CN204270950U - Illuminated keyboard switches - Google Patents

Abstract

The utility model discloses a luminous keyboard switch, which comprises a base, a static contact piece, a movable contact piece, an upper cover and a key for controlling the movable contact piece to contact with or separate from the static contact piece; the static contact piece and the movable contact piece are arranged on the base, and the welding foot of the static contact piece and the welding foot of the movable contact piece extend out of the base; the upper cover is arranged on the base; the key is arranged on the base, the upper cover is exposed out of the base, and a return spring is arranged aiming at the key; a light guide plate is arranged below the base, a light source is arranged corresponding to the light guide plate, light through holes penetrating downwards to the light guide plate are correspondingly formed in the base and the upper cover, and light of the light source is transmitted by the light guide plate and then is emitted outwards through the light through holes; the light guide plate and the light through hole are arranged, so that a plurality of keyboard switches share the light source, the number of used light sources is greatly reduced, the production and manufacturing cost is saved, and meanwhile, the maintenance and management are facilitated.

Description

Illuminated keyboard switches

technical field

The utility model relates to the technology in the field of keyboard switches, in particular to a luminous keyboard switch.

Background technique

Keyboard switch, as the name implies, is a switch applied and installed on the keyboard. The main structure of this switch includes a base, an upper cover, a static contact, a moving contact and a button. The upper cover and the base are enclosed to form a The accommodating cavity, the static contact piece, the moving contact piece and the button piece are arranged in the accommodating cavity, and one end of the button piece is exposed outside the accommodating cavity, by pressing and manipulating the button piece, the button piece moves up and down, and then through the button The component acts on the moving contact piece, so that the moving contact piece is connected or disconnected from the static contact piece.

During the operation of the traditional keyboard switch, the user cannot intuitively judge the on/off status of the key switch, so the user will be more troubled when operating. At present, there are some keyboard switches with lights on the market, which set an LED light for each keyboard switch to realize the lighting function of the keyboard switch; in actual production, it is often found that there are disadvantages such as complex structure and high production cost. , in the process of use, it is necessary to maintain the LED lamp of a single keyboard switch, which is troublesome, especially for the exposed LED lamp, the frequency of maintenance and replacement is higher.

Therefore, it is necessary to develop a new technical solution to solve the foregoing problems.

Utility model content

In view of this, the utility model aims at the deficiency of the existing technology, and its main purpose is to provide a luminous keyboard switch, which realizes the shared light source of multiple keyboard switches through structural settings such as light guide plates and light passages, greatly reducing the number of light sources. The quantity used saves the production cost, and at the same time, it is also convenient for maintenance and management.

In order to achieve the above object, the utility model adopts the following technical solutions:

A luminous keyboard switch, including a base, a static contact piece, a moving contact piece, an upper cover, and a button for controlling the contact or separation between the moving contact piece and the static contact piece; the static contact piece and the moving contact piece are both arranged on the base , the welding feet of the static contact piece and the welding feet of the moving contact piece both extend out of the base, and the upper cover is installed on the base; the button is arranged on the base and exposes the upper cover, and a return spring is provided for the button; the base A light guide plate is provided below, and a light source is provided corresponding to the light guide plate. The base and the upper cover are correspondingly provided with a light passage that penetrates downwards to the light guide plate.

As a preferred solution, the light passage runs through the center of the base, the upper cover and the key.

As a preferred solution, the center of the base protrudes upwards and is provided with a guide column for guiding the button to move up and down, and a through hole is opened in the axial center of the button, and the guide column is adapted to the through hole and inserted from bottom to top In the through hole: the aforementioned light passage runs through the top surface of the guide post to the bottom surface of the base.

As a preferred solution, the light passage runs through the side of the base and the upper cover.

As a preferred solution, a circuit board is arranged under the base, the aforementioned light guide plate is located under the circuit board, and a through hole is opened on the circuit board corresponding to the aforementioned light through channel.

As a preferred solution, a light guide column is embedded in the light passage, and the light from the aforementioned light source is transmitted to the outside through the light guide plate and the light guide column.

As a preferred solution, the light source is arranged at a lateral position of the light guide plate.

As a preferred solution, the light source is a single-color LED lamp or a multi-color LED lamp.

As a preferred solution, the upper and lower sides of the light guide column have the same size, and an arc light exit surface is formed on the top; or, the light guide column includes a rod body at the lower end and a cap body at the upper end, and the cap body has a section larger than the rod body and extends beyond the rod body On the periphery of the section, the top of the cap body is formed with a circular arc light-emitting surface.

