WO2003052329A1 - Chauffe-eau electrique du type a protection contre les chocs electriques - Google Patents

Chauffe-eau electrique du type a protection contre les chocs electriques Download PDF

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Publication number
WO2003052329A1
WO2003052329A1 PCT/CN2002/000899 CN0200899W WO03052329A1 WO 2003052329 A1 WO2003052329 A1 WO 2003052329A1 CN 0200899 W CN0200899 W CN 0200899W WO 03052329 A1 WO03052329 A1 WO 03052329A1
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WO
WIPO (PCT)
Prior art keywords
water
outlet
inlet
liner
pipe
Prior art date
Application number
PCT/CN2002/000899
Other languages
English (en)
Chinese (zh)
Other versions
WO2003052329B1 (fr
Inventor
Kaifeng Li
Xiangpeng Xiao
Quanduo Hou
Bingquan Chen
Shengping Xu
Renhua Wang
Original Assignee
Haier Group Corporation
Qingdao Develepment Zone Haier Water Heaters 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
Priority claimed from CN01269174U external-priority patent/CN2519196Y/zh
Priority claimed from CN 01269173 external-priority patent/CN2519190Y/zh
Application filed by Haier Group Corporation, Qingdao Develepment Zone Haier Water Heaters Co., Ltd. filed Critical Haier Group Corporation
Priority to AU2002354163A priority Critical patent/AU2002354163A1/en
Publication of WO2003052329A1 publication Critical patent/WO2003052329A1/fr
Publication of WO2003052329B1 publication Critical patent/WO2003052329B1/fr

Links

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
    • F24H1/18—Water-storage heaters
    • F24H1/185—Water-storage heaters using electric energy supply

