CN206210702U - A kind of energy-saving controller of HVDC relay - Google Patents
A kind of energy-saving controller of HVDC relay Download PDFInfo
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- CN206210702U CN206210702U CN201621277690.6U CN201621277690U CN206210702U CN 206210702 U CN206210702 U CN 206210702U CN 201621277690 U CN201621277690 U CN 201621277690U CN 206210702 U CN206210702 U CN 206210702U
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Abstract
The utility model discloses a kind of energy-saving controller of HVDC relay, include input circuit, auxiliary power circuit, voltage sampling circuit and control circuit, input circuit is connected by voltage sampling circuit with control circuit, input circuit is connected by auxiliary power circuit with control circuit, controls the coil of the output end connection HVDC relay of circuit.The utility model gathers input voltage and is transferred to control circuit by voltage sampling circuit, control circuit adjusts the PWM ripples of dutycycle according to input voltage, so as to adjust the virtual value of relay coil voltage, substantially reduce the power consumption that high-voltage relay coil is constantly under working condition, heating is reduced, so as to improve the service life of HVDC relay.
Description
Technical field
The utility model is related to relay field, specifically a kind of energy-saving controller of HVDC relay.
Background technology
HVDC relay is mainly used in vehicle electric system, plays control and buffer action.Relay inside is logical
Coil drive work of electromagnet is crossed, when relay works, coil electricity, electromagnetic actuation；When relay is stopped, line
Circle power-off, electromagnet disconnects.But, when existing HVDC relay works, relay coil is constantly in working condition,
Continuous persistent fever, when input voltage increases, the power of relay coil also increases therewith, and the caloric value of relay coil increases
Greatly.With the accumulation of heat, the temperature of high-voltage relay can be stepped up, because the contact inside of high-voltage relay is full of nitrogen
Gas, air pressure is 2 atmospheric pressure, and the volumetric expansion when temperature is raised, air pressure increase may result in relay and explode, produces
Raw potential safety hazard.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of energy-saving controller of HVDC relay, according to defeated
Export the PWM ripples of corresponding dutycycle with entering the different intelligent of voltage, adjust the virtual value of relay coil voltage, substantially reduce after
The power consumption of electric apparatus coil.
The technical solution of the utility model is：
A kind of energy-saving controller of HVDC relay, includes input circuit, auxiliary power circuit, voltage sample electricity
Road and control circuit, described input circuit are connected by auxiliary power circuit with control circuit, and described input circuit passes through
Voltage sampling circuit is connected with control circuit, and the output end of described control circuit connects the coil of HVDC relay.
Described input circuit includes electric capacity C7, diode D8 and inductance L2, one end of described electric capacity C7 and power supply
Positive pole is connected, and the other end ground connection of electric capacity C7, the positive pole of described diode D8 is connected with positive source, the negative pole of diode D8
Input respectively with voltage sampling circuit, the input of auxiliary power circuit are connected, one end of described inductance L2 and power supply
Negative pole is connected, the other end ground connection of inductance L2.
Described control circuit includes single-chip microcomputer U2, field effect tube chip U3, voltage-regulator diode D3, inductance L1, two poles
Pipe D1, diode D2, diode D6, electric capacity C8, electric capacity C6, resistance R1, resistance R2, resistance R0 and resistance R4, described monolithic
The power input of machine U2 is connected with the output end of auxiliary power circuit, I/O ports and the voltage sampling circuit of single-chip microcomputer U2
Output end is connected, and the signal output part of single-chip microcomputer U2 is connected by resistance R2 with the G2 ends of field effect tube chip U3, resistance R0's
One end is connected between resistance R2 and the G2 ends of field effect tube chip U3, the other end ground connection of resistance R0, described FET
The S2 ends ground connection of chip U3, the D2 ends of field effect tube chip U3 are connected with S1 ends, the D1 ends connection output of field effect tube chip U3
Negative pole, described positive source is connected by inductance L1 with the positive pole of diode D1, one end of electric capacity C8, the positive pole of diode D6
Negative pole with diode D1 is connected, the other end of electric capacity C8 ground connection, the negative pole of diode D6 by after resistance R1 together with voltage stabilizing
The negative pole of diode D3, one end of electric capacity C6, one end of resistance R4 are connected with the G1 ends of field effect tube chip U3, the pole of voltage stabilizing two
Positive pole, the other end of electric capacity C6, the other end of resistance R4, the S1 ends of field effect tube chip U3 of pipe D3 with diode D2 just
Pole connects, and the negative pole of diode D1, the negative pole of diode D2 are connected with output cathode, described output cathode and output negative pole
Between be connected with the coil of described HVDC relay.
Described auxiliary power circuit includes FET V1, voltage stabilizing chip U1, electric capacity C1, electric capacity C2 and resistance R7,
The drain electrode of FET V1 is connected with the negative pole of diode D8, the input of the source electrode connection voltage stabilizing chip U1 of FET V1,
The output end of the grid connection voltage stabilizing chip U1 of FET V1, one end of described electric capacity C1, one end of resistance R7 with surely
The output end connection of pressure chip U1, the other end of described resistance R7, one end of electric capacity C2 with the power input of single-chip microcomputer U2
End connection, the other end of described electric capacity C1, the other end of electric capacity C1 are grounded.
Described voltage sampling circuit includes resistance R5, diode D5, resistance R3 and electric capacity C4, described resistance R5's
One end is connected with the negative pole of diode D8, and the other end of resistance R5, the negative pole of diode D5 connect with the AN3 ports of single-chip microcomputer U2
Connect, the plus earth of diode D5, one end of described resistance R3, one end of electric capacity C4 connect with the AN3 ports of single-chip microcomputer U2
Connect, the other end of resistance R3, the other end of electric capacity C4 are grounded.
The energy-saving controller of described HVDC relay also includes protection circuit, and described protection circuit is included
Source electrode of the one end, one end of electric capacity C5 of electric capacity C3 and electric capacity C5, described electric capacity C3 with FET V1 is connected, electric capacity C3
The other end, the other end of electric capacity C5 is grounded.
Advantage of the present utility model：
(1), Energy Saving Control：The utility model gathers input voltage and is transferred to control circuit by voltage sampling circuit, controls
Circuit processed adjusts the PWM ripples of dutycycle according to input voltage, so as to adjust the virtual value of relay coil voltage, substantially reduces height
Potential relay coil is constantly in the power consumption under working condition, heating is reduced, so as to improve the use longevity of HVDC relay
Life；
(2), timing function：Output voltage can change with time stepping method, be divided into initial start up phase and holding stage.
In the 130ms of high-voltage relay initial start up phase, output voltage dutycycle minimum 50%, according to P=U2/ R, it is possible to decrease after
The power consumption of the reduction relay coil 75% of electric apparatus coil；Holding stage after relay starts successfully, output voltage duty
Than minimum 7%, maximum can reduce the power consumption of relay coil 99.5%；
(3), high voltage protective：The operating voltage range of high-voltage relay is 8-36V, but voltage be higher than 36V when relay
Also normal work, simply power consumption continuation increase, relay still works when exceeding operating voltage range in order to avoid input voltage,
The voltage signal that this circuit is gathered according to voltage sampling circuit, sets high voltage protective point (36V) and high voltage protective solution in a program
Except point (35.8V), i.e., input voltage is stepped up, when reaching high voltage protective point 36V, energy-saving controller stop output, high pressure after
Electrical equipment disconnects；More than input voltage high voltage protective point gradually reduce, when high voltage protective releasing point 35.8V is reduced to, energy-conservation control
Device processed recovers output, and high-voltage relay adhesive, defencive function is automatically terminated, can effectively protective relay coil and its load；It is high
The design of protection is pressed, input voltage can be effectively solved and is in when near protection point, what high-voltage relay contact was frequently beated asks
Topic.
Brief description of the drawings
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is circuit diagram of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
See Fig. 1, a kind of energy-saving controller of HVDC relay includes input circuit A, auxiliary power circuit B, protects
Protection circuit C, voltage sampling circuit D and control circuit E, input circuit A are connected by voltage sampling circuit D with control circuit E, defeated
Enter circuit A to be connected with control circuit E by auxiliary power circuit B, protection circuit C is connected with auxiliary power circuit B, controls circuit
The output end of E connects the coil of HVDC relay.
