CN113904183A

CN113904183A - Key light-emitting structure of plug

Info

Publication number: CN113904183A
Application number: CN202111168311.5A
Authority: CN
Inventors: 陈恒; 陈彬; 朱坤伦; 严华
Original assignee: Jiangsu General Protecht Co Ltd
Current assignee: Jiangsu General Protecht Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-01-07

Abstract

The invention provides a key light-emitting structure of a plug, wherein the plug is provided with keys, a PCB (printed circuit board) is arranged in the plug, one end of each key is provided with a head part, a body part extends from the head part to the vertical direction of the PCB, and a circle of light guide ring is arranged around the body part of each key; the LEDs are arranged and emit light towards the light guide ring; the plug is characterized by further comprising a silica gel sleeve made of transparent or semitransparent materials, the silica gel sleeve is provided with a main sleeve body wrapping the head of the key from outside to inside, and the part of the main sleeve body located inside the plug can receive light guided out by the light guide ring. When the silica gel ring is used, the part of the silica gel sleeve surrounding the head of the key emits light to form an aperture, and the inside of the aperture has a slightly bright visual effect due to the light guide of the silica gel, so that the attractive appearance is improved, and the identification degree of the key can be improved.

Description

Key light-emitting structure of plug

Technical Field

The invention relates to a key light-emitting structure of a plug.

Background

Along with the improvement of living standard of people, the low-voltage electrical appliance product that has the current demand changes to the demand that the outward appearance aesthetic property, installation convenience, human-computer interaction and product reliability have subversive, the current problem that the button discernment degree is on the low side generally exists in market earth leakage protection plug.

Disclosure of Invention

In view of the above problems, the present invention provides a key light emitting structure of a plug to improve the key recognition degree.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a button light-emitting structure of plug, the plug is equipped with the button the inside of plug is equipped with the PCB board, button one end has the head, by the head to the vertical direction of PCB board extends there is body portion, its characterized in that:

a circle of light guide ring is arranged around the body of the key;

the LEDs are arranged and emit light towards the light guide ring;

the plug is characterized by further comprising a silica gel sleeve made of transparent or semitransparent materials, the silica gel sleeve is provided with a main sleeve body wrapping the head of the key from outside to inside, and the part of the main sleeve body located inside the plug can receive light guided out by the light guide ring.

The key light-emitting structure of plug, wherein: and a shading support is arranged on the outer ring of the light guide ring, and the LEDs are arranged between the shading support and the light guide ring.

The key light-emitting structure of plug, wherein: the shading support is provided with grooves corresponding to the LEDs, and the grooves can accommodate the LEDs.

The key light-emitting structure of plug, wherein: the surface of the shading support close to the LED is a reflecting surface.

The key light-emitting structure of plug, wherein: the position of the light guide ring corresponding to the LED is surrounded by the LED on three sides on a plane parallel to the PCB, a bulge is arranged on the light guide ring corresponding to each LED, each bulge correspondingly extends into the groove of the shading support and surrounds the fourth side of the LED, and the LED only emits light towards the direction of the fourth side.

The key light-emitting structure of plug, wherein: the silica gel cover is including being located the center the main cover body and an organic whole connect in the holding ring at main cover body opening edge, the holding ring presss from both sides to establish to be fixed the shading support with between the casing of plug.

The key light-emitting structure of plug, wherein: the LED is electrically connected with the PCB and forms linkage control with the key.

The key light-emitting structure of plug, wherein: the head is circular, oval, pentagonal or polygonal.

The key light-emitting structure of plug, wherein: the head is made of opaque material.

The key light-emitting structure of plug, wherein: the head part is provided with a light-permeable hollow structure so as to form a pattern by a light-permeable part or a light-impermeable part.

By using the structure of the invention, when the leakage protection plug is observed from the outside, the part of the silica gel sleeve surrounding the head of the key can be seen to emit light to form an aperture, and the inside of the aperture has a slightly bright visual effect due to the light guide of the silica gel, thereby improving the appearance and the recognition degree of the key.

Drawings

Fig. 1 is a cross-sectional view of a key light-emitting structure of a plug provided by the present invention.

Fig. 2 is a top view of a key light-emitting structure of the plug provided by the invention.

Fig. 3 is a partially enlarged schematic view of fig. 1.

Fig. 4 is a transverse cross-sectional view of a partial location of fig. 1.

Description of reference numerals: an upper cover 1; a lower cover 2; a test key 3; a PCB board 4; a head portion 5; a body portion 6; an LED 7; a light-shielding support 8; a groove 9; a light guide ring 10; a protrusion 11; a main sleeve body 12; a positioning ring 13; a relief structure 14; and an aperture 15.

Detailed Description

As shown in fig. 1 and fig. 2, the present invention provides a key light emitting structure of a plug (taking a leakage protection plug as an example), which includes a housing composed of an upper cover 1 and a lower cover 2, wherein a start key and a test key 3 are arranged on an upper side of the upper cover 1, a PCB 4 horizontally arranged is fixed in a cavity formed by combining the upper cover 1 and the lower cover 2, the start key includes a head portion 5 located at a top portion (the head portion 5 is made of an opaque material) and a body portion 6 extending downward from the head portion 5, the body portion 6 vertically penetrates through the PCB 4, wherein:

as shown in fig. 3 and 4, two sides of the body 6 of the PCB 4 opposite to the activation key are respectively provided with an LED7, a light shielding bracket 8 is disposed on the PCB 4 around the body 6 of the activation key, and the light shielding bracket 8 is disposed with a groove 9 corresponding to each LED7 for accommodating the LED 7; in a preferred embodiment, the surface of the light shielding support 8 close to the LED7 is a light reflecting surface;

as shown in fig. 3 and 4, a circle of light guiding ring 10 is arranged inside the light shielding bracket 8, the light guiding ring 10 surrounds the LED7 in three horizontal directions corresponding to the position of the LED7, and two protrusions 11 are arranged on the light guiding ring 10, each protrusion 11 correspondingly extends into the upper part of the groove 9 of the light shielding bracket 8, and is used for guiding the light emitted upwards by the LED7 inwards (in this embodiment, the light emitting direction of the LED7 is only upward light emitting);

a silica gel sleeve (preferably made of a semitransparent material) with a cross-section shaped like a Chinese character ji is arranged above the shading support 8 and the light guide ring 10, the silica gel sleeve comprises a main sleeve body 12 positioned at the center and a positioning ring 13 integrally connected to the edge of the opening of the main sleeve body 12, the main sleeve body 12 covers the head 5 of the start key and extends downwards, and a concave-convex structure 14 is arranged on the positioning ring 13 and is clamped and fixed between the upper cover 1 and the shading support 8 by the concave-convex structure 14;

when the starting key is pressed to enable the leakage protection plug to be in a starting state, the LED7 starts to emit light, one part of the emitted light directly irradiates the light guide ring 10, the other part of the light is reflected by the shading support 8 to enter the light guide ring 10 and is guided by the light guide ring 10 to irradiate the silica gel sleeve, and only the silica gel sleeve on the peripheral part of the head part 5 can transmit light due to the shading of the head part 5 of the starting key; when the LED lamp is observed from the upper part of the upper shell, the part of the head part 5 of the starting key, which is surrounded by the silica gel sleeve, can be seen to emit light to form the aperture 15, the aperture 15 is preferably circular or elliptical, the inside of the aperture 15 has a slightly bright visual effect due to the light guide of the silica gel, the appearance is improved, and the identification degree of the starting key can be improved.

Of course, the head 5 may be designed into other shapes, such as a pentagram shape and a polygon shape, for further aesthetic effect, and a hollow structure for light to pass through may be formed on the head 5, so as to form various patterns, such as dots, lines, even trademarks of commodities, and the like, from the light-transmitting portion or the light-non-transmitting portion in the aperture 15.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a button light-emitting structure of plug, the plug is equipped with the button the inside of plug is equipped with the PCB board, button one end has the head, by the head to the vertical direction of PCB board extends there is body portion, its characterized in that:

a circle of light guide ring is arranged around the body of the key;

the LEDs are arranged and emit light towards the light guide ring;

2. The key illumination structure of the plug of claim 1, wherein: and a shading support is arranged on the outer ring of the light guide ring, and the LEDs are arranged between the shading support and the light guide ring.

3. The key illumination structure of the plug of claim 2, wherein: the shading support is provided with grooves corresponding to the LEDs, and the grooves can accommodate the LEDs.

4. The key illumination structure of the plug of claim 3, wherein: the surface of the shading support close to the LED is a reflecting surface.

5. The key illumination structure of the plug of claim 3, wherein: the position of the light guide ring corresponding to the LED is surrounded by the LED on three sides on a plane parallel to the PCB, a bulge is arranged on the light guide ring corresponding to each LED, each bulge correspondingly extends into the groove of the shading support and surrounds the fourth side of the LED, and the LED only emits light towards the direction of the fourth side.

6. The key illumination structure of the plug of claim 2, wherein: the silica gel cover is including being located the center the main cover body and an organic whole connect in the holding ring at main cover body opening edge, the holding ring presss from both sides to establish to be fixed the shading support with between the casing of plug.

7. The key illumination structure of the plug of claim 1, wherein: the LED is electrically connected with the PCB and forms linkage control with the key.

8. The key illumination structure of the plug of claim 1, wherein: the head is circular, oval, pentagonal or polygonal.

9. The key illumination structure of the plug of claim 1, wherein: the head is made of opaque material.

10. The key illumination structure of the plug according to claim 1 or 9, wherein: the head part is provided with a light-permeable hollow structure so as to form a pattern by a light-permeable part or a light-impermeable part.