KR101954884B1 - Manufacturing method of sheet-type thermal fuse - Google Patents

Manufacturing method of sheet-type thermal fuse Download PDF

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Publication number
KR101954884B1
KR101954884B1 KR1020170046613A KR20170046613A KR101954884B1 KR 101954884 B1 KR101954884 B1 KR 101954884B1 KR 1020170046613 A KR1020170046613 A KR 1020170046613A KR 20170046613 A KR20170046613 A KR 20170046613A KR 101954884 B1 KR101954884 B1 KR 101954884B1
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KR
South Korea
Prior art keywords
sheet
alloy
forming
metal sheet
fuse
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Application number
KR1020170046613A
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Korean (ko)
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KR20180114663A (en
Inventor
이율우
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이율우
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Priority to KR1020170046613A priority Critical patent/KR101954884B1/en
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Publication of KR101954884B1 publication Critical patent/KR101954884B1/en

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00Thermally-actuated switches
    • H01H37/74Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H69/00Apparatus or processes for the manufacture of emergency protective devices
    • H01H69/02Manufacture of fuses
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02Details
    • H01H85/04Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/041Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
    • H01H85/046Fuses formed as printed circuits
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02Details
    • H01H85/04Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/041Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
    • H01H85/0411Miniature fuses
    • H01H2085/0412Miniature fuses specially adapted for being mounted on a printed circuit board

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet type thermal fuse and a method of manufacturing a sheet type thermal fuse and more particularly to a sheet type thermal fuse and a sheet type fuse, And a method of manufacturing a sheet-type thermal fuse. The present invention relates to a sheet-type thermal fuse and a method of manufacturing such a sheet-type thermal fuse.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a sheet-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet type thermal fuse and a method of manufacturing a sheet type thermal fuse and more particularly to a sheet type thermal fuse and a sheet type fuse, And to a method of manufacturing a sheet type thermal fuse and a sheet type thermal fuse in which an ultra slim electronic product having a sheet type thermal fuse can be externally or internally mounted.

As known in the art, a substrate-type thermal fuse installed to prevent thermal damage to an electric / electronic device is basically formed by bridging a low-melting-point available alloy piece between lead terminals. When an abnormality occurs in a device, The melting point of the low-melting-point alloy of the board-type thermal fuse is melted and the electric current supplied to the device is originally cut off, thereby preventing damage to the device.

Here, as the material of the low-melting-point alloying alloy, a lead alloy having a low melting point and a lead-tin alloy are mainly used, and lead terminals of a nickel alloy are bound to both ends of the low melting point alloying alloy.

The upper and lower portions of the low melting point fusible alloy member are covered with an insulating substrate and a cover so as to ensure physical stability and to prevent safety accidents such as electric shock.

However, in the above structure, the ferrite-tin alloy and the nickel alloy used for the soluble alloy pieces bridged between the end portions of the lead terminals have different physical properties from each other, so that joining by welding is practically difficult.

Therefore, conventionally, a method of attaching a separate metal electrode made of a metal piece such as copper, which is superior in bonding property with a soluble alloy, to the end portion of the lead terminal, and bonding the soluble alloy piece to the upper surface of the metal electrode by welding .

However, in the case of the board type thermal fuse of this type, since the fusible alloy pieces are stacked on the upper portion of the metal electrode, the fusible metal piece, especially the welded portion, protrudes to the uppermost portion and is vulnerable to external physical shock or pressure.

In addition, when the resin film is used to cover the upper portion, the cross-sectional shape becomes substantially hemispherical to make it difficult to form a thin film. In addition, since the resin film and the substrate type thermal fuse are bonded with a very small bonding area, It is difficult to guarantee the durability between the two.

In order to further miniaturize such a conventional board type thermal fuse, a substrate type thermal fuse in which a metal electrode is not separately provided at the end portion of the lead terminal but a solder alloy piece is directly interposed between the end portions of the lead terminals Research and development.

