CN106783369B - Dustproof and waterproof type solid-sealed polar pole easy to radiate heat and release and manufacturing process thereof - Google Patents
Dustproof and waterproof type solid-sealed polar pole easy to radiate heat and release and manufacturing process thereof Download PDFInfo
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- CN106783369B CN106783369B CN201710039785.7A CN201710039785A CN106783369B CN 106783369 B CN106783369 B CN 106783369B CN 201710039785 A CN201710039785 A CN 201710039785A CN 106783369 B CN106783369 B CN 106783369B
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- heat dissipation
- air duct
- dissipation cover
- insulating shell
- easy
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
-
- 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
- H01H9/52—Cooling of switch parts
-
- 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
- H01H9/52—Cooling of switch parts
- H01H2009/526—Cooling of switch parts of the high voltage switches
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention discloses a dustproof and waterproof type solid-sealed polar pole easy to radiate heat and release and a manufacturing process thereof, wherein the solid-sealed polar pole comprises a vacuum arc-extinguishing chamber (14), an insulating shell (7) is arranged outside the vacuum arc-extinguishing chamber (14), an umbrella skirt (11) is arranged in the insulating shell at the lower part of the vacuum arc-extinguishing chamber (14), and a radiating cover (1) is arranged at the top of the insulating shell; a longitudinal first air duct (9) is distributed in the insulating shell (7), a first spiral convex rib (10) is arranged on the inner wall of the first air duct (9), the upper end of the first air duct (9) is communicated with the inside of the heat dissipation cover (1), and a hollow cavity (12) connected with the umbrella skirt (11) and a second air duct (13) connected with the first air duct (9) are arranged at the bottom of the insulating shell (7); and a third air duct (4) for conducting the inside and the outside of the heat dissipation cover (1) is arranged on the heat dissipation cover (1). The invention has the characteristics of good heat dissipation effect, good insulating property, easy demoulding, dust prevention and water prevention.
Description
Technical Field
The invention relates to a solid-sealed polar pole and a manufacturing process thereof, in particular to a dustproof and waterproof solid-sealed polar pole easy to radiate heat and release a mold and a manufacturing process thereof.
Background
The solid-sealed pole is formed by simultaneously embedding conductive parts related to a Vacuum interrupter (Vacuum interrupter) and a Circuit breaker (Circuit-breaker) into solid insulating materials which are easy to cure, such as epoxy resin or thermoplastic materials, so that the whole pole of the Circuit breaker becomes an integral part.
Under the normal condition, the center distance of an upper outlet and a lower outlet of a 40.5kV solid-sealed polar pole is only 328mm, and the maximum distance is about 400 mm. However, for products with current above 3000A, because of large working current and high heat generation, heat dissipation must be considered at the upper and lower outgoing lines, i.e. a heat dissipation air duct is added; because 40.5kV products have higher voltage and require the creepage distance to be more than 810mm, the heat dissipation air duct of the products needs to take corresponding measures to solve the insulation problem.
Disclosure of Invention
The invention aims to provide a dustproof and waterproof type solid-sealed polar pole easy to radiate heat and release a mould and a manufacturing process thereof. The invention has the characteristics of good heat dissipation effect, good insulating property, easy demoulding, dust prevention and water prevention.
The technical scheme of the invention is as follows: a dustproof and waterproof type embedded pole easy to radiate heat and release comprises a vacuum arc extinguish chamber, wherein an insulating shell is arranged outside the vacuum arc extinguish chamber, an umbrella skirt is arranged in the insulating shell at the lower part of the vacuum arc extinguish chamber, and a radiating cover is arranged at the top of the insulating shell; a longitudinal first air channel is distributed in the insulating shell, a first spiral convex rib is arranged on the inner wall of the first air channel, the upper end of the first air channel is communicated with the inside of the heat dissipation cover, and a second air channel for connecting the hollow cavity of the umbrella skirt and the first air channel is arranged at the lower part of the insulating shell; and a third air duct for communicating the inside and the outside of the heat dissipation cover is arranged on the heat dissipation cover.
Aforementioned dustproof and waterproof formula of easily dispelling the heat, easily drawing of patterns seals utmost point post admittedly, the heat exchanger passes through the tenon with insulating casing and tongue and groove is connected.
The dustproof and waterproof type solid-sealed polar pole easy to radiate heat and demould is characterized in that a dustproof plate is arranged at the top of the heat radiating cover, a fourth air channel is arranged between the dustproof plate and the top of the heat radiating cover, and the third air channel is arranged at the top of the heat radiating cover and is communicated with the fourth air channel.
The dustproof and waterproof type solid-sealed polar pole easy to radiate heat and demould is characterized in that the inner wall of the radiating cover is provided with a second spiral convex rib.
The dustproof and waterproof type solid-sealed polar pole easy to radiate and demold is characterized in that the upper end of the insulating shell forms a cylinder shape along the top exceeding the vacuum arc-extinguishing chamber, the bottom of the radiating cover is provided with a clamping groove matched with the upper end of the insulating shell, and a radiating air duct which runs through the radiating cover from top to bottom is arranged on the radiating cover.
The manufacturing process of the dustproof and waterproof type solid-sealed polar pole easy to dissipate heat and release comprises the steps of fixing a vacuum arc extinguish chamber in a mold, fixing a mold core on one side of the vacuum arc extinguish chamber, injecting a plastic forming material for forming, demolding after cooling, screwing out the mold core to form a first air channel, communicating with a second air channel formed in the bottom of an insulating shell, conducting the first air channel and a hollow cavity of an umbrella skirt, and finally connecting a heat dissipation cover on the top of the insulating shell to obtain the solid-sealed polar pole.
According to the manufacturing process of the dustproof and waterproof type solid-sealed polar pole easy to radiate heat and demould, the radiating cover is connected with the insulating shell through the tenon and the tongue-and-groove.
According to the manufacturing process of the dustproof and waterproof type solid-sealed polar pole easy to dissipate heat and demould, the top end of the insulating shell extends upwards and exceeds the top end of the vacuum arc extinguish chamber, the middle of the insulating shell is a heat dissipation cavity, and the heat dissipation cover is connected to the upper end edge of the insulating shell in a clamping groove in the bottom of the heat dissipation cover in a clamping mode.
The invention has the beneficial effects that:
1. according to the invention, the hollow cavity of the umbrella skirt and the air channel inside the heat dissipation cover are communicated in the insulating shell, so that the cavity where the lower outgoing line is located and the cavity where the heat dissipation cover is located are connected into a whole, the distance of the air channel is increased, the flue effect is enhanced, the heat dissipation effect is more prominent, cold air rises from the hollow cavity in the umbrella skirt in the working process, enters the heat dissipation cover through the second air channel and the first air channel and is discharged from the third air channel, and the heat at the bottom, the middle and the top of the vacuum arc-extinguishing chamber is taken away together from bottom to top in the air flowing process, so that the heat dissipation effect is greatly improved.
2. According to the invention, the spiral convex ribs are arranged in the first air duct, so that the creepage distance in the air duct is greatly increased, and the insulation requirement of the solid-sealed polar pole is ensured.
3. The rib of the invention adopts a spiral structure, when in molding and demolding, the rib can be taken out through the rotary core, and the structure greatly increases the creepage distance in the air duct under the condition of smaller size, ensures the insulation requirement of the solid-sealed polar pole, is easy to demold and is convenient to manufacture.
4. According to the invention, the dustproof plate is arranged on the heat dissipation cover, so that dust and water can be prevented from entering the heat dissipation cover and the heat dissipation cover on the top of the solid-sealed polar pole by the dustproof plate, and the dustproof and waterproof effects are better.
5. According to the invention, the heat dissipation cover and the insulating shell are connected through the tenon tongue groove, so that the heat dissipation cover can be manufactured independently, the production is more convenient, and the production cost is reduced.
6. The invention also improves the insulating property of the heat radiating cover and is convenient for demoulding by arranging the spiral convex rib in the heat radiating cover.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a heat dissipation cover;
FIG. 3 is a schematic structural view with the heat sink removed;
FIG. 4 is a schematic view of a portion of a second air duct;
fig. 5 is a schematic structural view of another heat dissipation cover.
Description of reference numerals: 1-a heat dissipation cover, 2-a dust guard, 3-a fourth air duct, 4-a third air duct, 5-a tenon, 6-a second spiral convex rib, 7-an insulating shell, 8-a tongue-and-groove, 9-a first air duct, 10-a first spiral convex rib, 11-an umbrella skirt, 12-a hollow cavity, 13-a second air duct, 14-a vacuum arc extinguish chamber, 15-a heat dissipation air duct and 16-a clamping groove.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
The embodiment of the invention comprises the following steps:
example 1: a dustproof and waterproof type solid-sealed pole easy to dissipate heat and release is disclosed, as shown in attached figures 1-4, and comprises a vacuum arc extinguish chamber 14, an insulating shell 7 is arranged outside the vacuum arc extinguish chamber 14, an umbrella skirt 11 is arranged at the bottom of the vacuum arc extinguish chamber 14, and a heat dissipation cover 1 is arranged at the top of the vacuum arc extinguish chamber 14 (the heat dissipation cover 1 is barrel-shaped and surrounds the heat dissipation cover at the top of the vacuum arc extinguish chamber 14); longitudinal first air ducts 9 are distributed in the insulating shell 7 (the first air ducts 9 are distributed along the circumferential direction of the insulating shell 7, and the number of the first air ducts 9 is set according to the heat dissipation requirement), first spiral convex ribs 10 are arranged on the inner wall of the first air ducts 9, the upper ends of the first air ducts 9 are communicated with the inside of the heat dissipation cover 1, and a hollow cavity 12 connected with an umbrella skirt 11 and a second air duct 13 connected with the first air ducts 9 are arranged at the bottom of the insulating shell 7; and a third air duct 4 for conducting the inside and the outside of the heat dissipation cover 1 is arranged on the heat dissipation cover 1.
The top of heat dissipation cover 1 is equipped with dust guard 2, is equipped with fourth wind channel 3 between dust guard 2 and the top of heat dissipation cover 1, third wind channel 4 is located the top of heat dissipation cover 1 and is switched on with fourth wind channel 3.
And a second spiral convex rib 6 is arranged on the inner wall of the heat dissipation cover 1.
Example 2: the manufacturing process of the dustproof and waterproof type solid-sealed polar pole easy to dissipate heat and demould is characterized in that a vacuum arc extinguish chamber 14 is fixed in a mould, a mould core is fixed on one side of the vacuum arc extinguish chamber 14, a material (such as epoxy resin) is injected for forming through a conventional process, demoulding is carried out after cooling, the mould core is screwed out to form a first air duct 9, the first air duct 9 is communicated with a second air duct 13 formed at the bottom of an insulating shell 7, a hollow cavity 12 of the first air duct 9 and an umbrella skirt 11 is conducted, and finally the heat dissipation cover 1 is connected to the top of the insulating shell 7 to obtain the solid-sealed polar pole.
The heat dissipation cover 1 is connected with the insulating shell 7 through the tenon 5 and the tenon groove 8.
When the umbrella skirt works, cold air enters from the hollow cavity 12 of the umbrella skirt 11, takes away heat around the lower outgoing line and the vacuum arc extinguish chamber 14 from bottom to top, and is discharged from the third air duct 4 to dissipate heat.
Example 3: the difference between this embodiment and embodiment 1 lies in that the top that exceeds vacuum interrupter 14 is followed to the upper end of insulating housing 7 forms the cylindric, the bottom of heat exchanger 1 is equipped with along complex draw-in groove 16 with the upper end of insulating housing 7, is equipped with the heat dissipation wind channel 15 that runs through from top to bottom on the heat exchanger 1, and this structure is half open-ended structure, and the radiating efficiency is higher, and the effect is better, but dustproof effect is poor than embodiment 1's dustproof effect.
Example 4: the manufacturing process of the dustproof and waterproof type solid-sealed pole easy to dissipate heat and demould in embodiment 3 is different from the manufacturing process of the dustproof and waterproof type solid-sealed pole in embodiment 2 in that the top end of the insulating shell 7 extends upwards and exceeds the top end of the vacuum arc-extinguishing chamber 14, the middle of the insulating shell is a heat dissipation cavity, and the heat dissipation cover 1 is clamped at the upper end edge of the insulating shell 7 through a clamping groove 16 arranged at the bottom of the heat dissipation cover.
Claims (6)
1. The utility model provides an easy dustproof and waterproof formula of heat dissipation, easy demoulding seals utmost point post admittedly which characterized in that: the vacuum heat-dissipating device comprises a vacuum arc-extinguishing chamber (14), an insulating shell (7) is arranged outside the vacuum arc-extinguishing chamber (14), an umbrella skirt (11) is arranged in the insulating shell at the lower part of the vacuum arc-extinguishing chamber (14), and a heat-dissipating cover (1) is arranged at the top of the vacuum arc-extinguishing chamber; a longitudinal first air duct (9) is distributed in the insulating shell (7), a first spiral convex rib (10) is arranged on the inner wall of the first air duct (9), the upper end of the first air duct (9) is communicated with the inside of the heat dissipation cover (1), and a hollow cavity (12) connected with the umbrella skirt (11) and a second air duct (13) connected with the first air duct (9) are arranged at the bottom of the insulating shell (7); a third air duct (4) for conducting the inside and the outside of the heat dissipation cover (1) is arranged on the heat dissipation cover (1); the top of the heat dissipation cover (1) is provided with a dust guard (2), a fourth air channel (3) is arranged between the dust guard (2) and the top of the heat dissipation cover (1), and the third air channel (4) is arranged at the top of the heat dissipation cover (1) and communicated with the fourth air channel (3); and a second spiral convex rib (6) is arranged on the inner wall of the heat dissipation cover (1).
2. The easy-to-radiate and easy-to-demold dust-proof and waterproof solid-sealed pole column of claim 1, which is characterized in that: the heat dissipation cover (1) is connected with the insulating shell (7) through the tenon (5) and the tongue groove (8).
3. The easy-to-radiate and easy-to-demold dust-proof and waterproof solid-sealed pole column of claim 1, which is characterized in that: the upper end of insulating housing (7) is along surpassing the top formation cylindric of vacuum interrupter (14), the bottom of heat dissipation cover (1) be equipped with the upper end of insulating housing (7) along complex draw-in groove (16), be equipped with the heat dissipation wind channel (15) that run through from top to bottom on heat dissipation cover (1).
4. The manufacturing process of the dust-proof and waterproof type solid-sealed pole terminal easy to dissipate heat and demould according to any one of claims 1 to 3 is characterized in that: fixing a vacuum arc-extinguishing chamber (14) in a mould, placing a mould core at one side of the vacuum arc-extinguishing chamber (14), injecting a plastic material for curing and forming, cooling and demoulding, screwing out the mould core to form a first air duct (9), then arranging a second air duct (13) which conducts the first air duct (9) and a hollow cavity (12) in an umbrella skirt (11) at the bottom of an insulating shell (7), and finally connecting a heat dissipation cover (1) at the top of the insulating shell (7) to obtain the solid-sealed polar pole.
5. The manufacturing process of the dust-proof and waterproof type solid-sealed pole terminal easy to dissipate heat and demould according to claim 4, is characterized in that: the heat dissipation cover (1) is connected with the insulating shell (7) through the tenon (5) and the tenon groove (8).
6. The manufacturing process of the dust-proof and waterproof type solid-sealed pole terminal easy to dissipate heat and demould according to claim 4, is characterized in that: the top of insulating housing (7) upwards extends and surpasss the top of vacuum interrupter (14), and the centre is the heat dissipation chamber, heat dissipation cover (1) is along the upper end of insulating housing (7) through draw-in groove (16) joint of locating its bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039785.7A CN106783369B (en) | 2017-01-19 | 2017-01-19 | Dustproof and waterproof type solid-sealed polar pole easy to radiate heat and release and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039785.7A CN106783369B (en) | 2017-01-19 | 2017-01-19 | Dustproof and waterproof type solid-sealed polar pole easy to radiate heat and release and manufacturing process thereof |
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| Publication Number | Publication Date |
|---|---|
| CN106783369A CN106783369A (en) | 2017-05-31 |
| CN106783369B true CN106783369B (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710039785.7A Active CN106783369B (en) | 2017-01-19 | 2017-01-19 | Dustproof and waterproof type solid-sealed polar pole easy to radiate heat and release and manufacturing process thereof |
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| CN (1) | CN106783369B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706040B (en) * | 2017-09-19 | 2019-09-24 | 霍立克电气有限公司 | A kind of pole and its production method |
| CN108597946A (en) * | 2018-06-25 | 2018-09-28 | 宝鸡市晨光真空电器股份有限公司 | Heat dissipation type solid-sealed polar pole |
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| CN201522960U (en) * | 2009-10-21 | 2010-07-07 | 北海银河开关设备有限公司 | Indoor high-voltage vacuum circuit breaker totally enclosed solid insulating post with radiator hood |
| CN204088175U (en) * | 2014-07-31 | 2015-01-07 | 中国振华电子集团宇光电工有限公司（国营第七七一厂） | A kind of radiator structure of pole |
| CN204130435U (en) * | 2014-10-27 | 2015-01-28 | 常州森源力拓开关有限公司 | Big current self-cooled vacuum breaker pole |
| CN205828208U (en) * | 2016-06-02 | 2016-12-21 | 长沙弘瑞电气设备有限公司 | A kind of great-current fixed sealed pole optimizes temperature rise device |
| CN206412279U (en) * | 2017-01-19 | 2017-08-15 | 中国振华电子集团宇光电工有限公司（国营第七七一厂） | A kind of dustproof and waterproof formula pole of easy heat radiation, easy mold release |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201876172U (en) * | 2010-11-10 | 2011-06-22 | 北京派捷暖通环境工程技术有限公司 | In-tube intensified heating radiator |
| CN205428823U (en) * | 2016-03-30 | 2016-08-03 | 江苏宏达电气有限公司 | Take outdoor interchange high pressure permanent magnet vacuum circuit breaker of manual combined floodgate |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201522960U (en) * | 2009-10-21 | 2010-07-07 | 北海银河开关设备有限公司 | Indoor high-voltage vacuum circuit breaker totally enclosed solid insulating post with radiator hood |
| CN204088175U (en) * | 2014-07-31 | 2015-01-07 | 中国振华电子集团宇光电工有限公司（国营第七七一厂） | A kind of radiator structure of pole |
| CN204130435U (en) * | 2014-10-27 | 2015-01-28 | 常州森源力拓开关有限公司 | Big current self-cooled vacuum breaker pole |
| CN205828208U (en) * | 2016-06-02 | 2016-12-21 | 长沙弘瑞电气设备有限公司 | A kind of great-current fixed sealed pole optimizes temperature rise device |
| CN206412279U (en) * | 2017-01-19 | 2017-08-15 | 中国振华电子集团宇光电工有限公司（国营第七七一厂） | A kind of dustproof and waterproof formula pole of easy heat radiation, easy mold release |
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| CN106783369A (en) | 2017-05-31 |
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