CN208173431U - A kind of conducting heavy current structure - Google Patents
A kind of conducting heavy current structure Download PDFInfo
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- CN208173431U CN208173431U CN201820638269.6U CN201820638269U CN208173431U CN 208173431 U CN208173431 U CN 208173431U CN 201820638269 U CN201820638269 U CN 201820638269U CN 208173431 U CN208173431 U CN 208173431U
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- conductive rod
- vacuum interrupter
- busbar
- screw
- support plate
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Abstract
The utility model discloses a kind of conducting heavy current structures, including ontology and shell；Shell includes support plate and two clamping plates；Ontology is set between two clamping plates, including insulated pull rod, contact pressure spring, vacuum interrupter and busbar, and the both ends of the surface of vacuum interrupter are respectively arranged with moving conductive rod and static conductive rod, and moving conductive rod, which is connected with, to be flexible coupling；Insulated pull rod, contact pressure spring and moving conductive rod are sequentially connected, and busbar fits in the endface of static conductive rod by lock piece；Lock piece includes profiled screw, screw and nut；The end face of static conductive rod bears against the top surface of busbar, and the bottom surface of busbar bears against the top surface of profiled screw, and the bottom of profiled screw passes through support plate, and is connected by nut；The end face of static conductive rod offers threaded hole, and screw is set in profile nut, and passes through busbar, and be threaded onto the threaded hole of static conductive rod.The utility model has the advantages that the high-current circuit suitable for switchgear and debugging is convenient.
Description
Technical field
The utility model relates to conducting heavy current structures a kind of in electrical equipment field more particularly to switchgear.
Background technique
Switchgear is in the power system to high voltage power distributing cabinet, generator, transformer, power circuit, breaker, low pressure
The general designation of the controller switching equipments such as switchgear, distribution board, switch-box and control cabinet.It is mainly used for electric system (including power plant, power transformation
Stand, the users such as electric line and industrial and mining enterprises) control and protection, both can need set a part of electric power according to operation of power networks
Standby or route investment or out of service, can also quickly cut faulty component from power grid in power equipment or line failure
It removes, to guarantee the normal operation and equipment of no failure part in power grid, the safety of operating maintenance personnel.Therefore, high-voltage switch gear
Equipment is very important equipment for power transmission and distribution, and safe and reliable operation has the safely, effectively operation of electric system very heavy
The meaning wanted.
Conductive structure inside switchgear is the device for turning circuit, has a kind of gas-insulated switch to set at present
Standby, conductive structure uses threaded conductive, and rated current≤630A circuit can only be connected, be difficult to meet demand of today
?.
Utility model content
For this reason, it may be necessary to provide a kind of conducting heavy current structure, with solve conductive structure conductive extensions in the prior art by
The problem of limit.
To achieve the above object, a kind of conducting heavy current structure, including ontology and shell are inventor provided；
The shell includes support plate and two clamping plates, and two clamping plates are arranged in parallel, and are connected by the support plate
It connects；
The ontology is set between two clamping plates, including insulated pull rod, contact pressure spring, vacuum interrupter and conduction
Row, the both ends of the surface of the vacuum interrupter are respectively arranged with moving conductive rod and static conductive rod, the moving conductive of the vacuum interrupter
It is connected with and is flexible coupling at the bar wall of bar；The moving conductive rod of the insulated pull rod, contact pressure spring and vacuum interrupter successively connects
It connects, the busbar is located between the static conductive rod and support plate of vacuum interrupter, and fits in vacuum by lock piece fixation
The endface of the static conductive rod of arc-chutes；
The lock piece includes profiled screw, screw and nut, the inner hollow of the profiled screw；The vacuum extinction
The end face of the static conductive rod of room bears against the top surface of busbar, and the bottom surface of the busbar bears against the top surface of profiled screw, institute
The bottom for stating profiled screw passes through support plate, and is fixedly connected by nut with support plate；The end face of the static conductive rod opens up
There is threaded hole, the screw is set in profile nut, and passes through busbar, and be threaded onto the threaded hole of static conductive rod.
It further, further include cooling fin, the cooling fin is set at the surface of busbar.
Further, the bottom surface of the insulated pull rod is provided with limiting slot, and the contact pressure spring is set to limiting slot
It is interior；The moving conductive rod of the vacuum interrupter is sticked in limiting slot, and bears against contact pressure spring.
