CN210837636U - Pressure-resistant explosion-proof over-temperature protection type composite fuse - Google Patents
Pressure-resistant explosion-proof over-temperature protection type composite fuse Download PDFInfo
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- CN210837636U CN210837636U CN201922229689.6U CN201922229689U CN210837636U CN 210837636 U CN210837636 U CN 210837636U CN 201922229689 U CN201922229689 U CN 201922229689U CN 210837636 U CN210837636 U CN 210837636U
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- end cap
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Abstract
The utility model provides a withstand voltage explosion-proof excess temperature protection type composite fuse, including the ceramic tube, the temperature sensing body, left end cap and right end cap, the open tubular structure of right-hand member is sealed for the left end to the ceramic tube, the standing groove has been seted up along left right direction on the inside wall of ceramic tube, left end cap and right end cap overlap respectively on the left end portion and the right-hand member portion of ceramic tube, the winding has the resistance wire in the middle part of the lateral wall of ceramic tube, the left end and the left end cap of resistance wire are connected, the right-hand member and the right-hand member cap of resistance wire connect, the temperature sensing body sets up in the ceramic tube and the external diameter of temperature sensing body and the internal diameter looks adaptation of standing groove, the temperature sensing body is located the top of standing groove in the ceramic tube, the left end of temperature. The utility model has the advantages of reasonable in design practices thrift man-hour in the production process, and withstand voltage explosion-proof ability is good, has excess temperature overcurrent protect function etc.
Description
Technical Field
The utility model belongs to the technical field of the fuse, concretely relates to withstand voltage explosion-proof excess temperature protection type composite fuse.
Background
The traditional fuse is mostly applied to small-power electronic products such as mobile phone chargers, power adapters, small household appliances, electronic toys and the like, and can provide overvoltage and overcurrent protection for the products. In the using process of a user, the product is prevented from being over-pressurized, overheated, deformed by the shell, on fire and the like due to abnormal work, thunderstorm weather or environmental temperature. However, the following disadvantages exist in the products: firstly, when the product is sealed in production and coated, the sealing glue filled and the coating coated waste working hours, the reject ratio of production is high, and the production efficiency is low; secondly, the traditional fuse has the advantages of general pressure resistance and explosion resistance and no over-temperature protection function.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the weak point among the prior art, provide a reasonable in design, practice thrift man-hour in the production process, withstand voltage explosion-proof ability is good, has an explosion-proof excess temperature protection type composite fuse of excess temperature overcurrent protect function.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a pressure-resistant explosion-proof over-temperature protection type composite fuse comprises a ceramic tube, a temperature sensing body, a left end cap and a right end cap, wherein the ceramic tube is of a cylindrical structure with a left end closed and a right end open, a placing groove is formed in the left and right directions at the upper bottom of the inner side wall of the ceramic tube, the left end cap is of a structure with a left end closed and a right end open, the right end cap is of a structure with a left end open and a right end open, the left end cap and the right end cap are respectively sleeved on the left end portion and the right end portion of the ceramic tube, a resistance wire is wound in the middle of the outer side wall of the ceramic tube, the left end of the resistance wire is connected with the left end cap, the right end of the resistance wire is connected with the right end cap, the temperature sensing body is arranged in the ceramic tube, the outer diameter of the temperature sensing body is matched with the inner diameter of the placing groove, the temperature sensing body is positioned above the placing groove in the, the lead wire that bends sets up in the standing groove, has painted epoxy coating or silica gel polymer coating or UV glue coating on the lateral wall of left end cap, ceramic pipe, and right-hand member cap, the outside cover that paints epoxy coating or silica gel polymer coating or UV glue coating on left end cap, ceramic pipe and the right-hand member cap lateral wall is equipped with insulating cover, be connected with first lead wire on the left side wall of left end cap, the one end of first lead wire is fixed on left end cap, the other end of first lead wire is worn out insulating cover and extends the left side of insulating cover for free end and this end left, the right-hand member of the temperature sensing body is connected with the second lead wire, second lead wire one end is fixed on the temperature sensing body, the other end of second lead wire is worn out insulating cover and extends the right side of insulating cover for free end and this end right side, it has the sealing glue to fill between the junction of right-hand member and second lead wire.
Preferably, the sealing glue is UV glue or epoxy resin.
Preferably, the insulating sleeve is a fiber sleeve or a heat shrinkable tube.
Preferably, the left end cap and the right end cap are made of metal materials.
Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:
(1) the utility model discloses a ceramic tube has the standing groove along left and right direction on the inside wall, the temperature sensing body sets up in the ceramic tube and the external diameter of temperature sensing body and the internal diameter looks adaptation of standing groove, the temperature sensing body is located the top of the standing groove in the ceramic tube, the lead wire that bends sets up in the standing groove, when carrying out production, can be used for fixing the installation direction of temperature sensing body and the position of the weld part of the lead wire of bending and right-hand member cap according to the standing groove, prevent that the temperature sensing body from rotating wantonly in the ceramic tube after packing into the ceramic tube, compared with the prior art, need not artifically or rely on artifical tool to fix it, the uniformity of product when producing is ensured, improve the production efficiency of product, after the lead wire that bends sets up in the standing groove, cancelled the prior art through tool and the method of artifical calibration weld part position, reasonable in design, save man-hour in the, the production efficiency is high, and the cost is saved;
(2) the utility model is provided with the temperature sensing body, the left end cap, the right end cap, the resistance wire and other parts to provide overvoltage and overcurrent protection for small power electronic products such as mobile phone chargers, power adapters, small household appliances, electronic toys and the like, the temperature sensing body also provides overtemperature protection for the products, and epoxy resin coatings or silica gel polymer coatings or UV glue coatings are smeared on the outer side walls of the left end cap, the ceramic tube and the right end cap, compared with the prior art, the utility model has better pressure resistance and explosion-proof capability;
(3) the sealing glue is filled between the right end part in the ceramic tube and the joint of the second lead and the right end cap, so that the utility model has better pressure resistance and explosion-proof capability when in use;
(4) the utility model discloses the outside cover of the epoxy coating or silica gel polymer coating or UV glue coating that scribble on left end cap, ceramic tube and right-hand member cap lateral wall is equipped with insulating cover, and insulating cover's setting guarantees the utility model discloses prevent the electric shock when using;
(5) the left end cap, the resistance wire and the right end cap of the utility model are made of metal materials, thereby ensuring the normal use of the utility model and providing overvoltage and overcurrent protection for small-power electronic products such as mobile phone chargers, power adapters, small household appliances, electronic toys and the like when in use;
to sum up, the utility model has the advantages of reasonable in design practices thrift man-hour in the production process, and withstand voltage explosion-proof ability is good, has excess temperature overcurrent protect function etc.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the ceramic tube and the left end cap and the right end cap sleeved on the ceramic tube of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.
The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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, but 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 in specific cases to those skilled in the art.
As shown in figures 1 and 2, the utility model relates to a pressure-resistant explosion-proof over-temperature protection type composite fuse, which comprises a ceramic tube 1, a temperature-sensing body 2, a left end cap 3 and a right end cap 4, wherein the ceramic tube 1 is a cylindrical structure with a left end closed and a right end opened, a placing groove 5 is arranged on the upper bottom of the inner side wall of the ceramic tube 1 along the left and right directions, the left end cap 3 is a structure with a left end closed and a right end opened, the right end cap 4 is a structure with both left and right ends opened, the left end cap 3 and the right end cap 4 are respectively sleeved on the left end part and the right end part of the ceramic tube 1, a resistance wire 6 is wound in the middle of the outer side wall of the ceramic tube 1, the left end of the resistance wire 6 is connected with the left end cap 3, the right end of the resistance wire 6 is connected with the right end cap 4, the temperature-sensing body 2 is arranged in the ceramic tube 1, the outer diameter of, the left end of the temperature sensing body 2 is connected with a bending lead 7, one end of the bending lead 7 is connected with the left end of the temperature sensing body 2, the other end of the bending lead 7 is welded with the right end cap 4, the bending lead 7 is arranged in the placing groove 5, the outer side walls of the left end cap 3, the ceramic tube 1 and the right end cap 4 are coated with epoxy resin coating or silica gel polymer coating or UV glue coating or oxide film coating, the coating can also be made of plastic rubber which is integrally formed, the outer side walls of the epoxy resin coating or silica gel polymer coating or UV glue coating coated on the outer side walls of the left end cap 3, the ceramic tube 1 and the right end cap 4 are sleeved with an insulating sleeve 8, the left side wall of the left end cap 3 is connected with a first lead 9, one end of the first lead 9 is fixed on the left end cap 3, the other end of the first lead 9 is a free end, and the free end penetrates out of the insulating sleeve 8 to, the right-hand member of temperature sensing body 2 is connected with second lead wire 10, and second lead wire 10 one end is fixed on temperature sensing body 2, and the other end of second lead wire 10 is the free end and this end wears out insulating cover 8 and extends the right side of insulating cover 8 to the right side, and it has sealing glue 11 to fill between the junction of right-hand member portion and second lead wire 10 and right-hand member cap 4 in the ceramic tube 1.
The sealing glue 11 is UV glue or epoxy resin.
The insulating sleeve 8 is a fiber sleeve or a heat shrinkable tube.
The left end cap 3 and the right end cap 4 are both made of metal materials.
The utility model discloses a concrete use as follows:
the utility model discloses when production, first left end cap 3 and right end cap 4 overlap respectively on the left end portion and the right end portion of ceramic pipe 1, then twine resistance wire 6 in the middle part of the lateral wall of ceramic pipe 1 and connect the left end of resistance wire 6 with left end cap 3, the right-hand member of resistance wire 6 is connected with right end cap 4, then send temperature sensing body 2 and bending lead 7 connected at the left end of temperature sensing body 2 into ceramic pipe 1 from the right-hand member of ceramic pipe 1, fix the installation direction of temperature sensing body 2 through standing groove 5, the setting of standing groove 5 can prevent temperature sensing body 2 from rotating at will in ceramic pipe 1 after packing into ceramic pipe 1, reduced the production step of artificially or artificially fixing temperature sensing body 2 through the tool, ensured the utility model discloses uniformity during production, production efficiency is improved, after bending lead 7 sets up in standing groove 5, cancelled the method through tool and artifical calibration weld part among the prior art, the design is reasonable, the working hours are saved in the production process, the production efficiency is high, and the cost is saved;
one end of the bending lead 7 is fixed at the left end of the temperature sensing body 2, the bending lead 7 is arranged in the placing groove 5, the other end of the bending lead 7 is welded with the right end cap 4, after the temperature sensing body 2 is installed, the outer side of the epoxy resin coating or the silica gel polymer coating or the UV glue coating coated on the outer side wall of the left end cap 3, the ceramic tube 1 and the right end cap 4 is sleeved with the insulating sleeve 8, the UV glue or the epoxy resin is filled between the right end part of the ceramic tube 1 and the joint of the second lead 10 and the right end cap 4, the first lead 9 connected with the left end cap 3 penetrates out of the insulating sleeve 8 to the left and extends to the left side of the insulating sleeve 8, the second lead 10 connected with the right end of the temperature sensing body 2 penetrates out of the insulating sleeve 8 to the right and extends to the right side of the insulating sleeve 8, so far, the production of the utility model is finished, and the inner diameter and the length of the, thereby facilitating the installation of the temperature-sensing body 2 (such as a miniature temperature-sensing body 2 with the thickness of 1.5 mm-1.7 mm), facilitating the automatic production of a machine and further improving the production efficiency;
the utility model discloses after finishing production, will through first lead wire 9 and second lead wire 10 the utility model discloses connect the setting in miniwatt electronic products such as cell-phone charger, power adapter, small household electrical appliances, electronic toy, provide overflow, excessive pressure and excess temperature protection for these miniwatt electronic products, it has sealing compound 11 and the setting of spare parts such as temperature sensing body 2 to fill between the junction of right-hand member portion and second lead wire 10 and right-hand member cap 4 in ceramic pipe 1 to have the setting up of sealing compound 11 the utility model provides a good withstand voltage, explosion-proof and excess temperature protective capability.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.
Claims (4)
1. The utility model provides a withstand voltage explosion-proof excess temperature protection type composite fuse, includes ceramic tube, temperature sensing body, left end cap and right end cap, its characterized in that: the ceramic tube is a cylindrical structure with a left end closed and a right end opened, a placing groove is arranged at the upper bottom of the inner side wall of the ceramic tube along the left-right direction, the left end cap is a structure with a left end closed and a right end opened, the right end cap is a structure with a left end opened and a right end opened, the left end cap and the right end cap are respectively sleeved on the left end part and the right end part of the ceramic tube, a resistance wire is wound in the middle of the outer side wall of the ceramic tube, the left end of the resistance wire is connected with the left end cap, the right end of the resistance wire is connected with the right end cap, a temperature sensing body is arranged in the ceramic tube, the outer diameter of the temperature sensing body is matched with the inner diameter of the placing groove, the temperature sensing body is positioned above the placing groove in the ceramic tube, the left end of the temperature sensing body is connected with a bending lead, one end of the bending lead is connected with the left end of the temperature sensing body, the other end of the bending lead is welded, the utility model discloses a ceramic tube, including left end cap, ceramic tube and right-hand member cap, the outside cover of epoxy coating or silica gel polymer coating or the UV glue coating of scribbling is equipped with insulating cover on left end cap, be connected with first lead wire on the left side wall of left end cap, the one end of first lead wire is fixed on left end cap, the other end of first lead wire is worn out insulating cover and extends insulating cover's left side for free end and this end left, the right-hand member of temperature sensing body is connected with the second lead wire, second lead wire one end is fixed on the temperature sensing body, the other end of second lead wire is worn out insulating cover and extends insulating cover's right side for free end and this end right side, it has the sealing glue to fill between the junction of right-hand member in the.
2. A pressure-resistant explosion-proof over-temperature protection type composite fuse according to claim 1, characterized in that: the sealing glue is UV glue or epoxy resin.
3. A pressure-resistant explosion-proof over-temperature protection type composite fuse according to claim 1, characterized in that: the insulating sleeve is a fiber sleeve or a heat shrinkable tube.
4. A pressure-resistant explosion-proof over-temperature protection type composite fuse according to claim 1, characterized in that: the left end cap and the right end cap are both made of metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922229689.6U CN210837636U (en) | 2019-12-12 | 2019-12-12 | Pressure-resistant explosion-proof over-temperature protection type composite fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922229689.6U CN210837636U (en) | 2019-12-12 | 2019-12-12 | Pressure-resistant explosion-proof over-temperature protection type composite fuse |
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| Publication Number | Publication Date |
|---|---|
| CN210837636U true CN210837636U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922229689.6U Active CN210837636U (en) | 2019-12-12 | 2019-12-12 | Pressure-resistant explosion-proof over-temperature protection type composite fuse |
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| CN (1) | CN210837636U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113363123A (en) * | 2021-07-20 | 2021-09-07 | 东莞市贝特电子科技股份有限公司 | Composite protector and manufacturing method thereof |
| CN113471033A (en) * | 2021-07-20 | 2021-10-01 | 东莞市贝特电子科技股份有限公司 | Composite protector and manufacturing method thereof |
-
2019
- 2019-12-12 CN CN201922229689.6U patent/CN210837636U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113363123A (en) * | 2021-07-20 | 2021-09-07 | 东莞市贝特电子科技股份有限公司 | Composite protector and manufacturing method thereof |
| CN113471033A (en) * | 2021-07-20 | 2021-10-01 | 东莞市贝特电子科技股份有限公司 | Composite protector and manufacturing method thereof |
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