WO2014171516A1 - Protective device - Google Patents
Protective device Download PDFInfo
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- WO2014171516A1 WO2014171516A1 PCT/JP2014/060951 JP2014060951W WO2014171516A1 WO 2014171516 A1 WO2014171516 A1 WO 2014171516A1 JP 2014060951 W JP2014060951 W JP 2014060951W WO 2014171516 A1 WO2014171516 A1 WO 2014171516A1
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- terminal
- arm
- resin
- resin base
- protective device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/64—Contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/34—Means for transmitting heat thereto, e.g. capsule remote from contact member
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H37/5427—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting encapsulated in sealed miniaturised housing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H2037/5463—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting the bimetallic snap element forming part of switched circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H2037/5481—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting the bimetallic snap element being mounted on the contact spring
Definitions
- the PTC element either a ceramic PTC element or a polymer PTC element may be used, but a polymer PTC element is preferably used.
- the polymer PTC element is advantageous in that the resistance value of the element itself is lower than that of the ceramic PTC element and self-destruction is unlikely to occur even when the temperature exceeds a certain level.
- the polymer PTC element has a lower voltage required to maintain the trip state than the ceramic PTC element, and can maintain the trip state even when the circuit voltage is low.
- the contact can be maintained in an open state (latched state) and chattering phenomenon that repeatedly opens and closes the contact can be prevented.
- the polymer PTC element is preferable in that it is smaller and has a lower resistance than the ceramic PTC element.
- the arm portion 28 extends outward through the side surface of the resin housing 8.
- the arm portion 28 is a portion for electrically connecting the protection element 1A of the present invention to a predetermined electric element, and performs the same function as the terminal.
- a contact 58 may be provided on a portion 28 of the arm.
- the PTC element 14 the second terminal 16
- the insulating layer 18 the bimetal element 20
- the arm 22 the upper plate 30, and the resin cover 6 are three-terminal type.
- the configuration is substantially the same as the protection device 1A.
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermally Actuated Switches (AREA)
Abstract
Description
樹脂ベースおよび樹脂カバーにより規定される樹脂ハウジング内に、第1ターミナル、PTC素子、第2ターミナル、絶縁層、バイメタル素子、アームおよび上方プレートが、この順に重ねられており、
第1ターミナルおよびターミナル機能を有するアームが直列に配置されて主回路を構成し、
第1ターミナル、PTC素子および第2ターミナルが電気的に直列に接続されて副回路を構成し、
平常時には、主回路は、第1ターミナルとアームとが、双方の接点部を介して電気的に直列に接続された状態にあり、一方、副回路には電流が流れず、
異常時には、副回路に通電されると、この電流によりPTC素子が発熱し、この熱によりバイメタル素子が作動して、第1ターミナルおよびアームの電気的接続が遮断されて、主回路がオープンになるように構成されていることを特徴とする保護装置が提供される。 According to a first aspect of the present invention, there is provided a protective device comprising a resin base, a first terminal, a second terminal, a PTC element, an insulating layer, a bimetal element, an arm, an upper plate, and a resin cover,
In the resin housing defined by the resin base and the resin cover, the first terminal, the PTC element, the second terminal, the insulating layer, the bimetal element, the arm and the upper plate are stacked in this order,
A first terminal and an arm having a terminal function are arranged in series to constitute a main circuit,
The first terminal, the PTC element, and the second terminal are electrically connected in series to form a sub circuit,
In normal times, the main circuit is in a state where the first terminal and the arm are electrically connected in series via both contact points, while no current flows in the sub circuit,
In an abnormal state, when the subcircuit is energized, the PTC element generates heat due to this current, the bimetal element is activated by this heat, the electrical connection between the first terminal and the arm is cut off, and the main circuit is opened. A protection device is provided that is configured as described above.
(1)樹脂ベースおよび樹脂カバーにより規定される樹脂ハウジング内に、第1ターミナル、PTC素子、第2ターミナル、絶縁層、バイメタル素子、アームおよび上方プレートが、この順に重ねられており、
(2)第1ターミナルおよびターミナル機能を有するアームが直列に配置されて主回路を構成し、
(3)第1ターミナル、PTC素子および第2ターミナルが電気的に直列に接続されて副回路を構成し、
(4)平常時には、主回路は、第1ターミナルとアームとが、双方の接点部を介して電気的に直列に接続された状態にあり、異常時には、副回路に通電が開始され、この電流によりPTC素子が発熱し、この熱によりバイメタル素子が作動して、第1ターミナルおよびアームの電気的接続が遮断されて、主回路がオープンになるように構成されており、
(5)第1ターミナルおよびアームの接点部の少なくとも一方が、接点材を第1ターミナルおよび/またはアームにかしめることにより形成され、
(6)樹脂ベースが、インサート成形により第1ターミナルと一体に形成されており、
(7)第1ターミナルの少なくとも一部がリブを有し、
(8)樹脂ベースが高い流動性を有する樹脂から形成され、
(9)上方プレートが鉤状の係止部を有し、この係止部を樹脂ベースの切欠形状の被係止部に係合させることにより樹脂ベースに固定されており、
(10)アームが、樹脂ベースの空間内において、クランク形状を有し、
(11)アームの固定部がクランク形状を有し、このクランクのステップ部の両端部に嵌合部を有し、この嵌合部を樹脂ベースの被嵌合部に嵌合させることによりアームが固定されており、
(12)バイメタル素子がその中央部付近に突起を有する
ことを特徴とする。但し、上記特徴(5)~(12)の少なくとも1つを備えればよいが、好ましくは複数、例えば2~5つ、さらに好ましくはすべてを備える。 In a preferred embodiment, the three-terminal protection device of the present invention comprises a resin base, a first terminal, a second terminal, a PTC element, an insulating layer, a bimetal element, an arm, an upper plate, and a resin cover.
(1) A first terminal, a PTC element, a second terminal, an insulating layer, a bimetal element, an arm and an upper plate are stacked in this order in a resin housing defined by a resin base and a resin cover.
(2) The first terminal and the arm having the terminal function are arranged in series to constitute the main circuit,
(3) The first terminal, the PTC element, and the second terminal are electrically connected in series to form a sub circuit,
(4) During normal operation, the main circuit is in a state where the first terminal and the arm are electrically connected in series via both contact portions. When an abnormality occurs, the subcircuit is energized, and this current The PTC element generates heat, the bimetal element is activated by this heat, the electrical connection between the first terminal and the arm is cut off, and the main circuit is opened,
(5) At least one of the contact portions of the first terminal and the arm is formed by caulking the contact material to the first terminal and / or the arm,
(6) The resin base is formed integrally with the first terminal by insert molding,
(7) At least a part of the first terminal has a rib,
(8) The resin base is formed from a resin having high fluidity,
(9) The upper plate has a hook-shaped locking portion, and is fixed to the resin base by engaging the locking portion with the notched locking portion of the resin base.
(10) The arm has a crank shape in the resin-based space,
(11) The fixed portion of the arm has a crank shape, and there are fitting portions at both ends of the step portion of the crank, and the arm is fitted by fitting the fitting portion to the fitted portion of the resin base. Fixed,
(12) The bimetal element has a protrusion near its center. However, at least one of the above features (5) to (12) may be provided, but preferably a plurality, for example, 2 to 5, more preferably all.
(1)樹脂ベースおよび樹脂カバーにより規定される樹脂ハウジング内に、第3ターミナル、PTC素子、第2ターミナル、絶縁層、バイメタル素子、アームおよび上方プレートが、この順に重ねられており、
(2)第1ターミナルおよびターミナル機能を有するアームが直列に配置されて主回路を構成し、
(3)第3ターミナル、PTC素子および第2ターミナルが電気的に直列に接続されて副回路を構成し、
(4)平常時には、主回路は、第1ターミナルとアームとが、双方の接点部を介して電気的に直列に接続された状態にあり、異常時には、副回路に通電が開始され、この電流によりPTC素子が発熱し、この熱によりバイメタル素子が作動して、第1ターミナルおよびアームの電気的接続が遮断されて、主回路がオープンになるように構成されており、
(5)第1ターミナルおよびアームの接点部の少なくとも一方が、接点材を第1ターミナルおよび/またはアームにかしめることにより形成され、
(6)樹脂ベースが、インサート成形により第1ターミナルおよび第3ターミナルと一体に形成されており、
(7)第1ターミナルおよび/または第3ターミナルの少なくとも一部がリブを有し、
(8)樹脂ベースが高い流動性を有する樹脂から形成され、
(9)上方プレートが鉤状の係止部を有し、この係止部を樹脂ベースの切欠形状の被係止部に係合させることにより樹脂ベースに固定されており、
(10)アームが、樹脂ベースの空間内において、クランク形状を有し、
(11)アームの固定部がクランク形状を有し、このクランクのステップ部の両端部に嵌合部を有し、この嵌合部を樹脂ベースの被嵌合部に嵌合させることによりアームが固定されており、
(12)バイメタル素子がその中央部付近に突起を有する
ことを特徴とする。但し、上記特徴(5)~(12)の少なくとも1つを備えればよいが、好ましくは複数、例えば2~5つ、さらに好ましくはすべてを備える。 In a preferred embodiment, the four-terminal protection device of the present invention includes a resin base, a first terminal, a second terminal, a third terminal, a PTC element, an insulating layer, a bimetal element, an arm, an upper plate, and a resin cover. Consisting of
(1) A third terminal, a PTC element, a second terminal, an insulating layer, a bimetal element, an arm and an upper plate are stacked in this order in a resin housing defined by the resin base and the resin cover.
(2) The first terminal and the arm having the terminal function are arranged in series to constitute the main circuit,
(3) The third terminal, the PTC element, and the second terminal are electrically connected in series to form a sub circuit,
(4) During normal operation, the main circuit is in a state where the first terminal and the arm are electrically connected in series via both contact portions. When an abnormality occurs, the subcircuit is energized, and this current The PTC element generates heat, the bimetal element is activated by this heat, the electrical connection between the first terminal and the arm is cut off, and the main circuit is opened,
(5) At least one of the contact portions of the first terminal and the arm is formed by caulking the contact material to the first terminal and / or the arm,
(6) The resin base is formed integrally with the first terminal and the third terminal by insert molding,
(7) At least a part of the first terminal and / or the third terminal has a rib,
(8) The resin base is formed from a resin having high fluidity,
(9) The upper plate has a hook-shaped locking portion, and is fixed to the resin base by engaging the locking portion with the notched locking portion of the resin base.
(10) The arm has a crank shape in the resin-based space,
(11) The fixed portion of the arm has a crank shape, and there are fitting portions at both ends of the step portion of the crank, and the arm is fitted by fitting the fitting portion to the fitted portion of the resin base. Fixed,
(12) The bimetal element has a protrusion near its center. However, at least one of the above features (5) to (12) may be provided, but preferably a plurality, for example, 2 to 5, more preferably all.
6…樹脂カバー;7,7’…樹脂カバーの一部;8…樹脂ハウジング;
10…空間;12…露出部分;14…PTC素子;16…第2ターミナル;
18…絶縁層;20…バイメタル素子;22…アーム;
24…第1ターミナルの一部;26…第2ターミナルの一部;
28…アームの一部;30…上方プレート;32…第1ターミナルの接点部;
34…アームの接点部;36…接点;38…第1ターミナルの部分;
40…接点;42…段差部;44…凸部;46…固定部;48…ステップ部;
50…嵌合部;52…被嵌合部;54,56…凸部;58…接点;
60…係止部;62…被係止部;64…第3ターミナル;66…露出部分;
68…第3ターミナルの一部;70…接点;72…リブ DESCRIPTION OF
6 ... Resin cover; 7, 7 '... Part of resin cover; 8 ... Resin housing;
DESCRIPTION OF
18 ... Insulating layer; 20 ... Bimetal element; 22 ... Arm;
24 ... part of the first terminal; 26 ... part of the second terminal;
28 ... a part of the arm; 30 ... an upper plate; 32 ... a contact part of the first terminal;
34 ... arm contact; 36 ... contact; 38 ... part of the first terminal;
40 ... Contact; 42 ... Step part; 44 ... Convex part; 46 ... Fixed part; 48 ... Step part;
50 ... fitting part; 52 ... mated part; 54, 56 ... convex part; 58 ... contact point;
60 ... locking part; 62 ... locked part; 64 ... third terminal; 66 ... exposed part;
68 ... Part of the third terminal; 70 ... Contact; 72 ... Rib
Claims (16)
- 樹脂ベース、第1ターミナル、第2ターミナル、PTC素子、絶縁層、バイメタル素子、アーム、上方プレートおよび樹脂カバーを有して成る保護装置であって、
樹脂ベースおよび樹脂カバーにより規定される樹脂ハウジング内に、第1ターミナル、PTC素子、第2ターミナル、絶縁層、バイメタル素子、アームおよび上方プレートが、この順に重ねられており、
第1ターミナルおよびターミナル機能を有するアームが直列に配置されて主回路を構成し、
第1ターミナル、PTC素子および第2ターミナルが電気的に直列に接続されて副回路を構成し、
平常時には、主回路は、第1ターミナルとアームとが、双方の接点部を介して電気的に直列に接続された状態にあり、一方、副回路には電流が流れず、
異常時には、副回路に通電されると、この電流によりPTC素子が発熱し、この熱によりバイメタル素子が作動して、第1ターミナルおよびアームの電気的接続が遮断されて、主回路がオープンになるように構成されていることを特徴とする保護装置。 A protective device comprising a resin base, a first terminal, a second terminal, a PTC element, an insulating layer, a bimetal element, an arm, an upper plate and a resin cover,
In the resin housing defined by the resin base and the resin cover, the first terminal, the PTC element, the second terminal, the insulating layer, the bimetal element, the arm and the upper plate are stacked in this order,
A first terminal and an arm having a terminal function are arranged in series to constitute a main circuit,
The first terminal, the PTC element, and the second terminal are electrically connected in series to form a sub circuit,
In normal times, the main circuit is in a state where the first terminal and the arm are electrically connected in series via both contact points, while no current flows in the sub circuit,
In an abnormal state, when the subcircuit is energized, the PTC element generates heat due to this current, the bimetal element is activated by this heat, the electrical connection between the first terminal and the arm is cut off, and the main circuit is opened. It is comprised so that the protective device characterized by the above-mentioned. - さらに第3ターミナルを有して成り、
第1ターミナルに代えて第3ターミナルが副回路を構成し、
樹脂ベースおよび樹脂カバーにより規定される樹脂ハウジング内において、第3ターミナル、PTC素子、第2ターミナル、絶縁層、バイメタル素子、アームおよび上方プレートが、この順に重ねられていることを特徴とする、請求項1に記載の保護装置。 And having a third terminal,
In place of the first terminal, the third terminal constitutes a subcircuit,
In the resin housing defined by the resin base and the resin cover, the third terminal, the PTC element, the second terminal, the insulating layer, the bimetal element, the arm and the upper plate are stacked in this order. Item 2. The protective device according to Item 1. - 第1ターミナルおよびアームの接点部のいずれか一方が、接点材を第1ターミナルおよび/またはアームにかしめることにより形成されている、請求項1または2に記載の保護装置。 The protective device according to claim 1 or 2, wherein either one of the contact portion of the first terminal and the arm is formed by caulking the contact material to the first terminal and / or the arm.
- ターミナルおよびアームの両方の接点部が、接点材をターミナルおよびアームにかしめることにより形成されている、請求項1~3のいずれかに記載の保護装置。 4. The protective device according to claim 1, wherein the contact portions of both the terminal and the arm are formed by caulking a contact material to the terminal and the arm.
- 接点材が、銀-ニッケル合金である、請求項1~4のいずれかに記載の保護装置。 The protective device according to any one of claims 1 to 4, wherein the contact material is a silver-nickel alloy.
- 樹脂ベースが、インサート成形により第1ターミナルおよび存在する場合には第3ターミナルと一体に形成されていることを特徴とする、請求項1~5のいずれかに記載の保護装置。 The protective device according to any one of claims 1 to 5, wherein the resin base is formed integrally with the first terminal and, if present, the third terminal by insert molding.
- 第1ターミナルまたは存在する場合には第3ターミナルの少なくとも一部がリブを有する、請求項1~6のいずれかに記載の保護装置。 The protective device according to any one of claims 1 to 6, wherein at least a part of the first terminal or the third terminal, if present, has a rib.
- 樹脂ベースが、流動性が高い樹脂により形成されている、請求項1~7のいずれかに記載の保護装置。 The protective device according to any one of claims 1 to 7, wherein the resin base is formed of a resin having high fluidity.
- 上方プレートが鉤状の係止部を有し、この係止部を樹脂ベースの切欠形状の被係止部に係合させることにより、上方プレートが樹脂ベースに固定されている、請求項1~8のいずれかに記載の保護装置。 The upper plate has a hook-shaped locking portion, and the upper plate is fixed to the resin base by engaging the locking portion with a notched locking portion of the resin base. The protective device according to any one of 8.
- アームが、樹脂ベースの空間内において、クランク形状を有する、請求項1~9のいずれかに記載の保護装置。 The protective device according to any one of claims 1 to 9, wherein the arm has a crank shape in a resin-based space.
- アームの固定部がクランク形状を有し、このステップ部の両端部に嵌合部を有し、この嵌合部を樹脂ベースの被嵌合部に嵌合させることによりアームが固定されている、請求項1~10のいずれかに記載の保護装置。 The fixed part of the arm has a crank shape, and there are fitting parts at both ends of the step part, and the arm is fixed by fitting the fitting part to the fitted part of the resin base. The protective device according to any one of claims 1 to 10.
- バイメタル素子がその中央部付近に突起を有する、請求項1~11のいずれかに記載の保護装置。 The protective device according to any one of claims 1 to 11, wherein the bimetal element has a protrusion near its center.
- 樹脂ベース、第1ターミナル、第2ターミナル、PTC素子、絶縁層、バイメタル素子、アーム、上方プレートおよび樹脂カバーを有して成り、
(1)樹脂ベースおよび樹脂カバーにより規定される樹脂ハウジング内に、第1ターミナル、PTC素子、第2ターミナル、絶縁層、バイメタル素子、アームおよび上方プレートが、この順に重ねられており、
(2)第1ターミナルおよびターミナル機能を有するアームが直列に配置されて主回路を構成し、
(3)第1ターミナル、PTC素子および第2ターミナルが電気的に直列に接続されて副回路を構成し、
(4)平常時には、主回路は、第1ターミナルとアームとが、双方の接点部を介して電気的に直列に接続された状態にあり、異常時には、副回路に通電が開始され、この電流によりPTC素子が発熱し、この熱によりバイメタル素子が作動して、第1ターミナルおよびアームの電気的接続が遮断されて、主回路がオープンになるように構成されており、
(5)第1ターミナルおよびアームの接点部の少なくとも一方が、接点材を第1ターミナルおよび/またはアームにかしめることにより形成され、
(6)樹脂ベースが、インサート成形により第1ターミナルと一体に形成されており、
(7)第1ターミナルの少なくとも一部がリブを有し、
(8)樹脂ベースが高い流動性を有する樹脂から形成され、
(9)上方プレートが鉤状の係止部を有し、この係止部を樹脂ベースの切欠形状の被係止部に係合させることにより樹脂ベースに固定されており、
(10)アームが、樹脂ベースの空間内において、クランク形状を有し、
(11)アームの固定部がクランク形状を有し、このクランクのステップ部の両端部に嵌合部を有し、この嵌合部を樹脂ベースの被嵌合部に嵌合させることによりアームが固定されており、
(12)バイメタル素子がその中央部付近に突起を有する
ことを特徴とする、保護装置。 It has a resin base, a first terminal, a second terminal, a PTC element, an insulating layer, a bimetal element, an arm, an upper plate, and a resin cover.
(1) A first terminal, a PTC element, a second terminal, an insulating layer, a bimetal element, an arm and an upper plate are stacked in this order in a resin housing defined by a resin base and a resin cover.
(2) The first terminal and the arm having the terminal function are arranged in series to constitute the main circuit,
(3) The first terminal, the PTC element, and the second terminal are electrically connected in series to form a sub circuit,
(4) During normal operation, the main circuit is in a state where the first terminal and the arm are electrically connected in series via both contact portions. When an abnormality occurs, the subcircuit is energized, and this current The PTC element generates heat, the bimetal element is activated by this heat, the electrical connection between the first terminal and the arm is cut off, and the main circuit is opened,
(5) At least one of the contact portions of the first terminal and the arm is formed by caulking the contact material to the first terminal and / or the arm,
(6) The resin base is formed integrally with the first terminal by insert molding,
(7) At least a part of the first terminal has a rib,
(8) The resin base is formed from a resin having high fluidity,
(9) The upper plate has a hook-shaped locking portion, and is fixed to the resin base by engaging the locking portion with the notched locking portion of the resin base.
(10) The arm has a crank shape in the resin-based space,
(11) The fixed portion of the arm has a crank shape, and there are fitting portions at both ends of the step portion of the crank, and the arm is fitted by fitting the fitting portion to the fitted portion of the resin base. Fixed,
(12) The protective device, wherein the bimetal element has a protrusion near the center. - 樹脂ベース、第1ターミナル、第2ターミナル、第3ターミナル、PTC素子、絶縁層、バイメタル素子、アーム、上方プレートおよび樹脂カバーを有して成り、
(1)樹脂ベースおよび樹脂カバーにより規定される樹脂ハウジング内に、第3ターミナル、PTC素子、第2ターミナル、絶縁層、バイメタル素子、アームおよび上方プレートが、この順に重ねられており、
(2)第1ターミナルおよびターミナル機能を有するアームが直列に配置されて主回路を構成し、
(3)第3ターミナル、PTC素子および第2ターミナルが電気的に直列に接続されて副回路を構成し、
(4)平常時には、主回路は、第1ターミナルとアームとが、双方の接点部を介して電気的に直列に接続された状態にあり、異常時には、副回路に通電が開始され、この電流によりPTC素子が発熱し、この熱によりバイメタル素子が作動して、第1ターミナルおよびアームの電気的接続が遮断されて、主回路がオープンになるように構成されており、
(5)第1ターミナルおよびアームの接点部の少なくとも一方が、接点材を第1ターミナルおよび/またはアームにかしめることにより形成され、
(6)樹脂ベースが、インサート成形により第1ターミナルおよび第3ターミナルと一体に形成されており、
(7)第1ターミナルおよび/または第3ターミナルの少なくとも一部がリブを有し、
(8)樹脂ベースが高い流動性を有する樹脂から形成され、
(9)上方プレートが鉤状の係止部を有し、この係止部を樹脂ベースの切欠形状の被係止部に係合させることにより樹脂ベースに固定されており、
(10)アームが、樹脂ベースの空間内において、クランク形状を有し、
(11)アームの固定部がクランク形状を有し、このクランクのステップ部の両端部に嵌合部を有し、この嵌合部を樹脂ベースの被嵌合部に嵌合させることによりアームが固定されており、
(12)バイメタル素子がその中央部付近に突起を有する
ことを特徴とする、保護装置。 Comprising a resin base, a first terminal, a second terminal, a third terminal, a PTC element, an insulating layer, a bimetal element, an arm, an upper plate and a resin cover;
(1) A third terminal, a PTC element, a second terminal, an insulating layer, a bimetal element, an arm and an upper plate are stacked in this order in a resin housing defined by the resin base and the resin cover.
(2) The first terminal and the arm having the terminal function are arranged in series to constitute the main circuit,
(3) The third terminal, the PTC element, and the second terminal are electrically connected in series to form a sub circuit,
(4) During normal operation, the main circuit is in a state where the first terminal and the arm are electrically connected in series via both contact portions. When an abnormality occurs, the subcircuit is energized, and this current The PTC element generates heat, the bimetal element is activated by this heat, the electrical connection between the first terminal and the arm is cut off, and the main circuit is opened,
(5) At least one of the contact portions of the first terminal and the arm is formed by caulking the contact material to the first terminal and / or the arm,
(6) The resin base is formed integrally with the first terminal and the third terminal by insert molding,
(7) At least a part of the first terminal and / or the third terminal has a rib,
(8) The resin base is formed from a resin having high fluidity,
(9) The upper plate has a hook-shaped locking portion, and is fixed to the resin base by engaging the locking portion with the notched locking portion of the resin base.
(10) The arm has a crank shape in the resin-based space,
(11) The fixed portion of the arm has a crank shape, and there are fitting portions at both ends of the step portion of the crank, and the arm is fitted by fitting the fitting portion to the fitted portion of the resin base. Fixed,
(12) The protective device, wherein the bimetal element has a protrusion near the center. - 上面プレートが樹脂カバーの上部から露出していることを特徴とする、請求項1~14のいずれかに記載の保護装置。 15. The protective device according to claim 1, wherein the top plate is exposed from an upper portion of the resin cover.
- 縦5.0mm以下、横3.0mm以下、高さ0.9mm以下のサイズである、請求項1~15のいずれかに記載の保護装置。 The protective device according to any one of claims 1 to 15, which has a size of 5.0 mm or less in length, 3.0 mm or less in width, and 0.9 mm or less in height.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2015512525A JP6195910B2 (en) | 2013-04-19 | 2014-04-17 | Protective device |
KR1020157032560A KR20160002919A (en) | 2013-04-19 | 2014-04-17 | Protective device |
CN201480034099.5A CN105308709B (en) | 2013-04-19 | 2014-04-17 | Protection device |
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JP2013-088679 | 2013-04-19 | ||
JP2013088679 | 2013-04-19 |
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PCT/JP2014/060951 WO2014171516A1 (en) | 2013-04-19 | 2014-04-17 | Protective device |
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JP (1) | JP6195910B2 (en) |
KR (1) | KR20160002919A (en) |
CN (1) | CN105308709B (en) |
WO (1) | WO2014171516A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105529213A (en) * | 2016-01-28 | 2016-04-27 | 苏州工业园区凯恩电子科技有限公司 | Combined temperature controller |
CN109649303A (en) * | 2017-10-12 | 2019-04-19 | 阿尔卑斯阿尔派株式会社 | Rotary connector with PTC element |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102176851B1 (en) | 2016-12-28 | 2020-11-10 | 주식회사 엘지화학 | Reusable fuse |
JP6967878B2 (en) * | 2017-06-01 | 2021-11-17 | ボーンズ株式会社 | A breaker and a safety circuit equipped with it. |
JP7017922B2 (en) * | 2017-12-21 | 2022-02-09 | ボーンズ株式会社 | Breaker and safety circuit with it |
DE102019125452B4 (en) * | 2019-09-20 | 2021-04-22 | Marcel P. HOFSAESS | Temperature dependent switch |
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JP2001006510A (en) * | 1999-06-25 | 2001-01-12 | Uchiya Thermostat Kk | Thermo-sensitive breaker and battery pack |
JP2006338927A (en) * | 2005-05-31 | 2006-12-14 | Matsushita Electric Ind Co Ltd | Heat sensitive protective switch device and battery pack |
JP2012174615A (en) * | 2011-02-24 | 2012-09-10 | Komatsulite Mfg Co Ltd | Thermal protector |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2005108585A (en) * | 2003-09-30 | 2005-04-21 | Alps Electric Co Ltd | Thermally-actuated switch |
JP4170232B2 (en) | 2004-01-16 | 2008-10-22 | 株式会社小松ライト製作所 | Safety device using bimetal |
JP4884694B2 (en) * | 2005-04-20 | 2012-02-29 | パナソニック株式会社 | Secondary battery protection circuit and battery pack |
-
2014
- 2014-04-17 JP JP2015512525A patent/JP6195910B2/en active Active
- 2014-04-17 KR KR1020157032560A patent/KR20160002919A/en not_active Application Discontinuation
- 2014-04-17 WO PCT/JP2014/060951 patent/WO2014171516A1/en active Application Filing
- 2014-04-17 CN CN201480034099.5A patent/CN105308709B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001006510A (en) * | 1999-06-25 | 2001-01-12 | Uchiya Thermostat Kk | Thermo-sensitive breaker and battery pack |
JP2006338927A (en) * | 2005-05-31 | 2006-12-14 | Matsushita Electric Ind Co Ltd | Heat sensitive protective switch device and battery pack |
JP2012174615A (en) * | 2011-02-24 | 2012-09-10 | Komatsulite Mfg Co Ltd | Thermal protector |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105529213A (en) * | 2016-01-28 | 2016-04-27 | 苏州工业园区凯恩电子科技有限公司 | Combined temperature controller |
CN109649303A (en) * | 2017-10-12 | 2019-04-19 | 阿尔卑斯阿尔派株式会社 | Rotary connector with PTC element |
Also Published As
Publication number | Publication date |
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CN105308709B (en) | 2018-02-09 |
JPWO2014171516A1 (en) | 2017-02-23 |
CN105308709A (en) | 2016-02-03 |
KR20160002919A (en) | 2016-01-08 |
JP6195910B2 (en) | 2017-09-13 |
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