CN204332780U - A mechanical keyboard key switch - Google Patents

Abstract

The utility model discloses a mechanical keyboard key switch, which is welded on a printed circuit board of a mechanical keyboard, and includes a keycap, an upper cover, a base, a shaft core, a reset spring, and a contact spring, wherein the keycap is connected to the top of the shaft core, the upper cover is located above the base, the shaft core is located between the upper cover and the base, the upper and lower ends of the reset spring are respectively against the shaft core and the base, the contact spring is located on the side of the shaft core, and a light guide mechanism is provided between the middle of the shaft core and the base; the combination mechanism connecting the keycap and the shaft core is located on both sides of the upper end of the light guide mechanism, and the space above the middle of the shaft core is a light scattering area; an LED is provided on the printed circuit board directly below or below the light guide mechanism. The utility model provides a light guide mechanism between the shaft core and the base, and provides an LED on the printed circuit board directly below or below the light guide mechanism, and the light guide effect is good, not only the brightness is uniform, but also the advantages of the traditional mechanical opening are retained, and the pressing is very smooth.

Description

A mechanical keyboard key switch

Technical field:

The utility model relates to the technical field of computer peripherals, in particular to a mechanical keyboard key switch.

Background technique:

General mechanical keyboards generally use German cherry type key switches, which have an upper cover, a base, a shaft core, a spring and a contact shrapnel; there is a vertical sleeve in the middle of the base, and the inverted transparent column at the lower end of the shaft core slides in the sleeve. . Mechanical keyboards generally use backlight projection, so plug-in or SMD LEDs are installed on the side of the key switch, but this will cause uneven brightness, especially the shaft core of the cherry type key switch is distinguished by color. Different contact shrapnels block the light. Therefore, the general mechanical keyboard places the characters above the keys, but this makes the font smaller.

Although there are many new designs that set the LED light in the center of the button, such a design must cancel the inverted transparent column at the lower end of the shaft core, and the diameter of the vertical sleeve and spring in the middle of the base must also be enlarged many times, which causes sequelae. It is the phenomenon that the side of the pressed button will not be smooth, which deviates from the goal of smoothness required by the mechanical keyboard.

Utility model content:

The purpose of the utility model is to provide a new mechanical keyboard key switch for the shortcomings of the prior art, which has the advantages of uniform brightness and smooth pressing.

In order to achieve the above object, a mechanical keyboard key switch of the present utility model is welded on the printed circuit board of the mechanical keyboard, and includes a keycap, an upper cover, a base, a shaft core, a return spring and a contact shrapnel, wherein the key The cap is connected to the top of the shaft core, the upper cover is located above the base, the shaft core is located between the upper cover and the base, the upper and lower ends of the return spring are respectively against the shaft core and the base, and the contact spring is located on the side of the shaft core. There is a light guide mechanism between the keycap and the base; the combination mechanism connecting the keycap and the shaft core is located on both sides of the upper end of the light guide mechanism, and the space above the middle of the shaft core is the light scattering area; the printed circuit board is located directly below or on the side of the light guide mechanism There are LEDs below.

As a preference of the above technical solution, the light guide mechanism is composed of a column protruding from the lower end surface of the shaft core, a first diffusing lens on the upper end surface, and a sleeve in the middle of the base, wherein the column is transparent and slidably fits with the sleeve .

As a preference of the above technical solution, the bottom of the sleeve in the middle of the base is open, and the LED is located directly below the opening of the bottom of the sleeve.

As a preference of the above technical solution, the bottom of the casing in the middle of the base is closed, and the LED is located on one side of the bottom of the casing.

As a preference of the above technical solution, the light guiding mechanism is composed of a guiding tube in the middle of the shaft core and a transparent light guiding column arranged in the middle of the base, and the top of the transparent light guiding column forms a second scattering lens.

As a preference of the above technical solution, a metal reflective tube is further arranged between the light guide column and the guide tube.

As a preference of the above technical solution, the light guide mechanism is composed of a guide tube in the middle of the shaft core and a light guide sleeve arranged in the middle of the base, and the light guide sleeve and the guide tube are slidably fitted.

As a preference of the above technical solution, an inverted wall is further provided between the base and the printed circuit board, and the bottom of the inverted wall has welding posts connected with the printed circuit board.

The beneficial effect of the utility model is that: a light guide mechanism is arranged between the shaft core and the base, and LEDs are arranged on the printed circuit board directly below or under the side of the light guide mechanism, the light guide effect is good, not only the brightness is uniform, but also the In addition to the advantages of traditional mechanical lighting, pressing is very smooth.

Description of drawings:

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is the structural representation of the utility model embodiment one;

Fig. 2 is the structural representation of the second embodiment of the utility model;

Fig. 3 is the structural representation of the utility model embodiment three;

Fig. 4 is a schematic structural diagram of Embodiment 4 of the present utility model.

Fig. 5 is a schematic structural diagram of Embodiment 5 of the present utility model.

Detailed ways:

See Embodiment 1 shown in Fig. 1: a kind of mechanical keyboard key switch of the present utility model, is welded on the printed circuit board A of mechanical keyboard, comprises key cap 10, upper cover 20, base 30, axle core 40 , the return spring 50 and the contact shrapnel 60, wherein the keycap 10 is connected to the top of the shaft core 40, the upper cover 20 is located above the base 30, the shaft core 40 is located between the upper cover 20 and the base 30, and the upper and lower ends of the return spring 50 are respectively against On the shaft core 40 and the base 30, the contact elastic piece 60 is located on the side of the shaft core 40. There is a light guide mechanism between the middle of the shaft core 40 and the base 30. , the first diffusing lens 42 on the upper end surface and the bushing 31 in the middle of the base 30, wherein the column 41 is transparent and slidably fitted with the bushing 31; the printed circuit board A is set at the position directly below the bottom opening of the bushing 31 There are LED70. In addition, an inverted wall 80 is provided between the base 30 and the printed circuit board A, and the bottom of the inverted wall 80 has a welding column 81 connected with the printed circuit board A. As shown in FIG. ,

The difference between the second embodiment shown in FIG. 2 and the first embodiment shown in FIG. 1 is that the bottom of the sleeve 31 in the middle of the base 30 is closed, and the LED 70 is located at the bottom side of the sleeve 31 .

The difference between the embodiment shown in FIG. 3 and the embodiment shown in FIGS. 1 and 2 is that the light guiding mechanism is composed of a guiding tube 44 in the middle of the shaft core 40 and a transparent light guiding column 90 arranged in the middle of the base 30. The top of the transparent light guiding column 90 The second diffusing lens 901 is formed, and the rest is the same as the first embodiment.

In the embodiment shown in Fig. 4, a metal reflective tube 100 is also arranged between the light guide column 90 and the guide tube 44. In addition, the upper surface of the shaft core 40 is inclined to reduce the height of the light guide column 90, and the rest are the same as those shown in Fig. 2 The embodiment is the same.

In the embodiment shown in FIG. 5 , the light guide mechanism is composed of a guide tube 44 in the middle of the shaft core 40 and a light guide sleeve 110 arranged in the middle of the base 30 . The light guide sleeve 110 and the guide tube 44 are slidably fitted. , and the rest are the same as the embodiment shown in FIG. 2 .

Claims (8)

1. A mechanical keyboard key switch, welded on the printed circuit board (A) of the mechanical keyboard, comprising a keycap (10), an upper cover (20), a base (30), a shaft core (40), a reset The spring (50) and the contact shrapnel (60), wherein the keycap (10) is connected to the top of the shaft core (40), the upper cover (20) is located above the base (30), and the shaft core (40) is located on the upper cover (20) Between and the base (30), the upper and lower ends of the return spring (50) are respectively against the shaft core (40) and the base (30), and the contact shrapnel (60) is located on the side of the shaft core (40), which is characterized in that: There is a light guide mechanism between the middle part of the shaft core (40) and the base (30); the coupling mechanism where the keycap (10) is connected to the shaft core (40) is located on both sides of the upper end of the light guide mechanism, above the middle part of the shaft core (40) The space is a light scattering area; LEDs (70) are arranged on the printed circuit board (A) directly under or under the side of the light guide mechanism. 2. The mechanical keyboard key switch according to claim 1, characterized in that: the light guide mechanism is composed of a column (41) protruding from the lower end surface of the shaft core (40), a first scattering lens (42) on the upper end surface ) and the sleeve pipe (31) at the middle part of the base (30) constitutes, wherein the column (41) is transparent and fits slidingly with the sleeve pipe (31). 3. The mechanical keyboard key switch according to claim 2, characterized in that: the bottom of the sleeve (31) in the middle of the base (30) is open, and the LED (70) is located at the bottom opening of the sleeve (31) directly below the . 4. The mechanical keyboard key switch according to claim 2, characterized in that: the bottom of the sleeve (31) in the middle of the base (30) is closed, and the LED (70) is located on one side of the bottom of the sleeve (31). 5. The mechanical keyboard key switch according to claim 1, characterized in that: the light guide mechanism consists of a guide tube (44) in the middle of the shaft core (40) and a transparent light guide column arranged in the middle of the base (30) (90), a second scattering lens (901) is formed on the top of the transparent light guide column (90). 6. The mechanical keyboard key switch according to claim 5, characterized in that: a metal reflective tube (100) is also arranged between the light guide column (90) and the guide tube (44). 7. The mechanical keyboard key switch according to claim 1, characterized in that: the light guide mechanism consists of a guide tube (44) in the middle of the shaft core (40) and a light guide sleeve arranged in the middle of the base (30) The tube (110) is formed, and the light guide sleeve (110) is slidingly fitted with the guide tube (44). 8. The mechanical keyboard key switch according to any one of claims 1 to 7, characterized in that: an inverted wall (80) is also provided between the base (30) and the printed circuit board (A), The bottom of the inverted wall (80) has welding posts (81) connected with the printed circuit board (A).