CN202796586U - Luminous keyboard device - Google Patents

Abstract

The utility model discloses a light-emitting keyboard device, which includes a light-emitting module. The light-emitting module includes a light guide plate and at least one light source. The light guide plate includes a plurality of through holes. The light source has an optical axis; a base plate is located on the light-emitting module. One side of the hook body has a plurality of hook bodies. The hook body is accommodated in the through hole. Each hook body has a stopper and a flange. The extension direction of the stopper is generally parallel to the through hole. The optical axis of the light source also includes a contact surface with a larger area, the normal line of each contact surface is perpendicular to the optical axis, and the extension direction of the flange portion is generally perpendicular to the optical axis of the light source; at least one button The unit is located above the light-emitting module and includes an intersecting first bracket and a second bracket. One end of the first bracket and the second bracket is located between the bottom plate and the flange portion and abuts against the abutment. noodle. The luminous keyboard device disclosed by the utility model can increase the efficiency of light transmission.

Description

Illuminated keyboard device

technical field

The utility model relates to a keyboard device, in particular to a luminous keyboard device.

Background technique

With reference to FIG. 1 , there are three-dimensional exploded views of the light-emitting module and the bottom plate of the conventional light-emitting keyboard device. The light emitting module 50 includes a light source 52 and a light guide plate 54, the light source 52 has an optical axis I, the light source 52 is arranged on a side (light incident surface) 540 of the light guide plate 54, and forms a The side-emission light emitting module is used for illuminating the key unit (not shown) arranged above the light emitting module 50 . There are a plurality of through holes 542 on the light guide plate 54 , and light incident on the light guide plate 54 from the side surface (light incident surface) 540 can exit through the walls of the through holes 542 , as shown in FIG. 2 .

The bottom plate 60 is located at the bottom of the light emitting module 50 , and is formed with a plurality of hook bodies 62 by punching, and the hook bodies 62 are accommodated in the through holes 542 . Each hook body 62 includes a stopper portion 620 and a flange portion 622 extending outward from the top edge of the stopper portion 620. The extension direction of the stopper portion 620 and the flange portion 622 is substantially perpendicular to the light source. The optical axis I of 52. The flange portion 622 is used to pivotally connect the button unit disposed on the light emitting module 50 so that the button unit can move up and down relative to the bottom plate 60 .

Each of the stoppers 620 is roughly rectangular and has a surface 621 and an abutment surface 624 for fixing the button unit. The surface 621 is a side of the stopper 620 with a larger area, and the area of the surface 621 is larger than the The area of the abutting surface 624 ; the surface 621 has a normal n, and the normal n of the surface 621 is parallel to the optical axis I of the light source 52 .

Referring to FIG. 2 and FIG. 3 again, the light emitted by the light source 52 is incident on the light guide plate 54 from the side (light incident surface) 540 , and the light entering the light guide plate 54 exits from the hole wall of the through hole 542 . The extension direction of the stopper portion 620 and the flange portion 622 is approximately perpendicular to the optical axis I of the light source 52, therefore, most of the light emitted from the wall of the through hole 542 is blocked by the surface 621, so that the light Inability to deliver a substantial reduction in efficiency.

Utility model content

An object of the present invention is to provide a luminous keyboard device to increase the efficiency of light transmission.

To achieve the above purpose, the utility model provides a luminous keyboard device, the luminous keyboard device includes a light emitting module, a base plate and at least one key unit, the light emitting module includes a light guide plate and at least one light source, the light guide plate includes at least two Through the hole, the light source has an optical axis and is arranged on a light incident surface of the light guide plate. The base plate is located below the light-emitting module and has at least two hook bodies, which are correspondingly accommodated in the through hole, each of the hook bodies has a stop portion and a flange portion, and the stop portion The extension direction of the flange part is substantially parallel to the optical axis of the light source and includes a larger abutment surface, the normal line of the abutment surface is perpendicular to the optical axis, and the extension direction of the flange part is substantially perpendicular to the light source. Optical axis; the button unit is located above the light-emitting module and includes a keycap and a first bracket and a second bracket intersecting, one end of the first bracket and the second bracket is coupled to the keycap, and the other end It is located between the bottom plate and the flange portion and abuts against the abutting surface.

Wherein, one end of the first bracket has at least one first limit rod, one end of the second bracket has at least one second limit rod, and the first limit rod and the second limit rod are respectively located on the bottom plate. and the flange portion and abuts against the abutting surface.

Wherein, a circuit board is further included, which is arranged on the light-emitting module, and the circuit board is provided with an opening at a position corresponding to the hook body, and the hook body is accommodated in the opening.

Wherein, an elastic member is further included, which is located under the keycap and is used as a source of elastic force for the keycap to move up and down relative to the bottom plate.

Wherein, it further includes a shading plate, which is arranged on the circuit board, and the shading plate is provided with a perforation at a position corresponding to the hook body, and the hook body is accommodated in the through hole, and the shading plate is located at a position corresponding to the elastic member. A through hole is arranged at the position, and the elastic member touches the circuit board through the through hole to trigger the pressing signal.

Wherein, the button unit further includes a pivot pivotally connected to the intersection of the first bracket and the second bracket.

Wherein, an assembly surface of the keycap has a plurality of positioning slots, the other end of the first bracket has at least one first connecting rod, the other end of the second bracket has at least one second connecting rod, and the first connecting rod The rod and the second connecting rod are coupled to the positioning slot.

Wherein, the light-emitting module is a side-firing light-emitting module.

Wherein, the light source is a light emitting diode.

The extension direction of the stopper of the hook body of the light-emitting keyboard device of the present invention is roughly parallel to the optical axis of the light source, so that the light emitted from the through hole can be effectively reduced by the stopper. Blocking, and greatly increasing the efficiency of light transmission.

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the utility model.

Description of drawings

FIG. 1 is a three-dimensional exploded view of a light-emitting module and a bottom plate of a conventional light-emitting keyboard device.

FIG. 2 is a partial cross-sectional view of a light-emitting module and a bottom plate of an existing light-emitting keyboard device and a schematic diagram of light traveling paths.

FIG. 3 is a top view of a conventional light-emitting module and a base plate.

Fig. 4 is a three-dimensional exploded view of the luminous keyboard device of the present invention.

Fig. 5 is a three-dimensional assembled view of the luminous keyboard device of the present invention.

Fig. 6 is a top view of the light emitting module and the base plate of the present invention.

FIG. 7 is a partial cross-sectional view of the light-emitting module and the base plate of the present invention and a schematic diagram of the light traveling path.

Among them, reference signs:

10: Illuminated keyboard device

110, 50: light emitting module

112, 52: light source

114, 54: light guide plate

1140, 542: through holes

1142: light incident surface

1144: board surface

120, 60: Bottom plate

122, 62: hook body

1220, 620: stopper

1221, 624: abutment surface

1222, 622: flange part

130: Button unit

132: Keycap

1320: pressing surface

1321: character symbol

1323: positioning card slot

134: First Bracket

1340: first connecting rod

1342: The first limit lever

136: second bracket

1360: Second connecting rod

1362: Second limit lever

138: Pivot

140: circuit board

142: opening

150: Elastic parts

160: Visor

162: perforation

164: through hole

540: side (light incident surface)

621: surface

C: central axis

I: optical axis

n: normal

Detailed ways

Cooperate with reference to FIG. 4 and FIG. 5 , which are respectively a three-dimensional exploded view and a three-dimensional assembled view of the luminous keyboard device of the present invention. The light-emitting keyboard device 10 includes a light-emitting module 110 , a bottom plate 120 and a key unit 130 .

The light-emitting module 110 is a side-emitting light-emitting module, which is mainly used to light up the light-emitting keyboard device 10 . The light emitting module 110 includes a light source 112 and a light guide plate 114 . The light source 112 has an optical axis I, and the optical axis I is the central axis of the light beam emitted by the light source 112 . The light source 112 can be a light emitting diode (light emitting diode, LED), a lamp tube or a light bulb, and the number can be one or more. In this embodiment, the light emitting module 110 includes one light source 112 as an example for illustration, and the light source 112 is preferably a light emitting diode.

The light guide plate 114 is a light-transmitting plate body for guiding the direction of light incident inside it. The light guide plate has a plurality of through holes 1140; in this embodiment, the light guide plate includes four through holes 1140 as an example for illustration, but it should be noted that the number is not a limitation to the present invention. The light source 112 is located on a light incident surface 1142 of the light guide plate 114 and emits light toward the light incident surface 1142 , as shown in FIG. 6 . The light guide plate 114 cooperates with the light source 112 to form a side-firing light emitting module.

The bottom plate 120 is located below the light emitting module 110 . The bottom plate 120 is preferably a metal plate, and preferably, the bottom plate 120 is a metal plate with a reflective effect, so as to reflect the light leaking out of the light emitting module 110 and reenter the light guide plate 114 . The bottom plate 120 is formed with a plurality of hook bodies 122 by stamping, and the number of the hook bodies 122 is the same as the number of the through holes 1140; in this embodiment, the bottom plate 120 includes four hook bodies 122 as an example for illustration . The hook bodies 122 are respectively accommodated in the through holes 1140 .

Each hook body 122 includes a stop portion 1220, the stop portion 1220 extends substantially parallel to the optical axis I of the light source 112, the stop portion 1220 is roughly rectangular, and the side with a larger area is abutting surface 1221 , a normal n of the abutting surface 1221 is substantially perpendicular to the optical axis I of the light source 112 .

Each hook body 122 further includes a flange portion 1222 disposed on the top edge of the stop portion 1220, and the extending direction of the flange portion 1222 is substantially perpendicular to the optical axis I of the light source 112. . In this embodiment, the flange portion 1222 is disposed on the top edge of the stop portion 1220 on a side closer to the central axis C, and each flange portion 1222 extends away from the central axis C, and The volume of each flange portion 1222 is smaller than the volume of each stopper portion 1220 .

The button unit 130 is located above the light emitting module 110 , and the button unit 130 includes a keycap 132 , a first bracket 134 and a second bracket 136 . The keycap 132 is roughly rectangular and includes a pressing surface 1320 and an assembly surface opposite to the pressing surface 1320. The pressing surface 1320 is used for pressing by the user's fingertips, and the pressing surface 1320 is provided with at least one character symbol 1321 for use. For the user to identify the keycap 132 . The keycap 132 can be made of a translucent material, or the keycap 132 is made of a translucent material at the position corresponding to the character symbol 1321, so that light can pass through the assembly surface of the keycap 132 It is transmitted to the pressing surface 1320 and illuminates the character symbol 1321 . A plurality of positioning slots 1323 are formed on the assembly surface. In this embodiment, four positioning slots 1323 are formed on the assembly surface as an example for illustration.

The first bracket 134 and the second bracket 136 intersect to form an X shape, and their intersections are pivotally connected together by a pivot 138 . One end of the first bracket 134 has a first connecting rod 1340, one end of the second bracket 136 has a second connecting rod 1360, and the first connecting rod 1340 and the second connecting rod 1360 are respectively coupled to the positioning card. Slot 1323. One end of the first bracket 134 has at least one first limiting rod 1342, and the other end of the second bracket 136 has at least one second limiting rod 1362; in this embodiment, the first bracket 134 includes two The first limiting rod 1342 and the second bracket include two second limiting rods 1362 as an example for illustration. Each of the first limiting rods 1342 and each of the second limiting rods 1362 are respectively disposed between the bottom plate 120 and each of the flange portions 1222, and abut against each of the abutting surfaces 1221; thus, the The keycap 132 can move up and down relative to the bottom plate 120 through the first bracket 134 and the second bracket 136 .

With reference to FIG. 6 and FIG. 7 , when the light source 112 is turned on, the light emitted by the light source 112 will enter the light guide plate 114 through the light incident surface 1142 , and be transmitted inside the light guide plate 114 to the button. Unit 130. Since the extending direction of the stopping portion 1220 is substantially parallel to the optical axis I of the light source 112, the probability of light being blocked by the abutting surface 1221 can be greatly reduced, and most of the light can be transmitted to A side of the light guide plate 114 away from the light source 112 is located.

Referring to FIG. 4 and FIG. 5 again, the light-emitting keyboard device 10 further includes a circuit board 140 , an elastic member 150 and a light-shielding plate 160 . The circuit board 140 is disposed above the light guide plate 114 to detect whether the keycap 132 is pressed down and trigger a press signal. The circuit board 140 can be a membrane circuit board (membrane circuit) or other circuit boards, and is provided with an opening 142 corresponding to the hook body 122 for receiving the hook body 122 therein. In this embodiment, the circuit board 140 includes four openings 142 as an example for illustration.

The elastic member 150 is located under the keycap 132 and serves as a source of elastic force for the keycap 132 to move up and down relative to the bottom plate 120 . The elastic member 150 can be an elastic washer or other elastic body, and can be directly formed on the circuit board 140 , or combined with the circuit board 140 through an adhesive member (not shown).

The light-shielding plate 160 is located on the circuit board 140 , and the light-shielding plate 160 is provided with a through hole 162 corresponding to the hook body 122 for receiving the hook body 122 therein. The visor 160 further defines a through hole 164 corresponding to the elastic member 150 , so that the elastic member 150 can touch the circuit board 140 through the through hole 164 to trigger a pressing signal. In this embodiment, the light-shielding plate 160 includes four through holes 162 as an example for illustration. The visor 160 can be made of opaque materials such as metal or plastic, so as to prevent the light from directly passing through the circuit board 140 and projecting to the keycap 132 to form disturbing light around the keycap 132, thereby affecting the user. The character symbol 1321 on the keycap 132 is recognized.

Based on the above, the extension direction of the stopper portion 1220 of the hook body 122 of the luminous keyboard device of the present invention is roughly parallel to the optical axis I of the light source 112. In this way, the original setting direction of the keys can be maintained. And greatly increase the light transmission efficiency.

Certainly, the utility model also can have other various embodiments, under the situation of not departing from the spirit and essence of the utility model, those skilled in the art can make various corresponding changes and distortions according to the utility model, but these Corresponding changes and deformations should all belong to the protection scope of the claims of the present invention.

Claims (9)

1. A luminous keyboard device, characterized in that, comprising: A light emitting module, including a light guide plate and at least one light source, the light guide plate includes a plurality of through holes, the light source has an optical axis and is arranged on a light incident surface of the light guide plate; A bottom plate is located under the light-emitting module and has a plurality of hook bodies, the hook bodies are correspondingly accommodated in the through holes, each of the hook bodies has a stopper portion and a flange portion, and the stopper body The extension direction of the baffle part is roughly parallel to the optical axis of the light source and includes a larger abutment surface, the normal line of the abutment surface is perpendicular to the optical axis, and the extension direction of the flange part is substantially perpendicular to the light of the light source. axis; and At least one key unit is located above the light-emitting module and includes a key cap and a first bracket and a second bracket intersecting. One end of the first bracket and the second bracket is coupled to the key cap, and the other end is located on the The base plate and the flange part are in contact with the contact surface. 2. The luminous keyboard device according to claim 1, wherein one end of the first bracket has at least one first limiting rod, one end of the second bracket has at least one second limiting rod, and the first The limiting rod and the second limiting rod are respectively located between the bottom plate and the flange portion and abut against the abutting surface. 3. The light-emitting keyboard device according to claim 1, further comprising a circuit board disposed on the light-emitting module, the circuit board is provided with an opening at a position corresponding to the hook body, and the hook body accommodated in this opening. 4 . The luminous keyboard device according to claim 3 , further comprising an elastic member located below the keycap, used as a source of elastic force for the keycap to move up and down relative to the bottom plate. 5 . 5. The light-emitting keyboard device according to claim 3, further comprising a light-shielding plate disposed on the circuit board, the light-shielding plate is provided with a perforation at a position corresponding to the hook body, and the hook body accommodates Placed in the through hole, the light shielding plate is provided with a through hole at a position corresponding to the elastic member, and the elastic member touches the circuit board through the through hole to trigger a pressing signal. 6 . The luminous keyboard device according to claim 1 , wherein the key unit further comprises a pivot pivotally connected to the intersection of the first bracket and the second bracket. 7 . 7. The luminous keyboard device according to claim 2, wherein an assembly surface of the keycap has a plurality of positioning slots, the other end of the first bracket has at least one first connecting rod, and the second bracket The other end has at least one second connecting rod, and the first connecting rod and the second connecting rod are coupled to the positioning slot. 8. The light-emitting keyboard device according to claim 1, wherein the light-emitting module is a side-firing light-emitting module. 9. The luminous keyboard device according to claim 1, wherein the light source is a light emitting diode.

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