CN220821565U - Light emitting device and lighting apparatus - Google Patents

Abstract

The utility model discloses a light emitting device and lighting equipment, comprising a substrate; the first light-emitting module is arranged on the substrate and comprises a purple light chip, and the purple light chip is used for emitting purple light with the wavelength of 400 nm; the second light-emitting module is arranged on the substrate and comprises a first blue light chip, and the first blue light chip is used for emitting blue light with the wavelength of 420 nm; the third light-emitting module is arranged on the substrate and comprises a second blue light chip, the second blue light chip is used for emitting blue light with the wavelength of 465nm, and red and yellow mixed fluorescent powder with a preset proportion is coated on the first blue light chip and the second blue light chip at the same time, so that the first blue light chip and the second blue light chip can be matched together to emit white light with the wavelength of 420 nm-680 nm; and the fourth light-emitting module is arranged on the substrate and comprises a red light chip, and the red light chip is used for emitting red light with the wavelength of 700 nm.

Description

Light emitting device and lighting apparatus

Technical Field

The present utility model relates to the field of lighting technology, and in particular, to a light emitting device and a lighting apparatus.

Background

People can make sunrise and sunset in the natural environment of sunlight and live for millions of years, genetic genes in the human body are completely adapted to the rhythm (rhythm, which refers to the rhythm and law of motion of seasons or certain objects and also refers to migration behaviors of animals) caused by sunlight, people receive high-intensity sunlight in the daytime, the secretion of melatonin in the human body is inhibited, and the secretion of cortisol is increased, so that people are more excited and are not easy to make sleepiness. With the continuous development of human civilization and science and technology, in more than 100 years, the artificial illumination such as fluorescent lamps and blue LEDs is used by people on a large scale, and as the luminous principles of fluorescent lamps and LEDs are inconsistent with the sun rays, the spectrum is also greatly different, and most of the time, the study, work and life of modern people are indoor, and cannot contact enough sunlight, so that the rhythm of the human body of people is disordered, thereby affecting the health of people to a certain extent.

For the problems, some illumination devices with similar sunlight spectrum appear on the market, and the illumination devices generally adopt a purple light chip or a blue light chip to excite to simulate the sunlight spectrum, but the generated illumination light rays are in the absence of the purple light of 380-420nm part and the red light of 680-780 nm part, so that the illumination devices cannot truly realize full spectrum illumination of the simulated sunlight, cannot effectively improve the body rhythm of people moving indoors, and cannot meet the needs of healthy illumination of people.

Disclosure of utility model

In view of the above, the utility model provides a light emitting device and a lighting device, which are used for solving the problems that full spectrum solar illumination cannot be truly simulated in the prior art, body rhythm of people cannot be effectively improved, and healthy lighting needs cannot be met.

To achieve one or some or all of the above or other objects, the present utility model provides a light emitting device comprising:

A substrate;

The first light-emitting module is arranged on the substrate and comprises a purple light chip, and the purple light chip is used for emitting purple light with the wavelength of 400 nm;

The second light-emitting module is arranged on the substrate and comprises a first blue light chip, and the first blue light chip is used for emitting blue light with the wavelength of 420 nm;

The third light-emitting module is arranged on the substrate and comprises a second blue light chip, the second blue light chip is used for emitting blue light with the wavelength of 465nm, and red and yellow mixed fluorescent powder with a preset proportion is coated on the first blue light chip and the second blue light chip at the same time, so that the first blue light chip and the second blue light chip can be matched together to emit white light with the wavelength of 420 nm-680 nm; and

The fourth light-emitting module is arranged on the substrate and comprises a red light chip, and the red light chip is used for emitting red light with the wavelength of 700 nm.

In one embodiment, the violet light chip, the first blue light chip, the second blue light chip and the red light chip are electrically connected in series or in parallel.

In one embodiment, the first light emitting module, the second light emitting module, the third light emitting module and the fourth light emitting module are distributed in a rectangular structure, the first light emitting module and the fourth light emitting module are arranged in a staggered manner in the first direction of the substrate, and the second light emitting module and the third light emitting module are arranged in a staggered manner in the second direction of the substrate.

In one embodiment, a first accommodating groove, a second accommodating groove, a third accommodating groove and a fourth accommodating groove are concavely formed on the same plate surface of the substrate, the first light emitting module is embedded in the first accommodating groove, the second light emitting module is embedded in the second accommodating groove, the third light emitting module is embedded in the third accommodating groove, and the fourth light emitting module is embedded in the fourth accommodating groove.

In one embodiment, the substrate is further provided with a first wiring groove, the first wiring groove is communicated with the first accommodating groove and the second accommodating groove, and a first electric wire for connecting the ultraviolet chip and the first blue light chip is arranged in the first wiring groove.

In one embodiment, the substrate is further provided with a second wiring groove, the second wiring groove is communicated with the second accommodating groove and the third accommodating groove, and a second wire for connecting the first blue light chip and the second blue light chip is arranged in the second wiring groove.

In one embodiment, the substrate is further provided with a third wiring groove, the third wiring groove is communicated with the third accommodating groove and the fourth accommodating groove, and a third wire for connecting the second blue light chip and the red light chip is arranged in the third wiring groove.

In one embodiment, the substrate is provided with a positive electrode leg and a negative electrode leg, the positive electrode leg and the negative electrode leg are arranged in diagonal positions, and the positive electrode leg and the negative electrode leg are electrically connected with an external power supply.

A lighting device comprising a light emitting device as described above.

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

The light-emitting device of the scheme is applied to lighting equipment and is used for emitting lighting rays to meet indoor lighting requirements of people. Specifically, after the light emitting device is electrified, the purple light chip of the first light emitting module arranged on the substrate can emit 400 nm-wavelength purple light, the first blue light chip of the second light emitting module can emit 420 nm-wavelength blue light independently, the second blue light chip of the third light emitting module can emit 465 nm-wavelength blue light independently, meanwhile, after the light rays emitted by the first blue light chip and the second blue light chip are fused, 420 nm-680 nm-wavelength white light can be generated simultaneously, the red light chip of the fourth light emitting module can emit 700 nm-wavelength red light, after the light rays are converged and fused, continuous full-spectrum light rays can be formed, illumination light consistent with solar spectrum can be simulated, and therefore body rhythm of people can be effectively improved, meanwhile, the requirements of health illumination of people are met, and vision of people is protected.

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.

Wherein:

Fig. 1 is a schematic view of a structure of a light emitting device according to the present application.

Reference numerals illustrate:

10. A substrate; 11. a first accommodating groove; 12. a second accommodating groove; 13. a third accommodating groove; 14. a fourth accommodating groove; 15. a first wiring groove; 16. a second wiring groove; 17. a third wiring groove; 20. a first light emitting module; 21. a purple light chip; 30. a second light emitting module; 31. a first blue light chip; 40. a third light emitting module; 41. a second blue light chip; 50. a fourth light emitting module; 51. a red light chip; 60. a positive electrode leg; 70. and a negative electrode leg.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1, a light emitting device according to an embodiment of the present application, specifically an LED light emitting device, has the advantages of energy saving, consumption reduction, and long service life.

Illustratively, the light emitting device includes a substrate 10, a first light emitting module 20, a second light emitting module 30, a third light emitting module 40, and a fourth light emitting module 50. The carrier body member, which is basically a light emitting device, is used for loading and fixing the first light emitting module 20, the second light emitting module 30, the third light emitting module 40 and the fourth light emitting module 50.

For example, in an alternative embodiment, the substrate 10 is a rectangular structure, and may be made of one or more materials selected from aluminum, ceramic, etc., which has advantages of low manufacturing difficulty and cost, high structural strength, etc.

In the application, a first light-emitting module 20 is arranged on a substrate 10, the first light-emitting module 20 comprises a purple light chip 21, the purple light chip 21 is used for emitting purple light with the wavelength of 400nm, a second light-emitting module 30 is arranged on the substrate 10, the second light-emitting module 30 comprises a first blue light chip 31, the first blue light chip 31 is used for emitting blue light with the wavelength of 420nm, a third light-emitting module 40 is arranged on the substrate 10, the third light-emitting module 40 comprises a second blue light chip 41, the second blue light chip 41 is used for emitting blue light with the wavelength of 465nm, and red and yellow mixed fluorescent powder with the preset proportion is coated on the first blue light chip 31 and the second blue light chip 41 at the same time, so that the first blue light chip 31 and the second blue light chip 41 can be matched together to emit white light with the wavelength of 420 nm-680 nm; the fourth light emitting module 50 is disposed on the substrate 10, and the fourth light emitting module 50 includes a red light chip 51, and the red light chip 51 is configured to emit red light with a wavelength of 700 nm.

Thus, implementing the above-described embodiments of the present utility model will have the following beneficial effects: the light-emitting device of the scheme is applied to lighting equipment and is used for emitting lighting rays to meet indoor lighting requirements of people. Specifically, after the light emitting device is powered on, the violet chip 21 of the first light emitting module 20 installed on the substrate 10 can emit 400nm wavelength violet light, the first blue chip 31 of the second light emitting module 30 can emit 420nm wavelength blue light alone, the second blue chip 41 of the third light emitting module 40 can emit 465nm wavelength blue light alone, meanwhile, after the light emitted by the first blue chip 31 and the light emitted by the second blue chip 41 are fused, 420 nm-680 nm wavelength white light can be generated simultaneously, the red chip 51 of the fourth light emitting module 50 can emit 700nm wavelength red light, after the light beams are converged and fused, continuous full spectrum light can be formed, and illumination light consistent with solar spectrum can be simulated, so that the body rhythm of people can be effectively improved, meanwhile, the requirements of healthy illumination of people can be met, and the eyesight of people can be protected.

For example, in the red and yellow mixed phosphor coated on the first blue chip 31 and the second blue chip 41, the ratio of the red phosphor to the yellow phosphor is 6:4, so as to facilitate the continuity of the spectrum.

It should be noted that the surfaces of the ultraviolet chip 21 and the red light chip 51 are also covered with a phosphor layer, and parameters such as color and thickness of the phosphor layer may be selected according to actual needs, which are not particularly limited and described herein.

Referring to fig. 1, in an alternative embodiment, a positive electrode pad 60 and a negative electrode pad 70 are disposed on a substrate 10, the positive electrode pad 60 and the negative electrode pad 70 are disposed at diagonal positions, and the positive electrode pad 60 and the negative electrode pad 70 are electrically connected to an external power source.

Specifically, the positive electrode welding leg 60 and the negative electrode welding leg 70 are welded with the power line of the external power supply, so that the light-emitting device and the external power supply are electrically connected, the welding connection strength is high and reliable, and the joint is not easy to be pulled and broken by external force.

Further, the violet chip 21, the first blue chip 31, the second blue chip 41 and the red chip 51 are electrically connected in series or in parallel. Therefore, after the external power is applied to the substrate 10 through the positive electrode pad 60 and the negative electrode pad 70, the electric energy can be rapidly and uniformly split into the violet chip 21, the first blue chip 31, the second blue chip 41 and the red chip 51, so as to meet the lighting and lighting requirements of the violet chip 21, the first blue chip 31, the second blue chip 41 and the red chip 51.

In yet another alternative embodiment, the first light emitting module 20, the second light emitting module 30, the third light emitting module 40 and the fourth light emitting module 50 are distributed in a rectangular structure, and the first light emitting module 20 and the fourth light emitting module 50 are arranged in a staggered manner in the first direction of the substrate 10, and the second light emitting module 30 and the third light emitting module 40 are arranged in a staggered manner in the second direction of the substrate 10.

On the one hand, the first light-emitting module 20, the second light-emitting module 30, the third light-emitting module 40 and the fourth light-emitting module 50 which are arranged in a staggered manner can better adapt to the structural layout characteristics on the substrate 10, and most of the space positions in the middle of the substrate 10 are fully utilized, so that the margins of the ultraviolet chip 21, the first blue chip 31, the second blue chip 41 and the red chip 51 and the peripheral edge of the substrate 10 are basically kept consistent, and uniform annular safe margins are formed, so that the chips are prevented from being easily interfered by collision and/or electromagnetic interference of other electrical components in the lighting equipment; on the other hand, in the projection directions of the first direction and the second direction, the light energy of the purple light, the blue light, the white light and the red light can be fused more fully, and the light rays of each color are distributed more uniformly, so that the finally emitted mixed illumination light rays can be more truly close to the sunlight.

Referring to fig. 1, in addition, in order to enhance the mounting of each light emitting module on the substrate 10 more firmly and reliably, and not easy to loose from the substrate 10 due to environmental vibration, in another alternative embodiment, a first accommodating groove 11, a second accommodating groove 12, a third accommodating groove 13 and a fourth accommodating groove 14 are concavely formed on the same surface of the substrate 10, the first light emitting module 20 is embedded in the first accommodating groove 11, the second light emitting module 30 is embedded in the second accommodating groove 12, the third light emitting module 40 is embedded in the third accommodating groove 13, and the fourth light emitting module 50 is embedded in the fourth accommodating groove 14.

In consideration of that each chip is actually in a relatively closed groove cavity environment after being mounted, in order to improve the heat dissipation capability of each chip, heat conducting silica gel can be coated in the first accommodating groove 11, the second accommodating groove 12, the third accommodating groove 13 and the fourth accommodating groove 14, so that the back and/or the side surface of each chip is in contact with the heat conducting silica gel, and therefore, the heat generated by the chip work is rapidly conducted to the substrate 10 by virtue of the good heat conducting property of the heat conducting silica gel, and is dissipated to the environment through the substrate 10.

Further, in yet another alternative embodiment, the substrate 10 is further provided with a first wiring groove 15, the first wiring groove 15 communicates with the first accommodating groove 11 and the second accommodating groove 12, and a first electric wire for connecting the violet chip 21 and the first blue chip 31 is installed in the first wiring groove 15. Similarly, the substrate 10 is further provided with a second wiring groove 16, the second wiring groove 16 is communicated with the second accommodating groove 12 and the third accommodating groove 13, and a second wire for connecting the first blue light chip 31 and the second blue light chip 41 is arranged in the second wiring groove 16. The substrate 10 is further provided with a third wiring groove 17, the third wiring groove 17 is communicated with the third accommodating groove 13 and the fourth accommodating groove 14, and a third electric wire for connecting the second blue light chip 41 and the red light chip 51 is arranged in the third wiring groove 17.

The first electric wire, the second electric wire and the third electric wire are embedded in the corresponding first wiring groove 15, the second wiring groove 16 and the third wiring groove 17, so that the first electric wire, the second electric wire and the third electric wire are stored and tidied, the occupied plate surface space of the substrate 10 is avoided, and the light-emitting device is tidier.

Furthermore, the application also protects a lighting device comprising a light emitting device according to any of the embodiments above.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described 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 above 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 utility model. 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 (9)

1. A light emitting device, comprising:

A substrate;

The first light-emitting module is arranged on the substrate and comprises a purple light chip, and the purple light chip is used for emitting purple light with the wavelength of 400 nm;

The second light-emitting module is arranged on the substrate and comprises a first blue light chip, and the first blue light chip is used for emitting blue light with the wavelength of 420 nm;

The third light-emitting module is arranged on the substrate and comprises a second blue light chip, the second blue light chip is used for emitting blue light with the wavelength of 465nm, and red and yellow mixed fluorescent powder with a preset proportion is coated on the first blue light chip and the second blue light chip at the same time, so that the first blue light chip and the second blue light chip can be matched together to emit white light with the wavelength of 420 nm-680 nm; and

The fourth light-emitting module is arranged on the substrate and comprises a red light chip, and the red light chip is used for emitting red light with the wavelength of 700 nm.

2. The light-emitting device according to claim 1, wherein the violet chip, the first blue chip, the second blue chip, and the red chip are electrically connected in series or in parallel.

3. The light-emitting device according to claim 1, wherein the first light-emitting module, the second light-emitting module, the third light-emitting module and the fourth light-emitting module are distributed in a rectangular structure, the first light-emitting module and the fourth light-emitting module are arranged in a staggered manner in a first direction of the substrate, and the second light-emitting module and the third light-emitting module are arranged in a staggered manner in a second direction of the substrate.

4. The light-emitting device according to claim 1, wherein a first accommodating groove, a second accommodating groove, a third accommodating groove and a fourth accommodating groove are concavely formed on the same plate surface of the substrate, the first light-emitting module is embedded in the first accommodating groove, the second light-emitting module is embedded in the second accommodating groove, the third light-emitting module is embedded in the third accommodating groove, and the fourth light-emitting module is embedded in the fourth accommodating groove.

5. The light-emitting device according to claim 4, wherein the substrate is further provided with a first wiring groove, the first wiring groove communicates the first accommodating groove and the second accommodating groove, and a first electric wire for connecting the violet chip and the first blue chip is provided in the first wiring groove.

6. The light-emitting device according to claim 4, wherein the substrate is further provided with a second wiring groove, the second wiring groove communicates the second accommodating groove and the third accommodating groove, and a second electric wire for connecting the first blue light chip and the second blue light chip is provided in the second wiring groove.

7. The light-emitting device according to claim 4, wherein the substrate is further provided with a third wiring groove, the third wiring groove communicates the third accommodating groove and the fourth accommodating groove, and a third electric wire for connecting the second blue light chip and the red light chip is provided in the third wiring groove.

8. The light-emitting device according to any one of claims 1 to 7, wherein a positive electrode pad and a negative electrode pad are provided on the substrate, the positive electrode pad and the negative electrode pad being arranged in a diagonal position, the positive electrode pad and the negative electrode pad being for electrical connection with an external power source.

9. A lighting device comprising the light-emitting device according to any one of claims 1 to 8.