CN212380944U

CN212380944U - Intelligent power saving device

Info

Publication number: CN212380944U
Application number: CN202021060605.7U
Authority: CN
Inventors: 林增光
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-01-19
Anticipated expiration: 2030-06-10

Abstract

The utility model discloses an intelligent power saving device, which comprises a microprocessor, a voltage stabilizing circuit, a soft start circuit, a bypass circuit, a surge harmonic power saving circuit, a voltage regulating circuit, a RS485 communication interface and a power factor power saving circuit, wherein the microprocessor is connected with the voltage stabilizing circuit, the soft start circuit, the bypass circuit, the surge harmonic power saving circuit, the voltage regulating circuit and the power factor power saving circuit; the voltage stabilizing circuit comprises a voltage input end, a first resistor, a first capacitor, a second resistor, a third resistor, a second triode, a fifth resistor, a first triode, a fourth resistor, a third triode, a fifth resistor, a first diode, a first inductor, a second capacitor, a third diode, a tenth resistor, an eleventh resistor, a seventh resistor, a second voltage stabilizing tube, an eighth resistor, a ninth resistor, a fourth triode and a voltage output end. The utility model discloses circuit structure is comparatively simple, the cost is lower, the security and the reliability of convenient maintenance, circuit are higher.

Description

Intelligent power saving device

Technical Field

The utility model relates to an economize on electricity field, in particular to intelligence power saving device.

Background

The power saver is a device of a power saving protection device and is generally divided into a lighting fixture power saver and various power savers. The power saver has the characteristics of detecting the working state of the motor on line in real time, changing input voltage, reducing system load, improving the capacity of a power supply system and the like. The high-voltage electric equipment has the advantages that the service life and the work doing efficiency of the high-voltage electric equipment are improved, electric energy is saved in the using process, and the operation cost of the equipment can be greatly reduced. Fig. 1 is a schematic circuit diagram of a power supply portion of a conventional power saver, and it can be seen from fig. 1 that the power supply portion of the conventional power saver uses many components, has a complex circuit structure, has high hardware cost, and is inconvenient to maintain. In addition, the power supply part of the traditional power saver lacks corresponding circuit protection functions, such as: the safety and reliability of the circuit are poor due to the lack of the current-limiting protection function.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a circuit structure comparatively simple, the cost is lower, the security and the higher intelligent power saving device of reliability of convenient maintenance, circuit.

The utility model provides a technical scheme that its technical problem adopted is: the intelligent power saving device comprises a microprocessor, a voltage stabilizing circuit, a soft start circuit, a bypass circuit, a surge harmonic power saving circuit, a voltage regulating circuit, an RS485 communication interface and a power factor power saving circuit, wherein the microprocessor is respectively connected with the voltage stabilizing circuit, the soft start circuit, the bypass circuit, the surge harmonic power saving circuit, the voltage regulating circuit, the RS485 communication interface and the power factor power saving circuit;

the voltage stabilizing circuit comprises a voltage input end, a first resistor, a first capacitor, a second resistor, a third resistor, a second triode, a fifth resistor, a first triode, a fourth resistor, a third triode, a fifth resistor, a first diode, a first inductor, a second capacitor, a third diode, a tenth resistor, an eleventh resistor, a seventh resistor, a second voltage stabilizing tube, an eighth resistor, a ninth resistor, a fourth triode and a voltage output end, wherein the voltage input end is respectively connected with an emitting electrode of the second triode, an anode of the first capacitor, one end of the third resistor and one end of the second resistor through the first resistor, a cathode of the first capacitor is grounded, a collector of the first triode is respectively connected with the other end of the second resistor, one end of the fifth resistor and a base of the third triode, and a base of the first triode is respectively connected with one end of the fourth resistor, The anode of the second voltage-regulator tube is connected with one end of a ninth resistor, and the other end of the fourth resistor, the emitter of the first triode and the other end of the sixth resistor are all grounded;