Definitions

  • the invention relates to the safety protection technology of an electric water heater, in particular to an electric water heater that prevents electric shock. Background technique
  • leakage prevention methods There are mainly two types of leakage prevention methods commonly used in existing electric water heaters.
  • the above two protection methods both make the user's safety more dependent on the leakage protection device. In the event that the leakage switch or the automatic detection alarm is damaged or fails, an accident will occur if the leakage occurs, or even threaten the user. This is a big hidden danger in the existing electric water heater leakage protection technology.
  • the purpose of the present invention is to solve the shortcomings of the prior art, and provide an economical, safe and practical technical solution of electric water heaters against electric shock.
  • the technical solution of the present invention is to provide an electric shock-proof electric water heater, which includes a shell, an inner tank, an electric heater, a water inlet pipe, and a water outlet pipe.
  • a water outlet liner wherein the water inlet liner and the water outlet liner are insulating tubes.
  • two pipe bodies of a water outlet liner and a water inlet liner are disposed on the water heater, and the two pipes are respectively connected to the water inlet pipe and the water outlet pipe of the casing.
  • two pipe bodies of a water outlet lining and a water inlet lining are disposed outside the inner liner, and the two pipes are respectively connected to the water inlet and outlet pipes of the inner liner.
  • the two pipe bodies of the water outlet liner and the water inlet liner are disposed in the inner cavity.
  • the electric water heater further includes a decorative cover, which covers the water inlet pipe and the water outlet pipe on the outer shell, and is additionally provided with a water inlet wire head and a water outlet wire head; two pipes of the water outlet liner and the water inlet liner It is arranged in the cavity formed by the shell and the decorative cover, and the two pipes are respectively connected with the inner ends of the water inlet wire head and the water outlet wire head on the decorative cover.
  • the inlet and outlet liners in the inner tank are straight, spiral, u-shaped, M-shaped, curved, or a combination of straight and sleeve.
  • the straight tube and the sleeve are combined into a single-piece structure.
  • the tube portion of the straight tube is located in the sleeve, and the two water pipes share a central axis, and the top ends are connected as a whole.
  • the wall of the straight pipe near the top is provided with a through hole, the gap between the two water pipes is a water flow channel, and the water outlet at the lower end of the sleeve is in communication with the inner tank.
  • the two water pipes are insulated pipes made of insulating materials.
  • the combined structure of the straight pipe and the sleeve is a split type, the sleeve covers the pipe body part of the inner tube, and the two water pipes share a central axis at the top of the two water pipes.
  • the joint surface is fixed by a fastening connection.
  • the fastening connection members are bolts, nuts, hot-melt or self-tapping screws, or other means of connection;
  • the straight inlet pipe, the outlet straight pipe and the casing are bolted with the nut at the top junction Or self-tapping screws. .
  • the outer edges of the lower ends of the inlet and outlet liners at the junction of the inlet and outlet liners and the inlet and outlet pipes are provided with threads to be fixedly connected with the internal wall threads of the inlet and outlet pipes.
  • the outer peripheral surface of the lower ends of the inlet and outlet lining pipes and the internal wall surfaces of the inlet and outlet pipes are clamped in a yin-yang shape.
  • the electric water heater has a convex disk on the wall of the lower end of the inlet and outlet liners where the inlet and outlet liners are connected to the inlet and outlet pipes, and a nut is connected to the inlet and outlet through a nut at the convex disk.
  • the external threads on the water pipe cooperate to fix the inlet and outlet liners.
  • the water inlet liner, the water outlet liner, the straight tube, and the sleeve, and the inner wall of the tube is an insulating material.
  • the electric water heater wherein the length from the water inlet to the water outlet of the water inlet liner and the water outlet liner is L> 53r 2 .
  • the water heater leakage current is set to 10mA, which can ensure the safety of the user.
  • the tap water resistivity P is equal to 1300 ⁇ -cm
  • the length of the insulated pipe is L
  • the inner hole radius of the insulated pipe is r
  • the dielectric resistance of water is R
  • the resistivity of water is P
  • the design concept of the present invention is to place the insulation tube outside the outer shell or the inner liner, or in the interlayer or inner liner cavity, and use coiled or curved shapes to coil, or use U-shaped, M-shaped or Structures such as water straight pipe and casing cover are used to increase the flow of the water intake route, thereby achieving a safety length of 1 53 '1: 2 without occupying external space.
  • FIG. 1 is an installation structure diagram of the inlet and outlet lining pipes of the first embodiment of the electric shock-proof electric water heater according to the present invention
  • FIG. 2 is an installation structure diagram of the inlet and outlet lining pipes of the anti-shock electric water heater according to the first embodiment of the present invention
  • FIG. 3 is a cross-sectional view of a combined structure of a water inlet straight pipe and a sleeve of the electric shock-proof electric water heater according to the present invention
  • FIG. 4 is a sectional view of a structure in which a water inlet liner is bent into a box shape according to a third embodiment of the electric shock-proof electric water heater according to the present invention
  • FIG. 5 is a sectional view of a structure in which the water inlet liner is bent into an M shape according to the fourth embodiment of the electric shock-proof electric water heater according to the present invention
  • FIG. 6 is a sectional view of the structure of the fifth embodiment of the electric shock-proof electric water heater of the present invention, in which the water inlet liner is bent into an inverted U shape;
  • Fig. 7 shows a sixth embodiment of the anti-shock electric water heater according to the present invention.
  • FIG. 8 shows the seventh embodiment of the electric shock-proof electric water heater according to the present invention.
  • the water inlet liner is a composite sleeve type.
  • the outlet liner is bent into an "N"shape;
  • Fig. 9 shows the eighth embodiment of the electric shock-proof electric water heater of the present invention.
  • Both the inlet liner and the outlet liner are of the composite sleeve type. detailed description
  • this is a first embodiment of an electric shock-proof electric water heater according to the present invention.
  • Water inlet and outlet liners are installed on the water inlet pipe 3 and the water outlet pipe 4 of the casing 14.
  • the water inlet pipe 3 connected to the water inlet of the heating tank 5 from the electric water heater 20 extends out of the shell 14 and is connected to the water liner 1.
  • the water outlet pipe 4 connected to the water supply opening of the heating tank 5 to the electric water heater 20 extends from the housing 14
  • the water outlet liner 15, the water inlet liner 1 and the water outlet liner 15 are made of high temperature and high pressure resistant plastic (such as polytetrafluoroethylene plastic), and the inner wall of the water outlet liner may be an insulating material.
  • the water intake route is: water enters from the lower end inlet of the water intake liner 1 through the water intake liner 1 and the upper part of the water inlet pipe 3 ⁇ enters the liner 5; the water route is: water from the liner 5-through the water outlet 4 As soon as the upper port of the inlet liner 15 enters the outlet liner 15, the outlet port 15 of the outlet liner 15 is discharged by the shower head.
  • the above-mentioned water flow route only needs to satisfy the requirement of L> 53 r 2 (r is the inner hole radius of the inlet liner 1 or the outlet liner 15).
  • the inner diameter of the inlet liner 1 and the outlet liner 15 is 0.5 cm, and the length of the inlet liner 1 and the outlet liner 15 should be greater than 3.32 cm according to the proportional relationship between the pipe length and the tube inner diameter. 1 and the length of the outlet liner 15 are 3.4-5 cm, which can constitute a reliable anti-leakage isolation device for the water heater. ⁇
  • FIG. 2 a second embodiment of the electric shock-proof electric water heater according to the present invention.
  • a decorative cover 21 is installed on the bottom of the shell 14 of the electric water heater 20 ′, and the water inlet wire head 22 and the water outlet wire head 23 are installed on the decorative cover 21.
  • 1 and the water outlet liner 15 are coiled and arranged in a cavity formed by the casing 14 and the decorative cover 21 in a coiled or curved shape.
  • the other end of the water inlet liner 1 and the water outlet liner 15 and the water inlet 22 on the decoration cover 21 It is connected to the inner end of the outlet wire head 23 respectively.
  • the water intake route is: water enters the water inlet liner 1 from the water inlet 22, enters the lower end of the inlet, passes through the water inlet liner 1, and enters the inner liner 5 from the upper part of the inlet 3;
  • the water exit route is: water from the inner liner 5 Entering the outlet pipe 4—entering the upper port of the outlet liner 15 through the outlet liner 15 and the outlet of the outlet liner 15—through the outlet wire head 23—released by the shower head.
  • the water inlet liner 1 and the water outlet liner 15 are still made of high temperature and pressure resistant plastic (such as polytetrafluoroethylene plastic).
  • the inner wall of the pipe can be an insulating material.
  • the inner diameter of the pipe is 0.5 cm.
  • the proportional relationship with the inner diameter of the pipe calculates that the length of the inlet liner 1 and the outlet liner 15 should be greater than 3.32 cm, and the length of the inlet liner 1 and the outlet liner 15 is 5-10 cm to form a water heater. Reliable anti-leakage isolation device.
  • the water inlet liner 1 is a combination of a straight pipe and a sleeve 6, and its structure is: a sleeve 6 is a pipe body that connects the water inlet liner 1 to the inner liner 5.
  • the two water pipes share a central axis, and the two water pipes 1, 6 are fixed at the joint of the top surface by bolts 7, nuts 11; the bolts 7, nuts 11 can also be omitted, and the outer edge of the upper end of the inlet liner 1 can be provided
  • the thread is fixedly connected with the inner wall of the casing 6; a through-hole 16 is opened in the wall of the inlet liner 1 near the top; the gap between the two water pipes 1 and 6 is a water flow channel 17; and the water outlet 18 at the lower end of the casing 6 Communicates with the inner liner 5; a convex disk 19 is formed on the nozzle wall of the water inlet liner 1 at the junction of the lower end of the water inlet liner 1 and the water inlet 3, and the nut 19 is connected to the water inlet through the nut 2 at the convex disk 19 4
  • the external threads on the outer peripheral surface cooperate to fix the water inlet liner 1.
  • the water inlet liner 1 and the sleeve 6 may also be integrated, that is, the two water pipes 1 and 6 are integrated at the top, and the two water pipes share a central axis, and the fixed bolts 7 and nuts 11 are omitted, but the water inlet
  • the lower end of the liner 1 has no convex disk 19, and is fixedly connected to the water inlet pipe 4 by other connection methods, such as a male and female polygonal snap connection, or the outer edge of the lower end of the water inlet liner 1 is provided with a screw thread to be fixed to the inner wall surface of the water inlet pipe 4 .
  • the water inlet lining 1 and the sleeve 6 are insulating pipes made of insulating materials, and the water outlet lining 15 is also an insulating pipe made of insulating materials.
  • the above-mentioned insulating pipes only need to be made of insulating materials on the inner wall of the pipes.
  • the water inlet route is: Water enters the water inlet liner 1 through the inlet of the lower end of the water inlet liner 1 through the water inlet liner 1 through p3 ⁇ 4 ⁇ through the upper through hole 16—through the water flow channel 17 ⁇ water outlet 18—in the liner 5; the water outlet is: The inner liner 5 enters the upper port of the outlet liner 15 through the outlet liner 15 and the lower outlet 15 passes through the outlet pipe 4 and is discharged by the shower head.
  • the above water flow route only needs to satisfy the requirement of L> 53 r 2 (r is the radius of the inner hole of the inlet liner 1 or the outlet liner 15). With the above structure, the zigzag length of the water flow route is increased, and the safety requirements are met.
  • Embodiment 3 Referring to FIG. 4, in order to meet the requirements of 1 53 r 2 , this is a structure structure in which the water inlet liner 1 is made into a frame shape, which uses both the space of the inner liner 5 and the length of the insulation tube. .
  • FIG. 5 shows that the water inlet liner 1 is made into a "M" -shaped structure.
  • Embodiment 5 Referring to FIG. 6, this is a structure in which the water inlet liner 1 is made into an inverted "U" shape.
  • the outlet liner 15 may also adopt the design structure of the inlet liner 1 described above, or it may be slightly modified and used simultaneously or separately with the inlet liner 1, as shown in Fig. 5, Fig. 6, and Fig. 7.
  • the sixth embodiment is shown in FIG. 7.
  • the water outlet liner 15 is a horizontal composite sleeve over the inner liner 5.
  • the water inlet pipe 3 and the water outlet pipe 4 of the electric water heater 20 are each connected with an external liner.
  • the seventh embodiment is shown in FIG. 8.
  • the water inlet liner 1 is a composite sleeve type, and the water outlet liner 15 is made into an "N" shape.
  • the water inlet pipe 3 and the water outlet pipe 4 of the electric water heater 20 are each connected with an external liner. '
  • the eighth embodiment is shown in FIG. 9.
  • Both the water inlet liner 1 and the water outlet liner 15 are of a composite casing type, and the water inlet pipe 3 and the water outlet pipe 4 of the electric water heater 20 may or may not be connected to an external liner.
  • the shower heads are connected, as in the old-fashioned connection method.

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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)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

Cette invention se rapporte à une protection sûre pour chauffe-eau électrique et décrit un chauffe-eau électrique du type protégé contre les chocs électriques, qui comprend une enveloppe, un réservoir souple interne, un organe chauffant électrique, un tuyau d'entrée, un tuyau de sortie, un tube à revêtement intérieur d'entrée et un tube à revêtement intérieur de sortie. Le tube à revêtement intérieur d'entrée et le tube à revêtement intérieur de sortie sont des tubes isolants et ils sont placés à l'extérieur du réservoir souple interne ou à l'intérieur de celui-ci. Le tube à revêtement intérieur d'entrée et le tube à revêtement intérieur de sortie sont conçus sous la forme d'une ligne courbe ou brisée ou en forme de U renversé, en forme de M ou sous la forme d'un tube droit d'entrée et d'un manchon combinés, en vue d'augmenter la longueur de méandre de l'écoulement d'eau. La longueur entre l'entrée et la sortie du tube à revêtement intérieur d'entrée ou du tube à revêtement intérieur de sortie est supérieure à 53r2, de façon à pouvoir empêcher les fuites de courant.
PCT/CN2002/000899 2001-12-19 2002-12-19 Chauffe-eau electrique du type a protection contre les chocs electriques WO2003052329A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002354163A AU2002354163A1 (en) 2001-12-19 2002-12-19 An electricshock-prevention type electric water heater

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN01269174.7 2001-12-19
CN01269173.9 2001-12-19
CN01269174U CN2519196Y (zh) 2001-12-19 2001-12-19 防触电式电热水器
CN 01269173 CN2519190Y (zh) 2001-12-19 2001-12-19 内藏绝缘管防触电型电热水器

Publications (2)

Publication Number Publication Date
WO2003052329A1 true WO2003052329A1 (fr) 2003-06-26
WO2003052329B1 WO2003052329B1 (fr) 2003-08-21

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Application Number Title Priority Date Filing Date
PCT/CN2002/000899 WO2003052329A1 (fr) 2001-12-19 2002-12-19 Chauffe-eau electrique du type a protection contre les chocs electriques

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AU (1) AU2002354163A1 (fr)
WO (1) WO2003052329A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102759198A (zh) * 2012-07-24 2012-10-31 广东威博电器有限公司 一种电热水器用的电子式防触电装置
CN105546809A (zh) * 2016-01-29 2016-05-04 宁波帅康热水器有限公司 一种电热水器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4111954C1 (en) * 1991-04-12 1992-03-19 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden, De Water heater with enamelled metal container - having electric heating element soldered to baseplate and protective anode
CN2289174Y (zh) * 1996-11-15 1998-08-26 吴勇为 电热水器的防漏电隔离装置
CN2462305Y (zh) * 2000-08-31 2001-11-28 向可为 电热水器安全装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4111954C1 (en) * 1991-04-12 1992-03-19 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden, De Water heater with enamelled metal container - having electric heating element soldered to baseplate and protective anode
CN2289174Y (zh) * 1996-11-15 1998-08-26 吴勇为 电热水器的防漏电隔离装置
CN2462305Y (zh) * 2000-08-31 2001-11-28 向可为 电热水器安全装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102759198A (zh) * 2012-07-24 2012-10-31 广东威博电器有限公司 一种电热水器用的电子式防触电装置
CN102759198B (zh) * 2012-07-24 2015-10-21 广东威博电器有限公司 一种电热水器用的电子式防触电装置
CN105546809A (zh) * 2016-01-29 2016-05-04 宁波帅康热水器有限公司 一种电热水器

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Publication number Publication date
AU2002354163A1 (en) 2003-06-30
WO2003052329B1 (fr) 2003-08-21

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