Further, the side wall of the profiled screw bottom offers at least a pair of notches, and each pair of notch is cut including first
Mouth and the second notch, first notch and the setting of the second notch face.
Further, the side-walls of the vacuum interrupter are provided with positioning plate, and the positioning plate is slideably stuck in two
Between a clamping plate.
Further, there are two the nuts, two nuts are threaded onto outside profile nut, and are located at the two sides of support plate
Place.
Further, lock washer is arranged between the nut and support plate.
It is different from the prior art, conducting heavy current structure described in above-mentioned technical proposal includes ontology and shell；The shell
Body includes support plate and two clamping plates, and two clamping plates are arranged in parallel, and are connected by the support plate, for fixed support
Ontology.The ontology is set between two clamping plates, including insulated pull rod, contact pressure spring, vacuum interrupter and busbar,
The both ends of the surface of the vacuum interrupter are respectively arranged with moving conductive rod and static conductive rod, are connected at the bar wall of the moving conductive rod
It is flexible coupling；The moving conductive rod of the insulated pull rod, contact pressure spring and vacuum interrupter is sequentially connected, and the busbar is located at
Between the static conductive rod and support plate of vacuum interrupter, and pass through the fixed static conductive rod for fitting in vacuum interrupter of lock piece
Endface.Galvanic circle can be formed in this way, and since busbar is directly contacted with the end face of vacuum interrupter, ontology
High current can be carried.The lock piece includes profiled screw, screw and nut, the inner hollow of the profiled screw；It is described
The end face of the static conductive rod of vacuum interrupter bears against the top surface of busbar, and the bottom surface of the busbar bears against profiled screw
The bottom of top surface, the profiled screw passes through support plate, and is fixedly connected by nut with support plate；The end of the static conductive rod
Face offers threaded hole, and the screw is set in profile nut, and passes through busbar, and be threaded onto the threaded hole of static conductive rod
It is interior.Such setting realizes busbar and the end face of vacuum interrupter connects, and ontology is allow to carry high current；Meanwhile it using
Family, to change the height of ontology, can make ontology receive the behaviour in switchgear by adjusting the height where profiled screw
After the fixed journey system for making mechanism input, opening for vacuum interrupter can satisfy respective technology away from the decrement with contact pressure spring
It is required that therefore, it is such to be arranged so that the debugging process when assembling conductive structure is more convenient.
Detailed description of the invention
Fig. 1 is the side view for the conducting heavy current structure that an embodiment of the present invention is related to；
Fig. 2 is the cross-sectional view for the conducting heavy current structure that an embodiment of the present invention is related to；
Fig. 3 is the partial enlarged view for the conducting heavy current structure that an embodiment of the present invention is related to.
Description of symbols：
1, clamping plate；
2, insulated pull rod；
3, contact pressure spring；
4, it is flexible coupling；
5, positioning plate；
6, vacuum interrupter；
60, threaded hole；
7, busbar；
8, cooling fin；
9, profiled screw；
90, notch；
10, nut；
11, lock washer；
12, screw；
13, support plate.
Specific embodiment
Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality
It applies example and attached drawing is cooperated to be explained in detail.
Conductive structure is the component part in switchgear, is used for turning circuit, and current conductive structure is led using screw thread
Rated current≤630A circuit can only be connected in electricity, be difficult to meet demand of today.Therefore, referring to Fig. 1, this reality
A kind of conducting heavy current structure is provided with novel, in the particular embodiment, conducting heavy current structure includes ontology and shell,
The ontology is the working portion of this conducting heavy current structure, and the shell is for fixing and supporting ontology.
In the particular embodiment, the shell includes support plate 13 and two clamping plates 1, and two clamping plates 1 are set in parallel
It sets, and is connected by the support plate 13.The size that the spacing of two clamping plates 1 is greater than ontology is arranged, so that ontology can be set
Between two clamping plates.The support plate is arranged perpendicular to two clamping plates, after can guaranteeing that ontology is connect with support plate in this way
Stability.
In the particular embodiment, the ontology is set between two clamping plates, including insulated pull rod 2, contact pressure bullet
Spring 3, vacuum interrupter 6 and busbar 7, the moving conductive rod of the insulated pull rod 2, contact pressure spring 3 and vacuum interrupter 6 according to
Secondary connection.Wherein, it when the insulated pull rod exports fixed journey system to ontology for the operating mechanism of switchgear, is connect with operating mechanism
The component of touching, plays the role of electric insulation.The vacuum interrupter be this structure core component, the combined floodgate of this structure with point
Lock is to come the closure of the opposed contact of a pair in vacuum extinction room or separation under the control of the operating mechanism in switchgear
It realizes, a pair of opposed contact includes static contact and moving contact.The shell of vacuum interrupter is by inorganic insulations such as ceramics or glass
Material is made, cylindrical, and the both ends of the surface of the vacuum interrupter are respectively arranged with moving conductive rod and static conductive rod, the stationary contact
Head is fixedly connected with static conductive rod, and the moving contact is fixedly connected with moving conductive rod, and the moving contact can move axially so,
It is acted to drive moving contact to complete to close a floodgate with separating brake.
After operating mechanism inputs fixed journey system to this conductive structure, moving conductive rod will drive moving contact, so that moving contact
It is closed with static contact, realizes and close a floodgate, power supply conducting；Conversely, after operating mechanism exports fixed journey system to this conductive structure, it is dynamic to lead
Electric pole will drive moving contact, so that moving contact electrification is separated with static contact, vacuum arc be generated between moving contact and static contact, very
Empty electric arc is quickly spread around by contact, and electric arc is just off.Insulator is quickly become between moving contact and static contact,
Realize that separating brake, power supply disconnect.
Since the separating brake and combined floodgate of this conductive structure are by operating mechanism to output and input fixed journey system to realize, because
Either during separating brake still closes a floodgate, this vacuum interrupter all can be by certain thrust and elastic force, in order to prevent for this
Vacuum interrupter shifts when by thrust or elastic force.In a further embodiment, the side wall of the vacuum interrupter
Place is provided with positioning plate 5, and the positioning plate 5 is slideably stuck between two clamping plates.It is such to be arranged so that vacuum interrupter
, still can be mobile with opposing clamping plate when by thrust or elastic force, and skew will not occur, it can guarantee the stabilization of vacuum interrupter
Property.
In the particular embodiment, built-in can also set inside insulated pull rod 2 of the contact pressure spring 3 is drawn in insulation
3 outside of bar.When operating mechanism inputs fixed journey system, the contact pressure spring is axially compressed the contact pressure, at this time
Contact pressure spring store elastic potential energy；When operating mechanism exports fixed journey system, the contact pressure spring is axially sprung back, this
When contact pressure spring discharge elastic potential energy.Therefore, the contact pressure spring is used for after operating mechanism inputs fixed journey system,
Give vacuum interrupter certain pressure, so that the moving contact and static contact in vacuum extinction room completely attach to, to reduce vacuum
The resistance value when contact of arc-chutes；And when operating mechanism inputs fixed journey system, bullet when vacuum interrupter closes a floodgate is reduced
Jump initial velocity；And after operating mechanism exports fixed journey system, certain separating brake initial velocity is provided to vacuum interrupter.
In a preferred embodiment, the contact pressure spring is built in the inside of insulated pull rod, specifically, the insulation
The bottom surface of pull rod is provided with limiting slot, and the size of the limiting slot is adapted with the size of contact pressure spring, the contact pressure
Power spring is set in limiting slot；The moving conductive rod of the vacuum interrupter is sticked in limiting slot, and bears against contact pressure
Spring.Such setting is so that the structure of this conductive structure is more compact, while can prevent contact pressure spring from being pressed
Power hour offset can play the role of limit, and point of this conductive structure is influenced after can preventing contact pressure spring from deviating in this way
Lock and combined floodgate.
In the particular embodiment, it is connected at the bar wall of the moving conductive rod and is flexible coupling 4, it is described to be flexible coupling 4 using naked
Copper wire or tin plating copper litz wire (twisted wire), are made, mainly in Related products such as various High-Voltage Electrical Appliances, vaccum electric apparatus of cold compaction process
Interior a part as galvanic circle.In this conductive structure, it is described be flexible coupling to can be with the bar wall of moving conductive rod directly connect
Touching, is also possible to mediate contact.Specifically, it is described be flexible coupling be provided with clip, the direct contact is straight for the clip that is flexible coupling
It connects and is sandwiched at static conductive rod, unnecessary other resistance can not be generated in this way；The mediate contact is the bar wall of static conductive rod
Place's setting copper billet, the clip being flexible coupling are sandwiched at static conductive rod, thus are avoided that clip is too small and can not be sandwiched at static conductive rod.
In the particular embodiment, the busbar 7 is also a part of this conductive structure galvanic circle, in order to enable this
The galvanic circle of conductive structure can be by high current, and such as switchgear rated current >=630A, the busbar is located at vacuum
Between the static conductive rod and support plate of arc-chutes, and pass through the end face of the fixed static conductive rod for fitting in vacuum interrupter of lock piece
Place.Such to be arranged so that busbar is directly connect with the end face of vacuum interrupter, the area of contact considerably increases, can be with
High current is carried, to meet demand of today.
In the particular embodiment, the lock piece includes profiled screw 9, screw 12 and nut 10, and the nut 10 is
Play the role of locking profiled screw, the screw 12, which plays, is fixedly connected with vacuum interrupter 6, busbar 7 and profiled screw 9
Effect.The bottom of the profiled screw passes through support plate 13, and is fixedly connected by nut with support plate, the static conductive rod
End face offer threaded hole 60, the screw is set in profile nut.Wherein, the inner hollow of the profiled screw, tool
Body, the shape of the hollow structure of profiled screw is adapted with the shape of screw, as the hollow structure of T-type.Such setting
So that screw will not be from the other end of profiled screw after screw penetrates in the hollow structure of profiled screw from one end of profiled screw
It is pierced by.The ailhead of screw is movably stuck in hollow structure at this time, and the nail tail of screw protrudes from the other end of profiled screw
Outside, the screw protrude from the part of profiled screw other end length be greater than busbar thickness, it is such setting so that
Screw can pass through busbar, and be threaded onto the threaded hole 60 of static conductive rod, busbar can be fixed on vacuum interrupter
Static conductive rod endface, and the end face of the static conductive rod of the vacuum interrupter can bear against the top surface of busbar, described
The bottom surface of busbar can bear against the top surface of profiled screw, thus realize that the end face of busbar and static conductive rod connects, so that this
Conductive structure can carry high current.
In order to further fix profiled screw, in a further embodiment, there are two the nuts 10, two nuts
It is threaded onto outside profile nut, and is located at the two sides of support plate.Profiled screw can be made to be stably fixed to support in this way
At plate.
In a further embodiment, lock washer 11 is arranged between the nut and support plate.It can be enhanced in this way
The lock ability of nut, to prevent profiled screw from loosening.
Since the end face that this conductive structure realizes busbar and static conductive rod is directly connected to, this conductive structure can be with
High current is carried, meanwhile, after size of current to certain value, when such as larger than 1250A, certain temperature can be generated, in order to prevent
High temperature burns out busbar, in a further embodiment, can be greater than certain value, such as larger than 1250A in the electric current of galvanic circle
When, installation settings cooling fin 8 is discharged in conduction, the temperature at busbar can be reduced, in this way further to enhance this conduction
Row holds current-carrying ability.
It is realized under the combined floodgate of this conductive structure and the operation that separating brake is by the operating mechanism in switchgear, specifically
Ground, operating mechanism input fixed journey system by machine driving, to conductive structure, this fixed journey system needs the pressure equal to compression spring
Indention journey and vacuum interrupter open away from and.Since the fixed journey system of operating mechanism has been determining value in design, in order to
Meet the requirement of the electric property of switchgear, the compression travel and vacuum interrupter of compression spring are opened respective away from must satisfy
Technical requirements, in addition the compression travel of compression spring and vacuum interrupter are opened away from fine-tuning in certain range.
Therefore, in a further embodiment, the bottom of the profiled screw pass through support plate, and by nut with
Support plate is fixedly connected.The hole that support plate is passed through for profiled screw is band internal thread hole, and the outer wall of profiled screw is provided with
External screw thread is engaged between profiled screw and support plate by internal screw thread and external screw thread.Such setting is so that user is assembling this
When conductive structure, ontology can be made to connect to adjust height locating for profiled screw relative support plate by turn profiled screw
After the fixed journey system inputted by the operating mechanism in switchgear, vacuum interrupter is opened away from the decrement with contact pressure spring
It can satisfy respective technical requirements, compared to previous conductive structure, debugging process of this conductive structure in assembly is more
It is convenient.
In order to facilitate user's turn profiled screw, in a further embodiment, the side wall of the profiled screw bottom is opened
Equipped at least a pair of notches 90, each pair of notch includes the first notch and the second notch, first notch and the second notch face
Setting.When needing to debug this conductive structure, inserts in thickness plate-shaped body compatible with kerf width is horizontal simultaneously first and cut
In mouth and the second notch, then plate-shaped body rotation is controlled, to drive profiled screw to rotate, profiled screw is opposite to be supported to change
Height locating for plate can quickly and conveniently be completed to debug.
It should be noted that being not intended to limit although the various embodiments described above have been described herein
The scope of patent protection of the utility model.Therefore, based on the innovative idea of the utility model, embodiment described herein is carried out
Change and modification or equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, directly
Or above technical scheme is used in other related technical areas indirectly, it is included in the patent protection model of the utility model
Within enclosing.
Claims (7)
1. a kind of conducting heavy current structure, which is characterized in that including ontology and shell；
The shell includes support plate and two clamping plates, and two clamping plates are arranged in parallel, and are connected by the support plate；
The ontology is set between two clamping plates, including insulated pull rod, contact pressure spring, vacuum interrupter and busbar,
The both ends of the surface of the vacuum interrupter are respectively arranged with moving conductive rod and static conductive rod, the moving conductive rod of the vacuum interrupter
Bar wall, which is connected with, to be flexible coupling；The moving conductive rod of the insulated pull rod, contact pressure spring and vacuum interrupter is sequentially connected, described
Busbar is located between the static conductive rod and support plate of vacuum interrupter, and fits in vacuum interrupter by lock piece fixation
The endface of static conductive rod；
The lock piece includes profiled screw, screw and nut, the inner hollow of the profiled screw；The vacuum interrupter
The end face of static conductive rod bears against the top surface of busbar, and the bottom surface of the busbar bears against the top surface of profiled screw, described different
The bottom of type screw rod passes through support plate, and is fixedly connected by nut with support plate；The static conductive rod of the vacuum interrupter
End face offers threaded hole, and the screw is set in profile nut, and passes through busbar, and be threaded onto the screw thread of static conductive rod
In hole.
2. conducting heavy current structure according to claim 1, which is characterized in that further include cooling fin, the cooling fin is set
It is placed at the surface of busbar.
3. conducting heavy current structure according to claim 1, which is characterized in that the bottom surface setting of the insulated pull rod is limited
Position slot, the contact pressure spring are set in limiting slot；The moving conductive rod of the vacuum interrupter is sticked in limiting slot, and
Bear against contact pressure spring.
4. conducting heavy current structure according to claim 1, which is characterized in that the side wall of the profiled screw bottom opens up
There is at least a pair of notches, each pair of notch includes the first notch and the second notch, and first notch and the second notch face are arranged.
5. conducting heavy current structure according to claim 1, which is characterized in that the side-walls of the vacuum interrupter are arranged
There is positioning plate, the positioning plate is slideably stuck between two clamping plates.
6. conducting heavy current structure according to claim 1, which is characterized in that there are two the nuts, two nut rotations
In outside profile nut, and it is located at the two sides of support plate.
7. conducting heavy current structure according to claim 1, which is characterized in that be arranged between the nut and support plate
Lock washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820638269.6U CN208173431U (en) | 2018-04-28 | 2018-04-28 | A kind of conducting heavy current structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820638269.6U CN208173431U (en) | 2018-04-28 | 2018-04-28 | A kind of conducting heavy current structure |
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| Publication Number | Publication Date |
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| CN208173431U true CN208173431U (en) | 2018-11-30 |
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ID=64368178
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| CN201820638269.6U Active CN208173431U (en) | 2018-04-28 | 2018-04-28 | A kind of conducting heavy current structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597915A (en) * | 2018-04-28 | 2018-09-28 | 福建中能电气有限公司 | A kind of conducting heavy current structure |
-
2018
- 2018-04-28 CN CN201820638269.6U patent/CN208173431U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597915A (en) * | 2018-04-28 | 2018-09-28 | 福建中能电气有限公司 | A kind of conducting heavy current structure |
| CN108597915B (en) * | 2018-04-28 | 2024-08-09 | 福建中能电气有限公司 | Heavy current conductive structure |
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