CN204013322U - A kind of electric motor intelligent electricity saver - Google Patents
A kind of electric motor intelligent electricity saver Download PDFInfo
- Publication number
- CN204013322U CN204013322U CN201420464479.XU CN201420464479U CN204013322U CN 204013322 U CN204013322 U CN 204013322U CN 201420464479 U CN201420464479 U CN 201420464479U CN 204013322 U CN204013322 U CN 204013322U
- Authority
- CN
- China
- Prior art keywords
- pin
- field effect
- effect transistor
- diode
- utmost point
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Inverter Devices (AREA)
Abstract
The utility model discloses a kind of electric motor intelligent electricity saver, comprise direct current regulation circuit, pulse-width modulation circuit, half-bridge drive circuit and high-frequency isolation transforming circuit, described direct current regulation circuit comprises transformer T1, bridge rectifier, filter capacitor C1, current-limiting resistance R2 and voltage stabilizing didoe D5; Described pulse-width modulation circuit comprises chip TL494CN, and the pin 8 of described chip TL494CN is connected with the positive pole of described voltage stabilizing didoe D5, and the pin 9 of described chip TL494CN and pin 10 are for driving signal output part; Described half-bridge drive circuit comprises field effect transistor Q1 and field effect transistor Q2, the G utmost point of described field effect transistor Q1 is connected with the pin 9 of described chip TL494CN, the G utmost point of described field effect transistor Q2 is connected with the pin 10 of described chip TL494CN, and the D utmost point of described field effect transistor Q1 is connected with the input of described high-frequency isolation transforming circuit respectively with the D utmost point of described field effect transistor Q2.
Description
Technical field
The utility model relates to a kind of electricity-saving appliance, and in particular, the utility model relates to a kind of electric motor intelligent electricity saver.
Background technology
Electric motor saver is the load factor size according to motor, do not changing on the basis of motor rated speed, adjust at any time power input to a machine, ensure motor stable operation under optimum load rate, reduce copper loss, iron loss, stray loss and the supplementary load loss of motor, when making electrical machinery life obtain extending, also increase substantially the operational efficiency of motor, thereby reached the object of economize on electricity.The domestic motor lower phenomenon of ubiquity operational efficiency compared with developed countries at present, this is because consider the factors such as voltage ripple of power network, apparatus overload, mechanical wear, makes generally all can leave 30% power surplus in the time selecting motor apparatus.And these equipment reach the little of its rated designs in actual moving process, thereby cause the wasting phenomenon of " low load with strong power ".This phenomenon is very general, looks like especially the various process equipments such as oil pumper, disintegrating machine, injection molding machine, bench, roots blower, makita 4100NH, air compressor machine, electric saw, elevator, hoisting equipment, car, plane, brill, milling etc.These equipment often load factor are lower, and operational efficiency is lower, and waste of energy is very surprising.In this case, use electric motor saver can effectively follow the tracks of these small load variations, when motor in zero load, underloading, in just automatically reduce electric moter voltage while carrying, supply less a little electric energy, in the time changing to heavy duty, automatically follow up again and supply a little electric energy more, ensure motor safe handling, need how many how much confession, saves energy to greatest extent.
Utility model content
Utility model object: the utility model object is for the deficiencies in the prior art, provides a kind of saves energy, the electric motor intelligent electricity saver of safe electric current of voltage regulation is provided.
Technical scheme: a kind of electric motor intelligent electricity saver described in the utility model, comprise direct current regulation circuit, pulse-width modulation circuit, half-bridge drive circuit and high-frequency isolation transforming circuit, described direct current regulation circuit comprises transformer T1, bridge rectifier, filter capacitor C1, current-limiting resistance R2 and voltage stabilizing didoe D5, the voltage input end of described transformer T1 is connected with the power supply of described electricity-saving appliance, the voltage output end of described transformer T1 is connected with the input of described bridge rectifier, described bridge rectifier and described filter capacitor C1 are parallel with one another, the equal ground connection of negative pole of described filter capacitor C1 and described voltage stabilizing didoe D5, the positive pole of described filter capacitor C1 is connected after described current-limiting resistance R2 and is connected with the positive pole of described voltage stabilizing didoe D5,
Described pulse-width modulation circuit comprises chip TL494CN, the pin 8 of described chip TL494CN is connected with the positive pole of described voltage stabilizing didoe D5, pin 1, pin 7, pin 13, pin 14 and the equal ground connection of pin 15 of described chip TL494CN, the pin 9 of described chip TL494CN and pin 10 are for driving signal output part;
Described half-bridge drive circuit comprises field effect transistor Q1 and field effect transistor Q2, the G utmost point of described field effect transistor Q1 is connected with the pin 9 of described chip TL494CN, the G utmost point of described field effect transistor Q2 is connected with the pin 10 of described chip TL494CN, the S utmost point of described field effect transistor Q1 and the S of described field effect transistor Q2 be ground connection extremely all, and the D utmost point of described field effect transistor Q1 is connected with the input of described high-frequency isolation transforming circuit respectively with the D utmost point of described field effect transistor Q2;
Described high-frequency isolation transforming circuit comprises transformer T2 and at least 2 controllable silicon diodes, the primary coil two-end-point of described transformer T2 is connected respectively at the D utmost point of described field effect transistor Q1 and the D utmost point of described field effect transistor Q2, and the variable end-point of the primary coil of described transformer T2 is connected with the positive pole of the voltage stabilizing didoe D5 of described direct current regulation circuit; The secondary coil of described transformer T2 is connected with the positive pole of at least 2 controllable silicon diodes
Being further defined to of technical solutions of the utility model, also comprise circuit overcurrent protection, described circuit overcurrent protection comprises diode D6, dropping resistor R1, electrochemical capacitor C2 and bidirectional trigger diode D7, the positive pole of described diode D6 is connected with the power supply of described electricity-saving appliance is anodal, the negative pole of described diode D6 is connected with one end of described dropping resistor R1, the other end of described dropping resistor R1 is connected with one end of described bidirectional trigger diode D7 respectively at the positive pole of described electrochemical capacitor C2, the minus earth of described electrochemical capacitor C2, the other end of described bidirectional trigger diode D7 is connected with the pin 16 of described chip TL494CN.
Further, described dropping resistor R1 is 10K Ω/1w, and described electrochemical capacitor C2 is 50V/220UF.
Further, described transformer T1 is the transformer that 380V voltage is converted into 20V voltage.
Further, described bridge rectifier comprises diode D1, D2, D3 and D4, and after described diode D1 and D2 series connection, the circuit after connecting with described diode D3 and D4 is parallel with one another.
Further, the pin 5 of described chip TL494CN connect with capacitor C 3 after ground connection, described capacitor C 3 is 50V/0.1UF.
Further, the pin 6 of described chip TL494CN connect with resistance R 3 after ground connection, described resistance R 3 is 1 K Ω/0.25w.
Further, the angle of flow of the controllable silicon diode in described high-frequency isolation transforming circuit after opening is 170 degree.
Beneficial effect: the utility model provides a kind of electric motor intelligent electricity saver, realize the voltage stabilizing control to motor power supply by direct current regulation circuit, realize the control of the power frequency to motor power supply by pulse-width modulation circuit and half-bridge drive circuit, and by the rectified action of controllable silicon diode, further ensure the steady of output current, simultaneously, by high-frequency isolation transforming circuit, output triggering signal, ensures motor safety running, saves energy to greatest extent; The utility model, by the above-mentioned control circuit control silicon controlled angle of flow, makes the supply power voltage of motor only need the time of 10s from 280V arrival 380V, thereby realizes the soft start function of electricity-saving appliance; Meanwhile, the utility model also, by circuit overcurrent protection, is realized the protection of electricity-saving appliance self to overvoltage and overcurrent, avoids accident to occur, and ensures the safety of components and parts in electricity-saving appliance, extends the useful life of electricity-saving appliance.
Brief description of the drawings
Fig. 1 is the schematic diagram of electric motor intelligent electricity saver;
Fig. 2 is the internal circuit diagram of electric motor intelligent electricity saver.
Embodiment
Below by accompanying drawing, technical solutions of the utility model are elaborated, but protection range of the present utility model is not limited to described embodiment.
embodiment 1:this enforcement provides a kind of electric motor intelligent electricity saver, its fundamental diagram as shown in Figure 1, RST is 380V voltage input end, and the voltage of 380V inputs to the voltage input interface 01,02 of electric motor intelligent electricity saver, and by voltage stabilizing feedback interface 13,14, burning voltage is inputed to the power supply place of motor.
The circuit diagram of the electric motor intelligent electricity saver that the present embodiment provides as shown in Figure 2, comprises direct current regulation circuit, pulse-width modulation circuit, half-bridge drive circuit, high-frequency isolation transforming circuit and circuit overcurrent protection.
Described direct current regulation circuit comprises transformer T1, bridge rectifier, filter capacitor C1, current-limiting resistance R2 and voltage stabilizing didoe D5, the voltage input end of described transformer T1 is connected with the power supply of described electricity-saving appliance, the voltage output end of described transformer T1 is connected with the input of described bridge rectifier, and described bridge rectifier and described filter capacitor C1 are parallel with one another.Described bridge rectifier comprises diode D1, D2, D3 and D4, and the model of described diode D1, D2, D3 and D4 is IN4007.After described diode D1 and D2 series connection, the circuit after connecting with described diode D3 and D4 is parallel with one another.Described filter capacitor C1 is 50V/100UF, the equal ground connection of negative pole of its negative pole and described voltage stabilizing didoe D5, the positive pole of described filter capacitor C1 is connected after described current-limiting resistance R2 and is connected with the positive pole of described voltage stabilizing didoe D5, described current-limiting resistance R2 is 100 Ω/1w, and the model of described voltage stabilizing didoe D5 is IN4744,15V voltage stabilizing didoe.
Transformer T1 is the transformer that 380V voltage is converted into 20V voltage, and 380V supply power voltage is exported about 20V after transformer T1, after rectification, filtering, current limliting, then through voltage stabilizing didoe voltage stabilizing, forms full-wave direct current voltage stabilizing power supply.
Described pulse-width modulation circuit comprises chip TL494CN, the pin 8 of described chip TL494CN is connected with the positive pole of described voltage stabilizing didoe D5, pin 1, pin 7, pin 13, pin 14 and the equal ground connection of pin 15 of described chip TL494CN, the pin 9 of described chip TL494CN and pin 10 are for driving signal output part.The pin 5 of described chip TL494CN connect with capacitor C 3 after ground connection, described capacitor C 3 is 50V/0.1UF.The pin 6 of described chip TL494CN connect with resistance R 3 after ground connection, described resistance R 3 is 1 K Ω/0.25w.
Described half-bridge drive circuit comprises field effect transistor Q1 and field effect transistor Q2, and the model of two field effect transistor is IRFD120.The G utmost point of described field effect transistor Q1 is connected with the pin 9 of described chip TL494CN, the G utmost point of described field effect transistor Q2 is connected with the pin 10 of described chip TL494CN, the S utmost point of described field effect transistor Q1 and the S of described field effect transistor Q2 be ground connection extremely all, and the D utmost point of described field effect transistor Q1 is connected with the input of described high-frequency isolation transforming circuit respectively with the D utmost point of described field effect transistor Q2.
Described high-frequency isolation transforming circuit comprises transformer T2 and at least 2 controllable silicon diodes, the primary coil two-end-point of described transformer T2 is connected respectively at the D utmost point of described field effect transistor Q1 and the D utmost point of described field effect transistor Q2, and the variable end-point of the primary coil of described transformer T2 is connected with the positive pole of the voltage stabilizing didoe D5 of described direct current regulation circuit; Output triggering signal after the secondary coil of described transformer T2 is connected with the positive pole of at least 2 controllable silicon diodes.In the present embodiment, the number of controllable silicon diode is 6, forms 6 controllable silicon gate poles and triggers port (1,2,3,4,5,6).High-frequency isolation transforming circuit make secondary generation pulse voltage approximately 3 ~ 5V separate through diode IN4744, trigger bidirectional triode thyristor make controlled silicon conducting, the angle of flow after controlled silicon conducting is 170 degree.
Described circuit overcurrent protection comprises diode D6, dropping resistor R1, electrochemical capacitor C2 and bidirectional trigger diode D7, described diode D6 is IN4007, its anodal connection of power supply anodal and described electricity-saving appliance, the negative pole of described diode D6 is connected with one end of described dropping resistor R1, described dropping resistor R1 is 10K Ω/1w, its other end is connected with one end of described bidirectional trigger diode D7 respectively at the positive pole of described electrochemical capacitor C2, described electrochemical capacitor C2 is 50V/220UF, its minus earth, described bidirectional trigger diode D7 is DB3, its other end is connected with the pin 16 of described chip TL494CN.Described current protecting circuit is electric current, voltage detecting input, for overcurrent, overvoltage protection.The electric current of input or voltage, after diode D6 halfwave rectifier, charge to electrochemical capacitor C2 through dropping resistor R1.When normal operation; the electrochemical capacitor C2 about 20V that charges; bidirectional trigger diode D7 because of voltage not can not conducting; during as overvoltage overcurrent; the voltage of moment electrochemical capacitor C2 charges higher than 35V, makes bidirectional trigger diode D7 open-minded, and voltage signal inputs to the pin 16 of chip TL494CN; chip TL494CN is quit work, thereby play the effect of protection.
The electric motor intelligent electricity saver that the present embodiment provides carries out the processing of voltage stabilization and current stabilization after supply voltage is introduced, finally to the voltage of motor smoothing input, ensure motor safety work while saves energy to greatest extent.
As mentioned above, although represented and explained the utility model with reference to specific preferred embodiment, it shall not be construed as the restriction to the utility model self.Not departing under the spirit and scope prerequisite of the present utility model of claims definition, can make in the form and details various variations to it.
Claims (8)
1. an electric motor intelligent electricity saver, it is characterized in that, comprise direct current regulation circuit, pulse-width modulation circuit, half-bridge drive circuit and high-frequency isolation transforming circuit, described direct current regulation circuit comprises transformer T1, bridge rectifier, filter capacitor C1, current-limiting resistance R2 and voltage stabilizing didoe D5, the voltage input end of described transformer T1 is connected with the power supply of described electricity-saving appliance, the voltage output end of described transformer T1 is connected with the input of described bridge rectifier, described bridge rectifier and described filter capacitor C1 are parallel with one another, the equal ground connection of negative pole of described filter capacitor C1 and described voltage stabilizing didoe D5, the positive pole of described filter capacitor C1 is connected after described current-limiting resistance R2 and is connected with the positive pole of described voltage stabilizing didoe D5,
Described pulse-width modulation circuit comprises chip TL494CN, the pin 8 of described chip TL494CN is connected with the positive pole of described voltage stabilizing didoe D5, pin 1, pin 7, pin 13, pin 14 and the equal ground connection of pin 15 of described chip TL494CN, the pin 9 of described chip TL494CN and pin 10 are for driving signal output part;
Described half-bridge drive circuit comprises field effect transistor Q1 and field effect transistor Q2, the G utmost point of described field effect transistor Q1 is connected with the pin 9 of described chip TL494CN, the G utmost point of described field effect transistor Q2 is connected with the pin 10 of described chip TL494CN, the S utmost point of described field effect transistor Q1 and the S of described field effect transistor Q2 be ground connection extremely all, and the D utmost point of described field effect transistor Q1 is connected with the input of described high-frequency isolation transforming circuit respectively with the D utmost point of described field effect transistor Q2;
Described high-frequency isolation transforming circuit comprises transformer T2 and at least 2 controllable silicon diodes, the primary coil two-end-point of described transformer T2 is connected respectively at the D utmost point of described field effect transistor Q1 and the D utmost point of described field effect transistor Q2, and the variable end-point of the primary coil of described transformer T2 is connected with the positive pole of the voltage stabilizing didoe D5 of described direct current regulation circuit; The secondary coil of described transformer T2 is connected with the positive pole of at least 2 controllable silicon diodes.
2. a kind of electric motor intelligent electricity saver according to claim 1, it is characterized in that, also comprise circuit overcurrent protection, described circuit overcurrent protection comprises diode D6, dropping resistor R1, electrochemical capacitor C2 and bidirectional trigger diode D7, the positive pole of described diode D6 is connected with the power supply of described electricity-saving appliance is anodal, the negative pole of described diode D6 is connected with one end of described dropping resistor R1, the other end of described dropping resistor R1 is connected with one end of described bidirectional trigger diode D7 respectively at the positive pole of described electrochemical capacitor C2, the minus earth of described electrochemical capacitor C2, the other end of described bidirectional trigger diode D7 is connected with the pin 16 of described chip TL494CN.
3. a kind of electric motor intelligent electricity saver according to claim 2, is characterized in that, described dropping resistor R1 is 10K Ω/1w, and described electrochemical capacitor C2 is 50V/220UF.
4. a kind of electric motor intelligent electricity saver according to claim 1, is characterized in that, described transformer T1 is the transformer that 380V voltage is converted into 20V voltage.
5. a kind of electric motor intelligent electricity saver according to claim 1, is characterized in that, described bridge rectifier comprises diode D1, D2, D3 and D4, and after described diode D1 and D2 series connection, the circuit after connecting with described diode D3 and D4 is parallel with one another.
6. a kind of electric motor intelligent electricity saver according to claim 1, is characterized in that, the pin 5 of described chip TL494CN connect with capacitor C 3 after ground connection, described capacitor C 3 is 50V/0.1UF.
7. a kind of electric motor intelligent electricity saver according to claim 1, is characterized in that, the pin 6 of described chip TL494CN connect with resistance R 3 after ground connection, described resistance R 3 is 1 K Ω/0.25w.
8. a kind of electric motor intelligent electricity saver according to claim 1, is characterized in that, the angle of flow after the controllable silicon diode in described high-frequency isolation transforming circuit is opened is 170 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420464479.XU CN204013322U (en) | 2014-08-15 | 2014-08-15 | A kind of electric motor intelligent electricity saver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420464479.XU CN204013322U (en) | 2014-08-15 | 2014-08-15 | A kind of electric motor intelligent electricity saver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204013322U true CN204013322U (en) | 2014-12-10 |
Family
ID=52053257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420464479.XU Withdrawn - After Issue CN204013322U (en) | 2014-08-15 | 2014-08-15 | A kind of electric motor intelligent electricity saver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204013322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124910A (en) * | 2014-08-15 | 2014-10-29 | 江阴宏龙节能技术有限公司 | Intelligent motor power saver |
-
2014
- 2014-08-15 CN CN201420464479.XU patent/CN204013322U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124910A (en) * | 2014-08-15 | 2014-10-29 | 江阴宏龙节能技术有限公司 | Intelligent motor power saver |
| CN104124910B (en) * | 2014-08-15 | 2016-08-17 | 江阴宏龙节能技术有限公司 | A kind of electric motor intelligent electricity saver |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10807184B2 (en) | SiC inverted plasma cutting power supply | |
| CN206100548U (en) | Electrical power generating system based on ARM control system realizes drive of single -stage PFCLED | |
| CN204928585U (en) | High PF value is turned over and is swashed topological circuit with overvoltage protection | |
| CN104201761A (en) | Power supply system integrating photovoltaic power system and communication power supply | |
| CN104124910B (en) | A kind of electric motor intelligent electricity saver | |
| CN104128680B (en) | Electrochemical machining high frequency pulse power source based on SOPC technology | |
| CN203775041U (en) | Alternating-current power source based on dual voltage rectifying and BOOST circuits | |
| CN204013322U (en) | A kind of electric motor intelligent electricity saver | |
| CN206293365U (en) | A kind of energy-saving resistance-capacitance depressurization relay drive circuit | |
| CN102794546B (en) | Control circuit for gas-shielded welding machine | |
| CN207021893U (en) | One kind matches somebody with somebody the low apparent power digital circuit of network source | |
| CN102361341B (en) | Contravariant pulsed program controlled charging equipment | |
| CN204539544U (en) | Solid state laser pumping xenon lamp power supply | |
| CN205510508U (en) | Traffic signal lamp drive circuit | |
| CN206195435U (en) | Battery charge protection circuit | |
| CN205377731U (en) | Novel motor is energy -conserving device | |
| CN205787994U (en) | The pre-regulating circuit of exchange based on transistor | |
| CN105720895A (en) | Intelligent motor energy saver | |
| CN202726267U (en) | Drive circuit of power contactor for control circuit of gas shielded welder | |
| CN202142868U (en) | Motor power saving system of oil pumping unit in oil field | |
| CN108155848A (en) | A kind of electric motor intelligent electricity saver | |
| CN106911285A (en) | A kind of electric motor intelligent electricity saver | |
| CN106911288A (en) | A kind of electric motor intelligent electricity saver | |
| CN106803733A (en) | A kind of electric motor intelligent electricity saver | |
| CN106788108A (en) | A kind of electric motor intelligent electricity saver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |