CN216561416U

CN216561416U - High-efficient backlight structure and luminous clock and watch of clock and watch

Info

Publication number: CN216561416U
Application number: CN202122547403.6U
Authority: CN
Inventors: 林雄忠; 王碧海; 黄雅莹
Original assignee: Zhangzhou Guanyu Lighting Co Ltd
Current assignee: Zhangzhou Guanyu Lighting Co Ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-05-17
Anticipated expiration: 2031-10-21

Abstract

The utility model discloses a high-efficiency backlight structure of a clock and a luminous clock, which comprise a light source, a controller and a power module, wherein the light source is positioned on the side of a clock dial and is matched with a light uniformizing structure, the light uniformizing structure diffuses one or a few concentrated light rays emitted by the light source into a surface light source uniformly distributed on the front surface of the clock dial, the controller is used for controlling the light source to realize a timing switch, a normally open switch, a normally closed switch or a switch according to an external trigger signal, and the power module is electrically connected with the light source and the controller through an electric circuit. Compared with the prior art, the utility model can realize that the light is uniformly dispersed on the clock dial to obtain soft lighting light by only adopting a small number of LED lamps, and has the advantages of high efficiency, power saving, low cost, simple structure and the like.

Description

High-efficient backlight structure and luminous clock and watch of clock and watch

Technical Field

The utility model relates to the technical field of illumination, in particular to a high-efficiency backlight structure of a clock.

Background

The existing clock with the lighting function generally adopts a plurality of lamp beads to emit light, and has the problems of uneven light emission, dazzling use at night, large power consumption, low luminous efficiency and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a high-efficiency backlight structure of a clock.

In order to achieve the purpose, the utility model provides the following technical scheme:

the high-efficiency backlight structure of the clock comprises a light source, a controller and a power supply module, wherein the light source is positioned on the side of a clock dial and is matched with a light homogenizing structure, one or a few concentrated light rays emitted by the light source are diffused into a surface light source uniformly distributed on the front surface of the clock dial by the light homogenizing structure, the controller is used for controlling the light source to realize a timing switch, a normally open state, a normally closed state or a switch according to an external trigger signal, and the power supply module is electrically connected with the light source and the controller through an electric circuit.

Further, the light sources are point light sources and the number of the light sources is not more than four.

Further, the light homogenizing structure comprises a backlight reflecting plate arranged below the clock dial in parallel, the upper surface of the backlight reflecting plate is coated with a diffusion film, the lower surface of the backlight reflecting plate is coated with a reflecting film, the left side surface and the right side surface of the backlight reflecting plate are coated with a shading film, the upper side surface and the lower side surface of the backlight reflecting plate are provided with light-tight covering edges, the light source is embedded in the left side surface or the right side surface of the backlight reflecting plate, the upper surface of the backlight reflecting plate is provided with a light emitting area, and the clock time scale is arranged in the light emitting area.

Further, the shading film coated on the side face of the backlight board embedded with the light source is a silver-black double-color film, the shading film coated on the side opposite to the silver-black double-color film is a transparent double-sided adhesive tape, the light-tight covered edge is a matte silver covered edge, the light source is an LED lamp panel, and the LED lamp panel is coated by a black film.

Further, the light homogenizing structure is a light guide belt or light guide fibers arranged around the outer edge of the clock dial, two ends of the light guide belt extend out of an opening in the side wall of the clock dial and are respectively coupled with a light source through a matching device, and the light source is an LED lamp bead.

Further, the light homogenizing structure is a reflective film arranged around the clock dial, the light source is an LED lamp, a mounting seat is arranged in the middle of the clock dial, the mounting seat comprises a circuit mounting cavity located in the middle and an annular side wall sleeved on the periphery of the circuit mounting cavity, four through holes are formed in the periphery of the annular side wall, four LED lamps are correspondingly arranged between the circuit mounting cavity and the annular side wall, and the LED lamps emit light beams to the reflective film.

Further, the light homogenizing structure comprises a backlight reflecting plate arranged below the clock dial in parallel, a diffusion sheet is laid on the upper surface of the backlight reflecting plate, a reflecting sheet is laid on the lower surface of the backlight reflecting plate, the light source is an LED lamp tube or a lamp panel, and the LED lamp tube or the lamp panel transversely penetrates through the backlight reflecting plate from the side and is parallel to the diffusion sheet.

According to another aspect of the utility model, there is provided a light emitting timepiece employing any of the aforementioned backlight structures.

The utility model has the beneficial effects that:

the utility model provides a high-efficiency backlight structure of a clock, which can uniformly disperse light on a clock dial to obtain soft illumination light by only adopting a small number of LED lamps and has the advantages of high efficiency, power saving, low cost, simple structure and the like.

Drawings

Fig. 1 is a schematic front view of a light-emitting timepiece according to an embodiment of the present invention.

Fig. 2 is a schematic view of a back structure of a light-emitting timepiece according to an embodiment of the utility model.

Fig. 3 is a schematic structural diagram of a high-efficiency backlight structure of a timepiece according to an embodiment of the utility model.

Fig. 4 is a bottom view of fig. 3.

Fig. 5 is a schematic structural view of a high-efficiency backlight structure of a timepiece according to another embodiment of the present invention.

Fig. 6 is a schematic structural view of a high-efficiency backlight structure of a timepiece according to still another embodiment of the present invention.

Fig. 7 is a schematic structural view of a high-efficiency backlight structure of a timepiece according to still another embodiment of the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", "one face", "the other face", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed", "connected", and the like are to be construed broadly, such as "connected", may be fixedly connected, or detachably connected or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be specifically understood in specific cases by those of ordinary skill in the art.

The present invention will be described in detail with reference to the following examples.

Example 1

Referring to fig. 1-4, according to an embodiment of the present invention, a high-efficiency backlight structure for a timepiece includes a light source 1, a controller 2, and a power module 3. The light source 1 is positioned at the side of the clock dial and is matched with the light homogenizing structure, and the light homogenizing structure can diffuse one or a few concentrated light rays emitted by the light source 1 into a surface light source uniformly distributed on the front surface of the clock dial 4. The controller 2 is used for controlling the light source 1 to realize a timing switch, a normally open switch, a normally closed switch or a switch according to an external trigger signal, and the power supply module 3 is electrically connected with the light source 1 and the controller 2 through an electric circuit. In this embodiment, the power module 3 may be a battery pack or a power adapter, and the manner of switching the light source 1 according to the external trigger signal may be light sensing triggering, infrared triggering, moving object triggering, or the like. In the example of fig. 1, the controller 2 is disposed on the back of the timepiece, and when the light source 1 is triggered by infrared trigger, a moving object, or the like, the controller 2 may also be disposed on the side or front of the timepiece.

In a preferred embodiment, the light sources 1 are point light sources and are not more than four in number. The quantity of the light sources can be controlled to reduce the electric energy loss to the maximum extent, and the light rays emitted by a small quantity of point light sources are fully utilized, so that a soft and non-dazzling light-emitting effect can be created, and the production cost can be reduced.

In this embodiment, the dodging structure includes a backlight reflector 5a disposed in parallel below the timepiece dial 4. The backlight reflector 5a has a diffusion film 51a on the upper surface, a reflection film 52a on the lower surface, a light shielding film 53a on the left and right side surfaces, and opaque edges 54a on the upper and lower side surfaces. The light source 1 is embedded in the right side surface of the backlight reflector 5, the upper surface of the backlight reflector 5a is provided with a luminous zone 55a, and the clock time scale is arranged in the luminous zone 55 a. It should be noted that, in some other embodiments, the light source 1 may also be embedded in the left side surface of the backlight reflector, and the specific structure thereof is similar to that embedded in the right side surface of the backlight reflector 5a, and will not be described herein again. The right side surface of the backlight plate 5a embedded with the light source is coated with a silver and black double-color head film, the black surface faces outwards, and the silver surface faces towards the luminous zone, so that the light transmission can be prevented, the light reflection can be increased, and the luminous efficiency is improved. The shading film 53a coated on the opposite side is a transparent double-sided adhesive tape, the opaque covered edge 54a is a matte covered edge, and the light source 1 is an LED lamp panel coated by a black film. In some embodiments, the power line of the LED lamp panel is red and black, and the effective length is 60 mm. The thickness of the backlight reflector may be 2.1-2.5 mm.

Example 2

Referring to fig. 5, the present embodiment is different from embodiment 1 in that the light-homogenizing structure is a light-guiding strip or fiber 5b disposed around the outer edge of the watch dial 4, the light-guiding strip has two ends 51b, and the two ends 51b extend from an opening 52b on the dial side wall and are respectively coupled with the light source 1 through a matching device 53 b. In this embodiment, the light source 1 is an LED lamp bead. The LED lamp bead can be monochrome, RGB or RGBW. This embodiment only needs to use two LED lamp pearls through the optical fiber who encircles the dial plate setting, can realize the even illumination of whole dial plate, greatly reduced the loss of electric energy.

Example 3

Referring to fig. 6, the present embodiment is different from embodiment 1 in that the light uniformizing structure is a reflective film 5c disposed around the timepiece dial 4. Light source 1 is the LED lamp, and clock dial 4 middle part is equipped with mount pad 6. The mounting base 6 comprises a circuit mounting cavity 61 located in the middle and an annular side wall 62 sleeved on the periphery of the circuit mounting cavity 61, and four through holes 63 are formed around the annular side wall 62. Four light source channels 64 are correspondingly arranged between the circuit installation cavity 61 and the annular side wall 62, and the light source channels 64 are respectively provided with LED lamps which emit light beams to the reflecting film 5 c. In this embodiment, the LED lamp and the clock can share a power supply, so that the overall structure is more compact and simpler. The LED light source is diffused from the middle part to the periphery and is reflected by the reflecting film 5c to form a uniform luminous surface light source, so that the defects of dazzling and the like caused by light concentration are avoided.

Example 4

Referring to fig. 7, the difference between the present embodiment and embodiment 1 is that the light uniformizing structure includes a backlight reflector 5d disposed in parallel below the watch dial 4, and a diffusion sheet 51d is disposed on the upper surface of the backlight reflector 5d, and a reflection sheet 52d is disposed on the lower surface. The diffusion sheet 51d may include an antistatic coating layer, a base material and a diffusion layer from bottom to top, wherein the base material may be one or more of PET, PC and PMMA. The light source 1 is an LED lamp tube or a lamp panel, and the LED lamp tube or the lamp panel traverses the backlight reflector 5d from the side and is arranged in parallel with the diffusion sheet 51 d.

The embodiments in the above embodiments can be further combined or replaced, and the embodiments are only used for describing the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various changes and modifications made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention belong to the protection scope of the present invention.

Claims

1. The high-efficiency backlight structure of the clock is characterized by comprising a light source, a controller and a power supply module, wherein the light source is positioned on the side of a clock dial and is matched with a light homogenizing structure, the light homogenizing structure diffuses one or a few concentrated light rays emitted by the light source into a surface light source uniformly distributed on the front surface of the clock dial, the controller is used for controlling the light source to realize a timing switch, a normally open state, a normally closed state or a switch according to an external trigger signal, and the power supply module is electrically connected with the light source and the controller through an electric circuit.

2. A high efficiency backlight structure for a timepiece as claimed in claim 1, wherein the light sources are point light sources and are not more than four in number.

3. The high-efficiency backlight structure of the clock and watch of claim 1, wherein the light homogenizing structure comprises a backlight reflector disposed in parallel below the clock and watch dial, the backlight reflector is coated with a diffusion film on the upper surface, a reflective film on the lower surface, a light shielding film on the left and right sides, and light-tight edges on the upper and lower sides, the light source is embedded in the left or right side of the backlight reflector, the backlight reflector has a light emitting area on the upper surface, and the clock and watch time scale is disposed in the light emitting area.

4. A high-efficiency backlight structure for clocks and watches as claimed in claim 3, wherein the light shielding film coated on the side of the backlight plate embedded with the light source is a silver-black double-color film, the light shielding film coated on the opposite side is a transparent double-sided tape, the opaque covered edge is a matte silver covered edge, the light source is an LED lamp plate, and the LED lamp plate is coated with a black film.

5. The high-efficiency backlight structure of the clock according to claim 1, wherein the light-homogenizing structure is a light guide band or a light guide fiber arranged around the outer edge of the clock dial, two ends of the light guide band extend out from the opening on the side wall of the dial and are respectively coupled with the light source through the matching device, and the light source is an LED lamp bead.

6. The high-efficiency backlight structure of the clock according to claim 1, wherein the light homogenizing structure is a reflective film disposed around the clock dial, the light source is an LED lamp, a mounting seat is disposed in the middle of the clock dial, the mounting seat includes a circuit mounting cavity located in the middle, and an annular sidewall sleeved on the periphery of the circuit mounting cavity, four through holes are formed around the annular sidewall, four LED lamps are correspondingly disposed between the circuit mounting cavity and the annular sidewall, and the LED lamps emit light beams toward the reflective film.

7. The efficient backlight structure of the clock and watch of claim 1, wherein the light homogenizing structure comprises a backlight reflector arranged in parallel below the clock dial, a diffusion sheet is laid on the upper surface of the backlight reflector, a reflection sheet is laid on the lower surface of the backlight reflector, the light source is an LED lamp tube or a lamp panel, and the LED lamp tube or the lamp panel laterally crosses the backlight reflector and is parallel to the diffusion sheet.

8. A light emitting timepiece, characterized by comprising a backlight structure according to any one of claims 1 to 7.