CN211529968U

CN211529968U - Deep ultraviolet LED device

Info

Publication number: CN211529968U
Application number: CN202020106097.5U
Authority: CN
Inventors: 吕天刚; 王跃飞; 杨梓华; 吴乾
Original assignee: Hongli Zhihui Group Co Ltd
Current assignee: Hongli Zhihui Group Co Ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-09-18
Anticipated expiration: 2030-01-17

Abstract

The utility model provides a deep ultraviolet LED device, includes the bottom plate and establishes the more than one deep ultraviolet LED encapsulation on the bottom plate, deep ultraviolet LED encapsulation includes deep ultraviolet LED device, transparent, gland and establishes the annular bounding wall on the bottom plate, annular bounding wall forms the holding cavity with the bottom plate, deep ultraviolet LED device is established in the holding cavity, the gland includes annular connecting portion and establishes the clamping ring at annular connecting portion top, annular connecting portion cover is outside annular bounding wall, and annular connecting portion fix or fix on the bottom plate through connecting piece with annular bounding wall threaded connection, the clamping ring stretches into just compress tightly on transparent in the holding cavity, transparent, annular bounding wall and bottom plate enclose into closed cavity. The utility model discloses a gland encapsulates the deep ultraviolet LED device with the cooperation of base, and this simple structure removes complicated welding process from, reduces the production degree of difficulty to improve production efficiency.

Description

Deep ultraviolet LED device

Technical Field

The utility model belongs to the technical field of the LED and specifically relates to a dark ultraviolet LED device.

Background

Because the deep ultraviolet LED has short wavelength and strong energy, the material performance is seriously deteriorated, and therefore, extremely high requirements are put on the packaging technology and the packaging material. However, in the conventional deep ultraviolet LED packaging technology, for example, in the white LED packaging process disclosed in patent application No. 201310403054.8, due to the existence of certain defects in the material of the adhesive layer, UV light is easily absorbed by the adhesive layer, so that the adhesive layer is easily yellow and aged, and further, the deep ultraviolet LED has many defects such as low luminous power, poor heat dissipation, low reliability, and short service life.

The existing inorganic packaging technology has the problems of low production efficiency, low yield, high cost and difficult large-scale production. For example, application No. CN201611256165 discloses an ultraviolet LED packaging method, which includes providing a boss around a substrate, providing a stepped supporting surface on the upper surface of the boss for placing a quartz lens, coating an adhesive on a contact gap between the quartz lens and the stepped supporting surface, and fixing by reflow soldering, parallel sealing or laser welding. For another example, application No. CN201611228510 discloses a deep ultraviolet LED package device and a manufacturing method thereof, wherein a first metal eutectic bonding layer is manufactured on an upper surface of a metal substrate, an optical element is fixed on the metal substrate in an eutectic bond manner through the first metal eutectic bonding layer, and the optical element of the above process needs to be fixed on the metal substrate in the eutectic bond manner, so that the process cost is increased, the production difficulty is also increased, and the production efficiency and the yield are reduced; in addition, when the chip in the package is damaged and needs to be replaced or maintained, the soldered package needs to be removed, and the removal process is relatively difficult, which is not favorable for assembly, maintenance and replacement in the application process.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a deep ultraviolet LED device, which reduces the production difficulty and improves the production efficiency; the assembly, the maintenance and the replacement in the application process are convenient.

In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides a deep ultraviolet LED device, includes the bottom plate and establishes the more than one deep ultraviolet LED encapsulation on the bottom plate, deep ultraviolet LED encapsulation includes deep ultraviolet LED device, transparent, gland and establishes the annular bounding wall on the bottom plate, annular bounding wall forms the holding cavity with the bottom plate, deep ultraviolet LED device is established in the holding cavity, the gland includes annular connecting portion and establishes the clamping ring at annular connecting portion top, annular connecting portion cover is outside annular bounding wall, and annular connecting portion fix or fix on the bottom plate through connecting piece with annular bounding wall threaded connection, the clamping ring stretches into just compress tightly on transparent in the holding cavity, transparent, annular bounding wall and bottom plate enclose into closed cavity. The utility model discloses a gland encapsulates the deep ultraviolet LED device with the cooperation of base, and this simple structure removes complicated welding process from, reduces the production degree of difficulty to improve production efficiency.

As an improvement, the deep ultraviolet LED device comprises a support, a reflecting cup arranged on the support, a chip arranged in the reflecting cup and a first electrode arranged at the bottom of the support; and a second electrode corresponding to the first electrode is arranged in the accommodating cavity on the bottom plate.

As an improvement, the support is a square support, the first electrodes are respectively arranged on two sides of the bottom of the support, a heat sink is arranged in the middle of the bottom of the support, and a heat conductor corresponding to the heat sink is arranged on the bottom plate.

As an improvement, the support is a circular support, and the first electrodes at the bottom of the support are respectively a circular electrode positioned in the middle and an annular electrode positioned on the periphery.

As an improvement, the deep ultraviolet LED device comprises a substrate and a plurality of chips arranged on the substrate, and the substrate is fixed on a bottom plate through bolts or fasteners.

As an improvement, the deep ultraviolet LED device is a chip which is fixedly arranged on the bottom plate.

As an improvement, the transparent part is a glass part, a modified plastic part or an optical lens.

As an improvement, the edge of the light-emitting surface of the transparent part is a plane, and the pressing ring is pressed on the edge plane.

As the improvement, the middle part of the transparent piece is provided with an optical bulge.

As an improvement, the surface of the transparent piece is provided with an optical coating.

As an improvement, the inner wall of the annular connecting portion is provided with an internal thread, the outer wall of the annular enclosing plate is provided with an external thread, and the annular connecting portion and the annular enclosing plate form threaded connection.

As an improvement, the lower end of the annular connecting part is provided with a connecting lug, and the connecting piece fixes the annular connecting part on the bottom plate through the connecting lug.

As an improvement, the connecting piece is a bolt or a buckle.

As an improvement, the top of the annular connecting part is connected with the pressure ring through a connecting ring; the cross-section of clamping ring is triangle-shaped, and the medial surface of clamping ring forms conical plane of reflection, and the bottom surface of clamping ring forms the pressfitting face, forms the ring channel that supplies the top of annular bounding wall to stretch into between the lateral surface of clamping ring, annular connecting portion and the go-between.

As an improvement, a first sealing ring is arranged between the pressing ring and the transparent piece, and a second sealing ring is arranged between the lower end of the annular connecting portion and the bottom plate.

As an improvement, a plurality of deep ultraviolet LED packages distributed in an array are arranged on the bottom plate.

Compared with the prior art, the utility model the beneficial effect who brings is:

the utility model discloses a gland encapsulates the deep ultraviolet LED device with the cooperation of base, and this simple structure only needs to fix the gland on the bottom plate through the fast mode through manual gland of screwing or with the gland and can realize the encapsulation, removes complicated welding process from, reduces the production degree of difficulty to improve production efficiency, the application process equipment of being convenient for is changed with the maintenance.

Drawings

FIG. 1 is a sectional view of example 1.

FIG. 2 is an exploded view of the embodiment 1.

FIG. 3 is a sectional exploded view of embodiment 1.

FIG. 4 is a sectional view of embodiment 2.

FIG. 5 is an exploded view of example 2.

FIG. 6 is a sectional exploded view of embodiment 2.

FIG. 7 is a sectional view of embodiment 3.

FIG. 8 is a sectional view of embodiment 4.

Fig. 9 is a schematic view of the gland being bolted to the base plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Example 1

As shown in fig. 1 and 2, a deep ultraviolet LED device includes a bottom plate 42 and more than one deep ultraviolet LED package disposed on the bottom plate 42, and one deep ultraviolet LED package may be disposed or a plurality of deep ultraviolet LED packages distributed in a matrix may be disposed according to the size of an irradiated area.

The deep ultraviolet LED package comprises a deep ultraviolet LED device 3, a transparent part 2, a gland 1 and an annular coaming 41 arranged on a bottom plate 42.

As shown in fig. 3, the annular enclosure 41 and the bottom plate 42 form the base 4, and the annular enclosure 41 and the bottom plate 42 enclose an accommodating cavity 43.

As shown in fig. 3, the deep ultraviolet LED device 3 is disposed in the accommodating cavity 43, and the deep ultraviolet LED device 3 includes a square bracket 31, a reflective cup 35 disposed on the bracket 31, a chip 32 disposed in the reflective cup 35, and a first electrode 33 disposed at the bottom of the bracket 31. Any number of chips 32 may be arranged in the same rack 31 and arranged in any shape; the four corners of the square bracket 31 can be abutted against the inner wall surface of the annular enclosing plate 41, so that the purpose of positioning the bracket 31 is achieved; a filler may also be placed in the gap between the holder 31 and the inner wall of the annular shroud 41 to position the holder 31. The first electrodes 33 are respectively arranged on two sides of the bottom of the bracket 31 to respectively form a positive electrode and a negative electrode of the deep ultraviolet LED device 3, the heat sink 34 is arranged in the middle of the bottom of the bracket 31, gold plating is respectively arranged on the surfaces of the first electrodes 33 and the heat sink 34, the first electrodes 33 and the heat sink 34 are rectangular, the length of the first electrodes 33 and the length of the heat sink 34 are equivalent to the width of the bracket 31, and the contact area of the first electrodes 33 and the heat sink 34 is increased as much as possible. A second electrode 44 corresponding to the first electrode 33 and a heat conductor 45 corresponding to the heat sink 34 are arranged in the accommodating cavity 43 on the bottom plate 42, when the deep ultraviolet LED device 3 is placed in the accommodating cavity 43, the first electrode 33 contacts with the second electrode 44, and the heat sink 34 contacts with the heat conductor 45, so that the deep ultraviolet LED device 3 can conduct electricity and heat through the base 4; any number of electrodes can be designed on the bottom plate as long as the electrodes are divided into a positive electrode and a negative electrode, and the shape of the electrodes can be any as long as the electrodes are in electrical contact with the chip electrodes.

As shown in fig. 3, the transparent member 2 is a glass member, a modified plastic member or an optical lens. The glass piece may be ordinary glass or quartz glass, and the glass piece may be without optical structures and only for encapsulation. The modified plastic part can be fluororesin, and the fluororesin can be made into various optical elements. The transparent member of this embodiment is an optical lens, the edge 22 of the light-emitting surface of the transparent member 2 is a plane, and the middle portion of the transparent member 2 is provided with an optical protrusion 21 for mainly distributing light to the deep ultraviolet LED device 3. The transparent member 2 may be a fresnel lens or a convex lens, and the number of lenses is not limited, and may be a single lens or a combination of a plurality of lenses. In order to improve the light transmittance and reduce the reflection of the lens, an optical coating can be formed on the surface of the transparent piece.

As shown in fig. 3, the gland 1 is a metal member, and includes an annular connecting portion 12 and a pressing ring 11 disposed at the top of the annular connecting portion 12, and the top of the annular connecting portion 12 is connected to the pressing ring 11 through a connecting ring. The section of the pressing ring 11 is triangular, the inner side surface of the pressing ring 11 forms a conical reflecting surface 111, the bottom surface of the pressing ring 11 forms a pressing surface 112, and an annular groove 13 for the top of the annular enclosing plate 41 to extend into is formed among the outer side surface of the pressing ring 11, the annular connecting part 12 and the connecting ring; the pressing ring 11 extends into the accommodating cavity 43 and is tightly pressed on the transparent part 2, and the transparent part 2, the annular enclosing plate 41 and the bottom plate 42 enclose an enclosed cavity. A first sealing ring 5 is arranged between the pressing surface 112 of the pressing ring 11 and the transparent part 2, a second sealing ring 6 is arranged between the lower end of the annular connecting part 12 and the bottom plate 42, and external water vapor can be prevented from entering the accommodating cavity 43 by the sealing rings. Gland 1 is fixed through annular connecting portion 12, and the annular connecting portion 12 of this embodiment passes through threaded connection with annular bounding wall 41, the inner wall of annular connecting portion 12 is equipped with the internal thread, the outer wall of annular bounding wall 41 is equipped with the external screw thread, during the installation, will the cooperation can be realized to annular connecting portion 12 cover outside annular bounding wall 41 and manual rotation gland. In addition, as shown in fig. 9, the annular connecting portion 12 may also be fixed on the bottom plate 42 by other quick members, for example, the lower end of the annular connecting portion 12 is provided with a connecting lug 14, and the connecting member 7 fixes the annular connecting portion 12 on the bottom plate 42 by the connecting lug 14; the connecting piece 7 is a bolt or a buckle, when the connecting piece is a bolt, a threaded hole needs to be formed in the position corresponding to the bottom plate 42, when the connecting piece is a buckle, a clamping groove needs to be formed in the position corresponding to the bottom plate 42, during installation, the annular connecting portion is sleeved on the annular enclosing plate, and then the connecting piece is used for fixing the annular enclosing plate.

The utility model discloses a gland 1 encapsulates dark ultraviolet LED device 3 with the cooperation of base 4, and this simple structure only needs to realize the encapsulation through manual gland 1 of screwing, removes complicated welding process from, reduces the production degree of difficulty to improve production efficiency, the application of being convenient for is assembled and is maintained the change.

Example 2

As shown in fig. 4 and 5, the deep ultraviolet LED device includes a bottom plate 42 and more than one deep ultraviolet LED package disposed on the bottom plate 42, and one deep ultraviolet LED package may be disposed or a plurality of deep ultraviolet LED packages distributed in a matrix may be disposed according to the size of the irradiated area.

As shown in fig. 6, the deep ultraviolet LED device 3 is disposed in the accommodating cavity 43, and the deep ultraviolet LED device 3 includes a circular support 31, a reflective cup 35 disposed on the support 31, a chip 32 disposed in the reflective cup 35, and a first electrode 33 disposed at the bottom of the support 31. Any number of chips 32 may be arranged in the same rack 31 and arranged in any shape; the outer diameter of the circular support 31 is slightly smaller than the inner diameter of the annular enclosing plate 41, so that the deep ultraviolet LED device 3 can be placed in an accommodating cavity 43 enclosed by the annular enclosing plate 41; the first electrode 33 at the bottom of the bracket 31 is a circular electrode at the middle and a ring electrode at the periphery, and the surfaces of the first electrode 33 and the heat sink 34 are plated with gold. The bottom plate 42 is provided with a second electrode 44 corresponding to the first electrode 33 in the accommodating cavity 43, and when the deep ultraviolet LED device 3 is placed in the accommodating cavity 43, the first electrode 33 contacts with the second electrode 44, so that the deep ultraviolet LED device 3 can conduct electricity through the base 4. Any number of electrodes may be designed on the bottom plate 42 as long as the electrodes are divided into positive and negative electrodes, and the shape of the electrodes may be any as long as the electrodes are in electrical contact with the chip electrodes.

As shown in fig. 6, the transparent member 2 is a glass member, a modified plastic member or an optical lens. The glass piece may be ordinary glass or quartz glass, and the glass piece may be without optical structures and only for encapsulation. The modified plastic part can be fluororesin, and the fluororesin can be made into various optical elements. The transparent member of this embodiment is an optical lens, the edge 22 of the light-emitting surface of the transparent member 2 is a plane, and the middle portion of the transparent member 2 is provided with an optical protrusion 21 for mainly distributing light to the deep ultraviolet LED device 3. The transparent member 2 may be a fresnel lens or a convex lens, and the number of lenses is not limited, and may be a single lens or a combination of a plurality of lenses. In order to improve the light transmittance and reduce the reflection of the lens, an optical coating can be formed on the surface of the transparent piece.

