Stator, single phase motor and fan

Patent metadata

Field	Value
Publication number	US-2017279342-A1
Application number	US-201715471558-A
Country	US
Kind code	A1
Filing date	Mar 28, 2017
Priority date	Mar 28, 2016
Publication date	Sep 28, 2017
Grant date	—

Abstract

A stator includes a stator core including stator poles and a yoke connecting the stator poles, at least one winding wound around the stator core and connecting terminals configured to connect with an external power source to supply power to the winding and located at one end of the yoke adjacent the stator poles. A single phase motor and a ventilation fan are also provided.

First claim

1 . A stator comprising:
a stator core including stator poles and a yoke connecting the stator poles; at least one winding wound around the stator core; and connecting terminals configured to connect with an external power source to supply power to the winding and located at one end of the yoke adjacent the stator poles.

2 . The stator of claim 1 , further comprising a winding bracket between the stator core and the winding, the connecting terminals being fixed to the winding bracket.

3 . The stator of claim 2 , wherein the number of the stator poles is two, the yoke is in a U-shaped form and the winding bracket comprises a first bracket and a second bracket arranged in parallel with each other, the first bracket or the second bracket having a winding portion and an inserting portion disposed at one end of the winding portion, the connecting terminals being disposed on the inserting portion.

4 . The stator of claim 2 , further comprises an electronic circuit and a connecting member disposed on the winding bracket, the connecting member being separately formed and electrically connected the winding with the electronic circuit.

5 . The stator of claim 4 , wherein the number of the connecting terminals is two, the electronic circuit and the winding are in series connected between the two connecting terminals, one of the two connecting terminals being electrically connected with the electronic circuit and both ends of the winding being electrically connected with the connecting member and the other one of the two connecting terminals respectively.

6 . The stator of claim 4 , wherein the connecting member, the connecting terminals and the electronic circuit are all disposed on the winding bracket and located at one end of the yoke adjacent the stator pole.

7 . The stator of claim 4 , wherein the electronic circuit comprises a magnetic sensor disposed adjacent the connecting terminals and between the connecting terminals and the connecting member.

8 . A stator comprising:
a stator core including stator poles and a yoke connecting the stator poles; at least one winding wound around the stator core; a winding bracket arranged between the stator core and the winding, at least one support portion arranged at one end of the winding bracket adjacent the stator poles; and a circuit board fixed to the winding bracket and supported by the at least one support portion.

9 . The stator of claim 8 , wherein the number of the stator poles is two and the yoke is in a U-shaped form.

10 . The stator of claim 8 , wherein the winding bracket supports the circuit board only at one end adjacent the two stator poles.

11 . The stator of claim 8 , further comprising a connecting member electrically connecting the winding with the circuit board, the connecting member being separately formed and soldered to the circuit board.

12 . The stator of claim 8 , further comprising a first connecting terminal which includes a body, a connecting end for connecting to a power source, a connecting portion electrically connected with the circuit board, the body, the connecting end and the connecting portion of the first connecting terminal being all integrally formed as a monolithic member.

13 . The stator of claim 12 , further comprising a second connecting terminal which includes a body, a connecting end for connecting to the power source and a wire-connecting portion electrically connected with the winding, the body, the connecting end and the wire-connecting portion of the second connecting terminal being all integrally formed as a monolithic member.

14 . The stator of claim 8 , wherein the circuit board has no overlap with the end of the winding bracket away from the stator poles.

15 . The stator of claim 8 , wherein the circuit board includes a magnetic sensor, the magnetic sensor and the winding being located at two sides of the support portion respectively.

16 . The stator of claim 8 , wherein the circuit board is supported only at one side adjacent the stator poles.

17 . A single phase motor comprising:
a rotor; and a stator magnetically coupled to the rotor and comprising:
a stator core;
an insulating bracket mounted to the stator core,
a winding wound around the insulating bracket; and
a circuit board mounted to the insulating bracket adjacent the winding.

18 . The single phase motor of claim 17 , wherein the rotor comprises a rotary shaft, one end of the rotary shaft protrudes out of the rotor and stator, and the circuit board is mounted to one side of the insulating bracket away from a protruding direction of the rotary shaft.

19 . A ventilation fan comprising:
an impeller; and a single phase motor comprising:
a rotor;
a stator magnetically coupled to the rotor and comprising:
a stator core;
an insulating bracket mounted to the stator core,
a winding wound around the insulating bracket; and
a circuit board mounted to the insulating bracket adjacent the winding;

wherein the impeller is mounted to a rotary shaft of the single phase motor to be driven by the rotary shaft.

20 . The fan of claim 19 , wherein the circuit board is mounted to one side of the insulating bracket opposite from the impeller and is adjacent the winding, and an airflow generated by the impeller flows over and cool the circuit board.

21 . The fan of claim 19 , wherein the impeller has an outer diameter greater than a size of the single phase motor, and the circuit board and the winding are located within a flow passage of the airflow generated by the impeller.

Assignees

• Johnson Electric Sa

Inventors

• Li Min
• Chong Kok Ang
• Zhang xiao lin
• Wang Hai Yang
• Reddy Moola Mallikarjuna
• Li Yue
• Zhou Chui You
• Yi hong liang
• Zhang Yong Gang
• Wang Yong

Classifications

• H02K11/25

  Devices for sensing temperature, or actuated thereby · CPC title

• H02K1/141

  consisting of C-shaped cores · CPC title

• H02K11/215

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

• H02K2203/12

  Machines characterised by the bobbins for supporting the windings · CPC title

• H02K3/18

  Windings for salient poles · CPC title