CN101924344B - Multifunction control and protection switch device - Google Patents
Multifunction control and protection switch device Download PDFInfo
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- CN101924344B CN101924344B CN 201010258782 CN201010258782A CN101924344B CN 101924344 B CN101924344 B CN 101924344B CN 201010258782 CN201010258782 CN 201010258782 CN 201010258782 A CN201010258782 A CN 201010258782A CN 101924344 B CN101924344 B CN 101924344B
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Abstract
The invention discloses a multifunctional control and protection switch device which comprises a main circuit, a control electromagnet, a releasing electromagnet and a power module of an operating mechanism. The operating mechanism switches on and off a power source return circuit of the control electromagnet through a mechanical control contact, is mechanically related to a reporting contact module and the releasing electromagnet, and realizes the opening and the closing of the main circuit through a transmission mechanism. The multifunctional control and protection switch device also comprises a protection module and a power source module, wherein the protection module comprises a releasing electromagnet driving circuit, a current sensor and a signal processing control unit; and the power source module supplies power to a control electromagnet driving circuit, the releasing electromagnet driving circuit and the signal processing control unit respectively. The multifunctional control and protection switch device combines the control function of a contactor, the short circuit breaking function of a circuit breaker and the overload protection function of an overload relay through the integrated and modularized structural design.
Description
Technical field
The present invention relates to a kind of control and protective switching device, relate in particular to a kind of multi-functional control and protection switch electrical equipment, belong to the low voltage electrical apparatus technology field.
Background technology
The electrical system that general low-voltage electrical apparatus consists of mainly contains dual mode: a kind of is by realizing respectively protective effect (distribution apparatus; be mainly circuit breaker) and control action (control apparatus; be mainly contactor and thermal relay or motor protector) the device for switching of discrete consist of; separately independent installation; two kinds of electrical equipment series connection are connected to (shown in Fig. 1 a) between power supply and the load.The fault-signal of the operating mechanism test-accepting unit of distribution apparatus and threading off and the main circuit of disjunction distribution apparatus, the control circuit of control apparatus are accepted artificial or automatic control signal and operate electromagnetic system and connect or the main circuit of disjunction control apparatus.
Another kind is to be that control and protective switching device (referred to as CPS) consists of by the integrated multifunctional electric appliance with control and protective effect simultaneously, and its structure consists of and is generally modular integrative installation technology mode, is connected between power supply and the load.Its protective device is divided into electromagnetic type protective device, two kinds of forms of electronic protecting device.
Wherein, for the CPS(that is consisted of by the electromagnetic type protective device fully shown in Fig. 1 b); its operating mechanism can be accepted the generic failure (fault except short circuit; such as overload, the disconnected fault that equates) fault-signal of detecting unit realize minute deenergizing also (or) report to the police; simultaneously, the operating mechanism of CPS can carry out manual operation to a pair of machinery control contact that is connected in control power supply and the control circuit.The machinery control contact that is controlled by operating mechanism can be accepted artificial or automatic control signal, by control circuit operation electromagnetic system, realizes the main circuit of connection or disjunction CPS.This CPS is also simultaneously with short-circuit protection tripping system (being short trouble detecting unit and high speed electromagnetic system), and short trouble directly acts on main circuit mechanically when occuring.
For the CPS that is made of electronic protecting device, whether acting on tripping mechanism by protective device has again two kinds of different schemes.
A kind of is that protective device is by independently generic failure detecting unit and short trouble detecting unit form, generic failure does not directly act on operating mechanism (shown in Fig. 1 c) mechanically, and a pair of machinery control contact (such as the control of the machinery among Fig. 1 c contact 2) of connecting with control circuit is operated, by control machinery control contact 2 minute with close, realize by control circuit operation electromagnetic system minute with close; Realize the short trouble protection by short-circuit protection tripping system (being short trouble detecting unit and high speed electromagnetic system), the mode of short-circuit protection is to directly act on mechanically main circuit.
Another kind is that protective device forms (shown in Fig. 1 d) by single fault detect processing unit; generic failure and short trouble detect and process by this single failure Check processing unit; when different faults occurs; processing unit carries out error protection by control contact and the break-make control contact of threading off to the control of release electromagnet and control circuit, and by the action precedence of release electromagnet and electromagnetic system generic failure and short trouble is distinguished.
The contactor-breaker of mentioning among the patent documentation ZL 00813988.1; belong to CPS(Fig. 1 d shown type that protective device is comprised of single fault detect processing unit; its structural representation is seen Fig. 1 among the document ZL 00813988.1; associated sequence numbers described in below describing is associated sequence numbers among document Fig. 1), but have following problem:
Though solved reliably working under the contactor pattern and the coordination problem of the high breaking velocity under the circuit breaker pattern, but its machinery and electric layout are so that contact arc-extinguishing system is difficult to symmetric configuration placed in the middle, be that the distolateral arc control device space of power end and load is unequal, can't farthest utilize the useful space of arc control device inside to dwindle outside flashover distance, need larger space during use and may bring potential safety hazard.Protection is connected with control device and is connected with main circuit by wire clamp or plug, carries out on the one hand voltage transitions, and the former contact resistance and the latter's AC/DC changes all can produce larger heating, and it is relatively concentrated to cause generating heat, be unfavorable for electronic devices and components normally.Working electromagnet lacks the state feedback link, has reduced the reliability of using.When using as contactor function, when the frequent break-make of external control power supply, because the power supply of protective device and control device simultaneously by frequent break-make, may cause the life-span of portions of electronics components and parts to be reduced.
Therefore, be necessary the integral type modular multifunctional control and protective switching device that provides new.
Summary of the invention
Technical problem to be solved by this invention provides a kind of multi-functional control and protection switch electrical equipment, has the control function of contactor, the short circuit breaking function of circuit breaker and the overload protection function of overload relay concurrently.
The present invention solves the problems of the technologies described above the technical scheme that adopts to provide a kind of multi-functional control and protection switch electrical equipment, comprise power plant module, described power plant module comprises main circuit, control electromagnet, release electromagnet and operating mechanism, described operating mechanism is by the current supply circuit of machinery control contact break-make control electromagnet, described operating mechanism is realized the breaking and closing of main circuit with letter newspaper contact module and release electromagnet machinery association, described operating mechanism by transmission mechanism; Protection module, described protection module comprises release electromagnet drive circuit and current sensor; The primary circuit of described current sensor is connected with main circuit by wire clamp or plug, and the induced signal of the secondary circuit of current sensor links to each other with signal processing control unit, thereby realizes detection and judgement to main circuit current; Power module, described power module comprises power-switching circuit, provides respectively power supply to control solenoid driver circuit, release electromagnet drive circuit and signal processing control unit.
Above-mentioned multi-functional control and protection switch electrical equipment; wherein; described power plant module includes the feedback contact module; the contact support of described feedback contact module is related with transmission mechanism; detect and judge control electromagnet whether as requested normally closed or disconnection; the output of feedback contact module links to each other with signal processing control unit; if the control electromagnet is regular event not, then signal processing control unit can be sent alarm signal or pass through the release electromagnet drive circuit so that release dropout disjunction main circuit.
Above-mentioned multi-functional control and protection switch electrical equipment, wherein, described signal processing control unit comprises short-circuit detecting circuit, after short trouble appearred in main circuit, described short-circuit detecting circuit was directly given an order and is triggered release electromagnet drive circuit disjunction main circuit; When generic failure occurring, described signal processing control unit is given an order by software analysis and is triggered release electromagnet drive circuit disjunction main circuit.
Above-mentioned multi-functional control and protection switch electrical equipment, wherein, described main circuit comprises moving contact and fixed contact and is used for connecting and the disjunction main circuit, and described moving contact, fixed contact and arc control device link to each other, and described arc control device are for extinguish fast the electric arc that connection and disjunction moment produce between dynamic and static contact; Fixed contact is connected respectively to power end and load end by conductive plate, load end is provided with breakpoint, and this breakpoint is connected with current sensor by wire clamp or plug, and the moving contact layout is on bridge-shaped contact, one end of bridge-shaped contact links to each other with spring, and the other end links to each other with transmission mechanism by the contact support.
Above-mentioned multi-functional control and protection switch electrical equipment, wherein, described operating mechanism and control electromagnet are positioned at the centre position of device for switching, and described protection module is positioned at load end one side of device for switching, and described power module is positioned at power end one side of device for switching.
Above-mentioned multi-functional control and protection switch electrical equipment; wherein; the power input of described control solenoid driver circuit is provided with machinery control contact; described machinery control contact links to each other with power supply by supplemental button, knob, so that the power supply of described control electromagnet separates with the power supply of protection module.
The present invention contrasts prior art following beneficial effect: multi-functional control provided by the invention and protection switch electrical equipment; the device for switching of the short circuit breaking function by adopting the modular structural design of integral type, provide the control function that has contactor concurrently, circuit breaker and the overload protection function of overload relay.In addition, whether as requested the present invention is used for judging control electromagnet normally closed or disconnection by the feedback contact is set, and improves the reliability of control.
Description of drawings
Fig. 1 a is the existing electrical system schematic diagram that is comprised of discrete device for switching;
Fig. 1 b is the electrical system schematic diagram that the existing integrated control and protective switching device that is made of the electromagnetic type protective device forms;
Fig. 1 c is the electrical system schematic diagram that the existing integrated control and protective switching device that is made of electronic protecting device forms;
Fig. 1 d is the existing electrical system schematic diagram that is comprised of the control and protective switching device of single failure Check processing cell formation;
Fig. 2 is multi-functional control of the present invention and protection switch electrical structure schematic diagram;
Fig. 3 is the structural representation of the present invention when controlling electromagnet and being in the close position;
Fig. 4 is short-circuit detecting circuit schematic diagram of the present invention;
Fig. 5 is multi-functional control and the protection switch electrical structure schematic diagram of band auxiliary contact of the present invention and button.
Among the figure:
1 power plant module, 2 power modules, 3 protection modules
12 control electromagnet, 13 release electromagnets, 14 operating mechanisms
The direct transmission mechanism part related with the control electromagnet of 15 transmission mechanism 15a
The transmission mechanism part 16 letter newspaper contact modules that 15b is direct related with operating mechanism
17 auxiliary contactor modules, 18 feedback contact modules, 21 power-switching circuits
22 machinery control contacts, 23 control solenoid driver circuits, 31 release electromagnet drive circuits
32 current sensors, 33 signal processing control unit 33a short-circuit detecting circuits
101 moving contacts, 102 fixed contacts, 103 bridge-shaped contacts
The 106 contact supports of 104 conductive plates, 105 springs
The contact of 107 feedback contact modules is supported 108 second springs, 109 arc control device
110 second auxiliary contact 111 supplemental button, 112 knobs (or button)
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Fig. 2 is multi-functional control of the present invention and protection switch electrical structure schematic diagram.
See also Fig. 2, multi-functional control provided by the invention and protection switch electrical equipment comprise power plant module 1, described power plant module comprises main circuit, control electromagnet 12, release electromagnet 13 and operating mechanism 14, described operating mechanism 14 is by the electric power loop of machinery control contact 22 break-makes control electromagnet 12, described operating mechanism 14 and letter newspaper contact module 16 and release electromagnet 13 machinery associations, described operating mechanism 14 are realized the breaking and closing of main circuit by transmission mechanism 15;
Integral type modular multifunctional control and protective switching device provided by the invention comprises power plant module 1, protection module 3, power module 2 three parts; each module machinery, electric aspect interrelated, cooperation, the device for switching of the overload protection function of the short circuit breaking function of the control function that has contactor concurrently, circuit breaker and overload relay can be provided.
