KR20170021403A - Circuit protection device and method of manufacturing the same - Google Patents

Circuit protection device and method of manufacturing the same Download PDF

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Publication number
KR20170021403A
KR20170021403A KR1020150115395A KR20150115395A KR20170021403A KR 20170021403 A KR20170021403 A KR 20170021403A KR 1020150115395 A KR1020150115395 A KR 1020150115395A KR 20150115395 A KR20150115395 A KR 20150115395A KR 20170021403 A KR20170021403 A KR 20170021403A
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South Korea
Prior art keywords
pattern
line
convex patterns
heating element
disposed
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KR1020150115395A
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Korean (ko)
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KR101741563B1 (en
Inventor
강두원
김현창
권혁제
윤생수
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스마트전자 주식회사
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Priority to KR1020150115395A priority Critical patent/KR101741563B1/en
Publication of KR20170021403A publication Critical patent/KR20170021403A/en
Application granted granted Critical
Publication of KR101741563B1 publication Critical patent/KR101741563B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
    • H01H69/02—Manufacture of fuses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective 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
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges

Abstract

A plurality of electrodes disposed on the upper and lower sides of the substrate; a heating element connected to and disposed on the plurality of electrodes disposed on the substrate, the heating element emitting heat according to the intensity of the inter-electrode current; A firing pattern member including first and second convex patterns arranged at both sides of the line-shaped pattern and facing the line-shaped pattern, the first and second convex patterns each having a pointed shape; And a solenoid disposed at a position corresponding to the fusing pattern member by heat generated by the heat generated by the heating element or the overcurrent flowing through the plurality of electrodes, and a method of manufacturing the same. do.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a circuit protection device,

The present invention relates to a circuit protection device and a method of manufacturing the same, and more particularly, to a circuit protection device and a method of manufacturing the circuit protection device capable of securing an insulation distance of a fused material that is melted in an abnormal state.

In recent years, electronic devices such as mobile phones, household appliances, PCs, PDAs, LCDs, and navigators are becoming smaller and more integrated.

Such miniaturized and integrated electronic apparatuses operate at a low voltage, and the ability to withstand an overvoltage applied from the outside, that is, the surge capacity characteristics is degraded, and thus the internal circuit is not protected from the overvoltage and malfunction or breakdown frequently occurs There is a danger to be.

Thus, a circuit protection element is used to protect the internal circuit of the electronic device from an overvoltage, and an example of a circuit protection element is proposed in Japanese Patent Application Laid-Open No. 10-2005-0099523. The circuit protection element includes a fuse for blocking a current on the base substrate having a predetermined size and a heating element for fusing the fuse in an abnormal state in which the current path is to be blocked, . According to such a construction, the heating element is energized in the abnormal state, and the heating element is heated, so that the fuse blows and the current is cut off.

However, since the proposed circuit protection device indirectly heats the fuse by the heat generated by the heating element in an abnormal state and melts the fuse through such indirect heating, the fused fuse is not completely separated and separated A fused residue of the fuse is generated and the current is not cut off, thereby failing to protect the circuit to be protected and the circuit elements provided in the circuit.

KR 10-2005-0099523 A

It is an object of the present invention to provide a melting furnace capable of easily melting a soluble body when the soluble body is fused in an unsteady state and not producing a molten residue separated from the melted material of the fused soluble body, And to provide a circuit protection element and a method of manufacturing the same.

A circuit protection device according to the present invention includes a plurality of electrodes arranged above and below a substrate, a heating element connected to the plurality of electrodes disposed on the substrate and configured to generate heat according to the intensity of the interelectrode current, A firing pattern member disposed on the heating element with an insulating film interposed therebetween, the firing pattern member including first and second convex patterns each having a line-shaped pattern and a pointed shape disposed on both sides of the line-shaped pattern and facing the line- And a soluble body disposed on the frit pattern member and separated and fused to a position corresponding to the frit pattern member by heat generated by the heat generated by the heating element or an overcurrent flowing through the plurality of electrodes.

In addition, the solvable body may include a flux located in the space within the solvable body to increase the contact area with the solvable body.

In addition, the line-shaped pattern may be arranged horizontally in the width direction of the usable body so that the usable body is fused as it is cut in the width direction.

Further, the first and second convex patterns may be symmetrically arranged on both sides of the line-shaped pattern.

The one end portion of each of the first and second convex patterns facing the line-shaped pattern is a portion in which the melted melted material moves in the other end direction of the first and second convex patterns, May be formed in a triangular shape so as to secure a distance.

In addition, the heating element may be two printed resistors spaced from each other that generate heat below the first and second convex patterns.

According to another aspect of the present invention, there is provided a method of fabricating a circuit protection device, comprising: disposing a plurality of electrodes above and below a substrate; placing a heating element on the plurality of electrodes disposed on the substrate, And a step of forming a firing pattern member on both sides of the line-shaped pattern and including first and second convex patterns each having a sharp-pointed shape facing the line-shaped pattern, Arranging a soluble body separated and fused to a position corresponding to the freeness pattern member on the freeness pattern member by heat generated by heat generated by the heating element or overcurrent flowing through the plurality of electrodes, .

When the soluble body is separated and melted, the soluble body on the line-shaped pattern is fused so as to be cut into a straight line, and then the central portion of each convex pattern, which acts on one end of the pointed shape of each of the first and second convex patterns, The melted material of the soluble body melted by the concentrated force moves to the other end direction of the first and second convex patterns, so that the soluble body can be separated and melted.

The step of disposing the freeness pattern member with the insulating film on the heating element may include disposing the line-shaped pattern horizontally in the width direction of the fanning member.

The step of disposing the freeness pattern member on the heating element via the insulating film may include disposing the first and second convex patterns symmetrically on both sides of the line pattern.

According to the circuit protection element and the manufacturing method thereof according to the embodiment of the present invention, since the line-shaped pattern is formed parallel to the width direction of the movable body and having a narrow pattern width, when the soluble body is fused in an abnormal state, Since the soluble body portion on the pattern is melted as if it is cut into a straight line, melting of the soluble body can be facilitated.

Further, according to the circuit protection element and the method of manufacturing the same according to the embodiment of the present invention, by including the first and second convex patterns whose one end has a sharp shape facing the line-shaped pattern, The melted material of the fused solicited body moves in the other end direction of the first and second convex patterns as if the soluble body portion on the line-shaped pattern is cut linearly by the force concentrating on the central portion of the convex pattern. The melted residues separated from the melts are not generated so that the melted melted materials of the melted melted materials can be completely separated and separated to secure the insulation distance of the melted melted material.

According to the circuit protection element and the method of manufacturing the same according to the embodiment of the present invention, the line-shaped pattern formed parallel to the width direction of the usable body and having a narrow pattern width, and the first one having a sharp- And the second convex pattern, it is possible to easily fuse the soluble body, and the molten residue separated from the melt of the fused soluble body is not generated, so that the melted material of the fused soluble body is completely separated and separated , It is possible to secure the insulation distance of the fused solu- tion body, and it is possible to protect circuit elements and the like provided in the circuit to be protected.

Further, according to the circuit protection element and the method of manufacturing the same according to the embodiment of the present invention, by including the heating element including the two resistors spaced apart from each other that generate heat below the first and second convex patterns of the frit pattern member, Since the line-shaped patterns can be arranged on the upper side between the two resistors spaced apart from each other. It is possible to prevent the heat of the resistor from being directly transmitted to the line-shaped pattern having a relatively small width and having a relatively low thermal durability, thereby preventing the line-shaped pattern from melting.

1 is a perspective view showing a circuit protection device according to an embodiment.
2 is an exploded perspective view of FIG.
3 is a cross-sectional view showing a circuit protection element according to an embodiment including a heating element composed of two printed resistive elements.
4 is a view showing an allowable body which is separated and fused to a position corresponding to a fusing pattern member.
5 is a view showing the surface tension generated at one end portion of each of the first and second convex patterns.
Fig. 6 is a view showing the flux located in the space in the solenoid.
7 is a flowchart showing a method of manufacturing a circuit protection device according to an embodiment.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art, and the following embodiments may be modified in various other forms, The present invention is not limited to the following embodiments. Rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the invention to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an," and "the" include plural forms unless the context clearly dictates otherwise. Also, " comprise "and / or" comprising "when used herein should be interpreted as specifying the presence of stated shapes, numbers, steps, operations, elements, elements, and / And does not exclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups. As used herein, the term "and / or" includes any and all combinations of one or more of the listed items.

Although the terms first, second, etc. are used herein to describe various elements, regions and / or regions, it should be understood that these elements, components, regions, layers and / Do. These terms do not imply any particular order, top, bottom, or top row, and are used only to distinguish one member, region, or region from another member, region, or region. Thus, the first member, region or region described below may refer to a second member, region or region without departing from the teachings of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings schematically showing embodiments of the present invention. In the figures, for example, variations in the shape shown may be expected, depending on manufacturing techniques and / or tolerances. Accordingly, embodiments of the present invention should not be construed as limited to any particular shape of the regions illustrated herein, including, for example, variations in shape resulting from manufacturing.

FIG. 1 is a perspective view showing a circuit protection device according to an embodiment, and FIG. 2 is an exploded perspective view of FIG.

1 and 2, the circuit protection device according to the embodiment includes a plurality of electrodes 13 and 15 arranged on and under the substrate 11, a plurality of electrodes (not shown) disposed on the substrate 11, A fusing pattern member 21 disposed on the heating element 17 with an insulating film 19 interposed therebetween and a fusing member 23 disposed on the fusing pattern member 21 ).

The circuit protection device according to this embodiment serves to protect the object to be protected connected to the main circuit by the fusing of the fuse 23 in the abnormal state.

The abnormal state may be a state in which the current path is to be shut off, a surge occurs in the main circuit, an overvoltage that deviates from the reference voltage due to overcharging, or an overcurrent that exceeds the reference current is applied. In addition, heat may be generated in the abnormal state, such as heat generated in the heat generating body 17.

In addition, the main circuit is not limited to a particular type, and may be a charging circuit or the like for charging the battery. The protection target may be a circuit connected to the main circuit, a circuit element provided in the circuit, or the like.

The substrate 11 may be a substrate used for a printed wiring board such as a ceramic substrate or a glass epoxy substrate, a glass substrate, a resin substrate, an insulated metal substrate, or the like, and may be other types of substrates and can be understood by those skilled in the art Detailed description of other examples is omitted.

The plurality of electrodes (13, 15) includes a first electrode (13) connected to the protection object and a second electrode (15) connected to the heating element (17). At this time, the first and second electrodes 13 and 15 are disposed on the upper and lower sides of the substrate 11 and are connected to each other through a through electrode or the like.

Each of the first and second electrodes 13 and 15 disposed on the substrate 11 is composed of two electrodes spaced apart from each other in the surface direction on the substrate 11 arranged. Likewise, the first and second electrodes 13 and 15 disposed under the substrate 11 are each composed of two electrodes spaced apart from each other in the plane direction of the lower side of the substrate 11.

The heating element 17 is disposed on and connected to the second electrode 15 disposed on the substrate 11 and emits heat according to the intensity of the electric current between the connected second electrodes 15.

The heating element 17 may be a single printed resistor, and may be a different type of heating element and can be understood by those skilled in the art, so that detailed description of other examples is omitted.

Further, the heating element 17 may be two printed resistors.

3 is a cross-sectional view showing a circuit protection element according to an embodiment including a heating element composed of two printed resistive elements.

As shown in Fig. 3, the two printed resistors, which are the heating elements 17, are printed apart from each other and connected in parallel with each other. In addition, since the two printed resistors are formed in the form of a thin film, they can be directly printed on the substrate 11 without a lead wire, easy to apply an automated process, can be miniaturized as compared with a surface mount type resistor terminal, The cost can be reduced.

In addition, the two printed resistors generate heat below the first and second convex patterns 213 and 215 of the freeness pattern member 21 described later. That is, the first convex pattern 213 is disposed on one of the two resistive elements and the second convex pattern 215 is disposed on the other.

Here, a line-shaped pattern 211 of a fading pattern member 21 to be described later is disposed on the upper side between the two spaced printed resistive elements. This is because the width of the line-shaped pattern 211 is narrow and the thermal durability is relatively weak, so that it is possible to prevent the line-shaped pattern 211 from melting due to direct heat transfer from the printed resistor.

As shown in Figs. 1 and 2 again, the insulating film 19 is formed on both sides of the insulating film 19 in the direction of the current path between the first electrodes 13, And an outflow preventing film 19a for preventing the melt of the body 23 from flowing out of the device.

The fusing pattern member 21 has a line-shaped pattern 211 arranged horizontally in the width direction of the allowable body 23 and a current between the first electrodes 13 so that the fusible body 23 is fused as it is cut in the width direction. And the first and second convex patterns 213 and 215 which are disposed in the path direction and are spaced apart from each other on both sides of the line shape pattern 211 and whose one end is a pointed shape D facing the line shape pattern 211.

Here, the first and second convex patterns 213 and 215 may be symmetrically arranged on both sides of the line-shaped pattern 211, respectively. One end portion of each of the first and second convex patterns 213 and 215 facing the line-shaped pattern 211 is located in the other end direction of the first and second convex patterns 213 and 215, And can be formed in a triangular shape such that the both ends of the pointed end and the pointed end are formed in a straight line so as to secure the insulation distance of the fused solenoid body 23. In addition, the pointed end and both ends of the pointed end But may be formed in another shape having a straight line shape.

Fig. 4 is a view showing a fusible body separated and fused to a position corresponding to a fusing pattern member, and Fig. 5 is a view showing surface tensions generated at one end of each of the first and second convex patterns.

4 and 5, the circuit protection device according to the embodiment includes a line-shaped pattern 211 formed with a narrow pattern width and a first line-shaped pattern D having a pointed shape D facing the line- And the second convex patterns 213 and 215 so that the soluble body 23 is substantially completely separated into two halves at positions corresponding to the freeness pattern member 21 and the soluble body 23 is fused in an abnormal state The molten material of the soluble body 23 which is easily melted and fused in the soluble body 23 is melted from the line pattern 211 into the first and second convex patterns 213 and 215, Since the molten residue separated from the melt is not generated and the melted material of the melted soluble material 23 is completely separated and separated, it is possible to secure the insulation distance of the melted soluble material, and circuit elements and the like Lt; / RTI >

That is, as shown in Fig. 4A, the fusing member 23 is disposed on the fusing pattern member 21. [ In this state, as shown in FIG. 4B, the pattern of the line-shaped pattern 211, which is a portion where the pattern width is narrow and the heat generated by the heat generated by the heating element 17 or the overcurrent flowing through the first electrode 13 is concentrated, The portion of the soluble body 23 is melted as if it is first cut into a straight line.

As shown in FIG. 5, the first and second convex patterns 213 and 215, which are separated from each other on both sides of the line pattern 211, have a pointed shape D And the both sides of the pointed shape D are formed in a straight line so that the surface tension K of the one end portion is concentrated on the central portion of each convex pattern. Therefore, the convex pattern of the rounded shape or semicircular shape The power of concentration increases.

As a result, as shown in FIG. 4C, as each of the melts of the fused solenoid 23 becomes concentrated on the central portion of each of the convex patterns, the first and second convex patterns 211, The spacing distance between the melted materials of the fusible solubles 23 is increased and the distance between the fusible elements 23 and the fusible element 23 is increased, The distance G can be secured.

Fig. 6 is a view showing the flux located in the space in the solenoid. As shown in Fig. 6, the allowable body 23 includes a flux 231 located in the space in the allowable body 23.

6 (a), the solder wire P may be rolled to form a square shape as shown in FIG. 6 (b), and a flux 231 are disposed.

The flux 231 prevents the surface of the solenoid 23 from being oxidized and melts together with the solenoid 23 when the heat is generated in the abnormal state such as the heat of the heat generator 17 to coagulate the solenoid 23 It plays a role. The flux 231 may be formed of a chloride, a fluoride, or the like.

As described above, when the flux 231 is located in the space inside the movable body 23, the flux 231 is applied on the surface of the movable body 23 by contacting the flux 231 with the four faces of the movable body 23 The fidelity of the role of the flux 231 is increased because the area of contact with the fusible body 23 is larger.

The surface metal of the solubilizing body 23 may be composed of lead (Pb), tin (Sn) and silver (Ag) alloy, or may be a surface metal of other kinds of soluble materials. Other examples will not be described.

The fusible element 23 is disposed in parallel with the current path between the current path between the heating element 17 and the second electrode 15 connected thereto and the first electrode 13 perpendicular to the heating path.

In addition, the fusible element 23 is fused by heat generated in an abnormal state, such as heat emitted from the heating element 17, to cut off the current path between the first electrodes 13. At this time, the fusing body 23 is separated and melted to a position corresponding to the fusing pattern member 21.

As described above, the fusible body 23 is formed in such a manner that the fusible body 23 on the line-shaped pattern 211 is fused first, and then the fusing body 23 is formed in the pointed shape D of each of the first and second convex patterns 213 and 215 Since the melts of the soluble body 23 melted by the surface tension are separated from each other on both sides, the melted soluble bodies 23 are reliably separated from each other.

7 is a flowchart showing a method of manufacturing a circuit protection device according to an embodiment.

Hereinafter, a method of manufacturing the circuit protection device according to the embodiment will be described with reference to FIG. A method of manufacturing a circuit protection device according to an embodiment includes steps that are processed in the above-described circuit protection device. Therefore, the contents described above with respect to the circuit protection element are also applied to the method of manufacturing the circuit protection element according to the embodiment, even if omitted from the following description.

The second electrode 15 is disposed so as to have a current path perpendicular to the current path between the first electrode 13 and the first electrode 13 which are connected to the upper and lower surfaces of the substrate 11 at the step S101, A heat generating element 17 that generates heat in accordance with the intensity of the interelectrode current connected thereto is disposed on the second electrode 15 disposed on the substrate 11 and connected thereto.

The first and second convex patterns 213 and 215 having the line shape pattern 211 and the pointed shape C disposed on both sides of the line shape pattern 211 and facing the line shape pattern 211, Is arranged above the heating element (17) with the insulating film (19) interposed therebetween.

In step S105, an allowable body 23, which is separated and fused to a position corresponding to the freeness pattern member 21 and blocks the current path, is disposed on the freeness pattern member 21. [

Here, when the soluble body 23 is detached in the unsteady state, the soluble body 23 on the line-shaped pattern 211 is fused so as to be linearly cut, and then the first and second convex patterns 213 and 215 The melted material of the soluble body 23 melted by the force concentrated on the center of each convex pattern acting at one end of the pointed shape of the soluble body 23 moves in the other end direction of the first and second convex patterns 213, 23).

As described above, according to the circuit protection element and the method of manufacturing the same according to the embodiment of the present invention, a line-shaped pattern formed parallel to the width direction of the movable body and having a narrow pattern width and a shape having one end facing the line- By including the firing pattern member having the first and second convex patterns, it is possible to easily fuse the soluble body and to prevent the melting residue of the fused soluble body from being separated from the melt of the fused soluble body, Therefore, it is possible to secure the insulation distance of the fused solu- tion body, and it is possible to protect circuit elements and the like provided in the circuit to be protected.

Although the embodiments of the circuit protection device and the method of manufacturing the same according to the embodiments of the present invention have been described above, various modifications may be made without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

It is to be understood that the foregoing embodiments are illustrative and not restrictive in all respects and that the scope of the present invention is indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

11: substrate 13: first electrode
15: second electrode 17: heating element
19: insulating film 21: fusing pattern member
23: Solvent 211: Line shape pattern
213: first convex pattern 215: second convex pattern

Claims (12)

A plurality of electrodes disposed above and below the substrate;
A heating element connected to and disposed on a plurality of electrodes disposed on the substrate, the heating element emitting heat according to the intensity of the inter-electrode current;
A firing pattern member disposed on the heating element with an insulating film interposed therebetween, the firing pattern member including first and second convex patterns each having a line-shaped pattern and a pointed shape disposed on both sides of the line-shaped pattern and facing the line-shaped pattern; And
A solenoid disposed on the frit pattern member and separated and fused to a position corresponding to the frit pattern member by heat generated by the heat generated by the heating element or an overcurrent flowing through the plurality of electrodes;
And the circuit protection element. The method according to claim 1,
In the above-described solvable body,
And a flux located in a space in the movable body to increase a contact area with the movable body. The method according to claim 1,
The line-
Wherein the flexible circuit is arranged horizontally in the width direction of the movable body so that the flexible body is fused so as to be cut in the width direction. The method according to claim 1,
And the first and second convex patterns are symmetrically arranged on both sides of the line-shaped pattern, respectively. The method according to claim 1,
Wherein one end portion of each of the first and second convex patterns facing the line-
Wherein the melted material of the melted soluble body moves in the other end direction of the first and second convex patterns to secure an insulation distance of the melted soluble body. The method according to claim 1,
The heating element
Wherein the first and second convex patterns are two printed resistors spaced apart from each other and generating heat below the first and second convex patterns. Disposing a plurality of electrodes above and below the substrate;
Arranging and connecting a heat generating element that generates heat according to the intensity of the interelectrode current connected to the plurality of electrodes disposed on the substrate;
Disposing a firing pattern member disposed on both sides of the line-shaped pattern and on both sides of the line-shaped pattern, the firing pattern member including first and second convex patterns each having a pointed shape facing the line-shaped pattern via an insulating film; And
Disposing a solenoid on the freeness pattern member separated and fused to a position corresponding to the freeness pattern member by heat generated by the heat generated by the heating element or by an overcurrent flowing through the plurality of electrodes; / RTI >
When the soluble body is separated and melted,
Shaped pattern is fused so as to be cut into a straight line and then fused by the force concentrated on the central portion of each convex pattern acting at one end of the pointed shape of each of the first and second convex patterns And the molten material moves in the other end direction of the first and second convex patterns to separate and fuse the usable body. 8. The method of claim 7,
In the above-described solvable body,
And a flux located in a space in the movable member to increase a contact area with the movable member. 8. The method of claim 7,
Wherein the step of disposing the freeness pattern member on the heating element via the insulating film includes disposing the line pattern horizontally in the width direction of the firing member. 8. The method of claim 7,
The step of disposing the freeness pattern member on the heating element with the insulating film interposed includes the step of arranging the first and second convex patterns symmetrically on both sides of the line pattern. 8. The method of claim 7,
Wherein one end portion of each of the first and second convex patterns facing the line-
And the melted material of the melted solder moves in the other end direction of the first and second convex patterns to secure an insulation distance of the melted solder. 8. The method of claim 7,
The heating element
Wherein the first and second convex patterns are two printed resistive elements spaced from each other that generate heat below the first and second convex patterns.
KR1020150115395A 2015-08-17 2015-08-17 Circuit protection device and method of manufacturing the same KR101741563B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102227864B1 (en) * 2020-11-27 2021-03-15 주식회사 인세코 Protection element for secondary battery and battery pack including that

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050099523A (en) 2003-02-05 2005-10-13 소니 케미카루 가부시키가이샤 Protection element

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050099523A (en) 2003-02-05 2005-10-13 소니 케미카루 가부시키가이샤 Protection element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102227864B1 (en) * 2020-11-27 2021-03-15 주식회사 인세코 Protection element for secondary battery and battery pack including that
WO2022114537A1 (en) * 2020-11-27 2022-06-02 주식회사 인세코 Protective element for secondary battery and battery pack comprising same

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