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公开(公告)号：US12044439B2
公开(公告)日：2024-07-23
申请号：US17703124
申请日：2022-03-24
发明人： Martin Herrs , Hubert Nolte
IPC分类号： F24H9/20 , F24H15/174 , F24H15/215 , F24H15/219 , F24H15/37 , F24H15/414
CPC分类号： F24H15/174 , F24H9/2014 , F24H15/215 , F24H15/219 , F24H15/37 , F24H15/414
摘要： A water heater including a cold water intake, a hot water output, a fluid pathway arranged between the cold water intake and the hot water output and adapted to convey water flowing from the cold water intake to the hot water output. A heating element is adapted to heat water that is in the fluid pathway. A power electronics unit is coupled to the heating element. A controller is configured to regulate a temperature of the water in the fluid pathway to an adjustable hot water temperature by controlling the power electronics unit. A water draw-off detector is adapted to detect a water draw-off event and a water sensor is adapted to determine a reference parameter corresponding to a temperature of the water.
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公开(公告)号：US11808485B2
公开(公告)日：2023-11-07
申请号：US16893825
申请日：2020-06-05
发明人： Hubert Nolte
CPC分类号： F24H1/101 , F24H9/2028 , G01F1/05 , G01K13/02 , H05B3/82 , F24D2200/08 , F24D2220/0271 , F24D2220/042 , F24D2220/044 , G01K13/026
摘要： A water heater including an inflow terminal for connecting a tankless water heater to a cold water supply and an outflow terminal for connecting the tankless water heater to a tap. A fluid channel proves a fluid connection from the inflow terminal to the outflow terminal. A heat element arrangement is arranged at or within at least a section of the fluid channel for transferring heat to fluid present within the fluid channel. An electronic controller is configured to control a heating power provided to the heat element arrangement. A flow sensor is arranged at or within the fluid channel downstream the heat element arrangement. The electronic controller is further configured to detect the presence of air bubbles within the fluid channel based on a change of a flow signal provided by the flow sensor and to adapt the heating power provided to the heat element arrangement in reaction to the determination of air bubbles.
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3.发明申请公开(公告)号：US20200025418A1
公开(公告)日：2020-01-23
申请号：US16040782
申请日：2018-07-20
发明人： Hubert Nolte
摘要： The invention describes the procedure for displaying performance data on the front of a tankless electric water heater. At least one of the performance conditions is stored in the electronic control unit and is available to the display. A savings E is determined from a reference value R and a time value Z and is made available to be shown on the display. The reference value R contains at least one loss value V of another water heater and the time value Z is an input from the tankless electric water heater. The savings E represents a measure of the energy savings of the tankless water heater as contrasted with the other water heater.
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公开(公告)号：US20190338963A1
公开(公告)日：2019-11-07
申请号：US15968849
申请日：2018-05-02
发明人： Hubert Nolte
摘要： A water heater comprising a heat pump device and a water tank is provided. A temperature controller operates the heat pump device based on a comparison of a measured water temperature and the set temperature. The water heater further comprises a source temperature sensor measuring the temperature of a heat source serving to provide heat energy to the heat pump device process. The source temperature sensor measures a source temperature and provides a source temperature value to the temperature controller. The temperature controller adapts a activation temperature in response to the measured source temperature. The water heater provides an improved accuracy of the temperature controller without unnecessarily reducing the life expectancy of the heat pump device. Furthermore, a corresponding method for controlling a heat pump device in a water heater is suggested.
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公开(公告)号：US11573031B2
公开(公告)日：2023-02-07
申请号：US15378720
申请日：2016-12-14
发明人： Hubert Nolte , Martin Herrs
摘要： A tankless water heater comprising a bare wire heating element is disclosed which is connected to an electronic temperature control system. At least one sensor is furthermore connected to the electronic temperature control system. A fluid heating chamber is made of insulating non conductive material wherein the heating element is located. At least one switch is connected to at least one bare wire heating element and to a phase of an AC line. An electrode system and an electronic detecting circuit are interconnected. The electrode system is arranged in a fluid channel, in a short distance from the bare wire heating element which acts like electrode 1. The electrode 2 of the electrode system is made from a conductive tube material hydraulically connected to a throttle valve made from non conductive material to insulate the electrode 2 from the grounded collector. The electrode 2 is electrically connected to a electronic control system via a conductive material.
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公开(公告)号：US20210018221A1
公开(公告)日：2021-01-21
申请号：US16515250
申请日：2019-07-18
发明人： Hubert Nolte , Michael Dion , Frank Stiebel
摘要： A tankless water heater system (100), with a heat exchanger device (20) comprising at least one hollow chamber (21, 22, 23, 24 ) and at least one electrical heating element (52, 53, 54), and: a controller device (30) with a temperature control unit (35), a tap event counter unit (32), a down-time counter unit (33) and a time delay unit (34); an electrical switching element (41, 42, 43) for connecting or disconnecting one or several heating elements (52, 53, 54) to/from a power supply; an outlet temperature sensor (27) linked with the temperature control unit (35); a flow rate sensor (29); wherein: the tap counter unit (32) is connected to the flow rate sensor (29) and is triggered when water flow rate exceeds a tap indication threshold {dot over (V)}0 the down-time counter unit (33) is triggered and retriggered by the tap counter unit (32) and both provide a down-time event signal after any inactivity period with no water flow and records the duration of inactivity; the time delay unit (34) is connected to and triggered by the tap counter unit (32) starting a delay period ΔtOFF which duration is switched from a short default delay period to a long delay period by the down-time signal provided by the down-time counter unit (33); and the switching elements (41, 42, 53) are triggered by the time delay unit (34) only after the delay period has elapsed.
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公开(公告)号：US20200025417A1
公开(公告)日：2020-01-23
申请号：US16040665
申请日：2018-07-20
发明人： Hubert Nolte , Frank Stiebel
摘要： A method of controlling a heat up of a domestic hot water tank, whereby tank temperatures are measured. The tank temperatures are fed into a control unit and a heating device is activated to heat up water in the tank when the control unit calls for heat. The method comprises a step of feeding an incoming cold-water temperature value into the control unit and generating a parameter effected by this incoming cold-water temperature. The tank temperature is measured and is related to the thermal energy content of the tank, whereby the tank temperature is measured with an integral water temperature sensor mounted to the tank, further effecting the parameter. It processes then a call for heat depending on a comparison of a set point value with the parameter generated from the tank temperature and the measured cold-water temperature.
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公开(公告)号：US11662122B2
公开(公告)日：2023-05-30
申请号：US16515250
申请日：2019-07-18
发明人： Hubert Nolte , Michael Dion , Frank Stiebel
CPC分类号： F24H9/2028 , F24H1/102 , H05B3/0019 , F24H2250/02 , H05B2203/021 , H05B2203/035
摘要： A tankless water heater system (100), with a heat exchanger device (20) comprising at least one hollow chamber (21, 22, 23, 24) and at least one electrical heating element (52, 53, 54), and a controller device (30) with a temperature control unit (35), a tap event counter unit (32), a down-time counter unit (33) and a time delay unit (34); an electrical switching element (41, 42, 43) for connecting or is connecting one or several heating elements (52, 53, 54) to/from a power supply; an outlet temperature sensor (27) linked with the temperature control unit (35); a flow rate sensor (29); wherein: the tap counter unit (32) is connected to the flow rate sensor (29) and is triggered when water flow rate exceeds a tap indication threshold the down-time counter unit (33) is triggered and retriggered by the tap counter unit (32) and both provide a down-time event signal after any inactivity period with no water flow and records the duration of inactivity; the time delay unit (34) is connected to and triggered by the tap counter unit (32) starting a delay period which duration is switched from a short default delay period to a long delay period by the down-time signal provided by the down-time counter unit (33); and the switching elements (41, 42, 53) are triggered by the time delay unit (34) only after the delay period has elapsed.
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9.发明授权公开(公告)号：US11350783B2
公开(公告)日：2022-06-07
申请号：US16221748
申请日：2018-12-17
发明人： Hubert Nolte
摘要： A hot water dispenser and a method for determining a boiling point of water in the same. The hot water dispenser contains a reservoir, a heating element, and a sensor. The method includes heating water in the reservoir with a first power value of the heating element during a first period of time until a value indicative of a threshold temperature of water is determined; upon reaching the threshold temperature, heating the reservoir water with a second power value of the heating element, which is lower than the first power value, during a second period of time until a water-temperature-rise-per-time value is lower than a first predetermined value; subsequently, increasing the power value of the heating element to a third power value during a third period of time; determining the boiling-point temperature of water by determining the highest temperature of water between the first and third periods of time.
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公开(公告)号：US20200003432A1
公开(公告)日：2020-01-02
申请号：US16023180
申请日：2018-06-29
发明人： Hubert Nolte , Frank Stiebel , Michael Dion
摘要： A tank water heater assembly is provided including a tank water heater and a drain pan provided with a sensor holder for mounting a sensor. The sensor holder accommodates a leak detection sensor at predefined distance above an inner surface of a bottom wall of the drain pan. In this way the presence of harmless small amounts of water in the drain pan do not trigger an alarm. A transport assembly is presented for facilitating transportation of the tank water heater assembly to an installation site and subsequent installation. Finally, a method for installation of a tank water heater assembly is provided.
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