CN106449193A - A thin keyboard switch - Google Patents

Abstract

The invention discloses a thin keyboard switch, which comprises a PCB (printed circuit board), a base arranged on the PCB, a conduction assembly and an upper cover which are respectively arranged on the base, and further comprises a core guide assembly, a tension spring and an X-shaped bracket which are respectively arranged on the base, wherein the base is provided with a first accommodating groove and a second accommodating groove; the edge of the upper end of the base is provided with a supporting plate seat, the X-shaped support is arranged on the supporting plate seat and surrounds the periphery of the base, and one end of the tension spring is hooked on the X-shaped support; the lower end of the upper cover is clamped in a gap formed by the X-shaped support and the base. The thin keyboard switch disclosed by the invention has the advantages that the balance and stability are improved while the whole thickness is thinned, and meanwhile, the thin keyboard switch has good pressing hand feeling and improves the user experience.

Description

A thin keyboard switch

technical field

The invention relates to a keyboard switch, in particular to a thin keyboard switch.

Background technique

Many operations of electronic devices require the use of keyboard switches as input means. The quality of the keyboard switch determines the experience of the input device, which requires the keyboard switch to have a good feel and sound. Existing thin keyboard switches that use metal sheets as movable contacts are relatively insufficient in elasticity and lack of pressing feel due to the limitation of the internal space of the switch. Manufacturers continue to make improvements in various aspects such as metal sheet materials and shapes to increase the pressing experience, but they have been limited to the improvement of pressing touch. At the same time, the keyboard switch has poor stability during use, resulting in unsmooth use and affecting normal use.

Contents of the invention

In view of the above deficiencies, the purpose of the present invention is to provide a thin keyboard switch, which improves its balance and stability while reducing its overall thickness, and at the same time, has a good pressing feel and improves user experience.

The technical scheme that the present invention adopts for achieving the above object is:

A thin keyboard switch, comprising a PCB board, a base set on the PCB board, and a conduction component and an upper cover respectively set on the base, characterized in that it also includes guide cores respectively set on the base Components, extension springs and X-shaped brackets, the base is provided with a first accommodation groove and a second accommodation groove, the extension spring is clamped in the first accommodation groove, the guide core assembly and the conduction assembly are The upper cover is provided with an opening for the upper end of the guide core assembly to pass through; the upper edge of the base is provided with a support plate seat, and the X-shaped support is arranged on the support plate seat, and Surrounded by the periphery of the base, one end of the tension spring is hooked on the X-shaped support; the lower end of the upper cover is clamped in the gap formed by the X-shaped support and the base.

As a further improvement of the present invention, the guide core assembly includes a guide core base and a guide core inserted into and passed out of the guide core base, and a spring is sheathed around the lower part of the guide core.

As a further improvement of the present invention, it also includes a feel-generating elastic piece, the feel-generating elastic piece is clamped in the second accommodating groove, and one end of the feel-generating elastic piece is located at the lower end of the guide core base, and the other end is fixed on the base.

As a further improvement of the present invention, the second accommodating groove includes a guide core accommodating groove for accommodating the guide core assembly and the spring, and a conduction component clamping groove and a shrapnel respectively arranged on the sides of the guide core accommodating groove A slot, the conduction component is inserted into the slot of the conduction component, and the elastic sheet generated by the hand feeling is inserted into the slot of the elastic sheet.

As a further improvement of the present invention, the conduction assembly includes a static contact piece and a moving contact piece, and the other end of the tension spring is hooked on the static contact piece.

As a further improvement of the present invention, the guide core assembly includes a guide core active part and a guide core follower inserted into the lower end of the guide core active part, and the conduction component is a tortoise carrier, which is located on the guide core. The lower end of the core follower.

As a further improvement of the present invention, the X-shaped bracket is composed of a first U-shaped balance bar and a second U-shaped balance bar, wherein the open end of the first U-shaped balance bar is provided with two first clamping shafts. The open end of the second U-shaped balance bar is provided with two second clamping shafts, and the open end of the first U-shaped balance bar is arranged crosswise with the open end of the second U-shaped balance bar.

As a further improvement of the present invention, one end of the base is provided with two first slots for insertion of two first shafts, and the other end is provided with two second slots for insertion of two second shafts.

