WO2017032219A1

WO2017032219A1 - Keyboard switch of x-frame structure

Info

Publication number: WO2017032219A1
Application number: PCT/CN2016/093994
Authority: WO
Inventors: 吴福喜
Original assignee: 东莞市凯华电子有限公司
Priority date: 2015-08-27
Filing date: 2016-08-08
Publication date: 2017-03-02
Also published as: CN106486300B; CN106486300A

Abstract

A keyboard switch (100) of an X-frame structure (170) comprises a base (110), a static contact (120), a dynamic contact (130), an upper cover (140), a key (150) connected to the static contact (120) for controlling the movement of the dynamic contact (130), and a reset spring (160); and the keyboard switch (100) further comprises an X-frame structure (170) and an accommodation portion (180). The X-frame structure (170) comprises a first connection frame (171) and a second connection frame (172), and the first connection frame (171) and the second connection frame (172) are rotatably built in the accommodation portion (180) separately. The first connection frame (171) comprises a first balancing pole (171a) and two first connection portions (171b) mounted on the first balancing pole (171a) in a sleeving mode, and the second connection frame (172) comprises a second balancing pole (172a) and two second connection portions (172b) mounted on the second balancing pole (172a) in a sleeving mode. Convex columns (171c) are respectively disposed on the surfaces, of the two first connection portions (171b), that are opposite to each other. Round holes (172c) are respectively provided on the surfaces, of the two second connection portions (172b), that are opposite to each other. The convex columns (171c) can be inserted into the round holes (172c), so that two ends of the first connection frame (171) and two ends of the second connection frame (172) form two X-shaped structures. The keyboard switch (100) can prevent the keys (150) from being oblique and stuck, and the keyboard switch (100) is labor-saving in operation, convenient to use, and has good finger pressing sense of touch.

Description

Keyboard switch with X frame structure

Technical field

The invention relates to the field of keyboard switch technology, in particular to a keyboard switch with an X frame structure.

Background technique

The keyboard switch, as the name implies, is a switch applied and mounted on a keyboard. The main structure of the switch includes a base, an upper cover, a static contact piece, a movable contact piece and a button, and the upper cover and the base are enclosed to form a capacity. The static contact piece, the movable contact piece and the button are disposed in the accommodating cavity, and one end of the button is exposed outside the accommodating cavity, and the button is pressed up and down to move the button up and down, and then the button acts on the movable contact piece. The movable contact piece is connected or disconnected from the static contact piece to realize opening and closing of the keyboard.

The traditional keyboard switch is mostly a positioning post that protrudes downward from the inner edge of the button, and is vertically telescoped at the opening of the base for triggering the circuit contact. The contact position of the button positioning column of the keyboard switch and the base is small, and the button is Tilting or keying is easy to occur during pressing. On the one hand, the buttons often appear stuck, and the use is not smooth and unstable. On the other hand, the finger pressure is not good enough during operation, and the user's requirements cannot be met. In the third aspect, The button member is in the form of a guide post, so that the entire product is thicker, and the button member is mounted on the bottom center of the key cap. When the finger only acts on one side edge of the key cap, the button member cannot be smoothly pressed, and thus the static can not be realized. The contact between the contact and the movable contact is inconvenient to use.

Summary of the invention

In order to solve the above problems, the present invention provides a keyboard switch with an X-frame structure that can prevent the tilting of the button and the key, and is easy to operate, easy to use, and good in finger touch.

The technical solution adopted by the present invention comprises: a base, a static contact piece, a movable contact piece, an upper cover, a button for controlling the movement of the movable contact piece and contacting the static contact piece, and a reset for resetting the button after being stressed. a spring is disposed on the base, and the static contact piece and the movable contact piece are disposed on the base, and one end of the button is movably mounted on the base on the upper and lower sides, and the upper end is inserted through the upper cover. The upper and lower ends of the return spring respectively abut the button and the base; further comprising an X-frame structure for preventing the button from tilting and a receiving portion disposed on the base for accommodating the X-frame structure; the X frame The structure includes a first connecting bracket and a second connecting bracket, wherein the first connecting bracket and the second connecting bracket are respectively rotatably embedded in the receiving portion; the first connecting bracket includes a first balance bar and is set in the first Two first connecting portions on the balance bar, the second connecting frame includes a second balance bar and two second connecting portions disposed on the second balance bar, two A protrusion is disposed on the opposite surface of the first connecting portion, and a plurality of circular holes are formed on opposite sides of the second connecting portion, and the protruding post can be inserted into the circular hole to make the first connecting frame The two ends and the two ends of the second connecting frame form two X-shaped structures; the receiving portion includes a first rotating slot disposed on opposite sides of the base and a second rotating slot disposed on the opposite sides of the base.

