CN206018318U - A kind of LEDbulb lamp of easy heat radiation low cost - Google Patents
A kind of LEDbulb lamp of easy heat radiation low cost Download PDFInfo
- Publication number
- CN206018318U CN206018318U CN201620714537.9U CN201620714537U CN206018318U CN 206018318 U CN206018318 U CN 206018318U CN 201620714537 U CN201620714537 U CN 201620714537U CN 206018318 U CN206018318 U CN 206018318U
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- CN
- China
- Prior art keywords
- light source
- substrate
- lamp holder
- heat radiation
- low cost
- 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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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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- 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
-
- 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
- F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
- F21V23/002—Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model is related to a kind of LEDbulb lamp of easy heat radiation low cost.It includes lamp holder and the bulb housing with sealing receiving space being connected with thereon, is provided with relative its and forms sterically defined LED light source in bulb housing, it is characterised in that：Described LED light source includes substrate and the LED luminescence chips being arranged on substrate one side, and the driving power supply that integration packaging is arranged on substrate with LED luminescence chip cobasis plate, filled with the inert gas for heat conduction in described bulb housing.Driving power supply and LED luminescence chips are radiated using substrate, then by heat-conducting gas heat transfer to bulb housing, the utility model enormously simplify production and assembly technique, significantly reduce production cost without the need for extra radiator structure, simple structure, and radiating effect is preferable.
Description
Technical field
The utility model is related to a kind of bulb lamp, more particularly, to a kind of LEDbulb lamp of easy heat radiation low cost.
Background technology
LED light sources have the advantages that efficiency high, life-span length, and its life-span is longer than ordinary incandescent lamp.As country carries out saving
Policy, the LED industry trend pickup of energy-conserving and environment-protective can be reduced discharging, LED illumination product tends to ripe, and reduces cost becomes whole
The required course of industry.LED light source needs direct current energy supply, so general LED is designed with alternating current being changed into direct current
Driving power supply.And the driving power supply of existing LEDbulb lamp is relatively independent setting, power supply and LED light source is simultaneously driven to exist
Substantial amounts of heat can be all produced during work, therefore it needs additional heat system support its reliability, cause LED ball to be steeped
The structure of lamp is complex, encapsulation production more inconvenience, low production efficiency and relatively costly.
Content of the invention
The utility model provides one kind to be had filled with integration packaging on heat-conducting gas and LED light source in sealed bulb shell
LEDbulb lamp with the easy heat radiation low cost of the driving power supply of its cobasis plate；Solve there is complex structure in prior art, encapsulate
Production inconvenience, the problem of low production efficiency and cost height etc..
Above-mentioned technical problem of the present utility model is mainly addressed by following technical proposals：A kind of easy heat radiation is low
The LEDbulb lamp of cost, the bulb housing with sealing receiving space being connected with including lamp holder and thereon, is provided with phase in bulb housing
Sterically defined LED light source is formed to which, it is characterised in that：Described LED light source includes substrate and is arranged on substrate one side
On LED luminescence chips, and integration packaging on substrate with LED luminescence chip cobasis plate arrange driving power supply, described
Filled with the inert gas for heat conduction in bulb housing.LED light source in bulb housing can be lighted after being powered up,
Bulb housing is made up of transparent or semitransparent material so that light transmission is preferable.LED light source needs powered by direct current, drives electricity
AC power can be changed into direct current by source, and driving power supply integration packaging is set with LED luminescence chip cobasis plates on LED light source
Put, can be very good to reduce volume and weight, reduce the connection use of wire, simple structure, driving power supply and LED luminescence chips
Cobasis plate is arranged, and integration degree is higher, is conducive to the encapsulation of product produce, such that it is able to improve production efficiency with reduce into
This；Driving power supply and LED luminescence chips are radiated using substrate, meanwhile, filled with heat-conducting gas in bulb housing, will can drive
The heat transfer that power supply and LED light source are produced is to bulb housing, and then diffuses to outside, reaches quick heat radiating.The utility model without
Need extra radiator structure, simple structure to enormously simplify production and assembly technique, significantly reduce production cost, radiating effect
Fruit is preferably.