As shown in fig. 6, the gland 1 is a metal member, and includes an annular connecting portion 12 and a pressing ring 11 disposed on the top of the annular connecting portion 12, and the top of the annular connecting portion 12 is connected to the pressing ring 11 through a connecting ring. The section of the pressing ring 11 is triangular, the inner side surface of the pressing ring 11 forms a conical reflecting surface 111, the bottom surface of the pressing ring 11 forms a pressing surface 112, and an annular groove 13 for the top of the annular enclosing plate 41 to extend into is formed among the outer side surface of the pressing ring 11, the annular connecting part 12 and the connecting ring; the pressing ring 11 extends into the accommodating cavity 43 and is tightly pressed on the transparent part 2, and the transparent part 2, the annular enclosing plate 41 and the bottom plate 42 enclose an enclosed cavity. A first sealing ring 5 is arranged between the pressing surface 112 of the pressing ring 11 and the transparent part 2, a second sealing ring 6 is arranged between the lower end of the annular connecting part 12 and the bottom plate 42, and external water vapor can be prevented from entering the accommodating cavity 43 by the sealing rings. Gland 1 is fixed through annular connecting portion 12, and the annular connecting portion 12 of this embodiment passes through threaded connection with annular bounding wall 41, the inner wall of annular connecting portion 12 is equipped with the internal thread, the outer wall of annular bounding wall 41 is equipped with the external screw thread, during the installation, will the cooperation can be realized to annular connecting portion 12 cover outside annular bounding wall 41 and manual rotation gland. In addition, the annular connecting portion 12 can also be fixed on the bottom plate 42 by other quick members, for example, the lower end of the annular connecting portion 12 is provided with a connecting lug 121, and the connecting member fixes the annular connecting portion on the bottom plate 42 by the connecting lug; the connecting piece is bolt or buckle, and when the connecting piece was the bolt, the position that bottom plate 42 corresponds need set up the screw hole, and when the connecting piece was the buckle, the position that bottom plate 42 corresponds need set up the draw-in groove, during the installation, overlaps annular connecting portion on annular bounding wall, then utilize the connecting piece to fix it can.

Example 3

The difference from example 1 is: as shown in fig. 7, the deep ultraviolet LED device includes a substrate 36 and a plurality of chips 32 disposed on the substrate, the substrate 36 is fixed on a bottom plate by bolts or fasteners, and a first electrode is disposed at the bottom of the substrate and is matched with a second electrode on the bottom plate. Gland 1 is the metalwork, and it includes annular connecting portion 12 and establishes the clamping ring 11 at annular connecting portion 12 top, and the inner wall of annular connecting portion is equipped with the boss that is used for supporting transparent, during the installation, places transparent on the boss, then the locking gland with the edge of transparent compress tightly on the boss can, transparent, bottom plate and annular bounding wall enclose into the closed cavity, the setting of deep ultraviolet LED device is in the closed cavity.

Example 4

The difference from example 1 is: as shown in fig. 8, the deep ultraviolet LED device is a chip 32, and a plurality of chips 32 are fixed on a bottom plate 42, and the chips may be connected by gold wires or wires. Gland 1 is the metalwork, and it includes annular connecting portion 12 and establishes the clamping ring 11 at annular connecting portion 12 top, and the inner wall of annular connecting portion is equipped with the boss that is used for supporting transparent, during the installation, places transparent on the boss, then the locking gland with the edge of transparent compress tightly on the boss can, transparent, bottom plate and annular bounding wall enclose into the closed cavity, the setting of deep ultraviolet LED device is in the closed cavity.

Claims

1. A deep ultraviolet LED device, characterized in that: including the bottom plate and establish the more than one dark ultraviolet LED encapsulation on the bottom plate, dark ultraviolet LED encapsulation includes dark ultraviolet LED device, transparent, gland and establishes the annular bounding wall on the bottom plate, annular bounding wall forms the holding cavity with the bottom plate, dark ultraviolet LED device is established in the holding cavity, the gland includes annular connecting portion and establishes the clamping ring at annular connecting portion top, annular connecting portion cover is outside the annular bounding wall, and annular connecting portion fix or fix on the bottom plate through connecting piece with annular bounding wall threaded connection, the clamping ring stretches into just compress tightly on the transparent in the holding cavity, transparent, annular bounding wall and bottom plate enclose into closed cavity.

2. The deep ultraviolet LED apparatus of claim 1, wherein: the deep ultraviolet LED device comprises a support, a reflecting cup arranged on the support, a chip arranged in the reflecting cup and a first electrode arranged at the bottom of the support; and a second electrode corresponding to the first electrode is arranged in the accommodating cavity on the bottom plate.

3. The deep ultraviolet LED apparatus of claim 2, wherein: the support is a square support, the first electrodes are respectively arranged on two sides of the bottom of the support, a heat sink is arranged in the middle of the bottom of the support, and a heat conductor corresponding to the heat sink is arranged on the bottom plate.

4. The deep ultraviolet LED apparatus of claim 2, wherein: the support is a circular support, and the first electrode at the bottom of the support is a circular electrode positioned in the middle and an annular electrode positioned on the periphery respectively.

5. The deep ultraviolet LED apparatus of claim 1, wherein: the deep ultraviolet LED device comprises a substrate and a plurality of chips arranged on the substrate, and the substrate is fixed on the bottom plate through bolts or fasteners.

6. The deep ultraviolet LED apparatus of claim 1, wherein: the deep ultraviolet LED device is a chip which is fixedly arranged on the bottom plate.

7. The deep ultraviolet LED apparatus of claim 1, wherein: the transparent part is a glass part, a modified plastic part or an optical lens.

8. The deep ultraviolet LED apparatus of claim 1, wherein: the edge of the light-emitting surface of the transparent part is a plane, and the pressing ring is pressed on the edge plane.

9. The deep ultraviolet LED apparatus of claim 8, wherein: the middle part of the transparent part is provided with an optical bulge.

10. The deep ultraviolet LED apparatus of claim 1, wherein: and the surface of the transparent piece is provided with an optical coating.

11. The deep ultraviolet LED apparatus of claim 1, wherein: the inner wall of the annular connecting portion is provided with an internal thread, the outer wall of the annular enclosing plate is provided with an external thread, and the annular connecting portion and the annular enclosing plate are in threaded connection.

12. The deep ultraviolet LED apparatus of claim 1, wherein: the lower end of the annular connecting part is provided with a connecting lug, and the connecting piece fixes the annular connecting part on the bottom plate through the connecting lug.

13. The deep ultraviolet LED apparatus of claim 11, wherein: the connecting piece is a bolt or a buckle.

14. The deep ultraviolet LED apparatus of claim 1, wherein: the top of the annular connecting part is connected with the pressure ring through a connecting ring; the cross-section of clamping ring is triangle-shaped, and the medial surface of clamping ring forms conical plane of reflection, and the bottom surface of clamping ring forms the pressfitting face, forms the ring channel that supplies the top of annular bounding wall to stretch into between the lateral surface of clamping ring, annular connecting portion and the go-between.

15. The deep ultraviolet LED apparatus of claim 1, wherein: a first sealing ring is arranged between the pressing ring and the transparent piece, and a second sealing ring is arranged between the lower end of the annular connecting portion and the bottom plate.

16. The deep ultraviolet LED apparatus of claim 1, wherein: and the bottom plate is provided with a plurality of deep ultraviolet LED packages distributed in an array manner.