CN210041318U - Protection device for output short circuit of variable frequency compressor controller - Google Patents
Protection device for output short circuit of variable frequency compressor controller Download PDFInfo
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- CN210041318U CN210041318U CN201920828813.8U CN201920828813U CN210041318U CN 210041318 U CN210041318 U CN 210041318U CN 201920828813 U CN201920828813 U CN 201920828813U CN 210041318 U CN210041318 U CN 210041318U
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Abstract
The utility model discloses a protection device of inverter compressor controller output short circuit, including protection device, input power, main circuit and compressor, the output of input power with the input of protection device is connected, be connected with the main circuit on the main circuit, and the main circuit is one of IPM or IGBT, be equipped with the switch on the main circuit, and the main circuit with protection device's output is connected, the input of compressor with the output of main circuit is connected; the utility model discloses an add protection device before the major loop, utilize power supply circuit and output protection circuit to cooperate, make the variable frequency controller of compressor not fragile when the output short circuit, device simple structure, cost is cheap relatively.
Description
Technical Field
The utility model relates to a protection equipment technical field of frequency conversion drive plate especially relates to a protection device of frequency conversion compressor controller output short circuit.
Background
The application of household electrical appliances frequency conversion technique has more and more extensively, has the advantage that the energy consumption is low, efficient, mainly relates to refrigerator, air conditioner, frequency conversion controller technical field for the washing machine, wherein, in the application to frequency conversion compressor, in case the circumstances such as frequency conversion controller output short circuit appear, frequency conversion controller and easy damage, and among the prior art, frequency conversion controller is at the operation in-process, can't obtain energy consumption's data, consequently, the utility model provides a protection device of frequency conversion compressor controller output short circuit is with the problem of solving existence among the prior art.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a protection device of inverter compressor controller output short circuit, this protection device of inverter compressor controller output short circuit is through adding protection device before the major loop, utilize power supply circuit and output protection return circuit to cooperate, the inverter controller who makes the compressor is not fragile when the output short circuit, device simple structure, the cost is low relatively, and through the voltage measurement return circuit, the voltage and the electric current of input power can be measured and A/D converting circuit data are sampled to current measurement return circuit and AD sampling return circuit, can give terminal and demonstration with these data transmission through data display return circuit and transmission interface return circuit, be convenient for obtain energy consumption's data, and the operation conditions of device.
In order to solve the above problems, the utility model provides a protection device for output short circuit of inverter compressor controller, including protection device, input power supply, main circuit and compressor, the output of input power supply is connected with the input of protection device, be connected with the main circuit on the main circuit, and the main circuit is one of IPM or IGBT, be equipped with the switch on the main circuit, and the main circuit is connected with the output of protection device, the input of compressor with the output of main circuit is connected;
the protection device comprises a single-chip microcomputer control calculation processing circuit, a voltage measurement circuit, a current measurement circuit, an analog/digital (A/D) sampling circuit, a power supply circuit and an output protection circuit, wherein the input end of the single-chip microcomputer control calculation processing circuit is connected with the voltage measurement circuit, the current measurement circuit and the A/D sampling circuit, and the output end of the single-chip microcomputer control calculation processing circuit is connected with the power supply circuit and the output protection circuit.
The further improvement lies in that: and the data output end of the single chip microcomputer control and computer processing circuit is connected with a transmission interface circuit and a data display circuit.
The further improvement lies in that: the output end of the main circuit is integrated with a three-phase power supply output end, and the three-phase power supply output end is respectively: phase A: a + and A-, B phases: b + and B-, C phase: and the phase A, the phase B and the phase C are all connected with the input end of the compressor.
The further improvement lies in that: the input of compressor is three-phase winding incoming end, and three-phase winding incoming end is U wiring end, V wiring end and W wiring end respectively, U wiring end, V wiring end, W wiring end are connected respectively A looks, B looks, C looks.
The further improvement lies in that: the voltage measuring circuit, the current measuring circuit and the A/D sampling circuit measure the voltage and the current of the input power supply and sample the data of the A/D conversion circuit, and the power supply circuit and the output protection circuit are connected with the main circuit and the switch.
The utility model has the advantages that: the utility model discloses an add protection device before the major loop, utilize power supply circuit and output protection circuit to cooperate, the variable frequency controller who makes the compressor is not fragile when the output short circuit, device simple structure, and the cost is cheap relatively, just the utility model discloses a voltage measurement circuit, current measurement circuit and AD sampling circuit can measure the voltage and the electric current of input power and sample AD converting circuit data, can give the terminal and show with these data transmission through data display circuit and transmission interface return circuit, are convenient for obtain energy consumption's data, and the operation situation of device.
Drawings
Fig. 1 is a circuit diagram of the present invention.
Fig. 2 is a schematic diagram of the hardware control of the protection device of the present invention.
Wherein: 1. a protection device; 2. inputting a power supply; 3. a main circuit; 4. a compressor; 5. a main loop; 6. a switch; 7. the singlechip controls a computer processing loop; 8. a voltage measurement circuit; 9. a current measurement loop; 10. an A/D sampling loop; 11. a power supply loop; 12. an output protection loop; 13. a transmission interface loop; 14. a data display circuit; 15. a three-phase power supply output end; 16. and the three-phase winding is connected to the end.
Detailed Description
In order to deepen the understanding of the present invention, the following embodiments will be combined to make the present invention do further details, and the present embodiment is only used for explaining the present invention, and does not constitute the limitation of the protection scope of the present invention.
According to fig. 1 and 2, the embodiment provides a protection device for an output short circuit of an inverter compressor controller, which includes a protection device 1, an input power supply 2, a main circuit 3 and a compressor 4, wherein an output end of the input power supply 2 is connected to an input end of the protection device 1, the main circuit 3 is connected to a main circuit 5, the main circuit 5 is one of IPM or IGBT, the main circuit 5 is provided with a switch 6, the main circuit 5 is connected to an output end of the protection device 1, and an input end of the compressor 4 is connected to an output end of the main circuit 3;
The data output end of the single chip microcomputer control calculation processing circuit 7 is connected with a transmission interface circuit 13 and a data display circuit 14, so that the running data of the transmission device can be conveniently transmitted to a terminal and displayed.
The output end of the main circuit 3 is integrated with a three-phase power supply output end 15, and the three-phase power supply output end 15 is respectively: phase A: a + and A-, B phases: b + and B-, C phase: and C + and C-, the phase A, the phase B and the phase C are all connected with the input end of the compressor 4.
The input end of the compressor 4 is a three-phase winding incoming end 16, the three-phase winding incoming end 16 is a U wiring end, a V wiring end and a W wiring end respectively, and the U wiring end, the V wiring end and the W wiring end are connected with the A phase, the B phase and the C phase respectively.
The voltage measuring circuit 8, the current measuring circuit 9 and the A/D sampling circuit 10 measure the voltage and the current of the input power supply 2 and sample the data of the A/D conversion circuit, and the power supply circuit 11 and the output protection circuit 12 are connected with the main circuit 5 and the switch 6.
The protection device for the output short circuit of the variable frequency compressor controller is characterized in that the protection device 1 is added in front of the main loop 5, and the power supply loop 11 is matched with the output protection loop 12, so that the variable frequency controller of the compressor 4 is not easy to damage when the output short circuit occurs, the device is simple in structure and relatively low in cost, the protection device for the output short circuit of the variable frequency compressor controller can measure the voltage and the current of the input power supply 2 through the voltage measurement loop 8, the current measurement loop 9 and the A/D sampling loop 10 and sample A/D conversion circuit data, the data can be transmitted to a terminal and displayed through the data display loop 14 and the transmission interface loop 13, and the data of energy consumption and the operation condition of the device can be conveniently obtained.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a protection device of inverter compressor controller output short circuit, includes protection device (1), input power supply (2), main circuit (3) and compressor (4), its characterized in that: the output end of the input power supply (2) is connected with the input end of the protection device (1), a main loop (5) is connected to the main circuit (3), the main loop (5) is one of IPM or IGBT, a switch (6) is arranged on the main loop (5), the main loop (5) is connected with the output end of the protection device (1), and the input end of the compressor (4) is connected with the output end of the main circuit (3);
protection device (1) includes single chip microcomputer control calculation processing circuit (7), voltage measurement return circuit (8), current measurement return circuit (9), AD sampling circuit (10), power supply return circuit (11) and output protection return circuit (12), the input of single chip microcomputer control calculation processing circuit (7) is connected with voltage measurement return circuit (8), current measurement return circuit (9) and AD sampling circuit (10), the output of single chip microcomputer control calculation processing return circuit (7) is connected with power supply return circuit (11) and output protection return circuit (12).
2. The apparatus of claim 1, wherein the inverter compressor controller comprises an output short circuit protection device, and the output short circuit protection device comprises: the data output end of the single chip microcomputer control computer processing loop (7) is connected with a transmission interface loop (13) and a data display loop (14).
3. The apparatus of claim 1, wherein the inverter compressor controller comprises an output short circuit protection device, and the output short circuit protection device comprises: the output end of the main circuit (3) is integrated with a three-phase power supply output end (15), and the three-phase power supply output end (15) is respectively as follows: phase A: a + and A-, B phases: b + and B-, C phase: and C + and C-, and the phase A, the phase B and the phase C are all connected with the input end of the compressor (4).
4. The apparatus of claim 3, wherein the inverter compressor controller comprises an output short circuit protection device, and the output short circuit protection device comprises: the input of compressor (4) is three-phase winding incoming end (16), and three-phase winding incoming end (16) are U wiring end, V wiring end and W wiring end respectively, U wiring end, V wiring end, W wiring end are connected respectively A looks, B looks, C looks.
5. The apparatus of claim 1, wherein the inverter compressor controller comprises an output short circuit protection device, and the output short circuit protection device comprises: the voltage measurement circuit (8), the current measurement circuit (9) and the A/D sampling circuit (10) measure the voltage and the current of the input power supply (2) and sample A/D conversion circuit data, and the power supply circuit (11) and the output protection circuit (12) are connected with the main circuit (5) and the switch (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920828813.8U CN210041318U (en) | 2019-06-04 | 2019-06-04 | Protection device for output short circuit of variable frequency compressor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920828813.8U CN210041318U (en) | 2019-06-04 | 2019-06-04 | Protection device for output short circuit of variable frequency compressor controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210041318U true CN210041318U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920828813.8U Active CN210041318U (en) | 2019-06-04 | 2019-06-04 | Protection device for output short circuit of variable frequency compressor controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210041318U (en) |
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2019
- 2019-06-04 CN CN201920828813.8U patent/CN210041318U/en active Active
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