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1. 发明授权

EP3101369B1 HEAT RECOVERY VARIABLE-FREQUENCY MULTI-SPLIT HEAT PUMP SYSTEM AND CONTROL METHOD THEREOF 有权
公开(公告)号：EP3101369B1
公开(公告)日：2018-10-24
申请号：EP14879349.0
申请日：2014-03-25
申请人： Qingdao Hisense Hitachi Air-Conditioning Systems Co. Ltd.
发明人： LIU, Min , WANG, Yuanpeng , ZHANG, Wenqiang , CAO, Rui , LI, Yajun , LI, Yongmei
IPC分类号： F25B13/00 , F25B41/04 , F25B41/06 , F25B43/02
CPC分类号： F25B13/00 , F25B41/04 , F25B41/046 , F25B41/062 , F25B41/067 , F25B43/02 , F25B2313/007 , F25B2313/0231 , F25B2313/0232 , F25B2313/0233 , F25B2341/065 , F25B2341/0661 , F25B2600/2501 , F25B2600/2513 , F25B2600/2515 , Y02B30/72
摘要： A heat recovery variable-frequency multi-split heat pump system and a control method thereof. The system comprises an outdoor unit and at least two indoor units. The system is a three-pipe heating recovery multi-split heat pump system designed on the basis of a four-way reversing valve, and one indoor unit thereof is provided with two electronic expansion valves and two heat exchangers so that any indoor unit in the system can operate independently under three working conditions of refrigeration, heating or heat recovery dehumidification. Under multi-split condition, the system can operate under six working conditions, namely, the full-refrigeration working condition, the full-heating working condition, the common-heat-recovery working condition, the common-heat-recovery-dehumidification working condition, the heat recovery dehumidification-refrigeration-combination working condition and the heat recovery dehumidification-heating-combination working condition. Under the heat recovery dehumidification condition, a lower outlet air temperature, during low-temperature dehumidification, is raised by means of heat removal of a condenser so as to achieve the purpose of dehumidification without temperature fall or temperature rise, so that the thermal comfort and efficiency of the system are improved, and the refrigerating capacity and heating capacity of the system are effectively improved.

2. 发明公开

EP4354048A1 HEAT PUMP SYSTEM AND CONTROL METHOD THEREFOR 审中-实审
公开(公告)号：EP4354048A1
公开(公告)日：2024-04-17
申请号：EP22819590.5
申请日：2022-06-08
申请人： QINGDAO HISENSE HITACHI AIR-CONDITIONING SYSTEMS CO., LTD.
发明人： LI, Dongzhe , WANG, Yuanpeng , ZUO, Jixue , XIA, Xingxiang , CHEN, Weixing , PAN, Cuilian , GUAN, Qinghang , LI, Shoushan , WANG, Qingbo , FU, Hua
IPC分类号： F25B30/02 , F24D3/18 , F25B30/06 , F25B49/02
CPC分类号： F25B49/02 , F24D3/18 , F25B30/02 , F25B30/06
摘要： A heat pump system, which comprises at least one heat pump indoor unit. The heat pump indoor unit comprises a cascade heat exchanger (11) and a terminal heat exchanger assembly (16). The cascade heat exchanger (11) comprises a first heat exchange portion (12) and a second heat exchange portion (14), wherein the first heat exchange portion (12) is connected to a low-temperature-stage circulation pipeline (13), and there is a first refrigerant in the low-temperature-stage circulation pipeline (13); and the second heat exchange portion (14) is connected to a high-temperature-stage circulation pipeline (15), there is a second refrigerant in the high-temperature-stage circulation pipeline (15), and the second heat exchange portion (14) is configured to exchange heat with the first heat exchange portion (12). The terminal heat exchanger assembly (16) comprises a third heat exchange portion (18), a fourth heat exchange portion (19) and a terminal heat exchange portion (17), wherein the third heat exchange portion (18) is connected to the low-temperature-stage circulation pipeline (13); the fourth heat exchange portion (19) is connected to the high-temperature-stage circulation pipeline (15); and the terminal heat exchange portion (17) is connected to an indoor end apparatus, and is configured to exchange heat with the third heat exchange portion (18), or exchange heat with the fourth heat exchange portion (19), or exchange heat with the third heat exchange portion (18) and the fourth heat exchange portion (19).