Preferably, described substrate and lamp holder are into being coaxially disposed, and LED luminescence chips are to be arranged back to lamp holder down,
Described driving power supply is arranged on substrate on the side of lamp holder.Substrate makes base onboard led light with lamp holder into being coaxially disposed
The light that chip is produced can pass through bulb housing with approximately perpendicular angle, it is possible to reduce light losing and avoid reflecting, and
Driving power supply is arranged on substrate on the side of lamp holder, is conducive to being conductively connected between lamp holder, shortens connecting wire long
Degree, encapsulation are convenient.
Preferably, described LED light source includes the first light with lamp holder into being coaxially disposed and for flat annular structure
Source, and secondary light source that is coaxial with the first light source and be arrangeding in parallel, the first light source internal are provided with logical into be coaxially disposed with which
Hole, the first described light source and secondary light source are conductively connected and both light-emitting areas are back to lamp holder and arrange down.LED light source
Include the first light source into being coaxially disposed and for flat annular structure with lamp holder, and coaxial with the first light source and be arranged in parallel
Secondary light source, the first light source and secondary light source lighted jointly, and both compensate for mutually the weak point of other side's illumination, and light effect
Rate is high, and the brightness of illumination of formation is high, and hot spot is good, and total light-emitting area is larger.Secondary light source can adopt laminated structure, therefore, base
The area of dissipation of plate is larger, can effectively reduce the temperature of LED luminescence chips, improve the maintenance of steady-state light, so as to improve stable state
Brightness.
Preferably, the secondary light source is projected being located in through hole to the projected area corresponding to the first light source.Secondary light source
Project and be located in through hole to the projected area corresponding to the first light source, both light that are simultaneously luminous and will not mutually blocking other side,
Greatly reduce the light absorbs between light source, improve luminous efficiency, both form complementation, make illumination there is no hot spot, illuminating effect
Preferably.
Preferably, the first described light source includes first substrate, through hole located at the inside of first substrate, described the
Two light sources include second substrate, and the outer rim shape of second substrate is identical with the shape of through hole and both are for can be fitted together to setting.The
The outer rim shape of two substrates is identical with the shape of through hole and both are for being fitted together to setting, and therefore, first substrate and second substrate can
Formed by same substrate time processing, baseplate material utilization rate is high, advantageously reduces cost, meanwhile, both simultaneously luminous and
The light of other side will not be mutually blocked, greatly reduces the light absorbs between light source, improve luminous efficiency, both form complementation, make
There is no hot spot in illumination, illuminating effect is preferable.
Preferably, described second substrate is laminated structure and is located near lamp holder side that driving power supply is located at second
On the side of substrate and close lamp holder.Second substrate is laminated structure and is located near lamp holder side that driving power supply is located at second
On the side of substrate and close lamp holder, second substrate is easy to fixed drive power supply with respect to first substrate, and driving power supply is near lamp
Head then can effectively reduce distance between the two, reduce the length of conductor wire, be also easier to fix second substrate.
Preferably, be provided with a pair between the first described light source and secondary light source and making both conductive communications and forming positioning
Plain conductor.Plain conductor not only can be that both form mutually conduction, can be also used for fixing both relative positions.
Preferably, being fixedly connected with wick column in the inside of bulb housing, fixation wears respectively for the lower end of two plain conductors
It is conductively connected in wick column and with the both positive and negative polarity formation of lamp holder.Wick column can be used for the plain conductor for protecting which internal, with
When can also play certain fixation to plain conductor, prevent which from deforming upon in case of shock.
Preferably, described LED light source is symmetrical arranged along the axis centre of lamp holder.LED light source is along the axis of lamp holder
The heart is symmetrical arranged so as to which illumination effect is uniform, and illuminating effect is preferable.
Therefore, the utility model is had the characteristics that compared to existing technology：1.LED light sources are existed with driving power supply integration packaging
Together, can be very good to reduce volume and weight, while integration degree is higher, simplify production packaging technology；2. bulb housing
Interior filled with heat-conducting gas, simple structure, radiating effect are outstanding；3.LED light sources include the first light source and secondary light source, both
Light that is simultaneously luminous and will not mutually blocking other side, greatly reduces the light absorbs between light source, and both form complementation, formation
Brightness of illumination is high, and hot spot is good, and total light-emitting area is larger, and illuminating effect is preferable；4. secondary light source can adopt laminated structure, substrate
Area of dissipation larger, can effectively reduce the temperature of LED luminescence chips, improve the maintenance of steady-state light, bright so as to improve stable state
Degree；5. the outer rim shape of second substrate is identical with the shape of the through hole of first substrate and both are to be fitted together to setting, first substrate
Can be formed by same substrate time processing with second substrate, baseplate material utilization rate is high, advantageously reduces cost.
Description of the drawings
Accompanying drawing 1 is the sectional view of embodiment of the present utility model 1；
Accompanying drawing 2 is the sectional view of embodiment of the present utility model 2；
Accompanying drawing 3 is the structural representation after embodiment of the present utility model 2 eliminates bulb housing.
Specific embodiment
Below by embodiment, and accompanying drawing is combined, the technical solution of the utility model is described in further detail.
Embodiment 1：See Fig. 1, a kind of LEDbulb lamp of easy heat radiation low cost, including lamp holder 1 and having of being connected with thereon
The bulb housing 2 of sealing receiving space, is provided with relative its and forms sterically defined LED light source 3 in bulb housing 2, LED light source 3 includes
Have substrate 31 and LED luminescence chips 32 being arranged on 31 one side of substrate, and integration packaging on the substrate 31 with the luminous cores of LED
The driving power supply 4 that 32 cobasis plate of piece is arranged, filled with the inert gas for heat conduction in bulb housing 2.In bulb housing
LED light source can be lighted after being powered up, and bulb housing is made up of transparent or semitransparent material so that light transmission is preferable.
LED light source needs powered by direct current, driving power supply AC power can be changed into direct current, and driving power supply integration packaging exists
Arrange with LED luminescence chip cobasis plate on LED light source, can be very good to reduce volume and weight, the connection for reducing wire is used,
Simple structure, driving power supply and LED luminescence chip cobasis plate are arranged, and integration degree is higher, is conducive to the encapsulation of product to produce,
Such that it is able to improve production efficiency and reduces cost；Driving power supply and LED luminescence chips are radiated using substrate, meanwhile, in bulb
Heat-conducting gas is filled with shell, and the heat transfer that can be produced driving power supply and LED light source is to bulb housing, and then diffuses to outer
Portion, reaches quick heat radiating.The utility model enormously simplify production and assembly technique without the need for extra radiator structure, simple structure,
Production cost is significantly reduced, radiating effect is preferable.
See that Fig. 1, substrate 31 are coaxially disposed for 1 one-tenth with lamp holder, and LED luminescence chips 32 are to be arranged back to lamp holder down, drive
Power supply 4 is arranged on substrate 31 on the side of lamp holder 1.Substrate produces base onboard led luminescence chip with lamp holder into being coaxially disposed
Raw light can pass through bulb housing with approximately perpendicular angle, it is possible to reduce light losing and avoid reflecting, and drive electricity
Source is arranged on substrate on the side of lamp holder, is conducive to being conductively connected between lamp holder, shortens connecting wire length, encapsulation
Convenient.
Embodiment 2：See Fig. 2, Fig. 3, LED light source is included and is coaxially disposed with 1 one-tenth of lamp holder and for flat annular structure
One light source 3a, and secondary light source 3b that is coaxial with the first light source 3a and be arrangeding in parallel, be provided with inside the first light source 3a with its into
The through hole 311 being coaxially disposed, the first light source 3a and secondary light source 3b is conductively connected and both light-emitting areas are back to 1 court of lamp holder
Lower setting.LED light source includes the first light source with lamp holder into being coaxially disposed and for flat annular structure, and with the first light source
Secondary light source that is coaxial and be arrangeding in parallel, the first light source and secondary light source are lighted jointly, and both compensate for mutually other side's illumination
Weak point, luminous efficiency are high, and the brightness of illumination of formation is high, and hot spot is good, and total light-emitting area is larger.Secondary light source can adopt piece
Shape structure, therefore, the area of dissipation of substrate is larger, can effectively reduce the temperature of LED luminescence chips, improve the dimension of steady-state light
Hold, so as to improve steady luminance.
See that Fig. 2, secondary light source 3b are projected to be located in through hole 311 to the projected area corresponding to the first light source 3a.Secondary light source
Project and be located in through hole to the projected area corresponding to the first light source, both light that are simultaneously luminous and will not mutually blocking other side,
Greatly reduce the light absorbs between light source, improve luminous efficiency, both form complementation, make illumination there is no hot spot, illuminating effect
Preferably.
See Fig. 3, the first light source 3a includes first substrate 301, and through hole 311 is located at the inside of first substrate 301, the second light
Source 3b includes second substrate 401, and the outer rim shape of second substrate 401 is identical with the shape of through hole 311 and both are for can be fitted together to
Arrange.The outer rim shape of second substrate is identical with the shape of through hole and both are for being fitted together to setting, therefore, first substrate and second
Substrate can be formed by same substrate time processing, and baseplate material utilization rate is high, advantageously reduces cost, meanwhile, both are simultaneously
Light that is luminous and will not mutually blocking other side, greatly reduces the light absorbs between light source, improves luminous efficiency, and both form mutually
Mend, make illumination there is no hot spot, illuminating effect is preferable.
See that Fig. 2, Fig. 3, second substrate 401 are laminated structure and are located near 1 side of lamp holder that driving power supply 4 is located at second
On the side of substrate 401 and close lamp holder 1.Second substrate is laminated structure and is located near lamp holder side that driving power supply is located at
On the side of second substrate and close lamp holder, second substrate is easy to fixed drive power supply with respect to first substrate, and driving power supply is leaned on
Low beam head then can effectively reduce distance between the two, reduce the length of conductor wire, be also easier to fix second substrate.
See Fig. 3, a pair are provided between the first light source 3a and secondary light source 3b makes both conductive communications and form the gold of positioning
Category wire 5.Plain conductor not only can be that both form mutually conduction, can be also used for fixing both relative positions.
Seeing Fig. 2, Fig. 3, wick column 6 being fixedly connected with the inside of bulb housing 2, the lower end of two plain conductors 5 is fixed respectively
It is located in wick column 6 and is conductively connected with the both positive and negative polarity formation of lamp holder 1.The metal that wick column can be used for protecting which internal is led
Line, while certain fixation can also be played to plain conductor, prevents which from deforming upon in case of shock.
See that Fig. 2, LED light source 3 are symmetrical arranged along the axis centre of lamp holder 1.LED light source is symmetrically set along the axis centre of lamp holder
Put so as to which illumination effect is uniform, and illuminating effect is preferable.
It is apparent to one skilled in the art that the utility model can change into various ways, such changes not
Think to depart from scope of the present utility model.The all such art personnel are obviously changed are included within this
Within the scope of claim.
Claims (9)
1. the LEDbulb lamp of a kind of easy heat radiation low cost, including lamp holder（1）Be connected with thereon with sealing receiving space
Bulb housing（2）, bulb housing（2）Inside it is provided with relative its and forms sterically defined LED light source（3）, it is characterised in that：Described LED
Light source（3）Include substrate（31）Be arranged on substrate（31）LED luminescence chips on one side（32）, and integration packaging is in base
Plate（31）Upper and LED luminescence chips（32）The driving power supply that cobasis plate is arranged（4）, described bulb housing（2）Interior filled with being used for
The inert gas of heat conduction.
2. the LEDbulb lamp of easy heat radiation according to claim 1 low cost, it is characterised in that：Described substrate（31）With
Lamp holder（1）Into being coaxially disposed, and LED luminescence chips（32）It is to be arranged back to lamp holder down, described driving power supply（4）It is arranged on
Substrate（31）Near lamp holder（1）Side on.
3. the LEDbulb lamp of easy heat radiation according to claim 1 low cost, it is characterised in that：Described LED light source includes
Have and lamp holder（1）The first light source into being coaxially disposed and for flat annular structure（3a）, and with the first light source（3a）Coaxial and
The secondary light source be arrangeding in parallel（3b）, the first light source（3a）Inside is provided with which into the through hole being coaxially disposed（311）, described
One light source（3a）And secondary light source（3b）It is conductively connected and both light-emitting areas is back to lamp holder（1）Arrange down.
4. the LEDbulb lamp of easy heat radiation according to claim 3 low cost, it is characterised in that：The secondary light source（3b）
Project to the first light source（3a）Corresponding projected area is located at through hole（311）Interior.
5. the inexpensive LEDbulb lamp of easy heat radiation according to claim 3 or 4, it is characterised in that：The first described light source
（3a）Include first substrate（301）, through hole（311）It is located at first substrate（301）Inside, described secondary light source（3b）Bag
Second substrate is included（401）, second substrate（401）Outer rim shape and through hole（311）Shape identical and both are for can be fitted together to
Arrange.
6. the LEDbulb lamp of easy heat radiation according to claim 5 low cost, it is characterised in that：Described second substrate
（401）For laminated structure and positioned near lamp holder（1）Side, driving power supply（4）It is located at second substrate（401）And near lamp holder
（1）Side on.
7. the LEDbulb lamp of easy heat radiation according to claim 3 low cost, it is characterised in that：The first described light source
（3a）And secondary light source（3b）Between be provided with the plain conductor for making both conductive communications for a pair and forming positioning（5）.
8. the LEDbulb lamp of easy heat radiation according to claim 7 low cost, it is characterised in that：In bulb housing（2）Inside
It is fixedly connected with wick column（6）, two plain conductors（5）Lower end respectively fixation be located in wick column（6）Interior and and lamp holder（1）'s
Both positive and negative polarity is formed and is conductively connected.
9. the LEDbulb lamp of easy heat radiation according to claim 1 low cost, it is characterised in that：Described LED light source（3）
Along lamp holder（1）Axis centre be symmetrical arranged.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610140691 | 2016-03-11 | ||
| CN2016101406914 | 2016-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206018318U true CN206018318U (en) | 2017-03-15 |
Family
ID=56900436
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610530898.2A Withdrawn CN105953102A (en) | 2016-03-11 | 2016-06-30 | Low-cost LED bulb lamp easy to dissipate heat |
| CN201620714537.9U Active CN206018318U (en) | 2016-03-11 | 2016-06-30 | A kind of LEDbulb lamp of easy heat radiation low cost |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610530898.2A Withdrawn CN105953102A (en) | 2016-03-11 | 2016-06-30 | Low-cost LED bulb lamp easy to dissipate heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105953102A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953102A (en) * | 2016-03-11 | 2016-09-21 | 浙江英特来光电科技有限公司 | Low-cost LED bulb lamp easy to dissipate heat |
| CN108167677A (en) * | 2017-12-27 | 2018-06-15 | 亚浦耳照明股份有限公司 | The preparation method and LED light of a kind of LED |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113646576A (en) * | 2019-03-19 | 2021-11-12 | 昕诺飞控股有限公司 | LED lighting bulb and manufacturing method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2687529C (en) * | 2009-12-03 | 2010-11-16 | Allen H. L. Su | Led light bulb with improved illumination and heat dissipation |
| CN203517706U (en) * | 2013-06-21 | 2014-04-02 | 立达信绿色照明股份有限公司 | LED bulb lamp with radiating lamp cap |
| CN104482446A (en) * | 2015-01-05 | 2015-04-01 | 江苏立德照明产业有限公司 | Annular LED bulb lamp |
| CN204573634U (en) * | 2015-02-28 | 2015-08-19 | 孙夕庆 | A kind of ceramic LED light source of integrated driving |
| CN204573708U (en) * | 2015-05-23 | 2015-08-19 | 陈海利 | A kind of quick heat radiating LED |
| CN205048181U (en) * | 2015-09-18 | 2016-02-24 | 深圳市鼎业欣电子有限公司 | LED drive power supply electricity -saving lamp |
| CN205001930U (en) * | 2015-10-12 | 2016-01-27 | 陕西锐士电子技术有限公司 | LED ball bubble lamp is aerifyd to glass bulb |
| CN105953102A (en) * | 2016-03-11 | 2016-09-21 | 浙江英特来光电科技有限公司 | Low-cost LED bulb lamp easy to dissipate heat |
-
2016
- 2016-06-30 CN CN201610530898.2A patent/CN105953102A/en not_active Withdrawn
- 2016-06-30 CN CN201620714537.9U patent/CN206018318U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953102A (en) * | 2016-03-11 | 2016-09-21 | 浙江英特来光电科技有限公司 | Low-cost LED bulb lamp easy to dissipate heat |
| CN108167677A (en) * | 2017-12-27 | 2018-06-15 | 亚浦耳照明股份有限公司 | The preparation method and LED light of a kind of LED |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105953102A (en) | 2016-09-21 |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |