CN204289344U - Fuse - Google Patents
Fuse Download PDFInfo
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- CN204289344U CN204289344U CN201420735753.2U CN201420735753U CN204289344U CN 204289344 U CN204289344 U CN 204289344U CN 201420735753 U CN201420735753 U CN 201420735753U CN 204289344 U CN204289344 U CN 204289344U
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- fuse
- magnetic part
- groove
- metal part
- protuberance
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Abstract
The utility model discloses a kind of fuse, described fuse comprises: fuse metal part; First shell and second housing, described fuse metal part is clamped between described first shell and described second housing; And first magnetic part and the second magnetic part, on the upper surface that described first magnetic part is located at described first shell and described first shell between described first magnetic part and described fuse metal part, on the lower surface that described second magnetic part is located at described second housing and described second housing between described second magnetic part and described fuse metal part, the polarity of the upper end of described first magnetic part is identical with the polarity of the upper end of described second magnetic part.Have according to the fuse of the utility model embodiment that the arc extinction time is short, arc quenching effect good, fail safe advantages of higher.
Description
Technical field
The present invention relates to a kind of fuse.
Background technology
Existing fuse produces electric arc when fusing, and the fall time of this electric arc is longer, thus causes the fail safe of existing fuse poor.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the present invention proposes a kind of fuse with the advantage that the arc extinction time is short, arc quenching effect good, fail safe is high.
Fuse according to the embodiment of the present invention comprises: fuse metal part; First shell and second housing, described fuse metal part is clamped between described first shell and described second housing; And first magnetic part and the second magnetic part, on the upper surface that described first magnetic part is located at described first shell and described first shell between described first magnetic part and described fuse metal part, on the lower surface that described second magnetic part is located at described second housing and described second housing between described second magnetic part and described fuse metal part, the polarity of the upper end of described first magnetic part is identical with the polarity of the upper end of described second magnetic part.
Have according to the fuse of the embodiment of the present invention that the arc extinction time is short, arc quenching effect good, fail safe advantages of higher.
In addition, fuse according to the above embodiment of the present invention can also have following additional technical characteristic:
Described fuse metal part comprises: the first construction section and the second construction section, and described first construction section is connected with second housing with described first shell, and described second construction section is connected with described second housing with described first shell; And fuse segment, one end of described fuse segment is connected with described first construction section, and the other end of described fuse segment is connected with described second construction section.
Described fuse segment has protuberance, and described fuse segment is provided with the groove of through along the vertical direction described protuberance, the open at one end of described groove and the edge of the contiguous described protuberance of the other end.
The upper end of described first magnetic part and the upper end of described second magnetic part are N pole, the lower end of described first magnetic part and the lower end of described second magnetic part are S pole, wherein said protuberance protrudes backward, the front end of described groove is opened wide and the rear edge of the contiguous described protuberance in rear end, the left end of described fuse metal part is suitable for being connected with positive pole, and the right-hand member of described fuse metal part is suitable for being connected with negative pole.
Described fuse segment is provided with the left groove of through along the vertical direction described fuse segment and right groove, the rear end of described left groove and the rear end of described right groove all unlimited, form described protuberance between described left groove and described right groove.
The lower end of described first magnetic part and the lower end of described second magnetic part are N pole, the upper end of described first magnetic part and the upper end of described second magnetic part are S pole, wherein said protuberance protrudes backward, the front end of described groove is opened wide and the rear edge of the contiguous described protuberance in rear end, the left end of described fuse metal part is suitable for being connected with negative pole, and the right-hand member of described fuse metal part is suitable for being connected with positive pole.
Described fuse segment is provided with the left groove of through along the vertical direction described fuse segment and right groove, the rear end of described left groove and the rear end of described right groove all unlimited, form described protuberance between described left groove and described right groove.
Described fuse metal part is sheet.
The upper surface of described first shell is provided with the first holding tank, and described first magnetic part is located in described first holding tank, and the lower surface of described second housing is provided with the second holding tank, and described second magnetic part is located in described second holding tank.
Described first shell and described second housing are riveted on described fuse metal part.
Accompanying drawing explanation
Fig. 1 is the structural representation of the fuse according to the embodiment of the present invention;
Fig. 2 is the explosive view of the fuse according to the embodiment of the present invention;
Fig. 3 is the structural representation of the fuse metal part of fuse according to the embodiment of the present invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Below with reference to the accompanying drawings fuse 10 according to the embodiment of the present invention is described.As shown in Figure 1-Figure 3, fuse metal part 101, first shell 102, second housing 103, first magnetic part 104 and the second magnetic part 105 is comprised according to the fuse 10 of the embodiment of the present invention.
Fuse metal part 101 is clamped between the first shell 102 and second housing 103.First magnetic part 104 is located on the upper surface of the first shell 102, and the first shell 102 is between the first magnetic part 104 and fuse metal part 101.Second magnetic part 105 is located on the lower surface of second housing 103, and second housing 103 is between the second magnetic part 105 and fuse metal part 101.The polarity of the upper end of the first magnetic part 104 is identical with the polarity of the upper end of the second magnetic part 105.
In other words, when the upper end of the first magnetic part 104 is N pole, the upper end of the second magnetic part 105 is also N pole.When the upper end of the first magnetic part 104 is S pole, the upper end of the second magnetic part 105 is also S pole.
According to the fuse 10 of the embodiment of the present invention by arranging the first magnetic part 104 and the second magnetic part 105, thus under the effect of Electric and magnetic fields, namely electrical conductor produces power in magnetic field, the electric arc produced when fuse metal part 101 can fuse by this power pulls to the position away from fuse metal part 101, thus can elongating arc, and allow fuse metal part 101 away from electric arc, thus accelerate arc extinguishing.
Therefore, have according to the fuse 10 of the embodiment of the present invention that the arc extinction time is short, arc quenching effect good, fail safe advantages of higher.
Particularly, the fuse 10 according to the embodiment of the present invention can be connected with the control circuit of electric automobile, and the cutting-off controlling circuit in time when control circuit occurs abnormal, to protect the safety of electric automobile and the person.
As shown in Figure 1-Figure 3, fuse metal part 101, first shell 102, second housing 103, first magnetic part 104 and the second magnetic part 105 is comprised according to the fuse 10 of some embodiments of the present invention.
Fuse metal part 101 comprises the first construction section 1011, second construction section 1012 and fuse segment 1013.First construction section 1011 is connected with second housing 103 with the first shell 102, and the second construction section 1012 is connected with second housing 103 with the first shell 102.
Advantageously, the first shell 102 and second housing 103 are riveted on fuse metal part 101.In other words, first construction section 1011 is provided with the first rivet hole, first shell 102 and each in second housing 103 are provided with second rivet hole relative with this first rivet hole, second construction section 1012 is provided with the 3rd rivet hole, and the first shell 102 and each in second housing 103 are provided with four rivet hole relative with the 3rd rivet hole.First construction section 1011 can by the first rivet on the first shell 102 and second housing 103, and the second construction section 1012 can by the second rivet on the first shell 102 and second housing 103.
As shown in Figure 3, in one embodiment of the invention, one end of fuse segment 1013 is connected with the first construction section 1011, and the other end of fuse segment 1013 is connected with the second construction section 1012.Particularly, the left end of fuse segment 1013 is connected with the right-hand member of the first construction section 1011, and the right-hand member of fuse segment 1013 is connected with the left end of the second construction section 1012.
Wherein, fuse segment 1013 has protuberance 10133, and fuse segment 1013 is provided with the groove 10134 of through along the vertical direction protuberance 10133, the open at one end of groove 10134 and the edge of the contiguous protuberance 10133 of the other end of groove 10134.
Specifically, as shown in Figure 2, a part for groove 10134 is positioned on protuberance 10133, and the remainder of groove 10134 is positioned in the part except protuberance 10133 of fuse segment 1013.This remainder of groove 10134 open ended.
The edge of the contiguous protuberance 10133 of the other end due to groove 10134, the two parts being therefore positioned at the both sides of groove 10134 are easy to disconnect.That is, when the operating current of circuit exceedes rated current, fuse metal part 101 can disconnect from groove 10134 in time, thus can improve the fail safe of fuse 10 better.In other words, protuberance 10133 can be the fuse of fuse metal part 101.
And, fuse 10 according to the embodiment of the present invention passes through to arrange protuberance 10133 on fuse metal part 101, thus the electric arc produced when fuse 10 fuses is positioned at one side of fuse 10, under the effect of Electric and magnetic fields, can by this arc offset to the another side not having protuberance 10133, thus can elongating arc, and allow protuberance 10133 away from electric arc, thus accelerate arc extinguishing.Such as, when protuberance 10133 protrudes backward, the electric arc produced when fuse 10 fuses is positioned at the rear end of fuse 10, and under the effect of Electric and magnetic fields, electric arc is subject to active force forward, so that by arc offset to the another side not having protuberance 10133.
Advantageously, fuse metal part 101 can be sheet.Fuse metal part 101 can be made up of silver, copper or yellow gold.Such as, fuse metal part 101 can by red copper punch forming.First construction section 1011 can be provided with the first installing hole, the second construction section 1012 can be provided with the second installing hole, fuse metal part 101 can by being arranged on protected circuit through the screw of this first installing hole and this second installing hole.
When assembling fuse 10, the position of protuberance 10133 can be indicated.After assembling can according to lefft-hand rule determine install time both positive and negative polarity, reach effective arc quenching effect with this.
In one embodiment of the invention, the upper end of the first magnetic part 104 and the upper end of the second magnetic part 105 are N pole, and the lower end of the first magnetic part 104 and the lower end of the second magnetic part 105 are S pole.Wherein, as shown in Figure 1, protuberance 10133 protrudes backward, and the front end of groove 10134 is opened wide, and the rear edge of the contiguous protuberance 10133 in the rear end of groove 10134.
The left end of fuse metal part 101 is suitable for being connected with positive pole, and the right-hand member of fuse metal part 101 is suitable for being connected with negative pole.In other words, after fuse 10 is linked into circuit, the left end of fuse metal part 101 is connected with positive pole, and the right-hand member of fuse metal part 101 is connected with negative pole, and electric current flows to right-hand member from the left end of fuse metal part 101.
Specifically, the upper end of the first magnetic part 104 and the upper end of the second magnetic part 105 are N pole, then according to lefft-hand rule, (left hand is open and flat, thumb with all the other four refer to vertical, if the magnetic line of force vertically enters the palm of the hand, four point to the sense of current, then thumb direction is direction stressed in current－carrying conductor outside magnetic field), the centre of the palm of palm is downward.If make electric arc be subject to active force forward (namely thumb points to front), then all the other four refer to point to right.That is, the left end of fuse 10 is positive pole, and the right-hand member of fuse 10 is negative pole.
Protuberance 10133 also can protrude forward, the rear end open of groove 10134, and the forward position of the contiguous protuberance 10133 in the front end of groove 10134.Now, the left end of fuse 10 is negative pole, and the right-hand member of fuse 10 is positive pole.
As shown in Figure 3, in an example of the present invention, fuse segment 1013 is provided with left groove 10131 and the right groove 10132 of through along the vertical direction fuse segment 1013, the rear end of left groove 10131 and the rear end of right groove 10132 all unlimited, form protuberance 10133 between left groove 10131 and right groove 10132.
In another embodiment of the present invention, the lower end of the first magnetic part 104 and the lower end of the second magnetic part 105 are N pole, and the upper end of the first magnetic part 104 and the upper end of the second magnetic part 105 are S pole.Wherein, protuberance 10133 protrudes backward, and the front end of groove 10134 is opened wide, and the rear edge of the contiguous protuberance 10133 in the rear end of groove 10134.
The left end of fuse metal part 101 is suitable for being connected with negative pole, and the right-hand member of fuse metal part 101 is suitable for being connected with positive pole.In other words, after fuse 10 is linked into circuit, the left end of fuse metal part 101 is connected with negative pole, and the right-hand member of fuse metal part 101 is connected with positive pole, and electric current flows to left end from the right-hand member of fuse metal part 101.
Specifically, the lower end of the first magnetic part 104 and the lower end of the second magnetic part 105 are N pole, then according to lefft-hand rule, the centre of the palm of palm upwards.If make electric arc be subject to active force forward (namely thumb points to front), then all the other four refer to point to left.That is, the left end of fuse 10 is negative pole, and the right-hand member of fuse 10 is positive pole.
Protuberance 10133 also can protrude forward, the rear end open of groove 10134, and the forward position of the contiguous protuberance 10133 in the front end of groove 10134.Now, the left end of fuse 10 is positive pole, and the right-hand member of fuse 10 is negative pole.
Wherein, as illustrated by the arrows in fig. 1, as indicated by arrows in fig. 1 and fig. 2, fore-and-aft direction as indicated by arrows in fig. 1 and fig. 2 for left and right directions for above-below direction.
In another example of the present invention, fuse segment 1013 is provided with left groove 10131 and the right groove 10132 of through along the vertical direction fuse segment 1013, the rear end of left groove 10131 and the rear end of right groove 10132 all unlimited, form protuberance 10133 between left groove 10131 and right groove 10132.
First shell 102 and second housing 103 can be made up of insulation, fire-retardant and resistant to elevated temperatures nonmetallic materials.Such as, the first shell 102 and second housing 103 can be made up of PC, pottery or bakelite etc.
As shown in figures 1 and 3, in examples more of the present invention, the upper surface of the first shell 102 is provided with the first holding tank 1021, first magnetic part 104 is located in the first holding tank 1021, the lower surface of second housing 103 is provided with the second holding tank 1031, second magnetic part 105 and is located in the second holding tank 1031.Not only can make the structure of fuse 10 more rationally, succinctly thus, and the first magnetic part 104 and the second magnetic part 105 can be installed more securely.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. a fuse, is characterized in that, comprising:
Fuse metal part;
First shell and second housing, described fuse metal part is clamped between described first shell and described second housing; And
First magnetic part and the second magnetic part, on the upper surface that described first magnetic part is located at described first shell and described first shell between described first magnetic part and described fuse metal part, on the lower surface that described second magnetic part is located at described second housing and described second housing between described second magnetic part and described fuse metal part, the polarity of the upper end of described first magnetic part is identical with the polarity of the upper end of described second magnetic part.
2. fuse according to claim 1, is characterized in that, described fuse metal part comprises:
First construction section and the second construction section, described first construction section is connected with second housing with described first shell, and described second construction section is connected with described second housing with described first shell; And
Fuse segment, one end of described fuse segment is connected with described first construction section, and the other end of described fuse segment is connected with described second construction section.
3. fuse according to claim 2, is characterized in that, described fuse segment has protuberance, and described fuse segment is provided with the groove of through along the vertical direction described protuberance, the open at one end of described groove and the edge of the contiguous described protuberance of the other end.
4. fuse according to claim 3, it is characterized in that, the upper end of described first magnetic part and the upper end of described second magnetic part are N pole, the lower end of described first magnetic part and the lower end of described second magnetic part are S pole, wherein said protuberance protrudes backward, the front end of described groove is opened wide and the rear edge of the contiguous described protuberance in rear end, and the left end of described fuse metal part is suitable for being connected with positive pole, and the right-hand member of described fuse metal part is suitable for being connected with negative pole.
5. fuse according to claim 4, it is characterized in that, described fuse segment is provided with the left groove of through along the vertical direction described fuse segment and right groove, the rear end of described left groove and the rear end of described right groove all unlimited, form described protuberance between described left groove and described right groove.
6. fuse according to claim 3, it is characterized in that, the lower end of described first magnetic part and the lower end of described second magnetic part are N pole, the upper end of described first magnetic part and the upper end of described second magnetic part are S pole, wherein said protuberance protrudes backward, the front end of described groove is opened wide and the rear edge of the contiguous described protuberance in rear end, and the left end of described fuse metal part is suitable for being connected with negative pole, and the right-hand member of described fuse metal part is suitable for being connected with positive pole.
7. fuse according to claim 6, it is characterized in that, described fuse segment is provided with the left groove of through along the vertical direction described fuse segment and right groove, the rear end of described left groove and the rear end of described right groove all unlimited, form described protuberance between described left groove and described right groove.
8. fuse according to claim 1, is characterized in that, described fuse metal part is sheet.
9. fuse according to claim 1, it is characterized in that, the upper surface of described first shell is provided with the first holding tank, described first magnetic part is located in described first holding tank, the lower surface of described second housing is provided with the second holding tank, and described second magnetic part is located in described second holding tank.
10. fuse according to claim 1, is characterized in that, described first shell and described second housing are riveted on described fuse metal part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420735753.2U CN204289344U (en) | 2014-11-28 | 2014-11-28 | Fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420735753.2U CN204289344U (en) | 2014-11-28 | 2014-11-28 | Fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204289344U true CN204289344U (en) | 2015-04-22 |
Family
ID=52872478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420735753.2U Active CN204289344U (en) | 2014-11-28 | 2014-11-28 | Fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204289344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112713069A (en) * | 2020-12-22 | 2021-04-27 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Quick direct current fuse |
-
2014
- 2014-11-28 CN CN201420735753.2U patent/CN204289344U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112713069A (en) * | 2020-12-22 | 2021-04-27 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Quick direct current fuse |
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