Electroscope verification power supply

Abstract

The utility model discloses a verification power supply of an electroscope. The electroscope verification power supply comprises a housing, and a battery module, an AC / DC buck-boost module, an AC / DC switching module and an electroscope jack which are disposed in the housing. The battery module is electrically connected with the AC / DC buck-boost module and the AC / DC switching module. The AC-DC buck-boost module comprises an AC buck-boost circuit, a DC buck-boost circuit and a buck-boost control circuit; the output end of the buck-boost control circuit is electrically connected with the input end of the AC buck-boost circuit and the input end of the DC buck-boost circuit. The AC-DC switching module is electrically connected with the AC boost-buck circuit and the DC boost-buck circuit. The voltage output end of the AC / DC switching module is electrically connected with the electroscope jack. The voltage of the battery is adjusted and converted, the alternating voltage and the direct voltage required by verification are output, the verification time of multiplied electrified equipment is shortened, and the safety and the accuracy of electricity verification are improved.

Description

Technical Field

[0001] This utility model relates to the field of power system technology, and in particular to a power supply for verifying voltage detectors. Background Technology

[0002] Electrical equipment maintenance is a high-risk industry. Before maintenance, appropriate safety isolation measures must be implemented, and the equipment to be maintained must be tested for voltage to ensure it is not energized during the maintenance process. Voltage testing requires a voltage-rated and tested power supply that has passed rigorous testing. The live-dead-live principle must be followed: first, use the voltage tester on a verification power supply to verify its performance and ensure it is usable; then, use the voltage tester on the equipment under maintenance; finally, use the voltage tester on the verification power supply to confirm the voltage reading is correct and its performance is verified, thus ensuring the equipment is not energized. Traditional live-line testing methods require a power supply box or a low-voltage sine wave generator to verify the voltage tester's performance. Typically, the power supply box is far from the equipment being maintained, and the voltage in the power supply box is unstable, resulting in long testing times and inaccurate voltage readings. Using a low-voltage sine wave generator is bulky and inconvenient to carry on-site, adding extra workload to the voltage testing process. Utility Model Content

[0003] This invention provides a voltage detector for verifying power supply, thereby shortening the verification time of live equipment on site and improving the safety and accuracy of voltage detection.

[0004] According to one aspect of this utility model, an electroscope verification power supply is provided, comprising:

[0005] The housing and the battery module, AC / DC step-up / step-down module, AC / DC switching module and electroscope socket located within the housing;

[0006] The battery module is electrically connected to the AC / DC step-up / step-down module and the AC / DC switching module, respectively;

[0007] The AC / DC buck-boost module includes an AC buck-boost circuit, a DC buck-boost circuit, and a buck-boost control circuit.

[0008] The output terminal of the buck-boost control circuit is electrically connected to the input terminal of the AC buck-boost circuit and the input terminal of the DC buck-boost circuit, respectively.

[0009] The AC / DC switching module is electrically connected to the AC step-up / step-down circuit and the DC step-up / step-down circuit, respectively; the voltage output terminal of the AC / DC switching module is electrically connected to the electroscope socket.

[0010] Optionally, the AC / DC switching module includes an AC / DC switching unit and an AC / DC switching relay; the AC / DC switching unit is electrically connected to the battery module, the AC / DC step-up / step-down module, and the AC / DC switching relay, respectively.

[0011] Optionally, the AC / DC switching unit includes an AC button and a DC button, and the AC / DC switching relay includes a first AC / DC switching relay and a second AC / DC switching relay;

[0012] The AC button includes a first switching terminal, a first contact, and a second contact;

[0013] The DC button includes a second switching terminal, a third contact, and a fourth contact;

[0014] Both the first end of the first switching terminal and the first end of the second switching terminal are electrically connected to the negative terminal of the battery module;

[0015] The second end of the first switching terminal is electrically connected to the first contact or the second contact; the second end of the second switching terminal is electrically connected to the third contact or the fourth contact;

[0016] The first end of the first contact is connected in series with the first end of the fourth contact; the second end of the first contact is connected to the first input terminal of the first AC / DC switching relay.

[0017] The first end of the second contact and the first end of the third contact are connected in series; the second end of the third contact is connected to the first input terminal of the second AC / DC switching relay.

[0018] The second end of the fourth contact and the second end of the second contact are both electrically connected to the positive electrode of the battery module.

[0019] Optionally, the first AC / DC switching relay includes a first coil and a first normally open contact; the second AC / DC switching relay includes a second coil and a second normally open contact.

[0020] The second end of the first contact is connected to the first input end of the first coil;

[0021] The second end of the third contact is connected to the first input end of the second coil;

[0022] The second input terminal of the first coil and the second input terminal of the second coil are electrically connected to the negative terminal of the battery module;

[0023] The first end of the first normally open contact is electrically connected to the output end of the AC step-up / step-down circuit, and the first voltage output end of the first normally open contact is electrically connected to the electroscope socket.

[0024] The first end of the second normally open contact is electrically connected to the output end of the DC step-up / step-down circuit, and the second voltage output end of the second normally open contact is electrically connected to the electroscope socket.

[0025] Optionally, the power supply for the voltage detector further includes a power detection module and a power display module. The input terminal of the power detection module is electrically connected to the positive terminal of the battery module, and the output terminal of the power detection module is electrically connected to the input terminal of the power display module.

[0026] Optionally, the voltage detector verification power supply further includes a voltage detection module and a voltage display module. The input terminal of the voltage detection module is electrically connected to the voltage output terminal of the AC / DC switching module, and the output terminal of the voltage detection module is electrically connected to the input terminal of the voltage display module.

[0027] Optionally, the power display module and the voltage display module are integrated.

[0028] Optionally, the power supply for the voltage detector further includes a power switch, which is located between the battery module and the AC / DC step-up / step-down module.

[0029] Optionally, the power supply for the electroscope also includes a charging management module, the output of which is electrically connected to the receiver of the battery module.

[0030] Optionally, the power supply for the voltage detector also includes a power adapter, the input of which is connected to an external power source, and the output of which is electrically connected to the input of the charging management module.

[0031] The technical solution of this utility model embodiment provides a voltage detector verification power supply. The power supply includes a housing and within the housing a battery module, an AC / DC step-up / step-down module, an AC / DC switching module, and a voltage detector socket. The battery module is electrically connected to both the AC / DC step-up / step-down module and the AC / DC switching module. The AC / DC step-up / step-down module includes an AC step-up / step-down circuit, a DC step-up / step-down circuit, and a step-up / step-down control circuit. The output terminal of the step-up / step-down control circuit is electrically connected to both the input terminals of the AC and DC step-up / step-down circuits. The AC / DC switching module is electrically connected to both the AC and DC step-up / step-down circuits. The voltage output terminal of the AC / DC switching module is electrically connected to the voltage detector socket. This allows for the regulation and conversion of the battery voltage, outputting the required AC and DC voltages for verification, shortening the verification time for live equipment, and improving the safety and accuracy of voltage detection.

[0032] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A schematic diagram of the structure of a power supply for verifying an electroscope is provided for an embodiment of this utility model;

[0035] Figure 2 A schematic diagram of another voltage detector verification power supply provided in an embodiment of this utility model. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0037] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0038] Figure 1 A schematic diagram of the structure of a verification power supply for an electroscope is provided for an embodiment of this utility model, as shown below. Figure 1As shown, the power supply for the electroscope verification includes: a housing 101 and a battery module 102, an AC / DC step-up / step-down module 103, an AC / DC switching module 104, and an electroscope socket 105 located within the housing 101; the battery module 102 is electrically connected to the AC / DC step-up / step-down module 103 and the AC / DC switching module 104 respectively; the AC / DC step-up / step-down module 103 includes an AC step-up / step-down circuit 1031, a DC step-up / step-down circuit 1032, and a step-up / step-down control circuit 1033; the output terminal of the step-up / step-down control circuit 1033 is electrically connected to the input terminals of the AC step-up / step-down circuit 1031 and the DC step-up / step-down circuit 1032 respectively; the AC / DC switching module 104 is electrically connected to the AC step-up / step-down circuit 1031 and the DC step-up / step-down circuit 1032 respectively; the voltage output terminal of the AC / DC switching module 104 is electrically connected to the electroscope socket 105.

[0039] The casing 101 of the voltage detector power supply includes a battery module 102, an AC / DC step-up / step-down module 103, an AC / DC switching module 104, and a voltage detector socket 105. The battery module 102 can be a rechargeable battery, preferably a polymer rechargeable battery, to prevent battery explosion or combustion during charging and use. The battery module 102 is electrically connected to the AC / DC step-up / step-down module 103 and the AC / DC switching module 104, respectively, to supply power to them. The AC / DC step-up / step-down module 103 includes an AC step-up / step-down circuit 1031, a DC step-up / step-down circuit 1032, and a step-up / step-down control circuit 1033. The output terminal of the step-up / step-down control circuit 1033 is electrically connected to the input terminal of the AC step-up / step-down circuit 1031 and the input terminal of the DC step-up / step-down circuit 1032, respectively. The input terminal is positive. The step-up / step-down control circuit 1033 controls the AC step-up / step-down circuit 1031 or the DC step-up / step-down circuit 1032 to boost or buck the battery voltage output by the rechargeable battery to the verification target voltage. The output voltage level can be adjusted and controlled by the step-up / step-down control circuit 1033. The AC / DC switching module 104 is electrically connected to both the AC step-up / step-down circuit 1031 and the DC step-up / step-down circuit 1032. When the AC / DC switching module 104 is in AC-start mode, the AC step-up / step-down circuit 1031 starts operating, while the DC step-up / step-down circuit 1032 is off. This ensures that the AC step-up / step-down circuit 1031 outputs AC voltage through the voltage output terminal of the AC / DC switching module 104. When the AC / DC switching module 104 is in DC-start mode, the DC step-up / step-down circuit 1032 starts operating, while the AC step-up / step-down circuit 1031 is off. This ensures that the DC step-up / step-down circuit 1032 outputs DC voltage through the voltage output terminal of the AC / DC switching module 104. This allows the target voltage to be verified and output to the voltage detector socket 105. The voltage detector can then be inserted into the voltage detector socket 105 for voltage testing, fully meeting the needs of on-site voltage testing without posing a risk to personal safety. The voltage detector can be periodically verified, meeting reliability requirements. Because the voltage detector verification power supply is integrated, its small size makes it easy to carry, simplifying the complex work process and improving work efficiency.

[0040] This utility model embodiment verifies the power supply via an electroscope, comprising a housing and within the housing a battery module, an AC / DC step-up / step-down module, an AC / DC switching module, and an electroscope socket. The battery module is electrically connected to both the AC / DC step-up / step-down module and the AC / DC switching module. The AC / DC step-up / step-down module includes an AC step-up / step-down circuit, a DC step-up / step-down circuit, and a step-up / step-down control circuit. The output terminal of the step-up / step-down control circuit is electrically connected to the input terminals of both the AC and DC step-up / step-down circuits. The AC / DC switching module is electrically connected to both the AC and DC step-up / step-down circuits. The voltage output terminal of the AC / DC switching module is electrically connected to the electroscope socket. This allows for the regulation and conversion of the battery voltage, outputting the required AC and DC voltages for verification, shortening the verification time for live equipment on-site, and improving the safety and accuracy of voltage testing.

[0041] Optional, continue to refer to Figure 1 The AC / DC switching module 104 includes an AC / DC switching unit 1041 and an AC / DC switching relay 1042; the AC / DC switching unit 1041 is electrically connected to the battery module 102, the AC / DC step-up / step-down module 103 and the AC / DC switching relay 1042 respectively.

[0042] The AC / DC switching module 104 includes an AC / DC switching unit 1041 and an AC / DC switching relay 1042. The AC / DC switching unit 1041 can be equipped with multiple switching buttons to switch between AC and DC voltage output, or vice versa, depending on usage requirements. The AC / DC switching module 104 can have two AC / DC switching relays 1042, corresponding to the AC step-up / step-down circuit 1031 and the DC step-up / step-down circuit 1032, respectively. This ensures that the voltage output from the battery module 102 is input to the AC step-up / step-down circuit 1031, and the AC voltage output from the AC step-up / step-down circuit 1031 is output to the voltage detector socket 105 via the AC / DC switching relays 1042; alternatively, the voltage output from the battery module 102 can be input to the DC step-up / step-down circuit 1032, and the DC voltage output from the DC step-up / step-down circuit 1032 is output to the voltage detector socket 105 via the AC / DC switching relays 1042, facilitating voltage detection.

[0043] Optional, continue to refer to Figure 1The AC / DC switching unit 1041 includes an AC button 105 and a DC button 106. The AC / DC switching relay 1042 includes a first AC / DC switching relay 107 and a second AC / DC switching relay 108. The AC button 105 includes a first switching terminal K1, a first contact Q1, and a second contact Q2. The DC button 106 includes a second switching terminal K2, a third contact Q3, and a fourth contact Q4. The first terminals of the first switching terminal K1 and the first terminals of the second switching terminal K2 are both electrically connected to the negative terminal of the battery module 102. The second terminal of the first switching terminal K1 is connected to the first contact Q1. Alternatively, the second contact Q2 is electrically connected; the second end of the second switching terminal K2 is electrically connected to the third contact Q3 or the fourth contact Q4; the first end of the first contact Q1 is connected in series with the first end of the fourth contact Q4; the second end of the first contact Q1 is connected to the first input terminal of the first AC / DC switching relay 107; the first end of the second contact Q2 and the first end of the third contact Q3 are connected in series; the second end of the third contact Q3 is connected to the first input terminal of the second AC / DC switching relay 108; the second end of the fourth contact Q4 and the second end of the second contact Q2 are both electrically connected to the positive terminal of the battery module 102.

[0044] The AC / DC switching unit 1041 includes an AC button 105 and a DC button 106. Both buttons are self-resetting buttons, each with a normally open contact and a normally closed contact, and the two contacts are independent of each other. The AC button 105 and DC button 106 are interlocked. For example, when the first contact Q1 is a normally closed contact, it is electrically connected to the first switching terminal K1; the second contact Q2 is a normally open contact; the third contact Q3 is a normally closed contact and is electrically connected to the second switching terminal K2; and the fourth contact Q4 is a normally open contact. The first switching terminal K1 and the second switching terminal K2 may include indicator lights, and the colors of the indicator lights can be different to distinguish between AC and DC. The first end of the first contact Q1 is connected in series with the first end of the fourth contact Q4, the first end of the second contact Q2 is connected in series with the first end of the third contact Q3, the second end of the first contact Q1 is connected to the first input terminal of the first AC / DC switching relay 107, the second end of the third contact Q3 is connected to the first input terminal of the second AC / DC switching relay 108, and the second end of the fourth contact Q4 and the second end of the second contact Q2 are both electrically connected to the battery module 102. At this time, the AC / DC switching module 104 is in the off state. The target voltage for voltage testing is set in advance according to actual needs. When the second terminal of the first switching terminal K1 is electrically connected to the output terminal of the second contact Q2, the second terminal of the second switching terminal K2 is electrically connected to the output terminal of the third contact Q3, the first terminal of the first switching terminal K1 and the first terminal of the second switching terminal K2 are both electrically connected to the negative terminal of the battery module 102, the second terminal of the third contact Q3 is connected to the first input terminal of the second AC / DC switching relay 108, and the second input terminal of the second AC / DC switching relay 108 is electrically connected to the negative terminal of the battery module 102, the second AC / DC switching relay 108 is in the conducting state. The step-up / step-down control circuit 1033 controls the DC voltage output by the DC step-up / step-down circuit 1032, and outputs it to the voltage tester socket 105 through the second AC / DC switching relay 108. When the second end of the first switching terminal K1 is electrically connected to the output terminal of the first contact Q1, the second end of the second switching terminal K2 is electrically connected to the output terminal of the fourth contact Q4, the first end of the first switching terminal K1 and the first end of the second switching terminal K2 are both electrically connected to the negative terminal of the battery module 102, the second end of the first contact Q1 is connected to the first input terminal of the first AC / DC switching relay 107, and the second input terminal of the first AC / DC switching relay 107 is electrically connected to the negative terminal of the battery module 102, the first AC / DC switching relay 107 is in the conducting state. The step-up / step-down control circuit 1033 controls the AC voltage output by the AC step-up / step-down circuit 1031, and outputs it to the voltage detector socket 105 through the first AC / DC switching relay 107.When the second terminal of the first switching terminal K1 is electrically connected to the output terminal of the first contact Q1 and the second terminal of the second switching terminal K2 is electrically connected to the output terminal of the third contact Q3, the AC or DC voltage output by the AC step-up / step-down circuit 1031, the DC step-up / step-down circuit 1032, and the step-up / step-down control circuit 1033 is automatically cut off. Alternatively, when the second terminal of the first switching terminal K1 is electrically connected to the output terminal of the second contact Q2 and the second terminal of the second switching terminal K2 is electrically connected to the output terminal of the fourth contact Q4, the AC step-up / step-down circuit 1031 and the DC step-up / step-down circuit 1032 do not output voltage.

[0045] Optional, continue to refer to Figure 1 The first AC / DC switching relay 107 includes a first coil JK1 and a first normally open contact P1; the second AC / DC switching relay 108 includes a second coil JK2 and a second normally open contact P2; the second end of the first contact Q1 is connected to the first input end of the first coil JK1; the second end of the third contact Q3 is connected to the first input end of the second coil JK2; the second input ends of the first coil JK1 and the second input ends of the second coil JK2 are electrically connected to the negative terminal of the battery module 102; the first end of the first normally open contact P1 is electrically connected to the output end of the AC step-up / step-down circuit 1031, and the first voltage output end of the first normally open contact P1 is electrically connected to the electroscope socket 105; the first end of the second normally open contact P2 is electrically connected to the output end of the DC step-up / step-down circuit 1032, and the second voltage output end of the second normally open contact P2 is electrically connected to the electroscope socket 105.

[0046] The first AC / DC switching relay 107 includes a first coil JK1 and a first normally open contact P1, and the second AC / DC switching relay 108 includes a second coil JK2 and a second normally open contact P2. The first input terminal is positive and the second input terminal is negative. When the second terminal of the first switching terminal K1 is electrically connected to the output terminal of the second contact Q2, the second terminal of the second switching terminal K2 is electrically connected to the output terminal of the third contact Q3, the first terminal of the first switching terminal K1 and the first terminal of the second switching terminal K2 are both electrically connected to the negative terminal of the battery module 102, the second terminal of the third contact Q3 is connected to the first input terminal of the second AC / DC switching relay 108, and the second input terminal of the second AC / DC switching relay 108 is electrically connected to the negative terminal of the battery module 102, current flows through the second coil JK2. The electromagnetic force will cause the second normally open contact P2 to close. The DC voltage output from the output terminal of the DC step-up / step-down circuit 1032 is output to the electroscope socket 105 through the closed second normally open contact P2.

[0047] When the second end of the first switching terminal K1 is electrically connected to the output terminal of the first contact Q1, the second end of the second switching terminal K2 is electrically connected to the output terminal of the fourth contact Q4, the first end of the first switching terminal K1 and the first end of the second switching terminal K2 are both electrically connected to the negative terminal of the battery module 102, the second end of the first contact Q1 is connected to the first input terminal of the first AC / DC switching relay 107, and the second input terminal of the first AC / DC switching relay 107 is electrically connected to the negative terminal of the battery module 102, at this time, current flows through the first coil JK1, and the electromagnetic force will cause the first normally open contact P1 to close. The AC voltage output from the output terminal of the AC step-up / step-down circuit 1031 is output to the electroscope socket 105 through the closed first normally open contact P1.

[0048] Optional, continue to refer to Figure 1 The power supply for the voltage detector also includes a power detection module 109 and a power display module 110. The input terminal of the power detection module 109 is electrically connected to the positive terminal of the battery module 102, and the output terminal of the power detection module 109 is electrically connected to the input terminal of the power display module 110.

[0049] The voltage detector verification power supply is also equipped with a power detection module 109 and a power display module 110. The power detection module 109 is electrically connected to the positive terminal of the battery module 102 and can detect the real-time power level of the battery module 102. The power display module 110 is electrically connected to the power detection module 109 and can display the real-time power level of the battery module 102, making it convenient for users to check the voltage detector verification power supply and ensuring voltage testing needs.

[0050] Optional, continue to refer to Figure 1 The voltage detector verification power supply also includes a voltage detection module 111 and a voltage display module 112. The input terminal of the voltage detection module 111 is electrically connected to the voltage output terminal of the AC / DC switching module 104, and the output terminal of the voltage detection module 111 is electrically connected to the input terminal of the voltage display module 112.

[0051] The verification power supply of the verifier is also equipped with a voltage detection module 111 and a voltage display module 112. The voltage detection module 111 detects the voltage value output by the verification power supply in real time. The voltage detection module 111 is electrically connected to the voltage display module 112, which displays the output voltage value in real time. This allows users to check whether the output voltage value meets the verification target voltage. The verification target voltage can be set in advance according to actual usage requirements, allowing users to check the output voltage in real time, ensuring that the output voltage value meets the usage requirements, and improving the accuracy of voltage verification.

[0052] Optional, Figure 2 A schematic diagram of another voltage detector verification power supply provided in this embodiment of the present invention is shown below. Figure 2 As shown, the power display module 110 and the voltage display module 112 are integrated, which simplifies the manufacturing process. By integrating the power display module 110 and the voltage display module 112 together, power and voltage can be displayed simultaneously, making it convenient for users to view.

[0053] Optional, continue to refer to Figure 1 and Figure 2 The power supply for the voltage detector also includes a power switch K3, which is located between the battery module 102 and the AC / DC step-up / step-down module 103.

[0054] The voltage detector verification power supply is also equipped with a power switch K3, which can be installed in the housing 101. When the power switch K3 is closed, the battery module 102 outputs current and the voltage detector verification power supply starts working; when the power switch K3 is open, the battery module 102 has no circuit output and the voltage detector verification power supply does not start working.

[0055] Optional, continue to refer to Figure 1 and Figure 2 The power supply for the voltage detector also includes a charging management module 113, the output of which is electrically connected to the receiver of the battery module 102.

[0056] The voltage tester power supply is also equipped with a charging management module 113 located inside the housing 101. The output terminal of the charging management module 113 is electrically connected to the receiving terminal of the battery module 102. The charging management module 113 includes a charging management circuit, which manages the charging of the battery module 102. Based on the battery charge and charging voltage in the battery module 102, the charging voltage and charging current are controlled to avoid overcharging, which could cause performance degradation or damage to the battery module 102.

[0057] Optional, continue to refer to Figure 1 and Figure 2 The power supply for the electroscope also includes a power adapter 114, the input of which is connected to an external power source, and the output of which is electrically connected to the input of the charging management module 113.

[0058] The voltage detector verification power supply also includes a power adapter 114, which is electrically connected to both an external power source and a charging management module 113. The output of the charging management module 113 is electrically connected to the receiving end of the battery module 102. The power adapter 114 is matched with the battery module 102. The external power source can be 220V 50Hz. After rectification by the power adapter 114, the output is a DC power source of the voltage level required for charging the battery module 102. This enables the external power source to provide charging power to the battery module 102 in the voltage detector verification power supply, ensuring that the battery module 102 has sufficient power, reducing the time spent searching for a live power source on site, shortening the verification operation time, and improving the convenience of maintenance.

