CN220207770U - AC/DC debugging experiment table - Google Patents

Abstract

The utility model relates to an alternating current-direct current debugging experiment table which comprises an alternating current unit, an alternating current voltage unit and a direct current voltage unit, wherein the alternating current unit comprises a first voltage regulator B1 and a transformer BT, the alternating current voltage unit comprises a second voltage regulator B2, the direct current voltage unit comprises a third voltage regulator B3 and a rectifier D, the output end of the first voltage regulator B1 is connected with the input end of the transformer BT, one output end of the transformer BT is connected with a first alternating current output end, the other output end is connected with a second alternating current output end through a current limiting resistor R2, the other output end is connected with a third alternating current output end through a current limiting resistor R1, a shorting switch ZK1 is connected with the current limiting resistor R1 in parallel, and the output end of the third voltage regulator B3 is connected with the alternating current input end of the rectifier D. The use of the device reduces the complexity of debugging experiments on the outgoing electrical cabinet body, can carry out various experiments on one experiment table, is simple to debug, saves time and can improve the debugging efficiency.

Description

AC/DC debugging experiment table

Technical Field

The utility model relates to an electric experiment device, in particular to an alternating current-direct current debugging experiment table.

Background

After the assembly of the electrical cabinet body is completed, a manufacturer can carry out a debugging experiment on the electrical cabinet body, and the electrical cabinet body can be delivered after the debugging experiment is qualified. Different voltages and currents need to be input in the debugging process of the electric cabinet body so as to meet the requirements of rated voltage and rated current of elements in the cabinet body. At present, no debugging experiment table with adjustable current output and adjustable AC/DC voltage output is available in the market, so that the debugging is troublesome, the time is wasted, and the debugging efficiency cannot be improved.

Disclosure of Invention

The utility model aims to provide an AC/DC debugging experiment table which is simple to debug, saves time and can improve the debugging efficiency.

The technical scheme of the utility model is as follows: the alternating current unit comprises a first voltage regulator B1, a transformer BT, a current limiting resistor R1, a shorting switch ZK1 and a current limiting resistor R1, the alternating current unit comprises a second voltage regulator B2, the direct current unit comprises a third voltage regulator B3, a rectifier D and a voltage stabilizing capacitor C, two input ends of the first voltage regulator B1, the second voltage regulator B2 and the third voltage regulator B3 are respectively connected with a power input end L, N, two output ends of the first voltage regulator B1 are respectively connected with two input ends of the transformer BT, one output end of the transformer BT is connected with a first alternating current output end, the other output end of the transformer BT is connected with a second alternating current output end through the current limiting resistor R1 and is connected with a third alternating current output end through the current limiting resistor R2, the shorting switch ZK1 is connected with the current limiting resistor R1 in parallel, two output ends of the second voltage regulator B2 are respectively connected with two alternating current voltage output ends, two output ends of the third voltage regulator B3 are respectively connected with two alternating current input ends of the rectifier D, two output ends of the rectifier D are respectively connected with two direct current output ends of the rectifier D, and two direct current output ends of the rectifier D are respectively connected with two direct current stabilizing capacitors C.

The utility model has the technical effects that: the adjustable AC/DC voltage output and the current output are integrated into a whole, and different output modes are realized through the binding posts. Has the advantages of simplicity, convenience, practicability, various functions and convenience in moving and use. The use of the device reduces the complexity of debugging experiments on the outgoing electrical cabinet body, can carry out various experiments on one experiment table, is simple to debug, saves time and can improve the debugging efficiency.

The three functions of alternating voltage output, direct voltage output and alternating current output are integrated into a whole through the combination of elements such as a voltage regulator, a transformer, a rectifier bridge, a capacitor resistor and the like, so that one machine is multipurpose. Fills the gap of the multifunctional debugging experiment table in the market, can realize one machine with multiple purposes, can output 300V of adjustable alternating current voltage, can output 250V of adjustable direct current voltage, can provide two gears of 0-30A and 0-100mA for selection, and is very convenient to use.

Drawings

FIG. 1 is an electrical schematic diagram of an embodiment of the present utility model;

fig. 2 is a schematic view of a three-dimensional structure of a laboratory bench according to an embodiment of the present utility model.

Description of the embodiments

As shown in fig. 1 and 2, a double-pole single-throw switch K1 is arranged between two input ends of a first voltage regulator B1 and a power input end L, N, a double-pole single-throw switch K2 is arranged between two input ends of a second voltage regulator B2 and a power input end L, N, a double-pole single-throw switch K3 is arranged between two input ends of a third voltage regulator B3 and a power input end L, N, an ammeter a is connected in series between a current limiting resistor R1 and a second alternating current output end, a milliamp meter mA is connected in series between the current limiting resistor R2 and a third alternating current output end, an alternating current voltmeter V1 is connected in parallel between two output ends of the second voltage regulator B2, a double-pole single-throw switch ZK2 is arranged between two output ends of the second voltage regulator B2 and two alternating current output ends, a double-pole single-throw switch ZK3 is arranged between two direct current output ends of the rectifier D and two direct current output ends of the rectifier D.

The experiment table further comprises an experiment table body 1, a transformer BT, a current limiting resistor R1, a current limiting resistor R2, a rectifier D and a voltage stabilizing capacitor C are respectively arranged inside the experiment table body 1, a mA meter A, an AC voltmeter V1, a DC voltmeter V2, a short circuit switch ZK1, a double-pole single-throw switch K2, a double-pole single-throw switch K3, a double-pole single-throw switch ZK2 and a double-pole single-throw switch ZK3 are respectively arranged on an inclined panel 11 at the top of the experiment table body 1, a socket XS connected with a power input end L, N is further arranged on the inclined panel 11 at the top of the experiment table body 1, binding post D1, D2 and D3 connected with a first AC current output end, a second AC current output end and a third AC current output end respectively, binding post D4 and D5 connected with two AC voltage output ends, binding post voltage regulators D6 and D7 connected with two DC voltage output ends respectively, a B1, a B2 and a B3 body are respectively arranged in the inclined panel 11 at the top of the experiment table 1 and the top of the experiment table body is exposed from the top of the upper side of the experiment table body and the upper surface of the knob body is respectively.

Rectifier D is a single-phase full-wave rectifier bridge rated for 10A.

The first voltage regulator B1, the second voltage regulator B2 and the third voltage regulator B3 are single-phase manual voltage regulators with the capacity larger than 500VA respectively.

The transformer BT is a single-phase alternating-current transformer with an input voltage of 220V and an output voltage of 6V, and the capacity of the transformer BT is larger than 500VA.

The current limiting resistor R1 is a wire-wound resistor with the power of 200W and the resistance value of 0.5 ohm, and the current limiting resistor R2 is a wire-wound resistor with the power of 20W and the resistance value of 60 ohm.

The rated current of the shorting switch ZK1 is 32A.

The mA range is 0-100mA.

The measuring range of the ammeter A is 0-30A.

The range of the alternating-current voltmeter V1 is 0-300V.

The range of the direct current voltmeter V2 is 0-250V.

The voltage withstand of the regulated capacitor C was 500V and the capacity was 2200. Mu.F.

The rated currents of the double-pole single-throw switch ZK2 and the double-pole single-throw switch ZK3 are 6A respectively.

The alternating current output of the experiment table is reduced by a transformer through the voltage output by the voltage regulator, and finally currents with different magnitudes are output through resistors with different resistance values. The output of the alternating voltage is directly regulated by a voltage regulator. The direct-current voltage output is that the voltage regulated by the voltage regulator is rectified into direct current through the rectifier bridge, and the direct-current voltage is output after capacitive filtering.

Claims (8)

1. The alternating current-direct current debugging experiment table comprises an alternating current unit, an alternating current voltage unit and a direct current voltage unit, and is characterized in that: the alternating current unit comprises a first voltage regulator B1, a transformer BT, a current limiting resistor R1, a short circuit switch ZK1 and a current limiting resistor R1, the alternating current voltage unit comprises a second voltage regulator B2, the direct current voltage unit comprises a third voltage regulator B3, a rectifier D and a voltage stabilizing capacitor C, two input ends of the first voltage regulator B1, the second voltage regulator B2 and the third voltage regulator B3 are respectively connected with a power input end L, N, two output ends of the first voltage regulator B1 are respectively connected with two input ends of the transformer BT, one output end of the transformer BT is connected with a first alternating current output end, the other output end is connected with a second alternating current output end through the current limiting resistor R1, the other output end is connected with a third alternating current output end through the current limiting resistor R2, the short circuit switch ZK1 is connected with the current limiting resistor R1 in parallel, two output ends of the second voltage regulator B2 are respectively connected with two alternating current voltage output ends, two output ends of the third voltage regulator B3 are respectively connected with two alternating current input ends of the rectifier D, two direct current output ends of the rectifier D are respectively connected with two direct current output ends of the rectifier C.

2. The ac/dc debugging experiment table as claimed in claim 1, wherein a double-pole single-throw switch K1 is disposed between the two input ends of the voltage regulator B1 and the power input end L, N, a double-pole single-throw switch K2 is disposed between the two input ends of the voltage regulator B2 and the power input end L, N, a double-pole single-throw switch K3 is disposed between the two input ends of the voltage regulator three B3 and the power input end L, N, an ammeter a is connected in series between the current limiting resistor R1 and the second ac current output end, an ammeter mA is connected in series between the current limiting resistor R2 and the third ac current output end, an ac voltmeter V1 is connected in parallel between the two output ends of the voltage regulator B2 and the two ac voltage output ends, a double-pole single-throw switch ZK2 is disposed between the two dc output ends of the rectifier D, and a double-pole single-throw switch ZK3 is disposed between the two dc output ends of the rectifier D.

3. The AC/DC debugging experiment table as claimed in claim 2, further comprising an experiment table body (1), wherein the transformer BT, the current limiting resistor R1, the current limiting resistor R2, the rectifier D and the voltage stabilizing capacitor C are respectively arranged inside the experiment table body (1), the mA meter, the ammeter A meter, the AC voltmeter V1, the DC voltmeter V2, the shorting switch ZK1, the double-pole single-throw switch K2, the double-pole single-throw switch K3, the double-pole single-throw switch ZK2 and the double-pole single-throw switch ZK3 are respectively arranged on an inclined panel (11) at the top of the experiment table body 1, the inclined panel (11) at the top of the experiment table body (1) is further provided with a socket XS connected with a power input end L, N, binding posts D1, D2 and D3 respectively connected with the first alternating current output end, the second alternating current output end and the third alternating current output end, binding posts D4 and D5 respectively connected with the two alternating current voltage output ends, binding posts D6 and D7 respectively connected with the two direct current voltage output ends, a first voltage regulator B1, a second voltage regulator B2 and a third voltage regulator B3 are respectively installed in the experiment table body (1), and tops and manual adjustment knobs of the first voltage regulator B1, the second voltage regulator B2 and the third voltage regulator B3 are respectively positioned below the front of the inclined panel (11) and are exposed out of the table top of the experiment table body (1).

4. The ac/dc debug laboratory bench of claim 1, wherein said rectifier D is a single-phase full-wave rectifier bridge rated for 10A.

5. The ac/dc debugging laboratory bench of claim 1, wherein said voltage regulator one B1, voltage regulator two B2 and voltage regulator three B3 are single-phase manual voltage regulators having a capacity of greater than 500VA, respectively.

6. The ac/dc debugging experiment table as set forth in claim 1, wherein said transformer BT is a single-phase ac transformer with an input voltage of 220V and an output voltage of 6V, and the capacity of the transformer BT is greater than 500VA.

7. The ac/dc debugging experiment table as set forth in claim 1, wherein the current limiting resistor R1 is a wire-wound resistor with a power of 200W and a resistance value of 0.5 ohm, and the current limiting resistor R2 is a wire-wound resistor with a power of 20W and a resistance value of 60 ohm.

8. The ac/dc debug laboratory bench of claim 1, wherein said shorting switch ZK1 has a current rating of 32A.