阅读说明：本技术 一种带计量功能的自动重合闸漏电保护断路器 (Automatic reclosing leakage protection circuit breaker with metering function ) 是由 王琪 文杰 罗将城 赵威 张广西 于 2021-08-06 设计创作，主要内容包括：本发明涉及一种带计量功能的自动重合闸漏电保护断路器,包括断路器断单元、与断路器单元相拼装的自动重合闸装置,所述的断路器单元的一侧上设置有与第一接线端子电连接的计量模块,所述的断路器单元的另一侧上设置有与第二接线端子电连接的漏电保护模块,所述的自动重合闸装置包括壳体、智能控制线路板、电动操作机构、电磁脱扣机构,电磁脱扣机构包括电磁脱扣器、推板、弹簧、脱扣拨板,所述的推板随顶杆动作且可推动脱扣拨板转动,所述的脱扣拨板可拨动脱扣轴动作,且可实现断路器单元的漏电脱扣分闸。本发明具有结构简单、性能稳定可靠、体积小、装配便捷、成本低的带计量功能的优点。(The invention relates to an automatic reclosing leakage protection circuit breaker with a metering function, which comprises a circuit breaker breaking unit and an automatic reclosing device assembled with the circuit breaker unit, wherein a metering module electrically connected with a first connecting terminal is arranged on one side of the circuit breaker unit, a leakage protection module electrically connected with a second connecting terminal is arranged on the other side of the circuit breaker unit, the automatic reclosing device comprises a shell, an intelligent control circuit board, an electric operating mechanism and an electromagnetic tripping mechanism, the electromagnetic tripping mechanism comprises an electromagnetic trip, a push plate, a spring and a tripping shifting plate, the push plate acts along with a push rod and can push the tripping shifting plate to rotate, the tripping shifting plate can shift a tripping shaft to act, and leakage tripping and brake separating of the circuit breaker unit can be realized. The invention has the advantages of simple structure, stable and reliable performance, small volume, convenient assembly and low cost and has the metering function.)

1. The utility model provides a take autoreclosing earth leakage protection circuit breaker of measurement function, includes the autoreclosing device that circuit breaker broken unit, assembled mutually with circuit breaker unit, its characterized in that: the automatic reclosing device comprises a shell, an intelligent control circuit board arranged in the shell, an electric operating mechanism arranged in the shell and used for driving the circuit breaker unit to open or close, and an electromagnetic tripping mechanism arranged in the shell, wherein the electromagnetic tripping mechanism comprises an electromagnetic trip electrically connected with the intelligent control circuit board, a push plate movably arranged in the shell and in linkage fit with a top rod of the electromagnetic trip, a spring arranged between the push plate and the shell, and a tripping dial plate rotatably arranged in the shell and matched with a tripping shaft of the circuit breaker unit, the push plate acts along with the top rod and can push the tripping dial plate to rotate, and the tripping dial plate can dial the tripping shaft to act, and the leakage tripping and opening of the circuit breaker unit can be realized.

2. The auto-reclosing earth leakage protection circuit breaker with metering function of claim 1, characterized in that: the casing in correspond push pedal department and be provided with the guide way, the both sides of push pedal on be provided with a direction sand grip respectively, direction sand grip block in the guide way, and the direction sand grip just can be at the guide way reciprocating sliding along with the push pedal action, and one of guide way serve and be provided with respectively with two spacing complex stoppers of two direction sand grips.

3. The auto-reclosing earth leakage protection circuit breaker with metering function of claim 2, characterized in that: the shell in the corresponding limiting block position is provided with a limiting groove, the limiting block is clamped in the limiting groove, and the limiting block and the shell are clamped and matched.

4. The auto-reclosing earth leakage protection circuit breaker with metering function according to claim 1 or 2, characterized in that: the metering module comprises a plastic shell arranged on one side of the circuit breaker unit, a metering circuit board arranged in the plastic shell and connected with the intelligent control circuit board, and a magnetic ring arranged on the metering circuit board, through holes for leading wires to pass through are respectively arranged on the plastic shell and the metering circuit board corresponding to the magnetic ring, and the leading wires pass through the plastic shell, the magnetic ring and the metering circuit board and are connected with the first wiring terminals.

5. The auto-reclosing earth leakage protection circuit breaker with metering function of claim 4, characterized in that: the metering circuit board is provided with a conducting strip, one end of the conducting strip is abutted against the first wiring terminal, and the metering circuit board is electrically connected with the first wiring terminal.

