CN2171620Y - Dissipation braking device for dewtering motor of household washing machine - Google Patents
Dissipation braking device for dewtering motor of household washing machine Download PDFInfo
- Publication number
- CN2171620Y CN2171620Y CN 93223413 CN93223413U CN2171620Y CN 2171620 Y CN2171620 Y CN 2171620Y CN 93223413 CN93223413 CN 93223413 CN 93223413 U CN93223413 U CN 93223413U CN 2171620 Y CN2171620 Y CN 2171620Y
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- CN
- China
- Prior art keywords
- circuit
- relay
- electric motor
- motor
- washing machine
- 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
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Abstract
The utility model provides a dissipation braking device for a dewatering motor of a household washing machine, which is provided with a casing, a circuit board and a wire connecting terminal. The utility model is characterized in that the circuit board is provided with a control unit circuit (I) and a power supply unit circuit (II) which can provide direct current power supply for the control unit circuit. The circuit (I) comprises a control circuit and a delaying control circuit. The contact points of two relays in the circuit (I) are respectively electrically connected with the taps of the main winding and the secondary winding of a dewatering motor and the power supply loop of a center tap. The circuit board is also provided with two rectifying diodes used for providing direct current for the motor. The two rectifying diodes are respectively connected in series with the power supply loops of the main winding and the secondary winding of the motor. The utility model can be used for replacing a mechanical friction type braking device.
Description
The washing machine dehydration electric motor dynamic braking device (hereinafter to be referred as the dynamic braking device) that the utility model relates to is applicable to the single-phase asynchronous motor fast braking, is specially adapted to have the dehydration drive motors braking of the twin-tub washing machine of cylinder or single cylinder family expenses Water Extraction Machinery single-phase capacitor running of dewatering.
In (under the full load condition) process of normal operation, when raising dehydration artificially when covering, the Water Extraction Machinery drive motors should stop operating and cut off the power supply of dehydration electric motor in 10 seconds with Water Extraction Machinery for household electrical appliance safety standard regulation, home laundry.And the known arrestment mechanism system that is used for family expenses Water Extraction Machinery dehydration electric motor adopts traditional mechanical friction brake structure, it is more that the mechanical friction brake apparatus exists machine components, cost is higher, defectives such as assembling, debugging complexity, in use for some time, owing to wearing piece wearing and tearing or adjust the improper brake failure that makes, the fault that can cause burning motor, fault rate is higher, and maintenance is inconvenient.
The purpose of the utility model is to provide a kind of washing machine dehydration electric motor dynamic braking device, become known mechanical braking and be dynamic braking, to overcome the above-mentioned defective that mechanical brake device exists, further purpose is to improve braking effect, reduces the brake apparatus cost.
The technical scheme that adopts that achieves the above object is: this washing machine dehydration electric motor dynamic braking device, include housing (1), be provided with circuit board (2) in the housing, and also have on the housing and be used to make this device to connect civil power, connect the binding post of dehydration electric motor, it is characterized in that said circuit board (2) is provided with control module circuit (I) reaches provides dc supply for this circuit power unit circuit (II), wherein control module circuit (I) contains by circuit (II) power supply and by gauge tap (K) and relay (J
1) control circuit that composes in series; Also containing by circuit (II) power supply, load is relay (J
2) delay control circuit; Relay (the J of control circuit
1) normally opened contact (J
1-1) by binding post (DZ
2) be used for being serially connected in dehydration electric motor main winding current supply circuit, its normally-closed contact (J
1-2) by binding post (DZ
3) be used for being serially connected in dehydration electric motor and pay the winding current supply circuit, delay control circuit relay (J
2) normally opened contact (J
2-1) by binding post (DZ
5) be used for being serially connected with dehydration electric motor centre cap current supply circuit; Also be provided with the rectification diode (D that is used to dehydration electric motor that direct current supply is provided on the said circuit board (2)
6) and (D
7), D wherein
6With relay (J
1) normally opened contact (J
1-1) parallel connection, D
7With relay (J
1) normally-closed contact (J
1-2) series connection.
Said delay control circuit comprises the positive level of the output that starts from circuit (II) of being powered by DC power source unit circuit (II), the gauge tap (K), the diode (D that bear level and be connected in series successively finally
5), electric capacity (C
3); Two transistor (3DG that also comprise compound connection
1) (3DG
2), transistor (3DG wherein
1) base stage is by resistance (R
2) meet electric capacity (C
3) positive level, transistor (3DG
2) emitter stage connection circuit (II) output negative terminal, its colelctor electrode meets load-relay (J
2).
Said power unit circuit (II) comprises following circuit: comprise by electric capacity (C
1) and resistance (R
1) reduction voltage circuit that composes in parallel; Comprise be connected in series with reduction voltage circuit by diode (D
1～D
4) rectifier circuit formed; Comprise be electrically connected on rectifier circuit and by electric capacity (C
2) and voltage-stabiliser tube (DW) filtering, the mu balanced circuit that compose in parallel; Being made of foregoing circuit provides 12 couchers to make the dc source of voltage for control module circuit (I).
Accompanying drawing has provided the embodiment of this energy consumption brake apparatus
Fig. 1 is the outline drawing of this energy consumption brake apparatus.
Fig. 2 is the electric functional-block diagram of this energy consumption brake apparatus.
Fig. 3 is the electrical principle organigram of this energy consumption brake apparatus.
Fig. 4 is an electrical equipment detail list among Fig. 3.
Further describe the formation of this energy consumption brake apparatus below in conjunction with accompanying drawing, the course of work, and operation principle.
1 is housing among the figure, and 2 is circuit board, DZ
1～DZ
7Be binding post, it is DZ
1DZ
7For meeting the binding post of city's electrical network (220V), DZ
2For being used to be electrically connected dehydration electric motor main winding terminal, DZ
3Pay winding terminal, DZ for being used to be electrically connected dehydration electric motor
4DZ
6For being electrically connected the terminal of gauge tap (K), DZ
5For being electrically connected the terminal of dehydration electric motor centre cap.
D is dehydration electric motor (an abbreviation motor) among Fig. 2, and it is the single-phase asynchronous permanent split capacitor motor of commercially available Water Extraction Machinery, and it externally is electrically connected with the main winding tap, pays winding (promptly starting winding) tap and three taps of centre cap.C is this electric motor starting electric capacity among the figure.K is gauge tap (an abbreviation switch) among the figure, when using Water Extraction Machinery, system needs the artificial switch of handling, this switch also can be selected the general timer switch of washing machine for use, on circuit board (2), be provided with power unit circuit (II) and control module circuit (I) two partial circuit unit, and two circuit units are electrically connected in the current supply circuit of Water Extraction Machinery dehydration electric motor.
Referring to Fig. 3, the circuit board of this energy consumption brake apparatus (2) is gone up the power unit circuit (II) that is provided with, and comprises by electric capacity (C
1) and resistance (R
1) reduction voltage circuit (select resistance, hold step-down and do not select for use transformer mainly to consider the cost problem) that composes in parallel, comprise by diode (D
1～D
4) rectifier circuit that constitutes, comprise by electric capacity (C
2) and voltage-stabiliser tube (DW) filtering, the voltage stabilizing road that compose in parallel, make 220 volts of electric mains through step-down, rectification, filtering, the voltage stabilizing process is that control module circuit (I) provides 12V dc supply.Control module circuit (I) comprises by switch (K) and relay (J
1) control circuit formed, wherein resistance (R
3) for discharging resistance; Comprise by switch (K), diode (D
5), resistance (R
2), triode (3DG
1) (3DG
2), relay (J
2) the composition delay control circuit.Be serially connected with two diode (D of motor master, pair winding respectively
6) (D
7) provide DC current for dynamic braking.Relay (J
1) (J
2) each contact is electrically connected in the current supply circuit of dehydration electric motor (D) as shown in Figure 3.
Referring to Fig. 3, this device course of work is as described below.When connecting 220V electric main power supply, because switch (K) opens circuit transistor (3DG
1) (3DG
2) be in cut-off state, relay (J
2) not adhesive, it is often opened and touches pass (J
2-1) disconnect, motor (D) is not worked.When switch (K) is closed, relay (J
1) adhesive, its normally opened contact (J
1-1) conducting, normally-closed contact (J
1-2) disconnect, meanwhile the 12V direct current is by diode (D
5), electric capacity (C
3) charging, and make transistor (3DG
1) (3DG
2) the multiple tube saturation conduction formed, relay (J
2) adhesive, its contact (J
2-1) conducting, the 220V alternating current is by (J like this
2-1), motor (D) centre cap, more respectively the master by motor (D), pay winding, relay (J
1) contact (J
1-1) constituting the loop, motor (D) is in normal operating conditions, that is the Water Extraction Machinery duty of dewatering, when switch (K) disconnects (when dehydration finishes), relay (J
1-1) disconnect its normally-closed contact (J
1-2) conducting, the electric capacity (C in the delay control circuit
3) begin discharge, because it is in series with diode (D
5), institute is so that C
3, D
5, J
1, R
3The loop can not be constituted, resistance (R can only be passed through
2) offer transistor (3DG
1) base stage, make transistor (3DG
1) (3DG
2) still keep saturation conduction state, relay (J
2) still conducting.This moment, the 220V alternating current was by contact (J
2-1), motor (D) centre cap, respectively by main, pay winding and diode (D
6) (D
7) the formation loop.Because of the master, pay winding respectively with diode (D
6) (D
7) series connection, so the electric current by master, pair winding is the positive half cycle (or negative half period) of alternating current, halfwave rectifier just, give in the stator winding of motor and feed direct current, make by galvanic stator and produce the stationary magnetic field, this moment is when the rotor cutting magnetic line in the stationary magnetic field that rotates by inertia, produce induced current, and electrical conductor is stressed in the stationary magnetic field, promptly can produce and the rightabout new moment of moment of inertia, force the rapid stall of motor (generally within several seconds), reach the dynamic braking purpose.After 9～10 seconds, electric capacity (C
3) discharge end substantially, supply with transistor (3DG
1) base current reduce, the electric current by multiple tube is less than relay (J
2) during operating current, its contact (J then
2-1) disconnect, motor power disconnects, and reaches the purpose of cutting off the electricity supply.
Than the mechanical friction brake apparatus following advantage is arranged with this energy consumption brake apparatus solving on the washing machine dehydration electric motor braking problem: the used element of this device is less, and appearance and size is less, has reduced the cost of manufacture of brake apparatus; Simple in structure, be easy to install, need not debug by machinery; Also have advantages such as fault rate is low, reliable.This device is specially adapted to the fast braking of laundry machine dehydration motor, but can be used for other technical field that needs make asynchronous monophase machine fast braking widely according to the structure and the operation principle of this device.
Claims (3)
1, a kind of washing machine dehydration electric motor dynamic braking device, include housing (1), be provided with circuit board (2) in the housing, and also have on the housing and be used to make this device to connect civil power, connect the binding post of dehydration electric motor, it is characterized in that said circuit board (2) is provided with control module circuit (I) reaches provides dc supply for this circuit power unit circuit (II), wherein control module circuit (I) contains by circuit (II) power supply and by gauge tap (K) and relay (J
1) control circuit that composes in series; Also containing by circuit (II) power supply, load is relay (J
2) delay control circuit; Relay (the J of control circuit
1) normally opened contact (J
1-1) by binding post (DZ
2) be used for being serially connected in dehydration electric motor main winding current supply circuit, its normally-closed contact (J
1-2) by binding post (DZ
3) be used for being serially connected in dehydration electric motor and pay the winding current supply circuit, delay control circuit relay (J
2) normally opened contact (J
2-1) by binding post (DZ
5) be used for being serially connected with dehydration electric motor centre cap current supply circuit; Also be provided with the commutation diode (D that is used to dehydration electric motor that direct current supply is provided on the said circuit board (2)
6) and (D
7), commutation diode (D wherein
6) and relay (J
1) normally opened contact (J
1-1) in parallel, D
7With relay (J
1) normally-closed contact (J
1-2) series connection.
2, by the described washing machine dehydration electric motor of claim 1 dynamic braking device, it is characterized in that said load is relay (J
2) delay control circuit constitute by following structure: it comprises and starts from circuit (II) output cathode, negative pole and gauge tap (K), the diode (D of serial connection successively finally by DC power source unit circuit (II) power supply
5), electric capacity (C
3); Two transistor (3DG that also comprise compound connection
1) (3DG
2), transistor (3DG wherein
1) base stage by resistance (R
2) meet electric capacity (C
3) positive pole, transistor (3DG
2) emitter stage connection circuit (II) is exported negative terminal, its colelctor electrode meets load-relay (J
2).
3, by claim 1 or 2 described washing machine dehydration electric motor dynamic braking devices, it is characterized in that power unit circuit (II) comprises following circuit: comprise by electric capacity (C
1) and resistance (R
1) reduction voltage circuit that composes in parallel; Comprise be connected in series with reduction voltage circuit by diode (D
1～D
4) rectifier circuit formed; Comprise be electrically connected on rectifier circuit and by electric capacity (C
2) and voltage-stabiliser tube (DW) filtering, the mu balanced circuit that compose in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93223413 CN2171620Y (en) | 1993-09-03 | 1993-09-03 | Dissipation braking device for dewtering motor of household washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93223413 CN2171620Y (en) | 1993-09-03 | 1993-09-03 | Dissipation braking device for dewtering motor of household washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2171620Y true CN2171620Y (en) | 1994-07-13 |
Family
ID=33801736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93223413 Expired - Fee Related CN2171620Y (en) | 1993-09-03 | 1993-09-03 | Dissipation braking device for dewtering motor of household washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2171620Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364476C (en) * | 2002-05-21 | 2008-01-30 | 沃维克股份有限公司 | Electric motor operated kitchen device |
| CN100367653C (en) * | 2005-09-30 | 2008-02-06 | 青岛地恩地机电科技股份有限公司 | Single-phase AC motor starting method |
| CN100441769C (en) * | 2002-02-28 | 2008-12-10 | 金羚电器有限公司 | Electric household dewatering machine with energy-dissipating brake circuit |
| CN102354131A (en) * | 2011-07-22 | 2012-02-15 | 宁波乐士实业有限公司 | Suspended dewatering machine control system and control method |
-
1993
- 1993-09-03 CN CN 93223413 patent/CN2171620Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441769C (en) * | 2002-02-28 | 2008-12-10 | 金羚电器有限公司 | Electric household dewatering machine with energy-dissipating brake circuit |
| CN100364476C (en) * | 2002-05-21 | 2008-01-30 | 沃维克股份有限公司 | Electric motor operated kitchen device |
| CN100367653C (en) * | 2005-09-30 | 2008-02-06 | 青岛地恩地机电科技股份有限公司 | Single-phase AC motor starting method |
| CN102354131A (en) * | 2011-07-22 | 2012-02-15 | 宁波乐士实业有限公司 | Suspended dewatering machine control system and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |