CN204215992U - Photovoltaic fused mass of fuse - Google Patents
Photovoltaic fused mass of fuse Download PDFInfo
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- CN204215992U CN204215992U CN201420768144.7U CN201420768144U CN204215992U CN 204215992 U CN204215992 U CN 204215992U CN 201420768144 U CN201420768144 U CN 201420768144U CN 204215992 U CN204215992 U CN 204215992U
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- fuse
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- segmenting part
- fused mass
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Abstract
The utility model discloses a kind of photovoltaic fused mass of fuse, comprise the body that elongated sheet is arranged, described body is placed with several disjunction holes along its length successively, and described disjunction hole is provided with segmenting part, and remaining sheet in described segmenting part wide is a fixed value.Photovoltaic fused mass of fuse of the present utility model, by being set to a fixed value by wide for the residue sheet of segmenting part inside, would not occur that certain part sheet is excessive wider than little its equivalent resistance that makes like this, breaking capacity is too small, and occurs that this part preferentially fuses the problem of the repeatedly conducting that segmenting part remainder is too much caused.
Description
Technical field
The utility model relates to a kind of electrical structure, relates to a kind of photovoltaic fused mass of fuse in particular.
Background technology
Fuse has very great meaning among each power equipment, can when electric power system is broken down open circuit timely, the problem burnt out caused because of the electric power system of fault to prevent power equipment.
And the part of most critical is the melt be arranged in fusion tube in fuse, melt has a very important index, be breaking capacity, the breaking capacity of fuse is exactly the maximum current that fuse can cut off circuit safely, generally refers to short circuit current.Being exactly specifically point deenergizing that fuse must be able to be perfectly safe when running into short circuit current, namely any unsafe factor not occurring in breaking course, as persistence drag arc, repeatedly conducting, fragmentation, splashing, burning, so that blast etc.Each fuse all must provide device breaking capacity value, and during use, the maximum short circuit current of protected circuit can not be greater than its breaking capacity.
Disjunction structure is used as with reference to existing melt shown in Fig. 1 all can set out several circular holes, this disjunction structure adopts the residue wide minimum relative both sides of sheet as segmenting part, because melt is generally the wide fixing rectangular laminated structure of sheet (segmenting part is that its width deducts the remaining melt of Circularhole diameter), if offer the words of circular hole in the above, the curved setting of segmenting part will be caused, make the residue sheet of segmenting part inside wide from large to small after become large again, so because fuse is rely on the characteristic of the overheated fusing of of melt itself to carry out work in the course of the work, segmenting part preferentially fused so will be made in the process of fusing to remain the wide minimum part of sheet, so when other parts also do not fuse just by circuitry cuts, so just cause the fuse rated current numerical values recited of a specification and breaking capacity numerical values recited problem all less than normal, such as model is the photovoltaic fuse of YRPV-30, its maximum amount is determined electric current and is just only had 15A, breaking capacity also only has 33KA, the width at the existing segmenting part residue wide minimum place of sheet is generally little, so will cause the equivalent resistance of part can be higher, the power consumption of fuse can be made to increase, and owing to remaining the leading fusing of the wide least part of sheet, and other parts do not fuse, and the blowout current of other parts is greater than the blowout current of the wide least part of residue sheet, so after the wide least part fusing of residue sheet, because circular hole disjunction structure residual part is more, be easy to occur again contacting the problem making circuit conducting again, so just be easy to the problem occurring repeatedly conducting, reduce the security performance of fuse.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide the photovoltaic fused mass of fuse that a kind of same specification rated current is large, security performance is high.
For achieving the above object, the utility model provides following technical scheme: a kind of photovoltaic fused mass of fuse, comprise the body that elongated sheet is arranged, described body is placed with several disjunction holes along its length successively, described disjunction hole is provided with segmenting part, and remaining sheet in described segmenting part wide is a fixed value.
By adopting technique scheme, a fixed value is set to by wide for the residue sheet of segmenting part inside, so just can effectively avoid because the part residue sheet of segmenting part inside is wider than the excessive problem making fuse power consumption excessive of little this part equivalent resistance caused, nor there will be certain part in segmenting part and preferentially fuse compared to other parts, reduce rated current and the breaking capacity of fuse, and there will not be because certain part preferentially fuses the problem of the fuse repeatedly conducting causing segmenting part remainder too much to cause.
The utility model is set to further: described disjunction hole is rectangle shape and arranges, and described disjunction hole is arranged on the wide middle part of body sheet, forms the segmenting part be made up of two rectangular pieces.
By adopting technique scheme, just can better On current by disjunction hole and segmenting part being arranged to rectangle, effectively reduce the equivalent resistance of segmenting part, and rectangle is more easily processed compared to other shapes, seem in the process of segmenting part fusing more even, be not easy to occur that certain part preferentially fuses the problem of the repeatedly conducting other parts being contacted repeatedly cause.
The utility model is set to further: described melt is made by copper product.
By adopting technique scheme, copper product has good conductivity and higher fusing point, by rated current and the breaking capacity that just effectively can improve fuse here, also can effectively reduce the power consumption of fuse.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of the photovoltaic fused mass of fuse of prior art;
Fig. 2 is the overall structure figure of photovoltaic fused mass of fuse of the present utility model.
In figure: 1, body; 2, disjunction hole; 3, segmenting part.
Embodiment
With reference to shown in Fig. 2, a kind of photovoltaic fused mass of fuse of the present embodiment, comprises the body 1 that elongated sheet is arranged, described body 1 is placed with several disjunction holes 2 along its length successively, described disjunction hole 2 is provided with segmenting part 3, and remaining sheet in described segmenting part 3 wide is a fixed value.
By adopting technique scheme, when fuse is linked in electric power system, just have electric current in melt to flow through, under normal condition, be a fixed value owing to remaining sheet in segmenting part 3 wide, thus when electric current flows through, the circulation width that melt gives electronics is this fixed value, so the problem that the excessive fuse power consumption caused of certain a part of equivalent resistance of segmenting part 3 is excessive would not be there is, its rated current and breaking capacity all can improve further simultaneously, and when electric power system is broken down, excessive electric current will flow through segmenting part 3, the circulation width giving electronics due to each part in segmenting part 3 is equal (size of current namely flow through is equal), and the equivalent resistance of various piece is also equal in segmenting part 3, and be in same unified power system, thus the currency is also equal, so can draw according to the formula of Q=I2RT, the heat that each position of segmenting part 3 sends also is equal, therefore, when there is overcurrent, in segmenting part 3, various piece is in the state simultaneously fused, so would not occur because certain position of segmenting part 3 preferentially fuses, cause other some residual of segmenting part 3 repeatedly to contact making the problem of fuse repeatedly conducting.
The example that below employing one is concrete is described in further detail above-mentioned mentioned photovoltaic fused mass of fuse.
With reference to shown in Fig. 1, the photovoltaic fuse of to be model the be YRPV-30 that this example adopts, this fuse is when its melt adopts circular hole, due to the residue sheet tolerance system that circular hole causes, the rated current of the photovoltaic fuse of the existing YRPV-30 caused is 15A, breaking capacity is 33KA, through the improvement of Fig. 2, after circular hole is changed to square hole, the residue sheet of segmenting part 3 is wide just seems level and smooth many, detect through external instrument, can find that the melt rated current of photovoltaic fuse in Fig. 2 can up to 20A, its breaking capacity is promoted to 45KA, as can be seen here when same specification, disjunction hole 2 is arranged to square opening and is compared and be arranged to circular port, its rated current and breaking capacity will increase much.
In sum, the utility model is by being arranged to square by disjunction hole 2, by various piece residue in segmenting part 3, sheet is wide is arranged to a fixed value, so just effectively can reduce the power consumption of fuse, increase rated current and the breaking capacity of fuse, the security performance of fuse can also be strengthened simultaneously.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. a photovoltaic fused mass of fuse, comprise the body that elongated sheet is arranged, it is characterized in that: described body is placed with several disjunction holes along its length successively, described disjunction hole is provided with segmenting part, and remaining sheet in described segmenting part wide is a fixed value.
2. photovoltaic fused mass of fuse according to claim 1, is characterized in that: described disjunction hole is rectangle shape and arranges, and described disjunction hole is arranged on the wide middle part of body sheet, forms the segmenting part be made up of two rectangular pieces.
3. photovoltaic fused mass of fuse according to claim 2, is characterized in that: described melt is made by copper product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420768144.7U CN204215992U (en) | 2014-12-09 | 2014-12-09 | Photovoltaic fused mass of fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420768144.7U CN204215992U (en) | 2014-12-09 | 2014-12-09 | Photovoltaic fused mass of fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204215992U true CN204215992U (en) | 2015-03-18 |
Family
ID=52984641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420768144.7U Active CN204215992U (en) | 2014-12-09 | 2014-12-09 | Photovoltaic fused mass of fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204215992U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105400422A (en) * | 2016-01-06 | 2016-03-16 | 浙江新力熔断器有限公司 | Fusant and fuse link with fusant |
| CN107622168A (en) * | 2017-09-26 | 2018-01-23 | 华中科技大学 | A kind of DC fuse relevant parameter determines method |
-
2014
- 2014-12-09 CN CN201420768144.7U patent/CN204215992U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105400422A (en) * | 2016-01-06 | 2016-03-16 | 浙江新力熔断器有限公司 | Fusant and fuse link with fusant |
| CN107622168A (en) * | 2017-09-26 | 2018-01-23 | 华中科技大学 | A kind of DC fuse relevant parameter determines method |
| CN107622168B (en) * | 2017-09-26 | 2019-06-28 | 华中科技大学 | A kind of DC fuse relevant parameter determines method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201123 Address after: No.18 Chenyang Road, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee after: Zheng Hao Address before: 325604 Changchun office building, Changchun Industrial Park, Liushi Town, Yueqing, Zhejiang, Wenzhou Patentee before: ZHEJIANG GALAXY FUSE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210714 Address after: 325604 Changchun Village, Liushi Town, Leqing City, Wenzhou City, Zhejiang Province Patentee after: ZHEJIANG GALAXY FUSE Co.,Ltd. Address before: No.18, Chenyang Road, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province 325600 Patentee before: Zheng Hao |
|
| TR01 | Transfer of patent right |