A further improvement of the above technical solution is that the first balance bar includes a first rod body and two first extension arms, and the two first extension arms are respectively integrally bent and extended from both ends of the first rod body. The first connecting arms of the two first extending arms are respectively bent to extend with the first connecting arms, the two first connecting arms are opposite to each other, and the two first connecting portions are respectively sleeved on the two first connecting arms; The second balance bar includes a second rod body and two second extension arms, and the two second extension arms are integrally bent and extended from two ends of the second rod body, and the tail ends of the two second extension arms are respectively The second connecting arm is opposite to each other, and the two second connecting portions are respectively sleeved on the two second connecting arms, and a bending is arranged in the center of the second rod body. The first rod body is rotatably embedded in the first rotation groove, and the two first connection arms are rotatably embedded in the corresponding second rotation grooves, and the second rod body is rotatably fitted In the first rotating slot, and the two second connecting arms are respectively rotatably embedded in the corresponding Two rotation grooves.

A further improvement of the above technical solution is that the first connecting portion is located inside the button, and the second connecting portion is located outside the button.

A further improvement of the above technical solution is that the first connecting portion is located in the button and the second connecting portion is located in the button.

A further improvement of the above technical solution is that the first connecting portion is located outside the button and the second connecting portion is located outside the button.

A further improvement of the above technical solution is that the first connecting portion is located outside the button and the second connecting portion is located in the button.

A further improvement of the above technical solution is that two opposite sides of the upper cover are respectively provided with two fastening teeth, and two opposite sides of the base corresponding to the two fastening teeth protrude outward to form a protrusion. The buckle teeth can be fastened on both sides of the protrusion, and the upper cover and the base are fastened to each other by the fastening teeth and the protrusion.

A further improvement of the above technical solution is that the upper cover and the base are fastened to form a first receiving cavity and a second receiving cavity; the static contact piece and the movable contact piece are located in the first receiving cavity, and the button and the return spring are located a second receiving cavity; the first balance bar and the second balance bar are located in the second receiving cavity.

A further improvement of the above technical solution is that the button is provided with a guiding hole, and correspondingly, the base is provided with a guiding column, and the guiding hole is sleeved outside the guiding column and moves up and down along the guiding column .

A further improvement of the above technical solution is that the static contact piece is provided with a static contact and a first soldering leg, and the movable contact piece is provided with a movable contact and a second soldering leg, the static contact and the movable contact Correspondingly, the first soldering leg and the second soldering leg extend out of the base.

The beneficial effects of the invention are:

1. An X-frame structure for preventing the tilting of the button is provided, and the button is positioned by the first connecting frame and the second connecting frame of the X-frame structure, and the two ends of the first connecting frame and the second connecting frame are The two ends form two X-shaped structures. When the four corners of the button are pressed, the two X-shaped structures can make the central axis of the button always perpendicular to the central axis of the base, so that the button is not prone to tilt or card during the pressing process. The key ensures that the switch is in a process of pressing, the operation is labor-saving, the hand feels smooth, and the finger pressure feels good.

2. The first connecting frame and the second connecting frame are symmetrically disposed on both sides of the button, and when the user tilts the pressing button, the pressing of the first balance bar of the first connecting frame and the second balance bar of the second connecting frame cancels the pressing The component of the pressure in the oblique direction further prevents the button from tilting or snapping, ensuring smoothness of use.

3. The first balance bar of the first connecting frame and the second balance bar of the second connecting frame are both rotatably and reciprocally movable on both sides of the button, and are rotatably mounted on the base through the two connecting rods. The friction between the first connecting frame and the second connecting frame and the button and the base is small, and the pressing switch operation is more labor-saving while avoiding the tilting of the button, thereby further ensuring smoothness of use.

4. The upper cover is provided with a buckled tooth, and the base correspondingly forms a protrusion, and the buckle tooth can be buckled on both sides of the protrusion, and the upper cover and the base are fastened to each other by the buckle teeth and the protrusion, and the two are tightly combined to avoid the button shaking. To further prevent the button from tilting or snapping.

5. The upper cover and the base are fastened to form a first receiving cavity and a second receiving cavity, wherein the button is located in the second receiving cavity, and the first balance bar and the second balance bar are also located in the second receiving cavity, and the contact between the button and the base The area is small, and the first balance bar and the second balance bar ensure that the button does not tilt, and the friction force is small when the button moves up and down, and the operation is labor-saving.

6. A positioning portion is arranged in the middle of the button, and a positioning hole is arranged on the base. By positioning the positioning portion in the positioning hole, the button is positioned from both sides to further prevent the tilting card key from being moved up and down to ensure the use of the button. Smoothness.

7. The button is provided with a guiding hole. Correspondingly, the guiding column is arranged on the base. The guiding hole is sleeved on the outside of the guiding column and moves up and down along the guiding column, and the guiding hole is sleeved on the outside of the guiding column. The button is positioned from the center to ensure the axial movement of the button, further preventing the tilt or key from being moved up and down to ensure smooth use.

DRAWINGS

1 is a perspective view of a keyboard switch with an X-frame structure according to the present invention;

2 is an exploded view of a keyboard switch with an X-frame structure according to the present invention;

Figure 3 is a cross-sectional view of the keyboard switch with the X frame structure of the present invention;

Figure 4 is a top plan view of the keyboard switch with the X frame structure of the present invention;

Figure 5 is an exploded view of the keyboard switch with the X frame structure of the present invention.

detailed description

The invention will now be further described with reference to the accompanying drawings.

1 to 5 are respectively a perspective view, an exploded view, a cross-sectional view, a plan view, and an exploded view of the present invention. The keyboard switch 100 with the X-frame structure 170 includes a base 110, a static contact piece 120, a movable contact piece 130, an upper cover 140, a button 150 for controlling the movement of the movable contact piece 130 to be in contact with the static contact piece 120, and a button A return spring 160 that is reset after 150 forces.

The upper cover 140 is fastened to the base 110, and the static contact piece 120 and the movable contact piece 130 are disposed on the base 110. One end of the button 150 can be movably mounted on the base 110, and the other end is passed through the upper cover 140. The return spring 160 The upper and lower ends are respectively abutted with the button 150 and the base 110; further comprising an X-frame structure 170 for preventing the button 150 from tilting, and a receiving portion 180 disposed on the base for receiving the X-frame structure, the receiving portion 180 The first rotating groove 181 disposed on opposite sides of the base and the second rotating groove 182 disposed on opposite sides of the base are included.

The X frame structure 170 includes a first connecting frame 171 and a second connecting frame 172; the first connecting frame 171 includes a first balance bar 171a and two first connecting portions 171b fitted on the first balance bar 171a, and the second connecting frame The 172 includes a second balance bar 172a and two second connecting portions 172b disposed on the second balance bar 172a. The opposite faces of the two first connecting portions 171b are respectively provided with a protrusion 171c and two second connecting portions. A circular hole 172c is defined in the opposite surface of the 172b. The protruding post 171c can be inserted into the circular hole 172c such that both ends of the first connecting frame 171 and the two ends of the second connecting frame 172 form two X-shaped structures.

The first balance bar 171a includes a first rod body 171a1 and two first extension arms 171a2. The two first extension arms 171a2 are integrally bent and extended from the two ends of the first rod body 171a1, and the two first extension arms 171a2 are respectively The first end connecting arm 171a3 is bent away from the tail end, the two first connecting arms 171a3 are opposite to each other, and the two first connecting portions 171b are respectively sleeved on the two first connecting arms 171a3; the second balance bar 172a The second rod body 172a1 and the two second extension arms 172a2 are respectively integrally extended from the two ends of the second rod body 172a1, and the tail ends of the two second extension arms 172a2 are bent. The second connecting arm 172a3 is extended from the second connecting arm 172a3, and the two second connecting portions 172b are respectively sleeved on the two second connecting arms 172a3, and a bent portion is disposed in the center of the second rod 172a1; The first connecting frame 171 and the second connecting frame 172 are symmetrically disposed between the button 150 and the base 110. The first rod body 171a1 is rotatably fitted in the first rotating slot 181, and the two first connecting arms 171a3 are respectively rotatable. Embedded in the second rotation groove 182, the second rod body 172a1 Rotatably fitted to the first rotation groove 181, and the two second link arms 172a3 are rotatably fitted in the second groove 182 is rotated.

In this embodiment, the first connecting portion 171b is located in the button 150, and the second connecting portion 172b is located outside the button 150. In other embodiments, the first connecting portion 171b is located in the button 150, and the second connecting portion 172b is located in the button 150. Or the first connecting portion 171b is located outside the button 150, the second connecting portion 172b is located outside the button 150; or the first connecting portion 171b is located outside the button 150, and the second connecting portion 172b is located in the button 150.

The two opposite sides of the upper cover 140 are respectively disposed with two fastening teeth 141. The two opposite sides of the base 110 protrude outwardly from the two fastening teeth 141 to form a protrusion 111, and the fastening teeth 141 can be buckled on the convex surface. From the two sides of the 111, the upper cover 140 and the base 110 are fastened to each other by the fastening teeth 141 and the projections 111.

The upper cover 140 and the base 110 are fastened to form a first receiving cavity and a second receiving cavity; the static contact piece 120 and the movable contact piece 130 are located in the first receiving cavity, and the button 150 and the return spring 160 are located in the second receiving cavity; the first balance bar The 171a and the second balance bar 172a are located in the second receiving chamber.

The button 150 is provided with a guiding hole 151. Correspondingly, the base 110 is provided with a guiding post 112. The guiding hole 151 is sleeved outside the guiding post 112 and moves up and down along the guiding post 112.

The static contact piece 120 is provided with a static contact 121 and a first soldering leg 122. The movable contact piece 130 is provided with a movable contact 131 and a second soldering leg 132. The static contact 121 and the movable contact 131 are correspondingly arranged, first Both the soldering foot 122 and the second soldering leg 132 extend out of the base 110.

An X-frame structure 170 for preventing the tilt of the button 150 is provided, and the button 150 is positioned by the first connecting frame 171 and the second connecting frame 172 of the X-frame structure 170, and the two ends of the first connecting frame 171 and the second The two ends of the connecting frame 172 constitute two X-shaped structures. When the four corners of the button 150 are pressed, the two X-shaped structures can make the central axis of the button 150 always perpendicular to the central axis of the base 110, so that during the pressing process, The button 150 is not prone to tilting or snapping, thereby ensuring that the switch is in a process of pressing, the operation is labor-saving, the hand feels smooth, and the finger pressure feels good.

The first connecting frame 171 and the second connecting frame 172 are symmetrically disposed on both sides of the button 150. When the user tilts and presses the button 150, the first balance bar 171a of the first connecting frame 171 and the second balance bar of the second connecting frame 172 pass through. The rotation of the 172a counteracts the component of the pressing force in the oblique direction, further preventing the button 150 from tilting or snapping, and ensuring smoothness of use.

The first balance bar 171a of the first connecting frame 171 and the second balance bar 172a of the second connecting frame 172 are both rotatably and reciprocally movable on both sides of the button 150 by two connecting arms, and are rotatable through the two rods. Mounted on the base 110, the friction between the first connecting frame 171 and the second connecting frame 172 and the button 150 and the base 110 is small, and the pressing switch 150 is operated while avoiding the tilting of the button 150, thereby further ensuring smooth use. Sex.

The upper cover 140 is provided with a fastening 141. The base 110 is correspondingly formed with a protrusion 111. The fastener 141 can be fastened to the two sides of the protrusion 111. The upper cover 140 and the base 110 are fastened to each other by the fastening teeth 141 and the protrusion 111. The two are closely combined to prevent the button 150 from shaking, further preventing the button 150 from being tilted or stuck.

The upper cover 140 and the base 110 are fastened to form a first receiving cavity and a second receiving cavity. The button 150 is located in the second receiving cavity, and the first balance bar 171a and the second balance bar 172a are also located in the second receiving cavity, and the button 150 and the base are The contact area between the 110s is small, and the first balance bar 171a and the second balance bar 172a ensure that the button 150 does not tilt, while the button 150 moves up and down with less friction, and the operation is labor-saving.

A positioning portion is disposed in the middle of the button 150. A positioning hole is disposed on the base 110. The positioning portion is embedded in the positioning hole to position the button 150 from both sides, thereby further preventing the tilting card from being pressed when the button 150 moves up and down, thereby ensuring Smoothness of use.

The button 150 is provided with a guiding hole 151. Correspondingly, the base 110 is provided with a guiding post 112. The guiding hole 151 is sleeved outside the guiding post 112 and moves up and down along the guiding post 112. It is disposed outside the guiding column 112, and positions the button 150 from the center to ensure the axial movement of the button 150. Further preventing the tilting or keying of the button 150 when moving up and down, ensuring smoothness of use.

The assembly process of the present invention is:

First, the static contact piece 120 and the movable contact piece 130 are mounted on the base 110 such that the first welding leg 122 of the static contact piece 120 and the second welding leg 132 of the movable contact piece 130 both protrude downwardly from the base 110; secondly, The return spring 160 abuts against the guiding hole 151 of the button 150, and the guiding hole 151 can be moved up and down outside the guiding post 112, and the return spring 160 is also disposed outside the guiding post 112, and the lower end of the return spring 160 The positioning portion of the button 150 is also movably embedded in the positioning hole of the base 110, so that one end of the button 150 can be moved up and down on the base 110; then, the first connecting frame 171 and the first connecting frame are The first connecting arm 171a3 and the second connecting arm 172a3 of the 171 are rotatably embedded in the corresponding second rotating slots 182, respectively, and the first rod 171a1 and the second rod 172a1 are rotatably embedded in the first rotating slot 181. The protrusion 171c is inserted into the circular hole 172c, so that both ends of the first connecting frame 171 and the two ends of the second connecting frame 172 form two X-shaped structures; finally, the upper cover 140 is put on, so that the buckle The tooth 141 is engaged with the protrusion 111, and the upper cover 140 is fixedly mounted on the base 110, and at the same time The other end 150 of the key 140 disposed through the upper cover.

The working principle of the invention is:

In the original state, the button 150 is pressed against the movable contact piece 130 so that the movable contact 131 of the movable contact piece 130 and the stationary contact 121 on the static contact piece 120 are kept separated, and the circuit at this time is in an off state. When the four corners of the button 150 are pressed, the two X-shaped structures can make the central axis of the button 150 always perpendicular to the central axis of the base 110, so that during the pressing process, the button 150 is less prone to tilting or snapping, thereby ensuring the switch During the pressing process, the operation is labor-saving, the hand feels smooth, and the finger pressure feels good.

When the force acts on the button 150, the button 150 is forced to move from the top to the bottom, and is decoupled from the pressing of the movable contact piece 130. The movable contact piece 130 is opened by the self-elastic force to make the movable contact 131 and the movable contact 131 The static contact 121 contacts, thereby conducting the circuit; the first connecting frame 171 and the first connecting frame 171 are rotated by the button 150, the first rod body 171a1 and the second rod body 172a1 are rotated, and the first connecting arm 171a3 is rotated and Moving to the right, the second link arm 172a3 rotates and moves to the left.

When the force disappears, the button 150 is automatically reset upward by the return spring 160, so that the button 150 presses the movable contact 130 again, and the movable contact 131 and the static contact 121 are separated again to open the circuit, and the first rod body The 171a1 and the second rod 172a1 are reversely rotated, and the first connecting arm 171a3 is also reversely rotated and directed When the left movement is reset, the second connecting arm 172a3 also rotates in the reverse direction and moves to the right to reset.

During the downward movement of the button 150, the button 150 is positioned through the two connecting frames, so that the button 150 is not prone to tilting or snapping during the pressing process, thereby ensuring that the switch is operated during the pressing process, and the operation is labor-saving. Use smooth and finger pressure feels good. At the same time, the guiding hole 151 is sleeved on the outside of the guiding column 112, the button 150 is positioned from the center, and the positioning portion is embedded in the positioning hole, and the button 150 is positioned from both sides to ensure the axial movement of the button 150, further Prevents the tilt or key when the button 150 moves up and down, ensuring smoothness of use.

The above-mentioned embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

The keyboard switch with the X frame structure includes a base, a static contact piece, a movable contact piece, an upper cover, a button for controlling the movable contact piece to contact with the static contact piece, and a return spring for resetting the button after being pressed by the force The upper cover is fastened to the base, and the static contact piece and the movable contact piece are disposed on the base, and one end of the button is movably mounted on the base on the upper and lower sides, and the other end is disposed on the base a cover, the upper and lower ends of the return spring respectively abut the button and the base; further comprising an X-frame structure for preventing the button from tilting and a receiving portion disposed on the base for accommodating the X-frame structure; The X-frame structure includes a first connecting frame and a second connecting frame, the first connecting frame and the second connecting frame are respectively rotatably embedded in the receiving portion; the first connecting frame comprises a first balance bar and a set Two first connecting portions on the first balance bar, the second connecting frame includes a second balance bar and two second connecting portions disposed on the second balance bar, and the two first connecting portions are opposite a convex column is arranged on the back surface, and the two second connecting portions are opposite The pair of faces are provided with a circular hole, and the protrusions can be inserted into the circular holes such that both ends of the first connecting frame and the two ends of the second connecting frame form two X-shaped structures; the receiving portion includes the setting a first rotating slot on opposite sides of the base and a second rotating slot disposed on opposite sides of the base.
The keyboard switch with an X-frame structure according to claim 1, wherein the first balance bar comprises a first rod body and two first extension arms, and the two first extension arms are respectively from the first Both ends of the rod body are integrally bent and extended, and the tail ends of the two first extending arms are bent and extended to have a first connecting arm, and the two first connecting arms are opposite to each other, and the two first connecting portions are respectively sleeved Provided on the two first connecting arms; the second balance bar includes a second rod body and two second extending arms, and the two second extending arms are integrally bent and extended from the two ends of the second rod body The second ends of the two extension arms are each bent to extend out of the second connecting arm, and the two second connecting arms are opposite to each other, and the two second connecting portions are respectively sleeved on the two second connecting arms. a center of the second rod body is provided with a bent portion; the first rod body is rotatably embedded in the first rotating groove, and the two first connecting arms are rotatably embedded in the corresponding second rotating grooves, respectively. The second rod body is rotatably embedded in the first rotating groove, and the two second connecting arms are Respectively rotatably fitted in a corresponding rotation of the second groove.
The keyboard switch with an X-frame structure according to claim 2, wherein the first connecting portion is located inside the button, and the second connecting portion is located outside the button.
The keyboard switch with an X-frame structure according to claim 2, wherein the first connecting portion is located in the button, and the second connecting portion is located in the button.
The keyboard switch with an X-frame structure according to claim 2, wherein the first connecting portion is located outside the button, and the second connecting portion is located outside the button.
The keyboard switch with an X-frame structure according to claim 2, wherein the first connecting portion is located outside the button, and the second connecting portion is located in the button.
The keyboard switch with an X-frame structure according to claim 3 or 4 or 5 or 6, wherein two opposite sides of the upper cover are respectively provided with two fastener teeth, and two opposite sides of the base correspond to each other. A protrusion is formed outwardly between the two fastener teeth, and the buckle teeth can be fastened on both sides of the protrusion, and the upper cover and the base are fastened to each other by the fastening teeth and the protrusion.
The keyboard switch with an X-frame structure according to claim 7, wherein the upper cover and the base are fastened to form a first receiving cavity and a second receiving cavity; the static contact piece and the movable contact piece are located at the first The receiving cavity, the button and the return spring are located in the second receiving cavity; the first balance bar and the second balance bar are located in the second receiving cavity.
The keyboard switch with an X-frame structure according to claim 8, wherein the button is provided with a guiding hole, and correspondingly, the base is provided with a guiding column, and the guiding hole is sleeved on the guiding The outside of the column is pushed up and down along the guide column.
The keyboard switch with an X-frame structure according to claim 9, wherein the static contact piece is provided with a static contact and a first soldering leg, and the movable contact piece is provided with a movable contact and a second soldering leg. The static contact and the movable contact are correspondingly disposed, and the first welding leg and the second welding leg both protrude outside the base.