公开(公告)号：US20170328579A1

公开(公告)日：2017-11-16

申请号：US15532278

申请日：2015-03-10

Applicant: Grundfos Holding A/S

Inventor： Carsten Skovmose KALLESØE ,  René Stig BERGQVIST ,  Lars Sund MORTENSEN

IPC: F24D19/10 ,  F24D3/10 ,  F04D15/00

CPC classification number: F24D19/1012 ,  F04D13/0686 ,  F04D15/0066 ,  F04D15/0088 ,  F24D3/10 ,  F24D19/1015 ,  F24D19/1024 ,  F24D19/1048 ,  G08B5/228 ,  H04Q9/00 ,  H04Q2209/43 ,  Y02B30/745

Abstract: A method of balancing a heating system with a flow system, including a supply flow line (60) and a return flow line (70), a heat source (55) and a pump (10) hydraulic lines (L1-Ln), some having a heating element (H1-Hn) with a balancing valve (V1-Vn). The method includes: carrying out one or more measurements by opening one hydraulic line only and determining a flow rate through the pump and a pressure difference across the pump, establishing a hydraulic model based on the determined flow rate and pressure difference from at least two measurements from step, and at least one additional measurement for at least two hydraulic lines, specifying a desired flow rate for each of the hydraulic lines, and adjusting one or more of the dedicated balancing valves in order to meet the desired flow rate for each of the hydraulic lines by using the hydraulic model.

公开(公告)号：US20170179811A1

公开(公告)日：2017-06-22

申请号：US15382037

申请日：2016-12-16

Applicant: GRUNDFOS HOLDING A/S

Inventor： Jan KNUDSEN ,  Niels Høgholt PETERSEN

IPC: H02M1/32 ,  H02M7/04

Abstract: An electronic circuit (1), in particular DC-link circuit, has a high side DC voltage level, an input and an output, the electronic circuit comprising a DC-link capacitor (4), an inrush circuit (3), for limiting an input current to a predetermined level, connected between a supply line (6) of the DC-link capacitor and the input. The inrush circuit includes a charge resistor element (Rc), a switch element (9), connected in parallel with the charge resistor element, and a control (7, 8) controlling the switch element. The control is adapted to turn the switch element on when the input current falls below a predetermined current level. The control includes a trigger control element (8) adapted to detect a differential voltage across the switch element and to turn the switch element off when the detected differential voltage rises above a predetermined threshold voltage. A method is provided for operating the electronic circuit (1).

公开(公告)号：US09624931B2

公开(公告)日：2017-04-18

申请号：US14369034

申请日：2012-12-14

Applicant: GRUNDFOS HOLDING A/S

Inventor： Allan Moos

IPC: F04D13/06 ,  H02K11/33

CPC classification number: F04D13/064 ,  F04D13/06 ,  H02K11/33

Abstract: A pump assembly with an electric drive motor and with an electronics housing (10). The electronics housing in which at least one first electrical circuit board (14) is arranged. On the circuit board electrical contacts (18) are formed. Via the electrical contacts, at least one electronic component (16), in the inside of the electronics housing (10) may be programmed. At least one opening (22), through which the electrical contacts (18) on the circuit board (14) are contactable from the outside, is formed on a wall (20) of the electronics housing (10).

公开(公告)号：US20160352187A1

公开(公告)日：2016-12-01

申请号：US15116690

申请日：2015-01-23

Applicant: GRUNDFOS HOLDING A/S

Inventor： Christian WOLF

IPC: H02K11/01 ,  H02K11/33 ,  H05K9/00 ,  H02K5/24 ,  H02M5/297 ,  H02P27/06

CPC classification number: H02K11/01 ,  H02K5/24 ,  H02K11/33 ,  H02M5/297 ,  H02M7/003 ,  H02P27/06 ,  H05K9/0026 ,  H05K9/0037

Abstract: A frequency converter includes an enclosure, in which electrical and electronic components (5, 6, 7, 22) are arranged and which at least partly is designed as a Faraday cage. At least two Faraday cages (4, 9, 15, 29) are provided within the enclosure, in order to improve the electromagnetic compatibility (EMC).

Abstract translation: 变频器包括外壳，其中电气和电子部件（5,6,7,22）被布置并且至少部分地被设计为法拉第笼。 为了提高电磁兼容性（EMC），在机箱内至少提供两个法拉第笼（4,9,15,29）。

公开(公告)号：US09467025B2

公开(公告)日：2016-10-11

申请号：US14377254

申请日：2013-01-17

Applicant: GRUNDFOS HOLDING A/S

Inventor： Morten Sofussen ,  Inger-Lise Volsgaard Jakobsen

IPC: H02K11/00 ,  G07C3/00 ,  G01P13/04

CPC classification number: H02K11/20 ,  G01P13/045 ,  G07C3/00 ,  H02K11/0094 ,  H02K11/21

Abstract: An electric motor includes a signal device (5) for the display of at least two different operating conditions. For this, the signal device (5) includes six light diodes (A1-A6) which, with a running motor, are switched in a flashing manner synchronously to one another but shifted in time, so that they represent the rotational movement of the motor.

Abstract translation: 电动机包括用于显示至少两个不同操作条件的信号装置（5）。 为此，信号装置（5）包括六个发光二极管（A1-A6），其与运行电动机以闪烁的方式彼此同步地切换但是在时间上移动，使得它们表示电动机的旋转运动 。

公开(公告)号：US09467019B2

公开(公告)日：2016-10-11

申请号：US14367457

申请日：2012-12-20

Applicant: GRUNDFOS HOLDING A/S

Inventor： Lars Kannegaard Andersen ,  Jørgen Elkjær Jensen

IPC: H02K5/22 ,  H02K5/04 ,  F04D13/06 ,  H02K5/128 ,  H02K9/22 ,  H02K5/167 ,  F04D29/58 ,  F04D1/00 ,  F04D29/046 ,  F04D29/08 ,  H02K7/08

CPC classification number: H02K5/22 ,  F04D1/00 ,  F04D13/0606 ,  F04D13/0633 ,  F04D13/0686 ,  F04D13/0693 ,  F04D29/026 ,  F04D29/046 ,  F04D29/086 ,  F04D29/5813 ,  F05D2300/10 ,  F05D2300/43 ,  H02K5/04 ,  H02K5/128 ,  H02K5/1672 ,  H02K5/225 ,  H02K7/083 ,  H02K9/22 ,  H02K2205/09

Abstract: A connection housing (11) which arranged outside on the motor housing (9), receives electrical connections as well as electronic components and, with respect to the motor axis, extends peripherally and axially of the motor housing (9). The connection housing (11) has two individual housings (12, 13) which are connected to one another and whose interiors are connected.

Abstract translation: 布置在电动机壳体（9）外部的连接壳体（11）接收电连接以及电子部件，并且相对于电动机轴线在电动机壳体（9）的外周和轴向延伸。 连接壳体（11）具有彼此连接并且内部连接的两个单独的壳体（12,13）。

公开(公告)号：US20160273787A1

公开(公告)日：2016-09-22

申请号：US15034672

申请日：2014-10-13

Applicant: GRUNDFOS HOLDING A/S

Inventor： Erik BAASCH SØRENSEN ,  Martin CLAUSEN

IPC: F24D19/10 ,  F24D3/02 ,  G01F1/34

CPC classification number: F24D19/1015 ,  F24D3/02 ,  F24D19/1036 ,  G01F1/34 ,  G05B9/02

Abstract: A diagnosis method for the diagnosis of the correct function of a heating and/or cooling system with at least one load circuit (6), through which a fluid flows as a heat transfer medium. For the diagnosis an opening degree (Vpos,n) of the load circuit (6) is changed for changing the flow. Subsequently a differential pressure (Hpu) across the load circuit (6) and/or a volume flow of a fluid flowing through the load circuit (6) is detected and the detected values, or at least a value derived from the detected values, are/is compared to at least one predefined system limit value.

Abstract translation: 一种诊断方法，用于诊断具有至少一个负载电路（6）的加热和/或冷却系统的正确功能，流体作为传热介质流过该负载电路。 为了诊断，改变负载电路（6）的开度（Vpos，n）以改变流量。 随后检测跨越负载电路（6）的压差（Hpu）和/或流过负载电路（6）的流体的体积流量，并且检测值或至少从检测值得出的值为 与至少一个预定义的系统限制值进行比较。

公开(公告)号：US20160273543A1

公开(公告)日：2016-09-22

申请号：US14392325

申请日：2014-06-25

Applicant: GRUNDFOS HOLDING A/S

Inventor： Thomas BLAD

IPC: F04D29/042 ,  F04D15/00 ,  F04D29/42 ,  F04D13/06

Abstract: A pump assembly (2) includes an electric drive motor (14) and with at least one impeller (18) which is driven by the motor. The impeller is movable in an axial direction (X) between at least one first and one second position. The impeller in the first axial position is situated in a first flow path through the pump assembly and delivers a fluid through this first flow path. The impeller in the second position is situated in a second flow path through the pump assembly and delivers a fluid through this second flow path. The pump assembly (2) is configured such that a movement of the impeller (18), between the first and the second position at least in one direction, is effected by a hydraulic force which acts on the impeller (18) and is produced by the delivered fluid. A heating installation is provided with such a pump assembly.

Abstract translation: 泵组件（2）包括电驱动马达（14）和至少一个由马达驱动的叶轮（18）。 叶轮可以在至少一个第一和第二位置之间的轴向（X）上移动。 在第一轴向位置的叶轮位于通过泵组件的第一流动路径中，并且通过该第一流动路径输送流体。 位于第二位置的叶轮位于通过泵组件的第二流动路径中并且通过该第二流动路径输送流体。 泵组件（2）构造成使得叶轮（18）在第一和第二位置之间至少在一个方向上的运动通过作用在叶轮（18）上的液压力来实现，并且由叶轮 输送的液体。 一个加热装置设有这样一个泵组件。

公开(公告)号：US20160178073A1

公开(公告)日：2016-06-23

申请号：US14978084

申请日：2015-12-22

Applicant: GRUNDFOS HOLDING A/S

Inventor： Kåre IVERSEN ,  Torben Heilskov OVERGAARD

IPC: F16K11/056 ,  F16K27/02

CPC classification number: F16K11/0853 ,  F16K27/065 ,  F16K37/005 ,  F24D19/1024 ,  F24D2220/0242

Abstract: A heating or cooling installation control valve includes a movable valve element which is arranged in a valve space (8), as well as at least two connection channels (24, 26) which each have a first end in fluidic connection with the valve space (8) and have an opposite second end (A, B) for connection to a fluid-leading component. A sealing element (18) is arranged in at least one of the connection channels (24, 26) at a first end thereof. The sealing element is in contact with the valve element (6). The at least one connection channel (24, 26), in which the sealing element (18) is arranged, in addition to the second end (A, B), includes an assembly opening, through which the sealing element (18) can be inserted into the connection channel (24) and removed from of the connection channel (24).

Abstract translation: 加热或冷却安装控制阀包括设置在阀空间（8）中的可移动阀元件以及至少两个连接通道（24,26），每个连接通道具有与阀门空间流体连接的第一端（ 8）并且具有用于连接到流体引导部件的相对的第二端（A，B）。 密封元件（18）在其第一端处布置在至少一个连接通道（24,26）中。 密封元件与阀元件（6）接触。 除了第二端（A，B）之外，其中布置有密封元件（18）的至少一个连接通道（24,26）包括组装开口，密封元件（18）可以穿过该组件开口 插入到连接通道（24）中并从连接通道（24）移除。

公开(公告)号：US20160153469A1

公开(公告)日：2016-06-02

申请号：US14900766

申请日：2014-05-15

Applicant: GRUNDFOS HOLDING A/S

Inventor： Steen MIKKELSEN ,  Brian LUNDSTED POULSEN

IPC: F04D29/62 ,  F04D29/42 ,  F04D29/22 ,  F04D29/28 ,  F04D1/06 ,  F04D17/08

CPC classification number: F04D29/628 ,  F04D1/06 ,  F04D17/08 ,  F04D29/22 ,  F04D29/28 ,  F04D29/4206 ,  F04D29/426 ,  F04D29/4266 ,  F04D29/624

Abstract: The centrifugal pump (1) includes several pump stages which are arranged axially between a head part (4) and a foot part (2). An outer casing (3) peripherally surrounds the pump stages. An axial end of the outer casing (3) is fastened on the head part and the other axial end of the outer casing (3) is fastened on the foot part. A mechanical connection between the head part (4) and the foot part (2) is formed by the outer casing (3).

Abstract translation: 离心泵（1）包括多个泵级，其轴向布置在头部（4）和脚部（2）之间。 外壳（3）周边围绕泵级。 外壳（3）的轴向端紧固在头部上，外壳（3）的另一个轴向端紧固在脚部上。 头部（4）和脚部（2）之间的机械连接由外壳（3）形成。