Motor and stator thereof

Patent metadata

Field	Value
Publication number	US-10468940-B2
Application number	US-201715471461-A
Country	US
Kind code	B2
Filing date	Mar 28, 2017
Priority date	Mar 28, 2016
Publication date	Nov 5, 2019
Grant date	Nov 5, 2019

Abstract

A motor includes a stator core, a winding bracket mounted around the stator core, a winding wound around the winding bracket, and a rotor cooperating with stator core. The winding bracket comprises a first bracket and a second bracket arranged in parallel with each other. The motor further includes a first connecting terminal and a second connecting terminal for supplying power to the winding from an external power source, and the first connecting terminal and the second connecting terminal are both mounted on the second bracket.

First claim

The invention claimed is:

1. A stator comprising:
a stator core;
a winding wound around the stator core;
a winding bracket disposed between the stator core and the winding, the winding bracket comprising a first bracket and a second bracket arranged in parallel with each other;
an electronic circuit; and
a first connecting terminal and a second connecting terminal for supplying power to the winding and the electronic circuit from an external power source, the first and second connecting terminals both mounted on one of the first bracket and the second bracket; wherein the electronic circuit and the winding are connected in series between the first connecting terminal and the second connecting terminal, and wherein the stator further comprises a connecting member disposed on the winding bracket, the connecting member is separately formed and electrically connects the winding to the electronic circuit, the electronic circuit comprises a circuit board, and the circuit board is supported by the connecting member and the first connecting terminal.

2. The stator of claim 1 , wherein the first connecting terminal and the second connecting terminal are both mounted on one end of the first bracket or the second bracket.

3. The stator of claim 1 , wherein each of the first connecting terminal and the second connecting terminal is separately formed and fixed to the winding bracket.

4. The stator of claim 1 , wherein said one of the first bracket and the second bracket comprises a winding portion and an inserting portion disposed at one end of the winding portion, and the first connecting terminal and the second connecting terminal are disposed on the inserting portion.

5. The stator of claim 1 , wherein the first connecting terminal and the second connecting terminal are arranged in parallel with and offset from each other.

6. The stator of claim 1 , wherein the stator core comprises two opposed stator poles and a U-shaped yoke connecting the two stator poles.

7. A motor comprising:
a rotor; and
a stator, comprising:
a stator core;
a winding wound around the stator core;
a winding bracket disposed between the stator core and the winding, the winding bracket comprising a first bracket and a second bracket arranged in parallel with each other;
an electronic circuit; and
a first connecting terminal and a second connecting terminal for supplying power to the winding and the electronic circuit from an external power source, the first and second connecting terminals both mounted on one of the first bracket and the second bracket; wherein the electronic circuit and the winding are connected in series between the first connecting terminal and the second connecting terminal,

wherein the stator further comprises a connecting member disposed on the winding bracket, the connecting member is separately formed and electrically connects the winding to the electronic circuit, the electronic circuit comprises a circuit board, and the circuit board is supported by the connecting member.

8. The motor of claim 7 , wherein the motor further comprises a protective cover, and the protective cover, the first connecting terminal and the second connecting terminal cooperatively form a power socket.

9. The motor of claim 8 , wherein the protective cover defines two inserting slots, and a connecting end of the first connecting terminal and a connecting end of the second connecting terminal are received in the two inserting slots, respectively.

10. The motor of claim 9 , wherein the two inserting slots are arranged in parallel with and offset from each other.

11. The motor of claim 7 , wherein the circuit board is supported by the first connecting terminal.

12. The motor of claim 7 , wherein the electronic circuit comprises a circuit board, the circuit board comprises an edge adjacent to the rotor, the electronic circuit comprises a magnetic sensor perpendicularly disposed on the circuit board, and the magnetic sensor is disposed beside the edge of the circuit board adjacent to the rotor.

13. A single phase permanent magnet synchronous motor comprising:
a permanent magnet rotor; and
a stator comprising:
a stator core comprising two opposed stator poles and a U-shaped yoke connecting the two stator poles;
a single phase winding wound around the stator core, and
a winding bracket disposed between the stator core and the winding, the winding bracket comprising a first bracket and a second bracket attached around two branches of the U-shaped yoke;
an electronic circuit; and
a pair of power supply terminals for supplying power to the single phase winding and the electronic circuit from an external power source, the pair of power supply terminals both mounted on one of the first bracket and the second bracket; wherein the electronic circuit and the winding are connected in series between the pair of power supply terminals,

wherein the electronic circuit comprises a circuit board, the circuit board comprises an edge adjacent to the rotor, the electronic circuit comprises a magnetic sensor perpendicularly disposed on the circuit board, and the magnetic sensor is disposed beside the edge of the circuit board adjacent to the rotor.

14. The single phase permanent magnet synchronous motor of claim 13 , wherein the circuit board is supported by one of the pair of power supply terminals.

15. The single phase permanent magnet synchronous motor of claim 13 , wherein the stator further comprises a connecting member disposed on the winding bracket, the connecting member is separately formed and electrically connects the winding to the electronic circuit, the electronic circuit comprises a circuit board, and the circuit board is supported by the connecting member.

Assignees

• Johnson Electric Sa
• Johnson Electric Int Ag

Inventors

• Li Min
• Chong Kok Ang
• Zhang xiao lin
• Wang Hai Yang
• Reddy Moola Mallikarjuna

Classifications

• H02K11/215

  Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements · CPC title

• H02K5/225 Primary

  Terminal boxes or connection arrangements (specially adapted for submersible motors H02K5/132) · CPC title

• H02K3/521

  applicable to stators only · CPC title

• H02K15/06

  Embedding prefabricated windings in the machines · CPC title

• H02K1/18 Primary

  Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures · CPC title