For example, as shown in FIG. 10, in order to improve bonding with the soluble alloy piece 40 at the tip end of the lead terminal by plating (20 ') the tip of the lead terminal 30 with a metal such as copper, There has been proposed a substrate-type thermal fuse 500 in which an electrode is removed and a tip portion 30 of the lead terminal is directly connected to a usable metal piece 40.

However, although this type of structure has advantages in that the shape and structure are simplified, the melted solder alloy has poor affinity with the nickel alloy forming the lead terminal, resulting in poor solderability and deteriorating the function of the thermal fuse.

In addition, in this configuration, the cross section of the thermal fuse is welded in such a manner that the fusible alloy pieces 40 protrude from the upper surface of the metal plating layer 20 'formed on the upper portion of the lead terminal 30, Since the insulating cover 50 is in the form of a curved shape, the fusible portion always presses the fusible alloy piece by the elasticity of the bent portion, and the portion of the fusible alloy piece that is protruded is not protected.

That is, in the conventional substrate type thermal fuses, after the soluble alloy pieces are stacked between the lead terminals and the lead terminals, the end portions of the soluble alloy pieces stacked on the inner ends of the lead terminals are locally melted, The alloy piece is bonded by welding, and the portion where the soluble alloy piece is installed is sealed with a substrate and an insulating cover or the like.

Therefore, since the fusible alloy piece is welded to the inner end of the lead terminal by local welding by welding, it is difficult to form a stable bonding state with the lead terminal, so that it is difficult to ensure durability.

In addition, since the cover has a shape protruding upward in consideration of the projecting height of the soluble alloy piece protruding from the surface of the lead terminal, it is difficult to reduce the thickness of the cover.

KR 10-2002-0008774 A KR 10-2011-0025102 A KR 10-0540579 B1

It is an object of the present invention, which is devised to solve the problems described above, to provide a thin sheet-like sheet type in which the soluble matter is not protruded to the upper portion of the metal terminal while ensuring a stable connection state between the soluble matter and the metal terminal, And to provide a sheet type thermal fuse that can be installed on the exterior or interior of an ultra slim electronic product, and a method of manufacturing the same.

The above object is achieved by the following constitutions provided in the present invention.

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A method of manufacturing a sheet-like thermal fuse according to the present invention comprises:

A forming hole forming step of forming a forming hole passing through the metal sheet plate vertically;

A lower base film disposing step of disposing a lower base film stacked on a bottom surface of the metal sheet plate to form a forming mold in which the bottom of the metal sheet is opened by the stacked lower base film;

The method for producing a metal sheet according to any one of claims 1 to 3, wherein the metal alloy sheet is hot rolled by hot melting after putting a soluble alloy into the metal sheet plate to mold a usable alloy sheet which is melted in the mold, A hot-forming step of filling the melted melted alloy material in a mold of the melted melted alloy material to form a sheet of the melted melted alloy sheet; And

A fuse molded body formed by cutting and dividing a metal sheet plate with reference to the above-described fusible alloy sheet to form a fusible alloy sheet formed by hot melting in a mold between a pair of metal sheet terminals formed by dividing a metal sheet plate And a divided cutting process for forming the cut portion.

As described above, according to the present invention, a sheet-like thermal fuse is provided for hot-forming a fusible alloy sheet between metal sheet terminals and heating the fusible alloy to blow out the circuit when the heat is provided from the outside or overheated by resistance heat generation I am proposing.

Particularly, in the present invention, a fusible article having a metal sheet terminal formed at both ends of a fusible alloy sheet by molding a usable alloy sheet by molding a usable alloy sheet in each of the molding holes formed in a metal sheet plate, .

As in the present invention, the melt-formable alloy sheet is formed in a sheet form in a mold and fused to the inner wall of the metal sheet terminal, and thus has excellent durability.

Therefore, the sheet-type thermal fuse according to the present invention is formed by hot fusing between the metal sheet terminal and the soluble alloy sheet, so that a stable bonding state between the metal sheet terminal and the fusible alloy sheet is formed. As a result, A phenomenon that the sheet terminal and the soluble alloy sheet are physically disconnected is prevented.

In addition, the melted solder alloy sheet which has generated overheating flows into the flow space portion, thereby breaking the metal sheet terminals energized by the usable alloy sheet, thereby ensuring durability and reliability in operation.

Thus, the present invention is configured in a thin sheet-like shape, and can be installed and applied to a slim electronic product in which a mounting surface forms a curved surface or a narrow installation space.

FIGS. 1 to 6 are a perspective view, a plan view, and a sectional view showing the overall configuration of a sheet-type thermal fuse proposed as a preferred embodiment of the present invention,
FIG. 7 shows a disconnection state of a sheet-like thermal fuse proposed in the preferred embodiment of the present invention,
FIGS. 8 to 9 sequentially show the manufacturing process of the sheet-type thermal fuse proposed in the preferred embodiment of the present invention,
10 is a cross-sectional view of a conventional sheet-type thermal fuse.

Hereinafter, a method of manufacturing a sheet-type thermal fuse and a sheet-type thermal fuse proposed as preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIGS. 1 to 6 are a perspective view, a plan view, and a cross-sectional view showing the overall configuration of a sheet-type thermal fuse proposed as a preferred embodiment of the present invention. FIG. 7 is a cross- FIG. 8 to FIG. 9 sequentially show the manufacturing process of the sheet-type thermal fuse proposed in the preferred embodiment of the present invention.

The sheet type thermal fuse 1 or 1 'according to the present invention is a sheet type thermal fuse according to the present invention which is heated to a temperature higher than a set temperature by resistance heat generated by external heat or overcurrent, 20 are disconnected while being hot-melted and cut off current when overheating occurs.

1 to 6, the sheet-like thermal fuse 1, 1 'has a structure in which a soluble alloy sheet 20 is disposed between a pair of spaced apart metal sheet terminals 10A, 10B And a sealing layer 30 for sealing the inner ends of the metal sheet terminals 10A and 10B joined to the fusible alloy sheet 20 and the fusible alloy sheet 20.

1 to 3, the sheet-type thermal fuse 1 or 1 'may include a single fuse molded body, and may include a plurality of fuse molded bodies, as shown in FIGS. 4 to 6, Type.

Particularly, according to the present invention, it is possible to prevent the melting of the soluble alloy sheet 20 between the metal sheet terminals 10A and 10B without the need to weld the ends of the soluble alloy sheet 20 between the separated metal sheet terminals 10A and 10B. Alloy sheet 20 is integrally formed by hot forming so that a stable bonding state between the metal sheet terminals 10A and 10B and the soluble alloy sheet 20 is formed by hot melt molding.

In the present invention, in manufacturing a fuse-molded body in which a fusible alloy sheet 20 is formed between the pair of metal sheet terminals 10A and 10B, a forming frame 11 is formed on the metal sheet 10 Molding the soluble alloy sheet 20 in the mold sheet 10 by hot melting the fusible alloy material 20a after putting the soluble alloy material 20a into the mold 11, The metal sheet 10 having the metal alloy sheet 20 formed thereon is divided and cut so that the metal sheet 10 is heated and melted between the pair of metal terminal sheets 10A and 10B, 20 are integrally molded.

At this time, the fusible end 21 of the fusible alloy sheet 20 formed by the hot-forming is formed as shown in Figs. 3 and 6 by the inner wall of the metal sheet terminal 10A or 10B forming the inner wall of the fusing frame, (10A-a, 10B-a) so that stable fusing between the metal sheet terminal and the soluble alloy sheet is achieved.

Referring to the drawing, the fusible alloy sheet 20 is formed in a recessed shape in which a fusing end 21 having a relatively higher height than the central portion is formed by surface tension in the hot melt forming process, The height of the fusible alloy sheet 20 including the metal sheet terminals 10A and 10B is made lower than the height of the metal sheet terminals 10A and 10B so that the fusible alloy sheet 20 is not projected onto the surfaces of the metal sheet terminals 10A and 10B do.

The soluble alloy sheet 20 is formed in series with the metal sheet terminals 10A and 10B by hot forming so as not to protrude from the surfaces of the metal sheet terminals 10A and 10B, It is possible to manufacture a sheet-like thermal fuse 1, 1 'having an ultra-thin thickness of 1 mm.

