CN201523215U - Electric appliance control energy-saving protection switch - Google Patents
Electric appliance control energy-saving protection switch Download PDFInfo
- Publication number
- CN201523215U CN201523215U CN2009200314681U CN200920031468U CN201523215U CN 201523215 U CN201523215 U CN 201523215U CN 2009200314681 U CN2009200314681 U CN 2009200314681U CN 200920031468 U CN200920031468 U CN 200920031468U CN 201523215 U CN201523215 U CN 201523215U
- Authority
- CN
- China
- Prior art keywords
- join
- switch
- rectifier diode
- power line
- relay
- 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
Links
Images
Landscapes
- Motor And Converter Starters (AREA)
- Protection Of Generators And Motors (AREA)
Abstract
The utility model provides an electric appliance control energy-saving protection switch, which comprises a casing, wherein a circuit board is arranged in the casing, a starting press key AN arranged on the circuit board is arranged on the casing, the circuit board is connected with a three-phase AC motor through a conducting wire, and forms mutual crossed interlocking control through a power cable overload open-phase detection protection circuit and a DC contactor electricity-saving switch circuit. Because the utility model adopts the power cable overload open-phase detection protection circuit and the DC contactor electricity-saving switch circuit for mutually forming the crossed interlocking control, DC electric appliances can be effectively protected, the structure is simple, the operation is reliable, and the utility model is applicable to the operation control of high-voltage high-power electric appliance equipment and the operation control of low-voltage low-power electric appliance equipment, and has the advantages of electric energy saving, difficult burnt damage and small size compared with the existing AC contactor type switch.
Description
Technical field
The utility model relates to alternating current-direct current electrical equipment energy-saving protective, is specially a kind of electrical equipment control energy-saving protective switch.
Background technology
The control protection switch that is used for industrial civilian ac electric apparatus equipment adopts A.C. contactor formula switch mostly, and the characteristics of A.C. contactor formula switch are simple in structure, easy for installation; But in the middle of using, exist power consumption greatly, easily burn, operating noise pollutes big and the bulky defective of switchgear.
Summary of the invention
The purpose of this utility model provides a kind of electrical equipment control energy-saving protective switch; can transship faults such as the phase failure, contact be malfunctioning to electric equipment and protect, have simple for structure, security performance is high, power consumption is little, volume is little, the characteristics that not influenced by change in voltage and variation of ambient temperature.
The purpose of this utility model is achieved through the following technical solutions: electrical equipment control energy-saving protective switch, and it has housing, is provided with wiring board in the housing, and the starting button AN on the wiring board is installed on the housing, and wiring board is connected by lead with three-phase alternating-current motor; Described wiring board detects protective circuit by the phase failure of power line overload and the D.C. contactor electricity-saving on-off circuit is formed mutual crossbinding lock control, motor by the three-phase power line respectively with wiring board on bridge rectifier diode D1-D12 one end join after more respectively with K switch 1 ', K2 ' and K3 ' join, bridge rectifier diode D1-D4 and direct current contact-relay J1 join, bridge rectifier diode D5-D8 and direct current contact-relay J2 join, bridge rectifier diode D9-D12 and direct current contact-relay J3 join K switch 1 ', K2 ' and K3 ' respectively with fusing fuse RD1, RD2 and RD3 join afterwards and the A of master switch K, B and C end join; Bridge rectifier diode D1-D12 other end series connection ground connection, rectifier diode D13 one end and capacitor C one end, power line relay CJ one end join, ground connection after the rectifier diode D13 other end and the capacitor C other end join; After power line relay CJ two ends join with earial drainage diode D14 respectively more respectively with button AN and switch QA on K1, K2 and K3 join, K1, K2 on button AN and the switch QA and K3 join with fuse RD4 one end respectively, and the fuse RD4 other end and power line join.
Advantage of the present utility model is: owing to adopt power line overload phase failure detection protection and D.C. contactor electricity-saving on-off circuit to constitute the crossbinding lock control mutually; dc electric apparatus is protected; simple in structure, reliable; be applicable to the operation control of high-power electric equipment and the operation control of low pressure small-power electrical equipment equipment; have than existing A.C. contactor formula joint and economize electric energy, the advantage that be difficult for burning, volume is little.
Description of drawings
Fig. 1 is a structural representation of the present utility model; Fig. 2 is the circuit theory diagrams of wiring board 3 in Fig. 1 protective device.
Embodiment
With reference to the accompanying drawings the utility model is elaborated.
1 is the housing of protection switch among the figure, is provided with wiring board 3 in the housing 1, and the starting button AN on the wiring board 3 is installed on the housing 1, and wiring board 3 and three-phase alternating-current motor 2 are connected by lead; Described wiring board 3 detects protective circuit by the phase failure of power line overload and the D.C. contactor electricity-saving on-off circuit is formed mutual crossbinding lock control, after motor 2 joins with bridge rectifier diode D1-D12 one end respectively by the three-phase power line more respectively with K switch 1 ', K2 ' and K3 ' join, bridge rectifier diode D1-D4 and direct current contact-relay J1 join, bridge rectifier diode D5-D8 and direct current contact-relay J2 join, bridge rectifier diode D9-D12 and direct current contact-relay J3 join K switch 1 ', K2 ' and K3 ' respectively with fusing fuse RD1, RD2 and RD3 join afterwards and the A of master switch K, B and C end join; Bridge rectifier diode D1-D12 other end series connection ground connection, rectifier diode D13 one end and capacitor C one end, power line relay CJ one end join, ground connection after the rectifier diode D13 other end and the capacitor C other end join; After power line relay CJ two ends join with earial drainage diode D14 respectively more respectively with button AN and switch QA on K1, K2 and K3 join, K1, K2 on button AN and the switch QA and K3 join with fuse RD4 one end respectively, and the fuse RD4 other end and power line join.The described overload phase failure detects protective circuit and according to the electrical source of power number of phases low-voltage direct touch controls switch is set, the utility model is that example is provided with three tunnel detection protection direct current touch controls switches with three-phase power electricity, every road is to provide direct current by bridge rectifier for relay, alternating current is from phase power line and zero line, be that diode D1-D12 is the rectifier diode of three tunnel control protection switches, J1, J2 and J3 are the direct current contact-relay, K switch 1, K2 and the K3 of direct current contact-relay J1, J2 and J3 control second portion D.C. contactor switching circuit QA; The D.C. contactor electricity-saving on-off circuit is made up of rectifier diode D1, protection capacitor C, power line relay CJ, switch QA and starting button AN, provide alternating current by power line and zero sequence line, for CJ provides direct current, power line circuit breaker CJ controls K switch 1 ', K2 ' and the K3 ' on the power line after the D13 halfwave rectifier; Overload protection of the present utility model is to constitute by series connection fusing fuse RD1, RD2 and RD3 in the line; the fuse wire of fusing fuse RD1, RD2 and RD3 blows after the electrical equipment overload short circuit; fusing blowout in phase safeties are wherein arranged; power line relay CJ moves at once with each phase dump, avoids damaging electric equipment.
When the utility model is worked; load equipment is an example with three-phase alternating-current motor 2; closed master switch K; whole switching device is in treats operating state; when pressing starting button AN; alternating current is powered to relay CJ after rectifier diode D13 halfwave rectifier by power line; power line relay CJ makes K switch 1 '; K2 ' and K3 ' closure; electrical source of power is connected; motor 2 is started working; meanwhile three grades of detection protective circuits also provide electric current to be direct current contact-relay J1 behind bridge rectifier diode D1-D12 bridge rectifier by power line and zero sequence line; J2 and J3 provide direct current; make K switch 1; K2 and K3 adhesive simultaneously, it is in running order to decontrol the whole electrical installation of button AN.When the three-phase power line of motor 2 has a phase short circuit or an overload; fuse RD then blows; fuse RD blows this phase power line does not then have electric current; make and detect the protective circuit decompression; 1 of relay J discharges K1, and K1 opens and just cut off circuital current of the present utility model, and power line relay CJ discharges immediately; K switch 1 ', K2 ' and K3 ' are opened at once, and motor 2 quits work.Protection switch of the present utility model also can be used for the operation control of single-phase motor except that being used for above-mentioned threephase motor operation control, connect one during use and detect protective circuit mutually and get final product.Each circuit element described in the utility model is commercially available common components.For detailed description is a known technology.
Claims (1)
1. electrical equipment control energy-saving protective switch, it is characterized in that: it has housing (1), is provided with wiring board (3) in the housing (1), and the starting button AN on the wiring board (3) is installed on the housing (1), and wiring board (3) is connected by lead with three-phase alternating-current motor (2); Described wiring board (3) detects protective circuit by the phase failure of power line overload and the D.C. contactor electricity-saving on-off circuit is formed mutual crossbinding lock control, motor (2) by the three-phase power line respectively with wiring board (3) on bridge rectifier diode D1-D12 one end join after more respectively with K switch 1 ', K2 ' and K3 ' join, bridge rectifier diode D1-D4 and direct current contact-relay J1 join, bridge rectifier diode D5-D8 and direct current contact-relay J2 join, bridge rectifier diode D9-D12 and direct current contact-relay J3 join K switch 1 ', K2 ' and K3 ' respectively with fusing fuse RD1, RD2 and RD3 join afterwards and the A of master switch K, B and C end join; Bridge rectifier diode D1-D12 other end series connection ground connection, rectifier diode D13 one end and capacitor C one end, power line relay CJ one end join, ground connection after the rectifier diode D13 other end and the capacitor C other end join; After power line relay CJ two ends join with earial drainage diode D14 respectively more respectively with button AN and switch QA on K1, K2 and K3 join, K1, K2 on button AN and the switch QA and K3 join with fuse RD4 one end respectively, and the fuse RD4 other end and power line join.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200314681U CN201523215U (en) | 2009-08-13 | 2009-08-13 | Electric appliance control energy-saving protection switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200314681U CN201523215U (en) | 2009-08-13 | 2009-08-13 | Electric appliance control energy-saving protection switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201523215U true CN201523215U (en) | 2010-07-07 |
Family
ID=42509391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200314681U Expired - Fee Related CN201523215U (en) | 2009-08-13 | 2009-08-13 | Electric appliance control energy-saving protection switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201523215U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140878A (en) * | 2015-08-26 | 2015-12-09 | 芜湖市凯鑫避雷器有限责任公司 | High voltage falling type fuse over-current switching protective device |
| CN105207177A (en) * | 2015-08-26 | 2015-12-30 | 芜湖市凯鑫避雷器有限责任公司 | Automatic open-phase protective device of high-tension drop type fuse |
-
2009
- 2009-08-13 CN CN2009200314681U patent/CN201523215U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140878A (en) * | 2015-08-26 | 2015-12-09 | 芜湖市凯鑫避雷器有限责任公司 | High voltage falling type fuse over-current switching protective device |
| CN105207177A (en) * | 2015-08-26 | 2015-12-30 | 芜湖市凯鑫避雷器有限责任公司 | Automatic open-phase protective device of high-tension drop type fuse |
| CN105207177B (en) * | 2015-08-26 | 2018-03-20 | 芜湖市凯鑫避雷器有限责任公司 | High voltage drop-out type fuse cutout phase shortage automatic safety device |
| CN105140878B (en) * | 2015-08-26 | 2018-05-01 | 芜湖市凯鑫避雷器有限责任公司 | High voltage drop-out type fuse cutout overcurrent switching protection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103872658A (en) | Multifunctional self-recovery over-voltage and under-voltage protector | |
| CN101192751A (en) | Intelligent home electrical appliance and automatic power reclosing protection breaker | |
| CN108110728A (en) | Protection switch | |
| CN201523215U (en) | Electric appliance control energy-saving protection switch | |
| CN205646517U (en) | Construction site distribution box | |
| CN105261530B (en) | A kind of more strokes of breaker realize circuit and control method | |
| CN202524078U (en) | Arc suppression and overvoltage protection device controller | |
| CN203278688U (en) | Sine-wave inverter facilitating improvement of conversion efficiency and application performance | |
| CN203166469U (en) | Phase sequence protective relay | |
| CN101877476A (en) | Protector for preventing three-phase power circuit from generating high voltage | |
| CN201204570Y (en) | AC contactless control switch | |
| CN104418194A (en) | Elevator control cabinet | |
| CN2753010Y (en) | Power socket with overcurrent and short circuit protective device | |
| CN204314645U (en) | A kind of low-voltage distribution system by screen break-make automaton | |
| CN2899225Y (en) | Break zero-loss phase protecting distribution box | |
| CN203617501U (en) | Special touch control type high-power power supply system for kitchen | |
| CN201937247U (en) | Abnormal high-voltage protection circuit | |
| CN2515851Y (en) | Earth leakage protective device for coal mine underground | |
| CN201570789U (en) | Multifunctional low-tension integrated distribution box | |
| CN202473782U (en) | Molded case circuit breaker switch | |
| CN202026072U (en) | Low-voltage zero line breaking protection device | |
| CN201048275Y (en) | Household electrical appliance protector for preventing lighting strike and overvoltage | |
| CN201797303U (en) | Motor protection circuit | |
| CN106992498A (en) | A kind of protection device for car lifting J-Horner motor | |
| CN101931208A (en) | Leakage current detection protection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20110813 |