CN217485377U - Remote intelligent control type miniature circuit breaker - Google Patents

Abstract

The utility model relates to a low voltage distribution field, especially a long-range intelligent control type miniature circuit breaker comprises inlet wire terminal, movable and static contact group, electromagnetism release, bimetallic strip, arc extinguishing device, switching module, remote control module and the terminal outgoing lines in the mechanical locking handle, the casing of casing, casing top. The utility model discloses rely on the electromagnetic trip ware of preceding level, arc control device realizes the short-circuit protection of circuit, is connected to the remote control module through external bus, and the switching module realizes long-range intelligence and controls in the control housing, and during emergent, also can be through the manual operation device switching circuit on the casing, be a compact, the wiring is simple, but remote control takes short-circuit protection's intelligence to control type miniature circuit breaker.

Description

Remote intelligent control type miniature circuit breaker

Technical Field

The utility model relates to a low voltage distribution field, especially a miniature circuit breaker of long-range intelligence accuse type.

Background

The existing large number of building lighting electric appliance loops adopt the traditional miniature circuit breaker to manually operate, so that the lighting loops are switched on and off. At present, various wired systems of an intelligent lighting system, such as intelligent switching modules of RS485, KNX and DALI protocols; all kinds of wireless intelligent switches, like wiFi, the remote switch of bluetooth agreement, can all realize long-rangely, regularly, automatic switch such as response, but do not have short circuit and overload protection function, in using, need establish ties the use with the wire for intelligent illumination switching module with miniature circuit breaker that has short circuit overload protection, cause the block terminal in-line process many to on a return circuit, need concatenate two equipment of miniature circuit breaker and intelligent switch, it is big to occupy the block terminal space. Many transformation projects, because miniature circuit breaker has occupied the block terminal in the original block terminal, do not have the position of installation intelligence switching module, cause and can't reform transform traditional miniature circuit breaker control into intelligent remote control.

Among the prior art, there is a type of intelligent circuit breaker which relies on a motor to drive a handle to realize opening and closing, and although the intelligent circuit breaker can be manually controlled and remotely controlled, the intelligent circuit breaker also has a short-circuit protection function, but because the motor has a limited service life, a complex structure and a large noise, the intelligent circuit breaker has a large application limitation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a miniature circuit breaker of long-range intelligence accuse type, especially the wiring is simple, but remote control's intelligence accuse type circuit breaker.

The utility model discloses the purpose is realized like this, a miniature circuit breaker of long-range intelligence accuse type, include: the mechanical locking handle at casing, casing top, incoming line terminal, moving and static contact group, electromagnetism release, bimetallic strip, arc control device, switching module, remote control module, leading-out terminal in the casing two output feet of switching module establish ties between incoming line terminal and leading-out terminal, remote control module be connected with the control foot of switching module, remote control module is used for receiving outside remote command and controls the switching module, manual operation device is used for two output foot break-make of manual control switching module.

Preferably, the manual operation device is characterized in that an operation hole is formed in the shell, the opening and closing module is a magnetic latching relay, a manual driving lever for controlling the opening and closing of the output pin of the relay is arranged on the shell of the magnetic latching relay, the manual driving lever of the magnetic latching relay is positioned on the inner side of the operation hole, and the manual driving lever can be operated outside the shell through the operation hole to control the opening and closing of the relay.

Preferably, the remote control module comprises an instruction unit, a communication unit connected with the instruction unit, and a relay driving unit, wherein the communication unit receives an external control signal, decodes the external control signal and transmits the decoded external control signal to the instruction unit, the instruction unit outputs a pulse control signal to the relay driving unit after operation, a power amplification circuit is arranged in the relay driving unit, and the relay driving unit drives the relay to change the on-off state, so that the on-off state of a circuit between the incoming terminal and the outgoing terminal is changed.

Preferably, the shell is provided with a two-bit communication terminal and a programming button, an external control bus is connected to the internal communication unit through the communication terminal on the shell, the communication unit is provided with two direct-current power supply output pins, one output pin outputs a first direct-current power supply to supply power to the command unit, the other output pin outputs a second direct-current power supply to supply power to the relay driving unit, the voltage of the second direct-current power supply is higher than that of the first direct-current power supply, and the programming button is connected to the command unit and used for downloading an application program of the command unit.

Because the electromagnetic trip and the arc extinguishing device are connected between the wire inlet and the wire outlet terminal, the circuit can be cut off when the circuit is short-circuited, and short-circuit protection is realized. Meanwhile, the switching module is connected between the incoming and outgoing line terminals in series, and remote external commands can drive the switching module to be connected and disconnected with a circuit through the remote control module, so that remote control is realized. And be provided with manual operation device on the casing, when the emergency situation such as remote control malfunction, still can be outside the casing through the handle hole, manual operation manual driving lever controls switching module output foot break-make, has improved the reliability.

Above remote control, and circuit short-circuit protection function all accomplish in a casing, need not too much line, it is that occupation space is little, and the wiring is simple, but remote control's intelligent control type circuit breaker.

Drawings

FIG. 1 is an isometric view of a first embodiment;

FIG. 2 is a sectional view of an axial step of the first embodiment;

FIG. 3 is a cross-sectional view of another axial step of the first embodiment;

FIG. 4 is an internal schematic block diagram of the first embodiment;

FIG. 5 is an axial sectional view of the second embodiment;

FIG. 6 is a schematic block diagram of a second embodiment;

FIG. 7 is an isometric view of a third embodiment;

FIG. 8 is a schematic block diagram of a third embodiment;

FIG. 9 is an isometric view of a fourth embodiment;

FIG. 10 is a schematic block diagram of a fourth embodiment;

FIG. 11 is an isometric view of example five;

fig. 12 is a schematic block diagram of a fifth embodiment.

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 some, not all, of the embodiments of the present invention. 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.

Fig. 1, fig. 2, and fig. 3 are different views of a first embodiment of the present invention. The external remote control signal of the first embodiment is a KNX bus signal.

As can be seen from fig. 1, 2 and 3, the present embodiment includes a housing 100, a mechanical locking handle 305 on the top of the housing, an outlet terminal 300 in the housing, a moving-static contact set 303, an electromagnetic trip 302, a bimetal 306, an arc extinguishing device 301, and an inlet terminal 304.

When the circuit breaker is used, the mechanical locking handle 305 is manually pulled to compress the internal elastic element for storing energy, meanwhile, the movable and static contact sets 303 are closed, when a circuit is in a short circuit, a large current flows through the electromagnetic release 302, the electromagnetic release 302 is released by an instant strong magnetic field, the movable and static contact sets 303 break a loop, the mechanical locking handle 305 rotates back to a breaking position under the action of the elastic element, and the arc extinguishing device 301 quickly extinguishes electric arcs generated by a breaking circuit to play a role in circuit short circuit protection.

As can be seen from fig. 2 and 3, the bimetal 306 is also connected in series in the loop, when the line is overloaded, the bimetal 306 is heated and deformed, the overload current reaches a certain value and duration, the bimetal 306 is mechanically bent to a certain position, then the static contact set 303 is triggered to break the loop, the mechanical locking handle 305 rotates back to the breaking position under the action of the elastic element, the arc extinguishing device extinguishes the generated arc quickly, and further the line overload protection effect is achieved.

The above is the implementation manner of the line protection function of the present embodiment, and the remote control function of the present embodiment is implemented as follows.

As shown in fig. 1 and fig. 2, the present embodiment is provided with a switching module 200 and a remote control module 500, two output pins of the switching module 200 are connected in series between an outgoing line terminal 300 and an incoming line terminal 304, a two-bit communication terminal 510 is provided on the housing 100, the two-bit communication terminal 510 is a red-black terminal of an international standard KNX bus, an external control command is transmitted to the remote control module 500 through the bus communication terminal 510, as shown in fig. 4, the remote control module 500 includes a command unit 530, a communication unit 540 connected to the command unit 530, a relay driving unit 550, two control pins of the switching module 200 are connected to the relay driving unit 550, the communication unit 540 receives an external control signal, decodes the external control signal and transmits the decoded external control signal to the command unit 530, the command unit 530 outputs a pulse control signal to the relay driving unit 550 after operation, the relay driving unit 550 is internally provided with a power amplifying circuit, and the relay driving unit 550 drives the switching module 200 to change the switching state, so that the connection or disconnection of the circuit between the incoming line terminal 304 and the outgoing line terminal 300 is changed, and the switching function of the remote control loop is realized.

In use, if the control bus fails or in some emergency situations, the circuit needs to be manually controlled to be opened or closed, and referring to fig. 1 and 2, a manual operation device 400 for controlling the opening or closing of the output pin of the opening and closing module 200 is arranged on the housing 100. As shown in fig. 3, the manual operation device 400 has a specific structure that an operation hole 410 is formed in a housing, the opening and closing module 200 is a magnetic latching relay, a manual lever 420 for controlling the opening and closing of an output pin of the relay is arranged on a housing of the magnetic latching relay, the manual lever 420 of the magnetic latching relay is positioned inside the operation hole 410, and in an emergency situation, the manual lever 420 can be operated through the operation hole 410 outside the housing to control the opening and closing of the relay, so that the requirement of using the manual operation device in the emergency situation is met.

Referring to fig. 1, the mechanical locking handle 305 is located on the first operation plane 102, the manual operating device 400 is located on the second operation plane 103, the two planes are substantially parallel to each other, the second operation plane 103 is lower than the first operation plane 102, and this structure makes the utility model only expose the mechanical locking handle 305 that needs to be operated frequently when installed in a standard distribution box. Since the manual operation device 400 does not need to be frequently operated, the manual emergency operation is performed only when the remote control fails, and the manual emergency operation can be prevented by arranging the manual emergency operation device on different planes. Meanwhile, since the top screw operation hole of the outlet terminal 300 is also located on the second operation plane 103, the manual operation device 400 is installed on the second plane 102, and the connection between the switch module 200 and the outlet terminal 300 is also facilitated.

As can be seen from fig. 1 and 2, a dust cover 430 is disposed on the second operating plane 103 and on the upper surface of the operating hole 410 of the manual operating device 400, a rotating shaft 440 for rotating the dust cover is disposed on the housing 100, one end of the dust cover 430 is connected to the rotating shaft 440, and the dust cover 430 is made of a transparent material. The position of the manual lever 420 inside the operation hole 410 can be seen through the dust cap, and the working state of the circuit can be known. When the remote control fails, the dust cover can be opened, and the manual shift lever 420 can be operated outside the shell through the operation hole 410 to control the opening and closing of the relay.

In students' dormitory, strict power consumption management occasion of needs such as apartment can also paste the strip of paper used for sealing after the shield is rotatory closed, perhaps through bonding, the shield is locked to modes such as lead sealing, prevents artificial operation relay manual driving lever 420 switching return circuit for the return circuit can only come the switching through remote signal, makes things convenient for managers management power consumption.

As can be seen from fig. 1 and 4, a programming button 520 is provided on the housing 100 for starting downloading the control program, and the programming button 520 is connected to the command unit 530. By touching the programming button 520, the application program can be downloaded to the internal command unit 530 through the bus.

The casing 100 on be provided with two communication terminal 510, outside control bus passes through communication terminal 510 on the casing and is connected to inside communication unit 540, this two communication terminal 510 is the red black terminal of KNX bus, when transmission control signal, also plays the effect of giving the power supply of inside remote control module, need not extra power supply terminal, just can work, the wiring is simple, the reliability is high.

Fig. 4 shows that the communication unit 540 of the first embodiment has two power output pins besides completing communication decoding, wherein the first DC power output pin supplies power to the instruction unit 530, and the second DC power output pin supplies power to the relay driving unit 550, and this kind of structure of the communication unit 540 with built-in multi-stage DC-DC power supply can complete communication decoding, and can provide different DC voltages, thereby greatly simplifying the internal structure and improving the reliability.

The utility model discloses, install in the block terminal, because in business turn over line terminal intermediate junction electromagnetism release 302 and arc control device 301, sound contact group 303, can be when circuit short circuit and overload, the automatic cutout circuit, and simultaneously, switching module 200 has still concatenated between the business turn over line, long-range external command can operate switching module 200 switch-on and open circuit through remote control module 500, and, be provided with manual operation device 400 on the casing, when remote control became invalid, accessible handle hole 410 outside the casing, switching module 200 switching is controlled to manual operation manual driving lever 420, reliability and practicality have further been improved.

The first embodiment realizes short circuit, overload protection, remote control and manual emergency control functions in one shell, and is an intelligent control type circuit breaker which is simple in wiring and can be remotely controlled.

Fig. 5 is a sectional view of the second embodiment, and fig. 6 is a functional block diagram of the second embodiment.

As shown in fig. 5 and 6, in this embodiment, there are a line terminal 304, two switching modules 210, 220, two line terminals 310, 320, and behind the line terminal 304, 2 output pins of the switching modules 210, 220, one end of each output pin is connected in parallel to the line terminal 304, and the other end is connected to the line terminals 310, 320. The two manual operating devices 480 and 490 correspond to the opening/ closing modules 210 and 220, respectively.

In the second embodiment, two sets of switching modules 210, 220 are connected behind an incoming terminal 304, a mechanical locking handle 305, and a set of short circuit protection electromagnetic trips 302 to control two separate outgoing terminals 310, 320. A short circuit in either loop will cause the electronic trip unit 302 to operate and be protected.

The remote control module 500 may independently control the opening and closing of the opening and closing modules 210 and 220 according to an external signal.

The two kinds of modes of embodiment are visible, one set of short-circuit protection measure, can connect the switching module of the independent switching work of N sets, N can be natural numbers such as 1.2.3.4, in the two embodiments, N is 2, this kind of take many modes, can further reduce the volume of the intelligent control type circuit breaker, can be in order to control the fixed condition of type circuit breaker width at the intelligence, increase the open control return circuit number, subdivide the control object, realize more manifold switching combination control, be favorable to controlling as required, be favorable to energy-concerving and environment-protective.

Fig. 7 and 8 are an isometric view and a schematic block diagram of a third embodiment.

The external remote control signal of the third embodiment is an RS485 protocol signal.

As can be seen from fig. 7 and 8, the terminals connected to the remote control module are 4-bit terminals, one pair of the terminals is a communication connection terminal 531, and transmits a control signal, which may be an RS485 protocol signal or a DALI protocol signal, the external remote control signal is connected to the communication connection terminal 531 through a bus, and after being decoded by the communication unit 540, the external remote control signal is transmitted to the instruction unit 530, and after being operated by the instruction unit 530, the instruction unit 530 outputs a pulse control signal to the relay driving unit 550, the relay driving unit 550 has a power amplifier circuit built therein, and the relay driving unit 550 drives the switching module 200 to change the on-off state, so as to change the on-off state of the circuit between the incoming terminal 304 and the outgoing terminal 300, thereby implementing the function of switching the remote control circuit.

The other pair of terminals 532 are power connection terminals through which an external direct current power is supplied to the internal power supply instruction unit 530 and the relay driving unit 550 after being DC-DC stepped down and stabilized by the power supply unit 560.

Fig. 9 and 10 are an isometric view and a schematic block diagram of the fourth embodiment.

The external remote control signal of the fourth embodiment is of a wireless type.

An external power supply is connected to the power supply unit 560 through a power connection terminal 532, the power supply unit 560, after being subjected to voltage reduction and voltage stabilization, supplies power to the internal command unit 530 and the relay drive unit 550, the communication unit 540, and the external remote control signal is a wireless signal, which is in a wireless mode such as WiFi, bluetooth, LoRa,4G, and the like, and is decoded by the communication unit 540 and transmitted to the command unit 530, the command unit 530 outputs a pulse control signal to the relay drive unit 550 after operation, a power amplification circuit is built in the relay drive unit 550, and the relay drive unit 550 drives the switching module 200 to change the switching state, so that the connection or disconnection of the circuit between the incoming terminal 304 and the outgoing terminal 300 is changed, and the switching function of the remote control circuit is realized.

Fig. 11 and 12 are an isometric view and a schematic block diagram of the fifth embodiment.

The external remote control signal of the fifth embodiment is of a power line carrier type.

The external remote control signal is a power line carrier, the external power supply and the remote control signal are connected to the power supply wiring terminal 532 through an alternating current power line and are connected to the power supply unit 560, the power supply unit 560 is used for supplying power to the internal command unit 530 and the relay driving unit 550 and the communication unit 540 after voltage reduction and voltage stabilization, and the external control command is transmitted to the carrier communication circuit 570 through the alternating current power line carrier and is transmitted to the communication unit 540 and the command unit 530 in sequence after being decoded by the carrier communication circuit 570 for power line carrier transmission. After the instruction unit 530 performs operation, a pulse control signal is output to the relay driving unit 550, a power amplification circuit is built in the relay driving unit 550, and the relay driving unit 550 drives the switching module 200 to change the switching state, so that the connection or disconnection of the circuit between the incoming line terminal 304 and the outgoing line terminal 300 is changed, and the switching function of the remote control circuit is realized.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims (10)

1. A remote intelligent control type miniature circuit breaker, comprising: the incoming line terminal in the mechanical locking handle at casing, casing top, casing, move quiet contact group, electromagnetism release, bimetallic strip, arc extinguishing device and leading-out terminal, its characterized in that: still include switching module and remote control module in the casing, still be equipped with manual operation device on the casing, two output feet of switching module establish ties between incoming line terminal and outlet terminal, remote control module be connected with the control foot of switching module, remote control module is used for receiving outside remote command and drives the switching module, manual operation device is used for two output foot break-make of manual control switching module.

2. The remote intelligent control type miniature circuit breaker according to claim 1, characterized in that: one input terminal in the shell is connected with N switching modules, N output terminals are arranged in the shell, one output pin of each switching module is connected to the input terminal in parallel, the other output pin of each switching module is connected to an independent output terminal, the number of the output terminals is the same as that of the switching modules, and N is any one of natural numbers of 1, 2, 3 and 4.

3. The remote intelligent control type miniature circuit breaker according to claim 1, characterized in that: the switching module is a magnetic latching relay, the magnetic latching relay is provided with a manual driving lever for controlling the output pin of the magnetic latching relay to be switched on and off, and the manual operating device consists of an operating hole formed in the shell and the manual driving lever positioned on the inner side of the operating hole.

4. The remote intelligent control type miniature circuit breaker according to claim 3, characterized in that: the mechanical locking handle is positioned on a first operation plane at the top of the shell, the operation hole of the manual operation device is positioned on a second operation plane on the shell, and the two operation planes are parallel to each other.

5. The remote intelligent control type miniature circuit breaker according to claim 3, characterized in that: the upper surface of the operation hole of the manual operation device is provided with a dustproof cover, the shell is provided with a rotating shaft for rotating the dustproof cover, one end of the dustproof cover is connected to the rotating shaft, and the dustproof cover is made of transparent materials.

6. The remote intelligent control type miniature circuit breaker according to claim 1, characterized in that: the remote control system comprises a remote control module, a switching module and a control module, wherein the switching module is a magnetic latching relay, the remote control module comprises a communication unit, an instruction unit and a relay driving unit, the communication unit is used for receiving an external control signal and transmitting the external control signal to the instruction unit after decoding, the instruction unit is used for outputting a control signal to the relay driving unit, and a power amplification circuit is arranged in the relay driving unit and used for driving the relay to change the switching state.

7. A remote intelligent control type miniature circuit breaker according to claim 6, wherein a two-position communication terminal and a programming button are provided on the housing, the external control bus is connected to said communication unit through the communication terminal on the housing, the communication unit has two DC power supply output pins, one output pin outputs a first DC power supply to power the command unit, the other output pin outputs a second DC power supply to power the relay driving unit, the second DC power supply voltage is higher than the first DC power supply voltage, and said programming button is connected to said command unit for downloading the application program of the command unit.

8. The remote intelligent control type miniature circuit breaker according to claim 6, characterized in that: be provided with the power supply terminal on the casing, the inside power supply unit that has in addition of casing, external power supply is connected to the power supply unit through the power supply terminal, and power supply unit output DC power supply supplies power for communication unit and relay drive unit, communication unit have wiFi and bluetooth module, loRa module, 4G module, outside control command transmits communication unit through wireless transmission, after the communication unit decodes, transmits for instruction unit.

9. The remote intelligent control type miniature circuit breaker according to claim 6, characterized in that: be provided with 4 binding post on the casing, wherein two are communication binding post, and two binding post are the power supply terminal in addition, and the inside power supply unit that also has of casing, external power supply power cord pass through the power supply terminal and insert the power supply unit, the power supply unit be used for instruction unit, the power supply of relay drive unit, outside control command is connected to communication binding post through the bus, after decoding through communication unit, transmits for instruction unit.

10. The remote intelligent control type miniature circuit breaker according to claim 6, characterized in that: the shell is provided with a power terminal, a power supply unit and a carrier communication circuit are arranged in the shell, an external alternating current wire is connected into the power supply unit through a power terminal, the power supply unit is used for supplying power to the communication unit and the relay driving unit after voltage reduction, an external control instruction is transmitted to the carrier communication circuit through an alternating current power line carrier, and the external control instruction is transmitted to the communication unit and the instruction unit in sequence after being decoded by the carrier communication circuit.

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