CN220420482U - Single live wire switch - Google Patents

Abstract

The utility model discloses a single live wire switch. In the present utility model, the single live wire switch includes: the control panel is provided with a circuit board and a key unit electrically connected with the circuit board; a key sheet which covers one side of the circuit board and the key unit and is operable to press the key unit by the key sheet; the key sheet includes: the key sheet is provided with a light-transmitting indication area; the light source comprises at least one lamp body, and the lamp body is electrically connected with the circuit board; at least one lamp body is always on after the single live wire switch is used; and the light-transmitting and light-homogenizing piece is adjacent to one side of the key sheet, facing the key unit, and covers the light-transmitting indication area. Compared with the prior art, the backlight light source can be always bright, and the brightness displayed on the transparent panel is enough or uniform.

Description

Single live wire switch

This patent application claims priority from the following chinese patent applications:

day of submission: 2023, 06, 08; application number: 202321461645.6; the utility model name is as follows: a single fire wire switch panel;

the entire contents of the above-mentioned application are incorporated herein by reference.

Technical Field

The utility model relates to intelligent home control, in particular to a single-live wire switch.

Background

The control panel of the existing intelligent home system mainly comprises a traditional switch panel, an intelligent scene panel and a control panel matched with the intelligent scene panel for controlling certain intelligent products.

In the conventional control panel, the control is performed by pressing a mechanical key or a touch key on the panel, and the LED lamp beads are used as backlight sources of the keys. The utility model provides an intelligent switch panel of chinese patent publication of application number 202010663019.X, including the panel, the leaded light ring, the PCB board, back lid and control box, a plurality of ring channels have been seted up on the base plate of panel, the tip and the base plate body coupling of panel of disk that enclose in the middle of the ring channel, and regard the disk as intelligent switch panel's button, every button below all corresponds and is connected with a paster switch, a plurality of paster switches are all fixed on the PCB board, all be provided with the LED lamp area that the round was constituteed by a plurality of LED luminous monomers around every paster switch, every button below all corresponds and is provided with a leaded light ring.

However, the light-transmitting area on the panel gives the key indication by requiring the LED light-emitting unit to remain always bright and uniform in brightness, so that the user can intuitively know the functional purpose of the pressed area key. However, in the current single-live wire switch product, the backlight light source cannot be kept normally on due to the small current provided by the single live wire. In addition, when the area to be indicated has a plurality of characters or marks, the key function needs to be accurately and intuitively seen with uniform brightness, but the display effect of the conventional switch panel cannot be that the plurality of characters or marks are always bright or have uniform brightness.

Disclosure of Invention

The utility model aims to provide a single live wire switch, so that a backlight light source can be always bright, and the brightness displayed on a transparent panel is enough or uniform.

In order to solve the above technical problems, an embodiment of the present utility model provides a single live wire switch, including:

the control board is provided with a circuit board and a key unit electrically connected with the circuit board;

a key sheet which covers one side of the circuit board and the key unit and is operable to press the key unit through the key sheet; the key sheet includes: the key sheet is provided with a light-transmitting indication area;

the light source is provided with at least one lamp body, and the lamp body is electrically connected with the circuit board; and

the light transmission and light homogenization piece is adjacent to one side, facing the key unit, of the key sheet, and covers the light transmission indication area; at least one lamp body is always on after the single live wire switch is used, and light rays of at least one lamp body are emitted into the light transmission light homogenizing part and penetrate through the light transmission indication area.

Compared with the prior art, the light source is provided with at least one lamp body, so that the at least one lamp body is always on, the key unit is arranged on the back surface of the light transmission light homogenizing piece, the light transmission light homogenizing piece covers the light transmission indication area, the light on which the lamp body is always on is displayed from the light transmission indication area through the light transmission light homogenizing piece, the light transmission light homogenizing piece enables the light brightness to be even, and therefore the effect displayed from the light transmission indication area is always on and even, and the function of the key unit corresponding to the light transmission indication area is well indicated.

