CN107393758B - Thin switch without protrusion pressing - Google Patents
Thin switch without protrusion pressing Download PDFInfo
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- CN107393758B CN107393758B CN201710720714.3A CN201710720714A CN107393758B CN 107393758 B CN107393758 B CN 107393758B CN 201710720714 A CN201710720714 A CN 201710720714A CN 107393758 B CN107393758 B CN 107393758B
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- contact
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- hole
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/84—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/04—Cases; Covers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/10—Bases; Stationary contacts mounted thereon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/20—Driving mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
- H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
- H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
- H01H13/7065—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys characterised by the mechanism between keys and layered keyboards
- H01H13/7073—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys characterised by the mechanism between keys and layered keyboards characterised by springs, e.g. Euler springs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2215/00—Tactile feedback
- H01H2215/03—Sound
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2223/00—Casings
- H01H2223/034—Bezel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2227/00—Dimensions; Characteristics
- H01H2227/036—Minimise height
Landscapes
- Push-Button Switches (AREA)
Abstract
The invention discloses a bulge-free press thin switch, which is connected with a circuit board on a keyboard, and comprises: the upper surface of the pressing part is flush with the upper surface of the surface cover; the base is connected with the face cover in a riveting and pressing mode, a contact elastic sheet accommodating groove is formed in the center of the base, and a groove hole communicated with the contact elastic sheet accommodating groove is formed in one side of the base; the sound piece is positioned at the upper part of the slotted hole of the base; the contact elastic sheet is horizontally arranged in the contact elastic sheet accommodating groove, and the top of the contact elastic sheet is lower than the upper surface of the base. The thin switch without the protrusion pressing body has the advantages of being thin in thickness, good in use experience and the like.
Description
Technical Field
The invention relates to a thin switch, in particular to a protrusion-free press-latch thin switch.
Background
The keyboard is a computer peripheral device, and the keyboard is provided with a plurality of keys, and signals or instructions are input and transmitted to a computer by pressing the keys. The present thin mechanical keyboard, if the name of the invention is a thin mechanical keyboard for portable computers, chinese patent application No. 2015100926090, discloses a thin mechanical keyboard for portable computers, comprising a circuit board, scissor legs, a key cap, a base, a push switch, a spring, a housing, etc., wherein the circuit board is additionally provided with a reinforced iron plate, the reinforced iron plate is provided with a through slot and a plurality of clamping parts located at the corners, the scissor legs are provided with a plurality of first positioning parts and second positioning parts, the first positioning parts are clamped in the clamping parts in a vertically movable manner, the scissor legs are hollow, the key cap is provided with a plurality of buckling parts, and the buckling parts are buckled in the second positioning parts; when pressing certain stroke, feel and fourth terminal emergence action, produce the sound that upwards strikes the shell, simultaneously when pressing the key cap, the scissors foot keeps the balance of whole key cap, does not block the key, and switch direct mount passes and consolidates iron plate on the PCB board, uses scissors foot structure to keep the balance of key cap, include casing, base and the vertical sound spare and the contact shell fragment that set up in the base according to sincere switch. This slim laptop mechanical keyboard passes through the scissors foot and connects the key cap respectively and consolidates iron plate, keeps the balance of key cap by the scissors foot at the in-process of pushing down the key cap to realize hitting with the contact shell fragment that the vertical setting is in the base and hit and play sound and circuit and switch on, this kind of vertical setting sound spare and contact shell fragment are arranged in and are had according to sincere base in, have following not enough: 1. the thickness of the pressing piece is large, and the contact elastic piece is vertically arranged, so that the thickness is difficult to reduce, and the thickness of the base is increased, so that the whole thickness of the whole switch is large, and the switch does not accord with the current thinning trend; 2. the sounding piece of the key switch is arranged on one side of the base, when a user applies pressure, the stress is uneven in the pressing and pressing process, parts are easy to damage, and the service life of the key switch is further influenced; 3. the contact is positioned at the lower part of the contact piece, and the reaction is slow in the pressing process, and the sensitivity is poor.
Disclosure of Invention
The invention provides a bulge-free press thin switch which has simple structure and thin integral thickness, can generate the key sound and the fluctuation feeling, increases the use feeling of a user, is convenient to assemble and can prolong the service life of a face cover.
The invention can be realized by the following technical scheme:
a bump-less press-latch thin switch, which is connected to a circuit board on a keyboard, comprising:
the upper surface of the pressing part is flush with the upper surface of the surface cover, and the pressing part covers the reset piece positioned below the pressing part;
the base is connected with the face cover in a riveting and pressing mode, a contact elastic sheet accommodating groove is formed in the center of the base, and a groove hole communicated with the contact elastic sheet accommodating groove is formed in one side of the base;
the sound piece is positioned at the upper part of the slotted hole of the base;
the contact elastic sheet is horizontally arranged in the contact elastic sheet accommodating groove, and the top of the contact elastic sheet is lower than the upper surface of the base.
The invention has no protruding to press the thin type switch of the sincere mainly by the face cover, base and locate at base and face between cover loud sound piece and contact the shell fragment to form, its integral spare part form few, simple in construction; the base is connected with the face cover in a riveting and pressing mode, and the assembly is quick and convenient; the center of the base is provided with a contact elastic sheet accommodating groove, the top of the contact elastic sheet is lower than the upper surface of the base after the contact elastic sheet is horizontally arranged in the contact elastic sheet accommodating groove, the space of the base is reasonably utilized, the contact elastic sheet is arranged in the contact elastic sheet accommodating groove on the base and is lower than the upper part of the base, and the influence of the contact elastic sheet on the whole thickness of the keyboard is effectively reduced; on the other hand, the pressing part is arranged on the surface cover, the upper surface of the pressing part is flush with the upper surface of the surface cover, the pressing part is arranged on the surface cover to replace a traditional common pressing system, so that the thickness of the surface cover can be greatly reduced, the overall thickness of the keyboard is greatly reduced, and the keyboard is guaranteed to be ultra-thin; the arrangement of the sound piece on the upper part of the slotted hole on one side of the base ensures that the sound piece can upwards strike the face cover to generate sound in the use process of the keyboard, thereby increasing the use feeling of a user.
As one of the preferable schemes of the bump-free pressing and catching thin switch, the base is further provided with a reset piece, the reset piece is a reset torsion spring, the reset torsion spring is a polygonal torsion spring with an opening, each corner of the torsion spring is provided with a first positioning hole, two ends of the torsion spring are provided with an arched bulge which is arched upwards, and the arched bulge is away from the end by a certain distance.
As a second preferred embodiment of the non-protrusion pressing thin switch, a reset piece is further arranged on the base, the reset piece is a reset elastic sheet, the number of the reset elastic sheets is two, the two reset elastic sheets are respectively located on two sides of the slotted hole, the reset elastic sheet comprises a reset bottom plate with a reset elastic sheet positioning hole, an S-shaped elastic sheet is arranged on the upper portion of the reset bottom plate, the outer end portion of the bottom of the S-shaped elastic sheet is connected with the outer side of the reset bottom plate, and the inner end portion of the upper portion of the S-shaped elastic sheet abuts against the surface cover.
Further, the contact shell fragment includes the contact shell fragment body, one side of contact shell fragment body is location portion, location portion is equipped with the contact shell fragment locating hole, and the opposite side is the conduction portion, the conduction portion is unsettled setting, the conduction portion is the cavity setting, including the contact shell fragment framework and switch on the piece, the piece that leads is located the cavity, the piece that leads passes through arc connecting portion and is connected with the contact piece framework.
Furthermore, a contact spring piece positioning column matched with the contact spring piece positioning hole and an arc-shaped supporting part used for supporting the suspended conduction part are arranged in the contact spring piece accommodating groove on the base, and a conduction hole for conducting the conduction piece and a static terminal located at the bottom of the base in a contact mode is formed in the middle of the bottom of the contact spring piece accommodating groove.
Furthermore, base positioning holes corresponding to the first positioning holes and used for positioning the sounding parts are arranged on the base, which is in contact with the elastic sheet accommodating groove, on the base, two base positioning holes on two sides of the slotted hole are used for positioning the sounding parts, and other base positioning holes correspond to the first positioning holes.
Furthermore, a sound guide column is arranged on the base between the groove hole and the base positioning hole on one side, a sound guide inclined plane is arranged on one side, corresponding to the sound, of the sound guide column, and the guide inclined plane is in contact connection with the end portion of the sound.
Furthermore, the base is provided with two reset elastic sheet accommodating grooves which are oppositely distributed at the outer parts of two sides of the groove hole, reset elastic sheet positioning columns are arranged in the reset elastic sheet accommodating grooves, and reset elastic sheet positioning holes matched with the reset elastic sheet positioning columns are arranged on the reset bottom plate of the reset elastic sheets.
Further, the face lid includes the face and covers the frame and be located the inside splenium of pressing of face lid frame, leave the clearance between pressing splenium and the face and covering the frame, it is equipped with the contact shell fragment contact that is used for pressing the contact shell fragment to press splenium bottom, press the splenium to be close to one side of the sound piece through being equipped with the extrusion contact who is used for extrudeing the sound piece, extrusion contact is arc extrusion contact, press splenium and extrusion contact corresponding opposite side to be equipped with connecting portion, it is connected with the face lid frame through connecting portion to press the splenium, the thickness of connecting portion is less than the face and covers the frame respectively and presses the thickness of.
Furthermore, the bottom of the face cover is provided with a torsion spring groove matched with the reset torsion spring and a sound piece groove matched with the sound piece, and an installation positioning column matched with a first positioning hole in the reset torsion spring is arranged in the torsion spring groove.
As one of preferable further solutions of the above solutions, the sound piece is a double-hole torsion spring, the double-hole torsion spring includes two second positioning holes and a first guide portion disposed obliquely, the two second positioning holes correspond to the base positioning holes on the base, and the first guide portion is in contact connection with the pressing contact on one side of the pressing portion.
As one of the preferable further solutions of the above solutions, the sound piece is a single-hole torsion spring, the single-hole torsion spring includes a third positioning hole and a second guide portion disposed obliquely, and the second guide portion is in contact connection with the pressing contact point on one side of the pressing portion.
The invention discloses a thin switch without a convex pressing part, which has the following beneficial effects:
the thin switch without the convex press is mainly composed of a face cover, a base, a sound piece and a contact elastic piece, wherein the sound piece and the contact elastic piece are positioned between the base and the face cover;
secondly, the assembly is rapid and convenient, the base is connected with the face cover in a riveting manner, the base positioning holes are arranged on the base, the first positioning holes are arranged on the reset torsion springs, and the mounting positioning columns matched with the base positioning holes and the first positioning holes are arranged on the face cover;
thirdly, the whole thickness of the keyboard is thin, a contact elastic sheet accommodating groove is formed in the center of the base, the top of the contact elastic sheet is lower than the upper surface of the base after the contact elastic sheet is horizontally arranged in the contact elastic sheet accommodating groove, the space of the base is reasonably utilized, the contact elastic sheet is arranged in the contact elastic sheet accommodating groove in the base and is lower than the upper part of the base, and the influence of the contact elastic sheet on the whole thickness of the keyboard is effectively reduced; on the other hand, the pressing part is arranged on the surface cover, the upper surface of the pressing part is flush with the upper surface of the surface cover, the pressing part is arranged on the surface cover to replace a traditional common pressing system, so that the thickness of the surface cover can be greatly reduced, the overall thickness of the keyboard is greatly reduced, and the keyboard is guaranteed to be ultra-thin;
fourthly, the button process can generate sound and fluctuation feeling, the use feeling of users is increased, the sound piece is arranged on the upper part of the slotted hole on one side of the base, the sound piece adopts a double-hole torsion spring or a single-hole torsion spring, the double-hole torsion spring and the single-hole torsion spring are respectively provided with a first guide part and a second guide part which are in contact connection with the extrusion contact on one side of the pressing part on the surface cover, the first guide part and the second guide part are respectively arranged in an inclined way with one side in contact with the extrusion contact, the extrusion contact is an arc extrusion contact, when the keyboard is used, a user presses the pressing part on the surface cover, the contact elastic sheet contact at the bottom of the pressing part acts on the conduction sheet at the middle part on the contact elastic sheet in the moving down process, the conduction sheet moves down to be in contact with the static terminal at the bottom of the base, the extrusion contact at the side part acts on the sound piece, and the, when the extrusion contact moves downwards, pressing fluctuation feeling can be brought to a user, and after the sound piece is separated from the extrusion contact, the sound piece rebounds upwards under the action of elasticity to strike the face cover to generate striking sound, so that the use experience and feeling of the user are greatly increased;
fifthly, the sensitivity is good, a contact spring contact is arranged at the bottom of the pressing part in the center of the face cover, the contact spring contact acts on a conduction part of the suspended part at the outer end of the contact piece body when moving downwards on the pressing part, and the conduction part further drives a conduction piece connected with the conduction part to move downwards to be in contact conduction with a static terminal at the bottom of the base; the pressing part on the face cover is positioned above the reset piece and covers the reset torsion spring or the reset elastic sheet, the face cover gives downward pressure to the reset torsion spring or the reset elastic sheet in the pressing process, when a user loosens the pressing part, the reset torsion spring or the reset elastic sheet can quickly reset under the action of elasticity and give upward pressure to the pressing part, so that the pressing part is separated from the conduction part, and after the pressing force on the conduction part is relieved, the conduction part also resets upwards under the action of the elasticity and drives the conduction piece to be quickly disconnected from the static terminal, so that the use sensitivity of the keyboard is improved;
sixth, promote face lid life, the middle part of face lid presses the setting of splenium, presses the splenium to be less than through thickness and presses the connecting portion of splenium thickness to be connected with face lid frame, and when pressing down external force and removing the back, according to the splenium and reset under reset spring or the spring action of shell fragment that resets, effectively avoid the face lid to press the junction of splenium to produce fatigue damage, play the effect that promotes face lid life.
Drawings
FIG. 1 is an exploded view of a bump-less press-on thin switch of the present invention installed in a keyboard;
FIG. 2 is an exploded view of a thin switch according to embodiment 1 of the present invention;
FIG. 3 is an assembled view of the thin switch of FIG. 2 with the cover removed;
FIG. 4 is a schematic structural view of the base shown in FIG. 2;
FIG. 5 is a schematic view of the bottom view structure of the front cover of FIG. 2;
FIG. 6 is a schematic structural diagram of the contact spring of FIG. 2;
FIG. 7 is a schematic structural view of the return torsion spring of FIG. 2;
FIG. 8 is a schematic structural view of the double-hole torsion spring shown in FIG. 2;
fig. 9 is an exploded view of a thin switch according to embodiment 2 of the present invention;
FIG. 10 is an assembled view of the thin switch of FIG. 9 with the cover removed;
FIG. 11 is a schematic structural view of the base of FIG. 9;
FIG. 12 is a schematic structural view of the single-hole torsion spring of FIG. 9;
fig. 13 is an exploded view of a thin switch according to embodiment 3 of the present invention;
FIG. 14 is an assembled view of the thin switch of FIG. 13 with the cover removed;
FIG. 15 is a schematic structural view of the base of FIG. 13;
fig. 16 is a schematic structural view of the reset spring plate in fig. 13;
fig. 17 is an exploded view of a thin switch according to embodiment 4 of the present invention;
fig. 18 is an assembled view of the thin switch of fig. 17 with the cover removed.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the following detailed description of the present invention is provided with reference to the accompanying drawings.
Example 1
As shown in fig. 1, the thin switch of the present invention is installed in a keyboard to form a thin keyboard, and includes: a chassis assembly including a circuit board 100 and a support plate 200; a plurality of buttons, the button is located on the bottom plate subassembly, every button top-down is equipped with in proper order: a key cap 500; the scissors feet 400 are positioned above the keycap 500, the upper parts of the scissors feet 400 are in contact connection with the keycap 500, and the lower parts of the scissors feet 400 are connected with the supporting plate 200; a thin switch 300 of the present invention connected to a circuit board 100 of a keyboard, the thin switch 300 of the present invention comprises: the face cover 320 is provided with a pressing part 321, and the upper surface of the pressing part 321 is flush with the upper surface of the face cover 320; a reset torsion spring 340 is arranged below the pressing part 321, and the pressing part 321 covers the reset torsion spring 340 positioned below; the base 310 is connected with the face cover 320 in a riveting manner, a contact elastic sheet accommodating groove 311 is formed in the center of the base 310, and a groove hole 318 communicated with the contact elastic sheet accommodating groove 311 is formed in one side of the base 310; a sound piece, which is positioned on the groove wall of the base 310 at the upper part of the groove hole 318, and is of a double-hole torsion spring 350 structure; a contact spring 330, wherein the contact spring 330 is horizontally disposed in the contact spring receiving groove 311, and the top of the contact spring 330 is lower than the upper surface of the base 310.
As shown in fig. 1, 2, 6 and 7, the reset torsion spring 340 is a polygonal torsion spring with an opening, the corners of the polygonal sides of the torsion spring are both provided with first positioning holes 341, both ends of the torsion spring are both provided with upwardly arched protrusions 342, and the arched protrusions 342 are spaced from the ends by a certain distance. The contact spring sheet 330 includes a contact spring sheet body, one side of the contact spring sheet body is a positioning portion 331, the positioning portion 331 is provided with a contact spring sheet positioning hole 333, the other side is a conduction portion 332, the conduction portion 332 is in a suspended arrangement, the conduction portion 332 is in a hollow arrangement and comprises a contact spring sheet frame body 334 and a conduction sheet 336, the conduction sheet 336 is located in the hollow portion, and the conduction sheet 336 is connected with the contact spring sheet frame body 334 through an arc-shaped connecting portion 335. When a user applies force downwards to the pressing portion 321, the pressing portion 321 moves downwards, the bottom of the pressing portion 321 is in contact with the arched protrusion 342, downward pressure is applied to the reset torsion spring by the pressing portion 321, the end portion of the reset torsion spring 340 moves downwards, after the pressing portion 321 is loosened, the end portion of the reset torsion spring 340 quickly bounces under the action of elastic force to reset, upward pressure is applied to the pressing portion 321, the pressing portion 321 is separated from the conduction portion 332 on the contact elastic piece 330, after the upward pressing force of the conduction portion 332 is in contact, the suspended conduction portion 332 also resets upwards under the action of elastic force, the conduction piece 336 is driven to be quickly disconnected from the static terminal 380, and the use sensitivity of the keyboard is.
As shown in fig. 1 to 4, a contact spring positioning post 312 matched with the contact spring positioning hole 333 and an arc-shaped supporting portion 315 for supporting the suspended conduction portion 332 are disposed in the contact spring receiving groove 311 of the base 310, and a through hole 314 for allowing the conduction piece 336 to be in contact conduction with a static terminal contact 381 on a static terminal 380 located at the bottom of the base 310 is disposed in the middle of the bottom of the contact spring receiving groove 311. The base 310 has a base positioning hole 313 corresponding to the first positioning hole 341 and used for positioning the double-hole torsion spring 350, and two base positioning holes 313 on both sides of the slot 318 are used for positioning the double-hole torsion spring 350, and the other base positioning holes 313 correspond to the first positioning holes 341.
As shown in fig. 1, 2 and 5, the face cover 320 includes a face cover frame 322 and a pressing portion 321 located inside the face cover frame 322, a gap 324 is left between the pressing portion 321 and the face cover frame 322, a contact spring contact 327 for pressing the contact spring 330 is disposed at the bottom of the pressing portion 321, a pressing contact 328 for pressing the double-hole torsion spring 350 is disposed at one side of the pressing portion 321 close to the double-hole torsion spring 350, the double-hole torsion spring 350 includes two second positioning holes 351 and an obliquely disposed first guiding portion 352, the two second positioning holes 351 correspond to the base positioning holes 313 on the base 310, the first guiding portion 352 is in contact connection with the pressing contact 328 at one side of the pressing portion 321, the pressing contact 328 is an arc-shaped pressing contact 328, a connecting portion 323 is disposed at the other side of the pressing portion 321 corresponding to the pressing contact 328, and the pressing portion 321 is connected to the face cover frame 322 through the connecting portion 323, the thickness of connecting portion 323 is less than face lid frame 322 and presses the thickness of splenium 321 respectively, makes and presses splenium 321 to have good elasticity, reduces the pressing force, promotes user's use experience. The bottom of the face cover 320 is provided with a return torsion spring groove 325 matched with the return torsion spring 340 and a sound piece groove 329 matched with the sound piece, and the return torsion spring groove 325 is internally provided with an installation positioning column 326 matched with a first positioning hole 341 on the return torsion spring 340.
As shown in fig. 1 to 8, the thin switch without bump according to the present invention mainly comprises a bottom plate assembly, a plurality of keys disposed on the bottom plate assembly, wherein the keys mainly comprise keycaps 500, scissor legs 400 and thin switches 300, the thin switches 300 mainly comprise a surface cover 320, a base 310, a sound component and a contact spring sheet 330 disposed between the base 310 and the surface cover 320, and the thin switch has the advantages of less overall component composition and simple structure; the base 310 is connected with the face cover 320 in a riveting and pressing mode, and the assembly is quick and convenient; the center of the base 310 is provided with a contact elastic sheet accommodating groove 311, the top of the contact elastic sheet 330 is lower than the upper surface of the groove wall of the base 310 after the contact elastic sheet is horizontally arranged in the contact elastic sheet accommodating groove 311, the space of the base 310 is reasonably utilized, the contact elastic sheet 330 is arranged in the contact elastic sheet accommodating groove 311 on the base 310 and is lower than the upper part of the base 310, and the influence of the contact elastic sheet 330 on the whole thickness of the keyboard is effectively reduced; on the other hand, the pressing part 321 is arranged on the surface cover 320, the upper surface of the pressing part 321 is flush with the upper surface of the surface cover 320, and the pressing part 321 arranged on the surface cover 320 replaces the traditional common pressing system, so that the thickness of the surface cover 320 can be greatly reduced, the overall thickness of the keyboard is greatly reduced, and the keyboard is guaranteed to be ultra-thin; the sound piece is arranged on the upper part of the slotted hole 318 on one side of the base 310, so that the sound piece can upwards hit the face cover 320 to generate sound when the keyboard is in use, and the use feeling of a user is improved.
Example 2
As shown in fig. 1 and 9 to 12, the present embodiment is substantially the same as the embodiment 1 in structure and principle, except that the sound component is a single-hole torsion spring 360, the single-hole torsion spring 360 includes a third positioning hole 361, an obliquely arranged second guiding portion 362 and a third guiding portion 363, and the second guiding portion 362 is in contact connection with the pressing contact 328 on the pressing portion 321 side. A single-hole torsion spring guide column 319 in contact guiding connection with the third guide part 363 is arranged on the groove wall of the base 310 between the groove hole 318 on the base 310 and the base positioning hole 313 on one side, a single-hole torsion spring guide inclined plane 3191 is arranged on one side of the single-hole torsion spring guide column 319 corresponding to the third guide part 363, and the guide inclined plane 3191 is in contact connection with the outer surface of the end part of the single-hole torsion spring. The structure and principle of this embodiment are basically the same as those of embodiment 1, and are not described again. When the piece of making a sound adopts haplopore torsional spring 360 in this embodiment as the piece of making a sound, add one on the base with haplopore torsional spring 360 matched with haplopore torsional spring guide post 319, haplopore torsional spring guide post 319 combines together to lead the aversion to haplopore torsional spring 360 respectively with the extrusion contact 328 on the face lid 320, and it shifts more accurately, fast, has ensured the stability of haplopore torsional spring 360 process of shifting simultaneously.
Example 3
As shown in fig. 1, 13 to 16, the structure and principle of the present embodiment are substantially the same as those of embodiment 1, except that the reset piece is a reset spring 370, namely, the reset spring plate 370 is adopted to replace the reset torsion spring 340, two reset spring plate accommodating grooves 317 which are oppositely distributed outside the two sides of the slot hole 318 are arranged on the base 310, the reset spring piece accommodating groove 317 is internally provided with two reset spring piece positioning columns 316, the two reset spring pieces 370 are respectively positioned at two sides of the slotted hole 318, the reset spring 370 includes a reset base plate 371 having a reset spring positioning hole 377, the upper part of the reset bottom plate 371 is provided with an S-shaped spring plate 372, the outer end part 376 of the bottom of the S-shaped spring plate 372 is connected with the outer side of the reset bottom plate 371, an inner end portion 375 at the upper portion of the S-shaped spring plate 372 is connected with the spring plate support plate 373, and a protrusion portion 374 protruding upwards is arranged between the inner end portion 375 and the spring plate support plate 373. The reset bottom plate 371 of the reset spring plate 370 is provided with a reset spring plate positioning hole 377 matched with the reset spring plate positioning post 316, and the reset spring plate 370 is positioned in the reset spring plate accommodating groove 317 through the reset spring plate positioning post 316.
Example 4
As shown in fig. 1, 17 and 18, the structure and principle of the present embodiment are the same as those of the above embodiments, except that the present embodiment selects the reset elastic piece 370 as the reset element and the single-hole torsion spring 360 as the sound element, which is an alternative scheme of the above embodiments, and the structure and principle are the same as those of the above embodiments, and are not repeated herein.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; the present invention may be readily implemented by those of ordinary skill in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (9)
1. A bump-less press latch thin switch, comprising:
the upper surface of the pressing part is flush with the upper surface of the surface cover;
the base is connected with the face cover in a riveting and pressing mode, a contact elastic sheet accommodating groove is formed in the center of the base, and a groove hole communicated with the contact elastic sheet accommodating groove is formed in one side of the base;
the sound piece is positioned at the upper part of the slotted hole of the base;
the contact elastic sheet is horizontally arranged in the contact elastic sheet accommodating groove, and the top of the contact elastic sheet is lower than the upper surface of the base;
the base is also provided with a reset piece which is a reset torsion spring or a reset elastic sheet,
the reset torsion spring is a polygonal torsion spring with an opening, each corner of the torsion spring is provided with a first positioning hole, two ends of the torsion spring are provided with an arched bulge which is arched upwards, and the arched bulge is away from the end by a certain distance;
the reset elastic pieces are two and are respectively positioned on two sides of the slotted hole, each reset elastic piece comprises a reset bottom plate with a reset elastic piece positioning hole, an S-shaped elastic piece is arranged on the upper portion of the reset bottom plate, the outer end portion of the bottom of the S-shaped elastic piece is connected with the outer side of the reset bottom plate, and the inner end portion of the upper portion of the S-shaped elastic piece is abutted to the surface cover.
2. The bumpless low profile switch of claim 1 further comprising: the contact shell fragment includes the contact shell fragment body, one side of contact shell fragment body is location portion, location portion is equipped with the contact shell fragment locating hole, and the opposite side is the conduction portion, the conduction portion is unsettled setting, the conduction portion is the cavity setting, including the contact shell fragment framework and the piece that switches on, the piece that switches on is located hollow portion, the piece that switches on passes through arc connecting portion and is connected with the contact shell fragment framework.
3. The bumpless low profile switch of claim 2 further comprising: the contact spring piece accommodating groove is internally provided with a contact spring piece positioning column matched with the contact spring piece positioning hole and an arc-shaped supporting part used for supporting the suspended conduction part, and the middle part of the contact spring piece accommodating groove is provided with a conduction hole for the conduction piece to be in contact conduction with a static terminal positioned at the bottom of the base.
4. The bumpless low profile switch of claim 3 further comprising: the base of the contact elastic sheet containing groove on the base is provided with base positioning holes corresponding to the first positioning holes and used for positioning the sounding piece, the two base positioning holes on the two sides of the groove hole are used for positioning the sounding piece, and the other base positioning holes correspond to the first positioning holes.
5. The bumpless low profile switch of claim 4 further comprising: the base between the slotted hole and the base positioning hole on one side is provided with a sound piece guide column, one side of the sound piece guide column corresponding to the sound piece is provided with a sound piece guide inclined plane, and the guide inclined plane is in contact connection with the end part of the sound piece.
6. The bumpless low profile switch of claim 5 further comprising: the base is provided with two reset elastic sheet accommodating grooves which are oppositely distributed outside the two sides of the groove hole, reset elastic sheet positioning columns are arranged in the reset elastic sheet accommodating grooves, and reset elastic sheet positioning holes matched with the reset elastic sheet positioning columns are arranged on a reset bottom plate of the reset elastic sheets.
7. The bumpless press low-profile switch according to any one of claims 1 to 6, further comprising: the face lid includes the face and covers the frame and be located the inside splenium of pressing of face lid frame, leave the clearance between pressing splenium and the face and covering the frame, it is equipped with the contact shell fragment contact that is used for pressing the contact shell fragment to press splenium bottom, one side of pressing splenium near the piece of making a sound is equipped with the extrusion contact who is used for extrudeing the piece of making a sound, it is equipped with connecting portion with the corresponding opposite side of extrusion contact to press splenium, press splenium to be connected with the face lid frame through connecting portion, the thickness of connecting portion is less than the face respectively and covers the.
8. The bumpless low profile switch of claim 7 further comprising: the bottom of the face cover is provided with a torsion spring groove matched with the reset torsion spring and a sound piece groove matched with the sound piece, and an installation positioning column matched with a first positioning hole in the reset torsion spring is arranged in the torsion spring groove.
9. The bumpless low profile switch of claim 8 further comprising: the sound piece is a double-hole torsion spring or a single-hole torsion spring,
the double-hole torsion spring comprises two second positioning holes and a first guide part which is obliquely arranged, the two second positioning holes correspond to the base positioning holes on the base, and the first guide part is in contact connection with the extrusion contact point on one side of the pressing part;
the single-hole torsion spring comprises a third positioning hole and a second guide part which is obliquely arranged, and the second guide part is in contact connection with the extrusion contact on one side of the pressing part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700390 | 2017-08-16 | ||
| CN2017107003907 | 2017-08-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107393758A CN107393758A (en) | 2017-11-24 |
| CN107393758B true CN107393758B (en) | 2020-09-29 |
Family
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Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710720714.3A Active CN107393758B (en) | 2017-08-16 | 2017-08-21 | Thin switch without protrusion pressing |
| CN201710720687.XA Active CN107393757B (en) | 2017-08-16 | 2017-08-21 | Thin keyboard |
| CN201710720618.9A Active CN107369576B (en) | 2017-08-16 | 2017-08-21 | Thin switch keyboard without protrusion pressing |
| CN201710720619.3A Active CN107393756B (en) | 2017-08-16 | 2017-08-21 | Thin switch |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710720687.XA Active CN107393757B (en) | 2017-08-16 | 2017-08-21 | Thin keyboard |
| CN201710720618.9A Active CN107369576B (en) | 2017-08-16 | 2017-08-21 | Thin switch keyboard without protrusion pressing |
| CN201710720619.3A Active CN107393756B (en) | 2017-08-16 | 2017-08-21 | Thin switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN107393758B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320967B (en) * | 2018-03-02 | 2023-10-20 | 惠州佳达隆电子科技有限公司 | Novel micro-gap switch |
| CN108899229B (en) * | 2018-07-18 | 2023-07-21 | 惠州冠泰电子有限公司 | Independent pressing shaft with sound and light sensing ultrathin keyboard |
| CN109103041B (en) * | 2018-09-27 | 2023-11-10 | 杭州涂鸦信息技术有限公司 | Torsion spring type switch panel device |
| CN113593951B (en) * | 2021-08-10 | 2024-02-27 | 宁波公牛电器有限公司 | Multi-touch switch |
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| CN104409260A (en) * | 2014-11-28 | 2015-03-11 | 惠州冠泰电子有限公司 | Thin-type button switch |
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| CN106504928A (en) * | 2016-12-31 | 2017-03-15 | 惠州冠泰电子有限公司 | A kind of elastic component for making slight keyboard that there is impact sound |
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| CN207282377U (en) * | 2017-08-16 | 2018-04-27 | 刘二军 | It is a kind of to press sincere slim switch without protrusion |
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| DE3132918C2 (en) * | 1980-09-16 | 1985-11-28 | Alps Electric Co., Ltd., Tokio/Tokyo | Push button switch |
| US9875863B2 (en) * | 2015-11-02 | 2018-01-23 | Asustek Computer Inc. | Key structure facilitating key cap removal |
| CN106206130B (en) * | 2016-09-02 | 2018-06-29 | 东莞市凯华电子有限公司 | A kind of keyboard switch for generating pressing sound |
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- 2017-08-21 CN CN201710720714.3A patent/CN107393758B/en active Active
- 2017-08-21 CN CN201710720687.XA patent/CN107393757B/en active Active
- 2017-08-21 CN CN201710720618.9A patent/CN107369576B/en active Active
- 2017-08-21 CN CN201710720619.3A patent/CN107393756B/en active Active
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| CN104409260A (en) * | 2014-11-28 | 2015-03-11 | 惠州冠泰电子有限公司 | Thin-type button switch |
| CN104992854A (en) * | 2014-12-29 | 2015-10-21 | 余正明 | Thin switch |
| CN106158470A (en) * | 2014-12-29 | 2016-11-23 | 余正明 | Keyboard switch |
| CN205789607U (en) * | 2016-10-07 | 2016-12-07 | 东莞市凯华电子有限公司 | A kind of ultra-thin mechanical keyboard switch with pressing sound |
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| CN207282377U (en) * | 2017-08-16 | 2018-04-27 | 刘二军 | It is a kind of to press sincere slim switch without protrusion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107393757B (en) | 2020-09-29 |
| CN107393758A (en) | 2017-11-24 |
| CN107369576A (en) | 2017-11-21 |
| CN107393756B (en) | 2020-09-29 |
| CN107369576B (en) | 2020-06-16 |
| CN107393757A (en) | 2017-11-24 |
| CN107393756A (en) | 2017-11-24 |
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