CN201781272U - Multifunctional control and protection switch apparatus - Google Patents
Multifunctional control and protection switch apparatus Download PDFInfo
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- CN201781272U CN201781272U CN2010202992850U CN201020299285U CN201781272U CN 201781272 U CN201781272 U CN 201781272U CN 2010202992850 U CN2010202992850 U CN 2010202992850U CN 201020299285 U CN201020299285 U CN 201020299285U CN 201781272 U CN201781272 U CN 201781272U
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Abstract
The utility model discloses a multifunctional control and protection switch apparatus, which comprises a power module, a protection module and a power module. The power module comprises a main circuit, a control electromagnet, a tripping electromagnet and an operating mechanism, the operating mechanism mechanically controls on and off of a contact to control a power loop of the electromagnets and is mechanically connected in parallel with a message contact module and the tripping electromagnet, the operating mechanism realizes breaking and closing of the main circuit through a transmission mechanism, the protection module comprises a tripping electromagnet driving circuit, a current sensor and a signal processing control unit, and the power module respectively provides power for a control electromagnet driving circuit, the tripping electromagnet driving circuit and the signal processing control unit. The multifunctional control and protection switch apparatus adopts the integral modular structural design, and has a control function of a contactor, a short circuit breaking function of a circuit breaker and an overload protection function of an overload relay.
Description
Technical field
The utility model relates to a kind of control and protection switch electrical equipment, relates in particular to a kind of multi-functional control and protection switch electrical equipment, belongs to the low voltage electrical apparatus technology field.
Background technology
The electrical system that general low-voltage electrical apparatus constitutes mainly contains dual mode: a kind of is by realizing protective effect (distribution apparatus respectively; be mainly circuit breaker) and control action (control apparatus; be mainly contactor and thermal relay or motor protector) the device for switching of discrete constitute; independent separately the installation; two kinds of electrical equipment series connection are connected (shown in Fig. 1 a) between power supply and the load.The operating mechanism of distribution apparatus is accepted the fault-signal of detecting unit and is threaded off and the main circuit of disjunction distribution apparatus, and the control circuit of control apparatus is accepted artificial or control signal and operate electromagnetic system and connect or the main circuit of disjunction control apparatus automatically.
Another kind is promptly to control with the integrated multifunctional electric appliance of protective effect and protection switch electrical equipment (abbreviating CPS as) formation by having control simultaneously, and its structure formation is generally modular integrated mounting means, is connected between power supply and the load.Its protective device is divided into electromagnetic type protective device, two kinds of forms of electronic type protective device.
Wherein, for the CPS(that constitutes by the electromagnetic type protective device fully shown in Fig. 1 b); its operating mechanism can be accepted the generic failure (fault except that short circuit; as faults such as overload, the phases failure) fault-signal of detecting unit realize dividing 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 also has short-circuit protection tripping system (being short trouble detecting unit and high speed electromagnetic system) simultaneously, and short trouble directly acts on main circuit mechanically when taking place.
For the CPS that is made of the electronic type protective device, whether acting on tripping mechanism by protective device has two kinds of different schemes again.
A kind of is that protective device is by independently generic failure detecting unit and short trouble detecting unit are formed, generic failure does not directly act on operating mechanism (shown in Fig. 1 c) mechanically, and a pair of machinery control contact (as the control of the machinery among Fig. 1 c contact 2) of connecting with control circuit is operated, branch by controlling machinery control contact 2 with close, realize by control circuit operation electromagnetic system branch 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 main circuit mechanically.
Another kind is that protective device is formed (shown in Fig. 1 d) by single fault detect processing unit; generic failure and short trouble detect processing unit by this single failure and detect and handle; when different faults takes place; 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 made up 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 an associated sequence numbers among document Fig. 1), but have following problem:
Though solved the 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 make contact arc-extinguishing system be 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 bigger space during use and may bring potential safety hazard.Protection is connected with main circuit by wire clamp or plug on the one hand with control device, carries out voltage transitions on the one hand, and the former contact resistance and the latter's AC/DC conversion all can produce bigger heating, causes heating concentrated relatively, is unfavorable for the normal of electronic devices and components.Working electromagnet lacks the state feedback link, has reduced the reliability of using.When using, 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 as the contactor function.
Therefore, the control of integral type modular multifunctional and the protection switch electrical equipment that are necessary to provide new.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of multi-functional control and protection switch electrical equipment, has the controlled function of contactor, the short circuit breaking function of circuit breaker and the overload protection function of overload relay concurrently.
The utility model is to solve 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 power supply to control solenoid driver circuit, release electromagnet drive circuit and signal processing control unit respectively.
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 control electromagnet regular event not, then signal processing control unit can be sent alarm signal or make release dropout disjunction main circuit by the release electromagnet drive 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 used for extinguishing 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, makes the power supply of described control electromagnet separate with the power supply of protection module.
The utility model contrast prior art has following beneficial effect: multi-functional control that the utility model provides 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 controlled function that has contactor concurrently, circuit breaker and the overload protection function of overload relay.In addition, whether as requested the utility model 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 of being made up of discrete device for switching;
Fig. 1 b is the electrical system schematic diagram that existing integrated control that is made of the electromagnetic type protective device and protection switch electrical equipment are formed;
Fig. 1 c is the electrical system schematic diagram that existing integrated control that is made of the electronic type protective device and protection switch electrical equipment are formed;
Fig. 1 d existingly detects the electrical system schematic diagram that control that processing unit constitutes and protection switch electrical equipment are formed by single failure;
Fig. 2 is the utility model multi-functional control and protection switch electrical structure schematic diagram;
Structural representation when Fig. 3 is in the close position for the utility model control electromagnet;
Fig. 4 is a short-circuit detecting circuit schematic diagram of the present utility model;
Fig. 5 is the multi-functional control and the protection switch electrical structure schematic diagram of the utility model band auxiliary contact and button.
Among the figure:
1 power plant module, 2 power modules, 3 protection modules
12 control electromagnet, 13 release electromagnets, 14 operating mechanisms
15 transmission mechanism 15a directly with control the related transmission mechanism part of electromagnet
The transmission mechanism part 16 letter newspaper contact modules that 15b is directly related with operating mechanism
17 auxiliary contact 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 utility model will be further described below in conjunction with drawings and Examples.
Fig. 2 is the utility model multi-functional control and protection switch electrical structure schematic diagram.
See also Fig. 2, multi-functional control that the utility model provides 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;
Power module 2, described power module comprises power-switching circuit 21, provides power supply to control solenoid driver circuit 23, release electromagnet drive circuit 31 and signal processing control unit 33 respectively.
The integral type modular multifunctional control that the utility model provides comprises power plant module 1, protection module 3, power module 2 three parts with protection switch electrical equipment; each module machinery, electric aspect interrelated, cooperation, the device for switching of the overload protection function of the short circuit breaking function of the controlled 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 direct and the related transmission mechanism 15b of operating mechanism.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 and the signal processing control unit 33 of feedback contact module 18 are electrically connected, if control electromagnet 12 regular event not, then signal processing control unit 33 can be sent alarm signal or make release electromagnet 13 dropout disjunction main circuits by release electromagnet drive circuit 31.The operation principle of auxiliary contact 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 control and protection signal fast, 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, it is composed as follows that the utility model is used to detect 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 as 1 or above voltage comparator output trip signal this short-circuit detecting circuit 33a output short-circuit trip signal then.
Then introduce the formation of each other formant module below in detail:
1) formation of main circuit
Control is used for connecting and the disjunction main circuit with the moving contact 101 of protection switch electrical equipment and fixed contact 102, 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, the active force that bridge-shaped contact 103 is subjected to spring 105 makes the dynamic/static contact closure, 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, control with the current direction of protection switch electrical equipment 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; make 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 arc control device 109 symmetries placed in the middle, the arc extinguishing space that can effectively utilize product inside dwindles outside flashover distance.In addition; because power module 2 and protection module 3 lay respectively at the front portion and the rear portion of product; make that the AC/DC change-over circuit partial distance in the power-switching circuit 21 is far away in the wire clamp that connects main circuit in the protection module or plug and the power 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 product inside is evenly distributed improved radiating efficiency and effect, help safety such as electronic devices and components, work reliably.
2) realization of contactor controlled function
Similar with contactor, control has control electromagnet and transmission mechanism thereof with protection switch electrical equipment 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 control solenoid driver circuit 23, signal processing control unit 33 and release electromagnet drive circuit 31 respectively.
The coil of control electromagnet 12 gets electric back, and (machinery control this moment contact 22 is in the close position, operating mechanism does not apply active force on transmission mechanism 15b, transmission mechanism 15b only is subjected to the effect of second spring 108, do not separate and can support that 106 apply active force with contact support 106) to contact, the adhesive of sound iron core, transmission mechanism 15a accepts the effect of 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 not the application of force support on 106 dynamic/static contact closure then at contact.Simultaneously, the contact support 107 of the contact support of auxiliary contact module 17 and feedback contact module 18 all is not subjected to the effect of transmission mechanism 15b, all be not subjected 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 taken place, transfer disconnection to 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, make the moving contact 101 and the fixed contact 102 of main circuit disconnect, simultaneously, when transmission mechanism 15a promotes transmission mechanism 15b, transmission mechanism 15b applies active force and supports on 107 in the contact support of auxiliary contact module 17 and the contact of feedback contact module 18, and the contact state of auxiliary contact 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 secondary control circuit, 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 (is controlled electromagnet 12 closures this moment with the closed energising of protection switch electrical equipment main circuit back; transmission mechanism 15a is subjected 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; the direct on the one hand release drive circuit 31 that triggers of hardware circuit this moment makes release electromagnet 13 drive operating mechanisms 14 with the fastest speed disjunction main circuit (operating mechanism applies active force to transmission mechanism 15b makes contact support 106 be with moving contact 101 to separate with fixed contact 102); the action of operating mechanism 14 simultaneously drives 22 disconnections of machinery control contact makes control electromagnet 12 disconnect; on the other hand; fault-signal is given signal processing control unit 33, carries out computed in software; analyzing the back reports to the police and record.
If current sensor 32 detects generic failure takes place in the circuit, signal processing control unit 33 will receive fault current and change fault-signal into, be judged as generic failure by short-circuit detecting circuit 33a after relatively, fault-signal is fed to signal processing control unit 33, triggering release electromagnet drive circuit 31 makes release electromagnet 13 drive operating mechanism disjunction main circuits after carrying out computed in software, analysis, the action of operating mechanism simultaneously drives 22 disconnections of machinery control contact makes control electromagnet 12 disconnect, on the other hand, report to the police and write down this fault.
The back release electromagnet 13 that breaks down moves, can drive one or more groups (normally closed or often hold) the contact action in the letter newspaper contact module 16, promptly Nei Bu contact state changes, transfer disconnection to 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 support 106 makes the main circuit dynamic/static contact disconnect, 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 makes operating mechanism 14 be in to close the position, 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 makes that operating mechanism 14 is in the pass location status, release electromagnet 13 is in the close position, transmission mechanism 15b promotes contact support 106 makes main circuit 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, 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 opposite when being in and closing the position, 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 the operating mechanism 14 of trip status by manual operation and close the position.Concrete operating mechanism can adopt existing various operating mechanism or improved operating mechanisms, and the application number that proposes as the applicant is 200610119125.1, and name is called the application documents of " switch operating mechanism that has 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 the utility model multi-functional control and the protection switch electrical equipment; the application number that proposes as the applicant is 200810202045.1; name is called the application documents of " a kind of low-voltage electrical apparatus electromagnet 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 the multi-functional control and the protection switch electrical structure schematic diagram of the utility model band auxiliary contact 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; the A2 terminal inserts 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 of delivering in the protection module 3 31; signal controlling processing unit 33; and provide power supply for the control solenoid driver circuit 23 in the power module); also be subjected 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; promptly be in when closing the position (at this moment at operating mechanism 14; machinery control contact 22 closures); A3; wait the electrical equipment of other may command break-makes to connect and during disjunction by supplemental button 111 between the A4 terminal; 23 of solenoid driver circuits of control can obtain or deenergization feasible control electromagnet 12 adhesives or release, thereby finish the connection and the disjunction of main circuit.At this moment, can use second auxiliary contact 110 related of CPS to carry out self-locking (as previously mentioned) with control electromagnet 12.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; promptly 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 promptly 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 frequent operation easily and there is not any additional adverse effect in life-span of electronic devices and components.
Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; any those skilled in the art; in not breaking away from spirit and scope of the present utility model; when doing a little modification and perfect, therefore protection range of the present utility model is worked as with being as the criterion that claims were defined.
Claims (6)
1. 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 power supply to control solenoid driver circuit (23), release electromagnet drive circuit (31) and signal processing control unit (33) respectively, described control solenoid driver circuit (23) drive controlling electromagnet (12), described release electromagnet drive circuit (31) drives release electromagnet (13).
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 and the signal processing control unit (33) of feedback contact module (18) are electrically connected; if control electromagnet (12) regular event not, then signal processing control unit (33) can be sent alarm signal or make release electromagnet (13) dropout disjunction main circuit by release electromagnet drive circuit (31).
3. multi-functional control as claimed in claim 1 and protection switch electrical equipment is characterized in that, described signal processing control unit (33) comprises short-circuit detecting circuit (33a).
4. as described arbitrary multi-functional control of claim 1～3 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).
5. as described arbitrary multi-functional control of claim 1～3 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.
6. as described arbitrary multi-functional control of claim 1～3 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), makes the power supply of described control electromagnet (12) separate with the power supply of protection module (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202992850U CN201781272U (en) | 2010-08-20 | 2010-08-20 | Multifunctional control and protection switch apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202992850U CN201781272U (en) | 2010-08-20 | 2010-08-20 | Multifunctional control and protection switch apparatus |
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| Publication Number | Publication Date |
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| CN201781272U true CN201781272U (en) | 2011-03-30 |
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| CN2010202992850U Expired - Lifetime CN201781272U (en) | 2010-08-20 | 2010-08-20 | Multifunctional control and protection switch apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924344A (en) * | 2010-08-20 | 2010-12-22 | 上海电科电器科技有限公司 | Multifunction control and protection switch device |
| CN103545794A (en) * | 2012-07-12 | 2014-01-29 | 上海电科电器科技有限公司 | Protecting module of control and protection switching device |
-
2010
- 2010-08-20 CN CN2010202992850U patent/CN201781272U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924344A (en) * | 2010-08-20 | 2010-12-22 | 上海电科电器科技有限公司 | Multifunction control and protection switch device |
| CN101924344B (en) * | 2010-08-20 | 2013-03-20 | 上海电科电器科技有限公司 | Multifunction control and protection switch device |
| CN103545794A (en) * | 2012-07-12 | 2014-01-29 | 上海电科电器科技有限公司 | Protecting module of control and protection switching device |
| 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 |
| US9847197B2 (en) | 2012-07-12 | 2017-12-19 | Seari Electric Technology Co., Ltd. | Protection module for control and protective switching device |
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