CN202178207U - All-insulation power switch - Google Patents
All-insulation power switch Download PDFInfo
- Publication number
- CN202178207U CN202178207U CN2011203021251U CN201120302125U CN202178207U CN 202178207 U CN202178207 U CN 202178207U CN 2011203021251 U CN2011203021251 U CN 2011203021251U CN 201120302125 U CN201120302125 U CN 201120302125U CN 202178207 U CN202178207 U CN 202178207U
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- cable
- insulation
- power switch
- dynamic
- insulation power
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Abstract
The utility model relates to an all-insulation power switch which comprises an insulating housing and a vacuum arc extinguishing chamber positioned in the insulating housing, wherein a cable incoming wire socket and a cable outgoing wire socket, which are respectively electrically connected with incoming conductive rods and outgoing conductive rods in moving contact components and fixed contact components of the vacuum arc extinguishing chamber, are arranged outside the insulating housing, and the all-insulation power switch is characterized in that the vacuum arc extinguishing chamber comprises three pairs of moving and fixed contact components which are distributed in a same vacuum cavity at intervals and a driving part which can simultaneously drive each pair of moving and fixed contacts to be in contact or be separated; and the cable incoming wire socket and the cable outgoing wire socket are respectively positioned at the two ends of the insulating housing and in plug-in connection with cable plugs. Compared with the prior art, the all-insulation power switch is compact in overall structure, small in volume and particularly suitable for being applied in a miniaturized intelligent power grid; in addition, when the all-insulation power switch is mounted, cables which are respectively connected into the cable plugs at the two corresponding ends can be linearly arranged, thereby being more conductive to burying an all-insulation load switch underground for use.
Description
Technical field
The utility model relates to a kind of power switch, specifically is meant a kind of all insulation vacuum circuit-breaker or all insulation on-load switch.
Background technology
In the high-voltage fence structure; Be connected the sensitiveness electric loading of electric power system; Very easily receive influence from electric power system disturbance in short-term; Therefore need to adopt protectiveness equipment to protect, vacuum circuit-breaker is a kind of protectiveness equipment commonly used, through in the short time vacuum circuit-breaker being closed a floodgate or separating brake is realized the effective protection to electric power system.People have designed various dissimilar vacuum circuit-breakers at present; Like application number is the disclosed a kind of primary cut-out of Chinese invention patent application " novel high-pressure vacuum circuit-breaker " of 201010540248.9 (publication No. is CN102054621A), and it is provided with the threephase switch pole in housing, and an end of every phase switch pole is the long cable section of ingoing line plug; In the middle of the switch pole, connecing a sleeve pipe in addition is the cable outlet plug; The distribution that takes the shape of the letter U of long cable section of ingoing line plug and cable outlet plug, switch pole inside is sealing state, in every phase pole insulated tension pole is set; Insulated tension pole is protruding to join with transmission device; Operating mechanism actuating transmission device by in the circuit breaker makes the insulated tension pole of three-phase pole do axial motion, realizes the combined floodgate and the separating brake of circuit breaker.The shell integral sealing of this vacuum circuit-breaker, the internal switch pole is provided with screen, and any position can touch, and uses saferly, both can be installed on the outdoor post, can also be installed on underground use; In addition, this vacuum circuit-breaker can also realize that three link and operate comparatively simple.But; This vacuum circuit-breaker is because three-phase is assembled in the housing independently of one another; And the operating mechanism and the transmission structures that are positioned at housing are comparatively complicated; The structure that causes whole vacuum circuit-breaker thus compactness and volume inadequately is relatively large, makes it not be fit to be applied in the intelligent grid of miniaturization very much.Therefore, remain this novel high-pressure vacuum circuit-breaker is carried out certain improvement.
The utility model content
The utility model technical problem to be solved is to above-mentioned prior art present situation, a kind of compact conformation is provided, volume is less and can be used for all insulation power switch in the buried circuit.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: this all insulation power switch; Comprise insulation crust and the vacuum interrupter that is positioned at insulation crust; Described insulation crust is provided with respectively the long cable section of ingoing line socket and the cable outlet socket that are electrically connected mutually into and out of conducting rod in the dynamic and static contact assembly with above-mentioned vacuum interrupter outward, it is characterized in that: described vacuum interrupter comprise three pairs spaced apart respectively in same vacuum chamber dynamic and static contact assembly and can drive the actuator that the moving contact in each said dynamic and static contact assembly contacts or separates with fixed contact simultaneously; Described long cable section of ingoing line socket and cable outlet socket lay respectively at the two ends of said insulation crust, and on said long cable section of ingoing line socket and cable outlet socket, all are plugged with cable plug.
For cable plug can be plugged on the cable socket securely; Has cannelure respectively on the insertion end outer surface of said long cable section of ingoing line socket, cable outlet socket; Accordingly; On described cable plug, have the jack that matches with this insertion end, and on the root inwall of this jack, have the annular bead that matches with said cannelure.After annular bead snapped in cannelure, cable plug just can be plugged on the cable socket securely.
More reasonable for the dynamic and static contact assembly layout that makes vacuum interrupter, three pairs of described dynamic and static contact assemblies axially are uniformly distributed with in described vacuum chamber with one heart.After adopting such distribution mode; Three pairs of dynamic and static contacts creepage distance each other is the most even; Make vacuum interrupter under the less prerequisite of diameter, also can satisfy the requirement of creepage distance, and then dwindle the volume of vacuum interrupter and all insulation on-load switch, reduce manufacturing cost.
In order to improve the fail safe of track walker when carrying out wireline inspection, charged indicating device is installed on the described cable plug.This charged indicating device can adopt LED type potential indicator, and whether this LED potential indicator is installed on the instrument connection of cable plug (elbow head, T type cable joint and T-II type cable joint), utilize the LED lamp to glimmer and judge whether cable is charged.When circuit was charged, the display lamp of potential indicator glimmered continuously, reminded track walker's circuit charged; When circuit was not charged, the display lamp of potential indicator did not glimmer, and reminded track walker's circuit not charged, can carry out plant maintenance.
In order further to improve the insulation degree, the outer surface of described cable plug is coated with insulation screen.
Further; Pin in the said cable plug is threaded by connecting rod and cable crimp head and forms; And has flange at described connecting rod middle part; Said cable plug has a necking part in the through hole that said pin is installed, described flange and cable crimp head are resisted against the both sides of this necking part.Like this, the pin of cable plug also can be fixedly mounted in the through hole of cable plug, and external cable then can be fixed on the cable plug through the cable crimp head.
Preferred as above-mentioned arbitrary scheme; It is characterized in that: each links to each other with an end of moving conductive rod to the moving contact in the said dynamic and static contact assembly; The other end of said moving conductive rod links to each other with a wherein conducting rod into and out of conducting rod through soft electric conductor; Said each the fixed contact in the dynamic and static contact assembly is linked to each other with another conducting rod in conducting rod; Described actuator comprises axial centre place that is positioned at said vacuum chamber and the motion bar that is connected through the said moving conductive rod of each connecting rod and each, moves axially under the driving of the rotating shaft of this motion bar outside an outer end radially is exposed to said insulation crust.One rotating machinery or action bars can be installed in the outer end of this rotating shaft drive this rotating shaft rotation; The rotating shaft of radial arrangement is rotated back drive motion bar and is moved axially; Motion bar drives each moving conductive rod through each connecting rod and moves axially synchronously; Final synchronous contact or the separation that realizes each dynamic and static contact, visible three-phase conjoined operation is comparatively simple, and three alternately possess good synchronism.
Further improvement as such scheme; Described motion bar one end is plugged in first guide holder in the said vacuum chamber; The other end has a pivot pin; The inner of said action bars is equipped with rotary body, on this rotary body, has the radial slot that supplies said pivot pin to insert, and the outer end of said rotating shaft is exposed to outside the said insulation crust after passing second guide holder in the said vacuum chamber.After adopting such structure, rotating shaft is rotated with the rotation of driven rotary body, and rotary body rotation back drives motion bar and moves axially, and finally realizes the three-phase conjoined operation.Certainly, under the requirement of satisfying make-and-break time, described rotating shaft also can be adopted axial arranged screw structure, the nut that on this screw mandrel, has been threaded, and motion bar and nut fix, and through rotary screw, nut and motion bar are moved axially.Perhaps, an end of motion bar directly exposes to outside the insulation crust, under the driving of external force, directly moves vertically.Obviously, such scheme can realize the conjoined operation of three-phase equally.
Compared with prior art; What the utility model adopted is the vacuum interrupter of three-phase coenosarc; And this vacuum interrupter has the actuator that can drive the contact of three pairs of moving contacts in the dynamic and static contact assembly and fixed contact locking phase simultaneously or separate; Thereby its overall structure is comparatively compact, and volume is less and possess three-phase synchronism preferably simultaneously, and particularly suitable is applied in the intelligent grid of miniaturization; In addition; Because long cable section of ingoing line socket of the utility model and the two ends that the cable outlet socket lays respectively at insulation crust; And on long cable section of ingoing line socket and cable outlet socket, all be plugged with cable plug; Like this, can make the cable ability straight line that inserts respectively on two corresponding end cable plugs when mounted, more help this all insulation on-load switch is embedded in underground use.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment band broken section;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is for removing the structural representation behind the cable plug among Fig. 1;
Fig. 4 is the vertical view of Fig. 3;
Cable plug partly the structural representation of Fig. 5 for assembling among Fig. 1;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is the structural representation of vacuum interrupter among Fig. 1;
Fig. 8 is that the A of Fig. 7 is to the partial structurtes sketch map.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
To shown in Figure 8, this all insulation on-load switch comprises the vacuum interrupter 2 of a three-phase coenosarc like Fig. 1, and this vacuum interrupter 2 is positioned at insulation crust 1.The concrete structure of this vacuum interrupter 2 such as Fig. 7 and shown in Figure 8, upper cover plate 2d and the lower cover 2e at two ends are enclosed 20, three pairs of dynamic and static contact assemblies of vacuum chamber and in vacuum chamber 20, axially are uniformly distributed with one heart up and down by housing 2c, housing 2c for it.Each comprises into conducting rod 21, goes out conducting rod 22, moving contact 23, fixed contact 24, moving conductive rod 25 and soft electric conductor 26 dynamic and static contact assembly; Wherein advance conducting rod 21 and go out conducting rod 22 and expose respectively for static conductive rod and outer end and be fixed on the upper and lower cover plate of vacuum interrupter 2; The inner of advancing conducting rod 21 links to each other with an end of soft electric conductor 26; The other end of soft electric conductor 26 links to each other with an end of moving conductive rod 25; The other end of moving conductive rod 25 is connected with moving contact 23, and the inner that goes out conducting rod 22 is connected with fixed contact 24, and moving contact 23 is positioned at shielding cylinder 2f with fixed contact 24.Motion bar 28 is positioned at vacuum chamber 20 axial centre places, and the upper end of motion bar 28 is plugged among the first guide holder 2a, and the lower end of motion bar 28 has pivot pin 28a, and the sidepiece of motion bar 28 is connected with each moving conductive rod 25 respectively through each connecting rod 27.Rotating shaft 29 radially is installed in the vacuum chamber 20; The inner of rotating shaft 29 is equipped with rotary body 29b; On this rotary body 29b, have the radial slot 29a that supplies pivot pin 28a to insert, the outer end of rotating shaft 29 is exposed to outside the insulation crust 1 after radially passing the second guide holder 2b in the vacuum chamber 20.The course of work that this vacuum interrupter 2 three links is: rotating shaft 29 is rotated back drive motion bar 28 and is moved axially; Motion bar 28 drives each moving conductive rod 25 through each connecting rod 27 and moves axially synchronously, finally realizes each synchronous contact or separation to dynamic and static contact.In the present embodiment, in the outer end of rotating shaft 29 action bars 14 is installed, the rotation of rotating shaft 29 can realize that visible not only three-phase conjoined operation simply but also simultaneously possesses three-phase synchronism preferably through rotating operation bar 14.The vacuum interrupter 2 of above-mentioned this three-phase coenosarc adopts the coexist structure of a Room of three-phases; Have compact conformation, the less advantage of volume; Correspondingly, also make this all insulation power switch possess compact conformation, the less advantage of volume, make it be particularly suitable for being applied in the intelligent grid of miniaturization.
Be separately installed with three long cable section of ingoing line sockets 3 and three cable outlet sockets 4 at the two ends of insulation crust 1; Wherein long cable section of ingoing line socket 3 be positioned at vacuum interrupter 2 upper cover plate 2d the outside and keep being electrically connected with the outer end of respectively advancing conducting rod 21 respectively; Cable outlet socket 4 be positioned at vacuum interrupter 2 lower cover 2e the outside and keep being electrically connected with the outer end that respectively goes out conducting rod 22, all be plugged with cable plug 5 at long cable section of ingoing line socket 3 and cable outlet socket 4.Like this, can make the cable ability straight line that inserts respectively on the cable plug 5 of two corresponding end when mounted, help this all insulation on-load switch is embedded in underground use.In addition; For cable plug 5 can be plugged on long cable section of ingoing line socket 3 and the cable outlet socket 4 securely, has cannelure 6 respectively on the insertion end outer surface of long cable section of ingoing line socket 3, cable outlet socket 4, accordingly; On cable plug 5, have the jack 7 that matches with this insertion end; And on the root inwall of this jack 7, have the annular bead 8 that matches with cannelure 6, in the time of in annular bead 8 is entrapped in cannelure 6, cable plug 5 just is plugged on cable socket securely.In order to improve the fail safe of track walker when carrying out wireline inspection; Charged indicating device 9 is installed on cable plug 5; Present embodiment adopts LED type potential indicator as charged indicating device 9; Whether this LED potential indicator is installed on the instrument connection of cable plug 5, utilize the LED lamp to glimmer and judge whether cable is charged.When circuit was charged, the display lamp of LED potential indicator glimmered continuously, reminded track walker's circuit charged; When circuit was not charged, the display lamp of LED potential indicator did not glimmer, and reminded track walker's circuit not charged, can carry out plant maintenance.In order further to improve the insulation degree, the outer surface of cable plug 5 is coated with insulation screen 51.
Like Fig. 5 and shown in Figure 6; Pin in the cable plug 5 is threaded by connecting rod 10 and cable crimp head 11 and forms; Connecting rod 10 middle parts have flange 12; Cable plug 5 has a necking part 13 in the through hole that above-mentioned pin is installed, flange 12 and cable crimp head 11 are resisted against the both sides of this necking part 13.Like this, the pin of cable plug 5 can be not only convenient but also be fixedly mounted in its through hole, and external cable 15 then is fixed on the cable plug 5 through cable crimp head 11, and cable installs also very convenient.
Claims (8)
1. all insulation power switch; Comprise insulation crust (1) and be positioned at the vacuum interrupter (2) of insulation crust (1); Described insulation crust (1) is outer to be provided with respectively the long cable section of ingoing line socket (3) and the cable outlet socket (4) that are electrically connected mutually into and out of conducting rod (21,22) in the dynamic and static contact assembly with above-mentioned vacuum interrupter (2), it is characterized in that: described vacuum interrupter (2) comprise three pairs spaced apart respectively in same vacuum chamber (20) dynamic and static contact assembly and can drive the actuator that moving contact (23) and fixed contact (24) in each said dynamic and static contact assembly contact or separate simultaneously; Described long cable section of ingoing line socket (3) and cable outlet socket (4) lay respectively at the two ends of said insulation crust (1), and on said long cable section of ingoing line socket (3) and cable outlet socket (4), all are plugged with cable plug (5).
2. all insulation power switch according to claim 1; It is characterized in that: have cannelure (6) respectively on the insertion end outer surface of said long cable section of ingoing line socket (3), cable outlet socket (4); Accordingly; On described cable plug (5), have the jack (7) that matches with this insertion end, and on the root inwall of this jack (7), have the annular bead (8) that matches with said cannelure (6).
3. all insulation power switch according to claim 1 is characterized in that: three pairs of described dynamic and static contact assemblies axially are uniformly distributed with in described vacuum chamber (20) with one heart.
4. all insulation power switch according to claim 1 is characterized in that: charged indicating device (9) is installed on the described cable plug (5).
5. all insulation vacuum-load beginning according to claim 1, it is characterized in that: the outer surface of described cable plug (5) is coated with insulation screen (51).
6. all insulation power switch according to claim 1; It is characterized in that: the pin in the said cable plug (5) is threaded by connecting rod (10) and cable crimp head (11) and forms; And has flange (12) at described connecting rod (10) middle part; Said cable plug (5) has a necking part (13) in the through hole that said pin is installed, described flange (12) and cable crimp head (11) are resisted against the both sides of this necking part (13).
7. according to the described all insulation power switch of the arbitrary claim of claim 1 to 6; It is characterized in that: each links to each other with an end of moving conductive rod (25) to the moving contact (23) in the said dynamic and static contact assembly; The other end of said moving conductive rod (25) links to each other with a wherein conducting rod into and out of conducting rod (21,22) through soft electric conductor (26); Said each the fixed contact in the dynamic and static contact assembly (24) is linked to each other with another conducting rod in conducting rod (21,22); Described actuator comprises the axial centre place that is positioned at said vacuum chamber (20) and through the motion bar (28) that each connecting rod (27) is connected with each said moving conductive rod (25), moves axially under the driving of the rotating shaft (29) of this motion bar (28) outside an outer end radially is exposed to said insulation crust (1).
8. all insulation power switch according to claim 7; It is characterized in that: described motion bar (28) one ends are plugged in first guide holder (2a) in the said vacuum chamber (20); The other end has a pivot pin (28a); The inner of said rotating shaft (29) is equipped with rotary body (29b); On this rotary body (29b), have the radial slot (29a) that supplies said pivot pin (28a) to insert, the outer end of said rotating shaft (29) is exposed to outside the said insulation crust (1) after radially passing second guide holder (2b) in the said vacuum chamber (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203021251U CN202178207U (en) | 2011-08-17 | 2011-08-17 | All-insulation power switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203021251U CN202178207U (en) | 2011-08-17 | 2011-08-17 | All-insulation power switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202178207U true CN202178207U (en) | 2012-03-28 |
Family
ID=45868075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203021251U Expired - Fee Related CN202178207U (en) | 2011-08-17 | 2011-08-17 | All-insulation power switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202178207U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014173064A1 (en) * | 2013-04-22 | 2014-10-30 | 许昌永新电气股份有限公司 | New opening-closing transmission apparatus for high-voltage electric appliance switch |
| CN109599272A (en) * | 2018-12-26 | 2019-04-09 | 大禹电气科技股份有限公司 | A kind of rapid insertion device and switching device applied to high-voltage electricity |
| CN112054635A (en) * | 2020-08-28 | 2020-12-08 | 王照雨 | AC asynchronous stepless speed regulating motor |
-
2011
- 2011-08-17 CN CN2011203021251U patent/CN202178207U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014173064A1 (en) * | 2013-04-22 | 2014-10-30 | 许昌永新电气股份有限公司 | New opening-closing transmission apparatus for high-voltage electric appliance switch |
| US9437373B2 (en) | 2013-04-22 | 2016-09-06 | Xuchang Yongxin Electric Corporation Limited | On-off transmission device for high voltage electric switch |
| CN109599272A (en) * | 2018-12-26 | 2019-04-09 | 大禹电气科技股份有限公司 | A kind of rapid insertion device and switching device applied to high-voltage electricity |
| CN112054635A (en) * | 2020-08-28 | 2020-12-08 | 王照雨 | AC asynchronous stepless speed regulating motor |
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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: 20120328 Termination date: 20170817 |