CN101877288B - Preparation method of vacuum arc extinction terminal post for high-voltage vacuum breaker - Google Patents
Preparation method of vacuum arc extinction terminal post for high-voltage vacuum breaker Download PDFInfo
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- CN101877288B CN101877288B CN 201010148259 CN201010148259A CN101877288B CN 101877288 B CN101877288 B CN 101877288B CN 201010148259 CN201010148259 CN 201010148259 CN 201010148259 A CN201010148259 A CN 201010148259A CN 101877288 B CN101877288 B CN 101877288B
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- insulating layer
- insulation crust
- flexible insulating
- vacuum
- arc extinction
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Abstract
The invention discloses a vacuum arc extinction terminal post for a high-voltage vacuum breaker and a preparation method thereof. The terminal comprises a vacuum arc extinction chamber and an insulating housing; the outer wall of the vacuum arc extinction chamber is provided with a flexible insulating layer, and the outer wall of the flexible insulating layer is coated with grease; the insulating housing is sleeved on the flexible insulating layer, and the outer diameter of the flexible insulating layer is larger than the inner diameter of a hole cavity where the insulating housing is matched with the flexible insulating layer. The preparation method comprises the following steps: 1, preparing the insulating housing, the vacuum arc extinction chamber, an upper connection terminal and a lower connection terminal; 2, preparing a flexible insulating layer on the outer wall of the vacuum arc extinction chamber and ensuring the outer diameter of the flexible insulating layer larger than the inner diameter of the hole cavity where the insulating housing is matched with the flexible insulating layer; 3, coating the lubricating grease on the outer wall of the flexible insulating layer; 4, pressing the vacuum arc extinction chamber into the insulating housing; and 5, installing the upper connection terminal and the lower connection terminal on the insulating housing to obtain the finished product of the terminal post. The invention effectively reduces the product manufacturing and maintaining cost and greatly improves the production efficiency.
Description
Technical field
The invention belongs to high-voltage switch gear structure-design technique field, be specifically related to a kind of vacuum arc extinction terminal post for high-voltage vacuum breaker and preparation method thereof.
Background technology
Traditional vacuum arc extinction terminal post for high-voltage vacuum breaker, vacuum interrupter is fixed on fixing means in the insulation crust, the solid encapsulation methods of injection moulding that adopt more, specifically the insulation crust mould is enclosed within on the vacuum interrupter, leave the gap between described insulation crust mould inner wall and the vacuum extinction chamber outer wall, then injection ring epoxy resins or silicon rubber in this gap namely can be used as finished product behind its cooling curing.
Because the globality of existing solid seal structure, in the injection moulding process of producing, if when the mass defect of unrepairable appears in insulation crust, will cause whole pole to comprise that the parts such as vacuum interrupter all scrap; In addition, in long-term the use, if vacuum interrupter generation gas leak phenomenon just must be changed whole pole, thereby increase maintenance cost.Therefore, existing high-pressure vacuum breaker exists manufacturing, maintenance and use shortcoming with high costs with pole.
Summary of the invention
The purpose of this invention is to provide the lower vacuum arc extinction terminal post for high-voltage vacuum breaker of a kind of manufacturing cost.
Another object of the present invention provides a kind of preparation method of lower-cost vacuum arc extinction terminal post for high-voltage vacuum breaker.
The technical scheme that realizes first purpose of the present invention is: a kind of vacuum arc extinction terminal post for high-voltage vacuum breaker, comprise vacuum interrupter, be set in insulation crust on the vacuum interrupter, be arranged on insulation crust top upper connecting terminal, be arranged on the lower connecting terminal at insulation crust middle part; Described upper connecting terminal is electrically connected with the fixed contact of vacuum interrupter, and described lower connecting terminal is electrically connected with the moving contact of vacuum interrupter; The outer wall of described vacuum interrupter is provided with flexible insulating layer, be coated with lubricant grease on the described flexible insulating layer outer wall, described insulation crust is set on the flexible insulating layer that is coated with lubricant grease, and the external diameter of described flexible insulating layer greater than described insulation crust match with it the place vestibule internal diameter.
In the such scheme, the outer wall of described insulation crust is provided with the anti-tracking full skirt.
In the such scheme, the external diameter of described flexible insulating layer is greater than match with it 1 millimeter to 5 millimeters of internal diameter of place's vestibule of described insulation crust, preferred 1 millimeter to 3 millimeters.
In the such scheme, described insulation crust adopts the unsaturated-resin glass fibre to strengthen sheet molding compound and makes.
The technical scheme that realizes second purpose of the present invention is: a kind of preparation method of vacuum arc extinction terminal post for high-voltage vacuum breaker may further comprise the steps:
1. injection mo(u)lding or compressing preparation insulation crust are stand-by; It is stand-by to get vacuum interrupter, upper connecting terminal, lower connecting terminal ready;
2. at vacuum extinction chamber outer wall preparation one flexible insulating layer, and the external diameter that makes described flexible insulating layer 1 millimeter to 5 millimeters of internal diameter matching with it and locate vestibule greater than described insulation crust, preferred 1 millimeter to 3 millimeters;
3. the flexible insulating layer outer wall at vacuum interrupter applies one deck lubricant grease;
The vacuum interrupter with flexible insulating layer that 4. will scribble lubricant grease is pressed in the insulation crust;
5. upper connecting terminal with lower connecting terminal is fastening is installed on the insulation crust, thereby obtain the finished product vacuum arc extinction terminal post for high-voltage vacuum breaker.
In the such scheme, above-mentioned steps 4. in, before the vacuum interrupter with flexible insulating layer that will scribble lubricant grease is pressed in the insulation crust, guarantee that the temperature of described insulation crust exceeds 50 degrees centigrade at least than described temperature with vacuum interrupter of flexible insulating layer.
In the such scheme, above-mentioned steps 2. in, after the vacuum extinction chamber outer wall prepares flexible insulating layer, it is inserted in the freezer, make its temperature be reduced to subzero 30 degrees centigrade to zero degrees celsius; Above-mentioned steps 4. in, before the vacuum interrupter with flexible insulating layer that will scribble lubricant grease is pressed in the insulation crust, first insulation crust is put into baking oven, make its temperature be increased to 50 degrees centigrade to 60 degrees centigrade.
In the such scheme, above-mentioned steps 5. in, also compressing on described insulation crust outer wall or injection mo(u)lding prepares the anti-tracking full skirt; Described insulation crust adopts the unsaturated-resin glass fibre to strengthen sheet molding compound and makes.
The unsaturated-resin glass fibre strengthens sheet molding compound, and English name is Sheet molding compound, referred to as SMC; The domestic unsaturated-resin glass fibre that is called strengthens sheet molding compound, and primary raw material is by GF (special yarn), UP (unsaturated-resin), low shrinkage additive, and MD (filler) and various auxiliary agent form.
The present invention has positive effect:
(1) product of the present invention has changed traditional solid envelope integral structure, with vacuum interrupter as a detachable member independently, it closely is pressed together in the vestibule of insulation crust, and can be when needed, vacuum interrupter is taken out from the insulation crust vestibule, thereby avoided make and maintenance process in, the scrapping of the whole pole that causes owing to the infringement of Local Members, thus reduced manufacturing and maintenance cost.
(2) the inventive method is when the assembling vacuum arc extinction terminal post, has simple and easy to do advantage, utilize the yielding performance of elastic insulating layer on the vacuum extinction chamber outer wall, add the greasy property of lubricant grease, so that installing and fixing of insulation crust and vacuum interrupter is simple and efficient, and has comparatively stable adhesion.
(3) in the inventive method, when assembling insulation crust and vacuum interrupter, can adopt further optimization method: above-mentioned steps 2. in, after the vacuum extinction chamber outer wall prepares flexible insulating layer, it is inserted in the freezer, make its temperature be reduced to subzero 30 degrees centigrade to zero degrees celsius; Above-mentioned steps 4. in, before the vacuum interrupter with flexible insulating layer that will scribble lubricant grease is pressed in the insulation crust, first insulation crust is put into baking oven, make its temperature be increased to 50 degrees centigrade to 60 degrees centigrade; This assemble method takes full advantage of the phenomenon of expanding with heat and contract with cold, so that vacuum interrupter is when compressing into the insulation crust vestibule, suffered resistance is very little, almost can ignore, need not external press device, after it is cooled to room temperature, can obtain preferably finished product of bond strength, greatly improved production efficiency.
Description of drawings
A kind of high-pressure vacuum breaker of Fig. 1 for adopting product of the present invention to make;
Fig. 2 is a kind of structural representation of insulation crust and vacuum interrupter assembling procedure in the high-pressure vacuum breaker shown in Figure 1.
Embodiment
(embodiment 1, vacuum arc extinction terminal post for high-voltage vacuum breaker)
Fig. 1 is a kind of high-pressure vacuum breaker that adopts product of the present invention to make, and has shown a kind of embodiment of product of the present invention.
Present embodiment is a kind of vacuum arc extinction terminal post for high-voltage vacuum breaker, as shown in Figure 1, comprise vacuum interrupter 1, be set in employing unsaturated-resin glass fibre on the vacuum interrupter 1 and strengthen sheet molding compound (Sheet moldingcompound is referred to as SMC; The domestic unsaturated-resin glass fibre that is called strengthens sheet molding compound, and primary raw material is by GF (special yarn), UP (unsaturated-resin), low shrinkage additive, and MD (filler) and various auxiliary agent form.) insulation crust 2, the upper connecting terminal 3 that is arranged on insulation crust 2 tops of making, the lower connecting terminal 4 that is arranged on insulation crust 2 middle parts; Described upper connecting terminal 3 is electrically connected with the fixed contact 5 of vacuum interrupter 1, and described lower connecting terminal 4 is electrically connected with the moving contact 6 of vacuum interrupter 1; The outer wall of described vacuum interrupter 1 is provided with flexible insulating layer 7, be coated with lubricant grease 8 on described flexible insulating layer 7 outer walls, described insulation crust 2 is set on the flexible insulating layer 7 that is coated with lubricant grease 8, and the external diameter of described flexible insulating layer 7 matches with it greater than described insulation crust 2 and locates the internal diameter of vestibule, in concrete practice, the external diameter of described flexible insulating layer 7 is greater than match with it 1 millimeter to 5 millimeters of internal diameter of place's vestibule of described insulation crust 2, further preferably 1 millimeter to 3 millimeters, in the present embodiment, the external diameter of described flexible insulating layer 7 is greater than match with it 2.5 millimeters of internal diameters of place's vestibule of described insulation crust 2.
The outer wall of described insulation crust 2 is provided with silicon rubber anti-tracking full skirt 9.
Present embodiment has changed traditional solid envelope integral structure, with vacuum interrupter as a detachable member independently, it closely is pressed together in the vestibule of insulation crust, and can be when needed, vacuum interrupter is taken out from the insulation crust vestibule, thereby avoided make and maintenance process in, the scrapping of the whole pole that causes owing to the infringement of Local Members, thus reduced manufacturing and maintenance cost.
(preparation method of embodiment 2, vacuum arc extinction terminal post for high-voltage vacuum breaker)
Fig. 2 is a kind of structural representation of insulation crust and vacuum interrupter assembling procedure in the high-pressure vacuum breaker shown in Figure 1, has shown a kind of embodiment of the inventive method.
Present embodiment is a kind of preparation method of embodiment 1 described vacuum arc extinction terminal post for high-voltage vacuum breaker, may further comprise the steps:
1. injection mo(u)lding or compressing preparation insulation crust 2 are stand-by, and described insulation crust 2 adopts the unsaturated-resin glass fibre to strengthen sheet molding compound and makes; It is stand-by to get in addition vacuum interrupter 1, upper connecting terminal 3, lower connecting terminal 4 ready;
2. by injection molding at vacuum interrupter 1 outer wall preparation one flexible insulating layer 7, and the external diameter that makes described flexible insulating layer 71 millimeter to 5 millimeters of internal diameter matching with it and locate vestibule greater than described insulation crust 2; Further preferably 1 millimeter to 3 millimeters, present embodiment is 2.5 millimeters;
3. flexible insulating layer 7 outer walls at vacuum interrupter 1 apply one deck lubricant grease 8;
The vacuum interrupter with flexible insulating layer 71 that 4. will scribble lubricant grease 8 is pressed in the insulation crust 2 along direction shown in the arrow among Fig. 2;
5. upper connecting terminal 3 and lower connecting terminal 4 fastening being installed on the insulation crust 2, and compressing or injection mo(u)lding prepares anti-tracking full skirt 9 on described insulation crust 2 outer walls, thereby obtains the finished product vacuum arc extinction terminal post for high-voltage vacuum breaker.
The present embodiment method is when the assembling vacuum arc extinction terminal post, has simple and easy to do advantage, utilize the yielding performance of elastic insulating layer on the vacuum extinction chamber outer wall, add the greasy property of lubricant grease, so that installing and fixing of insulation crust and vacuum interrupter is simple and efficient, and has comparatively stable adhesion.
(preparation method of embodiment 3, vacuum arc extinction terminal post for high-voltage vacuum breaker)
Present embodiment is substantially the same manner as Example 1, and difference is: step 2. in, after vacuum interrupter 1 outer wall prepares flexible insulating layer 7, it is inserted in the freezer, make its temperature be reduced to subzero 30 degrees centigrade to subzero 10 degrees centigrade; Present embodiment is that temperature is down to subzero 20 degrees centigrade;
Step 4. in, before the vacuum interrupter with flexible insulating layer 71 that will scribble lubricant grease 8 is pressed in the insulation crust 2, first insulation crust 2 is put into baking oven, make its temperature be increased to 50 degrees centigrade to 60 degrees centigrade, present embodiment is to make its temperature be increased to 55 degrees centigrade.
The present embodiment method takes full advantage of the phenomenon of expanding with heat and contract with cold, so that vacuum interrupter is when compressing into the insulation crust vestibule, suffered resistance is very little, almost can ignore, need not external press device, after it is cooled to room temperature, can obtain preferably finished product of bond strength, greatly improved production efficiency.
Obviously, the above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all execution modes exhaustive.And these belong to apparent variation or the change that connotation of the present invention extends out and still belong to protection scope of the present invention.
Claims (4)
1. the preparation method of a vacuum arc extinction terminal post for high-voltage vacuum breaker may further comprise the steps:
1. injection mo(u)lding or compressing preparation insulation crust (2) are stand-by; It is stand-by to get vacuum interrupter (1), upper connecting terminal (3), lower connecting terminal (4) ready;
2. at vacuum interrupter (1) outer wall preparation one flexible insulating layer (7), and the external diameter that makes described flexible insulating layer (7) 1 millimeter to 5 millimeters of internal diameter matching with it and locate vestibule greater than described insulation crust (2);
3. flexible insulating layer (7) outer wall in vacuum interrupter (1) applies one deck lubricant grease (8);
The vacuum interrupter with flexible insulating layer (7) (1) that 4. will scribble lubricant grease (8) is pressed in the insulation crust (2); Before the vacuum interrupter with flexible insulating layer (7) (1) that will scribble lubricant grease (8) is pressed in the insulation crust (2), guarantee that the temperature of described insulation crust exceeds 50 degrees centigrade at least than described temperature with vacuum interrupter of flexible insulating layer;
5. upper connecting terminal (3) with lower connecting terminal (4) is fastening is installed on the insulation crust (2), thereby obtain the finished product vacuum arc extinction terminal post for high-voltage vacuum breaker.
2. the preparation method of vacuum arc extinction terminal post for high-voltage vacuum breaker according to claim 1 is characterized in that:
Above-mentioned steps 2. in, after vacuum interrupter (1) outer wall prepares flexible insulating layer (7), it is inserted in the freezer, make its temperature be reduced to subzero 30 degrees centigrade to zero degrees celsius;
Above-mentioned steps 4. in, before the vacuum interrupter with flexible insulating layer (7) (1) that will scribble lubricant grease (8) is pressed in the insulation crust (2), first insulation crust (2) is put into baking oven, make its temperature be increased to 50 degrees centigrade to 60 degrees centigrade.
3. the preparation method of vacuum arc extinction terminal post for high-voltage vacuum breaker according to claim 1 is characterized in that: above-mentioned steps 5. in, also compressing on described insulation crust (2) outer wall or injection mo(u)lding prepares anti-tracking full skirt (9); Described insulation crust (2) adopts the unsaturated-resin glass fibre to strengthen sheet molding compound and makes.
4. the preparation method of vacuum arc extinction terminal post for high-voltage vacuum breaker according to claim 1 is characterized in that: the external diameter of described flexible insulating layer (7) is greater than match with it 1 millimeter to 3 millimeters of internal diameter of place's vestibule of described insulation crust (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010148259 CN101877288B (en) | 2010-04-16 | 2010-04-16 | Preparation method of vacuum arc extinction terminal post for high-voltage vacuum breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010148259 CN101877288B (en) | 2010-04-16 | 2010-04-16 | Preparation method of vacuum arc extinction terminal post for high-voltage vacuum breaker |
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| CN101877288A CN101877288A (en) | 2010-11-03 |
| CN101877288B true CN101877288B (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010148259 Expired - Fee Related CN101877288B (en) | 2010-04-16 | 2010-04-16 | Preparation method of vacuum arc extinction terminal post for high-voltage vacuum breaker |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105845490A (en) * | 2016-06-09 | 2016-08-10 | 福建省三星电气股份有限公司 | Vacuum circuit breaker and preparation method thereof |
| CN111129994B (en) * | 2020-01-03 | 2021-05-04 | 北京中车赛德铁道电气科技有限公司 | Method for separating vacuum package and insulator by vacuum circuit breaker |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2309615Y (en) * | 1997-03-28 | 1999-03-03 | 广东珠江开关厂 | Insulating bush of vacuum circuit breaker |
| CN2715323Y (en) * | 2004-05-10 | 2005-08-03 | 王国建 | Seal housing of vacuum arc extinguish chamber |
| CN101361151A (en) * | 2005-11-14 | 2009-02-04 | 库帕技术公司 | Vacuum switchgear assembly, system and method |
-
2010
- 2010-04-16 CN CN 201010148259 patent/CN101877288B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2309615Y (en) * | 1997-03-28 | 1999-03-03 | 广东珠江开关厂 | Insulating bush of vacuum circuit breaker |
| CN2715323Y (en) * | 2004-05-10 | 2005-08-03 | 王国建 | Seal housing of vacuum arc extinguish chamber |
| CN101361151A (en) * | 2005-11-14 | 2009-02-04 | 库帕技术公司 | Vacuum switchgear assembly, system and method |
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| CN101877288A (en) | 2010-11-03 |
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Owner name: HONGXIU ELECTRIC CO., LTD. Free format text: FORMER OWNER: ZHENG WENXIU Effective date: 20121116 |
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Effective date of registration: 20121116 Address after: 325604, Zhenxing Road, Xinguang Industrial Zone, Zhejiang, Liushi, 8 Applicant after: Hongxiu Electric Co., Ltd. Address before: 325604, Zhenxing Road, Xinguang Industrial Zone, Yueqing, Zhejiang, Liushi 8, China Applicant before: Zheng Wenxiu |
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