CN211088195U - Current fuse with temperature protection function - Google Patents
Current fuse with temperature protection function Download PDFInfo
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- CN211088195U CN211088195U CN201922290964.5U CN201922290964U CN211088195U CN 211088195 U CN211088195 U CN 211088195U CN 201922290964 U CN201922290964 U CN 201922290964U CN 211088195 U CN211088195 U CN 211088195U
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- conductive cap
- current fuse
- electrically conductive
- temperature
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Abstract
The utility model belongs to the technical field of the fuse, especially, relate to a current fuse with temperature protect function, including insulating tube, first electrically conductive cap, the electrically conductive cap of second, temperature fuse and current fuse, 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, temperature fuse set up in the insulating tube, the one end of temperature fuse is followed first electrically conductive cap stretches out, the other end of temperature fuse with first electrically conductive cap electric connection, current fuse set up in the surface in insulating tube middle section, the current fuse with first electrically conductive cap with second electrically conductive cap electric connection. Compared with the prior art, the utility model provides high rated current, the resistance value is low and stable, and the consumption is few, does not influence the customer end lectotype and uses.
Description
Technical Field
The utility model belongs to the technical field of the fuse, especially, relate to a current fuse with temperature protect function.
Background
The current fuse mainly plays a role in overload protection. The fuse is correctly arranged in the circuit, and the fuse can be fused to cut off the current when the current is abnormally increased to a certain height and heat, so that the safe operation of the circuit is protected.
As the charging power of the charger increases, the current passing through the fuse of the charger increases, and therefore, the rated current of the fuse for the charger is required to be increased and the power consumption is required to be reduced. The current fuses on the market at present have the following defects: 1) the resistance wire is used, the heating value of the resistance wire is large, only the rated current is low, and only 1A can be achieved at most at present; 2) the resistance wire is used, the resistance value of the finished product is larger, and the consumed power is higher; 3) the resistance wire used has higher temperature resistance coefficient and different resistance values at different temperatures, which can influence the type selection of customers.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: aiming at the defects of the prior art, the current fuse with the temperature protection function is provided, the rated current is improved, the resistance value is low and stable, the power consumption is low, and the type selection use of a client is not influenced.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a current fuse with temperature protect function, includes insulating tube, first electrically conductive cap, the electrically conductive cap of second, temperature fuse and current fuse, 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, the temperature fuse set up in the insulating tube, the one end of temperature fuse is followed first electrically conductive cap stretches out, the other end of temperature fuse with first electrically conductive cap electric connection, the current fuse set up in the surface in insulating tube middle section, the current fuse with first electrically conductive cap with second electrically conductive cap electric connection.
It should be noted that, because the present invention uses the current fuse, the heat generation amount is low, and when the current fuse operates according to the rated current, the heat generation of the current fuse does not affect the temperature fuse inside the insulating tube, so that the rated current of the current fuse can be determined according to the rated current of the current fuse. And the rated current of the current fuse can be larger than that of the conventional resistance wire, therefore, the utility model discloses can improve the rated current of current fuse. Additionally, the utility model discloses a current fuse its meter resistance is very little, compares with the resistance wire of the same line footpath and same length, and its resistance is obviously low a lot, consequently, the utility model discloses a current fuse resistance value is low. To sum up, the utility model discloses when using, when reaching 2 times of the rated current of conventional resistance wire even when bigger, the current fuse just breaks off, and the temperature fuse that is located the insulating tube inside moreover also can automatic disconnection when reaching its action temperature. That is to say, the utility model discloses a current fuse not only has the protect function of open circuit when the electric current is too big, and it also can open circuit and play corresponding protect function when the temperature is too high.
As an improvement of the current fuse with temperature protection function, the current fuse further comprises a protective coating, wherein the protective coating is used for coating the first conductive cap, the current fuse and the second conductive cap inside. The protective coating plays a role in extinguishing an arc generated when the current fuse is broken or short-circuited.
As an improvement of the current fuse with temperature protection function of the present invention, the protection coating is an epoxy coating, an organic silicon rubber coating, an organic silicon resin coating or a silicone resin coating.
As an improvement of the current fuse with temperature protection function of the present invention, the second conductive cap is provided with a lead wire extending from an end thereof to the outside of the protective coating layer.
As an improvement of the current fuse having a temperature protection function of the present invention, the current fuse is wound in a spiral shape and is attached to the surface of the middle section of the insulating tube.
As an improvement of current fuse with temperature protection function, the melting temperature of temperature fuse is 80 ~ 500 ℃. The melting temperature of the temperature fuse may be appropriately selected according to the actual application object.
As an improvement of the current fuse with the temperature protection function of the present invention, the current fuse is a tin-plated silver-copper alloy wire.
As an improvement of the current fuse with the temperature protection function, the diameter of the current fuse is 0.01-1 mm.
As an improvement of the current fuse with the temperature protection function of the present invention, the insulating tube is a ceramic tube or a glass fiber tube.
As an improvement of the current fuse with the temperature protection function 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 current fuse with temperature protect function, including insulating tube, first electrically conductive cap, the electrically conductive cap of second, temperature fuse and current fuse, 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, temperature fuse set up in the insulating tube, the one end of temperature fuse is followed first electrically conductive cap stretches out, the other end of temperature fuse with first electrically conductive cap electric connection, the current fuse set up in the surface in insulating tube middle section, the current fuse with first electrically conductive cap with the electrically conductive cap electric connection of second. Compared with the prior art, the utility model provides high rated current, the resistance value is low and stable, and the consumption is few, does not influence the customer end lectotype and uses.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein: 1-insulating tube, 2-first conductive cap, 3-second conductive cap, 4-temperature fuse, 5-current fuse, 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.
As shown in fig. 1, a current fuse with temperature protection function, includes an insulating tube 1, a first conductive cap 2, a second conductive cap 3, a temperature fuse 4 and a current fuse 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 temperature fuse 4 is disposed in the insulating tube 1, one end of the temperature fuse 4 extends out of the first conductive cap 2, the other end of the temperature fuse 4 is electrically connected with the first conductive cap 2, the current fuse 5 is disposed on the surface of the middle section of the insulating tube 1, and the current fuse 5 is electrically connected with the first conductive cap 2 and the second conductive cap 3.
The utility model discloses a current fuse with temperature protect function still includes protective coating 6, and protective coating 6 all wraps first electrically conductive cap 2, current fuse 5 and the electrically conductive cap 3 of second in it.
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.
Further, the current fuse 5 is spirally wound around the surface of the middle section of the insulating tube.
Further, the melting temperature of the thermal fuse 4 is 80 to 500 ℃. The melting temperature of the thermal fuse 4 may be appropriately selected according to the actual application object.
Further, the current fuse 5 is a tin-plated silver-copper alloy wire.
Further, the diameter of the current fuse 5 is 0.01 to 1 mm.
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 1
The structure is used for connection, wherein the insulating tube 1 is a ceramic tube, the first conductive cap 2 and the second conductive cap are tin-plated iron caps, the current fuse 5 is a tin-plated silver-copper alloy wire, the wire diameter of the current fuse 5 is 0.125mm, and the operating temperature specification of the temperature fuse 4 is 222 ℃. The rated current of a product made of the traditional resistance wire is 1.5A, when the current fuse of the embodiment reaches 2 times and 3 times of the conventional rated current, the current fuse 5 is disconnected, and the temperature fuse 4 is not disconnected.
The specific test data are as follows:
can find out by last table, the utility model discloses a current fuse with temperature protect function, its resistance is low and stable, just can break off when reaching 2 times rated current or even 3 times rated current moreover, has improved the rated current of current fuse.
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 current fuse with temperature protection function is characterized in that: including insulating tube, first electrically conductive cap, the electrically conductive cap of second, temperature fuse and electric current fuse, 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, the temperature fuse set up in the insulating tube, the one end of temperature fuse is followed first electrically conductive cap stretches out, the other end of temperature fuse with first electrically conductive cap electric connection, the electric current fuse set up in the surface in insulating tube middle section, the electric current fuse with first electrically conductive cap with the electrically conductive cap electric connection of second.
2. The current fuse with temperature protection function according to claim 1, wherein: the fuse structure further comprises a protective coating, and the first conductive cap, the current fuse and the second conductive cap are all wrapped in the protective coating.
3. The current fuse with temperature protection function according to 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 current fuse with temperature protection function according to 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 current fuse with temperature protection function according to claim 1, wherein: the current fuse wire is spirally wound on the surface of the middle section of the insulating tube.
6. The current fuse with temperature protection function according to claim 1, wherein: the melting temperature of the temperature fuse is 80-500 ℃.
7. The current fuse with temperature protection function according to claim 1, wherein: the current fuse is a tinned silver-copper alloy wire.
8. The current fuse with temperature protection function according to claim 1, wherein: the diameter of the current fuse is 0.01-1 mm.
9. The current fuse with temperature protection function according to claim 1, wherein: the insulating tube is a ceramic tube or a glass fiber tube.
10. The current fuse with temperature protection function according to 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 |
|---|---|---|---|
| CN201922290964.5U CN211088195U (en) | 2019-12-19 | 2019-12-19 | Current fuse with temperature protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922290964.5U CN211088195U (en) | 2019-12-19 | 2019-12-19 | Current fuse with temperature protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211088195U true CN211088195U (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922290964.5U Active CN211088195U (en) | 2019-12-19 | 2019-12-19 | Current fuse with temperature protection function |
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| CN (1) | CN211088195U (en) |
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 |
-
2019
- 2019-12-19 CN CN201922290964.5U patent/CN211088195U/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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