WO2017110020A1 - 燃焼装置 - Google Patents
燃焼装置 Download PDFInfo
- Publication number
- WO2017110020A1 WO2017110020A1 PCT/JP2016/004449 JP2016004449W WO2017110020A1 WO 2017110020 A1 WO2017110020 A1 WO 2017110020A1 JP 2016004449 W JP2016004449 W JP 2016004449W WO 2017110020 A1 WO2017110020 A1 WO 2017110020A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- jacket
- combustion
- jacket portion
- side plate
- combustion housing
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/78—Cooling burner parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/34—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air
- F23D14/36—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air in which the compressor and burner form a single unit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M11/00—Safety arrangements
- F23M11/04—Means for supervising combustion, e.g. windows
- F23M11/042—Viewing ports of windows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
- F23M5/08—Cooling thereof; Tube walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Definitions
- the present invention comprises a burner that ejects an air-fuel mixture downward, and a combustion housing provided on the lower side of the burner that surrounds the combustion space of the air-fuel mixture ejected from the burner, and a heat exchanger is provided in the lower portion of the combustion housing It is related with the arranged combustion device.
- Patent Document 1 in order to improve the heat resistance of the combustion casing, a water jacket is provided as a cooling means for cooling the combustion casing in the portion of the combustion casing between the burner and the heat exchanger. What is provided is known.
- the water jacket includes a first jacket portion extending in the lateral direction provided on one side plate on the front and rear sides of the combustion housing, a third jacket portion extending in the lateral direction provided on the other side plate on the front and rear sides of the combustion housing, A second jacket portion extending in the front-rear direction connecting the first jacket portion and the third jacket portion provided on the side plate on one side in the lateral direction, and a portion closer to the front and rear sides of the side plate on the other side in the lateral direction of the combustion housing An inflow side jacket portion that guides the water that has passed through the heat exchanger to the first jacket portion, and a third jacket portion that is provided on the other side of the side plate on the other side in the lateral direction of the combustion housing.
- the outflow side jacket part into which water flows in is comprised, and the upper outlet is provided in the outflow side jacket part. And the water which passed the heat exchanger flows into the outflow side jacket part through the 1st jacket part, the 2nd jacket part, and the 3rd jacket part from the inflow side jacket part, and goes to the hot water supply path connected to this from the tap Water (hot water) is supplied.
- the 4th jacket part extended in the front and back one side toward the inflow side jacket part from the upper part of the outflow side jacket part is provided, and the inflow side jacket part and the outflow side jacket part of the side plate on the other side in the lateral direction of the combustion housing The part between the two can be cooled by the fourth jacket portion.
- the fourth jacket portion extends horizontally from the upper portion of the outflow side jacket portion to the front and rear sides.
- tip part near the inflow jacket part of a 4th jacket part is located in the height equivalent to the cross-sectional center of a tap. Therefore, if air bubbles flow into the fourth jacket portion without flowing out from the outflow side jacket portion to the outlet, the air bubbles easily accumulate in the fourth jacket portion. And since the part which the bubble of the 4th jacket part accumulated cannot be cooled with water, temperature rises, a scale accumulates easily and durability will deteriorate.
- an object of the present invention is to provide a combustion apparatus capable of suppressing the accumulation of bubbles in the fourth jacket portion.
- the present invention comprises a burner that ejects an air-fuel mixture downward, and a combustion housing that is provided below the burner and surrounds a combustion space of the air-fuel mixture ejected from the burner.
- a combustion apparatus in which a heat exchanger is disposed in a lower part of the inside, and a water jacket is provided as a cooling means for cooling the combustion casing at a portion of the combustion casing between the burner and the heat exchanger.
- a laterally extending first jacket portion provided on one side plate of the combustion housing, a laterally extending third jacket portion provided on the other side plate of the combustion housing, and a lateral side of the combustion housing Provided on the side plate of the second jacket portion extending in the front-rear direction for connecting the first jacket portion and the third jacket portion, and provided on a portion closer to the front and rear of the side plate on the other side in the lateral direction of the combustion housing, Passed the heat exchanger
- An inflow side jacket portion that guides water to the first jacket portion, and an outflow side jacket portion into which water from the third jacket portion flows in a portion near the other side of the side plate on the other side in the lateral direction of the combustion housing
- the outflow side jacket portion is provided with an upper outlet
- the fourth jacket portion extending from the upper portion of the outflow side jacket portion to the vicinity of the inflow side jacket portion is provided in the front and rear sides.
- the jacket part is formed so that the cross-sectional center of the tip part near the inflow side jacket part is
- a natural convection in the fourth jacket portion is promoted by providing a height difference between the tap and the tip of the fourth jacket portion. For this reason, even if bubbles due to local heat flow into the fourth jacket portion, the bubbles are carried to the hot water outlet by a flow due to natural convection, and the bubbles can be prevented from accumulating in the fourth jacket portion. Therefore, it is possible to prevent the durability from deteriorating due to the accumulation of scale due to the temperature rise caused by the accumulation of bubbles.
- the upper surface of the fourth jacket portion is formed as an inclined surface that is inclined upward from the tip portion near the inflow side jacket portion toward the upper surface of the outlet side of the outflow side jacket portion. It is desirable. According to this, it becomes easy to flow a bubble toward the hot water outlet side along the upper surface of the 4th jacket part, and it can prevent more effectively that a bubble accumulates in the 4th jacket part.
- FIG. 1 The perspective view of the combustion apparatus of embodiment of this invention.
- a combustion apparatus includes a burner body 11 to which an air-fuel mixture (a mixed gas of fuel gas and primary air) is supplied, and a burner body 11 facing downward.
- a combustion plate 12 made of sheet metal that covers the open surface 111, and a burner 1 in which an air-fuel mixture is ejected downward from an air-fuel mixture ejection part 121 provided on the combustion plate 12, and a combustion space of the air-fuel mixture ejected from the burner 1
- a surrounding combustion housing 2 is provided.
- a heat exchanger 3 for hot water supply is housed in the lower part of the combustion housing 2.
- the upper end portion of the combustion housing 2 is provided with a joining flange portion 22 that is fastened with a screw 21 to a body flange portion 112 that surrounds the open surface 111 of the burner body 11.
- a combustion plate flange portion 122 at the periphery of the combustion plate 12 is sandwiched between the joint flange portion 22 and the body flange portion 112.
- the burner body 11 is provided with an inlet 113 for connecting the fan 4 that supplies the air-fuel mixture.
- the inflow port 113 is equipped with a check valve 13 that prevents the air-fuel mixture remaining in the burner body 11 from flowing backward to the fan 4 side when the fan 4 is stopped.
- the check valve 13 includes a resin valve casing 131 fitted into the inflow port 113 and a resin valve plate 132 pivotally attached to an opening of the valve casing 131 facing the inside of the burner body 11 so as to be opened and closed. ing.
- the combustion plate 12 has a large opening at the center.
- a heat-resistant fiber woven fabric 121a is attached to the opening, and a distribution plate 121b on which a number of distribution holes are formed is overlaid, and the woven fabric 121a and the distribution plate 121b constitute an air-fuel mixture ejection portion 121. Yes. Then, the air-fuel mixture supplied from the fan 4 into the burner body 11 is ejected from the air-fuel mixture ejection part 121 so that all primary combustion occurs. It is also possible to form a large number of flame holes in a combustion plate that does not have a large opening, and to form an air-fuel mixture ejection part with these flame holes.
- the heat exchanger 3 is configured by a fin tube type heat exchanger including a large number of fins 31 and a plurality of heat absorption tubes 32 penetrating the fins 31.
- a connection lid 33 that defines a connection path between two adjacent heat absorption tubes 32 and 32 between the side plates 23 and 24.
- a water inlet 34 is provided in a connection lid 33 that defines a connection path connected to the heat absorption pipe 32 at the upstream end between the side plate 23 on one side in the horizontal direction.
- An electrode component 5 having an ignition electrode 51, a ground electrode 52, and a frame rod 53 that passes through the front plate 26 of the combustion housing 2 and protrudes into the combustion housing 2 is mounted on the side plate 26.
- the electrode part 5 is provided with a viewing window 54 through which the inside of the combustion housing 2 can be visually confirmed.
- a water jacket 6 is provided as a cooling means for cooling the combustion casing 2 at a portion between the burner 1 of the combustion casing 2 and the heat exchanger 3.
- a hot water outlet 61 that opens in the lateral direction to connect the hot water supply passage.
- the water passing through the heat exchanger 3 (hot water) is the outflow side jacket portion from the inlet side jacket portion 6in via the first jacket portion 61 and the second jacket portion 6 2 and the third jacket portion 6 3 It flows to 6out and is supplied from the hot water outlet 61 to the hot water supply passage.
- the second jacket portion 6 2 is constituted by a recess 6 2 a cover plate 6 2 b which recess covering 6 2 a of Toko in the lateral inward formed laterally one side of the side plate 23 of the combustion housing 2 Is done. Also, the jacket portions 6in and 6out on the inflow side and the outflow side also have inward recesses 6ina and 6outa formed in the side plate 24 on the other side in the lateral direction of the combustion housing 2 and a cover plate covering the recesses 6ina and 6outa. 6inb and 6outb.
- the side plate 23 and the front side plate 26 of the rear side plate 25 and the lateral one side combustion housing 2 flows respectively first jacket portion 61 and the second jacket portion 6 2 and the third jacket portion 6 3 water It is cooled by.
- fourth jacket portion 6 4 is provided extending rearward toward the upper portion of the outflow-side jacket portion 6out in the vicinity of the inlet-side jacket portion 6in. According to this, both the jacket portion 6in the inflow side and the outflow side of the lateral other side of the side plate 24 of the combustion plate 2, portions between 6out is cooled by water in the fourth the jacket portion 6 4.
- the fourth jacket portion 6 4 is constituted by a cover plate 6 4 b for covering the recess 6 4 a recess 6 4 a of Toko in the lateral direction inwardly formed in the side plate 24. Then, 6 4 a and the cover plate 6 4 b depression of the fourth jacket portion 6 4 is continuous with recess 6outa and the cover plate 6outb the outflow-side jacket portion 6out.
- the fourth jacket portion 6 4 extends horizontally rearward from the upper portion of the outflow-side jacket portion 6out, when air bubbles generated in the local heat has flowed from the outlet side jacket portion 6out the fourth jacket portion 6 4, the 4 become jacket section 6 4 easy bubbles accumulate. A portion of the bubble of the fourth jacket portion 6 4 is accumulated because not be cooled with water, elevated temperature, scale tends to accumulate, the durability is deteriorated.
- the cross-sectional center O1 of the fourth distal end of the inflow-side jacket portion 6in side of the jacket portion 6 4 is located below the cross-sectional center O2 of the tap hole 61 4 to form a jacket portion 6 4.
- the height difference is given to between the outflow position 61 distal portion of the fourth jacket portion 6 4, natural convection in the fourth inner jacket portion 6 4 is promoted. Therefore, even if air bubbles by the local heat to the fourth jacket portion 6 4 flows, the bubbles are carried to the tap hole 61 in the flow due to natural convection, it is possible to suppress the air bubbles accumulated in the fourth jacket portion 6 4. Accordingly, in the fourth jacket portion 6 temperature rise of 4 due to the air bubbles are accumulated, the scale can be prevented durability accumulate deteriorates.
- the upper surface of the fourth jacket portion 64 is inclined upwardly from the tip portion near the inflow side jacket portion 6in toward the upper surface of the portion where the outlet 61 of the outflow side jacket portion 6out is provided. Formed on the surface. Therefore, bubbles are likely to flow to the tap hole 61 side along the upper surface of the fourth jacket portion 6 4, can be more effectively prevented that the air bubbles collected in the fourth jacket portion 6 4.
- the heat exchanger 3 for hot water supply is stored in the combustion housing 2, but a heat exchanger for uses other than hot water supply for heating or the like may be stored in the combustion housing 2.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
Description
そして、熱交換器を通過した水が流入側ジャケット部から第1ジャケット部と第2ジャケット部と第3ジャケット部とを介して流出側ジャケット部に流れ、出湯口からこれに接続した給湯路に水(温水)が供給されるようにしている。また、このものでは、流出側ジャケット部の上部から流入側ジャケット部に向けて前後一方にのびる第4ジャケット部を設け、燃焼筐の横方向他側の側板の流入側ジャケット部と流出側ジャケット部との間の部分を第4ジャケット部で冷却できるようにしている。
Claims (2)
- 混合気を下向きに噴出するバーナと、バーナから噴出する混合気の燃焼空間を囲う、バーナの下側に設けられた燃焼筐とを備え、燃焼筐内の下部に熱交換器が配置された燃焼装置であって、バーナと熱交換器との間の燃焼筐の部分に、燃焼筐を冷却する冷却手段としてウォータジャケットが設けられ、このウォータジャケットは、燃焼筐の前後一方の側板に設けられた横方向にのびる第1ジャケット部と、燃焼筐の前後他方の側板に設けられた横方向にのびる第3ジャケット部と、燃焼筐の横方向一側の側板に設けられた、第1ジャケット部と第3ジャケット部とを接続する前後方向にのびる第2ジャケット部と、燃焼筐の横方向他側の側板の前後一方寄りの部分に設けられた、熱交換器を通過した水を第1ジャケット部に導く流入側ジャケット部と、燃焼筐の横方向他側の側板の前後他方寄りの部分に設けられた、第3ジャケット部からの水が流入する流出側ジャケット部とで構成され、流出側ジャケット部に、上部の出湯口が設けられると共に、流出側ジャケット部の上部から流入側ジャケット部の近傍位置に向けて前後一方にのびる第4ジャケット部が設けられるものにおいて、
第4ジャケット部は、その流入側ジャケット部寄りの先端部の断面中心が出湯口の断面中心より下方に位置するように形成されることを特徴とする燃焼装置。 - 前記第4ジャケット部の上面は、前記先端部から前記流出側ジャケット部の前記出湯口を設けた部分の上面に向けて上方に傾斜した傾斜面に形成されることを特徴とする請求項1記載の燃焼装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/063,769 US10746397B1 (en) | 2015-12-25 | 2016-10-03 | Combustion apparatus |
KR1020187021534A KR102514191B1 (ko) | 2015-12-25 | 2016-10-03 | 연소 장치 |
CN201680074663.5A CN108369006B (zh) | 2015-12-25 | 2016-10-03 | 燃烧装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015253498A JP6542659B2 (ja) | 2015-12-25 | 2015-12-25 | 燃焼装置 |
JP2015-253498 | 2015-12-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017110020A1 true WO2017110020A1 (ja) | 2017-06-29 |
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ID=59089809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2016/004449 WO2017110020A1 (ja) | 2015-12-25 | 2016-10-03 | 燃焼装置 |
Country Status (5)
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US (1) | US10746397B1 (ja) |
JP (1) | JP6542659B2 (ja) |
KR (1) | KR102514191B1 (ja) |
CN (1) | CN108369006B (ja) |
WO (1) | WO2017110020A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6734708B2 (ja) * | 2016-06-02 | 2020-08-05 | リンナイ株式会社 | 熱源機 |
JP7035477B2 (ja) | 2017-11-21 | 2022-03-15 | 株式会社ノーリツ | 熱交換器および温水装置 |
JP7135325B2 (ja) * | 2018-01-24 | 2022-09-13 | 株式会社ノーリツ | 熱交換装置および熱源機 |
JP7167501B2 (ja) | 2018-06-26 | 2022-11-09 | 株式会社ノーリツ | 熱交換器および温水装置 |
JP7119712B2 (ja) * | 2018-07-27 | 2022-08-17 | 株式会社ノーリツ | 燃焼装置および温水装置 |
JP7357208B2 (ja) * | 2019-11-26 | 2023-10-06 | 株式会社ノーリツ | 熱交換器およびこれを備えた温水装置 |
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JPS57190335U (ja) * | 1981-05-29 | 1982-12-02 | ||
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JPH10267414A (ja) * | 1997-03-19 | 1998-10-09 | Gastar Corp | 一缶二水路給湯器 |
JP2004278983A (ja) * | 2003-03-18 | 2004-10-07 | Kyungdong Boiler Co Ltd | 上向燃焼による凝縮潜熱回収コンデンシングガスボイラー |
JP2004347230A (ja) * | 2003-05-22 | 2004-12-09 | Kyungdong Boiler Co Ltd | ガスボイラーの燃焼室 |
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JP4961925B2 (ja) * | 2006-09-19 | 2012-06-27 | 株式会社ノーリツ | 温水装置 |
JP5479962B2 (ja) * | 2010-03-17 | 2014-04-23 | リンナイ株式会社 | ボイラ用プレート式バーナ |
JP5771519B2 (ja) * | 2011-12-26 | 2015-09-02 | リンナイ株式会社 | 潜熱熱交換器、及び給湯装置 |
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2015
- 2015-12-25 JP JP2015253498A patent/JP6542659B2/ja active Active
-
2016
- 2016-10-03 US US16/063,769 patent/US10746397B1/en active Active
- 2016-10-03 WO PCT/JP2016/004449 patent/WO2017110020A1/ja active Application Filing
- 2016-10-03 KR KR1020187021534A patent/KR102514191B1/ko active IP Right Grant
- 2016-10-03 CN CN201680074663.5A patent/CN108369006B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57190335U (ja) * | 1981-05-29 | 1982-12-02 | ||
JPS63168757U (ja) * | 1987-04-24 | 1988-11-02 | ||
JPH10267414A (ja) * | 1997-03-19 | 1998-10-09 | Gastar Corp | 一缶二水路給湯器 |
JP2004278983A (ja) * | 2003-03-18 | 2004-10-07 | Kyungdong Boiler Co Ltd | 上向燃焼による凝縮潜熱回収コンデンシングガスボイラー |
JP2004347230A (ja) * | 2003-05-22 | 2004-12-09 | Kyungdong Boiler Co Ltd | ガスボイラーの燃焼室 |
Also Published As
Publication number | Publication date |
---|---|
CN108369006A (zh) | 2018-08-03 |
US10746397B1 (en) | 2020-08-18 |
KR20180097728A (ko) | 2018-08-31 |
KR102514191B1 (ko) | 2023-03-27 |
JP6542659B2 (ja) | 2019-07-10 |
JP2017116203A (ja) | 2017-06-29 |
US20200271315A1 (en) | 2020-08-27 |
CN108369006B (zh) | 2019-08-20 |
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