CN2789921Y - Energy-saving and material-saving environment protection AC contactor - Google Patents
Energy-saving and material-saving environment protection AC contactor Download PDFInfo
- Publication number
- CN2789921Y CN2789921Y CN 200420150529 CN200420150529U CN2789921Y CN 2789921 Y CN2789921 Y CN 2789921Y CN 200420150529 CN200420150529 CN 200420150529 CN 200420150529 U CN200420150529 U CN 200420150529U CN 2789921 Y CN2789921 Y CN 2789921Y
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- contactor
- saving
- soft iron
- friendly
- energy
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Abstract
The utility model relates to an energy-saving and material-saving environmental-protection AC contactor which comprises a contact part, an electromagnetic system composed of a neodymium-iron-boron permanent magnet, a movable soft iron core and a fixed soft iron core, and a coil set arranged on the fixed soft iron core. The utility model is characterized in that the energy-saving and material-saving environmental-protection AC contactor adopts a half-wave rectification circuit connected with a switching button and the coil set connected to the output end of the rectification circuit through a protective circuit, the electromagnetic system is used for controlling the contact part to work so that the utility model realizes that coils are instantly energized when the button is pressed down, and the energy saving effect can reach more than 99.9 percent; due to the adoption of the neodymium-iron-boron permanent magnet, the soft iron cores with low cost and little coil materials, the utility model can save a silicon steel sheet and a copper wire which have high cost so that the integral cost is about 1/4-1/3 lower than the ordinary AC contactor; because a circuit doesn't need wearing parts, such as controlled silicon, electrolyzing capacitors, etc., the utility model has the advantages of high reliability and long service life; the utility model can compatible with all functionals and the installing structure of the existing AC contactor and has the advantages of small size, light weight, long service life and higher reliability.
Description
Technical field
The utility model relates to A.C. contactor, is specifically related to the noiseless A.C. contactor that a kind of real zero-power is kept work.
Background technology
The A.C. contactor of existing various series, because what it adopted is the structure that E type or U type silicon sheet core power up magnetic zygonema circle, thereby as long as A.C. contactor work, the electromagnetism pull-in winding just has electric current to pass through, it must consume certain electric energy, and along with the difference of the big low capacity of A.C. contactor, several hectowatts (VA) are arrived in its pull-in winding power consumption watt (VA) from little to several greatly, so just there is the electric energy of hundreds of hundred million degree (during KVA/) every year in the whole nation by invisible slatterning, and the silicon steel sheet of consume expensive and more copper wires, and can produce AC noise and power frequency electromagnetic pollution, and, increase greenhouse effect to environmental emission used heat.Simultaneously, produce the life-span weak point, change frequent.Make moderate progress though at present invent and obtain the magnetic latching contactor of various patents, still have and keep the long-term power consumption of electric current on a small quantity, can't accomplish zero-power work at the defective of above-mentioned existence; Or because circuit is numerous and diverse and adopt the thyristor of rapid wear to reach the easily withered electrochemical capacitor that lost efficacy as main element, and can not reliably working steady in a long-term.
The utility model content
The technical problems to be solved in the utility model is the shortcoming that how to overcome above-mentioned prior art, and the mechanism that provides a kind of permanent magnetic to keep guarantees when not touching the button the A.C. contactor of not power consumption fully.
The above-mentioned technical problem of the utility model solves like this; construct a kind of energy-saving material-saving environment-friendly AC contactor; comprise contact part; by Nd-Fe-B permanent magnet 1; the electromagnetic system that moving soft iron core 4 and quiet soft iron core 2 are formed; and be contained in coil groups 14 on the described quiet soft iron core 2; it is characterized in that; also comprise connect the alternating current loop by start button 11; the shift knob that stop button 12 is formed; the rectification circuit 13 that is connected with shift knob, the coil groups 14 of controlling the action of described contact part by electromagnetic system is connected the output of rectification circuit 13 by protective circuit 15.
In the energy-saving material-saving environment-friendly AC contactor that provides according to the utility model, described rectification circuit (13) comprises that two respectively have reverse high back-pressure diode (D1, D2) that connects of an end and the filtering capacitor (C) that is connected the anti-magnetic current-limiting resistance (R) between diode (D1, the D2) output and is connected the halfwave rectifier output.
In the energy-saving material-saving environment-friendly AC contactor that provides according to the utility model; described protective circuit 15 comprises the 3rd protection component (PT3) and two first and second protection components (PT1, PT2) that are connected in series in coil groups 14 two ends respectively that are connected across filtering output end; wherein; first protection component (PT1) is a thermistor; second protection component (PT2) is the field-discharge resistance of moment conducting, and the 3rd protection component (PT3) is a piezo-resistance.
