CN207458874U - High current self- recoverage insures resistance - Google Patents
High current self- recoverage insures resistance Download PDFInfo
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- CN207458874U CN207458874U CN201721606029.XU CN201721606029U CN207458874U CN 207458874 U CN207458874 U CN 207458874U CN 201721606029 U CN201721606029 U CN 201721606029U CN 207458874 U CN207458874 U CN 207458874U
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Abstract
The utility model discloses a kind of high current self- recoverages to insure resistance, including substrate, two electrode units, insure resistive layer and positive protection location, the substrate includes top surface and bottom surface, described two electrode units are respectively arranged at the two opposite sides of substrate, the protective resistance layer is arranged at the top surface of substrate, the protective resistance layer includes central portion and extension, the central portion is arranged at the top surface of substrate, the extension extends to form around from central portion, and the extension is connected with electrode unit, the positive protection location includes inner protective layer and external protection, the inner protective layer includes intermediate protection section and around protection section, protection section is used to cover the central portion of protective resistance layer among described, it is described to extend outwardly around protection section from intermediate protection section, and it covers and connects the subregion of each electrode unit.Above-mentioned self- recoverage insurance resistance sealing effect is preferable, and can effectively achieve the purpose that slimming.
Description
Technical field
The utility model is related to insure resistance, more particularly to a kind of high current self- recoverage insurance resistance.
Background technology
Insurance resistance has the function of conventional, electric-resistance under normal circumstances, once circuit breaks down, more than its specified work(
During rate, it understands disconnecting circuit at the appointed time, so as to have the function that the other components of protection.Insurance resistance is divided into and can not repair
Replica and can two kinds of repairing type.Can not double insurance resistance shape and common metal film resistance it is very much like, when overload causes temperature
When degree rises and reaches a certain temperature, the different electrolemma layer or winding wire turn that scribble fusing material disconnect circuit with regard to automatic fusing.It can
Double insurance resistance is sealed in after conventional, electric-resistance is concatenated with low-melting-point metal in a shell, in cylindrical type, resistive element
One end a piece elastic sheet metal or wire are welded using eutectic solder, when overheat, solder joint melts first, elasticity gold
Belong to piece or wire just to disconnect with resistor.
With the development of science and technology various electronic equipments and the electronic component that is installed in electronic equipment are progressively towards frivolous short
Small direction is developed, and therefore, self- recoverage insurance resistance slimming how to be made to become technical problem to be solved.
Utility model content
In view of the above shortcomings of the prior art, technical problem to be solved in the utility model is：A kind of slimming is provided
High current self- recoverage insurance resistance.
A kind of high current self- recoverage insurance resistance provided by the utility model, including substrate, two electrode units, insurance
Resistive layer and positive protection location, the substrate include top surface and bottom surface, and described two electrode units are respectively arranged at the phase of substrate
To both sides, the protective resistance layer is arranged at the top surface of substrate, and the protective resistance layer includes central portion and extension, in described
Centre portion is arranged at the top surface of substrate, and the extension extends to form around from central portion, and the extension and electrode unit
It is connected, the positive protection location includes inner protective layer and external protection, and the inner protective layer includes intermediate protection section and around guarantor
Section is protected, the intermediate protection section is used to cover the central portion of protective resistance layer, described outside around the certainly intermediate protection section of protection section
Extension, and cover and connect the subregion of each electrode unit.
Wherein, each electrode unit includes the first pole, the second pole and the 3rd pole, and first pole is arranged at the top of substrate
Face, second pole are arranged at the bottom surface of substrate, and the 3rd pole is arranged at the side of substrate and extremely electric with the first pole and second
Connection.
Wherein, the extension of the protective resistance layer is connected with the first pole.
Further, the high current self- recoverage insurance resistance further includes two side protection locations, per one side protection location
Including nickel layer and tin layers, the nickel layer is connected with the external protection of positive protection location and covers the part area of all electrode units
Domain, the tin layers are coated on the outside of nickel layer.
Wherein, the high current self- recoverage insurance resistance further includes character code layer, and the character code layer is arranged at the top surface of substrate
Top and positioned at positive protection location external protection on.
A kind of self- recoverage insurance resistance described in the utility model using the inner protective layer of positive protection location, external protection,
Substrate is designed with protective resistance layer interaction cascading, can not only be sealed the first pole and the second pole, be avoided due to contacting outside air
It is sulfided into as insulator, sealing effect is preferable, and can effectively achieve the purpose that slimming.
Description of the drawings
Fig. 1 is a kind of structure diagram of the better embodiment of high current self- recoverage insurance resistance of the utility model.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
It is the knot for the better embodiment that a kind of high current self- recoverage of the utility model insures resistance shown in please referring to Fig.1
Structure schematic diagram.The better embodiment of the high current self- recoverage insurance resistance includes 1, two electrode unit 2 of substrate, insurance electricity
Resistance layer 3,4, two side protection locations 5 of positive protection location and character code layer 6.The substrate 1 has top surface 11 and bottom surface 12.
Described two electrode units 2 are respectively arranged at the opposite sides of substrate 1, and each electrode unit 2 includes one the
One pole 21, one second pole 22 and one the 3rd pole 23.First pole 21 is arranged at the top surface of substrate 1, and second pole 22 is set
In the bottom surface of substrate 1, the 3rd pole 23 is arranged at the side of substrate 1 and is electrically connected with the first pole 21 and the second pole 22.
The insurance resistive layer 3 includes central portion 31 and extension 32, and the central portion 31 is arranged at the top surface of substrate 1
11, the extension 32 from central portion 31 extends and is connected with the first pole 21 around.
The positive protection location 4 includes inner protective layer 41 and external protection 42, and the inner protective layer 41 includes intermediate protect
Section 43 and around protection section 44, it is described among protection section 43 for cover insurance resistive layer 3 central portion 31, it is described around protection
Section 44 protects section 43 to extend outwardly and covers the subregion of each electrode unit 2 from centre.In the external protection 42 is arranged at
The outside of protective layer 41 and the subregion of each electrode unit 2 of masking, while be also electrically connected with each electrode unit 2.
It is described to include nickel layer 51 and tin layers 52 per one side protection location 5, the nickel layer 51 connect the external protection 42 and
The subregion of each electrode unit 2 and substrate 1 is covered, the tin layers 52 are coated on the outside of nickel layer 51.The character code layer 6 is located at
Above the top surface 11 of substrate 1 and it is arranged on the external protection 42 of protection location 4.The character code layer 6 is for radium-shine or printing
Mode product type is set.
In use, 52 bottom surface of tin layers of self- recoverage insurance resistance is welded on circuit board.
A kind of self- recoverage insurance resistance described in the utility model utilizes inner protective layer 41, the external protection of protection location 4
42nd, substrate 1 is designed with 3 interaction cascading of protective resistance layer, can not only seal the first pole 21 and the second pole 22, is avoided outer because contacting
Boundary's air and be sulfided into as insulator, sealing effect is preferable, and can effectively achieve the purpose that slimming.
It these are only the embodiment of the utility model, it does not limit the scope of the patent of the present invention, every profit
The equivalent structure or equivalent flow shift made with the utility model specification and accompanying drawing content, is directly or indirectly used in it
His relevant technical field, is equally included in the patent within the scope of the utility model.
Claims (5)
1. a kind of high current self- recoverage insures resistance, it is characterised in that：It is described insurance resistance include substrate, two electrode units,
Insure resistive layer and positive protection location, the substrate includes top surface and bottom surface, and described two electrode units are respectively arranged at substrate
Opposite sides, the protective resistance layer is arranged at the top surface of substrate, and the protective resistance layer includes central portion and extension, institute
The top surface that central portion is arranged at substrate is stated, the extension extends to form around from central portion, and the extension and electrode
Unit is connected, and the positive protection location includes inner protective layer and external protection, and the inner protective layer includes intermediate protection section and ring
Around protection section, the intermediate protection section is used to cover the central portion of protective resistance layer, described around the certainly intermediate protection section of protection section
Extend outwardly, and cover and connect the subregion of each electrode unit.
2. high current self- recoverage as described in claim 1 insures resistance, it is characterised in that：Each electrode unit includes first
Pole, the second pole and the 3rd pole, first pole are arranged at the top surface of substrate, and second pole is arranged at the bottom surface of substrate, described
3rd pole is arranged at the side of substrate and is electrically connected with the first pole and the second pole.
3. high current self- recoverage as claimed in claim 2 insures resistance, it is characterised in that：The extension of the protective resistance layer
It is connected with the first pole.
4. high current self- recoverage as claimed in claim 3 insures resistance, it is characterised in that：The high current self- recoverage insurance electricity
Resistance further includes two side protection locations, and nickel layer and tin layers are included per one side protection location, and the nickel layer is outer with positive protection location
Protective layer is connected and covers the subregion of all electrode units, and the tin layers are coated on the outside of nickel layer.
5. high current self- recoverage as described in claim 1 insures resistance, it is characterised in that：The high current self- recoverage insurance electricity
Resistance further includes character code layer, and the character code layer is arranged at the top face of substrate and on the external protection of positive protection location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721606029.XU CN207458874U (en) | 2017-11-27 | 2017-11-27 | High current self- recoverage insures resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721606029.XU CN207458874U (en) | 2017-11-27 | 2017-11-27 | High current self- recoverage insures resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207458874U true CN207458874U (en) | 2018-06-05 |
Family
ID=62277304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721606029.XU Active CN207458874U (en) | 2017-11-27 | 2017-11-27 | High current self- recoverage insures resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207458874U (en) |
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2017
- 2017-11-27 CN CN201721606029.XU patent/CN207458874U/en active Active
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