CN201576644U - Fuse cutout - Google Patents
Fuse cutout Download PDFInfo
- Publication number
- CN201576644U CN201576644U CN2009202921829U CN200920292182U CN201576644U CN 201576644 U CN201576644 U CN 201576644U CN 2009202921829 U CN2009202921829 U CN 2009202921829U CN 200920292182 U CN200920292182 U CN 200920292182U CN 201576644 U CN201576644 U CN 201576644U
- Authority
- CN
- China
- Prior art keywords
- fuse
- protection tube
- tube
- cartridge
- cartridge fuse
- Prior art date
- 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 fuse cutout, which comprises a hollow fuse tube. The upper end of the fuse tube is provided with an upper fastener, and the lower end thereof is provided with a lower fastener. The lower fastener is hinged with a fuse mount. Fuses are arranged in the fuse tube. The upper end of the fuse is electrically connected with the upper fastener, and the lower end of the fuse is electrically connected with the fuse mount. The lower end of the fuse tube is fixedly provided with a transparent secondary fuse tube. The lower end of the secondary fuse tube is fixedly connected with the lower fastener. The fuse is sleeved with an observation block corresponding to the secondary fuse tube. The cavity of the secondary fuse tube is provided with a protection tube which is sleeved with fuses. The lower end of the fuse tube is provided with a clamping unit which clamps the upper end of the protection tube. The clamping unit is a stopper or a groove. Due to the adoption of the structure, the fuse cutout has simple structure, which can quickly judge whether the fuse is blown or not, is particularly suitable for a fall-type fuse cutout, and quickly judge whether the fuse cutout need be replaced or not in case the maintenance personnel does not climb to high altitude.
Description
Technical field
The utility model relates to the fuse in the supply line.
Background technology
When electric power maintenance, often run into the problem that fuse switch fuses because of electric current is excessive, ideally, after fuse switch blows, can fall, thereby cut off the protective effect of circuit realization equipment from link; In actual applications, because fuse switch is in the environment of exposure, stand wind, Exposure to Sunlight for a long time and drench with rain, make the Plug Division of fuse switch suffer oxidative attack and save bit by bit a large amount of dusts, cause the success rate of fuse switch when falling to reduce greatly, so that when outage is repaired, be difficult to whether fall the damage of judging fuse switch from fuse switch, cause trouble to the attendant, wasted preventive maintenance time.
The utility model content
The technical problems to be solved in the utility model be at above-mentioned deficiency provide a kind of simple in structure, can judge the fuse whether fuse fuses fast.
For solving the problems of the technologies described above, this fuse comprises the hollow cartridge fuse, the upper end of cartridge fuse is equipped with upper fixing element, the lower end of cartridge fuse is provided with down fixture, is hinged with the fuse fixed mount on the following fixture, is provided with fuse in the cartridge fuse, the upper end of fuse is electrically connected with upper fixing element, the lower end of fuse is electrically connected with the fuse fixed mount, and its design feature is: the lower end of cartridge fuse is installed with one section transparent secondary cartridge fuse, and the lower end of secondary cartridge fuse is fixed together with following fixture.
The fuse of this structure adopts the segmented visible structure to realize judging fast whether fuse fuses.The segmented visible structure mainly comprises the secondary cartridge fuse that is fixed in the cartridge fuse lower end, and the lower end of following fixture and secondary cartridge fuse is fixed together, and secondary cartridge fuse is transparent visible.Under the electricity consumption normal condition, when fuse does not also fuse, just can see that by transparent secondary cartridge fuse fuse strains vertically in cartridge fuse, and break down when electricity consumption, when actual current surpassed fuse permission electric current, fuse fused high temperature, the fuse part of below, fuse failure place this moment will be in cartridge fuse blows out cartridge fuse under the impact of high temperature gas flow, to be empty in the secondary cartridge fuse this moment when observing by secondary cartridge fuse, and clearly fuse fuses.Use the fuse of this structure, need not to climb examines, judges whether fuse fuses, and also need not to use checkout equipment to detect quality, directly on the ground by perusal, just can know whether fuse needs to change, very convenient, help to improve operator's operating efficiency.
As improvement, be set with the observation piece corresponding on the fuse with secondary cartridge fuse position.
In order to strengthen the reliability of judging whether this fuse fuses, the observation piece that on fuse, has been locked, it is corresponding with secondary cartridge fuse position to observe piece.Be locked in the fuse outside because observe piece, more much bigger than fuse volume, so its observing effect is more obvious, convenient during judgement.
As further improvement, be provided with the protection tube of suit fuse in the inner chamber of secondary cartridge fuse, the cartridge fuse lower end is provided with the protection tube upper end and clamps the portion that clamps that cooperates.
Can produce electric arc during fuse failure, for extinguish arcs as early as possible, the air of cartridge fuse implosive can spray from top to bottom along the cartridge fuse inner chamber, so just realized the arc extinguishing effect, and the hot gas that is mingled with electric arc is through secondary cartridge fuse the time, can stay stain more or less on secondary cartridge fuse inwall, observe the next time that influences fuse.In secondary cartridge fuse behind the plug-in mounting protection tube, during fuse failure, stain will be attached on the protection tube inwall, thereby plays the effect of the secondary cartridge fuse of protection.Change protection tube for convenience, the cartridge fuse lower end is provided with protection tube and clamps the portion that clamps that cooperates.
As a kind of implementation, the described portion of clamping is Ka Tai or groove.
As further improving, Ka Tai is provided with the decompression line corresponding with the protection tube inwall again.
The air blast that produces during fuse failure is very powerful; might be in the time of can not in time discharging cartridge fuse at short notice along the protection tube upper end around outside protection tube; like this; the stain that is mixed in the air-flow will influence secondary cartridge fuse inwall; after on the Ka Tai decompression line corresponding with the protection tube inwall being set; the decompression line can cushion air blast, stops air-flow to flow laterally, helps to protect secondary cartridge fuse.
As further improving, be provided with the gap between secondary cartridge fuse and the protection tube.
Between secondary cartridge fuse lateral wall and protection tube madial wall, the gap is set, when changing protection tube, can reduces the friction between protection tube outer wall and the secondary cartridge fuse inwall, make replacing quicker, convenient.
In sum, adopt the fuse of this structure, simple in structure, can judge fast whether fuse fuses, especially be suitable as fuse switch and use, can make the attendant under the situation of not climbing, judge whether to need to change fuse fast.
Description of drawings
In conjunction with the accompanying drawings the utility model is described in further detail:
Accompanying drawing is the structural representation of fuse.
Among the figure: 1 is cartridge fuse, and 2 is upper fixing element, and 3 are following fixture, and 4 is the fuse fixed mount, and 5 is fuse; 6 is secondary cartridge fuse, and 7 for observing piece, and 8 is protection tube, and 9 is Ka Tai, and 10 are the decompression line; 11 is the gap, and 12 is last top cap, and 13 is conducting rod, and 14 is bolt, and 15 is cartridge clip.
