CN211376507U - Encoder with key switch - Google Patents

Abstract

The utility model discloses an encoder with a key switch, which comprises an encoder and a key switch group, wherein the encoder comprises an encoder conducting elastic sheet arranged on an encoder base, an encoder stopping seat arranged on the encoder base, a contact spring sheet arranged at the lower end of the encoder stopping seat and contacted with the encoder conducting elastic sheet, an encoder upper cover linked with the encoder stopping seat, and a key cap linked with the encoder upper cover; the key switch group comprises a center key switch, a plurality of side key switches arranged on the encoder base and positioned on the periphery of the center key switch, a swing shaft assembly arranged above the center key switch, a pressing reset piece arranged on the encoder base and positioned below the swing shaft assembly, a rotating shaft core arranged on the swing shaft assembly, and a plurality of key shafts correspondingly arranged on the side key switches. The utility model provides a take key switch's encoder, the integrated level is high, and the function pluralism, area occupied is little, and the operation is convenient, provides the integrated possibility of multiple switch function for electrical designer.

Description

Encoder with key switch

Technical Field

The utility model relates to a switch field especially relates to a take key switch's encoder.

Background

For products having both a coding function and a switching function, the following two forms are currently used in the market:

(1) the coding function and the switching function are respectively and independently arranged on two products, so that the cost is inevitably increased and the inconvenience is brought to the final user;

(2) the coding structure and the switch structure are simply assembled together, but the coding structure and the switch structure are actually separated, namely, different operation handles are required to control the coding structure and the switch structure in specific operation.

Although the form (2) realizes simple combination of two functions, strictly speaking, the two structures are not really combined, which is not only not good in use convenience but also low in integration level.

Meanwhile, most of encoder products on the market are separated products with single encoder function, and the requirement of integration of multiple functions cannot be met.

In summary, the encoder products on the market at present have the following disadvantages:

(1) the integration level is low, and the function is single;

(2) the user needs to operate on various products, and the operation is inconvenient and easy to confuse.

(3) A plurality of products need to be purchased independently according to needs, and the purchase cost is high;

(4) the device is arranged on terminal equipment (such as a keyboard and a car console) and occupies a large area.

SUMMERY OF THE UTILITY MODEL

To the above, an object of the utility model is to provide a take key switch's encoder, the integrated level is high, and the function pluralism, area occupied is little, and the operation is convenient, provides the integrated possibility of multiple switch function for electrical designer.

The utility model discloses a reach the technical scheme that above-mentioned purpose adopted and be:

an encoder with a key switch is characterized by comprising an encoder body and a key switch group arranged on the encoder, wherein the encoder body comprises an encoder base, an encoder conducting elastic sheet arranged on the encoder base and electrically connected to a PCB, an encoder stopping seat arranged on the encoder base, a contact reed arranged at the lower end of the encoder stopping seat and contacted with the encoder conducting elastic sheet, an encoder upper cover linked with the encoder stopping seat, and a keycap linked with the encoder upper cover; the key switch group comprises a center key switch arranged in the middle of the encoder base, a plurality of side key switches arranged on the encoder base and located on the periphery of the center key switch, a swing shaft assembly arranged above the center key switch, a pressing reset piece arranged on the encoder base and located below the swing shaft assembly, a rotating shaft core arranged on the swing shaft assembly and located below the keycap, and a plurality of key shafts correspondingly arranged on the side key switches and located below the keycap, wherein the upper cover of the encoder is arranged on the periphery of the swing shaft assembly, and the center key switch and the plurality of side key switches are electrically connected to the PCB.

As a further improvement of the present invention, an annular support is convexly disposed in the middle of the encoder base, an annular groove located in the periphery of the annular support and a central groove located in the annular support are formed in the encoder base, the encoder switch-on elastic piece, the contact spring piece and the lower portion of the encoder stopper seat are all disposed in the annular groove, the central key switch and the pressing reset piece are all disposed in the central groove, and the plurality of side key switches are disposed in the periphery of the annular groove.

As a further improvement of the present invention, the encoder locking seat mainly comprises an annular locking ring embedded in the ring groove, and an annular locking arm extending upward from an inner wall of the annular locking ring and surrounding the periphery of the annular bracket, wherein a plurality of upper locking positions and a plurality of upper clamping blocks are formed at an upper end of the annular locking arm, and a plurality of lower locking openings are formed on an outer wall of the annular locking arm; the upper cover of the encoder mainly comprises an annular cover body which is covered on the upper end of the annular stop arm, a plurality of lower clamping blocks which extend downwards from the lower end of the annular cover body, and a plurality of lower hook arms which extend downwards from the lower end of the annular cover body, wherein the lower clamping blocks are clamped in the upper clamping positions and are arranged in one-to-one correspondence with the upper clamping positions, and the lower hook arms are hooked into the lower clamping positions and are arranged in one-to-one correspondence with the lower clamping positions; meanwhile, a plurality of upper bayonets are arranged on the annular cover body, and the upper bayonets are used for clamping the upper clamping blocks and correspond to the upper clamping blocks one by one.

As a further improvement of the utility model, a plurality of outer hook arms are convexly arranged on the side edge of the upper cover of the encoder, and a lower hook groove is formed at the end part of each outer hook arm; a plurality of lower hook arms which are in one-to-one correspondence with the lower hook grooves and hook into the lower hook grooves extend downwards in the keycap.

As a further improvement of the present invention, at least one movable groove is formed on the encoder base and located at the periphery of the encoder locking seat, a hand feeling generating assembly is arranged in the movable groove, and the hand feeling generating assembly mainly comprises a hand feeling spring and a steel ball arranged between the hand feeling spring and the outer wall of the encoder locking seat; meanwhile, a plurality of arc-shaped convex parts are formed on the outer wall of the encoder stop seat.

As a further improvement of the utility model, an annular magnet is arranged in the ring groove and on the inner side of the steel ball.

As a further improvement, the annular upper end cover is equipped with a spacing apron, and this spacing apron ring locates encoder locking seat periphery, is equipped with the stopper of lid on locating the movable groove at this spacing apron side evagination, simultaneously, is provided with the spacing inserted block of several at this spacing apron outward flange downwardly extending, is formed with the several spacing groove that supplies spacing inserted block card to go into on this annular outer wall, and is formed with a jack that runs through to the encoder base outside bottom this spacing groove, during this spacing inserted block lower extreme inserted jack.

As a further improvement of the utility model, the encoder switches on the shell fragment and has three terminals that switch on of electricity connection in the PCB board.

As a further improvement, the balance staff assembly is mainly composed of a balance staff base movably disposed on the ring-shaped support and an upper balance staff and a lower balance staff disposed on the balance staff base and orthogonal to each other.

As a further improvement of the utility model, the pendulum shaft base lower extreme has an annular boss of embedding central inslot, and is formed with at least one side screens at this pendulum shaft base side, is equipped with to the epirelief on this annular stand and inserts in the side screens and collude an at least spacing piece that colludes on the pendulum shaft base.

As a further improvement of the present invention, the lower swing shaft comprises a lower swing shaft main body and two lower extension arms arranged at two ends of the lower swing shaft main body, wherein an embedded groove for embedding the lower end of the rotating shaft core is formed on the lower swing shaft main body; the upper swing shaft comprises an upper swing shaft main body and two upper extension arms, wherein the upper swing shaft main body is orthogonal to the lower swing shaft main body, the two upper extension arms are arranged at two ends of the upper swing shaft main body, and an upper swing shaft through hole for the rotating shaft core to pass through is formed in the upper swing shaft main body; the middle part of the swing shaft base is provided with a through hole for the lower part of the lower swing shaft main body to pass through, and the edge of the upper end of the swing shaft base is respectively provided with two lower movable clamping grooves for the two lower extension arms to be movably clamped in and two upper movable clamping grooves for the two upper extension arms to be movably clamped in; the encoder upper cover is arranged on the two lower extension arms and the two upper extension arms, and a center yielding hole for the upper part of the upper swing shaft main body to penetrate out from the upper end of the rotating shaft core is formed in the middle of the encoder upper cover.

As a further improvement of the utility model, a key guide frame is arranged on the encoder base, and the key guide frame mainly comprises a connecting ring which is annularly arranged at the periphery of the encoder stop seat and a plurality of positioning guide shaft sleeves which are formed on the outer side edge of the connecting ring and sleeved at the periphery of the key shaft; a plurality of mounting grooves for mounting the side key switches are formed on the encoder base; the positioning guide shaft sleeve mainly comprises a positioning seat and a guide sleeve, wherein the positioning seat is arranged at the upper end of the side key switch, the lower end of the positioning seat is embedded into the mounting groove, the guide sleeve is arranged on the positioning seat, a guide hole which penetrates through the positioning seat and the guide sleeve respectively is formed in the central shaft of the positioning guide shaft sleeve, and the key shaft is inserted into and penetrates through the guide hole from bottom to top.

As a further improvement of the present invention, the number of the side key switches is four, and the side key switches are respectively two left and right key switches arranged oppositely and two front and back key switches arranged oppositely; the length direction of the upper swing shaft and the two left and right key switches are positioned on the same straight line, and the length direction of the lower swing shaft and the two front and rear key switches are positioned on the same straight line.

As a further improvement of the utility model, a LED lamp is arranged on the central key switch.

As a further improvement of the utility model, it is reset spring to press the piece that resets, this reset spring butt in annular boss lower extreme.

As a further improvement of the utility model, at least one light leakage hole has been seted up on the encoder base, and this light leakage hole is located one of them side key switch side, the key cap is transparent or translucent form.

The utility model has the advantages that: through integrating several key switch functional structure is inseparable on the encoder, make whole product structure integrate rotary encoder parameter debugging, and multiple functions such as multi-functional selection of button, form and integrate the encoder product of taking key switch, each functional structure both can be inseparable combine into an organic whole, the integrated level is high, the purchase cost reduces, mutual can not produce the interference again when the operation, encoder and key switch move accurate and sensitive separately, the function pluralism, the area occupied is little, not only show the operation convenience that has improved, and provide multiple switch function integrated possibility for the electric designer.

The above is an overview of the technical solution of the present invention, and the present invention is further explained with reference to the accompanying drawings and the detailed description.

Drawings

FIG. 1 is an exploded view of the present invention;

fig. 2 is a schematic external structural view of the present invention;

FIG. 3 is a schematic structural view of a part of the present invention;

fig. 4 is a cross-sectional view of the present invention;

FIG. 5 is another schematic structural view of the present invention;

fig. 6 is a schematic structural diagram of the encoder base according to the present invention;

FIG. 7 is a schematic structural view of a stop seat and an upper cover of an encoder according to the present invention;

FIG. 8 is a schematic structural diagram of a key cap according to the present invention;

fig. 9 is another cross-sectional view of the present invention;

fig. 10 is a schematic structural view of the encoder of the present invention combining the conducting spring and the contact spring;

FIG. 11 is an exploded view of FIG. 10;

fig. 12 is a schematic structural view of the key switch set disposed on the encoder base according to the present invention;

fig. 13 is a schematic structural view of the central key switch and a plurality of side key switches of the present invention disposed on the encoder base;

fig. 14 is a schematic structural view of the combination of the pendulum shaft base and the annular bracket according to the present invention;

fig. 15 is a schematic structural view of a swing shaft base according to the present invention;

fig. 16 is a schematic structural view of the lower and middle balance shafts of the present invention;

fig. 17 is a schematic structural view of the upper swing shaft of the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings and preferred embodiments.

Referring to fig. 1 to 3, an embodiment of the present invention provides an encoder with a key switch, including an encoder body 1 and a key switch group 2 disposed on the encoder body 1. The encoder with the key switch is an integrated product integrating the encoder and the key switch, not only provides convenience for operators, but also provides the possibility of integrating multiple switch functions for electrical designers.

In this embodiment, as shown in fig. 1 to 6, the encoder body 1 includes an encoder base 11, an encoder conducting elastic sheet 12 disposed on the encoder base 11 and electrically connected to the PCB, an encoder stopping base 13 disposed on the encoder base 11, a contact spring 14 disposed at a lower end of the encoder stopping base 13 and contacting the encoder conducting elastic sheet 12, an encoder upper cover 15 linked with the encoder stopping base 13, and a key cap 16 linked with the encoder upper cover 15. When the key cap 16 is rotated, the encoder upper cover 15 and the encoder stop seat 13 can be sequentially driven to rotate, so that the contact reed 14 at the lower end of the encoder stop seat 13 is in sliding contact with the encoder conducting elastic sheet 12, and an adjustable rotary encoder capable of rotating 360 degrees can be formed. Therefore, the encoder with the key switch of the embodiment has the function of a rotary encoder, and a user can debug parameters and increment and decrement certain values when the encoder is used.

In the present embodiment, as shown in fig. 12 to 14, the key switch set 2 includes a central key switch 21 disposed in the middle of the encoder base 11, a plurality of side key switches 22 disposed on the encoder base 11 and located at the periphery of the central key switch 21, a swing shaft assembly 23 disposed above the central key switch 21, a pressing reset member 24 disposed on the encoder base 11 and located below the swing shaft assembly 23, a pivot core 25 disposed on the swing shaft assembly 23 and located below the key cap 16, and a plurality of key shafts 26 correspondingly disposed on the side key switches 22 and located below the key cap 16, wherein the encoder upper cover 15 covers the periphery of the swing shaft assembly 23, and the central key switch 21 and the plurality of side key switches 22 are electrically connected to the PCB board. Specifically, the center key switch 21 and the side key switch 22 in this embodiment are both conventional key switches, which are also called tact switches. When the pressure-sensitive switch is used, the pressure is applied to the operation direction of the key switch under the condition of meeting the operation force, the key switch can be closed and conducted, and the key switch can be disconnected after the pressure is removed. Therefore, the encoder with key switches of the present embodiment has a center key switch 21 and a plurality of side key switches 23, which can be used by the user to perform function selection operation.

Specifically, as shown in fig. 5 and 6, an annular bracket 111 is convexly disposed at the middle of the encoder base 11, an annular groove 112 located at the periphery of the annular bracket 111 and a central groove 113 located in the annular bracket 111 are respectively formed on the encoder base 11, the encoder conducting elastic sheet 12, the contact spring 14 and the lower portion of the encoder stopper 13 are all disposed in the annular groove 112, the central key switch 21 and the pressing reset piece 24 are all disposed in the central groove 113, and the plurality of side key switches 22 are disposed at the periphery of the annular groove 112, as shown in fig. 13.

Specifically, as shown in fig. 7, the encoder stopper base 13 mainly comprises an annular stopper ring 131 embedded in the ring groove 112, and an annular stopper arm 132 extending upward from an inner wall of the annular stopper ring 131 and surrounding the annular bracket 111, wherein a plurality of upper retaining blocks 1321 and a plurality of upper retaining blocks 1322 are formed at an upper end of the annular stopper arm 132, and a plurality of lower bayonets 1323 are formed on an outer wall of the annular stopper arm 132; meanwhile, the encoder upper cover 15 mainly comprises an annular cover body 151 covering the upper end of the annular stop arm 132, a plurality of lower clamping blocks 152 extending downwards from the lower end of the annular cover body 151, and a plurality of lower hook arms 153 extending downwards from the lower end of the annular cover body 151, wherein the lower clamping blocks 152 are clamped in the upper clamping blocks 1321 and are arranged in one-to-one correspondence with the upper clamping blocks 1321, and the lower hook arms 153 are hooked in the lower clamping blocks 1323 and are arranged in one-to-one correspondence with the lower clamping blocks 1323; meanwhile, a plurality of upper bayonets 1511 are provided on the annular cover 151, into which the upper bayonets 1322 are inserted and which correspond to the upper bayonets 1322 one by one. Therefore, the encoder upper cover 15 and the encoder stop seat 13 are buckled into a whole, and when the encoder upper cover 15 rotates, the encoder upper cover 15 also rotates along with the rotation, so that the function of linkage of the encoder upper cover 15 and the encoder stop seat is realized.

Meanwhile, a plurality of outer hook arms 154 are convexly arranged on the side edge of the encoder upper cover 15, and a lower hook groove 1541 is formed at the end part of the outer hook arms 154; meanwhile, as shown in fig. 8 and 9, a plurality of lower hooking arms 161, which correspond to the lower hooking grooves 1541 one by one and hook into the lower hooking grooves 1541, extend downward in the key cap 16. Therefore, the encoder upper cover 15 and the key cap 16 are connected into a whole, and when the key cap 16 is rotated, the encoder upper cover 15 also rotates to realize the function of linkage of the encoder upper cover 15 and the key cap.

In order to increase the hand feeling when rotating the key cap 16, as shown in fig. 5 and 6, in this embodiment, at least one movable groove 114 is formed on the encoder base 11 and located at the periphery of the encoder stop seat 13, a hand feeling generating assembly 17 is disposed in the movable groove 114, and the hand feeling generating assembly 17 mainly comprises a hand feeling spring 171 and a steel ball 172 disposed between the hand feeling spring 171 and the outer wall of the encoder stop seat 13; meanwhile, a plurality of arc-shaped protrusions 133 are formed on an outer wall of the encoder stopper 13. When the key cap 16 is rotated, the key cap 16 sequentially drives the encoder upper cover 15 and the encoder stop seat 13 to rotate, and in the rotating process of the encoder stop seat 13, an acting force towards the hand-feeling spring 171 is applied to the steel ball 172, so that the hand-feeling spring 171 is deformed, and the steel ball 172 slides on the plurality of arc-shaped protrusions 133 on the outer wall of the encoder stop seat 13, so that hand feeling is generated.

Meanwhile, in order to make the steel ball 172 always contact with the arc-shaped protrusion 133 on the outer wall of the encoder stopper 13, an annular magnet 173 is disposed in the annular groove 112 and inside the steel ball 172, specifically, the annular magnet 173 is embedded in the annular stopper ring 131. The steel ball 172 is magnetically attracted by the annular magnet 173, so that the steel ball 172 is attracted by the annular magnet 173, and the steel ball 172 is always in contact with the arc-shaped protruding part 133 on the outer wall of the encoder stopper base 13, thereby facilitating the generation of hand feeling during rotation.

In order to prevent the hand feeling generating assembly 17 and the encoder stopper 13 from shifting or tilting, as shown in fig. 3, in this embodiment, a limiting cover plate 18 is disposed on the upper end of the annular groove 112, the limiting cover plate 18 is disposed around the encoder stopper 13, a limiting block 181 disposed on the movable groove 114 is disposed on the side of the limiting cover plate 18 and protrudes outwards, and the limiting block 181 limits the hand feeling spring 171 and the steel ball 172 disposed in the movable groove 114. Meanwhile, as shown in fig. 3 and 13, a plurality of limit insertion blocks 182 extend downward from the outer edge of the limit cover plate 18, a plurality of limit grooves 1121 into which the limit insertion blocks 182 are inserted are formed on the outer wall of the annular groove 112, an insertion hole 1122 penetrating to the outside of the encoder base 11 is formed at the bottom of the limit grooves 1121, and the lower end of the limit insertion block 182 is inserted into the insertion hole 1122, so that the limit cover plate 18 is positioned on the encoder base 11.

In the present embodiment, as shown in fig. 6, 10 and 11, the encoder conductive elastic sheet 12 has three conductive terminals 120 electrically connected to the PCB. Specifically, the encoder conductive elastic sheet 12 is circular, and mainly comprises one third of the integral metal sheet 121, one third of the discontinuous metal sheet a122, and one third of the discontinuous metal sheet B123, and the three conductive terminals 120 are the conductive terminal 1211 connected to the integral metal sheet 121, the conductive terminal 1221 connected to the discontinuous metal sheet a122, and the conductive terminal 1231 connected to the discontinuous metal sheet B123, respectively. The discontinuous metal sheet a122 and the discontinuous metal sheet B123 are both discontinuous tooth-shaped metal sheets, that is, a plurality of tooth positions (1220,1230) are respectively formed on the discontinuous metal sheet a122 and the discontinuous metal sheet B123, and a space position (1222,1232) is arranged between two adjacent tooth positions.

Meanwhile, the contact spring 14 is an annular spring as a whole, and the contact spring 14 has three contact pins 141 which are in sliding contact with the encoder conducting spring 12.

When the contact spring 14 rotates along with the encoder stopper base 13, the three contact pins 141 on the contact spring 14 respectively slide on the integral metal sheet 121, the discontinuous metal sheet a122 and the discontinuous metal sheet B123, so that intermittent conduction and disconnection are realized, a pulse signal is formed, and clockwise rotation and counterclockwise rotation of the encoder are sensed.

Specifically, as shown in fig. 10, when rotating clockwise, one of the contact pins 141 of the contact spring 14 slides on the unitary metal sheet 121 to contact, the other contact pin 141 contacts with the tooth site on the discontinuous metal sheet a122, and the remaining contact pin 141 contacts with the empty site on the discontinuous metal sheet B123. Therefore, during the continuous rotation, when each tooth position is rotated, the conducting terminal 1211 on the encoder conducting elastic sheet 12 is connected with the conducting terminal 1221 or the conducting terminal 1211 is connected with the conducting terminal 1231. Each time the rotation is performed by one tooth, the on terminal 1211 and the on terminal 1221 are turned on, or the on terminal 1211 and the on terminal 1231 are switched, and the pulse signal a is generated.

In the counterclockwise reverse rotation, similarly, each time the rotation is performed by one tooth, the on terminal 1211 and the on terminal 1221 are turned on, or the on terminal 1211 and the on terminal 1231 are switched, so that the pulse signal B is generated.

Whether the rotation is clockwise or anticlockwise can be judged according to the front and back phases of the pulse signal A and the pulse signal B. When the encoder body 1 of the present embodiment is used to perform increment and decrement of a certain value, for example, volume adjustment and audio adjustment, the clockwise rotation and the counterclockwise rotation control the volume or increment/decrement of audio.

In this embodiment, as shown in fig. 12, the swing shaft assembly 23 mainly comprises a swing shaft base 231 movably disposed on the annular bracket 111, and an upper swing shaft 232 and a lower swing shaft 233 rotatably disposed on the swing shaft base 231 and orthogonally disposed with respect to each other.

Specifically, as shown in fig. 14 and 15, the lower end of the swing axle base 231 has an annular boss 2311 embedded in the central groove 113, and the side edge of the swing axle base 231 is formed with at least one side detent 2312, and the annular bracket 111 is provided with at least one limiting hook 1111 that is inserted into the side detent 2312 and hooked on the swing axle base 231. Because the annular boss 2311 of the pendulum shaft base 231 is embedded into the central groove 113 and the pendulum shaft base 231 is hooked by the limit hook 1111, the pendulum shaft base 231 is limited on the annular bracket 111 and can move up and down along the central groove 113 within a certain height stroke.

Specifically, as shown in fig. 16, the lower swing shaft 233 includes a lower swing shaft body 2331 and two lower extension arms 2332 disposed at both ends of the lower swing shaft body 2331, wherein an insertion groove 23311 into which the lower end of the rotation shaft core 25 is inserted is formed in the lower swing shaft body 2331. As shown in fig. 17, the upper swing axle 232 includes an upper swing axle main body 2321 orthogonally disposed to the lower swing axle main body 2331, and two upper extension arms 2322 disposed at both ends of the upper swing axle main body 2321, wherein an upper swing axle through hole 23211 for passing the pivot axle core 25 is opened on the upper swing axle main body 2321, and the upper swing axle main body 2321 is in an arched door shape bending upward. Meanwhile, a through hole 2310 for the lower part of the lower swing shaft main body 2331 to pass through is formed in the middle of the swing shaft base 231, and two lower movable clamping grooves 2313 for the two lower extension arms 2332 to be movably clamped in and two upper movable clamping grooves 2314 for the two upper extension arms 2322 to be movably clamped in are respectively formed in the edge of the upper end of the swing shaft base 231, that is, the lower swing shaft 233 can swing left and right along the two lower movable clamping grooves 2313, and the upper swing shaft 232 can swing left and right along the two upper movable clamping grooves 2314.

In order to prevent the end tilting phenomenon of the upper swing shaft 232 and the lower swing shaft 233, in this embodiment, the encoder upper cover 15 is covered on the two lower extension arms 2332 and the two upper extension arms 2322, as shown in fig. 3, and a center yielding hole 150 for the upper portion of the upper swing shaft main body 2321 and the upper end of the rotation shaft core 25 to pass through is formed in the middle of the encoder upper cover 15. Therefore, the upper swing shaft 232 and the lower swing shaft 233 are limited by the encoder upper cover 15, and can only swing left and right within a certain range without the tilting phenomenon of the end part, so that the accuracy of the swing action of the upper swing shaft 232 and the lower swing shaft 233 is improved.

In order to improve the pressing accuracy of the side key switch 22, in the present embodiment, a key guide 27 is disposed on the encoder base 11, as shown in fig. 12, the key guide 27 mainly comprises a connecting ring 271 annularly disposed on the periphery of the encoder stopper 13, and a plurality of positioning guide shaft sleeves 272 formed on the outer side of the connecting ring 271 and sleeved on the periphery of the key shaft 26; a plurality of mounting grooves 115 for mounting the side key switches 22 are formed on the encoder base 11; the positioning guide shaft sleeve 272 mainly comprises a positioning seat 2721 arranged at the upper end of the side key switch 22 and having a lower end embedded in the mounting groove 115, and a guide sleeve 2722 arranged on the positioning seat 2721, wherein a guide hole penetrating through the positioning seat 2721 and the guide sleeve 2722 is formed on a central shaft of the positioning guide shaft sleeve 272, and the key shaft 26 is inserted into and penetrates through the guide hole from bottom to top. The positioning seat 2721 positions the side key switch 22 in the mounting groove 115 to prevent the side key switch 22 from shifting during operation; and the guide sleeve 2722 provides a guide function for the up and down movement of the key shaft 26. When a certain position on the key cap 16 is pressed downwards, the key cap 16 contacts and drives the key shaft 26 below the pressed position to move downwards vertically along the guide hole in the guide sleeve 2722, so as to trigger the key switch 22 on the side below the position; when the key cap 16 is released from being pressed, the key shaft 26 is driven by the pressing reset piece 24 and the elastic reset piece inside the side key switch 22 to move vertically upwards and reset along the guide hole inside the guide sleeve 2722. This improves the accuracy of the on operation and the off operation of the side key switch 22.

The number of the side key switches 22 can be set according to specific needs, in this embodiment, it is preferable that the number of the side key switches 22 is four, and the four side key switches are two left and right key switches 221 arranged oppositely and two front and rear key switches 222 arranged oppositely, respectively, as shown in fig. 13; the length direction of the upper swing shaft 232 is aligned with the two left and right key switches 221, and the length direction of the lower swing shaft 233 is aligned with the two front and rear key switches 222, as shown in fig. 12.

When a position (above the front and rear key switches 222) on the front and rear sides of the key cap 16 is pressed downward, the middle part of the key cap 16 is supported by the spindle core 25, and as shown in fig. 4, the key shaft 26 at the pressed position moves downward to trigger the side key switch 22 below the key shaft 26 to be turned on. In the process, as shown in fig. 12, the key cap 16 is swung to the side pressed by the key cap 16 by the upper swing shaft 232, so that the pressed position of the key cap 16 moves downward, and the non-pressed position is supported by the upper swing shaft 232 and does not move downward, that is, the upper swing shaft 232 guides the downward movement direction of the key cap 16, so that the key cap 16 is accurately inclined to the pressed position, and the non-pressed position does not move downward, thereby preventing the phenomenon that the key cap 16 moves downward integrally and the four side key switches 22 are all turned on. Similarly, when a position (above the left and right key switches 221) on the left and right sides of the key cap 16 is pressed downward, the middle part of the key cap 16 is supported by the spindle core 25, and the pressed key spindle 26 moves downward to trigger the side key switch 22 below the key spindle 26 to be turned on. In the process, as shown in fig. 12, the downward swing shaft 233 swings toward the side where the key cap 16 is pressed, so that the pressed position of the key cap 16 moves downward, and the non-pressed position is supported by the downward swing shaft 233 and does not move downward, that is, the downward movement direction of the key cap 16 is guided by the downward swing shaft 233, so that the key cap 16 is accurately inclined toward the pressed position, and the non-pressed position does not move downward, thereby preventing the phenomenon that the key cap 16 moves downward integrally and the four side key switches 22 are all turned on. Therefore, the function that the single side key switch 22 is independently and accurately pressed and the single side key switch 22 is independently and accurately conducted is realized, the reliability is high, and the possibility of misoperation is low.

The present embodiment has four side key switches 22, and four pressing actions can be realized by pressing the key cap 16 at four positions, front, back, left, and right, to complete four different conduction functions. What functions can be specifically realized by the four side key switches 22 can be set according to the user's needs. For example, two front-back key switches 222 may be used for switching between upper and lower directories, and two left-right key switches 221 may be used for switching between a previous song and a next song, or adjusting the volume level, etc.

In the specific operation of the central key switch 21, as shown in fig. 4, the middle of the key cap 16 is pressed downward, a downward acting force is applied to the rotating shaft core 25, the rotating shaft core 25 acts downward on the lower swing shaft 233, the lower swing shaft 233 drives the swing shaft base 231 to move downward, and the central key switch 21 is pressed downward by the lower end of the swing shaft base 231, so that the central key switch 21 is turned on; at the same time, the lower end of the pendulum shaft base 231 presses the pressing reset piece 24 downward, so that the pressing reset piece 24 is compressed. When the pressing of the middle part of the key cap 16 is released, the whole is reset by the elastic restoring force of the pressing reset piece 24, and the center key switch 21 is turned off. This realizes the operation of the center key switch 21.

The specific function of the central key switch 21 can be set according to specific requirements, for example, a confirmation key is set, and after the mode is confirmed, the volume is confirmed, or the song is selected, the middle part of the key cap 16 is pressed to turn on the central key switch 21, that is, the purpose of confirmation is achieved.

Meanwhile, in the present embodiment, an LED lamp 210 electrically connected to the PCB is further disposed on the central key switch 21, the LED lamp 210 provides a working status indication for the whole switch, and the LED lamp 210 can be turned on as long as the product is powered on.

In this embodiment, as shown in fig. 4, the pressing reset piece 24 is a reset spring, and the reset spring 24 abuts against the lower end of the annular boss 2311. When the key top 16 is pressed, the return spring is compressed, and when the key top 16 is released from the pressing, the entire switch is returned by the upward elastic restoring force of the return spring.

In this embodiment, as shown in fig. 3, at least one light leakage hole 116 is formed on the encoder base 11, the light leakage hole 116 is located at a side of the key switch 22 on one side, and the key cap 16 is transparent or semitransparent. Through the arrangement of the light leakage hole 116, when the whole circuit on the PCB below the switch is powered on, light emitted by other light emitting elements on the PCB leaks out from the light leakage hole 116 and is transmitted out from the keycap 16. Therefore, no matter how the key cap 16 is rotated, the position of the light beam that is transmitted through the light source does not change, and the user can be informed of the position of the corresponding side key switch 22, and accordingly, the position of the side key switch 22 on the opposite side and the positions of the other two orthogonal side key switches 22 can be obtained through the orthogonal principle, so that the user can conveniently press and select the four side key switches 22.

What need to explain here, the utility model discloses a take the encoder structural design's of key switch development research, realize integrating of multiple functional structure, it is not to the circuit design on the matched with PCB board with it the utility model discloses a key and innovation point.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that other structures obtained by adopting the same or similar technical features as the above embodiments of the present invention are all within the protection scope of the present invention.

Claims (16)

1. An encoder with a key switch is characterized by comprising an encoder body and a key switch group arranged on the encoder body, wherein the encoder body comprises an encoder base, an encoder conducting elastic sheet arranged on the encoder base and electrically connected to a PCB (printed circuit board), an encoder stopping seat arranged on the encoder base, a contact reed arranged at the lower end of the encoder stopping seat and contacted with the encoder conducting elastic sheet, an encoder upper cover linked with the encoder stopping seat, and a keycap linked with the encoder upper cover; the key switch group comprises a center key switch arranged in the middle of the encoder base, a plurality of side key switches arranged on the encoder base and located on the periphery of the center key switch, a swing shaft assembly arranged above the center key switch, a pressing reset piece arranged on the encoder base and located below the swing shaft assembly, a rotating shaft core arranged on the swing shaft assembly and located below the keycap, and a plurality of key shafts correspondingly arranged on the side key switches and located below the keycap, wherein the upper cover of the encoder is arranged on the periphery of the swing shaft assembly, and the center key switch and the plurality of side key switches are electrically connected to the PCB.

2. The encoder as claimed in claim 1, wherein an annular frame is protruded from a middle portion of the encoder base, an annular groove is formed in the encoder base, the annular groove is formed in an outer periphery of the annular frame, a central groove is formed in the annular frame, the encoder conductive spring, the contact spring and a lower portion of the encoder stopper are disposed in the annular groove, the central push-button switch and the push-reset member are disposed in the central groove, and the side push-button switches are disposed in an outer periphery of the annular groove.

3. The encoder with the key switch as claimed in claim 2, wherein the encoder locking seat is mainly composed of an annular locking ring embedded in the ring groove, and an annular locking arm extending upward from an inner wall of the annular locking ring and surrounding the periphery of the annular bracket, wherein a plurality of upper locking positions and a plurality of upper locking blocks are formed at an upper end of the annular locking arm, and a plurality of lower locking openings are formed on an outer wall of the annular locking arm; the upper cover of the encoder mainly comprises an annular cover body which is covered on the upper end of the annular stop arm, a plurality of lower clamping blocks which extend downwards from the lower end of the annular cover body, and a plurality of lower hook arms which extend downwards from the lower end of the annular cover body, wherein the lower clamping blocks are clamped in the upper clamping positions and are arranged in one-to-one correspondence with the upper clamping positions, and the lower hook arms are hooked into the lower clamping positions and are arranged in one-to-one correspondence with the lower clamping positions; meanwhile, a plurality of upper bayonets are arranged on the annular cover body, and the upper bayonets are used for clamping the upper clamping blocks and correspond to the upper clamping blocks one by one.

4. The encoder with the key switch according to claim 1, wherein a plurality of outer hook arms are convexly provided at the side edges of the upper cover of the encoder, and a lower hook groove is formed at the end of the outer hook arm; a plurality of lower hook arms which are in one-to-one correspondence with the lower hook grooves and hook into the lower hook grooves extend downwards in the keycap.

5. The encoder with the key switch as claimed in claim 2, wherein at least one movable groove is formed on the encoder base and at the periphery of the encoder stopper, a hand feeling generating member is disposed in the movable groove, and the hand feeling generating member is mainly composed of a hand feeling spring and a steel ball disposed between the hand feeling spring and the outer wall of the encoder stopper; meanwhile, a plurality of arc-shaped convex parts are formed on the outer wall of the encoder stop seat.

6. The encoder as claimed in claim 5, wherein a ring magnet is disposed inside the ring groove and inside the steel ball.

7. The encoder as claimed in claim 5, wherein a limit cover is disposed on the top end of the annular groove, the limit cover is disposed around the outer circumference of the encoder stop seat, a limit block is disposed on the side of the limit cover and protrudes outwards from the movable groove, a plurality of limit inserts are disposed on the outer edge of the limit cover and extend downwards, a plurality of limit grooves are formed on the outer wall of the annular groove for the limit inserts to be inserted into, and a plug hole is formed at the bottom of the limit groove and penetrates to the outside of the encoder base, and the lower end of the limit insert is inserted into the plug hole.

8. The encoder as claimed in claim 1, wherein the encoder conductive spring has three conductive terminals electrically connected to the PCB.

9. The encoder as claimed in claim 2, wherein the swing shaft assembly comprises a swing shaft base movably disposed on the annular support, and an upper swing shaft and a lower swing shaft rotatably disposed on the swing shaft base and orthogonally disposed with respect to each other.

10. The encoder as claimed in claim 9, wherein the swing shaft base has a lower end having an annular protrusion inserted into the central groove, and the swing shaft base has at least one side latch formed at a side thereof, and the annular bracket has at least one position-limiting hook protruding upward and inserted into the side latch and hooked on the swing shaft base.

11. The encoder with the key switch according to claim 9, wherein the lower swing shaft comprises a lower swing shaft main body and two lower extending arms provided at both ends of the lower swing shaft main body, wherein an insertion groove into which the lower end of the rotation shaft core is inserted is formed in the lower swing shaft main body; the upper swing shaft comprises an upper swing shaft main body and two upper extension arms, wherein the upper swing shaft main body is orthogonal to the lower swing shaft main body, the two upper extension arms are arranged at two ends of the upper swing shaft main body, and an upper swing shaft through hole for the rotating shaft core to pass through is formed in the upper swing shaft main body; the middle part of the swing shaft base is provided with a through hole for the lower part of the lower swing shaft main body to pass through, and the edge of the upper end of the swing shaft base is respectively provided with two lower movable clamping grooves for the two lower extension arms to be movably clamped in and two upper movable clamping grooves for the two upper extension arms to be movably clamped in; the encoder upper cover is arranged on the two lower extension arms and the two upper extension arms, and a center yielding hole for the upper part of the upper swing shaft main body to penetrate out from the upper end of the rotating shaft core is formed in the middle of the encoder upper cover.

12. The encoder with the key switch as claimed in claim 1, wherein a key guide is provided on the encoder base, the key guide mainly comprising a connection ring surrounding the outer periphery of the encoder stopper, and a plurality of positioning guide sleeves formed on the outer side of the connection ring and sleeved on the outer periphery of the key shaft; a plurality of mounting grooves for mounting the side key switches are formed on the encoder base; the positioning guide shaft sleeve mainly comprises a positioning seat and a guide sleeve, wherein the positioning seat is arranged at the upper end of the side key switch, the lower end of the positioning seat is embedded into the mounting groove, the guide sleeve is arranged on the positioning seat, a guide hole which penetrates through the positioning seat and the guide sleeve respectively is formed in the central shaft of the positioning guide shaft sleeve, and the key shaft is inserted into and penetrates through the guide hole from bottom to top.

13. The encoder with key switches according to claim 9, wherein the number of the side key switches is four, and the side key switches are respectively two left and right key switches arranged oppositely and two front and rear key switches arranged oppositely; the length direction of the upper swing shaft and the two left and right key switches are positioned on the same straight line, and the length direction of the lower swing shaft and the two front and rear key switches are positioned on the same straight line.

14. The encoder with key switch of claim 1, wherein an LED lamp is disposed on the center key switch.

15. The encoder with the key switch according to claim 10, wherein the pressing reset member is a reset spring abutting against a lower end of the annular boss.

16. The encoder as claimed in claim 1, wherein the encoder base has at least one light-leaking hole, the light-leaking hole is located at one side of the key switch, and the key cap is transparent or translucent.

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