公开(公告)号：USD1021796S1

公开(公告)日：2024-04-09

申请号：US29769104

申请日：2021-02-03

Applicant: Danfoss Power Electronics A/S

Designer： Michael Sørensen

Abstract: The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a front, right side and top perspective view of a frequency converter comprising a new, original and ornamental design having an element shown in color red;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is a left view thereof;
FIG. 7 is a right view thereof;
FIG. 8 is a front, right side and top perspective view of the frequency converter of FIG. 1 in accordance with an embodiment having an element shown in color red;
FIG. 9 is a front view thereof;
FIG. 10 is a back view thereof;
FIG. 11 is a top view thereof;
FIG. 12 is a bottom view thereof;
FIG. 13 is a left view thereof;
FIG. 14 is a right view thereof;
FIG. 15 is a front, right side and top perspective view of the frequency converter of FIG. 1 in accordance with an embodiment having an element shown in color red;
FIG. 16 is a front view thereof;
FIG. 17 is a back view thereof;
FIG. 18 is a top view thereof;
FIG. 19 is a bottom view thereof;
FIG. 20 is a left view thereof;
FIG. 21 is a right view thereof;
FIG. 22 is a front, right side and top perspective view of the frequency converter of FIG. 1 in accordance with an embodiment having an element shown in color red;
FIG. 23 is a front view thereof;
FIG. 24 is a back view thereof;
FIG. 25 is a top view thereof;
FIG. 26 is a bottom view thereof;
FIG. 27 is a left view thereof; and,
FIG. 28 is a right view thereof.

公开(公告)号：USD1021795S1

公开(公告)日：2024-04-09

申请号：US29738734

申请日：2020-06-19

Applicant: Danfoss Power Electronics A/S

Designer： Michael Sørensen

Abstract: The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a front, right side and top perspective view of a combined frequency converter and frequency converter panel in accordance with a first embodiment with no color claimed;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a left view thereof;
FIG. 7 is a right view thereof;
FIG. 8 is a front, right side and top perspective view of a combined frequency converter and frequency converter panel in accordance with a second embodiment having an element shown in color red;
FIG. 9 is a front view thereof;
FIG. 10 is a back view thereof;
FIG. 11 is a bottom view thereof;
FIG. 12 is a top view thereof;
FIG. 13 is a left view thereof;
FIG. 14 is a right view thereof;
FIG. 15 is a front, right side and top perspective view of a combined frequency converter and frequency converter panel in accordance with a third embodiment having an element shown in color red;
FIG. 16 is a front view thereof;
FIG. 17 is a back view thereof;
FIG. 18 is a bottom view thereof;
FIG. 19 is a top view thereof;
FIG. 20 is a left view thereof;
FIG. 21 is a right view thereof;
FIG. 22 is a front, right side and top perspective view of a combined frequency converter and frequency converter panel in accordance with a fourth embodiment having an element shown in color red;
FIG. 23 is a front view thereof;
FIG. 24 is a back view thereof;
FIG. 25 is a bottom view thereof;
FIG. 26 is a top view thereof;
FIG. 27 is a left view thereof; and,
FIG. 28 is a right view thereof.

公开(公告)号：USD1020641S1

公开(公告)日：2024-04-02

申请号：US29769102

申请日：2021-02-03

Applicant: Danfoss Power Electronics A/S

Designer： Michael Sørensen

Abstract: The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a front, right side and top perspective view of a frequency converter comprising a new, original and ornamental design having an element shown in color red;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is a left view thereof;
FIG. 7 is a right view thereof;
FIG. 8 is a front, right side and top perspective view of the frequency converter of FIG. 1 in accordance with an embodiment having an element shown in color red;
FIG. 9 is a front view thereof;
FIG. 10 is a back view thereof;
FIG. 11 is a top view thereof;
FIG. 12 is a bottom view thereof;
FIG. 13 is a left view thereof;
FIG. 14 is a right view thereof;
FIG. 15 is a front, right side and top perspective view of the frequency converter of FIG. 1 in accordance with an embodiment having an element shown in color red;
FIG. 16 is a front view thereof;
FIG. 17 is a back view thereof;
FIG. 18 is a top view thereof;
FIG. 19 is a bottom view thereof;
FIG. 20 is a left view thereof;
FIG. 21 is a right view thereof;
FIG. 22 is a front, right side and top perspective view of the frequency converter of FIG. 1 in accordance with an embodiment having an element shown in color red;
FIG. 23 is a front view thereof;
FIG. 24 is a back view thereof;
FIG. 25 is a top view thereof;
FIG. 26 is a bottom view thereof;
FIG. 27 is a left view thereof; and,
FIG. 28 is a right view thereof.

公开(公告)号：US20240088760A1

公开(公告)日：2024-03-14

申请号：US18461003

申请日：2023-09-05

Applicant: Danfoss Power Electronics A/S

Inventor： Stefan Zöschg ,  Patrice Rollin ,  Dario Nanni ,  Fabrizio Robol ,  Lorenz Vorhauser

IPC: H02K11/33 ,  H02K5/22

CPC classification number: H02K11/33 ,  H02K5/225 ,  H02K2211/03

Abstract: An electric motor arrangement including an electric motor, in particular a servo integrated motor, an encapsulation containing a motor drive, in particular a servo drive, for driving the motor with a low impedance electrical conducting path comprising a stacked power module, a power PCBA and a power connector. The electric motor arrangement further includes an electric motor and first and second encapsulation portions containing a motor drive for driving the motor, wherein the first encapsulation portion, the second encapsulation portion and/or the motor are thermally separated from each other by at least one thermal isolating layer.

公开(公告)号：US11863113B2

公开(公告)日：2024-01-02

申请号：US17861200

申请日：2022-07-09

Applicant: Danfoss Power Electronics A/S

Inventor： Steve Michael Meyer ,  Per Maersk Jørgensen

IPC: H02P9/04 ,  G05D19/02

CPC classification number: H02P9/04 ,  G05D19/02

Abstract: The present disclosure refers to a method for controlling the speed of a reciprocating load motor, wherein the motor speed is a function of two input variables, namely a user defined speed set-point and a load dependent input variable. According to the disclosure, the load dependent input variable is a function of the motor current. The disclosure also refers to a variable frequency drive for controlling the speed of a reciprocating load motor, wherein the drive is programmed to perform the presently described method.

公开(公告)号：US20230318499A1

公开(公告)日：2023-10-05

申请号：US18192366

申请日：2023-03-29

Applicant: Danfoss Power Electronics A/S

Inventor： Ana-Mari Tataru Kjær ,  Sanjeet Kumar Dwivedi ,  Thiruvenkadam Madhulingam ,  Katuri Gudaru Venkaiah

IPC: H02P21/14 ,  G01R19/04

CPC classification number: H02P21/14 ,  G01R19/04

Abstract: A method for determining a motor type of an electric motor includes several phases, wherein two or more pulses are applied to the motor, respective currents are measured and the motor type is determined based on the pulses. Further, a motor control apparatus is configured to perform such a method.

公开(公告)号：US11558001B2

公开(公告)日：2023-01-17

申请号：US17541512

申请日：2021-12-03

Applicant: Danfoss Power Electronics A/S

Inventor： Henrik Rosendal Andersen ,  Hernan Andres Miranda Delpino ,  Per Mærsk Jørgensen

IPC: H02P29/024

Abstract: The present invention is directed at a pulse shift protection method for detecting a phase-to-phase short circuit in a drive for controlling electric motors, wherein the drive provides an output voltage to the electric motor, and wherein the instant, at which a short circuit detection function is executed, is chosen to minimize disturbance in the output voltage of the drive. The invention is also directed at a drive for controlling electric motors, said drive including a controlling portion for generating an output signal and an output portion connectable to an electric motor. The drive is provided for executing the above-mentioned pulse shift protection method.

公开(公告)号：US20210296882A1

公开(公告)日：2021-09-23

申请号：US17206366

申请日：2021-03-19

Applicant: Danfoss Power Electronics A/S

Inventor： Per Knudsen ,  Ansgar Nielsen ,  Henrik Rosendal Andersen

IPC: H02H7/08 ,  H02P27/08 ,  H02P23/14

Abstract: The present invention relates to a motor controller providing a dual-channel functional-safety (FS) safe-torque-off (STO) function when controlling a motor. The motor controller includes an inverter with low-side switches and high-side switches, a low-side gate drive connected to the low-side switches, a high-side gate drive connected to the high-side switches, a first functional-safety safe-torque-off circuit connected to the high-side gate drive and a second functional-safety safe-torque-off circuit connected to the low-side gate drive, and a non-rein-forced high-voltage isolation barrier.

公开(公告)号：US20210028715A1

公开(公告)日：2021-01-28

申请号：US16935474

申请日：2020-07-22

Applicant: Danfoss Power Electronics A/S

Inventor： Henrik Rosendal Andersen

IPC: H02M5/458 ,  H02M1/08

Abstract: A method for determining rectifier-stage output current and/or grid-side currents (iu, iv, iw) of a frequency converter (1) having a passive rectifier (3), an inverter (4), a DC-link with a DC-link inductor (Ldc) and a DC-link capacitor (Cdc) between the rectification stage (3) and the inverter stage (4) is described. In a frequency converter the current information for the grid-side currents (iu, iv, iw) should be obtained without a current sensor at the grid-side (2). To this end the method comprises the step of calculating a current in the DC-link (5) by using at least a voltage value (Urec) and characteristics of the rectifier (3) in the DC-link (5) and/or grid side currents to form a corrected current using the calculated current and a measured current or currents or a fraction of a measured current or currents, or a fraction of a measured current or currents.

公开(公告)号：US10812003B2

公开(公告)日：2020-10-20

申请号：US16312383

申请日：2017-07-05

Applicant: Danfoss Power Electronics A/S

Inventor： Leandro Della Flora ,  Anton Smith

IPC: H02P23/14 ,  H02P6/182 ,  H02P1/02 ,  H02P27/06

Abstract: A method and apparatus is described in which a series of short-circuiting pulses is applied to a motor. A current in the motor is determined after one or more of the series of short circuit pulses has completed. The duration of the short-circuit pulses is adjusted depending on the determined current. The method and apparatus may be used within an arrangement for catching a spinning motor.