CN203733548U - Electromagnet control device - Google Patents
Electromagnet control device Download PDFInfo
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- CN203733548U CN203733548U CN201420086689.XU CN201420086689U CN203733548U CN 203733548 U CN203733548 U CN 203733548U CN 201420086689 U CN201420086689 U CN 201420086689U CN 203733548 U CN203733548 U CN 203733548U
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- 239000003990 capacitor Substances 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000004065 semiconductor Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model relates to an electromagnet control device and belongs to the technical field of control and protecting switch devices. The electromagnet control device comprises a rectifying circuit, a one-way circuit, a filter circuit, a power switching circuit, a microprocessor control circuit and an electromagnet circuit. The rectifying circuit is connected with an alternating-current power supply. The rectifying circuit is further respectively connected with the one-way circuit and the power switching circuit. The one-way circuit is respectively connected with the filter circuit and the electromagnet circuit. The microprocessor control circuit is respectively connected with the power switching circuit and the electromagnet circuit. The electromagnet control device has the advantages that power quality of electromagnets is optimized, ripple waves are reduced, coil heating value is reduced, ripper waves' influence on the microprocessor control circuit is reduced, break time of the electromagnets is shortened, operation frequency of the electromagnets is increased, and work efficiency of switch devices can be increased.
Description
Technical field
The utility model belongs to control and protective switching device technical field, is specifically related to a kind of electromagnet control device.
Background technology
Electromagnet control device is applicable to control all occasions of electromagnetic actuation and release, is the important annex circuit of control and protective switching device one in Low Voltage Electrical Apparatus.The power supply circuits of electromagnet control device provide power supply for electromagnet, corresponding control circuit electric after for controlling adhesive and the release of electromagnet, make thus control and protective switching device realize corresponding make-break operation.
At present, there is following problems in the power supply circuits of electromagnet control device: 1. the power supply circuits of most domestic electromagnet control device are that power frequency AC is changed into DC power supply through rectification in actual application, in described DC power supply, inevitably can there is a certain amount of alternating component, but most DC power supply is not carried out filtering processing, therefore, power quality is not good, ripple is large, especially the in the situation that of long-term energising, electromagnet coil easily generates heat, on the other hand, control circuit is subject to power supply ripple impact, causes and triggers extremely; 2. minority electromagnet control device has increased filtering processing to DC power supply, although can improve thus power quality, minimizing ripple, can cause again the problem that electromagnet break-time is long, frequency of operation reduces simultaneously, affects the operating efficiency of device for switching product.
In view of above-mentioned prior art, be necessary the structure of existing electromagnet control device to be improved, for this reason, the applicant has done useful design, and technical scheme described below produces under this background.
Summary of the invention
The purpose of this utility model is to provide a kind of electromagnet control device that can optimize power quality, minimizing ripple, the reduction coil heating amount of electromagnet and shorten electromagnet break-time.
The purpose of this utility model reaches like this, a kind of electromagnet control device, it is characterized in that: comprise rectification circuit, one-way circuit, filter circuit, power-switching circuit, micro-control and treatment circuit and solenoid circuit, described rectification circuit is connected with AC power, rectification circuit is connected with described one-way circuit and power-switching circuit respectively again, one-way circuit is connected with filter circuit and solenoid circuit respectively again, and described micro-control and treatment circuit is connected with power-switching circuit and solenoid circuit respectively.
In a specific embodiment of the present utility model, described electromagnet control device also comprises a signal sample circuit, and described signal sample circuit is connected with rectification circuit and micro-control and treatment circuit respectively.
In another specific embodiment of the present utility model, described rectification circuit is made up of rectifier bridge or discrete diode.
In another specific embodiment of the present utility model, described one-way circuit is constituted by a diode.
In another specific embodiment of the present utility model, described filter circuit is made up of electrochemical capacitor.
Also have in a specific embodiment of the present utility model, described power-switching circuit is made up of power transfer module.
More of the present utility model and in a specific embodiment, described signal sample circuit comprises the first resistance R 1, the second resistance R 2 and the 3rd resistance R 3, one end of the first described resistance R 1 connects rectification circuit, the other end of the first resistance R 1 is connected with one end of the second resistance R 2 and one end of the 3rd resistance R 3, the other end ground connection of the second resistance R 2, the other end of the 3rd resistance R 3 connects micro-control and treatment circuit.
The utility model has been owing to having adopted said structure, compared with prior art, the beneficial effect having: optimized electromagnet power quality, reduced ripple, can reduce thus coil heating amount, and reduce the interference of ripple to micro-control and treatment circuit; Meanwhile, shorten the break-time of electromagnet, promoted its frequency of operation, can improve thus the operating efficiency of device for switching product.
Brief description of the drawings
Fig. 1 is the theory diagram of an embodiment of the present utility model.
Fig. 2 is the theory diagram of another embodiment of the present utility model.
Fig. 3 is the circuit theory diagrams of an embodiment of the present utility model.
Fig. 4 is the circuit theory diagrams of another embodiment of the present utility model.
Embodiment
In order to make the public can fully understand technical spirit of the present utility model and beneficial effect; applicant will describe in detail embodiment of the present utility model below by reference to the accompanying drawings; but applicant is not the restriction to technical scheme to the description of embodiment, anyly changes in the form rather than substance and all should be considered as protection range of the present utility model according to the utility model design.
Embodiment 1:
Refer to Fig. 1 and Fig. 3, a kind of electromagnet control device, comprises rectification circuit, one-way circuit, filter circuit, power-switching circuit, micro-control and treatment circuit and solenoid circuit.Described rectification circuit is connected with AC power, and AC power is carried out to rectification.Rectification circuit is connected with described one-way circuit and power-switching circuit respectively again, and one-way circuit is connected with filter circuit and solenoid circuit respectively again, and described micro-control and treatment circuit is connected with power-switching circuit and solenoid circuit respectively.Described rectification circuit is made up of rectifier bridge or discrete diode; Described one-way circuit is constituted by a diode; Described filter circuit is made up of electrochemical capacitor; Described power-switching circuit is made up of power transfer module.In the present embodiment, described electromagnet control device comprises rectifier bridge B1, the first diode D1, electrochemical capacitor E1, power transfer module U1, microprocessor IC1, metal-oxide-semiconductor Q1, the second diode D2 and electromagnet coil L, described element is conventional device, do not limit concrete model herein, wherein, rectifier bridge B1 forms rectification circuit, the first diode D1 forms one-way circuit, electrochemical capacitor E1 forms filter circuit, power transfer module U1 forms power-switching circuit, microprocessor IC1 forms micro-control and treatment circuit, metal-oxide-semiconductor Q1, the second diode D2 and electromagnet coil L form solenoid circuit.Particularly, two ac input ends of described rectifier bridge B1 connect AC power, the positive direct-current output of rectifier bridge B1 is connected with positive pole (illustrated A end) and the input of power transfer module U1 of the first diode D1 respectively, the negative pole (illustrated K end) of the first diode D1 is connected with the positive pole of electrochemical capacitor E1 and the drain electrode of metal-oxide-semiconductor Q1, the English full name of PWM(of the grid of metal-oxide-semiconductor Q1 and microprocessor IC1: Pulse Width Modulation, Chinese: pulse width modulation) signal output part connection, the source electrode of metal-oxide-semiconductor Q1 is connected with the negative pole of the second diode D2 and one end of electromagnet coil L respectively, the negative DC output end of rectifier bridge B1, the negative pole of electrochemical capacitor E1, the positive pole of the second diode D2, the other end of electromagnet coil L, the earth terminal of power transfer module U1, the earth terminal common ground of microprocessor IC1, the output of power transfer module U1 connects the power input of microprocessor IC1.
Please continue to refer to Fig. 1 and Fig. 3, external ac power source becomes DC power supply by rectifier bridge B1, described DC power supply is divided into two-way: first via DC power supply is supplied with electrochemical capacitor E1 through the first diode D1Hou mono-road, for the charging energy-storing of electrochemical capacitor E1, solenoid circuit is supplied with on another road, as the working power of electromagnet coil L; The second tunnel DC power supply converts low-voltage dc power supply VCC to by power transfer module U1, and to microprocessor, IC1 powers.Microprocessor IC1 sends the pwm signal of default fixed pulse width, and driven MOS pipe Q1 conducting, in order to the electric current in regulating magnet coil L.The effect of electrochemical capacitor E1 is that the working power of electromagnet coil L is carried out to filtering, and when power supply is during near zero-crossing point, electrochemical capacitor E1 provides energy, ripple capable of reducing power source thus for electromagnet coil L.The effect of the first diode D1 is in the time of AC power power-off, prevents from causing microprocessor IC1 and solenoid circuit to work on because of the stored electric energy of electrochemical capacitor E1 to power transfer module U1 continued power.If solenoid circuit works on, electromagnet will still keep original attracting state, until exhausting, the upper electric energy storing of electrochemical capacitor E1 just can make all circuit quit work, now electromagnet ability disjunction, this process extends the break-time of electromagnet, has increased the caloric value of electromagnet coil L.The second diode D2 plays afterflow effect.
Embodiment 2:
Refer to Fig. 2 and Fig. 4, a kind of electromagnet control device, comprises rectification circuit, one-way circuit, filter circuit, power-switching circuit, micro-control and treatment circuit and solenoid circuit, in the present embodiment, also comprises a signal sample circuit.Described rectification circuit is connected with AC power, and AC power is carried out to rectification.Rectification circuit is connected with described one-way circuit, power-switching circuit and signal sample circuit respectively again, one-way circuit is connected with filter circuit and solenoid circuit respectively again, and described micro-control and treatment circuit is connected with power-switching circuit, solenoid circuit and signal sample circuit respectively.With embodiment 1, described rectification circuit is made up of rectifier bridge B1, described one-way circuit is made up of the first diode D1, described filter circuit is made up of electrochemical capacitor E1, described power-switching circuit is made up of power transfer module U1, described micro-control and treatment circuit is made up of microprocessor IC1, and described solenoid circuit is made up of metal-oxide-semiconductor Q1, the second diode D2 and electromagnet coil L.Described signal sample circuit comprises the first resistance R 1, the second resistance R 2 and the 3rd resistance R 3, the input of one end of the first described resistance R 1 and the positive pole of the first diode D1 and power transfer module U1 is connected to the positive direct-current output of rectifier bridge B1 jointly, the other end of the first resistance R 1 is connected with one end of the second resistance R 2 and one end of the 3rd resistance R 3, the other end ground connection of the second resistance R 2, the other end of the 3rd resistance R 3 is connected with the signal input part of microprocessor IC1.Other annexations are with embodiment 1.
Please continue to refer to Fig. 2 and Fig. 4, external ac power source becomes DC power supply by rectifier bridge B1, and in the present embodiment, described DC power supply is divided into three tunnels: first via DC power supply is sent into one-way circuit, the second tunnel DC power supply is sent into power-switching circuit, concrete identical with embodiment 1; Third Road DC power supply is sent into signal sample circuit, described signal sample circuit is sent into micro-control and treatment circuit after gathering analog voltage signal, the microprocessor IC1 of micro-control and treatment circuit sends the pwm signal of corresponding pulsewidth, the metal-oxide-semiconductor Q1 conducting of drive magnet circuit according to the difference of the analog voltage signal gathering
,electric current in regulating magnet coil L.All the other operation principles, all with embodiment 1, are omitted and are repeated herein.
Claims (7)
1.
a kind of electromagnet control device, it is characterized in that: comprise rectification circuit, one-way circuit, filter circuit, power-switching circuit, micro-control and treatment circuit and solenoid circuit, described rectification circuit is connected with AC power, rectification circuit is connected with described one-way circuit and power-switching circuit respectively again, one-way circuit is connected with filter circuit and solenoid circuit respectively again, and described micro-control and treatment circuit is connected with power-switching circuit and solenoid circuit respectively.
2.
electromagnet control device according to claim 1, is characterized in that described electromagnet control device also comprises a signal sample circuit, and described signal sample circuit is connected with rectification circuit and micro-control and treatment circuit respectively.
3.
electromagnet control device according to claim 1, is characterized in that described rectification circuit is made up of rectifier bridge or discrete diode.
4.
electromagnet control device according to claim 1, is characterized in that described one-way circuit is constituted by a diode.
5.
electromagnet control device according to claim 1, is characterized in that described filter circuit is made up of electrochemical capacitor.
6.
electromagnet control device according to claim 1, is characterized in that described power-switching circuit is made up of power transfer module.
7.
electromagnet control device according to claim 2, it is characterized in that described signal sample circuit comprises the first resistance R 1, the second resistance R 2 and the 3rd resistance R 3, one end of the first described resistance R 1 connects rectification circuit, the other end of the first resistance R 1 is connected with one end of the second resistance R 2 and one end of the 3rd resistance R 3, the other end ground connection of the second resistance R 2, the other end of the 3rd resistance R 3 connects micro-control and treatment circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420086689.XU CN203733548U (en) | 2014-02-28 | 2014-02-28 | Electromagnet control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420086689.XU CN203733548U (en) | 2014-02-28 | 2014-02-28 | Electromagnet control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203733548U true CN203733548U (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420086689.XU Expired - Lifetime CN203733548U (en) | 2014-02-28 | 2014-02-28 | Electromagnet control device |
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| CN (1) | CN203733548U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601428A (en) * | 2016-11-23 | 2017-04-26 | 浙江众邦机电科技有限公司 | High-voltage control system of sewing machine |
-
2014
- 2014-02-28 CN CN201420086689.XU patent/CN203733548U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601428A (en) * | 2016-11-23 | 2017-04-26 | 浙江众邦机电科技有限公司 | High-voltage control system of sewing machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |
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| CX01 | Expiry of patent term |