CN209561279U - A kind of vacuum interrupter - Google Patents
A kind of vacuum interrupter Download PDFInfo
- Publication number
- CN209561279U CN209561279U CN201920532678.2U CN201920532678U CN209561279U CN 209561279 U CN209561279 U CN 209561279U CN 201920532678 U CN201920532678 U CN 201920532678U CN 209561279 U CN209561279 U CN 209561279U
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- ring
- cover board
- sealing
- ceramic shell
- vacuum interrupter
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Abstract
The utility model discloses a kind of vacuum interrupters, its drip irrigation device includes ceramic shell, cover board, the ceramic shell is towards the end face of cover board outside is fixedly connected with prefabricated metal ring, inside is provided with seal groove, sealing ring is provided at the seal groove, the side of the cover board towards ceramic shell is provided with the connection ring on the inside of prefabricated metal ring, snap ring is connected in the middle part of the connection ring end face, inside is connected with end ring, the sealing ring is provided with the card slot being caught in for snap ring, is close on the inside of the end ring and sealing ring.Prefabricated metal ring is first fixed on ceramic shell, then installs sealing ring to being caught in seal groove, then loads onto cover board, and prefabricated metal ring and cover board are welded together to the sealing-in for just completing ceramic shell and cover board.The dual airtight construction of one side outside weld inner seal ring, so that the air-tightness at sealing-in greatly improves, vacuum degree is guaranteed, long service life.
Description
Technical field
The utility model relates to electrical equipment, in particular to a kind of vacuum interrupter.
Background technique
Vacuum interrupter also known as vacuum switch tube are the core components of mesohigh power switch, and main function is: logical
Crossing the excellent insulating properties of vacuum in managing makes after mesohigh circuitry cuts power supply blow-out and to inhibit electric current rapidly, avoids accident and meaning
Outer generation.Vacuum interrupter is divided into arc extinguishing chamber for breaker and on-load switch arc-chutes again from purposes, from shell again
It is divided into glass evacuated arc-chutes and ceramic vacuum arc-chutes.
The structure of vacuum interrupter is as follows at present: exhausted including being made of insulation crust, dynamic cover board, quiet cover board, bellows
Edge system, the conducting system being made of moving conductive rod, moving contact, static conductive rod, static contact, is made of shielding case and other parts
Shielding harness.
Notification number is that the Chinese patent of CN103489699B discloses a kind of high voltage vacuum interrupter, including cloche, solid
Be scheduled on the static side cover board and moved end cover board at cloche both ends, be equipped in cloche the static conductive rod that is fixed on static side cover board and
The moving conductive rod being slidably connected on the cover board of moved end, static conductive rod inner end are provided with static contact, and moving conductive rod inner end is provided with dynamic
Contact is equipped with the first quiet cover cylinder and the first dynamic cover cylinder in cloche.
There are following technological deficiencies for above-mentioned vacuum interrupter: welding is used between cloche and static side cover board, moved end cover board,
To guarantee house vacuum degree, the requirement to welding procedure is high, if cloche is porcelain cover, solder is difficult to infiltrate ceramic surface, welds
Difficulty is higher, and then is difficult to that indoor air-tightness is effectively ensured, and arc extinguishing ability not can guarantee after arc-chutes are used for a long time, and need to be changed
Into.
Utility model content
In view of the above technical defects, the purpose of the utility model is to provide a kind of vacuum interrupter, it can effectively ensure that gas
Close property, long service life.
To achieve the above object, the utility model provides following technical solution:
A kind of vacuum interrupter, including ceramic shell, cover board, the ceramic shell connect towards the end face of cover board outside is fixed
Be connected to prefabricated metal ring, inside is provided with seal groove, is provided with sealing ring at the seal groove, the cover board is towards ceramic shell
Side be provided with the connection ring on the inside of prefabricated metal ring, snap ring, inside connection are connected in the middle part of the connection ring end face
There is end ring, the sealing ring is provided with the card slot being caught in for snap ring, is close on the inside of the end ring and sealing ring.
By using above-mentioned technical proposal, prefabricated metal ring is first fixed on ceramic shell, then installs sealing ring to being caught in
In seal groove, cover board is then loaded onto, prefabricated metal ring and cover board are welded together to the sealing-in for just completing ceramic shell and cover board.
The dual airtight construction of one side outside weld inner seal ring, so that the air-tightness at sealing-in greatly improves, vacuum degree is guaranteed, and makes
It is long with the service life；On the other hand since the temperature of Ceramic-to-metal seal technique is generally higher, the sealing ring of rubber system is difficult to bear,
Therefore Ceramic-to-metal seal is carried out in advance, is beneficial to prevent sealing ring and is heated excessively high and is denaturalized.
The utility model is further arranged to: the seal groove slot bottom is fixedly connected with multiple fixations around its axial line interval
Block, the sealing ring are provided with the fixing groove with fixed block interference fit.
By using above-mentioned technical proposal, after sealing ring is caught in seal groove, fixed block is caught in fixing groove so that sealing ring by
The good fixing effect arrived, it is difficult to axially be rotated around itself, and then avoid abrasion.
The utility model is further arranged to: the sealing ring is made of silicon rubber.
By using above-mentioned technical proposal, the high temperature resistance of silicon rubber is excellent, can satisfy the demand of vacuum interrupter.
The utility model is further arranged to: there are two the ceramic shell settings, two ceramic shells opposite one
It is provided with middle lock ring between side, is provided with prefabricated metal ring between the middle lock ring and ceramic shell.
By using above-mentioned technical proposal, assembled convenient for each component of vacuum interrupter.
The utility model is further arranged to: being sealed between the prefabricated metal ring and ceramic shell using active metal method
It connects, using soldering sealing-in between the prefabricated metal ring and middle lock ring, cover board.
By using above-mentioned technical proposal, active metal method has the advantages that process is few, the period is short；The temperature of soldering is opposite
It is lower, it is not easy to damage sealing ring, and easily keep the precise measure of workpiece.
The utility model is further arranged to: shielding case, protrusion on the outside of the shielding case are connected on the inside of the middle lock ring
Formed and be connected to the bulge loop of middle lock ring side, restraining position ring block is arranged away from the side of bulge loop in the middle lock ring, the stop collar with
Shielding case is detachably connected.
By using above-mentioned technical proposal, without closely being connected between shielding case and middle lock ring, therefore relative to biography
The method of system welding, the installation rapid and convenient of shielding case.
The utility model is further arranged to: the shielding covers in stop collar and is connected with multiple limits away from the side of middle lock ring
Position block, the stop collar inside are provided with the limit hole passed through for limited block.
By using above-mentioned technical proposal, first by middle institute's ring set on the outside of shielding case until is close to bulge loop, then will limit
Ring set until limited block passes through limit hole on the outside of shielding case, be close to middle lock ring by stop collar, and then rotary spacing ring is until limit
Position hole and limited block misplace, and stop collar is just difficult to move axially along shielding case, so that limit of the shielding case by middle lock ring
And it is relatively fixed, rapid and convenient is installed.
The utility model is further arranged to: the stop collar is connected with multiple positioning protrusion away from the side of middle lock ring,
The limited block is provided with the positioning groove being caught in for positioning protrusion.
By using above-mentioned technical proposal, rotary spacing ring is caught in positioning groove up to positioning protrusion, what stop collar was subject to
Fixed effect is reinforced.
In conclusion the utility model has the following beneficial effects: the air-tightness of ceramic shell and cover board junction is good, room
Interior vacuum degree is guaranteed, and is conducive to extend the service life of vacuum interrupter；The installation rapid and convenient of shielding case.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment；
Fig. 2 is schematic cross-sectional view of the Fig. 1 along line A-A；
Fig. 3 is the enlarged diagram of B area in Fig. 2；
Fig. 4 is the enlarged diagram in the region C in Fig. 2；
Fig. 5 is the perspective view of the explosion of shielding case in embodiment, middle lock ring, stop collar；
Fig. 6 is the enlarged diagram in the region D in Fig. 5.
Description of symbols: 1, ceramic shell；11, seal groove；12, fixed block；2, cover board；21, connection ring；22, snap ring；
23, end ring；3, prefabricated metal ring；4, sealing ring；41, card slot；42, fixing groove；5, middle lock ring；6, shielding case；61, bulge loop；62,
Limited block；621, positioning groove；7, stop collar；71, limit hole；72, positioning protrusion.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
A kind of vacuum interrupter, as shown in Figure 1 and Figure 2, including two cylindric ceramic shells 1, two ceramic shells 1
Opposite one end, which is respectively connected between cover board 2, opposite one end, is connected with middle lock ring 5, is connected with shielding case 6 on the inside of middle lock ring 5.Arc extinguishing
Room further includes the structures such as moving conductive rod, moving contact, static conductive rod, static contact, bellows, protective cover, guide pipe, is existing skill
Art, details are not described herein.
As shown in Figure 2 and Figure 3, ceramic shell 1 is fixedly connected with prefabricated metal ring 3, inside towards the end face of cover board 2 outside
It is provided with seal groove 11.Be provided with the sealing ring 4 being clamped between ceramic shell 1 and cover board 2 at seal groove 11, sealing ring 4 by
The excellent silicon rubber of high temperature resistance is made.Prefabricated metal ring 3 and cover board 2 are material of the same race, such as oxygen-free copper, stainless steel.Dress
When with arc-chutes, first prefabricated metal ring 3 is fixed on ceramic shell 1 by active metal Ceramic-to-metal seal method, then toward close
It is caught in sealing ring 4 in sealing groove 11, then loads onto cover board 2, prefabricated metal ring 3 and cover board 2 are fixed together by soldering, completed
The sealing-in of ceramic shell 1 and cover board 2.The dual airtight construction of one side outside weld inner seal ring 4, so that the air-tightness at sealing-in is big
Big to improve, vacuum degree is guaranteed, long service life；On the other hand since the temperature of Ceramic-to-metal seal technique is generally higher,
The sealing ring 4 of rubber system is difficult to bear, therefore carries out Ceramic-to-metal seal in advance, be beneficial to prevent sealing ring 4 be heated it is excessively high and
Denaturation.
As shown in Figure 2 and Figure 3,3 inside of prefabricated metal ring and and sealing ring are tightly attached in the side of cover board 2 towards ceramic shell 1
The connection ring 21 that 4 end faces are close to, 21 end face of connection ring middle part is fixedly connected with snap ring 22, inside is fixedly connected with end ring 23.It is close
Seal 4 is provided with the card slot 41 being caught in for snap ring 22, is close on the inside of end ring 23 and sealing ring 4,11 slot bottom of seal groove is around its axle center
Line, which is equidistantly spaced, is fixedly connected with multiple fixed blocks 12, and sealing ring 4 is provided with the fixing groove 42 being interference fitted with fixed block 12.
Therefore 4 section of sealing ring is in being completely embedded between I-shaped or spill, with cover board 2, ceramic shell 1, and then is had good
Leakproofness.
As shown in Figure 2, Figure 4 shows, be provided with prefabricated metal ring 3 between middle lock ring 5 and ceramic shell 1, prefabricated metal ring 3, in
Lock ring 5, the material of cover board 2 are all the same.The sealing-in of active metal method is equally used at this between prefabricated metal ring 3 and ceramic shell 1,
Soldering connection between prefabricated metal ring 3 and middle lock ring 5, and then assembled convenient for each component of vacuum interrupter.Active metal method
Have the advantages that process is few, the period is short；The temperature of soldering is relatively low, is not easy to damage sealing ring 4, and easily keeps workpiece
Precise measure.
As shown in Figure 4, Figure 5, the bulge loop 61 for being connected to middle 5 side of lock ring is convexed to form on the outside of shielding case 6, middle lock ring 5 is carried on the back
Restraining position ring block 7 is close in side from bulge loop 61, and shielding case 6 is fixedly connected with multiple limits away from the side of middle lock ring 5 in stop collar 7
Position block 62, is provided with the limit hole 71 passed through for limited block 62 on the inside of stop collar 7.When connecting shielding case 6 and middle lock ring 5, first will
Bulge loop 61 is connected to middle 5 side of lock ring, then stop collar 7 is put on until limited block 62 then twists limit across limit hole 71
Ring 7 is until limit hole 71 and limited block 62 misplace, and stop collar 7 is just difficult to move axially along shielding case 6, so that shielding case 6
It is relatively fixed by the limit of middle lock ring 5, rapid and convenient is installed.
As shown in Figure 5, Figure 6, stop collar 7 is connected with multiple positioning protrusion 72, positioning protrusion 72 away from the side of middle lock ring 5
In semi-cylindrical and length is arranged radially along shielding case 6, and the side of limited block 62 towards bulge loop 61 is provided with for positioning protrusion 72
The positioning groove 621 being caught in.Rotary spacing ring 7 is until positioning protrusion 72 is caught in positioning groove 621, the fixation that stop collar 7 is subject to
Effect is reinforced.
