CN219350059U

CN219350059U - Light guide mechanism and electrical equipment

Info

Publication number: CN219350059U
Application number: CN202320610310.XU
Authority: CN
Inventors: 陈连成; 刘书润
Original assignee: Shenzhen Yunding Information Technology Co Ltd
Current assignee: Shenzhen Yunding Information Technology Co Ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-07-14
Anticipated expiration: 2033-03-20

Abstract

The utility model discloses a light guide mechanism and electrical equipment, and relates to the technical field of electrical equipment. The light guide mechanism is used for guiding light to the keys and comprises a light guide plate and a positioning piece; the light guide plate is provided with a light emitting surface and a back surface which are opposite to each other, the light guide plate is also provided with a light incident surface positioned between the light emitting surface and the back surface, the key faces the light emitting surface, and light entering the light guide plate from the light incident surface can enable the light emitting surface to uniformly emit light so as to uniformly guide the light to the key; the locating piece is connected to the back face, and the light guide plate can be located and installed on the external structure through the locating piece. The utility model solves the technical problem of poor light emitting effect of the existing key.

Description

Light guide mechanism and electrical equipment

Technical Field

The utility model relates to the technical field of electric appliances, in particular to a light guide mechanism and electric equipment.

Background

At present, keys on electrical equipment such as an electric toothbrush and the like are generally made into a form capable of emitting light, the principle that the keys can emit light is that the keys receive light emitted by a light emitting element, the light emitting element usually emits light by small dots, and the light emitting effect of the keys is poor due to uneven light emitting.

Disclosure of Invention

In view of the above, the present utility model provides a light guide mechanism and an electrical apparatus for improving the technical problem of poor light emitting effect of the existing key.

In order to solve the technical problems, the first technical scheme adopted by the utility model is as follows:

a light guide mechanism for guiding light to a key, the light guide mechanism comprising:

the light guide plate is provided with a light emitting surface and a back surface which are opposite to each other, the light guide plate is also provided with a light incident surface positioned between the light emitting surface and the back surface, the key faces the light emitting surface, and light entering the light guide plate from the light incident surface can enable the light emitting surface to uniformly emit light so as to uniformly guide the light to the key;

and the positioning piece is connected to the back surface, and the light guide plate can be positioned and installed on an external structure through the positioning piece.

In some embodiments of the light guide mechanism, the light guide mechanism further includes a light shielding layer, the light shielding layer is connected to the light emitting surface, a plurality of through holes penetrating through the light shielding layer are formed in the light shielding layer, a plurality of through holes form a pattern, and the light shielding layer is used for enabling the light guide mechanism to guide light according to the shape of the pattern.

In some embodiments of the light guide mechanism, the light shielding layer and the light emitting surface are connected in such a way that the light shielding layer is attached to the light emitting surface.

In some embodiments of the light guide mechanism, the positioning member is a flexible sheet, the flexible sheet includes a main body and a positioning column, the main body is attached to the back surface, the positioning column is disposed on one side of the main body facing away from the back surface, and the positioning column is used for positioning a relative position of the main body and the external structure, so as to position a relative position of the light guide plate and the external structure.

In some embodiments of the light guide mechanism, the number of the positioning posts is plural, and each positioning post is uniformly distributed along the circumferential direction of the main body.

In some embodiments of the light guide mechanism, a protrusion is further disposed on a side of the main body facing away from the light guide plate, and the protrusion is used for corresponding to the switch on the external structure, so that the key can touch the switch through the protrusion under the pressing of external force.

In order to solve the technical problems, the second technical scheme adopted by the utility model is as follows:

an electrical device comprising the light guide mechanism described in the above embodiment, further comprising a key, a circuit board, and a light emitting element, the light guide mechanism being located between the key and the circuit board, the light emitting surface facing the key, and the back surface facing the circuit board; the light-emitting element is electrically connected with the circuit board and is used for emitting light rays towards the light incident surface.

In some embodiments of the electrical apparatus, the key is provided with a light hole, the light hole forms a pattern, and the light hole is used for making the light guided by the light guide mechanism emit light according to the pattern.

In some embodiments of the electrical apparatus, the light emitting element includes a light emitting body and a conductive wire, and the light emitting body is connected to the light incident surface and is electrically connected to the circuit board through the conductive wire; the luminous direction of the luminous body is perpendicular to the light incident surface and parallel to the luminous surface.

