CN202712105U - Outdoor alternating-current high-voltage drop-out fuse - Google Patents
Outdoor alternating-current high-voltage drop-out fuse Download PDFInfo
- Publication number
- CN202712105U CN202712105U CN 201220381761 CN201220381761U CN202712105U CN 202712105 U CN202712105 U CN 202712105U CN 201220381761 CN201220381761 CN 201220381761 CN 201220381761 U CN201220381761 U CN 201220381761U CN 202712105 U CN202712105 U CN 202712105U
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- Prior art keywords
- flow deflector
- steel pin
- voltage drop
- outdoor
- high voltage
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Abstract
The utility model relates to an outdoor alternating-current high-voltage drop-out fuse. The drop-out fuse comprises a porcelain insulator (13), a middle mounted steel foot (14), a fusion tube component, an upper support plate mounted on an upper mounted steel foot (22), an anti-ice cover (3), a static contact blade (4), a hook, a flow deflector (11) mounted on a lower mounted steel foot (23) and a lower support frame (10), wherein the flow deflector (11) is an one-piece deflector and is provided with a mounting hole I (17), a mounting hole II (18), an inclined plane (19) and a rivet hole (20); the flow deflector (11) is fixedly mounted on the lower support frame (10) by the mounting hole (17) and the rivet hole (20) and is in compression joint with wires together with a lower wire pressure plate (12) through the mounting hole II (18). The fuse has the advantages of reliable performance, low failure rate and long service life.
Description
Technical field
The utility model relates to a kind of fuse switch, has related in particular to a kind ofly to have adopted anticorrosion pouring technique to build the steel pin and use the outdoor ac high voltage drop fuse of integrated flow deflector.
Background technology
The outdoor drop-out fuse that uses at present is used for the overhead distribution system, and the visible indication of overcurrent protection, fault-current protection and fuse member action is provided.Because it has intuitively visible fracture, and when cut-offfing instrument with load and use, can play the effect of on-load switch and can cut-off load current, create safe operational environment for maintenance circuit and plant maintenance, be used widely.
But in electric line, the high voltage drop-out type fuse cutout that generally uses at present, because the feature cause of the lower carriage casting model that uses in the industry at present, the flow deflector that contacts with wire that causes installing in the above can not directly touch the fusion tube assembly, and need to come the indirect contact water conservancy diversion by an other flow deflector is installed, this Installation Modes is common practice in the industry, but this exists some problems, the connection of two flow deflectors can not be accomplished intimately seamless, the oxidation on flow deflector surface or between them existing slit not only increased resistance, and reduced conductance, easily break down.In addition, the steel pin casting craft of existing fuse all is directly to build, then build material-cement and have certain corrosivity, directly just can corrode the steel pin again in the casting process like this, rigidity, intensity to the steel pin cause damage, and have also increased in use the probability that fault occurs damaging for fuse.Therefore, be badly in need of on the market a kind of neither need to change on a large scale fuse production technology, production equipment, do not increase production cost, the damage failure rate of fuse can be dropped to minimum outdoor ac high voltage drop fuse again.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, provide a kind of and used the integrated flow deflector that to install at lower carriage through carrying out after the ingenious improvement design, and the steel pin has been carried out the outdoor ac high voltage drop fuse that antiseptic performance is more reliable, damage failure rate is low, long service life.
To achieve these goals, the utility model has adopted following technical scheme: a kind of outdoor ac high voltage drop fuse, comprise porcelain insulator, the middle steel pin of installing, the fusion tube assembly, be installed in the upper backup pad on the installation steel pin, de-icer boot, static contact and hook, and be installed in flow deflector and lower carriage on the lower installation steel pin, described flow deflector is the integrated guide flow, flow deflector is provided with the installing hole I, the installing hole II, inclined-plane and rivet hole, flow deflector is fixedly mounted on the lower carriage by installing hole I and rivet hole, by the installing hole II with lower tension disc crimping lead wire.
The utility model further can: be connected with the L-type shell fragment by rivet on the described flow deflector.
The contact-making surface of described flow deflector and fusion tube assembly is provided with the bar shaped projection.
Described flow deflector is the copper material flow deflector, and its electroplate.
The gradient on the inclined-plane of described flow deflector is suitable for being installed on the lower carriage as benchmark take flow deflector, and making flow deflector is the flow of continuity integrated guide.
The end that steel pin, upper installation steel pin and lower installation steel pin are installed in the middle of described is fixedly mounted in the porcelain insulator by building material, and middle steel pin, upper installation steel pin and lower installation steel pin are installed and are built be provided with anti-corrosion protective film between the material.
The described material of building is the microdilatancy quick hardening cement.The characteristics such as the cement that the utility model uses is a kind of microdilatancy quick hardening cement of import, and it is possessing uvioresistant, quick-drying (time of building is short), condense firmly.
Described anti-corrosion protective film is to coat the asphalt film that pitch forms by steel pin, installation steel pin and lower installation steel pin are installed in the centre.Asphalt film is the medium that forms expansion buffer between steel pin and the cement is installed, so that the steel pin can firmly be cast in the porcelain vase.
The fusion tube assembly comprises fusion tube, is installed in ring, fuse, lower turnover panel and pressure releasing cap etc. under the fusion tube pressed on ring, fusion tube at fusion tube two ends in the utility model; Pressure releasing cap is installed in the upper end of fusion tube, and presses tactile the connection with the groove of static contact; Ring is connected with lower carriage, flow deflector by lower moving contact seat under the fusion tube.
Be provided with a spring between above-mentioned static contact and the de-icer boot, make static contact and pressure releasing cap can form effective pressure and touch and to be connected.
Above-mentioned upper backup pad is respectively equipped with left tension disc and right tension disc, is used for crimping lead wire.
Based on the applicant first to file or on the same day the application patented technology, outdoor ac high voltage drop fuse can also increase some designs, as be provided with the convex surface contact in the hemispherical groove of the static contact that contacts with the pressure releasing cap of fusion tube upper end, the quantity of convex surface contact is more than three; Be provided with an accelerator in the side at hook, an end of accelerator contacts etc. with the fusion tube pressed on ring of fusion tube assembly.
Advantage of the present utility model:
1. by the improvement design to flow deflector, be applicable to be installed in existing lower carriage, so that adopt integrated flow deflector scheme to be achieved, improved like this conductance, the fault that product causes owing to loose contact before avoiding.
2. asphalt film is being installed the medium that forms expansion buffer between steel pin and the cement, so that the steel pin can firmly be cast in the porcelain vase, and asphalt film makes the steel pin directly not contact with cement, prevent that the steel pin from being corroded by cement, namely the steel pin is carried out the useful life that antiseptic performance is more reliable, damage failure rate is low, prolongation fuse.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is the schematic diagram of flow deflector and lower carriage among the utility model one embodiment.
Fig. 3 is the schematic diagram of flow deflector among the utility model one embodiment.
Reference numeral: left tension disc 1, right tension disc 2, de-icer boot 3, static contact 4, pressure releasing cap 5, fusion tube pressed on ring 6, fusion tube 7, lower moving contact seat 8, encircle 9 under the fusion tube, lower carriage 10, flow deflector 11, lower tension disc 12, porcelain insulator 13, middle steel pin 14, L-type shell fragment 15, the rivet 16 installed, installing hole 17, installing hole 18, inclined-plane 19, rivet hole 20, bar shaped projection 21, upper installation steel pin 22, lower installation steel pin 23.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment:
As shown in drawings, an outdoor ac high voltage drop fuse comprises porcelain insulator 13, middle steel pin 14, fusion tube assembly is installed, is installed in upper backup pad, de-icer boot 3, static contact 4 and the hook on the installation steel pin 22 and is installed in flow deflector 11 and lower carriage 10 on the lower installation steel pin 23; Upper backup pad is respectively equipped with left tension disc 1 and right tension disc 2; The fusion tube assembly comprises fusion tube 7, be installed in encircle 9 under the fusion tube pressed on ring 6 at fusion tube 7 two ends, the fusion tube, fuse, lower turnover panel and pressure releasing cap 5 etc.; Pressure releasing cap 5 is installed in the upper end of fusion tube 7, and presses tactile the connection with the groove of static contact 4; Ring 9 is connected with lower carriage 10, flow deflector 11 by lower moving contact seat 8 under the fusion tube; The integrated guide flow of the copper material that described flow deflector 11 is electroplates, flow deflector 11 is provided with installing hole I 17, installing hole II 18, inclined-plane 19 and rivet hole 20, flow deflector 11 is fixedly mounted on the lower carriage 10 by installing hole I 17 and rivet hole 20, by installing hole II 18 with lower tension disc 12 crimping lead wires; Be connected with L-type shell fragment 15 by rivet 16 on the described flow deflector 11; Described flow deflector 11 is provided with bar shaped projection 21 with the contact-making surface of fusion tube assembly; The design of the gradient on the inclined-plane 19 of described flow deflector 11 is suitable for being installed on the lower carriage 10 as benchmark take flow deflector 11, and making flow deflector is the flow of continuity integrated guide; The end that steel pin 14, upper installation steel pin 22 and lower installation steel pin 23 are installed in the middle of described is fixedly mounted in the porcelain insulator 13 by building material, and middle steel pin 14, upper installation steel pin 22 and lower installation steel pin 23 are installed and are built be provided with anti-corrosion protective film between the material; The described material of building is the microdilatancy quick hardening cement; Described anti-corrosion protective film is to coat the asphalt film that pitch forms by steel pin 14, installation steel pin 22 and lower installation steel pin 23 are installed in the centre.
Claims (8)
1. outdoor ac high voltage drop fuse, comprise porcelain insulator (13), the middle steel pin (14) of installing, the fusion tube assembly, be installed in the upper backup pad on the installation steel pin (22), de-icer boot (3), static contact (4) and hook, and be installed in flow deflector (11) and lower carriage (10) on the lower installation steel pin (23), it is characterized in that: described flow deflector (11) is the integrated guide flow, flow deflector (11) is provided with installing hole I (17), installing hole II (18), inclined-plane (19) and rivet hole (20), flow deflector (11) is fixedly mounted on the lower carriage (10) by installing hole I (17) and rivet hole (20), by installing hole II (18) with lower tension disc (12) crimping lead wire.
2. outdoor ac high voltage drop fuse according to claim 1 is characterized in that: is connected with L-type shell fragment (15) by rivet (16) on the described flow deflector (11).
3. arbitrary described outdoor ac high voltage drop fuse according to claim 1 and 2, it is characterized in that: described flow deflector (11) is provided with bar shaped projection (21) with the contact-making surface of fusion tube assembly.
4. outdoor ac high voltage drop fuse according to claim 3, it is characterized in that: described flow deflector (11) is the copper material flow deflector, and its electroplate.
5. outdoor ac high voltage drop fuse according to claim 3, it is characterized in that: it is upper as benchmark that the gradient design on the inclined-plane (19) of described flow deflector (11) is suitable for being installed in lower carriage (10) take flow deflector (11), makes flow deflector (11) be the flow of continuity integrated guide.
6. according to claim 1; 2; 4 or 5 arbitrary described outdoor ac high voltage drop fuses; it is characterized in that: the end that steel pin (14), upper installation steel pin (22) and lower installation steel pin (23) are installed in the middle of described is fixedly mounted in the porcelain insulator (13) by building material, and middle installation steel pin (14), upper installation steel pin (22) and lower installation steel pin (23) and build and be provided with anti-corrosion protective film between the material.
7. outdoor ac high voltage drop fuse according to claim 6, it is characterized in that: the described material of building is the microdilatancy quick hardening cement.
8. outdoor ac high voltage drop fuse according to claim 6 is characterized in that: described anti-corrosion protective film is by the asphalt film that steel pin (14), upper installation steel pin (22) and lower installation steel pin (23) are coated pitch formation is installed in the centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381761 CN202712105U (en) | 2012-08-03 | 2012-08-03 | Outdoor alternating-current high-voltage drop-out fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381761 CN202712105U (en) | 2012-08-03 | 2012-08-03 | Outdoor alternating-current high-voltage drop-out fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202712105U true CN202712105U (en) | 2013-01-30 |
Family
ID=47592382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220381761 Expired - Fee Related CN202712105U (en) | 2012-08-03 | 2012-08-03 | Outdoor alternating-current high-voltage drop-out fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202712105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810439A (en) * | 2012-08-03 | 2012-12-05 | 广西和谐电力科技有限公司 | Outdoor alternating current high-voltage drop-out fuse |
-
2012
- 2012-08-03 CN CN 201220381761 patent/CN202712105U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810439A (en) * | 2012-08-03 | 2012-12-05 | 广西和谐电力科技有限公司 | Outdoor alternating current high-voltage drop-out fuse |
| CN102810439B (en) * | 2012-08-03 | 2015-09-09 | 广西和谐电力科技有限公司 | A kind of outdoor ac high voltage drop fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20190803 |