CN109904042A - A kind of two pole breakers with the pole L and the pole N controlled by information - Google Patents

Abstract

A kind of two pole breakers with the pole L and the pole N controlled by information, at least three cavitys are equipped in its shell, handle is equipped at least three cavity, operating mechanism, tripping mechanism, moving contact and static contact, shunt release, magnetic release, thermal overload release, electronic control unit and wireless communication module, the wireless communication module is set on the electronic control unit, at least one current inductor is provided at least one cavity being set to below the breaker, dividing in the electronic control unit and divides electronic circuit board component at electronic circuit board component, the panel-level of described point of electronic circuit board component and the breaker is arranged, described point of electronic circuit board component is set to the current inductor front or at least one of rear portion or side position.

Description

A kind of two pole breakers with the pole L and the pole N controlled by information

Technical field

The present invention relates to Low Voltage Electrical Apparatus, relate more specifically to a kind of two poles with the pole L and the pole N controlled by information Breaker.

Background technique

Currently, national grid is realized to the fast development of intelligent power distribution direction using technologies such as Internet of Things, digitlizations The intelligence of low-voltage distribution network, the transparent management for improving low-voltage distribution network " last one kilometer " equipment and electricity consumption is horizontal, improves power supply Quality and reliability, this requires breakers other than having normal distributor protection function, at the same also to have " remote signalling ", " four is distant " function of " telemetering ", " remote regulating ", " remote control ".

In order to meet the needs of national grid intelligent development, embody hommization and protection power grid security, need by disconnected Road device carries out real-time monitoring to the electric current of residual current, major loop in resident and the on off operating mode of breaker, and will monitor Data upload in real time, while grid service center can carry out the operation of selectivity according to the residual current value that monitors: only mention Wake up user and without in circuit residual current protecting or by communication command force disconnect circuit carry out residual current guarantor Breaker carries out residual current protecting in circuit automatically when protecting or reaching certain setting value；Higher level's communication module is also needed according to disconnected The internal temperature and loop current data of road device are analyzed, and determine that scene leads to breaker with the presence or absence of the virtual connection of major loop route Internal temperature is excessively high and then damages the failure of breaker；Higher level's communication module is required to the voltage in real-time monitoring breaker circuit Value, the long-range control combined floodgate or sub-switching operation that remote upgrade can be carried out to the correlation function of breaker, can be realized breaker Etc. functions, with the continuous development of smart grid, functional requirement is increasing.

It is corresponding to it, the existing resident in the whole nation is substantially all only with distribution box to be had overload protection, short-circuit protection and remain Aftercurrent protects the distribution box of traditional function, does not catch up with the demand of intelligent development much, at present the distribution box of traditional function Quantity be averaged every province not less than 2,000,000, there are about the traditional folk houses distribution boxs of fifty-five million ~ 70,000,000 in the whole nation, for that can fit Intelligentized demand is answered, the distribution box needs of such vast number are updated during national grid intelligent development to be changed Generation.

Traditional mini-type residual current protective breaker, can only meet and carry out automatically when residual current value reaches setting value The portion requirements of residual current protecting in circuit cannot achieve other operational requirements of power supply bureau, to realize residual current prison Survey, main circuit current monitoring, State-Inspect of High-Voltage Circuit, circuit breaker internal temperature monitoring, main circuit voltage monitoring, route or equipment Overload and short-circuit protection, outside hub control breaker open or close the functions such as residual current protecting and supervise breaker The data measured realize the functions such as upload and remote upgrade, the remote switching of breaker or separating brake in real time, one of conventional solution Certainly scheme is the installation for needing additionally to increase related accessories, and needs to carry out external cabling, and erroneous for installation, occupied space is larger, The needs of the hommization and protection power grid security that are not able to satisfy in power supply bureau's intelligent development.

Another conventional solution is to improve design on the basis of existing two minimal types breaker, will be upper The institute stated is functional to be integrated into functional module, the functional module is mounted on to the inside of breaker, the function of demand is more, right The functional module answered is bigger.Due to the limitation of existing circuit breaker internal structure, there are two types of mentality of designing, mentalities of designing for such scheme 1 is arranged along the width direction of breaker, and required functional module is arranged in the side of circuit breaker operation mechanism, such Layout will not additionally increase the size of breaker length direction, but will increase the width of breaker, so as to cause in distribution box Need to occupy biggish space in width direction, distribution box inner space utilization rate is smaller；Mentality of designing 2 is the length along breaker Degree direction is arranged, and required functional module is arranged in the front or behind of circuit breaker operation mechanism, can not be increased in this way Add the width of breaker, but need to increase the length of breaker, since functional module is more, if meeting all functional requirement meetings Very big length space is occupied, generally can be more than 110mm, but general distribution box requires the length dimension requirement of breaker 110mm is not exceeded.

In conclusion the solution of both the above routine, will lead in the whole country existing resident's distribution box without Method, which meets, to be used, and needs to redesign the bigger distribution box of dimensional space to meet the installation needs of functional intellectualization breaker. About 5000 yuan -8000 yuan of the cost of each distribution box, if being redesigned to existing resident's distribution box, one side cost compared with The loss of height, economically bring is huge, and each province about loses 10,000,000,000 ~ 16,000,000,000 yuan, and the whole nation will lose 280,000,000,000 ~ 540,000,000,000 yuan； On the other hand because distribution box is needed to redesign, be made, related distribution line is also possible to readjust, so completing state Family's power grid distribution intelligentized time will greatly prolong；Further, since the workload of replacement resident's distribution box increases, when replacement Between it is longer, bring greater inconvenience to the democratic meeting of resident.

Therefore for low cost, the efficient function need for completing to meet above-mentioned national grid intelligence resident's distribution box Ask, be badly in need of it is a kind of it is small in size, function is more, width dimensions are no more than 36mm, length dimension no more than 110mm with a variety of intelligence Change the miniature circuit breaker of function.

Summary of the invention

In view of problem above, present invention employs a kind of unique technical solutions, and breaker is made both to have met above-mentioned function It can need, also meet the bulk requirement of distribution box.

The present invention is mainly achieved through the following technical solutions:

A kind of two pole breakers with the pole L and the pole N controlled by information, shell is interior to be equipped at least three cavitys, described Be equipped at least three cavitys handle, operating mechanism, tripping mechanism, moving contact and static contact, shunt release, magnetic release, Thermal overload release, electronic control unit and wireless communication module, the wireless communication module are set to the electronic control unit On, at least one current inductor, the electronic control are provided at least one cavity being set to below the breaker Dividing electronic circuit board component and divide electronic circuit board component in unit, electronic circuit board component and the breaker of dividing Panel-level setting, it is described that electronic circuit board component is divided to be set in the current inductor front or rear portion or side at least A kind of position.

Preferably, the side for dividing electronic circuit board component to be set to the current inductor, and can be along the breaker Length direction extend close to around the static contact of the pole N.

Preferably, described divide electronic circuit board component to may pass through the through-hole of power lead equipped at least one.

Preferably, the current inductor is at least one of current transformer, zero sequence transformer or Hall sensor.

Preferably, further including recloser mechanism, the recloser mechanism is extremely interior set on the N, described electronic Being overlapped brake mechanism includes gear transmission structure, and the recloser mechanism (17) is extremely interior set on N and along the width of the breaker It spends direction to be set between the part electronic circuit board component and static contact, the conductive part of the static contact is passed across the gear Dynamic structure.

Preferably, the shunt release can be set to the rear portion of release lever of the tripping mechanism, the magnetic release Internal, front or rear portion any position.

Preferably, the current inductor and the electronic control unit are electrically connected, current transformer or hall sensing Collected current data is transmitted to the electronic control unit by device, the electronic control unit according to the current transformer or The collected current value of Hall sensor and circuit-breaker switching on-off state judge the state of breaker.

Preferably, the state of the breaker includes on/off switch state, the on/off switch state can be according to detecting Circuit breaker load terminal voltage value carries out comprehensive descision, can also be integrated with position signal that binding site inductor acquires Judgement.

Preferably, the zero sequence transformer and the shunt release are electrically connected with the electronic control unit respectively, Higher level's communication module with wireless communication mode the electronic control unit preset residual current protection action electric current setting valve, Residual current protecting function is closed in actuation time and unlatching.

Preferably, the electronic control unit can also can take electricity in circuit breaker internal by external power supply.

Preferably, further include residual current test device, residual current test device include residual current mechanism for testing and Residual current testing button, the residual current mechanism for testing and the residual current testing button are mechanically connected, the residue Testing current button and the electronic control unit are electrically connected.

Preferably, the electronic control unit is equipped with temperature-sensing element.

Preferably, being equipped with voltage detector component in the electronic control unit.

Preferably, further include function setting button, what the function setting button and the electronic circuit board component formed Electronic control unit mechanical connection.

Preferably, higher level's communication module can remotely rise the electronic control unit by wireless communication mode Grade.

Preferably, the wireless communication module includes bluetooth, NFC, GPRS, WiFi, NB-IoT or Lora.

Preferably, the electronic control unit according to the collected electric current of the current inductor judge in major loop whether Overload fault electric current occurs, as overload fault electric current occurs in major loop, the electronic control unit connects the shunted exciter tripping Device circuit, makes breaker open operation.

Two minimal type breakers of the invention, not only may be implemented the basic function of breaker, but also may be implemented to power Office is by breaker in the on off operating mode of the electric current of residual current, major loop in resident's inner looping and breaker, breaker The temperature in portion carries out the monitoring of real-time monitoring, main circuit voltage, and the data monitored can be uploaded in real time to higher level and communicate mould Block, the outside hub not only can open or close the functions such as residual current protecting according to the size of residual current, can be with Module carries out remote upgrade to the electronic control unit in breaker by wireless communication, in addition, passing through the function of internal setting Module can also realize the combined floodgate or sub-switching operation of remote control of circuit breaker, and effectively reduce the installation dimension of breaker, make The width dimensions of breaker are no more than 36mm, therefore can the accessible existing all 2P conventional small breakers of replacement；Length Size is no more than 110mm, can satisfy the size of existing all residents distribution box length direction, without the space to distribution box Size, which is done any variation and can be met, can meet intelligentized function needs.National grid intelligence is not only greatly reduced in this way Change the cost of development, while also effectively pushing the process of intelligent development.

Detailed description of the invention

By reading detailed description of non-limiting embodiments referring to the drawings, other feature of the invention, Objects and advantages will become more apparent upon, wherein the same or similar appended drawing reference indicates the same or similar feature.It is aobvious and easy Insight, drawings in the following description are only some embodiments of the invention, for those of ordinary skill in the art, not Under the premise of making the creative labor, it is also possible to obtain other drawings based on these drawings.

Attached drawing 1 is the schematic diagram of internal structure of the pole L of the invention.

Attached drawing 2 is the schematic diagram of internal structure of the pole N of the invention.

Attached drawing 3 is the shunt release structural schematic diagram of one embodiment of the invention.

Fig. 4 is placed in structural schematic diagram when magnetic release front for the shunt release of another embodiment of the present invention.

Attached drawing 5 is breaker cross-sectional view of the invention.

Attached drawing 6 is the pole the N structural schematic diagram after the first release lever of the second embodiment of the present invention is cancelled.

Attached drawing 7 is the pole second embodiment of the invention N structural schematic diagram.

Attached drawing 8 is the pole third embodiment of the invention N structural schematic diagram.

Attached drawing 9 is residual current mechanism for testing schematic diagram of the present invention.

Attached drawing 10 is the second circuit board module structural schematic diagram of orthogonal setting of the invention.

Attached drawing 11 is to take electrical schematic inside electronic control unit of the invention.

Attached drawing 12 is that press-button structure schematic diagram is arranged in function of the invention.

Attached drawing 13 is loop current of the present invention detection and data process method figure.

Attached drawing 14 is residual current detection of the present invention and data process method figure.

Specific embodiment

The feature and exemplary embodiment of various aspects of the invention is described more fully below.In following detailed description In, many details are proposed, in order to provide complete understanding of the present invention.But to those skilled in the art It will be apparent that the present invention can be implemented in the case where not needing some details in these details.Below to implementation The description of example is used for the purpose of providing by showing example of the invention and better understanding of the invention.The present invention never limits In any concrete configuration set forth below and algorithm, but cover under the premise of without departing from the spirit of the present invention element, Any modification, replacement and the improvement of component and algorithm.In the the accompanying drawings and the following description, well known structure and skill is not shown Art is unnecessary fuzzy to avoid causing the present invention.

The invention proposes a kind of two pole breakers with the pole L and the pole N controlled by information, and open circuit not only may be implemented The basic function of device, and power supply bureau may be implemented by the breaker to residual current, the major loop in resident's inner looping Electric current and voltage, the on off operating mode of breaker, circuit breaker internal temperature carry out real-time monitoring, and can by the data monitored reality When be uploaded to higher level's communication module, higher level's communication module not only can open or close residual current according to the size of residual current The functions such as protection can also carry out remote upgrade to the electronic control unit in breaker by communication module, and effectively reduce The installation dimension of breaker makes the width dimensions of breaker be no more than 36mm, thus can the accessible existing 2P of replacement pass System miniature circuit breaker；Length dimension is no more than 110mm, can satisfy the size of existing all residents distribution box length direction, Intelligentized function needs can be met by doing any variation without the bulk to distribution box.State is not only greatly reduced in this way The cost of family's power grid intelligent development, while also having effectively pushed the process of intelligent development.

With reference to the accompanying drawing, being described in detail according to an embodiment of the present invention a kind of is had the pole L and the pole N by what information control Two pole breakers.

It please refers to shown in Fig. 1 to Figure 14, a kind of two pole breakers 100 with the pole L and the pole N controlled by information, shell Body includes that the first cavity A being oppositely arranged and the second cavity B, the first cavity A are extremely interior set on N, and the first cavity A includes First moving contact 13, the first static contact 9, electronic control unit 16, shunt release 10, first handle 4, the first operating mechanism 3, First release lever 15, first operating mechanism 3 are connected with first moving contact 2, and operating the first handle 4 makes described One handle 4 is rotated around its center of circle, and first operating mechanism 3 can be driven to move, so first operating mechanism 3 drive it is described First moving contact 13 movement, to realize the disconnection and closure of first moving contact 13 and first static contact 9, the electricity Sub-control unit 16 includes the first electronic circuit board component 14.

The second cavity B is set to the pole L, and is oppositely arranged with the first cavity A, and the second cavity B includes second Moving contact 2, the second static contact 1, magnetic release 5, second handle 4 ', second operation machine structure 3 ' and the second release lever 15 ', described The disconnection of two moving contacts 2 and second static contact 1 and closed action principle and first moving contact 13 and described first quiet Contact 9 is identical, and details are not described herein.When first moving contact 13 and first static contact 9 and second moving contact 2 with It closes a floodgate when second static contact 1 is closed, major loop is powered；First moving contact 13 and first static contact 9 and When second moving contact 2 is disconnected with second static contact 1, that is, and separating brake, major loop power-off.

As shown in figure 5, the breaker further includes third cavity C, the third cavity C is located under the breaker End, and the third cavity C can run through the pole N and the pole L, can also individually be set to the pole N or L extremely in.It is equipped in the third cavity C At least one current inductor 7 and the second electronic circuit board component 6, the electronic control unit 16 are electricity described in circuit breaker internal The set of sub- circuit board module, i.e., the described second electronic circuit board component 6 belong to the electronic control unit 16, the electric current sense Device 7 and the electronic control unit 16 is answered to be electrically connected.In one embodiment, the current inductor 7 is zero sequence transformer, Two conducting wires in the pole L and the pole N of major loop both pass through the hole heart of the zero sequence transformer in breaker, and then may be implemented to leading back The real-time monitoring of residual current in road, the sustainable residual current signal that will be monitored of the zero sequence transformer are sent to the electricity Sub-control unit 16.

In a preferred embodiment, a current inductor 7 can be added again according to function needs.In another embodiment In, the current inductor 7 is current transformer, in the breaker pole L of major loop or N extremely in a conducting wire pass through institute The hole heart of current transformer is stated, and then the real-time monitoring to main circuit current may be implemented, the current transformer is sustainable will The main circuit current signal monitored is sent to the electronic control unit 16.

Certain current inductor 7 or Hall sensor, with the technology category of Hall sensor acquisition current value In field well-known technique, which is not described herein again.

When the current inductor 7 is current transformer or Hall sensor, the reality to main circuit current may be implemented When monitor, and the sustainable main circuit current signal that will be monitored is sent to the electronic control unit 16, the electronic control The current signal received is transmitted to higher level's communication module by the communication module 18 being set in the breaker by unit 16.

The communication module 18 can be set in the first cavity A or described second cavity B or third cavity C It in any one, and can be set on the electronic control unit 16, the communication module 18 and the electronic control unit 16 are electrical Connection, and can be connect in a wired or wireless fashion with higher level's communication module, to make the electronic control unit 16 that will receive Residual current signal higher level's communication module is transmitted to by the communication module 18, higher level's communication module is according to reception To residual current value signal decide whether to open or close residual current protecting function, while it is remaining to open or close protection The instruction of current protecting function feeds back to the electronic control unit 16 by the communication module 18.

As shown in figure 14, residual current protecting is opened when the electronic control unit 16 receives higher level's communication module Instruction after, and when the residual current signal that receives of the electronic control unit 16 reaches protection act setting valve, then connect The shunt release 10.Specifically, when residual current signal reaches the setting valve that the electronic control unit 16 is set, The electronic control unit 16 can allow the shunt release 10 when reaching the delay that the electronic control unit 16 is set Between after connect again.Residual current protection action setting valve and delay time can be set as needed, and the delay time can be with Equal to zero, zero can also be not equal to, different settings can be done according to different use environments, it is not limited here.

After the electronic control unit 16 receives the instruction of closing residual current protecting of higher level's communication module sending, The electronic control unit 16 will not then connect the shunt release 10, even if there is the surplus of arbitrary size in major loop at this time Aftercurrent value, the shunt release 10 will not drive first moving contact 13 to separate or drive with first static contact 9 Second moving contact 2 and second static contact 1 is moved to separate to power off major loop.

It should be noted that if the residual current signal that the electronic control unit 16 receives has reached protection act Setting valve, but higher level's communication module does not open the instruction of residual current protecting, at this point, the shunt release 10 is still not It is switched on, only meets two following conditions simultaneously, the shunt release 10 can be just switched on:

1), the electronic control unit 16 receives the instruction that higher level's communication module opens residual current protecting；

2), the residual current signal that the electronic control unit 16 receives reaches protection act setting valve.

In a preferred embodiment, as shown in figure 9, a kind of two with the pole L and the pole N controlled by information are extremely breaking Device is additionally provided with residual current test device, and residual current test device includes residual current mechanism for testing 21 and residual current Testing button 22, the residual current mechanism for testing 21 can be set in the first cavity A or the second cavity B or third cavity In C, it can be adjusted according to actual volume or space, herein with no restrictions.The residual current mechanism for testing 21 includes test Bar and reset spring 23, the reference test bar can move along a straight line under the action of reset spring 23.The electronic control unit Residual current testing button 22, the residual current mechanism for testing 21 and 22 machine of residual current testing button are provided in 16 Tool connection, when the residual current mechanism for testing 21 is connected when being pressed with the residual current testing button 22, to make Residual current test loop in electronic control unit 16 is connected, and the reset spring 23 is compressed at this time, the electronic control Unit 16 can connect the shunt release 10, and the shunt release 10 makes described first by first operating mechanism 3 Moving contact 13 and first static contact 9 separation, complete the test function of residual current protecting.When the residual current test machine When structure 21 resets under the action of reset spring 23, the reference test bar is separated with the residual current testing button 22, remaining electricity Current test circuit disconnects.By the residual current mechanism for testing 21, the security performance of the breaker can be detected, That is: by one test current value of setting, it can test whether the breaker can normally thread off when residual current occurs, thus Guarantee the yield of product.

As shown in figure 11, the electronic control unit 16 by the first conducting wire 27 and the second conducting wire 28 respectively with breaker The pole L load end 29 and the pole N load end 30 are electrically connected, and the voltage by acquiring the pole L load end 29 and the pole N load end 30 simultaneously is believed Number judge the on/off switch state of breaker, there are certain voltages when collecting between the pole L load end 29 and the pole N load end 30 When value, then judge that breaker is in "on" position, when collecting no-voltage between the pole L load end 29 and the pole N load end 30, then Judge that breaker is in gate-dividing state.The electronic control unit 16 can also load the collected pole L load end 29 and the pole N 30 voltage signals and circuit-breaker status is held to be transferred to higher level's communication module by communication module 18.

In addition, the electronic control unit 16 can be believed according to the main circuit current that the current inductor 7 received transmits Voltage signal number between the load end 29 and load end 30 of itself acquisition judges the state of breaker, and judgment principle is such as Under:

1, when the current signal received is then to break less than or equal to rated working current value and load end is there are certain voltage value Road device is normal "on" position；

2, when the current signal received is less than or equal to rated working current value and load end no-voltage, then breaker is normal Gate-dividing state；

3, when the current signal received is greater than rated working current value and load end no-voltage, then breaker is short trouble Tripping separating brake.

Breaker on/off switch state also carries out comprehensive descision, position sense in combination with the position signal of position sensor acquisition Device is answered to can be hall position sensor, microswitch etc..In a preferred embodiment, microswitch is provided in breaker 20, it is electrically connected with electronic control unit 16.As shown in figure 8, the gear 172 in recloser mechanism 17 is located at sub-gate position When setting, the anodontia position in gear 172 separates relatively with microswitch 20, and microswitch 20 is in an off state, then electronics control Unit 16 processed will combine the signal that microswitch 20 issues at this time to judge that breaker is in gate-dividing state；When recloser mechanism When gear 172 in 17 is located at closing position, position with teeth and 20 making contact of microswitch in gear 172, then fine motion is opened Close 20 in an ON state, then electronic control unit 16 will combine the signal that microswitch 20 issues at this time to judge that breaker is in "on" position.

It is of course also possible to which difference is issued in combined floodgate or open position according to breaker by magnetic element is arranged in handle 4 Magnetic field strength, accordingly in electronic control unit 16 setting receive magnetic field strength hall sensor, for judging open circuit The on/off switch state of device.The monitoring of breaker closing or gate-dividing state can be additionally realized with means such as optocouplers, here not It enumerates again.

Now to two kinds of different tripping gate-dividing states of breaker, detailed description are as follows:

When breaker is short trouble tripping separating brake, electronic control unit 16 will record breaker in the moment that breaker disconnects It disconnects previous moment current inductor 7 and is transmitted through the main circuit current value come, and starting current accident analysis function.As shown in Figure 1, It further include thermal overload release 35 in the shell, the thermal overload release 35 is to overload long delay buckle releaser, the magnetic Buckle releaser 5 is short-circuit instantaneous release, and certainly, different breaker producers can select to realize protection according to actual needs Type, such as overloading long delay protection, short-circuit protection or both has, it is not limited here.

Specific deterministic process is as follows:

When occurring overload current in major loop, the thermal overload release 35 in breaker is bimetal leaf material, the hot mistake Carry buckle releaser 35 can be due to accelerating to generate heat by overload current, and when calorific value accumulates to a certain extent, the thermal overload is de- Button device 35 separates second moving contact 2 and corresponding second static contact 1 by the second operation machine structure 3 ', makes to lead Circuit disconnects, to play the function of overload protection to route or equipment, electronic control unit 16 collects the pole L and the pole N at this time Load end no-voltage, and according to breaker disconnect previous moment described in current inductor 7 be transmitted through come main circuit current value integrate It is judged as overload fault tripping separating brake.

When the overload current occurred in major loop is larger, such as when there is short circuit current, then the magnetic tripping in breaker Device 5 is short-circuit instantaneous release, can be started rapidly, by second operation machine structure 3 ' make second moving contact 2 with it is corresponding Second static contact 1 separates, and disconnects major loop, the function of short-circuit protection is played to route or equipment.Similarly, described at this time Electronic control unit 16 collects the pole L and the pole N load end no-voltage, and the electric current according to breaker disconnection previous moment It is short trouble tripping separating brake that inductor 7, which is transmitted through the main circuit current value comprehensive descision come,.Described in the text passes through described second Operating mechanism 3 ' makes second moving contact 2 and the isolated technology of first static contact 1 belong to the known skill of field of circuit breakers Art, therefore be no longer described in detail.

When breaker is normal gate-dividing state, i.e., artificial operation second handle 4 ' makes breaker open operation, similarly, at this time The electronic control unit 16 collects the pole L and the pole N load end no-voltage, and according to breaker disconnection previous moment It is manual brake separating that current inductor 7, which is transmitted through the main circuit current value comprehensive descision come, and then the electronic control unit 16 will be sentenced The circuit-breaker status having no progeny is transmitted to higher level's communication module by the communication module 18.

The electronic control unit 16 can also be according to the main circuit current letter that the current inductor 7 received is sent Number make further line status analysis, judgment principle is as follows:

1, when the current value received is running current, then judge that line status is normal；

2, when the current value received is overload current, then judge line status for overload；

3, when the current value received is short circuit current, then judge line status for short circuit.

The difference of overload current and short circuit current is the common knowledge in industry, and details are not described herein.

When being not provided with thermal overload release 35 in breaker, if the size of overload current value and duration reach pre- When definite value, the electronic control unit 16 then can shunt release 10 described in turn on automatically, shunt release 10 drives described Two operating mechanisms 3 ' separate second moving contact 2 with corresponding first static contact 1, reach protection circuit and equipment Purpose.

It please refers to shown in Figure 11, the working power of the electronic control unit 16 can take in the power end of circuit breaker internal Electricity, the electronic control unit 16 are electric with first power end 31 and second respectively by privates 24 and privates 25 Source 32 is electrically connected, and can be guaranteed in this way when breaker is in gate-dividing state, still has reliable power supply electron control single Member 16 is powered, and allows to work normally, and then is guaranteed and the continual communication of higher level's communication module.Certainly, the electronics control Unit 16 processed can be connect with the connection type at first power end 31 and second source end 32 using conducting wire, can also be used The mode of elastic slice contact and the reliability of power end electrical connection in the present embodiment, are connected by conducting wire it is not limited here The mode connect.

In another embodiment, as shown in Figure 10, can also be used in one power module of exterior arrangement to the electronics Control unit 16 is powered, and is connected with external power source power interface 33 specifically, may be provided in communication module 18, described outer Portion's power module can be electrically connected by the power interface 33 with the electronic control unit 16, and it is single to be embodied as electronic control First 16 continued powers.

A kind of connection type of the two pole breakers and higher level's communication module with the pole L and the pole N controlled by information Comprising two kinds of wire communication and wireless communication, the electronic control unit 16 can be by the communication module 18 with wired or nothing Line communication mode is connect with higher level's communication module, realizes the communications of related data information, while higher level's communication module Remote upgrade can be carried out to electronic control unit 16 with wired or wireless communication mode.The wired communication mode includes RS485, HPL, Ethernet or LAN, the wireless communication module include bluetooth, NFC, GPRS, WiFi, NB-IoT or Lora.

In a preferred embodiment, it is additionally provided with temperature-sensing element in the electronic control unit 16, may be implemented to break The real-time acquisition of road device internal temperature, and collected circuit breaker internal temperature data can constantly be passed by communication module 18 Higher level's communication module is given, higher level's communication module can be analyzed according to the internal temperature and loop current data of breaker, be determined Scene causes circuit breaker internal temperature excessively high and then damages the failure of breaker with the presence or absence of the virtual connection of major loop route.

In a preferred embodiment, it is additionally provided with voltage detector component in the electronic control unit 16, may be implemented to break Real-time acquisition in the device major loop of road, and the voltage data of collected breaker major loop can be continued by communication module 18 Ground is transmitted to higher level's communication module.

In a preferred embodiment, as shown in figure 12, the function being coupled with shell is additionally provided in breaker to be arranged Button 38, parameter regulation button 19 is provided in electronic control unit 16, and parameter regulation button 19 has certain elasticity, function setting Parameter regulation button 19 in button 38 and electronic control unit 16 is mechanically connected, and button 18 is arranged by pressing function, works as pressing After power is eliminated, button 38, which is arranged, in function can carry out function to breaker in local by the elastic reset of parameter regulation button 19 It can parameter setting.Reset spring can certainly be set between shell and function setting button 38 as needed, for making function The self-resetting after the elimination of extraneous pressing force of button 19 can be set.

It elaborates combined with specific embodiments below to the present invention, that mentions in following embodiment is left and right, upper and lower etc. Angle shown in Fig. 2 is subject in position, when the jobbie being previously mentioned in text is placed in the front of another object, i.e. expression jobbie It is placed in the left side of another object, when jobbie is placed in the rear portion of another object, i.e. expression jobbie is placed in another object Right side.

First embodiment:

As shown in figs. 2 and 10, the shunt release 10 is placed in the first cavity A, and with the electronic control unit 16 electrical connections, the shunt release 10 are placed in the left side of first release lever 15, i.e., the described shunt release 10 is placed in The front of first release lever 15, and be generally corresponding to first release lever 15, in order to meet breaker required function Demand, the second electronic circuit board component 6 include at least two pieces of circuit board modules, i.e. first point of 61 He of electronic circuit board component Second point of electronic circuit board component 62, and first point of electronic circuit board component 61 and second point of electronic circuit board component 62 Orthogonal placement, as shown in Figure 10.Wherein first point of electronic circuit board component 61 and circuit breaker panel a and breaker side Face b is vertical simultaneously, i.e., described first point of electronic circuit board component 61 is arranged in parallel with breaker and bottom surface d, second point of electricity Sub- circuit board module 62 is parallel with panel a described in breaker and vertical with first point of electronic circuit board component 61, i.e., described First point of electronic circuit board component 61 is set to the top of the current inductor 7 in the third cavity C, and second wiring board is set In the side of the current inductor 7, certainly, can also set first point of electronic circuit board component 61 to and breaker face Plate a is vertical parallel with breaker side b, second point of electronic circuit board component 62 it is parallel with panel a described in breaker and with it is described First point of electronic circuit board component 61 is vertical, and same effect may be implemented.When first point of electronic circuit board component 61 with When breaker side b is arranged in parallel, can be equipped in first point of electronic circuit board component 61 may pass through what power lead passed through Through-hole, the power lead is in turn through the current inductor 7 and first point of electronic circuit board component 61.Such as Fig. 2 It is shown, the left side of the current inductor 7 can be defined as front, right side and be defined as rear portion, the two sides parallel with the bottom surface d It is defined as the side of the current inductor 7, then first point of electronic circuit board component 61 can be set to the current inductor Front or at least one of rear portion or side position.When first point of electronic circuit board component 61 incudes set on the electric current When the side of device 7, first point of electronic circuit board component 61 can extend close to described along the length direction of the breaker The position of first static contact 9, and gap is equipped between first static contact 9.

It includes first point of electronic circuit board component 61 and second point of electronic circuit board that the second electronic circuit board component 6, which removes, Component 62 can also include that others divide electronic circuit board component, and the others divide electronic circuit board component respectively with first Electronic circuit board component 61 and second point of electronic circuit board component 62 is divided to be electrically connected.

Miniature circuit breaker realizes that normal power distribution protection needs the bulk of length direction generally at least in 80mm or so, because This electronic control unit 16 only has 30mm or so in the bulk of the length direction of breaker, according to conventional small breaker Height dimension, electronic control unit 16 only have 50mm ~ 60mm, breaker width direction in the bulk of breaker short transverse Bulk only have maximum 33mm(width dimensions 36mm-2* wall thickness dimension) control.If being provided only in the space of breaker First point of electronic circuit board component 61 or second point of electronic circuit board component 62, then first point of electronic circuit board component 61 or the second Divide the size of electronic circuit board component 62 only there are two types of specification, full-size is 33mm*30mm or 60mm*30mm, both rule Any one in lattice size is unable to satisfy the function needs of electronic control unit 16, therefore in the space of this breaker Generally two points of electronic circuit board components are at least set, first point of 61 He of electronic circuit board component illustrated in first embodiment The placement scheme of second point of electronic circuit board component 62 and current inductor 7 is undoubtedly optimal placement scheme, such design The volume that the second electronic circuit board component 6 can be increased, to more preferably meet the functional requirement of circuit breaker.

Please continue to refer to shown in Fig. 2, if the second electronic circuit board component 6 is set as orthogonal first point of electronics The functional requirement that the breaker can not be still fully met after circuit board module 61 and second point of electronic circuit board component 62, then may be used To add the first electronic circuit board component 14 again, the shunt release 10 is arranged in the first electronic circuit board component 14 Lower position is correspondingly arranged positioned at the left side of the pole N moving contact 13 to the region of shell rim, and with the shunt release 10, Then the first electronic circuit board component 14 and the second electronic circuit board component 6 are electrically connected, and constitute electronic control unit 16. At this point, the conductor of the pole N is across on the first electronic circuit board component 14.Layout designs can not have to additional increase by two in this way The bulk of the width direction of pole breaker, while the inner space of breaker is also taken full advantage of, make the length of breaker Size has accomplished to minimize.

In the first embodiment, in order to realize the residual current protecting function of breaker, in the first cavity of breaker A In the first release lever 15 left side be provided with the shunt release 10, when residual current value reaches higher level's communication module in electricity When the operation condition being arranged in sub-control unit 16, shunt release 10 is switched on movement, it is necessary to by pushing the first release lever 15 can be such that operating mechanism unlocks, therefore first release lever 15 can not be cancelled under such layout scenarios, be laid out in this way Motor-operating mechanism just is added without space in the cavity 1 of the breaker of design, so cannot achieve remote control of circuit breaker conjunction Lock or sub-switching operation.

Second embodiment:

As shown in fig. 6, the shunt release 10 is placed in first cavity in A, and electric with the electronic control unit 16 Gas connection, the shunt release 10 are placed in the right side of the first release lever 15, and the shunt release 10 can be located at institute at this time It states in the first cavity A, can also be located in the third cavity C, when the shunt release 10 is placed on first tripping When the right side of bar 15, the left area of first release lever 15 can vacate bigger space, therefore can make the first electricity The volume of sub- circuit board module 14 increases again on the basis of above-mentioned first embodiment, range as shown in phantom in Figure 6；It is described Design method and the placement position of second electronic circuit board component 6 are as in the first embodiment, as shown in Figure 10, details are not described herein.

In the present embodiment, since the shunt release 10 is set to the right side of first release lever 15, because of space The limitation of structure, at this point, the shunt release 10 can not link with first release lever 15, to be unable to drive the behaviour Make the movement of mechanism 3, and then cannot achieve being opened or closed for first moving contact 13 and first static contact 9, therefore, institute Stating the first release lever 15 can cancel in the present embodiment.

To guarantee that first moving contact 13 is opened or closed with the normal of first static contact 9, in the present embodiment, Be additionally provided with third release lever 15 ' ', the third release lever 15 ' ' can be in contact with the dynamic iron core 91 of the shunt release 10 or Separation, and the third release lever 15 ' ' can drive the operating mechanism 3 to move, the third release lever 15 ' ' can be located at described Above or below dynamic iron core 91, please refer to shown in Fig. 6 and Fig. 3, when the shunt release 10 is switched on, the coil 92 In can generate electric current, and then 92 surrounding of coil is made to generate magnetic field, the dynamic iron core 91 and the static iron core 94 are by the magnetic field Magnetization, so that magnetic attraction is generated between, when the magnetic attraction is greater than the resistance that the spring 93 provides, the dynamic iron core 91 is mobile to the direction of the close static iron core 94, after one end of the dynamic iron core 91 passes through the via hole of the static iron core 94, The dynamic iron core 91 is contacted with the third release lever 15 ' ', and the third release lever 15 ' ' is pushed to move, and then described the Three release levers 15 ' ' drive the operating mechanism 3 to move, the operating mechanism 3 drives first moving contact 13 to rotate, and makes institute It states the first moving contact 13 and separates disconnection with first static contact 9, to realize the power-off of major loop, and then realize to major loop Residual current protecting.

3rd embodiment:

As shown in figure 8, in order to realize that breaker under the premise of possessing residual current protecting function, while having long-range control disconnected Road device closes a floodgate or the function of sub-switching operation, is laid out based on above-mentioned second embodiment, due to the shunt release 10 It is placed in the right side of the first release lever 15, the first release lever 15 for being accordingly used in being used cooperatively with the shunt release 10 can take Disappear, therefore the space in the first cavity A will greatly increase, except the volume of the first electronic circuit board component 14 is in institute Stating can increase on the basis of first embodiment outer, and dotted line range shown in Fig. 8 is the first electronic circuit board component 14, this When, the one side wall patch of the first electronic circuit board component 14 and the first cavity A is neat, can also be by recloser mechanism 17 are placed in the first cavity of breaker A, as shown in figure 8, the recloser mechanism 17 includes motor 171, is mounted on institute The worm screw 172 on 171 axis of motor and gear transmission structure are stated, the gear transmission structure includes first engaged with worm screw 172 Gear 173, second gear 174, third gear 175, the 4th gear 176 and the 5th tooth rotated coaxially with the 4th gear 176 Wheel 177 is equipped with the second dentalation matched with the first dentalation of first handle 4 on the 5th gear 177, the One dentalation can be in contact or separate with the second dentalation, and the motor 171 electrically connects with the electronic control unit 16 It connects.Motor 171 and electronic control unit 16 in the recloser mechanism 17 are electrically connected, when electronic control unit 16 connects When receiving the combined floodgate or separating brake command signal that higher level's communication module is assigned in a wired or wireless manner, the recloser machine 171 circuit of motor in structure 17 can be connected, and motor 171 can drive recloser mechanism 17 to be acted by gear etc., real Existing remote control of circuit breaker closes a floodgate or the operating function of separating brake.Recloser mechanism 17 drives the mistake of breaker closing or separating brake Journey belongs to well-known technique, be not described in detail here, sets in arrangement such, sets in arrangement such, described electronic heavy The gear transmission structure of switching-on mechanism 17 is set to 14 He of the first electronic circuit board component along the width direction of the breaker Between first static contact 9, and the conductive part of first static contact 9 is across the gear transmission structure.The recloser There is certain gap, to guarantee the good dress of the two between gear and the first electronic circuit board component 14 in mechanism 17 Match.

In order to further save space, some technical staff consider whether can be by the shunt release in 3rd embodiment 10 remove, when the residual current value in major loop reaches the operation condition that higher level's communication module is arranged in electronic control unit 16 When, electric motor loop is connected by electronic control unit 16, breaker open operation is made by recloser mechanism 17, but passes through theory Analysis, recloser mechanism 17 grow the actuation time of breaker open operation can all partially, and the general movement deadline all will not be small In 500ms, the actuation time that can not fully meet residual current protecting is required, especially when residual current protecting is used for 30mA And when protection below, it is desirable that the maximum break of breaker residual current protection action does not allow more than 300ms, therefore takes The scheme that the shunt release motor-operating mechanism that disappears executes residual current protection action is undesirable.

Fourth embodiment:

By being analyzed above it is found that the executing agency of residual current protection action must be executed with shunt release 10, if together When meet the function that breaker remotely controls combined floodgate or sub-switching operation, can be empty by the first embodiment or the second embodiment first Shunt release 10 in chamber A is placed in the second cavity B, the first release lever 15 in the first cavity A described in this way It can cancel simultaneously, so having biggish space that can place recloser mechanism 17 in the first cavity A, and then make open circuit Device can also realize the operating function of remote control of circuit breaker combined floodgate or separating brake while possessing aftercurrent action protecting.

When the shunt release 10 is set in the second cavity B, likewise, the shunt release 10 can be with institute It states the first release lever 15 and is set to same cavity jointly, at this point, the shunt release 10 is set to first release lever 15 Left side；When the shunt release 10 is set to the right side of first release lever 15, first release lever 15 at this time It can be replaced with the third release lever 15 ' ', in the present embodiment the shunt release 10 and first release lever 15 or institute The motion process for stating third release lever 15 ' ' is identical as above-mentioned the first embodiment or the second embodiment, and details are not described herein.

In addition, the shunt release 10 can be put when the shunt release 10 is arranged in the second cavity B It sets in left side, right side or the inside of the magnetic release 5, operating principle is almost the same, is put with the shunt release 10 It sets for the front of magnetic release 5, its working principles are as follows:

As shown in figure 4, shunt release 10 and magnetic release 5 share a mandril 53, the dynamic iron core 55 and shunt opening of magnetic release 5 The static iron core of buckle releaser 10 shares, and the coil 101 of shunt release 10 is wound on shunt release dynamic iron core 103 and dynamic iron core 55 Around, the coil 51 of magnetic release 5 is wound on around magnetic release dynamic iron core 55 and static iron core 52.When shunt release 10 connects When logical, electric current can be flowed through in the coil 101 of shunt release 10, and then generate magnetic field, and then by the dynamic iron of shunt release 10 The dynamic iron core of the static iron core 55(magnetic release of core 103 and shunt release) magnetization, when shunt release 10 dynamic iron core 103 with When magnetic attraction is greater than the elastic force of reaction spring 103 between the static iron core 55 of shunt release, the dynamic iron core 103 of shunt release 10 Can be to the dynamic iron core of the static iron core 55(magnetic release of shunt release) movement, and then push mandril 53 to the second release lever 15 ' Direction movement, make the second operation machine structure 3 ' that second moving contact 2 be driven to rotate, make second moving contact 2 and institute It states the separation of the second static contact 1 to disconnect, to realize the power-off of major loop.When occurring short circuit current in major loop, magnetic release 5 Operating principle it is consistent with the operating principle of shunt release 10, I will not elaborate.

According to embodiment two, three, four it is found that due to 10 position of shunt release layout, make in first cavity in A The left area of first release lever 15 can vacate bigger space, therefore can make the first electronic circuit board component 14 Volume increase again on the basis of above-mentioned first embodiment.Further, the first electronic circuit board component 14 can be with Third cavity C is extended to through the first cavity A, is combined into one with first point of electronic circuit board component 61, is made described

The utilization rate of first electronic circuit board component 14 and first part of electronic circuit board component 61 to circuit breaker internal space It further increases, is no more than 36mm for breaker width dimensions and length dimension does not surpass

It crosses 110mm and provides another technological means.

The basic function of breaker not only may be implemented in the two pole breakers according to an embodiment of the present invention controlled by information, And following functions may be implemented: the overload protection and short-circuit protection of equipment or route, in major loop residual current, lead back The on off operating mode of the electric current on road and breaker, breaker internal temperature carry out real-time monitoring, and can be by the data monitored reality When be uploaded to higher level's communication module, while higher level's communication module can open or close the functions such as residual current protecting, Er Qieshang Grade communication module can carry out remote upgrade to electronic control unit 16, while effectively reduce the installation dimension of breaker.Pass through Disposably installing the miniature circuit breaker combined with the pole L and the pole N can be realized multiple functions, thus can save space and at This, and meet low-voltage distribution network hommization and protect the intelligent development needs of power grid security.Not only greatly reduce state's household electrical appliances The cost of net intelligent development, while also effectively pushing the process of intelligent development.

The present invention can realize in other specific forms, without departing from its spirit and essential characteristics.Current embodiment All it is counted as being exemplary rather than in all respects limited, the scope of the present invention is by appended claims rather than above-mentioned retouches Definition is stated, also, falls into the meaning of claim and whole changes in the range of equivalent to all be included in the present invention Range among.

Claims (16)

1. a kind of two pole breakers (100) with the pole L and the pole N controlled by information, shell is interior to be equipped at least three cavitys (A, B, C) is equipped with handle (4), operating mechanism (3), tripping mechanism (12), dynamic touching at least three cavity (A, B, C) Head (13) and static contact (9), shunt release (10), magnetic release (5), thermal overload release (35), electronic control unit (16) and wireless communication module (18), the electronic control unit (16) include at least several points of electronic circuit board components (61) and Several points of electronic circuit board component (62) wireless communication modules (18) are set on the electronic control unit (16), feature Be, be set to the breaker (100) below at least one cavity (C) in be provided at least one current inductor (7), At least one piece of point of electronic circuit board component (62) and at least one piece of point of electronic circuit board component (61), at least one piece of point of electronics Circuit board module (62) and the panel (a) of the breaker (100) are horizontally disposed, at least one piece of point of electronic circuit board component (61) current inductor (7) front or at least one of rear portion or side position, the wireless communication module are set to (18) with wireless communication mode, directly or indirectly superior communication module sends collected information, and described in receiving The information that higher level's communication module is sent is sent to the electronic control unit (16), and higher level's communication module passes through described wireless Communication module (18) carries out remote upgrade to the software in the electronic control unit (16).

2. a kind of two pole breakers with the pole L and the pole N controlled by information according to claim 1, which is characterized in that Described point of electronic circuit board component (61) is set to the side of the current inductor (7), and can be along the length side of the breaker To around the static contact (9) for extending close to the pole N.

3. a kind of two pole breakers with the pole L and the pole N controlled by information according to claim 1, which is characterized in that Described point of electronic circuit board component (61), which is equipped at least one, may pass through the through-hole of power lead.

4. a kind of two pole breakers with the pole L and the pole N controlled by information according to claim 1, which is characterized in that The wireless communication module (18) includes bluetooth, NFC, GPRS, WiFi, NB-IoT or Lora.

5. a kind of two pole breakers with the pole L and the pole N controlled by information according to claim 1, which is characterized in that The current inductor (7) is at least one of current transformer, zero sequence transformer or Hall sensor.

6. a kind of two pole breakers with the pole L and the pole N controlled by information, feature exist according to claim 1 or 5 In further including recloser mechanism (17), the recloser mechanism (17) includes gear transmission structure, described electronic heavy Switching-on mechanism (17) be set to N extremely in and along the width direction of the breaker be set to the part electronic circuit board component (14) and Between static contact (9), the conductive part of the static contact (9) is across the gear transmission structure.

7. a kind of two pole breakers with the pole L and the pole N controlled by information according to claim 1, which is characterized in that The shunt release (10) can be set to the rear portion of release lever (15) of the tripping mechanism (12), the magnetic release (5) Internal, front or rear portion any position.

8. a kind of two pole breakers with the pole L and the pole N controlled by information according to claim 5, which is characterized in that The current inductor (7) and the electronic control unit (16) are electrically connected, and the current transformer or Hall sensor will Collected current data is transmitted to the electronic control unit (16), and the electronic control unit (16) is according to the Current Mutual Inductance Device or the collected current value of Hall sensor and circuit-breaker switching on-off state judge the state of breaker.

9. a kind of two pole breakers with the pole L and the pole N controlled by information according to claim 8, which is characterized in that The state of the breaker includes on/off switch state, and the on/off switch state can be according to the circuit breaker load end voltage detected Value carries out comprehensive descision, can also carry out comprehensive descision with position signal that binding site inductor acquires.

10. a kind of two pole breakers with the pole L and the pole N controlled by information according to claim 1, which is characterized in that The zero sequence transformer and the shunt release (10) are electrically connected with the electronic control unit (16) respectively, higher level's communication Module presets setting valve, the movement of residual current protection action electric current in the electronic control unit (16) with wireless communication mode Residual current protecting function is closed in time and unlatching.

11. a kind of two pole breakers with the pole L and the pole N controlled by information according to claim 5, feature exist In the electronic control unit (16) judges in major loop according to the current transformer or the collected electric current of Hall sensor Whether overload fault electric current is occurred, as overload fault electric current occurs in major loop, described in the electronic control unit (16) is connected Shunt release (10) circuit, makes breaker open operation.

12. a kind of two pole breakers with the pole L and the pole N controlled by information according to claim 1, which is characterized in that The electronic control unit (16) can also can take electricity in circuit breaker internal by external power supply.

13. a kind of two pole breakers with the pole L and the pole N controlled by information according to claim 1, which is characterized in that It further include residual current test device, residual current test device includes residual current mechanism for testing (21) and residual current test Button (22), the residual current mechanism for testing (21) and the residual current testing button (22) are mechanically connected, the residue Testing current button (22) and the electronic control unit (16) are electrically connected.

14. a kind of two pole breakers with the pole L and the pole N controlled by information according to claim 1, feature exist In the electronic control unit (16) is equipped with temperature-sensing element.

15. a kind of two pole breakers with the pole L and the pole N controlled by information according to claim 1, feature exist In equipped with voltage detector component in the electronic control unit (16).

16. a kind of two pole breakers with the pole L and the pole N controlled by information according to claim 1, feature exist In, it further include function setting button (38), function setting button (38) and the electronic control unit (16) mechanical connection.