CN105805912B - Drainage component and air conditioner - Google Patents

Drainage component and air conditioner Download PDF

Info

Publication number
CN105805912B
CN105805912B CN201410846443.2A CN201410846443A CN105805912B CN 105805912 B CN105805912 B CN 105805912B CN 201410846443 A CN201410846443 A CN 201410846443A CN 105805912 B CN105805912 B CN 105805912B
Authority
CN
China
Prior art keywords
air
drainage component
body part
molded line
outlet
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.)
Active
Application number
CN201410846443.2A
Other languages
Chinese (zh)
Other versions
CN105805912A (en
Inventor
王永涛
闫宝升
贾广芬
关婷婷
王晓刚
李健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Air Conditioner Gen Corp Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Air Conditioner Gen Corp Ltd filed Critical Qingdao Haier Air Conditioner Gen Corp Ltd
Priority to CN201410846443.2A priority Critical patent/CN105805912B/en
Publication of CN105805912A publication Critical patent/CN105805912A/en
Application granted granted Critical
Publication of CN105805912B publication Critical patent/CN105805912B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Abstract

The invention discloses a kind of drainage component and air conditioners, the drainage component includes body part, the section of the body part along its length is waveform, the body part forms a plurality of wave crest molded line and a plurality of trough molded line in the width direction, and the width of the joint face between adjacent wave crest molded line and trough molded line is cumulative from first end to second end along the width direction of the body part.The drainage component can be applied and be drained in air conditioner.Using drainage component of the invention, stream can be taken offence from paripheral zone using primary air and primary air carries out being mixed to form mixed airflow.If applying the drainage component at uptake of indoor machine of air conditioner, then mixed using the surrounding flow of drive with heat exchange air-flow, the air-flow of air outlet blowout and the temperature difference of room air are reduced, improves outlet air comfort level, and the circulation rate of room air can be accelerated.

