EP3571446A1 - Sicherheitsvorrichtung zum notabschalten eines elektrischen durchlauferhitzers - Google Patents
Sicherheitsvorrichtung zum notabschalten eines elektrischen durchlauferhitzersInfo
- Publication number
- EP3571446A1 EP3571446A1 EP18704402.9A EP18704402A EP3571446A1 EP 3571446 A1 EP3571446 A1 EP 3571446A1 EP 18704402 A EP18704402 A EP 18704402A EP 3571446 A1 EP3571446 A1 EP 3571446A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- safety device
- mating
- silver
- water heater
- 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.)
- Granted
Links
- 230000009849 deactivation Effects 0.000 title abstract 2
- 230000013011 mating Effects 0.000 claims description 52
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 28
- 229910052709 silver Inorganic materials 0.000 claims description 25
- 239000004332 silver Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 229910017727 AgNi Inorganic materials 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/071—Arrangement of safety devices in domestic pipe systems, e.g. devices for automatic shut-off
-
- 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
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices 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
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2028—Continuous-flow heaters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/64—Contacts
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/0252—Domestic applications
- H05B1/0275—Heating of spaces, e.g. rooms, wardrobes
- H05B1/0283—For heating of fluids, e.g. water heaters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
- H01H1/023—Composite material having a noble metal as the basic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/04—Co-operating contacts of different material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H2037/526—Materials for bimetals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2201/00—Contacts
- H01H2201/022—Material
- H01H2201/024—Material precious
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2203/00—Form of contacts
- H01H2203/004—Rivet
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2207/00—Connections
- H01H2207/02—Solder
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
Definitions
- the invention relates to a safety device for emergency shutdown of an electrical instantaneous water heater, the use of a contact rivet as contact in the safety device and a water heater with the safety device.
- the safety devices are contacted by means of contact carriers, which are soldered or welded to the circuit board, to the conductor tracks of the printed circuit board.
- a contact rivet is arranged in the center of the contact carrier and thus forms a conductive connection with a mating contact, which is arranged on the safety device.
- FIG. 1 shows such an embodiment of the prior art, wherein a contact carrier 22 is soldered onto a circuit board 21 and the contact carrier 22 has a contact rivet 23.
- the assembly is very complex, since each contact carrier must be soldered individually in two places and on the other hand, it is due to the often poorly conductive contact carrier at the usual flow heaters high current flows to increased temperature development in the environment of the contacts , which is why additional measures are often required to divert the developed temperature away from the contacts. It is therefore the object of the present invention to provide an improved safety device for a water heater.
- a safety device for emergency shutdown of an electric water heater in particular a water heater, or a heat pump
- the safety device has a contact and a mating contact, which are adapted to direct the current for supplying the water heater in a contacted state and in an open state to interrupt the power supply of the water heater.
- the safety device comprises a holding device for holding the mating contact on a tie rod, wherein the tie rod is adapted to release the holding device and the mating contact from the contact to interrupt a power supply of the device, wherein the safety device is characterized in that the Contact designed as a contact rivet, which is integrated directly into the board.
- Contact carriers used in the prior art form a contact resistance between the contact and the contact carrier located on the board when contacting the contact with the mating contact, and thus during a current flow through the instantaneous heater.
- This contact resistance leads to an increased temperature development, so that additional measures must be taken to keep the temperatures of the board, and derive from the device.
- the contact of the safety device as a contact rivet, which is integrated directly into the circuit board, there is no contact resistance between contact carrier and contact rivet due to the missing contact carrier, and a reduced temperature development is to be expected.
- the contact rivet consists of a contact head and a contact shaft, wherein upon direct integration of the contact rivet the contact shaft is inserted into the opening in the board and the contact head is located on the board.
- the contact that is the contact rivet, consists of solid silver, fine grain silver, in particular AgNi 0, 15, a bimetal or a trimetal.
- the contact that is, the contact rivet, comprising a first contact part and a second contact part, wherein the first contact part makes contact with the countercontact.
- the contact head of the contact rivet consists of the first contact part and the second contact part.
- the first contact part of silver or fine grain AgNi 0, 15 and the second contact part made of copper.
- the first and the second contact part with silver or fine grain silver, in particular AgNi 0, 15 coated to ensure good solderability.
- only the second contact part is coated with silver or fine grain silver, in particular AgNi 0.15, in order to reduce the proportion of silver in the device and nevertheless to achieve good solderability.
- Integrated directly into the circuit board means in particular that the contact rivet is riveted to the circuit board, soldered or both.
- the contact in particular the rivet contact, is adapted to be soldered to the board, for example following the riveting.
- the mating contact consists of solid silver, fine grain AgNi 0, 15 a bimetal or a trimetal. It is further preferred that the mating contact consists of a first mating contact part and a second mating contact part, the first part contacting the contact. It is further preferred that the first mating contact part consists of silver or fine grain AgNi 0, 15, and the second mating contact part consists of copper. In a further embodiment, the first mating contact part and the second mating contact part or only the second mating contact part is coated with silver or fine grain AgNi 0.15 in order to produce a good solderability.
- the holding device has a contact bridge and a spring and the mating contact is arranged on the contact bridge.
- the contact bridge is U-shaped and the U-shaped contact bridge is connected in a center of the contact bridge with a spring which connects the contact bridge with the contact.
- the object is achieved by using a rivet contact as contact in a safety device according to one of the above embodiments, wherein the rivet contact is integrated directly into the circuit board. Furthermore, the task is also through a water heater with a safety device according to one of the above embodiments solved.
- FIG. 1 is a schematic representation of a safety device according to the prior art
- Fig. 3 is a schematic representation of a contact and a mating contact according to an embodiment of the invention.
- Fig. 4 shows a further schematic representation of a contact and a mating contact according to an embodiment of the invention.
- FIG. 2 shows a schematic representation of the security device 1 according to an exemplary embodiment of the invention.
- the safety device 1 in this embodiment has a contact 3 and a mating contact 4.
- the safety device 1 on a holding device, which in turn has a U-shaped contact bridge 10 with a widening 1 1 at the end of each of the legs.
- the contact bridge 10 is connected by means of a contact spring 8 with a contact 6 of the security device 1.
- the safety device 1 separating springs 5, a tie rod 7 and a coil 9, whose function will be described below.
- the contact 3 is designed in an embodiment according to the invention as a contact rivet and connected directly to a printed circuit board 2, in particular riveted, alternatively soldered. Furthermore, the contact rivet can be connected to the printed circuit board 2 by a combination of riveting and soldering. Thus, the contact 3 is in direct contact with the electrical conduction paths used to control and operate the instantaneous water heater on the printed circuit board 2.
- FIG. Fig. 3 shows a schematic representation a contact 3 and a mating contact 4 according to an embodiment of the invention.
- the contact 3 is formed according to an embodiment of the invention as a contact rivet and has a contact head 33 and a contact shaft 34.
- the contact shaft 34 of the contact 3 is introduced into an opening of the printed circuit board 2, so that only the contact head 33 of the contact 3 projects beyond the printed circuit board 2.
- the contact 3 is riveted in the printed circuit board 2.
- a solder 36 may be provided in the opening prior to insertion. The contact 3 can then be soldered to the printed circuit board 2.
- the contact 3 has a first contact part 31 and a second contact part 32.
- the first contact part consists in a preferred embodiment of silver or fine grain AgNi 0, 15 and the second contact portion 32 of the contact 3 is made of copper.
- the complete contact 3 is coated with silver or fine grain AgNi 0.15 silver.
- the contact 3 is designed so that it contacts the mating contact 4 during normal operation of the water heater.
- the mating contact 4 is arranged on the widening 1 1 of the U-shaped contact bridge 10 of the holding device and designed as GegenANDniet.
- the mating contact 4 also has a first mating contact part 41 and a second mating contact part 42.
- the first mating contact part 41 is preferably also formed of silver or fine grain AgNi 0.15 and the second mating contact part 42 of copper.
- the mating contact is then also coated with silver or fine grain AgNi 0, 15.
- FIG. 4 shows another embodiment of the mating contact 4.
- the widening 11 is stamped on and forms a formation 44.
- the mating contact is cut off from a silver wire and plated over the formation 44.
- the plated silver wire forms a contact layer 43.
- This embodiment has the advantage that the silver content at the contacts can be reduced and obstruction of the separation mechanism by protruding parts on the side opposite the mating contact 4 side of the broadening 1 1 can be avoided.
- the functioning of the safety device 1 according to the invention will now be described with reference to FIG. 2.
- the tie rod 7 In normal operation of the water heater, the tie rod 7 is in a locked position so that it pushes the contact 6 against the spring forces of the separating springs 5 down and thus on the contact springs.
- the contact 3 is integrated directly into the printed circuit board 2, that is, in direct contact with the lines applied to the printed circuit board 2 for supplying the water heater, the resistance between contact and the printed conductors in the printed circuit board can be kept low and it comes to a reduced heat development, even at high currents, which are needed to operate a water heater.
- the holding device has a U-shaped contact bridge 10
- the holding device may also have a different shaped contact bridge, for example a V-shaped contact bridge, or the holding device could be designed such that the Contact bridge 10 is connected directly to the contact spring 8.
- the contact bridge has 10 spacers 1 1 for attaching the mating contact 4
- the attachment of the mating contacts 4 may be configured differently to the contact bridge 10 and in particular have no broadening.
- the contact 3 and the mating contact 4 are formed as a bimetal with a fine grain silver part and a copper part, in another embodiment, the contact 3 and the mating contact 4 also consist of a single conductive material or more than two parts of different Have metals. In addition, the first and second parts of the contact and / or mating contact could be made of metals other than those described above.
Landscapes
- 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)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Electromagnetism (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Control Of Resistance Heating (AREA)
- Cookers (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL18704402T PL3571446T3 (pl) | 2017-01-19 | 2018-01-10 | Urządzenie zabezpieczające do awaryjnego wyłączania elektrycznego podgrzewacza przepływowego |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017000438.2A DE102017000438A1 (de) | 2017-01-19 | 2017-01-19 | Sicherheitsvorrichtung zum Notabschalten eines elektrischen Durchlauferhitzers |
PCT/EP2018/050508 WO2018134092A1 (de) | 2017-01-19 | 2018-01-10 | Sicherheitsvorrichtung zum notabschalten eines elektrischen durchlauferhitzers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3571446A1 true EP3571446A1 (de) | 2019-11-27 |
EP3571446B1 EP3571446B1 (de) | 2021-05-12 |
Family
ID=61192842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18704402.9A Active EP3571446B1 (de) | 2017-01-19 | 2018-01-10 | Sicherheitsvorrichtung zum notabschalten eines elektrischen durchlauferhitzers |
Country Status (7)
Country | Link |
---|---|
US (1) | US11152177B2 (de) |
EP (1) | EP3571446B1 (de) |
CN (1) | CN110249188B (de) |
DE (1) | DE102017000438A1 (de) |
PL (1) | PL3571446T3 (de) |
PT (1) | PT3571446T (de) |
WO (1) | WO2018134092A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020111516A1 (de) | 2020-04-28 | 2021-10-28 | Stiebel Eltron Gmbh & Co. Kg | Sicherheitsvorrichtung für elektrische Geräte |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE898498C (de) * | 1943-03-04 | 1953-11-30 | Siemens Ag | Kontaktniet |
DE966816C (de) * | 1950-03-04 | 1957-09-12 | Siemens Ag | Verfahren zur Herstellung von Federkontakten mit plattiertem Kontaktniet fuer elektrische Apparate |
DE1060060B (de) * | 1955-02-10 | 1959-06-25 | Fr Kammerer Ag | Magnetische Kontakte mit Edelmetallbelag |
DE1161975B (de) * | 1962-08-01 | 1964-01-30 | Busch Jaeger Duerener Metall | Kontakt mit einseitiger Edelmetallauflage fuer elektrische Schalter mit Druckkontakten |
GB1048520A (en) * | 1964-12-23 | 1966-11-16 | Talon Inc | Manufacture of a composite electrical contact rivet assembly |
US3939456A (en) * | 1974-12-09 | 1976-02-17 | Curtis International, Inc. | Heating plant monitor system |
DE3739712C2 (de) * | 1987-11-24 | 1995-08-31 | Stiebel Eltron Gmbh & Co Kg | Temperaturschalter |
KR900007008B1 (ko) * | 1988-12-26 | 1990-09-27 | 삼성전자 주식회사 | 연소기기의 역풍방지장치 |
JP3263425B2 (ja) * | 1992-02-14 | 2002-03-04 | 内橋エステック株式会社 | 面状温度ヒュ−ズ |
DE4227358C2 (de) * | 1992-08-19 | 1995-06-22 | Kulmbacher Klimageraete | Vorrichtung zum Schalten der Heizenergiezufuhr eines elektrischen Durchlauferhitzers |
DE4233676A1 (de) * | 1992-10-07 | 1994-04-14 | Ego Elektro Blanc & Fischer | Elektrischer Heizkörper für Medien, insbesondere Durchflußerhitzer |
GB2322273B (en) * | 1997-02-17 | 2001-05-30 | Strix Ltd | Electric heaters |
CN1215811C (zh) * | 1999-10-04 | 2005-08-24 | 塞伯股份有限公司 | 装有电磁铁/开关部件的电烤箱 |
DE10104438B4 (de) * | 2001-02-01 | 2007-06-14 | Stiebel Eltron Gmbh & Co. Kg | Mehrpoliger Sicherheitsabschalter mit einem Drucksensor |
US7007316B2 (en) * | 2002-08-21 | 2006-03-07 | Keltech, Inc. | Emergency shower and eyewash station with temperature control |
US7970494B2 (en) * | 2002-09-23 | 2011-06-28 | Liquidbreaker, Llc | Systems and methods for monitoring relief valve drain in hot water Heater |
DE10346771A1 (de) * | 2003-10-06 | 2005-04-21 | Bsh Bosch Siemens Hausgeraete | Sicherheitsschaltvorrichtung |
CN201181780Y (zh) * | 2008-02-05 | 2009-01-14 | 黄华道 | 漏电保护插座 |
US20100206869A1 (en) * | 2009-02-13 | 2010-08-19 | General Electric Company | Heat pump water heater control |
CN102135322A (zh) * | 2010-01-26 | 2011-07-27 | 上海瑞波猫环保科技有限公司 | 电磁感应速热式热水器 |
DE102010011151A1 (de) * | 2010-03-11 | 2011-09-15 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Tank und Verfahren zur Bestimmung des Füllstands im Tank |
DE102010024988B4 (de) * | 2010-06-24 | 2020-02-13 | Stiebel Eltron Gmbh & Co. Kg | Sicherheitsabschalter für einen Wassererhitzer und Wassererhitzer mit einem Sicherheitsabschalter |
DE102011013810B4 (de) * | 2011-03-14 | 2022-03-03 | Stiebel Eltron Gmbh & Co. Kg | Elektronisch geregelter Durchlauferhitzer und Verfahren zum Betrieb eines elektronisch geregelten Durchlauferhitzers |
CN103075811B (zh) * | 2013-02-28 | 2016-01-06 | 厦门帅科卫浴电器有限公司 | 直热式电热水器 |
CN203671933U (zh) * | 2013-08-09 | 2014-06-25 | 威能(北京)供暖设备有限公司 | 燃气热水器排烟管安全保护装置 |
CN103983020A (zh) * | 2014-04-25 | 2014-08-13 | 肖飘逸 | 自动断电热水器 |
-
2017
- 2017-01-19 DE DE102017000438.2A patent/DE102017000438A1/de active Pending
-
2018
- 2018-01-10 US US16/479,322 patent/US11152177B2/en active Active
- 2018-01-10 PL PL18704402T patent/PL3571446T3/pl unknown
- 2018-01-10 CN CN201880007510.8A patent/CN110249188B/zh active Active
- 2018-01-10 EP EP18704402.9A patent/EP3571446B1/de active Active
- 2018-01-10 PT PT187044029T patent/PT3571446T/pt unknown
- 2018-01-10 WO PCT/EP2018/050508 patent/WO2018134092A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
US11152177B2 (en) | 2021-10-19 |
DE102017000438A1 (de) | 2018-07-19 |
US20190341212A1 (en) | 2019-11-07 |
PT3571446T (pt) | 2021-07-05 |
CN110249188B (zh) | 2021-06-01 |
EP3571446B1 (de) | 2021-05-12 |
PL3571446T3 (pl) | 2021-11-22 |
CN110249188A (zh) | 2019-09-17 |
WO2018134092A1 (de) | 2018-07-26 |
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