As a preferred solution, the light guide column includes a rod body at the lower end and a light guide ring body at the upper end; wherein, the shape of the light guide ring body is adapted to the shape of the outer edge of the upper cover, and a through hole is opened in the middle of the light guide ring body , the light guide ring body is covered on the top of the upper cover, the aforementioned buttons pass through the relief through hole in the light guide ring body; the upper end of the aforementioned rod body is integrally connected to one side of the light guide ring body, and the rod body is located in the aforementioned light passageway.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it mainly realizes the shared light source of multiple keyboard switches through the configuration of light guide plates and light passages. The number of light sources used is greatly reduced, and the production cost is saved. The number of light sources is small, and it is also convenient for maintenance and management. At the same time, compared with the exposed light source, the light source of the utility model is not easy to be damaged, and its service life is longer, reducing maintenance. Change frequency.

In order to illustrate the structural features and functions of the utility model more clearly, the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the perspective view of the assembly of Embodiment 1 of the present utility model;

Fig. 2 is an exploded structure diagram of Embodiment 1 of the present utility model (without light guiding column);

Fig. 3 is a structural diagram of a single-color LED lamp applicable to the luminous keyboard switch shown in Fig. 2;

Fig. 4 is an exploded structure diagram of Embodiment 2 of the present utility model (with a light guide column);

Fig. 5 is a further exploded structure diagram of Embodiment 2 shown in Fig. 4;

Fig. 5a is another structural light guide column that can be optionally applied in the embodiment shown in Fig. 5;

Fig. 6 is a cross-sectional structural diagram of the decomposed state shown in Fig. 5;

Fig. 7 is a cross-sectional structural view of the assembled state of the second embodiment shown in Fig. 4;

Fig. 8 is a diagram of the application state of the second embodiment shown in Fig. 4;

Fig. 9 is an exploded structure diagram of Embodiment 3 of the present utility model (without light guiding column);

Fig. 10 is an exploded structure diagram of Embodiment 4 of the present utility model (with a light guide column);

Fig. 11 is a further exploded structure diagram of Embodiment 4 shown in Fig. 10;

Fig. 12 is a cross-sectional view of the assembled state of the fourth embodiment shown in Fig. 10;

Fig. 13 is an exploded structural view of another light guide column structure that can be optionally applied in Embodiment 4 shown in Fig. 10;

Fig. 14 is an assembled cross-sectional structure diagram of the embodiment shown in Fig. 13;

FIG. 15 is an assembly cross-sectional structural view of an embodiment of the light guide column structure in FIG. 5 a .

Explanation of the accompanying drawings:

11. Base 12. Static contact piece

13. Moving contact piece 14. Top cover

15. Button 16. Return spring

17. Light guide plate 18. Panel

19. Keycap 20. Light-through hole

21. Circuit board 22. Through hole

23. Light guide post 24. Guide post

25. Through hole 26. Colorful LED lights

27. Monochrome LED light 28. Light guide column

29. Rod body 30. Cap body

31. Light guide column 32. Rod body

33. Light-guiding ring body 34. Give way to the through hole.

Detailed ways

Please refer to Figures 1 to 15, which show the specific structures of various embodiments of the present invention. The luminous keyboard switch includes a base 11, a static contact 12, a moving contact 13, an upper cover 14 and a The button 15 used to control the contact or separation between the movable contact piece 13 and the static contact piece 12; The feet all protrude from the base 11, the upper cover 14 is installed on the base 11, the lower part of the base 11 is hidden under the panel 18; The spring 16 is connected with a keycap 19 above the button.

A light guide plate 17 is provided under the base 11, and a light source 18 is provided corresponding to the light guide plate 17. The base 11 and the upper cover 14 are correspondingly provided with a light passage 20 penetrating downward to the light guide plate 17. The light from the light source 18 passes through the light guide plate. 17 conducts and then shoots out from the light passage 20; as shown in Figure 8, through the structural settings of the light guide plate 17 and the light passage 20, multiple keyboard switches share the light source, which greatly reduces the number of light sources used and saves production. Cost; here, a circuit board 21 is arranged under the base 11, and the aforementioned light guide plate 17 is located below the circuit board 21 (the light guide plate 17 can also be arranged above the circuit board 21, which is not limited here), the circuit board 21 There is a through hole 22 corresponding to the above-mentioned light passage 20; a light guide column 23 can be embedded in the light passage 20 (it can also be directly guided by the light passage 20, that is, air conduction), and the light is transmitted through the light guide post 23. The light from the aforementioned light source 18 is transmitted outward through the light guide plate 17 and the light guide column 23; The light source 18 can be a single-color LED lamp 27 or a multi-color LED lamp 26, etc., and its quantity can be set as required, one or more than one can be used. The service life is longer, and the frequency of maintenance and replacement is reduced; of course, the panel 18 can be used or not as required, and it is not a necessary component of the product of the present invention.

The above-mentioned light passage 20 can be arranged at different positions of the keyboard switch as required. In the embodiment shown in FIGS. , the center position of the upper cover 14 and the button 15; the center of the base 11 protrudes upward and is provided with a guide post 24 for guiding the button 15 to move up and down, and the axial center of the button 15 is provided with a through hole 25, and the guide post 24 Adapted to the through hole 25 and inserted into the through hole 25 from bottom to top; the aforementioned light passage 20 runs through the top surface of the guide post 24 to the bottom surface of the base 11; in the embodiment shown in Figures 9 to 12, the The light passage 20 penetrates through the sides of the base 11 and the upper cover 14 .

It can be seen from Fig. 5, Fig. 5a, Fig. 10 and Fig. 13 that various structures of the light guide column are shown;

In Fig. 5 and Fig. 10, the size of the light guide column 23 is the same up and down, the top of which is formed with an arc light emitting surface, and the light guide column 23 can be in the shape of a cylinder or a cube;

As shown in Figure 5a and Figure 15, the light guide column 28 includes a rod body 29 at the lower end and a cap body 30 at the upper end. The arc light emitting surface, the widened cap body 30 is used as the light emitting part, which is beneficial to improve the light emitting effect;

As shown in Figures 13 and 14, the light guide column 31 includes a rod body 32 at the lower end and a light guide ring body 33 at the upper end; the structure of this light guide column 31 is suitable for the light passage 20 arranged on the side; wherein, the light guide ring body The shape of 33 is adapted to the shape of the outer edge of the aforementioned upper cover 14. The light guide ring 33 is provided with a relief through hole 34. The light guide ring 33 is covered on the top of the upper cover 14. Give way to the through hole 34; the upper end of the aforementioned rod body 32 is integrally connected to one side of the light guide ring body 33, and the rod body 32 is located in the aforementioned light passageway 20; Uniformity, increased luminous area, better luminous effect.

The key point of the design of this utility model is that it mainly realizes the shared light source of multiple keyboard switches through the structural arrangement of the light guide plate and the light passage, which greatly reduces the number of light sources used and saves the production cost. The number of light sources is small and convenient. Maintenance and management. At the same time, compared with the exposed light source, the light source of the utility model is not easily damaged, has a longer service life, and reduces the frequency of maintenance and replacement.

The above are only preferred embodiments of the present utility model, and do not limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model , all still belong to the scope of the technical solution of the utility model.

Claims (10)

1. an illuminated keyboard switch, includes base, static contact, movable contact spring, upper cover and for controlling the button that movable contact spring to contact with static contact or is separated; This static contact and movable contact spring are all arranged on base, and the welding foot of this static contact and the welding foot of movable contact spring all extend outside the base, and this upper cover is installed on base; This button to be arranged on base and to expose upper cover, this button is provided with back-moving spring, it is characterized in that: below this base, be provided with light guide plate, corresponding light guide plate is provided with light source, this base and upper cover correspondence offer the through light hole road to light guide plate downwards, and the light of this light source is outwards penetrated by light hole road through light guide plate conduction again.

2. illuminated keyboard switch according to claim 1, is characterized in that: described light hole road runs through the center of base, upper cover and button.

3. illuminated keyboard switch according to claim 2, it is characterized in that: the center of described base is convex to be provided with for guiding button up and down guide pillar, the axial centre of this button offers through hole, this guide pillar and through hole is suitable and plug-in mounting is in through-holes from lower to upper; Aforementioned light hole road runs through the top end face of guide pillar to base bottom face.

4. illuminated keyboard switch according to claim 1, is characterized in that: described light hole road runs through the other position, side of base and upper cover.

5. illuminated keyboard switch according to claim 1, it is characterized in that: be provided with circuit board below described base, aforementioned light guide plate is positioned at below circuit board, and on this circuit board, corresponding aforementioned light hole road offers through hole.

6. illuminated keyboard switch according to any one of claim 1 to 5, is characterized in that: be embedded with light-guiding pillar in described light hole road, and the light of said light source is through light guide plate, light-guiding pillar conduction outwards injection.

7. illuminated keyboard switch according to claim 1, is characterized in that: described light source is arranged at the lateral position of light guide plate.

8. illuminated keyboard switch according to claim 1, is characterized in that: described light source is monochromatic LED lamp or colorful LED lamp.

9. illuminated keyboard switch according to claim 6, it is characterized in that: the upper and lower size of described light-guiding pillar is identical, its top is formed with circular arc exiting surface; Or described light-guiding pillar includes the body of rod of lower end and the cap body of upper end, and this cap body section is greater than the body of rod and extends beyond body of rod section peripheral, this cap body top is formed with circular arc exiting surface.

10. illuminated keyboard switch according to claim 6, is characterized in that: described light-guiding pillar includes the body of rod of lower end and the guide-lighting ring body of upper end; Wherein, this guide-lighting ring body shape and aforementioned upper cover outer rim shape adaptation, offer through hole of stepping down in the middle of this guide-lighting ring body, this guide-lighting ring body covers in tops, and aforementioned keys is through the through hole of stepping down in guide-lighting ring body; Aforementioned body of rod upper end is integrally connected to the side of guide-lighting ring body, and this body of rod is positioned at aforementioned light hole road.