A flow space portion 13 communicating with the fusible alloy sheet 20 constituting the fuse formed body is formed in the sealing film layer 30 that hermetically closes the fuse molded body from the outside, The sheet 20 horizontally flows into the flow space portion 13 and is broken while being drawn in, so that the pair of metal sheet terminals 10A and 10B energized by the fusible alloy sheet 20 are quickly cut off.

The flow space portion 13 may be formed by arranging an auxiliary sheet 14 having a flow space portion 13 in a fusible alloy sheet 20 as shown in FIGS. 1 to 3, 6, it can be formed on the side of the fusible alloy sheet 20 so as to penetrate the inner side of the metal sheet 10 sealed by the sealing layer 30.

A flux 22 is filled in the flow space portion 13 formed in the fusible alloy sheet 20 to increase the fluidity of the fusible alloy sheet 20 melted by overheating.

According to the present embodiment, the lower base film 31 and the upper base film 32 are adhered to each other by hot fusion bonding to the bottom and top surfaces of the metal sheet 10.

A lower sealing film 33 and an upper sealing film 34 forming the sealing layer 30 are disposed on the bottom and upper surfaces of the fuse molded body in which the flow space portion 13 is formed, Thereby closing the fluidized space portion 13.

The sealing layer 30 prevents the leakage of the fusible alloy sheet 20 and the fusible alloy sheet 20 due to the overheat of the fusible alloy sheet 20 and enhances the flexibility and durability of the fuse- .

According to the present embodiment, not only the sheet type adopted in the present embodiment but also the molded type molded through the molding process can be adopted as the sealing layer portion 30, and all of them are intended as the right range in the present invention.

2 and 3, a pair of metal sheet terminals 10A and 10B connected to the circuit are connected to the sheet member 20 via the usable alloy sheet 20, When the fusible alloy sheet 20 is hot-melted by overheating, the fusible alloy sheet 20 is disconnected as shown in Fig. 7 to disconnect the metal sheet terminals 10A and 10B, Disconnect the connection.

That is, the soluble alloy material 20a in which the fusible alloy sheet 20 is melted by the overheating is increased in fluidity by the flux 22 filled in the flow space portion 13, and is agglomerated spherically by surface tension , The agglomerated fusible alloy material 20a moves to the flow space portion 13, and a fast and stable disconnection is made.

Thus, the sheet-type thermal fuse 1, 1 'according to the present invention can be installed in a narrow installation space formed in a product, such as an F-PCB, and can be mounted on the surface of the product in various forms, If overheating occurs due to the heat generated by the heat generated by the product itself or the heat generated by the self-resistance, the circuit is disconnected to secure the electrical safety of the product.

In the meantime, the present invention proposes a method of manufacturing a sheet type thermal fuse 1, 1 'having reliability, durability and flexibility of such quality. In the following, referring to FIGS. 8 to 9, do.

[ Molding ball  Forming process]

8A, the metal sheet 10 is formed of a thin copper plate, aluminum or the like, and the metal sheet 10 is made of a metal sheet, Various machining methods such as press working, laser machining, wire cutting machining, and the like can be utilized.

In the present embodiment, a plurality of molding holes 12 are formed at uniform intervals on the entire width of the metal sheet 10, and a plurality of sheet-type thermal fuses 1 are collectively manufactured through one metal sheet 10 do.

[Mold forming fair ]

8B, the lower base film 31 is disposed on the lower surface of the metal sheet 10 on which the plurality of molding holes 12 are formed, and the metal sheet 10 , The bottom of the molding hole 12 is closed to form a molding die 11 having an open upper portion formed of the molding hole 12 closed at the bottom.

Here, the lower base film 31 is made of a thermoplastic or thermosetting resin having excellent heat resistance and flexibility.

In this embodiment, the lower base film 31 made of PET material is disposed on the bottom surface of the metal sheet 10 on which the molding holes 11 are formed through a bonding method.

[Hot forming step]

In this step, the soluble alloy material 20a is charged into each of the forming molds 11 formed on the metal sheet 10 as shown in Fig. 8C and then hot-melted to form a molten soluble alloy material (20a) is formed into a sheet-like shape.

In the present invention, for example, a soluble alloy material 20a mixed with a soluble alloy lead and a flux is put into each forming die 11 of a metal sheet 10, and then the surface of the metal sheet 10 is covered with a scraper S to clean the surface of the metal sheet 10 and to flatten the soluble alloy material 20a charged into each of the forming molds 11.

Thereafter, the metal sheet 10 is put into a hot forming furnace (not shown), and the hot-melted soluble alloy sheet 20a is formed into a sheet form into a mold frame 11 .

In another embodiment, it is possible to form a soluble alloy sheet in which the molten soluble alloy material is formed into a sheet shape by filling the molten soluble alloy in a mold of a preheated metal sheet plate in a hot forming furnace, Are also intended to be within the scope of the present invention.

[Upper base film Lamination process ]

In this step, the upper base film 32 is disposed on the upper surface of the metal sheet 10 on which the soluble alloy sheet 20 is formed, as shown in FIG. 8D, and the forming frame 11, on which the usable alloy sheet 20 is formed, Is closed by the upper base film (32).

Here, the upper base film 32 is made of a thermoplastic or thermosetting resin having excellent heat resistance and flexibility as in the above-described lower base film 31. In this embodiment, an upper base film 32 made of PET material is used And is adhered to the upper surface of the metal sheet 10.

[Split Cutting Process]

In this step, the metal sheet 10 is cut and divided around the soluble alloy sheet 20 to form a pair of metal sheet terminals 10A and 10B Forms the fuse formed body connected by the usable alloy sheet 20.

In a preferred embodiment, at least one flow space portion 13 is formed in the metal sheet 10, to which the lower base film 31 and the upper base film 32 are bonded, as shown in FIG. 8E, 20, the flow space portion 13 is formed.

9A, the auxiliary sheet 14 having the flow space portion 13 is disposed in the fusible sheet 20 constituting the fuse-formed body, and the flow of the fusible sheet 20 to the fusible alloy sheet 20 So that the space portion 13 is formed.

[Bottom sealing film placement fair ]

In this step, as shown in Figs. 8F and 9B, the bottom sealing film 33 is stacked on the bottom surface of the fuse-formed body to close the bottom of the open space part 13, respectively.

The lower sealing film 33 is made of a thermoplastic or thermosetting resin having excellent heat resistance and flexibility as in the case of the base films 31 and 32 described above.

In this embodiment, the bottom sealing film 33 made of a PET material is disposed on the bottom surface of the fuse molded body to which the lower base film 31 is fused.

[Flux Filling Process]

In this step, as shown in Figs. 8F and 9B, the flux 22 is filled in each of the flow space portions 13 whose bottom is closed by the bottom sealing film 33. Fig.

Here, the flux 22 removes the surface oxidation layer of the hot-melted alloy sheet 20 by overheating and functions so that the hot-melted alloy sheet 20 quickly flows into the flow space portion 13 and is broken .

[ Top  Sealing film Lamination process ]

In this step, the upper sealing film 34 is disposed on the upper surface of the fuse-molded body as shown in Figs. 8F and 9B, and the sealing space 30, in which the flow space portion 13 filled with the flux 22 is sealed, Is formed on the fuse formed body.

The upper sealing film 34 is made of a thermoplastic or thermosetting resin having excellent heat resistance and flexibility as the base films 31 and 32 and the lower sealing film 33 described above.

In this embodiment, the upper sealing film 34 made of a PET material is disposed on the upper surface of the fuse-molded body to which the upper base film 32 is hot-fused.

Thus, a sheet-like fuse formed body in which a usable alloy sheet is formed between metal sheet terminals through such a series of manufacturing processes; And a sealing layer portion formed on the upper surface and the lower surface of the fuse-formed body to seal the interior of the metal sheet terminal and the usable alloy sheet of the fuse-formed article.

1. Sheet-type thermal fuse
10. Metal sheet plates 10A, 10B. Metal sheet terminal
11. Molding mold 12. Molding hole
13. Floating space part 14. Auxiliary sheet
20. Fusible alloy sheet 20a. Soluble alloy water
21. Fusing 22. Flux
30. The closed-
31. Lower base film 32. Upper base film
33. Lower sealing film 34. Top sealing film

Claims (10)

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  6. A forming hole forming step of forming a forming hole passing through the metal sheet plate vertically;
    A forming mold forming step of forming a forming mold in which a bottom base film is stacked on the bottom surface of the molding hole of the metal sheet plate and the bottom of the molding hole of the metal sheet plate opened by the stacked lower base film is closed;
    The method for producing a metal sheet according to any one of claims 1 to 3, wherein the metal alloy sheet is hot rolled by hot melting after putting a soluble alloy into the metal sheet plate to mold a usable alloy sheet which is melted in the mold, A hot-forming step of filling the melted melted alloy material in a mold of the melted melted alloy material to form a sheet of the melted melted alloy sheet; And
    A fuse molded body formed by cutting and dividing a metal sheet plate with reference to the above-described fusible alloy sheet to form a fusible alloy sheet formed by hot melting in a mold between a pair of metal sheet terminals formed by dividing a metal sheet plate And a step of dividing the heat-insulating sheet into a plurality of thermal fuses.
  7. The method as claimed in claim 6, wherein the upper base film is laminated on the upper surface of the metal sheet plate after the hot forming step, and the lower base film and the upper base film are laminated on the lower surface and the upper surface of the metal sheet, Wherein the thermal fuse is a sheet-type thermal fuse.
  8. 7. The method of claim 6, further comprising: forming a fuse-shaped body having a flow space portion in the fusible alloy sheet so as to penetrate the flow space portion in the lower base film and the upper base film,
    And a sealing film layer portion is formed by laminating a lower sealing film and an upper sealing film on a bottom surface and an upper surface of the fuse-molded body having the flow space portion formed therein so that the flow space portion is closed by the sealing film layer portion. Gt;
  9. The fuse-molded article according to claim 6, wherein one or more flow space portions are formed on the inner side of the metal sheet plate to which the lower base film and the upper base film are bonded in the split cutting process and the flow space portion is formed on the side of the fusible alloy sheet Lt; / RTI >
    The lower sealing film and the upper sealing film are laminated on the bottom surface and the upper surface of the fuse formed body in which the flow space part is formed to form the sealing film layer part so that the flow space part formed on the side of the fusible alloy sheet is sealed by the sealing film layer part Wherein the thermal fuse is formed of a thermosetting resin.
  10. The method according to claim 9, wherein the flow space portion is filled with a flux for increasing the fluidity of the molten soluble alloy sheet.
KR1020170046613A 2017-04-11 2017-04-11 Manufacturing method of sheet-type thermal fuse KR101954884B1 (en)

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KR1020170046613A KR101954884B1 (en) 2017-04-11 2017-04-11 Manufacturing method of sheet-type thermal fuse

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KR101954884B1 true KR101954884B1 (en) 2019-03-06

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000200529A (en) * 1999-01-07 2000-07-18 Nec Kansai Ltd Protection element and its manufacture
JP2013182750A (en) * 2012-03-01 2013-09-12 Panasonic Corp Temperature fuse and manufacturing method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3478785B2 (en) 2000-07-21 2003-12-15 松下電器産業株式会社 Thermal fuse and battery pack
JP4223316B2 (en) * 2003-04-03 2009-02-12 内橋エステック株式会社 Secondary battery fuse
KR100540579B1 (en) 2004-07-06 2006-01-11 이종호 Thermal fuse
DE102009040022B3 (en) 2009-09-03 2011-03-24 Beru Ag Method for forming a fuse and circuit board with fuse

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000200529A (en) * 1999-01-07 2000-07-18 Nec Kansai Ltd Protection element and its manufacture
JP2013182750A (en) * 2012-03-01 2013-09-12 Panasonic Corp Temperature fuse and manufacturing method thereof

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