[0059] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A power supply for verifying an electroscope, characterized in that, include: The housing and the battery module, AC / DC step-up / step-down module, AC / DC switching module and electroscope socket located within the housing; The battery module is electrically connected to the AC / DC step-up / step-down module and the AC / DC switching module, respectively; The AC / DC step-up / step-down module includes an AC step-up / step-down circuit, a DC step-up / step-down circuit, and a step-up / step-down control circuit; the output terminal of the step-up / step-down control circuit is electrically connected to the input terminal of the AC step-up / step-down circuit and the input terminal of the DC step-up / step-down circuit, respectively. The AC / DC switching module is electrically connected to the AC step-up / step-down circuit and the DC step-up / step-down circuit, respectively; the voltage output terminal of the AC / DC switching module is electrically connected to the electroscope socket.

2. The voltage detector verification power supply according to claim 1, characterized in that, The AC / DC switching module includes an AC / DC switching unit and an AC / DC switching relay; the AC / DC switching unit is electrically connected to the battery module, the AC / DC step-up / step-down module, and the AC / DC switching relay, respectively.

3. The voltage detector verification power supply according to claim 2, characterized in that, The AC / DC switching unit includes an AC button and a DC button, and the AC / DC switching relay includes a first AC / DC switching relay and a second AC / DC switching relay. The AC button includes a first switching terminal, a first contact, and a second contact; The DC button includes a second switching terminal, a third contact, and a fourth contact; Both the first end of the first switching terminal and the first end of the second switching terminal are electrically connected to the negative terminal of the battery module; The second end of the first switching terminal is electrically connected to the first contact or the second contact; the second end of the second switching terminal is electrically connected to the third contact or the fourth contact; The first end of the first contact is connected in series with the first end of the fourth contact; the second end of the first contact is connected to the first input terminal of the first AC / DC switching relay. The first end of the second contact and the first end of the third contact are connected in series; the second end of the third contact is connected to the first input terminal of the second AC / DC switching relay. The second end of the fourth contact and the second end of the second contact are both electrically connected to the positive electrode of the battery module.

4. The voltage detector verification power supply according to claim 3, characterized in that, The first AC / DC switching relay includes a first coil and a first normally open contact; the second AC / DC switching relay includes a second coil and a second normally open contact. The second end of the first contact is connected to the first input end of the first coil; The second end of the third contact is connected to the first input end of the second coil; The second input terminal of the first coil and the second input terminal of the second coil are electrically connected to the negative terminal of the battery module; The first end of the first normally open contact is electrically connected to the output end of the AC step-up / step-down circuit, and the first voltage output end of the first normally open contact is electrically connected to the electroscope socket. The first end of the second normally open contact is electrically connected to the output end of the DC step-up / step-down circuit, and the second voltage output end of the second normally open contact is electrically connected to the electroscope socket.

5. The voltage detector verification power supply according to claim 1, characterized in that, The power supply for the voltage detector also includes a power detection module and a power display module. The input terminal of the power detection module is electrically connected to the positive terminal of the battery module, and the output terminal of the power detection module is electrically connected to the input terminal of the power display module.

6. The voltage detector verification power supply according to claim 5, characterized in that, The voltage detector verification power supply also includes a voltage detection module and a voltage display module. The input terminal of the voltage detection module is electrically connected to the voltage output terminal of the AC / DC switching module, and the output terminal of the voltage detection module is electrically connected to the input terminal of the voltage display module.

7. The voltage detector verification power supply according to claim 6, characterized in that, The power display module and the voltage display module are integrated.

8. The voltage detector verification power supply according to claim 1, characterized in that, The power supply for the voltage detector also includes a power switch, which is located between the battery module and the AC / DC step-up / step-down module.

9. The voltage detector verification power supply according to claim 1, characterized in that, The power supply for the electroscope also includes a charging management module, the output of which is electrically connected to the receiving end of the battery module.

10. The voltage detector verification power supply according to claim 9, characterized in that, The power supply for the electroscope also includes a power adapter, the input of which is connected to an external power source, and the output of which is electrically connected to the input of the charging management module.

Images