CN202339882U - Radiating structure of large-current fixedly-sealed pole vacuum breaker - Google Patents
Radiating structure of large-current fixedly-sealed pole vacuum breaker Download PDFInfo
- Publication number
- CN202339882U CN202339882U CN2011205069255U CN201120506925U CN202339882U CN 202339882 U CN202339882 U CN 202339882U CN 2011205069255 U CN2011205069255 U CN 2011205069255U CN 201120506925 U CN201120506925 U CN 201120506925U CN 202339882 U CN202339882 U CN 202339882U
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- China
- Prior art keywords
- radiator
- contact arm
- sealed pole
- pole vacuum
- heat radiation
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- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a radiating structure of a large-current fixedly-sealed pole vacuum breaker, which comprises an epoxy resin insulating shell, and a vacuum arc extinguish chamber and an upper contact arm packaged in the epoxy resin insulating shell, wherein a wire outlet copper bar is arranged in the upper contact arm; the upper contact arm is provided with a radiator which is connected with the wire outlet copper bar; the radiator comprises a plurality of concentric radiating cylinders; supporting bars are arranged among the radiating cylinders; and the radiating cylinders are silver-chromium alloy cylinders. According to the radiating structure disclosed by the utility model, the upper contact arm is provided with the radiator which increases the radiation effect, thereby increasing the service life and the safety performance of the large-current fixedly-sealed pole vacuum breaker.
Description
Technical field
The utility model belongs to the device for switching technical field, is specifically related to a kind of radiator structure of jumbo pole circuit breaker.
Background technology
Pole is exactly through APG technology; Adopt epoxy resin as dielectric; Utilize epoxy resin that current-carrying elements such as the primary conductive partial vacuum arc control device of circuit breaker and last lower wire end all are sealed to one; Make the state of insulation of vacuum interrupter not receive the influence of external environment fully, improved environment resistant.Epoxy resin is once the main insulation of part, is again its mechanical support, and its Electric Field Distribution is superior to the insulating barrier structure of different shape.High-pressure vacuum breaker has been widely used in the switch cubicle; The vacuum circuit-breaker major loop mainly is made up of conduction major loop and operating mechanism; The conduction major loop develops into pole fixed sealing type structure from unenclosed construction at present; This structure is that vacuum interrupter and insulating cylinder are integrated into an overall structure, and through embedded technology vacuum interrupter is cast in the epoxy resin, makes the exposed conductive component of vacuum interrupter to external insulation.At present along with the big electric current of electric switch, the development of miniaturization; The pole circuit breaker becomes an emerging developing industry of switch; More producer; They have done very big improvement technically at casting process and mechanical aspects, make the circuit breaker capacity do more large and small and more large and small typeization and also do to such an extent that become better and better; At the same time, contact capacity is big more, and its electric current is just big more, and heat is just high more.The pole vacuum circuit-breaker is owing to the restriction of pole structure, and its heat radiation is difficulty very.But produce great amount of heat for high current vacuum circuit breaker with pole galvanic circle in running, destroy insulation system, reduce the useful life of circuit breaker, even cause the galvanic circle to be opened circuit, security incident occurs.
Summary of the invention
The present invention be directed to the difficult problem of present great-current fixed sealed pole vacuum circuit-breaker heat radiation, provide a kind of and can effectively distribute on/off switch and operating heat, with the device security that guarantees great-current fixed sealed pole circuit breaker and prolong its useful life.
The technical scheme that technical problem adopted that the present invention solves is:
A kind of radiator structure of great-current fixed sealed pole vacuum circuit-breaker; Comprise epoxy resins insulation housing and the vacuum interrupter and the last contact arm that are encapsulated in the epoxy resins insulation housing; Be provided with the outlet copper bar in the last contact arm, it is characterized in that contact arm is provided with radiator, radiator is connected with the outlet copper bar.When the utility model is applied to switch cubicle; Under the effect of the induced draft fan in switch cubicle; Cold air gets in the pole, through heat dissipation channel the heat of radiator is discharged rapidly outside the pole, because above-mentioned good radiator structure; Radiating and cooling is effective, thereby has improved the useful life and the security performance of pole.
Above-mentioned radiator comprises some concentric heat radiation cylinders, is provided with support bar between the heat radiation cylinder.
Above-mentioned heat radiation cylinder is silver-colored evanohm cylinder.Adopt the material of silver-colored evanohm, the coefficient of conductivity is greater than 429, perfect heat-dissipating.
Above-mentioned heat radiation cylinder is provided with three with one heart, and wall thickness of cylinder is 1.5-3mm.
Because big electric current large capcity breaker, its capacity is big more, and the heat that is sent during work is big more; Though cooling fan is installed above that; But heat is enclosed in difficult derivation the in the epoxy resin, reduces so the efficient that blower fan played is just beaten, for this reason the utility model radiator; Guide to the outside that the epoxy resin envelope is built to the heat of the inner contact contact position of vacuum bubbles; The radiating effect that so just helps cooling fan, thus the efficient of blower fan improved greatly, improved the radiating effect of large capcity breaker.
The beneficial effect of the utility model: the utility model is provided with radiator on last contact arm, improved radiating effect, thereby has improved the useful life and the security performance of great-current fixed sealed pole vacuum circuit-breaker.
Description of drawings
Below in conjunction with accompanying drawing and embodiment invention is further specified.
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation of the utility model embodiment radiator.
Among the figure: 1, housing 2, last contact arm 3, outlet copper bar 4, radiator 41, heat radiation cylinder 42, support bar.
Embodiment
According to illustrated in figures 1 and 2, embodiment states to the utility model below:
As depicted in figs. 1 and 2, a kind of radiator structure of great-current fixed sealed pole vacuum circuit-breaker comprises epoxy resins insulation housing 1 and the vacuum interrupter and the last contact arm 2 that are encapsulated in the epoxy resins insulation housing 1; Be provided with outlet copper bar 3 in the last contact arm 2, last contact arm 2 is provided with radiator 4, and 3 of radiator 4 and outlet copper bars adopt annular silver soldering welding; As shown in Figure 2, radiator 4 comprises three concentric heat radiation cylinders 41, and 41 of cylinders of heat radiation are provided with support bar 42; Heat radiation cylinder 41 is silver-colored evanohm; Heat radiation cylinder 41 wall thickness are 2mm, adopt the material of silver-colored evanohm, perfect heat-dissipating.
When the utility model is applied to switch cubicle; Under the effect of the induced draft fan in switch cubicle; Cold air gets in the pole, through heat dissipation channel the heat of radiator 4 is discharged rapidly outside the pole, because above-mentioned good radiator structure; Radiating and cooling is effective, thereby has improved the useful life and the security performance of pole.
Claims (4)
1. the radiator structure of a great-current fixed sealed pole vacuum circuit-breaker; Comprise epoxy resins insulation housing and the vacuum interrupter and the last contact arm that are encapsulated in the epoxy resins insulation housing; Be provided with the outlet copper bar in the last contact arm, it is characterized in that contact arm is provided with radiator, radiator is connected with the outlet copper bar.
2. the radiator structure of a kind of great-current fixed sealed pole vacuum circuit-breaker according to claim 1 is characterized in that above-mentioned radiator comprises some concentric heat radiation cylinders, is provided with support bar between the heat radiation cylinder.
3. the radiator structure of a kind of great-current fixed sealed pole vacuum circuit-breaker according to claim 2 is characterized in that above-mentioned heat radiation cylinder is silver-colored evanohm cylinder.
4. according to the radiator structure of claim 2 or 3 described a kind of great-current fixed sealed pole vacuum circuit-breakers, above-mentioned heat radiation cylinder is provided with three with one heart, and wall thickness of cylinder is 1.5-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205069255U CN202339882U (en) | 2011-12-08 | 2011-12-08 | Radiating structure of large-current fixedly-sealed pole vacuum breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205069255U CN202339882U (en) | 2011-12-08 | 2011-12-08 | Radiating structure of large-current fixedly-sealed pole vacuum breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202339882U true CN202339882U (en) | 2012-07-18 |
Family
ID=46488571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205069255U Expired - Lifetime CN202339882U (en) | 2011-12-08 | 2011-12-08 | Radiating structure of large-current fixedly-sealed pole vacuum breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202339882U (en) |
-
2011
- 2011-12-08 CN CN2011205069255U patent/CN202339882U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 324100 Zhejiang province Jiangshan City Garden Road No. 1 of the open source Patentee after: KERUN ELECTRIC POWER TECHNOLOGY CO., LTD. Address before: 324123, 27, North Road, Jiangdong District, Jiangshan Economic Development Zone, Zhejiang, Quzhou Patentee before: Zhejiang Kerun Power Equipment Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: No. 1, 324100 open source road, Jiangshan City Association of Zhejiang Province Patentee after: Co - run intelligent control Limited by Share Ltd Address before: No. 1, 324100 open source road, Jiangshan City Association of Zhejiang Province Patentee before: KERUN ELECTRIC POWER TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120718 |
|
| CX01 | Expiry of patent term |