CN217981632U - Power detection circuit of outdoor power supply inverter circuit - Google Patents
Power detection circuit of outdoor power supply inverter circuit Download PDFInfo
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- CN217981632U CN217981632U CN202222150893.0U CN202222150893U CN217981632U CN 217981632 U CN217981632 U CN 217981632U CN 202222150893 U CN202222150893 U CN 202222150893U CN 217981632 U CN217981632 U CN 217981632U
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Abstract
The utility model relates to a power detection circuit of an outdoor power supply inverter circuit and an outdoor power supply integrated device thereof, wherein the power detection circuit comprises a current sampling module, a CPU calculation control module, a voltage sampling module and a display module; the current sampling module is connected between the outdoor power supply inverter circuit and a power supply of the outdoor power supply inverter circuit and is used for collecting current input to the outdoor power supply inverter circuit to obtain sampling current; the voltage sampling module is connected with the output end of the power supply and used for collecting the voltage input to the outdoor power supply inverter circuit to obtain a sampling voltage; the CPU calculation control module is used for inputting the calculated power to the display module so as to display the power by the display module, wherein the power is calculated through sampling current and sampling voltage. The power detection circuit is simple, can safely and highly accurately detect the inverter output power of the outdoor power supply, and is displayed on the outdoor power supply display screen through the LCD.
Description
Technical Field
The utility model relates to an outdoor power supply technical field especially relates to an outdoor power supply inverter circuit's power detection circuitry and whole quick-witted equipment of outdoor power supply thereof.
Background
Some power detection circuits of the inverter circuits of the outdoor power supplies in the current market are not provided with power detection circuits, only have normal on-off signals, and cannot observe the magnitude of output power, so that the method is not preferable; some direct detection AC output power, such high voltage detection, is not very safe, requires an additional isolation circuit, and is costly. This method is also not very good.
Therefore, a new circuit architecture is needed to broaden the power detection circuit of the inverter circuit of the outdoor power supply, which is suitable for power detection of various inverter circuits of the outdoor power supply, and meanwhile, the cost is saved.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a power detection circuit of an outdoor power supply inverter circuit and an outdoor power supply complete machine device thereof aiming at the technical problems, the detection circuit is simple and high in precision, the detection circuit is additionally arranged at the DC front stage end of the outdoor power supply inverter circuit and the BMS main control display end of the outdoor power supply, the detection circuit can detect the inversion output power of the outdoor power supply safely and high in precision, the inversion output power is displayed on an outdoor power supply display screen through an LCD, and the circuit is simple, practical and low in cost.
A power detection circuit of an outdoor power supply inverter circuit comprises a current sampling module, a CPU calculation control module, a voltage sampling module and a display module;
the current sampling module is connected between the outdoor power supply inverter circuit and a power supply of the outdoor power supply inverter circuit and is used for collecting current input to the outdoor power supply inverter circuit to obtain sampling current;
the voltage sampling module is connected with the output end of the power supply and used for collecting the voltage input to the outdoor power supply inverter circuit to obtain a sampling voltage;
the CPU calculation control module is used for inputting the calculated power to the display module so as to display the power by the display module, wherein the power is calculated through the sampling current and the sampling voltage.
In one embodiment, the power detection circuit further comprises a current AD conversion module, and the current AD conversion module is respectively connected with the current sampling module and the CPU calculation control module;
the current AD conversion module is used for converting the sampling current to obtain conversion current and inputting the conversion current into the CPU calculation control module.
In one embodiment, the current sampling module includes a resistor, one end of the resistor is connected to the output terminal of the power supply, and the other end of the resistor is connected to the current AD conversion module.
In one embodiment, the current AD conversion module comprises an amplifier, an input end of the amplifier is connected with the current sampling module, and an output end of the amplifier is connected with the CPU computation control module.
In one embodiment, the CPU computation control module comprises a BMS chip.
In one embodiment, the voltage sampling module comprises a voltage regulation control chip model AS 7133.
In one embodiment, the display module comprises a liquid crystal display.
In one embodiment, the power detection circuit further comprises a power supply module, and the power supply module is connected with the power supply of the outdoor power supply inverter circuit and the CPU computation control module.
The outdoor power supply complete machine equipment comprises an outdoor power supply inverter circuit, an outdoor power supply inverter and a power detection circuit in any one of the embodiments.
In one embodiment, the power source to which the outdoor power source is inverted comprises a battery within the outdoor power source.
The power detection circuit comprises a current sampling module, a CPU calculation control module, a voltage sampling module and a display module; the current sampling module is connected between the outdoor power supply inverter circuit and a power supply of the outdoor power supply inverter circuit and is used for collecting current input to the outdoor power supply inverter circuit to obtain sampling current; the voltage sampling module is connected with the output end of the power supply and used for collecting the voltage input to the outdoor power supply inverter circuit to obtain a sampling voltage; the CPU calculation control module is used for inputting the calculated power to the display module so as to display the power by the display module, wherein the power is calculated through the sampling current and the sampling voltage.
Therefore, by providing the current sampling module and the voltage sampling module, the current and the voltage input to the outdoor power supply inverter circuit can be collected, and the CPU calculation control module can calculate the power input to the outdoor power supply inverter circuit based on the collected voltage and current and output to the display module, so that the power of the outdoor power supply inverter circuit is displayed by the display module. This power detection circuit through simple module setting, can realize outdoor power supply inverter circuit's detection and demonstration, increases such a power detection circuit at outdoor power supply inverter circuit's DC preceding stage end and outdoor power supply's BMS master control display end itself, just can be safe, the detection outdoor power supply contravariant output power of high accuracy to with power display on outdoor power supply display screen, this circuit is simple and practical, with low costs.
Drawings
FIG. 1 is a block diagram of a power detection circuit of an inverter circuit of an outdoor power supply according to an embodiment;
FIG. 2 is a schematic circuit diagram of power supply 10 in one embodiment;
FIG. 3 is a schematic diagram of the circuit connection of the current sampling module 301 in one embodiment;
fig. 4 is a schematic circuit connection diagram of the outdoor power inverter circuit 20 in one embodiment;
fig. 5 is a schematic circuit diagram of the current AD conversion module 302 according to an embodiment;
FIG. 6 is a schematic diagram of the circuit connection of the CPU calculation control module 303 in one embodiment;
fig. 7 is a schematic circuit connection diagram of the current AD conversion module 302 and the CPU calculation control module 303 in one embodiment;
FIG. 8 is a schematic diagram that illustrates circuitry of the voltage sampling module 304 in one embodiment;
fig. 9 is a schematic circuit diagram of the display module 305 according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description of the present invention will be made in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model provides an outdoor power supply inverter circuit's power detection circuitry. In one embodiment, as shown in fig. 1, a power detection circuit of an outdoor power inverter circuit includes a current sampling module 301, a CPU calculation control module 303, a voltage sampling module 304, and a display module 305. The current sampling module 301 is connected between the outdoor power inverter circuit 20 and the power supply 10 of the outdoor power inverter circuit, and is configured to collect a current input to the outdoor power inverter circuit 20 to obtain a sampled current; the voltage sampling module 304 is connected to the output end of the power supply 10, and is configured to collect a voltage input to the outdoor power supply inverter circuit 20 to obtain a sampled voltage; the CPU calculation control module 303 is configured to input the calculated power to the display module 305 to display the power by the display module 305, wherein the power is calculated by the sampling current and the sampling voltage.
It should be noted that the main inventive concept of the present invention is to provide a power detection circuit including a current sampling module 301, a CPU calculation control module 303, a voltage sampling module 304 and a display module 305 to obtain the power of the outdoor power inverter circuit 20 and display the power. The utility model provides a CPU calculates control module 303 is current computing equipment. Among the prior art, calculating through electric current and voltage and obtaining power and be conventional calculation mode, adopt the equipment that possesses calculation function to calculate and obtain power, the utility model discloses an innovative design does not lie in its computational process.
Therefore, by providing the current sampling module 301 and the voltage sampling module 304, the current and the voltage input to the outdoor power inverter circuit 20 can be collected, and the CPU calculation control module 303 can calculate the power input to the outdoor power inverter circuit 20 based on the collected voltage and current and output to the display module 305, so that the power of the outdoor power inverter circuit 20 is displayed by the display module 305. This power detection circuit through simple module setting, can realize outdoor power supply inverter circuit's detection and demonstration, increases such a power detection circuit at outdoor power supply inverter circuit's DC preceding stage end and outdoor power supply's BMS master control display end itself, just can detect outdoor power supply contravariant output power safe, high accuracy to with power display on outdoor power supply display screen, this circuit is simple and practical, with low costs.
In one embodiment, as shown in fig. 1, the power detection circuit further includes a current AD conversion module 302, and the current AD conversion module 302 is connected to the current sampling module 301 and the CPU computation control module 303 respectively; the current AD conversion module 302 is configured to convert the sampling current to obtain a conversion current, and input the conversion current into the CPU calculation control module 303.
Specifically, the current AD conversion module 302 calculates and converts the sampled current of the current sampling module 301 with high accuracy, and performs accurate calculation and detection of the current, and then sends the current to the CPU calculation control module 303.
In one embodiment, the current sampling module 301 includes a resistor, one end of the resistor is connected to the output terminal of the power supply 10, and the other end of the resistor is connected to the current AD conversion module 302.
Specifically, as shown in fig. 2, the power supply 10 is a BAT battery pack, BAT P + is a positive output terminal of the power supply 10, and BAT P-is a negative output terminal of the power supply 10. The circuit connections of the current sampling module 301 are shown in fig. 3. In FIG. 3, BAT P + is the positive output terminal of the power supply 10 and BATP-is the negative output terminal of the power supply 10. The current sampling module 301 includes a resistor RX 1. J4 denotes a common terminal. One end of the resistor RX1 is connected to the negative output terminal of the power supply 10, and the other end of the resistor RX1 is grounded. The voltage of the resistor RX1 can be collected through the common terminal J4, and then the sampling current is calculated. The circuit of the outdoor power inverter circuit 20 is shown in fig. 4. The BAT endpoint in fig. 3 is the same endpoint as the BAT endpoint in fig. 4.
In one embodiment, the current AD conversion module 302 includes an amplifier, an input terminal of the amplifier is connected to the current sampling module 301, and an output terminal of the amplifier is connected to the CPU calculation control module 303.
Specifically, the amplifier is a TL074 operational amplifier, and the circuit connection of the current AD conversion module 302 is as shown in fig. 5. J5 is a common terminal. The common terminal J5 corresponds to the common terminal J4. The voltages across the resistor RX1 at the common terminal J4 IN FIG. 3 are IN + and IN +, corresponding to the voltages across the resistor RX1 at the common terminal J5 IN FIG. 5 being IN + and IN +. The output of the TL074 operational amplifier is terminal 1. Endpoint 1 is connected to the CPU computation control module 303.
In one embodiment, the CPU computation control module comprises a BMS chip.
Specifically, as shown in fig. 6, the BMS chip is an IC-CI chip. The I-AD connection of the IC-CI chip is terminal 1 in FIG. 5, i.e., receives the output current of the TL074 operational amplifier. The circuit connection between the current AD conversion module 302 and the CPU calculation control module 303 is shown in fig. 7.
The CPU calculation control module 303 performs summary calculation on the sampling current of the current AD conversion module 302 and the sampling voltage of the voltage sampling module 304, and calculates the online output power and the lean electric quantity of the DC-AC inverter module. The CPU calculation control module 303 shares the BMS chip of the external power supply, so that the cost is saved.
In one embodiment, the voltage sampling module 304 includes a voltage regulation control chip model AS 7133.
Specifically, the circuit connections of the voltage sampling module 304 are as shown in FIG. 8. The BAT terminal shown in fig. 8 is connected to the voltage output terminal of the power supply 10.
In one embodiment, the display module 305 includes a liquid crystal display.
Specifically, the display module 305 displays the online power of the DC-AC inverter module and the power consumption of the battery. The circuit connections of the display module 305 are shown in fig. 9. Wherein, the IC2 chip is the control chip of liquid crystal display, and liquid crystal display is LCD. As shown in fig. 6, the IC-CI chip is a BMS chip, and its pin 27 outputs DATA, which is power. As shown in fig. 9, pin 29 of the IC2 chip receives the power output by the IC-CI chip and displays the power through the LCD.
In one embodiment, as shown in fig. 1, the power detection circuit further includes a power supply module 306, and the power supply module 306 is connected to the power supply 10 of the outdoor power inverter circuit and the CPU calculation control module 303.
Specifically, the power supply module 306 supplies power to the power supply 10, so as to ensure the reliability of the power supply of each circuit.
The utility model also provides an outdoor power complete machine equipment. As shown in fig. 1, the outdoor power supply complete equipment includes an outdoor power supply inverter circuit 20, an outdoor power supply inverter power supply 10, and a power detection circuit according to any of the above embodiments.
In one embodiment, the outdoor power source inverted power source 10 includes a battery within the outdoor power source.
In particular, a battery within the outdoor power supply provides all of the energy source.
Above-mentioned outdoor power supply inverter circuit 20's power detection circuit enables the more direct demonstration contravariant output power of outdoor power supply, can also combine a whole with outdoor power supply's BMS, and safe and reliable, the precision is high, knows the power consumption condition of outdoor power supply complete machine in real time, and is with low costs, creates the business opportunity and brings economic value for the user.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The power detection circuit of the outdoor power supply inverter circuit is characterized by comprising a current sampling module, a CPU calculation control module, a voltage sampling module and a display module;
the current sampling module is connected between the outdoor power supply inverter circuit and a power supply of the outdoor power supply inverter circuit and is used for collecting current input to the outdoor power supply inverter circuit to obtain sampling current;
the voltage sampling module is connected with the output end of the power supply and used for collecting the voltage input to the outdoor power supply inverter circuit to obtain a sampling voltage;
the CPU calculation control module is used for inputting the calculated power to the display module so as to display the power by the display module, wherein the power is calculated through the sampling current and the sampling voltage.
2. The power detection circuit according to claim 1, further comprising a current AD conversion module, wherein the current AD conversion module is connected to the current sampling module and the CPU calculation control module respectively;
the current AD conversion module is used for converting the sampling current to obtain conversion current and inputting the conversion current into the CPU calculation control module.
3. The power detection circuit according to claim 2, wherein the current sampling module comprises a resistor, one end of the resistor is connected to the output terminal of the power supply, and the other end of the resistor is connected to the current AD conversion module.
4. The power detection circuit according to claim 2, wherein the current AD conversion module comprises an amplifier, an input end of the amplifier is connected with the current sampling module, and an output end of the amplifier is connected with the CPU calculation control module.
5. The power detection circuit of claim 1, wherein the CPU computational control module comprises a BMS chip.
6. The power detection circuit of claim 1, wherein the voltage sampling module comprises a regulator control chip model AS 7133.
7. The power detection circuit of claim 1, wherein the display module comprises a liquid crystal display.
8. The power detection circuit of claim 1, further comprising a power supply module, wherein the power supply module is connected to the power supply of the outdoor power inverter circuit and the CPU computation control module.
9. An outdoor power supply complete equipment, characterized in that the outdoor power supply complete equipment comprises an outdoor power supply inverter circuit and a power supply for inverting the outdoor power supply, and a power detection circuit of any one of the above claims 1-8.
10. The outdoor power supply complete machine equipment as claimed in claim 9, wherein the power supply for the outdoor power supply inverter comprises a battery in the outdoor power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222150893.0U CN217981632U (en) | 2022-08-16 | 2022-08-16 | Power detection circuit of outdoor power supply inverter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222150893.0U CN217981632U (en) | 2022-08-16 | 2022-08-16 | Power detection circuit of outdoor power supply inverter circuit |
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| Publication Number | Publication Date |
|---|---|
| CN217981632U true CN217981632U (en) | 2022-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222150893.0U Active CN217981632U (en) | 2022-08-16 | 2022-08-16 | Power detection circuit of outdoor power supply inverter circuit |
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| Country | Link |
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| CN (1) | CN217981632U (en) |
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2022
- 2022-08-16 CN CN202222150893.0U patent/CN217981632U/en active Active
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