See that Fig. 2, input circuit A include electric capacity C7, diode D8 and inductance L2, one end and the positive source of electric capacity C7 connect
Connect, the other end ground connection of electric capacity C7, the positive pole of diode D8 is connected with positive source, one end and the power cathode of inductance L2 connect
Connect, the other end ground connection of inductance L2；
Control circuit E include single-chip microcomputer U2, field effect tube chip U3, voltage-regulator diode D3, inductance L1, diode D1,
Diode D2, diode D6, electric capacity C8, electric capacity C6, resistance R1, resistance R2, resistance R0 and resistance R4, the signal of single-chip microcomputer U2 are defeated
Go out end (pin 5) to be connected with the G2 ends (pin 4) of field effect tube chip U3 by resistance R2, one end of resistance R0 is connected to resistance
Between the G2 ends (pin 4) of R2 and field effect tube chip U3, the other end ground connection of resistance R0, the S2 ends of field effect tube chip U3
(pin 3) is grounded, and the D2 ends (pin 5 and 6) of field effect tube chip U3 are connected with S1 ends (pin 1), field effect tube chip U3's
D1 ends (pin 7 and 8) connect output negative pole, and positive source is connected by inductance L1 with the positive pole of diode D1, and the one of electric capacity C8
End, negative pole of the positive pole of diode D6 with diode D1 are connected, and the other end ground connection of electric capacity C8, the negative pole of diode D6 passes through
After resistance R1 together with the negative pole of voltage-regulator diode D3, one end of electric capacity C6, resistance R4 one end with field effect tube chip U3's
G1 ends connect, the positive pole of voltage-regulator diode D3, the other end of electric capacity C6, the other end of resistance R4, the S1 of field effect tube chip U3
Positive pole of the end (pin 1) with diode D2 is connected, and the negative pole of diode D1, the negative pole of diode D are connected with output cathode,
The coil of HVDC relay is connected between output cathode and output negative pole；
Auxiliary power circuit B includes FET V1, voltage stabilizing chip U1, electric capacity C1, electric capacity C2 and resistance R7, field-effect
The drain electrode of pipe V1 is connected with the negative pole of diode D8, the input (He of pin 7 of the source electrode connection voltage stabilizing chip U1 of FET V1
8), the output end (pin 1 and 2) of the grid connection voltage stabilizing chip U1 of FET V1, one end of electric capacity C1, one end of resistance R7
It is connected with the output end (pin 1 and 2) of voltage stabilizing chip U1, the pin 3 and 4 of voltage stabilizing chip U1 is grounded, the other end of resistance R7,
One end of electric capacity C2 is connected with the power input (pin 1) of single-chip microcomputer U2, the other end of electric capacity C1, the other end of electric capacity C1
It is grounded；Protection circuit C includes electric capacity C3 and electric capacity C5, one end of electric capacity C3, one end of electric capacity C5 with FET V1
Source electrode connection, the other end of electric capacity C3, the other end of electric capacity C5 are grounded；
Voltage sampling circuit D includes resistance R5, diode D5, resistance R3 and electric capacity C4, one end of resistance R5 and two poles
The negative pole connection of pipe D8, the other end of resistance R5, the negative pole of diode D5 are connected with the AN3 ports (pin 3) of single-chip microcomputer U2,
The plus earth of diode D5, one end of resistance R3, one end of electric capacity C4 are connected with the AN3 ports (pin 3) of single-chip microcomputer U2,
The other end of resistance R3, the other end of electric capacity C4 are grounded.
Operation principle of the present utility model：
The electric capacity C7 and inductance L2 of input circuit A strobe, and diode D8 separates when input voltage direction is reversed
Circuit, protection circuit system is without damage；Input voltage is transmitted to the input of voltage stabilizing chip U1, voltage stabilizing by FET V1
Chip U1 can stablize output 5V voltages, be powered to the single-chip microcomputer U2 in control circuit E, and the output of voltage stabilizing chip U1 terminates field
The grid of effect pipe V1, forms negative-feedback circuit, and when voltage stabilizing chip U1 output voltages are abnormal, FET V1 is operated in cut-off
Area, cuts off power supply circuit, the safety of protection circuit system；The electric capacity C3 and electric capacity C5 of protection circuit C are respectively used to absorb high frequency
Pulse and low-frequency pulse, protection voltage stabilizing chip U1 will not be because of the influence of interference voltage；Voltage sampling circuit D by resistance R5 and
Resistance R3 partial pressures, the partial pressure value of input voltage signal is transmitted to the AN3 ports (pin 3) of single-chip microcomputer U2；When single-chip microcomputer U2 is adopted
When the input voltage that sample is arrived is more than pick-up voltage (6.6V) of relay, the signal output part output high level letter of single-chip microcomputer U2
Number, the G2 ends of the signal input to field effect tube chip U3, field effect tube chip U3 is connected, the D2 ends of field effect tube chip U3
Logical with S2 terminations, now input voltage is grounded by components such as diode D6, resistance R1 and voltage-regulator diode D3, now voltage stabilizing
5V voltages will be produced on diode D3, the G1 ends of field effect tube chip U3 will be connected to, field effect tube chip U3 will be connected, now defeated
Enter voltage by relay coil (being connected between output cathode and output negative pole), the D1 ends of field effect tube chip U3, S1 ends, D2
End, S2 ends ground connection, then the voltage difference of relay coil is almost input voltage value, and HVDC relay enters working condition,
In the process, the single-chip microcomputer U2 in control circuit is according to the input voltage value for sampling, the duty of regulation and control single-chip microcomputer U2 outputs
Than；When the input voltage value for sampling rises, the dutycycle reduction of single-chip microcomputer U2 outputs, the virtual value of output voltage is protected substantially
Hold constant, the current value of output to relay coil is basically unchanged.
In electric vehicle system, after electric motor car starts successfully, relay is constantly in adhesive shape to HVDC relay application
State, in electric motor car accelerator, applies to the voltage of energy-saving controller input to increase therewith, according to rating formula
P=U2/ R understand, when input voltage U rises, then relay coil part power consumption increase (when temperature-resistant, relay line
Circle resistance is constant).If input voltage fully adds to relay coil, the power consumption increase of relay, caloric value also increases；Energy-conservation
Controller is controlled according to the input voltage value for sampling by the PWM of single-chip microcomputer, adjusts the dutycycle of output voltage, and regulation is passed
Transport to the voltage effective value of relay coil, you can maintain the power consumption of relay coil constant or even reduce, and then reduce relay
The caloric value of device coil.
Because the electric current that HVDC relay needs in adhesive is larger, after adhesive success the maintenance electric current that only needs compared with
It is small.Energy-saving controller be provided with timing function (single-chip microcomputer output be divided to two time periods, connects and exports a kind of waveform after electricity in 100ms,
Another waveform is exported after 100ms, itself timing, timing), (such as input voltage under conditions of same input voltage value
It is 24V), when the initial adhesive of relay, single-chip microcomputer U2 output voltages duty is 50%, there is provided the voltage to relay coil has
Valid value is U × 1/2, and power consumption is P × 1/4, and the pickup time of relay is less than 30ms, therefore the initial of energy-saving controller definition is opened
The dynamic time is 130ms, and this stage can reduce relay coil power consumption 75%.After high-voltage relay initial start success, rank is maintained
Section, the dutycycle of single-chip microcomputer output voltage is 10%, there is provided the voltage effective value to relay coil is U × 1/10, and power consumption is P
× 1/100, high-voltage relay long-term work can reduce the 99% of relay coil power consumption in maintenance stage, this stage.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out various changes in the case where principle of the present utility model and spirit is not departed from, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of energy-saving controller of HVDC relay, it is characterised in that：Include input circuit, auxiliary power circuit,
Voltage sampling circuit and control circuit, described input circuit are connected by auxiliary power circuit with control circuit, and described is defeated
Enter circuit to be connected with control circuit by voltage sampling circuit, the output end of described control circuit connects HVDC relay
Coil.
2. the energy-saving controller of a kind of HVDC relay according to claim 1, it is characterised in that：Described input
Circuit includes electric capacity C7, diode D8 and inductance L2, and one end of described electric capacity C7 is connected with positive source, and electric capacity C7's is another
One end is grounded, and the positive pole of described diode D8 is connected with positive source, the negative pole of diode D8 respectively with voltage sampling circuit
Input, the input connection of auxiliary power circuit, one end of described inductance L2 is connected with power cathode, and inductance L2's is another
One end is grounded.
3. the energy-saving controller of a kind of HVDC relay according to claim 2, it is characterised in that：Described control
Circuit includes single-chip microcomputer U2, field effect tube chip U3, voltage-regulator diode D3, inductance L1, diode D1, diode D2, two poles
Pipe D6, electric capacity C8, electric capacity C6, resistance R1, resistance R2, resistance R0 and resistance R4, the power input of described single-chip microcomputer U2 with
The output end connection of auxiliary power circuit, the I/O ports of single-chip microcomputer U2 are connected with the output end of voltage sampling circuit, single-chip microcomputer U2
Signal output part be connected with the G2 ends of field effect tube chip U3 by resistance R2, one end of resistance R0 is connected to resistance R2 and field
Between the G2 ends of effect die U3, the other end ground connection of resistance R0, the S2 ends of described field effect tube chip U3 are grounded, field effect
The D2 ends of die U3 are answered to be connected with S1 ends, the D1 ends connection output negative pole of field effect tube chip U3, described positive source leads to
Cross inductance L1 to be connected with the positive pole of diode D1, one end of electric capacity C8, the positive pole of diode D6 connect with the negative pole of diode D1
Connect, the other end ground connection of electric capacity C8, the negative pole of diode D6 is by the negative pole after resistance R1 together with voltage-regulator diode D3, electric capacity C6
One end, one end of resistance R4 be connected with the G1 ends of field effect tube chip U3, the positive pole of voltage-regulator diode D3, electric capacity C6 it is another
The positive pole of one end, the other end of resistance R4, the S1 ends of field effect tube chip U3 with diode D2 is connected, and diode D1's is negative
Pole, the negative pole of diode D2 are connected with output cathode, and described height is connected between described output cathode and output negative pole
The coil of straightening current relay.
4. the energy-saving controller of a kind of HVDC relay according to claim 3, it is characterised in that：Described auxiliary
Power circuit includes FET V1, voltage stabilizing chip U1, electric capacity C1, electric capacity C2 and resistance R7, the drain electrode of FET V1 with
The negative pole connection of diode D8, the input of the source electrode connection voltage stabilizing chip U1 of FET V1, the grid of FET V1 connects
Connect the output end of voltage stabilizing chip U1, described one end of electric capacity C1, one end of resistance R7 connect with the output end of voltage stabilizing chip U1
Connect, the power input of the other end, one end of electric capacity C2 of described resistance R7 with single-chip microcomputer U2 is connected, described electric capacity C1
The other end, the other end of electric capacity C1 is grounded.
5. the energy-saving controller of a kind of HVDC relay according to claim 3, it is characterised in that：Described voltage
Sample circuit includes resistance R5, diode D5, resistance R3 and electric capacity C4, and one end of described resistance R5 is negative with diode D8
Pole connects, and the other end of resistance R5, the negative pole of diode D5 are connected with the AN3 ports of single-chip microcomputer U2, the positive pole of diode D5
Ground connection, described one end of resistance R3, one end of electric capacity C4 are connected with the AN3 ports of single-chip microcomputer U2, the other end of resistance R3,
The other end of electric capacity C4 is grounded.
6. the energy-saving controller of a kind of HVDC relay according to claim 4, it is characterised in that：Described high pressure
The energy-saving controller of DC relay also includes protection circuit, and described protection circuit includes electric capacity C3 and electric capacity C5, institute
The source electrode of the one end for the electric capacity C3 for stating, one end of electric capacity C5 with FET V1 is connected, the other end of electric capacity C3, electric capacity C5
The other end is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621277690.6U CN206210702U (en) | 2016-11-26 | 2016-11-26 | A kind of energy-saving controller of HVDC relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621277690.6U CN206210702U (en) | 2016-11-26 | 2016-11-26 | A kind of energy-saving controller of HVDC relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206210702U true CN206210702U (en) | 2017-05-31 |
Family
ID=58747728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621277690.6U Expired - Fee Related CN206210702U (en) | 2016-11-26 | 2016-11-26 | A kind of energy-saving controller of HVDC relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206210702U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106384695B (en) * | 2016-11-26 | 2018-08-14 | 中国电子科技集团公司第四十研究所 | A kind of energy-saving controller of high voltage direct current relay |
| CN108511266A (en) * | 2018-03-13 | 2018-09-07 | 苏州恒美电子科技股份有限公司 | DC relay coil energy-saving control circuit |
| CN109036962A (en) * | 2018-10-08 | 2018-12-18 | 上海西艾爱电子有限公司 | A kind of energy-efficient driving circuit of relay coil |
-
2016
- 2016-11-26 CN CN201621277690.6U patent/CN206210702U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106384695B (en) * | 2016-11-26 | 2018-08-14 | 中国电子科技集团公司第四十研究所 | A kind of energy-saving controller of high voltage direct current relay |
| CN108511266A (en) * | 2018-03-13 | 2018-09-07 | 苏州恒美电子科技股份有限公司 | DC relay coil energy-saving control circuit |
| CN109036962A (en) * | 2018-10-08 | 2018-12-18 | 上海西艾爱电子有限公司 | A kind of energy-efficient driving circuit of relay coil |
| CN109036962B (en) * | 2018-10-08 | 2024-02-09 | 上海西艾爱电子有限公司 | Energy-saving driving circuit for relay coil |
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Granted publication date: 20170531 Termination date: 20211126 |