the base electrode of the second triode is respectively connected with the other end of the third resistor and the collector electrode of the third triode, the collector electrode of the second triode is respectively connected with the other end of the fifth resistor, the cathode of the first diode and one end of the first inductor, the other end of the first inductor is respectively connected with the anode of the second capacitor, the anode of the third diode and one end of the tenth resistor, the anode of the first diode and the cathode of the second capacitor are both grounded, the collector electrode of the fourth triode is respectively connected with the cathode of the third diode and one end of the eighth resistor, the other end of the eighth resistor is respectively connected with one end of the seventh resistor and the cathode of the second voltage regulator tube, the other end of the seventh resistor is grounded, the collector electrode of the fourth triode is connected with the other end of the ninth resistor, and the base electrode of the fourth triode is connected with one end of the eleventh resistor, the other end of the eleventh resistor is connected with the other end of the tenth resistor and the voltage output end respectively.

In the intelligent power saving device of the present invention, the third diode has a model of E-562.

In the intelligent power saving device of the present invention, the voltage stabilizing circuit further includes a twelfth resistor, one end of the twelfth resistor is connected to the emitter of the first triode, and the other end of the twelfth resistor is grounded.

In the intelligent power saving device of the present invention, the resistance of the twelfth resistor is 29k Ω.

In the power saving device of the present invention, the first transistor is an NPN transistor.

In the power saving device of the present invention, the second triode is a PNP type triode.

In the power saving device of the present invention, the third transistor is an NPN transistor.

In the power saving device of the present invention, the fourth triode is a PNP type triode.

Implement the utility model discloses an intelligence power saving device has following beneficial effect: the voltage stabilizing circuit comprises a microprocessor, a voltage stabilizing circuit, a soft start circuit, a bypass circuit, a surge harmonic power saving circuit, a voltage regulating circuit, an RS485 communication interface and a power factor power saving circuit, wherein the voltage stabilizing circuit comprises a voltage input end, a first resistor, a first capacitor, a second resistor, a third resistor, a second triode, a fifth resistor, a first triode, a fourth resistor, a third triode, a fifth resistor, a first diode, a first inductor, a second capacitor, a third diode, a tenth resistor, an eleventh resistor, a seventh resistor, a second voltage stabilizing tube, an eighth resistor, a ninth resistor, a fourth triode and a voltage output end The cost is lower, convenient maintenance, the security and the reliability of circuit are higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic circuit diagram of the power supply portion of a conventional power saver;

fig. 2 is a schematic structural diagram of an embodiment of the intelligent power saving device of the present invention;

FIG. 3 is a schematic circuit diagram of a voltage regulator circuit according to the embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the embodiment of the intelligent power saving device of the present invention, a schematic structural diagram of the intelligent power saving device is shown in fig. 2. In fig. 2, the intelligent power saving device includes a microprocessor 1, a voltage stabilizing circuit 2, a soft start circuit 3, a bypass circuit 4, a surge harmonic power saving circuit 5, a voltage regulating circuit 6, an RS485 communication interface 7, and a power factor power saving circuit 8, where the microprocessor 1 is connected to the voltage stabilizing circuit 2, the soft start circuit 3, the bypass circuit 4, the surge harmonic power saving circuit 5, the voltage regulating circuit 6, the RS485 communication interface 7, and the power factor power saving circuit 8, respectively.

The microprocessor 1 adopts dynamic program control, can effectively adjust and correct system power consumption parameters in dynamic change, and performs optimization processing on the system power consumption parameters, thereby ensuring that the system always works in the optimal state.

The surge harmonic power saving circuit 5 adopts a surge harmonic suppression element to perform multiple filtering, so that surge transient in a power grid circuit is effectively suppressed, the operation efficiency of electric equipment is improved, the effects of saving power and prolonging the service life of the device are achieved, the RS485 communication interface 7 can realize remote measurement and remote control, can be connected with an upper unit network, and realizes the control of the microprocessor 1. The power factor electricity-saving circuit 8 can adopt a capacitor with improved power factor to perform reactive power compensation, reduce the total current in a power supply line, reduce the temperature of the power supply line and further achieve the effect of saving electricity.

The voltage regulating circuit 6 can be used for enabling a user to set the output power-saving voltage according to the needs of the user, programming and automatically controlling the operation of the load, reducing the power consumption to the maximum extent and saving the electric energy. The soft start circuit 3 can realize that the voltage is gradually increased from zero to the rated voltage when the motor load is started, so that no impact torque exists in the whole process of starting the motor, and smooth starting operation is realized.

In this embodiment, the microprocessor 1, the soft start circuit 3, the bypass circuit 4, the surge harmonic power saving circuit 5, the voltage regulating circuit 6, the RS485 communication interface 7, and the power factor power saving circuit 8 are all implemented by using a structure in the prior art, and the working principle thereof is also the working principle in the prior art, which is not described in detail herein.

Fig. 3 is a schematic circuit diagram of a voltage regulator circuit in this embodiment, in fig. 3, the voltage regulator circuit 2 includes a voltage input terminal Vin, a first resistor R1, a first capacitor C1, a second resistor R2, a third resistor R3, a second triode Q2, a fifth resistor R5, a first triode Q1, a fourth resistor R4, a third triode Q3, a fifth resistor R5, a first diode D1, a first inductor L1, a second capacitor C2, a third diode D2, a tenth resistor R2, an eleventh resistor R2, a seventh resistor R2, a second regulator D2, an eighth resistor R2, a ninth resistor R2, a fourth triode Q2, and a voltage output terminal Vo, wherein the voltage input terminal Vin is respectively connected to an emitter of the second triode Q2, an anode of the first capacitor C2, one end of the third resistor R2, and a cathode of the second resistor R2, and a collector of the first resistor R2 are respectively connected to ground, and a collector of the first resistor R2, and a collector of the first triode Q2 are respectively connected to the second resistor R2, and a collector of the first resistor R2, and a collector of the second resistor R36, One end of a fifth resistor R5 is connected with the base of a third triode Q3, the base of the first triode Q1 is respectively connected with one end of a fourth resistor R4, the anode of a second voltage-regulator tube D2 and one end of a ninth resistor R9, and the other end of the fourth resistor R4, the emitter of the first triode Q1 and the other end of the sixth resistor R6 are all grounded.

The base of the second triode Q2 is connected with the other end of the third resistor R3 and the collector of the third triode Q3, the collector of the second triode Q2 is connected with the other end of the fifth resistor R5, the cathode of the first diode D1 and one end of the first inductor L1, the other end of the first inductor L1 is connected with the anode of the second capacitor C2, the anode of the third diode D3 and one end of the tenth resistor R10, the anode of the first diode D1 and the cathode of the second capacitor C2 are both grounded, the collector of the fourth triode Q4 is connected with the cathode of the third diode D3 and one end of the eighth resistor R8, the other end of the eighth resistor R8 is connected with one end of the seventh resistor R7 and the cathode of the second diode D2, the other end of the seventh resistor R7 is grounded, the collector of the fourth triode Q4 is connected with the other end of the ninth resistor R9, the base of the fourth triode Q4 is connected with the eleventh stabilivolt resistor Q11, the other end of the eleventh resistor R11 is connected to the other end of the tenth resistor R10 and the voltage output terminal Vo, respectively.

Compared with the power supply part of the traditional electricity saver, the voltage stabilizing circuit 2 has the advantages of fewer used components, simpler circuit structure and convenience in maintenance, and can reduce the hardware cost due to the fact that some components are saved. In addition, the third diode D3 is a current limiting diode for current limiting protection of the emitter current of the fourth transistor Q4. The current limiting protection principle is as follows: when the emitter current of the fourth triode Q4 is large, the emitter current of the fourth triode Q4 can be reduced by the third diode D3 to keep the fourth triode Q4 in a normal operating state, and the elements in the circuit are not burned out due to too large current, so that the safety and reliability of the circuit are high. It should be noted that in the present embodiment, the third diode D3 has a model number of E-562. Of course, in practical applications, the third diode D3 may also be another type of diode with similar functions.

The working principle of the voltage stabilizing circuit 2 is as follows: when the second triode Q2 is conducted, the voltage reaches the voltage output end Vo through the first inductor L1, at this time, the first inductor L1 generates a slow current rise process, and when the voltage of the voltage output end Vo is greater than the breakdown voltage of the second voltage regulator tube D2, the second voltage regulator tube D2 is conducted in the reverse direction, so that the first triode Q1 is conducted; the third transistor Q3 is also turned off, and the third transistor Q3 is turned off resulting in the second transistor Q2 being turned off. The second triode Q2 is cut off, the first inductor L1 discharges through the second voltage-stabilizing tube D2 and the first triode Q1 until the second voltage-stabilizing tube D2 is cut off, and a voltage-stabilizing period is completed from the front side. It follows that the output voltage can be changed by just changing the regulation value of the second regulator tube D2. All the components of the circuit are commonly used components such as triodes or inductors, and the requirements on the components are mainly that the withstand voltage value exceeds the maximum output voltage. The feedback mode is negative feedback, has the characteristics of high response speed, high precision and the like, but has small output current within 50mA, and is suitable for general control circuits.

In this embodiment, the first transistor Q1 is an NPN transistor, the second transistor Q2 is a PNP transistor, the third transistor Q3 is an NPN transistor, and the fourth transistor Q4 is a PNP transistor. Certainly, in practical applications, the first transistor Q1 and the third transistor Q3 may also be PNP transistors, and the second transistor Q2 and the fourth transistor Q4 may also be NPN transistors, but the circuit structure is also changed accordingly.

In this embodiment, the voltage regulator circuit 2 further includes a twelfth resistor R12, one end of the twelfth resistor R12 is connected to the emitter of the first transistor Q1, and the other end of the twelfth resistor R12 is grounded. The twelfth resistor R12 is a current-limiting resistor, and is used for current-limiting protection of the emitter current of the first transistor Q1. The current limiting protection principle is as follows: when the emitter current of the first triode Q1 is large, the twelfth resistor R12 can reduce the emitter current of the first triode Q1 to keep the first triode Q1 in a normal working state, so that the elements in the circuit are not burnt out due to too large current, and the safety and reliability of the circuit are further enhanced. It should be noted that, in this embodiment, the resistance of the twelfth resistor R12 is 29k Ω. Of course, in practical applications, the resistance of the twelfth resistor R12 may be increased or decreased according to specific situations.

In a word, in this embodiment, compared with the power supply part of the conventional power saver, the voltage stabilizing circuit 2 has fewer used components, a simpler circuit structure and convenient maintenance, and can reduce the hardware cost due to the saving of some components. In addition, the voltage stabilizing circuit 2 is provided with a current limiting diode, so that the safety and the reliability of the circuit are high.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent power saving device is characterized by comprising a microprocessor, a voltage stabilizing circuit, a soft start circuit, a bypass circuit, a surge harmonic power saving circuit, a voltage regulating circuit, an RS485 communication interface and a power factor power saving circuit, wherein the microprocessor is respectively connected with the voltage stabilizing circuit, the soft start circuit, the bypass circuit, the surge harmonic power saving circuit, the voltage regulating circuit, the RS485 communication interface and the power factor power saving circuit;

2. The intelligent power saving device of claim 1, wherein the third diode is of type E-562.

3. The intelligent power saving device according to claim 2, wherein the voltage regulator circuit further comprises a twelfth resistor, one end of the twelfth resistor is connected to the emitter of the first triode, and the other end of the twelfth resistor is grounded.

4. The intelligent power saving device according to claim 3, wherein the resistance value of the twelfth resistor is 29k Ω.

5. The intelligent power saving device according to any one of claims 1 to 4, wherein the first triode is an NPN-type triode.

6. The intelligent power saving device according to any one of claims 1 to 4, wherein the second transistor is a PNP transistor.

7. The intelligent power saving device according to any one of claims 1 to 4, wherein the third transistor is an NPN transistor.

8. The intelligent power saving device according to any one of claims 1 to 4, wherein the fourth transistor is a PNP transistor.