CN207818505U - A kind of interior cap of fuse - Google Patents
A kind of interior cap of fuse Download PDFInfo
- Publication number
- CN207818505U CN207818505U CN201721459897.XU CN201721459897U CN207818505U CN 207818505 U CN207818505 U CN 207818505U CN 201721459897 U CN201721459897 U CN 201721459897U CN 207818505 U CN207818505 U CN 207818505U
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- CN
- China
- Prior art keywords
- interior cap
- fuse
- wall
- interference
- cap
- 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.)
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 36
- 230000007704 transition Effects 0.000 claims abstract description 26
- 230000013011 mating Effects 0.000 claims abstract description 12
- 239000011257 shell material Substances 0.000 description 29
- 238000010586 diagram Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Fuses (AREA)
Abstract
A kind of interior cap of fuse, the through-hole passed through for melt is offered on the end wall of the interior cap, the peripheral wall interference or transition of the interior cap coordinate on the periphery wall at the both ends of fuse shell, it is characterized in that close to one end of the fuse shell end face being interference or transition mating surface in the peripheral wall, the interference or transition mating surface internal diameter are less than the periphery wall outer diameter of the fuse shell；The internal diameter of all wall openings of the interior cap is more than the outer diameter of the fuse shell periphery wall.Fuse shell outer diameter is more than due to peripheral wall opening inside diameter or opens up open slot in all wall openings, the assembling riveting of interior cap then becomes easy operation.
Description
Technical field
The utility model is related to caps in fuse, refer in particular to fuse with interior cap structure.
Background technology
Fuse is common electric components, is played a protective role in circuit.The structure of general fuse, such as Fig. 1
It is shown, including fuse shell 1, the melt 11 being arranged in fuse shell and the arc extinguishing material being filled in fuse shell
Material, interference, which rivets, on fuse shell has interior cap 12, the both ends of melt to be welded on interior cap, and outer cap is combined on interior cap
13, contact knife 14 is fixedly installed on outer cap.Interior cap is interference fitted on fuse shell, and being riveted on interior cap has outer cap, by
Smooth in the periphery wall of interior cap, the face that interior cap is contacted with outer cap is smooth, and therefore, when fuse pulling capacity is tested, fuse is drawn
Pull out force is not generally high.And the peripheral wall internal diameter of the interior cap of interference riveting is less than the outer diameter of fuse shell, therefore installed in interior cap
When, since peripheral wall opening inside diameter is less than fuse shell outer diameter, cause to install highly difficult, interior cap is difficult to be riveted on fuse shell
On.Therefore, the riveted structure of current interior cap and outer cap in the case of keeping the interior cap of fuse difficult to install, tests pulling capacity
It is not high.
Invention content
It is easy for installation the technical problem to be solved by the utility model is to provide a kind of interior cap of fuse, save peace
ETL estimated time of loading, installation yields is high, and has higher fuse pulling capacity.
In order to solve the above technical problems, technical solution provided by the utility model is a kind of interior cap of fuse, described
The through-hole passed through for melt is offered on the end wall of interior cap, the peripheral wall interference or transition of the interior cap coordinate in fuse shell
On the periphery wall at both ends, it is characterised in that match for interference or transition close to one end of the fuse shell end face in the peripheral wall
Conjunction face, the interference or transition mating surface internal diameter are less than the periphery wall outer diameter of the fuse shell；The peripheral wall of the interior cap is opened
The internal diameter of mouth is more than the outer diameter of the fuse shell periphery wall.
The interior cap inner peripheral portion structure setting between the interference fit face and all wall openings is one or number
The internal diameter of a interconnection intermediate incline incremented by successively.
It is connected by transition plane between the adjacent intermediate incline.
The interior cap inner peripheral portion structure is set in an axial direction between the interference or transition mating surface and all wall openings
It is set to wavy shaped configuration, the internal diameter of the trough is identical as the internal diameter of the interference or transition mating surface.
The wave crest is planar structure, and the trough is planar structure or V-structure.
The peripheral wall opening shape is flare openings.
The interference or transition mating surface are internal diameter incremental inclined-plane gradually.
It is offered on the periphery wall of the interior cap with the interior cap shaft to several parallel or angled grooves.
A kind of interior cap of fuse offers the through-hole passed through for melt on the end wall of the interior cap, the interior cap
Peripheral wall interference or transition cooperation are on the periphery wall at the both ends of fuse shell, it is characterised in that in all wall openings of the interior cap
It goes up and surrounds perimeter, be arranged at intervals with the open slot parallel with axial direction, surrounded on the peripheral wall positioned at the open slot side
Perimeter is arranged at intervals with a row or number row's salient point.
The interior cap of the fuse of the utility model, since peripheral wall opening inside diameter is more than fuse shell outer diameter, in interior cap group
When dress, then easy, interior cap is riveted on fuse shell.Or between the interior cap week wall opening of existing fuse shell
It separates and sets several open slots, make in assembling, all wall openings are easy to strut that assembling is made to become easy.The utility model it is interior
Cap structure, assembling is simple and convenient, saves a large amount of built-up times, and interior cap assembling yields greatly improved.Moreover, by interior
The iiared port of cap, interior cap week wall opening be more than fuse shell outer diameter, a plurality of fin is offered on interior cap periphery wall wall or
Cap structure in a row or multi-row salient point etc. is arranged on groove, interior cap External Periodic to change, when outer cap cooperation being made to be assembled on interior cap, makes
Closer, this closer firm riveted structure is combined between outer cap and interior cap, the test that can largely improve fuse is drawn
Pull out force.
Description of the drawings
Fig. 1, conventional fuse shell mechanism schematic diagram.
Fig. 2, the utility model fuse are cutd open with interior cap positive structure diagram.
Fig. 3, the utility model fuse are cutd open with interior cap side structure schematic view.
Part A enlarged structure structural schematic diagrams in Fig. 4, Fig. 3.
Fig. 5, the utility model fuse are cutd open with interior cap side structure schematic view.
Part B enlarged structure structural schematic diagrams in Fig. 6, Fig. 5.
Fig. 7, the utility model fuse are cutd open with interior cap side structure schematic view.
Local C enlarged structure structural schematic diagram in Fig. 8, Fig. 7.
Fig. 9, the utility model fuse are cutd open with interior cap side structure schematic view.
Part D enlarged structure structural schematic diagrams in Figure 10, Fig. 9.
Figure 11, the utility model fuse are cutd open with interior cap side structure schematic view.
Part E enlarged structure structural schematic diagrams in Figure 12, Figure 11.
Figure 13, the utility model fuse are cutd open with interior cap positive structure diagram.
Figure 14, the utility model fuse are cutd open with interior cap side structure schematic view.
Part F enlarged structure structural schematic diagrams in Figure 15, Figure 14.
Figure 16, the utility model fuse are cutd open with interior cap side structure schematic view.
Part G enlarged structure structural schematic diagrams in Figure 17, Figure 16.
The peripheral wall structure schematic diagram of cap structure in Figure 18, Figure 16.
Specific implementation mode
Scheme in view of the above technology is now lifted a preferred embodiment and is specifically described in conjunction with diagram.
Interior cap 2 offers through-hole referring to Fig. 2 to Fig. 4 on the end wall of interior cap, can by the melt in the through-hole fuse
Across the through-hole and it is welded on the wall of interior cap end.Interference fit face 21 and all wall openings 22, mistake are provided on the peripheral wall of interior cap 2
It is full of between mating surface and all wall openings and changeover portion connection is used as by intermediate incline 23.Wherein, the internal diameter in interference fit face 21 is small
It is cylindrical-shaped structure in the outer diameter of fuse shell；Peripheral wall opening inside diameter is more than fuse shell outer diameter, and structure is cylindric
Structure；Intermediate incline 23 connects interference fit face and all wall openings, and structure is circular cone structure, and internal diameter is from interference fit face
Inner diameter size gradually increase to peripheral wall opening inner diameter size.Since peripheral wall opening internal diameter is more than fuse shell outer diameter,
When assembling riveting, all wall openings of interior cap are directly set on fuse shell periphery wall, are then made by outer force effect interior
Cap easy is riveted on fuse shell.When significantly reducing peripheral wall opening inside diameter less than fuse shell outer diameter, week
Wall opening is set in the difficulty on fuse shell periphery wall, improves assembling convenience and simplicity, saves working hour, improves
Yields.Impact force when mitigating riveting by increasing intermediate incline, breakage rate when reducing interior cap riveting.In order to further increase
The assembling ease for operation of interior cap and assembling yields is improved, in Fig. 5 to Fig. 6, between interference fit face 21 and all wall openings 22
Two intermediate inclines 23 are set, are connected by transition plane 24 between two intermediate inclines, transition plane structure is cylindric
Structure.It is slow to reduce riveting in order to make internal diameter variation transition more smooth out for connection transition portion in interference fit face and all wall openings
Impulse force can increase several intermediate inclines and transition plane.In order to further be convenient for assembling, referring to Fig. 7 to Fig. 8, interior cap week
Wall opening 22 can be set to horn-like structure.Changeover portion in above-described embodiment may not be intermediate incline or intermediate incline
Between be connected with transition plane, referring to Fig. 9 to Figure 12, it is waveform knot to be interference fitted the changeover portion between face and all wall openings axially
Structure, the wavy shaped configuration, peripheral wall 41 is planar structure at wave crest, and peripheral wall 42 can be planar structure or V-structure, wave at trough
The internal diameter of peripheral wall is identical as peripheral wall opening internal diameter at peak, and internal diameter is identical as internal diameter at interference fit face at trough.
To keep interior cap structure simple, referring to Figure 13 to Figure 15, interval pressure is equipped with several grooves in the peripheral wall axial direction of interior cap 5
51.Groove can also can at an angle be set as inclined groove with interior cap shaft to parallel with axial.Pass through the recessed of setting
Slot, in the cooperation of outer cap when on interior cap, the coordinate contact surfac between outer cap and interior cap increases, then improves pulling capacity；And and axis
To groove at an angle, when testing pulling capacity, since inclined groove provides radial resistance, then than being put down with axial
The pulling capacity higher of capable groove.It is not provided with transition part between interference fit face 52 and all wall openings 53 on interior cap peripheral wall,
All wall openings 53 are horn-like structure.In order to reduce assembling difficulty, interference fit face 52 may be set to be to be tilted with certain
Angled arrangement.
In order to easy to assembly, interior cap can not also use peripheral wall opening inside diameter to be more than the structure of fuse shell outer diameter, join
See Figure 16 to Figure 17, the peripheral wall shape of interior cap is cylindrical shape, and internal diameter is less than fuse shell outer diameter.In all wall openings 6
On, it is in axial direction spaced apart and is equipped with several open slots 61, row's salient point 62, root are arranged at intervals with along circumferential direction in peripheral wall
According to needs, salient point may be set to be two rows or more.It is the advantages of peripheral wall opening opens up open slot in interior cap interference
When cooperation assembling, due to the presence of open slot, all wall openings are easy to be softened, and interior cap is made to be easier assembled riveting.In order to
Further make assembling simple, referring to Figure 18, the peripheral wall for offering open slot can be opened 7 make it is horn-like.Salient point is matched in outer cap
Close ensures the pulling capacity test request of product when on interior cap, simple in structure, and technological forming requires high, the dot shape of the program
It is not limited to ellipse, can be round, diamond shape or various shapes are used in combination.
Above-mentioned various interior cap structures can also be adopted according to actual needs using interference fit between interior cap and fuse shell
Coordinated with transition.Above-mentioned various interior cap structures make interior cap assembling is riveted on fuse shell to be easier.And due to interior cap knot
Be configured shape change, for example, interior cap opening become larger or flare mouth, on interior cap be arranged multistage various outer diameter riveting knot
Structure is set as rough structure on interior cap periphery wall, is arranged in a row or several salient points arranged etc. on interior cap periphery wall
The change of cap periphery wall construction, makes outer cap after being cooperated on interior cap, and outer cap and interior cap coordinate the closer of contact, and by recessed
Slot, fin, salient point, flare openings etc. provide radially contacting with for interior cap and outer cap when being riveted on interior cap for outer cap, testing
When pulling capacity, outer cap is stopped due to the radially facing surface between being coordinated by interior cap, more difficult to be detached from from interior cap, from
And fuse test pulling capacity is improved, so that outer cap and interior cap is coordinated closer secured.
Claims (9)
1. a kind of interior cap of fuse offers the through-hole passed through for melt, the week of the interior cap on the end wall of the interior cap
Wall interference or transition cooperation are on the periphery wall at the both ends of fuse shell, it is characterised in that in the peripheral wall close to the fusing
One end of device shell end face is interference or transition mating surface, and the interference or transition mating surface internal diameter are less than the fuse shell
Periphery wall outer diameter；The internal diameter of all wall openings of the interior cap is more than the outer diameter of the fuse shell periphery wall.
2. the interior cap of fuse according to claim 1, it is characterised in that the interference fit face and all wall openings
Between the interior cap inner peripheral portion structure setting be one or several interconnections internal diameter intermediate incline incremented by successively.
3. the interior cap of fuse according to claim 2, it is characterised in that passed through between the adjacent intermediate incline
Cross plane connection.
4. the interior cap of fuse according to claim 1, it is characterised in that the interference or transition mating surface with it is described
It is wavy shaped configuration that the interior cap inner peripheral portion structure is axially disposed between all wall openings, the trough of the wavy shaped configuration
Internal diameter is identical as the internal diameter of the interference or transition mating surface.
5. the interior cap of fuse according to claim 4, it is characterised in that the wave crest of the wavy shaped configuration is planar junction
Structure, the trough are planar structure or V-structure.
6. the interior cap of fuse according to claim 1, it is characterised in that the peripheral wall opening shape is flare openings.
7. the interior cap of fuse according to claim 1, it is characterised in that the interference or transition mating surface be internal diameter gradually
Secondary incremental inclined-plane.
8. the interior cap of fuse according to claim 1, it is characterised in that offered on the periphery wall of the interior cap with
The interior cap shaft is to several parallel or angled grooves.
9. a kind of interior cap of fuse offers the through-hole passed through for melt, the week of the interior cap on the end wall of the interior cap
Wall interference or transition cooperation are on the periphery wall at the both ends of fuse shell, it is characterised in that on all wall openings of the interior cap
Around perimeter, it is arranged at intervals with the open slot parallel with axial direction, around week on the peripheral wall positioned at the open slot side
It is long to be arranged at intervals with a row or number row's salient point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721459897.XU CN207818505U (en) | 2017-11-03 | 2017-11-03 | A kind of interior cap of fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721459897.XU CN207818505U (en) | 2017-11-03 | 2017-11-03 | A kind of interior cap of fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207818505U true CN207818505U (en) | 2018-09-04 |
Family
ID=63333545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721459897.XU Active CN207818505U (en) | 2017-11-03 | 2017-11-03 | A kind of interior cap of fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207818505U (en) |
-
2017
- 2017-11-03 CN CN201721459897.XU patent/CN207818505U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 710075 Zhongrong Electric Industrial Base, No. 97, Jinye Second Road, High tech Zone, Xi'an, Shaanxi Patentee after: XI'AN ZHONGRONG ELECTRIC Co.,Ltd. Address before: 710068 Room 3-10303, East Area, Modern Enterprise Center, No. 12, Zone A, Venture R&D Park, No. 69, Jinye Road, High tech Zone, Xi'an, Shaanxi Patentee before: XI'AN ZHONGRONG ELECTRIC Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |