CN220439466U - Combined double-conduction key switch and keyboard - Google Patents
Combined double-conduction key switch and keyboard Download PDFInfo
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- CN220439466U CN220439466U CN202320949826.7U CN202320949826U CN220439466U CN 220439466 U CN220439466 U CN 220439466U CN 202320949826 U CN202320949826 U CN 202320949826U CN 220439466 U CN220439466 U CN 220439466U
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- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 22
- ZHBBDTRJIVXKEX-UHFFFAOYSA-N 1-chloro-2-(3-chlorophenyl)benzene Chemical compound ClC1=CC=CC(C=2C(=CC=CC=2)Cl)=C1 ZHBBDTRJIVXKEX-UHFFFAOYSA-N 0.000 description 10
- 230000003068 static effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000001960 triggered effect Effects 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Abstract
The utility model discloses a combined double-conduction key switch, which comprises a shell, wherein a mechanical conduction assembly, a conduction core for triggering the conduction of the mechanical conduction assembly and an elastic piece for driving the conduction core to reset are respectively arranged in the shell; the combined double-conduction key switch has the advantages that in the initial state, the light conduction assembly is not electrified, the interference of other optical signals is avoided, the input and output signals are wrong, the electric quantity is not consumed, the light conduction assembly is electrified and started only when the key is pressed, the starting time is short, the interference of other optical signals is not easy, and the power consumption is obviously reduced. The utility model also discloses a keyboard using the combined double-conduction key switch.
Description
Technical Field
The utility model relates to the technical field of keyboards, in particular to a combined double-conduction key switch and a keyboard.
Background
The optical axis key switch is a novel switch in recent years, and is based on the traditional mechanical key axis technology, a brand new optical induction identification technology is added, and the problems of the traditional contact mechanical switch are solved by replacing the traditional contact pulling piece with an optical induction component. The optical axis technology adopts infrared optical induction, no contact point and no abrasion are caused during conduction, meanwhile, optical mechanical signals are optical pulses, the output waveform is clean and zero noise, and the problem of contact shake is completely eliminated.
However, in the existing optical axis key, the optical sensing component is always in a working state after being electrified, so that the problem of high power consumption exists, meanwhile, an optical signal is easily affected by external light, the problems of light crosstalk and signal interference occur, the switching-on and switching-off accuracy is low, even the phenomenon of wrong switching-on can occur, for an optical axis keyboard using the optical axis key, the optical axis keyboard is composed of a plurality of optical sensing components, the overall power consumption is obviously increased, and particularly for a wireless optical axis keyboard, the problem of short battery power consumption time exists, and the battery is often required to be replaced or charged, so that the use is inconvenient.
Disclosure of Invention
In view of the above-mentioned shortcomings, the present utility model aims to provide a combined double-conduction key switch, in which in an initial state, a light conduction assembly is not electrified, and is not interfered by other light signals, so that input and output signals are wrong, and electric quantity is not consumed, and only when a conductive core is pressed, the light conduction assembly is electrified and started, the starting time is short, the light conduction assembly is not easily interfered by other light signals, and the power consumption is obviously reduced.
The technical scheme adopted by the utility model for achieving the purpose is as follows: the combined double-conduction key switch comprises a shell, wherein a mechanical conduction assembly, a conduction core used for triggering the conduction of the mechanical conduction assembly and an elastic piece used for driving the conduction core to reset are respectively arranged in the shell, an opening used for enabling the upper end of the conduction core to extend out is formed in the shell, the combined double-conduction key switch further comprises a conduction assembly, the conduction assembly is electrically connected with the mechanical conduction assembly through a PCB, and the conduction of the mechanical conduction assembly is triggered by pressing the conduction core so as to enable the conduction assembly to be electrified, so that the light conduction is realized.
As a further improvement of the utility model, the light-conducting assembly comprises an infrared light-emitting element and a photosensitive receiving element which are oppositely arranged.
As a further improvement of the utility model, the mechanical conduction assembly comprises a static piece and a dynamic piece.
As a further improvement of the utility model, a stationary contact is arranged on the stationary plate, and a movable contact corresponding to the stationary contact is arranged on the movable plate.
As a further improvement of the present utility model, at least one contact bump contacting the guide core is formed on the moving plate.
As a further improvement of the utility model, at least one conduction trigger block contacted with the contact convex blocks is arranged on one side of the guide core, and a groove for inserting the upper end of the elastic piece is arranged at the lower end of the guide core.
As a further improvement of the utility model, a guide table is arranged in the shell and below the guide core, and the lower end of the elastic piece is sleeved with the periphery of the guide table.
As a further improvement of the utility model, the light-conducting component is arranged on the outer side of the bottom of the shell, the inner side of the shell or the side edge of the shell.
As a further improvement of the utility model, a light guide column is arranged outside the bottom of the shell, a light guide opening which is penetrated from left to right is formed on the light guide column, the infrared light emitting element and the photosensitive receiving element are positioned at two sides of the light guide column, and the infrared light emitting element emits light to the photosensitive receiving element through the light guide opening.
A keyboard comprises a plurality of combined double-conduction key switches.
The beneficial effects of the utility model are as follows: according to the combined double-conduction key switch, the light-conduction assembly and the mechanical conduction assembly are electrically connected through the PCB, and in an initial state, the light-conduction assembly is not electrified and cannot be started, and cannot be interfered by other optical signals, so that input and output signals are wrong, electric quantity is not consumed, the light-conduction assembly is electrified and started to work only when the light-conduction core is pressed and the mechanical conduction assembly is triggered to conduct, the starting time of the light-conduction assembly is short, the light-conduction assembly is not easily interfered by other optical signals, and the overall power consumption is obviously reduced;
the combined double-conduction key switch is used as a key switch of the keyboard, so that the whole power consumption of the keyboard can be effectively reduced, and the use time of a battery is obviously prolonged especially for a wireless keyboard.
The foregoing is a summary of the utility model and is further defined by the following detailed description of the utility model when read in conjunction with the accompanying drawings.
Drawings
FIG. 1 is an exploded view of the present utility model;
FIG. 2 is a schematic diagram of a guide core according to the present utility model;
FIG. 3 is a schematic view of the bottom structure of the guide core according to the present utility model;
FIG. 4 is a schematic diagram showing the structure of the middle conductive core and the mechanical conductive component of the present utility model
Fig. 5 is a schematic structural diagram of the light guide assembly and the PCB board in the present utility model;
FIG. 6 is a schematic diagram of the structure of the present utility model;
FIG. 7 is a schematic view of the bottom structure of the base of the present utility model;
FIG. 8 is a schematic diagram of the mechanical conduction assembly of the present utility model;
FIG. 9 is a schematic view of a base structure according to the present utility model;
FIG. 10 is a cross-sectional view of a first embodiment of the utility model;
FIG. 11 is a cross-sectional view of a second embodiment of the present utility model;
fig. 12 is a schematic structural diagram of a base in a third embodiment of the present utility model.
Detailed Description
In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description of the specific embodiments of the present utility model is given with reference to the accompanying drawings and preferred embodiments.
Example 1
Referring to fig. 1 to 7, an embodiment of the present utility model provides a combined double-conduction key switch, which includes a housing 1, a mechanical conduction assembly 2, a conductive core 3 for triggering the conduction of the mechanical conduction assembly, and an elastic member 4 for driving the conductive core 3 to reset are respectively disposed in the housing 1, an opening for extending one end of the conductive core 3 is disposed on the housing 1, the combined double-conduction key switch further includes a conductive assembly 5, the conductive assembly 5 is electrically connected with the mechanical conduction assembly 2 through a PCB board 6, and the conductive assembly 2 is triggered to be conducted by pressing the conductive core 3 so as to enable the conductive assembly 5 to be electrified, thereby realizing the optical conduction.
Specifically, the housing 1 includes a base 11 and an upper cover 12 disposed above the base 11.
Specifically, the light conducting component 5 and the mechanical conducting component 2 are electrically connected through a circuit on the PCB board 6.
The working principle of the combined double-conduction key switch of the embodiment is as follows: in an initial natural state, the guide core 3 is not pressed, the mechanical conduction assembly 2 is not conducted, a circuit on the PCB 6 is in an off state, the light conduction assembly 5 is not electrified and cannot start working, and the combined double-conduction key switch is in an off state; when the guide core 3 is pressed, the guide core 3 moves along the pressing direction to trigger the mechanical conduction assembly 2 to conduct, meanwhile, the elastic piece 4 is compressed under the pressing of the guide core 3, at the moment, a circuit on the PCB 6 forms a closed loop, the light conduction assembly 5 is electrified, the light conduction assembly 5 is started to work and conduct after being electrified, and the combined double-conduction key switch is in a conducting state, so that key input is realized; the pressing force acting on the guide core 3 is released, the guide core 3 is reset to an initial state under the action of the elastic restoring force of the elastic piece 4, the mechanical conduction assembly 2 is disconnected, a circuit on the PCB 6 is disconnected, the light conduction assembly 5 is not electrified and disconnected, and therefore, when in the initial state, the light conduction assembly 5 is not electrified and cannot be started, interference of other optical signals is avoided, errors of input and output signals are caused, electric quantity is not consumed, only when the guide core 3 is pressed and the mechanical conduction assembly 2 is triggered to conduct, the light conduction assembly 5 is electrified and started to work, the starting time of the light conduction assembly 5 is short, interference of other optical signals is not easy to occur, and the overall power consumption is obviously reduced.
Specifically, the light-transmitting assembly 5 includes an infrared light emitting element 51 and a photosensitive receiving element 52 disposed opposite to each other. In this embodiment, the infrared light emitting element 51 and the photosensitive receiving element 52 are connected in parallel and then connected to the circuit on the PCB board 1, when the mechanical conduction assembly 2 is not turned on, the circuit on the PCB board 1 is in an off state, the infrared light emitting element 51 and the photosensitive receiving element 52 are not energized, the infrared light emitting element 51 cannot emit light, the photosensitive receiving element 52 does not receive light, at this time, no signal is given to the PCB board 6 by the photosensitive receiving element 52, and the PCB board 6 defaults to the key switch off state; when the mechanical conduction assembly 2 is conducted, a circuit on the PCB 6 is closed to form a closed loop, the infrared light emitting element 51 and the photosensitive receiving element 52 are electrified and started at the same time, the infrared light emitting element 51 emits light to the photosensitive receiving element 52, the photosensitive receiving element 52 receives the light and then generates a signal to the PCB 6, and the PCB 6 defines the signal as key switch conduction.
Specifically, the mechanical conduction assembly 2 includes a stationary plate 21 and a movable plate 22.
More specifically, a stationary contact 211 is provided on the stationary plate 21, and a movable contact 221 corresponding to the stationary contact 211 is provided on the movable plate 22.
In this embodiment, the stationary plate and the moving plate are located at the side of the guide core, and the stationary plate and the moving plate are disposed opposite to each other from left to right, so at least one contact bump 222 contacting the guide core 3 is formed on the moving plate 22. Meanwhile, at least one conductive trigger block 31 contacting the contact bump 222 is provided at one side of the conductive core 3, and an inclined surface 311 is formed on a side of the conductive trigger block 31. When the guide core 3 is not pressed and is in a natural state, the contact lug 222 of the movable plate 22 is pushed outwards by the conduction trigger block 31, so that the movable plate 22 is elastically deformed, the movable contact 221 on the movable plate 22 is separated from the stationary contact 211 on the stationary plate 21, the mechanical conduction assembly 2 is in a disconnection state, the conduction assembly 5 is not electrified, and the combined double-conduction key switch is disconnected; when the guide core 3 is pressed to move downwards, the conduction trigger block 31 moves downwards, after the guide core 3 moves downwards for a certain period of travel, the conduction trigger block 31 is separated from the contact bump 222 on the moving plate 22 and contacts the inclined surface 311, the outward acting force applied to the moving plate 22 is reduced, so that the moving plate 22 is elastically reset, the moving contact 221 on the moving plate 22 is contacted with the static contact 211 on the static plate 21, the mechanical conduction assembly 2 is in a conduction state, at this time, the conduction assembly 5 is electrified, that is, the infrared light emitting element 51 and the photosensitive receiving element 52 are electrified simultaneously, the infrared light emitting element 51 emits light to the photosensitive receiving element 52, the photosensitive receiving element 51 generates a signal to the PCB 6 after receiving the light, and the PCB 6 defines the signal as the conduction of the combined double-conduction key switch.
Of course, in other embodiments, the static plate 21 and the moving plate 22 may be disposed below the guide core 3, and the moving plate 22 and the static plate 21 may be disposed opposite to each other vertically, and the moving plate 22 may be in a dome-shaped structure, so that when the guide core 3 is pressed, the guide core 3 presses the moving plate 22 downward, so that the moving plate 22 is elastically deformed and finally contacts with the static plate 21 below, and the moving plate 22 is connected to the static plate 21, so that the mechanical conduction assembly 2 is conducted.
In this embodiment, the light-guiding assembly 5 is disposed outside the bottom of the housing, a light-guiding column 13 is disposed outside the bottom of the housing 1, a light-guiding opening 131 is formed on the light-guiding column 13, the infrared light-emitting element 51 and the photosensitive receiving element 52 are disposed on two sides of the light-guiding column 13, and the infrared light-emitting element 51 emits light to the photosensitive receiving element 52 through the light-guiding opening 131. Thus, the light emitted by the infrared light emitting element 51 is intensively irradiated on the photosensitive receiving element 52 through the light guide opening 131, and the intensity of the light received by the position of the photosensitive receiving element 52 opposite to the light guide opening 131 is high, so that the sensitivity of the light received by the photosensitive receiving element 52 and the accuracy of signal output are improved, the influence of other light is reduced, and interference signals are avoided.
In order to prevent the elastic element 4 from separating from the guide core 3 and ensure that the guide core 3 acts on the mechanical conduction assembly 2 accurately, a groove 32 for inserting the upper end of the elastic element 4 is arranged at the lower end of the guide core 3; meanwhile, a guide table 14 is arranged in the shell 1 and below the guide core 3, and the lower end of the elastic piece 4 is sleeved with the periphery of the guide table 12.
In this embodiment, the elastic member 4 is a spring.
In this embodiment, the lower end of the guide core has a guide post 33, and a guide insertion hole 141 into which the guide post 33 is inserted is formed in the guide table. By the cooperation of the guide post 33 and the guide insertion hole 141, the guide core 3 is further ensured to move in the vertical direction, so that the guide core 3 precisely acts on the mechanical conduction assembly 5.
When assembling, the infrared light emitting element 51 and the photosensitive receiving element 52 can be stuck on the PCB 6 in a surface mounting mode, and then other parts of the combined double-conduction key switch are mounted on the PCB 6, so that the assembly is convenient, and the whole structure is compact.
Example two
As shown in fig. 11, the main difference between the second embodiment and the first embodiment is that the light guide assembly is disposed inside the housing 1. The infrared light emitting element 51 and the photosensitive receiving element 52 protrude from the bottom of the housing 1 through pins.
Example III
As shown in fig. 12, the main difference between the first and second embodiments is that the light guide assembly is disposed outside the housing 1.
Example IV
The fourth embodiment discloses a double-conduction keyboard, which comprises any one of the combination double-conduction key switches from the first embodiment to the third embodiment. Compared with the traditional light-conducting keyboard, the whole power consumption of the keyboard of the embodiment is obviously reduced, and particularly for a wireless keyboard, the battery service time is longer.
The foregoing is merely a preferred embodiment of the present utility model, and the technical scope of the present utility model is not limited to the above embodiments, so that other structures using the same or similar technical features as those of the above embodiments of the present utility model are all within the scope of the present utility model.
Claims (10)
1. The combined double-conduction key switch comprises a shell, wherein a mechanical conduction assembly, a conduction core used for triggering the conduction of the mechanical conduction assembly and an elastic piece used for driving the conduction core to reset are respectively arranged in the shell, and an opening for extending one end of the conduction core is arranged on the shell.
2. The combination double-on key switch of claim 1, wherein the light-on assembly comprises an infrared light emitting element and a light-sensitive receiving element arranged opposite to each other.
3. The combination double-turn-on key switch of claim 1, wherein the mechanical conduction assembly comprises a stationary plate and a movable plate.
4. A combination double-conduction key switch according to claim 3, wherein a stationary contact is provided on the stationary plate, and a movable contact corresponding to the stationary contact is provided on the movable plate.
5. A combination double-on key switch according to claim 3, wherein at least one contact protrusion contacting the guide core is formed on the moving plate.
6. The combination type double-conduction key switch according to claim 5, wherein at least one conduction trigger block contacting with the contact bump is arranged on one side of the guide core, and a groove for inserting the upper end of the elastic member is arranged at the lower end of the guide core.
7. The combination type double-conducting key switch according to claim 6, wherein a guide table is arranged in the shell and below the guide core, and the lower end of the elastic piece is sleeved with the periphery of the guide table.
8. The combination double-on key switch of claim 2, wherein the light-on assembly is disposed on the bottom outside of the housing, the inside of the housing, or the side of the housing.
9. The combination type double-conduction key switch according to claim 8, wherein a light guide column is arranged on the outer side of the bottom of the shell, a light guide opening penetrating left and right is formed on the light guide column, the infrared light emitting element and the photosensitive receiving element are located on two sides of the light guide column, and the infrared light emitting element emits light to the photosensitive receiving element through the light guide opening.
10. A keyboard comprising a plurality of combined double-on key switches according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320949826.7U CN220439466U (en) | 2023-04-24 | 2023-04-24 | Combined double-conduction key switch and keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320949826.7U CN220439466U (en) | 2023-04-24 | 2023-04-24 | Combined double-conduction key switch and keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220439466U true CN220439466U (en) | 2024-02-02 |
Family
ID=89686834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320949826.7U Active CN220439466U (en) | 2023-04-24 | 2023-04-24 | Combined double-conduction key switch and keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220439466U (en) |
-
2023
- 2023-04-24 CN CN202320949826.7U patent/CN220439466U/en active Active
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