Combined type right cone dual spring and pluggable free-standing electrostatically hold keyboard switchTechnical field
The present invention relates to a kind of spring and switch, more particularly to a kind of combined type right cone dual spring and pluggable stand alone type are quietElectric capacity keyboard switch.
Background technology
Office at present and gamepad are distinguished with keyboard switch two major classes and a group：Two major classes are membrane keyboard and machineTool keyboard, a group are silica gel bowl direct capacitance keyboards.The silver paste contact of first major class thin-film keyboard switch easily aoxidizes, silica gel bowlFatiguability；The same oxidation problems of hard contact of second major class mechanical keyboard switch, it requires higher, dust to use environmentAnd liquid is the lethal factor that mechanical switch service life shortens；3rd group is silica gel bowl direct capacitance keyboard switch, and it is usedLife-span is also limited by silica gel bowl service life, and it is extremely inconvenient that switch is changed in repair demolition.In summary, the keyboard of prior artSwitch has following deficiency：Physical contact is oxidizable, elastic silica gel fatiguability, and easy care is not changed and actual life is shorter.
The content of the invention
The technical problems to be solved by the invention are overcome the deficiencies in the prior art, there is provided a kind of simple in construction, installationIt is convenient, be favorably improved the combined type right cone dual spring of production efficiency, while additionally provide it is a kind of it is simple in construction, easy for installation,Easily changeable pluggable free-standing electrostatically holds keyboard switch.
The technical solution adopted in the present invention is：The combined type right cone dual spring includes keycap push rod back-moving spring and coneThe bottom with the volute spring behind the top of the volute spring is entangled in shape spring, the bottom of the keycap push rod back-moving springConnection.
Further, the keycap push rod back-moving spring is integrally formed with the volute spring.
Further, the combined type right cone dual spring includes connection strap, and the bottom of the keycap push rod back-moving spring passes throughThe connection strap is connected with the volute spring, and the bottom of the volute spring is less than the bottom of the keycap push rod back-moving springPortion.
Further, keycap push rod back-moving spring, the volute spring and the connection strap are integrally formed.
Further, the keycap push rod back-moving spring is straight compression spring.
The pluggable free-standing electrostatically, which holds keyboard switch, includes combined type right cone dual spring, keyseat, keycap push rod and limitPosition card, the keyseat is interior to be provided with accommodation space；The keycap push rod is located in the accommodation space and slided with the keyseatConnection, while the top of the keycap push rod is passed to the top of the keyseat from the accommodation space；In the spacing cardProvided with the resigning hole being adapted with the combined type right cone dual spring bottom, the combined type right cone dual spring is located at the keycapBetween push rod and the spacing card, the spacing card is by the lower part of the keycap push rod, the double bullets of the combined type right coneSpring is encapsulated in the accommodation space.
Further, the section of the volute spring bottom and the bottom surface of the spacing card are in the same plane.
Further, the combined type right cone dual spring includes connection strap, and the bottom of the keycap push rod back-moving spring passes throughThe connection strap is connected with the volute spring, and the bottom of the volute spring is less than the bottom of the keycap push rod back-moving springPortion, the inwall of the resigning hole of the spacing card are provided with the slot to make way being adapted with the connection strap, the limiting cardSpacing preiection is provided with above piece, the keycap push rod back-moving spring is socketed in the spacing preiection, and the connection strap is located atThe slot to make way, so that the bottom of the volute spring is absorbed in the resigning hole, and the volute spring bottom is cutFace and the bottom surface of the spacing card are in the same plane.
Further, several ear cards being adapted with keyboard installing plate are provided with the outside of the keyseat.
Further, the pluggable free-standing electrostatically holds keyboard switch and also includes being located at the electrostatic below the spacing cardHold sensing PCB pole plates, waterproof is provided between the non-inductive area of direct capacitance sensing PCB pole plates below the spacing cardSealing plate；The sidepiece of the keycap push rod sets restraining position ring block, and the spacing ring is withstood on the inwall of the accommodation space, describedVibration damping cushion rubber is provided between the inwall of spacing ring and the accommodation space.
The beneficial effects of the invention are as follows：Because the combined type right cone dual spring uses modular design, the combined typeRight cone dual spring includes keycap push rod back-moving spring and volute spring, and the cone is entangled in the bottom of the keycap push rod back-moving springBottom behind the top of shape spring with the volute spring is connected.So the present invention is simple in construction, easy for installation, relative to resetThe product that spring and volute spring are installed separately, the combined type right cone dual spring do not easily cause the loss of part, help to carryHigh efficiency is high.
Further, since the combined type right cone dual spring includes connection strap, the bottom of the keycap push rod back-moving spring leads toCross the connection strap with the volute spring to be connected, the bottom of the volute spring is less than the keycap push rod back-moving springBottom, so, the combined type right cone dual spring can meet the installation requirement and operating accuracy of corresponding product well.
Pluggable, freestanding design is used because the pluggable free-standing electrostatically holds keyboard switch, it is described pluggableFree-standing electrostatically, which holds keyboard switch, includes combined type right cone dual spring, keyseat, keycap push rod and spacing card, is set in the keyseatThere is accommodation space；The keycap push rod is located in the accommodation space and is slidably connected with the keyseat, while the keycap pushes awayThe top of bar is passed to the top of the keyseat from the accommodation space；The spacing card is provided with and the combined type right coneThe resigning hole that dual spring bottom is adapted, the combined type right cone dual spring be located at the keycap push rod and the spacing card itBetween, the lower part of the keycap push rod, the combined type right cone dual spring are encapsulated in the accommodation space by the spacing cardIt is interior.So the pluggable free-standing electrostatically appearance keyboard switch is simple in construction, can when in use as independent elementSeparately installed and dismounting, easily facilitates replacing.
Brief description of the drawings
Fig. 1 is the structural representation of the keyseat 2；
Fig. 2 is the structural representation of the keycap push rod 3；
Fig. 3 is the structural representation of the combined type right cone dual spring 1；
Fig. 4 is the structural representation of the spacing card 4；
Fig. 5 is the explosive view that the pluggable free-standing electrostatically holds keyboard switch；
Fig. 6 is the combining structure schematic diagram that the pluggable free-standing electrostatically holds keyboard switch.
Embodiment
As shown in figure 3, in the present embodiment, the combined type right cone dual spring 1 includes the He of keycap push rod back-moving spring 11Volute spring 12, the bottom of the keycap push rod back-moving spring 11 entangle behind the top of the volute spring 12 with the Conical ProjectileThe bottom connection of spring 12.
In the present embodiment, the keycap push rod back-moving spring 11 is integrally formed with the volute spring 12.
In the present embodiment, the combined type right cone dual spring 1 includes connection strap 13, the keycap push rod back-moving spring 11Bottom be connected by the connection strap 13 with the volute spring 12, the bottom of the volute spring 12 is less than the keycapThe bottom of push rod back-moving spring 11.
In the present embodiment, the keycap push rod back-moving spring 11, the volute spring 12 and the one of the connection strap 13Shaping.
In the present embodiment, the keycap push rod back-moving spring 11 is straight compression spring.
As shown in Figures 1 to 6, in the present embodiment, the pluggable free-standing electrostatically, which holds keyboard switch, includes combined typeRight cone dual spring 1, keyseat 2, keycap push rod 3 and spacing card 4, the keyseat 2 is interior to be provided with accommodation space 21；The keycap push rod3 are slidably connected in the accommodation space 21 and with the keyseat 2, while the top of the keycap push rod 3 houses from describedSpace 21 is passed to the top of the keyseat 2；The spacing card 4 is provided with and the bottom phase of combined type right cone dual spring 1The resigning hole 41 of adaptation, the combined type right cone dual spring 1 are described between the keycap push rod 3 and the spacing card 4The lower part of the keycap push rod 3, the combined type right cone dual spring 1 are encapsulated in the accommodation space 21 by spacing card 4.
In the present embodiment, the section of the bottom of volute spring 12 and the bottom surface of the spacing card 4 are put down positioned at sameOn face.
In the present embodiment, the combined type right cone dual spring 1 includes connection strap 13, the keycap push rod back-moving spring 11Bottom be connected by the connection strap 13 with the volute spring 12, the bottom of the volute spring 12 is less than the keycapThe bottom of push rod back-moving spring 11, the inwall of the resigning hole 41 of the spacing card 4 are provided with and the phase of connection strap 13The slot to make way 42 of adaptation, spacing preiection 43 is provided with above the spacing card 4, the keycap push rod back-moving spring 11 is socketedIn the spacing preiection 43, the connection strap 13 is located at the slot to make way 42, so that the bottom of the volute spring 12 is absorbed inIn the resigning hole 41, and the section of the bottom of the volute spring 12 and the bottom surface of the spacing card 4 are generally aligned in the same planeOn.
In the present embodiment, the outside of the keyseat 2 is provided with several ear cards 22 being adapted with keyboard installing plate, canIt is convenient the pluggable free-standing electrostatically is held into keyboard switch to be fixed on the iron plate of keyboard, safeguard that this switch also ten is replaced in dismountingIt is convenient to divide, and this switch has warm connection function.
In the present embodiment, the pluggable free-standing electrostatically holds keyboard switch and also includes being located under the spacing card 4The direct capacitance sensing PCB pole plates 5 of side, the non-inductive area of the lower section of spacing card 4 and direct capacitance sensing PCB pole plates 5 itBetween be provided with waterproof sealing plate；The sidepiece of the keycap push rod 3 sets restraining position ring block 31, and the spacing ring 31 withstands on described accommodatingOn the inwall in space 21, vibration damping cushion rubber is provided between the inwall of the spacing ring 31 and the accommodation space 21.
The course of work that the pluggable free-standing electrostatically holds keyboard switch is as follows：The keycap push rod 3 is moved down intoDuring precalculated position, the combined type right cone dual spring 1 has certain compression displacement, when the taper of the combined type right cone dual springWhen spring 1 is compressed to precalculated position by the keycap push rod 3, the direct capacitance sensing PCB pole plates 5 will be sensed described in compressionThe increase for the static capacity that the volute spring 12 of combined type right cone dual spring 1 is sensed, when increased static capacity reaches predeterminedOpening threshold values when switch connection；When unclamping the keycap push rod 3, the combined type right cone dual spring 1 simultaneously reset and toThe keycap push rod 3 is above pushed away, the volute spring 12 of the combined type right cone dual spring 1 resets, and the direct capacitance senses PCB pole plates5 sense the reduction for the static capacity that the reset strap of volute spring 12 comes, and are opened when static capacity is reduced to predetermined disconnection threshold valuesShut-off is opened.Thus " logical → disconnected " circulation of deuterzooid switch " press → unclamp " is completed.
The present invention is applied to the technical field of direct capacitance keyboard switch.
Although embodiments of the invention are described with practical solution, the limit to implication of the present invention is not formedSystem, for those skilled in the art, all it is according to modification of this specification to its embodiment and with the combination of other schemesObviously.