In an embodiment, the light-transmitting and light-homogenizing element has a first surface facing the key sheet, a second surface opposite to the first surface, and a side surface surrounding the first surface and the second surface, and the light of the lamp body is emitted into the light-transmitting and light-homogenizing element from the side surface of the light-transmitting and light-homogenizing element.

In an embodiment, the light body is disposed on a side surface of the light-transmitting and light-homogenizing member, and a light-emitting side of the light body faces the side surface of the light-transmitting and light-homogenizing member.

In an embodiment, the lamp body is at least partially embedded in the light-transmitting dodging member, and the first surface of the light-transmitting dodging member covers the light-emitting surface of the lamp body.

In an embodiment, the light-transmitting light-homogenizing element is provided with a light-entering plate and a light-homogenizing sheet covering one side of the light-entering plate facing the key sheet.

In an embodiment, a notch for embedding at least part of the light body is formed in a side surface of the light incident plate, and the light homogenizing sheet covers one side of the light body, which faces the key sheet.

In an embodiment, the key board further includes a key support, and the light-transmitting light-homogenizing element and the lamp body are disposed in the key support; the key sheet covers one side of the key support, which is away from the circuit board.

In an embodiment, a mounting area is arranged on one side of the key support, facing the key sheet, and the lamp body and the light-transmitting dodging piece are embedded in the mounting area.

In an embodiment, the mounting area is a mounting groove opened towards the key sheet, and the light-transmitting dodging piece is fixed in the mounting groove; and the bottom of the mounting groove is provided with a wiring hole.

In one embodiment, the control board is further provided with a mounting frame for mounting the circuit board, and the key board is hinged with the mounting frame; the mounting frame is provided with a hollowed-out area, and the key unit is positioned in the hollowed-out area;

the light source, the light transmission light homogenizing piece, the key unit and the light transmission indication area are all provided with a plurality of light transmission light homogenizing pieces;

the light source, the light transmission light homogenizing piece, the key unit and the light transmission indication area are arranged in a one-to-one correspondence manner; each light-transmitting and light-homogenizing piece covers the corresponding key unit.

In one embodiment, the key board is hinged with the control board; the key sheet is provided with a plurality of keys; one of the key sheets is provided with a plurality of light-transmitting indication areas.

In one embodiment, the light source comprises a lamp body; the lamp body is located the printing opacity dodging piece is kept away from the side at single live wire switch edge.

In one embodiment, the lamp body is provided with LED lamp beads; or the lamp body is provided with a cold light plate.

In an embodiment, the lamp body has LED lamp beads, the light source includes less than or equal to three LED lamp beads, and the LED lamp beads are electrically connected with the circuit board.

In one embodiment, the light source has a plurality of light bodies, and at least one of the light bodies is normally on after use of the single fire wire switch.

The embodiment of the utility model also provides a single live wire switch, which comprises:

the control board is provided with a circuit board and a key unit electrically connected with the circuit board;

a key sheet which covers one side of the circuit board and the key unit and is operable to press the key unit through the key sheet; the key sheet includes: the key sheet is provided with a light-transmitting indication area;

the light source is provided with a plurality of lamp bodies, and the lamp bodies are electrically connected with the circuit board; and

the light transmission and light homogenization piece is adjacent to one side, facing the key unit, of the key sheet, and covers the light transmission indication area; the control panel is operable to control at least one of the light bodies to be normally on and is operable to control at least one of the light bodies to be off; and the light rays of the normally-bright lamp body are emitted into the light-transmitting light-homogenizing part and penetrate through the light-transmitting indication area.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

FIG. 1 is a schematic diagram of a single fire wire switch in accordance with one embodiment of the utility model;

FIG. 2 is an exploded view of a single fire wire switch in accordance with one embodiment of the present utility model;

FIG. 3 is an internal block diagram of a single fire wire switch in accordance with an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a key holder according to an embodiment of the present utility model;

FIG. 5 is a schematic view of an LED bead of a light source according to an embodiment of the present utility model mounted in a light transmissive light homogenizing member;

FIG. 6 is a schematic view of a side of a light transmissive light homogenizing member facing away from a circuit board when a light source and the light transmissive light homogenizing member are mounted together in accordance with an embodiment of the present utility model;

wherein, 100, single live wire switch; 1. a control board; 11. a circuit board; 12. a key unit; 13. a mounting frame; 130. hollow areas; 14. a mounting plate; 140. a hole; 2. a key sheet; 21. a key sheet; 22. a key support; 220. an installation area; 221. a wiring hole; 20. a light-transmitting indication area; 3. a light source; 31. LED lamp beads; 311. a light-emitting side; 32. an LED substrate; 4. a light transmission and uniform light piece; 41. a first surface; 42. a second surface; 43. a side surface; 44. a light entering plate; 45. a light homogenizing sheet; 40. notch.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following detailed description of the embodiments of the present utility model will be given with reference to the accompanying drawings. However, those of ordinary skill in the art will understand that in various embodiments of the present utility model, numerous technical details have been set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.

In the following description, for the purposes of explanation of various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that an embodiment may be practiced without one or more of the specific details. In other instances, well-known devices, structures, and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Throughout the specification and claims, unless the context requires otherwise, the word "comprise" and variations such as "comprises" and "comprising" will be understood to be open-ended, meaning of inclusion, i.e. to be interpreted to mean "including, but not limited to.

The following detailed description of various embodiments of the present utility model will be provided in connection with the accompanying drawings to provide a clearer understanding of the objects, features and advantages of the present utility model. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the utility model, but rather are merely illustrative of the true spirit of the utility model.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.

In the following description, for the purposes of clarity of presentation of the structure and manner of operation of the present utility model, the description will be made with the aid of directional terms, but such terms as "forward," "rearward," "left," "right," "outward," "inner," "outward," "inward," "upper," "lower," etc. are to be construed as convenience, and are not to be limiting.

Embodiments of the present utility model are described below with reference to the accompanying drawings.

A first embodiment of the utility model relates to a single fire wire switch 100. As shown in fig. 1, 2, and 3, the single-live switch 100 includes: control panel 1, keypad 2, light source 3 and printing opacity light homogenizing piece 4. The keypad 2 is arranged in front of the control board 1, i.e. the keypad 2 faces the user. The control board 1 is provided with a circuit board 11 and a key unit 12 electrically connected with the circuit board 11, the key board 2 covers the circuit board 11 and the key unit 12, and a user can control the corresponding household equipment to switch between two different states, such as normal opening and closing, by touching the key unit 12 through the key board 2.

As shown in fig. 1, 2, and 3, the key sheet 2 includes: the key sheet 21, the key sheet 21 has the light-transmitting indication area 20. The light-transmitting dodging member 4 is adjacent to a side of the key sheet 21 facing the key unit 12, and the light-transmitting dodging member 4 covers the light-transmitting indication area 20, the light-transmitting dodging member 4 having a first surface 41 facing the key sheet 21, a second surface 42 opposite to the first surface 41, and a side surface 43 surrounding the first surface 41 and the second surface 42. As shown in fig. 5, the light source 3 is disposed on a side surface 43 of the light-transmitting and light-homogenizing member 4, the light source 3 includes an LED lamp bead 31, and the LED lamp bead 31 is electrically connected with the circuit board 11, the LED lamp bead 31 is disposed on the side surface 43 of the light-transmitting and light-homogenizing member 4, the light-emitting side of the LED lamp bead 31 faces the side surface 43 of the light-transmitting and light-homogenizing member 4, and the light of the light-emitting side 311 of the LED lamp bead 31 is emitted into the light-transmitting and light-homogenizing member 4 from the side surface 43 of the light-transmitting and light-homogenizing member 4, wherein the light-emitting side 311 of the LED lamp bead 31 is a surface for generating light spots. It will be appreciated that in other embodiments, the light source 3 may comprise three or 2 LED beads 31. The smaller number of LED beads 31 can adapt to the current of the single live wire to ensure normal backlight display, and meanwhile, the light source 3 and the current are adapted to ensure that the light-transmitting indication area 20 maintains a normally-on state with enough brightness, namely, the LED beads are always in a bright state after the single live wire switch is connected to a power supply for use. The light transmissive indicator zone 20 may be a light transmissive font such as "living room", "bedroom", or "kitchen", etc. A transparent indication area 20 is provided with a plurality of fonts which are separated, the indication content can be visually seen through the normal-brightness state of the transparent light homogenizing part 4 and the LED lamp beads 31, meanwhile, the brightness displayed by each font is almost consistent or consistent, a user has better use experience sense, and guessing is not needed due to the unclear partial fonts.

In this embodiment, one light source includes an LED lamp bead, which is normally on when the single live wire switch is powered on, while in other embodiments, one light source includes a plurality of lamp bodies, the lamp bodies are not limited to the LED lamp beads, the control board 1 is operable to control at least one lamp body to be normally on, and is operable to control at least one lamp body to be off, and the light of the normally on lamp body is incident into the light-transmitting dodging member 4 and transmitted through the light-transmitting indication area 20.

Specifically, in this embodiment, the contextual light source 3 includes a light body, such as an LED light bead, and in other embodiments, the contextual light source 3 may include a luminescent plate, which emits light after being energized by a sheet. One light source 3 comprises at least one lamp body, which may also be other lamp beads. When one light source 2 comprises a plurality of light bodies, all the light bodies in one light source 3 can be always on when a single live wire switch is used, and can also be partially on, for example, 4 light bodies in one light source 3 are taken as an example, at the moment, one or two of the light bodies can be controlled to be on through a control board, the rest of the light bodies are not on, and when one of the light bodies on the other light bodies is bad, the rest of the light bodies are controlled to be on partially or completely on through the control board. The number of lamp bodies in one of the light sources 3 is not limited to 4, but may be other number. For example, in some single-live wire switches, 4 light bodies are arranged in one light source 3, one or two of the light bodies are controlled to be normally on by the control panel (the light bodies are always in a bright state after the single-live wire switch is connected to a power supply for use), the rest of the light bodies are not on, and the brightness of the light bodies which are not on can also be started in a key board area corresponding to a key unit when a user touches or presses the key unit. That is, in each different example, when at least one of the light sources 3 is required to be normally on during use, the rest of the light sources can be set according to actual situations, and the light sources which are not normally on can be turned on and off under the control of other keys.

As shown in fig. 1 and 2, there are two key sheets 21, one key sheet 21 has four light-transmitting indication areas 20, and one light-transmitting indication area 20 corresponds to one light-transmitting light-homogenizing member 4, one light source 3 and one key unit 12. It can be understood that in other embodiments, only one light-transmitting indication area 20 or 2 light-transmitting indication areas 20 and other different numbers of light-transmitting indication areas 20 may be provided on one key sheet 21, and the light of the led lamp beads 31 is incident into the light-transmitting light-homogenizing member 4, so that the light emitted from the light-transmitting light-homogenizing member 4 is uniform, and the light with uniform brightness is displayed in the corresponding light-transmitting indication areas 20. That is, the light source 3, the transparent light homogenizing member 4, the key unit 12 and the transparent indication area 20 are all provided in plurality, the light source 3, the transparent light homogenizing member 4, the key unit 12 and the transparent indication area 20 are arranged in a one-to-one correspondence, and each transparent light homogenizing member 4 covers the corresponding key unit 12. Specifically, the four light-transmitting indication areas 20 are located at four corners of the key sheet 21, and the light-transmitting light-homogenizing member 4 is mounted behind the corresponding light-transmitting indication areas 20, for example, the corresponding LED lamp beads 31 on the light-transmitting light-homogenizing member 4 on the left side in the figure are disposed on the right side 43 of the light-transmitting light-homogenizing member 4, and the corresponding LED lamp beads 31 on the light-transmitting light-homogenizing member 4 on the right side are disposed on the left side 43 of the light-transmitting light-homogenizing member 4. That is, in order to avoid the light channeling, the LED beads 31 of the light sources 3 corresponding to the key units 12 at both ends of the same key sheet 21 may be disposed at the sides of the LED substrates 32 away from each other.

In the embodiment, the LED beads 31 are located on the side surface 43 of the light-transmitting and light-homogenizing member 4, and in other embodiments, the LED beads 31 may be located at other positions, for example, on the control board 1, and the LED beads 31 are refracted into the light-transmitting and light-homogenizing member 4 by other light-converting sheets and the like. In addition, in fig. 5, one light-transmitting light-homogenizing member 4 corresponds to one light source 3, only one LED lamp bead 31 is provided in one light source 3, and the LED lamp bead 31 is always electrified to be in a normally-on state when the single-live wire switch is used, but when 2 or 3 LED lamp beads 31 are provided in one light source 3, the LED lamp beads 31 may be located on the same side 43 of the light-transmitting light-homogenizing member 4, or may be located on different sides 43 of the light-transmitting light-homogenizing member 4, for example, when 2 LED lamp beads 31 are provided in one light source 3, one LED lamp bead 31 is provided on one side 43 of two opposite sides 43 of the light-transmitting light-homogenizing member 4.

Preferably, one light source 3 includes less than or equal to three LED beads 31. Because the light source 3 includes less than or equal to three LED beads 31, one key unit 12 corresponds to one light source 3, and a small number of LED beads 31 are in the single live wire switch 100, the LED beads 31 can have enough brightness to pass through the light-transmitting light-homogenizing member 4, and the light-transmitting indication area 20 covered on the key sheet 21 on the first surface 41 of the light-transmitting light-homogenizing member 4 can have enough brightness to be transmitted, so that a user can intuitively see the mark of the light-transmitting indication area 20, and the function of the key unit 12 corresponding to the light-transmitting indication area 20 is correspondingly identified. Meanwhile, the LED lamp beads 31 are enabled to be shot into the light-transmitting and light-homogenizing member 4 from the side face 43 of the light-transmitting and light-homogenizing member 4, and the brightness of the LED lamp beads 31 is uniformly displayed through the light-transmitting and light-homogenizing member 4, so that the phenomenon of obvious bright spots on the light-transmitting and light-homogenizing member 4 or uneven display of partial area brightness and low brightness in most area is avoided. So that the light-transmitting indication area 20 covered on the light-transmitting dodging member 4 has enough brightness and uniform brightness, and does not have the phenomenon of darkness or local brightness.

In some embodiments, the number of the LED beads 31 in one light source 3 may not be limited to three, but may be greater than three, such as four or five, etc. According to the practical situation, when the single live wire switch is connected to a power supply for use, all the LED lamp beads 31 in one light source 3 are always on, and can also be partially always on. Further, the control board 1 also has a mounting frame 13 to which the circuit board 11 is mounted, and the key sheet 2 is hinge-connected to the mounting frame 13. The mounting frame 13 has a hollow area 130, and the key unit 12 is located in the hollow area 130.

In addition, as shown in fig. 2, the key board 2 further includes a key support 22, the light-transmitting light-homogenizing element 4 and the LED lamp are disposed in the key support 22, the key sheet 21 covers a side of the key support 22 facing away from the circuit board 11, and the key sheet 21 may be adhered to the key support 22. As shown in the figure, there may be two key holders 22, and one key sheet 21 is attached to each key holder 22. The key sheet 21 may be in a strip shape, and combined with the key support 22, may rotate relative to the mounting frame 13, the rotation shaft extends along the width direction of the key sheet 21, and the key unit 12 is a protruding key at least arranged at positions corresponding to two ends of the key sheet 21 in the length direction. The circuit board 11 is arranged on the back of the mounting plate 14, the key unit 12 is arranged on the front of the mounting plate 14, pins of the key unit 12 penetrate through the mounting plate 14 to be electrically connected with the circuit board 11, holes 140 are formed in the mounting plate 14, the LED lamp beads 31 are electrically connected to the circuit board through the holes 140, and the holes 140 and the key unit 12 are located in the hollowed-out areas 130. The key sheet 21 according to the present embodiment is rectangular, but may have other shapes in other embodiments, and the number of key holders 22 and key sheets 21 is not limited thereto, and may be 1 or more than 2.

In this embodiment, as shown in fig. 2, the key sheet 2 is hinged to the hinge portion 131 in the middle region of the mounting frame 13, so that the corresponding key unit 12 can be activated by pressing the corner end region of the key sheet 2. In other embodiments, the key unit 12 may be triggered by other forms, for example, one key support 22 corresponds to one key unit 12, and the key support 22 and the mounting support may be connected by a spring to implement pressing the key board 2, so that the key unit 12 may be triggered. The flexibility or the flickability of the pressed area of the key sheet 2 may be such that the key units 12 are pressed, and the key sheet 2 is not limited to the plurality of key units 12.

Further, as shown in fig. 2 and 4, the mounting area 220 is a mounting groove opening toward the key sheet 21, the light-transmitting dodging member 4 is fixed in the mounting groove, and the bottom of the mounting groove is provided with a wiring hole 221. Specifically, the bottom of the installation groove can be semi-closed, the light-transmitting and light-homogenizing piece 4 is supported by the bottom of the installation groove, the light-transmitting and light-homogenizing piece 4 is attached to the closed area of the bottom of the installation groove, and the light-transmitting and light-homogenizing piece 4 can be stably installed in the closed area of the bottom of the installation groove. The bottom of the mounting groove is also partially penetrated, and the LED substrate 32 of the LED lamp bead 31 is placed in the region, so that the electric connector of the LED lamp bead 31 can extend into the hole 140 of the mounting frame 13 to be electrically connected with the circuit board 11. In other embodiments, the housing of the mounting area 220 is not limited to the mounting groove, but may be a completely penetrating through hole, where the light-transmitting light-homogenizing element 4 may be connected to the hole wall; or the back surface of the key sheet 21 is partially thinned, and the transparent light homogenizing member 4 is adhered to the thinned area of the back surface of the key sheet 21.

It should be further noted that, as shown in fig. 5 and 6, the LED lamp beads 31 are at least partially embedded in the light-transmitting and light-homogenizing member 4, and the first surface 41 of the light-transmitting and light-homogenizing member 4 covers the light-emitting surface of the LED lamp beads 31, and the light-emitting surface of the LED lamp beads 31, that is, the surface of the LED lamp beads 31 facing away from the circuit board 11 and towards the user. That is, the light emitting surface of the LED lamp bead 31 is covered from the front view, i.e., the surface where the user is located, further ensuring the brightness and uniformity of the light.

As shown in fig. 6, the light transmitting/homogenizing member 4 includes a light entrance plate 44 and a homogenizing sheet 45 covering the light entrance plate 44 on the side facing the key sheet 21. The light incident plate 44 can be a transparent acrylic plate, the light homogenizing sheet 45 is a soft rubber pad, is white semitransparent, can transmit light, and can also have other colors. In addition, the transparent acrylic plate can also be a thin plate, is soft and can be pressed. The light-transmitting and light-homogenizing member 4 may be a soft rubber pad as a whole, and the side facing the key sheet 21 is a white translucent surface, and the light-transmitting and light-homogenizing member 4 may buffer the pressure caused by the key sheet 21 pressing the key unit 12. The light source 3 may be integrated with the key mat, for example by means of mechanical fixation, or by means of injection moulding.

Further, a notch 40 for embedding at least part of the LED beads 31 is formed in the side surface 43 of the light incident plate 44, and the light homogenizing sheet 45 covers the side of the LED beads 31 facing the key sheet 21. As shown in fig. 5, the notch 40 may extend through the light-entering plate 44 and open toward one side of the circuit board; the slot 40 may not be open to one side of the circuit board as shown in fig. 5. In this implementation, the LED lamp beads 31 are directly installed on the transparent light homogenizing member 4, and when in installation, the LED lamp beads can be installed on the transparent light homogenizing member 4, and the transparent light homogenizing member 4 and the LED lamp beads installed thereon are taken as integral components for installation and disassembly, so that the installation is convenient.

In some embodiments, the light-transmitting and light-homogenizing element 4 may be a single piece, and the structure is a translucent sheet material, for example, the sheet material is milky white, and the refractive material is added, which is not limited to the above-mentioned splicing structure of the light-entering plate 44 and the light-homogenizing sheet 45. The light-transmitting light-homogenizing element 4 may not include the light-entering plate 44 but be directly a light-homogenizing sheet 45, and the light-homogenizing sheet 45 may have a small thickness, so that the LED beads 31 are mounted on the side, or the LED beads 31 are mounted in other areas, and light is transmitted through the light-homogenizing sheet 45 by refraction.

In other embodiments, when the light source includes a cold light plate, the transparent light homogenizing member 4 can be covered on the cold light plate, so that the light generated by the cold light plate can be uniformly displayed through the transparent light homogenizing member 4. The number of cold light plates in one light source can be one or a plurality of.

In addition, in the notch 40 in which the LED bead 31 is preferably embedded in this embodiment, in other embodiments, the LED bead 31 may be installed on a side of the light-transmitting light-homogenizing member 4 facing the circuit board instead of being installed in the notch 40, and the LED bead 31 may be slightly close to the edge of the light-transmitting light-homogenizing member 4, as in fig. 5, the light-transmitting light-homogenizing member 4 may be rectangular, and the LED bead 31 may be disposed near two or three sides thereof, so that a uniform bright light display may also be provided from the light-transmitting indication area.

While the preferred embodiments of the present utility model have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide yet further embodiments.

These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed to be limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the utility model and that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.

Claims (15)

1. A single fire wire switch comprising:

a control board (1), the control board (1) having a circuit board (11), and a key unit (12) electrically connected to the circuit board (11);

a key sheet (2), the key sheet (2) being covered on one side of the circuit board (11) and the key unit (12), and being operable to press the key unit (12) through the key sheet (2); the key sheet (2) includes: a key sheet (21), wherein the key sheet (21) is provided with a light-transmitting indication area (20);

a light source (3), the light source (3) having at least one lamp body, the lamp body being electrically connected to the circuit board (11); and

a light-transmitting and light-homogenizing member (4), wherein the light-transmitting and light-homogenizing member (4) is adjacent to one side of the key sheet (21) facing the key unit (12), and the light-transmitting and light-homogenizing member (4) covers the light-transmitting indication area (20); at least one lamp body is always on after the single live wire switch is used, and light rays of at least one lamp body are emitted into the light-transmitting light-homogenizing part (4) and penetrate through the light-transmitting indication area (20).

2. Single live wire switch according to claim 1, characterized in that the light-transmitting light-homogenizing element (4) has a first surface (41) facing the key sheet (21), a second surface (42) opposite to the first surface (41), and a side (43) surrounding the first surface (41) and the second surface (42), the light rays of the lamp body being emitted into the light-transmitting light-homogenizing element (4) from the side (43) of the light-transmitting light-homogenizing element (4).

3. Single live wire switch according to claim 1, characterized in that the lamp body is arranged at a side surface (43) of the light-transmitting dodging member (4), and that the light-emitting side (311) of the lamp body is directed towards the side surface (43) of the light-transmitting dodging member (4).

4. Single live wire switch according to claim 2, characterized in that the lamp body is at least partially embedded in the light-transmitting light-homogenizing element (4), and that the first surface (41) of the light-transmitting light-homogenizing element (4) covers the light-emitting surface of the lamp body.

5. Single live wire switch according to claim 2, characterized in that the light-transmitting light homogenizing element (4) has a light entry plate and a light homogenizing sheet covering the light entry plate towards the key sheet (21) side.

6. The single live wire switch according to claim 5, wherein a notch for embedding at least part of the lamp body is formed in a side surface (43) of the light incident plate, and the light homogenizing sheet covers one side of the lamp body facing the key sheet (21).

7. Single live wire switch according to claim 6, characterized in that the keypad (2) further comprises a key holder (22), the light-transmitting light-homogenizing element (4) and the lamp body being arranged in the key holder (22); the key sheet (21) covers one side of the key support (22) which faces away from the circuit board (11);

one side of the key support (22) facing the key sheet (21) is provided with an installation area (220), and the lamp body and the light-transmitting light-homogenizing piece (4) are embedded in the installation area (220).

8. The single live wire switch according to claim 7, wherein the mounting area (220) is a mounting groove opening towards the key sheet (21), and the light-transmitting dodging member (4) is fixed in the mounting groove; and the bottom of the mounting groove is provided with a wiring hole (221).

9. Single live wire switch according to claim 1, characterized in that the control board (1) also has a mounting frame (13) for mounting the circuit board (11), the key board (2) being hingedly connected to the mounting frame (13); the mounting frame (13) is provided with a hollowed-out area (130), and the key unit (12) is positioned in the hollowed-out area (130);

the light source (3), the light transmission and uniform light piece (4), the key unit (12) and the light transmission indication area (20) are all provided with a plurality of light transmission parts;

the light sources (3), the light transmission dodging piece (4), the key units (12) and the light transmission indication areas (20) are arranged in a one-to-one correspondence mode; each light-transmitting and light-homogenizing piece (4) covers the corresponding key unit (12).

10. Single live wire switch according to claim 1, characterized in that the keypad (2) is hinged to the control board (1); the key sheet (21) has a plurality of; one of the key sheets (21) is provided with a plurality of light-transmitting indication areas (20).

11. Single live wire switch according to claim 1, characterized in that the light source (3) comprises a lamp body; the lamp body is located on the side face (43) of the light-transmitting and light-homogenizing piece (4) far away from the edge of the single-live wire switch.

12. Single live wire switch according to claim 1, characterized in that the lamp body has LED beads (31); or the lamp body is provided with a cold light plate.

13. Single live wire switch according to claim 1, characterized in that the lamp body has LED beads (31), the light source (3) comprises less than or equal to three LED beads (31), and the LED beads (31) are electrically connected with the circuit board (11).

14. Single live wire switch according to claim 1, characterized in that the light source (3) has a plurality of lamp bodies, and that at least one lamp body is normally on after use of the single live wire switch.

15. A single fire wire switch comprising:

a control board (1), the control board (1) having a circuit board (11), and a key unit (12) electrically connected to the circuit board (11);

a key sheet (2), the key sheet (2) being covered on one side of the circuit board (11) and the key unit (12), and being operable to press the key unit (12) through the key sheet (2); the key sheet (2) includes: a key sheet (21), wherein the key sheet (21) is provided with a light-transmitting indication area (20);

a light source (3), the light source (3) having a plurality of lamp bodies, the lamp bodies being electrically connected to the circuit board (11); and

a light-transmitting and light-homogenizing member (4), wherein the light-transmitting and light-homogenizing member (4) is adjacent to one side of the key sheet (21) facing the key unit (12), and the light-transmitting and light-homogenizing member (4) covers the light-transmitting indication area (20); the control panel (1) is operable to control at least one of the lamp bodies to be normally on and is operable to control at least one of the lamp bodies to be off; and the light rays of the normally-bright lamp body are injected into the light-transmitting light-homogenizing piece (4) and penetrate through the light-transmitting indication area.