CN205566104U - Driving motor power supply circuit - Google Patents
Driving motor power supply circuit Download PDFInfo
- Publication number
- CN205566104U CN205566104U CN201620303009.4U CN201620303009U CN205566104U CN 205566104 U CN205566104 U CN 205566104U CN 201620303009 U CN201620303009 U CN 201620303009U CN 205566104 U CN205566104 U CN 205566104U
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- circuit
- protection circuit
- switch contact
- motor power
- driving motor
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Abstract
The utility model discloses a driving motor power supply circuit, aim at providing one kind can the protection can be realized again to effective protective power supply under the rotational speed circumstances of exceeding standard under the temperature exceeds standard driving motor power supply circuit, solved the untimely problem of trouble circumstances protection, its technical scheme main points be including the input interface, connect input port rectifier module, connect rectifier module's the control unit and transformer unit, transformer unit is connected with a plurality of voltage output unit, and the last temperature sensor that still is provided with of transformer unit, temperature sensor are connected with the protection circuit, and the protection circuit has normal close switch contact, and normal close switch contact establishes ties on the input interface and receives protection circuit control, wherein, and disconnection normal close switch contact when protection circuit detection temperature sensor's signal exceedes the default, the protection circuit still is connected with speed sensor, wherein, and disconnection normal close switch contact when protection circuit detection speed sensor's signal exceedes the default.
Description
Technical field
This utility model relates to power circuit technical field, particularly to the power circuit driving motor.
Background technology
Power circuit refers to be supplied to the circuit design of the power pack of electrical equipment supply of electric power.Common power circuit has AC power circuit, DC power supply circuit etc..nullFor the drive part of direct current generator，It mainly uses DC source，And using the power supply the most frequently and easily got is civil power 220V alternating current power supply，Some factory power supply systems use for 380V alternating current，The most universal mains supply single-phase 220V/50Hz alternating current is used so arranging to be usually for power circuit，But for driving the power supply of motor to arrange this not composite demand，And，Existing driving motor power circuit uses Switching Power Supply to be powered，By alternating current to export after being converted to unidirectional current，The problem that thus can solve power taking，But it is useful on driving motor and there is also safety problem，Easily cause electronic failure under overheat condition and burn，For cannot effectively protect power circuit in the rotating speed control of motor，The when of motor driving time (i.e. electrical fault rotating speed exceedes normal value)，Power supply can be played the effect of destruction，Power circuit cannot be prevented effectively from the case of driving electrical fault, make protection in time.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is to provide the driving motor power circuit that can effectively protect power supply can realize again protection in the case of rotating speed exceeds standard under temperature exceeding standard.
Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of driving motor power circuit, including input interface, connect the rectification module of input port, connect control unit and the transformer unit of rectification module, described transformer unit connects multiple voltage output unit, it is additionally provided with temperature sensor on described transformer unit, temperature sensor connects protected circuit, described protection circuit has normally closed switch contact, described normally closed switch contact series is on input interface and protected circuit controls, wherein, the signal of protection circuit detection temperature sensor disconnects normally closed switch contact when exceeding preset value；Described protection circuit is also associated with speed probe, and wherein, the signal of protection circuit detection speed probe disconnects normally closed switch contact when exceeding preset value.
nullBy above-mentioned setting，Input interface can connect mains supply 220V，Carry out rectification by rectification module simultaneously，Alternating current is converted to unidirectional current，On the other hand carry out power supply is adjusted by control unit and transformer unit，And export，Electric power output is carried out by multiple voltage output unit，Due in work process，There is bigger temperature rise in transformator，Therefore detection and the collection of temperature can be carried out by temperature sensor，And temperature is too high when，Carry out this circuit carries out a protection by the protection circuit of energy design temperature threshold value，Mainly realize the cut-out to mains supply by normally closed switch contact，On the other hand，Owing to it is applied in the drive environment of motor，Need the rotating speed of motor is detected，And use this protection circuit to carry out a protection equally，While improving security performance，Improve service life.
Can be preferably as concrete scheme of the present utility model: described protection circuit includes the first comparing unit being connected with temperature sensor, the second comparing unit being connected with speed probe, is connected the first comparing unit and the OR-circuit of the second comparing unit, the switch element of connection OR-circuit outfan, and described switch element includes normally closed switch contact.
By above-mentioned setting, the multilevel iudge of signal of telecommunication size is carried out by the first comparing unit, and export, second comparing unit is also in like manner, then by a digital circuit, OR-circuit can carry out the logical process of signal, and the signal of two comparing unit outputs is carried out logical process, the output realizing either signal can make mains supply cut off, and is realized by normally closed switch contact.
Can be preferably as concrete scheme of the present utility model: described first comparing unit includes the first comparator and the first reference section, the first reference section connects the input of the first comparator provides reference signal；Described second comparing unit includes the second comparator and the second reference section, and the second reference section connects the input of the second comparator provides reference signal.
By above-mentioned setting, having this to understand, reference signal can effectively be regulated by the first reference section, and the second reference section is also in like manner, thus the benchmark set can be adjusted setting, and meets design requirement.
Can be preferably as concrete scheme of the present utility model: described switch element includes audion, relay, the base stage of described audion connects OR-circuit outfan, grounded emitter, the coil of collector connection relay, the other end of relay coil connects power supply.
By above-mentioned setting; the setting of switch element; the signal driving effect of linkage can be realized; by logic circuit OR-circuit; the signal that can this be exported drives triode ON; and then drive relay to carry out action, owing to normally closed switch contact can be controlled by the coil of relay, such that it is able to effectively realize the tripping protection of mains supply.
Can be preferably as concrete scheme of the present utility model: on the coil of described relay, be also parallel with buzzer.
By above-mentioned setting, being arranged on the when that relay working of buzzer can carry out sounding alarm, play the effect of warning.
Can be preferably as concrete scheme of the present utility model: on the wire loop of described relay, be also in series with illuminating lamp.
By above-mentioned setting, illuminating lamp can carry out an illumination to circuit, it is simple to attendant can carry out an effective maintenance, it is simple to maintenance.
In sum; this utility model has the advantages that the detection that can realize motor speed and circuit temperature, and carries out effective tripping protection, further can improve warning and lighting; improve the convenience used, and provide convenient for attendant.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the present embodiment one；
Fig. 2 is the circuit theory diagrams of protection circuit；
Fig. 3 is the switch element circuit theory diagrams of embodiment one；
Fig. 4 is the switch element circuit theory diagrams of embodiment two；
Fig. 5 is the switch element circuit theory diagrams of embodiment three.
In figure 1, input interface；2, control unit；3, transformer unit；DB1, rectification module；4, voltage output unit；A11, temperature sensor；A12, speed probe；A2, protection circuit；K1-1, normally closed switch contact；A21, the first comparing unit；A22, the second comparing unit；OR1, OR-circuit；LM1, the first comparator；A211, the first reference section；LM2, the second comparator；A221, the second reference section；Q1, audion；K, relay；LB, buzzer；LD, illuminating lamp.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
Embodiment 1: as Figure 1-3, a kind of driving motor power circuit, rectifier module D B1 including input interface 1, connecting input port, the control unit 2 connecting rectifier module D B1 and transformer unit 3, transformer unit 3 connects multiple voltage output unit 4.Input interface 1 sees Fig. 1, wherein, L1C and L2C connects mains supply, its interface is connected to normally closed switch contact K1-1, then input connects varistor XX1, can effectively prevent current voltage, and play the effect of leakage current, additionally terminals are arranged in a crossed manner, can effectively prevent the interference of common-mode signal.Rectifier module D B1 is the component module of a bridge rectifier connection, its circuit modularity, can use directly as rectification.The circuit topological structure of power supply uses reverse exciting topological structure, it is achieved the conversion of power supply.Transformation and the electric current adjustment of power supply is realized by transformer unit 3.Circuit employs more capacity cell and plays filter action, and, an output unit have employed three-terminal voltage-stabilizing chip one stable 5V voltage of output wherein.The voltage that voltage is Vcc, Vcc power supply of another output unit output is 3.3V.Temperature sensor A11 it is additionally provided with on transformer unit 3; temperature sensor A11 connects protected circuit A2; protection circuit A2 has normally closed switch contact K1-1; normally closed switch contact K1-1 is series on input interface 1 and protected circuit A2 controls; wherein, the signal of protection circuit A2 detection temperature sensor A11 disconnects normally closed switch contact K1-1 when exceeding preset value；Protection circuit A2 is also associated with speed probe A12, and wherein, the signal of protection circuit A2 detection speed probe A12 disconnects normally closed switch contact K1-1 when exceeding preset value.
As shown in Figure 2; protection circuit A2 includes the first comparing unit A21 being connected with temperature sensor A11, the second comparing unit A22 being connected with speed probe A12, is connected the first comparing unit A21 and the OR-circuit OR1 of the second comparing unit A22, the switch element of connection OR-circuit OR1 outfan, and switch element includes normally closed switch contact K1-1.First comparing unit A21 includes the first comparator LM1 and the first reference section A211, and the first reference section A211 connects the input of the first comparator LM1 provides reference signal；Second comparing unit A22 includes the second comparator LM2 and the second reference section A221, and the second reference section A221 connects the input of the second comparator LM2 provides reference signal.The resistor voltage divider circuit that first reference section A211 is resistance R2, potentiometer Rp1 connects into, the dividing potential drop size on potentiometer Rp1 of voltage vcc can be regulated by potentiometer Rp1, such that it is able to provide reference voltage V ref1, this reference voltage carries out one compare as a benchmark voltage, the signal exporting sensor.Second principle same for comparing unit A22.
As it is shown on figure 3, switch element includes audion Q1, relay K, the base stage of audion Q1 connects OR-circuit OR1 outfan, grounded emitter, the coil of collector connection relay K, and the other end of relay K coil connects power supply.
nullWork process: input interface 1 can connect mains supply 220V，Carry out rectification by rectifier module D B1 simultaneously，Alternating current is converted to unidirectional current，On the other hand carry out power supply is adjusted by control unit 2 and transformer unit 3，And export，Electric power output is carried out by multiple voltage output unit 4，Due in work process，There is bigger temperature rise in transformator，Therefore detection and the collection of temperature can be carried out by temperature sensor A11，And temperature is too high when，Carry out this circuit carries out a protection by protection circuit A2 of energy design temperature threshold value，Mainly realize the cut-out to mains supply by normally closed switch contact K1-1，On the other hand，Owing to it is applied in the drive environment of motor，Need the rotating speed of motor is detected，And use this protection circuit A2 to carry out a protection equally，While improving security performance，Improve service life.
Embodiment 2:(drives motor power circuit), including embodiment 1, as shown in Figure 4, the coil of relay K is also parallel with buzzer LB.
In work process, relay K action when, realize reporting to the police simultaneously.
Embodiment 3:(drives motor power circuit), it is with the difference of embodiment 2, as it is shown in figure 5, be also in series with illuminating lamp LD on the wire loop of relay K.This circuit is while reporting to the police, it is possible to achieve illumination.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
Claims (6)
- null1. one kind drives motor power circuit，Including input interface (1)、Connect the rectification module (DB1) of input port、Connect control unit (2) and the transformer unit (3) of rectification module (DB1)，Described transformer unit (3) connects multiple voltage output unit (4)，It is characterized in that: on described transformer unit (3), be additionally provided with temperature sensor (A11)，Temperature sensor (A11) connects protected circuit (A2)，Described protection circuit (A2) has normally closed switch contact (K1-1)，Described normally closed switch contact (K1-1) is series at input interface (1), and above and protected circuit (A2) controls，Wherein，The signal of protection circuit (A2) detection temperature sensor (A11) disconnects normally closed switch contact (K1-1) when exceeding preset value；Described protection circuit (A2) is also associated with speed probe (A12), and wherein, the signal of protection circuit (A2) detection speed probe (A12) disconnects normally closed switch contact (K1-1) when exceeding preset value.
- Driving motor power circuit the most according to claim 1; it is characterized in that: described protection circuit (A2) includes first comparing unit (A21) connected with temperature sensor (A11), second comparing unit (A22) connected with speed probe (A12), the OR-circuit (OR1) being connected the first comparing unit (A21) and the second comparing unit (A22), is connected the switch element of OR-circuit (OR1) outfan, and described switch element includes normally closed switch contact (K1-1).
- Driving motor power circuit the most according to claim 2, it is characterized in that: described first comparing unit (A21) includes the first comparator (LM1) and the first reference section (A211), the first reference section (A211) connects the input of the first comparator (LM1) provides reference signal；Described second comparing unit (A22) includes the second comparator (LM2) and the second reference section (A221), and the second reference section (A221) connects the input of the second comparator (LM2) provides reference signal.
- Driving motor power circuit the most according to claim 2, it is characterized in that: described switch element includes audion (Q1), relay (K), the base stage of described audion (Q1) connects OR-circuit (OR1) outfan, grounded emitter, the coil of collector connection relay (K), the other end of relay (K) coil connects power supply.
- Driving motor power circuit the most according to claim 4, it is characterised in that: also it is parallel with buzzer (LB) on the coil of described relay (K).
- Driving motor power circuit the most according to claim 5, it is characterised in that: also it is in series with illuminating lamp (LD) on the wire loop of described relay (K).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620303009.4U CN205566104U (en) | 2016-04-12 | 2016-04-12 | Driving motor power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620303009.4U CN205566104U (en) | 2016-04-12 | 2016-04-12 | Driving motor power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205566104U true CN205566104U (en) | 2016-09-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620303009.4U Expired - Fee Related CN205566104U (en) | 2016-04-12 | 2016-04-12 | Driving motor power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205566104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092595A (en) * | 2016-11-21 | 2018-05-29 | 德昌电机(深圳)有限公司 | Motor application equipment |
| CN110022076A (en) * | 2019-03-29 | 2019-07-16 | 合肥华耀电子工业有限公司 | A kind of rectification power circuit |
-
2016
- 2016-04-12 CN CN201620303009.4U patent/CN205566104U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092595A (en) * | 2016-11-21 | 2018-05-29 | 德昌电机(深圳)有限公司 | Motor application equipment |
| CN108092595B (en) * | 2016-11-21 | 2021-08-31 | 德昌电机(深圳)有限公司 | Motor application device |
| CN110022076A (en) * | 2019-03-29 | 2019-07-16 | 合肥华耀电子工业有限公司 | A kind of rectification power circuit |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 |