CN206877904U - A kind of exposed shielding device for accelerating vacuum interrupter radiating - Google Patents
A kind of exposed shielding device for accelerating vacuum interrupter radiating Download PDFInfo
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- CN206877904U CN206877904U CN201720843420.5U CN201720843420U CN206877904U CN 206877904 U CN206877904 U CN 206877904U CN 201720843420 U CN201720843420 U CN 201720843420U CN 206877904 U CN206877904 U CN 206877904U
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- radome
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- ceramic package
- vacuum interrupter
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Abstract
The utility model proposes a kind of exposed shielding device for accelerating vacuum interrupter radiating, including ceramic package, radome, upper cover plate and lower cover, the upper cover plate and lower cover are respectively arranged on the both ends of ceramic package, and static contact and moving contact are fixedly mounted respectively, the radome is located at Ceramic shell internal, the ceramic package is hollow cylindrical and radius is in gradual change shape vertically, radius is gradually reduced from the centre of cylinder to both ends, and wherein the thickness of the cylinder of center section is less than the thickness of the cylinder at both ends.On the one hand electric-field intensity that the utility model can reduce inside reduces caloric value, on the other hand can also accelerate the radiating of vacuum interrupter by superconducting radiating tube heat conduction.
Description
Technical field
It the utility model is related to a kind of exposed shielding device for accelerating vacuum interrupter radiating.
Background technology
Vacuum interrupter not only produces electric arc when contact disconnects in its housing, also along with the releasing of amount of heat, such as
What causes these heats to dissipate rapidly, is not only related to contact service life, is also related to the security reliability of vacuum interrupter.
Radiating mode known at present includes：Heat loss through radiation, heat loss through conduction, heat loss through convection etc..Due to the vacuum environment of vacuum interrupter,
Interior is substantially not present the air of convection current, and heat loss through convection and infeasible is carried out in housing, is only capable of being radiated in outdoor, example
Such as, the Chinese Patent Application No. of Shaanxi Yu Guang Electric Applicance Co., Ltd in 2015 is 2015102535354, is devised with rhombus wing
The holder device of vacuum circuit breaker, by shell outside support on set special shape fin, accelerate air flow radiating.
But this kind of mode is due to setting outside housing, it is impossible to fundamentally solves heat dissipation problem.
At present in the radiating in vacuum extinction room using it is more universal be exactly heat loss through radiation and heat loss through conduction.For example,
The Chinese Patent Application No. of CAS Electrical Engineering Research Institute in 2008 is a kind of 200810116544 heat pipe vacuum switch,
Including a hot-pipe system for being used for cooling, the hot-pipe system filled with coolant is set using positioned at the side of contact, will be touched
Heat caused by head is taken out of, and is discharged heat using radiator on the outside of vacuum switch.The vacuum switch with heat pipe is
It is to be radiated using the mode of heat loss through conduction.And for example, the Application No. of Xuchang Yongxin Electric Co., Ltd. in 2016
A kind of 2016101687941 novel arc extinguishing room, its housing is interior to be filled with nanometer insulation meterial, and this kind of material is spherical particle,
Rate of irradiation can be improved by mutual transmission, reduce indoor temperature.
But several radiatings, DeGrain, and can not fundamentally reduce heat caused by arc extinguishing above.
One of the vital part of shield assembly as vacuum interrupter, main function are that have when producing electric arc between contact
A large amount of metal vapors and drop are to vacuum interrupter surrounding splash, and these electric arc products are if deposited in vacuum interrupter
Surface, the dielectric strength for making vacuum interrupter is reduced, in order to prevent this point, main shield cover will block going for electric arc product
Road, prevent insulation crust from being polluted by electric arc product.The fixed form selection of main shield cover directly affects vacuum interrupter
Appearance and size size and internal electric field distribution.The also no document of prior art did not influenceed to go out after discussing the improvement for radome
The profile of arc chamber, and can quick heat radiating improve the mode in life-span.
