CN106683915A - Insulation spindle and load switch - Google Patents
Insulation spindle and load switch Download PDFInfo
- Publication number
- CN106683915A CN106683915A CN201710081647.5A CN201710081647A CN106683915A CN 106683915 A CN106683915 A CN 106683915A CN 201710081647 A CN201710081647 A CN 201710081647A CN 106683915 A CN106683915 A CN 106683915A
- Authority
- CN
- China
- Prior art keywords
- moving contact
- load switch
- insulation
- main shaft
- installing arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention discloses a insulation spindle and a load switch, wherein the insulation spindle includes a spindles body which is provided with three installation arms with moving contacts, and is characterized in that all the installation arms with moving contacts has the same structure. The spindles body and two sides of each installation arm with moving contact are respectively provided with a plurality of insulation grid-plate to add the creepage distance. All the installation arms with moving contacts are cavity structure. One end of the installation arm with moving contact is communicated with the spindle body and the other end is provided with a moving contact pressure linear regulator. The moving contact pressure linear regulator is used to linearly regulate the pressure of moving contact so that the stability of the contact performance between the moving contact and a grounding static contact can be guaranteed.
Description
Technical field
The invention belongs to field of electronic devices, more particularly to a kind of insulation spindle and on-load switch.
Background technology
On-load switch is a kind of device for switching between breaker and disconnecting switch, with simple arc-control device,
Rated load current and certain overload current can be cut off, but short circuit current can not be cut off.The operation principle of on-load switch is：It is negative
Lotus switchs and combined electrical apparatus constitutes operating mechanism, then drives the insulation spindle of on-load switch to rotate by output shaft, and then realizes
The separating brake of on-load switch, close a floodgate and ground connection operation.Therefore, insulation spindle is the chief component and crucial zero of on-load switch
Part.In order to meet the technical requirements of on-load switch, the mechanical performance of insulation spindle, insulating properties and electric property are critically important.But,
The structure design of current insulation spindle is unreasonable, and the insulation spindle body of insulation spindle is easily destroyed because load is excessive.
In addition, current insulation spindle is also present：
(1) method of traditional regulation contact pressure realized by increasing and decreasing pad, wherein, the effect of contact pressure
It is to ensure that contact is good, reduces contact resistance；And this method cannot accomplish linear accurate adjustment, contact is ultimately resulted in
The unstable situation of contact；
(2) insulation spindle having can not meet because creep age distance is not enough, phase insulation insufficient strength in terms of insulating capacity
The requirement of present environment-friendly type gas-filling cabinet.
The content of the invention
In order to solve the shortcoming of prior art, the first object of the present invention is to provide a kind of insulation spindle.
Insulation spindle of the invention, including main shaft body, are provided with three moving contact installing arms on the main shaft body, its
It is characterised by, the structure of each moving contact installing arm is identical, is installed on the main shaft body and positioned at each moving contact
Arm both sides are respectively arranged with several insulation grid to increase creep age distance；
Each described moving contact installing arm is cavity structure, and one end of moving contact installing arm is connected with main shaft body,
The other end is provided with moving contact pressure linear regulation device, and it is dynamic tactile that the moving contact pressure linear regulation device is used for linear regulation
Head pressure, to ensure the stability of the contact performance between moving contact and its grounding static contact for matching.
The present invention by transferring contact pressure linear regulation device come linear regulation moving contact pressure, with ensure moving contact with
This regulative mode of the stability of the contact performance between its grounding static contact for matching, can accomplish linear regulation, adjust
Section precision is higher, ensure that contact is good, reduces contact resistance.
The present invention passes through moving contact installing arm spaced set so that main shaft body is integrally formed with moving contact installing arm,
Improve assembly precision.
Further, the moving contact pressure linear regulation device includes screw rod and is arranged two moving contact bullets thereon
Spring, the two moving contact springs are respectively arranged at moving contact both sides；One end of the screw rod is arranged at the one of moving contact installing arm
On individual side, the side relative with the side is provided with opening, and the other end of screw rod is protruding from opening and is provided with spiral shell
Mother, by adjusting nut in the position of screw rod come the linear decrement for changing moving contact spring, and then linear regulation moving contact pressure
Power, to ensure the stability of the contact performance between moving contact and its grounding static contact for matching.
Further, moving contact installing arm spaced set is on main shaft body.
What it was produced has the beneficial effect that：Electric fields uniform is so caused, insulating capacity is improve.
Further, insulation grid is set in parallel on main shaft body.
What it was produced has the beneficial effect that：Electric fields uniform is so caused, insulating capacity is improve.
Further, it is spaced between the insulation grid of moving contact installing arm the same side equal.
What it was produced has the beneficial effect that：Creep age distance, and electric fields uniform are increased, insulating capacity is improve.
Further, first side is identical with the U-shaped opening size on the 3rd side.
The uniformity of electric field can so be improved.
The second object of the present invention is to provide a kind of on-load switch.
A kind of on-load switch of the invention, including insulation spindle as described above.
Further, the on-load switch also includes electric conductor, the moving contact that electric conductor is wrapped up with insulation spindle
It is articulated and connected, electric conductor is fixed on the insulator, and insulator is fixed on framework.
Further, three grounding static contacts are further fixed on the framework, grounding static contact is engaged with moving contact, it is real
The break-make of existing earthed switch.
Further, the insulator is fixedly connected with framework and electric conductor respectively by screw thread.It is beneficial that it is produced
Effect is：Fixation is risen to conductor, and insulating effect is played between conductor and framework.
Further, the framework is insulator.What it was produced has the beneficial effect that：Insulating properties are more excellent.
Wherein, between two conductive parts for measuring along insulating surface, under different service conditions, due to conductor week
The insulating materials for enclosing is electrically polarized, and causes insulating materials that electrification phenomenon is presented, and the radius of this live zone is creep age distance.
Beneficial effects of the present invention are：
(1) present invention by adjusting screw rod tightness come linear regulation moving contact pressure, to ensure moving contact with its phase
This regulative mode of the stability of the contact performance between the grounding static contact of matching, can accomplish linear regulation, regulation essence
Du Genggao, ensure that contact is good, reduce contact resistance.
(2) insulation spindle of the invention is fixed and wraps up moving contact, strengthens the phase insulation ability between moving contact, right
The cladding of electrical body, and simplify design, in appearance per consistent, electric field will not gap it is too big so that electric fields uniform, prevent
Discharge Phenomena.
(3) main shaft and insulating part are integrally formed；High mechanical strength, installation accuracy is high, and characterisitic parameter is accurate, in main shaft
Several insulation grid are respectively arranged with body and positioned at each moving contact installing arm both sides to increase creep age distance.
Brief description of the drawings
The Figure of description for constituting a part of the invention is used for providing a further understanding of the present invention, of the invention to show
Meaning property and its illustrates, for explaining the present invention, not constitute inappropriate limitation of the present invention embodiment.
Fig. 1 is a kind of insulation spindle dimensional structure diagram.
Fig. 2 is a kind of side view of on-load switch.
Fig. 3 is a kind of sectional view of on-load switch.
Fig. 4 is a kind of dimensional structure diagram of on-load switch.
Wherein, 1- main shaft bodies, 2- moving contact installing arms, 3- insulation grid, 4- screw rods, 5- frameworks, 6- moving contacts, 7- leads
Electric conductor, 8- insulators, 9- grounding static contacts.
Specific embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the present invention.Unless another
Indicate, all technologies used herein and scientific terminology are with usual with general technical staff of the technical field of the invention
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to illustrative embodiments of the invention.As used herein, unless the context clearly indicates otherwise, otherwise singulative
Be also intended to include plural form, additionally, it should be understood that, when in this manual use term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As shown in Figure 1-Figure 3, insulation spindle of the invention, including main shaft body 1, three are provided with the main shaft body 1
Individual moving contact installing arm 2, the structure of each moving contact installing arm 2 is identical, on the main shaft body 1 and dynamic positioned at each
The both sides of contact installing arm 2 are respectively arranged with several insulation grid 3 to increase creep age distance；
Each described moving contact installing arm 2 is cavity structure, and one end of moving contact installing arm 2 is connected with main shaft body 1
Logical, the other end is provided with moving contact pressure linear regulation device, and the moving contact pressure linear regulation device is used for linear regulation
Moving contact pressure, to ensure the stability of the contact performance between moving contact and its grounding static contact for matching.
In one embodiment, moving contact pressure linear regulation device includes screw rod and is arranged two moving contacts thereon
Spring, the two moving contact springs are respectively arranged at moving contact both sides；One end of the screw rod is arranged at moving contact installing arm
On one side, the side relative with the side is provided with opening, and the other end of screw rod is protruding from opening and is provided with
Nut, by adjusting nut in the position of screw rod come the linear decrement for changing moving contact spring, and then linear regulation moving contact
Pressure, to ensure the stability of the contact performance between moving contact and its grounding static contact for matching.
Specifically, each described moving contact installing arm 2 is first side, second side, the 3rd side by being sequentially connected
The cavity structure that face and the 4th side surround；The head end of moving contact installing arm 2 is connected with main shaft body 1, the end of moving contact installing arm 2
The first side at end, second side and the 3rd side offer U-shaped opening respectively；
It is provided with moving contact installing arm 2 outside screw rod 3, screw rod 3 and is equipped with moving contact spring, the one end of the screw rod 3 is fixed
On the 4th side, the other end is protruding from the U-shaped opening of second side, by the tightness of adjusting screw rod 3 come linear
Regulation moving contact pressure, to ensure the stability of the contact performance between moving contact and its grounding static contact for matching.
Wherein, first side is identical with the U-shaped opening size on the 3rd side.The uniformity of electric field can so be improved.
It should be noted that above-described embodiment is only a kind of structure type of moving contact pressure linear regulation device, also
Other existing structure types can be included.
In another embodiment, moving contact installing arm spaced set is on main shaft body.
What it was produced has the beneficial effect that：Electric fields uniform is so caused, insulating capacity is improve.
In another embodiment, insulation grid is set in parallel on main shaft body.
What it was produced has the beneficial effect that：Electric fields uniform is so caused, insulating capacity is improve.
In another embodiment, it is spaced between the insulation grid of moving contact installing arm the same side equal.
What it was produced has the beneficial effect that：Creep age distance, and electric fields uniform are increased, insulating capacity is improve.
As shown in figure 4, present invention also offers a kind of on-load switch.
A kind of on-load switch of the invention, employs insulation spindle as Figure 1-3.
Further, the on-load switch also includes electric conductor 7, and electric conductor 7 is dynamic tactile with what insulation spindle was wrapped up
First 6 are articulated and connected, and electric conductor 7 is fixed on insulator 8, and insulator 8 is fixed on framework 5.
Further, three grounding static contacts 9 are further fixed on the framework 5, grounding static contact 9 matches with moving contact 6
Close, realize the break-make of on-load switch.
Further, the insulator 8 is fixedly connected with framework 5 and electric conductor 7 respectively by screw thread.
What it was produced has the beneficial effect that：Fixation is risen to conductor, and insulating effect is played between conductor and framework.
Further, the framework is insulator.
What it was produced has the beneficial effect that：Insulating properties are more excellent.
The operation principle of on-load switch of the invention is：
When moving contact 6 and grounding static contact 9 are contacted, can be grounded line side；
The acting as of framework 5 fixes electric conductor.And isolate electric conductor and shell, play fixed and insulating effect；
Electric conductor 7 connects static contact and outlet terminal, plays conducting.
The present invention by adjusting screw rod tightness come linear regulation moving contact pressure, to ensure that moving contact matches with it
Grounding static contact between contact performance stability this regulative mode, linear regulation can be accomplished, degree of regulation is more
Height, ensure that contact is good, reduce contact resistance.
Insulation spindle of the invention is fixed and wraps up moving contact, the phase insulation ability between moving contact is strengthened, to band
The cladding of electric body, and simplify design, in appearance per consistent, electric field will not gap it is too big so that electric fields uniform, prevent out
Existing electric discharge phenomena.
Main shaft of the invention and insulating part are integrally formed；High mechanical strength, installation accuracy is high, and characterisitic parameter is accurate,
Several insulation grid are respectively arranged with main shaft body and positioned at each moving contact installing arm both sides to increase creep age distance.
Although above-mentioned be described with reference to accompanying drawing to specific embodiment of the invention, not to present invention protection model
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need the various modifications made by paying creative work or deformation still within protection scope of the present invention.
Claims (10)
1. a kind of insulation spindle, including main shaft body, is provided with three moving contact installing arms on the main shaft body, its feature exists
In the structure of each moving contact installing arm is identical, on the main shaft body and positioned at each moving contact installing arm both sides
Several insulation grid are respectively arranged with to increase creep age distance；
Each described moving contact installing arm is cavity structure, and one end of moving contact installing arm is connected with main shaft body, another
End is provided with moving contact pressure linear regulation device, and the moving contact pressure linear regulation device is used for linear regulation moving contact pressure
Power, to ensure the stability of the contact performance between moving contact and its grounding static contact for matching.
2. a kind of insulation spindle as claimed in claim 1, it is characterised in that the moving contact pressure linear regulation device includes
Screw rod and two moving contact springs thereon are arranged, the two moving contact springs are respectively arranged at moving contact both sides；The spiral shell
One end of bar is arranged on a side of moving contact installing arm, and the side relative with the side is provided with opening, screw rod it is another
One end is protruding from opening and is provided with nut, and linearly moving contact spring is changed in the position of screw rod by adjusting nut
Decrement, and then linear regulation moving contact pressure, to ensure the contact between the grounding static contact that moving contact and its match
The stability of performance.
3. a kind of insulation spindle as claimed in claim 1, it is characterised in that moving contact installing arm spaced set is in main shaft sheet
On body.
4. a kind of insulation spindle as claimed in claim 1, it is characterised in that positioned at the insulated gate of moving contact installing arm the same side
It is spaced between piece equal.
5. a kind of insulation spindle as claimed in claim 1, it is characterised in that insulation grid is set in parallel on main shaft body.
6. a kind of on-load switch, it is characterised in that including the insulation spindle as any one of claim 1-5.
7. a kind of on-load switch as claimed in claim 6, it is characterised in that the on-load switch also includes electric conductor, leads
Electric conductor is articulated and connected with the moving contact that insulation spindle is wrapped up, and electric conductor is fixed on the insulator, and insulator is fixed on frame
On frame.
8. a kind of on-load switch as claimed in claim 7, it is characterised in that three ground connection stationary contacts are further fixed on the framework
Head, grounding static contact is engaged with moving contact, realizes the break-make of on-load switch.
9. a kind of on-load switch as claimed in claim 6, it is characterised in that the insulator by screw thread respectively with framework and
Electric conductor is fixedly connected.
10. a kind of on-load switch as claimed in claim 7, it is characterised in that the framework is insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710081647.5A CN106683915A (en) | 2017-02-15 | 2017-02-15 | Insulation spindle and load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710081647.5A CN106683915A (en) | 2017-02-15 | 2017-02-15 | Insulation spindle and load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106683915A true CN106683915A (en) | 2017-05-17 |
Family
ID=58861322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710081647.5A Pending CN106683915A (en) | 2017-02-15 | 2017-02-15 | Insulation spindle and load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106683915A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108987133A (en) * | 2018-08-24 | 2018-12-11 | 德力西电气有限公司 | A kind of structure of contact terminal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011020509A1 (en) * | 2009-08-20 | 2011-02-24 | Siemens Aktiengesellschaft | Switchgear |
| CN103474284A (en) * | 2013-09-24 | 2013-12-25 | 东盟电气集团浙江开关有限公司 | Three-work-station dual-ground-connection load switch |
| CN105185649A (en) * | 2015-10-13 | 2015-12-23 | 哈尔滨朗昇电气股份有限公司 | Indoor high-voltage load switch device and method for turning off load current |
| CN205810596U (en) * | 2016-06-08 | 2016-12-14 | 河北电力装备有限公司 | A kind of assembled insulation spindle |
-
2017
- 2017-02-15 CN CN201710081647.5A patent/CN106683915A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011020509A1 (en) * | 2009-08-20 | 2011-02-24 | Siemens Aktiengesellschaft | Switchgear |
| CN103474284A (en) * | 2013-09-24 | 2013-12-25 | 东盟电气集团浙江开关有限公司 | Three-work-station dual-ground-connection load switch |
| CN105185649A (en) * | 2015-10-13 | 2015-12-23 | 哈尔滨朗昇电气股份有限公司 | Indoor high-voltage load switch device and method for turning off load current |
| CN205810596U (en) * | 2016-06-08 | 2016-12-14 | 河北电力装备有限公司 | A kind of assembled insulation spindle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108987133A (en) * | 2018-08-24 | 2018-12-11 | 德力西电气有限公司 | A kind of structure of contact terminal |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |