CN215731762U - Support for light-emitting element and ultraviolet light-emitting device - Google Patents
Support for light-emitting element and ultraviolet light-emitting device Download PDFInfo
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- CN215731762U CN215731762U CN202121926740.XU CN202121926740U CN215731762U CN 215731762 U CN215731762 U CN 215731762U CN 202121926740 U CN202121926740 U CN 202121926740U CN 215731762 U CN215731762 U CN 215731762U
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Abstract
The utility model provides a bracket for a light-emitting element and an ultraviolet light-emitting device. Through the support with the structure, the ultraviolet light-emitting device is formed through subsequent packaging, the first ultraviolet light-emitting element can be connected with the first bonding pad in a pair mode, glue dispensing is directly carried out on the inner area enclosed by the second groove, and the hemispherical first light-transmitting colloid is formed and covers the first ultraviolet light-emitting element. Support encapsulation's ultraviolet luminescent device more than utilization compares current box dam and optical window cooperation structure, and it need not to make the box dam, directly through first printing opacity colloid encapsulation, does not pass through the air total reflection, has reduced light loss, and it can also be at reduce cost when quick encapsulation in addition.
Description
Technical Field
The utility model relates to the technical field of ultraviolet light emission, in particular to a bracket for a light-emitting element and an ultraviolet light-emitting device.
Background
Traditional disinfection methods include chlorination, ozone and mercury lamp sterilization. The chlorination is generally used in water plants, and the purpose of disinfection is achieved by adding chlorine into water, chlorine generally volatilizes by heating, but some residual chlorine is inevitably generated in the water, and the water with excessive residual chlorine can cause cancer after long-term drinking; the ozone sterilization process has long decomposition time, strong smell and great harm to the respiratory system, the nervous system and the immune system of people; mercury in the process of mercury lamp sterilization contains high toxicity, which causes great pollution to the environment.
The UVC LED can also sterilize by deep ultraviolet, and has the advantages of environmental protection, high efficiency and no potential safety hazard. The sterilization is quickly started through the irradiation of ultraviolet wave bands, the overflowing sterilization is realized, and the possibility of secondary pollution is avoided. Therefore, compared with mercury lamp sterilization, the UVC LED is more suitable for short-distance rapid sterilization, and the equipment is small in size.
The existing UVC LED device mostly adopts a DPC support or an HTCC support with a dam structure, a quartz or sapphire glass optical window is sealed at the top, the glass optical window is welded on the dam of the support by using organic or inorganic welding flux, the structure has higher raw material cost and complex packaging process, and the risk of lens falling exists, in addition, the UVC LED chip is a gallium nitride substrate, the refractive index of GaN is 1.78, the refractive index of sapphire and quartz glass is 1.4-1.6, the device chip of the traditional structure emits light into the air of a cavity body (the refractive index is 1), total reflection can occur, the light in the wall body also has reflection loss in the cavity, and finally, only a small amount of light can be emitted out of the device through the optical window for utilization.
Therefore, it is desirable to provide a new bracket for a light emitting device and a uv light emitting device to solve the existing drawbacks.
Disclosure of Invention
Based on the support and the ultraviolet light-emitting device, the support and the ultraviolet light-emitting device for the light-emitting element are provided, the groove structure is arranged, glue is directly dispensed, the box dam and the light window are replaced, and the purposes of fast packaging and cost reduction are achieved.
The utility model provides a support for a light-emitting element, which comprises a substrate, a first support and a second support, wherein the substrate is provided with a first surface and a second surface which are oppositely arranged;
the first bonding pad pair is arranged in the functional area;
the first groove surrounds the first bonding pad to the outside, and is sunken from the first surface to the second surface;
and the second grooves are arranged outside the first grooves in an enclosing mode at intervals, the second grooves surround a circle to form a circle, and the second grooves are sunken from the first surface to the second surface.
Preferably, the bracket further comprises a second pad pair and a third pad pair, and the second pad pair and the third pad pair are symmetrically distributed on two sides of the second groove far away from the first groove.
Preferably, the bracket further comprises a third groove and a fourth groove both from the first surface to the second surface, the third groove is surrounded on the second pad, and the fourth groove is surrounded on the third pad.
Preferably, the bracket further comprises a first blocking portion and a second blocking portion, wherein the first blocking portion and the second blocking portion extend from the first surface to face away from the second surface, the first blocking portion is arranged between the second groove and the second pad pair, and the second blocking portion is arranged between the second groove and the third pad pair.
Preferably, the first pad pair includes two first pads arranged at an interval, the two first pads and the interval between the first pads enclose a circular shape, and the interval between the first pads is communicated with the first groove.
Preferably, the second pad pair includes two second pads arranged at intervals, the two second pads and the interval between the second pads enclose a rectangle, and the interval between the second pads is communicated with the third groove;
and/or the third bonding pad pair comprises two third bonding pads arranged at intervals, the intervals between the two third bonding pads and the third bonding pads enclose a rectangle, and the intervals between the third bonding pads are communicated with the fourth groove.
Preferably, the first blocking portion and the second blocking portion are symmetrically arranged, the third groove and the fourth groove are symmetrically arranged, and the third groove and the fourth groove respectively surround a circle to form a rectangle.
The utility model also provides an ultraviolet light emitting device comprising a support for a light emitting element, the support comprising a support structure as described above;
the first ultraviolet light-emitting element is connected to the first bonding pad pair of the bracket;
the first light-transmitting colloid covers the inner area surrounded by the second groove of the bracket and the first ultraviolet light-emitting element, and is a hemisphere.
Preferably, the ultraviolet light emitting device further comprises a voltage stabilizing element connected to the second pad pair of the bracket and connected in parallel with the first ultraviolet light emitting element;
and the second ultraviolet light-emitting element is connected to the third bonding pad pair of the bracket and is connected with the first ultraviolet light-emitting element in parallel.
Preferably, the ultraviolet light emitting device further comprises a second transparent adhesive and a third transparent adhesive, the second transparent adhesive covers the second pad pair and the voltage stabilizing element, and the third transparent adhesive covers the third pad pair and the second ultraviolet light emitting element.
The utility model has the beneficial effects that: the bracket is provided with a first groove and a second groove which are spaced from each other in sequence from inside to outside at the periphery of a first bonding pad pair, and the second groove surrounds the periphery to form a circle. Through the support with the structure, the ultraviolet light-emitting device is formed through subsequent packaging, the first ultraviolet light-emitting element can be connected with the first bonding pad in a pair mode, glue dispensing is directly carried out on the inner area enclosed by the second groove, and the hemispherical first light-transmitting colloid is formed and covers the first ultraviolet light-emitting element. Support encapsulation's ultraviolet luminescent device more than utilization compares current box dam and optical window cooperation structure, and it need not to make the box dam, directly through first printing opacity colloid encapsulation, does not pass through the air total reflection, has reduced light loss, and it can also be at reduce cost when quick encapsulation in addition.
Drawings
FIG. 1 is a schematic structural diagram of a support for a light emitting device according to an embodiment of the present invention;
FIG. 2 is a schematic view of the rack of FIG. 1 after mounting electronic components thereon;
FIG. 3 is a schematic structural diagram of an ultraviolet light-emitting device according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of the UV light emitting device of FIG. 3 taken along line A-A;
the meaning of the reference symbols in the drawings is:
100-a scaffold; 1-a substrate; 11-a first surface; 12-a second surface; 13-a functional region; 2-a first pair of pads; 21-a first pad; 3-a first groove; 4-a second groove; 5-a second pad pair; 51-a second pad; 6-a third pad pair; 61-third point pad; 7-a third groove; 8-a fourth groove; 9-a first barrier; 10-a second barrier; 200-ultraviolet light emitting devices; 210-a first ultraviolet light emitting element; 220-first light-transmitting colloid; 230-a voltage stabilizing element; 240-second ultraviolet light emitting element; 250-second light-transmitting colloid; 260-third light-transmitting colloid.
Detailed Description
To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many 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 "secured 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.
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 invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
As shown in fig. 1 to fig. 2, which are schematic structural views of a support 100 for a light emitting device according to an embodiment of the present invention, the support 100 includes a substrate 1, a first pad pair 2 formed on the substrate 1, and a first groove 3 and a second groove 4. The substrate 1 can be prepared by adopting a green ceramic chip and a copper metal composite layer is sputtered on the surface of the green ceramic chip so as to achieve the purpose of metalizing the surface of the substrate 1; the substrate 1 comprises a first surface 11 and a second surface 12 which are oppositely arranged, and a functional area 13 is formed on the first surface 11; the first bonding pad pair 2 is arranged in the functional region 13 and comprises two first bonding pads 21 at intervals, the two first bonding pads 21 and the intervals between the two first bonding pads 21 surround to form a circle, and the intervals between the two first bonding pads 21 are communicated with the first groove 3; first recess 3 and second recess 4 are all from first surface 11 towards the sunken formation of second surface 12, and all enclose to locate first pad pair 2 outside, and wherein first recess 3 and second recess 4 are arranged from inside to outside in proper order to first pad pair 2, and first recess 3 and second recess 4 interval set up, and first recess 3 and second recess 4 all enclose and establish a week, enclose to close and form circularly. Of course, in practice, the two first pads 21 and the space between the two first pads 21 may enclose other shapes, such as a rectangle, a triangle, etc., and the first groove 3 may also enclose a rectangle, a triangle, etc.
