功率检测装置

Abstract

本实用新型公开了一种功率检测装置，功率检测装置设置于被测装置的电源防爆箱内部，功率检测装置包括：电源模块的输入端与被测装置的上电端连接，电源模块的输出端与数据采样模块的上电端和无线通信模块的上电端连接；数据采样模块的第一采集端与被测装置的电源端连接，用于采集被测装置的电压参数；数据采样模块的第二采集端用于采集被测装置的电流参数；数据采样模块的数据发送端与无线通信模块的数据接收端连接。本实用新型的功率检测装置设置在被测装置的电源防爆箱内部，功率检测装置获得的被测装置的电功率通过无线通信模块进行无线传输，工作人员无需对电源防爆箱开盖即可获取被测装置的电功率数据，提升作业安全性。

Claims

1. A power detection device, characterized by, The power detection device is installed inside the explosion-proof power supply box of the device under test, and the power detection device includes: a power module, a data sampling module and a wireless communication module; The input terminal of the power module is connected to the power-on terminal of the device under test, and the output terminal of the power module is connected to the power-on terminal of the data sampling module and the power-on terminal of the wireless communication module. The power module is used to acquire the input voltage of the device under test and rectify and step down the voltage to supply power to the data sampling module and the wireless communication module; The first acquisition terminal of the data sampling module is connected to the power supply terminal of the device under test and is used to acquire the voltage parameters of the device under test; the second acquisition terminal of the data sampling module is used to acquire the current parameters of the device under test; the data sampling module is used to obtain the real-time power of the device under test based on the voltage parameters and the current parameters of the device under test. The data sending end of the data sampling module is connected to the data receiving end of the wireless communication module, and the wireless communication module is used to wirelessly transmit the real-time electrical power of the device under test.

2. The power detection device according to claim 1, wherein The power module includes: a first voltage conversion unit, an input filtering unit, a second voltage conversion unit, and an output filtering unit; The input terminal of the first voltage conversion unit is connected to the input terminal of the power supply module, and the output terminal of the first voltage conversion unit is connected to the input terminal of the input filter unit; the first voltage conversion unit is used to rectify and step down the input voltage of the device under test. The output terminal of the input filtering unit is connected to the input terminal of the second voltage conversion unit, and the input filtering unit is used for filtering. The output terminal of the second voltage conversion unit is connected to the input terminal of the output filter unit, and the feedback terminal of the second voltage conversion unit is connected to the output terminal of the power module; the second voltage conversion unit is used for voltage reduction. The output terminal of the output filter unit is connected to the output terminal of the power supply module, and the output filter unit is used for voltage regulation and filtering.

3. The power detection device of claim 2, wherein The input filtering unit includes: a first capacitor and a second capacitor; The first terminal of the first capacitor is connected to the second terminal of the second capacitor, the input terminal of the input filtering unit, and the output terminal of the input filtering unit; The second terminals of the first capacitor and the second capacitor are grounded.

4. The power detection device of claim 2, wherein The second voltage conversion unit includes: a voltage converter, a first resistor, a second resistor, and a third capacitor; The input terminal of the voltage converter is connected to the input terminal of the second voltage conversion unit. The first terminal of the first resistor is connected to the feedback terminal of the second voltage conversion unit. The second terminal of the first resistor is connected to the first terminal of the second resistor and the feedback terminal of the voltage converter. The second terminal of the second resistor is grounded. The first terminal of the third capacitor is connected to the bootstrap capacitor connection terminal of the voltage converter. The second terminal of the third capacitor is connected to the output terminal of the voltage converter. The output terminal of the voltage converter is connected to the output terminal of the second voltage conversion unit.

5. The power detection device of claim 2, wherein The output filtering unit includes: a first diode, a first inductor, and a fourth capacitor; The first terminal of the first diode is connected to the input terminal of the output filter unit and the first terminal of the first inductor; the second terminal of the first inductor is connected to the first terminal of the fourth capacitor and the output terminal of the output filter unit; the second terminal of the first diode and the second terminal of the fourth capacitor are grounded.

6. The power detection device of claim 1, wherein The data sampling module includes: a voltage acquisition unit, a current acquisition unit, and a data processing unit; The voltage acquisition unit is connected to the first acquisition terminal of the data sampling module, and the output terminal of the voltage acquisition unit is connected to the first data input terminal of the data processing unit. The voltage acquisition unit is used to acquire the voltage parameters of the device under test. The current acquisition unit's acquisition end is connected to the second acquisition end of the data sampling module, and the output end of the current acquisition unit is connected to the second data input end of the data processing unit. The current acquisition unit is used to acquire the current parameters of the device under test through a current transformer. The data transmission end of the data processing unit is connected to the data transmission end of the data sampling module. The data processing unit is used to obtain the real-time power of the device under test based on the voltage parameters and current parameters of the device under test.

7. The power detection device of claim 6, wherein The voltage acquisition unit includes: a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a fifth capacitor, and a sixth capacitor; The first voltage acquisition terminal of the voltage acquisition unit is connected to the first terminal of the third resistor and the first terminal of the fourth resistor; the second terminal of the fourth resistor is connected to the first terminal of the fifth capacitor and the first output terminal of the voltage acquisition unit; the second voltage acquisition terminal of the voltage acquisition unit is connected to the first terminal of the fifth resistor and the first terminal of the sixth resistor; the second terminal of the sixth resistor is connected to the first terminal of the sixth capacitor and the second output terminal of the voltage acquisition unit; the second terminal of the third resistor, the second terminal of the fifth capacitor, the second terminal of the fifth resistor, and the second terminal of the sixth capacitor are grounded.

8. The power detection device of claim 6, wherein, The current acquisition unit includes: a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a seventh capacitor, and an eighth capacitor; The first current acquisition terminal of the current acquisition unit is connected to the first terminal of the seventh resistor and the first terminal of the eighth resistor; the second terminal of the eighth resistor is connected to the first terminal of the seventh capacitor and the first output terminal of the current acquisition unit; the second current acquisition terminal of the current acquisition unit is connected to the first terminal of the ninth resistor and the first terminal of the tenth resistor; the second terminal of the tenth resistor is connected to the first terminal of the eighth capacitor and the second output terminal of the current acquisition unit; the second terminal of the seventh resistor, the second terminal of the seventh capacitor, the second terminal of the ninth resistor, and the second terminal of the eighth capacitor are grounded.

9. The power detection device of claim 6, wherein, The data processing unit includes: a data processor, a crystal oscillator, a ninth capacitor, a tenth capacitor, an eleventh capacitor, and a twelfth capacitor; The first end of the crystal oscillator is connected with the first end of the ninth capacitor and the crystal oscillator input end of the data processor, and the second end of the crystal oscillator is connected with the first end of the tenth capacitor and the crystal oscillator output end of the data processor; the second ends of the ninth capacitor and the tenth capacitor are grounded.

10. The power detection device of claim 1, wherein, The wireless communication module comprises a communication unit, a thirteenth capacitor, a key switch, an eleventh resistor and a light emitting diode; The data receiving end of the communication unit is connected with the data receiving end of the wireless communication module; The working indication end of the communication unit is connected with the first electrode of the light emitting diode, the second electrode of the light emitting diode is connected with the first end of the eleventh resistor, the second end of the eleventh resistor is connected with the power-on end of the wireless communication module; the reset end of the communication unit is connected with the first end of the key switch and the first end of the thirteenth capacitor; The second end of the key switch and the second end of the thirteenth capacitor are grounded.

Images