CN204155867U - A kind of main circuit of control and protective switching device - Google Patents
A kind of main circuit of control and protective switching device Download PDFInfo
- Publication number
- CN204155867U CN204155867U CN201420607546.9U CN201420607546U CN204155867U CN 204155867 U CN204155867 U CN 204155867U CN 201420607546 U CN201420607546 U CN 201420607546U CN 204155867 U CN204155867 U CN 204155867U
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- China
- Prior art keywords
- arc
- shell
- extinguish chamber
- main circuit
- control
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- Expired - Fee Related
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a kind of main circuit of control and protective switching device, comprise shell, arc-extinguish chamber, brace, contact bridge, fixing fagging, described arc-extinguish chamber is arranged in the arc control device of shell, described brace, contact bridge, fixing fagging is all arranged in shell, described pedestal and upper cover are connected and fixed by securing member, be provided with in described shell for being fixedly connected with sheet, the location division of fixing fagging and arc-extinguish chamber, described shell is provided with short-circuit protection characteristic test mouth, described brace is provided with striking pin on one end of arc-extinguish chamber, described striking pin is arranged in arc-extinguish chamber.By arranging securing member on main circuit shell; main circuit shell is made to have more fixed effect; by pedestal and on cover location division be set; internal components is made to have more fixed effect; by arranging larger arc-extinguish chamber; making main circuit have more extinguishing arc effect, by arranging short-circuit protection characteristic test mouth, making complete machine more reliable in practical work process.
Description
Technical field
The utility model relates to a kind of main circuit of device for switching, especially a kind of main circuit of control and scheduling co-design open pipe electrical equipment.
Background technology
The function of circuit breaker, contactor, thermal relay and isolator well combines together by control and protective switching device; reasonably carry out the co-ordination of each discrete component protective feature, control characteristic cooperation; the occasions such as the control system of automatic centralized control system and Fieldbus Based distributed production line can be widely used in, such as, electrical control and the protection system such as illumination, Power convert, pump, blower fan, air-conditioning in the Motor Control in the fields such as metallurgy, colliery, iron and steel, petrochemical industry, harbour, boats and ships, railway and protection system and modern architecture.
In prior art, the main circuit (circuit breaker) of control and protective switching device comprises shell, arc-extinguish chamber, brace, contact bridge, fixing fagging and flow restricter coil, its housing comprises pedestal and upper cover, make just to constitute a complete shell when pedestal and upper cover close, arc control device are provided with in described shell, described arc-extinguish chamber is arranged in arc control device, described fixing fagging is arranged on pedestal and contacts on that face of base when seated, when housing vertical is installed, described two arc-extinguish chambers are separately positioned on above the two ends of fixing fagging, described two arc-extinguish chambers to have been conflicted two braces respectively relative to the other end of fixing fagging of conflicting, described two braces are arranged on pedestal, described two braces are respectively arranged with two contacts on that face of fixing fagging, described fixing fagging is elasticly connected with contact bridge, described contact bridge side elasticity is connected to fixing fagging, opposite side contacts at two braces, the two ends that described contact bridge contacts at brace are provided with contact, when producing switch motion, contact on brace is with the contact on contact bridge or be separated, electric arc can be produced in this process, electric arc dissociates and extinguishing arc in arc-extinguish chamber.
Described flow restricter coil includes a Self-resetting button and reset and buckle, be arranged on pedestal, conflict and have metal link rod in one end of described Self-resetting button, described metal link rod is also connected with contact-support, described contact-support contacts at contact bridge, therefore, when applying external force to the Self-resetting button of flow restricter coil, the other end of the Self-resetting button of flow restricter coil is made to promote metal link rod, drive contact-support action, contact-support just drives contact bridge that contact bridge is separated with brace and final a certain position, place, when the reset of stirring flow restricter coil with hand is buckled, metal link rod just can reset, contact bridge and brace are contacted again.
The structure of above-mentioned main circuit (circuit breaker) is simple, lack some fixing designs, and all can produce vibration in the process that brace contacts with contact bridge at every turn, when lacking fixing design easily there is slippage in the device of main circuit inside, and arc control device design is less than normal, the space that when causing arc extinguishing, electric arc is free is inadequate, and arc quenching effect is bad.And main circuit produces mechanical oscillation ratio part more frequently, and can electric arc be produced when switch motion, in addition, above-mentioned main circuit also lacks the test port facilitating test products, therefore relatively bother in Product checking, also may cause can't detect bit strip to carry out product in real work, occur unstable phenomenon, so improve with carrying out refinement more main circuit, the fixed effect and the arc quenching effect that improve main circuit are very important.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is the main circuit providing a kind of control and protective switching device, comprise shell, arc-extinguish chamber, brace, contact bridge, fixing fagging, described shell comprises pedestal and upper cover, described arc-extinguish chamber is arranged in the arc control device of shell, described brace, contact bridge, fixing fagging is all arranged in shell, described shell is also provided with wire hole, it is characterized in that: described pedestal and upper cover are connected and fixed by securing member, be provided with in described shell for being fixedly connected with sheet, the location division of fixing fagging and arc-extinguish chamber, described shell is provided with short-circuit protection characteristic test mouth, described brace is provided with striking pin on one end of arc-extinguish chamber, described striking pin is arranged in arc-extinguish chamber.
The utility model is set to further:
Described pedestal is connected by screw thread with upper cover.
Described fixed part comprises bar shaped holddown groove, locating convex block, location notch and locating piece.
Described bar shaped location notch and locating convex block are arranged in arc control device, and described arc extinguishing grid pieces is arranged in bar shaped location notch, and the concave part of described arc-extinguish chamber is set on locating convex block.
Described location notch is arranged on shell, and described fixing fagging is embedded in location notch, and the two ends of described fixing fagging contact at arc-extinguish chamber.
Described locating piece is arranged on shell, and described brace is set on locating piece, and the fixed contact on described brace contacts at the moving contact on contact bridge, and the striking pin on described brace is conflicted on the arc extinguishing grid pieces of arc-extinguish chamber.
The arc grid of described arc-extinguish chamber is 13.
The pore size of described wire hole is applicable to the wire of 45A.
Being described in detail as follows of the main circuit of the utility model control and protective switching device:
In the structural representation of the pedestal shown in Fig. 1 and upper cover, described pedestal and upper cover constitute the shell of main circuit, the arc control device for placing arc-extinguish chamber are provided with in described shell, described pedestal and on cover and offer several screwed holes, described pedestal is connected by screw thread with upper cover, described pedestal with on cover and be provided with for being fixedly connected with sheet, the location division of fixing fagging and arc-extinguish chamber, described pedestal and above cover the bar shaped location notch being provided with some roads and matching with the arc grid of arc-extinguish chamber, described bar shaped location notch is the parallel strip groove in some roads.Described pedestal and above cover the location notch being provided with and matching with fixing fagging, described location notch be two projections with together with the structure that forms of groove.Described pedestal and above cover the locating piece being provided with and matching with brace.Described locating piece is the suitable projection cube structure of profile and brace kink.Described shell is also respectively arranged with the wire hole for placing wire, the design comparison in described hole is large, is applicable to thicker wire.
In the arc-extinguish chamber schematic diagram shown in Fig. 2, the volume of described arc-extinguish chamber is larger compared to common arc-extinguish chamber, and described arc-extinguish chamber is provided with 13 arc grid, more than common arc-extinguish chamber.
The main circuit of control and protective switching device of the present utility model; make shell connection more firm by arranging securing member; by arranging location division, brace, arc-extinguish chamber and fixing fagging being securely fixed in shell more, making main circuit have better arc quenching effect by arranging more jumbo arc-extinguish chamber.
Accompanying drawing explanation
Fig. 1 is the structural representation of upper cover of the present utility model;
Fig. 2 is the structural representation of pedestal of the present utility model;
Fig. 3 is arc-extinguish chamber schematic diagram.
In figure: 1, pedestal; 2, upper cover; 3, location division; 30, bar shaped location notch; 31, location notch; 32, locating piece; 33, locating convex block; 4, screwed hole; 5, short-circuit protection characteristic test mouth; 6, arc-extinguish chamber; 60, arc grid; 7, wire hole; 8, striking pin.
Embodiment
The structural representation of the reference structural representation of the upper cover (2) shown in Fig. 1 and the pedestal (1) shown in Fig. 2, the pedestal (1) of the control and protective switching device main circuit of the present embodiment and upper cover (2) have offered screwed hole (4), and by 3 screws, pedestal (1) is fixedly connected with upper cover (2), therefore, the mode that the pedestal (1) of main circuit of the present utility model and upper cover (2) are connected by screw does not take the fixed form of securing member compared to tradition, there is better fastness, and contact chip when working in logical high-tension situation, its adhesive all will produce larger mechanical oscillation with disconnection action, because contact chip is again be fixedly installed on pedestal (1) and upper cover (2), therefore vibration can reach on pedestal (1) and upper cover (2), if fixing insecure between pedestal (1) and upper cover (2), when being subject to vibrating, the joint of pedestal (1) and upper cover (2) must be caused to occur gap, first the fixed effect of internal components may be caused not good, occur loosening, even depart from original fixing position, loose contact can be caused like this and power-off or cause because of loose contact contact current excessive and burn contact, secondly, all electric arc can be produced when contact chip adhesive or disconnection, electric arc carries out extinguishing arc by arc control device, if there is gap in the joint of pedestal (1) and upper cover (2), electric arc will be caused to overflow from gap, if multiple main circuit occurs that electric arc overflows, the situation that two arcs are gone here and there mutually will cause control and protective switching device internal explosion.
The utility model arranges location division (3) on pedestal (1) and upper cover (2), and described location division (3) comprise bar shaped location notch (30), locating convex block (33), location notch (31) and locating piece (32).First, by locating convex block (33) and bar shaped location notch (30), arc-extinguish chamber (6) is fixed, when installing arc-extinguish chamber (6), the lead foot of arc extinguishing grid pieces (60) all embeds in bar shaped location notch (30), groove on arc-extinguish chamber (6) is buckled in above locating convex block (33), therefore arc-extinguish chamber (6) has good stationarity, secondly, by location notch (31), fixing fagging is fixed, when mounted the part in the middle of fixing fagging is stuck in location notch (31), its position is made to keep stable, when contact chip is connected and fixed on fixing fagging on due to it by spring when vibrating, therefore fix fagging and ensure that brace stability operationally, and by fixed block, brace is fixed, the kink of fixed block is stuck on fixed block when mounted, and the striking pin (8) of fixed block contacts at arc extinguishing grid pieces (60), two ends are located, therefore when contact chip operationally, constantly can collide with brace, because brace is fixed in shell by fixed block and arc extinguishing grid pieces (60), therefore it can not be caused in collision process unsceptered, this guarantees brace stability at work.
The utility model is provided with larger arc control device, compared with the arc control device in the main circuit of prior art, arc control device of the present utility model have larger space, extinguishing arc needs space that electric arc is dissociated, therefore arc control device of the present utility model have better extinguishing arc effect, compared to the arc-extinguish chamber (6) of 9 grid of prior art, the arc-extinguish chamber (6) of 13 grid taked by arc-extinguish chamber of the present utility model (6), when contact separates, the electric arc produced is pushed in one group of metal grid and is divided into several sections under electrodynamic effect, every a slice of metal grid insulated from each other is all equivalent to an electrode, therefore many anode and cathode pressure drops are just had.Concerning alternating current arc, nearly negative electrode place, just there will be the dielectric strength of a 150V ~ 250V when electric arc zero passage, and make electric arc cannot continue maintain and extinguish, therefore the more arc quenching effects of grid are better.
The utility model arranges striking pin (8) on contact chip, conflict on arc-extinguish chamber (6) in described striking pin (8) one end, more particularly, conflict on the arc extinguishing grid pieces (60) of arc-extinguish chamber (6) in striking pin (8) one end, on the one hand fixing effect is served to arc-extinguish chamber (6), can introduce in arc-extinguish chamber (6) at electric arc on the other hand.When the fixed contact on brace contacts with the moving contact on contact bridge or is separated, all electric arc will be produced, owing to brace being provided with striking pin (8), therefore electric arc can be brought in arc-extinguish chamber (6) and carry out arc extinguishing, and therefore the arc quenching effect of main circuit of the present utility model is strengthened.
Pedestal of the present utility model (1) and upper cover (2) are provided with the larger entrance hole of opening and wire hole (7), entrance hole in conventional art and wire hole (7) large not, also be not reflected when adopting 16A wire, if but adopt the wire of 45A, just have the outside that part wire is exposed at main circuit shell, such setting does not meet safety standard, larger entrance hole and wire hole (7) are therefore provided, the wire being expanded to adaptive 45A electric current of inlet wire and outlet can be made, so just the power of complete machine is improved.
The utility model is also provided with short-circuit protection characteristics test port on pedestal (1), the short-circuit protection characteristics of customization is surveyed device test the parts in short-circuit protection characteristics test port, when not propping up the sheet metal on short-circuit protection characteristic test mouth (5), when inlet wire and outlet being connected, complete machine would not trip, only when propping up the sheet metal on short-circuit protection characteristic test mouth (5), if when inlet wire and outlet connect, complete machine will trip, that is, in actual application, if be provided with short-circuit protection characteristics test port, make product more convenient when detection, and it is more reliable, the product detected shows more stable in real work.
To sum up state institute; by arranging securing member on main circuit shell; make main circuit shell have more fixed effect, by pedestal and on cover location division be set, make internal components have more fixed effect; by arranging larger arc-extinguish chamber; making main circuit have more extinguishing arc effect, by arranging larger entrance hole and wire hole, the complete machine power of complete machine can be promoted; by arranging short-circuit protection characteristic test mouth, make complete machine more reliable in practical work process.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (8)
1. the main circuit of a control and protective switching device, comprise shell, arc-extinguish chamber, brace, contact bridge, fixing fagging, described shell comprises pedestal and upper cover, described arc-extinguish chamber is arranged in the arc control device of shell, described brace, contact bridge, fixing fagging is all arranged in shell, described shell is also provided with wire hole, it is characterized in that: described pedestal and upper cover are connected and fixed by securing member, be provided with in described shell for being fixedly connected with sheet, the location division of fixing fagging and arc-extinguish chamber, described shell is provided with short-circuit protection characteristic test mouth, described brace is provided with striking pin on one end of arc-extinguish chamber, described striking pin is arranged in arc-extinguish chamber.
2. the main circuit of control and protective switching device according to claim 1, is characterized in that: described pedestal is connected by screw thread with upper cover.
3. the main circuit of control and protective switching device according to claim 1, is characterized in that: described fixed part comprises bar shaped holddown groove, locating convex block, location notch and locating piece.
4. the main circuit of control and protective switching device according to claim 3; it is characterized in that: described bar shaped location notch and locating convex block are arranged in arc control device; described arc extinguishing grid pieces is arranged in bar shaped location notch, and the concave part of described arc-extinguish chamber is set on locating convex block.
5. the main circuit of control and protective switching device according to claim 3, is characterized in that: described location notch is arranged on shell, and described fixing fagging is embedded in location notch, and the two ends of described fixing fagging contact at arc-extinguish chamber.
6. the main circuit of control and protective switching device according to claim 3; it is characterized in that: described locating piece is arranged on shell; described brace is set on locating piece; fixed contact on described brace contacts at the moving contact on contact bridge, and the striking pin on described brace is conflicted on the arc extinguishing grid pieces of arc-extinguish chamber.
7. the main circuit of control and protective switching device according to claim 1, is characterized in that: the arc grid of described arc-extinguish chamber is 13.
8. the main circuit of control and protective switching device according to claim 1, is characterized in that: the pore size of described wire hole is applicable to the wire of 45A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420607546.9U CN204155867U (en) | 2014-10-21 | 2014-10-21 | A kind of main circuit of control and protective switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420607546.9U CN204155867U (en) | 2014-10-21 | 2014-10-21 | A kind of main circuit of control and protective switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204155867U true CN204155867U (en) | 2015-02-11 |
Family
ID=52513964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420607546.9U Expired - Fee Related CN204155867U (en) | 2014-10-21 | 2014-10-21 | A kind of main circuit of control and protective switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204155867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164724A (en) * | 2019-05-27 | 2019-08-23 | 浙江正泰电器股份有限公司 | Automatic transfer switching electric appliance |
-
2014
- 2014-10-21 CN CN201420607546.9U patent/CN204155867U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164724A (en) * | 2019-05-27 | 2019-08-23 | 浙江正泰电器股份有限公司 | Automatic transfer switching electric appliance |
| CN110164724B (en) * | 2019-05-27 | 2024-02-23 | 浙江正泰电器股份有限公司 | Automatic change-over switch electric appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20171021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |