CN212907490U - Excitation type dual-power contact pressing system - Google Patents
Excitation type dual-power contact pressing system Download PDFInfo
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- CN212907490U CN212907490U CN202021629053.7U CN202021629053U CN212907490U CN 212907490 U CN212907490 U CN 212907490U CN 202021629053 U CN202021629053 U CN 202021629053U CN 212907490 U CN212907490 U CN 212907490U
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Abstract
The utility model discloses an excitation type dual supply contact pressing system, which comprises an outer shell, be provided with the press bar in the shell, the bottom fixed mounting according to the press bar has alternating switch, rotate through first bolt on the press bar and install the connecting rod, the other end of connecting rod rotates through the second bolt and is connected with the change-over bar, the change-over bar is pegged graft in a conversion section of thick bamboo, a conversion section of thick bamboo sets up in the inner chamber both sides of shell, controls both ends the top of a conversion section of thick bamboo all is provided with the power, the connecting rod sets up for bilateral symmetry, the beneficial effects of the utility model: the phenomenon that a double-power switch in the prior art is likely to be in contact with a secondary power supply while being in contact with a main power supply is avoided, and meanwhile, the danger during power supply switching is reduced through the arc extinguishing sheet arranged inside the conversion drum.
Description
Technical Field
The utility model relates to a dual power transfer switch technical field specifically is an excitation type dual power contact pressing system.
Background
The double-power-supply automatic change-over switch is used for preventing a fault power supply from supplying power to a load when a main power supply fails in a power supply system, and reliably selecting a qualified power supply to be put into normal operation so as to ensure uninterrupted power supply. The places with important use, such as hospitals, airports and docks, all rely on a dual-power automatic transfer switch to provide continuous power supply.
The common domestic dual-power automatic transfer switch is the most widely three-point automatic switching device, the wiring is two-way power supplies, one is used and the other is standby, the dual-power automatic transfer switch is formed by combining two contactors or circuit breakers or load isolating switches, and electrical interlocking and mechanical interlocking are generally arranged between two switch bodies to prevent the two power supplies from being connected in parallel. Under normal conditions, any one of the two power supplies power, and the other one is standby; when the power supply is in failure and power failure in normal use, the automatic transfer switch automatically transfers the load to another power supply for power supply, and the automatic transfer switch can be divided into three types according to different combinations and working principles of the automatic transfer switch: the first contactor type is formed by combining two contactors, is the earliest type, and the combined device has simple circuit and low price, but has poor reliability, long-term live working of a working contactor coil and high power consumption, and designers adopt the combination less and less at present; the second is a CB-level product, which is formed by combining two air circuit breakers and a controller, has mechanical interlocking and electrical interlocking, combines a protection switch and a switch together, has both a protection function and a switching function, and is simple and reliable in system; the third PC level product is generally packaged in a complete shell, is formed by overlapping two load isolating switches and combining a controller, and has mechanical interlocking and electrical interlocking. When the interlocking fails, the load equipment is burnt due to the condition that two different power supplies run in parallel.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an excitation type dual supply contact pressing system to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an excitation type dual supply contact pressing system, includes the shell, be provided with in the shell and press the depression bar, the bottom fixed mounting who presses the depression bar has alternating switch, rotate through first bolt and install the connecting rod according to on the depression bar, the other end of connecting rod rotates through the second bolt and is connected with the change-over bar, the change-over bar is pegged graft in a conversion section of thick bamboo, a conversion section of thick bamboo sets up in the inner chamber both sides of shell, controls both ends the top of a conversion section of thick bamboo all is provided with the power, the connecting rod sets up for bilateral symmetry.
As a further aspect of the present invention: the switching rod is provided with a moving contact, the switching cylinder is internally provided with a static contact matched with the moving contact, and the static contact is connected with a power supply.
As a further aspect of the present invention: the inside of a conversion section of thick bamboo still the equidistance evenly is provided with a plurality of arc-extinguishing pieces.
As a further aspect of the present invention: the top of shell has seted up the through-hole, the top of pressing the depression bar runs through the through-hole and extends to the top of shell.
As a further aspect of the present invention: and a power supply identification line is arranged on the body of the pressing rod.
Compared with the prior art, the beneficial effects of the utility model are that: the phenomenon that a double-power switch in the prior art is contacted with a main power supply and possibly contacted with an auxiliary power supply is avoided; meanwhile, the danger of power supply switching is reduced through the arc extinguishing sheet arranged in the conversion drum.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the device comprises a shell 1, a pressing rod 2, an alternating switch 3, a first plug 4, a connecting rod 5, a conversion rod 6, a conversion cylinder 7, a power supply 8, a movable contact 9, a fixed contact 10, a through hole 11 and a second plug 12.
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 creative work belong to the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, an excitation type dual power contact pressing system includes a housing 1, a pressing rod 2 is disposed in the housing 1, an alternating switch 3 is fixedly mounted at the bottom of the pressing rod 2, a connecting rod 5 is rotatably mounted on the pressing rod 2 through a first pin 4, the other end of the connecting rod 5 is rotatably connected to a conversion rod 6 through a second pin 12, the conversion rod 6 is inserted into a conversion cylinder 7, the conversion cylinder 7 is disposed at two sides of an inner cavity of the housing 1, and a power supply 8 is disposed at the top of the conversion cylinder 7 at two ends, and the connecting rod 5 is disposed in a bilateral symmetry manner.
It should be noted that a movable contact 9 is arranged on the conversion rod 6, a static contact 10 matched with the movable contact 9 is arranged in the conversion cylinder 7, and the static contact 10 is connected with the power supply 8.
It is worth noting that a plurality of arc extinguishing plates are uniformly arranged in the interior of the conversion drum 7 at equal intervals.
It should be noted that the top of the housing 1 is opened with a through hole 11, and the top of the pressing rod 2 penetrates through the through hole 11 and extends to the top of the housing 1.
It is noted that the shaft of the pressing rod 2 is provided with a power identification line.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides an excitation type dual supply contact pressing system, includes shell (1), its characterized in that: be provided with in shell (1) and press down depression bar (2), the bottom fixed mounting who presses down depression bar (2) has alternating switch (3), press down on depression bar (2) to rotate through first bolt (4) and install connecting rod (5), the other end of connecting rod (5) is rotated through second bolt (12) and is connected with change-over lever (6), change-over lever (6) are pegged graft in a conversion section of thick bamboo (7), a conversion section of thick bamboo (7) set up in the inner chamber both sides of shell (1), control both ends the top of a conversion section of thick bamboo (7) all is provided with power (8), connecting rod (5) set up for bilateral symmetry.
2. The excitation type dual-power contact pressing system according to claim 1, wherein: a moving contact (9) is arranged on the conversion rod (6), a static contact (10) matched with the moving contact (9) is arranged in the conversion cylinder (7), and the static contact (10) is connected with a power supply (8).
3. The excitation type dual-power contact pressing system according to claim 1, wherein: a plurality of arc extinguishing sheets are uniformly arranged in the conversion drum (7) at equal intervals.
4. The excitation type dual-power contact pressing system according to claim 1, wherein: through-hole (11) have been seted up at the top of shell (1), the top of pressing rod (2) runs through-hole (11) and extends to the top of shell (1).
5. The excitation type dual-power contact pressing system according to claim 1, wherein: and a power identification line is arranged on the body of the pressing rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021629053.7U CN212907490U (en) | 2020-08-07 | 2020-08-07 | Excitation type dual-power contact pressing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021629053.7U CN212907490U (en) | 2020-08-07 | 2020-08-07 | Excitation type dual-power contact pressing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212907490U true CN212907490U (en) | 2021-04-06 |
Family
ID=75236426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021629053.7U Active CN212907490U (en) | 2020-08-07 | 2020-08-07 | Excitation type dual-power contact pressing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212907490U (en) |
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2020
- 2020-08-07 CN CN202021629053.7U patent/CN212907490U/en active Active
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