In order to increase feedback control function, power plant module 1 can include feedback contact module 18.See also Fig. 3, transmission mechanism 15 generally comprises two parts, is respectively directly related with control electromagnet transmission mechanism 15a and transmission mechanism 15b direct and that operating mechanism is related.The contact of described feedback contact module 18 supports that 107 is related with transmission mechanism 15, can detect and judge control electromagnet 12 whether as requested normally closed or disconnection, the output of feedback contact module 18 and signal processing control unit 33 electrical connections, if control electromagnet 12 is regular event not, then signal processing control unit 33 can be sent alarm signal or pass through release electromagnet drive circuit 31 so that release electromagnet 13 dropout disjunction main circuits.The operation principle of auxiliary contactor module 17 is identical with feedback contact module 18 with mode, describes in detail no longer one by one at this.
In order to export fast control and protection signal, signal processing control unit 33 can comprise short-circuit detecting circuit 33a, after short trouble appearred in main circuit, described short-circuit detecting circuit 33a directly gave an order and triggers release electromagnet drive circuit 31 disjunction main circuits; When generic failure occurring, described signal processing control unit 33 is given an order by software analysis and is triggered release electromagnet drive circuit 31 disjunction main circuits.
Please continue referring to Fig. 4, the present invention is composed as follows for detection of the short-circuit detecting circuit 33a of short circuit current, voltage comparator U3D is according to reference voltage VR+, judge whether input signal IA1 maximum exceeds threshold value, otherwise then export trip signal and then do not export if exceed, voltage comparator U3C is according to reference voltage VR-, judge whether input signal IA1 minimum value exceeds threshold value, otherwise then export trip signal and then do not export if exceed, voltage comparator U3A, U4A principle are with voltage comparator U3D, and voltage comparator U3B, U4B principle are with voltage comparator U3C.Voltage comparator U3A, U3B, U3C, U3D, U4A, U4B output-parallel are when then this short-circuit detecting circuit 33a output short-circuit trip signal of 1 or above voltage comparator output trip signal is arranged.
The below then introduces the formation of each other formant module in detail:
1) formation of main circuit
The moving contact 101 of control and protective switching device and fixed contact 102 is used for connecting and the disjunction main circuit, and arc control device 109 are used for extinguishing fast the electric arc that connection and disjunction moment produce between dynamic and static contact.Fixed contact 102 is connected respectively to power end and load end by conductive plate 104, load end one side is provided with breakpoint, this breakpoint is connected with current sensor 32 by wire clamp or plug, moving contact 101 layouts are on bridge-shaped contact 103, bridge-shaped contact 103 is subject to the active force of spring 105 so that dynamic/static contact is closed, transmission mechanism 15 applies active force when contact is supported on 106 simultaneously, bridge-shaped contact 103 can be with the variation of moving contact 101 occurrence positions, the active force that applies when transmission mechanism 15 is during greater than the active force of spring 105, and dynamic/static contact disconnects; When transmission mechanism 15 did not apply active force to contact support 106, dynamic/static contact was closed under the effect of spring 105.
When dynamic/static contact was closed, the current direction of control and protective switching device inside was: arrive load end from flow through dynamic/static contact, wire clamp or plug, current sensor of power end.
In order to reduce heating; described operating mechanism 14 and control electromagnet 12 preferably are positioned at the centre position of device for switching; described protection module 3 is positioned at load end one side (rear portion) of device for switching, and described power module 2 is positioned at power end one side (front portion) of device for switching.Because power module 2 and protection module 3 are evenly distributed in the front and rear part of product; so that operating mechanism 14 and control electromagnet 12 comparatively medially layout in the product length direction; therefore the contact of product can be placed in the middle in the product length direction; be that arc control device 109 are placed in the middle symmetrical, the arc extinguishing space that can effectively utilize interiors of products dwindles outside flashover distance.In addition; because power module 2 and protection module 3 lay respectively at front portion and the rear portion of product; so that it is far away to connect in the wire clamp of main circuit or plug and the power module AC/DC change-over circuit partial distance in the power-switching circuit 21 in the protection module; being about to this pyrotoxin of wire clamp or this pyrotoxin of plug and AC/DC change-over circuit part effectively isolates; the pyrotoxin of interiors of products is evenly distributed improved radiating efficiency and effect, be conducive to the safety such as electronic devices and components, work reliably.
2) realization of contactor control function
Similar with contactor, control and protective switching device has control electromagnet and transmission mechanism thereof and is used to indicate the auxiliary contact of main contact state.
When external control power supply Us satisfies the rated value requirement, power-switching circuit 21 passes through the AC/DC conversion with Us, Us is converted to 3 road power supplys at least, offers respectively control solenoid driver circuit 23, signal processing control unit 33 and release electromagnet drive circuit 31.
The coil of control electromagnet 12 gets after electric that (this moment machinery control contact 22 is in the close position, operating mechanism does not apply active force on transmission mechanism 15b, transmission mechanism 15b only is subject to the effect of the second spring 108, do not separate and can support that 106 apply active force to contact with contact support 106), the adhesive of sound iron core, transmission mechanism 15a accepts the effect of the second spring 108 by transmission mechanism 15b, can not support 106 to apply active force to contact yet, be transmission mechanism 15a and transmission mechanism 15b all the application of force support that at contact on 106, then dynamic/static contact is closed.Simultaneously, the contact support 107 of the contact support of auxiliary contactor module 17 and feedback contact module 18 all is not subject to the effect of transmission mechanism 15b, all be not subject to the active force that transmission mechanism 15a transmits by transmission mechanism 15b yet, its inner contact state is compared with normality variation has been occured, transfer disconnection to such as normally closed contact, normally open contact transfers closure (normality herein is corresponding with control electromagnet open position) to.
(may be that machinery control contact 22 disconnects or the Us outage causes behind the coil losing electricity of control electromagnet 12, the situation of Us outage only is described) herein, the sound iron core of control electromagnet 12 is in the off-position, moving iron core drives transmission mechanism 15a motion and promotes transmission mechanism 15b and acts in the contact support 106, so that the moving contact 101 of main circuit and fixed contact 102 disconnect, simultaneously, when transmission mechanism 15a promotes transmission mechanism 15b, transmission mechanism 15b applies active force and supports on 107 at the contact of the contact support of auxiliary contactor module 17 and feedback contact module 18, and the contact state of auxiliary contactor module 17 and feedback contact module 18 inside reverts to normality.
Behind auxiliary contact 17 external power supplys and the indicator light, can be used for the indication of running status, also can be used for the electrical interlocks in the linear quadratic control circuit, the self-locking when also being used in external button control Us break-make etc.
3) realization of circuit breaker short circuit protection and overload relay generic failure defencive function
(control electromagnet 12 closures this moment after the closed energising of control and protective switching device main circuit; transmission mechanism 15a is subject to the active force of the spring 105 of transmission mechanism 15b transmission; do not support that to contact 106 transmit any active force); if current sensor 32 detects the fault that is short-circuited in the circuit; signal processing control unit 33 will receive fault current and change fault-signal into; and directly be judged as short trouble by short-circuit detecting circuit 33a contrast; this moment hardware circuit on the one hand directly trigger release drive circuit 31 so that release electromagnet 13 with pneumatic operating mechanism 14 with the fastest speed disjunction main circuit (operating mechanism applies active force to transmission mechanism 15b so that contact support 106 separates with fixed contact 102 with moving contact 101); the simultaneously action driving mechanical of operating mechanism 14 control contact 22 disconnects so that control electromagnet 12 disconnects; on the other hand; fault-signal is given signal processing control unit 33, carries out software and calculates; report to the police and record after analyzing.
Generic failure occurs in the circuit if current sensor 32 detects, signal processing control unit 33 will receive fault current and change fault-signal into, by being judged as generic failure behind the short-circuit detecting circuit 33a, fault-signal is fed to signal processing control unit 33, carry out triggering release electromagnet drive circuit 31 after software calculates, analyzes so that release electromagnet 13 band pneumatic operating mechanism disjunction main circuits, the simultaneously action driving mechanical of operating mechanism control contact 22 disconnects so that control electromagnet 12 disconnects, on the other hand, report to the police and record this fault.
The rear release electromagnet 13 that breaks down moves, can drive one or more groups (normally closed or the often hold) contact action in the letter newspaper contact module 16, namely inner contact state changes, transfer disconnection to such as normally closed contact, normally open contact transfers closure to, and letter newspaper contact module 16 can be by breaking down in the indication circuits such as external power supply and indicator light.
4) manual operation of operating mechanism:
The auto-action of operating mechanism has been described in the front, i.e. the action of trip free under the failure condition, and operating mechanism is in trip status, and at this moment, transmission mechanism 15b promotes contact and supports 106 so that the main circuit dynamic/static contact disconnects, and release electromagnet 13 is in release condition.
Can also be by knob 112(or button) operating mechanism 14 is manually controlled, when manual control so that operating mechanism 14 is in co-bit when putting, transmission mechanism 15b and contact are supported 106 disengagings, machinery control contact 22 closures, control electromagnet 12 promotes transmission mechanism 15b by transmission mechanism 15a the break-make of main circuit is controlled, and this moment, letter reported one or more groups contact state with manually control interlock in the contact module 16 to remain on Chang Kai or normally off; When manual control so that operating mechanism 14 be in when closing location status, release electromagnet 13 is in the close position, transmission mechanism 15b promotes contact and supports 106 so that main circuit is moving, fixed contact disconnects, machinery control contact 22 disconnects, at this moment, control electromagnet 12 also is in off-state, transmission mechanism 15a also applies active force by transmission mechanism 15b and supports on 106 at contact, be that transmission mechanism 15a and transmission mechanism 15b apply active force jointly in contact support 106, it is opposite when putting that the contact state of one or more groups in this moment letter newspaper contact module 16 and manually control interlock and operating mechanism 14 are in co-bit, and letter is opposite when reporting one or more groups contact that links with release electromagnet 13 in the contact module 16 and operating mechanism 14 to be in trip status.Operating mechanism 14 can also return to co-bit with the operating mechanism 14 of trip status by manual operation and put.Concrete operating mechanism can adopt existing various operating mechanism or improved operating mechanisms, and the application number that proposes such as the applicant is 200610119125.1, and name is called the application documents of " with the switch operating mechanism of locking device ", is not described in detail in this.
5) enforcement of control electromagnet and release electromagnet:
The enforcement of control electromagnet 12 and release electromagnet 13 can be adopted existing various embodiments in multi-functional control of the present invention and the protection switch electrical equipment; the application number that proposes such as the applicant is 200810202045.1; name is called the application documents of " a kind of electromagnet for low-voltage electric appliance of characteristic optimizing "; application number is 200810202043.2; name is called the application documents of " a kind of release electromagnet apparatus of low-voltage electrical apparatus ", is not described in detail in this.
Fig. 5 is multi-functional control and the protection switch electrical structure schematic diagram of band auxiliary contact of the present invention and button.See also Fig. 5; present embodiment is except having the external control power input terminal (A1 among Fig. 5; the A2 terminal) outside; also increased control terminal A3; A4; during use; A1; A2 terminal access external control power supply Us; respectively power supply is delivered to power-switching circuit 21 and control solenoid driver circuit 23; power supply to power-switching circuit 21 directly inject (power supply to the power-switching circuit 21 through conversion; divide the release electromagnet drive circuit 31 of delivering in the protection module 3; signal controlling processing unit 33; and provide power supply for the control solenoid driver circuit 23 in the power module); also be subject to machinery to the power supply of controlling solenoid driver circuit 23 and control contact 22 and control terminal A3; the control of A4; only as machinery control contact 22 and control terminal A3; when A4 all connects; control solenoid driver circuit 23 just electric; namely when operating mechanism 14 is in co-bit and puts (at this moment; machinery control contact 22 closures); A3; between the A4 terminal by supplemental button 111 grades other electrical equipment that can control break-make connect and during disjunction; 23 of solenoid driver circuits of control can obtain or deenergization so that control electromagnet 12 adhesives or release, thereby finish connection and the disjunction of main circuit.At this moment, can use second auxiliary contact 110 related with control electromagnet 12 of CPS to carry out self-locking (as previously mentioned).Under this typical occupation mode; because being applied to the power supply of release electromagnet drive circuit 31 in the protection module 3 and signal controlling processing unit 33 separates with the power supply that is applied to control electromagnet 12; namely be not subjected to the control of supplemental button 111; even the situation of frequent operation; the special drive circuit 31 of signal controlling processing unit 33 and dropout electromagnetism also is in the state that working power normally provides all the time; the power supply of namely controlling electromagnet 12 separates with the power supply of protection module 3; protection module 3 can not cut off the power supply during the outage of control electromagnet 12, therefore can realize easily frequent operation and there is not any additional adverse effect in life-span of electronic devices and components.
Although the present invention discloses as above with preferred embodiment; so it is not to limit the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (5)
1. a multi-functional control and protection switch electrical equipment is characterized in that, comprising:
Power plant module (1), described power plant module comprises main circuit, control electromagnet (12), release electromagnet (13) and operating mechanism (14), described operating mechanism (14) is by the electric power loop of machinery control contact (22) break-make control electromagnet (12), described operating mechanism (14) is realized the breaking and closing of main circuit with letter newspaper contact (16) and release electromagnet (13) machinery association, described operating mechanism (14) by transmission mechanism (15);
Protection module (3), described protection module comprise signal processing control unit (33), release electromagnet drive circuit (31) and current sensor (32); The primary circuit of described current sensor (32) is connected with main circuit by wire clamp or plug, and the induced signal of the secondary circuit of current sensor links to each other with signal processing control unit (33), thereby realizes detection and judgement to main circuit current;
Power module (2), described power module comprises power-switching circuit (21), provide respectively power supply to control solenoid driver circuit (23), release electromagnet drive circuit (31) and signal processing control unit (33), described control solenoid driver circuit (23) drives control electromagnet (12), and described release electromagnet drive circuit (31) drives release electromagnet (13);
Described signal processing control unit (33) comprises short-circuit detecting circuit (33a), and after short trouble appearred in main circuit, described short-circuit detecting circuit (33a) was directly given an order and triggered release electromagnet drive circuit (31) disjunction main circuit; When generic failure occurring, described signal processing control unit (33) is given an order by software analysis and is triggered release electromagnet drive circuit (31) disjunction main circuit.
2. multi-functional control as claimed in claim 1 and protection switch electrical equipment; it is characterized in that; described power plant module (1) includes feedback contact module (18); the contact support (107) of described feedback contact module (18) is related with transmission mechanism (15); detect and judge control electromagnet (12) whether as requested normally closed or disconnection; the output of feedback contact module (18) and signal processing control unit (33) electrical connection; if control electromagnet (12) is regular event not, then signal processing control unit (33) can be sent alarm signal or pass through release electromagnet drive circuit (31) so that release electromagnet (13) dropout disjunction main circuit.
3. such as the described arbitrary multi-functional control of claim 1～2 and protection switch electrical equipment, it is characterized in that, described main circuit comprises moving contact (101) and fixed contact (102) is used for connecting and the disjunction main circuit, described moving contact (101), fixed contact (102) and arc control device (109) link to each other, and described arc control device (109) are used for extinguishing fast to be connected and electric arc that disjunction moment produces between dynamic and static contact; Fixed contact is connected respectively to power end and load end by conductive plate (104), load end is provided with breakpoint, this breakpoint is connected with current sensor (32) by wire clamp or plug, moving contact (101) layout is on bridge-shaped contact (103), one end of bridge-shaped contact (103) links to each other with spring (105), and the other end links to each other with transmission mechanism (15) by contact support (106).
4. such as the described arbitrary multi-functional control of claim 1～2 and protection switch electrical equipment; it is characterized in that; described operating mechanism (14) and control electromagnet (12) are positioned at the centre position of device for switching; described protection module (3) is positioned at load end one side of device for switching, and described power module (2) is positioned at power end one side of device for switching.
5. such as the described arbitrary multi-functional control of claim 1～2 and protection switch electrical equipment; it is characterized in that; the power input of described control solenoid driver circuit (23) is provided with machinery control contact (22); described machinery control contact (22) links to each other with power supply by supplemental button (111), knob (112), so that the power supply of described control electromagnet (12) separates with the power supply of protection module (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010258782 CN101924344B (en) | 2010-08-20 | 2010-08-20 | Multifunction control and protection switch device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010258782 CN101924344B (en) | 2010-08-20 | 2010-08-20 | Multifunction control and protection switch device |
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| CN101924344A CN101924344A (en) | 2010-12-22 |
| CN101924344B true CN101924344B (en) | 2013-03-20 |
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| CN 201010258782 Active CN101924344B (en) | 2010-08-20 | 2010-08-20 | Multifunction control and protection switch device |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2800220B1 (en) * | 2011-12-26 | 2016-10-26 | Seari Electric Technology Co., Ltd. | Control and protection device for low-voltage electrical appliance |
| CN103177905B (en) * | 2011-12-26 | 2015-04-29 | 上海电科电器科技有限公司 | Control and protection device of low-voltage apparatus |
| CN103177884B (en) | 2011-12-26 | 2016-09-14 | 上海电科电器科技有限公司 | The structure of contact terminal of low-voltage electrical apparatus |
| CN103545794B (en) * | 2012-07-12 | 2017-04-12 | 上海电科电器科技有限公司 | Protecting module of control and protection switching device |
| CN103580004A (en) * | 2012-07-25 | 2014-02-12 | 江苏创能电器有限公司 | Control and protection switch controller |
| CN102969694A (en) * | 2012-12-18 | 2013-03-13 | 张腾 | Terminal operator protection circuit of direct-current power supply system |
| CN104777769A (en) * | 2014-01-09 | 2015-07-15 | 浙江合极电气科技有限公司 | Centralized control device for control and protective switching devices |
| CN112213634B (en) * | 2020-10-26 | 2023-05-09 | 浙江天正电气股份有限公司 | Method and device for detecting running state of circuit breaker |
| CN113418559A (en) * | 2021-06-22 | 2021-09-21 | 湖南第一师范学院 | Power load monitoring device |
| CN113745062B (en) * | 2021-08-16 | 2023-09-29 | 国网浙江省电力有限公司湖州供电公司 | Electromagnetic type alternating current contactor fault self-healing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1397972A (en) * | 2001-07-18 | 2003-02-19 | 施耐德电器工业公司 | Switch of multipolar contactor-breaker |
| CN1589516A (en) * | 2001-11-16 | 2005-03-02 | 旋耐德电器工业公司 | Control and protection module of a switch device |
| CN1972050A (en) * | 2006-12-05 | 2007-05-30 | 上海电器科学研究所（集团）有限公司 | A multifunctional electric apparatus with programmable and trip circuit output |
| CN101477922A (en) * | 2008-12-16 | 2009-07-08 | 上海电器科学研究所（集团）有限公司 | Motherboard electric connection construction for protection electric appliance controlling |
| CN201781272U (en) * | 2010-08-20 | 2011-03-30 | 上海电科电器科技有限公司 | Multifunctional control and protection switch apparatus |
-
2010
- 2010-08-20 CN CN 201010258782 patent/CN101924344B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1397972A (en) * | 2001-07-18 | 2003-02-19 | 施耐德电器工业公司 | Switch of multipolar contactor-breaker |
| CN1589516A (en) * | 2001-11-16 | 2005-03-02 | 旋耐德电器工业公司 | Control and protection module of a switch device |
| CN1972050A (en) * | 2006-12-05 | 2007-05-30 | 上海电器科学研究所（集团）有限公司 | A multifunctional electric apparatus with programmable and trip circuit output |
| CN101477922A (en) * | 2008-12-16 | 2009-07-08 | 上海电器科学研究所（集团）有限公司 | Motherboard electric connection construction for protection electric appliance controlling |
| CN201781272U (en) * | 2010-08-20 | 2011-03-30 | 上海电科电器科技有限公司 | Multifunctional control and protection switch apparatus |
Also Published As
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| CN101924344A (en) | 2010-12-22 |
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