CN2697798Y - Insulation sleeve for leading wire of electric appliance - Google Patents
Insulation sleeve for leading wire of electric appliance Download PDFInfo
- Publication number
- CN2697798Y CN2697798Y CN 200420041759 CN200420041759U CN2697798Y CN 2697798 Y CN2697798 Y CN 2697798Y CN 200420041759 CN200420041759 CN 200420041759 CN 200420041759 U CN200420041759 U CN 200420041759U CN 2697798 Y CN2697798 Y CN 2697798Y
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- CN
- China
- Prior art keywords
- porcelain bushing
- sealing ring
- flange
- end sealing
- metal cap
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- Expired - Fee Related
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Abstract
The utility model provides an insulation sleeve for the leading wire of an electric appliance. The lower end of the guide stem of the connecting line is provided with a flange the outside of which is sheathed with a metal cover. A sealing ring is arranged between the flange of the lower end of the guide stem of the connecting line and the upper end face of a porcelain sleeve pipe. An adhesive agent is filled in the slit between the upper end face of the flange and the porcelain sleeve pipe, and the sealing ring. The guide stem of the connecting line or the metal cover is provided with a sealing shield which is inserted in the corresponding recess of the upper end of the porcelain sleeve pipe. The lower part of the porcelain sleeve pipe is sheathed with a flange sleeve the inner surface shape of which is corresponding to the shape of the outside of the lower end of the porcelain sleeve pipe. The flange sleeve is inserted on the pipe neck of the lower part of the porcelain sleeve pipe. The sealing ring is provided and the adhesive agent id filled at the binding portion of the flange sleeve and the porcelain sleeve pipe. The utility model solves the technical problems of unreliable sealing performance in the background technique, poor mechanical strength and complicated processing technology, and has a compact structure, convenient processing, short production period, low cost, harmless working procedure and no pollution.
Description
Technical field
The utility model relates to a kind of electrical equipment that is used for all kinds of oil immersed types, gas-filled type, as the sealing and the mechanical fasteners of electrical equipment extraction tubes such as capacitor, discharge coil, promptly relates to a kind of fixture wire insulating sleeve.
Background technology
Existing oil immersed type, gas-filled type electrical equipment leads component mainly contain following several:
A kind of is to adopt sleeve pipe to join the hermetically-sealed construction that rubber washer is dressed up with bolted, and this kind structure is also referred to as thimble assembly, is prone to the loosening phenomenon of guide rod in the use, and the fastenings in the lid often influences electric insulation, and is not suitable for high-voltage applications.
A kind of fixture wire insulating sleeve, the method for the silver-plated soldering again of sintering flange cover is dressed up behind the employing porcelain bushing surface suitable position coating silver paste.Though its structure is compact, silver ink firing method complex process, the production cycle is long, and cost is higher.In addition, because silver layer and porcelain surface adhesion are limited, be again to adopt soldering, so have sealing property and the relatively poor shortcoming of mechanical strength.
A kind of fixture wire insulating sleeve adopts behind the suitable position nickel plating-copper of porcelain bushing surface the method for soldering flange cover to dress up again.Though on this structural manufacturing process than previous crops improvement, cost is lower, its sealing property and mechanical strength are still suitable with the silver ink firing method.Exist the production cycle longer in addition, electroplating technology is difficult for grasping and electroplate liquid brings environmental pollution problems.
Summary of the invention
It is unreliable that the utility model has solved in the background technology sealing, and mechanical strength is relatively poor, processing technology complicated technology problem.
Technical solution of the present utility model is:
A kind of fixture wire insulating sleeve, comprise porcelain bushing 4, flange cover 5, lower end sealing ring 6, wiring guide rod 1, upper end sealing ring 2, metal cap 3 and lead-in wire 7, its special character is: the flange 102 of described wiring guide rod 1 lower end and 401 of the upper surfaces of porcelain bushing 4 are provided with upper end sealing ring 2, described flange 102, all be filled with adhesive in the upper surface 401 of porcelain bushing 4 and the slit between the upper end sealing ring 2 and in the slit of metal cap 3 and porcelain bushing 4, the bottom of described porcelain bushing 4 is with inner surface and the corresponding flange cover 5 of porcelain bushing 4 lower end external shape, described flange cover 5 is embedded in the lower, neck end 404 of porcelain bushing 4, be provided with lower end sealing ring 6 between the binding site of described flange cover 5 and porcelain bushing 4, the lower, neck end 404 of described porcelain bushing 4, be filled with adhesive between flange cover 5 and the lower end sealing ring 6, described wiring guide rod 1 and metal cap 3, metal cap 3 is with porcelain bushing 4 fixedlys connected.
The material of above-mentioned upper end sealing ring 2 and lower end sealing ring 6 can adopt acrylonitrile-butadiene rubber, silicon rubber, fluorubber or ethylene-propylene diene copolymer etc.
Above-mentioned adhesive can adopt polyurethanes, epoxy resin or organic siliconresin class etc.
Above-mentioned metal cap 3 and porcelain bushing 4 are to fixedly connected by being arranged on backstop 103 and porcelain bushing 4 upper surfaces 401 on wiring guide rod 1 lower surface with it the groove 402 that scarf mutually closes; Above-mentioned metal cap 3 and porcelain bushing 4 also can be by being arranged at metal cap 3 all sides or end backstop 103 and porcelain bushing 4 upper surfaces, 401 all sides or the end with it mutually the groove 402 that closes of scarf fixedly connected; Above-mentioned backstop 103 and groove 402 can correspondingly be got one, two or more respectively, are advisable to get three or four.
The lower edge 301 of metal cap 3 is the tight fit of buckle with the upper end neck 403 of porcelain bushing 4; Above-mentioned flange cover 5 also is the tight fit of buckle with the lower, neck end 404 of porcelain bushing 4.
Above-mentioned wiring guide rod 1 is to be connected to suitable by its inner blind hole 101 and lead-in wire 7 solderings.
Upper end sealing ring 2 and lower end sealing ring 6 can be the packing ring of " O " type or square-section.
The utlity model has following advantage:
1. the utility model adopts improved O-ring seal, fills adhesive and the fastening and sealing through the roll-forming realization of the fastening accessory of metal, its mechanical strength height, and sealing property is reliable;
2. compact overall structure, cost is lower;
3. securing member does not have influence to electric insulation;
4. high and low pressure electrical equipment all is suitable for;
5. easy making process is with short production cycle;
6. processing technology does not have harm to human body and environment.
The explanation of accompanying drawing drawing
The overall structure schematic diagram of Fig. 1 the utility model one embodiment;
The structural representation of Fig. 2,3 the utility model wiring guide rods, one embodiment;
The structural representation of Fig. 4,5 the utility model metal caps, one embodiment;
Fig. 6,7 the utility model flanges overlap the structural representation of an embodiment;
The structural representation of Fig. 8,9 the utility model porcelain bushings, one embodiment.
Drawing reference numeral explanation: 1-wiring guide rod; 2-upper end sealing ring; The 3-metal cap; The 4-porcelain bushing; 5-flange cover; 6-lower end sealing ring; The 7-lead-in wire; The 101-blind hole; The 102-flange; 103-backstop; The lower edge of 301-metal cap; The upper surface of 401-porcelain bushing; The 402-groove; The upper end neck of 403-porcelain bushing; The lower, neck end of 404-porcelain bushing; The neck of 501-flange cover.
Embodiment
Referring to Fig. 1, the utility model comprises porcelain bushing 4, flange cover 5, lower end sealing ring 6, wiring guide rod 1, upper end sealing ring 2, metal cap 3 and goes between 7 etc.Wiring guide rod 1 is provided with backstop 103, sees Fig. 2,3.
The upper and lower buckle hermetically-sealed construction that is of the present utility model.Flange 102 outsides are with metal cap 3, see Fig. 4,5, and 401 of the upper surfaces of flange 102 and porcelain bushing 4 are provided with upper end sealing ring 2; Be filled with adhesive in the upper surface 401 of flange 102, porcelain bushing 4 and the slit between the sealing ring 2; The backstop 103 of the lower end of wiring guide rod 1 is embedded in porcelain bushing 4 upper end corresponding sites, as inside, outside or end face.Groove 402 is seen Fig. 8; Porcelain bushing 4 bottoms are with inner surface and the corresponding flange cover 5 of porcelain bushing 4 lower end necks 404 external shape, see Fig. 6,7; Flange cover 5 is embedded on the neck 404 of porcelain bushing 4 bottoms; Be provided with sealing ring 6 between the binding site of flange cover 5 and porcelain bushing 4; Be filled with adhesive between the neck 404 of porcelain bushing 4 bottoms, flange cover 5 and the lower end sealing ring 6.The backstop 103 of wiring guide rod 1 lower end and porcelain bushing 4 upper ends groove 402 correspondingly can be respectively one, or be uniform two, three or more.Backstop 103 on wiring guide rod 1 lower surface and porcelain bushing 4 upper ends groove 402 correspondingly are to adopt four to be the best respectively.Backstop 103 is mainly and strengthens the fastening of wiring guide rod 1 and porcelain bushing 4, avoids wiring guide rod 1 to rotate when tight nut, helps the location of upper end sealing ring 2 in addition.The lower edge 301 of metal cap 3 is the tight fit of buckle with the upper end neck 403 of porcelain bushing 4.Flange cover 5 is the tight fit of buckle with the lower, neck end 404 of porcelain bushing 4, and its processing all can be adopted pressure roller rolling formation mode.Wiring guide rod 1 can be connected with lead-in wire 7 by its inner blind hole 101.Upper end sealing ring 2 and lower end sealing ring 6 adopt " O " type packing ring preferable, also can adopt the packing ring of square-section.The material of upper end sealing ring 2 and lower end sealing ring 6 can adopt acrylonitrile-butadiene rubber, silicon rubber, fluorubber or ethylene-propylene diene copolymer etc.; Adhesive can adopt polyurethanes, epoxy resin or organic siliconresin class etc.
Be described in further detail of the present utility model in conjunction with the accompanying drawings: referring to Fig. 1, wiring guide rod 1 lower end is provided with the flange 102 of band backstop 103, and the outside of flange 102 is with metal cap 3, sees Fig. 4,5.The lower edge 301 of metal cap 3 is the closing in tight fit with the upper end neck of porcelain bushing 4 403, adopts the roll-in processing mode usually.The flange 102 of wiring guide rod 1 lower end and 401 of the upper surfaces of porcelain bushing 4 are provided with sealing ring 2.Be filled with adhesive in the upper surface 401 of flange, porcelain bushing 4 and the slit between the upper end sealing ring 2.Flange 102 lower ends of wiring guide rod 1 are provided with backstop 103, see Fig. 2,3, and backstop 103 is embedded in the porcelain bushing 4 upper end corresponding grooves 402, and backstop 103 plays the antitorque commentaries on classics stopping function of wiring guide rod 1.Backstop 103 and groove correspondingly 402 can be respectively one, or be uniform two, three or more, adopt four backstops 103 more to help the location of upper end sealing ring 2.The corresponding flange cover 5 of inner surface and porcelain bushing 4 lower end external shape is placed in porcelain bushing 4 lower ends, and is embedded in the neck 404 of porcelain bushing 4 lower ends.Be provided with lower end sealing ring 6 between the binding site of flange cover 5 and porcelain bushing 4.Be filled with adhesive in the slit between the lower end neck 404 of porcelain bushing 4, flange cover 5 and the lower end sealing ring 6.Wiring guide rod 1 is connected with lead-in wire 7 by its inner blind hole 101, generally is 7 the end of going between is brazed in it.Upper end sealing ring 2 and lower end sealing ring 6 can be the packing ring of " O " type packing ring or square-section, and its material can be acrylonitrile-butadiene rubber, silicon rubber, fluorubber or ethylene-propylene diene copolymer etc.Adhesive can adopt polyurethanes, epoxy resin or organic siliconresin etc.
During assembling: the first step is overlapped 5 contact site adhesive coating and is loaded onto sealing ring 6 in porcelain bushing 4 lower ends and flange, is contained on the packaging machine then.Workpiece is pressed on the packaging machine vertically, and under the promotion of chuck, rotate, the neck 501 that hydraulic means on the frame promotes pressure roller roll-in flange cover 5 makes flange cover 5 fastening with porcelain bushing 4, the adhesive that has applied simultaneously is filled in the slit between porcelain bushing 4, flange cover 5, the sealing ring 6, behind the adhesive solidification in conjunction with as a whole.Second step was installed the wiring guide rod 1 of the flanged pin 102 that is welded with lead-in wire 7 in the upper end of porcelain bushing 4, stick with glue the upper surface 401 of agent coating porcelain bushing 4 and load onto sealing ring 2, axial compression and rotating on packaging machine then, hydraulic means promotes the lower edge 301 of pressure roller roll-in metal cap 3 simultaneously, make metal cap 4 closing in moulding, and adhesive is filled in the slit between porcelain bushing 4, metal cap 3 and the flange 102, solidifies the back and realizes fit sealing with wiring guide rod 1.
The utility model is applicable to electric equipment products such as oil immersed type, gas filled capacitor and discharge coil, is particularly useful for having outdoor power capacitor of interior oil immersed type of pressing or gas filled capacitor.Flange cover 5 can be welded on the case lid of capacitor with electric welding or method for brazing.Flange also overlaps directly punching press on case lid, fixes with special-purpose packaging mechanism and insulator roll-in during encapsulation.
Claims (7)
1. fixture wire insulating sleeve, comprise porcelain bushing (4), flange cover (5), lower end sealing ring (6), wiring guide rod (1), upper end sealing ring (2), metal cap (3) and lead-in wire (7), it is characterized in that: be provided with upper end sealing ring (2) between the flange (102) of described wiring guide rod (1) lower end and the upper surface (401) of porcelain bushing (4), described flange (102), all be filled with adhesive in the upper surface (401) of porcelain bushing (4) and the slit between the upper end sealing ring (2) and in the slit of metal cap (3) and porcelain bushing (4), the bottom of described porcelain bushing (4) is with inner surface and porcelain bushing (4) the lower end corresponding flange cover of external shape (5), described flange cover (5) is embedded in the lower, neck end (404) of porcelain bushing (4), be provided with lower end sealing ring (6) between the binding site of described flange cover (5) and porcelain bushing (4), the lower, neck end (404) of described porcelain bushing (4), be filled with adhesive between flange cover (5) and the lower end sealing ring (6), described wiring guide rod (1) and metal cap (3), metal cap (3) is with porcelain bushing (4) fixedlys connected.
2. fixture wire insulating sleeve according to claim 1 is characterized in that: the material of described upper end sealing ring (2) and lower end sealing ring (6) is acrylonitrile-butadiene rubber, silicon rubber, fluorubber or ethylene-propylene diene copolymer.
3. fixture wire insulating sleeve according to claim 1 and 2 is characterized in that: described adhesive is polyurethanes, epoxy resin or organic siliconresin class.
4. fixture wire insulating sleeve according to claim 3, it is characterized in that: described metal cap (3) and porcelain bushing (4) are to fixedly connected by being arranged on backstop (103) and porcelain bushing (4) upper surface (401) on wiring guide rod (1) lower surface with it the groove (402) that scarf mutually closes, or described metal cap (3) and porcelain bushing (4) be backstop (103) and all sides in porcelain bushing (4) upper surface (401) by being arranged at all sides of metal cap (3) or end or end with it mutually the groove (402) that closes of scarf fixedly connected; Described backstop (103) should be one, two or more respectively mutually with groove (402).
5. fixture wire insulating sleeve according to claim 4 is characterized in that: the lower edge (301) of described metal cap (3) is the tight fit of buckle with the upper end neck (403) of porcelain bushing (4); Described flange cover (5) is the tight fit of buckle with the lower, neck end (404) of porcelain bushing (4).
6. fixture wire insulating sleeve according to claim 5 is characterized in that: described wiring guide rod (1) is connected with lead-in wire (7) soldering by its inner blind hole (101).
7. fixture wire insulating sleeve according to claim 6 is characterized in that: described upper end sealing ring (2) and lower end sealing ring (6) are the packing ring of " O " type or square-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041759 CN2697798Y (en) | 2004-04-09 | 2004-04-09 | Insulation sleeve for leading wire of electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041759 CN2697798Y (en) | 2004-04-09 | 2004-04-09 | Insulation sleeve for leading wire of electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2697798Y true CN2697798Y (en) | 2005-05-04 |
Family
ID=34774646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420041759 Expired - Fee Related CN2697798Y (en) | 2004-04-09 | 2004-04-09 | Insulation sleeve for leading wire of electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2697798Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021591A (en) * | 2012-11-27 | 2013-04-03 | 青岛吉澳尔电子有限公司 | Insulating bushing for high-voltage parallel capacitor |
| CN103021592A (en) * | 2012-11-27 | 2013-04-03 | 青岛吉澳尔电子有限公司 | Insulating bush for high-voltage parallel capacitor |
| CN104538133A (en) * | 2014-12-03 | 2015-04-22 | 常州市拓源电缆成套有限公司 | Capacitance type composite insulating bush |
| CN104882232A (en) * | 2015-05-27 | 2015-09-02 | 西安创新能源工程有限公司 | Rolling-free sealing lead-out bushing and assembling method thereof |
| CN105702452A (en) * | 2016-04-07 | 2016-06-22 | 赵雪雅 | Lead-out bushing for high-voltage capacitor and composite core thereof |
-
2004
- 2004-04-09 CN CN 200420041759 patent/CN2697798Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021591A (en) * | 2012-11-27 | 2013-04-03 | 青岛吉澳尔电子有限公司 | Insulating bushing for high-voltage parallel capacitor |
| CN103021592A (en) * | 2012-11-27 | 2013-04-03 | 青岛吉澳尔电子有限公司 | Insulating bush for high-voltage parallel capacitor |
| CN104538133A (en) * | 2014-12-03 | 2015-04-22 | 常州市拓源电缆成套有限公司 | Capacitance type composite insulating bush |
| CN104882232A (en) * | 2015-05-27 | 2015-09-02 | 西安创新能源工程有限公司 | Rolling-free sealing lead-out bushing and assembling method thereof |
| CN105702452A (en) * | 2016-04-07 | 2016-06-22 | 赵雪雅 | Lead-out bushing for high-voltage capacitor and composite core thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050504 |