CN202634333U - Circuit structure of motor started by resistor and run by capacitor - Google Patents

Circuit structure of motor started by resistor and run by capacitor Download PDF

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Publication number
CN202634333U
CN202634333U CN 201220229518 CN201220229518U CN202634333U CN 202634333 U CN202634333 U CN 202634333U CN 201220229518 CN201220229518 CN 201220229518 CN 201220229518 U CN201220229518 U CN 201220229518U CN 202634333 U CN202634333 U CN 202634333U
Authority
CN
China
Prior art keywords
motor
normally
starting
closed
capacitor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220229518
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Chinese (zh)
Inventor
林仕供
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FUJIAN YOUDI MOTOR MANUFACTURING CO LTD
Original Assignee
FUJIAN YOUDI MOTOR MANUFACTURING CO LTD
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FUJIAN YOUDI MOTOR MANUFACTURING CO LTD filed Critical FUJIAN YOUDI MOTOR MANUFACTURING CO LTD
Priority to CN 201220229518 priority Critical patent/CN202634333U/en
Application granted granted Critical
Publication of CN202634333U publication Critical patent/CN202634333U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a circuit structure of a motor started by a resistor and run by a capacitor, comprising a stator composed of a main winding and an auxiliary winding which are connected in parallel, wherein the output end of the auxiliary winding is provided with a wire and a running capacitor which are connected in parallel, one end of the wire is connected with a normally closed contact of a switch, and one end of the running capacitor is connected with a normally open contact of the switch. When the motor is started, the switch and the normally closed contact are closed and the normally open contact is opened; and when the motor is running, the switch and the normally closed contact are opened and the normally open contact is closed. By employing the circuit structure in the utility model, when the motor is started, the normally open contact is opened and the running capacitor does not work; the normally closed contact is closed and a resistor is used to start the motor so that the starting torque is large and the motor can be normally started; when the motor is running, the normally closed contact is opened, the normally open contact is closed, and the running capacitor works so that the motor has good running performance; and meanwhile, as a starting capacitor is not set, fault does not occur to a starting circuit and stable and normal running of the motor can be ensured.

Description

A kind of circuit structure of resistance starting capacitor-operated motor
Technical field
The utility model relates to the electric motor starting technical field, relates in particular to the circuit structure of resistance starting capacitor-operated motor.
Background technology
The start mode of motor mainly contains capacitor operating starting, two-capacitance capacitive starting and resistance starting at present.Wherein, The capacitor operating starting is as shown in Figure 1, and main winding 01 and auxiliary winding 02 that it comprises motor stator are connected with operation electric capacity 04 between the exit of main winding 01 and auxiliary winding 02; Though the behavior in service of this start mode motor is relatively good, there is the little shortcoming of electric motor starting moment.The two-capacitance capacitive starting is as shown in Figure 2; It comprises the main winding 01 and auxiliary winding 02 of motor stator; Be parallel with starting capacitance 03 and running electric capacity 04 between the exit of main winding 01 and auxiliary winding 02; Starting capacitance 03 is in series with switch 07, because of starting capacitance 03 perishable, thereby influence the normal operation of motor.Resistance starting is as shown in Figure 3, and main winding 01 and auxiliary winding 02 that it comprises motor stator are connected with switch 07 between the exit of main winding 01 and auxiliary winding 02; Though this start mode starting torque is big; But because of running electric capacity is not set, the motor rotation performance is bad, and power factor (PF) is low.
Summary of the invention
The purpose of the utility model provides and does not a kind ofly need starting capacitance, and the circuit structure of the big resistance starting capacitor-operated motor of starting torque.
For realizing above-mentioned purpose; The circuit structure of a kind of resistance starting capacitor-operated motor of the utility model; It comprises the stator that is composed in parallel by main winding and auxiliary winding; The output of said auxiliary winding is provided with the lead and running electric capacity of parallel connection, and lead one end connects the normally-closed contact of switch, and running electric capacity one end connects the normally opened contact of switch; When electric motor starting, switch and normally-closed contact are closed, and normally opened contact breaks off; When motor rotation, switch and normally-closed contact break off, and normally opened contact is closed.
The utility model adopts above circuit structure, and when electric motor starting, normally opened contact breaks off, and running electric capacity is not worked; Normally-closed contact is closed, adopts resistance starting, so starting torque is big, and motor ability normal starting; When motor rotation, normally-closed contact breaks off, and normally opened contact is closed, and the work of running electric capacity is so the behavior in service of motor is relatively good; Simultaneously, starting capacitance is not set, so starting circuit easy fault not, motor can be stablized, normal operation.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation:
Fig. 1 is the structural representation of existing capacitor operating starting;
Fig. 2 is the structural representation of existing two-capacitance capacitive starting;
Fig. 3 is the structural representation of existing resistance starting;
Fig. 4 is the sketch map of the circuit structure of the utility model resistance starting capacitor-operated motor.
Embodiment
As shown in Figure 4; The circuit structure of a kind of resistance starting capacitor-operated motor of the utility model; It comprises the stator that is composed in parallel by main winding 1 and auxiliary winding 2; The output of said auxiliary winding 2 is provided with the lead 3 and running electric capacity 4 of parallel connection, and lead 3 one ends connect the normally-closed contact 5 of switch 7, and running electric capacity 4 one ends connect the normally opened contact 6 of switch 7; When electric motor starting, switch 7 and normally-closed contact 5 closures, normally opened contact 6 breaks off; When motor rotation, switch 7 breaks off normally opened contact 6 closures with normally-closed contact 5.
Adopt above structure, when electric motor starting, normally opened contact 6 breaks off, and running electric capacity 4 is not worked; Normally-closed contact 5 closures adopt resistance starting, so starting torque is big, and motor ability normal starting; When motor rotation, normally-closed contact 5 breaks off, normally opened contact 6 closures, and 4 work of running electric capacity are so the behavior in service of motor is relatively good; Simultaneously, starting capacitance is not set, so starting circuit easy fault not, motor can be stablized, normal operation.

Claims (1)

1. the circuit structure of a resistance starting capacitor-operated motor; It comprises the stator that is composed in parallel by main winding and auxiliary winding; It is characterized in that: the output of said auxiliary winding is provided with the lead and running electric capacity of parallel connection; Lead one end connects the normally-closed contact of switch, and running electric capacity one end connects the normally opened contact of switch; When electric motor starting, switch and normally-closed contact are closed, and normally opened contact breaks off; When motor rotation, switch and normally-closed contact break off, and normally opened contact is closed.
CN 201220229518 2012-05-21 2012-05-21 Circuit structure of motor started by resistor and run by capacitor Expired - Fee Related CN202634333U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220229518 CN202634333U (en) 2012-05-21 2012-05-21 Circuit structure of motor started by resistor and run by capacitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220229518 CN202634333U (en) 2012-05-21 2012-05-21 Circuit structure of motor started by resistor and run by capacitor

Publications (1)

Publication Number Publication Date
CN202634333U true CN202634333U (en) 2012-12-26

Family

ID=47387474

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220229518 Expired - Fee Related CN202634333U (en) 2012-05-21 2012-05-21 Circuit structure of motor started by resistor and run by capacitor

Country Status (1)

Country Link
CN (1) CN202634333U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
RINS Preservation of patent right or utility model and its discharge
PP01 Preservation of patent right

Effective date of registration: 20150105

Granted publication date: 20121226

PD01 Discharge of preservation of patent

Date of cancellation: 20160105

Granted publication date: 20121226

RINS Preservation of patent right or utility model and its discharge
PP01 Preservation of patent right

Effective date of registration: 20160105

Granted publication date: 20121226

PD01 Discharge of preservation of patent

Date of cancellation: 20170105

Granted publication date: 20121226

RINS Preservation of patent right or utility model and its discharge
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121226

Termination date: 20150521

CF01 Termination of patent right due to non-payment of annual fee