CN203883550U - PC-class dual-power-supply change-over switch - Google Patents
PC-class dual-power-supply change-over switch Download PDFInfo
- Publication number
- CN203883550U CN203883550U CN201420286827.9U CN201420286827U CN203883550U CN 203883550 U CN203883550 U CN 203883550U CN 201420286827 U CN201420286827 U CN 201420286827U CN 203883550 U CN203883550 U CN 203883550U
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- Prior art keywords
- binding post
- housing
- power transfer
- transfer switch
- dual
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Abstract
The utility model discloses a PC-class dual-power-supply change-over switch including a housing, a circuit assembly, an operating mechanism and a wiring system. The circuit assembly is disposed inside the housing. The operating mechanism is disposed outside the housing. The wiring system includes a plurality of wiring terminals which are mounted on the housing. Each wiring terminal further is provided with a temperature control switch. Each temperature switch includes a support, a bimetallic strip, a push rod and contact switches. The contact switches includes a fixed contact and a moving contact. Each temperature control switch is connected with a corresponding wiring terminal and the circuit assembly. A conductive sheet is pressed against one bimetallic strip. Each pull rod is disposed between one bimetallic strip and a moving contact sheet. The PC-class dual-power-supply change-over circuit can automatically protect a circuit.
Description
Technical field
The utility model relates to a kind of duplicate supply diverter tool, and more particularly, it relates to a kind of dual-power transfer switch.
Background technology
Dual-power transfer switch refers to: a kind of by microprocessor control, start with generator power supply the device switching for network system net electricity and net electricity or net electricity, can make the power supply of power supply continuous source, in the time of conventional electric catastrophic failure or power failure, pass through double power supply converting switch, automatically put on stand-by power supply, (under little load, stand-by power supply also can be by generator powered, ) equipment still can normally be moved, modal is elevator, fire-fighting, in monitoring, duplicate supply is mainly divided into PC level duplicate supply (integral type) and CB level duplicate supply (dual-breaker formula), PC level duplicate supply: can connect, carrying, but be not used in the duplicate supply of disjunction short circuit current, if duplicate supply selects the on-load switch without overcurrent trip to belong to PC level automatic change-over as actuator, but it does not possess defencive function, there is serious potential safety hazard.
At present, (Chinese patent that application number is CN201320359112.7 discloses a kind of PC level dual-power transfer switch) on market, it comprises change over switch body and protective frame, although this dual-power transfer switch good looking appearance, but because its binding post place and conductor connecting structure still do not change, when UNICOM for subsequent use or conventional power supply because instantaneous large-current is changed, UNICOM, its binding post goes out exposed circuit and easily occurs electric arc, add that long-time its binding post place that uses of duplicate supply switching is easily oxidized, corrosion, easily cause double power supply converting switch to occur the bonding of getting an electric shock, the situations such as wire intensification heating, in the time that situation is serious, likely produce a large amount of sparks because conductor temperature is too high and cause fire.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of PC level dual-power transfer switch that can defencive function.
For achieving the above object, the utility model provides following technical scheme: a kind of PC level dual-power transfer switch, comprise housing, circuit unit, operating-controlling mechanism and wiring system, described circuit unit is arranged on enclosure interior, described operating-controlling mechanism is arranged on outside, described wiring system includes several binding posts, described binding post comprises bolt and conducting strip, on described housing, be provided with the bolt hole of construction bolt, wherein, described binding post also includes temperature detect switch (TDS), described temperature detect switch (TDS) comprises support, bimetal leaf, push rod and contact switch, described contact switch comprises fixed contact and moving contact, described moving contact is made up of elastic conduction metal, described temperature detect switch (TDS) respectively with binding post, circuit unit forms electrical connection, described conducting strip and bimetal leaf are conflicted, described push rod is arranged between bimetal leaf and movable contact spring.
By adopting technique scheme, on described binding post, be provided with temperature detect switch (TDS), static contact and movable contact spring closure under normal circumstances, described circuit UNICOM, on described PC level dual-power transfer switch, pass through short circuit current or binding post because of aging, when heating up appears in the reasons such as corrosion, the bimetal leaf that described and conducting strip are conflicted is heated to heat up to produce and is out of shape and promotes described push rod, thereby described push rod drives movable contact spring, motion separates with static contact, described temperature detect switch (TDS) disconnects described PC level twin-power switch circuit, treat that temperature declines, bimetal leaf restores to the original state rapidly, described movable contact spring is made up of elastic conduction metal, described movable contact spring makes described temperature detect switch (TDS) closure losing after bimetal leaf pressure to reset, reach at described temperature detect switch (TDS) and occur opening circuit or can automatic shutoff circuit when other reasons excess Temperature and be connected to another power supply because of fault, and after reducing, temperature reconnects circuit, by adopting bimetal plate temperature controling switch, its working temperature is stable, reliable in action is clear-cut, not arcing, shelf life is long, dependable performance, be not subject to radio interference, precise structure, multiple functional.
The utility model is further set to: described binding post includes bolt, offers corresponding screwed hole on described housing.
By adopting technique scheme, described binding post is screwed external wire.
The utility model is further set to: the described movable contact spring dorsad one side of push rod is provided with elastic component.
By adopting technique scheme, elastic component can increase the restoring force of movable contact spring in the time that movable contact spring is pushed by push rod, ensures can to switch on power the very first time after bimetal leaf cooling is replied, and extends the useful life of described temperature detect switch (TDS).
The utility model is further set to: the protective cover that is provided with shape, position and binding post adaptation on described housing.
By adopting technique scheme; described protective cover can protect binding post not polluted by the burn into of water, dust; extend the shelf life of binding post; connect, disconnect or open circuit may there is spark time because of electric current at binding post suddenly; play preventing that spark from splashing and cause the effect of fire, make described PC level dual-power transfer switch more may, safety.
The utility model is further set to: described protective cover is set to buckle with housing and is connected.
By adopting technique scheme, in the time that wiring, maintenance circuit are installed, can take off easily described protective cover, ensure that described protective cover can not hinder operating personnel's operation.
The utility model is further set to: on described protective cover, be provided with separate layer, described separate layer is arranged between every two binding posts.
By adopting technique scheme; separate layer on described protective cover can be isolated described binding post; make to be independent of each other between each binding post; in the time that contingency occurs that spark appears in certain binding post; thereby guarantee spark can not be splashed on adjacent binding post and further expand danger coefficient, described PC level twin-power switch coefficient of safety is increased.
The utility model is further set to: on described protective cover, be provided with the boss with bolt hole adaptation.
By adopting technique scheme, described boss can stud bolt hole, avoids that bolt hole is exposed causes described bolt by air corrosion, oxidation in air.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model PC level dual-power transfer switch embodiment;
Fig. 2 is the structural representation of temperature detect switch (TDS) in the utility model embodiment.
Reference numeral: 1. housing; 11. bolts hole; 12. draw-in grooves; 2. operating-controlling mechanism; 3. binding post; 31. bolts; 32. conducting strips; 33. temperature detect switch (TDS)s; 331. bimetal leaf; 332. push rod; 333. static contact; 334. movable contact spring; 335. elastic component; 336. support; 4. protective cover; 41. separate layers; 42. buckles; 43. boss.
Embodiment
Referring to figs. 1 through Fig. 2, the utility model embodiment is described further.
A kind of PC level dual-power transfer switch, comprise housing 1, circuit unit, operating-controlling mechanism 2 and wiring system, described circuit unit is arranged on housing 1 inside and described circuit unit includes tripping mechanism, described operating-controlling mechanism 2 is arranged on housing 1 outside, described operating-controlling mechanism 2 is by connecting rod and tripping mechanism UNICOM, by pulling operating-controlling mechanism 2 and by described link transmission, described tripping mechanism being opened, closed to reach the effect of point deenergizing, on described wiring system, include several binding posts 3, described binding post 3 comprises bolt 31, conducting strip 32, on described housing 1, be provided with bolt 31 holes 11 of construction bolt 31, described bolt 31 holes 11 are arranged on housing 1 one sides, and described conducting strip 32 is arranged on the opposite side of the housing vertical with described hole 1, described bolt 31 surfaces are lower than bolt 31 holes 11, described binding post 3 is also provided with temperature detect switch (TDS) 33, above-mentioned temperature detect switch (TDS) 33 is exactly the switch that decides break-make according to the temperature of wanted control object, be divided into according to its operating principle difference: dual metal type, pressure type and temperature-sensitive iron oxysome formula, what the temperature detect switch (TDS) 33 in the present embodiment adopted is dual metal type, described temperature detect switch (TDS) 33 comprises support 336, bimetal leaf 331, push rod 332 and contact switch, described contact switch comprises fixed contact and moving contact, described temperature detect switch (TDS) 33 respectively with binding post 3, circuit unit forms electrical connection, described conducting strip 32 is conflicted with bimetal leaf 331, described push rod 332 is arranged between bimetal leaf 331 and movable contact spring 332, about bimetal leaf 331 temperature detect switch (TDS) 33 principles: various metals have the characteristic of expanding with heat and contract with cold, and different metal is along with the coefficient of expansion of variations in temperature is different, bimetallic temperature detect switch (TDS) 33 is exactly around this principle work, bimetal leaf 331 is made up of " high manganese " on upper strata and " invar " of lower floor, the former coefficient of expansion is tens times of the latter, be called " active layers " and " passive layer ", at assembly temperature, static contact 333 is connected with movable contact spring 332, whole circuit is in on-state, when temperature raises, it is more than passive layer that active layers expands, bimetal leaf 331 is bent downwardly, in temperature, height is to a certain extent time, circuit disconnects, while being cooled to a certain degree, bimetal leaf 331 restores, circuit is connected, according to being provided with temperature detect switch (TDS) 33 on above-mentioned principle the utility model middle connecting terminal 3, static contact 333 and movable contact spring 332 closures under normal circumstances, described circuit UNICOM, on described PC level dual-power transfer switch by current interruption or binding post 3 because of aging, when heating up appears in the reasons such as corrosion, the bimetal leaf 331 that described and conducting strip 32 are conflicted is heated to heat up to produce and is out of shape and promotes described push rod 332, described push rod 332 drives movable contact spring 332 to move always to separate with static contact 333, described temperature detect switch (TDS) 33 disconnects described PC level twin-power switch circuit, treat that temperature declines, bimetal leaf 331 restores to the original state rapidly, described movable contact spring 332 is made up of elastic conduction metal, described movable contact spring 332 makes described temperature detect switch (TDS) 33 closures losing after bimetal leaf 331 pressure to reset, reach at described temperature detect switch (TDS) 33 and occur opening circuit or can automatic shutoff circuit when other reasons excess Temperature and be connected to another power supply because of fault, and after reducing, temperature reconnects circuit, by adopting bimetal leaf 331 temperature detect switch (TDS)s 33, its working temperature is stable, reliable in action is clear-cut, not arcing, shelf life is long, dependable performance, be not subject to radio interference, precise structure, multiple functional.
Described movable contact spring 332 is provided with elastic component 335 towards the another side of push rod 332, elastic component 335 can increase the restoring force of movable contact spring 332 in the time that movable contact spring 332 is pushed by push rod 332, ensure can to switch on power the very first time after bimetal leaf 331 coolings are replied, extend the useful life of described temperature detect switch (TDS) 33.
On described housing 1, be provided with the protective cover 4 of shape, position and binding post 3 adaptations; described protective cover 4 can protect binding post 3 not polluted by the burn into of water, dust; extend the shelf life of binding post 3; connect, disconnect or open circuit may there is spark time because of electric current at binding post 3 suddenly; play preventing that spark from splashing and cause the effect of fire, make described PC level dual-power transfer switch more may, safety.
Described protective cover 4 is set to buckle 42 with housing 1 and is connected; in the present embodiment, buckle 42 is arranged in described protective cover 4, on described housing 1, is provided with draw-in groove 12, in the time that wiring, maintenance circuit are installed; can take off easily described protective cover, ensure that described protective cover can not hinder operating personnel's operation.
On described protective cover 4, be provided with separate layer 41; described separate layer 41 is arranged between every two binding posts 3; separate layer 41 on described protective cover 4 can be isolated described binding post 3; make to be independent of each other between each binding post 3; in the time that contingency occurs that spark appears in certain binding post 3; thereby guarantee spark can not be splashed on adjacent binding post 3 and further expand danger coefficient, described PC level twin-power switch coefficient of safety is increased.
On described protective cover 4, be provided with and the boss 43 of bolt 31 hole 11 adaptations, described boss 43 can stud bolt 31 holes 11, avoid that bolt 31 holes 11 are exposed causes described bolt 31 by air corrosion, oxidation in air.
Claims (7)
1. a PC level dual-power transfer switch, comprise housing, circuit unit, operating-controlling mechanism and wiring system, described circuit unit is arranged on enclosure interior, described operating-controlling mechanism is arranged on outside, described wiring system includes several binding posts, described binding post comprises bolt, conducting strip, described binding post is arranged on housing, it is characterized in that: described binding post also includes temperature detect switch (TDS), described temperature detect switch (TDS) comprises support, bimetal leaf, push rod and contact switch, described contact switch comprises fixed contact and moving contact, described temperature detect switch (TDS) respectively with binding post, circuit unit connects, described conducting strip and bimetal leaf are conflicted, described push rod is arranged between bimetal leaf and movable contact spring.
2. dual-power transfer switch according to claim 1, is characterized in that: described binding post includes bolt, offers corresponding screwed hole on described housing.
3. PC level dual-power transfer switch according to claim 1 and 2, is characterized in that: the described movable contact spring dorsad one side of push rod is provided with elastic component.
4. PC level dual-power transfer switch according to claim 3, is characterized in that: on described housing, be provided with the protective cover with binding post adaptation.
5. PC level dual-power transfer switch according to claim 4, is characterized in that: described protective cover is set to buckle with housing and is connected.
6. PC level dual-power transfer switch according to claim 5, is characterized in that: on described protective cover, be provided with separate layer, described separate layer is arranged between every two binding posts.
7. PC level dual-power transfer switch according to claim 6, is characterized in that: on described protective cover, be provided with the boss with bolt hole adaptation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286827.9U CN203883550U (en) | 2014-05-29 | 2014-05-29 | PC-class dual-power-supply change-over switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286827.9U CN203883550U (en) | 2014-05-29 | 2014-05-29 | PC-class dual-power-supply change-over switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203883550U true CN203883550U (en) | 2014-10-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420286827.9U Expired - Fee Related CN203883550U (en) | 2014-05-29 | 2014-05-29 | PC-class dual-power-supply change-over switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203883550U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107145119A (en) * | 2017-04-20 | 2017-09-08 | 海格科技股份有限公司 | electronic switch with temperature control |
| CN108206123A (en) * | 2017-12-30 | 2018-06-26 | 安徽鑫龙低压电器有限公司 | A kind of automatic transfer switching electric appliance |
| CN109140103A (en) * | 2018-09-05 | 2019-01-04 | 浙江伟星新型建材股份有限公司 | A kind of Fuse Type electric melting pipe fittings |
-
2014
- 2014-05-29 CN CN201420286827.9U patent/CN203883550U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107145119A (en) * | 2017-04-20 | 2017-09-08 | 海格科技股份有限公司 | electronic switch with temperature control |
| CN108206123A (en) * | 2017-12-30 | 2018-06-26 | 安徽鑫龙低压电器有限公司 | A kind of automatic transfer switching electric appliance |
| CN109140103A (en) * | 2018-09-05 | 2019-01-04 | 浙江伟星新型建材股份有限公司 | A kind of Fuse Type electric melting pipe fittings |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20160529 |