CN109256292B - Mute key assembly and key board applying same - Google Patents
Mute key assembly and key board applying same Download PDFInfo
- Publication number
- CN109256292B CN109256292B CN201710564533.6A CN201710564533A CN109256292B CN 109256292 B CN109256292 B CN 109256292B CN 201710564533 A CN201710564533 A CN 201710564533A CN 109256292 B CN109256292 B CN 109256292B
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- China
- Prior art keywords
- elastic sheet
- mute
- waterproof
- key assembly
- base
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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
- H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
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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
- H01H13/14—Operating parts, e.g. push-button
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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
-
- 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
- H01H2221/00—Actuators
Abstract
The invention discloses a mute key assembly and a key pad applying the mute key assembly, which comprise a press shaft, wherein the press shaft moves back and forth along the length direction of the press shaft; the invention realizes the mute and waterproof functions of the key when the user presses the key, and simultaneously can reduce the space occupancy and also reduce the structural member cost.
Description
Technical Field
The invention relates to a key switch, in particular to a mute key assembly and a key pad applying the same.
Background
The key switch is a switch which utilizes a key to push a transmission mechanism, enables a movable contact and a static contact to be pressed on or off and realizes circuit switching. The key switch is also a master control electrical appliance with simple structure and wide application. In an electric automatic control circuit, the principle of the electric automatic control circuit is that a switch for switching internal contacts is driven by a pushing force which is in the same straight line with the stroke of a key.
In addition, the whole structural design of the existing key switch is complex, the number of parts of the component is large, the cost is high, meanwhile, the occupied space of the component is large, and the layout of internal parts is directly influenced. The whole assembly structure is optimized, the number of parts is reduced, optimization is carried out on the implementation principle, and structural design is improved.
Disclosure of Invention
The main objective of the present invention is to provide a mute key assembly and a keypad using the same, so as to solve the above technical problems.
According to one aspect of the invention, the mute key assembly comprises a pressing shaft, wherein the pressing shaft moves back and forth along the length direction of the pressing shaft, and the mute key assembly is characterized by further comprising a first elastic sheet, one end of the first elastic sheet is fixed on a circuit board, the other end of the first elastic sheet extends towards the direction far away from the circuit board to form a suspension end, the projection of the suspension end is intersected with the projection of the pressing shaft on a plane perpendicular to the moving direction of the pressing shaft, and the pressing shaft pushes the suspension end to abut against a mute contact on the circuit board along the length direction of the pressing shaft so that the first elastic sheet, the mute contact and the circuit board form a loop.
Optionally, the silent switch further comprises a second elastic sheet having a gap with the first elastic sheet, one end of the second elastic sheet is fixed to the silent contact, a projection of the second elastic sheet intersects with a projection of the suspension end on a plane perpendicular to a moving direction of the pressing shaft, and the pressing shaft pushes the suspension end to abut against the second elastic sheet along a length direction of the pressing shaft, so that the first elastic sheet, the second elastic sheet, the silent contact and the circuit board form a loop.
Optionally, a fixing piece is clamped between the first elastic piece and the second elastic piece, an end portion, far away from the circuit board, of the second elastic piece is designed to be a fitting end, the fitting end and the suspension end are located on the same side of the fixing piece, the fitting end is fitted to the fixing piece, and a projection of the fitting end intersects with a projection of the suspension end on a plane perpendicular to a moving direction of the pressing shaft.
Optionally, including the base that is the tube-shape setting, the inner wall of base is fixed with the diaphragm, the diaphragm with the inner wall of base is sealed to be set up, follows according to the length direction of axle, the diaphragm will cavity and cavity down are split into to the base, just cavity side down the tip of base with the stationary blade constitutes detachable fixed connection, the suspension end reaches the laminating end all is located down in the cavity, seted up waterproof hole on the diaphragm just waterproof hole is equipped with waterproof, locate according to the axle sleeve waterproof hole, be in according to the axle follow in the waterproof hole the thickness direction reciprocating motion of diaphragm.
Optionally, include top, middle part and bottom in proper order along its length direction according to the axle, the area of the cross section at middle part is greater than the area in waterproof hole, the bottom cover according to the axle is located the waterproof hole.
Optionally, a fixing frame is detachably fixed at the end of the base on the upper cavity side, a limiting hole matched with the top is formed in the fixing frame, the top is sleeved in the limiting hole, the top reciprocates in the limiting hole along the thickness direction of the cross plate, and the area of the cross section of the middle part is larger than that of the limiting hole.