Utility model content
The utility model proposes a kind of exposed shielding device for accelerating vacuum interrupter radiating, on the one hand can reduce
Internal electric-field intensity reduces caloric value, on the other hand can also accelerate vacuum interrupter by superconducting radiating tube heat conduction
Radiating.
What the technical solution of the utility model was realized in：
A kind of exposed shielding device for accelerating vacuum interrupter radiating, including ceramic package 1, radome 2, upper cover plate 3
With lower cover 4, the upper cover plate 3 and lower cover 4 are respectively arranged on the both ends of ceramic package 1, and be fixedly mounted respectively static contact and
Moving contact, the radome 2 is inside ceramic package 1, and the ceramic package 1 is hollow cylindrical and radius is in gradually vertically
Become shape, radius is gradually reduced from the centre of cylinder to both ends, and wherein the thickness of the cylinder of center section is less than the cylinder at both ends
Thickness.
Preferably, the both ends of the cover of shielding 2 extend respectively to the upper cover plate 3 and lower cover 4 of the end of ceramic package 1.
Preferably, the outer surface of the radome 2 is provided with the fin 6 of a circle along the circumferential direction, the inwall of ceramic package 1
Groove provided with a circle along the circumferential direction, the fitting inwall of ceramic package 1 of radome 2 and radome 2 are coordinated recessed by fin 6
Groove is embedded inside ceramic package 1.
Preferably, the centre position that the radome 2 is placed in ceramic package 1.
Preferably, the radome 2 is provided with superconducting radiating tube 5.
Preferably, the superconducting radiating tube 5 extends to end from the middle part of radome 2.
Preferably, the V-shaped groove 7 that the inner surface setting of the radome 2 axially extends.
Preferably, the inner surface of the radome 2 coats one layer of arc protection material layer.
Had the beneficial effect that caused by the utility model：On the one hand, the design of existing radome is improved in the utility model
Shape, increasing radius of curvature reduces electric-field intensity, reduces caloric value；On the other hand, the supersaturation in bellows is prevented
Carbon is separated out in high temperature with the carbide form of chromium, the problem of causing bellows that chronic leakage occurs, and designs the screen of exposed structure
Cover is covered, superconducting radiating tube is set on radome and does not interfere with the electric conductivity of conducting rod, so as to accelerate vacuum interrupter
Radiating.The V-shaped groove of shielding cover inner surface can increase thermocontact area, further reduce electric-field intensity, reduce heat and produce, together
When it is as early as possible that the heat of inside is incoming and then radiated by superconducting radiating tube, and radome is in the contact of dynamic/static contact
Position is center, does not interfere with the uniformity of internal electric field.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of radome in the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
A kind of exposed shielding device for accelerating vacuum interrupter radiating as shown in Figure 1-2, including ceramic package 1, shielding
Cover 2, upper cover plate 3 and lower cover 4, the upper cover plate 3 and lower cover 4 are respectively arranged on the both ends of ceramic package 1, and fixed peace respectively
Static contact and moving contact are filled, for the radome 2 inside ceramic package 1, the ceramic package 1 is hollow cylindrical and along axle
It is in gradual change shape to radius, radius is gradually reduced from the centre of cylinder to both ends, and wherein the thickness of the cylinder of center section is less than two
The thickness of the cylinder at end.
In the present embodiment, the outer surface of radome 2 is provided with the fin 6 of a circle along the circumferential direction, the inwall of ceramic package 1
Groove provided with a circle along the circumferential direction, the fitting inwall of ceramic package 1 of radome 2 and radome 2 are coordinated recessed by fin 6
Groove is embedded inside ceramic package 1.The design shape of improved radome, increasing radius of curvature reduces electric-field intensity, subtracts
Caloric value is lacked.
In the present embodiment, the both ends of the cover of shielding 2 extend respectively to the upper cover plate 3 and lower cover 4 of the end of ceramic package 1, screen
Cover the centre position that cover 2 is placed in ceramic package 1, radome 2 is provided with superconducting radiating tube 5, superconducting radiating tube 5 from
The middle part of radome 2 extends to end, and the inner surface of radome 2 coats one layer of arc protection material layer.In order to prevent prior art
Supersaturated carbon in bellows is separated out in high temperature with the carbide form of chromium, the problem of causing bellows that chronic leakage occurs,
The radome of exposed structure is designed, superconducting radiating tube is set on radome and does not interfere with the electric conductivity of conducting rod, so as to
Accelerate the radiating of vacuum interrupter.Driven, static contact separation position starts, and sets superconducting radiating tube 5, caused heat
It can rapidly be radiated by radiating tube, reach the quick purpose for reducing heat in arc-chutes, extend product uses the longevity
Life.
The V-shaped groove 7 that the inner surface setting of radome 2 axially extends, shields the V-shaped groove of cover inner surface and can increase heat and connect
Contacting surface product increases radius of curvature simultaneously reduces electric-field intensity, reduces heat and produces, at the same as early as possible by the heat of inside be passed into
And radiated by superconducting radiating tube, and it is center that radome, which is in the contact site of dynamic/static contact, is not interfered with
The uniformity of internal electric field.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (8)
1. a kind of exposed shielding device for accelerating vacuum interrupter radiating, including ceramic package (1), radome (2), upper cover plate
(3) and lower cover (4), the upper cover plate (3) and lower cover (4) are respectively arranged on the both ends of ceramic package (1), and fixed peace respectively
Static contact and moving contact are filled, the radome (2) is internal located at ceramic package (1), it is characterised in that the ceramic package (1)
Radius is in gradual change shape for hollow cylindrical and vertically, and radius is gradually reduced from the centre of cylinder to both ends, wherein center section
Cylinder thickness be less than both ends cylinder thickness.
2. a kind of exposed shielding device for accelerating vacuum interrupter radiating as claimed in claim 1, it is characterised in that described
The both ends of radome (2) extend respectively to the upper cover plate (3) and lower cover (4) of ceramic package (1) end.
3. a kind of exposed shielding device for accelerating vacuum interrupter radiating as claimed in claim 1, it is characterised in that described
The outer surface of radome (2) is provided with the fin (6) of a circle along the circumferential direction, and ceramic package (1) inwall is provided with a circle along circle
The groove of circumferential direction, the radome (2) is bonded ceramic package (1) inwall and radome (2) is embedding by fin (6) fit
It is internal located at ceramic package (1).
4. a kind of exposed shielding device for accelerating vacuum interrupter radiating as claimed in claim 1, it is characterised in that described
The centre position that radome (2) is placed in ceramic package (1).
5. a kind of exposed shielding device for accelerating vacuum interrupter radiating as claimed in claim 1, it is characterised in that described
Radome (2) is provided with superconducting radiating tube (5).
6. a kind of exposed shielding device for accelerating vacuum interrupter radiating as claimed in claim 5, it is characterised in that described
Superconducting radiating tube (5) extends to end in the middle part of radome (2).
7. a kind of exposed shielding device for accelerating vacuum interrupter radiating as claimed in claim 1, it is characterised in that described
The V-shaped groove (7) that the inner surface setting of radome (2) axially extends.
8. a kind of exposed shielding device for accelerating vacuum interrupter radiating as claimed in claim 1, it is characterised in that described
The inner surface of radome (2) coats one layer of arc protection material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720843420.5U CN206877904U (en) | 2017-07-12 | 2017-07-12 | A kind of exposed shielding device for accelerating vacuum interrupter radiating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720843420.5U CN206877904U (en) | 2017-07-12 | 2017-07-12 | A kind of exposed shielding device for accelerating vacuum interrupter radiating |
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| CN206877904U true CN206877904U (en) | 2018-01-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170634A (en) * | 2017-07-12 | 2017-09-15 | 湖北大禹汉光真空电器有限公司 | A kind of exposed shielding device for accelerating vacuum interrupter to radiate |
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2017
- 2017-07-12 CN CN201720843420.5U patent/CN206877904U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170634A (en) * | 2017-07-12 | 2017-09-15 | 湖北大禹汉光真空电器有限公司 | A kind of exposed shielding device for accelerating vacuum interrupter to radiate |
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