Power supply system for EMC test of parts

Abstract

The utility model provides a power supply system for a part EMC test, which comprises a flame-retardant ABS box, and the flame-retardant ABS box comprises a power supply end, three groups of control ends and three groups of display ends. The power supply end comprises a first battery, a second battery and a system power supply which are arranged in the flame-retardant ABS box in parallel, and the three control ends are arranged on the outer side face of the flame-retardant ABS box, connected with the first battery, the second battery and the system power supply respectively and used for controlling disconnection and connection of the first battery, the second battery or the system power supply. And the three groups of display terminals are arranged on the outer side surface of the flame-retardant ABS box, are respectively connected with the first battery, the second battery or the system power supply, and are used for displaying voltages and currents of the first battery, the second battery and the system power supply. According to the utility model, the problems of low test efficiency and potential safety hazards in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power supply equipment technical field especially relates to a spare EMC test power supply system. BACKGROUND

[0002] EMC (electromagnetic compatibility) is the ability that equipment or system meets the requirement operation in its electromagnetic environment and does not produce unbearable electromagnetic interference to any equipment in the environment, according to the requirement of domestic and foreign common spare EMC detection standard, spare EMC test power supply system usually is powered by 12V power supply system or 24V power supply.

[0003] Before the test, the test personnel will according to the power supply voltage of sample to take different number of batteries, series connection line, series connection joint, connecting wire, insulating tape, wire stripper, multimeter and other essential articles, in the testing process, because of rectification needs, often needs to disconnect, connect power supply for many times, because needs to replace different power supply for many times, every time test needs to carry multiple batteries, time-consuming and laborious, and the experiment efficiency is low, and because connects the battery every time, in order to guarantee safety, needs to wind insulating tape, and needs to remove the insulating tape when taking down, so long-term many times tear open and stick insulating tape both waste resources, also produce the risk of short circuit, there is very big security risk. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model provides a spare EMC test power supply system, which solves the problems of low test efficiency and security risks in the prior art.

[0005] According to the embodiment of the utility model, a spare EMC test power supply system includes flame-retardant ABS box, the flame-retardant ABS box includes power supply end, three control ends and three display ends;

[0006] The power supply end includes the first battery, the second battery and the system power supply which are arranged in parallel in the flame-retardant ABS box, the three control ends are arranged on the outer side of the flame-retardant ABS box, and are connected with the first battery, the second battery and the system power supply respectively, for controlling the disconnection and connection of the first battery, the second battery or the system power supply, the three display ends are arranged on the outer side of the flame-retardant ABS box, and are connected with the first battery, the second battery or the system power supply respectively, for displaying the voltage and current of the first battery, the second battery and the system power supply.

[0007] Preferably, the control end includes an air switch and a voltage output banana female head, the air switch and the voltage output banana female head are connected in series with the first battery, the second battery or the system power supply through the wire.

[0008] Preferably, the display end comprises a mechanical voltmeter and a mechanical ammeter, the mechanical ammeter is connected in series with the first battery, the second battery or the system power supply through a wire, and the mechanical voltmeter is connected in parallel with the first battery, the second battery or the system power supply through a wire.

[0009] Preferably, the air switch, the mechanical voltmeter and the mechanical ammeter are all pasted on the side of the flame-retardant ABS box.

[0010] Preferably, the positive pole of the first battery is connected with the negative pole of the second battery through a wire, the first battery and the second battery both adopt a 12V voltage source, and the system power supply is a 24V voltage source.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The flame-retardant ABS box used in the utility model can effectively protect the power supply end in the box from damage by external force, has good electrical insulation, avoids multiple transportation of the battery, the display end is pasted on the side of the flame-retardant ABS box, the safety hidden danger caused by the flying wire connection in the actual test is avoided, the time for searching the mechanical voltmeter and the mechanical ammeter is saved, the judgment of whether the voltage of the power supply end is sufficient and the judgment of whether the low-voltage component sample works normally are facilitated, and the test efficiency is improved; the design of the air switch of the control end improves the stability of the system, provides protection for the possible short circuit of the system, meanwhile, the voltage output banana female head which can be plugged and unplugged at any time reduces the risk of bare wire short circuit, is beneficial to the test personnel to quickly power the low-voltage component sample, and reduces the safety hidden danger of short circuit. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a power supply system structure diagram of the utility model embodiment.

[0014] Figure 2 It is a power supply system side view of the utility model embodiment.

[0015] Figure 3 It is a power supply system plan view of the utility model embodiment.

[0016] Mark: 10, first battery; 11, second battery; 12, flame-retardant ABS box; 13, first mechanical voltmeter; 14, first mechanical ammeter; 15, first air switch; 16, first voltage output banana female head; 17, second mechanical voltmeter; 18, second mechanical ammeter; 19, second air switch; 20, second voltage output banana female head; 21, third mechanical voltmeter; 22, third mechanical ammeter; 23, third air switch; 24, third voltage output banana female head; 25, connecting wire; 26, power supply end; 27, control end; 28, display end. DETAILED DESCRIPTION

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 - Figure 3 As shown in the figure, this utility model embodiment proposes a power supply system for EMC testing of components, including a flame-retardant ABS box 12, wherein the flame-retardant ABS box 12 includes a power supply terminal 26, three sets of control terminals 27 and three sets of display terminals 28;

[0019] The power supply includes a first battery 10, a second battery 11, and a system power supply arranged in parallel on the flame-retardant ABS box 12. The first battery 10, the second battery 11, and the system power supply are respectively a 12V voltage source, a 12V voltage source, and a 24V voltage source, and the first battery 10 and the second battery 11 are connected in series. Figure 3 As shown, this can power a 12V EMC component system independently or be combined to power a 24V EMC component system. The flame-retardant ABS box 12 can protect the power supply terminal inside the box from external damage and has good electrical insulation.

[0020] The three control terminals 27 are designated as the first control terminal, the second control terminal, and the third control terminal. The first control terminal includes a first air switch 15 and a first voltage output female connector 16. The second control terminal includes a second air switch 19 and a second voltage output female connector 20. The third control terminal includes a third air switch 23 and a third voltage output female connector 24. The first air switch 15, the second air switch 19, and the third air switch 23 are used to control the opening and closing of the first battery 10, the second battery 11, and the system power supply, respectively. The first voltage output female connector 16, the second voltage output female connector 20, and the third voltage output female connector 24 are... The three air switches, used for the output of the first battery 10, the second battery 11, and the system power supply, are all attached to the side of the flame-retardant ABS box 12. The design of the control-end air switch improves the stability of the system and provides protection against possible short circuits. The banana-shaped female connector for voltage output reduces the risk of bare wire short circuits, making it easier for testers to quickly power low-voltage component samples. This eliminates the hassle of wrapping power cords with insulating tape and reduces the risk of short circuits. Therefore, the design of the power supply end, control end, and display end not only meets the requirements of component EMC testing but also facilitates testers and improves the efficiency of component EMC testing.

[0021] The three groups of display terminals 28 are respectively first display terminal, second display terminal and third display terminal, and are all pasted on the side of the flame-retardant ABS box 12, the first display terminal includes the first mechanical voltmeter 13 and the first mechanical ammeter 14, the second display terminal includes the second mechanical voltmeter 17 and the second mechanical ammeter 18, and the third display terminal includes the third mechanical voltmeter 21 and the third mechanical ammeter 22, the three mechanical voltmeters are respectively used for displaying the voltage of the first battery 10, the second battery 11 and the system power supply, and the three mechanical ammeters are respectively used for displaying the current of the first battery 10, the second battery 11 and the system power supply, the setting of the ammeters and voltmeters avoids the safety hidden trouble caused by the flying wire connection in the actual test, saves the time for searching the voltmeter and ammeter, facilitates the judgment of whether the power supply terminal voltage is sufficient and the judgment of whether the low-voltage component sample works normally, and the mechanical design meets the test requirements and does not affect the test results of the component EMC.

[0022] With reference to Figure 1 and Figure 2 , the positive pole of the first battery 10 is connected with the positive poles of the first mechanical voltmeter 13 and the first mechanical ammeter 14 through the connecting wire 25, the negative pole of the first mechanical voltmeter 13 is connected with the negative pole of the first battery 10 through the connecting wire 25, the negative pole of the first mechanical ammeter 14 is connected with the positive pole of the input end of the first air switch 15 through the connecting wire 25, the negative pole of the input end of the first air switch 15 is connected with the negative pole of the first battery 10 through the connecting wire 25, and the positive and negative poles of the output end of the first air switch 15 are respectively connected with the positive and negative poles of the first voltage output banana female head 16 through the connecting wire 25.

[0023] With reference to Figure 1 and Figure 2 , the positive pole of the second battery 11 is connected with the positive poles of the third mechanical voltmeter 21 and the third mechanical ammeter 22 through the connecting wire 25, the negative pole of the third mechanical voltmeter 21 is connected with the negative pole of the second battery 11 through the connecting wire 25, the negative pole of the third mechanical ammeter 22 is connected with the positive pole of the input end of the third air switch 23 through the connecting wire 25, the negative pole of the input end of the third air switch 23 is connected with the negative pole of the second battery 11 through the connecting wire 25, and the positive and negative poles of the output end of the third air switch 23 are respectively connected with the positive and negative poles of the third voltage output banana female head 24 through the connecting wire 25.

[0024] With reference to Figure 1 and Figure 2The positive pole of the first battery 10 and the negative pole of the second battery 11 are connected through the connecting wire 25, the positive pole of the second battery 11 is connected with the positive pole of the second mechanical voltmeter 17 and the second mechanical ammeter 18 through the connecting wire 25, the negative pole of the second mechanical voltmeter 17 is connected with the negative pole of the first battery 10 through the connecting wire 25, the negative pole of the second mechanical ammeter 18 is connected with the positive pole of the input end of the second air switch 19 through the connecting wire 25, the negative pole of the input end of the second air switch 19 is connected with the negative pole of the first battery 10 through the connecting wire 25, and the positive pole and the negative pole of the output end of the second air switch 19 are connected with the positive pole and the negative pole of the second voltage output banana head 20 respectively through the connecting wire 25.

[0025] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all of them should be covered in the scope of the claims of the present application.

Claims

1. A power supply system for EMC testing of components, characterized in that: The fire-retardant ABS box comprises a power supply end, three groups of control ends and three groups of display ends; The power supply end comprises a first battery, a second battery and a system power supply which are arranged in parallel in the fire-retardant ABS box, the three control ends are arranged on the outer side of the fire-retardant ABS box and are connected with the first battery, the second battery and the system power supply respectively, for controlling the disconnection and connection of the first battery, the second battery or the system power supply, and the three groups of display ends are arranged on the outer side of the fire-retardant ABS box and are connected with the first battery, the second battery or the system power supply respectively, for displaying the voltage and current of the first battery, the second battery and the system power supply.

2. The power supply system for EMC test of parts according to claim 1, characterized in that: The control end comprises an air switch and a voltage output banana female head, and the air switch and the voltage output banana female head are connected with the first battery, the second battery or the system power supply in series through wires.

3. The power supply system for EMC test of parts according to claim 2, characterized in that: The display end comprises a mechanical voltmeter and a mechanical ammeter, the mechanical ammeter is connected with the first battery, the second battery or the system power supply in series through wires, and the mechanical voltmeter is connected with the first battery, the second battery or the system power supply in parallel through wires.

4. The power supply system for EMC test of parts according to claim 3, characterized in that: The air switch, the mechanical voltmeter and the mechanical ammeter are all pasted on the side of the fire-retardant ABS box.

5. The power supply system for EMC test of parts according to claim 1, characterized in that: The positive pole of the first battery is connected with the negative pole of the second battery through wires, the first battery and the second battery both adopt 12V voltage source, and the system power supply is a 24V voltage source.

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