TWM568488U - Ultra-thin button switch with high balance - Google Patents

Abstract

The invention relates to an ultra-thin button switch with high balance, comprising a base, a receiving cavity is formed on the upper surface of the base, a conducting component is arranged in the receiving cavity, and a guiding core and a surrounding device are arranged on the base. The X-shaped balance frame on the periphery of the lead core is connected by a spring between the lower end of the lead core and the base; the X-type balance frame is mainly formed by the balance bar A and the balance bar B, and the balance bar A and the balance bar B are closed. The frame structure, and the X-shaped balance frame is surrounded by a closed structure; the balance bar A and the balance bar B form two intersections, and the two intersections divide the X-type balance frame into a lower embedded portion and an upper swing portion, and The end portion of the inserting portion is provided with a positioning block; a plurality of upper guiding blocks are convexly protruded on the inner side of the upper swinging portion, and a plurality of upper guiding blocks are protruded on the outer side of the guiding core and located directly below the upper guiding block Upper guide shaft. The new button switch has better balance effect, stronger stability and improved overall stability during the pressing process.

Description

Ultra-thin button switch with high balance

The invention relates to a key switch, in particular to an ultra-thin key switch with high balance.

Many operations of existing equipment require the use of a push button switch as an input means. The quality of the key switch determines the experience of the input device, and it is required to ensure a good hand feeling and service life. At the same time, the stability during use also has high requirements, and cannot be The card angle situation has occurred, and these technical problems are constantly improving, but still not ideal.

In the pressing process of the existing button switch, the internal structures are not tightly coupled, the interaction is uncoordinated, the pressing is unstable, and the stability is low.

In view of the above shortcomings, the object of the present invention is to provide an ultra-thin key switch with high balance, in which the balance effect is better, the stability is stronger, and the overall stability is improved.

The technical solution adopted by the present invention for achieving the above object is: an ultra-thin button switch having a high balance, comprising a base, the upper surface of the base is provided with a receiving cavity, and the receiving cavity is provided with a conducting component, The utility model further includes a lead core disposed on the base and an X-type balance frame disposed on the base and surrounding the periphery of the lead core, wherein the lower end of the lead core and the base are connected by a spring; The X-type balance frame is mainly set by a balance bar A and a balance bar B. The balance bar A and the balance bar B are both closed frame structures, and the X-shaped balance frame is entirely surrounded by a closed structure; the balance bar A and the balance bar B intersect to form two intersections, the two The intersection of the X-shaped balance frame is divided into a lower embedded portion embedded in the accommodating cavity and an upper oscillating portion disposed on the pedestal, and a positioning block that is inserted into the bottom of the accommodating cavity is disposed at an end of the lower embedded portion a plurality of upper guiding blocks are protruded inwardly on an inner side of the upper swinging portion, and a plurality of upper guiding shafts are protruded on an outer side of the guiding core and directly under the upper guiding block; The X-shaped balance frame cooperates with the guiding core and the base, and the upper and lower pressing portions of the guiding core drive the upper swinging portion of the X-shaped balance frame to swing up and down, thereby providing a balancing force for the upper and lower pressing processes of the guiding core.

As a further improvement of the present invention, a guide shaft is protruded upwardly on the base and located in the bottom of the accommodating cavity, and a guide hole is recessed downward in the direction of the central axis of the guide shaft; A recess is formed in the bottom of the lower recess, and a guide post inserted into the guide hole is disposed downwardly from the bottom of the lower recess, and the spring is sleeved on the outer periphery of the guide shaft and the guide post.

As a further improvement of the present invention, the guide post is a solid light guide column, and the lower end portion of the solid light guide column has a concave arc light guide surface or a concave square light guide surface, and the lead core and the solid light guide column are an integral structure. Or a split structure.

As a further improvement of the present invention, the accommodating cavity includes a conduction component slot into which the conduction component is inserted, an X-type balancer slot and a torsion spring slot which are disposed around the guide shaft and are embedded in the lower embedded portion of the X-type balance frame. Wherein, the X-type balance frame slot is mainly composed of a large groove around the guide shaft and a small square groove at four corners of the large groove, the large groove including the first between the guide shaft and the conduction component slot a retaining slot and a second yielding slot between the guiding shaft and the torsion spring slot, said lower The embedding portion is embedded in the first retaining slot and the second retaining slot, and the positioning block at the end of the lower embedding portion is snapped into the small square slot; at the same time, the conducting component slot, the torsion spring slot and the X-shaped The bay slots are spaced apart from one another.

