CN114123177A - Movable alternating-current power supply for electric power tunnel construction - Google Patents
Movable alternating-current power supply for electric power tunnel construction Download PDFInfo
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- CN114123177A CN114123177A CN202111358446.8A CN202111358446A CN114123177A CN 114123177 A CN114123177 A CN 114123177A CN 202111358446 A CN202111358446 A CN 202111358446A CN 114123177 A CN114123177 A CN 114123177A
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- circuit breaker
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- 238000010276 construction Methods 0.000 title claims abstract description 19
- 230000005611 electricity Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Keying Circuit Devices (AREA)
Abstract
The invention discloses a movable alternating current power supply for electric power tunnel construction, which comprises a shell, a circuit breaker and a switch assembly, wherein the shell is provided with a power receiving port and a power supply port; the power receiving port is connected with a power supply line, the power supply port is connected with the electric equipment, and the key module is pressed to control the connection or disconnection of the electric equipment and the power supply circuit, so that the power failure operation of the electric equipment without a switch is facilitated.
Description
Technical Field
The invention relates to the field of power supply, in particular to a movable alternating current power supply for electric power tunnel construction.
Background
The device is used for construction of 220V/380V power tunnels. When underground construction is carried out, high-power and dangerous equipment such as an electric drill, an electric hammer and the like can be operated, and emergency shutdown, emergency shutdown or emergency stop is possibly required. In the actual construction, these equipment all are direct connection on the power supply line, do not set up the switch between, especially those do not have equipment of switch own, for example the flatiron, often need to remove the circuit that directly is connected with the power supply line when shutting down, have the potential safety hazard.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the power-off requirement of equipment without a switch is met.
The invention provides a movable alternating-current power supply for electric power tunnel construction, which comprises a shell, a circuit breaker and a switch assembly, wherein a power receiving port and a power supply port are arranged on the shell, the circuit breaker and the switch assembly are arranged in the shell, an incoming line port of the circuit breaker is connected with the power receiving port, an outgoing line port of the circuit breaker is connected with an incoming line port of the switch assembly, an outgoing line port of the switch assembly is connected with the power supply port, and a key part in the switch assembly penetrates through the shell and is arranged outside the shell.
Further, the switch assembly includes an ac contactor, a first intermediate relay, and a second intermediate relay.
Furthermore, the live wire links to each other with the one end of the third port that opens always of ac contactor in the inlet wire port of circuit breaker, the live wire in the other end power supply port of the third port that opens always of ac contactor links to each other, zero line links to each other with the one end of the fourth port that opens always of ac contactor in the inlet wire port of circuit breaker, the other end of the fourth port that opens always of ac contactor links to each other with the zero line in the power supply port.
Further, the one end of button part with live wire links to each other in the inlet wire port of circuit breaker, the other end of button part respectively with the one end of the first normally open port of alternating current relay link to each other with the one end of the normally closed port of alternating current relay links to each other, the other end of the first normally open port of alternating current relay with the one end of the normally closed port of second auxiliary relay links to each other, the other end of the normally closed port of second auxiliary relay links to each other with the one end of the electrical coil that adds of first auxiliary relay, the other end of the electrical coil that adds of first auxiliary relay with zero line links to each other in the inlet wire port of circuit breaker.
Furthermore, the other end of the normally closed port of the alternating current relay is connected with one end of the first normally closed port of the first relay, the other end of the first normally closed port of the first relay is connected with one end of the wire adding coil of the second intermediate relay, and the other end of the wire adding coil of the second intermediate relay is connected with a zero line in the wire inlet port of the circuit breaker.
Further, live wire links to each other with the one end of the first normally open port of second auxiliary relay in the inlet wire port of circuit breaker, the other end of the first normally open port of second auxiliary relay with the one end of the second normally closed port of first auxiliary relay links to each other, the other end of the second normally closed port of first auxiliary relay with ac contactor's the one end that adds the electric coil links to each other, ac contactor's the other end that adds the electric coil with zero line links to each other in the inlet wire port of circuit breaker.
Further, ac contactor's first normally open port is parallelly connected with first intermediate relay's normally open port, ac contactor's first normally closed port is parallelly connected with second intermediate relay's second normally open port, second intermediate relay's first normally open port with ac contactor's second normally open port is parallelly connected.
Further, the heating coil of the alternating current contactor is connected with the indicator lamp in parallel.
Further, the key part is a jog button.