6. The auto-reclosing earth leakage protection circuit breaker with metering function according to claim 1 or 2, characterized in that: the earth leakage protection module including set up shell on circuit breaker unit opposite side, set up in the shell and with the earth leakage protection circuit board that intelligent control circuit board is connected, set up the zero sequence transformer on the earth leakage protection circuit board, shell, earth leakage protection circuit board on correspond zero sequence transformer punishment and do not be provided with the through wires hole that can supply the outside wire to pass, the outside wire can pass shell, zero sequence transformer, earth leakage protection circuit board and be connected with second binding post.

7. The auto-reclosing earth leakage protection circuit breaker with metering function of claim 6, characterized in that: the earth leakage protection circuit board on be provided with and get the electric piece, the one end of getting the electric piece contradict on second binding post, and constitute earth leakage protection circuit board and second binding post's electricity and be connected.

Technical Field

The invention relates to the technical field of circuit breakers, in particular to an automatic reclosing leakage protection circuit breaker with a metering function.

Background

At present, small circuit breakers are widely used in low-voltage distribution networks, mainly in various places such as industrial, commercial, high-rise and residential houses, and can perform overcurrent protection and leakage protection on electric devices such as motors, distribution lines and lighting circuits. The traditional small circuit breaker needs manual operation to complete the opening and closing actions. With the development of intelligent power grids in China, on the premise of requiring safe operation of the power grids, the realization of intellectualization of control of electric appliances is more and more urgent. In order to cope with new situation changes, the existing miniature circuit breaker should be provided with an automatic reclosing function. The electric operating mechanism of the miniature circuit breaker is an accessory used for a remote electric opening and closing circuit breaker, is directly matched with a prepayment electric energy meter for use, and can realize reclosing after payment. The existing automatic reclosing residual current circuit breaker has the defect of insensitive residual current tripping action due to unreasonable structural design. And the automatic reclosing earth leakage protection circuit breaker can not realize modular assembly, and has the defects of complex assembly, low production efficiency and high cost, so that the automatic reclosing earth leakage protection circuit breaker has the defects of complex structure, unreliable performance, inconvenient assembly and high cost.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the automatic reclosing earth leakage protection circuit breaker with the metering function, which has the advantages of simple structure, stable and reliable performance, small volume, convenient and fast assembly and low cost.

In order to achieve the purpose, the automatic reclosing leakage protection circuit breaker with the metering function comprises a circuit breaker breaking unit and an automatic reclosing device assembled with the circuit breaker unit, wherein a metering module electrically connected with a first connecting terminal is arranged on one side of the circuit breaker unit, a leakage protection module electrically connected with a second connecting terminal is arranged on the other side of the circuit breaker unit, the automatic reclosing device comprises a shell, an intelligent control circuit board arranged in the shell, an electric operating mechanism arranged in the shell and used for driving the circuit breaker unit to be opened or closed, and an electromagnetic tripping mechanism arranged in the shell, wherein the electromagnetic tripping mechanism comprises an electromagnetic tripping device electrically connected with the intelligent control circuit board, a push plate movably arranged in the shell and in linkage fit with a push rod of the electromagnetic tripping device, a spring arranged between the push plate and the shell, a spring, The rotating setting is in the casing and with the board is dialled in the release of circuit breaker unit's release shaft matched with dropout, the push pedal along with the ejector pin action and can promote the dropout and dial the board and rotate, the dropout dial the board and can stir the action of release shaft, and can realize the electric leakage dropout separating brake of circuit breaker unit.

The beneficial effect of above-mentioned structure is: be provided with metering module and earth leakage protection module on the both sides of circuit breaker unit respectively, thereby can realize this automatic reclosing earth leakage protection circuit breaker's measurement, the earth leakage protection function, and metering module, earth leakage protection module adopts the modularized design, thereby be convenient for metering module, the assembly of earth leakage protection module and circuit breaker unit, it is more convenient to assemble, and be provided with electromagnetic tripping mechanism in the automatic reclosing device, electromagnetic tripping mechanism's electromagnetism release can promote the push pedal action, the push pedal can promote the dropout and dial the board, the dropout dials the board and can drive the action of trip shaft, thereby can realize the earth leakage dropout separating brake of circuit breaker unit. Therefore, the automatic reclosing residual current circuit breaker has the advantages of simple structure, stable and reliable performance, small volume, convenience and quickness in assembly and low cost.

Particularly, the casing in correspond push pedal department and be provided with the guide way, the both sides of push pedal on be provided with a direction sand grip respectively, direction sand grip block in the guide way, and the direction sand grip just can be at the guide way reciprocating sliding along with the push pedal action, and one of guide way serve and be provided with respectively with two spacing complex stoppers of two direction sand grips. The direction sand grip block of push pedal is in the guide way to the assembly of the push pedal of being convenient for and casing, the assembly is more convenient, and can guarantee that the push pedal can reliably move, thereby is favorable to improving this electromagnetism tripping device's operational reliability.

Particularly, the shell in which a limiting groove is arranged corresponding to the limiting block is clamped in the limiting groove, and the limiting block is clamped and matched with the shell. The limiting block is clamped in the limiting groove, so that the limiting block and the shell are convenient to assemble, and the assembly is more convenient.

Particularly, the metering module comprises a plastic shell arranged on one side of the circuit breaker unit, a metering circuit board arranged in the plastic shell and connected with the intelligent control circuit board, and a magnetic ring arranged on the metering circuit board, through holes for leading wires to pass through are respectively arranged on the plastic shell and the metering circuit board corresponding to the magnetic ring, and the leading wires pass through the plastic shell, the magnetic ring and the metering circuit board and are connected with the first wiring terminals. The metering module is designed in a modular structure, so that the metering module and the circuit breaker unit can be assembled conveniently, the metering module can monitor a circuit, and the metering function of the automatic reclosing residual current circuit breaker can be realized.

Particularly, the metering circuit board is provided with a conducting strip, one end of the conducting strip is abutted against the first wiring terminal, and the metering circuit board is electrically connected with the first wiring terminal. Be provided with the conducting strip that contacts with first binding post on the measurement circuit board to be convenient for the assembly of measurement module and circuit breaker unit, it is more convenient to assemble.

Particularly, the earth leakage protection module including set up the shell on the circuit breaker unit opposite side, set up in the shell and the earth leakage protection circuit board that is connected with intelligent control circuit board, set up the zero sequence transformer on the earth leakage protection circuit board, shell, earth leakage protection circuit board on correspond zero sequence transformer punishment and be provided with the through wires hole that can supply external conductor to pass respectively, external conductor can pass shell, zero sequence transformer, earth leakage protection circuit board and be connected with second binding post. The leakage protection module is designed in a modular structure, so that the leakage protection module and the circuit breaker unit are convenient to assemble, the assembly is more convenient, the leakage protection module can monitor a leakage signal in a circuit, and the leakage protection function of the automatic reclosing leakage protection circuit breaker can be realized.

Particularly, the earth leakage protection circuit board is provided with a power taking piece, one end of the power taking piece is abutted to the second wiring terminal, and the earth leakage protection circuit board is electrically connected with the second wiring terminal. Be provided with the piece of getting electricity that contacts with second binding post on the electric leakage circuit board to the assembly of the earth leakage protection module of being convenient for and circuit breaker unit, the assembly is more convenient.

Drawings

Fig. 1 is a perspective view of a first embodiment of the present invention.

Fig. 2 is an internal structural view of the first embodiment of the present invention.

Fig. 3 is a structural diagram of an electromagnetic trip mechanism according to a first embodiment of the present invention.

Fig. 4 is an internal structural view of a metering module according to a first embodiment of the present invention.

Fig. 5 is an internal structure diagram of the leakage protection module according to the first embodiment of the present invention.

Fig. 6 is a perspective view of a second embodiment of the present invention.

Fig. 7 is an internal structural view of a second embodiment of the present invention.

Detailed Description

As shown in fig. 1 to 5, an embodiment of the present invention is an automatic reclosing earth leakage protection circuit breaker with a metering function, including a circuit breaker breaking unit 10 and an automatic reclosing device 20 assembled with the circuit breaker unit 10, wherein a metering module 30 electrically connected to a first connection terminal 11 is disposed on one side of the circuit breaker unit 10, an earth leakage protection module 40 electrically connected to a second connection terminal 12 is disposed on the other side of the circuit breaker unit 10, the automatic reclosing device 20 includes a housing 21, an intelligent control circuit board 22 disposed in the housing 21, an electric operating mechanism 23 disposed in the housing 21 and used for driving the circuit breaker unit 10 to open or close, and an electromagnetic trip mechanism 24 disposed in the housing 21, and the electromagnetic trip mechanism 24 includes an electromagnetic trip 241 electrically connected to the intelligent control circuit board 22, a push plate 243 movably disposed in the housing 21 and cooperatively engaged with an ejector 242 of the electromagnetic trip 241, and a push plate 243 movably disposed in the housing 21, The spring 244 arranged between the push plate 243 and the shell 21 and the tripping plate 245 which is rotatably arranged on the shell 21 and is matched with the tripping shaft 13 of the circuit breaker unit 10, the push plate 243 moves along with the ejector rod 242 and can push the tripping plate 245 to rotate, the tripping plate 245 can trip the tripping shaft 13 to move, and the leakage tripping and the brake separating of the circuit breaker unit 10 can be realized. The shell 21 is provided with a guide groove 211 corresponding to the push plate 243, two sides of the push plate 243 are respectively provided with a guide convex strip 2431, the guide convex strips 2431 are clamped in the guide groove 211, the guide convex strips 2431 move along with the push plate 243 and can slide in the guide groove 211 in a reciprocating manner, and one end of the guide groove 211 is respectively provided with two limiting blocks 246 in limiting fit with the two guide convex strips 2431. The direction sand grip block of push pedal is in the guide way to the assembly of the push pedal of being convenient for and casing, the assembly is more convenient, and can guarantee that the push pedal can reliably move, thereby is favorable to improving this electromagnetism tripping device's operational reliability. The shell 21 is provided with a limiting groove 212 corresponding to the limiting block 246, and the limiting block 246 is clamped in the limiting groove 246 and forms clamping fit of the limiting block 246 and the shell 21. The limiting block is clamped in the limiting groove, so that the limiting block and the shell are convenient to assemble, and the assembly is more convenient.

As shown in fig. 2 and 4, the metering module 30 includes a plastic casing 31 disposed on one side of the circuit breaker unit 10, a metering circuit board 32 disposed in the plastic casing 31 and connected to the intelligent control circuit board 22, and a plurality of magnetic rings 33 disposed on the metering circuit board 32, through holes 300 for passing through wires are respectively disposed on the plastic casing 31 and the metering circuit board 32 at positions corresponding to the magnetic rings 33, and the wires pass through the plastic casing 31, the magnetic rings 33, and the metering circuit board 32 and are connected to the first connection terminals 11. The metering module is designed in a modular structure, so that the metering module and the circuit breaker unit can be assembled conveniently, the metering module can monitor a circuit, and the metering function of the automatic reclosing residual current circuit breaker can be realized. The metering circuit board 32 is provided with a conducting strip 34, one end of the conducting strip 34 is abutted against the first wiring terminal 11, and the metering circuit board 32 is electrically connected with the first wiring terminal 11. Be provided with the conducting strip that contacts with first binding post on the measurement circuit board to be convenient for the assembly of measurement module and circuit breaker unit, it is more convenient to assemble.

As shown in fig. 2 and 5, the earth leakage protection module 40 includes a housing 41 disposed on the other side of the circuit breaker unit 10, an earth leakage protection circuit board 42 disposed in the housing 41 and connected to the intelligent control circuit board 22, and a zero sequence transformer 43 disposed on the earth leakage protection circuit board 42, where threading holes 400 through which external wires can pass are disposed on the housing 41 and the earth leakage protection circuit board 42 corresponding to the zero sequence transformer 43, respectively, and the external wires can pass through the housing 41, the zero sequence transformer 43, the earth leakage protection circuit board 42 and connected to the second connection terminal 12. The leakage protection module is designed in a modular structure, so that the leakage protection module and the circuit breaker unit are convenient to assemble, the assembly is more convenient, the leakage protection module can monitor a leakage signal in a circuit, and the leakage protection function of the automatic reclosing leakage protection circuit breaker can be realized. The earth leakage protection circuit board 42 is provided with a power taking piece 44, one end of the power taking piece 44 is abutted against the second wiring terminal 12, and the earth leakage protection circuit board 42 is electrically connected with the second wiring terminal 12. Be provided with the piece of getting electricity that contacts with second binding post on the electric leakage circuit board to the assembly of the earth leakage protection module of being convenient for and circuit breaker unit, the assembly is more convenient.

As shown in fig. 6 and 7, a second embodiment of the present invention is an automatic reclosing earth leakage protection circuit breaker with a metering function, and the second embodiment is different from the first embodiment in that the circuit breaker unit of the second embodiment is in a 2P structure, while the circuit breaker unit of the first embodiment is in a 4P structure, 1 magnetic ring is arranged on the metering circuit board of the metering protection module of the second embodiment, and 3 magnetic rings are arranged on the metering circuit board of the metering protection module of the first embodiment.

Be provided with metering module and earth leakage protection module on the both sides of circuit breaker unit respectively, thereby can realize this automatic reclosing earth leakage protection circuit breaker's measurement, the earth leakage protection function, and metering module, earth leakage protection module adopts the modularized design, thereby be convenient for metering module, the assembly of earth leakage protection module and circuit breaker unit, it is more convenient to assemble, and be provided with electromagnetic tripping mechanism in the automatic reclosing device, electromagnetic tripping mechanism's electromagnetism release can promote the push pedal action, the push pedal can promote the dropout and dial the board, the dropout dials the board and can drive the action of trip shaft, thereby can realize the earth leakage dropout separating brake of circuit breaker unit. Therefore, the automatic reclosing residual current circuit breaker has the advantages of simple structure, stable and reliable performance, small volume, convenience and quickness in assembly and low cost.