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1. 发明公开

US20240353148A1 Control Method of Gas Water Heating Device and Gas Water Heating Device 审中-公开
公开(公告)号：US20240353148A1
公开(公告)日：2024-10-24
申请号：US18628519
申请日：2024-04-05
申请人： A. O. Smith (China) Water Heater Co., Ltd.
发明人： Yilong WANG , Jiandong MA , Wei LI
IPC分类号： F24H15/365 , F24H15/248 , F24H15/281 , F24H15/429
CPC分类号： F24H15/365 , F24H15/248 , F24H15/281 , F24H15/429
摘要： The invention relates to the technical field of a water heating device, and particularly discloses a control method of a gas water heating device and a gas water heating device. The gas water heating device comprises a burning device which includes at least two groups of burners; the control method of the gas water heating device comprises: determining whether the currently required load is within a common load range obtained in advance or not in the case that a first preset condition is met; if it is so, controlling a burner or burner combination corresponding to a common segment to conduct burning; the power range corresponding to the common segment comprises the common load range. With the present scheme, the constant-temperature effect of the water heater can be improved, and user experience is improved.

2. 发明公开

US20240200831A1 METHOD AND APPARATUS FOR DETERMINING FAULT OF HEATING APPARATUS, AND ELECTRIC WATER HEATER 审中-公开
公开(公告)号：US20240200831A1
公开(公告)日：2024-06-20
申请号：US18576292
申请日：2022-03-15
申请人： A. O. Smith (China) Water Heater Co., Ltd.
发明人： Xing LIU , Ran TAO , Qiang HUANG
IPC分类号： F24H15/124
CPC分类号： F24H15/124
摘要： Embodiments of this disclosure provide a method and apparatus for determining a fault of a heating device and an electric water heater. When the heating device includes at least two heating units in an operating state parallelly arranged on branches of a same phase line and the heating unit include a heating element and a switch controlling the heating element, the method includes: acquiring a main circuit current value of the phase line when the operating state of the heating units is not changed, and determining that a fault occurs in a heating element in at least one heating unit when the main circuit current value is not greater than a first current value; and acquiring a variation value of the main circuit current value caused by turning on/off the switch, and determining that a fault occurs in a heating element controlled by the switch when the variation value of the main circuit current value is not greater than a preset variation value. With the embodiments of this disclosure, diagnosis of faults in a plurality of heating elements in the heating device may be achieved at a low cost and high reliability.

3. 发明申请

US20220252326A1 DEFROSTING CONTROL METHOD, CENTRAL CONTROLLER AND HEATING SYSTEM 有权
公开(公告)号：US20220252326A1
公开(公告)日：2022-08-11
申请号：US17589282
申请日：2022-01-31
申请人： A. O. SMITH (CHINA) WATER HEATER CO., LTD.
发明人： Yufeng JING , Fei LIU , Miao CHEN
IPC分类号： F25D21/00 , F25D21/08
摘要： The present disclosure discloses a defrosting control method, a central controller and a heating system. The defrosting control method comprises: heating fluid in a flow passage between an inlet and an outlet of a first heat source by a second heat source, at least in a part of process of defrosting by the first heat source; acquiring an operation parameter of the first heat source, wherein the operation parameter comprises a water outlet temperature and/or a water return temperature and/or an operation parameter of a compressor of the first heat source, comparing a current value of the acquired operation parameter with a preset range of the operation parameter, and adjusting a heat exchange amount between the second heat source and the fluid when the acquired current value is within the preset range. The defrosting control method, the central controller and the heating system provided by the present disclosure can improve the defrosting efficiency while considering the heating comfort, and ensure the stable operation of the defrosting process.

4. 发明申请

US20160334100A1 MULTI-CAVITY GAS AND AIR MIXING DEVICE 审中-公开
标题翻译：多气体和空气混合装置
公开(公告)号：US20160334100A1
公开(公告)日：2016-11-17
申请号：US15110377
申请日：2014-01-09
申请人： A. O. SMITH (CHINA) WATER HEATER CO., LTD.
发明人： Shiping ZHANG , Dayan BI , Ruihong WEI
IPC分类号： F23D14/04 , F23D14/62
摘要： The present invention provides a multi-cavity gas-air mixing device, comprising at least two mixing cavities each having an air inlet and a mixture outlet communicated with a combustor, wherein each of the mixing cavities has a built-in gas pipeline, each of the gas pipelines is provided with a gas jet, and the orientation of the gas jet is intersected with a flow direction of air entering into the mixing cavities. The present invention effectively segments the gas-air mixer and achieves a large load regulation ratio, without producing condensate water at any load segment, thereby improving the system reliability and service life. The built-in gas pipeline of the present invention not only actively controls the fuel in the open-close control pipeline, but also reduces the volume of the mixer and largely decreases the cost. In addition, the orientation of the gas jet of the present invention is intersected with a flow direction of air entering into the mixing cavities, such that gas and air are sufficiently mixed.
摘要翻译：本发明提供了一种多空腔气体 - 空气混合装置，其包括至少两个混合空腔，每个混合腔具有空气入口和与燃烧器连通的混合物出口，其中每个混合空腔具有内置气体管道，气体管道设置有气体射流，并且气体射流的取向与进入混合腔的空气的流动方向相交。本发明有效地分段了气 - 空混合器，实现了较大的负荷调节比，不会在任何负荷段产生冷凝水，从而提高了系统的可靠性和使用寿命。本发明的内置气体管道不仅主动地控制开闭控制管路中的燃料，而且还减少了混合器的体积，并大大降低了成本。此外，本发明的气体射流的取向与进入混合腔的空气的流动方向相交，使得气体和空气充分混合。

5. 发明授权

US11920923B2 Water heater, and scale detection system and method 有权
公开(公告)号：US11920923B2
公开(公告)日：2024-03-05
申请号：US17470474
申请日：2021-09-09
申请人： A. O. SMITH (CHINA) WATER HEATER CO., LTD.
发明人： Tao Chen , Hongfei Ma , Shufeng Liu
IPC分类号： G01B21/08 , F24H1/20 , F24H9/20 , G01K1/02 , G01K3/00 , G01K3/08 , G01K3/14 , G01K13/00 , G01K13/02
CPC分类号： G01B21/085 , F24H1/20 , F24H1/205 , F24H1/206 , F24H1/208 , F24H9/2007 , G01K1/026 , G01K3/005 , G01K3/08 , G01K3/14 , G01K13/00 , G01K13/02
摘要： The present disclosure discloses a water heater, and a scale detection system and method. The scale detection system comprises: a first temperature detector configured to acquire a first temperature of a heat exchange zone of a water heating device; a second temperature detector configured to acquire a second temperature indicating a water temperature in the water heating device; and a controller in communication with the first temperature detector and the second temperature detector, and configured to acquire a temperature difference between the first temperature and the second temperature based on the first temperature acquired by the first temperature detector and the second temperature acquired by the second temperature detector, and determine that a scale generation amount in the water heating device reaches a preset threshold when at least one of the following judgment conditions is met: the first temperature is not less than a preset temperature threshold; and the temperature difference is not less than a preset temperature difference threshold. The present disclosure can ensure that a user can be reliably and timely reminded to clean the scale under different working conditions.

6. 发明授权

US11892215B2 Heat pump unit and control method thereof, control device, heat pump system, and combined supply system 有权
公开(公告)号：US11892215B2
公开(公告)日：2024-02-06
申请号：US17681895
申请日：2022-02-28
申请人： A. O. Smith (China) Water Heater Co. Ltd.
发明人： Wenwei Gao , Yufeng Jing , Miao Chen
IPC分类号： F25B49/02 , F25B30/02
CPC分类号： F25B49/02 , F25B30/02
摘要： A control method for a heat pump unit includes acquiring a first output capability set when the heat pump unit reaches a first preset energy efficiency ratio set at a current ambient temperature; acquiring a total demand load demanded by an indoor area having a heating demand or a cooling demand; and causing the heat pump unit to operate in accordance with the first output capability set when the total demand load is smaller than the first output capability set.

7. 发明申请

US20220275987A1 Heat Pump Unit and Control Method thereof, Control Device, Heat Pump System, and Combined Supply System 有权
公开(公告)号：US20220275987A1
公开(公告)日：2022-09-01
申请号：US17681895
申请日：2022-02-28
申请人： A. O. Smith (China) Water Heater Co. Ltd.
发明人： Wenwei Gao , Yufeng Jing , Miao Chen
IPC分类号： F25B49/02 , F25B30/02
摘要： A control method for a heat pump unit includes acquiring a first output capability set when the heat pump unit reaches a first preset energy efficiency ratio set at a current ambient temperature; acquiring a total demand load demanded by an indoor area having a heating demand or a cooling demand; and causing the heat pump unit to operate in accordance with the first output capability set when the total demand load is smaller than the first output capability set.

8. 发明授权

US11982487B2 Defrosting control method, central controller and heating system 有权
公开(公告)号：US11982487B2
公开(公告)日：2024-05-14
申请号：US17589282
申请日：2022-01-31
申请人： A. O. SMITH (CHINA) WATER HEATER CO., LTD.
发明人： Yufeng Jing , Fei Liu , Miao Chen
IPC分类号： F25D21/00 , F24D3/18 , F24D19/10 , F24F11/41 , F24H15/136 , F24H15/176 , F24H15/215 , F24H15/219 , F24H15/34 , F24H15/355 , F24H15/36 , F24H15/37 , F24H15/429 , F25B13/00 , F25B30/02 , F25B47/02 , F25D21/08 , F25D21/12
CPC分类号： F25D21/006 , F24D3/18 , F24D19/1039 , F24F11/41 , F24H15/136 , F24H15/176 , F24H15/215 , F24H15/219 , F24H15/34 , F24H15/355 , F24H15/36 , F24H15/37 , F24H15/429 , F25B47/025 , F25D21/08 , F25D21/12 , F24D2200/04 , F24D2200/123 , F25B13/00 , F25B30/02 , F25B2700/21161
摘要： The present disclosure discloses a defrosting control method, a central controller and a heating system. The defrosting control method comprises: heating fluid in a flow passage between an inlet and an outlet of a first heat source by a second heat source, at least in a part of process of defrosting by the first heat source; acquiring an operation parameter of the first heat source, wherein the operation parameter comprises a water outlet temperature and/or a water return temperature and/or an operation parameter of a compressor of the first heat source, comparing a current value of the acquired operation parameter with a preset range of the operation parameter, and adjusting a heat exchange amount between the second heat source and the fluid when the acquired current value is within the preset range. The defrosting control method, the central controller and the heating system provided by the present disclosure can improve the defrosting efficiency while considering the heating comfort, and ensure the stable operation of the defrosting process.

9. 发明申请

US20220187065A1 WATER HEATER, AND SCALE DETECTION SYSTEM AND METHOD 有权
公开(公告)号：US20220187065A1
公开(公告)日：2022-06-16
申请号：US17470474
申请日：2021-09-09
申请人： A. O. SMITH (CHINA) WATER HEATER CO., LTD.
发明人： Tao CHEN , Hongfei MA , Shufeng LIU
IPC分类号： G01B21/08 , F24H1/20 , G01K1/02 , G01K3/08 , G01K3/00
摘要： The present disclosure discloses a water heater, and a scale detection system and method. The scale detection system comprises: a first temperature detector configured to acquire a first temperature of a heat exchange zone of a water heating device; a second temperature detector configured to acquire a second temperature indicating a water temperature in the water heating device; and a controller in communication with the first temperature detector and the second temperature detector, and configured to acquire a temperature difference between the first temperature and the second temperature based on the first temperature acquired by the first temperature detector and the second temperature acquired by the second temperature detector, and determine that a scale generation amount in the water heating device reaches a preset threshold when at least one of the following judgment conditions is met: the first temperature is not less than a preset temperature threshold; and the temperature difference is not less than a preset temperature difference threshold. The present disclosure can ensure that a user can be reliably and timely reminded to clean the scale under different working conditions.

10. 发明公开

US20240240878A1 HEAT EXCHANGE FIN AND HEAT EXCHANGE DEVICE 审中-公开
公开(公告)号：US20240240878A1
公开(公告)日：2024-07-18
申请号：US18409256
申请日：2024-01-10
申请人： A. O. Smith (China) Water Heater Co., Ltd.
发明人： Tong LIU , Zhiping ZHANG , Chengjun ZHANG
IPC分类号： F28F1/30 , F24H1/14
CPC分类号： F28F1/30 , F24H1/14
摘要： The present application provides a heat exchange fin and a heat exchange device. The heat exchange fin comprises a plurality of water pipe through holes arranged side by side perpendicular to a flue gas flow direction, wherein a notch and a flanging hole are sequentially formed between the adjacent water pipe through holes along the flue gas flow direction, an edge of the notch is provided with a first flue gas baffle, and a first opening is formed at the center of the first flue gas baffle. In the present application, the temperature distribution of the heat exchange fin is more uniform, possibility of generation of the condensed water is reduced on the premise of ensuring heat exchange efficiency, thereby prolonging the service life of the heat exchange.

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