In some embodiments of the electrical apparatus, the electrical apparatus further includes a housing, an accommodating space is provided in the housing, the circuit board is accommodated in the accommodating space, an accommodating hole penetrating through a sidewall of the housing is provided on the housing at a position corresponding to the switch on the circuit board, the key is accommodated in the accommodating hole and connected to a hole wall of the accommodating hole, and the light guide mechanism and the light emitting element are both accommodated in the accommodating space.

The implementation of the embodiment of the utility model has at least the following beneficial effects:

the light guide mechanism is applied to electrical equipment, and can enable the light guide mechanism and the electrical equipment to have the technical effect of good key light-emitting effect, and particularly, the light guide mechanism comprises the light guide plate and the positioning piece, the positioning piece is arranged to be convenient for positioning and mounting the light guide plate on an external structure, and the light guide plate is arranged to uniformly guide out the light emitted into the light guide plate from the light-emitting surface by the light-entering surface, so that the keys can receive uniform light, and the technical problem of poor key light-emitting effect is solved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram showing the structural connection between a light guiding mechanism and a light emitting device in an embodiment;

FIG. 2 is a top view of a light guide mechanism and a light emitting device connected to each other in an embodiment;

FIG. 3 is a schematic diagram of an electrical device in one embodiment;

FIG. 4 is a cross-sectional view of section A-A of FIG. 3;

fig. 5 is an enlarged schematic view of the portion B in fig. 4.

Wherein: 1. a light guide mechanism; 11. a light guide plate; 111. a light emitting surface; 112. a back surface; 12. a positioning piece; 121. a main body; 122. positioning columns; 123. a protrusion; 13. a light shielding layer; 131. a through hole; 2. a key; 3. a circuit board; 31. a switch; 4. a housing; 41. an accommodating space; 42. an accommodating hole; 5. a light emitting element; 51. a light emitting body; 52. conductive wires.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many other different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 5, in an embodiment of the light guiding mechanism 1, the light guiding mechanism 1 is used for guiding light to the key 2, and the light guiding mechanism 1 includes a light guiding plate 11 and a positioning member 12. The light guide plate 11 is provided with a light emitting surface 111 and a back surface 112 which are opposite, the light guide plate 11 is also provided with a light incident surface positioned between the light emitting surface 111 and the back surface 112, the key 2 faces the light emitting surface 111, and light entering the light guide plate 11 from the light incident surface can enable the light emitting surface 111 to uniformly emit light so as to uniformly guide the light to the key 2; the positioning member 12 is connected to the back surface 112, and the light guide plate 11 can be positioned and mounted on an external structure by the positioning member 12.

In this embodiment, setting up setting element 12 can be convenient for fix a position light guide plate 11 and install to the external structure, and set up light guide plate 11 and can evenly derive from light emitting area 111 the light that is penetrated into light guide plate 11 by the income plain noodles to can make button 2 receive even light, and then improved the not good technical problem of current button 2 light-emitting effect.

The light guide plate 11 is an optical acrylic/PC plate, and then a light guide point is printed on the bottom surface of the optical acrylic plate by laser engraving, V-shaped cross grid electrology, and UV screen printing techniques using a high-tech material having an extremely high refractive index and not absorbing light. When the light is incident on each light guide point, the reflected light is diffused toward each angle, and then the reflected light is emitted from the front surface of the light guide plate 11 while damaging the reflection condition. The present embodiment can make the light uniformly emitted to the key 2 by using the light guide plate 11.

It is understood that the shape of the light guide plate 11 may be arbitrary, for example, the light guide plate 11 may be rectangular, circular, square, etc., and for convenience of description, the shape of the light guide plate 11 will be described as rectangular.

In an embodiment of the light guiding mechanism 1, the light guiding mechanism 1 further includes a light shielding layer 13, the light shielding layer 13 is connected to the light emitting surface 111, a plurality of through holes 131 penetrating through the light shielding layer 13 are formed on the light shielding layer 13, the plurality of through holes 131 form a pattern, and the light shielding layer 13 is used for guiding light of the light guiding mechanism 1 according to the shape of the pattern.

In this embodiment, the light-shielding layer 13 is provided to shield the light emitted from the light-emitting surface 111, so that the light can be emitted only from the position of the through hole 131 by forming the through hole 131 in the light-shielding layer 13, and thus, various shapes can be formed by designing the shape of the through hole 131, for example, the pattern can be designed into the form of logo, text mark, warning word, etc. of the manufacturer.

Specifically, the number of the through holes 131 may be one, the shape of the through holes 131 may be a circle, a square, a triangle, a ring, etc., the number of the through holes 131 may be a plurality, and the shapes of the plurality of through holes 131 may be the same or different, without limitation.

In one embodiment of the light guiding mechanism 1, the light shielding layer 13 is connected to the light emitting surface 111 in such a way that the light shielding layer 13 is attached to the light emitting surface 111.

In this embodiment, the light shielding layer 13 may be a light shielding pattern or a light shielding paper, and the light shielding pattern or the light shielding paper may be used to block the light-transmitting position by adhesion.

In an embodiment of the light guiding mechanism 1, the positioning member 12 is a flexible sheet, the flexible sheet includes a main body 121 and a positioning column 122, the main body 121 is attached to the back surface 112, the positioning column 122 is disposed on a side of the main body 121 facing away from the back surface 112, and the positioning column 122 is used for positioning a relative position between the main body 121 and an external structure, and further positioning a relative position between the light guiding plate 11 and the external structure.

In this embodiment, specifically, the flexible sheet may be made of a material having flexibility such as silica gel or rubber, and by providing the positioning posts 122, the whole light guide mechanism 1 can be positioned and installed.

Preferably, the shape of the flexible sheet is consistent with that of the light guide plate 11, and the flexible sheet is rectangular, and the peripheral side wall surfaces of the flexible member are flush with the side wall surfaces of the light guide plate 11.

In one embodiment of the light guiding mechanism 1, the number of the positioning columns 122 is plural, and each positioning column 122 is uniformly distributed along the circumferential direction of the main body 121. By providing a plurality of positioning posts 122, the stability of connection can be further improved. Specifically, the number of the positioning posts 122 may be four, and the four positioning posts 122 are located at four corners of the body 121, respectively.

In an embodiment of the light guiding mechanism 1, a protrusion 123 is further disposed on a side of the main body 121 facing away from the light guiding plate 11, and the protrusion 123 is used for corresponding to the switch 31 on the external structure, so that the key 2 can touch the switch 31 through the protrusion 123 under the pressing of an external force.

In some electrical apparatuses, the key 2 is used to control the opening and closing of the electrical apparatus, and most of the existing electrical apparatuses are opened and closed by the switch 31 on the circuit board 3, and the switch 31 is generally required to be opened and closed by a physical contact manner.

The distance between the protrusion 123 and the switch 31 may be set according to the stroke of the key 2, so that the protrusion 123 can be ensured to be in contact with the switch 31.

The utility model also relates to an electrical device comprising the light guide mechanism 1 in the above embodiment, the electrical device further comprising a key 2, a circuit board 3 and a light emitting element 5, the light guide mechanism 1 being located between the key 2 and the circuit board 3, the light emitting surface 111 facing the key 2 and the back surface 112 facing the circuit board 3; the light emitting element 5 is electrically connected to the circuit board 3, and the light emitting element 5 is configured to emit light toward the light incident surface.

By applying the light guide mechanism 1 in the above embodiment, the light emitted by the light emitting element 5 on the electrical equipment can be uniformly emitted to the key 2, so that the light emitting effect of the key 2 is good. Specifically, in the present embodiment, the light emitting element 5 is injected into the light guide plate 11 from the side and then injected from the light emitting surface 111, i.e., the front surface of the light guide plate 11, so that the placement freedom of the light emitting element 5 is higher, the correspondence with the key 2 is not required, and the arrangement on the circuit board 3 is not affected.

In an embodiment of the electrical device, the key 2 is provided with light holes, the light holes form a pattern, and the light holes are used for enabling the light guided by the light guiding mechanism 1 to emit light according to the pattern.

Specifically, the whole button 2 can be the structure that can the printing opacity to this can all export outside electrical equipment with the light that light guide mechanism 1 led to button 2 on, the light trap accessible sprays opaque material on button 2, and what left is the light trap, can spray out the light trap of different shapes on button 2 according to actual need, like LOGO. The key 2 may also be an opaque structural member, so that the formation of the light holes may form light holes by forming holes in the key 2 by laser.

In one embodiment of the electrical device, the light emitting element 5 includes a light emitting body 51 and a conductive wire 52, where the light emitting body 51 is connected to the light incident surface and is electrically connected to the circuit board 3 through the conductive wire 52.

In this embodiment, by connecting the light emitting body 51 and the light guide plate 11, both can form a whole, and the position correspondence between the light emitting body 51 and the light guide plate 11 can be prevented from being affected by shaking, vibration, etc., so that more stable uniform light emission can be achieved.

In one electrical device embodiment, the light emitting direction of the light emitting body 51 is perpendicular to the light incident surface and parallel to the light emitting surface 111. In connection with the previous embodiment, the light guide plate 11 is rectangular in shape because the light incident surface and the light emitting surface 111 are perpendicular, by setting the light emitting direction of the light emitting body 51 to be perpendicular to the light incident surface, it is possible to easily set the connection of the light emitting body 51 and the light incident surface.

In an embodiment of the electrical apparatus, the electrical apparatus further includes a housing 4, a housing space 41 is provided in the housing 4, the circuit board 3 is housed in the housing space 41, a housing hole 42 penetrating through a sidewall of the housing 4 is provided on the housing 4 at a position corresponding to the switch 31 on the circuit board 3, the key 2 is housed in the housing hole 42 and connected to a wall of the housing hole 42, and the light guiding mechanism 1 and the light emitting element 5 are both housed in the housing space 41.

In combination with the previous embodiment, the light guiding mechanism 1 is positioned and connected with the circuit board 3 by the positioning posts 122 on the flexible member, and for this purpose, corresponding structures, such as holes, slots, etc., can be provided on the circuit board 3. By arranging the light guide mechanism 1 in the accommodating space 41 and accommodating the key 2 in the accommodating hole 42, the cover 4 is not bulked and protruded, and the integrity and the aesthetic property of the side wall of the cover 4 are improved.

Preferably, the key 2 is abutted against the light guide mechanism 1, and cooperates with the flexible member to elastically clamp the light guide plate 11. The key 2 is also made of elastic materials, and the light guide plate 11 is clamped by matching with the flexible piece elastically, so that the switch 31 is triggered more easily and is not easy to fail when the key 2 is pressed.

In addition, the electrical equipment can be an electrical appliance such as an electric toothbrush and the like with the keys 2, and the technical effect of good light emitting effect of the keys 2 can be achieved by applying the light guide mechanism 1.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The utility model provides a light guide mechanism, its characterized in that, light guide mechanism is used for leading light to the button, light guide mechanism includes:

2. The light guide mechanism of claim 1, further comprising a light shielding layer, wherein the light shielding layer is connected to the light emitting surface, a plurality of through holes penetrating the light shielding layer are formed in the light shielding layer, a plurality of through holes form a pattern, and the light shielding layer is used for enabling the light guide mechanism to guide light according to the shape of the pattern.

3. The light guide mechanism of claim 2, wherein the light shielding layer is attached to the light emitting surface in a manner that the light shielding layer is attached to the light emitting surface.

4. The light guide mechanism of claim 1, wherein the positioning member is a flexible sheet, the flexible sheet includes a main body and a positioning post, the main body is attached to the back surface, the positioning post is disposed on a side of the main body facing away from the back surface, and the positioning post is used for positioning a relative position of the main body and the external structure, and further positioning a relative position of the light guide plate and the external structure.

5. The light guide mechanism of claim 4, wherein the number of positioning posts is plural, and each positioning post is uniformly distributed along the circumferential direction of the main body.

6. The light guide mechanism of claim 4 or 5, wherein a protrusion is further provided on a side of the main body facing away from the light guide plate, the protrusion being configured to correspond to a switch on the external structure, so that the key can touch the switch through the protrusion when pressed by an external force.

7. An electrical device comprising the light guide mechanism of any one of claims 1-6, further comprising a key, a circuit board, and a light emitting element, the light guide mechanism being located between the key and the circuit board, the light emitting face facing the key, and the back face facing the circuit board; the light-emitting element is electrically connected with the circuit board and is used for emitting light rays towards the light incident surface.

8. The electrical device of claim 7, wherein the key is provided with light holes, the light holes form a pattern, and the light holes are used for enabling light guided by the light guide mechanism to emit light according to the pattern.

9. The electrical apparatus of claim 7, wherein the light emitting element comprises a light emitting body and a conductive wire, the light emitting body is connected to the light incident surface and is electrically connected to the circuit board through the conductive wire; the luminous direction of the luminous body is perpendicular to the light incident surface and parallel to the luminous surface.

10. The electrical equipment according to any one of claims 7 to 9, further comprising a housing, wherein an accommodating space is provided in the housing, the circuit board is accommodated in the accommodating space, an accommodating hole penetrating through a side wall of the housing is formed in the housing at a position corresponding to a switch on the circuit board, the key is accommodated in the accommodating hole and is connected to a hole wall of the accommodating hole, and the light guide mechanism and the light emitting element are accommodated in the accommodating space.