CN202549763U - Temperature fuse - Google Patents
Temperature fuse Download PDFInfo
- Publication number
- CN202549763U CN202549763U CN2012201383337U CN201220138333U CN202549763U CN 202549763 U CN202549763 U CN 202549763U CN 2012201383337 U CN2012201383337 U CN 2012201383337U CN 201220138333 U CN201220138333 U CN 201220138333U CN 202549763 U CN202549763 U CN 202549763U
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- China
- Prior art keywords
- conductor
- leading
- housing
- lid
- fusible
- Prior art date
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- 239000004020 conductor Substances 0.000 claims abstract description 161
- 239000000565 sealant Substances 0.000 claims description 26
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 abstract description 17
- 229910000679 solder Inorganic materials 0.000 description 16
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 12
- 230000004907 flux Effects 0.000 description 12
- 229910001092 metal group alloy Inorganic materials 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 239000003822 epoxy resin Substances 0.000 description 8
- 229920000647 polyepoxide Polymers 0.000 description 8
- 238000010891 electric arc Methods 0.000 description 7
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 4
- 230000004927 fusion Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
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Abstract
The utility model provides a temperature fuse. In the temperature fuse, the surface of a fuse element is not in contact with the inner peripheral surface of a shell. The temperature fuse comprises a fusible part, a first lead conductor and a second lead conductor, a first step part and a second step part, a cylindrical shell, a convex part and a cover body, wherein the first lead conductor and the second lead conductor respectively extend from two ends of the fusible part, the first step part is formed on the first lead conductor, the second step part is formed on the second lead conductor, the fusible part, the first lead conductor and the second lead conductor are inserted inside the shell from an opening in one end to ensure that end parts of the first lead conductor and the second lead conductor are led out to the outer part of the shell and the fusible part can be accommodated inside the shell, the convex part is formed on the inner surface near the other end of the shell and is used for clamping the first lead conductor side; and the cover body is sleeved on the second lead conductor and is clamped by the second step part.
Description
Technical field
The utility model relates to a kind of temperature fuse.For example, relate to a kind of surface and discontiguous each other temperature fuse of inner peripheral surface of housing that comprises fusible fuse element.
Background technology
In the past, temperature fuse has been used as the hot guard block to electric equipment, electronic equipment etc.For example, in following patent documentation 1 and following patent documentation 2, record the temperature inside fuse that the fusible metal alloy that is extended with leading-in conductor from two ends is contained in housing.
Patent documentation 1: japanese kokai publication hei 05-151873 communique
Patent documentation 2: japanese kokai publication hei 05-174680 communique
For the anti-overcurrent property that improves temperature fuse and improve rated voltage, rated current, the inner surface of preferred housing is surperficial separated from one another with the fuse element that comprises fusible metal alloy.Since the arc discharge that when the fusible metal alloy fusing of temperature fuse, takes place, the solder flux generation charing that applies on the fusible metal alloy.Inner surface through housing and fuse element surperficial separated from one another can prevent that electric current from flowing via the solder flux of charing, thereby can prevent the reduction of insulation resistance.
And, the arc discharge that takes place during owing to temperature fuse work, the fusible metal alloy of fusing is dispersed.Inner surface through housing and fuse element surperficial separated from one another can make the fusible metal alloy of dispersing dispersedly attached to the inner surface of housing.Therefore, the conducting again that causes of fusible metal alloy can be prevented, thereby the reduction of insulation resistance can be prevented by fusing.And, the situation that the arc discharge that takes place when having temperature fuse work destroys housing.Inner surface through housing and fuse element surperficial separated from one another, housing can directly not receive the influence of arc discharge, and the destruction that can prevent housing.
But, as patent documentation 1 record, in the temperature fuse that only two ends is sealed, can't locate fuse element exactly with resin.Therefore, with resin-sealed temperature fuse the time, the problem that exists the surface of inner surface and the fuse element of housing to contact with each other.
Equally, as patent documentation 2 record, the lead-in wire that only is set as recess through the top bears the top of fusible metal alloy, is difficult to locate exactly fuse element.Particularly exist and to use the such problem of tool (jig) the location of the vertical direction of the temperature-sensing element in the cylindrical shell.
The utility model content
Therefore, the utility model purpose is to provide a kind of and can be exactly fusible of fusible metal alloy etc. be positioned and comprise surface and the discontiguous each other temperature fuse of inner surface of housing of fusible fuse element.