Embodiment
As shown in Figure 1, present embodiment is that example is elaborated with the fuse switch, this fuse comprises the cartridge fuse 1 of hollow, the upper end snail of cartridge fuse 1 is connected to upper fixing element 2, in order to guarantee to connect firmly, be glued together after being spirally connected, the upper end snail of upper fixing element 2 is connected to top cap 12, be installed with conducting rod 13 in the last top cap 12, conducting rod 13 is electrically connected with last top cap 12 formations.The lower end snail of cartridge fuse 1 is connected to one section transparent secondary cartridge fuse 6, the lower end of secondary cartridge fuse 6 is screwed onto with following fixture 3, following fixture 3 also is bonded together with glue and secondary cartridge fuse 6, be hinged with fuse fixed mount 4 on the following fixture 3, bolt 14 and cartridge clip 15 are installed on the fuse fixed mount 4, be provided with fuse 5 in the cartridge fuse 1, the upper end of fuse 5 is screwed onto with upper fixing element 2 and constitutes electrical connection, the lower end of fuse 5 is locked on the fuse fixed mount 4 by bolt 14 by cartridge clip 15 tension backs, like this, last top cap 12 and fuse fixed mount 4 just are electrically connected by fuse 5.Be set with on the fuse 5 and the corresponding observation piece 7 in secondary cartridge fuse 6 positions, observe piece 7 and be spherical shape, it is much bigger to observe piece 7 volume ratio fuses 5, so observing effect is more obvious.Be provided with the protection tube 8 of suit fuse 5 in the inner chamber of secondary cartridge fuse 6; the main effect of protection tube 8 is that the electric arc that produces when preventing fuse 5 fusing causes damage to secondary cartridge fuse 6 inwalls; influence is used next time; after protection tube 8 is set; the protected pipe 8 of electric arc of fuse 5 fusing stops; next time is when changing fuse 5, protection tube 8 changed together get final product.Cartridge fuse 1 lower end is provided with protection tube 8 upper ends and clamps the card platform 9 that cooperates, and when changing protection tube 8, only needs protection tube 8 to be pulled down or snapped fitted on the card platform 9 from card platform 9 by the plug action, and is very convenient.Card platform 9 is provided with the decompression line 10 corresponding with protection tube 8 inwalls, the air blast that the main effect of decompression line 10 produces when being the fusing of buffering fuse 5, prevent air-flow from protection tube 8 upper ends around to protection tube 8 outsides, avoid secondary cartridge fuse 6 inboards are damaged.In order to reduce the friction between the protection tube 8 and secondary cartridge fuse 6 when the plug protection tube 8, be provided with gap 11 between secondary cartridge fuse 6 and the protection tube 8.
In the above-described embodiment, be to be that example is elaborated with the fuse switch, this fuse also can be used in the short circuit or overcurrent protection of other circuit, and its structure is identical with operation principle, no longer carefully states at this.
Claims (6)
1. fuse, comprise hollow cartridge fuse (1), the upper end of cartridge fuse (1) is equipped with upper fixing element (2), the lower end of cartridge fuse (1) is provided with down fixture (3), be hinged with fuse fixed mount (4) on the following fixture (3), be provided with fuse (5) in the cartridge fuse (1), the upper end of fuse (5) is electrically connected with upper fixing element (2), the lower end of fuse (5) is electrically connected with fuse fixed mount (4), it is characterized in that: the lower end of cartridge fuse (1) is installed with one section transparent secondary cartridge fuse (6), and the lower end of secondary cartridge fuse (6) is fixed together with following fixture (3).
2. fuse as claimed in claim 1 is characterized in that: be set with the observation piece (7) corresponding with secondary cartridge fuse (6) position on the fuse (5).
3. fuse as claimed in claim 1 or 2 is characterized in that: be provided with the protection tube (8) of suit fuse (5) in the inner chamber of secondary cartridge fuse (6), cartridge fuse (1) lower end is provided with protection tube (8) upper end and clamps the portion that clamps that cooperates.
4. fuse as claimed in claim 3 is characterized in that: the described portion of clamping is Ka Tai (9) or groove.
5. fuse as claimed in claim 4 is characterized in that: Ka Tai (9) is provided with the decompression line (10) corresponding with protection tube (8) inwall.
6. fuse as claimed in claim 3 is characterized in that: be provided with gap (11) between secondary cartridge fuse (6) and the protection tube (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202921829U CN201576644U (en) | 2009-12-29 | 2009-12-29 | Fuse cutout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202921829U CN201576644U (en) | 2009-12-29 | 2009-12-29 | Fuse cutout |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201576644U true CN201576644U (en) | 2010-09-08 |
Family
ID=42696518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202921829U Expired - Lifetime CN201576644U (en) | 2009-12-29 | 2009-12-29 | Fuse cutout |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201576644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764004B (en) * | 2009-12-29 | 2012-07-11 | 山东电力集团公司潍坊供电公司 | Fuse protector |
-
2009
- 2009-12-29 CN CN2009202921829U patent/CN201576644U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764004B (en) * | 2009-12-29 | 2012-07-11 | 山东电力集团公司潍坊供电公司 | Fuse protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100908 Effective date of abandoning: 20091229 |