The beneficial effects of the present invention are: by adding extension springs and X-shaped brackets, when the overall thickness of the keyboard switch is thinned, the balance of the keyboard switch is enhanced, the guide core assembly can move up and down normally and smoothly, and its stability is improved. Resilience; additional feel produces shrapnel to increase the pressing feel and improve user experience.

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

Description of drawings

Fig. 1 is the explosion diagram of embodiment one keyboard switch;

Fig. 2 is the overall structure schematic diagram of embodiment one keyboard switch;

Fig. 3 is a partial structural schematic diagram of a keyboard switch in Embodiment 1;

Fig. 4 is the schematic structural view of embodiment one base;

FIG. 5 is a schematic structural view of an X-shaped stent in Embodiment 1;

Fig. 6 is the exploded diagram of the keyboard switch of embodiment two;

Fig. 7 is a sectional view of the keyboard switch of the second embodiment.

detailed description

In order to further illustrate the technical means and functions adopted by the present invention to achieve the intended purpose, the specific implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

Embodiment one:

Please refer to Fig. 1 to Fig. 5, the embodiment of the present invention provides a thin keyboard switch, including a PCB board 1, a base 2 arranged on the PCB board 1, and conduction components 3 and 2 respectively arranged on the base 2. The upper cover 4 also includes a guide core assembly 5, a tension spring 6 and an X-shaped bracket 7 respectively arranged on the base 2, and the base 2 is provided with a first accommodation groove 21 and a second accommodation groove 22, The tension spring 6 is clamped in the first accommodating groove 21, the guide core assembly 5 and the conduction assembly 3 are both clamped in the second accommodating groove 22, and the upper cover 4 is provided with an upper end of the guide core assembly 5. The opening 41 that passes through; the upper edge of the base 2 is provided with a support plate seat 23, the X-shaped bracket 7 is arranged on the support plate seat 23, and is surrounded by the periphery of the base 2, and one end of the tension spring 6 is hooked on the On the X-shaped bracket 7; the lower end of the upper cover 4 is clamped in the gap formed between the X-shaped bracket 7 and the base 2.

As shown in FIG. 1 , the guiding core assembly 5 includes a guiding core base 54 and a guiding core 55 inserted into and passing through the guiding core base 54 , and a spring 56 is sheathed around the lower part of the guiding core 55 .

In this embodiment, the keyboard switch also includes a feel-generating elastic piece 8, the feel-generating elastic piece 8 is clamped in the second accommodating groove 22, and one end of the feel-generating elastic piece 8 is located at the lower end of the guide core base 54, and the other end is fixed on base 2.

As shown in FIG. 4, the second accommodating groove 22 includes a guide core accommodating groove 221 for accommodating the guide core assembly 5 and the spring 56, and conduction components respectively arranged on the sides of the guide core accommodating groove 221. The slot 222 and the elastic clip slot 223 , the conductive component 3 is inserted into the conductive component slot 222 , and the elastic piece 8 generated by the feel is inserted into the elastic clip slot 223 .

As shown in FIG. 1 and FIG. 3 , the conduction component 3 includes a static contact piece 31 and a moving contact piece 32 , and the other end of the tension spring 6 is hooked on the static contact piece 31 .

As shown in Figure 5, the X-shaped bracket 7 is composed of a first U-shaped balance bar 71 and a second U-shaped balance bar 72, wherein the open end of the first U-shaped balance bar 71 is provided with two first clips. Shaft 711 , the open end of the second U-shaped balance bar 72 is provided with two second clamping shafts 721 , and the open end of the first U-shaped balance bar 71 and the open end of the second U-shaped balance bar 72 are intersected.

As shown in Figure 4, one end of the base 2 is provided with two first slots 24 for insertion of two first clamp shafts 711, and the other end is provided with two second slots for insertion of two second clamp shafts 721. Card slot 25.

The working principle of this embodiment is: press the guide core 55 to apply a downward force to the spring 56, and at the same time, the movable contact piece 32 contacts the static contact piece 31 to realize the conduction of the keyboard switch; release the pressing on the guide core 55 , due to the elastic restoring force of the spring 56, the guide core 55 returns upward to the initial position, and at the same time, the moving contact piece 32 is separated from the static contact piece 31, so that the keyboard switch is closed.

Embodiment two:

Please refer to Figure 6 and Figure 7, the main difference between this embodiment and Embodiment 1 is that the guide core assembly 5' includes a guide core active part 51 and a guide guide follower 52 inserted into the lower end of the guide core active part 51 , the conduction component 3 ′ is a tortoise carrier, and the tortoise carrier is located at the lower end of the guide core follower 52 .

The working principle of this embodiment is: press the guide core active part 51, apply a downward force to the guide core follower 52, make the guide core follower 52 contact with the turtle carrier, and realize the conduction of the keyboard switch; Pressing the guide core active part 51, the guide core active part 51 drives the guide core follower 52 to return to the initial position upwards, so that the guide core follower 52 is separated from the tortoise carrier, and the keyboard switch is disconnected.

The key points of the present invention are mainly: by adding extension springs and X-shaped brackets, when the overall thickness of the keyboard switch is thinned, the balance of the keyboard switch is enhanced, the guide core assembly can move up and down normally and smoothly, and its stability is improved. Resilience; additional feel produces shrapnel to increase the pressing feel and improve user experience.

The above are only preferred embodiments of the present invention, and are not intended to limit the technical scope of the present invention. Therefore, other structures obtained by adopting the same or similar technical features as the above-mentioned embodiments of the present invention are included in the present invention. within the scope of protection.

Claims (8)

1. a kind of slight keyboard switch, including a pcb board, the pedestal being arranged on pcb board and is respectively arranged at leading on pedestal Logical component and Shang Gai, it is characterised in that also include to be respectively arranged at and lead core assembly, extension spring and X-type support, the base on pedestal The first storage tank and the second storage tank are offered on seat, the extension spring is arranged in the first storage tank, and this leads core assembly with conducting group Part is all arranged in the second storage tank, covers and offer for leading the opening that core assembly upper end passes on this；End edge on the pedestal Edge is provided with support plate base, and the X-type support is arranged on support plate base, and is enclosed located at pedestal periphery, and the extension spring one end hooks and props up located at X-type On frame；The upper lid lower end is arranged in the gap that X-type support is formed with pedestal.

2. slight keyboard according to claim 1 switch, it is characterised in that described lead core assembly include to lead core pedestal and Insert and pass lead core pedestal lead core, this is led core lower periphery and is arranged with a spring.

3. slight keyboard according to claim 3 is switched, it is characterised in that also include that a feel produces shell fragment, the feel Produce shell fragment to be arranged in the second storage tank, and the feel produces shell fragment one end positioned at core pedestal lower end is led, the other end is fixed on On base.

4. slight keyboard according to claim 4 is switched, it is characterised in that second storage tank includes to lead for accommodating The leading core storage tank and be respectively arranged at feed-through assembly draw-in groove and the shell fragment draw-in groove for leading core storage tank side of core assembly and spring, In the feed-through assembly insertion feed-through assembly draw-in groove, the feel is produced in shell fragment insertion shell fragment draw-in groove.

5. slight keyboard according to claim 1 switch, it is characterised in that the feed-through assembly include a quiet contact chip with One moving contacting plate, the extension spring other end is hooked on quiet contact chip.

6. slight keyboard according to claim 1 is switched, it is characterised in that the core assembly of leading includes to lead core actively What core driving link lower end was led in part and insertion leads core driven member, the feed-through assembly be a Testudiniss slide glass, the Testudiniss slide glass be located at lead core from Moving part lower end.

7. slight keyboard according to claim 1 switch, it is characterised in that the X-type support by the first U-shaped gimbal lever with Second U-shaped gimbal lever composition, wherein, the opening of the first U-shaped gimbal lever is provided with two the first axis, and this is second U-shaped flat The opening of weighing apparatus bar is provided with two the second axis, the opening of the opening of the first U-shaped gimbal lever and the second U-shaped gimbal lever Arranged in a crossed manner.

8. slight keyboard according to claim 7 is switched, it is characterised in that described pedestal one end is offered for two first Two the first draw-in grooves of axis insertion, the other end offers two the second draw-in grooves for two the second axis insertions.