In the energy-saving material-saving environment-friendly AC contactor that provides according to the utility model, described contact part comprises by insulated connecting piece 9 and is contained in the moving contact 5 on the moving soft iron core 4 and is located at movable contact 7 on the moving contact 5, also comprise the fixed contact 6 that fixedly installs and be contained in break 8 on the fixed contact 6, also comprise the tension force back-moving spring 10 on the moving soft iron heart 4.
In the energy-saving material-saving environment-friendly AC contactor that provides according to the utility model, described electromagnetic system comprises the quiet soft iron heart 2 of " I " type of a Nd-Fe-B permanent magnet 1 and two perpendicular separation settings simultaneously, and described coil groups 14 is wrapped on two quiet soft iron hearts 2 of " I " type respectively and forward is connected in series.
In the energy-saving material-saving environment-friendly AC contactor that provides according to the utility model, described electromagnetic system comprises the quiet soft iron heart 2 of " I " type of two Nd-Fe-B permanent magnets 1 and three perpendicular separation settings simultaneously, and described coil groups 14 is wrapped on the quiet soft iron heart 2 of " I " type in centre position.
In the energy-saving material-saving environment-friendly AC contactor that provides according to the utility model, the sound contact cross bonding of described start button 11 and stop button 12.
Implement the energy-saving material-saving environment-friendly AC contactor that the utility model provides, have the following advantages: 1) because A.C. contactor electromagnet coil of the present utility model is only pressed moment direct current energising at button, energy-saving effect reaches more than 99.9%; 2) adopt Nd-Fe-B permanent magnet, soft iron core and less coil method cheaply, silicon steel sheet that escapable cost is high and copper wires make overall cost than common A.C. contactor about 1/4---1/3 that descends; 3) adopted very simple and reliable half-wave rectifying circuit, consumable accessorys such as no controllable silicon, electrochemical capacitor make reliability of products and life-span improve greatly; Simultaneously most of structural member adopts the general part that is easy to purchase on the market, has reduced production cost, has shortened the production cycle, helps large-scale production; 4) repertoire and mounting structure that can compatible existing A.C. contactor, volume is littler, and weight is lighter, longer service life, reliability is higher.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model energy-saving material-saving environment-friendly AC contactor;
Fig. 2 is the structural representation of the utility model energy-saving material-saving environment-friendly AC contactor first embodiment;
Fig. 3 is the structural representation of the utility model energy-saving material-saving environment-friendly AC contactor second embodiment;
Embodiment
Each label among Fig. 1-Fig. 3 is unitedly described as follows: the 1st, Nd-Fe-B permanent magnet, the 2nd, quiet soft iron core, the 3rd, coil; the 4th, moving soft iron core, the 5th, moving contact, the 6th, fixed contact; the 7th, movable contact, the 8th, break, the 9th, insulated connecting piece; the 10th, tension force back-moving spring, the 11st, start button, the 12nd, stop button; the 13rd, rectification circuit, the 14th, coil groups, the 15th, protective circuit; the 16th, permanent magnet magnetic line of force direction and coil adhesive magnetic line of force direction, the 17th, coil discharges magnetic force (anti-magnetic) line direction.
Energy-saving material-saving environment-friendly AC contactor of the present utility model is divided into circuit control section and electromagnetism action operating part.Wherein, the circuit of circuit control section such as Fig. 1, electromagnetism action operating part has two kinds of execution modes, respectively as Fig. 2, shown in Figure 3.The circuit control section of Fig. 1 can be respectively and Fig. 2,3 the integrated formation of electromagnetism action operating part.
As Fig. 1, the function of circuit control section is when pressing start button 11 with stop button 12, is added on that the polarity of voltage on the solenoid 14 changes in the electromagnetism action operating part, and wherein, D1, D2 are high back-pressure diode, constitute the halfwave rectifier loop; Be connected on the non-polar condenser C of half-wave output among Fig. 1, be used for filtering is carried out in halfwave rectifier output, and be connected on the anti-magnetic current-limiting resistance R on two diode outputs, be used to limit reverse current less than forward (when pressing start button) electric current.In the circuit diagram of Fig. 1, first, second and third protection component PT1, PT2 and PT3 constitute protective circuit 15, wherein, the first protection component PT1 is responsive protective resistance, PT1 is a thermistor herein, and the second protection component PT2 is that field-discharge resistance, the 3rd protection component PT3 of moment conducting is piezo-resistance; Start button 11 respectively has one group of movable contact and break respectively with stop button 12, therebetween, and the cross bonding of sound contact; Solenoid group 14 (L) as contactor actuator is to be connected on the output of half-wave rectifying circuit 13 by protective circuit 15.
Electromagnetism action operating part of the present utility model can have two kinds of execution modes, respectively as shown in Figures 2 and 3.Electromagnetism action function executing part is when finishing the start and stop button and pressing, and makes the adhesive and the release of probe of contactor.In conjunction with Fig. 1, further specify its operation principle.
1. " leading to " button of pressing start button sends starting command on earth, and electric current flows through " leading to " button movable contact → " breaking " button break → D1 → PT1 → L → PT2, finishes forward halfwave rectifier loop.On the solenoid 3 voltage be " a " just " b " negative.
2. press stop button and " break " button on earth, send and cease and desist order, electric current flows through " breaking " button movable contact → " leading to " button break → D2 → R → PT1 → L → PT2 finishes negative sense halfwave rectifier loop, and voltage is that " a " just bearing " b " on the solenoid 3.
3. non-polar condenser C plays the bidirectional filtering effect, the AC hum that can prevent " leading to ", produce when " breaking " button is pressed artificially for a long time, and can improve coil power and carry out efficient.The self-induction high pressure that capacitor C produces when also the absorbable thread circle cuts off the power supply.
4. PT1 is that the thermistor of positive temperature coefficient is embedded in coil inside, and when temperature raise to set point, PT1 was high-impedance state, significantly reduces the loop works electric current.Purpose is to prevent that the solenoid temperature that contingency causes from raising, with the protection coil.
5. PT2 is field-discharge resistance commonly used, and its function is only to be the Low ESR conducting state in energising moment, is the high resistant open-circuit condition then, its objective is to prevent that artificial pressing for a long time from " leading to " or during " breaking " button, coil has electric current to flow through and wastes electric energy.The duplicate protection of PT1 and PT2 formation coil L is also energy-conservation.
6. PT3 is pressure-sensitive protective resistance commonly used, the self-induction high voltage that produces in the time of can preventing to be struck by lightning with surge overvoltage voltage and absorbing coil outage.
7. " lead to " and the cross bonding of " breaking " button sound contact, purpose is when preventing to press simultaneously artificially " leading to " and " breaking " button (no matter gently or heavily pressing on earth), this control circuit all can't constitute the current flowing loop, thereby prevents the electromagnetism operating part work of by mistake beating up and down.
Provide energy-saving material-saving environment-friendly AC contactor according to the utility model, the magnetic latching contactor of not power consumption during with the simplest circuit and minimum element formation work, so that large-scale production, its principle is tension force back-moving spring (angle) power on the suction-combining force of permanent magnet and the moving magnet, reaches the purpose of adhesive and release.From specific embodiment, as long as adopt one group of coil, two diodes, a polarity free capacitor, a resistance, coil adds forward voltage (a just during work, b is negative) to strengthen permanent magnet magnetic force, make its stack magnetic force greater than tension force back-moving spring tension force, keep attracting state by permanent magnet after the adhesive, reach the adhesive purpose; Add reverse voltage (a is negative, and b just) when stopping, producing reverse magnetic force, it is made a concerted effort less than the tension force of tension force back-moving spring, thereby reach the purpose of release to offset most of permanent magnet magnetic force.The characteristics of this principle are simple and reliable, have abandoned consumable accessorys such as controllable silicon, electrochemical capacitor, and functional reliability is high, have only adhesive during work and discharge moment trace power consumption.In addition, owing to adopt neodymium-iron-boron permanent magnet and common soft iron core, significantly reduce core volume and winding volume, finally reach the purpose of saving copper material and silicon steel sheet, reduce whole cost, cost descends about about 1/3-1/4 than common A.C. contactor in the market, and weight and volume also reduce greatly.At last, owing to be provided with overtemperature (PT1 thermistor) and overcurrent is protected (PT2 field-discharge resistance) automatically, PT2 also can prevent that button is malfunctioning or artificially press the button for a long time when not putting that coil is switched on for a long time.Adopt field-discharge resistance can make coil only power up the moment conducting.Owing to be provided with overvoltage lightning protection device (PT3 piezo-resistance), security reliability increased.In addition, the start and stop circuit adopts the chain mutual guarantor of button (as shown), preventing that button circuit is in off-state all the time when the start and stop button while is pressed artificially, in order to avoid cause the contactor work of beating up and down by mistake.
Claims (9)
1. energy-saving material-saving environment-friendly AC contactor; comprise contact part; by Nd-Fe-B permanent magnet (1); the electromagnetic system that moving soft iron core (4) and quiet soft iron core (2) are formed; and be contained in coil groups (14) on the described quiet soft iron core (2); it is characterized in that; also comprise the shift knob of forming by start button (11) and stop button (12) that connects the alternating current loop; with shift knob (11; 12) rectification circuit of Lian Jieing (13); and control the coil groups (14) of described contact part action by electromagnetic system, described coil groups (14) is connected the output of rectification circuit (13) by protective circuit (15).
2. according to the described energy-saving material-saving environment-friendly AC contactor of claim 1, it is characterized in that the filtering capacitor (C) that described rectification circuit (13) comprises two high back-pressure diodes (D1, D2) and is connected the anti-magnetic current-limiting resistance (R) between diode (D1, the D2) output and is connected the halfwave rectifier output.
3. according to the described energy-saving material-saving environment-friendly AC contactor of claim 1; it is characterized in that described protective circuit (15) comprises the 3rd protection component (PT3) and two first and second protection components (PT1, PT2) that are connected in series in coil groups (14) two ends respectively that are connected across filtering output end.
4. according to the described energy-saving material-saving environment-friendly AC contactor of claim 2; it is characterized in that described protective circuit (15) comprises PTC element (PT3) and two the PTC elements (PT1, PT2) that are connected in series in coil groups (14) two ends respectively that are connected across filtering output end.
5. according to any one described energy-saving material-saving environment-friendly AC contactor among the claim 1-4, it is characterized in that, described contact part comprises by insulated connecting piece (9) and is contained in the moving contact (5) on the moving soft iron core (4) and is located at movable contact (7) on the moving contact (5), also comprise the fixed contact (6) that fixedly installs and be contained in break (8) on the fixed contact (6), also comprise the tension force back-moving spring (10) on the moving soft iron heart (4).
6. according to any one described energy-saving material-saving environment-friendly AC contactor among the claim 1-4, it is characterized in that, described electromagnetic system comprises a Nd-Fe-B permanent magnet (1) and goes up two quiet soft iron hearts of " I " type (2) of setting at interval perpendicular to Nd-Fe-B permanent magnet (1), described coil groups (14) is wrapped in respectively on two quiet soft iron hearts of " I " type (2), and forward is connected in series.
7. according to any one described energy-saving material-saving environment-friendly AC contactor among the claim 1-4, it is characterized in that, described electromagnetic system comprises the quiet soft iron heart of " I " type (2) of two Nd-Fe-B permanent magnets (1) and three perpendicular separation settings simultaneously, and described coil groups (14) is wrapped on the quiet soft iron heart of " I " type (2) in centre position.
8. according to any one described energy-saving material-saving environment-friendly AC contactor among the claim 1-4, it is characterized in that the sound contact cross bonding of described start button (11) and stop button (12).
9. according to the described energy-saving material-saving environment-friendly AC contactor of claim 4; it is characterized in that; described first protection component (PT1) is a thermistor, and described second protection component (PT2) is the field-discharge resistance of moment conducting, and described the 3rd protection component (PT3) is a piezo-resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420150529 CN2789921Y (en) | 2004-09-29 | 2004-09-29 | Energy-saving and material-saving environment protection AC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420150529 CN2789921Y (en) | 2004-09-29 | 2004-09-29 | Energy-saving and material-saving environment protection AC contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2789921Y true CN2789921Y (en) | 2006-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420150529 Expired - Lifetime CN2789921Y (en) | 2004-09-29 | 2004-09-29 | Energy-saving and material-saving environment protection AC contactor |
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| Country | Link |
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| CN (1) | CN2789921Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007028321A1 (en) * | 2005-09-09 | 2007-03-15 | Jinping Liu | Low-power numerically controlled contactor and control system made of the contactors |
| CN100416736C (en) * | 2004-09-29 | 2008-09-03 | 王湘 | Energy-saving material-saving environment-friendly AC contactor |
| CN109298696A (en) * | 2018-10-26 | 2019-02-01 | 江苏永钢集团有限公司 | Single button list opens the control device singly stopped and control method |
-
2004
- 2004-09-29 CN CN 200420150529 patent/CN2789921Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416736C (en) * | 2004-09-29 | 2008-09-03 | 王湘 | Energy-saving material-saving environment-friendly AC contactor |
| WO2007028321A1 (en) * | 2005-09-09 | 2007-03-15 | Jinping Liu | Low-power numerically controlled contactor and control system made of the contactors |
| US8093969B2 (en) | 2005-09-09 | 2012-01-10 | Jinping Liu | Low-power numerically controlled contactor and control system made of the contactors |
| CN109298696A (en) * | 2018-10-26 | 2019-02-01 | 江苏永钢集团有限公司 | Single button list opens the control device singly stopped and control method |
| CN109298696B (en) * | 2018-10-26 | 2021-05-14 | 江苏永钢集团有限公司 | Control device and control method for single button, single start and single stop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080903 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |