CN106981827A - Metering auxiliary device and intelligent breaker based on breaker - Google Patents

Abstract

The invention provides a metering auxiliary device based on a circuit breaker and an intelligent circuit breaker. The incoming line end of the circuit breaker includes a first card slot, a second card slot and an electrical connection port. The metering module is detachably installed on the incoming line. At the end, the metering and installation module includes a circuit carrier board, a circuit module, a casing, a card fitting and a locking piece. The circuit carrier board has a first through hole and a second through hole, the circuit module is fixed on the circuit carrier board and has a power-taking terminal, and the casing has a The first buckle and the locking hole, the first buckle passes through the first through hole and engages in the first card slot, the snap fitting passes through the second through hole and engages in the second card slot, and the locking member passes through the locking hole And the second through hole is locked on the clip fitting, and the power-taking terminal is used to electrically connect to the circuit breaker. Based on the traditional circuit breaker and distribution box, the present invention can conveniently and quickly complete the installation and transformation of intelligent metering auxiliary parts at a lower cost, and occupies less space and is firmly fixed.

Description

Circuit Breaker-Based Metering Auxiliary Device and Intelligent Circuit Breaker

technical field

The invention relates to the field of circuit breakers, in particular to a metering auxiliary device based on a circuit breaker and an intelligent circuit breaker.

Background technique

With the development of global intelligent manufacturing and the Internet of Things in power systems, whether it is power generation, transmission, distribution or power consumption, intelligent requirements for monitoring, control, and protection have been put forward. Circuit breakers, as port appliances of electrical equipment, have long been widely used to undertake the functions of electrical switches and protection against abnormal power conditions such as overcurrent, short circuit, and leakage. Intelligent circuit breaking equipment can organically combine traditional circuit breakers, remote control, smart metering and related interfaces to provide meter data such as active power, reactive power, current, voltage, power factor, etc. These fine-grained power consumption data provide energy management. Important scientific basis, and can be remotely controlled according to management needs.

But at present, there are a large number of non-intelligent equipment and circuit breakers in the production and living fields such as industrial and mining enterprises, household appliances, etc. For a long period of time, it is very expensive to completely replace these production and living equipment or traditional circuit breakers in large numbers , and will cause great inconvenience to production and life.

Therefore, how to make these "dumb devices" in the original power system intelligent, that is, to install metering devices as low-cost, convenient and reliable as possible on the basis of the original circuit breakers and distribution boxes, has become an urgent need. Solved and valuable innovation issues.

Contents of the invention

In view of the above technical problems, the object of the present invention is to provide a metering auxiliary device based on a circuit breaker and an intelligent circuit breaker that occupy less space, are convenient to install, and are securely connected.

A metering auxiliary device based on a circuit breaker according to the present invention, the circuit breaker has an incoming line end, and the incoming line end includes a first card slot, a second card slot and an electrical connection port; the metering auxiliary device is detachably installed on the circuit breaker The metering auxiliary device includes a circuit carrier board, a circuit module, a first shell, a clip fitting and a locking piece, and the circuit module is arranged between the circuit carrier board and the first shell. Wherein, the circuit carrier has a first through hole and a second through hole, the circuit module is fixed on the circuit carrier and the circuit module has a power-taking terminal, the first shell has a first buckle and a locking hole, and the first buckle passes through the circuit The first through hole of the carrier board and the first buckle are engaged with the first slot of the circuit breaker, the snap fitting corresponds to the second through hole of the circuit carrier board and the snap fitting is engaged with the second snap slot of the circuit breaker, and the locking member is inserted into the second slot of the circuit breaker. Through the locking hole and the second through hole and the locking piece is locked to the clip fitting, the power-taking terminal is electrically connected to the circuit breaker through the power connection port of the circuit breaker.

Preferably, the clamping fitting includes a boss body, an elastic arm and an abutting portion, the boss body has a through hole that is locked and fitted with the fastener, the elastic arms are arranged on both sides of the boss body, and the tail end of the elastic arm has a The abutting portion of the hook matched with the second locking groove is connected to the tail end of the elastic arm, and the abutting portion is squeezed by the locking element when the locking element passes through the central through hole to expand the elastic arm.

Preferably, the circuit module includes a first integrated circuit board and a second integrated circuit board stacked along the height direction of the circuit breaker, the first integrated circuit board is provided with a first through hole corresponding to the locking hole of the first housing, and the second integrated circuit board The integrated circuit board is provided with a second through hole corresponding to the locking hole of the first shell, and the locking member is screwed into the middle through hole after passing through the locking hole, the first through hole and the second through hole. Further, the inner edge of the circuit carrier board and/or the first casing has a plurality of stepped pillars, and the plurality of stepped pillars are respectively gradiently supported on the edge of the first integrated circuit board and the edge of the second integrated circuit board.

Preferably, the first housing includes a main housing and an auxiliary housing, the main housing and the auxiliary housing are arranged side by side along the length direction of the circuit breaker, and the circuit module is arranged between the circuit carrier board and the main housing. Further, the wire inlet end also includes a third card slot, the third card slot and the power connection port are arranged side by side along the width direction of the circuit breaker, the first card slot and the third card slot are arranged side by side along the length direction of the circuit breaker; the auxiliary housing has The second buckle and the power connection opening, the second buckle is engaged with the third slot of the circuit breaker, and the corresponding ring of the power connection opening is arranged at the power connection port of the circuit breaker. Further, the main casing and the auxiliary casing are separable independent casings; or, the main casing and the auxiliary casing are integrally formed.

Preferably, the main shell of the first shell has a power-taking opening for passing the power-taking terminal and a connection opening for passing the external connection wire, and the connection opening and the power-taking opening are respectively arranged on On opposite sides of the main housing, the locking holes are located between the connection opening and the power-taking opening.

Preferably, the power-taking terminal is a copper plug.

The present invention provides an intelligent circuit breaker, including the metering auxiliary device based on the circuit breaker as described above.

Preferably, the circuit breaker is a multi-pole circuit breaker.

The present invention also provides a metering auxiliary device based on a circuit breaker. The circuit breaker includes an input part having a first surface and a second surface. The slot and the second card slot are arranged on the first surface of the input part, and the power-taking port is arranged on the second surface of the input part; the metering auxiliary device includes a metering installation module and a power-taking module. The metering addition module is detachably installed on the first surface of the input part, the metering addition module includes a circuit carrier board, a circuit module, a first housing, a card fitting and a locking piece, and the circuit module is arranged on the circuit carrier board and the first case between bodies. The power-taking module is detachably installed on the second surface of the input part. The power-taking module includes a power-connecting pin extending into the power-taking port and a power-connecting piece facing the circuit carrier. The power-taking piece is electrically connected to the power-connecting pin. Wherein, the circuit carrier has a first through hole and a second through hole, the circuit module is fixed on the circuit carrier and the circuit module has a power-taking shrapnel, the first housing has a first buckle and a locking hole, and the first buckle passes through the The first through hole of the circuit carrier board and the first buckle are engaged with the first slot of the circuit breaker, the snap fitting corresponds to the second through hole of the circuit carrier board and the snap fitting is engaged with the second snap slot of the circuit breaker, and the locking member Through the locking hole and the second through hole and the locking piece is locked to the snap fitting, the power-taking shrapnel abuts against the power-connecting piece of the power-taking module to be electrically connected to the circuit breaker.

Preferably, the clamping fitting includes a boss body, an elastic arm and an abutting portion, the boss body has a through hole that is locked and fitted with the fastener, the elastic arms are arranged on both sides of the boss body, and the tail end of the elastic arm has a The abutting portion of the hook matched with the second locking groove is connected to the tail end of the elastic arm, and the abutting portion is squeezed by the locking element when the locking element passes through the central through hole to expand the elastic arm.

Preferably, the metering and adding module further includes a second housing, and the first housing and the second housing are arranged side by side on the first surface of the input part along the length direction of the circuit breaker. Further, the input part also includes a third card slot, and the first card slot and the third card slot are arranged side by side along the length direction of the circuit breaker; the second housing has a second buckle, and the second buckle is engaged with the first card slot of the circuit breaker Three card slots.

Preferably, the first shell and the second shell are integrally formed; or, the first shell and the second shell are detachable independent structures.

Preferably, the power-taking module is a pogo pin connector, and the power-connecting pin and the power-connecting piece respectively constitute an input end and an output end of the pogo pin connector. Further, the power-taking module has a bottom case, a spring and a cover plate, the bottom case includes a guide cylinder, the spring is arranged in the guide cylinder of the bottom case, one end of the spring abuts against the electric needle, the other end abuts against the cover plate, and The electric sheet has a first bending part and a second bending part. The first bending part is passed through the spring, and the second bending part is bent and extended to the outside of the bottom case to electrically connect the power-taking shrapnel of the circuit module. The cover The board is fixed to the bottom case. Further, the power-taking module also has a screw connection, the cover plate has a fixing hole and a slot, the bottom case has a screw hole and a hook, the screw connection passes through the fixing hole and is screwed into the screw hole, and the hook of the bottom case Buckle in the card slot of the cover plate.

Preferably, neither the metering addition module nor the power taking module has a width greater than that of the circuit breaker.

The present invention also provides an intelligent circuit breaker, including the metering auxiliary device based on the circuit breaker as described above.

Preferably, the circuit breaker is a 2-pole circuit breaker, a 3-pole circuit breaker or a 4-pole circuit breaker.

Compared with the prior art, the metering auxiliary device based on the circuit breaker and the intelligent circuit breaker of the present invention can be based on the traditional circuit breaker and distribution box at a lower cost through the innovative design of mechanical connection and electrical connection. It is cost-effective and convenient to complete the installation and transformation of the intelligent metering module, and it occupies a small space and is fixed firmly, which is very suitable for the mass promotion and application of intelligent circuit breakers.

Description of drawings

Fig. 1 is a schematic structural diagram of a metering auxiliary device based on a circuit breaker according to a first embodiment of the present invention.

Fig. 2 is a schematic diagram of installation of a metering auxiliary device based on a circuit breaker according to the first embodiment of the present invention.

Fig. 3 is a schematic structural view of the metering and adding module of the first embodiment of the present invention before partial assembly.

Fig. 4 is a schematic diagram of the partially assembled metering and adding module of the first embodiment of the present invention.

FIG. 5 is a schematic structural diagram of a card fitting in an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of an intelligent circuit breaker according to a second embodiment of the present invention.

Fig. 7 is a schematic structural diagram of an auxiliary housing according to a second embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a metering auxiliary device based on a circuit breaker according to a third embodiment of the present invention.

Fig. 9 is a schematic diagram of installation of a circuit breaker-based metering auxiliary device according to a third embodiment of the present invention.

Fig. 10 is a schematic diagram of the partially assembled metering and adding module of the third embodiment of the present invention.

FIG. 11 is a schematic structural diagram of a power-taking module in an embodiment of the present invention.

Fig. 12 is a schematic structural diagram of an intelligent circuit breaker according to a fourth embodiment of the present invention.

Fig. 13 is a schematic structural diagram of an intelligent circuit breaker according to a fifth embodiment of the present invention.

Fig. 14 is a schematic diagram of the installation of the smart circuit breaker according to the fifth embodiment of the present invention.

detailed description

In order to have a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed descriptions are provided in conjunction with the embodiments.

Please refer to FIG. 1 and FIG. 2 in combination. FIG. 1 is a schematic structural diagram of a metering auxiliary device based on a circuit breaker according to the first embodiment of the present invention, and FIG. 2 is a schematic diagram of a metering auxiliary device based on a circuit breaker according to the first embodiment of the present invention. Installation diagram. In this embodiment, the main body of the metering auxiliary device corresponds to the metering addition module 2 , and the circuit breaker 1 and the metering addition module 2 can constitute an intelligent circuit breaker 100 . In practical applications, the circuit breaker 1 may be a miniature circuit breaker, or a molded case or frame circuit breaker.

The circuit breaker 1 has a wire inlet 10 , and the wire inlet 10 includes a first card slot 11 , a second card slot 12 and an electrical connection port 13 . Preferably, the wire inlet 10 is located at the top of the circuit breaker 1 along the height direction H of the circuit breaker, and the first locking slot 11 and the second locking slot 12 are arranged side by side along the width direction W of the circuit breaker. Preferably, the incoming line terminal 10 is the input terminal of the circuit breaker 1, and the power at the input terminal is not controlled by the circuit breaker 1 itself. Therefore, setting the metering module 2 at the input terminal is more conducive to remote monitoring of the state of the intelligent circuit breaker 100 .

The metering and adding module 2 is detachably installed on the incoming line end 10 of the circuit breaker 1 . Preferably, the metering and adding module 2 has a width not greater than that of the circuit breaker 1 . The above width refers to the lateral distance along the width direction W of the circuit breaker. In practical applications, the width of the metering module 2 is consistent with that of the circuit breaker 1. For existing power distribution cabinets or distribution boxes, the original circuit breaker can be directly replaced without adding additional installation space in width.

The metering and adding module 2 includes a circuit carrier 21 , a circuit module 22 , a first housing 23 , a snap fitting 24 and a locking member 25 , and the circuit module 22 is disposed between the circuit carrier 21 and the first housing 23 . In one embodiment, the first housing 23 includes a main housing 230 and an auxiliary housing 239, the main housing 230 and the auxiliary housing 239 are arranged side by side along the length direction L of the circuit breaker, and the circuit module 22 is arranged on the circuit carrier board 21 and the main housing. Between the housing 230. In the present invention, the height direction H of the circuit breaker, the width direction W of the circuit breaker and the length direction L of the circuit breaker are perpendicular to each other.

Please further refer to Fig. 3 and Fig. 4 in combination. Fig. 3 is a schematic structural diagram of the metering and adding module 2 of the first embodiment of the present invention before assembly, and Fig. 4 is a part of the metering and installing module of the first embodiment of the present invention after 2 parts are assembled. Schematic diagram of the structure. The circuit carrier 21 has a first through hole 211 and a second through hole 212. The circuit module 22 is fixed on the circuit carrier 21 and the circuit module 22 has a power-taking terminal 221. The first shell 23 has a first buckle 231 and a locking hole 232. And the power-taking opening 233, the first buckle 231 passes through the first through hole 211 of the circuit carrier board 21 and the first buckle 231 is engaged with the first card slot 11 of the circuit breaker 1, and the snap fitting 24 corresponds to the circuit carrier board 21 through the second through hole 212 and the snap fitting 24 is engaged in the second card slot 12 of the circuit breaker 1, the locking member 25 passes through the locking hole 232 and the second through hole 212, and the locking member 25 is locked on the snap fitting 24. The electrical terminal 221 passes through the power-taking opening 233 and bends around the circuit carrier board 21 to extend into the electrical connection port 13 of the circuit breaker 1 for electrically connecting the circuit breaker 1 and the metering module 2 . It should be noted that the power-taking terminal 221 is presented separately in the power-connecting port 13 in FIG. 221 is fixed on the power connection port 13. In practical applications, the power-taking terminal 221 is welded and fixed on the printed circuit board of the circuit module 22, and then inserted into the power connection port 13 along with the metering module 2 during installation. The electrical terminal 221 is in contact with the locking pole of the circuit breaker 1 to realize the electrical connection between the circuit breaker 1 and the circuit module 22 in the metering module 2 .

In one embodiment, the wire inlet terminal 10 further includes a third card slot 14, the third card slot 14 and the power connection port 13 are arranged side by side along the width direction W of the circuit breaker, and the first card slot 11 and the third card slot 14 are arranged along the circuit breaker. The device length direction L is arranged side by side. The auxiliary housing 239 has a second buckle 261 and a power connection opening 262. The second buckle 261 is engaged with the third slot 14 of the circuit breaker 1. Mouth 13.

Taking the three-pole intelligent circuit breaker shown in Fig. 2 and Fig. 3 as an example, the incoming terminal 10 has two first slots 11, two third slots 14 and three slots arranged along the width direction W of the circuit breaker. The electrical port 13, the second card slot 12 is arranged between the two first card slots 11, and the three electrical ports 13 are arranged between the two third card slots 13; the circuit board 21 has two first through holes 211, the circuit module 22 has three power-taking terminals 221, the main housing 230 of the first housing 23 has two first buckles 231 and three power-taking openings 233, and the two first buckles 231 respectively pass through the two The first through-hole 211 is engaged with the two first card slots 11 respectively, and the three power-taking terminals 221 are respectively bent and extended into the three power-connecting ports 13 through the three power-taking openings 233; The auxiliary housing 239 has two second buckles 261 and three power connection openings 262, the two second buckles 261 are respectively engaged with the two third card slots 14, and the three power connection holes 262 are respectively corresponding to the ring Set in three electrical outlets 13 . The number of relevant components of the present invention is not limited thereto, but the above design can make full use of the slot structure of the existing circuit breaker, and is easy to install and low in installation cost.

Continuing to refer to FIG. 3 , in practical applications, the first housing 23 also has a connection opening 234 for passing an external connection line, and the connection opening 234 and the power-taking opening 233 are respectively provided in the main housing 230 On opposite sides, the locking hole 232 is located between the connection hole 234 and the power-taking hole 233 .

In practical applications, the power-taking terminal 221 may be a copper plug. The use of plug-in plug connection facilitates the installation of a metering module on the original circuit breaker of the distribution cabinet or distribution box, and the cost of realizing the electrical connection between the circuit breaker 1 and the metering installation module 2 is relatively low.

Preferably, the circuit module 22 includes a first integrated circuit board 222 and a second integrated circuit board 223 stacked along the height direction H of the circuit breaker, and the first integrated circuit board 222 is provided with a first through hole 225 at the corresponding locking hole 232 , the second integrated circuit board 223 is provided with a second through hole 226 at the place corresponding to the locking hole 232, and the locking member 25 passes through the locking hole 232, the first through hole 225, the second through hole 226 and the second through hole 212 in turn. Screw in the card fitting24.

Please continue to refer to FIG. 3 , preferably, the inner edge of the circuit carrier board 21 and/or the main housing 230 has a plurality of stepped pillars 213, and the plurality of stepped pillars 213 are respectively gradiently supported on the edge and the edge of the first integrated circuit board 222. The edge of the second integrated circuit board 223 is used to realize the board spacing control of the circuit carrier board 21, the first integrated circuit board 222, the second integrated circuit board 223 and the first shell 23, so that the metering module 2 meets the electronic design requirement. Under the premise of function, it occupies as little space as possible. Preferably, a heat dissipation grid 214 may also be provided on the circuit carrier 21 for heat dissipation and ventilation of the circuit module 22 , but the present invention is not limited thereto.

In practical applications, the locking member 25 may be a screw or a bolt, such as a commonly used screw connection such as a self-tapping screw. Preferably, the length of the locking member 25 should not be less than the distance from the locking hole 232 of the first housing 23 to the second slot 12 of the circuit breaker 1, and the locking member 25 will pass through the first housing 23, the circuit Module 22, circuit carrier board 21 and clip fittings 24, so that the fixed connection between the metering module 2 itself and the circuit breaker 1 is more reliable.

Please refer to FIG. 5 , which is a schematic structural diagram of the clip fitting 24 in an embodiment of the present invention. The clip fitting 24 includes a boss body 241, an elastic arm 242 and an abutment portion 243. The boss body 241 has a through hole 240 that is locked and fitted with the locking member 25. The elastic arms 242 are arranged on both sides of the boss body 241, elastically The rear end of the arm 242 has a hook 244 that matches the second slot 12, and the abutting portion 243 is connected to the tail end of the elastic arm 242. Squeeze to expand the elastic arm 242 . Such a structure enables the hook 244 to be locked in the second slot 12 with an interference fit after the locking piece 25 is screwed into the locking piece 24, thereby enhancing the firmness of fixing between the circuit breaker 1 and the metering module 2, and Easy to remove and install. Preferably, the snap fitting 24 may also include a reinforcing rib (not shown) connected between the abutting portion 243 and the boss body 241 to increase the mechanical strength of the abutting portion 243 and prevent the abutting portion 243 from being locked by the locking member 25 Squeeze and break.

Please refer to FIG. 2 , FIG. 4 and FIG. 5 . In one embodiment, the locking member 25 passes through the locking hole 232 and the second through hole 212 and then is screwed into the through hole 240 of the clip fitting 24 .

Please refer to FIG. 6 and FIG. 7, FIG. 6 is a schematic structural diagram of a smart circuit breaker 200 according to a second embodiment of the present invention, and FIG. 7 is a schematic structural diagram of an auxiliary housing 26 according to a second embodiment of the present invention. In different embodiments, the main housing 230 and the auxiliary housing 26 of the first housing 23 are separate and independent housings, compared with the integral molding of the main housing 230 and the auxiliary housing 239 in the foregoing embodiments structure, the detachable structure of this embodiment is more convenient for the installation of metering and adding modules. Components that are the same as or similar to those in the foregoing embodiments are denoted by the same reference numerals, and will not be repeated here. As shown in FIG. 7 , the auxiliary housing 26 has a second buckle 261 for engaging with the third slot 14 on the circuit breaker 1 and a power connection opening 262 , and the power connection opening 262 is correspondingly arranged on the circuit breaker 1 The electrical connection port 13. The function of the auxiliary housing 26 is mainly to support the main housing 230, protect the wiring, and make the overall appearance more beautiful.

Please refer to FIG. 8 and FIG. 9 in combination. FIG. 8 is a schematic structural diagram of a metering auxiliary device based on a circuit breaker according to a third embodiment of the present invention, and FIG. 9 is a schematic diagram of a metering auxiliary device based on a circuit breaker according to a third embodiment of the present invention. Installation diagram. In this embodiment, the main body of the metering auxiliary device corresponds to the metering and adding module 4 and the power-taking module 5 , and the circuit breaker 3 , the metering and adding module 4 and the power-taking module 5 can constitute an intelligent circuit breaker 300 . In practical applications, the circuit breaker 3 may be a miniature circuit breaker, or a molded case or frame circuit breaker.

The circuit breaker 3 includes an input part 30 having a first surface 301 and a second surface 302, the input part 30 includes a first card slot 31, a second card slot 32 and a power outlet 33, and the first card slot 31 and the second card slot 32 is disposed on the first surface 301 of the input portion 30 , and the power inlet 33 is disposed on the second surface 302 of the input portion 30 . Preferably, the first surface 301 is located at the top of the circuit breaker 3 along the height direction H of the circuit breaker, the second surface 302 is substantially perpendicular to the first surface 301, and the first card slot 31 and the second card slot 32 are along the width direction of the circuit breaker. The Ws are arranged side by side on the first surface 301 of the input portion 30 .

The metering and adding module 4 is detachably installed on the first surface 301 of the input part 30 . Preferably, the width of the metering and adding module 4 is not greater than the width of the circuit breaker 3, and the above-mentioned width refers to a lateral distance along the width direction W of the circuit breaker. The metering and adding module 4 includes a circuit carrier 41 , a circuit module 42 , a first housing 43 , a snap fitting 44 and a locking member 45 , and the circuit module 42 is disposed between the circuit carrier 41 and the first housing 43 .

The power-taking module 5 is detachably installed on the second surface 302 of the input portion 30 . Preferably, the width of the power-taking module 5 is not greater than the width of the circuit breaker 3; The power distribution cabinet or distribution box can be directly installed on the original circuit breaker without adding additional installation space in width. The power-taking module 5 includes a power-connecting pin 51 protruding into the power-taking port 33 and a power-connecting piece 52 facing the circuit carrier 41 . The contact sheet 52 is electrically connected to the contact pin 51 .

Please further refer to FIG. 10 . FIG. 10 is a schematic diagram of the partially assembled metering and adding module 4 according to the third embodiment of the present invention. The circuit carrier 41 has a first through hole 411, a second through hole 412 and a power-taking through hole 413, the circuit module 42 is fixed on the circuit carrier 41 and the circuit module 42 has a power-taking shrapnel 421, and the first housing 43 has a first buckle 431 and locking hole 432, the first buckle 431 passes through the first through hole 411 of the circuit carrier 41 and the first buckle 431 is engaged in the first slot 31 of the circuit breaker 3, and the snap fitting 44 corresponds to the circuit carrier 41 through the second through hole 412 and the snap fitting 44 is engaged in the second slot 32 of the circuit breaker 3, the locking member 45 passes through the locking hole 432 and the second through hole 412, and the locking member 45 is locked on the snap fitting 44, take The electric elastic piece 421 passes through the power-taking hole 413 and abuts against the power-connecting piece 52 of the power-taking module 5 for electrically connecting the circuit breaker 3 and the circuit module 42 . In this embodiment, the power-taking module 5 is an independent unit, which is connected with the circuit breaker 3 and the metering module 4 by elastic contact, and can be removed independently, which is convenient for the maintenance of the intelligent circuit breaker 300 and non-stop power supply. retrofit.

In this embodiment, the structure of the snap fitting 44 can be the same as or substantially similar to that of the snap fitting 24 in the above-mentioned embodiment, and the structure of the locking member 45 can be the same as or substantially similar to that of the locking member 25 in the above-mentioned embodiment, so This is repeated. The main structure of the circuit module 42 can also be similar to the main structure of the circuit module 22 in the embodiment shown in Figure 3, such as adopting a double-layer integrated circuit board structure, the main difference is that the position of the power-taking shrapnel 421 is adjusted according to the needs of component installation . In practical applications, the power-taking shrapnel 421 can be soldered and fixed on the printed circuit board of the circuit module 42. After the power-taking module 5 is installed, the power-taking shrapnel 421 is in elastic contact with the power-connecting piece 52 of the power-taking module 5 to realize The electrical connection between the circuit breaker 3 and the circuit module 42 in the metering and adding module 4 .

In practical applications, the metering and adding module 4 further includes a second housing 46 , and the first housing 43 and the second housing 46 are arranged side by side on the first surface 301 of the input part 30 along the length direction L of the circuit breaker. In the present invention, the height direction H of the circuit breaker, the width direction W of the circuit breaker and the length direction L of the circuit breaker are perpendicular to each other.

Please continue to refer to FIG. 9 and FIG. 10, the input part 30 also includes a third card slot 34, the first card slot 31 and the third card slot 34 are arranged side by side along the length direction L of the circuit breaker; the second housing 46 has a second card lock 461 , the second buckle 461 is engaged with the third locking slot 34 of the circuit breaker 3 . The function of the second housing 46 is mainly to support the first housing 43 , protect the wiring, and generally be more beautiful.

In practical applications, the power-taking module 5 is a pogo pin connector, and the power-connecting pin 51 and the power-connecting piece 52 respectively constitute the input end and the output end of the pogo pin connector. The power-connecting pin 51 of the power-taking module 5 directly takes power from the terminal screw position in the power-taking port 33 of the circuit breaker 3 .

The intelligent circuit breaker 300 in this embodiment can be installed without power interruption on the basis of the traditional circuit breaker. The non-power-off here means that the circuit breaker has been installed in the power distribution cabinet or distribution box to protect the electrical equipment behind it, and some important electrical equipment is not allowed to be installed in the power-off state. According to the design principle in this embodiment, the following installation process can be adopted: the snap fitting 44 is snapped into the second slot 32 of the circuit breaker 3, and the other parts of the metering and installation module 4 are correspondingly installed on the input part 30 of the circuit breaker The first surface 301 of the metering and adding module 4 is passed through other parts of the metering and adding module 4 with a locking member 45 and fixedly connected to the clip fitting 44 already on the circuit breaker 3, thereby fixing the metering and adding module 4; preferably, the second Two housings 46, encase the wires of the circuit breaker 3, and reinforce the other parts of the metering module 4; finally, insert the power-taking module 5 into the second surface 302 of the circuit breaker input part 30, and use the power-taking module 5 to measure The module 4 is added to take power, so that the non-stop transformation of the intelligent circuit breaker is completed.

Please refer to FIG. 9 , FIG. 10 and FIG. 11 in conjunction. FIG. 11 is a schematic structural diagram of the power-taking module 5 in an embodiment of the present invention. The power-taking module 5 has a bottom case 50, a spring 53 and a cover plate 54. The bottom case 50 includes a guide tube 55. The spring 53 is arranged in the guide tube 55 of the bottom case 50. One end of the spring 53 abuts against the electric connection needle 51, and the other end One end abuts against the cover plate 54, and the contact plate 52 has a first bent portion 521 and a second bent portion 522, the first bent portion 521 is passed through the spring 53, and the second bent portion 522 is bent and extended to the bottom The outside of the shell 50 is used to electrically connect the power-taking shrapnel 421 of the circuit module 42 , and the cover plate 54 is fixed on the bottom shell 50 . The purpose of the spring 53 is to ensure that the bottom connecting pin 51 effectively contacts the screw of the terminal in the circuit breaker 3, so as to solve the effective contact problem when the terminal screw of the multi-pole circuit breaker is not on a plane.

Preferably, the power-taking module 5 also has a screw 56, the cover plate 54 has a fixing hole 541 and a slot 542, the bottom case 50 has a screw hole 501 and a hook 502, the screw 56 passes through the fixing hole 541 and is screwed In the screw hole 501 , the hook 502 of the bottom case 50 is locked in the slot 542 of the cover 54 .

In different embodiments, the first housing 43 and the second housing 46 may be separate independent structures, or integrally formed. Please refer to FIG. 12 , which is a schematic structural diagram of a smart circuit breaker 400 according to a fourth embodiment of the present invention. The main difference between the fourth embodiment and the third embodiment is that the first shell 43' and the second shell 46' in this embodiment are integrally formed.

In all the above-mentioned embodiments of the present invention, the circuit breaker is preferably a multi-pole circuit breaker, such as a 2-pole circuit breaker, a 3-pole circuit breaker or a 4-pole circuit breaker. , but the present invention is not limited thereto. Please refer to FIG. 13 , which is a schematic structural diagram of a smart circuit breaker 500 according to a fifth embodiment of the present invention. One of the differences from the above embodiments is that the circuit breaker 6 in this embodiment is a 2-pole circuit breaker. It should be noted that there is no essential difference between the fixing mechanism and the electrical connection mode of the circuit breaker 6 and the metering auxiliary device 7 in this embodiment and the above-mentioned embodiment, and it is only necessary to adjust the power supply according to the number of the circuit breaker poles. The number of terminals or pogo pins is enough; in the embodiment of the 2-pole circuit breaker, the number of circuit breaker poles is 2, so the number of power-taking terminals or pogo pins is also 2.

Please refer to FIG. 13 and FIG. 14 in conjunction. FIG. 14 is a schematic diagram of installation of a smart circuit breaker 500 according to a fifth embodiment of the present invention. The smart circuit breaker 500 includes a circuit breaker 6 and a metering auxiliary device 7 . The circuit breaker 6 has an incoming line end 60 , and the incoming line end 60 is located at the top of the circuit breaker 6 . The metering auxiliary device 7 is detachably mounted on the wire inlet 60 of the circuit breaker 6 , and the metering auxiliary device 7 includes a main body module 70 , a snap fitting 71 and a locking member 72 . The main module 70 is fixed to the wire inlet 60 of the circuit breaker 6 through its own first hook 701 , the snap fitting 71 and the locking piece 72 . The main module 70 is electrically connected to the circuit breaker 6 through a power-taking terminal or a power-taking module (not shown in FIG. 14 ).

The metering auxiliary device 7 also includes an auxiliary housing 73, which is different from the above-mentioned embodiments in that the auxiliary housing 73 is fixed on the main module 70 through its own second hook 731 instead of being directly fixed on the inlet of the circuit breaker 6 . Wire end 60. This embodiment is applicable to the situation where there are not enough slots on the wire inlet end of the circuit breaker, and the auxiliary housing 73 can be used to support the main module, protect the wiring and make the whole look more beautiful.

In addition, whether the circuit breaker is a miniature circuit breaker, a molded case circuit breaker or a frame circuit breaker, in different embodiments, there is no essential difference in the fixing and electrical connection methods of the circuit breaker and the metering module, so the present invention It is not limited to this.

The metering auxiliary device based on the circuit breaker and the intelligent circuit breaker of the present invention, through the innovatively designed mechanical connection and electrical connection method, can be conveniently and quickly The installation and transformation of the intelligent metering module is completed, and it occupies a small space and is fixed firmly, which is very suitable for the mass promotion and application of intelligent circuit breakers.

In terms of the mechanical connection structure, the present invention integrates the metering auxiliary device with the traditional circuit breaker through the buckle on the metering addition module and the snap fitting and locking piece embedded in the circuit breaker. In solving the power supply of the metering auxiliary device, the present invention adopts two types of power-taking methods: one is to use the insert on the circuit module to directly connect the terminal lock in the electrical port of the circuit breaker; the other is to use a spring thimble The connector electrically connects the terminal screw in the power inlet of the circuit breaker with the shrapnel on the circuit module. In the embodiment of the present invention using the spring thimble connector, in addition to the aforementioned technical effects, it can also realize the transformation and modification of the intelligent circuit breaker without power failure.

The present invention has been described by the above-mentioned related embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, changes, combinations and modifications made without departing from the spirit and scope of the present invention all belong to the patent protection scope of the present invention.

Claims (20)

1. a kind of metering auxiliary device based on breaker, the breaker has end of incoming cables, the end of incoming cables includes the first neck, the Two draw-in groove and connect power port, it is characterised in that

The metering auxiliary device is removably installed in the end of incoming cables of the breaker, the metering auxiliary device include circuit board, Circuit module, the first shell, card accessory and locking part, the circuit module are arranged between the circuit board and first shell；

Wherein, the circuit board has the first perforation and the second perforation, and the circuit module is fixed on the circuit board and the electricity Road module has electricity taking terminal, and first shell has the first buckle and locking hole, and first buckle passes through the circuit board First perforation and first buckle are sticked in the first neck of the breaker, and what the card accessory corresponded to the circuit board second wears Hole and the card accessory are sticked in the second neck of the breaker, and the locking part is through the locking hole and second perforation and the locking Part is locked in the card accessory, and the electricity taking terminal is electrically connected at the breaker by the power port that connects of the breaker.

2. as claimed in claim 1 metering auxiliary device, it is characterised in that the card accessory include boss body, elastic arm and Butting section, the boss body has the middle through hole for locking with the locking part and coordinating, and the elastic arm is arranged at the two of the boss body Side, the tail end of the elastic arm has the snap fit coordinated with second neck, and the butting section is connected to the tail end of the elastic arm, and this is supported Relying part is extruded by the locking part when locking part passes through through hole in this and supports the swollen elastic arm.

3. auxiliary device is measured as claimed in claim 2, it is characterised in that the circuit module is included along breaker short transverse Folded the first surface-mounted integrated circuit and the second surface-mounted integrated circuit set, first surface-mounted integrated circuit to should the first shell locking hole Place is provided with the first perforation, and second surface-mounted integrated circuit at the locking hole of the first shell to that should be provided with the second perforation, the locking Part screws in through hole in this after passing through the locking hole, first perforation and second perforation.

4. metering auxiliary device as claimed in claim 3, it is characterised in that the circuit board and/or first shell it is interior Edge has multiple stepped pillars, the plurality of stepped pillar respectively gradient be supported in first surface-mounted integrated circuit edge and The edge of second surface-mounted integrated circuit.

5. auxiliary device is measured as claimed in claim 1, it is characterised in that first shell includes main casing and auxiliary housing, The main casing is arranged side by side with the auxiliary housing along breaker length direction, and the circuit module is arranged at the circuit board and the main casing Between body.

6. auxiliary device is measured as claimed in claim 5, it is characterised in that the end of incoming cables also includes the 3rd neck, the 3rd Neck and this connect power port and be arranged side by side along breaker width, first neck and the 3rd neck are along the breaker length side To being arranged side by side；The auxiliary housing, which has the second buckle and connect, establishes hole by cable, and second buckle is sticked in the 3rd neck of the breaker, This connect establish that hole correspondence is located on the breaker by cable connect power port.

7. auxiliary device is measured as claimed in claim 5, it is characterised in that the main casing and the auxiliary housing are separable only Vertical housing；Or, the main casing and the auxiliary housing are formed in one structure.

8. auxiliary device is measured as claimed in claim 5, it is characterised in that the main casing of first shell has to make this The power taking perforate that electricity taking terminal passes through and the line perforate pass through external line, the line perforate and the power taking perforate point The opposite sides end of the main casing is not arranged at, and the locking hole is located between the line perforate and the power taking perforate.

9. auxiliary device is measured as claimed in claim 1, it is characterised in that the electricity taking terminal is copper sheet plug.

10. a kind of intelligent breaker, it is characterised in that including as described in any one in claim 1-9 based on breaker Measure auxiliary device.

11. a kind of metering auxiliary device based on breaker, the breaker includes the input with first surface and second surface Portion, the input unit includes the first neck, the second neck and power taking mouthful, and first neck and second neck are arranged at the input unit First surface, power taking mouth is arranged at the second surface of the input unit；Characterized in that, the metering auxiliary device includes：

Metering install module additional, be removably installed in the first surface of the input unit, the metering install additional module including circuit board, Circuit module, the first housing, card accessory and locking part, the circuit module are arranged between the circuit board and first housing； And

Electricity-fetching module, is removably installed in the second surface of the input unit, and the electricity-fetching module is intraoral including stretching into the power taking Acusector and the power connecting sheet towards the circuit board are connect, the power connecting sheet is electrically connected at this and connects acusector；

Wherein, the circuit board has the first perforation and the second perforation, and the circuit module is fixed on the circuit board and the electricity Road module has power taking shell fragment, and first housing has the first buckle and locking hole, and first buckle passes through the circuit board First perforation and first buckle are sticked in the first neck of the breaker, and what the card accessory corresponded to the circuit board second wears Hole and the card accessory are sticked in the second neck of the breaker, and the locking part is through the locking hole and second perforation and the locking Part is locked in the card accessory, and the power taking shell fragment is resisted against the power connecting sheet of the electricity-fetching module to be electrically connected at the breaker.

12. auxiliary device is measured as claimed in claim 11, it is characterised in that the card accessory includes boss body, elastic arm And butting section, the boss body has the middle through hole for locking with the locking part and coordinating, and the elastic arm is arranged at the boss body Both sides, the tail end of the elastic arm has the snap fit coordinated with second neck, and the butting section is connected to the tail end of the elastic arm, should Butting section is extruded by the locking part when locking part passes through through hole in this and supports the swollen elastic arm.

13. auxiliary device is measured as claimed in claim 11, it is characterised in that module is installed in the metering, which additional, also includes second shell The first surface in the input unit is arranged side by side with second housing along breaker length direction for body, first housing.

14. metering auxiliary device as claimed in claim 13, it is characterised in that the input unit also includes the 3rd neck, and this One neck and the 3rd neck are arranged side by side along the breaker length direction；Second housing has the second buckle, second card Threeth neck of the buckle together in the breaker.

15. auxiliary device is measured as claimed in claim 13, it is characterised in that first housing and second housing are integrated Molding structure；Or, first housing and second housing are separable absolute construction.

16. auxiliary device is measured as claimed in claim 11, it is characterised in that the electricity-fetching module is spring ejector pin connector, This connects acusector and respectively constitutes the input and output end of the spring ejector pin connector with the power connecting sheet.

17. auxiliary device is measured as claimed in claim 16, it is characterised in that the electricity-fetching module has drain pan, spring and lid Plate, the drain pan includes guide, and the spring is arranged in the guide of the drain pan, and one end of the spring is connected to this and connects acusector, another End is connected to the cover plate, and the power connecting sheet has the first kink and the second kink, and first kink is arranged in the spring, should The bending of second kink extends to the power taking shell fragment that the circuit module is for electrically connecting to outside the drain pan, and the cover plate is fixed on this Drain pan.

18. auxiliary device is measured as claimed in claim 17, it is characterised in that the electricity-fetching module also has spiro connecting piece, the lid Plate has fixing hole and neck, and the drain pan has screw hole and snap fit, and the spiro connecting piece is through the fixing hole and is bolted in the screw In hole, the snap fit of the drain pan is snapped in the neck of the cover plate.

19. auxiliary device is measured as claimed in claim 11, it is characterised in that module and the electricity-fetching module are installed in the metering additional Width is all not more than the width of the breaker.

20. a kind of intelligent breaker, it is characterised in that including as described in any one in claim 11-19 based on breaker Metering auxiliary device.