3. 发明公开

EP3101369A1 HEAT RECOVERY VARIABLE-FREQUENCY MULTI-SPLIT HEAT PUMP SYSTEM AND CONTROL METHOD THEREOF 有权
标题翻译： WÄRMERÜCKGEWINNUNGS-MULTISPLIT-WÄRMEPUMPENSYSTEMMIT VARIABLER FREQUENZ UND STEUERUNGSVERFAHRENDAFÜR
公开(公告)号：EP3101369A1
公开(公告)日：2016-12-07
申请号：EP14879349.0
申请日：2014-03-25
申请人： Qingdao Hisense Hitachi Air-Conditioning Systems Co. Ltd.
发明人： LIU, Min , WANG, Yuanpeng , ZHANG, Wenqiang , CAO, Rui , LI, Yajun , LI, Yongmei
IPC分类号： F25B13/00
CPC分类号： F25B13/00 , F25B41/04 , F25B41/046 , F25B41/062 , F25B41/067 , F25B43/02 , F25B2313/007 , F25B2313/0231 , F25B2313/0232 , F25B2313/0233 , F25B2341/065 , F25B2341/0661 , F25B2600/2501 , F25B2600/2513 , F25B2600/2515 , Y02B30/72
摘要： A heat recovery variable-frequency multi-split heat pump system and a control method thereof. The system comprises an outdoor unit and at least two indoor units. The system is a three-pipe heating recovery multi-split heat pump system designed on the basis of a four-way reversing valve, and one indoor unit thereof is provided with two electronic expansion valves and two heat exchangers so that any indoor unit in the system can operate independently under three working conditions of refrigeration, heating or heat recovery dehumidification. Under multi-split condition, the system can operate under six working conditions, namely, the full-refrigeration working condition, the full-heating working condition, the common-heat-recovery working condition, the common-heat-recovery-dehumidification working condition, the heat recovery dehumidification-refrigeration-combination working condition and the heat recovery dehumidification-heating-combination working condition. Under the heat recovery dehumidification condition, a lower outlet air temperature, during low-temperature dehumidification, is raised by means of heat removal of a condenser so as to achieve the purpose of dehumidification without temperature fall or temperature rise, so that the thermal comfort and efficiency of the system are improved, and the refrigerating capacity and heating capacity of the system are effectively improved.
摘要翻译：一种热回收变频多分体热泵系统及其控制方法。该系统包括室外单元和至少两个室内单元。该系统是基于四通换向阀设计的三管加热回收多分割热泵系统，其一个室内机组设有两个电子膨胀阀和两个热交换器，使得任何室内机系统可以在制冷，加热或热回收除湿三个工作条件下独立运行。在多分段状态下，系统可以在全制冷工作状态，全热工作状态，共热恢复工作状态，共热回热除湿工作条件六种工作条件下工作热回收除湿 - 制冷组合工作条件和热回收除湿加热组合工作条件。在热回收除湿条件下，通过冷凝器的除热，在低温除湿过程中出口空气温度较低，达到除湿，无温度下降或升温的目的，从而使热舒适性和提高了系统的效率，有效提高了系统的制冷能力和制热能力。

4. 发明公开

EP3441697A1 HEAT RECOVERY VARIABLE-FREQUENCY MULTI-SPLIT HEAT PUMP SYSTEM AND CONTROL METHOD THEREOF 有权
公开(公告)号：EP3441697A1
公开(公告)日：2019-02-13
申请号：EP18198012.9
申请日：2014-03-25
申请人： Qingdao Hisense Hitachi Air-Conditioning Systems Co. Ltd.
发明人： LIU, Min , WANG, Yuanpeng , ZHANG, Wenqiang , CAO, Rui , LI, Yajun , LI, Yongmei
IPC分类号： F25B13/00 , F25B41/04 , F25B41/06 , F25B43/02
摘要： A heat recovery variable-frequency multi-split heat pump system and a control method thereof. The system comprises an outdoor unit and at least two indoor units. The system is a three-pipe heating recovery multi-split heat pump system designed on the basis of a four-way reversing valve, and one indoor unit thereof is provided with two electronic expansion valves and two heat exchangers so that any indoor unit in the system can operate independently under three working conditions of refrigeration, heating or heat recovery dehumidification. Under multi-split condition, the system can operate under six working conditions, namely, the full-refrigeration working condition, the full-heating working condition, the common-heat-recovery working condition, the common-heat-recovery-dehumidification working condition, the heat recovery dehumidification-refrigeration-combination working condition and the heat recovery dehumidification-heating-combination working condition. Under the heat recovery dehumidification condition, a lower outlet air temperature, during low-temperature dehumidification, is raised by means of heat removal of a condenser so as to achieve the purpose of dehumidification without temperature fall or temperature rise, so that the thermal comfort and efficiency of the system are improved, and the refrigerating capacity and heating capacity of the system are effectively improved.

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