Optionally, the fixing frame includes a bottom plate provided with the limiting hole, at least three sides of the bottom plate extend to the same side to form side plates, and each side plate is provided with a fixing part so that the side plate and the side wall of the base form a detachable fixed connection.
Optionally, a waterproof ring is fixed on the surface of the fixing frame far away from the base.
Optionally, the waterproof member is made of an elastic material, and is a waterproof ring arranged in an annular shape or a waterproof layer full of the waterproof holes.
Optionally, a first buffer made of an elastic material is filled between the middle portion and the transverse plate.
Optionally, a second buffer made of an elastic material is filled between the middle part and the bottom plate.
According to another aspect of the invention, the key pad comprises a detachable fixedly connected shell and at least one mute key assembly, wherein the shell is provided with a plurality of shaft holes corresponding to the mute key assemblies one by one, the extending end of the press shaft, which is far away from the base, extends out of the shaft holes, and the extending end is detachably and fixedly connected with a keycap.
The invention has the following beneficial effects: the mute key assembly and the key pad applying the mute key assembly provided by the embodiment of the invention realize the mute function when a user presses a key. Meanwhile, the mute key assembly occupies a small space, the space occupancy rate can be reduced, more cases can be installed on the shell, and the structural member cost is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a keypad of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic structural view of a base according to the present invention;
FIG. 4 is a schematic structural view of the fixing frame of the present invention;
FIG. 5 is a schematic axial view of the present invention;
FIG. 6 is a three-dimensional schematic view of a first spring plate according to the present invention;
FIG. 7 is a side view of a first resilient tab of the present invention;
FIG. 8 is a three-dimensional schematic view of the second elastic sheet of the present invention;
FIG. 9 is a schematic view of the fastening sheet of the present invention;
FIG. 10 is a schematic structural diagram of a key cap according to the present invention.
In the figure, 1, a housing; 2. a circuit board; 21. a copper exposing area; 3. a base; 31. fixing a column; 32. buckling; 33. a waterproof hole; 34. a transverse plate; 35. a threaded hole; 36. a clamping block; 4. a fixed mount; 41. a base plate; 42. a card slot; 43. a side plate; 44. a limiting hole; 45. a waterproof ring; 5. pressing the shaft; 51. a top portion; 52. a middle part; 53. a bottom; 6. a first elastic sheet; 61. mounting holes; 62. a suspended end; 7. a second elastic sheet; 71. a fitting end; 8. a fixing sheet; 81. a fixing hole; 82. mounting grooves; 9. the key cap.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 is a schematic structural diagram of a keypad in this embodiment. Referring to fig. 1, a keypad is provided, which is suitable for any electric device requiring keys to input information, such as a mobile phone keypad, a computer keypad, or a remote control keypad.
The key pad comprises a shell 1, at least one mute key assembly and key caps 9 corresponding to the mute key assembly one by one.
Each mute key assembly and the shell 1 form a detachable fixed connection, the shell 11 is provided with a plurality of shaft holes corresponding to the mute key assemblies one by one, and the extending end of the press shaft 55 far away from the base 33 extends out of the shaft holes and is detachably and fixedly connected with the keycap 99.
According to the drawings of fig. 1 to 10, the mute key assembly comprises a pressing shaft 5, the pressing shaft 5 moves back and forth along the length direction of the pressing shaft, the mute key assembly further comprises a first elastic sheet 6, one end of the first elastic sheet 6 is fixed on the circuit board 2, the other end of the first elastic sheet 6 extends towards the direction far away from the circuit board 2 to form a suspension end 62, the projection of the suspension end 62 is intersected with the projection of the pressing shaft 5 on a plane perpendicular to the moving direction of the pressing shaft 5, and the pressing shaft 5 pushes the suspension end 62 to abut against the mute contact on the circuit board 2 along the length direction of the pressing shaft 5 so that the first elastic sheet 6, the mute contact and the circuit board 2 form a loop. It comprises a base 3 which is arranged according to a shaft 5 and is in a cylinder shape, a transverse plate 34 which divides the base 3 into two spaces is fixed on the inner wall of the base 33, a waterproof hole 45 is arranged on the transverse plate 34, a waterproof piece is arranged on the waterproof hole 33, the waterproof hole 33 is sleeved according to the shaft 5, the shaft 5 reciprocates in the waterproof hole 33 along the thickness direction of the transverse plate 34, a first elastic sheet 6 and a second elastic sheet 7 which are arranged at intervals are fixed at the bottom end of the base 3, one end of the first elastic sheet 6 and one end of the second elastic sheet 7 are electrically connected with a circuit board 2, that is, the first elastic sheet 6 and the second elastic sheet 7 are electrically connected with the copper exposed area 21 of the circuit board 2, the other end of the first elastic sheet 6 extends towards the transverse plate 34 to form a suspension end 62, the suspension end 62 is positioned on one side of the bottom end of the waterproof hole 33, and the waterproof hole 33 is extended along the direction towards the bottom end along the shaft 5 to extrude the suspension end 62 to abut against the second elastic sheet 7 to form a loop.
Through the mute key assembly, the mute and waterproof functions of a user during key pressing are realized. Meanwhile, the mute key assembly occupies a small space and can reduce the space occupancy rate, so that more keys can be installed on the shell 1, and the structural member cost is also reduced.
Specifically, according to fig. 2, for the mute key assembly, it includes a pressing shaft 5, the pressing shaft 5 moves back and forth along its length direction, that is, when a user presses a key cap 9, the key cap 9 will push the pressing shaft 5 to move along its pressing direction under the action of pressure, that is, the length direction of the pressing shaft 5 is the pressure direction. In addition, this silence key subassembly still includes shell fragment 6, the one end of shell fragment 6 is fixed in on circuit board 2, the other end of the shell fragment 6 towards keep away from the direction of circuit board 2 extends and forms suspension end 62. The first elastic sheet 6 can transmit signals and is electrically connected with the circuit board 2. Optionally, the circuit board 2 is a PCB board, and a chip and a circuit are disposed thereon to control the switching function of the mute key of the terminal. And two copper exposing areas 21 are arranged on the PCB, and the first elastic sheet 6 is fixed in one copper exposing area 21. In addition, it may be exemplarily set up that: the first elastic sheet 6 can be fixed in the copper exposed area 21 through a screw (such as a screw), in this embodiment, it is only necessary that the first elastic sheet 6 and the copper exposed area 21 always form an electrical connection, and any fixing manner therebetween falls within the protection scope of the present invention.
In addition, on a plane perpendicular to the moving direction of the pressing shaft 5, the projection of the floating end 62 is intersected with the projection of the pressing shaft 5, and the pressing shaft 5 pushes the floating end 62 to abut against a mute contact on the circuit board 2 along the length direction of the pressing shaft 5, so that the first elastic sheet 6, the mute contact and the circuit board 2 form a loop. The mute contact is another copper exposing area 21 arranged on the PCB.
Therefore, when the pressing shaft 5 receives pressure from the keycap 9, the pressing shaft 5 moves along the length direction of the pressing shaft 5 to press the first elastic sheet 6 to deform, so that the suspension end 62 of the first elastic sheet 6 moves to be in contact with the mute contact, namely the suspension end 62 of the first elastic sheet 6 is electrically connected with the other copper-exposed area 21 arranged on the PCB, and thus the first elastic sheet 6, the mute contact and the circuit board 2 form a loop. Thus, the mute function during key pressing is realized. Meanwhile, the mute key assembly occupies a small space, the space occupancy rate can be reduced, more cases can be installed on the shell 1, and the structural member cost is reduced. Of course, after the pressure on the keycap 9 is removed, the first elastic sheet 6 resets, and the loop is disconnected.
Optionally, the mute key assembly further comprises a second elastic sheet 7 having a gap with the first elastic sheet 6, the pressing shaft 5, the suspension end 62, the second elastic sheet 7 and the mute contact are sequentially distributed in the moving direction of the pressing shaft 5, one end of the second elastic sheet 7 is fixed to the mute contact, so that the second elastic sheet 7 is electrically connected with the mute contact, namely, the second elastic sheet 7 is electrically connected with another copper-exposed area 21 arranged on the PCB. On a plane perpendicular to the moving direction of the pressing shaft 5, the projection of the second elastic sheet 7 is intersected with the projection of the floating end 62, that is, when the pressing shaft 5 moves along the moving direction, the floating end 62 pressed by the pressing shaft 5 enables the floating end 62 to abut against the second elastic sheet 7, which means that the pressing shaft 5 pushes the floating end 62 to abut against the second elastic sheet 7 along the length direction of the pressing shaft 5, so that the first elastic sheet 6, the second elastic sheet 7, the mute contact and the circuit board 2 form a loop. Because one end of the second elastic sheet 7 is fixed on the mute contact, and the other end of the second elastic sheet is positioned in the space, the deformation of the first elastic sheet 6 can be reduced, so that the communication of the loop can be realized, the service life of the first elastic sheet 6 is prolonged, and the contact between the suspension end 62 and the second elastic sheet 7 can be simpler, so that the first elastic sheet 6, the second elastic sheet 7, the mute contact and the circuit board 2 can form the loop only by contacting the suspension end 62 with the second elastic sheet 7, and the suspension end 62 is not required to be contacted with the mute contact, thereby effectively increasing the efficiency of forming the loop. Of course, after the pressure on the keycap 9 is removed, the first elastic sheet 6 resets, and the loop is disconnected. In addition, it may be exemplarily set up that: the second elastic sheet 7 may be fixed to the another copper exposing area 21 by a screw (e.g., a screw), in this embodiment, it only needs to be satisfied that the second elastic sheet 7 and the another copper exposing area 21 always form an electrical connection, and any fixing manner therebetween falls within the protection scope of the present invention.
Optionally, one end of the second elastic sheet 7, which is far away from the mute contact, extends towards the first elastic sheet 6 to be close to the first elastic sheet 6, so that the first elastic sheet 6 can be abutted against the second elastic sheet 7 by further reducing the deformation of the first elastic sheet 6.
Optionally, fig. 9 is a schematic structural diagram of the fixing plate 8, and as shown in fig. 1, fig. 2 and fig. 9, the fixing plate 8 is clamped between the first elastic sheet 6 and the second elastic sheet 7, an end portion of the second elastic sheet 7 far away from the circuit board 2 is set as an attaching end 71, the attaching end 71 and the suspending end 62 are located on the same side of the fixing plate 8, the attaching end 71 is attached to the fixing plate 8, and a projection of the attaching end 71 intersects with a projection of the suspending end 62 on a plane perpendicular to a moving direction of the pressing shaft 5.
Namely, in the moving direction of the pressing shaft 5, the floating end 62, the attaching end 71, the fixing piece 8 and the mute contact are distributed in sequence. And the fixing piece 8 is clamped between the first elastic piece 6 and the second elastic piece 7. And because the attaching end 71 is attached to the fixing plate 8, and the projection of the attaching end 71 intersects with the projection of the suspending end 62 on the plane perpendicular to the moving direction of the pressing shaft 5, when the first elastic sheet 6 is deformed under the action of the pressing shaft 5 until the suspending end 62 abuts against the second elastic sheet 7, the suspending end 62 abuts against the attaching end 71 on the second elastic sheet 7, and the attaching end 71 is pressed by the suspending end 62. The attaching end 71 is attached to the fixing piece 8, and the fixing piece 8 is clamped between the first elastic piece 6 and the second elastic piece 7, so that the fixing piece 8 can support the attaching end 71 to prevent the second elastic piece 7 from deforming or greatly deforming under the pressure of the first elastic piece 6, and the service life of the second elastic piece 7 is prolonged. Meanwhile, when the suspension end 62 abuts against the fitting end 71 fitted on the fixing plate 8, the movement path of the suspension end 62 is limited, and the deformation of the first elastic sheet 6 can be limited, so that the service life of the first elastic sheet 6 is prolonged.
Optionally, fig. 3 is a schematic structural diagram of the base 3 in the present invention, and as can be seen from fig. 1 to 3, the mute key assembly further includes the base 3 which is arranged in a cylindrical shape, a transverse plate 34 is fixed on an inner wall of the base 3, the transverse plate 34 is arranged in a sealing manner with the inner wall of the base 3, and the base 3 is divided into an upper cavity and a lower cavity by the transverse plate 34 along the length direction of the pressing shaft 5, that is, the cross section of the base 3 is arranged in an "H" shape. Preferably, the cross plate 34 is hermetically sealed with the inner wall of the base 3. Further, waterproof hole 33 has been seted up on diaphragm 34 just waterproof hole 33 is equipped with waterproof, locate according to 5 covers of axle waterproof hole 33, be in according to axle 5 follow in the waterproof hole 33 the thickness direction reciprocating motion of diaphragm 34, down the cavity side the tip of base 3 with stationary blade 8 constitutes detachable fixed connection, suspension end 62 reaches laminating end 71 all is located down in the cavity. Therefore, when the mute key assembly is installed in the casing, the floating end 62, the first elastic sheet 6 where the floating end is located, the attaching end 71 where the floating end is located, and the second elastic sheet 7 where the floating end is located can be effectively prevented from being affected with damp through the sealing arrangement and the waterproof piece among the base 3, the transverse plate 34 and the inner wall of the base 3, so that the mute key assembly is safely used, and the service lives of the first elastic sheet 6 and the second elastic sheet 7 and the service life of the mute key assembly can be prolonged. In addition, the base 3 is a two-shot injection molding piece, firstly, the cavity on the periphery of the base 3 and the transverse plate 34 on the inner wall are injection molded by PC + 20% GF or PA + 40% GF material, and then the middle silica gel or TPU interlayer on the waterproof hole 33 of the transverse plate 34 is injection molded for the second time, namely the two-shot injection molding waterproof piece.
Optionally, as can be seen from fig. 1 to 3 and 9, two fixing columns 31 are respectively disposed on two sides of the bottom 53 of the base 3, two mounting holes 61 are also respectively disposed between two ends of the first elastic sheet 6 and the second elastic sheet 7, the two mounting holes 61 of the first elastic sheet 6 are sleeved on the two fixing columns 31 on one side of the bottom 53 of the base 3, and the two mounting holes 61 of the second elastic sheet 7 are sleeved on the two fixing columns 31 on the other side of the bottom 53 of the base 3. The first elastic sheet 6 and the second elastic sheet 7 are fixed, so that the abutting process of the first elastic sheet 6 and the second elastic sheet 7 is more stable, and the stability of the output signal of the mute key assembly is ensured.
Optionally, fig. 6 is a three-dimensional schematic view of the first elastic sheet 6; fig. 7 is a side view of the first elastic sheet 6. As can be seen from fig. 1, 2, 6 and 7, the first elastic sheet 6 is a conductor, two mounting holes 61 are disposed between two ends of the first elastic sheet 6, one end of the first elastic sheet 6 extends obliquely to form a suspension end 62, a connecting line of the suspension end 62 and the mounting hole 61 is located on a plane, and an included angle of the mounting hole 61 on the plane is 135 °. And the other end of the first elastic sheet 6 is fixedly connected with the circuit board 2 to form electric connection.
Optionally, fig. 8 is a schematic structural diagram of the second elastic sheet 7, and as can be seen from fig. 1, fig. 2 and fig. 8, the second elastic sheet 7 is a conductor, two mounting holes 61 are formed between two ends of the second elastic sheet, and the attaching end 71 of the second elastic sheet is attached to the fixing piece 8. The other end is fixedly connected with the mute contact to form electric connection.
Optionally, as shown in fig. 1 and 2, the bottom 53 of the base 3 and the fixing plate 8 form a detachable fixed connection, fixing holes 81 corresponding to the fixing posts 31 one by one are formed at two ends of the fixing plate 8, the fixing holes 81 are matched with the fixing posts 31 one by one, and the first elastic sheet 6 and the second elastic sheet 7 are clamped between the fixing plate 8 and the base 3. The upper and lower sides of the fixing piece 8 are provided with mounting grooves 82, and the bottom 53 of the base 3 is also provided with clamping blocks 36 which correspond to the mounting grooves 82 in position one by one and are matched in size.
The waterproof member is made of an elastic material, in this embodiment, the waterproof member is made of a silica gel material, and in this embodiment, the manufacturing material of the waterproof member is not limited, and it is only necessary that the waterproof member meets the requirements of the present invention, and the waterproof member belongs to the protection scope of the present invention. The waterproof member may be a waterproof ring disposed in a ring shape, and is fixed to the edge of the waterproof hole 33. Of course, the waterproof member may be a waterproof layer that is filled with the waterproof holes 33. Therefore, when the waterproof hole 33 is extended out of the shaft 5, the waterproof layer deforms and protrudes out of the water drainage hole, when the waterproof layer abuts against the suspension end 62 of the first elastic sheet 6, pressure is transmitted to the suspension end 62 to extrude the suspension end 62, with the help of the waterproof layer, the waterproof function can be realized, the insulating effect can be further realized, and the side effect on a human body caused by the fact that the first elastic sheet 6 is electrically connected with the circuit board 2 is avoided.
Optionally, fig. 5 is a schematic structural view of the shaft 5 according to the present invention. According to fig. 5, the shaft 5 sequentially comprises a top part 51, a middle part 52 and a bottom part 53 along the length direction thereof, the area of the cross section of the middle part 52 is larger than the area of the waterproof hole 33, the bottom part 53 of the shaft 5 is sleeved on the waterproof hole 33, in fig. 5, the top part 51, the middle part 52 and the bottom part 53 are all square bodies, in this embodiment, the shape and the material of the shaft 5 are not limited, and only the requirement of the invention can be met, namely the shaft 5 belongs to the protection scope of the invention. By means of the fact that the area of the cross section of the middle portion 52 is larger than that of the waterproof hole 33, the middle portion 52 cannot penetrate through the limiting hole 44, the moving displacement of the pressing shaft 5 towards the suspension end 62 can be limited, namely the deformation displacement of the suspension end 62 is limited, the phenomenon that the deformation of the first elastic sheet 6 is too large is avoided, and the service life of the first elastic sheet 6 is prolonged.
Optionally, a first buffer made of an elastic material is filled between the middle portion 52 and the transverse plate 34. By means of the first buffer member, when the suspension end 62 is extruded by the pressing shaft 5 under the action of external force, the collision between the middle portion 52 of the pressing shaft 5 and the transverse plate 34 can be effectively buffered, so that the pressing shaft 5 and/or the transverse plate 34 are prevented from being deformed due to severe collision between the middle portion 52 of the pressing shaft 5 and the transverse plate 34, sound generated due to severe collision between the middle portion 52 of the pressing shaft 5 and the transverse plate 34 can be effectively reduced, and accordingly, the silencing effect can be further achieved. In the present embodiment, the material and structure of the first buffer member are not limited, and it is only necessary that the first buffer member meets the requirements of the present invention, and the present invention belongs to the protection scope of the present invention. Such as: first bolster is made by the silica gel material and is cubic setting, can further: the inner wall of the first buffer piece is provided with a plurality of cavities.
Optionally, fig. 4 is a schematic structural view of the fixing frame 4 in the present invention, and as can be seen from fig. 1, fig. 2 and fig. 4, the fixing frame 4 is detachably fixed at an end portion of the base 3 on the upper cavity side, a limiting hole 44 adapted to the top portion 51 is formed in the fixing frame 4, the top portion 51 is sleeved in the limiting hole 44, the top portion 51 reciprocates in the limiting hole 44 along the thickness direction of the transverse plate 34, and the cross-sectional area of the middle portion 52 is larger than the area of the limiting hole 44. The middle portion 52 cannot pass through the limiting hole 44, and the movement displacement of the pressing shaft 5 opposite to the floating end 62 can be limited. Because after the pressure on the pressing shaft 5 is removed, the first elastic sheet 6 resets to push the pressing shaft 5 to move reversely, the middle part 52 cannot extend into the limiting hole 44 through the size relation between the middle part 52 of the pressing shaft 5 and the pressing shaft 5, so that the movement displacement of the pressing shaft 5 towards the limiting hole 44 is limited, and the movement displacement of the pressing shaft 5 is controlled.
As can be seen from fig. 2 and 4, the fixing frame 4 includes a bottom plate 41 having the limiting hole 44, at least three sides of the bottom plate 41 extend to the same side to form side plates 43, and each of the side plates 43 is provided with a fixing member so that the side plates 43 and the side walls of the base 3 form a detachable fixed connection. 3 axle sections of base are rectangle setting, and base 3 is equipped with four lateral walls, and the outer wall of every lateral wall all is fixed with buckle 32, and wherein, the great two lateral walls of area are equipped with two blocks of buckles 32, and less lateral wall is equipped with a buckle 32. The fixing frame 4 is wrapped on the outer side wall of the base 3, and the fixing frame 4 is matched with the base 3 in shape, so that the four side plates 43 of the fixing frame 4 are provided with clamping grooves 42 at positions corresponding to the buckles 32, and the clamping grooves 42 and the buckles 32 form detachable fixed connection. However, in the present embodiment, the connection manner between the fixing frame 4 and the base 3 is not limited, and it is within the scope of the present invention to satisfy the requirement of the present invention.
Optionally, a second buffer made of an elastic material is filled between the middle portion 52 and the bottom plate 41. With the help of the second buffer member, after the external force is removed, the bottom plate 41 is pressed in the reset process of the press shaft 5, the second buffer member can effectively buffer the collision between the middle part 52 of the press shaft 5 and the bottom plate 41, the press shaft 5 and/or the bottom plate 41 is prevented from deforming due to the severe collision formed between the middle part 52 of the press shaft 5 and the bottom plate 41, the sound generated due to the severe collision between the middle part 52 of the press shaft 5 and the bottom plate 41 can also be effectively reduced, and therefore the mute effect can be further realized. In the present embodiment, the material and the structure of the second buffer member are not limited, and it is only necessary that the second buffer member meets the requirements of the present invention, and the present invention belongs to the protection scope of the present invention. Such as: the second bolster is made by the silica gel material and is cubic setting, can further: the inner wall of the second buffer piece is provided with a plurality of cavities.
Optionally, a waterproof ring 45 is fixed on the surface of the fixing frame 4 away from the base 3. Preferably, the waterproof ring 45 is made of silicone material, and in this embodiment, the material of the shaft 5 is not limited, and only needs to meet the requirement of the present invention, and thus, the present invention is within the protection scope of the present invention. In this way, the waterproof function can be effectively realized. When the mute key assembly is applied to the keypad, as can be seen from fig. 1 to 10, the keypad comprises the detachable fixed connection shell 1 and at least one mute key assembly, and the waterproof ring 45 can effectively play a waterproof function, so that the normal operation of the mute key assembly and the keypad is further ensured, and the failure rate is reduced. Optionally, threaded holes 35 matched with each other are formed in corresponding positions of the base 3 and the shell 1, and the base 3 and the shell 1 can be detachably and fixedly connected through threaded rods; the casing 1 is provided with a plurality of shaft holes corresponding to the mute key assemblies one by one, and the extending end of the pressing shaft 5 far away from the base 3 extends out of the shaft holes and is detachably and fixedly connected with the keycap 9.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (12)
1. A mute key assembly comprises a press shaft (5), wherein the press shaft (5) moves back and forth along the length direction of the press shaft, and the mute key assembly is characterized by further comprising a first elastic sheet (6), one end of the first elastic sheet (6) is fixed on a circuit board (2), the other end of the first elastic sheet (6) extends towards the direction far away from the circuit board (2) to form a suspension end (62), the projection of the suspension end (62) is intersected with the projection of the press shaft (5) on a plane perpendicular to the movement direction of the press shaft (5), and the press shaft (5) pushes the suspension end (62) to abut against a mute contact on the circuit board (2) along the length direction of the press shaft (5) so that the first elastic sheet (6), the mute contact and the circuit board (2) form a loop; be base (3) that the tube-shape set up, the inner wall of base (3) is fixed with diaphragm (34), diaphragm (34) with the sealed setting of inner wall of base (3) is followed according to the length direction of axle (5), diaphragm (34) will cavity and lower cavity are cut apart into in base (3), suspension end (62) are located down in the cavity, seted up on diaphragm (34) waterproof hole (33) just waterproof hole (33) are equipped with the waterproof part, locate according to axle (5) cover waterproof hole (33), be in according to axle (5) follow in waterproof hole (33) the thickness direction reciprocating motion of diaphragm (34).
2. The mute key assembly according to claim 1, further comprising a second spring plate (7) having a gap with the first spring plate (6), wherein one end of the second spring plate (7) is fixed to the mute contact, a projection of the second spring plate (7) intersects with a projection of the floating end (62) on a plane perpendicular to a moving direction of the pressing shaft (5), and the pressing shaft (5) pushes the floating end (62) to abut against the second spring plate (7) along a length direction thereof, so that the first spring plate (6), the second spring plate (7), the mute contact and the circuit board (2) form a loop.
3. The mute key assembly according to claim 2, wherein a fixing plate (8) is clamped between the first elastic sheet (6) and the second elastic sheet (7), an end portion, far away from the circuit board (2), of the second elastic sheet (7) is provided with an attaching end (71), the attaching end (71) and the suspending end (62) are located on the same side of the fixing plate (8), the attaching end (71) is attached to the fixing plate (8), and a projection of the attaching end (71) is intersected with a projection of the suspending end (62) on a plane perpendicular to a moving direction of the pressing shaft (5).
4. A mute key assembly as claimed in claim 3 characterised in that the end of the base (3) on the side of the lower cavity forms a detachable fixed connection with the securing tab (8), the abutting end (71) being located in the lower cavity.
5. The mute key assembly as claimed in claim 4, wherein the pressing shaft (5) comprises a top portion (51), a middle portion (52) and a bottom portion (53) in sequence along the length direction thereof, the cross-sectional area of the middle portion (52) is larger than the area of the waterproof hole (33), and the bottom portion (53) of the pressing shaft (5) is sleeved on the waterproof hole (33).
6. The mute key assembly according to claim 5, wherein a fixing frame (4) is detachably fixed at the end of the base (3) at the upper cavity side, a limiting hole (44) matched with the top portion (51) is formed in the fixing frame (4), the top portion (51) is sleeved in the limiting hole (44), the top portion (51) reciprocates in the limiting hole (44) along the thickness direction of the transverse plate (34), and the area of the cross section of the middle portion (52) is larger than that of the limiting hole (44).
7. The mute key assembly as claimed in claim 6, wherein the fixing frame (4) comprises a bottom plate (41) provided with the limiting hole (44), at least three sides of the bottom plate (41) extend to the same side to form side plates (43), and each side plate (43) is provided with a fixing component so that the side plate (43) and the side wall of the base (3) form a detachable fixed connection.
8. A mute key assembly as claimed in claim 7, characterised in that a waterproof ring (45) is fixed to the surface of the mount (4) remote from the base (3).
9. The mute key assembly as claimed in claim 7, wherein the waterproof member is made of an elastic material and is a waterproof ring disposed in a ring shape or a waterproof layer filled with the waterproof holes (33).
10. A mute key assembly as claimed in claim 5, characterised in that a first buffer of resilient material is filled between the central portion (52) and the cross plate (34).
11. A mute key assembly as claimed in claim 7, characterised in that a second buffer of resilient material is filled between the central portion (52) and the bottom plate (41).
12. A keyboard is characterized by comprising a detachable fixedly connected shell (1) and at least one mute key assembly as claimed in any one of claims 1 to 11, wherein the shell (1) is provided with a plurality of shaft holes corresponding to the mute key assemblies one by one, and an extending end of a press shaft (5) far away from a base (3) extends out of the shaft holes and is detachably and fixedly connected with a keycap (9).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710564533.6A CN109256292B (en) | 2017-07-12 | 2017-07-12 | Mute key assembly and key board applying same |
| PCT/CN2018/091462 WO2019011103A1 (en) | 2017-07-12 | 2018-06-15 | Mute key assembly and keyboard having same |
| JP2020501176A JP6964177B2 (en) | 2017-07-12 | 2018-06-15 | Mute key parts and keyboard with the mute key parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710564533.6A CN109256292B (en) | 2017-07-12 | 2017-07-12 | Mute key assembly and key board applying same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109256292A CN109256292A (en) | 2019-01-22 |
| CN109256292B true CN109256292B (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710564533.6A Active CN109256292B (en) | 2017-07-12 | 2017-07-12 | Mute key assembly and key board applying same |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6964177B2 (en) |
| CN (1) | CN109256292B (en) |
| WO (1) | WO2019011103A1 (en) |
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| CN106877853A (en) * | 2015-12-14 | 2017-06-20 | 致伸科技股份有限公司 | Optical switch keyboard |
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| EP1014406B1 (en) * | 1997-04-28 | 2004-11-10 | Idec Izumi Corporation | Push-button switch, and operating device and teaching pendant comprising the same |
| JP2003057725A (en) * | 2001-08-17 | 2003-02-26 | Fuji Photo Film Co Ltd | Switching device for stroboscope |
| JP2006179361A (en) * | 2004-12-24 | 2006-07-06 | Casio Comput Co Ltd | Keyboard |
| JP5942440B2 (en) * | 2012-01-20 | 2016-06-29 | 株式会社富士通ゼネラル | Air conditioner |
| CN103379757B (en) * | 2012-04-20 | 2016-05-11 | 富泰华工业（深圳）有限公司 | Electronic installation |
| CN203260516U (en) * | 2013-04-28 | 2013-10-30 | 梅特勒-托利多(常州)测量技术有限公司 | Replaceable membrane keyboard |
| JP2015012563A (en) * | 2013-07-02 | 2015-01-19 | パナソニック株式会社 | Portable terminal |
| CN204130407U (en) * | 2014-07-08 | 2015-01-28 | 东莞市凯华电子有限公司 | Super-thin keyboard switch |
| CN203983095U (en) * | 2014-07-22 | 2014-12-03 | 乐清市兴辉电子有限公司 | Electric motor car push-button switch |
| CN204834425U (en) * | 2015-08-12 | 2015-12-02 | 余正明 | Big contact switch |
| JP2017091917A (en) * | 2015-11-13 | 2017-05-25 | レノボ・シンガポール・プライベート・リミテッド | Switch device and electronic apparatus |
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2017
- 2017-07-12 CN CN201710564533.6A patent/CN109256292B/en active Active
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2018
- 2018-06-15 JP JP2020501176A patent/JP6964177B2/en active Active
- 2018-06-15 WO PCT/CN2018/091462 patent/WO2019011103A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53100859A (en) * | 1977-02-15 | 1978-09-02 | Citizen Watch Co Ltd | Switch construction for electronic wrist watch |
| CN202917359U (en) * | 2012-12-06 | 2013-05-01 | 浪潮乐金数字移动通信有限公司 | Cellphone mute button spring sheet |
| CN104796517A (en) * | 2014-01-22 | 2015-07-22 | 上海智朴科技发展有限公司 | Key triggering structure, functional operation triggering method and system, and terminal |
| CN204927139U (en) * | 2015-08-18 | 2015-12-30 | 东莞市名键电子科技有限公司 | Silence keyboard button |
| CN106877853A (en) * | 2015-12-14 | 2017-06-20 | 致伸科技股份有限公司 | Optical switch keyboard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109256292A (en) | 2019-01-22 |
| JP2020526890A (en) | 2020-08-31 |
| JP6964177B2 (en) | 2021-11-10 |
| WO2019011103A1 (en) | 2019-01-17 |
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