CN202796816U - Fuse link used for protecting semiconductor device - Google Patents
Fuse link used for protecting semiconductor device Download PDFInfo
- Publication number
- CN202796816U CN202796816U CN 201220511908 CN201220511908U CN202796816U CN 202796816 U CN202796816 U CN 202796816U CN 201220511908 CN201220511908 CN 201220511908 CN 201220511908 U CN201220511908 U CN 201220511908U CN 202796816 U CN202796816 U CN 202796816U
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- CN
- China
- Prior art keywords
- fuse
- fusion tube
- link
- protection
- contact plate
- 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 link used for protecting a semiconductor device. The fuse link used for protecting the semiconductor device includes a fuse tube, a pair of contact boards, a plurality of fuse elements, an arc distinguished medium and a blown fuse indicator. The fuse tube is in the structure of being square in the outer part and round in the inner part. The inner surface of the contact board is provided with a plurality of parallel impresses uniformly in a centro-symmetric manner. And the two contact boards are installed on two ends of the fuse tube. The surface of each of the fuse elements is provided with multiple rows of holes at regular intervals in the longitudinal direction. Each row of the holes contains a plurality of round holes having the same diameter and the longitudinal spacing distances are Delta. Two ends of each of the fuse elements are bent in an arcwise manner towards the same direction and are spot-welded on the impresses of the contact board correspondingly one to one, so that the fuse elements are arranged in an inner cavity of the fuse tube at regular intervals and in parallel with an axial line of the fuse tube. The arc distinguished medium is filled in the inner cavity of the fuse tube. The blown fuse indicator is arranged in an indicating hole arranged in the fuse tube and is connected with a striker arranged outside the fuse tube.
Description
Technical field
The utility model relates to a kind of fuse-link for the protection of semiconductor equipment, and this fuse-link is used for rated voltage and exchanges 2000V, and direct current is 1600V, rated current 50A to 400A.
Background technology
Fuse-link is as the usefulness of the short-circuit protection of the complete set of equipments of rectifying installation and relevant device (comprising frequency converter, soft start etc.), semiconductor element and composition thereof.At present, the protection of common semiconductor equipment generally includes fusion tube with fuse-link, is located at some melts in the fusion tube and is located at the contact plate (contact knife) at fusion tube two ends, fills with quartz sand in the fusion tube.Because heating effect of current is heated rapidly, local temperature raises rapidly until melt fuses with a minute deenergizing.But most of model rated voltages all are in the state of AC1000V/DC 1500V in the present like product, and the fuse-link of high voltage is seldom arranged usually.In addition, as the common insulated tube of fusion tube, not only resistance to elevated temperatures and decay resistance are relatively poor on the common fuse-link, nor enough attractive in appearance.
Summary of the invention
The purpose of this utility model is for the little present situation of rated current in the prior art, and a kind of fuse-link for the protection of semiconductor equipment is provided, and its rated voltage is higher, and operating chacteristics is stable, and is more reliable to the protection of circuit.
The technical scheme that realizes above-mentioned purpose is: a kind of fuse-link for the protection of semiconductor equipment, comprise fusion tube, a pair of contact plate, some melts, arc-extinguishing medium and blown fuse indicators, wherein,
Described fusion tube is the structure of square-outside and round-inside;
Be provided with some roads impression in centrosymmetric mode respectively on the inner surface of described contact plate, a pair of described contact plate is assemblied in the two ends of described fusion tube;
As one man offer the ordered series of numbers hole at interval along its length on the surface of every described melt, contain the identical and longitudinal separation of a plurality of diameters distance in every row hole and be the circular hole of δ, two of every described melt is welded on the impression of described contact plate behind same direction bow respectively correspondingly, so that some melts are located at the inner chamber of fusion tube equally spacedly and with the axis of described fusion tube abreast;
Described arc-extinguishing medium is filled in the inner chamber of described fusion tube;
Described blown fuse indicator be located in the indicator hole of offering on the described fusion tube with and be located at the outer striker of fusion tube and be connected.
The above-mentioned fuse-link for the protection of semiconductor equipment, wherein, a pair of described contact plate is assemblied in respectively the two ends of described fusion tube by cover plate.
The above-mentioned fuse-link for the protection of semiconductor equipment, wherein, the two ends of described striker are connected on a pair of described contact plate.
The above-mentioned fuse-link for the protection of semiconductor equipment, wherein, described fusion tube adopts No. 95 aluminium oxide ceramics to make.
The above-mentioned fuse-link for the protection of semiconductor equipment, wherein, described melt adopts 99.9% fine silver to make.
Fuse-link for the protection of semiconductor equipment of the present utility model compared with prior art has following advantage:
1. rated voltage is higher;
2. operating chacteristics is stable, and is more reliable to the protection of circuit;
The Structure Improvement of melt electrical property and hot property, work temperature rise and heat-sinking capability all are improved;
4. installation form variation;
5. adopt No. 95 aluminium oxide ceramics as fusion tube, make the profile of fuse-link more attractive in appearance.
Description of drawings
Fig. 1 is the outline drawing of the fuse-link for the protection of semiconductor equipment of the present utility model;
Fig. 2 is the end view of Fig. 1;
Fig. 3 is the half-sectional view of the fuse-link for the protection of semiconductor equipment of the present utility model;
Fig. 4 is the structural representation for the protection of the melt in the fuse-link of semiconductor equipment of the present utility model;
Fig. 5 is the structural representation for the protection of contact plate in the fuse-link of semiconductor equipment of the present utility model;
Fig. 6 is the outline drawing of the first embodiment of the fuse-link for the protection of semiconductor equipment of the present utility model;
Fig. 7 is the outline drawing of the second embodiment of the fuse-link for the protection of semiconductor equipment of the present utility model;
Fig. 8 a is the outline drawing of the third embodiment of the fuse-link for the protection of semiconductor equipment of the present utility model;
Fig. 8 b is the end view of Fig. 8 a.
Embodiment
In order to understand the technical solution of the utility model better, below by embodiment particularly and be described in detail by reference to the accompanying drawings:
See also Fig. 1 to Fig. 5, the fuse-link for the protection of semiconductor equipment of the present utility model comprises fusion tube 1, a pair of contact plate 2, four melts 3, arc-extinguishing medium 4, blown fuse indicator 5 and strikers, wherein,
Fusion tube 1 is the structure of square-outside and round-inside, and fusion tube adopts No. 95 aluminium oxide ceramics to make, and this material not only will have good high temperature resistant, corrosion-resistant and insulation property, and outward appearance is also comparatively attractive in appearance;
The inner segment of a pair of contact plate 2 is the circle flat board adaptive with the inner chamber of fusion tube 1, and is provided with four road impressions 21 in centrosymmetric mode on the inner surface of this circle flat board, and a pair of contact plate 2 is assemblied in respectively the two ends of fusion tube 1 by cover plate 22;
Arc-extinguishing medium 4 is quartzy sand grains and the inner chamber that is filled in fusion tube 1;
Striker comprises mounting panel 6, bump thimble and spring, and mounting panel 6 is located at outside the fusion tube 1 and two ends are connected on a pair of cover plate 22, and the bump thimble is connected on the mounting panel 6 and by spring and blown fuse indicator 5 and is oppositely arranged.
When the fuse-link for the protection of semiconductor equipment of the present utility model in use runs into fault current; width is that the narrow neck place of δ will melt rapidly in the melt 3; and generation moment electric arc; electric arc can and extinguish by arc-extinguishing medium on every side 4 coolings; meanwhile; constantan wire 52 also can be melted rapidly and make blown fuse indicator 5 overcome Compress Spring 51 startups and the bump thimble of bump striker; make the indicator cock action that is connected with the mounting panel 6 of striker send signal, for interlock circuit and components and parts provide reliable protection.
Fuse-link for the protection of semiconductor equipment of the present utility model also can adopt different connected modes according to different circuit; can replace with slotting tool 2 ' such as: contact plate 2, the mounting panel 6 of striker can be located at according to the form of slotting tool 2 ' on the side of melt 1 (see figure 7) on (see figure 6) or another side.
Fuse-link for the protection of semiconductor equipment of the present utility model also can adopt different contact knifes according to different circuit; can be with the slotting tool 20 ', 20 of different structure such as: the contact plate 2 at fusion tube 1 two ends " replace (see Fig. 8 a), the mounting panel 6 of striker can be according to slotting tool 20 ', 20 " form be located at the side (seeing Fig. 8 b) of melt 1.
Fuse-link for the protection of semiconductor equipment of the present utility model can be used for rated voltage and exchanges 2000V, and direct current is 1600V, and the occasion of rated current 50A to 400A can reach the requirement of semiconductor or rectifying installation protection fully.
Those of ordinary skill in the art will be appreciated that, above embodiment illustrates the utility model, and be not to be used as restriction of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.
Claims (5)
1. the fuse-link for the protection of semiconductor equipment comprises fusion tube, a pair of contact plate, some melts, arc-extinguishing medium and blown fuse indicators, it is characterized in that,
Described fusion tube is the structure of square-outside and round-inside;
Be provided with some roads impression in centrosymmetric mode respectively on the inner surface of described contact plate, a pair of described contact plate is assemblied in the two ends of described fusion tube;
As one man offer the ordered series of numbers hole at interval along its length on the surface of every described melt, contain the identical and longitudinal separation of a plurality of diameters distance in every row hole and be the circular hole of δ, two of every described melt is welded on the impression of described contact plate behind same direction bow respectively correspondingly, so that some melts are located at the inner chamber of fusion tube equally spacedly and with the axis of described fusion tube abreast;
Described arc-extinguishing medium is filled in the inner chamber of described fusion tube;
Described blown fuse indicator be located in the indicator hole of offering on the described fusion tube with and be located at the outer striker of fusion tube and be connected.
2. the fuse-link for the protection of semiconductor equipment according to claim 1 is characterized in that, a pair of described contact plate is assemblied in respectively the two ends of described fusion tube by cover plate.
3. the fuse-link for the protection of semiconductor equipment according to claim 1 is characterized in that, the two ends of described striker are connected on a pair of described contact plate.
4. the fuse-link for the protection of semiconductor equipment according to claim 1 is characterized in that, described fusion tube adopts No. 95 aluminium oxide ceramics to make.
5. the fuse-link for the protection of semiconductor equipment according to claim 1 is characterized in that, described melt adopts 99.9% fine silver to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511908 CN202796816U (en) | 2012-09-28 | 2012-09-28 | Fuse link used for protecting semiconductor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511908 CN202796816U (en) | 2012-09-28 | 2012-09-28 | Fuse link used for protecting semiconductor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202796816U true CN202796816U (en) | 2013-03-13 |
Family
ID=47824020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220511908 Expired - Lifetime CN202796816U (en) | 2012-09-28 | 2012-09-28 | Fuse link used for protecting semiconductor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202796816U (en) |
-
2012
- 2012-09-28 CN CN 201220511908 patent/CN202796816U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |