CN212392681U - Multifunctional power box - Google Patents
Multifunctional power box Download PDFInfo
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- CN212392681U CN212392681U CN202021849777.2U CN202021849777U CN212392681U CN 212392681 U CN212392681 U CN 212392681U CN 202021849777 U CN202021849777 U CN 202021849777U CN 212392681 U CN212392681 U CN 212392681U
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Abstract
The utility model provides a multifunctional power box for solve different test items and need use different test power, cause that the job site needs many experimental power cords, power wiring complicated, switch complex operation, consuming time power and work efficiency low, have the potential safety hazard scheduling problem of power consumption. The utility model discloses a power supply box body, this internal three-phase power supply circuit, single phase power supply circuit and the direct current power supply circuit of being equipped with respectively of power supply box, three-phase power supply circuit and single phase power supply circuit pass through circuit control conversion module and connect, and direct current power supply circuit connects the pressure regulating rectifier module, all is connected with the empty division of earth leakage protection on three-phase power supply circuit, single phase power supply circuit, direct current power supply circuit and the pressure regulating rectifier module. The utility model discloses collect three phase current, single phase power supply, DC power supply, earth leakage protection as an organic whole, be applicable to multiple interchange, direct current's portable equipment, overcome traditional test power many, wiring in disorder and with electric safety scheduling problem, effectively save experimental operating time, improve work efficiency greatly.
Description
Technical Field
The utility model relates to a power transmission and transformation high voltage test technical field, concretely relates to multifunctional power box.
Background
In the handover test of high-voltage lines and power transformation electrical equipment in power transmission and transformation installation projects, high-voltage tests are required to be carried out on various equipment. At present, when various electrical equipment is subjected to high-voltage tests in a construction site, multiple test power supplies are needed due to the fact that the electrical equipment is multiple in types, multiple test items are needed, and multiple test instruments are needed. For example, a three-phase power supply AC380V, a single-phase AC power supply AC220V, a DC power supply DC 5V, and the like are required, and equipment and instruments for different test items have different requirements on the power supplies. In the work in the past, the job site needs many experimental power cords, causes the power wiring complicated, switches complex operation, and consuming time and power also causes whole experimental preparation work simultaneously and finishes operating time long, influences the engineering progress, and work efficiency greatly reduced just has the power consumption potential safety hazard.
SUMMERY OF THE UTILITY MODEL
Different test power need be used to different test items to existence among the prior art, cause the job site to need many experimental power cords, cause the power connection complicated, switch complex operation, consuming time power and work efficiency low, have technical problem such as power consumption potential safety hazard, the utility model provides a multifunctional power supply case collects three phase current, single phase current, DC power supply, earth leakage protection as an organic whole, is applicable to multiple interchange, the portable equipment of direct current, has overcome traditional test power many, the wiring is in disorder and power consumption safety scheduling problem, effectively saves experimental operating time, improves work efficiency greatly.
In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a multifunctional power box, includes the power box body, this internal three-phase power supply circuit, single phase power supply circuit and the direct current power supply circuit of being equipped with respectively of power box, three-phase power supply circuit and single phase power supply circuit are connected through circuit control conversion module, and have power output terminal on the three-phase power supply circuit in parallel, are connected with voltage regulation rectifier module on the direct current power supply circuit, all be connected with the empty division of earth leakage protection on three-phase power supply circuit, single phase power supply circuit, direct current power supply circuit and the voltage regulation rectifier module.
The three-phase power circuit comprises a three-phase five-wire input circuit and a three-phase four-wire output circuit, the three-phase five-wire input circuit is connected with the three-phase four-wire output circuit, and a power output wiring terminal is connected to the three-phase four-wire output circuit in parallel; and the three-phase five-wire input circuit and the three-phase four-wire output circuit are respectively and correspondingly connected with a three-phase five-wire aviation socket and a three-phase four-wire socket.
The single-phase power supply circuit comprises a single-phase three-wire input circuit and at least two single-phase power supply output circuits, the single-phase three-wire input circuit is connected with the single-phase power supply output circuits, the two single-phase power supply output circuits are connected in parallel, the single-phase three-wire input circuit is connected with a single-phase three-wire aviation socket, and the two single-phase power supply output circuits are respectively connected with a single-phase five-hole socket and a USB converter.
The circuit control conversion module is a contact conversion handle with an anti-false lock, and the three-phase five-wire input circuit is connected with the single-phase three-wire input circuit through the contact conversion handle.
And the three-phase four-wire output circuit is connected with a first leakage protection air switch, and the single-phase power supply output circuit is connected with a second leakage protection air switch.
The direct current power supply circuit comprises a power supply positive circuit and a power supply negative circuit, wherein the input ends of the power supply positive circuit and the power supply negative circuit are respectively connected with the voltage-regulating rectification module, and the output ends of the power supply positive circuit and the power supply negative circuit are respectively and correspondingly connected with a positive terminal and a negative terminal.
And a power supply positive circuit and a power supply negative circuit of the direct-current power supply circuit are both connected with the direct-current leakage protection air switch.
The voltage-regulating rectifying module comprises an AC/DC converter, the input end of the AC/DC converter is connected with the third leakage protection air switch, and the output end of the AC/DC converter is respectively connected with a power supply positive electrode circuit and a power supply negative electrode circuit of the direct-current power supply circuit.
The AC/DC converter is connected with an electrolytic capacitor in parallel, and a potentiometer for adjusting the output current and voltage of the direct current power supply is connected with the AC/DC converter.
The three-phase power supply circuit and the single-phase power supply circuit are respectively and correspondingly connected with a single-phase digital voltmeter, and the direct-current power supply circuit is connected with a direct-current digital voltmeter.
The utility model integrates three-phase power supply, single-phase power supply, direct current power supply and leakage protection, is suitable for various alternating current and direct current portable equipment, and has simple overall structure design, light weight and portability; the use requirements of various test devices are met by using the high-power aviation plug; the power supply is convenient to disassemble and connect, the operation is simple and convenient, the problems of multiple power supplies, disordered wiring, potential safety hazards of electricity utilization and the like in the traditional test are solved, the test working time is effectively saved, the working efficiency is greatly improved, and the test cost is reduced; simultaneously the utility model discloses can replace the tertiary block terminal of construction usefulness for outdoor test, construction power consumption etc. have ensured the power consumption safety of experiment, construction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 1, the utility model provides a multifunctional power supply box, including the power supply box body, this internal three-phase power supply circuit, single phase power supply circuit and the direct current power supply circuit of being equipped with respectively of power supply box, three-phase power supply circuit and single phase power supply circuit are connected through circuit control conversion module. 380V or 220V alternating current power supply input can be selected according to the construction site and the test items, and the configuration of each one of the 5X4mm and 3X4mm prefabricated power supply lines is configured so as to satisfy the power consumption requirements of different test apparatuses. When AC380V and AC220V alternating-current power supplies are needed to be used simultaneously in the testing and construction processes, only the 5X4mm AC380V prefabricated cable power supply needs to be accessed, the AC220V power supply input is not needed, the three-phase power supply circuit is communicated with the single-phase power supply circuit by controlling the circuit control conversion module, and the power supply box can directly provide AC380V, AC220V and DC 0-245V power supplies to meet the power consumption requirements of different testing equipment; if only AC220V voltage is needed to be inputted by the AC power supply or only DC 0-245V DC power supply is needed, the circuit control conversion module isolates the inputted AC380V power supply loop from the AC220V power supply loop, and prevents the power from being reversely transmitted to the AC380V power supply loop. This structural design has also simplified power wiring circuit simultaneously, overcomes the problem that traditional experimental power is many, the wiring is in disorder, has the power consumption potential safety hazard, improves the power consumption security. The direct current power supply circuit is connected with a voltage regulating and rectifying module to control the output voltage and current of the direct current power supply and meet the use requirements of different direct current equipment on direct current voltages with different sizes. All be connected with the empty division of earth leakage protection on three-phase power supply circuit, single-phase power supply circuit, the DC power supply circuit and the pressure regulating rectifier module, play the effect of protection three-phase power supply circuit, single-phase power supply circuit, DC power supply circuit and pressure regulating rectifier module respectively, automatic cutout circuit when phenomenons such as circuit short circuit, overcurrent, electric leakage appear improves the power consumption safety.
Specifically, the three-phase power supply circuit comprises a three-phase five-wire input circuit and a three-phase four-wire output circuit, the three-phase five-wire input circuit is connected with the three-phase four-wire output circuit through a leakage protection switch, namely the three-phase five-wire input circuit respectively comprises a three-phase live wire phase A1, a phase B1 and a phase C1, a one-phase zero line phase N1 and a ground wire, the three-phase four-wire output circuit respectively comprises a three-phase live wire phase A2, a phase B2, a phase C2 and a one-phase zero line phase N2, and a ground wire binding post of the three-phase five-wire. Three-phase five-wire input circuit and three-phase four-wire output circuit correspond respectively and are connected with three-phase five-wire aviation socket and three-phase four-wire socket CZ0 for insert AC380V consumer, and through setting up high-power aviation plug, make things convenient for the wiring of multiple usage power, satisfy multiple test equipment's user demand.
The single-phase power supply circuit comprises a single-phase three-wire input circuit and at least two single-phase power supply output circuits, and the single-phase three-wire input circuit is connected with the single-phase power supply output circuits through a leakage protection switch. The single-phase three-wire input circuit comprises a one-phase live wire phase L3, a one-phase zero wire phase N3 and a ground wire PE3 respectively, the single-phase power output circuit also comprises a one-phase live wire phase L4, a one-phase zero wire phase N4 and a ground wire PE4, the phase L3 is connected with the phase L4 in parallel, the phase N3 is connected with the phase N4 in parallel, and the ground wire PE3 and the ground wire PE4 are both grounded. The single-phase three-wire input circuit is connected with a single-phase three-wire aviation socket, the two single-phase power output circuits are respectively connected with a single-phase five-hole socket and a USB converter, in the embodiment, 4 single-phase power output circuits are preferably arranged, 3 single-phase power output circuits are connected with the single-phase five-hole sockets CZ1, CZ2 and CZ3, the remaining 1 single-phase power output circuit is connected with the 4-plug-position USB converter, the arranged single-phase five-hole socket is used for meeting the use requirement of AC220V electric equipment, and the 4-plug-position USB converter is convenient to charge small portable.
Preferably, the circuit control conversion module is a contact conversion handle SBT with an anti-false lock, and the three-phase five-wire input circuit is connected with the single-phase three-wire input circuit through the contact conversion handle SBT. The zero line phase N1 of the three-phase five-wire input circuit is connected with the wiring pin 2 of the contact conversion handle SBT, the zero line phase N3 of the single-phase three-wire input circuit is connected with the wiring pin 1 of the contact conversion handle SBT, the phase B1 of the three-phase five-wire input circuit is connected with the wiring pin 4 of the contact conversion handle SBT, the phase L3 of the single-phase three-wire input circuit is connected with the wiring pin 3 of the contact conversion handle SBT, the wiring pin 1 of the contact conversion handle SBT is matched with the wiring pin 2, and the wiring pin 3 is matched with the wiring pin 4. When the AC380V and the AC220V alternating current power supply need be used simultaneously in the test power supply use process, the connection pin 1 and the connection pin 2 are closed and the connection pin 3 and the connection pin 4 are closed by rotating the contact conversion handle SBT, so that the three-phase power supply circuit is communicated with the single-phase power supply circuit, the power supply box is further directly provided with the AC380V, the AC220V and DC 0-240V power supplies, and the power utilization requirements of different test devices are met.
The direct-current power supply circuit can provide direct-current power supply output DC 0-240V adjustable voltage, and specifically comprises a power supply positive circuit and a power supply negative circuit, wherein the input ends of the power supply positive circuit and the power supply negative circuit are respectively connected with a voltage regulation rectifying module, the output ends of the power supply positive circuit and the power supply negative circuit are respectively and correspondingly connected with a positive terminal and a negative terminal, and the positive terminal and the negative terminal are respectively used for being connected into direct-current equipment. The voltage regulating and rectifying module comprises an AC/DC converter, and the output end of the AC/DC converter is respectively connected with a power supply positive electrode circuit and a power supply negative electrode circuit of the direct current power supply circuit, so that the output current and the voltage of the direct current power supply are controlled. The AC/DC converter is connected in parallel with an electrolytic capacitor, the electrolytic capacitor is a direct current electrolytic capacitor, plays a role in filtering, and provides large starting current and stable direct current voltage for the starting of the direct current motor. The AC/DC converter is connected with a potentiometer for adjusting the output current and voltage of the direct-current power supply, particularly an adjusting knob matched with the potentiometer is arranged on the power box body, and the movable contact of the potentiometer can be moved by rotating the adjusting knob so that the resistance value of the resistor body of the potentiometer is changed, and the purpose of adjusting the output voltage and the current of the direct-current power supply is achieved.
In this embodiment, the three-phase four-wire output circuit is connected with a first leakage protection air switch QF1, the single-phase power output circuit is connected with a second leakage protection air switch QF2, the input end of the AC/DC converter is connected with a third leakage protection air switch QF3, the direct-current power circuit is connected with an oil direct-current leakage protection air switch QF4, the first leakage protection air switch QF1, the second leakage protection air switch QF2, the third leakage protection air switch QF3 and the direct-current leakage protection air switch QF4 are respectively used for protecting the three-phase power circuit, the single-phase power circuit, the direct-current power circuit and the voltage-regulating rectification module, and when the phenomena of circuit short circuit, overcurrent, electric leakage and the like occur, the circuit is automatically cut off, and the electricity safety of test and construction is ensured.
Embodiment 2, the utility model provides a multifunctional power box, three-phase power supply circuit is last to have parallelly connected power output terminal, specifically do power output terminal connect in parallel on three-phase four-wire output circuit, in this embodiment, this power output terminal is three-phase four-wire terminal, include three-phase live wire and one-phase zero line respectively, establish to looks A5, looks B5, looks C5 and looks N5, can insert to the terminal wherein of different consumer needs arbitrary selection during the use, for example when inserting respectively looks A5, looks B5, during arbitrary two or three terminal in the looks C5, power output 380V this moment, when one end inserts looks A5, looks B5, arbitrary 1 terminal in the looks C5, when the other end inserts looks N5 terminal, power output 220V this moment, whole process operation is simple, high durability and convenient use.
The other structure is the same as embodiment 1.
Embodiment 3, the present invention provides a multifunctional power supply box, wherein a single-phase digital voltmeter is respectively and correspondingly connected to a three-phase power supply circuit and a single-phase power supply circuit, a direct-current digital voltmeter is connected to the direct-current power supply circuit, and the single-phase digital voltmeter comprises a first voltmeter BV1, a second voltmeter BV2, a third voltmeter BV3 and a fourth voltmeter BV4, the direct-current digital voltmeter is a fifth voltmeter BV5, wherein the first voltmeter BV1 respectively corresponds to a phase a1 of a three-phase five-wire input circuit and a phase a2 of a three-phase four-wire output circuit, the second voltmeter BV2 respectively corresponds to a phase B1 of the three-phase five-wire input circuit and a phase B2 of the three-phase four-wire output circuit, the third voltmeter 3 respectively corresponds to a phase C1 of the three-phase five-wire input circuit and a phase C2 of the three-phase four-wire output circuit, the fourth voltmeter 4 respectively corresponds to a phase L3 of the single-phase input circuit and the phase L4 of the single-phase power supply output circuit, the first voltmeter BV1, the second voltmeter BV2, the third voltmeter BV3, the fourth voltmeter BV4 and the fifth voltmeter BV5 are respectively used for monitoring the output voltage of the corresponding circuit and displaying the output voltage on a display screen of the digital voltmeter, so that the output voltage can be conveniently checked by constructors.
The other structure is the same as embodiment 1.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a multifunctional power box, includes the power box body, its characterized in that: the power box is internally provided with a three-phase power supply circuit, a single-phase power supply circuit and a direct-current power supply circuit respectively, the three-phase power supply circuit and the single-phase power supply circuit are connected through a circuit control conversion module, a power output binding post is connected to the three-phase power supply circuit in parallel, a voltage regulating and rectifying module is connected to the direct-current power supply circuit, and the three-phase power supply circuit, the single-phase power supply circuit, the direct-current power supply circuit and the voltage regulating and rectifying module are all connected with an earth leakage protection switch.
2. The multifunctional power supply box of claim 1, characterized in that: the three-phase power circuit comprises a three-phase five-wire input circuit and a three-phase four-wire output circuit, the three-phase five-wire input circuit is connected with the three-phase four-wire output circuit, and a power output wiring terminal is connected to the three-phase four-wire output circuit in parallel; and the three-phase five-wire input circuit and the three-phase four-wire output circuit are respectively and correspondingly connected with a three-phase five-wire aviation socket and a three-phase four-wire socket.
3. The multifunctional power supply box of claim 2, characterized in that: the single-phase power supply circuit comprises a single-phase three-wire input circuit and at least two single-phase power supply output circuits, the single-phase three-wire input circuit is connected with the single-phase power supply output circuits, the two single-phase power supply output circuits are connected in parallel, the single-phase three-wire input circuit is connected with a single-phase three-wire aviation socket, and the two single-phase power supply output circuits are respectively connected with a single-phase five-hole socket and a USB converter.
4. The multifunctional power supply box of claim 3, characterized in that: the circuit control conversion module is a contact conversion handle with an anti-false lock, and the three-phase five-wire input circuit is connected with the single-phase three-wire input circuit through the contact conversion handle.
5. The multifunctional power supply box according to claim 3 or 4, characterized in that: and the three-phase four-wire output circuit is connected with a first leakage protection air switch, and the single-phase power supply output circuit is connected with a second leakage protection air switch.
6. The multifunctional power supply box of claim 5, wherein: the direct current power supply circuit comprises a power supply positive circuit and a power supply negative circuit, wherein the input ends of the power supply positive circuit and the power supply negative circuit are respectively connected with the voltage-regulating rectification module, and the output ends of the power supply positive circuit and the power supply negative circuit are respectively and correspondingly connected with a positive terminal and a negative terminal.
7. The multifunctional power supply box of claim 6, wherein: and a power supply positive circuit and a power supply negative circuit of the direct-current power supply circuit are both connected with the direct-current leakage protection air switch.
8. The multifunctional power supply box according to claim 6 or 7, characterized in that: the voltage-regulating rectifying module comprises an AC/DC converter, the input end of the AC/DC converter is connected with the third leakage protection air switch, and the output end of the AC/DC converter is respectively connected with a power supply positive electrode circuit and a power supply negative electrode circuit of the direct-current power supply circuit.
9. The multifunctional power supply box of claim 8, wherein: the AC/DC converter is connected with an electrolytic capacitor in parallel, and a potentiometer for adjusting the output current and voltage of the direct current power supply is connected with the AC/DC converter.
10. The multifunctional power supply box according to any one of claims 1, 3, 4, 7 or 9, characterized in that: the three-phase power supply circuit and the single-phase power supply circuit are respectively and correspondingly connected with a single-phase digital voltmeter, and the direct-current power supply circuit is connected with a direct-current digital voltmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021849777.2U CN212392681U (en) | 2020-08-31 | 2020-08-31 | Multifunctional power box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021849777.2U CN212392681U (en) | 2020-08-31 | 2020-08-31 | Multifunctional power box |
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| Publication Number | Publication Date |
|---|---|
| CN212392681U true CN212392681U (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021849777.2U Active CN212392681U (en) | 2020-08-31 | 2020-08-31 | Multifunctional power box |
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| CN (1) | CN212392681U (en) |
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2020
- 2020-08-31 CN CN202021849777.2U patent/CN212392681U/en active Active
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