The invention has the following positive beneficial effects: the power receiving port is connected with a power supply line, the power supply port is connected with the electric equipment, and the key module is pressed to control the connection or disconnection of the electric equipment and the power supply circuit, so that the power failure operation of the electric equipment without a switch is facilitated.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only two of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a movable AC power supply for electric power tunnel construction;
FIG. 2 is a control circuit of the switch assembly in the present application during power failure;
fig. 3 is a control circuit for the switching element of the present application.
In the figure, KT-casing, SB-key section, DX-are connected to the power receiving port for receiving electric wires, CZ-are connected to the socket of the power supply port.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the specific embodiments described herein are only for explaining the present invention and are not used to limit the present invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "disposed," "mounted," "connected," "fixed," and the like are used broadly and are defined as, for example, "connected" can be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Example one
Referring to fig. 1-3, the invention provides a movable alternating current power supply for electric power tunnel construction, which comprises a shell, a circuit breaker and a switch assembly, wherein the shell is provided with a power receiving port and a power supply port, the circuit breaker and the switch assembly are arranged in the shell, a wire inlet port of the circuit breaker is connected with the power receiving port, a wire outlet port of the circuit breaker is connected with a wire inlet port of the switch assembly, a wire outlet port of the switch assembly is connected with the power supply port, and a key part in the switch assembly penetrates through the shell and is arranged outside the shell.
In the present embodiment, the switch assembly includes an ac contactor, a first intermediate relay, and a second intermediate relay; the alternating current relay is KM, two ends of a power-applying coil of the alternating current relay KM are A1 and A2, two ends of a first normally-open port of the alternating current relay KM are 61 and 62, two ends of a second normally-open port of the alternating current relay KM are 13 and 14, two ends of a third normally-open port of the alternating current relay KM are 73 and 74, two ends of a fourth normally-open port of the alternating current relay KM are 83 and 84, and two ends of a normally-closed port of the alternating current relay KM are 53 and 54; the first intermediate relay is KA, two ends of a normally-open port of the first intermediate relay KA are 6 and 10, two ends of a first normally-closed port of the first intermediate relay KA are 9 and 1, and two ends of a second normally-closed port of the first intermediate relay KA are 11 and 3; the second intermediate relay is KB, the two ends of the normally closed port of the second intermediate relay KB are 9 and 1, the two ends of the first normally open port of the second intermediate relay KB are 7 and 11, and the two ends of the second normally open port of the second intermediate relay KB are 6 and 10; the key part is a jog key SB; the live wire in the incoming line port of the circuit breaker is Lin, the zero line in the incoming line port of the circuit breaker is Nin, the live wire in the power supply port is Lout, and the zero line in the power supply port is Nout.
The alternating current contactor adopts a Zhengtai CJX 2-3210220V type, the breaker adopts a Zhengtai NB 1-632P D6A type, the intermediate relay adopts an ohm dragon MY4N AC220V type, and the indicator lamp adopts a Zhengtai ND16-22/4 yellow alternating current 220V type.
The live wire Lin in the inlet port of the circuit breaker is connected with one end 73 of a third normally-open port of the alternating current contactor KM, the live wire Lout in the power supply port of the other end 74 of the third normally-open port of the alternating current contactor KM is connected, the zero line Nin in the inlet port of the circuit breaker is connected with one end 83 of a fourth normally-open port of the alternating current contactor KM, and the other end 84 of the fourth normally-open port of the alternating current contactor KM is connected with the zero line Nout in the power supply port.
One end of the key part SB is connected with a live wire Lin in an incoming line port of the circuit breaker, the other end of the key part SB is connected with one end 61 of a first normally-open port of the alternating current relay KM and one end 53 of a normally-closed port of the alternating current relay KM respectively, the other end 62 of the first normally-open port of the alternating current relay KM is connected with one end 9 of the normally-closed port of the second intermediate relay KB, the other end 1 of the normally-closed port of the second intermediate relay KB is connected with one end 13 of a power-adding coil of the first intermediate relay KA, and the other end 14 of the power-adding coil of the first intermediate relay KA is connected with a zero line Nin in the incoming line port of the circuit breaker.
The other end 54 of the normally closed port of the alternating current relay KM is connected with one end 9 of the first normally closed port of the first relay KA, the other end 1 of the first normally closed port of the first relay KA is connected with one end 13 of the wire adding coil of the second intermediate relay KB, and the other end 14 of the wire adding coil of the second intermediate relay KB is connected with a zero line Nin in the wire inlet port of the circuit breaker.
Live wire Lin links to each other with one end 7 of the first normally open port of second intermediate relay KB in the inlet wire port of circuit breaker, and the other end 11 of the first normally open port of second intermediate relay KB links to each other with one end 11 of the second normally closed port of first intermediate relay KA, and the other end 3 of the second normally closed port of first intermediate relay KA links to each other with one end A1 of the power coil of ac contactor KM, and the other end A2 of the power coil of ac contactor KM links to each other with zero line Nin in the inlet wire port of circuit breaker.
The first normally open port of the alternating current contactor KM is connected in parallel with the normally open port of the first intermediate relay KA, the first normally closed port of the alternating current contactor KM is connected in parallel with the second normally open port of the second intermediate relay KB, and the first normally open port of the second intermediate relay KB is connected in parallel with the second normally open port of the alternating current contactor KM.
The device is arranged in the shell, has small volume and is convenient to carry. Because AC contactor KM adopts high-power contactor, so can support high-power output, during the use, the power receiving port on the casing communicates with the power supply line, power supply port (socket) output on the casing can connect equipment such as electric drill, flatiron, press the button SB of inching for the first time and supply power output, press button SB of inching again and be no output promptly, during the use, this equipment is not far away from the equipment that is supplied power, to those not having the equipment of switch of itself, for example flatiron, and the inconvenient equipment of shutting down, all can adopt the method of shutting down the electricity immediately to cut off the power supply. The emergency output shutdown and the shutdown are very convenient, and the electric power tunnel is very convenient to construct, debug and use. The voltage can be changed to 380V alternating current by exchanging devices.
The switching principle is explained below:
pressing the jog key SB for the first time is a start effect: when the inching button SB is pressed, only the normally closed port of the AC contactor KM, the first normally closed port of the first intermediate relay KA and the additional coil of the second intermediate relay KB form a passage, so that the internal coil of the second intermediate relay KB is electrified and attracted, the first normally open port of the second intermediate relay KB is closed, the second normally open port is closed and the normally closed port is disconnected, meanwhile, the internal coil of the AC contactor KM is electrified and attracted, the first normally open port of the AC contactor KM is closed, the second normally open port is closed, the third normally open port is closed, the fourth normally open port is closed and the normally closed port is disconnected, when the inching button SB is released, the internal coil of the second intermediate relay KB is electrically disconnected, the first normally open port of the second intermediate relay KB is reset, the second normally open port is reset and the normally closed port is reset, meanwhile, the AC contactor KM forms a self-locking through the continuous attraction of the second normally open port of the AC contactor KM, wherein, the auto-lock route is: a second normally open port of the ac contactor KM, a second normally closed port of the first intermediate relay, and an energizing coil of the ac contactor KM.
Pressing the jog key SB a second time is a stop effect: when the jog key SB is pressed, the normally closed port of the alternating current contactor KM, the normally closed port of the second intermediate relay KB and the energizing coil of the first intermediate relay KA form a passage, the internal coil of the first intermediate relay KA is electrified and attracted, the first normally closed port of the first intermediate relay KA is disconnected, the second normally closed port of the first intermediate relay KA is disconnected, the normally closed port of the second intermediate relay KA is disconnected and the normally open port is closed, and the second normally closed port of the first intermediate relay KA is connected in series with the energizing coil of the alternating current contactor KM, so that the internal coil of the alternating current contactor KM is electrically disconnected, the first normally open port of the alternating current contactor KM is reset and the second normally open port is reset, The third normally open port is reset, the fourth normally open port is reset, and the normally closed port is reset.
In this embodiment, the two intermediate relays of the first intermediate relay KA and the second intermediate relay KB are interlocked, the ac contactor KM has a self-locking effect, and two times of pressing the start button actually realizes the alternate attraction of the two intermediate relays through the normally open port and the normally closed port of the ac contactor KM.
Example two
The second embodiment is obtained by adding technical features such as an indicator light on the basis of the first embodiment, the remaining technical features are the same as those of the first embodiment, and the description of the same points is omitted, wherein the technical features different from those of the first embodiment are as follows: the energized coil of the AC contactor KM is connected in parallel with the indicator lamp.
Because the two are parallelly connected, when alternating current contactor KM adds that the coil gets the electricity and attracts, the pilot lamp also gets the electricity and gives out light, when alternating current contactor KM adds that the coil loses the electricity disconnection, the pilot lamp also loses the electricity and does not give out light, through the bright or dark conduct of pilot lamp whether export the alternating current instruction, have the electricity when lighting, on the contrary the electroless, the personnel of being convenient for observe the operation, prevent that the maloperation from causing the emergence of accident.
The foregoing is considered as illustrative of the preferred embodiments of the invention and technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (9)
1. The utility model provides a portable alternating current power supply is used in electric power tunnel construction, includes casing, circuit breaker and switch module, characterized by: be provided with on the casing and receive electric port and power supply port, circuit breaker and switch module set up in the casing, the incoming line port of circuit breaker with receive the electric port and link to each other, the outgoing line port of circuit breaker with switch module's incoming line port links to each other, switch module's outgoing line port with the power supply port links to each other, button part among the switch module runs through the casing and as for the casing outside.
2. The movable alternating-current power supply for electric power tunnel construction as claimed in claim 1, wherein: the switch assembly includes an ac contactor, a first intermediate relay, and a second intermediate relay.
3. The movable alternating-current power supply for electric power tunnel construction as claimed in claim 2, wherein: the live wire in the inlet wire port of circuit breaker links to each other with the one end of ac contactor's third normally-open port, the live wire in the other end power supply port of ac contactor's third normally-open port links to each other, zero line links to each other with the one end of ac contactor's fourth normally-open port in the inlet wire port of circuit breaker, the other end of ac contactor's fourth normally-open port links to each other with the zero line in the power supply port.
4. The movable alternating-current power supply for electric power tunnel construction as claimed in claim 3, wherein: the one end of button part with live wire links to each other in the inlet wire port of circuit breaker, the other end of button part respectively with the one end of the first normally open port of AC relay link to each other with the one end of the normally closed port of AC relay links to each other, the other end of the first normally open port of AC relay with the one end of the normally closed port of second auxiliary relay links to each other, the other end of the normally closed port of second auxiliary relay links to each other with the one end of the electrical coil that adds of first auxiliary relay, the other end of the electrical coil that adds of first auxiliary relay with the zero line links to each other in the inlet wire port of circuit breaker.
5. The movable alternating-current power supply for electric power tunnel construction as claimed in claim 4, wherein: the other end of the normally closed port of the alternating current relay is connected with one end of the first normally closed port of the first relay, the other end of the first normally closed port of the first relay is connected with one end of the wire adding coil of the second intermediate relay, and the other end of the wire adding coil of the second intermediate relay is connected with a zero line in the wire inlet port of the circuit breaker.
6. The movable alternating-current power supply for electric power tunnel construction as claimed in claim 5, wherein: the utility model discloses a circuit breaker, including circuit breaker, live wire, first auxiliary relay, second auxiliary relay, alternating current contactor, zero line in the inlet wire port of circuit breaker, the live wire links to each other with the one end of the first normally open port of second auxiliary relay in the inlet wire port of circuit breaker, the other end of the first normally closed port of second auxiliary relay with the one end of the second normally closed port of first auxiliary relay links to each other, the other end of the second normally closed port of first auxiliary relay with alternating current contactor's one end that adds the electric coil links to each other, alternating current contactor's the other end that adds the electric coil with zero line links to each other in the inlet wire port of circuit breaker.
7. The movable alternating-current power supply for electric power tunnel construction as claimed in claim 6, wherein: the first normally open port of AC contactor is parallelly connected with the normally open port of first auxiliary relay, AC contactor's first normally closed port is parallelly connected with the normally open port of second auxiliary relay, the first normally open port of second auxiliary relay with AC contactor's the normally open port of second is parallelly connected.
8. The movable ac power supply for electric power tunnel construction according to claim 7, wherein: and the energized coil of the alternating current contactor is connected with the indicator lamp in parallel.
9. The movable ac power supply for electric power tunnel construction according to claim 8, wherein: the key part is a jog button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111358446.8A CN114123177A (en) | 2021-11-17 | 2021-11-17 | Movable alternating-current power supply for electric power tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111358446.8A CN114123177A (en) | 2021-11-17 | 2021-11-17 | Movable alternating-current power supply for electric power tunnel construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114123177A true CN114123177A (en) | 2022-03-01 |
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ID=80396886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111358446.8A Pending CN114123177A (en) | 2021-11-17 | 2021-11-17 | Movable alternating-current power supply for electric power tunnel construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114123177A (en) |
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2021
- 2021-11-17 CN CN202111358446.8A patent/CN114123177A/en active Pending
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