CN219574221U - Power converter detection device - Google Patents
Power converter detection device Download PDFInfo
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- CN219574221U CN219574221U CN202320262521.9U CN202320262521U CN219574221U CN 219574221 U CN219574221 U CN 219574221U CN 202320262521 U CN202320262521 U CN 202320262521U CN 219574221 U CN219574221 U CN 219574221U
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Abstract
The utility model relates to a power converter detection device, belongs to the technical field of power converters, and solves the problems that a power converter detector in the prior art is heavy, has more accessories and is not easy to carry. The detection device comprises a detection circuit, a control circuit and a voltmeter; the ammeter, the first load and the second load are connected in series, and the second switch is connected with the second load in parallel; one end of the detection circuit is connected to a current output port of the power converter, and the other end of the detection circuit is connected to a power negative electrode port of the power converter; the control circuit comprises a first switch and a third switch, one end of the first switch is connected with an input power positive electrode port of the power converter, and the other end of the first switch is connected with one end of the third switch; the other end of the third switch is connected with a control signal port of the power converter; one end of the voltmeter is connected with the output voltage sampling port of the power converter, and the other end of the voltmeter is connected with the power negative electrode port of the power converter. The voltage converter is detected rapidly and conveniently.
Description
Technical Field
The utility model relates to the technical field of power converters, in particular to a power converter detection device.
Background
The power converter can provide power for the continuous high-power solid laser, when the vehicle-mounted DC26V voltage is raised to 200V during operation, the voltage is in a boosting state, then the voltage is stably converted into a 65V power supply, the voltage is in a steady-flow state, and the stability of the voltage directly influences the stability of a laser light source of the high-power solid laser. The power converter is composed of two working states, namely a boosting state and a steady-flow state, according to the working characteristics of the load.
The power converter is required to be detected frequently in daily use, and the detector of the power converter in the prior art is heavy in size, requires more accessories and is not easy to carry when in outfield test.
Therefore, a technical solution capable of quickly and conveniently detecting the power converter is needed.
Disclosure of Invention
In view of the above analysis, the present utility model is directed to a power converter detecting device, which is used to solve the problems of heavy power converter detecting device, more accessories and difficult carrying in the prior art.
The aim of the utility model is mainly realized by the following technical scheme:
the utility model provides a power converter detection device, which comprises a detection circuit, a control circuit and a voltmeter, wherein the detection circuit is connected with the control circuit;
the detection circuit comprises an ammeter, a first load, a second load and a second switch, wherein the ammeter, the first load and the second load are connected in series, and the second switch is connected with the second load in parallel; one end of the detection circuit is connected to a current output port of the power converter, and the other end of the detection circuit is connected to a power negative electrode port of the power converter;
the control circuit comprises a first switch and a third switch, one end of the first switch is connected with an input power positive electrode port of the power converter, and the other end of the first switch is connected with one end of the third switch; the other end of the third switch is connected with a control signal port of the power converter;
one end of the voltmeter is connected with the output voltage sampling port of the power converter, and the other end of the voltmeter is connected with the power negative electrode port of the power converter.
Based on the further improvement of the technical scheme, the detection device further comprises a connecting socket, and the detection circuit, the control circuit and the voltmeter are connected with the power converter through the connecting socket.
Based on the further improvement of the technical scheme, the input end of the 1 st interface of the connecting socket is connected with the current output port of the power converter, and the output end is connected with one end of the detection circuit; the input end of the 7 th interface of the connecting socket is connected with the power negative electrode port of the power converter, and the output end of the 7 th interface of the connecting socket is connected with the other end of the detection circuit;
the input end of the 3 rd interface of the connecting socket is connected with the positive electrode port of the input power supply of the power supply converter, and the output end of the connecting socket is connected with one end of the first switch; the input end of the 4 th interface of the connecting socket is connected with the control signal port of the power converter, and the output end of the connecting socket is connected with the other end of the third switch;
the input end of the 6 th interface of the connecting socket is connected with the output voltage sampling port of the power converter, and the output end of the connecting socket is connected with one end of the voltmeter; the input end of the 7 th interface of the connecting socket is connected with the power negative electrode port of the power converter, and the output end of the 7 th interface of the connecting socket is connected with the other end of the voltmeter.
Based on a further improvement of the technical scheme, the control circuit further comprises an indicator lamp;
one end of the indicator light is connected with the other end of the first switch, and the other end of the indicator light is connected with a power negative electrode port of the power converter.
Based on the further improvement of the technical scheme, the control circuit further comprises a shunt resistor:
one end of the shunt resistor is connected with the other end of the first switch, and the other end of the shunt resistor is connected with one end of the indicator lamp.
Based on a further improvement of the above technical solution, the first load includes a plurality of first resistors, and the plurality of first resistors are connected in parallel; the second load includes a plurality of second resistors connected in parallel.
Based on the further improvement of the technical scheme, the first resistor is a high-power precision resistor, wherein the resistance power is 50W, and the resistance precision is 1%.
Based on the further improvement of the technical scheme, the resistance precision of the second resistor is 10%.
Based on the further improvement of the technical scheme, the first switch and the second switch are both button switches.
Based on the further improvement of the technical scheme, the third switch is a self-resetting switch.
Compared with the prior art, the utility model has at least one of the following beneficial effects:
1. according to the utility model, different working states of the power supply are simulated through the first load, the second load and the second switch, then the power supply converter is controlled through the control circuit, and finally voltage and current are detected and detected through the ammeter and the voltmeter when the power supply converter works normally, so that the detection of the power supply converter is realized.
2. The power supply converter detection device provided by the utility model can detect the power supply converter through a relatively simple device, and is rapid and convenient.
In the utility model, the technical schemes can be mutually combined to realize more preferable combination schemes. Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the utility model, like reference numerals being used to refer to like parts throughout the several views.
Fig. 1 is a schematic structural diagram of a power converter detection device provided by the utility model.
Reference numerals:
1-an ammeter; 2-a first load; 3-a second load; 4-a second switch;
5-a first switch; 6-a third switch; 7-voltmeter; 8-indicator lights;
9-shunt resistance.
Detailed Description
The following detailed description of preferred embodiments of the utility model is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the utility model, are used to explain the principles of the utility model and are not intended to limit the scope of the utility model.
In one embodiment of the present utility model, a power converter detection apparatus is disclosed, as shown in fig. 1.
The detection device comprises a detection circuit, a control circuit and a voltmeter;
the detection circuit comprises an ammeter, a first load, a second load and a second switch, wherein the ammeter, the first load and the second load are connected in series, and the second switch is connected with the second load in parallel; one end of the detection circuit is connected to a current output port of the power converter, and the other end of the detection circuit is connected to a power negative electrode port of the power converter;
the control circuit comprises a first switch and a third switch, one end of the first switch is connected with an input power positive electrode port of the power converter, and the other end of the first switch is connected with one end of the third switch; the other end of the third switch is connected with a control signal port of the power converter;
one end of the voltmeter is connected with the output voltage sampling port of the power converter, and the other end of the voltmeter is connected with the power negative electrode port of the power converter.
Specifically, as shown in fig. 1, the control circuit includes a first switch 5 and a third switch 6. When the power converter is detected, one end of the first switch 5 is required to be connected with an input power anode port of the power converter, and when the first switch 5 is closed, the power converter is powered on; meanwhile, one end of the third switch 6 is connected with the other end of the first switch 5, the other end of the third switch 6 is connected with a control signal port of the power converter, and when the third switch 6 is closed, the control signal can control the power converter to start working.
Specifically, as shown in fig. 1, the detection circuit includes an ammeter 1, a first load 2, a second load 3, and a second switch 4. The ammeter 1, the first load 2 and the second load 3 are connected in series, and it is worth noting that the function of the ammeter 1 is to measure the current of a series circuit formed by the first load and the second load, and the position of the ammeter 1 can be any position of the series circuit.
When the second switch 4 is turned on, since the output power of the power converter is unchanged, in the detection circuit, the output current of the power converter sequentially passes through the first load 2 and the second load 3, so that the power converter is in a boost state, and at this time, the voltages at two ends of the first load 2 and the second load 3 are the output voltages of the power converter in the boost state; when the second switch 4 is closed, the second switch 4 shorts the second load 3, the output current of the power converter passes through the first load 2, and then the output current is directly communicated to the power negative electrode port of the power converter through the second switch 4, so that the power converter is in a current stabilizing stage, and the current is detected through the ammeter 1.
Specifically, as shown in fig. 1, one end of the voltmeter 7 is connected with an output voltage sampling port of the power converter, and the other end is connected with a power supply negative electrode port of the power converter, so that the voltage value measured by the voltmeter 7 is the output voltage of the power converter, and the state change of the output voltage of the power converter can be measured through the voltmeter 7.
Preferably, the first load includes a plurality of first resistors connected in parallel; the second load includes a plurality of second resistors connected in parallel.
Preferably, the first resistor is a high-power precision resistor, wherein the resistance power is 50W, and the resistance precision is 1%.
Preferably, the resistance accuracy of the second resistor is 10%.
Specifically, as shown in fig. 1, the first load 2 includes a plurality of first resistors R3-R7, and the load is simulated by connecting the plurality of first resistors in parallel, wherein the first resistor is a high-power precision resistor, the resistance power is 50W, and the resistance precision is 1%.
Meanwhile, the second load 3 includes a plurality of second resistors, and the load is simulated by connecting the plurality of second resistors in parallel, wherein the second resistors are resistors with common precision, and the precision of the resistors is 10%.
Preferably, the first switch and the second switch are both button switches.
Preferably, the third switch is a self-resetting switch.
Specifically, as shown in fig. 1, the first switch 5 and the second switch 4 are toggle switches, and it is understood that after the switch state of the toggle switch is adjusted, the adjusted switch state can be maintained all the time for maintaining the switch state.
Specifically, as shown in fig. 1, the third switch 6 is a self-resetting switch. It should be noted that, since the total power of the power converter is not changed, the power converter is not easy to be in a boost state or a steady-current state for a long time, and an instantaneous repeated detection mode is needed. The third switch 6 is a self-resetting switch, and when the switch is closed, the switch needs to be maintained in a closed state, and when the acting force for maintaining the closed state of the switch is lost, the switch can be automatically restored to an open state.
Preferably, the detection device further comprises a connection socket, and the detection circuit, the control circuit and the voltmeter are connected with the power converter through the connection socket.
Preferably, the input end of the 1 st interface of the connection socket is connected with a current output port of the power converter, and the output end is connected with one end of the detection circuit; the input end of the 7 th interface of the connecting socket is connected with the power negative electrode port of the power converter, and the output end of the 7 th interface of the connecting socket is connected with the other end of the detection circuit;
the input end of the 3 rd interface of the connecting socket is connected with the positive electrode port of the input power supply of the power supply converter, and the output end of the connecting socket is connected with one end of the first switch; the input end of the 4 th interface of the connecting socket is connected with the control signal port of the power converter, and the output end of the connecting socket is connected with the other end of the third switch;
the input end of the 6 th interface of the connecting socket is connected with the output voltage sampling port of the power converter, and the output end of the connecting socket is connected with one end of the voltmeter; the input end of the 7 th interface of the connecting socket is connected with the power negative electrode port of the power converter, and the output end of the 7 th interface of the connecting socket is connected with the other end of the voltmeter.
Specifically, as shown in fig. 1, it can be understood that the power converter has a dedicated detection socket, and each port of the power converter, such as a current output port, an input power positive port, a control signal port, an output voltage sampling port and a power negative port, can be obtained through the detection socket of the power converter. The ports of the power supply converter are connected with the detection circuit, the control circuit and the voltmeter through the connecting socket, so that the detection device is more convenient to detect and suitable for the power supply converter.
Specifically, as shown in fig. 1, a current output port of the power converter is connected with the ammeter 1 through a 1 st interface of the connection socket, and a power negative electrode port of the power converter is connected with the second load 3 through a 7 th interface of the connection socket; the positive power port of the power converter is connected with the first switch 5 through the 3 rd interface of the connecting socket, and the control signal port of the power converter is connected with the third switch 6 through the 4 th interface of the connecting socket; the output voltage sampling port of the power converter is connected with the voltmeter 7 through the 6 th interface of the connecting socket.
Preferably, the control circuit further comprises an indicator light;
one end of the indicator light is connected with the other end of the first switch, and the other end of the indicator light is connected with a power negative electrode port of the power converter.
Preferably, the control circuit further comprises a shunt resistor:
one end of the shunt resistor is connected with the other end of the first switch, and the other end of the shunt resistor is connected with one end of the indicator lamp.
Specifically, as shown in fig. 1, the control circuit includes an indicator lamp 8 and a shunt resistor 9, when the power converter can output voltage, the control circuit is in a working state, and the indicator lamp 8 is in an on state; when the power converter cannot output voltage, the first switch 5 may not be closed, or the third switch 6 may not be closed, and the indicator light is in a closed state. It will be appreciated that by means of the status of the indicator light 8, it can be determined whether the power converter is operating.
It will be appreciated that when the power converter is in operation, a large current may be generated, using the load resistor 9 for protecting the indicator light 8.