Description

Drainage component and air conditioner
Technical field
The invention belongs to air-conditioning technique fields, specifically, being to be related to a kind of drainage component and have a conduction part The air conditioner of part.
Background technique
The components such as wind deflector, air-duct spiral case at existing uptake of indoor machine of air conditioner are plate or smooth surface knot Structure, main function are oriented to air-flow, and the air-flow after the exchanger heat exchange inside indoor unit is blown out from air outlet When, under the guiding of component, interior is blowed in a manner of more concentrating.
Due to after heat exchanger heat exchange air-flow and the room air temperature difference it is larger, from air outlet blow out heat hand over Scavenging flow is directly blown can feel under the weather on the person.Moreover, because the air-flow of air outlet blowout is more concentrated, air circulation speed Degree is slow, also slow with the speed of room air mixed heat transfer, causes room temperature adjustment speed slow.
Summary of the invention
The object of the present invention is to provide a kind of drainage component and air conditioner, drainage component driven while wind-guiding around gas It flows and forms mixed airflow, can solve the component at existing uptake of indoor machine of air conditioner can only carry out air-flow guiding and exist The above problem.
For achieving the above object, drainage component provided by the invention, which adopts the following technical solutions, is achieved:
A kind of drainage component, the drainage component include body part, and the section of the body part along its length is wave Shape, the body part form a plurality of wave crest molded line and a plurality of trough molded line, adjacent wave crest molded line and trough type in the width direction The width of joint face between line is cumulative from first end to second end along the width direction of the body part.
Drainage component as described above, spacing of the wave crest molded line of adjacent two on the body part length direction For 10-50mm.
Drainage component as described above, the maximum height difference between adjacent the wave crest molded line and trough molded line are 10- 30mm。
Drainage component as described above, the drainage component further include dispenser, the dispenser in the longitudinal direction with The first end of the body part connects.
The present invention also provides a kind of wall-mounted air conditioner, including indoor unit, the indoor unit forms air outlet, the room Interior machine has above-mentioned drainage component.
Wall-mounted air conditioner as described above, the drainage component are the wind deflector being formed on the air outlet, and institute The first end and second end for stating body part width direction in drainage component is respectively air intake and outlet air end.
Wall-mounted air conditioner as described above, the drainage component is the air-duct spiral case at the air outlet, and described is drawn The first end and second end of body part width direction is respectively air intake and outlet air end in stream unit.
Wall-mounted air conditioner as described above, the drainage component are under air duct upper volute and air duct at the air outlet Spiral case.
The present invention also provides a kind of vertical air conditioner, including indoor unit, the indoor unit forms air outlet, the indoor unit With above-mentioned drainage component.
Vertical air conditioner as described above, the drainage component are the wind deflector on the air outlet, and the drainage component The first end and second end of middle body part width direction is respectively air intake and outlet air end.
Compared with prior art, the advantages and positive effects of the present invention are: the present invention is by designing section along its length It is increased under the premise of the main air quantity that drainage component one side is drawn is certain using wave-like for wavy drainage component From the area of opposite another side guidance surrounding flow, mixed to increase from the throughput around driven and main air quantity Conjunction forms mixed air-flow.If applying the drainage component at uptake of indoor machine of air conditioner, using gas around drive Stream is mixed with heat exchange air-flow, is reduced the air-flow of air outlet blowout and the temperature difference of room air, is improved outlet air comfort level.Moreover, The circulation rate for accelerating room air improves room temperature adjustment speed, improves air conditioner heat exchange efficiency, helps to drop Low energy consumption.
After a specific embodiment of the invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear Chu.
Detailed description of the invention
Fig. 1 is the perspective view of drainage component one embodiment of the present invention;
Fig. 2 is the main view of Fig. 1 drainage component;
Fig. 3 is the side view of Fig. 1 drainage component;
Fig. 4 is the main view of the air condition of that present invention one embodiment;
Fig. 5 is the sectional side view of the air condition of that present invention one embodiment;
Fig. 6 is the part-structure perspective view of the air condition of that present invention one embodiment;
Fig. 7 is the main view of second embodiment of the air condition of that present invention;
Fig. 8 is the sectional side view of second embodiment of the air condition of that present invention;
Fig. 9 is the fragmentary front view of the air condition of that present invention third embodiment;
Figure 10 is the part sectional side view of the air condition of that present invention third embodiment;
Figure 11 is the perspective view of the air condition of that present invention third embodiment part-structure.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to drawings and examples, Invention is further described in detail.
One embodiment of drainage component of the present invention referring to fig. 1 to fig. 3, wherein Fig. 1 is the vertical of the embodiment Body figure, Fig. 2 are the main views of the embodiment, and Fig. 3 is the side view of the embodiment.
