series with a circuit formed by the first electrode, the second electrode and the third electrode in series, and the plurality of fixed capacitances are connected in series or in parallel with an output capacitance.
6. The tact switch according to claim 5, wherein the capacitance circuit comprises a plurality of branches, each branch is connected in series with a circuit formed by the first electrode, the second electrode and the third electrode in series, and each branch comprises at least one branch switch, and the branch switch is turned on or off to enable the capacitance circuit to output a corresponding set capacitance value.
7. The tact switch according to claim 1, further comprising a base, wherein two ends of the second electrode are fixedly embedded in the base, one end of the second electrode is fixedly embedded in the base, two ends of the third electrode are fixedly embedded in the base, and one end of the third electrode is fixedly embedded in the base.
8. The tact switch according to claim 7, further comprising a circuit board, wherein the other end of the second electrode is soldered to the circuit board, the other end of the third electrode is soldered to the circuit board, and the capacitor circuit is disposed on the circuit board.
9. An input device, comprising:
the tact switch receives the physical pressing signal and correspondingly feeds back a capacitance change signal;
the capacitance detection module receives a capacitance change signal from the light touch switch, judges the working state of the light touch switch and generates a working state signal;
the control module receives an operating state signal from the capacitance detection module and generates an input signal correspondingly, wherein the tact switch is the tact switch according to any one of claims 1 to 8.
10. The utility model provides a keyboard, includes that control panel, electric capacity detect module, a plurality of array set up dabs switch, control module group, dabs the switch array and locates the control panel, electric capacity detects the module and locates the control panel, and with dabs the switch electricity and connect, control module group basis the testing result of electric capacity detection module corresponds produces input signal, its characterized in that: the tact switch is as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022985094.6U CN214012804U (en) | 2020-12-09 | 2020-12-09 | Tact switch, input device and keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022985094.6U CN214012804U (en) | 2020-12-09 | 2020-12-09 | Tact switch, input device and keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214012804U true CN214012804U (en) | 2021-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022985094.6U Active CN214012804U (en) | 2020-12-09 | 2020-12-09 | Tact switch, input device and keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214012804U (en) |
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2020
- 2020-12-09 CN CN202022985094.6U patent/CN214012804U/en active Active
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