In practice, when detecting the boost state of the power converter, the first switch 5 is in the closed state, the second switch 4 is in the open state, the third switch 6 is pressed, and the boost state detection of the power converter is completed by reading the voltage value of the voltmeter 7 and the current value of the ammeter. It will be appreciated that when the voltmeter 7 shows a voltage range of 200v±50V, the ammeter shows 0.5a±0.1A, i.e. the power converter works acceptably in the boost state.
When the steady-flow state of the power converter is detected, the first switch 5 is in a closed state, the second switch 4 is in a closed state, the load is reduced at the moment, the third switch 6 is pressed for steady-flow state test, the voltage is read through the voltmeter 7, and the steady-flow value of the power converter is read through the ammeter 1. It will be appreciated that when the voltmeter shows 65v±10V, the ammeter shows 2a±0.1A, i.e., the power converter operates in a steady-current state as acceptable.
Compared with the prior art, the power converter detection device provided by the embodiment simulates different working states of the power converter through the first load, the second load and the second switch, then controls the power converter through the control circuit, and finally detects voltage and current when the power converter normally works through the ammeter and the voltmeter, so that the detection of the power converter is realized, the power converter can be detected through a relatively simple device, and the power converter detection device is rapid and convenient.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.
Claims (10)
1. The power converter detection device is characterized by comprising a detection circuit, a control circuit and a voltmeter;
the detection circuit comprises an ammeter, a first load, a second load and a second switch, wherein the ammeter, the first load and the second load are connected in series, and the second switch is connected with the second load in parallel; one end of the detection circuit is connected to a current output port of the power converter, and the other end of the detection circuit is connected to a power negative electrode port of the power converter;
the control circuit comprises a first switch and a third switch, one end of the first switch is connected with an input power positive electrode port of the power converter, and the other end of the first switch is connected with one end of the third switch; the other end of the third switch is connected with a control signal port of the power converter;
one end of the voltmeter is connected with the output voltage sampling port of the power converter, and the other end of the voltmeter is connected with the power negative electrode port of the power converter.
2. The device according to claim 1, further comprising a connection socket, wherein the detection circuit, the control circuit, and the voltmeter are connected to the power converter through the connection socket.
3. The detecting device according to claim 2, wherein an input end of the 1 st interface of the connection socket is connected to a current output port of the power converter, and an output end is connected to one end of the detecting circuit; the input end of the 7 th interface of the connecting socket is connected with the power negative electrode port of the power converter, and the output end of the 7 th interface of the connecting socket is connected with the other end of the detection circuit;
the input end of the 3 rd interface of the connecting socket is connected with the positive electrode port of the input power supply of the power supply converter, and the output end of the connecting socket is connected with one end of the first switch; the input end of the 4 th interface of the connecting socket is connected with the control signal port of the power converter, and the output end of the connecting socket is connected with the other end of the third switch;
the input end of the 6 th interface of the connecting socket is connected with the output voltage sampling port of the power converter, and the output end of the connecting socket is connected with one end of the voltmeter; the input end of the 7 th interface of the connecting socket is connected with the power negative electrode port of the power converter, and the output end of the 7 th interface of the connecting socket is connected with the other end of the voltmeter.
4. The detection device of claim 1, wherein the control circuit further comprises an indicator light;
one end of the indicator light is connected with the other end of the first switch, and the other end of the indicator light is connected with a power negative electrode port of the power converter.
5. The detection apparatus according to claim 4, wherein the control circuit further comprises a shunt resistor:
one end of the shunt resistor is connected with the other end of the first switch, and the other end of the shunt resistor is connected with one end of the indicator lamp.
6. The detection apparatus according to claim 1, wherein the first load includes a plurality of first resistors connected in parallel; the second load includes a plurality of second resistors connected in parallel.
7. The test device of claim 6, wherein the first resistor is a high power precision resistor, wherein the resistive power is 50W and the resistive precision is 1%.
8. The device of claim 6, wherein the second resistor has a resistance accuracy of 10%.
9. The device of any one of claims 1-8, wherein the first switch and the second switch are each a toggle switch.
10. The device of any one of claims 1-8, wherein the third switch is a self-resetting switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320262521.9U CN219574221U (en) | 2023-02-20 | 2023-02-20 | Power converter detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320262521.9U CN219574221U (en) | 2023-02-20 | 2023-02-20 | Power converter detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219574221U true CN219574221U (en) | 2023-08-22 |
Family
ID=87647560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320262521.9U Active CN219574221U (en) | 2023-02-20 | 2023-02-20 | Power converter detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219574221U (en) |
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2023
- 2023-02-20 CN CN202320262521.9U patent/CN219574221U/en active Active
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