CN204835495U - Motor protection circuit structure - Google Patents
Motor protection circuit structure Download PDFInfo
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- CN204835495U CN204835495U CN201520576660.4U CN201520576660U CN204835495U CN 204835495 U CN204835495 U CN 204835495U CN 201520576660 U CN201520576660 U CN 201520576660U CN 204835495 U CN204835495 U CN 204835495U
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Abstract
The utility model provides a motor protection circuit structure, it includes singlechip U, and singlechip U's first pin is connected and ground connection with resistance R2 and inductance L respectively, and resistance R2's the other end is connected with diode D1's second pin anodal and singlechip U respectively, and back ground connection still is connected with resistance R1 and electric capacity C1 in proper order to diode D1's positive pole, inductance L's the other end is connected with zener diode D3's drain electrode anodal and field effect transistor Q1 respectively, and field effect transistor Q1's grid is connected with singlechip U's fourth pin, and field effect transistor Q1's source electrode is connected with singlechip U's the 5th pin and electric capacity C2's one end respectively, and electric capacity C2's the other end and diode D1's negative pole are connected. The utility model discloses a motor protection circuit structure not only possesses good safety protection effect, all has stable control and protection effect in the stage of opening, stop to the motor very much, and it still has better reliability and commonality moreover.
Description
Technical field
The utility model relates to a kind of circuit structure, and especially a kind of motor protecting circuit structure, belongs to electronic technology field.
Background technology
Motor is a kind of equipment electric energy being converted to mechanical energy, and it utilizes hot-wire coil (namely stator winding) to produce rotating magnetic field and act on rotor to form electro-magnetic motor force rotation torque.Motor is divided into DC motor and alternating current motor by use power supply difference, motor major part in electric power system is alternating current machine, can be synchronous machine or asynchronous machine (motor stator rotational speed of magnetic field and rotor rotary rpm do not keep synchronous speed).Motor forms primarily of stator and rotor, and the direction of electrified wire movement under force in magnetic field is relevant with magnetic induction line (magnetic direction) direction with the sense of current.Because the use of motor is very general, therefore the protection for motor just seems extremely important, for universal significance, the protection of motor is comprehensively protected to motor exactly, namely, when overload, phase shortage, stall, short circuit, overvoltage, under-voltage, electric leakage, three-phase imbalance, overheated, bearing wear, rotor bias appear in motor, reported to the police or protected; For motor provides the device of protection to be motor protecter, the existing motor protection equipment adopted at present mainly comprises thermal relay, electronic protector and intelligent protection etc., and they respectively have advantage, but the problem that ubiquity versatility is poor.
Utility model content
For above-mentioned deficiency of the prior art, main purpose of the present utility model is that solving existing current motor protection equipment exists the poor problem of versatility, and provides a kind of motor protecting circuit structure with better versatility.
The technical solution of the utility model: a kind of motor protecting circuit structure, it is characterized in that, comprise single-chip microcomputer U, the model of described single-chip microcomputer U is S8355, first pin of described single-chip microcomputer U is connected with one end of resistance R2 and one end of inductance L and ground connection respectively, the other end of described resistance R2 is connected with the positive pole of diode D1 and second pin of single-chip microcomputer U respectively, and the positive pole of described diode D1 is also connected rear ground connection successively with resistance R1 and electric capacity C1, the other end of described inductance L is connected with the positive pole of voltage stabilizing didoe D3 and the drain electrode of field effect transistor Q1 respectively, the grid of described field effect transistor Q1 is connected with the 4th pin of single-chip microcomputer U, the source electrode of described field effect transistor Q1 is connected with the 5th pin of single-chip microcomputer U and one end of electric capacity C2 respectively, the other end of described electric capacity C2 is connected with the negative pole of diode D1, and between the drain electrode and the source electrode of field effect transistor Q1 of described field effect transistor Q1, go back Opposite direction connection has diode D2, the negative pole of described voltage stabilizing didoe D3 respectively with one end of electric capacity C3, one end of resistance R3, one end of electric capacity C5, one end of electric capacity C6, the negative pole of voltage stabilizing didoe D5, one end of resistance R6, the negative pole of diode D4 is connected with the drain electrode of field effect transistor Q3, the other end of described electric capacity C3 respectively with the 3rd pin of single-chip microcomputer U, the other end of resistance R3 is connected with one end of resistance R4, after the other end of described resistance R4 is connected with electric capacity C4 more respectively with one end of resistance R5, the other end of electric capacity C6 is connected with the positive pole of voltage stabilizing didoe D5, the other end of described resistance R5 is connected with the other end of electric capacity C5, the positive pole of described diode D4 is connected with the source electrode of field effect transistor Q3 and power input Vin respectively, the grid of described field effect transistor Q3 is connected with the other end of resistance R6 and one end of resistance R7 respectively, the other end of described resistance R7 is connected with the drain electrode of field effect transistor Q2 and the negative pole of diode D7 respectively, the positive pole of described diode D7 respectively with the source electrode of field effect transistor Q2, one end of electric capacity C7, one end of resistance R9 is connected with the positive pole of diode D6, after the negative pole of described diode D6 is connected with resistance R8 more respectively with the other end of resistance R9, the other end of electric capacity C7 is connected with the grid of field effect transistor Q2.
Optimally, the model of described field effect transistor Q1 is 2SJ136, and the model of described field effect transistor Q2 is 2SK428, and the model of described field effect transistor Q3 is M75N06.
Optimally, the model of described voltage stabilizing didoe D3 is 1N4733, and the model of described voltage stabilizing didoe D5 is HZD5222B.
Optimally, the model of described inductance L is HSM0402F.
Relative to prior art, the utility model has following beneficial effect:
Motor protecting circuit structure of the present utility model adopts the combining structure of diode and switching circuit, not only can possess good safeguard protection effect in the process of machine operation, special in opening motor, stopping the stage all has stable control and protection effect, and it also has good reliability and versatility, different motor apparatus can be applicable to, the range of application of this protective circuit is so just made to expand greatly, thus be also conducive to the research and development and the manufacturing cost that reduce different model and brand motor, for vast electric machine manufacturer solves the problem of safety guarantee, also extraordinary control effects is had for holistic cost.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of a kind of motor protecting circuit structure of the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1; a kind of motor protecting circuit structure of the present utility model, comprises single-chip microcomputer U, and the model of described single-chip microcomputer U is S8355; first pin of described single-chip microcomputer U is connected with one end of resistance R2 and one end of inductance L and ground connection respectively, and the model of described inductance L is HSM0402F.The other end of described resistance R2 is connected with the positive pole of diode D1 and second pin of single-chip microcomputer U respectively, and the positive pole of described diode D1 is also connected rear ground connection successively with resistance R1 and electric capacity C1.The other end of described inductance L is connected with the positive pole of voltage stabilizing didoe D3 and the drain electrode of field effect transistor Q1 respectively, the model of described voltage stabilizing didoe D3 is 1N4733, the model of described field effect transistor Q1 is 2SJ136, the grid of described field effect transistor Q1 is connected with the 4th pin of single-chip microcomputer U, the source electrode of described field effect transistor Q1 is connected with the 5th pin of single-chip microcomputer U and one end of electric capacity C2 respectively, the other end of described electric capacity C2 is connected with the negative pole of diode D1, and between the drain electrode and the source electrode of field effect transistor Q1 of described field effect transistor Q1, go back Opposite direction connection has diode D2; The negative pole of described voltage stabilizing didoe D3 is connected with the drain electrode of field effect transistor Q3 with one end of electric capacity C3, one end of resistance R3, one end of electric capacity C5, one end of electric capacity C6, the negative pole of voltage stabilizing didoe D5, one end of resistance R6, the negative pole of diode D4 respectively, and the model of described field effect transistor Q3 is M75N06.The other end of described electric capacity C3 is connected with the 3rd pin of single-chip microcomputer U, the other end of resistance R3 and one end of resistance R4 respectively, be connected with the positive pole of one end of resistance R5, the other end of electric capacity C6 and voltage stabilizing didoe D5 respectively again after the other end of described resistance R4 is connected with electric capacity C4, the model of described voltage stabilizing didoe D5 is HZD5222B, and the other end of described resistance R5 is connected with the other end of electric capacity C5.The positive pole of described diode D4 is connected with the source electrode of field effect transistor Q3 and power input Vin respectively, the grid of described field effect transistor Q3 is connected with the other end of resistance R6 and one end of resistance R7 respectively, the other end of described resistance R7 is connected with the drain electrode of field effect transistor Q2 and the negative pole of diode D7 respectively, the positive pole of described diode D7 respectively with the source electrode of field effect transistor Q2, one end of electric capacity C7, one end of resistance R9 is connected with the positive pole of diode D6, after the negative pole of described diode D6 is connected with resistance R8 more respectively with the other end of resistance R9, the other end of electric capacity C7 is connected with the grid of field effect transistor Q2, the model of described field effect transistor Q2 is 2SK428.
Motor protecting circuit arrangement works good stability of the present utility model, and reliability is better, particularly has good versatility, can meet the demand of the equipment of different model, have good market prospects.
It should be noted that, above embodiment is only in order to illustrate technical solutions of the utility model but not restriction technologies scheme, although applicant is explained in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, those amendments that technical solutions of the utility model are carried out or equivalently to replace, aim and the scope of the technical program can not be departed from, all should be encompassed in the middle of the utility model right.
Claims (4)
1. a motor protecting circuit structure, it is characterized in that, comprise single-chip microcomputer U, the model of described single-chip microcomputer U is S8355, first pin of described single-chip microcomputer U is connected with one end of resistance R2 and one end of inductance L and ground connection respectively, the other end of described resistance R2 is connected with the positive pole of diode D1 and second pin of single-chip microcomputer U respectively, and the positive pole of described diode D1 is also connected rear ground connection successively with resistance R1 and electric capacity C1, the other end of described inductance L is connected with the positive pole of voltage stabilizing didoe D3 and the drain electrode of field effect transistor Q1 respectively, the grid of described field effect transistor Q1 is connected with the 4th pin of single-chip microcomputer U, the source electrode of described field effect transistor Q1 is connected with the 5th pin of single-chip microcomputer U and one end of electric capacity C2 respectively, the other end of described electric capacity C2 is connected with the negative pole of diode D1, and between the drain electrode and the source electrode of field effect transistor Q1 of described field effect transistor Q1, go back Opposite direction connection has diode D2, the negative pole of described voltage stabilizing didoe D3 respectively with one end of electric capacity C3, one end of resistance R3, one end of electric capacity C5, one end of electric capacity C6, the negative pole of voltage stabilizing didoe D5, one end of resistance R6, the negative pole of diode D4 is connected with the drain electrode of field effect transistor Q3, the other end of described electric capacity C3 respectively with the 3rd pin of single-chip microcomputer U, the other end of resistance R3 is connected with one end of resistance R4, after the other end of described resistance R4 is connected with electric capacity C4 more respectively with one end of resistance R5, the other end of electric capacity C6 is connected with the positive pole of voltage stabilizing didoe D5, the other end of described resistance R5 is connected with the other end of electric capacity C5, the positive pole of described diode D4 is connected with the source electrode of field effect transistor Q3 and power input Vin respectively, the grid of described field effect transistor Q3 is connected with the other end of resistance R6 and one end of resistance R7 respectively, the other end of described resistance R7 is connected with the drain electrode of field effect transistor Q2 and the negative pole of diode D7 respectively, the positive pole of described diode D7 respectively with the source electrode of field effect transistor Q2, one end of electric capacity C7, one end of resistance R9 is connected with the positive pole of diode D6, after the negative pole of described diode D6 is connected with resistance R8 more respectively with the other end of resistance R9, the other end of electric capacity C7 is connected with the grid of field effect transistor Q2.
2. a kind of motor protecting circuit structure according to claim 1, is characterized in that, the model of described field effect transistor Q1 is 2SJ136, and the model of described field effect transistor Q2 is 2SK428, and the model of described field effect transistor Q3 is M75N06.
3. a kind of motor protecting circuit structure according to claim 2, is characterized in that, the model of described voltage stabilizing didoe D3 is 1N4733, and the model of described voltage stabilizing didoe D5 is HZD5222B.
4. a kind of motor protecting circuit structure according to claim 3, is characterized in that, the model of described inductance L is HSM0402F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520576660.4U CN204835495U (en) | 2015-07-27 | 2015-07-27 | Motor protection circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520576660.4U CN204835495U (en) | 2015-07-27 | 2015-07-27 | Motor protection circuit structure |
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| CN204835495U true CN204835495U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520576660.4U Expired - Fee Related CN204835495U (en) | 2015-07-27 | 2015-07-27 | Motor protection circuit structure |
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| CN (1) | CN204835495U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108983884A (en) * | 2018-07-24 | 2018-12-11 | 合肥爱玩动漫有限公司 | A kind of cartoon design computer-assisted device |
-
2015
- 2015-07-27 CN CN201520576660.4U patent/CN204835495U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108983884A (en) * | 2018-07-24 | 2018-12-11 | 合肥爱玩动漫有限公司 | A kind of cartoon design computer-assisted device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20170727 |
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| CF01 | Termination of patent right due to non-payment of annual fee |