As a further improvement of the present invention, a side of the guiding core is provided with a pressing block having a pressing protrusion; and a torsion spring is inserted in the torsion spring slot and below the pressing block of the guiding core, The torsion spring has a pressing contact directly under the pressing protrusion; a slot for the upper and lower movement of the pressing block is opened on the inner side of the torsion spring slot.

As a further improvement of the present invention, a large upper cover and a small upper cover respectively disposed on the base and located between the X-shaped balance frame and the lead core are provided, wherein the large upper cover is disposed at an upper end of the torsion spring slot, and the large cover The upper cover includes a large upper cover plate and a large insertion block respectively disposed at two ends of the large upper cover plate and extending downwardly, wherein a large hook is disposed on the end portion of the large insertion block and is disposed inward; the small upper cover is disposed At the upper end of the conduction component slot, the small upper cover includes a small upper cover plate and small insertion blocks respectively disposed at two ends of the small upper cover plate and extending downwardly, wherein the small insertion block ends and the inner side are disposed There is a small hook.

As a further improvement of the present invention, the upper part of the torsion spring slot is respectively provided with a large upper cover card slot for the large hook of the large upper cover, and the lower part of the conduction component slot is respectively opened at the lower side The small upper card slot for the small upper hook is inserted; the one end of the positioning card is directly under the large insert or the small insert, and the other end is clamped on the inner wall of the accommodating cavity.

As a further improvement of the present invention, a guiding groove is formed on the lower end surface of the upper guiding block and directly above the upper guiding shaft.

As a further improvement of the present invention, the balance bar A includes a first a U-shaped frame and a first crossbar which is disposed at a rear end opening of the first U-shaped frame and is movable in the first positional groove, and a corresponding insertion shaft is disposed on the opposite inner wall of the first U-shaped frame; The balance bar B includes a second U-shaped frame and a second cross bar that is horizontally located at the rear end opening of the second U-shaped frame and is movable in the second retaining groove, and the opposite outer wall of the second U-shaped frame Each of the second U-shaped frame has a rear end inserted into the first U-shaped frame, and the insertion shaft on the inner wall of the first U-shaped frame is inserted into the insertion hole on the outer wall of the second U-shaped frame to form The intersection.

As a further improvement of the present invention, the first U-shaped frame includes a first horizontal axis and a first arm disposed at two ends of the first horizontal axis and extending in the same direction, wherein the first arm is mainly composed of one a first upper horizontal portion, a first lower horizontal portion, and a first inclined portion connected between the first upper horizontal portion and the first lower horizontal portion, the first horizontal axis being combined with the first upper horizontal portion forming a position The upper swinging portion on the balance bar A, the first inclined portion and the first lower horizontal portion are combined to form the lower inserting portion on the balance bar A, the inserting shaft is disposed on the inner side of the first inclined portion, The first crossbar is disposed on the first lower horizontal portion, the positioning block on the balance bar A is located at the first lower horizontal end; the second U-shaped bracket includes a second horizontal axis and is disposed at the second horizontal a second arm extending at both ends of the shaft and extending in the same direction, wherein the second arm is mainly composed of a second upper horizontal portion, a second lower horizontal portion, and connected to the second upper horizontal portion and the second lower horizontal portion a second inclined portion is formed, and the second horizontal axis is combined with the second upper horizontal portion to form a The upper swinging portion on the balance bar B, the second inclined portion and the second lower horizontal portion are combined to form the lower fitting portion on the balance bar B, and the insertion hole is disposed on the outer side of the second inclined portion The second crossbar is disposed on the second lower horizontal portion, and the positioning block on the balance bar B is located at the second lower horizontal end; the plurality of upper guiding blocks are respectively disposed on the first upper horizontal portion and the first horizontal portion The inner side wall of the upper horizontal part on.

As a further improvement of the present invention, the conduction component includes a static piece and a movable piece, wherein a static contact is disposed on a side of the static piece, a movable contact is disposed on a side of the movable piece, and the static contact and the dynamic contact are Point relative setting.

As a further improvement of the present invention, a bump is disposed on a side of the movable piece, and a lower side of the front end of the protrusion has a lower letting notch; and a side of the guiding core is disposed at a side of the protruding side of the protruding portion The pressing block is pushed to form a yield space on the upper side of the pushing block; a side opening for pushing the pressing block up and down is opened on the side of the conducting component slot.

As a further improvement of the present invention, an upper bump is disposed at a center position of the upper end surface of the lead core.

The beneficial effects of the novel are as follows: (1) By adopting an X-shaped balance frame with a closed structure around the whole, and cooperating with the guide core and the base, the limited space inside the button switch is fully utilized, and the upper and lower pressing processes of the key switch are performed. Provide balance force, balance function is obviously enhanced, balance effect is better, stability is stronger, overall stability is improved, and at the same time, internal structure of key switch is realized to achieve various force energy; (2) dividing traditional single upper cover into large upper cover and small The upper cover forms a retaining groove between the outer side of the guiding shaft of the base and the upper cover and the outer side of the guiding shaft of the base and the small upper cover, respectively, and provides an active seating space for the lower embedded portion of the X-type balance frame It is beneficial to improve the pressure balance stability of the push button switch; (3) a solid light guide column with a one-piece structure or a split structure is used as a guide column, and the lower end portion of the solid light guide column has a concave circular light guide surface or a concave square light guide surface. Conducive to the absorption and diffusion of light by a solid light guide; the guide core serves as a guide It also plays the role of illuminating and guiding light, realizes the middle illuminating of the guiding core, and the solid light guiding column in the guiding core is introduced into the large illuminating surface by the small illuminating surface, and the illuminating surface is enlarged, and the whole surface is illuminated when pressed; (4) By setting the upper bump at the center position of the upper end surface of the guiding core, during the pressing process, no matter which position is pressed, the upper convex point is forced to move the guiding core vertically downward, and the balance is transmitted downward, so that the force is balanced. The pressing force is uniform, the same pressing time is the same, and the sounding time is the same; (5) the conduction component slot, the torsion spring slot and the X-type balance frame slot on the base are spaced apart from each other to form a multi-cavity structure, which are independent of each other. The problems of each part of the structure can be handled separately, greatly simplifying the workload; (6) by covering a large upper cover on the torsion spring slot, and covering a small upper cover on the conduction component slot to protect the torsion spring and the conduction component The role.

The above is an overview of the present technical solution, and the present invention will be further described below in conjunction with the drawings and specific embodiments.

1‧‧‧Base

111‧‧‧ conduction component slot

1111‧‧‧Upper card slot

1112‧‧‧One side opening

112‧‧‧X type balance frame slot

1121‧‧‧ generous trough

1122‧‧‧Small square trough

11211‧‧‧The first place slot

11212‧‧‧Second handicap slot

113‧‧‧torsion spring slot

1131‧‧‧ slotting

1132‧‧‧Upper card slot

12‧‧‧ Guide shaft

121‧‧‧ Guide hole

2‧‧‧Continuation components

21‧‧‧ Static film

22‧‧‧moving

221‧‧‧Bumps

2211‧‧‧Gate gap

3‧‧‧Guide

30‧‧‧ Lower groove

31‧‧‧Upper guide shaft

32‧‧‧ Guide column

321‧‧‧ concave arc light guide

33‧‧‧ Pressing block

331‧‧‧ Pressing the bump

34‧‧‧Promoting the briquettes

35‧‧‧Upper bump

36‧‧‧guide core limiting ribs

4‧‧‧X type balance frame

41‧‧‧Upper guide block

411‧‧‧ guiding slot

42‧‧‧Balance A

421‧‧‧First U-frame

4211‧‧‧Insert shaft

4212‧‧‧ first horizontal axis

4213‧‧‧First arm

42131‧‧‧The first upper level

42132‧‧‧The first horizontal level

42133‧‧‧First inclined part

422‧‧‧First crossbar

43‧‧‧Balance bar B

431‧‧‧Second U-shaped frame

432‧‧‧Second crossbar

4311‧‧‧ jack

4312‧‧‧Second horizontal axis

4313‧‧‧second arm

43131‧‧‧Second upper level

43132‧‧‧Second lower horizontal

43133‧‧‧Second inclined part

4312‧‧‧Second horizontal axis

44‧‧‧ intersection

45‧‧‧Under the embedded department

451‧‧‧ positioning block

46‧‧‧Upper swing

5‧‧‧ Spring

6‧‧‧torsion spring

61‧‧‧ Pressure contact

7‧‧‧Large cover

71‧‧‧Upper cover

72‧‧‧ Large inserts

721‧‧‧ big hook

8‧‧‧Small cover

81‧‧‧Small upper cover

82‧‧‧Small inserts

821‧‧‧Small card

Figure 1 is a new exploded view of the present invention.

Figure 2 is a schematic view of the overall structure of the new type in a natural state.

Fig. 3 is a cross-sectional view showing the novel in a natural state.

Figure 4 is a schematic view of a part of the structure of the present invention.

Figure 5 is a schematic view of another part of the novel.

Figure 6 is a schematic view showing the structure of the novel lead core.

Figure 7 is a schematic view showing the structure of the base of the present invention.

Figure 8 is a schematic view showing the structure of the balance bar A of the present invention.

Figure 9 is a schematic view showing the structure of the balance bar B of the present invention.

Figure 10 is a schematic view showing the structure of the large upper cover of the present invention.

Figure 11 is a schematic view showing the structure of the small upper cover of the present invention.

Figure 12 is a schematic view showing the structure of the new type in a depressed state.

In order to further explain the technical means and effects of the present invention in order to achieve the intended purpose, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings and preferred embodiments.

Referring to FIGS. 1 to 12, the embodiment of the present invention provides an ultra-thin button switch having a high balance, including a base 1. The upper surface of the base 1 defines a receiving cavity, and the receiving cavity is provided with a receiving cavity. In the embodiment, the conduction component 2 includes a static piece 21 and a movable piece 22, and a static contact is disposed on a side of the static piece 21, and a movable contact is disposed on a side of the movable piece 22, and the moving piece 22 The static contact is opposite to the movable contact. The ultra-thin key switch of the embodiment further includes a guiding core 3 disposed on the base 1 and an X-shaped balance frame 4 disposed on the base 1 and surrounding the periphery of the guiding core 3, wherein the lower end of the guiding core 3 The balance between the balance bar A42 and the balance bar B43 is a closed frame structure, and the balance bar A42 and the balance bar B43 are mainly arranged by a spring 5; The X-shaped balance frame 4 is entirely surrounded by a closed structure; the balance bar A42 intersects with the balance bar B43 to form two intersections 44, and the two intersections 44 divide the X-type balance frame 4 into the insertion cavity. a lower inserting portion 45 and an upper swinging portion 46 disposed on the base 1, and a positioning block 451 that is inserted into the bottom of the accommodating cavity is disposed at an end of the lower fitting portion 45; at the upper swinging portion 46 Inside A plurality of upper guiding blocks 41 are protruded inwardly on the side, and a plurality of upper guiding shafts 31 are protruded from the outer side of the guiding core 3 and directly below the upper guiding block 41. In the embodiment, a guiding groove 411 is defined on the lower end surface of the upper guiding block 41 and directly above the upper guiding shaft 31. When the X-type balance frame 4 cooperates with the guide core 3 and the base 1, the upper swinging portion 46 of the X-type balance frame 4 is swung up and down during the upper and lower pressing of the guide core 3, and the upper and lower pressing of the guide core 3 is performed. The process provides a balancing force.

In the present embodiment, as shown in FIGS. 6 and 7, a guide shaft 12 is protruded upwardly on the base 1 and located in the bottom of the accommodating cavity, and is recessed downward in the direction of the central axis of the guide shaft 12. a guiding hole 121 is defined in the lower end surface of the guiding core 3, and a guiding post 32 is inserted downwardly from the bottom of the lower recess 30 to be inserted into the guiding hole 121. The sleeve 12 is sleeved on the periphery of the guide shaft 12 and the guide post 32.

Meanwhile, as shown in FIG. 7, the accommodating cavity includes a conduction component slot 111 into which the conduction component 2 is inserted, an X-type balance frame which is disposed around the guide shaft 12 and is embedded in the lower insertion portion 45 of the X-type balance frame 4. The slot 112 and the torsion spring slot 113, wherein the X-type balance frame slot 112 is mainly composed of a large slot 1121 located around the guide shaft 12 and a small square slot 1122 located at four corners of the large slot 1121. The slot 1121 includes a first retaining slot 11211 between the guiding shaft 12 and the conducting component slot 111 and a second retaining slot 11212 between the guiding shaft 12 and the torsion spring slot 113. The lower inserting portion 45 is embedded. In the first yielding slot 11211 and the second retaining slot 11212, and the positioning block 451 at the end of the lower embedded portion 45 is inserted into the small square slot 1 122; at the same time, the conduction component slot 111, the torsion spring slot 113 and the X-type balancer slot 112 are spaced apart from each other.

As shown in FIG. 10 and FIG. 11 , the ultra-thin button switch of the embodiment further includes a large upper cover 7 and a small upper cover 8 respectively disposed on the base 1 and located between the X-type balance frame 4 and the guide core 3, wherein The large upper cover 7 is disposed at an upper end of the torsion spring slot 113, and the large upper cover 7 includes a large upper cover 71 and a large insert block 72 respectively disposed at two ends of the large upper cover 71 and extending downward, wherein A large hook 721 is disposed on the end of the large insert block 72 and is disposed on the inner side; the small upper cover 8 is disposed at the upper end of the conduction component slot 111, and the small upper cover 8 includes a small upper cover 81 and is respectively disposed on the small upper cover A small insert 82 extending at both ends of the cover plate 81 and extending downward is provided, and a small hook 821 is disposed on the end of the small insert 82 and inward. At the same time, as shown in FIG. 7, the upper part of the torsion spring slot 113 is respectively provided with a large upper cover slot 1132 for the large hook 721 of the large upper cover 7, and the conduction component slot 111 is A small upper cover slot 1111 for the small hook 821 of the small upper cover 8 is respectively inserted in the lower part of the side; the one end of the positioning block 451 is directly under the large insert 72 or the small insert 82, and the other end is stuck. It is arranged on the inner wall of the accommodating cavity.

As shown in the first, sixth, and seventh embodiments, a bump 221 is disposed on a side of the movable piece 22, and a lower end of the front end of the protrusion 221 has a lower recess 2211; A pushing block 34 is disposed on the side of the protruding block 221 so as to form a seating space on the upper side of the pushing block 34; a side for driving the pressing block 34 up and down is opened on the side of the conducting component slot 111. Side opening 1112.

In this embodiment, as shown in FIGS. 8 and 9, the balance bar A42 includes a first U-shaped frame 421 and a rear end of the first U-shaped frame 421. a first crossbar 422 at the opening and movable in the first retaining slot 11211, and a corresponding insertion shaft 4211 on the opposite inner wall of the first U-shaped bracket 421; the balance bar B43 includes a second U-shaped a frame 431 and a second cross bar 432 which is disposed at the rear end opening of the second U-shaped frame 431 and is movable in the second retaining groove 11212, and a jack is disposed on the opposite outer wall of the second U-shaped frame 431 The rear end of the second U-shaped frame 431 is inserted into the first U-shaped frame 421, and the insertion shaft 4211 on the inner wall of the first U-shaped frame 421 is inserted into the insertion hole 4311 on the outer wall of the second U-shaped frame 431. The intersection 44 is formed.

At the same time, the first U-shaped frame 421 includes a first horizontal axis 421 and a first arm 4213 disposed at two ends of the first horizontal axis 4212 and extending in the same direction, wherein the first arm 4213 is mainly composed of one a first upper horizontal portion 42131, a first lower horizontal portion 42132, and a first inclined portion 42133 connected between the first upper horizontal portion 42131 and the first lower horizontal portion 42132, the first horizontal axis 4212 and the first upper portion The horizontal portion 42131 is combined to form the upper swing portion 46 on the balance bar A42, and the first inclined portion 42133 is combined with the first lower horizontal portion 42132 to form the lower insert portion 45 on the balance bar A42. The shaft 4211 is disposed on the inner side of the first inclined portion 42133, the first horizontal rod 422 is disposed on the first lower horizontal portion 42132, and the positioning block 451 on the balance rod A42 is located at the end of the first lower horizontal portion 42132; The second U-shaped frame 431 includes a second horizontal axis 4312 and a second arm 4313 disposed at two ends of the second horizontal axis 4312 and extending in the same direction. The second arm 4313 is mainly composed of a second The upper horizontal portion 43131, the second lower horizontal portion 43132, and the second upper horizontal portion 43131 and the second lower portion a level between the horizontal portion 43132 The second inclined portion 43133 is combined with the second upper horizontal portion 43131 to form the upper swinging portion 46 on the balance bar B43, and the second inclined portion 43133 is combined with the second lower horizontal portion 43132. The lower insertion portion 45 is formed on the balance bar B43. The insertion hole 4311 is disposed on the outer side of the second inclined portion 43133. The second cross bar 432 is disposed on the second lower horizontal portion 43132. The balance bar B43 is disposed on the outer side of the second inclined portion 43132. The upper positioning block 451 is located at the end of the second lower horizontal portion 43132; the plurality of upper guiding blocks 41 are respectively disposed on the inner side walls of the first upper horizontal portion 42131 and the second upper horizontal portion 43131.

As a further improvement of the embodiment, the guide post 32 is a solid light guide column, and the lower end portion of the solid light guide column has a concave arc light guide surface 32 or a concave square light guide surface, and the lead core 3 and the solid light guide column For a one-piece structure or a split structure, the one-piece structure reduces costs. When the light reaches the concave arc light guiding surface 321 or the concave square light guiding surface of the solid light guiding column, the solid light guiding column sucks in the light and guides the light through the concave arc light guiding surface 321 or the concave square light guiding surface. Diffusion, the arrangement of the concave circular arc guiding surface 321 or the concave square light guiding surface at the lower end of the solid light guiding column facilitates the absorption and diffusion of light by the solid light guiding column. In this embodiment, the guiding core 3 not only plays a guiding role, but also functions as a light emitting and guiding light to realize the intermediate light emitting of the guiding core 3, and the solid light guiding column in the guiding core 3 is introduced into the large light emitting surface. The light-emitting surface enlarges the light-emitting surface, and the entire surface is illuminated when pressed.

As a further improvement of the embodiment, the guide core 3 is provided with a pressing block 33 on the side thereof, the pressing block 33 has a pressing protrusion 331 thereon, and a pressing block in the torsion spring slot 113 and located in the guiding core 3 A torsion spring 6 is inserted below the 33, and the torsion spring 6 has a pressing contact directly under the pressing bump 331 61. A slot 1131 for moving the pressing block 33 up and down is disposed on an inner side of the torsion spring slot 113. By using the torsion spring 6 and the pressing block 33 of the guiding core 3, during the pressing process, the pressing protrusion 331 of the pressing block 33 knocks the pressing contact 61 of the torsion spring 6 to realize the sounding effect, and the effect is good, and at the same time, The torsion spring acts as a generating element and the life is greatly improved.

As a further improvement of the embodiment, an upper bump 35 is disposed at a central position of the upper end surface of the lead core 3. After the key cap is placed on the lead core 3, the upper end of the upper bump 35 directly bears against the key cap. When the lead core 3 is pressed, due to the presence of the upper bump 35, the upper bump 35 is forced regardless of the position pressed. The guide core 3 is vertically moved downward to maintain a balanced downward force transmission, so that the pressing force is uniform, the pressing stroke is the same, and the sounding time is the same.

As a further improvement of the embodiment, the guiding core 3 is provided with a plurality of guiding core limiting ribs 36 on the side thereof to prevent the guiding core 3 from swinging left and right during the vertical movement, which facilitates the vertical movement of the guiding core 3 up and down.

The ultra-thin key switch provided in this embodiment has a small size and is a key switch that can be used in a smaller use space, and can be used with the upper key cap.

The working principle of the present invention; as shown in FIG. 2, the push button switch is in a natural state. At this time, the end of the push block 34 on the lead core 3 pushes the protrusion 221 on the side of the moving piece 22 outward to make the moving piece When the movable contact on the 22 is separated from the static contact on the static piece 21, the key switch is in the off state; after the upper key cap is engaged, the guide core 3 and the X-type balance frame 4 are subjected to pressing the keycap downward. The downward force is moved downward, and as the guiding core 3 moves downward, the guiding core 3 compresses the spring 5, and at the same time, the pushing pressing block 34 on the guiding core 3 moves downward with the guiding core 3, so that the pushing block 34 is pushed. The portion enters the lower yielding notch 2211 on the lower side of the bump 221, and the end of the bump 221 enters When the moving contact of the moving piece 22 is in contact with the static contact on the static piece 21, the key switch is in an on state, as shown in FIG. 12, and at the same time, pressing the block 33 The pressing protrusion 331 taps the pressing contact 61 of the torsion spring 6 to emit a sound; when releasing the downward force on the guiding core 3 and the X-type balance frame 4, under the elastic restoring force of the spring 5, the guiding core 3 The movement returns to the natural state, and acts on the upper guiding block 41 on the X-type balance frame 4 through the upper guiding shaft 31 on the side of the guiding core 3, thereby driving the X-type balancing frame 4 to move, and restoring the natural state, The button switch returns to the off state.

The main points of this new model are as follows: (1) By using the X-shaped balance frame with a closed structure around the whole, and the guiding core and the base to cooperate, the limited space inside the button switch is fully utilized, and the upper and lower pressing processes of the key switch are performed. Provide balance force, balance function is obviously enhanced, balance effect is better, stability is stronger, overall stability is improved, and at the same time, internal structure of key switch is realized to achieve various force energy; (2) dividing traditional single upper cover into large upper cover and small The upper cover forms a retaining groove between the outer side of the guiding shaft of the base and the upper cover and the outer side of the guiding shaft of the base and the small upper cover, respectively, and provides an active seating space for the lower embedded portion of the X-type balance frame It is beneficial to improve the pressure balance stability of the push button switch; (3) a solid light guide column with a one-piece structure or a split structure is used as a guide column, and the lower end portion of the solid light guide column has a concave circular light guide surface or a concave square light guide surface. Conducive to the absorption and diffusion of light by the solid light guide column; the lead core not only plays a guiding role, but also plays a role of illuminating and guiding light, realizes the middle illuminating of the guiding core, and the solid light guiding column in the guiding core is Introducing small to large light emitting surface light emitting surface light emitting surface increased, the entire surface is pressed to achieve emit light; (4) By setting the upper bump at the center position of the upper end surface of the guiding core, during the pressing process, no matter which position is pressed, the upper convex point is forced to move the guiding core vertically downward, and the balance is transmitted downward, so that the force is balanced. The pressing force is uniform, the same pressing time is the same, and the sounding time is the same; (5) the conduction component slot, the torsion spring slot and the X-type balance frame slot on the base are spaced apart from each other to form a multi-cavity structure, which are independent of each other. The problems of each part of the structure can be handled separately, which greatly simplifies the workload; (6) by covering a large upper cover on the torsion spring socket, and covering a small upper cover on the conduction component slot to protect the torsion spring and the conduction The role of the component.

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. Therefore, other structures obtained by the same or similar technical features as the above-described embodiments of the present invention are all in the present invention. Within the scope of protection.

Claims (13)

An ultra-thin button switch having a high balance, comprising a base, an upper surface of the base is provided with a receiving cavity, and the receiving cavity is provided with a conducting component, and further comprising a guiding core disposed on the base And an X-type balance frame disposed on the base and surrounding the periphery of the lead core, wherein the lower end of the lead core and the base are connected by a spring; the X-type balance frame is mainly composed of a balance bar A and A balance bar B is arranged in a cross, and the balance bar A and the balance bar B are both closed frame structures, and the X-type balance frame is entirely surrounded by a closed structure; the balance bar A and the balance bar B intersect to form two An intersection point, the X-shaped balance frame is divided into a lower embedded portion embedded in the accommodating cavity and an upper oscillating portion disposed on the pedestal, and a latching accommodating cavity is disposed at an end of the lower embedded portion a positioning block on the inner bottom portion; a plurality of upper guiding blocks are protruded inwardly on an inner side of the upper swinging portion, and a plurality of upper guiding blocks are protruded on an outer side of the guiding core and directly under the upper guiding block The upper guide shaft; through the X-type balance frame, cooperates with the guide core and the base, Pressing down the core process, the X-type drive gimbal portion swung vertically oscillating, providing a balanced force to the upper and lower guide core pressing process. According to the ultra-thin key switch of claim 1, the guide shaft is protruded upwardly from the bottom of the accommodating cavity, and a guide shaft is recessed downwardly in the direction of the central axis of the guide shaft. a guiding hole; a lower groove is formed on the lower end surface of the guiding core, and a guiding post that is inserted into the hole in the upper and lower sides is arranged to extend downwardly from the bottom of the lower groove, and the spring is sleeved on the guiding shaft and the guiding The periphery of the column. According to claim 2, the ultra-thin button switch having high balance, wherein the guide post is a solid light guide column, and the lower end portion of the solid light guide column has a concave arc light guide surface or a concave square light guide surface, and The guiding core and the solid light guiding column are integrated or separated Structure. According to the high-balanced ultra-thin key switch of claim 2, the accommodating cavity includes a conduction component slot into which the conduction component is inserted, an X-shaped shape surrounding the guide shaft and embedded in the lower insertion portion of the X-type balance frame. The balance frame slot and the torsion spring slot, wherein the X-type balance frame slot is mainly composed of a large groove around the guide shaft and a small square groove at four corners of the large groove, the large groove includes the guide shaft a first retaining slot between the slot and the torsion spring slot, and the second inserting slot is embedded in the first retaining slot and the second retaining slot And the positioning block at the end of the lower embedded portion is snapped into the small square slot; at the same time, the conduction component slot, the torsion spring slot and the X-type balance frame slot are spaced apart from each other. According to claim 4, the ultra-thin key switch having high balance, the side of the lead core is provided with a pressing block having a pressing bump; and the guiding core is located in the torsion spring slot and located in the guiding core A torsion spring is inserted under the pressing block, and the torsion spring has a pressing contact directly under the pressing protrusion; a slot for the upper and lower movement of the pressing block is opened on the inner side of the torsion spring slot. The ultra-thin key switch according to claim 4, further comprising a large upper cover and a small upper cover respectively disposed on the base and located between the X-type balance frame and the lead core, wherein the large upper cover is set At the upper end of the torsion spring slot, the large upper cover includes a large upper cover plate and a large insertion block respectively disposed at two ends of the large upper cover plate and extending downwardly, wherein the large insertion block end portion is disposed on the inner side The small upper cover is disposed at an upper end of the conduction component slot, and the small upper cover comprises a small upper cover and a small insertion block respectively disposed at two ends of the small upper cover and extending downward, wherein A small hook is placed on the end of the small insert and on the inner side. According to claim 6, the ultra-thin key switch having high balance, A large upper card slot for the large hook of the upper cover is respectively opened at the lower side of the two sides of the torsion spring slot, and a small hook for the small upper cover is respectively inserted into the lower part of the side of the conduction component slot. The upper end of the positioning block is fastened under the large insert or the small insert, and the other end is clamped on the inner wall of the accommodating cavity. According to the ultra-thin key switch having high balance according to claim 1, a guide groove is formed on the lower end surface of the upper guide block and directly above the upper guide shaft. According to the ultra-thin key switch of claim 4, the balance bar A includes a first U-shaped frame and is disposed at a rear end opening of the first U-shaped frame and is movable in the first release slot. The first crossbar of the first U-shaped bracket is respectively provided with a plug shaft on the opposite inner wall of the first U-shaped bracket; the balance bar B includes a second U-shaped bracket and is horizontally disposed at the rear end opening of the second U-shaped bracket And a second crossbar that is movable in the second yielding slot, and an outer wall is respectively disposed on the opposite outer wall of the second U-shaped bracket; the rear end of the second U-shaped bracket is inserted into the first U-shaped bracket, and the A pin on the inner wall of the first U-shaped frame is inserted into a socket on the outer wall of the second U-shaped frame to form the intersection. According to the ultra-thin key switch of claim 9, the first U-shaped frame includes a first horizontal axis and a first arm disposed at both ends of the first horizontal axis and extending in the same direction. Wherein the first arm is mainly composed of a first upper horizontal portion, a first lower horizontal portion and a first inclined portion connected between the first upper horizontal portion and the first lower horizontal portion, the first horizontal axis Forming, in combination with the first upper horizontal portion, the upper swing portion on the balance bar A, the first inclined portion being combined with the first lower horizontal portion to form the lower insert portion on the balance bar A, the plug shaft And disposed on the inner side of the first inclined portion, the first horizontal bar is disposed on the first lower horizontal portion, the positioning block on the balance bar A is located at the end of the first lower horizontal portion; and the second U-shaped frame includes a second horizontal axis and a second branch disposed at both ends of the second horizontal axis and extending in the same direction An arm, wherein the second arm is mainly composed of a second upper horizontal portion, a second lower horizontal portion, and a second inclined portion connected between the second upper horizontal portion and the second lower horizontal portion, the first The two horizontal axes are combined with the second upper horizontal portion to form the upper swinging portion on the balance bar B, and the second inclined portion is combined with the second lower horizontal portion to form the lower embedded portion on the balance bar B. The insertion hole is disposed on the outer side of the second inclined portion, the second horizontal bar is disposed on the second lower horizontal portion, and the positioning block on the balance bar B is located at the end of the second lower horizontal portion; The guiding blocks are respectively disposed on the inner side walls of the first upper horizontal portion and the second upper horizontal portion. According to claim 4, the ultra-thin button switch has a high balance, and the conduction component comprises a static piece and a movable piece, wherein a static contact is arranged on a side of the static piece, and a movable contact is arranged on a side of the movable piece. Point, and the static contact is opposite to the movable contact. According to the ultra-thin button switch with high balance according to claim 11, a bump is disposed on a side of the movable piece, and a lower side of the front end of the protrusion has a lower letting gap; A pushing block is disposed on a side of the protruding block, so that a retaining space is formed on an upper side of the pushing block; and a side opening for pushing the pressing block up and down is formed on a side of the conducting component slot. According to the ultra-thin key switch having high balance according to claim 1, an upper bump is disposed at a center position of the upper end surface of the lead core.