TWM588871U - Key switch with excellent balance - Google Patents

Abstract

The present invention discloses a well-balanced key switch, which includes a base and a cover that covers the base, and also includes a guide core, a torsion spring, a conduction component and a guide core slider respectively provided on the base. A guide post is protruded upwards at the center position of the upper end of the seat, and a guide hole is opened downwards at the center of the guide post, and two baffle plates are respectively arranged at the upper end of the base and on opposite sides of the guide post to make the base An annular accommodating groove is formed around the baffle and the guide post; an annular slot is opened at the lower end of the guide core, and a plug post is protruded downward in the middle of the ring slot, and the plug post is inserted into the guide hole of the base The guide post is inserted into the annular slot, and a spring is sleeved on the outer side of the guide post and the insertion post; a balance bar mainly formed by crossing the first balance bar and the second balance bar is provided in the ring-shaped accommodating groove The assembly is limited by positioning sliders at two intersections of the first balance bar and the second balance bar. The key switch of the new type has significantly improved the balance of pressing and the stability of pressing.

Description

A key switch with good balance

The invention relates to a key switch, in particular to a key switch with good balance.

Many operations of electronic devices require the use of a key switch as an input method. The quality of the key switch determines the experience of the input device, which requires the key switch to have a good feel and sound. Existing thin key switches that use a metal sheet as a moving contact sheet, because of the limitation of the internal space of the switch, cannot always have a pressing feel like a large key switch. At the same time, due to the unreasonable internal structure design and poor compression stability, it leads to unsmooth use and affects normal use; and there is often a sense of pressure jam, which affects the feel of pressing.

In view of the above-mentioned shortcomings, the purpose of the present invention is to provide a key switch with good balance. The structure design is reasonable, the balance of pressing and the stability of pressing are significantly improved, the sense of pressing jam is eliminated, and the feeling of pressing is enhanced.

The technical solutions adopted by the new model to achieve the above objectives are:

A well-balanced key switch includes a base and a cover covering the base, the cover is provided with an opening, and further includes a guide core, a torsion spring, and a conducting component respectively arranged on the base A guide core slider, wherein a guide post is protruded upward at the center position of the upper end of the base, a guide hole is opened downward in the center of the guide post, and a conductive component slot for inserting the conductive component is provided at one end of the base , The other end is provided with a torsion spring slot for insertion of the torsion spring, on the base Two baffles are respectively provided at the ends and on opposite sides of the guide post, and there is a gap between the two baffles, so that an annular accommodating groove provided around the baffle and the guide post is formed on the base The guide core slider is located on the side of the guide core, and a ring slot is opened at the lower end of the guide core, and a plug post is protruded downward in the middle of the ring slot, and the plug post is inserted into the guide hole of the base, At the same time, the guide column of the base is inserted into the annular slot, and a spring is sleeved on the outer side of the guide column and the insertion column; a balance bar assembly is provided in the annular accommodating groove. The balance bar assembly is mainly composed of a split type The first balance bar and the second balance bar are formed to cross each other. The first balance bar and the second balance bar are both locked at the lower end of the guide core, and are divided at two intersections where the first balance bar and the second balance bar are opposite Don't limit by a positioning slider, the positioning slider is suspended in the annular receiving groove, and is located in the gap between the two baffles on the same side; in the process of the guide core moving up and down, The first balance bar and the second balance bar swing up and down under the action of the positioning slider to maintain the balance of pressing.

As a further improvement of the present invention, the positioning slider is provided with a limit groove for the first balance bar and the second balance bar to be inserted into the side of the positioning slider, the limit groove has an opening, and the upper part and the lower part of the opening are respectively Bend inward to form a bulge.

As a further improvement of the present invention, the limiting groove is arc-shaped.

As a further improvement of the present invention, the raised end mask has an angle.

As a further improvement of the present invention, a rib is provided on the side wall of the positioning slider and on the side of the guide core.

As a further improvement of the present invention, a groove is formed in the lower end surface of the guide core, so that the lower end surface of the guide core forms a plurality of guide core lobes.

As a further improvement of the present invention, on the base and located on the On the outer side of the guide column, there are a plurality of yielding grooves into which the guide core lobes extend, or a number of yielding holes through which the guide core lobes pass.

As a further improvement of the present invention, a mounting hole is opened at the upper end of the insert post of the guide core, and an LED lamp is installed in the mounting hole.

As a further improvement of the present invention, the first balance bar and the second balance bar are both U-shaped, and the open end of the first balance bar and the open end of the second balance bar are arranged to cross each other; the first balance The rod includes a first horizontal rod and first vertical rods respectively connected to both ends of the first horizontal rod, and an end of the first vertical rod is provided with a first hook bent outward; the second balance rod It includes a second horizontal rod and second vertical rods connected to both ends of the second horizontal rod respectively. The second vertical rod is provided with an inwardly bent second hook at the end; the first horizontal rod is located at The lower end of one side of the guide core, the second horizontal rod is located at the lower end of the other side of the guide core.

As a further improvement of the present invention, the conducting assembly includes a static plate and a moving plate.

The beneficial effects of the present invention are as follows: (1) Built-in split first balance bar and second balance bar, under the limit action of the positioning slider at the two intersections, the first balance bar and the second balance bar are made Swing up and down to achieve compression balance, the compression balance and compression stability are significantly improved; (2) Through the cooperative design of the guide core lobes and the yield groove or yield hole, the yield groove or yield hole serves as the base The avoidance of the position provides a space for the convex angle of the guide core, so that the length of the fit between the guide core and the base before sliding between each other is lengthened, and the guide core pressing will not cause a sense of jam; at the same time, the key switch is reduced The height of the button makes the overall thickness of the key switch thinner; (3) Through the installation of the torsion spring, the feel of pressing is enhanced and a pressing sound is produced.

The above is an overview of the new technical solution, and the present invention will be further described below with reference to the drawings and specific implementations.

1‧‧‧Dock

10‧‧‧LED light

11‧‧‧Guide column

12‧‧‧Guide hole

13‧‧‧Annular accommodating groove

14‧‧‧Conducting component slot

15‧‧‧ Torsion spring slot

16, 16'‧‧‧ yield slot

17‧‧‧Baffle

171‧‧‧Gap

2‧‧‧ lid

21‧‧‧ opening

3‧‧‧Guide core

31‧‧‧Ring slot

32‧‧‧Plug

321‧‧‧ mounting hole

33‧‧‧Guide core lobes

4‧‧‧torsion spring

5‧‧‧Conducting components

51‧‧‧ Still

52‧‧‧Movie

6‧‧‧Guide core slider

7‧‧‧Spring

8‧‧‧Balance bar assembly

81‧‧‧First balance bar

811‧‧‧The first horizontal rod

812‧‧‧First vertical rod

813‧‧‧The first hook

82‧‧‧Second balance bar

821‧‧‧Second horizontal rod

822‧‧‧Second vertical rod

823‧‧‧The second hook

9, 9'‧‧‧positioning slider

91, 91'‧‧‧ limit slot

911, 911'‧‧‧ opening

912, 912'‧‧‧ raised

9121‧‧‧Angle

92‧‧‧rib

Figure 1 is an assembly drawing of the first embodiment of the new model.

FIG. 2 is a schematic structural diagram of a base according to Embodiment 1 of the present invention.

FIG. 3 is a cross-sectional view of the first embodiment of the new type.

FIG. 4 is a schematic structural diagram of a balance bar assembly according to an embodiment of the present invention.

FIG. 5 is a schematic structural diagram of a positioning slider according to Embodiment 1 of the present invention.

Figure 6 is a schematic diagram of the external structure of the new model in a free state.

Figure 7 is a sectional view of the new model in a free state.

Figure 8 is another cross-sectional view of the new model in a free state.

Figure 9 is a schematic diagram of the external structure of the new model in the depressed state.

FIG. 10 is a cross-sectional view of the new model in the depressed state.

FIG. 11 is another cross-sectional view of the new model in the depressed state.

FIG. 12 is a schematic structural diagram of a positioning slider according to Embodiment 2 of the present invention.

FIG. 13 is a schematic structural view of the bottom of the third guide core according to the new embodiment.

Fig. 14 is a schematic structural view of the bottom of the base of the third embodiment of the present invention.

FIG. 15 is another schematic structural view of the bottom of the base of the third embodiment of the present invention.

In order to further elaborate on the technical means and effects of the new model to achieve the intended purpose, the following with the drawings and preferred embodiments, the new model has The embodiment is described in detail.

Example one:

Please refer to FIGS. 1 to 11, this embodiment provides a well-balanced key switch, which includes a base 1 and a cover 2 covered on the base 1, the cover 2 defines an opening 21, and further includes The guide core 3, the torsion spring 4, the conducting assembly 5 and the guide core slider 6 provided on the base 1, wherein a guide post 11 is protruded upward at the center of the upper end of the base 1, and the guide post 11 is oriented toward the center A guide hole 12 is opened underneath. The base 1 has a conductive component slot 14 for inserting the conductive component 5 at one end, and a torsion spring socket 15 for inserting the torsion spring 4 at the other end. Two baffles 17 are respectively arranged on the upper end and on opposite sides of the guide post 11, and there are gaps 171 between the two baffles 17, so that the base 1 is formed to surround the baffle 17 and the guide post 11 A ring-shaped accommodating groove 13 is provided; the guide core slider 6 is located on the side of the guide core 3, and a ring slot 31 is opened at the lower end of the guide core 3, and a plug column protrudes downward in the middle of the ring slot 31 32, the insertion post 32 is inserted into the guide hole 12 of the base 1, and the guide post 11 of the base 1 is inserted into the annular slot 31 at the same time, a spring 7 is sleeved on the outer side of the guide post 11 and the insertion post 32 ; The ring-shaped accommodating groove 13 is provided with a balance bar assembly 8, the balance bar assembly 8 is mainly formed by the split first balance bar 81 and the second balance bar 82 cross, the first balance bar 81 and the second The balance bars 82 are all clamped on the lower end of the guide core 3, and are respectively limited by a positioning slider 9 at two intersections of the first balance bar 81 and the second balance bar 82, and the positioning slider 9 is suspended In the gap 171 between the two baffles 17 on the same side in the annular accommodating groove 13; during the upward and downward movement of the guide core 3, the first balance bar 81 is parallel to the second The balance bar 82 swings up and down under the limit action of the positioning slider 9, and the positioning slider 9 can only move longitudinally, but not laterally, to maintain the balance of pressing.

In this embodiment, as shown in FIG. 5, a positioning slot 91 is formed on the side of the positioning slider 9 for the first balancing bar 81 and the second balancing bar 82 to be engaged, and the limiting slot 91 has a An opening 911, an upper portion and a lower portion of the opening 911 are respectively bent inward to form a protrusion 912, and an end of the protrusion 912 has an angle 9121, which is set according to the height of the key switch. At the same time, the limiting slot 91 has a circular arc shape.

At the same time, as shown in FIG. 1, a rib 92 is provided on the side wall of the positioning slider 9 and on the side of the guide core 3. The function of the rib 92 is to reduce the positioning slider 9 and the guide The contact area of the core 3 reduces the friction between the positioning slider 9 and the outer wall of the guide core 3.

As shown in FIG. 2, a mounting hole 321 is opened at the upper end of the plug post 32, and the LED lamp 10 is installed in the mounting hole 321 to realize the intermediate light-emitting function.

As shown in FIG. 4, the first balance bar 81 and the second balance bar 82 are both U-shaped, and the opening ends of the first balance bar 81 and the second balance bar 82 cross each other. At the same time, the first balance bar 81 includes a first horizontal bar 811 and a first vertical bar 812 connected to both ends of the first horizontal bar 811, the end of the first vertical bar 812 is provided with an outward bending The first hook 813; the second balance bar 82 includes a second horizontal bar 821 and a second vertical bar 822 connected to both ends of the second horizontal bar 821, the end of the second vertical bar 822 is provided There is a second hook 823 bent inwards; the first horizontal rod 811 is located at the lower end of one side of the guide core 3, and the second horizontal rod 821 is in position At the lower end of the other side of the guide core 3. In this embodiment, the split first balance bar 81 and the second balance bar 82 are built in, and the positioning slider 9 at two intersections slides up and down in the annular receiving groove 13 of the base 1 to make the first The balance bar 81 and the second balance bar 82 are slidingly coupled up, down, left, and right between the two positioning sliders 9 to achieve press balance.

In this embodiment, the conducting assembly 5 includes a static piece 51 and a moving piece 52.

Example 2:

As shown in FIG. 12, the main difference between this embodiment and the first embodiment is that: the positioning slider 9'on the side of this embodiment is also provided with the first balance bar 81 and the second balance bar 82 snapped in The arc-shaped limiting groove 91' has an opening 911', and the upper portion and the lower portion of the opening 911' are respectively bent inward to form a protrusion 912'. However, the end surface of the protrusion 912' in this embodiment is not provided with an angle, and the thickness of the positioning slider 9'in this embodiment is thinner than the thickness of the positioning slider 9 in Embodiment 1.

Example three:

As shown in FIGS. 7, 10, 13, 14 and 15, the main difference between this embodiment and the first embodiment is that a groove is formed in the lower end surface of the guide core 3, so that the lower end surface of the guide core 3 forms a number of guides Core lobes 33. At the same time, there are two ways to provide room for the guide core lobes 33, one of which is: on the base 1 and outside the guide post 11 there are a number of slots for the guide core lobes 33 to extend into Yielding slot 16, and the depth of the yielding slot 16 is exactly equal to the height of the guide core lobes 33; another way is: on the base 1 and located outside the guide column 11 is provided for the guide core convex A number of yield holes 16' through which the corner 33 passes.

In this embodiment, the number of the yielding grooves 16 and the yielding holes 16' are the same as the number of the guide core lobes 33. In this embodiment, the number of the guide core lobes 33 is 4. However, the guide core lobes 33 can also be set to two or more, which can be set according to specific needs.

Meanwhile, the height of the guide core lobes 33 can be set according to specific needs. In this embodiment, preferably, the height of the guide core lobes 33 is 0.4 mm. Through the cooperative design of the guide core lobes 33 and the yield groove 16 or the yield hole 16 ′, the yield groove 16 or the yield hole 16 ′ serves as an escape position for the base 1, so that the guide core 3 and the yield hole 16 ′ The mating length between the bases 1 before sliding with each other is lengthened, and the guide core 3 does not cause a sense of jamming when pressed. At the same time, the height of the key switch is reduced, so that the overall thickness of the key switch is thinner.

The working principle of this new model is:

As shown in FIGS. 9 to 11, when the guide core 3 is pressed down, the post 32 of the guide core 3 is inserted into the guide hole 12 of the base 1, and the guide core lobes 33 at the lower end of the guide core 3 Insert into the yielding groove 16 or the yielding hole 16' of the base 1, and simultaneously insert the guide post 11 of the base 1 into the annular slot 31 of the guide core 3, and compress the spring 7 to trigger the conduction The stationary piece 51 of the assembly 5 is in contact with the moving piece 52 to realize the conduction function of the key switch; at the same time, the lower end of the guide core 3 respectively faces the first horizontal bar 811 of the first balance bar 81 and the second balance bar The second horizontal bar 821 of 82 exerts downward force, and under the limitation of the positioning slider 9, the first balance bar 81 and the second balance bar 82 swing up and down to maintain the pressing balance.

As shown in Figures 6 to 8, when the force that presses the guide core 3 disappears, under the action of the elastic restoring force of the spring 7, the guide core 3 is reset upward, upward The end passes through the opening 21 of the cover 2 and returns to the original position. At the same time, the static piece 51 of the conducting assembly 5 is separated from the movable piece 52 to realize the disconnection function of the key switch.

The main points of this new type are: (1) Built-in split first balance bar and second balance bar, under the action of positioning the slider at the two intersections, make the first balance bar and the second balance bar up and down Swing and reach the compression balance, the compression balance and compression stability are significantly improved; (2) Through the cooperation design of the guide core convex angle and the yield groove or the yield hole, the yield groove or the yield hole serves as the base Avoidance, to provide room for the guide core lobes, so that the length of the cooperation between the guide core and the base before sliding between each other is lengthened, the guide core pressing will not produce a sense of jam; at the same time, the key switch is reduced The height makes the overall thickness of the key switch thinner; (3) The setting of the torsion spring enhances the feeling of pressing and makes a pressing sound.

The above is only the preferred embodiment of the present invention, and does not limit the technical scope of the present invention. Therefore, the same or similar technical features as the above-mentioned embodiments of the present invention are adopted, and other structures obtained are in the present invention. Within the scope of protection.

1‧‧‧Dock

10‧‧‧LED light

2‧‧‧ lid

21‧‧‧ opening

3‧‧‧Guide core

33‧‧‧Guide core lobes

4‧‧‧torsion spring

5‧‧‧Conducting components

51‧‧‧ Still

52‧‧‧Movie

6‧‧‧Guide core slider

7‧‧‧Spring

8‧‧‧Balance bar assembly

9‧‧‧Positioning slider

92‧‧‧rib

Claims (10)

A well-balanced key switch includes a base and a cover covering the base, the cover is provided with an opening, and further includes a guide core, a torsion spring, a conduction component and a guide respectively arranged on the base A core slider, wherein a guide post is protruded upward at the center position of the upper end of the base, a guide hole is opened downward at the center of the guide post, and a conductive component slot for inserting the conductive component is provided on one end of the base, The other end is provided with a torsion spring slot for inserting the torsion spring, and two baffles are respectively provided on the upper end of the base and on opposite sides of the guide post, and there is a gap between the two baffles to make the An annular receiving groove formed around the baffle and the guide post is formed on the base; the guide core slider is located on the side of the guide core, and an annular slot is opened at the lower end of the guide core, and the middle of the annular slot faces The lower protrusion is provided with a plug post, which is inserted into the guide hole of the base, and at the same time, the guide post of the base is inserted into the annular slot, and a spring is sleeved on the outer side of the guide post and the plug post; A balance bar assembly is provided in the accommodating groove. The balance bar assembly is mainly formed by a split first balance bar and a second balance bar. The first balance bar and the second balance bar are both locked at the lower end of the guide core And at the two intersections where the first balance bar and the second balance bar are opposite are respectively limited by a positioning slider, the positioning slider is suspended and arranged in the annular receiving groove, and the two pieces on the same side In the gap between the baffles, the positioning slider is provided with a limit groove for the first balance bar and the second balance bar to be inserted into the side; during the process of the guide core moving up and down, the first balance bar and the The second balance bar swings up and down under the action of the limit of the positioning slider to maintain the balance of pressing. As described in claim 1, the key switch with good balance is provided with a limit slot for the first balance bar and the second balance bar to be inserted into the side of the positioning slider, and the limit slot has an opening , The upper and lower parts of the opening are bent inward respectively Into a bulge. According to the key switch with good balance described in claim 2, the limit slot is in an arc shape. As described in claim 3, a well-balanced key switch, the raised end mask has an angle. As described in any one of claims 1 to 4, the key switch with good balance is provided with a rib on the side wall of the positioning slider and on the side of the guide core. According to the key switch with good balance described in claim 1, a groove is formed in the lower end surface of the guide core, so that the lower end surface of the guide core forms a plurality of guide core lobes. As described in claim 6, a well-balanced key switch is provided on the base and outside the guide post, with a plurality of giving-out slots into which the guide core lobes extend, or for the guide core to protrude Several concessions through the corner. According to the key switch with good balance as described in claim 1, a mounting hole is opened at the upper end of the plug of the guide core, and an LED lamp is installed in the mounting hole. According to the key switch with good balance described in claim 1, the first balance bar and the second balance bar are U-shaped, and the opening end of the first balance bar and the opening end of the second balance bar are mutually Crossed; the first balance bar includes a first horizontal bar and a first vertical bar connected to both ends of the first horizontal bar, the first vertical bar is provided with a first bend bent outward Hook; the second balance bar includes a second horizontal bar and a second vertical bar respectively connected to the two ends of the second horizontal bar, the second vertical bar is provided with an inwardly bent second end Hook; the first horizontal rod is located at the lower end of one side of the guide core, and the second horizontal rod is located at the lower end of the other side of the guide core. According to the key switch with good balance described in claim 1, the conducting component includes a static piece and a moving piece.

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