CN216624169U

CN216624169U - Intelligent circuit breaker and electric leakage release

Info

Publication number: CN216624169U
Application number: CN202122704551.4U
Authority: CN
Inventors: 邵江华; 夏晓敏
Original assignee: Zhejiang Chint Electrics Co Ltd
Current assignee: Zhejiang Chint Electrics Co Ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-05-27
Anticipated expiration: 2031-11-05

Abstract

The utility model provides an intelligence circuit breaker and electric leakage release, electric leakage release include coil pack and set up the grafting subassembly in coil pack one end, coil pack includes bobbin and moves iron core, quiet iron core assembly with the cooperation setting of bobbin the outer winding coil of coil pack moves the iron core and is driven by the coil, the grafting subassembly includes two at least binding post, is connected with the wire in every binding post's one end, the wire is connected with the control scheme board in the circuit breaker, and binding post's the other end passes the connecting hole on the coil pack and is connected with the lead-out wire of coil the binding post outside is equipped with at least one barb, after binding post passed the connecting hole, by barb and bobbin block. According to the utility model, the electric leakage release is connected to the control circuit board through the lead, and the plug-in component is clamped with the coil framework through the barb, so that the electric leakage release is simple in structure and convenient to wire.

Description

Intelligent circuit breaker and electric leakage release

Technical Field

The utility model relates to the field of low-voltage electric appliances, in particular to an intelligent circuit breaker and an electric leakage release.

Background

A circuit breaker is a common switching element used in an electric power system to turn on and off an electric circuit and automatically break the electric circuit when an overcurrent or leakage fault occurs in the electric circuit. Usually, the circuit breaker has the earth leakage protection function, and traditional earth leakage circuit breaker adopts the rated voltage drive of circuit breaker (for example 220V), and this kind of mode earth leakage release coil both ends voltage is higher, and this just makes the interior resistance of earth leakage release great and easily generate heat to make earth leakage circuit breaker's earth leakage trip frequency generally limited 120 times or 240 times in an hour, in addition, current earth leakage release driving force under the low-voltage is not good, and the volume is great.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a small-size leakage release capable of being driven by low voltage and an intelligent circuit breaker applying the leakage release.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an electric leakage release, includes coil pack and sets up the grafting subassembly in coil pack one end, coil pack includes bobbin and moves iron core, quiet iron core subassembly with coil pack cooperation setting the outer winding coil of coil pack moves the iron core and is driven by the coil, the grafting subassembly includes two at least binding post, is connected with the wire in every binding post's one end, and binding post's the other end passes connecting hole on the coil pack and is connected with the lead-out wire of coil the binding post outside is equipped with at least one barb, after binding post passed the connecting hole, by barb and bobbin block.

Further, binding post includes the body, the middle part of body is equipped with the wiring chamber that is used for the threading, and wire and lead-out wire are respectively followed the both ends in wiring chamber and are stretched into in opposite directions and connect at the wiring intracavity one side of body is seted up with the window of wiring chamber intercommunication the outside of body is provided with a barb at least.

Furthermore, the lead and the outgoing line penetrate into the wiring cavity, one end of the wiring cavity penetrating into the lead is extruded outside to fix the lead in the wiring cavity, and the outgoing line is welded in the wiring cavity opposite to the window.

Furthermore, one end of the connecting terminal is connected with at least one metal sheet serving as a barb, one end of the metal sheet is connected with the connecting terminal, and the other end of the metal sheet inclines outwards along the direction far away from the connecting terminal.

Further, coil skeleton is equipped with the installation cavity that runs through coil skeleton both ends, and the winding has the enameled wire that forms the coil outside the middle part of coil skeleton, and quiet iron core subassembly fixed mounting moves the iron core and wears to establish in the installation cavity in the one end of installation cavity, and moves the middle part that the one end of iron core passed quiet iron core subassembly and stretch out outside the coil skeleton, is equipped with connecting portion in the one end that quiet iron core subassembly was kept away from to coil skeleton connecting portion are equipped with two at least connecting holes.

The electromagnetic coil is characterized by further comprising a housing, the housing is made of a magnetic conductive material and is of a hollow tubular structure, the coil component is assembled in the hollow portion of the housing to increase electromagnetic force, one end of the housing is fixedly connected with the coil framework through the static iron core component, and the other end of the housing is fixedly connected with the coil framework.

Further, insulating paint is sprayed on the outer side surface of the housing to form an insulating layer, or insulating paint is sprayed on the outer side of the coil to form an insulating layer, or an insulating tape resistant to voltage breakdown is wound on the outer side of the coil.

Further, it is relative with quiet iron core assembly in coil skeleton's installation cavity and to move the iron core sliding assembly, and the one end of moving the iron core is connected with the push rod, and the one end of push rod is passed quiet iron core assembly and is stretched out outside the installation cavity, overlaps in the push rod outside and is equipped with reset spring, reset spring's both ends respectively with move iron core, quiet iron core assembly butt.

The intelligent circuit breaker comprises a shell, a control circuit board and the electric leakage release, wherein the control circuit board is arranged in the shell, the electric leakage release is connected with the control circuit board through a lead, and the voltage output by the control circuit board is less than or equal to 24V and directly drives the electric leakage release to act.

Preferably, an N-phase pole or a control pole is arranged in the housing, the leakage release and the control circuit board are assembled in the N-phase pole or the control pole, a plug is formed at the other end of the wire of the leakage release, and the plug is connected with a corresponding jack of the control circuit board in an inserting manner.

Preferably, the shell is further provided with an electric leakage test button, a light touch switch for controlling the action of the electric leakage release is arranged in the shell or on the control circuit board, and the light touch switch is triggered by pressing the electric leakage test button, so that the control circuit board directly outputs voltage to drive the electric leakage release to act.

According to the leakage release, the lead wire is connected with the outgoing line of the coil through the wiring terminal of the plug-in assembly, and the barb is clamped with the coil framework, so that the leakage release is simple in structure and convenient to wire.

Preferably, the body of the wiring terminal is simple in structure and low in cost, the wiring terminal can be clamped with the coil framework, and the lead and the outgoing line are convenient to fix and weld.

In addition, the electromagnetic force of the coil assembly is increased by adding the housing, so that the leakage tripping device still keeps a good action state under the low-voltage driving; in addition, insulating paint is sprayed on the outer side of the housing or the outer side of the coil, or insulating adhesive tape is wound on the outer side of the coil, so that the voltage breakdown resistance of the coil is improved.

According to the intelligent circuit breaker, the leakage release is arranged in the N-phase pole or the control pole and is connected with the control circuit board through the wiring terminal, so that the leakage release can be driven by low voltage, and the intelligent circuit breaker has the advantages of convenience in wiring and small occupied space, and is beneficial to the miniaturization design of the circuit breaker.

In addition, a traditional test loop is not arranged inside the circuit breaker, and the miniaturization design of the circuit breaker is facilitated.

Drawings

Fig. 1 is a schematic structural diagram of the leakage release of the present invention;

fig. 2 is an exploded view of the earth leakage release of the present invention;

fig. 3 is a schematic diagram of the internal structure of the leakage release of the present invention;

FIG. 4 is a schematic view of the construction of the plug assembly of the present invention;

FIG. 5 is a schematic diagram of the construction of the bobbin of the present invention;

FIG. 6 is a schematic structural view of the body of the present invention;

fig. 7 is a schematic diagram of an N-phase pole structure of the smart circuit breaker according to the present invention;

fig. 8 is a schematic diagram of a control pole structure of the intelligent circuit breaker of the present invention.

Detailed Description

The following describes a specific embodiment of an intelligent circuit breaker and an electrical leakage release according to the present invention with reference to the embodiments shown in fig. 1 to 8. The smart circuit breaker and the electrical leakage trip of the present invention are not limited to the description of the following embodiments.

The utility model provides an intelligence circuit breaker's creepage release 4, includes coil pack and sets up the grafting subassembly in coil pack one end, coil pack includes bobbin 411 and moves iron core 413, quiet iron core subassembly 414 that sets up with the cooperation of bobbin 411 the outer winding coil 412 of coil pack 411 moves iron core 413 and is driven by coil 412, the grafting subassembly includes two at least binding post, is connected with wire 422 in the one end of every binding post, wire 422 is connected with control circuit board 31 in the circuit breaker, and binding post's the other end passes connecting hole 4113 on the bobbin 411 and is connected with coil 412's lead-out wire the binding post outside is equipped with at least one barb 4213, after binding post passes connecting hole 4113, by barb 4213 and bobbin 411 block.

According to the leakage tripping device 4 of the intelligent circuit breaker, the leakage tripping device 4 is connected to the control circuit board 31 through the lead 422 and driven by low voltage, in addition, the lead 422 is connected with the outgoing line of the coil 412 through the wiring terminal of the plug-in assembly, and is clamped with the coil framework 411 through the barb 4213, so that the leakage tripping device 4 is simple in structure and convenient to wire.

Referring to fig. 1-6, a specific embodiment of an electrical leakage release 4 is provided, where the electrical leakage release 4 includes a housing 43, a coil assembly and a plug assembly, the coil assembly is accommodated and assembled in the housing 43, and the plug assembly is disposed at one end of the coil assembly, where the coil assembly includes a bobbin 411, a coil 412, a movable iron core 413 and a stationary iron core assembly 414, an enamel-insulated wire as the coil 412 is wound outside the bobbin 411, a mounting cavity 4111 is disposed in the middle of the bobbin 411, the mounting cavity 4111 penetrates through both ends of the bobbin 411, the stationary iron core assembly 414 is fixedly assembled at one end of the bobbin 411, that is, the stationary iron core assembly 414 is assembled at one end of the mounting cavity 4111 and fixedly connected with the mounting cavity 4111, a through hole communicated with the mounting cavity 4111 is disposed in the middle of the stationary iron core assembly 414, preferably, the through hole coincides with the central axis of the mounting cavity 4111, move iron core 413 sliding fit in installation cavity 4111, move the one end and the installation cavity 4111 sliding fit of iron core 413, move the other end of iron core 413 and pass quiet iron core subassembly 414 and stretch out outside coil skeleton 411 the outer winding coil 412 of coil skeleton 411, under the drive of coil 412, move iron core 413 and carry out linear motion along the central axis of installation cavity 4111, specifically as shown in fig. 2, 3, the one end of moving iron core 413 is connected with push rod 416, moves iron core 413 and is connected with the one end of quiet iron core subassembly 414 relative one end and push rod 416, and the other end of push rod 416 passes outside the middle part perforation of quiet iron core subassembly 414 stretches out installation cavity 4111, is equipped with reset spring 415 outside the body of rod that push rod 416 is located installation cavity 4111, and reset spring 415's both ends are connected with quiet iron core subassembly 414, move iron core 413 respectively.

In this embodiment, as shown in fig. 2, the housing 43 is made of a material with good magnetic conductivity, the housing 43 is integrally a hollow tubular structure, the coil assembly is disposed in the hollow area and wrapped by the housing 43, so as to increase the electromagnetic force of the coil assembly, so that the moving iron core 413 has a larger force during the movement, one end of the housing 43 is fixed to one end of the bobbin 411 through the stationary iron core assembly 414, and the other end of the housing 43 is fixedly connected to the bobbin 411. Further, an insulating coating is sprayed on the outer side of the housing 43 to form an insulating layer to satisfy the impact withstand voltage, and of course, spraying an insulating varnish on the outer side of the coil 412 to form an insulating layer, or winding an insulating tape on the outer side of the coil 412 can also achieve the capability of improving the impact withstand voltage.

In this embodiment, one end of the coil bobbin 411, which is far away from the stationary core component 414, is provided with a connecting portion 4112, where the connecting portion 4112 is a boss structure in a T shape in fig. 4 and 5, the connecting portion 4112 is provided with at least two connecting holes 4113, and two sides of the boss are respectively provided with one connecting hole 4113 in fig. 5, so that the plug-in component disposed at one end of the coil component is connected to the coil component through the connecting hole 4113.

The plug assembly shown in fig. 1 to 6 comprises at least two terminals, each terminal passing through a corresponding connecting hole 4113 of one connecting portion 4112, one end of each terminal is connected with a lead 422 for connecting a voltage of less than or equal to 24V, the leakage release 4 can be driven by the voltage of less than or equal to 24V, the connection terminal is connected to the control wiring board 31 in the circuit breaker through a wire 422 to realize low voltage driving, in fig. 1 to 3, the other end of the lead wire 422 forms a plug 4221 for plugging with the control circuit board 31, the other end of the connection terminal passes through a connection hole 4113 on the coil bobbin 411 to be connected with the lead wire of the coil 412, at least one barb 4213 is arranged on the outer side of the terminal, and after the terminal passes through the connecting hole 4113, the barb 4213 is engaged with the coil bobbin 411, that is, with the connecting portion 4112, so as to prevent the plug assembly from falling off from the coil assembly.

As shown in fig. 6, the connection terminal includes a body 421, a connection cavity 4211 for threading is disposed in the middle of the body 421, the connection cavity 4211 penetrates through two ends of the body 421 to make the body 421 integrally form a hollow tube, a lead 422 and an outgoing line respectively extend into the connection cavity 4211 from two ends of the connection cavity 4211 in opposite directions and are connected in the connection cavity 4211, a window 4212 communicated with the connection cavity 4211 is disposed at one side of the body 421, in fig. 6, the window 4212 opens one side of the middle of the connection cavity 4211, the lead 422 extends into the connection cavity 4211, that is, the lead 422 extends into the left end of the connection cavity 4211 in fig. 6, the lead 422 is limited and fixed in the connection cavity 4211 by pressing the left end of the connection cavity 4211 by an external force, the outgoing line of the coil 412 extends into the connection cavity 4211 from the other end of the connection cavity 4211, that is, that the outgoing line extends into the right end of the connection cavity 4211 in fig. 6, and the outgoing line extends to an area opposite to the window 4212, soldering the outgoing line on the wiring terminal; barb 4213 is for setting up the foil in binding post one end, and the foil can set up one or more, is only provided with a foil in the right-hand member outside of body 421 in fig. 6, the one end and the binding post of foil are connected, and the other end of foil inclines outwards along the direction of keeping away from binding post, and when passing connecting hole 4113, the other end of foil is close to body 421 under the extrusion of connecting hole 4113, and after wearing out connecting hole 4113 completely, the foil recovers the normal position, makes the other end of foil and the connecting portion 4112 block of coil skeleton 411, prevents that binding post from droing from coil skeleton 411. The body 421 of the connection terminal has simple structure and low cost, can be clamped with the coil frame 411, and is convenient for fixing and welding the lead wire 422 and the outgoing line.

In connection with fig. 7-8, a specific embodiment of a smart circuit breaker is provided, which comprises a housing 1, inside which housing 1 at least one L-phase pole (not shown) and N-phase pole 2 are arranged side by side.

An incoming line terminal and an outgoing line terminal are arranged at two ends of the L-phase pole and the N-phase pole 2, a handle mechanism, an operating mechanism and a contact mechanism are arranged between the incoming line terminal and the outgoing line terminal, wherein the handle mechanism is in linkage connection with the operating mechanism, a moving contact of the contact mechanism is in linkage connection with the operating mechanism, a static contact of the contact mechanism is arranged opposite to the moving contact, the N-phase pole 2 is in linkage connection with the handle mechanism and the operating mechanism of the L-phase pole respectively, and manual operation of opening and closing of the circuit breaker can be achieved through the operation of the handle mechanism.

The N-phase pole 2 is further provided with a mutual inductor for collecting current signals, the mutual inductor is arranged in the middle of the N-phase pole 2, the leakage release 4 in the embodiment is arranged between the mutual inductor and the handle mechanism, one end of a movable iron core 413 of the leakage release 4 is opposite to the operating mechanism of the N-phase pole 2, or one end of a push rod 416 is opposite to the operating mechanism of the N-phase pole 2, and after a leakage fault occurs, the coil assembly drives the movable iron core 413 to act so as to trigger the operating mechanism, so that a buckle structure of a buckle and a buckle in the operating mechanism is broken down, and the tripping and power-off of the circuit breaker are realized.

Still be provided with control pole 3 in the shell 1 be provided with control scheme board 31 and drive module in the control pole 3, be provided with microcontroller on the control scheme board 31, microcontroller can drive the drive module action according to received signal, makes the circuit breaker carry out automatic divide-shut brake, drive module includes by microcontroller drive pivoted motor and by motor drive pivoted drive mechanism, drive mechanism is connected with the operating device linkage of the 2 and/or L looks utmost point of N looks. The leakage tripping device 4 is connected with the control circuit board 31 through a plug-in component, preferably, a plug 4221 is formed by the other end of the lead 422 connected to the terminal, the plug 4221 is plugged in a corresponding jack of the control circuit board 31, and the control circuit board 31 outputs a voltage less than or equal to 24V to directly drive the leakage tripping device 4, so that the voltage of the leakage tripping device 4 is usually 12V, 24V or other lower voltage values.

Control pole 3 still is provided with leakage test button 32, and test button 32 sets up on the upper portion of shell 1 in fig. 8, is provided with the light switch 33 that touches of control leakage release 4 action on control circuit board 31, triggers to touch switch 33 through pressing leakage test button 32 and carries out the leakage test, makes control circuit board 31 direct output voltage drive leakage release 4 action, replaces the more complicated experimental return circuit of traditional leakage circuit breaker, produces the scheme of leakage signal through test button, does benefit to the miniaturized design of circuit breaker. Of course, the tact switch 33 need not be provided on the control wiring board 31, and the tact switch 33 may be provided at another position in the casing 1 facing the leakage test button 32.

In addition, when the circuit breaker is not provided with the control pole 3 alone, the control circuit board 31, the leakage test button 32 and the leakage release 4 are all arranged in the N-phase pole 2, and accordingly, parts inside the N-phase pole 2 can be adjusted accordingly.

The intelligent circuit breaker of this embodiment sets up electric leakage release 4 in N looks utmost point 2 or control utmost point 3, and electric leakage release 4 passes through binding post and is connected with control scheme board 31, and its wiring is convenient, occupation space is little, does benefit to the miniaturized design of circuit breaker, and in addition, electric leakage release 4 of this embodiment is the low pressure drive, can not set up traditional experimental return circuit inside the circuit breaker, does benefit to the miniaturized design of circuit breaker.

The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.

Claims

1. The utility model provides a leakage release, includes coil pack and sets up the grafting subassembly in coil pack one end, coil pack includes bobbin (411) and moves iron core (413), quiet iron core subassembly (414) that set up with bobbin (411) cooperation coil bobbin (411) outer winding coil (412), move iron core (413) and are driven by coil (412), its characterized in that: the grafting subassembly includes two at least binding post, is connected with wire (422) in the one end of every binding post, and binding post's the other end passes connecting hole (4113) on coil skeleton (411) and is connected with the lead-out wire of coil (412) the binding post outside is equipped with at least one barb (4213), after binding post passed connecting hole (4113), by barb (4213) and coil skeleton (411) block.

2. A leakage release according to claim 1, wherein: the wiring terminal comprises a body (421), wherein a wiring cavity (4211) for threading is formed in the middle of the body (421), a lead (422) and an outgoing line respectively extend into the wiring cavity (4211) from two ends of the wiring cavity (4211) in opposite directions and are connected in the wiring cavity (4211), a window (4212) communicated with the wiring cavity (4211) is formed in one side of the body (421), and at least one barb (4213) is arranged on the outer side of the body (421).

3. A leakage release according to claim 2, wherein: the lead wire (422) and the outgoing wire penetrate into the wiring cavity (4211), one end of the wiring cavity (4211) penetrating into the lead wire (422) through external extrusion enables the lead wire (422) to be fixed in the wiring cavity (4211), and the outgoing wire is welded in the wiring cavity (4211) opposite to the window (4212).

4. A leakage release according to claim 1, wherein: the end part of one end of the connecting terminal is connected with at least one metal sheet as a barb (4213), one end of the metal sheet is connected with the connecting terminal, and the other end of the metal sheet inclines outwards along the direction far away from the connecting terminal.

5. A leakage release according to claim 1, wherein: coil skeleton (411) are equipped with installation cavity (4111) that runs through coil skeleton (411) both ends, the winding has the enameled wire that forms coil (412) in the middle part outside of coil skeleton (411), quiet iron core subassembly (414) fixed mounting is in the one end of installation cavity (4111), move iron core (413) and wear to establish in installation cavity (4111), and move the middle part that the one end of iron core (413) passed quiet iron core subassembly (414) and stretch out outside coil skeleton (411), the one end of keeping away from quiet iron core subassembly (414) in coil skeleton (411) is equipped with connecting portion (4112) are equipped with two at least connecting hole (4113).

6. A leakage release according to claim 1, wherein: the electromagnetic coil is characterized by further comprising a cover casing (43), wherein the cover casing (43) is of a hollow tubular structure made of magnetic conductive materials, the coil component is assembled in the hollow portion of the cover casing (43) to increase electromagnetic force, one end of the cover casing (43) is fixedly connected with the coil framework (411) through the static iron core component (414), and the other end of the cover casing (43) is fixedly connected with the coil framework (411).

7. A leakage release according to claim 1 or 6, wherein: and insulating paint is sprayed on the outer side surface of the housing (43) to form an insulating layer, or insulating paint is sprayed on the outer side of the coil (412) to form an insulating layer, or an insulating tape which can resist voltage breakdown is wound on the outer side of the coil (412).

8. A leakage release according to claim 1, wherein: move iron core (413) sliding assembly in installation cavity (4111) of coil skeleton (411) and relative with quiet iron core subassembly (414), the one end of moving iron core (413) is connected with push rod (416), the one end of push rod (416) is passed quiet iron core subassembly (414) and is stretched out outside installation cavity (4111), is equipped with reset spring (415) in push rod (416) outside cover, the both ends of reset spring (415) respectively with move iron core (413), quiet iron core subassembly (414) butt.

9. An intelligent circuit breaker, characterized by: the leakage tripping device comprises a shell (1), a control circuit board (31) arranged in the shell (1) and the leakage tripping device (4) as claimed in any one of claims 1 to 8, wherein the leakage tripping device (4) is connected with the control circuit board (31) through the lead (422), and the control circuit board (31) outputs a voltage of less than or equal to 24V to directly drive the leakage tripping device (4) to act.

10. A smart circuit breaker as claimed in claim 9, characterized in that: the N-phase pole (2) or the control pole (3) is arranged in the shell (1), the electric leakage release (4) and the control circuit board (31) are assembled in the N-phase pole (2) or the control pole (3), the other end of a lead (422) of the electric leakage release (4) forms a plug (4221), and the plug (4221) is connected with a corresponding jack of the control circuit board (31) in a plugging mode.

11. A smart circuit breaker as claimed in claim 9, characterized in that: the leakage testing device is characterized in that a leakage testing button (32) is further arranged on the shell (1), a light touch switch (33) for controlling the leakage release (4) to act is arranged in the shell (1) or on the control circuit board (31), and the light touch switch (33) is triggered by pressing the leakage testing button (32), so that the control circuit board (31) directly outputs voltage to drive the leakage release (4) to act.