The course of work:
When needing connecting cover plate 2 and ceramic shell 1, by active metal Ceramic-to-metal seal method first by prefabricated metal ring 3
It is fixed on ceramic shell 1, then is caught in seal groove 11 sealing ring 4 until fixed block 12 is caught in fixing groove 42, then load onto
Prefabricated metal ring 3 and cover board 2 are fixed together by soldering, complete the sealing-in of ceramic shell 1 and cover board 2 by cover board 2.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (8)
1. a kind of vacuum interrupter, including ceramic shell (1), cover board (2), it is characterised in that: ceramic shell (1) the direction lid
The end face outside of plate (2) is fixedly connected with prefabricated metal ring (3), inside is provided with seal groove (11), at the seal groove (11)
It is provided with sealing ring (4), the side of cover board (2) towards the ceramic shell (1) is provided on the inside of prefabricated metal ring (3)
Connection ring (21), connection ring (21) the end face middle part is connected with snap ring (22), inside is connected with end ring (23), the sealing ring
(4) it is provided with the card slot (41) being caught in for snap ring (22), is close on the inside of the end ring (23) and sealing ring (4).
2. a kind of vacuum interrupter according to claim 1, it is characterised in that: seal groove (11) slot bottom is around its axle center
Line interval is fixedly connected with multiple fixed blocks (12), and the sealing ring (4) is provided with the fixation with fixed block (12) interference fit
Slot (42).
3. a kind of vacuum interrupter according to claim 1, it is characterised in that: the sealing ring (4) is made of silicon rubber.
4. a kind of vacuum interrupter according to claim 1, it is characterised in that: there are two ceramic shell (1) settings,
Two ceramic shells (1) are provided with middle lock ring (5) between opposite side, between the middle lock ring (5) and ceramic shell (1)
It is provided with prefabricated metal ring (3).
5. a kind of vacuum interrupter according to claim 4, it is characterised in that: outside the prefabricated metal ring (3) and ceramics
The sealing-in of active metal method is used between shell (1), using soldering between the prefabricated metal ring (3) and middle lock ring (5), cover board (2)
Sealing-in.
6. a kind of vacuum interrupter according to claim 4, it is characterised in that: be connected with screen on the inside of the middle lock ring (5)
It covers cover (6), convexes to form the bulge loop (61) for being connected to middle lock ring (5) side, the middle lock ring (5) on the outside of the shielding case (6)
Restraining position ring block (7) are set away from the side of bulge loop (61), the stop collar (7) is detachably connected with shielding case (6).
7. a kind of vacuum interrupter according to claim 6, it is characterised in that: the shielding case (6) is carried on the back in stop collar (7)
Side from middle lock ring (5) is connected with multiple limited blocks (62), is provided on the inside of the stop collar (7) and is passed through for limited block (62)
Limit hole (71).
8. a kind of vacuum interrupter according to claim 7, it is characterised in that: the stop collar (7) deviates from middle lock ring (5)
Side be connected with multiple positioning protrusion (72), the limited block (62) is provided with the positioning groove being caught in for positioning protrusion (72)
(621)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920532678.2U CN209561279U (en) | 2019-04-18 | 2019-04-18 | A kind of vacuum interrupter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920532678.2U CN209561279U (en) | 2019-04-18 | 2019-04-18 | A kind of vacuum interrupter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209561279U true CN209561279U (en) | 2019-10-29 |
Family
ID=68313104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920532678.2U Active CN209561279U (en) | 2019-04-18 | 2019-04-18 | A kind of vacuum interrupter |
Country Status (1)
| Country | Link |
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| CN (1) | CN209561279U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950091A (en) * | 2019-04-18 | 2019-06-28 | 华光电子股份有限公司 | A kind of vacuum interrupter |
| CN117174526A (en) * | 2023-11-03 | 2023-12-05 | 沈阳华德海泰电器有限公司 | Vacuum arc-extinguishing chamber with prolonged service life |
-
2019
- 2019-04-18 CN CN201920532678.2U patent/CN209561279U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950091A (en) * | 2019-04-18 | 2019-06-28 | 华光电子股份有限公司 | A kind of vacuum interrupter |
| CN117174526A (en) * | 2023-11-03 | 2023-12-05 | 沈阳华德海泰电器有限公司 | Vacuum arc-extinguishing chamber with prolonged service life |
| CN117174526B (en) * | 2023-11-03 | 2024-01-05 | 沈阳华德海泰电器有限公司 | Vacuum arc-extinguishing chamber with prolonged service life |
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