CN217642164U - Plug-in low-voltage cabinet power supply convenient to overhaul - Google Patents
Plug-in low-voltage cabinet power supply convenient to overhaul Download PDFInfo
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- CN217642164U CN217642164U CN202221149191.4U CN202221149191U CN217642164U CN 217642164 U CN217642164 U CN 217642164U CN 202221149191 U CN202221149191 U CN 202221149191U CN 217642164 U CN217642164 U CN 217642164U
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Abstract
The utility model belongs to the technical field of the low-voltage cabinet power technology and specifically relates to a plug-in low-voltage cabinet power convenient to overhaul, including first switch inlet wire, first switch inlet wire is connected with the plug-in switch, the plug-in switch is connected with two first circuit breakers, one of them through the wire first circuit breaker is connected with first contactor through the wire, first contactor is connected with first switch and is qualified for the next round of competitions. The utility model discloses it is low with original drawer cancellation, change the mounting panel again in the cabinet, on fixing mounting panel with first circuit breaker and first contactor, first switch inlet wire is received on the copper bar with the cable and is got the electricity, this inlet wire has three contact (the minimum contact number) to increase the reliability of supplying power, and reduce and generate heat, no moving contact becomes flexible the bite and leads to short-circuit fault, can replace conventional drawer type switch, low in cost and ventilation cooling condition are more excellent, plug-in components and every return circuit wiring connect minimum, therefore, the reliability of supplying power has been increased.
Description
Technical Field
The utility model relates to a low-voltage cabinet power technical field especially relates to a plug-in low-voltage cabinet power convenient to overhaul.
Background
The original low-voltage high-power equipment power supply adopts a drawer type switch, and the design is as follows: the closed shell is made of steel plates, and the electric elements of the wire inlet and outlet loop are arranged in the drawer capable of being pulled out; the functional units of the drawer type switch cabinet are separated from the bus or the cable by a grounded metal plate or a functional plate made of plastic, so that three areas of the bus, the functional units and the cable are formed. There is also a separation between each functional unit.
As shown in fig. 1, the drawer switch is composed of a second circuit breaker 9 and two second contactors 7 connected in series. The second contactor 8 is taken from a bus, and the three-phase contacts are respectively provided with five contacts, and the drawer is pushed and pulled to make the breaker open and close easily to cause the cable temperature to be high and the arc discharge to generate short circuit accidents; the second circuit breaker 9 has no isolation function and needs to be drawn out through a drawer to achieve the purpose of isolation and maintenance; the second switch incoming line 10 is easy to loose and not in place by adopting a clamping groove type contact. When high-power equipment is connected in actual production and operation, the ventilation and heat dissipation conditions are poor, short-circuit accidents are easily caused due to high temperature in the cabinet, and the main loop and the secondary loop are connected through the connector, so that the reliability of power supply is reduced. And the main loop is led out through the adapter, the plug-in and the fixed contact are at least 6 positions, and each joint is a hidden fault point, so that the line loss is increased, and the power supply reliability is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a plug-in low-voltage cabinet power supply convenient to overhaul.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a plug-in low-voltage cabinet power convenient to overhaul, includes first switch inlet wire, first switch inlet wire is connected with the plug-in switch, the plug-in switch is connected with two first circuit breakers, one of them through the wire first circuit breaker is connected with first contactor through the wire, first contactor is connected with first switch and is qualified for the next round of competitions, two one side of first circuit breaker and first contactor is equipped with the mounting panel, two first circuit breaker and first contactor all pass through the side of mounting screw at the mounting panel, the plug-in switch passes through the mounting screw on the base of one of them first circuit breaker.
Preferably, two of the first circuit breakers and the first contactors are connected in series.
Preferably, the first switch incoming line and the first switch outgoing line are both fixed cables.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses low with original drawer cancellation, change the mounting panel again in the cabinet, fix first circuit breaker and first contactor to the mounting panel, the first switch inlet wire is received the copper bar with the cable and is got the electricity, this inlet wire has three contact (the minimum contact is counted) to increase the power supply reliability, and reduce and generate heat, no movable contact becomes flexible the bite and leads to short-circuit fault, can replace conventional drawer type switch, low in cost and ventilation heat dissipation condition are more excellent, plug-in components and every return circuit wiring connect minimum, therefore increased the power supply reliability;
the plug-in switch is arranged on the base of the circuit breaker, and the plug-in switch can be directly used as an isolation point during fault, so that the switch can be conveniently pulled out for maintenance;
the first switch incoming line and the switch outgoing line directly adopt fixed cables, and only three contacts reduce line loss to achieve the purpose of energy conservation.
Drawings
Fig. 1 is a structure diagram of a conventional drawer switch;
fig. 2 is the utility model discloses a plug-in low-voltage cabinet power's convenient to overhaul structural schematic diagram.
In the figure: the circuit breaker comprises a first switch incoming line 1, a plug-in switch 2, a mounting plate 3, a first switch outgoing line 4, a first breaker 5, a first contactor 6, a second contactor 7, a second switch outgoing line 8, a second breaker 9 and a second switch incoming line 10.
Detailed Description
The following description is provided to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
As shown in fig. 1-2, a plug-in low-voltage cabinet power convenient to overhaul, including first switch inlet wire 1, first switch inlet wire 1 is connected with plug-in switch 2, plug-in switch 2 is connected with two first circuit breakers 5 through the wire, one of them first circuit breaker 5 is connected with first contactor 6 through the wire, first contactor 6 is connected with first switch outlet wire 4, one side of two first circuit breakers 5 and first contactor 6 is equipped with mounting panel 3, two first circuit breakers 5 and first contactor 6 all pass through the side of mounting panel 3 of screw mounting, establish ties between two first circuit breakers 5 and the first contactor 6 and constitute. The first circuit breaker 5 and the first contactor 6 are fixed on the mounting plate 3, the first switch incoming line 1 is connected to a copper bar through a cable to obtain electricity, the incoming line has three contacts (the number of the contacts is the minimum), power supply reliability is improved, heating is reduced, no moving contact is loosened and jammed, short-circuit faults are caused, a conventional drawer type switch can be replaced, the manufacturing cost is low, the ventilation and heat dissipation conditions are better, and plug-in units and wiring connectors of each loop are the minimum, so that the power supply reliability is improved.
The plug-in switch 2 is mounted on the base of one of the first circuit breakers 5 by means of screws. When in fault, the pluggable switch can be directly used as an isolation point, and the switch can be conveniently pulled down for maintenance
The first switch incoming line 1 and the first switch outgoing line 4 are both fixed cables. And only three contacts reduce the line loss to achieve the purpose of energy saving.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a plug-in low-voltage cabinet power convenient to overhaul, includes first switch inlet wire (1), its characterized in that, first switch inlet wire (1) is connected with plug-in switch (2), plug-in switch (2) are connected with two first circuit breakers (5) through the wire, one of them first circuit breaker (5) are connected with first contactor (6) through the wire, first contactor (6) are connected with first switch and are qualified for the next round of competitions (4), two one side of first circuit breaker (5) and first contactor (6) is equipped with mounting panel (3), two first circuit breaker (5) and first contactor (6) are all through the side of mounting panel (3) mounting screw, plug-in switch (2) are through the mounting screw on the base of one of them first circuit breaker (5).
2. An easy-to-service plug-in low-voltage cabinet power supply according to claim 1, characterized in that two first breakers (5) and first contactors (6) are connected in series.
3. The easy-to-overhaul plug-in low-voltage cabinet power supply according to claim 1, wherein the first switch incoming line (1) and the first switch outgoing line (4) are both fixed cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221149191.4U CN217642164U (en) | 2022-05-13 | 2022-05-13 | Plug-in low-voltage cabinet power supply convenient to overhaul |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221149191.4U CN217642164U (en) | 2022-05-13 | 2022-05-13 | Plug-in low-voltage cabinet power supply convenient to overhaul |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217642164U true CN217642164U (en) | 2022-10-21 |
Family
ID=83652256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221149191.4U Active CN217642164U (en) | 2022-05-13 | 2022-05-13 | Plug-in low-voltage cabinet power supply convenient to overhaul |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217642164U (en) |
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2022
- 2022-05-13 CN CN202221149191.4U patent/CN217642164U/en active Active
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