According to the bracket 100, the first groove 3 is formed in the periphery of the first pad pair 2 in a surrounding mode, the first groove 3 is communicated with the two first pads 21 in the first pad pair 2 to isolate the two first pads 21, the second groove 4 is formed in the periphery of the first groove 3 in a surrounding mode at intervals, the second groove 4 is formed in a surrounding mode to form a circle, and through the arrangement of the second groove 4, in the subsequent packaging use process, the bracket 100 does not need to be provided with a dam and an optical window, glue dispensing can be achieved only in the inner area formed in the surrounding mode of the second groove 4 (namely glue dispensing is conducted from the interval between the second groove 4 and the first groove 3 to the inner area of the first pad pair 2), after curing, the hemispherical first transparent colloid 220 can be formed on the first pad pair 2, and rapid packaging can be achieved. First transparent colloid 220 forms the principle and lies in gluing the district through setting up the isolated point of second recess 4, after gluing in the inside of second recess 4, because glue has certain viscosity, when meetting second recess 4, glue can stop to spread towards second recess 4, and then spread in the region that second recess 4 encloses in advance, after setting up suitable some volume, can restrict glue and be full in the inside region that second recess 4 encloses with the hemispheroid, and guarantee that glue can not keep excessive filling second recess 4, the periphery of first transparent colloid 220 that forms after the solidification is just in time close to the coincidence of the inner periphery of first recess 3 with second recess 4.
In an alternative embodiment, the bracket 100 further includes a second pad pair 5 and a third pad pair 6 for mounting and connecting other components, and the second pad pair 5 and the third pad pair 6 are symmetrically distributed on two outer sides of the second groove 4 away from the first groove 3. Correspondingly, the bracket 100 further includes a third groove 7 and a fourth groove 8, the third groove 7 and the fourth groove 8 are both recessed from the first surface 11 toward the second surface 12, the third groove 7 is surrounded on the outside of the second pad pair 5, and the fourth groove 8 is surrounded on the outside of the third pad pair 6. Optionally, the second pad pair 5 includes two second pads 51 disposed at an interval, the two second pads 51 and the interval between the second pads 51 enclose a synthetic rectangle, the interval between the second pads 51 communicates with the third groove 7, optionally, the third pad pair 6 includes two third pads 61 disposed at an interval, the interval between the two third pads 61 and the third pad 61 encloses a synthetic rectangle, the interval between the third pads 61 communicates with the fourth groove 8, and the fourth groove 8 is used for isolating the two third pads 61 in the third pad pair 6. The fourth groove 8 serves to insulate the two third pads 61 of the third pad pair 6. Optionally, the third groove 7 and the fourth groove 8 are symmetrically arranged, and the third groove 7 and the fourth groove 8 respectively surround a circle to form a rectangle. Of course, the second pad pair 5 and the third pad pair 6 may have other shapes, and correspondingly, the third groove 7 and the fourth groove 8 may have other shapes, which is not limited in the drawings.
In an alternative embodiment, the support 100 further comprises a first stop 9 and a second stop 10, the first stop 9 and the second stop 10 extending from the first surface 11 towards the second surface 12, the first stop 9 being provided between the second recess 4 and the second pair of pads 5, the second stop 10 being provided between the second recess 4 and the third pair of pads 6. By the arrangement of the first barrier 9 and the second barrier 10, the influence (e.g., light influence) between the three sets of pad pairs of the first pad pair 2, the second pad pair 5, and the third pad pair 6 on the upper bonding element can be isolated, and the first barrier 9 and the second barrier 10 can also play a role in positioning the second pad pair 5 and the third pad pair 6. Alternatively, the first and second stoppers 9 and 10 are symmetrically disposed.
As shown in fig. 3 to 4, the present invention further provides an ultraviolet light emitting device 200, which includes the bracket 100, the first ultraviolet light emitting element 210, and the first light transmissive encapsulant 220. The first ultraviolet light emitting device 210 is a UVC LED chip, and two electrodes thereof are respectively soldered on the two first pads 21; the first transparent colloid 220 is a hemisphere, and completely covers the inner region surrounded by the second groove 4 and the first ultraviolet light emitting element 210. The first transparent adhesive 220 is also a lens while insulating and protecting the first ultraviolet light emitting element 210, and can enlarge the light emitting angle of the first ultraviolet light emitting element 210.
In an alternative embodiment, the ultraviolet light emitting device 200 further includes a voltage stabilizing element 230, which may be a zener diode, for stabilizing the voltage across the first ultraviolet light emitting element 210, connected to the two second pads 51 of the bracket 100 and connected in parallel with the first ultraviolet light emitting element 210; the uv light emitting device 200 further includes a second uv light emitting element 240, which is a UVA LED chip, generating visible light for prompting, and two electrodes of which are respectively soldered on the two third pads 61 and connected in parallel with the first uv light emitting element 210. The ultraviolet light emitting device 200 further includes a second light transmissive adhesive 250 and a third light transmissive adhesive 260, which do not have a requirement for a large light emitting angle between the voltage stabilizing element 230 and the second ultraviolet light emitting element 240, so that the second light transmissive adhesive 250 only needs to cover the second pad pair 5 and the voltage stabilizing element 230, and plays a role in isolating and protecting the second pad pair 5 and the voltage stabilizing element 230; the third transparent adhesive 260 covers the third pad pair 6 and the second uv-emitting device 240, so as to isolate and protect the third pad pair 6 and the second uv-emitting device 240. Because the first blocking portion 9 and the second blocking portion 10 are further provided in the present invention, the ultraviolet light emitted by the first ultraviolet light emitting element 210 can be isolated from irradiating the voltage stabilizing element 230 and the second ultraviolet light emitting element 240.
The ultraviolet light emitting device 200 of the present invention does not need to manufacture a dam, has a simple process, directly encapsulates the first ultraviolet light emitting element 210 through the first light transmissive colloid 220, does not undergo total reflection of air, reduces light loss, and can also reduce cost while rapidly encapsulating.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A support for a light-emitting element, the support comprising a substrate having a first surface and a second surface arranged opposite to each other, the first surface being provided with a functional region;
the first bonding pad pair is arranged in the functional area;
the first groove surrounds the first bonding pad to the outside, and is sunken from the first surface to the second surface;
and the second grooves are arranged outside the first grooves in an enclosing mode at intervals, the second grooves surround a circle to form a circle, and the second grooves are sunken from the first surface to the second surface.
2. The holder of claim 1,
the bracket further comprises a second bonding pad pair and a third bonding pad pair, and the second bonding pad pair and the third bonding pad pair are symmetrically distributed on two sides of the second groove far away from the first groove.
3. The cradle of claim 2,
the support is still including all certainly first surface orientation the sunken third recess of second surface and fourth recess, the third recess encloses to be located the second pad is external, the fourth recess encloses to be located the third pad is external.
4. The cradle of claim 3,
the support still includes all certainly first barrier portion and second barrier portion that first surface orientation deviates from the second surface extends, first barrier portion is located the second recess with between the second pad is right, the second barrier portion is located the second recess with between the third pad is right.
5. The holder of claim 1,
the first bonding pad pair comprises two first bonding pads arranged at intervals, the first bonding pads and the intervals between the first bonding pads enclose a circular shape, and the intervals between the first bonding pads are communicated with the first grooves.
6. The cradle of claim 3,
the second bonding pad pair comprises two second bonding pads arranged at intervals, the two second bonding pads and the interval between the two second bonding pads form a rectangle, and the interval between the two second bonding pads is communicated with the third groove;
and/or the third bonding pad pair comprises two third bonding pads arranged at intervals, the intervals between the two third bonding pads and the third bonding pads enclose a rectangle, and the intervals between the third bonding pads are communicated with the fourth groove.
7. The holder of claim 4,
the first blocking part and the second blocking part are symmetrically arranged, the third groove and the fourth groove are symmetrically arranged, and the third groove and the fourth groove are respectively surrounded by a circle to form a rectangle.
8. An ultraviolet light emitting device comprising a support for a light emitting element, said support comprising a support structure according to any one of claims 1 to 7;
the first ultraviolet light-emitting element is connected to the first bonding pad pair of the bracket;
the first light-transmitting colloid covers the inner area surrounded by the second groove of the bracket and the first ultraviolet light-emitting element, and is a hemisphere.
9. The ultraviolet light emitting device of claim 8,
the ultraviolet light-emitting device also comprises a voltage stabilizing element which is connected to the second bonding pad pair of the bracket and is connected with the first ultraviolet light-emitting element in parallel;
and the second ultraviolet light-emitting element is connected to the third bonding pad pair of the bracket and is connected with the first ultraviolet light-emitting element in parallel.
10. The ultraviolet light emitting device of claim 9,
the ultraviolet light-emitting device further comprises a second light-transmitting colloid and a third light-transmitting colloid, the second light-transmitting colloid covers the second bonding pad pair and the voltage stabilizing element, and the third light-transmitting colloid covers the third bonding pad pair and the second ultraviolet light-emitting element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121926740.XU CN215731762U (en) | 2021-08-17 | 2021-08-17 | Support for light-emitting element and ultraviolet light-emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121926740.XU CN215731762U (en) | 2021-08-17 | 2021-08-17 | Support for light-emitting element and ultraviolet light-emitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215731762U true CN215731762U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121926740.XU Active CN215731762U (en) | 2021-08-17 | 2021-08-17 | Support for light-emitting element and ultraviolet light-emitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215731762U (en) |
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2021
- 2021-08-17 CN CN202121926740.XU patent/CN215731762U/en active Active
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