In order to address the above problem, the utility model for example is the temperature fuse that comprises with lower member: fusible portion; First leading-in conductor and second leading-in conductor, it extends from fusible two ends respectively; First step portion and second step portion, said first step portion is formed on first leading-in conductor, and said second step portion is formed on second leading-in conductor; The housing of tubular inserts fusible portion, first leading-in conductor and second leading-in conductor from the opening of one of which end, and exports to outside state with the end with first leading-in conductor and second leading-in conductor and hold fusible portion; Protuberance, it is formed near the inner surface the other end of housing, is used for the fastening first leading-in conductor side; And lid, it is enclosed within on second leading-in conductor and by the fastening of second step portion.
In the temperature fuse of the utility model, said first step portion is by said protuberance fastening.
In the temperature fuse of the utility model, on said first leading-in conductor, be with another lid, said another lid is by said first step portion and said protuberance clamping.
In the temperature fuse of the utility model, between the other end of said housing and said protuberance, be formed for the recess of filling sealing agent.
In the temperature fuse of the utility model, between end of said housing and said lid, be filled with sealant.
Adopt the utility model, the surface of fuse element does not contact with the inner surface of housing each other.Therefore, in temperature fuse work and fusible fusing the time can not cause insulation resistance to reduce, can cut off the circuit of application of temperature fuse reliably.
Description of drawings
Fig. 1 is the skeleton diagram of structure example of the temperature fuse in first execution mode of expression the utility model.
Fig. 2 is the skeleton diagram of an example that is used for explaining fuse element and the leading-in conductor of the utility model.
Fig. 3 is the skeleton diagram of an example that is used for explaining the housing of the utility model.
Fig. 4 is the skeleton diagram of an example that is used for explaining the lid of the utility model.
Fig. 5 is the skeleton diagram of work example that is used to explain the temperature fuse of the utility model.
Fig. 6 is the skeleton diagram of structure example of the temperature fuse in second execution mode of expression the utility model.
Embodiment
Below, with reference to the execution mode of description of drawings explanation the utility model.Wherein, explanation is by in sequence following.
First execution mode
Second execution mode
Variation
In addition; Below the execution mode of explanation is the preferred concrete example of the utility model; Though add technical preferred various qualifications are arranged, the short of main contents that limit the utility model of in following explanation, putting down in writing especially, the scope of the utility model just is not limited to these execution modes.
First execution mode
The summary of temperature fuse
First execution mode of the utility model at first, is described.Fig. 1 representes the structure example in the cross section of the temperature fuse 1 in first execution mode.Temperature fuse 1 for example is loaded in the circuit of various electronic equipments.When the abnormal temperature of the equipment of perceiving, the electric current that flows in the circuit is cut off in temperature fuse 1 work, and detailed content will be narrated in the back.Wherein, the working temperature of temperature fuse 1 is fit to be set at 65 ℃, 75 ℃, 100 ℃ etc.
Be formed with recess C1 from the roughly foursquare opening of housing 2 towards the inside of housing 2.Substantial middle in the bottom surface of recess C1 is formed with through hole H1.Its result, near the whole inner peripheral surface the other end of housing 2 is formed with protuberance 3.The diameter of the leading-in conductor 7 that the diameter of through hole H1 is stated after being set as and being slightly larger than.Be formed with space S 1 roughly cylindraceous towards the inside of housing 2 from the opening of the circular of housing 2.Recess C1 is connected via through hole H1 with space S 1.
In space S 1, accommodate fusible 4.Be covered with solder flux 5 fusible 4 surfaces coated.Wherein, for ease, be called fuse element 6 with fusible 4 that is coated with solder flux 5.Be welded with leading-in conductor 7 at an end of fusible 4 as first leading-in conductor.Leading-in conductor 7 extends towards the outside of housing 2 from fusible 4 welding position (weld part) with leading-in conductor 7.The end of leading-in conductor 7 is exported to the outside of housing 2 via the roughly foursquare opening of housing 2.On leading-in conductor 7, be formed with stage portion 8 as an example of first step portion.
The diameter of leading-in conductor 7 is set as the diameter that is slightly less than through hole H1.In addition, the width of stage portion 8 (with the length of the direction of the extending direction quadrature of leading-in conductor 7) is set as the diameter that is slightly larger than through hole H1.Therefore, when leading-in conductor 7 ran through through hole H1, stage portion 8 was by protuberance 3 fastenings.
Be welded with leading-in conductor 9 at fusible 4 the other end as second leading-in conductor.Leading-in conductor 9 extends towards the outside of housing 2 from fusible 4 weld part with leading-in conductor 9.The end of leading-in conductor 9 is exported to the outside of housing 2 via the opening of the circular of housing 2.On leading-in conductor 9, be formed with stage portion 10 as an example of second step portion.
On leading-in conductor 9, be with lid 11.Lid 11 for example is the discoid member with hollow bulb, and detailed content will be narrated in the back.The diameter of lid 11 is slightly less than the diameter of opening of the circular of housing 2.The diameter of the hollow bulb of lid 11 is set as the diameter that is slightly larger than leading-in conductor 9, and is set as the width that is slightly less than stage portion 10 (with the length of the direction of the extending direction quadrature of leading-in conductor 9).The lid 11 that is enclosed within on the leading-in conductor 9 is inserted space S 1 from the opening of circular, and be contained in the space S 1.
Be enclosed within lid 11 on the leading-in conductor 9 in space S 1 by stage portion 10 fastenings.At this moment, between the opening of the circular of housing 2 and lid 11, form space S 2.Respectively to sealants such as recess C1 and space S 2 filling epoxy resins, formation temperature fuse 1.
The assemble method of temperature fuse
One example of the assemble method of temperature fuse 1 is described.Wherein, the assembling of temperature fuse 1 for example be integrally formed leading-in conductor 7 and leading-in conductor 9 being welded on respectively on fusible 4 and apply solder flux 5 to fusible 4 after carry out.At first, the opening from the circular of housing 2 inserts leading-in conductor 7 towards space S 1.When inserting leading-in conductor 7, the part of fuse element 6 and leading-in conductor 9 is contained in the space S 1 successively.Make leading-in conductor 7 run through through hole H1.Then, via the roughly foursquare opening of recess C1 and housing 2 top of leading-in conductor 7 is derived to the outside of housing 2.
When leading-in conductor 7 was inserted the inside of housing 2, stage portion 8 was by protuberance 3 fastenings.Through fastening stage portion 8, become and to insert leading-in conductor 7 again.Suitable setting is carried out in formation position through to the stage portion in the leading-in conductor 78, can the position of fuse element 6 when the fastening stage portion 8 be set as the substantial middle of the inside of housing 2.
Then, the top of lid 11 from leading-in conductor 9 is enclosed within on the leading-in conductor 9.The lid 11 that will be placed in leading-in conductor 9 via the opening of the circular of housing 2 is contained in the space S 1, and by stage portion 10 fastenings.Utilize lid 11, with the state support fuse element 6 that suspends, the surface of fuse element 6 does not contact with the inner peripheral surface of housing 2 each other.
Then, to sealants such as recess C 1 and space S 2 filling epoxy resins.Via the roughly foursquare opening of housing 2 to recess C1 filling sealing agent.Via the opening of the circular of housing 2 to space S 2 filling sealing agents.At this, owing to be penetrated with leading-in conductor 7 among the through hole H1, thereby can be via through hole H1 inflow space S1 from the sealant of roughly foursquare opening filling.The sealant of filling from the opening of circular in addition, can not flow in the space S 1 by lid 11 blocking-up.Through making the sealant cures of filling, accomplish the assembling of temperature fuse 1.Wherein, the assemble method of above-mentioned temperature fuse 1 is an example of its assemble method and can suitably changes.For example, also can at first lid 11 be enclosed within on the leading-in conductor 9, afterwards, leading-in conductor 7 grades be inserted housing 2.
In the temperature fuse 1 that as above-mentioned, forms, the surface of fuse element 6 does not contact with the inner peripheral surface of housing 2 and separated from one another each other.Therefore, anti-insulating properties increases.And, because the inner peripheral surface of the surface of fuse element 6 and housing 2 is separated from one another, thereby can prevent that electric current from flowing via the solder flux that charing has taken place because of arc discharge, thereby can prevent the reduction of insulation resistance.
And,, thereby can make the fusible metal alloy that taken place to disperse because of arc discharge dispersedly attached to the inner peripheral surface of housing because the inner peripheral surface of the surface of fuse element 6 and housing 2 is separated from one another.Therefore, the conducting again that causes of fusible metal alloy can be prevented, thereby the reduction of insulation resistance can be prevented by fusing.And, because the surface of fuse element 6 is separated from one another with the inner peripheral surface of housing 2, thereby the influence of housing 2 arc discharge of generation can directly not receive temperature fuse work the time, thereby the destruction that can prevent housing 2.Wherein, temperature fuse 1 for example can be realized rated voltage: AC (Alternating Current) 250V (volt), rated current: 10A (ampere).
Fuse element and leading-in conductor
Below, the each several part of detailed description temperature fuse 1.Fig. 2 representes an example of the structure of fuse element 6, leading-in conductor 7 and leading-in conductor 9.As stated, fuse element 6 comprises fusible 4 and is coated in the solder flux 5 on fusible 4.
The end of leading-in conductor 7 is welded on fusible 4 end, and leading-in conductor 7 extends from fusible 4 end.The end of leading-in conductor 9 is welded on the other end of fusible 4, and leading-in conductor 9 extends from the other end of fusible 4.Through respectively leading-in conductor 7 and leading-in conductor 9 being welded on fusible 4, produce some spherical convexities as weld part at fusible 4 two ends.
For fusible 4 and leading-in conductor 7, for example utilize electric resistance welding to weld.In electric resistance welding, make current direction leading-in conductor 7, utilize this electric current to make fusible 4 end fusion.Through to fusion fusible 4 end cool off, fusible 4 is welded with leading-in conductor 7.Equally, for fusible 4 and leading-in conductor 9, for example utilize electric resistance welding to weld.
For example use soft solder alloy (solder alloy) for fusible 4.In recent years, from the viewpoint of environmental protection, tin (the Sn)-bismuth (Bi) that will not contain harmful heavy metal such as cadmium (Cd), plumbous (Pb) is to wait the soft solder alloy as fusible 4 use.Wherein, also can the soft solder alloy that contain some indium (In), copper (Cu) be used as fusible 4.For example applying with rosin (rosin (rosin)) on fusible 4 surface is the solder flux 5 of main component.
Leading-in conductor 7 for example uses tin annealed copper wire.The diameter of leading-in conductor 7 for example is 1mm (millimeter).On leading-in conductor 7, be formed with stage portion 8.Stage portion 8 for example is set as roughly tabular, forms through the part of leading-in conductor 7 is pressurizeed.Owing to only the part of leading-in conductor 7 is pressurizeed, thereby need not to use new parts in order to form stage portion 8.The width of stage portion 8 for example is set as 1.2mm.Stage portion 8 is formed at apart from the top of leading-in conductor 7 the for example position of 1.6mm.The length of stage portion 8 (with the length of the extending direction equidirectional of leading-in conductor 7) for example is set as 1mm.
Can with correspondingly width, length and the formation position etc. of appropriate change stage portion 8 such as size of temperature fuse 1.For example, in example shown in Figure 2, have predetermined distance ground apart from fusible 4 weld part and be formed with stage portion 8 with leading-in conductor 7.Also predetermined distance can be set, for example also can be near fusible 4 formation stage portion 8 with the weld part of leading-in conductor 7.
Leading-in conductor 9 for example uses tin annealed copper wire.The diameter of leading-in conductor 9 for example is 1mm.On leading-in conductor 9, be formed with stage portion 10.Stage portion 10 for example is set as roughly tabular, forms through the part of leading-in conductor 9 is pressurizeed.Owing to only the part of leading-in conductor 9 is pressurizeed, thereby need not to use new parts in order to form stage portion 10.The width of stage portion 10 for example is set as 1.2mm.Stage portion 10 is formed at apart from the top of leading-in conductor 9 the for example position of 1.6mm, and the length of stage portion 10 (with the length of the extending direction equidirectional of leading-in conductor 9) for example is set as 1mm.
Can with correspondingly width, length and the formation position etc. of appropriate change stage portion 10 such as size of temperature fuse 1.For example, in example shown in Figure 2, have predetermined distance ground apart from fusible 4 weld part and be formed with stage portion 10 with leading-in conductor 9.Also predetermined distance can be set, for example also can be near fusible 4 formation stage portion 10 with the weld part of leading-in conductor 9.
Housing
Below, housing 2 is described.The A of Fig. 3 representes an example in the cross section of housing 2, and the B of Fig. 3 representes the left surface of housing 2.Housing 2 is the side's of being set as tubular for example.Housing 2 also can be set as cylindric other shape that waits.As the material of housing 2, for example use as a kind of of pottery and aluminium oxide ceramics (Al with excellent mechanical strength, thermal endurance, electrical insulating property and chemical stability etc.
2O
3).As the material of housing 2, also can use other materials such as resin.For example, carry out the housing 2 of sintering processing formation through powder with desirable shape to aluminium oxide ceramics.
The other end at housing 2 is formed with roughly foursquare opening.Form recess C1 via foursquare opening roughly towards the inside of housing 2.Substantial middle in the bottom surface of recess C1 forms through hole H1.The diameter of this through hole H1 is set as less than the width of foursquare opening roughly, for example is set as 1.1mm.Its result is at the whole inner peripheral surface formation protuberance 3 of housing 2.
In addition, the somewhat larger in diameter of through hole H1 is slightly less than the width of stage portion 8 in the diameter of leading-in conductor 7.Therefore, can make leading-in conductor 7 run through through hole H1.And when leading-in conductor 7 was run through through hole H1, stage portion 8 was by protuberance 3 fastenings.
Wherein, the size of protuberance 3 and temperature fuse 1, the position etc. that is formed on the stage portion 8 on the leading-in conductor 7 correspondingly form and go up in position.Shape that can appropriate change protuberance 3.Can be not do not form protuberance 3 at the whole inner peripheral surface of housing 2 yet.For example, under the situation of housing 2 side's of being tubulars, protuberance 3 only is formed on two relative faces of inside of housing 2.
To sealants such as recess C1 filling epoxy resins.Sealant also can use the thermosetting resin beyond the epoxy resin.Through to the recess C1 of the inside that is formed on housing 2 filling sealing agent, can increase the inner peripheral surface of housing 2 and the bond area of sealant, thereby can improve bond strength.Wherein, when filling sealing agent, in through hole H1, be penetrated with leading-in conductor 7.Therefore, the sealant that is filled among the recess C 1 can be via through hole H 1 inflow space S1.
And, because through improving to the recess C1 of the inside that is formed on housing 2 filling sealing agent bond strength, thereby the mechanical strength of temperature fuse 1 anti-load improves.For example, form (forming) processing, following the load that is shaped processing and produces to be applied under the situation on the sealant, can prevent that sealant from being destroyed by load at leading-in conductor 7 to the outside that exports to housing 2.
For example be formed with the opening of circular at an end of housing 2.Form space S 1 from the opening of circular towards the inside of housing 2.Space S 1 for example is set as cylindric.Space S 1 is connected via through hole H1 with recess C1.
Lid
Below, lid 11 is described.The A of Fig. 4 representes the cross section of lid 11, and the B of Fig. 4 representes the side of lid 11.As the material of lid 11, for example use as a kind of of pottery and aluminium oxide ceramics (Al with excellent mechanical strength, thermal endurance, electrical insulating property and chemical stability etc.
2O
3).As the material of lid 11, also can use other materials such as resin.For example, carry out the lid 11 of sintering processing formation through powder with institute's desirable shape to aluminium oxide ceramics.
The lid 11 that is enclosed within on the leading-in conductor 9 is inserted from the opening of the circular of housing 2, and be contained in the space S 1.And, lid 11 by stage portion 10 fastenings in housing 2 inboards on the position of the opening predetermined distance of the circular of housing 2.From the opening of the circular of housing 2 to forming space S 2 lid 11.To sealants such as space S 2 filling epoxy resins.Through to the volume inside S2 filling sealing agent that is formed on housing 2, can increase the inner peripheral surface of housing 2 and the bond area of sealant, thereby can improve bond strength.
And, because through improving to the volume inside S that is formed on housing 22 filling sealing agent bond strengths, thereby the mechanical strength of temperature fuse 1 anti-load improves.For example, form processing, follow processing and forming and the load that produces is applied under the situation on the sealant, can prevent that sealant from being destroyed by load at leading-in conductor 9 to the outside that exports to housing 2.
As stated, the temperature fuse 1 in first execution mode can be positioned at fuse element 6 substantial middle of housing 2.And fuse element 6 does not contact with the inner peripheral surface of housing 2 each other.Therefore, the anti-insulating properties of temperature fuse 1 improves.And, can be with the recess C1 of the inside that is formed on housing 2 and the volume inside S2 that is formed on housing 2 as the space that supplies sealant to fill, thus the bond strength of sealant can be improved.Therefore, under the situation of the processing of having carried out to leading-in conductor 7, leading-in conductor 9 being shaped etc., can prevent that sealant is by following the load that is shaped processing and produces to destroy.
The work of temperature fuse
One example of the work of temperature fuse 1 is described.Fig. 5 is the figure of an example of the state after 1 work of expression temperature fuse.When the temperature of the abnormal temperature of the equipment of application of temperature fuse 1, self-heating reached fusible 4 fusing point, fusible 4 fusion took place.Fusible the 4 facilitation performance surface tension of utilizing solder flux 5 of fusion fuses through near spheroidizing weld part.Through fusible 4 fusing, cut off the circuit of application of temperature fuse 1.
Wherein, through being formed with stage portion 10, can keep predetermined distance between with lid 11 near the weld part of soluble portions 4 and leading-in conductor 9.At this, if do not form stage portion 10, the lid 11 that then is enclosed within on the leading-in conductor 9 for example can be made soluble portions 4 and lid 11 contact with each other by the protruding fastening of weld part.If soluble portions 4 contacts with each other with lid 11, then lid 11 can hinder the effect of soluble portions 4 spheroidizings, might cause that work is bad.But, utilize stage portion 10 between soluble portions 4 and lid 11, to keep predetermined distance, thereby can prevent the problem of above-mentioned that kind.Stage portion 8 is also the same with stage portion 10.Utilize stage portion 8 between protuberance 3 and weld part, to keep predetermined distance, thereby can prevent that protuberance 3 from hindering the effect of soluble portions 4 spheroidizings.
Second execution mode
The structure of temperature fuse
Below, second execution mode of the utility model is described.Fig. 6 representes the structure example in the cross section of the temperature fuse 21 in second execution mode.Wherein, in Fig. 6, to first execution mode in the identical identical Reference numeral of position mark of temperature fuse 1.
Wherein, the size of protuberance 23 and temperature fuse 21, the position etc. that is formed on the stage portion 8 on the leading-in conductor 7 correspondingly form and go up in position.Shape that can appropriate change protuberance 23.Can be not yet near the other end of housing 22 whole inner peripheral surface form protuberance 23.For example, under the situation of housing 22 side's of being tubulars, protuberance 23 only is formed on two relative faces of inside of housing 22.
In space S 3, accommodate fusible 4.Fusible 4 substantial middle that for example is accommodated in the inside of housing 22.Be covered with solder flux 5 fusible 4 surfaces coated.End at fusible 4 is welded with leading-in conductor 7.Leading-in conductor 7 extends towards the outside of housing 22 from fusible 4 weld part with leading-in conductor 7.The top of leading-in conductor 7 is exported to the outside of housing 22 via recess C2 and roughly foursquare opening.Identical with first execution mode, on leading-in conductor 7, be formed with stage portion 8.
Be welded with leading-in conductor 9 at fusible 4 the other end.Leading-in conductor 9 extends towards the outside of housing 22 from fusible 4 weld part with leading-in conductor 9.The top of leading-in conductor 9 is exported to the outside of housing 22 via the opening of the circular of housing 22.Identical with first execution mode, on leading-in conductor 9, be formed with stage portion 10.Wherein, because the details of fusible 4, solder flux 5, leading-in conductor 7, stage portion 8, leading-in conductor 9 and stage portion 10 is with identical with reference to the content of Fig. 2 explanation, thereby the explanation of omission repetition.
On leading-in conductor 7, be with lid 24 as an example of another lid.Identical with lid 11, lid 24 for example also is set as discoid.The diameter of lid 24 is set as the diameter of the opening that is slightly less than circular, can insert lid 24 from the opening of the circular of housing 22.In addition, the diameter of lid 24 is set as the diameter that is slightly larger than through hole H3.Therefore, lid 24 can't run through through hole H3 by protuberance 23 fastenings.
The diameter of the hollow bulb that lid 24 is had for example is set as the diameter that is slightly larger than leading-in conductor 7, and is set as the width that is slightly less than stage portion 8.For example the opening of lid 24 from the circular of housing 22 inserted, and be contained in the space S 3.An end that is contained in the lid 24 in the space S 3 is by protuberance 23 fastenings.When leading-in conductor 7 ran through lid 24, stage portion 8 was by lid 24 fastenings.That is, lid 24 is sandwiched between protuberance 23 and the stage portion 8 and is supported (by protuberance 23 and stage portion 8 clampings).
Between the opening of the circular of housing 22 and lid 25, form space S 4.Through to sealants such as recess C2 and space S 4 filling epoxy resins and make sealant cures, formation temperature fuse 21.Can be to the recess C2 of the inside that is formed on housing 22 and the volume inside S4 filling sealing agent that is formed on housing 22, identical with temperature fuse 1, can improve the mechanical strength of temperature fuse 21.
The assemble method of temperature fuse
One example of the assemble method of temperature fuse 21 is described.Wherein, the assembling of temperature fuse 21 for example be integrally formed leading-in conductor 7 and leading-in conductor 9 being welded on respectively on fusible 4 and apply solder flux 5 to fusible 4 after carry out.At first, the opening from the circular of housing 22 inserts lid 24.For example, lid 24 is inserted and is contained in the inside of space S 3 from the opening of the circular of housing 22.The lid 24 of inside that is contained in space S 3 is by protuberance 23 fastenings.Then, the opening from the circular of housing 22 inserts leading-in conductor 7.Through inserting leading-in conductor 7, the part of leading-in conductor 7, fuse element 6 and leading-in conductor 9 is contained in the space S 3 successively.
Leading-in conductor 7 runs through the hollow bulb of lid 24.Then, via through hole H3, recess C 2 top of leading-in conductor 7 is derived to the outside of housing 22.When the stage portion 8 of leading-in conductor 7 during by lid 24 fastenings, becoming to make leading-in conductor 7 run through again.At this moment, lid 24 is by protuberance 23 and stage portion 8 clampings, and fuse element 6 is positioned at the substantial middle of the inside of housing 22.
Then, the top of lid 25 from leading-in conductor 9 is enclosed within on the leading-in conductor 9.Insert lids 25 from the opening of the circular of housing 22 to space S 3.Then, be enclosed within lid 25 on the leading-in conductor 9 in space S 3 by stage portion 10 fastenings.Utilize lid 24 and lid 25, with the surface of fuse element 6 and the discontiguous each other state support fuse element 6 of inner peripheral surface of housing 2.
Then, from foursquare opening roughly to sealants such as recess C2 filling epoxy resins.From the opening of circular to sealants such as space S 4 filling epoxy resins.Through making the sealant cures of filling, formation temperature fuse 21.Wherein, the assemble method of above-mentioned temperature fuse 21 is examples of its assemble method and can suitably changes.For example, also can be after lid 24 being enclosed within on the leading-in conductor 7 and being enclosed within lid 25 on the leading-in conductor 9, with the inside of leading-in conductor 7 insertion housings 22.In addition, also no matter respectively to the order of recess C2 and space S 4 filling sealing agents.
Variation
More than, a plurality of execution modes of clear specifically the utility model.But the utility model is not limited to above-mentioned arbitrary execution mode, can carry out various variations based on the technical conceive of the utility model.In above-mentioned execution mode, form stage portion 8 through leading-in conductor 7 is pressurizeed, but also can pass through formation stage portion 8 such as leading-in conductor 7 application of resin.Stage portion 10 is also the same with stage portion 8.
In addition, in the scope of the contradiction on generating technique not, can be with execution mode and the variation of the structure applications in each execution mode and the variation in other.And, in the scope of the contradiction on generating technique not, also can bring into play the effect in each execution mode and the variation in other embodiments.
Description of reference numerals
1,21, temperature fuse; 2,22, housing; 3,23, protuberance; 7,9, leading-in conductor; 8,10, stage portion; 4, fusible portion; 6, fuse element; 11,24,25, lid; C1, C2, recess; S2, S4, space.
Claims (6)
1. a temperature fuse is characterized in that, comprising:
Fusible portion;
First leading-in conductor and second leading-in conductor, it extends from said fusible two ends respectively;
First step portion and second step portion, said first step portion is formed on said first leading-in conductor, and said second step portion is formed on said second leading-in conductor;
The housing of tubular inserts said fusible portion, said first leading-in conductor and said second leading-in conductor from the opening of one of which end, and exports to outside state with the end with first leading-in conductor and second leading-in conductor and hold said fusible portion;
Protuberance, it is formed near the inner surface the other end of said housing, is used for the fastening first leading-in conductor side; And
Lid, it is enclosed within on said second leading-in conductor and by the fastening of second step portion.
2. temperature fuse according to claim 1 is characterized in that,
Said first step portion is by said protuberance fastening.
3. temperature fuse according to claim 1 is characterized in that,
On said first leading-in conductor, be with another lid, said another lid is by said first step portion and said protuberance clamping.
4. according to each described temperature fuse in the claim 1 to 3, it is characterized in that,
Between the other end of said housing and said protuberance, be formed for the recess of filling sealing agent.
5. according to each described temperature fuse in the claim 1 to 3, it is characterized in that,
Between end of said housing and said lid, be filled with sealant.
6. temperature fuse according to claim 4 is characterized in that,
Between end of said housing and said lid, be filled with sealant.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011082211A JP5782285B2 (en) | 2011-04-01 | 2011-04-01 | Thermal fuse |
| JP2011-082211 | 2011-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202549763U true CN202549763U (en) | 2012-11-21 |
Family
ID=46993214
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210096329.3A Expired - Fee Related CN102737921B (en) | 2011-04-01 | 2012-04-01 | temperature fuse |
| CN2012201383337U Expired - Fee Related CN202549763U (en) | 2011-04-01 | 2012-04-01 | Temperature fuse |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210096329.3A Expired - Fee Related CN102737921B (en) | 2011-04-01 | 2012-04-01 | temperature fuse |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5782285B2 (en) |
| CN (2) | CN102737921B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102737921A (en) * | 2011-04-01 | 2012-10-17 | 田村温度部品有限公司 | Temperature fuse |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6437221B2 (en) * | 2014-06-27 | 2018-12-12 | デクセリアルズ株式会社 | Switch element, switch circuit and alarm circuit |
| JP6437253B2 (en) * | 2014-09-12 | 2018-12-12 | デクセリアルズ株式会社 | Protective element and mounting body |
| WO2018092456A1 (en) * | 2016-11-21 | 2018-05-24 | ソニー株式会社 | Connection member, moving body and power supply system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58147138U (en) * | 1982-03-29 | 1983-10-03 | 日本電気ホームエレクトロニクス株式会社 | temperature fuse |
| JPS59149355U (en) * | 1983-03-25 | 1984-10-05 | 日本電気ホームエレクトロニクス株式会社 | temperature fuse |
| JPS6076844U (en) * | 1983-10-31 | 1985-05-29 | 関西日本電気株式会社 | temperature fuse |
| JPH05205607A (en) * | 1992-01-28 | 1993-08-13 | Techno Enajisu Kk | Fuse |
| KR20010110581A (en) * | 2000-06-07 | 2001-12-13 | 최선진 | Method of manufacturing high voltage fuse for microwave oven with integrated fuse and case and the fuse manufactured therefrom |
| US6774760B2 (en) * | 2001-06-05 | 2004-08-10 | Cooper Technologies Company | Fuse element positioning body |
| JP2005141912A (en) * | 2003-11-04 | 2005-06-02 | Anzen Dengu Kk | Thermal fuse |
| JP5782285B2 (en) * | 2011-04-01 | 2015-09-24 | 株式会社タムラ製作所 | Thermal fuse |
-
2011
- 2011-04-01 JP JP2011082211A patent/JP5782285B2/en active Active
-
2012
- 2012-04-01 CN CN201210096329.3A patent/CN102737921B/en not_active Expired - Fee Related
- 2012-04-01 CN CN2012201383337U patent/CN202549763U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102737921A (en) * | 2011-04-01 | 2012-10-17 | 田村温度部品有限公司 | Temperature fuse |
| CN102737921B (en) * | 2011-04-01 | 2016-12-14 | 株式会社田村制作所 | temperature fuse |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012216478A (en) | 2012-11-08 |
| CN102737921A (en) | 2012-10-17 |
| CN102737921B (en) | 2016-12-14 |
| JP5782285B2 (en) | 2015-09-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160622 Address after: Tokyo, Japan, Japan Patentee after: Tamura Manufacturing Co., Ltd. Address before: Saitama Prefecture, Japan Patentee before: Tamura Temperature Component Corporation Patentee before: Tamura Manufacturing Co., Ltd. |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161214 Address after: Osaka Japan Patentee after: Uchihashi Estack Co., Ltd. Address before: Tokyo, Japan, Japan Patentee before: K.K. Tamura Seisakusho |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170504 Address after: Tokyo, Japan, Japan Patentee after: Tamura Manufacturing Co., Ltd. Address before: Osaka Japan Patentee before: Uchihashi Estack Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180815 Address after: Osaka Japan Patentee after: Uchihashi Estack Co., Ltd. Address before: Tokyo, Japan, Japan Patentee before: Tamura Manufacturing Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20200401 |
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| CF01 | Termination of patent right due to non-payment of annual fee |