US20200011570A1 - Hot Water Generator - Google Patents

Hot Water Generator Download PDF

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Publication number
US20200011570A1
US20200011570A1 US16/490,144 US201816490144A US2020011570A1 US 20200011570 A1 US20200011570 A1 US 20200011570A1 US 201816490144 A US201816490144 A US 201816490144A US 2020011570 A1 US2020011570 A1 US 2020011570A1
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US
United States
Prior art keywords
heater
hot water
tubular portion
housing
tubular
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.)
Abandoned
Application number
US16/490,144
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English (en)
Inventor
Sung-hee Lee
Sung-Worl Jin
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.)
Coway Co Ltd
Original Assignee
Coway Co 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 Coway Co Ltd filed Critical Coway Co Ltd
Assigned to COWAY CO., LTD. reassignment COWAY CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JIN, SUNG-WORL, LEE, SUNG-HEE
Assigned to COWAY CO., LTD. reassignment COWAY CO., LTD. CORRECTIVE ASSIGNMENT TO CORRECT THE COUNTRY OF THE RECEIVING PARTY PREVIOUSLY RECORDED ON REEL 050220 FRAME 0101. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Assignors: JIN, SUNG-WORL, LEE, SUNG-HEE
Publication of US20200011570A1 publication Critical patent/US20200011570A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • F24H1/101—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 using electric energy supply
    • F24H1/102—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 using electric energy supply with resistance
    • F24H1/105—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 using electric energy supply with resistance formed by the tube through which the fluid flows
    • 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
    • F24H9/001—Guiding means
    • F24H9/0015—Guiding means in water channels
    • 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
    • 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
    • F24H9/18—Arrangement or mounting of grates or heating means
    • 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
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • 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
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818—Arrangement or mounting of electric heating means

Definitions

  • the present disclosure relates to a hot water generator.
  • a hot water generator provided in a bidet includes a housing, a ceramic heater mounted in the housing, and a fixing member for fixing the ceramic heater to the housing.
  • the housing and the ceramic heater have a cylindrical shape, and are usually disposed coaxially.
  • the fixing member is provided with a water inlet communicating with an inside of the ceramic heater, and a housing having a water outlet.
  • water flowing into the water inlet passes through the inside of the ceramic heater, flows along the outside of the ceramic heater, and is discharged through the water outlet.
  • the hot water generator thus configured has a simple flow path, such that water passing through the heater does not sufficiently contact a heat generating surface of the heater, which causes heat a waste of heat.
  • Patent Document 1 Korean Patent Publication No. KR 10-1504642
  • An aspect of the present disclosure may provide a hot water generator capable of increasing efficiency of a heater for generating hot water.
  • a hot water generator comprises: a housing having a water inlet, a water outlet, and an internal space; and a heater disposed in the internal space of the housing, wherein the housing is provided with a helical flow formation unit which enables water flowing into the internal space to helically spin and flow along an external surface of the heater.
  • the housing may include a body having first and second tubular portions having a circular tubular shape into which the heater is insertedly disposed, a cap member coupled to one end of the body, and a heater installation member coupled to the other end of the body and having the heater installed thereon.
  • a flow path portion for guiding a flow path of water may be provided at one end of the body, the flow path portion may be configured such that an interval of a flow path portion connected to the first tubular portion is greater than an interval of a flow path portion connected to the second tubular portion.
  • a ratio of the interval of the flow path portion connected to the first tubular portion and the interval of the flow path portion connected to the second tubular portion may be 2:1.
  • the heater may have first and second heaters and have a bar shape having a circular cross-section.
  • the housing may have first and second tubular portions having a circular tubular shape into which the heater is insertedly disposed.
  • the helical flow formation unit may be formed as a protrusion or a groove formed in an internal surface of the first and second tubular portions.
  • a pitch of the helical flow formation unit formed on the internal surface of the first tubular portion may be greater than a pitch of the helical flow formation unit formed on the internal surface of the second tubular portion.
  • the water inlet and the water outlet may be disposed on the other end of the body.
  • FIG. 1 is a perspective view illustrating a hot water generator according to a first embodiment of the present disclosure
  • FIG. 2 is an exploded perspective view illustrating a hot water generator according to a first embodiment of the present disclosure
  • FIG. 3 is a front view illustrating one end portion of a housing provided in the hot water generator according to a first embodiment of the present disclosure.
  • FIG. 4 is a partially cutaway perspective view illustrating a body of a housing provided in a hot water generator according to a second embodiment of the present disclosure.
  • FIG. 1 is a perspective view illustrating a hot water generator according to a first embodiment of the present disclosure
  • FIG. 2 is an exploded perspective view illustrating a hot water generator according to a first embodiment of the present disclosure
  • FIG. 3 is a front view illustrating one end portion of a housing provided in the hot water generator according to a first embodiment of the present disclosure.
  • a hot water generator 100 may include a housing 120 and a heater 160 .
  • the housing 120 has a water inlet 122 and a water outlet 124 and has an internal space. Meanwhile, the housing 120 may include a body 130 having first and second tubular portions 132 and 134 having a circular tubular shape into which the heater 160 is insertedly disposed, a cap member 140 coupled to one end of the body 130 , and a heater installation member 150 coupled to the other end of the body 130 and having the heater 160 installed thereon.
  • first and second tubular portions 132 and 134 have circular tubular shapes, the present disclosure is not limited thereto, and a shape of the first and second tubular portions 132 and 134 maybe variously changed.
  • the shape of the first and second tubular portions 132 and 134 may have a rectangular tubular shape.
  • the water inlet 122 is formed at one end portion of the first tubular portion 132
  • the water outlet 134 is formed at one end portion of the second tubular portion 134 .
  • the housing 120 may be provided with a helical flow formation unit 136 which enables the water flowing into the internal space to helically spin and flow along an external surface of the heater 160 .
  • the helical flow formation unit 136 may be composed of a protrusion or a groove formed on the internal surfaces of the first and second tubular portions 132 and 134 .
  • a pitch P 1 of the helical flow formation unit 136 formed on the internal surface of the first tubular portion 132 and a pitch P 2 of the helical flow formation unit 136 formed on the internal surface of the second tubular portion 134 may be the same as each other.
  • a flow path portion 138 for guiding the flow path of water is provided at one end of the body 130 .
  • An interval (a) of the flow path portion 138 connected to the first tubular portion 132 may be greater than an interval (b) of the flow path portion 138 connected to the second tubular portion 134 .
  • a ratio of the interval (a) of the flow path portion 138 connected to the first tubular portion 132 and the interval (b) of the flow path portion 138 connected to the second tubular portion 134 may be 2:1.
  • a flow rate of water, being slowed, passing through the first tubular portion 132 may be increased through the flow path portion 138 to flow into the second tubular portion 134 , such that the water may smoothly pass through the second tubular portion 134 .
  • the helical flow formation unit 136 may be formed to have an angle of approximately 60 to 70 degrees with respect to a horizontal surface. Further, a helical pitch interval of the helical flow formation unit 136 may be, for example, approximately 9 to 11 mm.
  • the helical pitch interval of the helical flow formation unit 136 is narrow, a pressure loss may be generated and a hot water stagnation section may be generated. Therefore, as described above, since the helical pitch interval of the helical flow formation unit 136 is approximately 9 to 11 mm, it is possible to reduce occurrence of the hot water stagnation section.
  • the heater 160 is disposed in the internal space of the housing 120 . Meanwhile, the heater 160 may include a first heater 162 disposed inside the first tubular portion 132 and a second heater 164 disposed inside the second tubular portion 134 .
  • first and second heaters 162 and 164 may be fixedly installed to the heater installation member 150 , and the first and second heaters 162 and 164 may have a bar shape having a circular cross-section.
  • a minimum interval between an external surface of the first heater 162 and an internal surface of the first tubular portion 132 may be approximately 1 mm.
  • the minimum interval between the first heater 162 and the first tubular portion 132 is approximately 1 mm or more, it is possible to reduce occurrence of the hot water stagnation section due to the pressure loss in the first tubular portion 132 .
  • the minimum interval between the second heater 164 and the second tubular portion 134 may also be approximately 1 mm.
  • the helical flow formation unit 136 enables the water flowed into the housing 120 to helically spin and flow along an external surface of the heater 160 .
  • the efficiency of the heater 160 may be increased by increasing a contact time between the water and the heater 160 , such that how water of a target temperature may be obtained.
  • FIG. 4 is a partially cutaway perspective view illustrating a body of a housing provided in a hot water generator according to a second embodiment of the present disclosure.
  • a pitch P 1 of a helical flow formation unit 236 formed on an internal surface of a first tubular portion 232 may be greater than a pitch P 2 of a helical flow formation unit 236 formed on an internal surface of a second tubular portion 234 .
  • the flowing water may be smoothly helically spun from a water inlet 222 to a water outlet 224 and flowed.
  • a pitch of the helical flow formation unit 236 at the second tubular portion 234 is reduced, a flow velocity, being slowed at the second tubular portion 234 , may be increased, such that the water may be helically spun and the water may be smoothly flowed.
  • the water flowed into the housing 120 (referring to. FIG. 2 ) through the helical flow formation unit 236 may be helically spun along the external surface of the heater 160 and may be flowed. Accordingly, the efficiency of the heater 160 may be increased by increasing the contact time between the water and the heater 160 , such that hot water of a target temperature may be obtained.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
US16/490,144 2017-03-17 2018-03-16 Hot Water Generator Abandoned US20200011570A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR10-2017-0033887 2017-03-17
KR1020170033887A KR20180106164A (ko) 2017-03-17 2017-03-17 온수 발생 장치
PCT/KR2018/003122 WO2018169363A1 (ko) 2017-03-17 2018-03-16 온수 발생 장치

Publications (1)

Publication Number Publication Date
US20200011570A1 true US20200011570A1 (en) 2020-01-09

Family

ID=63522539

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/490,144 Abandoned US20200011570A1 (en) 2017-03-17 2018-03-16 Hot Water Generator

Country Status (4)

Country Link
US (1) US20200011570A1 (zh)
KR (1) KR20180106164A (zh)
CN (1) CN110431361B (zh)
WO (1) WO2018169363A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4198409A1 (en) * 2021-12-20 2023-06-21 Valeo Autoklimatizace k.s. A heating device for electrically heating a heat transfer fluid

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2118272U (zh) * 1991-10-25 1992-10-07 赵双福 家用电热管式热水器
KR100963052B1 (ko) * 2008-03-04 2010-06-09 이진교 코팅된 나선형 발열선을 이용한 전기 순간온수 발생기엘리먼트
JP2010101508A (ja) * 2008-10-21 2010-05-06 Panasonic Corp 内面溝付き管とその製造方法および内面溝付き管を具備した熱交換器
CN201522079U (zh) * 2009-10-23 2010-07-07 张斌 一种即热式电热水器
CN201680565U (zh) * 2009-11-20 2010-12-22 黄吉彰 即热式电热水器
CN203100496U (zh) * 2013-02-22 2013-07-31 郑州大学 套管式换热器
US20140363146A1 (en) * 2013-06-06 2014-12-11 John Joseph Compton Screw-in heat exchanging element for water heaters
KR20150071857A (ko) * 2013-12-19 2015-06-29 이장우 복수 개의 관통유로가 형성된 발열유닛을 포함하는 순간온수기
CN203824050U (zh) * 2014-04-30 2014-09-10 徐荣兰 一种电热水器
KR101621505B1 (ko) * 2015-06-24 2016-05-16 주식회사 에코본 인덕션 보일러의 발열 장치
KR200482733Y1 (ko) * 2016-02-01 2017-02-27 에너원 주식회사 연소기용 바이오매스 및 고형연료 정량 이송장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4198409A1 (en) * 2021-12-20 2023-06-21 Valeo Autoklimatizace k.s. A heating device for electrically heating a heat transfer fluid
WO2023118025A1 (en) * 2021-12-20 2023-06-29 Valeo Autoklimatizace S.R.O. A heating device for electrically heating a heat transfer fluid

Also Published As

Publication number Publication date
CN110431361A (zh) 2019-11-08
CN110431361B (zh) 2021-07-02
KR20180106164A (ko) 2018-10-01
WO2018169363A1 (ko) 2018-09-20

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Owner name: COWAY CO., LTD., KOREA, DEMOCRATIC PEOPLE'S REPUBL

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEE, SUNG-HEE;JIN, SUNG-WORL;REEL/FRAME:050220/0101

Effective date: 20190726

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