CN106051505A - Packaging structure of combined type LED modulator tube - Google Patents
Packaging structure of combined type LED modulator tube Download PDFInfo
- Publication number
- CN106051505A CN106051505A CN201610562296.5A CN201610562296A CN106051505A CN 106051505 A CN106051505 A CN 106051505A CN 201610562296 A CN201610562296 A CN 201610562296A CN 106051505 A CN106051505 A CN 106051505A
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- China
- Prior art keywords
- fluorescent tube
- layer
- electrode
- shell
- led
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000004806 packaging method and process Methods 0.000 title abstract 3
- 239000011324 bead Substances 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims description 58
- 239000012790 adhesive layer Substances 0.000 claims description 21
- 229910052594 sapphire Inorganic materials 0.000 claims description 13
- 239000010980 sapphire Substances 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000007373 indentation Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 241001062009 Indigofera Species 0.000 claims 1
- 239000010437 gem Substances 0.000 claims 1
- 229910001751 gemstone Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 2
- 241000258971 Brachiopoda Species 0.000 abstract 4
- 238000003780 insertion Methods 0.000 abstract 3
- 230000037431 insertion Effects 0.000 abstract 3
- 238000003466 welding Methods 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 9
- 238000005286 illumination Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/0015—Fastening arrangements intended to retain light sources
- F21V19/002—Fastening arrangements intended to retain light sources the fastening means engaging the encapsulation or the packaging of the semiconductor device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/505—Wavelength conversion elements characterised by the shape, e.g. plate or foil
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Planar Illumination Modules (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The invention discloses a packaging structure of a combined type LED modulator tube. The packaging structure comprises a detachable modulator tube shell. Lamp shell clamping sleeves capable of locking the two ends of the modulator tube shell after rotating by a certain angle are arranged at the two ends of the modulator tube shell correspondingly. Detachable electrode blocks are connected to the end portions of the two lamp shell clamping sleeves in an insertion manner correspondingly. An LED lamp panel is arranged in a cavity of the modulator tube shell. Multiple LED lamp beads capable of emitting light at multiple angles are arranged on the LED lamp panel at intervals. The lamp shell clamping sleeves capable of locking the two ends of the modulator tube shell after rotating by a certain angle are arranged at the two ends of the modulator tube shell correspondingly, the detachable electrode blocks are connected to the end portions of the two lamp shell clamping sleeves in the insertion manner correspondingly, screw locking is not needed in the assembling process of the whole LED modulator tube, connection and fixation can be achieved only through manners of clamping connection and the like, electric connection of the LED lamp panel is achieved by connecting the electrode blocks at the two ends in a USB insertion connection manner, and the complex step of welding and fixing wires on circuit boards and other complex steps are not needed.
Description
Technical field
The present invention relates to illuminations, particularly to the encapsulating structure of a kind of combined LED fluorescent tube.
Background technology
LED light emitting diode is known as the most efficient artificial lighting engineering by the whole world.There is life-span length, energy consumption low etc. excellent
Point, along with the development of LED technology, the performance of LED light source is also become better and better, but existing LED light-emitting diode lamp tube is in group
During dress, light-emitting device and circuit arrangement be set with heat abstractor group together with, and utilize conductor wire to connect light-emitting device and circuit to fill
Put and electrode on end cap is formed and is electrically conducted.In terms of mechanism, then it is to use fixation kit, fixes above-mentioned group such as screw etc.
Part forms LED lamp tube.Existing LED lamp tube is many because of its component, not only causes the complexity in manufacture to increase, simultaneously also generation group
Load onto take a lot of work, time-consuming, the production cost causing entirety is too high.Many as well as component, different series fluorescent tube product it
Between component compatibility low, the difficulty increase in design also can be made indirectly to increase production cost, indirectly reduce automated production
Probability.
Summary of the invention
It is an object of the invention to the drawbacks described above for prior art, it is provided that a kind of simple in construction, cost of manufacture are low, assembling
The encapsulating structure of combined LED fluorescent tube easily.
For solving the drawbacks described above of prior art, present invention provide the technical scheme that the envelope of a kind of combined LED fluorescent tube
Assembling structure, including demountable fluorescent tube housing, being respectively arranged at two ends with and can rotate to an angle of described fluorescent tube housing
The lamp housing chuck at fluorescent tube housing two ends described in finger lock, it is dismountable that the end of two described lamp housing chucks is all plugged with one
Electrode block, is provided with a LED lamp panel in the cavity of described fluorescent tube housing, described LED lamp panel is interval with multiple can be with multi-angle
Luminous LED lamp bead.
As a kind of improvement of the encapsulating structure of combined LED fluorescent tube of the present invention, described lamp housing chuck has two sets
Ring, two collars are respectively the fluorescent tube collar and the electrode block collar, the sidewall edge of the described fluorescent tube collar be provided with two or two with
On clamping breach, described clamping breach is L-shaped, the sidewall of the described electrode block collar is interval with two or more
Raised line, big up and small down trapezoidal of the cross section of described raised line.
As a kind of improvement of the encapsulating structure of combined LED fluorescent tube of the present invention, described electrode block includes electrode end cap, institute
The lateral surface stating electrode end cap is provided with two electrode tubes that can snap in lamp holder jack, and the medial surface of described electrode end cap is provided with electricity
Pole joint chair, described electrode joint chair is provided with a USB public plug, and the position of the corresponding described raised line in the edge of described electrode end cap is provided with
Groove, the cross section of described groove is trapezoidal.
As a kind of improvement of the encapsulating structure of combined LED fluorescent tube of the present invention, being respectively arranged at two ends with of described LED lamp panel
USB female seat for described USB public plug grafting.
As a kind of improvement of the encapsulating structure of combined LED fluorescent tube of the present invention, described fluorescent tube housing include left shell half and
Right half-shell, the both sides of the edge of described left shell half are equipped with an edge taken the shape of the letter U, and the two ends of described left shell half and right half-shell are respectively
Being provided with the projection for snapping in described clamping breach, the both sides of the edge of described right half-shell are respectively equipped with the card that can be inserted into described edge
When block, described left shell half and right half-shell assemble, described in the card block alignment in described right half-shell, edge inserts, until left shell half and the right side
The two ends alignment of half-shell, described left shell half and right half-shell are all creamy white.
As a kind of improvement of the encapsulating structure of combined LED fluorescent tube of the present invention, when described LED lamp panel assembles, penetrate institute
Stating in the cavity of fluorescent tube housing, the USB public plug of the USB female seat opposite ends at LED lamp panel two ends inserts, and revolving light housing presss from both sides
Set, makes clamping breach connect and fix with projection.
As a kind of improvement of the encapsulating structure of combined LED fluorescent tube of the present invention, described LED lamp bead includes LED chip, institute
Upper plane and four sides of stating LED chip are all enclosed with one layer of fluorescent adhesive layer, and described fluorescent adhesive layer is positioned at described LED chip
Bottom margin position is provided with the block that level bends inwards.
As a kind of improvement of the encapsulating structure of combined LED fluorescent tube of the present invention, described fluorescent adhesive layer is to have AB glue component
Form with fluorescent material component.
As a kind of improvement of the encapsulating structure of combined LED fluorescent tube of the present invention, described LED chip include sapphire layer,
Schottky junction layer, multiple quantum well layer and ohmic electrode layer, described schottky junction layer is at described sapphire layer and MQW
Between Ceng, described multiple quantum well layer between schottky junction layer and ohmic electrode layer, described ohmic electrode layer
Bottom is provided with P electrode, and the bottom of described P electrode is provided with the first salient point, described sapphire layer and the side of described schottky junction layer
Bottom is provided with a breach, is provided with N electrode in described indentation, there, and the bottom of described N electrode is provided with the second salient point.
As a kind of improvement of the encapsulating structure of combined LED fluorescent tube of the present invention, described sapphire layer, schottky junction layer,
Multiple quantum well layer and ohmic electrode layer all take the shape of the letter U；The thickness of described fluorescent adhesive layer is 0.05mm～0.15mm；Described fluorescence
Glue-line uses some glue molding press to be pressed on upper plane and four sides of described LED chip.
Compared with prior art, the invention have the advantage that the fluorescent tube housing that the present invention uses is respectively arranged at two ends with one
Can be rotated to an angle the lamp housing chuck at finger lock fluorescent tube housing two ends, and the end of two lamp housing chucks is all plugged with can
The electrode block of dismounting, whole LED lamp tube need not screw locking during assembling, it is only necessary to by modes such as clampings
Connecting fixing, the electric connection of LED lamp panel is also to connect two end electrodes block by the way of USB grafting, it is not necessary to circuit board
On electric wire carry out tedious steps such as being welded and fixed.The present invention additionally uses the LED lamp bead with multifaceted light-emitting, on light-emitting area has
Light-emitting area and four side light-emitting areas, it is not necessary to reset LED lamp bead four sides, this multifaceted light-emitting knot of this product
Structure, can significantly promote the illumination range of LED.Effectively solving existing LED lamp bead illumination range narrow, package assembly is complicated
Shortcoming.This product additionally uses fluorescent adhesive layer, and fluorescent adhesive layer uses the mode one press-in LED chip of some glue molding press punching press
Upper plane and four sides on, until fluorescent adhesive layer cool and solidify after shape.
Accompanying drawing explanation
With detailed description of the invention, the present invention and useful technique effect thereof are made further details of the most with reference to the accompanying drawings
Describe, wherein:
Fig. 1 is that the present invention splits structural representation.
Fig. 2 is structure for amplifying schematic diagram at A in Fig. 1.
Fig. 3 is LED lamp bead structural representation.
Reference title: 1, fluorescent tube housing 2, lamp housing chuck 3, electrode block 4, LED lamp panel 5, LED lamp bead 6, USB mother
Seat 11, left shell half 12, right half-shell 13, edge 14, projection 15, fixture block 21, the fluorescent tube collar 22, the electrode block collar 23, raised line 24, card
Connect breach 31, electrode end cap 32, electrode tube 33, electrode joint chair 34, USB public plug 35, groove 51, LED chip 52, fluorescent adhesive layer
53, block 511, sapphire layer 512, schottky junction layer 513, multiple quantum well layer 514, ohmic electrode layer 515, P electrode
516, the first salient point 517, N electrode the 518, second salient point.
Detailed description of the invention
The invention will be further described with specific embodiment the most with reference to the accompanying drawings, but embodiments of the present invention not office
It is limited to this.
As depicted in figs. 1 and 2, the encapsulating structure of a kind of combined LED fluorescent tube, including demountable fluorescent tube housing 1, lamp
The lamp housing chuck 2 being respectively arranged at two ends with finger lock fluorescent tube housing 1 two ends that can rotate to an angle of tube shell 1, two
The end of individual lamp housing chuck 2 is all plugged with a dismountable electrode block 3, is provided with a LED lamp panel 4 in the cavity of fluorescent tube housing 1,
Be interval with in LED lamp panel 4 multiple can be with the luminous LED lamp bead 5 of multi-angle.
Preferably, lamp housing chuck 2 has two collars, and two collars are respectively the fluorescent tube collar 21 and the electrode block collar
22, the sidewall edge of the fluorescent tube collar 21 is provided with two or more clamping breach 24, and clamping breach 24 is L-shaped, electrode block
Two or more raised line 23 it is interval with, big up and small down trapezoidal of the cross section of raised line 23 on the sidewall of the collar 22.
Preferably, electrode block 3 include electrode end cap 31, the lateral surface of electrode end cap 31 be provided with two can snap in lamp holder insert
The electrode tube 32 in hole, the medial surface of electrode end cap 31 is provided with electrode joint chair 33, and electrode joint chair 33 is provided with a USB public plug 34,
The position of the edge correspondence raised line 25 of electrode end cap 31 is provided with groove 35, and the cross section of groove 35 is trapezoidal.
Preferably, the USB female seat 6 being respectively arranged at two ends with confession USB public plug 34 grafting of LED lamp panel 4.
Preferably, fluorescent tube housing 1 includes left shell half 11 and right half-shell 12, the both sides of the edge of left shell half 11 be equipped with one in
The projection 14 being respectively arranged at two ends with for snapping in clamping breach 24 of the edge 13 of U-shaped, left shell half 11 and right half-shell 12, right half-shell
The both sides of the edge of 12 are respectively equipped with the fixture block 15 that can be inserted into edge 13, left shell half 11 and right half-shell 12 when assembling, in right half-shell 12
Fixture block 15 be directed at edge 13 and insert, until the two ends alignment of left shell half 11 and right half-shell 12, left shell half 11 and right half-shell 12 are equal
It is creamy white, the mildness of LED can be strengthened.
Preferably, when LED lamp panel 4 assembles, penetrating in the cavity of fluorescent tube housing 1, the USB female seat 6 at LED lamp panel 4 two ends is right
The USB public plug 34 answering two ends inserts, revolving light housing chuck 2, makes clamping breach 24 connect and fix with projection 14.
Preferably, LED lamp bead 5 includes that LED chip 51, the upper plane of LED chip 51 and four sides are all enclosed with one layer
Fluorescent adhesive layer 52, fluorescent adhesive layer 52 is positioned at the bottom margin position of LED chip and is provided with the block 53 that level bends inwards.
Preferably, fluorescent adhesive layer 52 is made up of AB glue component and fluorescent material component.AB glue component and fluorescent material component are pressed
Be mixed into colloid according to certain ratio, then by the way of a glue molding press, colloid is pressed into LED chip 51 upper plane and
On four sides, shape after cooling is fixing.
Preferably, LED chip 51 includes sapphire layer 511, schottky junction layer 512, multiple quantum well layer 513 and Ohmic contact
Electrode layer 514, schottky junction layer 512 is between sapphire layer 511 and multiple quantum well layer 513, and multiple quantum well layer 513 is positioned at Xiao Te
Between base junction layer 512 and ohmic electrode layer 514, the bottom of ohmic electrode layer 514 is provided with P electrode 515, P electrode 15
Bottom be provided with a side bottom of the first salient point 516, sapphire layer 511 and schottky junction layer 512 and be provided with a breach, in indentation, there
Being provided with N electrode 517, the bottom of N electrode 517 is provided with the second salient point 518.
Preferably, sapphire layer 511, schottky junction layer 512, multiple quantum well layer 513 and ohmic electrode layer 514 all in
U-shaped.U-shaped sapphire layer 511 can increase light-emitting area from five surface launching light sources.
Preferably, the thickness of fluorescent adhesive layer 52 is 0.05mm～0.15mm.
Preferably, fluorescent adhesive layer 52 uses some glue molding press to be pressed on upper plane and four sides of LED chip 51.Five
Face is luminous, and lighting angle reaches 170 °.
The invention have the advantage that being respectively arranged at two ends with and can rotating to an angle of the fluorescent tube housing that the present invention uses
The lamp housing chuck at finger lock fluorescent tube housing two ends, the end of two lamp housing chucks is all plugged with dismountable electrode block, whole
Individual LED lamp tube need not screw locking during assembling, it is only necessary to can connect fixing by modes such as clampings, LED
The electric connection of plate is also to connect two end electrodes block by the way of USB grafting, it is not necessary to weld the electric wire on circuit board
Connect fixing grade for tedious steps.The present invention additionally uses the LED lamp bead with multifaceted light-emitting, and light-emitting area has upper light-emitting area and four sides
Light-emitting area, it is not necessary to reset LED lamp bead four sides, this multifaceted light-emitting structure of this product, can be significantly
Promote the illumination range of LED.Effectively solve existing LED lamp bead illumination range narrow, the shortcoming that package assembly is complicated.This product is also
Have employed fluorescent adhesive layer, the upper plane of the mode one press-in LED chip of fluorescent adhesive layer employing point glue molding press punching press and four
On side, shape after fluorescent adhesive layer cools and solidifies.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand and in the case of without departing from the principle of the present invention and structure, these embodiments can be carried out multiple change, revise, replace
And modification, the scope of the present invention is limited by claims and equivalency range thereof.
Claims (10)
1. the encapsulating structure of a combined LED fluorescent tube, it is characterised in that include demountable fluorescent tube housing, described fluorescent tube
Housing be respectively arranged at two ends with the lamp housing chuck at fluorescent tube housing two ends described in finger lock that can rotate to an angle, two
The end of described lamp housing chuck is all plugged with a dismountable electrode block, is provided with a LED in the cavity of described fluorescent tube housing
Plate, described LED lamp panel is interval with multiple can be with the luminous LED lamp bead of multi-angle.
The encapsulating structure of combined LED fluorescent tube the most according to claim 1, it is characterised in that described lamp housing chuck has
Having two collars, two collars to be respectively the fluorescent tube collar and the electrode block collar, the sidewall edge of the described fluorescent tube collar is provided with two
Or plural clamping breach, described clamping breach is L-shaped, and the sidewall of the described electrode block collar is interval with two or two
Individual above raised line, big up and small down trapezoidal of the cross section of described raised line.
The encapsulating structure of combined LED fluorescent tube the most according to claim 2, it is characterised in that described electrode block includes electricity
Extreme lid, the lateral surface of described electrode end cap is provided with two electrode tubes that can snap in lamp holder jack, described electrode end cap interior
Side is provided with electrode joint chair, and described electrode joint chair is provided with a USB public plug, the corresponding described raised line in the edge of described electrode end cap
Position be provided with groove, the cross section of described groove is trapezoidal.
The encapsulating structure of combined LED fluorescent tube the most according to claim 3, it is characterised in that the two ends of described LED lamp panel
It is respectively equipped with the USB female seat for described USB public plug grafting.
The encapsulating structure of combined LED fluorescent tube the most according to claim 4, it is characterised in that described fluorescent tube housing includes
Left shell half and right half-shell, the both sides of the edge of described left shell half are equipped with an edge taken the shape of the letter U, described left shell half and right half-shell
Be respectively arranged at two ends with the projection for snapping in described clamping breach, the both sides of the edge of described right half-shell be respectively equipped with can be inserted into described
When the fixture block of edge, described left shell half and right half-shell assemble, described in the card block alignment in described right half-shell, edge inserts, until left
The two ends alignment of half-shell and right half-shell, described left shell half and right half-shell are all creamy white.
The encapsulating structure of combined LED fluorescent tube the most according to claim 5, it is characterised in that described LED lamp panel assembles
Time, penetrate in the cavity of described fluorescent tube housing, the USB public plug of the USB female seat opposite ends at LED lamp panel two ends inserts, and rotates
Lamp housing chuck, makes clamping breach connect and fix with projection.
The encapsulating structure of combined LED fluorescent tube the most according to claim 1, it is characterised in that described LED lamp bead includes
LED chip, the upper plane of described LED chip and four sides are all enclosed with one layer of fluorescent adhesive layer, and described fluorescent adhesive layer is positioned at institute
The bottom margin position stating LED chip is provided with the block that level bends inwards.
The encapsulating structure of combined LED fluorescent tube the most according to claim 7, it is characterised in that described fluorescent adhesive layer is to have
AB glue component and fluorescent material component composition.
The encapsulating structure of combined LED fluorescent tube the most according to claim 8, it is characterised in that described LED chip includes indigo plant
Gem layer, schottky junction layer, multiple quantum well layer and ohmic electrode layer, described schottky junction layer is at described sapphire layer and many
Between quantum well layer, described multiple quantum well layer is between schottky junction layer and ohmic electrode layer, and described Ohmic contact is electric
The bottom of pole layer is provided with P electrode, and the bottom of described P electrode is provided with the first salient point, described sapphire layer and described schottky junction layer
A side bottom be provided with a breach, be provided with N electrode in described indentation, there, the bottom of described N electrode is provided with the second salient point.
The encapsulating structure of combined LED fluorescent tube the most according to claim 9, it is characterised in that described sapphire layer, Xiao
Special base junction layer, multiple quantum well layer and ohmic electrode layer all take the shape of the letter U；The thickness of described fluorescent adhesive layer be 0.05mm～
0.15mm；Described fluorescent adhesive layer uses some glue molding press to be pressed on upper plane and four sides of described LED chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610562296.5A CN106051505A (en) | 2016-07-14 | 2016-07-14 | Packaging structure of combined type LED modulator tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610562296.5A CN106051505A (en) | 2016-07-14 | 2016-07-14 | Packaging structure of combined type LED modulator tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106051505A true CN106051505A (en) | 2016-10-26 |
Family
ID=57187766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610562296.5A Pending CN106051505A (en) | 2016-07-14 | 2016-07-14 | Packaging structure of combined type LED modulator tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106051505A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109864880A (en) * | 2019-01-30 | 2019-06-11 | 上海博化安防设备有限公司 | Eye syringe outer housing |
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Application publication date: 20161026 |