Anti-mistouch mechanical switch and mechanical keyboard

Abstract

The present invention discloses an anti-mis-touch mechanical switch, comprising a key cap and a switch seat, wherein the bottom of the switch seat is detachably connected with a lower cover; a first fixed contact group and a second fixed contact group are arranged in the switch seat; the key cap is connected to a first movable conduction device via a guide shaft, a second movable conduction device is arranged below the first movable conduction device, a first reset device is arranged between the first movable conduction device and the second movable conduction device; the second movable conduction device is located between the first fixed contact group and the second fixed contact group, and the second movable conduction device is movably connected to the first fixed contact group; the second movable conduction device is provided with a third reset device. The anti-mis-touch mechanical switch is a two-stage structure, and the two switch groups are simultaneously turned on after being pressed to output, thereby solving the problem of office inconvenience and work efficiency affected by mis-touch that may occur during use.

Description

Technical Field

[0001] The invention relates to a keyboard, and in particular to an anti-mistouch mechanical switch. Background Art

[0002] A keyboard is a computer input device that allows the operator to control the computer by inputting a series of commands. A keyboard is generally composed of a base, buttons, and a signal transmission device. During operation, the operator only needs to tap the buttons with his fingers.

[0003] When using a computer for office work, it is inevitable to use a keyboard. Most traditional keyboards are evenly equipped with multiple independently set keys. Since the keys are generally arranged closely, when people tap the keys with their fingers, they often press one key and carry another key down due to the friction of the finger, causing an accidental touch, which leads to errors in input commands. This brings inconvenience to office work and affects work efficiency. The modification process is also time-consuming and laborious. When using the keyboard for a long time, the sweat on the fingers will adhere to the surface of the keys, causing people to feel slippery and uncomfortable, and it is more likely to cause the fingers to slide when pressing the keyboard, causing accidental touches. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention aims to provide an anti-mistouch mechanical switch which is convenient for office work, avoids mistakes and improves work efficiency.

[0005] The present invention is achieved through the following technical measures: the mechanical switch includes a keycap and a switch seat; a first fixed contact group and a second fixed contact group are arranged in the switch seat; the keycap is connected to the first movable conduction device via a guide shaft, a second movable conduction device is arranged below the first movable conduction device, and a first reset device is arranged between the first movable conduction device and the second movable conduction device; the second movable conduction device is located between the first fixed contact group and the second fixed contact group, and the second movable conduction device is movably connected to the first fixed contact group; the second movable conduction device is provided with a second reset device.

[0006] As a preferred embodiment, the guide shaft is passed through the switch seat, and the top of the guide shaft is used to connect with the key cap; the bottom of the guide shaft is connected with the first movable conduction device via a first return spring.

[0007] As a preferred embodiment, the guide shaft is passed through the switch seat, and the top of the guide shaft is used to connect with the key cap; the bottom of the guide shaft is connected with the first movable conduction device via a first return spring.

[0008] As a preferred embodiment, the first resetting device comprises a second resetting spring, and the first movable conducting device is connected to the second movable conducting device via the second resetting spring.

[0009] As a preferred embodiment, the second reset device includes a moving rod and a third reset spring sleeved on the moving rod; the moving rod is movably connected to the first fixed contact group, the moving rod is sleeved with the third reset spring, and the bottom of the moving rod is connected to the second moving conductive device.

[0010] As a preferred embodiment, the first fixed contact group includes a first fixed contact and a second fixed contact arranged on opposite sides of the side wall of the switch seat; the first fixed contact and the second fixed contact both include a contact and a connecting tube, the moving rod is passed through the connecting tube, a limiting convex ring is provided at the upper end of the moving rod, the third return spring is arranged between the limiting convex ring and the connecting tube, and the lower end of the moving rod is connected to the second moving conductive device.

[0011] As a preferred embodiment, the first movable conducting device and / or the second movable conducting device is a strip-shaped metal plate, and protrusions are provided at both ends of the surface of the metal plate.

[0012] As a preferred embodiment, an insulating member is provided between the first movable conducting device or the second movable conducting device or between the first movable conducting device and the second movable conducting device.

[0013] As a preferred embodiment, the insulating member is an insulating rubber coating coated on the surface of the second movable conductive device.

[0014] A mechanical keyboard for preventing accidental touches comprises a keyboard body, wherein a PCBA board and any of the above-mentioned mechanical switches for preventing accidental touches are arranged in the keyboard body.

[0015] As a preferred embodiment, a rotation slot for installing the mechanical switch is provided in the keyboard body.

[0016] The present invention provides an anti-mis-touch mechanical switch and mechanical keyboard. When a user presses a keycap, the guide shaft drives the first movable conduction device to move downward until it contacts the two movable rods, so that the first fixed contact group is conductive; the guide shaft continues to move downward, and the first movable conduction device drives the two movable rods to move downward, and then drives the second movable conduction device to move downward until it contacts the second fixed contact group, thereby confirming that the switch is formally pressed, and the keyboard MCU sends a code to confirm that the switch is conductive, thereby realizing the switch function. The anti-mis-touch mechanical switch is a two-stage structure. After pressing, the two sets of switches are conductive at the same time, and the switch can output, which solves the problem of office inconvenience and work efficiency affected by possible mis-touch during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a mechanical switch structure according to an embodiment of the present invention;

[0018] Figure 2 An exploded view of the mechanical switch structure of an embodiment of the present invention;

[0019] Figure 3 A schematic diagram of the structure of a mechanical keyboard according to an embodiment of the present invention;

[0020] Figure 4 The figure is a structural exploded view of a mechanical keyboard according to an embodiment of the present invention.

[0021] Serial numbers and names in the figure: 1, keycap 2, switch seat 21, lower cover 22, through hole 23, guide shaft 3, first fixed contact group 31, first fixed contact 32, second fixed contact 33, connecting tube 34, contact 4, second fixed contact group 5, first reset device 61, moving rod 62, third reset spring 63, limiting convex ring 7, first reset spring 8, first mobile conduction device 9, second mobile conduction device 10, keyboard body 11, rotating slot 12, PCBA board DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the embodiments and with reference to the accompanying drawings.

[0023] Embodiment 1

[0024] A mechanical switch to prevent accidental touch, reference Figures 1 to 4 , including a key cap 1 and a switch base 2, the bottom of the switch base 2 is detachably connected to a lower cover 21; a first fixed contact group 3 and a second fixed contact group 4 are arranged in the switch base 2; the key cap 1 is connected to the first movable conduction device 8 through a guide shaft 23, a second movable conduction device 9 is arranged below the first movable conduction device 8, and a first reset device 5 is arranged between the first movable conduction device 8 and the second movable conduction device 9; the second movable conduction device 9 is located between the first fixed contact group 3 and the second fixed contact group 4, and the second movable conduction device 9 is movably connected to the first fixed contact group 3; the second movable conduction device 9 is provided with a third reset device.

[0025] Specifically, the side wall of the switch base 2 is provided with a through hole 22 for installing the first fixed contact group 3 and the second fixed contact group 4; the first fixed contact group 3 includes a first fixed contact 31 and a second fixed contact 32 arranged on the opposite side of the side wall of the switch base 2, and the second fixed contact group 4 includes a third fixed contact and a fourth fixed contact symmetrically arranged on the side wall of the switch base 2, the first fixed contact group 3 and the second fixed contact group 4 are arranged in parallel, the second fixed contact group 4 is close to the side bottom of the switch base 2, and the first fixed contact group 3 is located above the second fixed contact group 4; the first fixed contact group 3 and the second fixed contact group 4 are both normally open contacts, the first fixed contact group 3 is connected to the conventional keyboard PCBA board 12, and the second fixed contact group 4 is a confirmation switch, one end of which is connected to an independent IO and the other end is connected to GND; the first fixed contact group 3 and the second fixed contact group 4 are insulated from each other.

[0026] Among them, the first mobile conductive device 8 and the second mobile conductive device 9 are strip-shaped metal plates with protrusions at both ends of the surface of the metal plates, and the surface of the second fixed contact group 4 has matching protrusions at both ends to facilitate contact and conduction between the metal plates and the contacts (contacts).

[0027] For further reference, Figure 2 The guide shaft 23 is passed through the switch seat 2, and the top of the guide shaft 23 is used to connect with the key cap 1; the bottom of the guide shaft 23 is connected with the first movable conductive device 8; in this embodiment, a first return spring 7 is provided between the guide shaft 23 and the first movable conductive device 8, and its resilience is better.

[0028] For further reference, Figure 2 The second resetting device is used to reset the second movable conducting device 9 . In this embodiment, the second resetting device is preferably a second resetting spring 5 , and the first movable conducting device 8 is connected to the second movable conducting device 9 via the second resetting spring 5 .

[0029] For further reference, Figure 2 The third reset device includes a moving rod 61 and a third reset spring 62 sleeved on the moving rod 61, and the moving rod 61 is made of metal material; the first fixed contact 31 and the second fixed contact 32 both include a contact 34 and a connecting tube 33, the moving rod 61 is passed through the connecting tube 33, a limiting convex ring 63 is provided at the upper end of the moving rod 61, the moving rod 61 is sleeved with a third reset spring 62, the third reset spring 62 is provided between the limiting convex ring 63 and the connecting tube 33, and the lower end of the moving rod 61 is connected to the second moving conductive device 9.

[0030] For further reference, Figure 2An insulating member is provided between the first mobile conducting device 8 or the second mobile conducting device 9 or between the first mobile conducting device 8 and the second mobile conducting device 9; in this embodiment, it is preferably provided as an insulating rubber package covered on the surface of the second mobile conducting device 9 to achieve mutual insulation between the first mobile conducting device 8 and the second mobile conducting device 9.

[0031] The working principle of this mechanical switch is: the user presses the keycap 1, and the guide shaft 23 drives the first movable conductive device 8 to move downward until it contacts the two movable rods 61, so that the first fixed contact group 3 is conductive; the guide shaft 23 continues to move downward, and the first movable conductive device 8 drives the two movable rods 61 to move downward, and then drives the second movable conductive device 9 to move downward until it contacts the second fixed contact group 4, thereby confirming that the switch is formally pressed, and the keyboard MCU sends a code to confirm that the switch is conductive, thereby realizing the switch function.

[0032] The anti-mis-touch mechanical switch has a two-stage structure. After pressing, the two sets of switches are turned on at the same time to output, which solves the problem of office inconvenience and work efficiency affected by mis-touch that may occur during use.

[0033] Embodiment 2

[0034] This embodiment provides an anti-mistouch mechanical keyboard. Figure 3 and Figure 4 , comprising a keyboard body 10, a PCBA board 12 arranged in the keyboard body 10, and the mechanical switch described in the first embodiment. The mechanical keyboard solves the problem of office inconvenience and work efficiency affected by mis-touch that may occur during use.

[0035] Furthermore, a rotation slot 11 for installing a mechanical switch is provided in the keyboard body 10, which is convenient for installation and removal.

[0036] The above is an explanation of an anti-mistouch mechanical switch and a mechanical keyboard of the present invention, which is used to help understand the present invention. However, the implementation mode of the present invention is not limited to the above-mentioned embodiments. Any changes, modifications, substitutions, combinations, and simplifications made without departing from the principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A mechanical switch for preventing accidental touch, characterized in that: The mechanical switch comprises a key cap and a switch seat; a first fixed contact group and a second fixed contact group are arranged in the switch seat; the key cap is connected to a first movable conduction device via a guide shaft, a second movable conduction device is arranged below the first movable conduction device, a first reset device is arranged between the first movable conduction device and the second movable conduction device; the second movable conduction device is located between the first fixed contact group and the second fixed contact group, the second movable conduction device is movably connected to the first fixed contact group; the second movable conduction device is provided with a second reset device; The second reset device includes a moving rod and a third reset spring sleeved on the moving rod; the moving rod is movably connected to the first fixed contact group, the moving rod is sleeved with the third reset spring, and the bottom of the moving rod is connected to the second moving conduction device.

2. The anti-mistouch mechanical switch according to claim 1, characterized in that: The guide shaft is passed through the switch seat, and the top of the guide shaft is used to be connected with the key cap; the bottom of the guide shaft is connected with the first moving conduction device via a first return spring.

3. The anti-mistouch mechanical switch according to claim 1, characterized in that: The first reset device comprises a second reset spring, and the first movable conduction device is connected to the second movable conduction device via the second reset spring.

4. The anti-mistouch mechanical switch according to claim 1, characterized in that: The first fixed contact group includes a first fixed contact and a second fixed contact arranged on opposite sides of the side wall of the switch seat; the first fixed contact and the second fixed contact both include a contact and a connecting tube, the moving rod is passed through the connecting tube, a limiting convex ring is provided at the upper end of the moving rod, the third return spring is arranged between the limiting convex ring and the connecting tube, and the lower end of the moving rod is connected to the second moving conductive device.

5. The anti-mistouch mechanical switch according to claim 1, characterized in that: The first movable conducting device and / or the second movable conducting device is a strip-shaped metal plate, and protrusions are provided at both ends of the surface of the metal plate.

6. The anti-mistouch mechanical switch according to claim 1, characterized in that: An insulating member is provided between the first movable conducting device or the second movable conducting device or between the first movable conducting device and the second movable conducting device.

7. The anti-mistouch mechanical switch according to claim 6, characterized in that: The insulating member is an insulating rubber coating covering the surface of the second movable conductive device.

8. An anti-mistouch mechanical keyboard, characterized in that: The keyboard comprises a keyboard body, wherein a PCBA board and the anti-mistouch mechanical switch according to any one of claims 1 to 7 are arranged inside the keyboard body.

9. The anti-mistouch mechanical keyboard according to claim 8, characterized in that: A rotation slot for installing the mechanical switch is arranged in the keyboard body.

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