Meaning as shown in Figure 1 to Figure 3, the drainage component 1 of the embodiment include body part 11.The knot in long strip of body part 11 Structure, and along its length on section be waveform.Body part 11 has first end 114 and second end along its width direction 115, and it is formed with a plurality of wave crest molded line 111 and a plurality of trough molded line 112 in the width direction.Wherein, wave crest molded line 111 is Refer to that contour line of the wave crest in 11 width direction of body part, trough molded line 112 refer to a trough along 11 width of body part Contour line on direction.Moreover, in a plurality of wave crest molded line 111 and a plurality of trough molded line 112, an adjacent wave crest molded line 111 The width of joint face 113 between a trough molded line 112 is cumulative to second end 115 along the first end 114 of body part 11.? That is, adjacent a wave crest molded line 111 and a trough molded line 112 extend to second end 115 in divergent shape from first end 114.
The region of drainage component 1 with above structure, one side (referring to upper surface in Fig. 1) institute's direction forms main flow area 13, the region of opposite another side (referring to lower surface in Fig. 1) institute's direction forms drainage area 14.Have by design drainage component 1 Have along its length section be wavy body part 11, increase the contact area of body part 11 Yu surrounding space.It is draining There is the gas for flowing from the first end 114 of body part 11 to second end 115 and blowing over from second end 115 in the main flow area 13 of component 1 When stream, under the action of the air-flow, the air-flow in drainage area 14 will be driven also to flow from first end 114 to second end 115.In mainstream It, can be by means of the large access area of body part 11 and surrounding space and from drawing under the premise of the main air quantity that area 13 is flowed is certain Stream area 14 drives a large amount of air-flow, and the air-flow that drainage area 14 is driven is as drainage, after mixing with the primary air of main flow area 13 It blows out together.Moreover, because the width edge of the joint face 113 between adjacent a wave crest molded line 111 and a trough molded line 112 The first end 114 of body part 11 is cumulative to second end 115, forms the diffusion runner of flaring, and the primary air of main flow area 13 flows through expansion Runner is pressed, flow velocity reduces, and it is excessive to help avoid the primary air pressure loss for pressure rise, it is thus possible to reduce the wind of primary air Amount loss guarantees to blow out the higher primary air amount of flow from second end 115, and guarantees that the higher primary air of flow can be from drainage Area 14 drives more drainage flows, and then increases mixed gas flow.
In this embodiment, it is in from first end 114 with a trough molded line 112 due to an adjacent wave crest molded line 111 Divergent shape extends to second end 115, thus, wave crest molded line 111 and adjacent trough molded line 112 have most at second end 115 Big height difference H, it is preferred that the range of maximum height difference H is 10-30mm.Moreover, two adjacent wave crest molded line 111 are along ontology Wavelength of the spacing L as body part 11 on 11 length direction of portion, preferred range is 10-50mm.Pass through difference in height and wavelength Above-mentioned restriction, be capable of increasing from drainage area 14 drainage flow.
In addition, it is contemplated that it is relatively narrow by section 113 to be formed by runner at the first end 114 of body part 11, to make winner For the primary air in stream area 13 from first end 114 even into each runner, drainage component 1 further includes having dispenser 12.Specifically, divide It is connect in the longitudinal direction with the first end 114 of body part 11 with portion 12.The surface of dispenser 12 is smooth cambered surface, can be incited somebody to action The primary air of main flow area 13 is evenly distributed along its length, and the primary air after evenly distributing will be from the first end of body part 11 114 even into in each waveform runner.
The drainage component 1 of structure described in the embodiment, can be applied in air conditioner, can specifically apply in air-conditioning At the air outlet of air conditioner indoor machine, in turn, it may be implemented to drain.More specifically drainage realization process and effect are referring to following example Description.
One embodiment of the air condition of that present invention referring to fig. 4 to fig. 6, namely the wall hanging with drainage component Formula air conditioner.Wherein, Fig. 4 and Fig. 5 is the main view and sectional side view of the embodiment, and Fig. 6 is the perspective view of part-structure.
Meaning, the wall-mounted air conditioner of the embodiment include indoor unit 200 as shown in Figures 4 to 6, inside indoor unit 200 It is formed with air duct 23, axial-flow fan 22 is provided in air duct 23, in the front lower rectangular of 23 end of air duct namely indoor unit 200 At there is air outlet 21.It is air outlet duct upper volute 24 above air outlet 21,21 lower section of air outlet corresponds under air outlet duct Drainage component 25 is formed at spiral case position.Wherein, drainage component 25 is the modular construction in Fig. 1 embodiment, and drainage component 25 whole radian is adapted with spiral case radian under existing air outlet duct.Moreover, being set at spiral case position under air outlet duct After setting drainage component 25, the first end 251 and second end 252 of body part are respectively air intake and outlet air end.That is, first End 251 is closer to axial-flow fan 22, and second end 252 is closer to air outlet 21.
By the spiral case position drainage component 25 under air outlet duct, indoor air under the action of axial-flow fan 22, Internal heat exchanger (being not marked in figure) is entered from the air inlet (being not marked in figure) of indoor unit 200, the heat after heat exchange is handed over Change wind to flow through through air duct 23 and drainage component 25, then from air outlet 21(namely second end 252) blowout.In drainage component 25 Under effect, when heat exchange wind is blown out, the indoor air flow around 25 lower section of drainage component will be driven also to flow towards second end 252. This part indoor air flow and heat exchange air-flow mixing after-blow are to interior.The temperature of mixed air-flow and the temperature of indoor air flow it Between the temperature difference will reduce, to improve the comfort level of mixed airflow, blowing on the person can feel more comfortable.Moreover, utilizing Drainage component 25 drives the flowing of indoor air flow, accelerates the circulation rate of room air, improves room temperature adjustment speed, Air conditioner heat exchange efficiency is improved, helps to reduce energy consumption.
In the embodiment, drainage component 25 is provided under air outlet duct at spiral case position.But not limited to this, air outlet Air duct upper volute 24 can also realize using the structure of Fig. 1 drainage component 1, at this time, it is only necessary to adjust the entirety of drainage component 1 Radian is adapted with former 24 radian of air outlet duct upper volute.
Refer to second embodiment of Fig. 7 and the air condition of that present invention shown in Fig. 8, namely the wall hanging with drainage component Formula air conditioner.Wherein, Fig. 7 is the main view of the embodiment, and Fig. 8 is the sectional side view of the embodiment.
As shown in Figure 7 and Figure 8, the wall-mounted air conditioner of the embodiment includes indoor unit 300,300 inside shape of indoor unit At there is air duct 33, it is provided with axial-flow fan 32 in air duct 33, is formed in the front lower place of 33 end of air duct namely indoor unit 300 There is air outlet 31.It is air outlet duct upper volute 24 above air outlet 31,21 lower section of air outlet corresponds to snail under air outlet duct The first drainage component 35 is formed at shell position, on air outlet 21, corresponding to being formed with the second conduction part at wind-guiding Board position Part 36.Wherein, the first drainage component 35 and the second drainage component 36 are the modular construction in Fig. 1 embodiment, and first drains The whole radian of component 35 is adapted with spiral case radian under existing air outlet duct, and the whole radian of the second drainage component 36 with The radian of existing wind deflector is adapted.Moreover, the first end and second end of the first drainage component 35 is respectively air intake and outlet air It holds (referring to fig. 4 to one embodiment of Fig. 6), the first end and second end (being not marked in figure) of the second drainage component 36 is respectively For air intake and outlet air end.That is, under 36 opening state of the second drainage component as wind deflector, the second drainage component 36 First end is close to axial-flow fan 32, and second end is far from axial-flow fan 32.
It is respectively provided with drainage component by the spiral case under air outlet duct and wind-guiding Board position, further increases drainage wind Amount has further speeded up the flowing velocity of room air while further decreasing mixed airflow and the room air temperature difference.
The third embodiment of the air condition of that present invention shown in Fig. 9 to Figure 11 is referred to, namely vertical with drainage component Formula air conditioner.Wherein, Fig. 9 and Figure 10 is the fragmentary front view and part sectional side view of the embodiment respectively, and Figure 11 is the embodiment The perspective view of part-structure.
Meaning as shown in Figures 9 to 11, the floor air conditioner of the embodiment includes indoor unit 400, is set inside indoor unit 400 It is equipped with fan (not shown), is formed with air outlet 41 on the front panel of machine 400 indoors.On air outlet 41, correspond to Be formed with the first drainage component 42 at existing vertical wind-guiding Board position, and on air outlet 41, correspond to existing level wind deflector The second drainage component 43 is formed at position.Wherein, the first drainage component 42 and the second drainage component 43 are in Fig. 1 embodiment Modular construction, and the whole radian of the first drainage component 42 is adapted with existing vertical wind deflector radian, the second drainage component 43 whole radian is adapted with the radian of existing level wind deflector.Moreover, the first end and second end of the first drainage component 42 Respectively air intake and outlet air end (being not marked in figure).That is, in 42 open shape of the first drainage component as vertical wind deflector Under state, fan of the first end inside indoor unit 400, and its second end is far from the fan.Likewise, the second drainage component 43 first end and second end is respectively air intake and outlet air end (being not marked in figure).That is, as perpendicular horizontal wind deflector Under second drainage component, 43 opening state, fan of the first end inside indoor unit 400, and its second end is far from the wind Fan.
With it is preceding described, by air outlet 41 wind-guiding Board position be arranged two drainage components, be able to drive surrounding flow The heat exchange air-flow blown out with air outlet 41 mixes, and while reducing mixed airflow and the room air temperature difference, further speeds up The flowing velocity of room air.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited;Although referring to aforementioned reality Applying example, invention is explained in detail, for those of ordinary skill in the art, still can be to aforementioned implementation Technical solution documented by example is modified or equivalent replacement of some of the technical features;And these are modified or replace It changes, the spirit and scope for claimed technical solution of the invention that it does not separate the essence of the corresponding technical solution.

Claims (9)

1. a kind of drainage component, which is characterized in that the drainage component includes body part, section of the body part along its length Face is waveform, and the body part forms a plurality of wave crest molded line and a plurality of trough molded line, adjacent wave crest molded line in the width direction The width of joint face between trough molded line is cumulative from first end to second end along the width direction of the body part;The drainage Component further includes dispenser, and the dispenser is connect with the first end of the body part in the longitudinal direction.
2. drainage component according to claim 1, which is characterized in that the wave crest molded line of adjacent two is along the ontology Spacing on portion's length direction is 10-50mm.
3. drainage component according to claim 1, which is characterized in that between adjacent the wave crest molded line and trough molded line Maximum height difference is 10-30mm.
4. a kind of wall-mounted air conditioner, including indoor unit, the indoor unit forms air outlet, which is characterized in that the indoor unit With drainage component described in any one of the claims 1 to 3.
5. wall-mounted air conditioner according to claim 4, which is characterized in that the drainage component is to be formed in the outlet air Wind deflector on mouth, and the first end and second end of body part width direction is respectively air intake and outlet air in the drainage component End.
6. wall-mounted air conditioner according to claim 4, which is characterized in that the drainage component is at the air outlet Air-duct spiral case, and the first end and second end of body part width direction is respectively air intake and outlet air end in the drainage component.
7. wall-mounted air conditioner according to claim 6, which is characterized in that the drainage component is at the air outlet Spiral case under air duct upper volute and air duct.
8. a kind of vertical air conditioner, including indoor unit, the indoor unit forms air outlet, which is characterized in that the indoor unit has Drainage component described in any one of the claims 1 to 3.
9. vertical air conditioner according to claim 8, which is characterized in that the drainage component is the wind-guiding on the air outlet Plate, and the first end and second end of body part width direction is respectively air intake and outlet air end in the drainage component.
CN201410846443.2A 2014-12-31 2014-12-31 Drainage component and air conditioner Active CN105805912B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410846443.2A CN105805912B (en) 2014-12-31 2014-12-31 Drainage component and air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410846443.2A CN105805912B (en) 2014-12-31 2014-12-31 Drainage component and air conditioner

Publications (2)

Publication Number Publication Date
CN105805912A CN105805912A (en) 2016-07-27
CN105805912B true CN105805912B (en) 2019-10-01

Family

ID=56420306

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410846443.2A Active CN105805912B (en) 2014-12-31 2014-12-31 Drainage component and air conditioner

Country Status (1)

Country Link
CN (1) CN105805912B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106322709B (en) * 2016-08-23 2019-05-31 青岛海尔空调器有限总公司 Air conditioner air deflector and air-conditioning with the wind deflector
CN106322710B (en) * 2016-08-23 2019-04-23 青岛海尔空调器有限总公司 Air conditioner air deflector and air-conditioning
CN106403230B (en) * 2016-09-07 2019-05-31 青岛海尔空调器有限总公司 Wind deflector and wall-hanging air conditioner indoor unit with it
CN109301725A (en) * 2016-09-21 2019-02-01 金华市秸和环保技术咨询有限公司 A kind of electric power cabinet
CN107702204B (en) * 2017-09-04 2019-10-01 青岛海尔空调器有限总公司 Wall-hanging air conditioner indoor unit
CN107965895B (en) * 2017-11-16 2020-09-29 苏州庆瑞空气系统有限公司 Multifunctional air conditioner air port

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1782594A (en) * 2004-11-30 2006-06-07 乐金电子(天津)电器有限公司 Flow guide plate structure of air outlet of air conditioner
CN103453646A (en) * 2013-06-03 2013-12-18 海尔集团公司 Air conditioner and air supply device thereof
CN203823891U (en) * 2014-02-20 2014-09-10 大金工业株式会社 Indoor unit of air conditioner
CN104236038A (en) * 2013-06-20 2014-12-24 广东美的制冷设备有限公司 Air vane and air conditioner with same
CN204460621U (en) * 2014-12-31 2015-07-08 青岛海尔空调器有限总公司 Drainage component and air-conditioner

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU848902A1 (en) * 1979-11-13 1981-07-23 Иркутский политехнический институт Inflow nozzle
JP3136832B2 (en) * 1993-04-05 2001-02-19 ダイキン工業株式会社 Air conditioner indoor unit
US7404847B2 (en) * 2005-07-28 2008-07-29 Hess Don H Apparatus and method for enhancing filtration
KR101392092B1 (en) * 2007-10-22 2014-05-12 엘지전자 주식회사 A ceiling-mounted type air conditioner
CN103868380B (en) * 2012-12-11 2016-08-24 杭州三花研究院有限公司 A kind of heat-exchangers of the plate type
CN103307696B (en) * 2013-05-22 2015-06-24 苏州安岢栎热能科技有限公司 Energy-saving type sill embedded air exchanger

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1782594A (en) * 2004-11-30 2006-06-07 乐金电子(天津)电器有限公司 Flow guide plate structure of air outlet of air conditioner
CN103453646A (en) * 2013-06-03 2013-12-18 海尔集团公司 Air conditioner and air supply device thereof
CN104236038A (en) * 2013-06-20 2014-12-24 广东美的制冷设备有限公司 Air vane and air conditioner with same
CN203823891U (en) * 2014-02-20 2014-09-10 大金工业株式会社 Indoor unit of air conditioner
CN204460621U (en) * 2014-12-31 2015-07-08 青岛海尔空调器有限总公司 Drainage component and air-conditioner

Also Published As

Publication number Publication date
CN105805912A (en) 2016-07-27

Similar Documents

Publication Publication Date Title
CN105805912B (en) Drainage component and air conditioner
CN204460621U (en) Drainage component and air-conditioner
CN105371362B (en) Air conditioner indoor unit
CN107076430B (en) Air conditioner
CN105698263A (en) Vertical air conditioner indoor unit with drainage structure
CN106482230A (en) A kind of mixed flow air-conditioning
CN105698267A (en) Wall-hung air conditioner with drainage structure
CN105698264A (en) Vertical air conditioner indoor unit with drainage structure
CN105318436B (en) Air conditioner indoor unit
CN107355874A (en) Air conditioner and air guide structure
CN204227555U (en) Air-conditioner
CN105829808A (en) Air conditioner
CN106403230A (en) Air deflector and wall-mounted type air conditioner indoor unit provided with same
CN108592180A (en) Air conditioner room unit and air conditioner
CN107345732A (en) Refrigerator
JP2007192481A (en) Air conditioner
CN107166510A (en) Indoor apparatus of air conditioner
CN105318434B (en) Air conditioner indoor unit
CN206410216U (en) A kind of wall hanging type air conditioner indoor unit and air conditioner
CN104374008B (en) The air supply method of air conditioner and the air conditioner
WO2017049445A1 (en) Indoor unit of air conditioner
CN206656428U (en) Indoor apparatus of air conditioner
CN106482231A (en) A kind of mixed flow air-conditioning
CN205860429U (en) air conditioner
CN109405082A (en) Air conditioner indoor unit and air conditioner

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant