CN213752170U - Fuse resistor with low surface temperature - Google Patents
Fuse resistor with low surface temperature Download PDFInfo
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- CN213752170U CN213752170U CN202023112827.1U CN202023112827U CN213752170U CN 213752170 U CN213752170 U CN 213752170U CN 202023112827 U CN202023112827 U CN 202023112827U CN 213752170 U CN213752170 U CN 213752170U
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- conductive cap
- insulating tube
- low surface
- temperature
- surface temperature
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Abstract
The utility model belongs to the technical field of the fuse, especially, relate to a fuse resistance of low surface temperature, including insulating tube, first conductive cap, the conductive cap of second, resistance and temperature fuse-element, first conductive cap cup joint in the one end of insulating tube, the conductive cap cup joint of second in the other end of insulating tube, resistance set up in the insulating tube, a lead wire of resistance is followed first conductive cap stretches out, another lead wire of resistance with first conductive cap electric connection, the temperature fuse-element set up in the surface in insulating tube middle section, the temperature fuse-element with first conductive cap with second conductive cap electric connection. Compared with the prior art, the utility model discloses surface temperature when can effectively reduce the disconnection of fuse resistance.
Description
Technical Field
The utility model belongs to the technical field of the fuse, especially, relate to a fuse resistance of low surface temperature.
Background
The fuse resistor has functions of both a resistor and a fuse, and can be used as a resistor at ordinary times, and when the current is abnormal, the fuse can play a role of protecting machine equipment.
The fuse resistor on the market at present has the structure that: the resistance wire is arranged on the surface layer of the product, and the temperature fuse is arranged inside the ceramic tube cavity. This structure has the following disadvantages: 1) when the surface temperature of the product exceeds the action temperature of the temperature fuse, the temperature fuse cannot be disconnected because the heat conducted to the temperature fuse is far less than the heat of the surface, and the temperature fuse can be disconnected when the surface temperature is far higher than the action temperature of the temperature fuse. 2) When the surface temperature is too high, the plastic shell of the client product is easily heated and scalded, and the plastic shell is seriously melted.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: aiming at the defects of the prior art, the fuse resistor with low surface temperature is provided, and the surface temperature of the fuse resistor during disconnection is effectively reduced.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a fuse resistance of low surface temperature, includes insulating tube, first electrically conductive cap, the electrically conductive cap of second, resistance and temperature fuse-element, first electrically conductive cap cup joint in the one end of insulating tube, the electrically conductive cap of second cup joint in the other end of insulating tube, resistance set up in the insulating tube, a lead wire of resistance is followed first electrically conductive cap stretches out, another lead wire of resistance with first electrically conductive cap electric connection, the temperature fuse-element set up in the surface in insulating tube middle section, the temperature fuse-element with first electrically conductive cap with the electrically conductive cap electric connection of second.
It should be noted that the resistor disposed in the insulating tube generates heat when current passes through it, the heat is conducted to the temperature melt from inside to outside through the lead wire at the end of the resistor or air, and when the temperature reaches the operating temperature of the temperature melt, the temperature melt opens the circuit, so that the surface temperature of the fuse resistor does not rise any more.
As an improvement of the fuse resistance of low surface temperature, further comprising a protective coating, the protective coating will the first conductive cap the temperature melt and the second conductive cap are all wrapped in it.
As an improvement of the low surface temperature fuse resistor of the present invention, the protective coating is an epoxy coating, a silicone rubber coating, a silicone resin coating, or a silicone resin coating.
As an improvement to the low surface temperature fuse resistor of the present invention, the second conductive cap is provided with a lead extending from an end thereof to an outside of the protective coating.
As an improvement of low surface temperature's fuse resistance, the temperature fuse-element is filiform, the temperature fuse-element with the heliciform coiling with the surface in insulating tube middle section.
As an improvement of the fuse resistor with low surface temperature, the temperature melt is in a plating layer shape, and the temperature melt is plated on the surface of the middle section of the insulating tube. The temperature melt is arranged on the surface of the middle section of the insulating tube in a plating mode, and the effect is better than that of linear winding, because the temperature melt can more quickly and comprehensively receive heat emitted by the resistor.
As an improvement of the fuse resistance of the low surface temperature, the melting temperature of the temperature melt is 80-500 ℃. The melting temperature of the melt may be appropriately selected depending on the actual application.
As an improvement of the fuse resistor with low surface temperature, the material of the temperature melt is tin-copper alloy. By adjusting the proportion of tin and copper, the temperature melt can have different fusing temperatures.
As an improvement of the fuse resistor with low surface temperature, the insulating tube is a ceramic tube or a glass fiber tube. Of course, the insulating tube may be made of other materials as long as the material can support and connect, can resist a certain temperature and has a certain hardness.
As an improvement of the low surface temperature fuse resistor of the present invention, the first conductive cap and the second conductive cap are tin-plated iron caps.
The beneficial effects of the utility model reside in that: the utility model provides a fuse resistance of low surface temperature, including insulating tube, first electrically conductive cap, the electrically conductive cap of second, resistance and temperature fuse-element, first electrically conductive cap cup joint in the one end of insulating tube, the electrically conductive cap cup joint of second in the other end of insulating tube, resistance set up in the insulating tube, a lead wire of resistance is followed first electrically conductive cap stretches out, another lead wire of resistance with first electrically conductive cap electric connection, the temperature fuse-element set up in the surface in insulating tube middle section, the temperature fuse-element with first electrically conductive cap with the electrically conductive cap electric connection of second. Compared with the prior art, the utility model discloses surface temperature when can effectively reduce the disconnection of fuse resistance.
Drawings
Fig. 1 is one of the schematic structural diagrams of the present invention.
Fig. 2 is a second schematic structural diagram of the present invention.
Wherein: 1-insulating tube, 2-first conductive cap, 3-second conductive cap, 4-resistance, 5-temperature melt, 6-protective coating, 7-lead.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", horizontal "and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The present invention will be described in further detail with reference to the accompanying drawings, which are not intended to limit the present invention.
Example 1
As shown in fig. 1, a fuse resistor with low surface temperature, includes an insulating tube 1, a first conductive cap 2, a second conductive cap 3, a resistor 4 and a temperature melt 5, the first conductive cap 2 is sleeved on one end of the insulating tube 1, the second conductive cap 3 is sleeved on the other end of the insulating tube 1, the resistor 4 is disposed in the insulating tube 1, a lead of the resistor 4 extends out from the first conductive cap 2, another lead of the resistor 4 is electrically connected with the first conductive cap 2, the temperature melt 5 is disposed on the surface of the middle section of the insulating tube 1, and the temperature melt 5 is electrically connected with the first conductive cap 2 and the second conductive cap 3.
When the fuse is used, the resistor 4 arranged in the insulating tube 1 can generate heat when passing through current, the heat is conducted to the temperature melt 5 from inside to outside through a lead wire or air at the end part of the resistor 4, and when the temperature reaches the action temperature of the temperature melt 5, the temperature melt 5 breaks a circuit, so that the surface temperature of the fuse resistor does not rise any more.
Further, the fuse resistor with low surface temperature of the embodiment further comprises a protective coating 6, and the protective coating 6 covers the first conductive cap 2, the temperature melt 5 and the second conductive cap 3.
Further, the protective coating 6 is an epoxy resin coating, a silicone rubber coating, a silicone resin coating, or a silicone resin coating.
Further, the second conductive cap 3 is provided with a lead 7 extending from an end thereof to the outside of the protective coating 6.
Further, the temperature melt 5 is filament-shaped, and the temperature melt 5 is spirally wound on the surface of the middle section of the insulating tube 1.
Further, the melting temperature of the temperature melt 5 is 80-500 ℃. The melting temperature of the temperature melt 5 may be appropriately selected according to the actual application.
Further, the material of the temperature melt 5 is tin-copper alloy.
Further, the insulating tube 1 is a ceramic tube or a glass fiber tube.
Further, the first conductive cap 2 and the second conductive cap 3 are tin-plated iron caps.
Example 2
As shown in fig. 2, the present embodiment is different from embodiment 1 in that: the temperature melt 5 is in a plating state, and the temperature melt 5 is plated on the surface of the middle section of the insulating tube 1. The temperature melt 5 is deposited on the surface of the middle section of the insulating tube 1 in the form of a coating, which is more effective than a wire winding because it can more rapidly and completely receive the heat emitted by the resistor 4.
The rest is the same as embodiment 1, and the description is omitted here.
While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed above, or as otherwise known in the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (10)
1. A low surface temperature fuse resistor, comprising: including insulating tube, first electrically conductive cap, the electrically conductive cap of second, resistance and temperature fuse-element, first electrically conductive cap cup joint in the one end of insulating tube, the electrically conductive cap cup joint in the other end of insulating tube, resistance set up in the insulating tube, a lead wire of resistance is followed first electrically conductive cap stretches out, another lead wire of resistance with first electrically conductive cap electric connection, the temperature fuse-element set up in the surface in insulating tube middle section, the temperature fuse-element with first electrically conductive cap with the electrically conductive cap electric connection of second.
2. The low surface temperature fuse resistor of claim 1, wherein: the first conductive cap, the temperature melt and the second conductive cap are all covered by the protective coating.
3. The low surface temperature fuse resistor of claim 2, wherein: the protective coating is an epoxy resin coating, an organic silicon rubber coating, an organic silicon resin coating or a silicon resin coating.
4. The low surface temperature fuse resistor of claim 2, wherein: the second conductive cap is provided with a lead extending from an end thereof to the outside of the protective coating.
5. The low surface temperature fuse resistor of claim 1, wherein: the temperature melt is in a filament shape and is spirally wound on the surface of the middle section of the insulating pipe.
6. The low surface temperature fuse resistor of claim 1, wherein: the temperature melt is in a plating layer shape, and the temperature melt is plated on the surface of the middle section of the insulating tube.
7. The low surface temperature fuse resistor of claim 1, wherein: the melting temperature of the temperature melt is 80-500 ℃.
8. The low surface temperature fuse resistor of claim 1, wherein: the material of the temperature melt is tin-copper alloy.
9. The low surface temperature fuse resistor of claim 1, wherein: the insulating tube is a ceramic tube or a glass fiber tube.
10. The low surface temperature fuse resistor of claim 1, wherein: the first conductive cap and the second conductive cap are tin-plated iron caps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023112827.1U CN213752170U (en) | 2020-12-22 | 2020-12-22 | Fuse resistor with low surface temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023112827.1U CN213752170U (en) | 2020-12-22 | 2020-12-22 | Fuse resistor with low surface temperature |
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| Publication Number | Publication Date |
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| CN213752170U true CN213752170U (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023112827.1U Active CN213752170U (en) | 2020-12-22 | 2020-12-22 | Fuse resistor with low surface temperature |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112562945A (en) * | 2020-12-22 | 2021-03-26 | 东莞市贝特电子科技股份有限公司 | Fuse resistor with low surface temperature and preparation method thereof |
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2020
- 2020-12-22 CN CN202023112827.1U patent/CN213752170U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112562945A (en) * | 2020-12-22 | 2021-03-26 | 东莞市贝特电子科技股份有限公司 | Fuse resistor with low surface temperature and preparation method thereof |
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