-
公开(公告)号：US20250007359A1
公开(公告)日：2025-01-02
申请号：US18759714
申请日：2024-06-28
Inventor： Yan HUANG , Weifeng MA
Abstract: The present invention involves in the technical field of resolver transformers, specifically in a motor-integrated resolver transformer simulation device and the simulation method thereof. The present invention obtains the current sinusoidal and cosinusoidal signals of a motor module through a resolver transformer module provided therein, and compare them with the excitation signals inputted by a motor controller, so as to determine whether the resolving circuit of the motor controller is faulty, and, by improving the brush device of the motor module, the service life of the motor module is increased and the testing cost is reduced.
-
公开(公告)号：US12027930B2
公开(公告)日：2024-07-02
申请号：US17299161
申请日：2019-12-17
Applicant: DENSO CORPORATION
Inventor： Shota Fujii , Tomoki Yamashita , Naoki Matsumoto , Ryosuke Oguri
CPC classification number: H02K23/66 , H02K1/10 , H02K1/2791 , H02K13/10 , H02P7/0094 , H02P7/06 , H02K2213/03
Abstract: A DC motor is configured so that, while either one of a pair of power feeding brushes makes contact with two commutator segments, the other makes contact with only one of two commutator segments. The DC motor is further provided with: a plurality of coils; a filter unit; and a calculation unit. The number of turns of a predetermined coil among the plurality of coils is different from the numbers of turns of the other coils. The filter unit allows the passing of the waveform of current generated on the basis of the fact that the numbers of turns are different from each other, and interrupts the waveform of current generated at the switching of the states of the contacts of the power feeding brushes to the commutator segments. The calculation unit calculates a rotational speed from the waveform passed through the filter unit.
-
3.发明公开公开(公告)号：US20240204631A1
公开(公告)日：2024-06-20
申请号：US18288204
申请日：2022-05-12
Applicant: Bayerische Motoren Werke Aktiengesellschaft
Inventor： Philip MOERTH
IPC: H02K13/10 , H01R39/38 , H01R39/415 , H02K13/00
CPC classification number: H02K13/10 , H01R39/383 , H01R39/385 , H01R39/415 , H02K13/003
Abstract: A high-voltage accumulator module having a multiplicity of battery cells arranged in a honeycombed parallel- and series connection assembly (for example, “honeycomb”). The gaps between the battery cells are filled with a thermally and electrically conductive potting compound. The battery cells are electrically insulated with respect to the potting compound. The potting compound is connected to an energy source via electrically conductive fixing elements that protrude into the potting compound and via two pole connections in such a way that a current flow through the potting compound which is as homogenous as possible is achieved. The two pole connections, for example, in the form of metal plates, may be fastened to the potting compound over a large surface area and in close electrical contact therewith by the fixing elements. The fixing elements may protrude as deep as possible into the potting compound in the form of strips or pins and may contain barbs.
-
4.发明授权公开(公告)号：US11670901B2
公开(公告)日：2023-06-06
申请号：US16657097
申请日：2019-10-18
Applicant: DENSO CORPORATION
Inventor： Shingo Shimizu , Takahiro Nozu , Yoshihiro Adachi , Tetsuya Honda
CPC classification number: H01R39/025 , H01H50/54 , H01R39/04 , H01R39/20 , H01R39/26 , H01R39/46 , H02K13/06 , H02K13/105 , H01H2201/026 , H01H2201/038
Abstract: An electrical contact device includes a high electric potential-side contact and a low electric potential-side contact having a lower electric potential than the high electric potential-side contact. The high electric potential-side contact and the low electric potential-side contact are configured to be brought into and out of contact with each other. At least one of the high electric potential-side contact and the low electric potential-side contact is formed of a low-boiling point material whose boiling point is lower than 2562° C. or a mixed material that contains the low-boiling point material.
-
公开(公告)号：US20230021176A1
公开(公告)日：2023-01-19
申请号：US17952819
申请日：2022-09-26
Applicant: DENSO CORPORATION
Inventor： Ryosuke OGURI
IPC: H02K13/10
Abstract: A motor includes a rotating shaft, an armature core, a plurality of coils, a commutator and a pair of brushes. The plurality of coils include three or more coil pairs each of which consists of a pair of coils configured to be point-symmetrical with respect to a rotation center axis. One of the three or more coil pairs constitutes a pair of number-of-turns adjustment coils which would have a lowest inductance in the plurality of coils if all the plurality of coils had the same number of turns. The number of turns of the pair of number-of-turns adjustment coils is set to be larger than the number of turns of any of the remainder of the three or more coil pairs. The inductance of the pair of number-of-turns adjustment coils is set to be higher than the inductance of any of the remainder of the three or more coil pairs.
-
Patent Agency Ranking
公开(公告)号：US20220360149A1
公开(公告)日：2022-11-10
申请号：US17813064
申请日：2022-07-18
Applicant: MINEBEA MITSUMI Inc.
Inventor： Koichiro HIRABAYASHI , Akiko IKUTA , Yukimasa MATSUMURA , Kazuaki SATO , Minoru KURODA , Bora IN
Abstract: A motor includes a commutator, a bracket including a conductive brush, first and second wall parts, and first and second deformable parts. The conductive brush is in contact with the commutator. The first wall part includes a first surface extending along a first surface of the conductive brush. The second wall part includes a second surface extending along a second surface of the conductive brush located on a side opposite the first surface of the conductive brush. The first deformable part is in contact with both the first surface of the conductive brush and the first surface of the first wall part, and is deformable in response to movement of the conductive brush. The second deformable part is in contact with both the second surface of the conductive brush and the second surface of the second wall part, and is deformable in response to movement of the conductive brush.
-
公开(公告)号：US11329523B2
公开(公告)日：2022-05-10
申请号：US17052525
申请日：2019-05-06
Applicant: Jiankun Hu
Inventor： Jiankun Hu , Yongkui Huang
IPC: H02K1/17 , H02K5/14 , H02K15/03 , H02K1/18 , H02K5/173 , H02K13/00 , H02K13/10 , H02K15/12 , H02K23/04
Abstract: Provided is a permanent magnet brush micromotor and an assembly method thereof. Its upper stator bracket and lower stator bracket are designed to fit together, and the concave parts of the upper stator bracket and lower stator bracket are matched to form a complete mounting cavity for mounting a motor shaft, core winding, bearings and commutator. The core winding, bearings and commutator are installed on the motor shaft to form a mover assembly, and then the mover assembly is installed in the concave part of the lower stator bracket. Finally, combining and fixing the upper stator bracket and lower stator bracket with electric brushes which are respectively placed in brush mounting positions. And, two bearings are fixed or pressed on the same component, so that the concentricity and coaxiality of the bearings can be ensured, the compression of the central biasing force is avoided during assembly.
-
公开(公告)号：US11146152B2
公开(公告)日：2021-10-12
申请号：US16765887
申请日：2018-11-20
Applicant: TRIS INC.
Inventor： Kenji Kawamata
Abstract: A brush for a motor for electrical equipment in an automobile includes a main brush portion containing carbon and an abrasive having a Vickers hardness higher than or equal to 10 GPa and lower than or equal to 14 GPa. The sliding noise of the brush is reduced in the brush for a motor for electrical equipment in an automobile.
-
公开(公告)号：US20210242762A1
公开(公告)日：2021-08-05
申请号：US17052534
申请日：2018-11-08
Inventor： Aijuan JIN , Shaolong LI
IPC: H02K23/06 , H02K23/08 , H02K23/30 , H02K13/10 , H02K3/28 , H02K3/18 , H02K3/32 , H02K3/30 , H02K1/14 , H02K5/14
Abstract: The present invention provides a direct current motor, comprising: a casing; m pairs of brushes fixed within the casing; a stator provided within the casing, including m main poles corresponding to the m pairs of brushes, and n field winding parts; and a rotor provided within the stator, including a plurality of armature windings in a predetermined connection, wherein each pair of main poles includes an S-polarity main pole and an N-polarity main pole; each pair of brushes includes an S-pole corresponding brush corresponding to the S-polarity main pole, and an N-pole corresponding brush corresponding to the N-polarity main pole, the field winding part includes k field winding units, each field winding unit is made up of field coils formed by winding an insulated conductor strip, which is made of a metal wire coated with an insulating layer, around the m pairs of main poles, and m is a positive integer not less than 2, n is 1 or 2, and k is a positive integer not less than 2.
-
公开(公告)号：US20210218320A1
公开(公告)日：2021-07-15
申请号：US16743438
申请日：2020-01-15
Applicant: MABUCHI MOTOR CO., LTD.
Inventor： Yasuhiro HASHIMOTO , Hideyuki UZAWA , Keiji NAKAMURA
Abstract: A rotor is provided with: a rotor core which rotates integrally with a shaft and has a plurality of radially extending teeth; windings including coil portions wound around the teeth; a commutator that is attached to the rotor core and integrally rotates with the shaft, the commutator including metal commutator segments having contact portions with which precious metal brushes make sliding contact, and a plurality of terminals to which the windings are bonded; elements which include capacitors and respectively electrically connecting terminals to which both ends of the coil portions of the same phase are connected; and a coating layer formed of an oil applied to the contact portions. A motor includes this rotor.
-
-
-
-
-
-
-
-
-
Search Results
362
records
(took 0.029 seconds)
