CN207425772U - A kind of hemisphere patch type fuse - Google Patents
A kind of hemisphere patch type fuse Download PDFInfo
- Publication number
- CN207425772U CN207425772U CN201721194692.3U CN201721194692U CN207425772U CN 207425772 U CN207425772 U CN 207425772U CN 201721194692 U CN201721194692 U CN 201721194692U CN 207425772 U CN207425772 U CN 207425772U
- Authority
- CN
- China
- Prior art keywords
- insulation shell
- baffle ring
- hemisphere
- patch type
- type 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 - Fee Related
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- Fuses (AREA)
Abstract
A kind of hemisphere patch type fuse, including：Insulation shell is in hemispherical, and is in hollow form inside the insulation shell；Mounting base is arranged in the insulation shell, and the section of the mounting base is in the upward triangle in tip, and mounting groove is provided in the mounting base；Fusible link, in the upward fold-line-shaped in tip, the fusible link is placed in the mounting groove；Two binding posts are penetrated into outside the insulation shell bottom surface in the insulation shell, and two binding posts are connected respectively with the both ends of fusible link；The annular baffle ring that at least two circles are arranged concentrically, the annular baffle ring are fixed at the lower surface of the insulation shell, leave gap between two neighboring baffle ring, the binding post is located within the annular baffle ring of innermost circle.
Description
Technical field
The utility model is related to a kind of fuse, more particularly to a kind of hemisphere patch type fuse.
Background technology
Fuse is by the Joule heat for flowing through electric current in meltability metallic object itself to be made to fuse to cut off circuit to protect
Protection circuit.The second half in 19th century, fuse come into being with the invention of the various electrical equipments headed by electric light, hereafter,
The structure type of fuse does not change substantially, and continues up so far.
Miniaturization and Surface Mounting Technology with electronic component, fuse also move towards minitype paster, patch type insurance therewith
The application of silk is more and more wide, they are in computer and Peripheral Interface, flat panel TV, mobile phone, electrical automotive circuits and battery pack etc.
It has exhibited one's skill to the full in overcurrent protection.In addition to common fusing type fuse, in recent years, PPTC self-resetting type fuse (polymer
Posive temperature coefficient thermistor) rise, the protection of more information technoloy equipment brings the new situation, and paster fuse is in minitype fuse
It is the relatively high new varieties of technology content in industry.Under normal circumstances, paster fuse can be divided into patch current insurance silk and
Patch resettable fuse.Conventional Chip-R silk is rectangular shape at present, is placed directly against on circuit board not only unsightly,
And it is insecure, if by external force spreading or shock, easily come off.
Utility model content
The purpose of the utility model is to overcome conventional patch fuse is insecure, easily by dust, moisture attack the defects of, carry
A kind of hemisphere patch type fuse is supplied.
A kind of hemisphere patch type fuse, which is characterized in that including：
Insulation shell is in hemispherical, and is in hollow form inside the insulation shell；
Mounting base is arranged in the insulation shell, and the section of the mounting base is in the upward triangle in tip, the peace
Mounting groove is provided on dress seat；
Fusible link, in the upward fold-line-shaped in tip, the fusible link is placed in the mounting groove；
Two binding posts are penetrated into outside the insulation shell bottom surface in the insulation shell, and two binding posts point
It is not connected with the both ends of fusible link；
The annular baffle ring that at least two circles are arranged concentrically, the annular baffle ring are fixed at the lower surface of the insulation shell,
Gap is left between two neighboring baffle ring, the binding post is located within the annular baffle ring of innermost circle.
Preferably, the binding post is made of copper alloy.
Preferably, the annular baffle ring is provided with three circles.
Preferably, the section of the baffle ring is in the downward triangle in tip.
Preferably, the baffle ring is made of rubber material.
The beneficial effects of the utility model are：Hemisphere patch type fuse provided by the utility model uses hemispherical knot
Structure increases the contact surface with circuit board, and protrusion is dome-type, and no corner angle considerably increase supporting for external impacts
Drag.By designing fold-line-shaped fusible link, ensureing its quick fuse and thoroughly disconnecting.It is right by setting three circle annular retaining rings
Hemisphere patch type fuse plays the role of protection.
Description of the drawings
Fig. 1 is hemisphere patch type fuse overall structure sectional view described in the utility model.
Fig. 2 is hemisphere patch type fuse general structure schematic diagram described in the utility model.
Fig. 3 is mounting base structure diagram described in the utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
As described in Figure 1, the utility model provides a kind of hemisphere patch type fuse, including insulation shell 1, mounting base 2, melts
Fracture of wire 3, binding post 4 and annular baffle ring 5.
Together refering to Fig. 2, the insulation shell 1 is in hemispherical, and 1 inside of the insulation shell is hollow form.
Mounting base 2 has been located inside the insulation shell 1 refering to Fig. 3 together, the mounting base 2 is regular triangular prism shape,
One of rectangular surfaces are mutually fixed with the lower surface inside insulation shell 1 in three rectangular surfaces of the mounting base 2, other two square
A groove is respectively arranged on shape face, and the two grooves are mutually connected, so as to form the mounting groove 21 for shape of discounting.
The fusible link 3 is mounted in the mounting groove 21, so that the fusible link 3 is also in fold-line-shaped, and its tip
On the top.
Two 4 one end of binding post are located at outside 1 bottom surface of insulation shell, and the other end enters described exhausted through 1 bottom surface of insulation shell
In edge shell, both ends of two binding posts 4 respectively with fusible link 3 are connected.Preferred as one kind, the binding post 4 is closed using copper
Gold is made.
The annular baffle ring 5 that three circles are arranged concentrically is fixed in 1 subjacent of insulation shell, the annular baffle ring 5 uses
Rubber material is made.The binding post 4 is located within the annular baffle ring 5 of innermost circle.
As a kind of preferred, the rectangular triangle in section of the annular baffle ring 5, a right-angle side and 1 bottom of insulation shell
Face overlaps, and another right-angle side is located at outside, and bevel edge is located inside, so that the bottom of right angled triangle is a cusp.
Hemisphere patch type fuse provided by the utility model using when be installed on circuit board, due to insulation shell 1
For hemispherical, the contact surface with circuit board is increased, and protrusion is dome-type, and no corner angle considerably increase external force punching
The resistance hit.
Fusible link 3 is mounted in fold-line-shaped in mounting base 2, when the electric current flowed through in fusible link 3 is excessive, 3 meeting of fusible link
It generates heat and then fuses.Due to the limitation of 21 shape of mounting groove, after fusible link 3 fuses, 3 liquid material of fusible link can be along mounting groove
21 slide from top to bottom, so as to reduce the time of circuit disconnection.Simultaneously as liquid material can be slipped to the most bottom of mounting groove 21
Then portion solidifies again, ensure that fusible link 3 will not turn on or be formed again virtual connection.If 3 level of fusible link prevents, fusing
While, if subjected to slight vibration may make apart very near of material after fusing, easily form virtual connection, and the utility model
By the way that fusible link 3 is arranged to broken line row, ensure its quick fuse and is thoroughly disconnected.
The utility model when by the installation of hemisphere patch type fuse on circuit boards, makes ring by setting annular baffle ring 5
For shape baffle ring 5 between insulation shell 1 and circuit board, dust and moisture outside annular baffle ring 5 will not enter annular baffle ring 5
It is interior to be contacted with binding post 4, so as to play the role of protection to hemisphere patch type fuse.The section of annular baffle ring 5 is set into point
Point triangle directed downwardly, i.e. 5 upper thickness of annular baffle ring is thick, and lower part thickness is thin, makes its upper part convenient for being consolidated with insulation shell 1
It is fixed, and bottom thin makes its underpart elasticity more preferably, the effect of sealing is more preferable.
The utility model is not merely to realize 3 times of protection effect by setting three ring shape baffle rings 5.Assuming that only
There is a ring shape baffle ring 5, when having water droplet outside the annular baffle ring 5, if there is the poor sealing in some region, then root
According to capillary phenomenon, water droplet can pass through this bad region of sealing, and then water can be covered with the inner ring and circuit board of annular baffle ring 5
Seam crossing, at this time water evaporation into vapor so that corrode binding post 4.And it two is enclosed by arranging two ring shape baffle rings 5, and by this
Certain gap is reserved between annular baffle ring 5, then is just thoroughly solved the influence of capillary phenomenon, will not be made vapor butted line
Column 4 causes to corrode.
Although the embodiment of the utility model is disclosed as above, it is not restricted in specification and embodiment
Listed utilization.It can be applied to the field of various suitable the utility model completely.For those skilled in the art,
Other modification is easily achieved.Therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (5)
1. a kind of hemisphere patch type fuse, which is characterized in that including：
Insulation shell is in hemispherical, and is in hollow form inside the insulation shell；
Mounting base is arranged in the insulation shell, and the section of the mounting base is in the upward triangle in tip, the mounting base
On be provided with mounting groove；
Fusible link, in the upward fold-line-shaped in tip, the fusible link is placed in the mounting groove；
Two binding posts are penetrated into outside the insulation shell bottom surface in the insulation shell, and two binding posts respectively with
The both ends connection of fusible link；
The annular baffle ring that at least two circles are arranged concentrically, the annular baffle ring is fixed at the lower surface of the insulation shell, adjacent
Gap is left between two baffle rings, the binding post is located within the annular baffle ring of innermost circle.
2. hemisphere patch type fuse according to claim 1, which is characterized in that the binding post uses copper alloy system
Into.
3. hemisphere patch type fuse according to claim 1 or 2, which is characterized in that the annular baffle ring is provided with three
Circle.
4. hemisphere patch type fuse according to claim 3, which is characterized in that the section of the baffle ring is downward in tip
Triangle.
5. hemisphere patch type fuse according to claim 4, which is characterized in that the baffle ring uses rubber material system
Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721194692.3U CN207425772U (en) | 2017-09-18 | 2017-09-18 | A kind of hemisphere patch type fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721194692.3U CN207425772U (en) | 2017-09-18 | 2017-09-18 | A kind of hemisphere patch type fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207425772U true CN207425772U (en) | 2018-05-29 |
Family
ID=62313532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721194692.3U Expired - Fee Related CN207425772U (en) | 2017-09-18 | 2017-09-18 | A kind of hemisphere patch type fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207425772U (en) |
-
2017
- 2017-09-18 CN CN201721194692.3U patent/CN207425772U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180529 Termination date: 20180918 |