WO2013085265A1 - 대전류용 반복형 퓨즈 - Google Patents

대전류용 반복형 퓨즈 Download PDF

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Publication number
WO2013085265A1
WO2013085265A1 PCT/KR2012/010453 KR2012010453W WO2013085265A1 WO 2013085265 A1 WO2013085265 A1 WO 2013085265A1 KR 2012010453 W KR2012010453 W KR 2012010453W WO 2013085265 A1 WO2013085265 A1 WO 2013085265A1
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WO
WIPO (PCT)
Prior art keywords
lead terminal
plate
main spring
spring
housing
Prior art date
Application number
PCT/KR2012/010453
Other languages
English (en)
French (fr)
Korean (ko)
Inventor
김덕희
박하영
Original Assignee
(주)엠에스테크비젼
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)엠에스테크비젼 filed Critical (주)엠에스테크비젼
Priority to CN201280060365.2A priority Critical patent/CN103975410A/zh
Priority to JP2014540974A priority patent/JP2014533423A/ja
Publication of WO2013085265A1 publication Critical patent/WO2013085265A1/ko

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Classifications

    • 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
    • H01H85/36—Means for applying mechanical tension to fusible member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
    • H01C1/1406—Terminals or electrodes formed on resistive elements having positive temperature coefficient
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • 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
    • H01H37/764—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material in which contacts are held closed by a thermal pellet
    • H01H37/765—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material in which contacts are held closed by a thermal pellet using a sliding contact between a metallic cylindrical housing and a central electrode

Definitions

  • the present invention relates to a large current repetitive fuse having a positive temperature coefficient thermistor, and more particularly, the electrical resistance of the static thermistor increases rapidly when an overcurrent is applied or the temperature increases due to an external overheating cause.
  • the power supply can be continuously cut off, and when the overcurrent disappears or the external overheating cause is eliminated, the constant current thermistor cools down and returns to the normal current flow.
  • the elastic member that can be used continuously and surface mount, for example, an elastic member made of a shape memory alloy material to automatically cut off the power and release the power cut state.
  • an elastic member made of a shape memory alloy material to automatically cut off the power and release the power cut state.
  • the repetitive fuse cuts off the power in a situation where the current or voltage is unstable, and repeats the process of automatically releasing the power cut state when the circuit or the like is not sufficiently cooled yet, the repetitive fuse itself may fail.
  • An abnormality such as overheating or a circuit overheating of an electrical and electronic product occurs, which leads to a fire or failure of the electrical and electronic product.
  • the problem to be solved by the present invention is that when the overcurrent is applied or the temperature is increased due to external overheating causes the electrical resistance of the static thermistor is sharply increased and the flow of current continues to be restricted, so that the power supply can be continuously interrupted and the overcurrent disappears.
  • the static thermistor cools down and provides a large current repetitive fuse that returns to normal current flow.
  • the present invention provides a housing having an internal space, a first lead terminal disposed on a side surface of the housing, a second lead terminal spaced apart from the first lead terminal on a side surface of the housing, and inside the housing.
  • a contact operation plate disposed in the housing and electrically shorted to the housing and electrically intermittently interposed with the first lead terminal or the first lead terminal and the second lead terminal;
  • a main spring and a bias spring each of which is an elastic member electrically intermittently interposed between the lead terminal and the contact operation plate or the first lead terminal and the second lead terminal and the contact operation plate;
  • a static thermistor inserted into and electrically connected to the first lead terminal and the second lead terminal, wherein the static thermistor has a specific threshold.
  • the present invention provides a high-current repetitive fuse that is connected to the first lead terminal or the first lead terminal and the second lead terminal so as to move in association with the compression direction.
  • the plate is spaced apart from the first lead terminal or the first lead terminal and the second lead terminal to be electrically shorted with the first lead terminal or the first lead terminal and the second lead terminal, so that the first lead terminal and the If the current flow between the second lead terminals is continuously interrupted, and the overcurrent disappears or the temperature inside the housing is lower than a certain threshold temperature, the static thermistor is cooled and the tension force of the main spring is reduced so that the contact operating plate Is the first lead by the tension of the bias spring Here it is or wherein the first lead terminal and the second receiving the pressing force toward the lead terminal of the first lead terminal or the first lead terminal and the connection to the second lead terminal electrically returns to the normal state.
  • the positive characteristic thermistor is provided between a first electrode electrically connected to the first lead terminal, a second electrode electrically connected to the second lead terminal, and between the first electrode and the second electrode, and has a specific threshold. It may include a positive temperature coefficient device that the electrical resistance is greater than the temperature.
  • the static thermistor has a plate-like structure, the side of the static thermistor may be provided with an insulator for preventing a short between the first electrode and the second electrode.
  • the constant temperature coefficient device may be made of a BaTiO 3 -based ceramic material.
  • the constant temperature coefficient device may be formed of a polymer material formed by dispersing conductive metal particles in a polymer matrix.
  • the large current repetitive fuse may be inserted into the housing and may further include a support block for fixing the contact operation plate, wherein the support block is connected to one end of the contact operation plate to connect the contact operation plate. It is supported and can be made of insulators.
  • the main spring may be made of a shape memory alloy, and the bias spring may be made of a conductive spring, and the main spring is provided when an overcurrent higher than a reference value is applied or the temperature inside the housing is higher than a specific threshold temperature due to an external environment.
  • the tensile force of the bias spring is greater than the tension force of the bias spring, when the overcurrent disappears or the temperature inside the housing is lower than a certain threshold temperature, the tensile force of the main spring is less than the tension force of the bias spring is smaller than the tension force of the bias spring by the contact
  • the operation plate is pressed against the first lead terminal or the first lead terminal and the second lead terminal.
  • a first opening is provided on the first side surface of the housing, and the first lead terminal and the second lead terminal are inserted and positioned through the first opening, and the contact operation plate comprises the first lead terminal and the first lead.
  • the second lead terminal may be electrically interrupted, and the first lead terminal and the second lead terminal may be electrically connected or short-circuited through the contact operation plate.
  • the first lead terminal and the second lead terminal of the portion connected to the contact operation plate may be provided with a contact portion protruding upward, and the connection portion of the contact operation plate, which is a portion connected to the contact portion, is plate-shaped. It may be provided as.
  • the contact operation plate may be connected to the first lead terminal and the second lead terminal, a conductive connection part, a first connection part connected to the connection part, and the first connection part connected to the main spring and the bias spring. It may include a plate-shaped first plate portion that receives a direct force according to the tensile force of the first plate portion is subjected to the force by the stretching movement of the main spring and the bias spring, the first plate portion is interlocked with the force received
  • the connection part may be electrically connected to or short-circuited with the first lead terminal and the second lead terminal.
  • the main spring and the bias spring are arranged to extend or compress in a direction parallel to the direction in which the connecting portion moves, the main spring is disposed between the static thermistor and the first plate portion, the bias spring is the first spring It may be disposed between the first plate portion and the inner wall of the housing which is opposite to the main spring is disposed on the plate portion.
  • the main spring and the bias spring are arranged to extend or compress in a direction parallel to the direction in which the connecting portion moves, the connecting portion has a plate-like structure, the main spring is disposed between the static thermistor and the first plate portion
  • the bias spring may be disposed between the connection part opposite to the main spring on which the main spring is disposed and the inner wall of the housing.
  • the contact operation plate may include a conductive connecting portion, which is a portion for connecting with the first lead terminal and the second lead terminal, a first connecting portion connected to the connecting portion, and a tensile force of the main spring connected to the first connecting portion.
  • a plate-shaped first plate portion that receives the direct force
  • a second connection portion that is connected to the first plate portion
  • a plate-shaped second plate portion that is connected to the second connection portion and receives a direct force according to the tension force of the bias spring.
  • the bias spring is disposed between the first plate portion, and the main spring is based on the second connection portion. Disposed between the second plate part and the inner wall of the housing, which is disposed opposite to each other, and the connection part is electrically connected to the first lead terminal and the second lead terminal in response to a force received by the first plate part and the second plate part. Can be connected or shorted.
  • the high current repetitive fuse may further include a trigger terminal inserted into and disposed through a second opening provided in the second side of the housing, and the trigger terminal may be electrically connected to the static thermistor.
  • a first opening is provided on a first side of the housing, a second opening is provided on a second side of the housing, the first lead terminal is inserted through the first opening, and the second opening is positioned.
  • the second lead terminal is inserted and positioned therethrough, and the contact operation plate is provided to be electrically connected to the second lead terminal and is electrically intermittently provided to the first lead terminal.
  • the lead terminal and the second lead terminal may be electrically connected or short-circuited through the contact operation plate.
  • the first lead terminal of the portion connected to the contact operation plate may be provided with a contact portion protruding upward, and the connection portion of the contact operation plate, which is a portion connected to the contact portion, may be provided in a plate shape.
  • the first lead terminal of the portion connected to the contact operation plate may be provided with a plurality of contact portions protruding upward, and the connection portion of the contact operation plate, which is a portion connected to the contact portion, may be provided in a plate shape. have.
  • the first lead terminal of the portion connected to the contact operation plate may be provided with a rod-shaped front contact portion protruding upward to increase the contact area, and the contact operation plate is a portion connected to the contact contact portion.
  • the connecting portion of may be provided in a plate shape.
  • the contact operation plate is connected to the first lead terminal, a conductive connection part, the first connection part connected to the connection part and the first connection part connected to the direct force according to the tension force of the main spring and the bias spring It may include a plate-shaped first plate portion, the first plate portion is subjected to the force by the expansion and contraction movement of the main spring and the bias spring, the connection portion is interlocked with the force received by the first plate portion 1 may be electrically connected to the lead terminal or may be short-circuited.
  • the main spring and the bias spring are arranged to extend or compress in a direction parallel to the direction in which the connecting portion moves, the main spring is disposed between the static thermistor and the first plate portion, the bias spring is the first spring It may be disposed between the first plate portion and the inner wall of the housing which is opposite to the main spring is disposed on the plate portion.
  • the main spring and the bias spring are arranged to extend or compress in a direction parallel to the direction in which the connecting portion moves, the connecting portion has a plate-like structure, the main spring is disposed between the static thermistor and the first plate portion
  • the bias spring may be disposed between the connection part opposite to the main spring on which the main spring is disposed and the inner wall of the housing.
  • the contact operation plate may include a conductive connection portion, which is a portion connecting to the first lead terminal, a first connection portion connected to the connection portion, and a first force connected to the first connection portion and subjected to a direct force according to a tensile force of the main spring.
  • the first plate portion is forced by the stretching movement of the main spring
  • the second plate portion is forced by the stretching movement of the bias spring
  • the main spring is the static thermistor and the first plate portion Interposed between the main spring and the bias spring relative to the second connection
  • the second is disposed between the plate portion and the inner wall of the housing, the second is linked to the first plate portion and the second plate portion receiving power may be connected to the additional connection or short circuit in a first lead terminal and electrically.
  • the high current repetitive fuse may further include a trigger terminal inserted into and disposed through a third opening provided in the third side of the housing, and the trigger terminal may be electrically connected to the static thermistor.
  • the static thermistor rises above a certain threshold temperature by self-heating due to overcurrent, the electrical resistance is rapidly increased, and the flow of current is continuously restricted, thereby interrupting power supply. Therefore, it is possible to suppress the occurrence of fire or failure of electrical and electronic products due to overcurrent or overheating of a circuit or the like.
  • the circuit is continuously blocked, so that the load devices (motors, critical ICs, etc.) at the rear end can be much more securely protected from electric shock.
  • the load devices motors, critical ICs, etc.
  • the high-current repetitive fuse of the present invention may further include a trigger terminal, and when a signal voltage (approximately 5V or less) is applied to the trigger terminal, the self-heating of the characteristic thermistor may cause a gap between the first lead terminal and the second lead terminal. Can be electrically shorted, so you can expect some kind of remote control effect.
  • a signal voltage may be applied from a main chip to a trigger terminal to provide a first lead terminal. And by electrically shorting between the second lead terminals, the main chip can control the safety of the integrated device.
  • FIG. 1 is a view schematically showing a large current repetitive fuse according to a first embodiment of the present invention.
  • FIG. 2 is a schematic cross-sectional view of the high-current repetitive fuse of FIG. 1.
  • FIG. 3 is a diagram illustrating a state in which the first lead terminal and the second lead terminal are electrically shorted in the large current repetitive fuse of FIG. 1.
  • FIG. 4 is a diagram illustrating a positive temperature coefficient thermistor according to an example.
  • 5 is a graph showing resistance characteristics with temperature of a static thermistor.
  • FIG. 6 is a schematic view of a large current repetitive fuse according to a second embodiment.
  • FIG. 7 is a schematic cross-sectional view of the high-current repetitive fuse of FIG. 6.
  • FIG. 8 is a diagram illustrating a state in which the first lead terminal and the second lead terminal are electrically shorted in the large current repetitive fuse of FIG. 6.
  • FIG. 9 is a view schematically showing a large current repetitive fuse according to a third embodiment.
  • FIG. 10 is a schematic cross-sectional view of the high current repetitive fuse of FIG. 9.
  • FIG. 11 is a view schematically showing a large current repetitive fuse according to a fourth embodiment.
  • FIG. 12 is a schematic cross-sectional view of the high current repetitive fuse of FIG. 11.
  • FIG. 13 is a view schematically showing a large current repetitive fuse according to a fifth embodiment of the present invention.
  • FIG. 14 is a schematic cross-sectional view of the high current repetitive fuse of FIG. 13.
  • FIG. 15 schematically illustrates a large current repetitive fuse according to a sixth embodiment.
  • FIG. 16 schematically illustrates a large current repetitive fuse according to a seventh embodiment.
  • 17 is an enlarged view of the front contact portion and the contact operation plate.
  • FIG. 18 is a schematic cross-sectional view of a large current repetitive fuse according to an eighth embodiment.
  • 19 is a schematic cross-sectional view of a large current repetitive fuse according to a ninth embodiment.
  • first lead terminal 112 first contact portion
  • first contact portion 120 second lead terminal
  • first terminal connection portion 128 second terminal connection portion
  • first connecting portion 136 first plate portion
  • the high-current repetitive fuse may include a housing having an inner space, a first lead terminal disposed on a side of the housing, and spaced apart from the first lead terminal on a side of the housing.
  • a contact operation plate disposed within the second lead terminal and the housing and electrically shorted with the housing and electrically interrupted with the first lead terminal or the first lead terminal and the second lead terminal.
  • a main spring installed inside the housing, the main spring being an elastic member electrically intermittent between the first lead terminal and the contact operating plate or the first lead terminal and the second lead terminal and the contact operating plate.
  • a bias spring and a static thermistor inserted into the housing and electrically connected to the first lead terminal and the second lead terminal.
  • the positive characteristic thermistor includes a positive temperature coefficient element that increases the electrical resistance when the temperature is higher than a certain threshold temperature, the contact operation plate is interlocked with the tensile force of the main spring and the bias spring, the contact operation plate is The main spring and the bias spring are extended or The first lead terminal or the first lead terminal and the second lead terminal are electrically connected to or short-circuited by being moved in conjunction with the compression direction.
  • the high-current repetitive fuse may include a housing having an inner space, a first lead terminal disposed on a side of the housing, and spaced apart from the first lead terminal on a side of the housing.
  • a contact operation plate disposed within the second lead terminal and the housing and electrically shorted with the housing and electrically interrupted with the first lead terminal or the first lead terminal and the second lead terminal.
  • a main spring installed inside the housing, the main spring being an elastic member electrically intermittent between the first lead terminal and the contact operating plate or the first lead terminal and the second lead terminal and the contact operating plate.
  • a bias spring and a static thermistor inserted into the housing and electrically connected to the first lead terminal and the second lead terminal.
  • the positive temperature coefficient thermistor comprises a positive temperature coefficient element becomes higher than a certain critical temperature increases the electric resistance.
  • the contact operation plate is linked to the tensile force of the main spring and the bias spring, the contact operation plate is the main spring and the bias spring is extended or
  • the first lead terminal or the first lead terminal and the second lead terminal are electrically connected to or short-circuited by being moved in conjunction with the compression direction.
  • the plate is spaced apart from the first lead terminal or the first lead terminal and the second lead terminal to be electrically shorted with the first lead terminal or the first lead terminal and the second lead terminal, so that the first lead terminal and the If the current flow between the second lead terminals is continuously interrupted, and the overcurrent disappears or the temperature inside the housing is lower than a certain threshold temperature, the static thermistor is cooled and the tension force of the main spring is reduced so that the contact operating plate Is the first lead by the tension of the bias spring Here it is or wherein the first lead terminal and the second receiving the pressing force toward the lead terminal of the first lead terminal or the first lead terminal and the connection to the second lead terminal electrically returns to the normal state.
  • the positive characteristic thermistor is provided between a first electrode electrically connected to the first lead terminal, a second electrode electrically connected to the second lead terminal, and between the first electrode and the second electrode, and has a specific threshold. It may include a positive temperature coefficient device that the electrical resistance is greater than the temperature.
  • the static thermistor has a plate-like structure, the side of the static thermistor may be provided with an insulator for preventing a short between the first electrode and the second electrode.
  • the constant temperature coefficient device may be made of a BaTiO 3 -based ceramic material.
  • the constant temperature coefficient device may be formed of a polymer material formed by dispersing conductive metal particles in a polymer matrix.
  • the large current repetitive fuse may be inserted into the housing and may further include a support block for fixing the contact operation plate, wherein the support block is connected to one end of the contact operation plate to connect the contact operation plate. It is supported and can be made of insulators.
  • the main spring may be made of a shape memory alloy, and the bias spring may be made of a conductive spring, and the main spring is provided when an overcurrent higher than a reference value is applied or the temperature inside the housing is higher than a specific threshold temperature due to an external environment.
  • the tensile force of the bias spring is greater than the tension force of the bias spring, when the overcurrent disappears or the temperature inside the housing is lower than a certain threshold temperature, the tensile force of the main spring is less than the tension force of the bias spring is smaller than the tension force of the bias spring by the contact
  • the operation plate is pressed against the first lead terminal or the first lead terminal and the second lead terminal.
  • a first opening is provided on the first side surface of the housing, and the first lead terminal and the second lead terminal are inserted and positioned through the first opening, and the contact operation plate comprises the first lead terminal and the first lead.
  • the second lead terminal may be electrically interrupted, and the first lead terminal and the second lead terminal may be electrically connected or short-circuited through the contact operation plate.
  • the first lead terminal and the second lead terminal of the portion connected to the contact operation plate may be provided with a contact portion protruding upward, and the connection portion of the contact operation plate, which is a portion connected to the contact portion, is plate-shaped. It may be provided as.
  • the contact operation plate may be connected to the first lead terminal and the second lead terminal, a conductive connection part, a first connection part connected to the connection part, and the first connection part connected to the main spring and the bias spring. It may include a plate-shaped first plate portion that receives a direct force according to the tensile force of the first plate portion is subjected to the force by the stretching movement of the main spring and the bias spring, the first plate portion is interlocked with the force received
  • the connection part may be electrically connected to or short-circuited with the first lead terminal and the second lead terminal.
  • the main spring and the bias spring are arranged to extend or compress in a direction parallel to the direction in which the connecting portion moves, the main spring is disposed between the static thermistor and the first plate portion, the bias spring is the first spring It may be disposed between the first plate portion and the inner wall of the housing which is opposite to the main spring is disposed on the plate portion.
  • the main spring and the bias spring are arranged to extend or compress in a direction parallel to the direction in which the connecting portion moves, the connecting portion has a plate-like structure, the main spring is disposed between the static thermistor and the first plate portion
  • the bias spring may be disposed between the connection part opposite to the main spring on which the main spring is disposed and the inner wall of the housing.
  • the contact operation plate may include a conductive connecting portion, which is a portion for connecting with the first lead terminal and the second lead terminal, a first connecting portion connected to the connecting portion, and a tensile force of the main spring connected to the first connecting portion.
  • a plate-shaped first plate portion that receives the direct force
  • a second connection portion that is connected to the first plate portion
  • a plate-shaped second plate portion that is connected to the second connection portion and receives a direct force according to the tension force of the bias spring.
  • the bias spring is disposed between the first plate portion, and the main spring is based on the second connection portion. Disposed between the second plate part and the inner wall of the housing, which is disposed opposite to each other, and the connection part is electrically connected to the first lead terminal and the second lead terminal in response to a force received by the first plate part and the second plate part. Can be connected or shorted.
  • the high current repetitive fuse may further include a trigger terminal inserted into and disposed through a second opening provided in the second side of the housing, and the trigger terminal may be electrically connected to the static thermistor.
  • a first opening is provided on a first side of the housing, a second opening is provided on a second side of the housing, the first lead terminal is inserted through the first opening, and the second opening is positioned.
  • the second lead terminal is inserted and positioned therethrough, and the contact operation plate is provided to be electrically connected to the second lead terminal and is electrically intermittently provided to the first lead terminal.
  • the lead terminal and the second lead terminal may be electrically connected or short-circuited through the contact operation plate.
  • the first lead terminal of the portion connected to the contact operation plate may be provided with a contact portion protruding upward, and the connection portion of the contact operation plate, which is a portion connected to the contact portion, may be provided in a plate shape.
  • the first lead terminal of the portion connected to the contact operation plate may be provided with a plurality of contact portions protruding upward, and the connection portion of the contact operation plate, which is a portion connected to the contact portion, may be provided in a plate shape. have.
  • the first lead terminal of the portion connected to the contact operation plate may be provided with a rod-shaped front contact portion protruding upward to increase the contact area, and the contact operation plate is a portion connected to the contact contact portion.
  • the connecting portion of may be provided in a plate shape.
  • the contact operation plate is connected to the first lead terminal, a conductive connection part, the first connection part connected to the connection part and the first connection part connected to the direct force according to the tension force of the main spring and the bias spring It may include a plate-shaped first plate portion, the first plate portion is subjected to the force by the expansion and contraction movement of the main spring and the bias spring, the connection portion is interlocked with the force received by the first plate portion 1 may be electrically connected to the lead terminal or may be short-circuited.
  • the main spring and the bias spring are arranged to extend or compress in a direction parallel to the direction in which the connecting portion moves, the main spring is disposed between the static thermistor and the first plate portion, the bias spring is the first spring It may be disposed between the first plate portion and the inner wall of the housing which is opposite to the main spring is disposed on the plate portion.
  • the main spring and the bias spring are arranged to extend or compress in a direction parallel to the direction in which the connecting portion moves, the connecting portion has a plate-like structure, the main spring is disposed between the static thermistor and the first plate portion
  • the bias spring may be disposed between the connection part opposite to the main spring on which the main spring is disposed and the inner wall of the housing.
  • the contact operation plate may include a conductive connection portion, which is a portion connecting to the first lead terminal, a first connection portion connected to the connection portion, and a first force connected to the first connection portion and subjected to a direct force according to a tensile force of the main spring.
  • the first plate portion is forced by the stretching movement of the main spring
  • the second plate portion is forced by the stretching movement of the bias spring
  • the main spring is the static thermistor and the first plate portion Interposed between the main spring and the bias spring relative to the second connection
  • the second is disposed between the plate portion and the inner wall of the housing, the second is linked to the first plate portion and the second plate portion receiving power may be connected to the additional connection or short circuit in a first lead terminal and electrically.
  • the high current repetitive fuse may further include a trigger terminal inserted into and disposed through a third opening provided in the third side of the housing, and the trigger terminal may be electrically connected to the static thermistor.
  • FIG. 1 is a view schematically showing a large current repetitive fuse according to a first embodiment of the present invention
  • Figure 2 is a cross-sectional view schematically showing a large current repetitive fuse of Figure 1
  • Figure 3 is a large current for Figure 1
  • FIG. 4 is a diagram illustrating an electrical short circuit between a first lead terminal and a second lead terminal in a repetitive fuse.
  • FIG. 4 is a diagram illustrating a positive temperature coefficient thermistor according to an example, and FIG. This graph shows the resistance characteristics of the thermistor over temperature.
  • a repeating fuse for a large current includes a housing 100 having an internal space and a first lead terminal disposed on a first side of the housing 100. 110, a second lead terminal 120 spaced apart from the first lead terminal 110 on the first side of the housing 100, and disposed inside the housing 100 and electrically connected to the housing 100. It is installed in the housing 100 and the contact operation plate 130 which is short-circuited and is electrically interrupted (electrically connected or short-circuited) with the first lead terminal 110 and the second lead terminal 120.
  • the main spring 140 and the bias spring 150 which is an elastic member electrically intermittently interposed between the first lead terminal 110 and the second lead terminal 120 and the contact plate 130 and And a positive temperature thermistor inserted into the housing 100 and connected to the first lead terminal 110 and the second lead terminal 120.
  • efficient thermistor 160.
  • the high current repetitive fuse may further include an insulating waterproof adhesive part (not shown) that fixes the first lead terminal 110 and the second lead terminal 120 and seals the inside of the housing 100.
  • the high-current repetitive fuse may further include a support block 170 for being inserted into the housing 100 and fixing the contact operation plate 130.
  • the main spring 140 may be made of a shape memory alloy and the bias spring 150 may be made of a conductive spring.
  • the tension force of the main spring 140 is greater than the tension force of the bias spring 150, so that the contact operating plate
  • the first contact terminal 110 and the second lead terminal 120 are separated from each other so that the contact operating plate 130, the first lead terminal 110, and the second lead terminal 120 are electrically shorted. Current flow between the lead terminal 110 and the second lead terminal 120 is blocked.
  • the static thermistor 160 is cooled and the tension force of the main spring 140 decreases, thereby increasing the tension of the main spring 140. Is smaller than the tensile force of the bias spring 150, and the first operating lead 130 is pressed by the contact action plate 130 toward the first lead terminal 110 and the second lead terminal 120 by the tension force of the bias spring 150.
  • the terminal 110 is electrically connected to the second lead terminal 120.
  • the main spring 140 When the overcurrent flows in, the main spring 140 extends (expands) due to the heat generated by the bias spring 150, thereby disconnecting the connection between the first lead terminal 110 and the second lead terminal 120 and the contact operation plate 130.
  • the overcurrent flows to the static thermistor 160, and due to the inflow of the overcurrent, the static thermistor 160 self-heats and continuously maintains the main spring 140 in a high temperature state (eg, 110 ° C or higher).
  • the first lead terminal 110, the second lead terminal 120, and the contact operation plate 130 are maintained in an electrically shorted state.
  • the self-heating of the static thermistor 160 is stopped and cooled, and the tensile force of the main spring 140 is also reduced, so that the contact force is caused by the tension of the bias spring 150.
  • the operation plate 130 is pressed against the first lead terminal 110 and the second lead terminal 120 and the first lead terminal 110 and the second lead terminal 120 and the contact operating plate 130 are The state of electrical connection is returned.
  • the housing 100 may have various shapes such as a circular box, an elliptical box, a polygonal box, and the like, having an inner space and having a vertical cross section perpendicular to the longitudinal direction.
  • the housing 100 has an inner space and extends in the longitudinal direction and has a rectangular box shape in which a cross section perpendicular to the longitudinal direction forms a rectangle.
  • the housing 100 receives and protects the contact operating plate 130, the main spring 140, and the bias spring 150 therein.
  • a first opening 104 is formed in the first side surface of the housing 100, and the first lead terminal 110 and the second lead terminal (through the first opening 104 formed in the first side of the housing 100). 120 is inserted and positioned.
  • the housing 100 may be formed of an insulating material or a conductive material according to the embodiment.
  • the first lead terminal 110 is a means for electrical connection.
  • the first lead terminal 110 transmits a current applied from the second lead terminal 120 to the electronic device, and includes a conductive material.
  • the first lead terminal 110 is provided on the first side surface of the housing 100.
  • the first lead terminal 110 is disposed at one end of the housing 100 having a rectangular box shape.
  • the first lead terminal 110 may be disposed to be inserted through the first side surface of the housing 100.
  • the present invention is not limited thereto, and the first lead terminal 110 may be disposed at any position as long as the first lead terminal 110 may be electrically connected or short-circuited with the contact operation plate 130.
  • the first lead terminal 110 is disposed to be insulated from the housing 100.
  • the first side of the housing 100 on which the first lead terminal 110 is disposed is formed as an opening shape to separate the housing 100 from the first lead terminal 110 or the first lead terminal 110. It may be formed by coating an insulator on the inner circumferential surface of the housing 100 passing through.
  • the first lead terminal 110 is disposed to be connected to the static thermistor 160, specifically, the first electrode 162 of the static thermistor 160.
  • the first lead terminal 110 may be provided with a first contact portion 112 protruding upward from a portion connected to the connection portion 132 of the contact operation plate 130.
  • the second lead terminal 120 is a component that receives an external power source or is connected to the power source, and includes a conductive material.
  • the second lead terminal 120 is spaced apart from the first lead terminal 110 by a predetermined distance.
  • the second lead terminal 120 is inserted through the first opening 104 provided in the first side surface of the housing 100 to allow the first lead terminal ( The second lead terminal 120 and 110 are spaced apart from each other.
  • the second lead terminal 120 is disposed to be insulated from the housing 100.
  • the first side of the housing 100 on which the second lead terminals 120 are disposed is formed as an opening shape to separate the housing 100 from the second lead terminals 120 or the second lead terminals 120. It may be formed by coating an insulator on the inner circumferential surface of the housing 100 passing through.
  • the second lead terminal 120 is arranged to be connected to the opposite surface (second electrode 164) of the static thermistor 160 to which the first lead terminal 110 is connected.
  • a stepped portion 124 folded downward in the second lead terminal 120 may be formed to be connected to the second electrode 164 of the static thermistor 160.
  • the second lead terminal 120 may be provided with a second contact portion 122 protruding upward in a portion connected to the connection portion 132 of the contact operation plate 130.
  • the first lead terminal 110 is electrically connected to or short-circuited with the second lead terminal 120 through the contact operation plate 130.
  • the contact operation plate 130 is a means for electrically connecting or shorting the first lead terminal 110 and the second lead terminal 120, and is provided in the housing 100.
  • the contact operation plate 130 is interlocked with the tensile force of the main spring 140 and the bias spring 150, and moves in conjunction with the direction in which the main spring 140 and the bias spring 150 are extended or compressed to move the first lead terminal ( 110 and the second lead terminal 120 are electrically connected or short-circuited.
  • the contact operation plate 130 is a connecting portion 132 which is a portion for connecting with the first lead terminal 110 and the second lead terminal 120, the first connecting portion 134, the first connecting portion 134, the first connecting portion 132
  • the first plate part 136 may be connected to the connection part 134 and receive a direct force according to a tensile force of at least one elastic member selected from the main spring 140 and the bias spring 150.
  • connection part 132 is electrically connected to or short-circuited with the first contact part 112 of the first lead terminal 110 and may be provided in a flat plate shape.
  • connection portion ( 132 is also electrically connected to or short-circuited with the second contact portion 122 of the second lead terminal 120.
  • the connecting portion 132 includes a conductive material.
  • the first connection part 134 connected to the connection part 132 may be provided in a flat plate shape and may include a conductive material.
  • the first connection part 134 serves as a medium for connecting the connection part 132 and the first plate part 136.
  • the first connection part 134 may be provided perpendicular to the connection part 132 and may also be provided perpendicularly to the first plate part 136. have.
  • the position of the first plate portion 136 is higher than the position of the connecting portion 132. It may have a mold structure.
  • the first plate part 136 is connected to the first connection part 134 and is a member that receives a direct force due to the stretching motion of at least one elastic member selected from the main spring 140 and the bias spring 150.
  • the first plate portion 136 may include a conductive material.
  • the first plate part 136 is subjected to the force by the expansion and contraction movement of the main spring 140 and the bias spring 150, the connection portion 132 is the first lead in conjunction with the force received by the first plate part 136
  • the terminal 110 and the second lead terminal 120 are electrically interrupted, that is, electrically connected or short-circuited. Therefore, the first lead terminal 110 and the second lead terminal 120 are connected or shorted as the connection part 132 is connected or short-circuited with the first lead terminal 110 and the second lead terminal 120.
  • a support block 170 may be formed at a side surface of the housing 100 to support the first plate part 136 and be connected to the first plate part 136.
  • the support block 170 may be formed in a direction perpendicular to the longitudinal direction of the first plate portion 136 to support the first plate portion 136 at one end of the housing 100. 170 is connected to one end of the first plate portion 136 opposite to the portion connected to the first connecting portion 134.
  • the support block 170 may be in any form as long as it can support the first plate portion 136.
  • the support block 170 may be made of an insulator.
  • the main spring 140 and the bias spring 150 are connected to the first lead terminal 110 and the contact portion 132 of the contact operation plate 130 and the contact portion 132 of the second lead terminal 120 and the contact operation plate 130. ) Is a means for electrically connecting or shorting.
  • the main spring 140 and the bias spring 150 are disposed inside the housing 100, and are arranged to extend or compress in a direction parallel to the direction in which the connecting portion 132 moves (the direction indicated by the solid arrows in FIG. 3). do.
  • the main spring 140 is disposed between the static thermistor 160 and the first plate 136 and is connected to the static thermistor 160 inside the housing 100.
  • the bias spring 150 is disposed between the first plate portion 136 and the inner wall of the housing 100 opposite to the main spring 140 on the first plate portion 136.
  • the main spring 140 electrically connects the connecting portion 132 of the first lead terminal 110 and the contact operating plate 130 and the connecting portion 132 of the second lead terminal 120 and the contact operating plate 130. In order to intermittently, it may be provided between the static characteristic thermistor 160 and the first plate portion 136. At this time, when the internal temperature of the housing 100 is lower than a specific threshold temperature (or the transition temperature of the main spring 140), the main spring 140 is compressed and the static thermistor 160 and the first plate portion ( 136). When the main spring 140 is in a compressed state, the connecting portion 132 of the first lead terminal 110 and the contact operating plate 130 and the connecting portion 132 of the second lead terminal 120 and the contact operating plate 130 are provided.
  • a specific threshold temperature or the transition temperature of the main spring 140
  • the main spring 140 is formed of a shape memory alloy having a property of being deformed below the transition temperature and above the transition temperature to return to the shape before deformation, and heat is applied to the main spring 140 in the compressed state. If it is above the transition temperature, it can be elongated.
  • the main spring 140 may include a nitinol or a copper (Cu) / zinc (Zn) / aluminum (Al) alloy, which is an alloy of titanium (Ti) and nickel (Ni).
  • the bias spring 150 is connected to the first lead terminal 110 and the contact operating plate 130 together with the main spring 140, and the contact portion of the second lead terminal 120 and the contact operating plate 130 ( 132 is electrically intermittently interposed between the first plate portion 136 and the inner wall of the housing 100 opposite to the main spring 140 on the first plate portion 136. It may be provided. In this case, unlike the main spring 140, the bias spring 150 may be formed of a general metal material such as stainless steel instead of a shape memory alloy material. For example, the bias spring 150 may be formed by using stainless steel as a main body and plating silver on the main body.
  • the bias spring 150 flows a stable current due to the conductivity of the metal itself and the silver plating at a constant voltage and current, and then increases the temperature of the bias spring 150 when an overvoltage or overcurrent is applied. As such, the bias spring 150 is in the same tensioned state as the general spring, and the first plate portion 136 and the housing 100 which are opposite to each other on which the main spring 140 is disposed based on the first plate portion 136.
  • the bias spring 150 may be compressed to electrically short the first lead terminal 110, the second lead terminal 120, and the connection part 132 of the contact operation plate 130.
  • the coil-shaped main spring 140 and the bias spring 150 may be used as an elastic member to form a repeating fuse for a large current, but is not limited thereto.
  • the main spring 140 or / and the bias spring 150 may be It may be a spring having a shape other than a coil such as a leaf spring.
  • the static thermistor 160 is positioned at the lower end of the housing 100 and is disposed to be electrically connected to the first lead terminal 110 and the second lead terminal 120.
  • the first lead terminal 110 is connected to one surface of the static thermistor 160 and the second lead terminal 120 is provided to be connected to the other surface of the static thermistor 160 opposite to the one surface. Can be.
  • the static thermistor 160 is a thermally sensitive resistor having a positive temperature coefficient (PTC) that increases in resistance as the temperature increases, and is a resistor in which the resistance increases rapidly with temperature change. Such a static thermistor 160 exhibits self-heating characteristics.
  • PTC positive temperature coefficient
  • the static thermistor 160 includes a first electrode 162 connected to the first lead terminal 110 and a second electrode 164 connected to the second lead terminal 120. ), A positive temperature coefficient element 166 having a positive temperature coefficient (PTC) having a property of rapidly increasing electrical resistance above a certain threshold temperature.
  • the constant temperature coefficient device 166 may be made of a ceramic material or a polymer material.
  • the static thermistor 160 may have a plate-like structure, and an insulator (not shown) may be provided on a side of the static thermistor 160 to prevent a short between the first electrode 162 and the second electrode 134.
  • the static thermistor 160 has a characteristic in which electrical resistance changes rapidly near a critical temperature (Curie temperature).
  • the constant temperature coefficient device 166 may be made by mixing a predetermined amount (for example, 2% to 0.01%) of tin, cerium, and the like in the BaTiO 3 based ceramic.
  • barium titanate (BaTiO 3 ) powder and niobium trioxide (NbO 3 ) powder are mixed in a weight ratio of 98 to 99.95: 2 to 0.05, and the desired static characteristics thermistor After molding to a shape of, it may be formed by baking for 1 to 12 hours at a temperature of about 1100 to 1500 °C.
  • barium titanate (BaTiO 3 ) powder, niobium trioxide (NbO 3 ) powder, niobium pentoxide (Nb 2 O 5 ) powder is a predetermined weight ratio (eg, 98 to 99.95: 2 to 0.05: 0.5 to 0.01), and may be formed into a desired static thermistor, followed by baking for 1 to 12 hours at a temperature of about 1100 to 1500 ° C.
  • the constant temperature coefficient device 166 may be formed of a polymer material formed by containing conductive metal particles such as conductive nickel (Ni) in a polymer matrix.
  • FIG. 5 shows the resistance characteristics with temperature of the static thermistor.
  • Typical static thermistors have a sharp increase in electrical resistance at 80-150 ° C.
  • the high-current repeating fuse equipped with such a static thermistor has a very high electrical resistance of the static thermistor itself when the temperature of the static thermistor rises above a critical temperature of 80 to 150 ° C. due to an overcurrent or an external heat source higher than the reference value.
  • the resistance of the constant temperature coefficient element 166 is very high, so that the current flows continuously through the static thermistor 160. Can be blocked.
  • the high-current repetitive fuse having the structure as described above may be applied when the normal current or voltage below the reference value is applied to the first lead terminal 110 or the second lead terminal 120 or when the internal temperature of the housing 100 is lower than a specific threshold temperature.
  • the bias spring 150 is in a tensioned state and the main spring 140 is maintained in a compressed state by the tension of the tensioned bias spring 150.
  • the first lead terminal 110 and the second lead terminal 120 are electrically connected to the connecting portion 132 of the contact operation plate 130, and the first lead terminal 110 connects the contact operation plate 130. It is electrically connected to the second lead terminal 120 through.
  • the repetitive fuse for a large current includes the first lead terminal 110 and the second lead when an abnormal power source, for example, a current or voltage higher than a reference value is applied to the first lead terminal 110 or the second lead terminal 120.
  • the bias spring 150 is connected to the bias spring 150 through a connection part 132 electrically connected to the terminal 120, a first connection part 134 connected to the connection part 132, and a first plate part 136 connected to the first connection part 134. High current is applied. When a high current is applied to the bias spring 150, the temperature of the bias spring 150 is increased by the resistance value of the bias spring 150, and the temperature inside the housing 100 is increased.
  • the main spring 140 formed of the shape memory alloy has a shape of the main spring 140 that is tensioned according to the elevated temperature. Change. That is, as shown in FIG. 3, when the main spring 140 has a tensioned shape, the first plate part 136 of the contact operation plate 130 is biased by the tension force of the main spring 140. 150 is pushed in the direction in which it is located and thereby bias spring 150 is compressed. In this way, when the main spring 140 is tensioned, the connection part 132 of the contact operation plate 130 moves upward in association with the force received by the first plate part 136 to move the first lead terminal 110 and the second lead.
  • the terminal 120 and the connecting portion 132 of the contact operating plate 130 are spaced apart and electrically shorted, and as a result, the first lead terminal 110 and the second lead terminal 120 are short-circuited to form the first lead terminal 110. ) And the second lead terminal 120 does not flow current.
  • the tensile force of the main spring 140 when the transition (transformation) temperature or less for this operation is less than the tension of the bias spring 150, the tensile force of the main spring 140 when the transition (transformation) temperature or more is biased. It is greater than the tensile force of the spring 150.
  • the static thermistor 160 is made of a barium titanate (BaTiO 3 ) -based ceramic or polymer material. As described above, the static thermistor 160 has a property of rapidly increasing electric resistance when the temperature is increased. The static thermistor 160 has a characteristic that the electrical resistance is not increased gradually in direct proportion to the temperature rise, but the electrical resistance is rapidly increased at a specific threshold temperature, and when the temperature is maintained above the specific threshold temperature, the current flow continuously. Restrict. The static thermistor 160 may perform a switch function to prevent the current from flowing due to the increase in the electrical resistance when the electrical resistance is changed or the overcurrent flows according to the temperature.
  • BaTiO 3 barium titanate
  • the main spring which is a shape memory alloy material 140 is tensioned by the temperature rise, and the connecting portion 132 of the contact operating plate 130 is moved from the first lead terminal 110 and the second lead terminal 120 by the pressure of the tensioned main spring 140.
  • the electrical current between the first lead terminal 110 and the second lead terminal 120 and the contact operation plate 130 is in an electrical short state, and the current path (path) immediately
  • the temperature of the static thermistor 160 is also rapidly increased by the joule heat (joule) when the temperature rises above a certain threshold temperature, the electrical resistance of the static thermistor 160 itself is sudden
  • the main spring 140 which is a shape memory alloy material, is kept in a tensioned state, the current flows unless the temperature of the static thermistor 160 falls below a certain threshold temperature. This can be blocked continuously.
  • the temperature of the static thermistor 160 does not fall below a certain threshold temperature, so that the high electrical resistance of the static thermistor 160 itself is maintained and positive. Due to the heat generation of the characteristic thermistor 160, the main spring 140, which is a shape memory alloy material, is kept in a tensioned state, and thus a state in which the current is not energized in the static thermistor 160 is maintained. Therefore, while the electrical short between the first lead terminal 110 and the second lead terminal 120 and the contact portion 132 of the contact operation plate 130 due to the extension of the main spring 140 is maintained, The flow is continuously interrupted, which cuts off the power supply through the large current repeatable fuse.
  • the high-current repeating fuse including the static thermistor 160 maintains the current interruption state by the static thermistor 160 even when abnormal power is continuously applied or an external heat source is continuously maintained. By preventing the connection, it is possible to prevent the occurrence of fire or failure of the electrical and electronic products due to overheating of the circuit or the like.
  • the static resistance thermistor 160 made of a ceramic or polymer material having a characteristic of continuously limiting the current flow is used because the electrical resistance increases as the temperature increases, and particularly, the electrical resistance increases rapidly above a certain threshold temperature.
  • an abnormal power supply for example, an overcurrent or overvoltage higher than a reference value is detected or the static thermistor 160 rises above a certain threshold temperature by an external heat source, the electrical resistance of the static thermistor 160 increases rapidly to increase the current. By continuing to restrict the flow of power, the power supply can be shut off continuously. When the abnormal power supply or external heat source disappears, the static thermistor cools down and returns to normal current flow.
  • the power is connected to the second lead terminal 120 and the electrical and electronic device such as a circuit is connected to the first lead terminal 110, but the power is connected to the first lead terminal 110 and the second is connected.
  • the electronic device may be connected to the lead terminal 120.
  • the current is supplied to the second lead terminal 120, the connecting portion 132 of the contact operation plate 130, and the first lead. Normal operation flows to the terminal 110 to maintain a resistance value (for example, several m ⁇ ) close to the conducting wire.
  • the connecting portion 132 of the contact operating plate 130 is connected to the first lead terminal 110 and the second lead terminal 120 by the tension force of the bias spring 150. Is electrically connected).
  • a current or voltage below a reference value is applied through the second lead terminal 120, a current flows through the second lead terminal 120 to the connection portion 132 of the contact operation plate 130, and the contact operation plate 130. Is connected to the first lead terminal 110, so that a current flows toward the electric / electronic device in which the circuit is formed.
  • the joule heat is generated due to the resistance value of the bias spring 150, so that the main spring 140, which is a shape memory alloy material, is elongated, and the main spring 140
  • the first plate part 136 is moved upward by the tension force, so that the connecting portion 132 of the contact operation plate 130 is moved upward to be separated from the first lead terminal 110 and the second lead terminal 120 and the first It is electrically shorted with the lead terminal 110 and the second lead terminal 120. Since the separation between the connecting portion 132 of the contact operation plate 130 and the first lead terminal 110 and the second lead terminal 120 is maintained by the extension of the main spring 140, power connection of electrical and electronic products Can be blocked.
  • the bias spring 150 When abnormal power is applied as described above, the bias spring 150 rapidly generates heat by Joule heat by the resistance of the bias spring 150 to operate (expand) the main spring 140 made of a shape memory alloy. Accordingly, as shown in FIG. 3, the contact between the first lead terminal 110 and the second lead terminal 120 and the connecting portion 132 of the contact operation plate 130 is separated, thereby causing an electrical short circuit. ) Flows through the second lead terminal 120 to the static thermistor 160, where the resistance of the static thermistor 160 is several tens of mV to several kV, which is higher than the value of the bias spring 150 (several mV). The overcurrent also causes Joule heat to increase the resistance value to several tens of tens to tens of microseconds within a few seconds, which is almost insulated, thereby blocking the overcurrent.
  • the static characteristics thermistor 160 continuously generates the main spring 140 made of the shape memory alloy in an expanded state, so that the abnormal operation of the contact plate 130 is not solved.
  • the connection part 132 of the first lead terminal 110 and the second lead terminal 120 and the contact portion 132 of the contact operation plate 130 is not maintained and the electrical short circuit is maintained continuously. Overcurrent blocking is possible.
  • the first plate portion 136 is pushed downward so as to be stronger than the tension of the spring 140 so that the connecting portion 132 of the contact plate 130 is applied to the force received by the first plate portion 136. It is interlocked to receive a downward pressing force and moves toward the first lead terminal 110 and the second lead terminal 120, so that the first lead terminal 110 and the second lead terminal 120 and the contact operating plate 130 are moved.
  • the connection part 132 is electrically connected, and the high current repetitive fuse is returned to the normal operation state.
  • the tension force of the main spring 140 loses the force, thereby removing the obstacle of the return of the contact portion 132 of the contact operation plate 130, and thus the bias spring ( The connection part 132 of the contact operation plate 130 is returned by the tension force of 150 to be connected to the first lead terminal 110 and the second lead terminal 120, thereby connecting the power of the electrical and electronic product.
  • the temperature of the main spring 140 made of the shape memory alloy is also lowered, and the main spring 140 at which the temperature is lowered decreases the tensile force generated by the temperature.
  • the high current repetitive fuse has a tensile force of the main spring 140 at a transition temperature higher than the bias spring 150, but the temperature inside the housing 100 is lowered so that the main spring 140 It is preferable that the tensile force of the bias spring 150 is set to be greater than the tensile force of the main spring 140 when the transition temperature of () is below the transition (transformation) temperature.
  • FIG. 6 is a view schematically showing a large current repetitive fuse according to a second embodiment
  • Figure 7 is a schematic cross-sectional view showing a large current repetitive fuse of Figure 6
  • Figure 8 is a high current repetitive fuse of Figure 6
  • the first lead terminal and the second lead terminal is a diagram showing the appearance of an electrical short. In the following embodiments, the description of parts that overlap with those described in Embodiment 1 will be omitted.
  • the high current repetitive fuse includes a trigger terminal 180 disposed on the second side of the housing 100.
  • the trigger terminal 180 is inserted and positioned through the second side of the housing 100 and may be formed of a conductive material.
  • the trigger terminal 180 is arranged to be connected to the positive characteristic thermistor 160, specifically, the first electrode 162 of the positive characteristic thermistor 160.
  • the self-heating of the static thermistor 160 may cause an electrical short between the first lead terminal 110 and the second lead terminal 120.
  • some kind of remote control effect can be expected. That is, when a sensor or the like detects a danger of overheating of the surroundings or other safety of a device in a main processor or a microcomputer of various electronic devices, a signal voltage is applied from the main chip to the trigger terminal 180.
  • the trigger terminal 180 becomes a positive electrode and the second lead terminal 120 becomes a negative electrode so that the voltage difference between the trigger terminal 180 and the second lead terminal 120 becomes a signal voltage. Set this to.
  • the current is supplied to the second lead terminal 120, the connecting portion 132 of the contact operation plate 130, and the first lead. Normal operation flows to the terminal 110 to maintain a resistance value (for example, several m ⁇ ) close to the conducting wire.
  • the connecting portion 132 of the contact operating plate 130 is connected to the first lead terminal 110 and the second lead terminal 120 by the tension force of the bias spring 150. Is electrically connected).
  • a current or voltage below a reference value is applied through the second lead terminal 120, a current flows through the second lead terminal 120 to the connection portion 132 of the contact operation plate 130, and the contact operation plate 130. Is connected to the first lead terminal 110, so that a current flows toward the electric / electronic device in which the circuit is formed.
  • the signal voltage (approximately 5V or less) is applied to the trigger terminal 180 from the main chip.
  • a path of a current is formed through the trigger terminal 180 to the static thermistor 160, and the static thermistor 160 generates heat due to the flow of the current.
  • the resistance of the static thermistor 160 is in the range of several tens of m ⁇ to several hundreds of ohms, but Joule heats due to the applied signal voltage, and the resistance value increases to several tens of tens to tens of ohms within a few seconds, thereby almost insulated. .
  • the main spring 140 is extended by the heat generation of the static thermistor 160, and as shown in FIG. 8, the first plate part 136 moves upward by the tension force of the main spring 140 to operate the contact.
  • the connecting portion 132 of the plate 130 moves upward to be separated from the first lead terminal 110 and the second lead terminal 120 and electrically shorted to the first lead terminal 110 and the second lead terminal 120. do. Since the separation between the connecting portion 132 of the contact operation plate 130 and the first lead terminal 110 and the second lead terminal 120 is maintained by the extension of the main spring 140, power connection of electrical and electronic products Can be blocked.
  • the constant temperature thermistor 160 keeps the main spring 140 made of the shape memory alloy in an expanded state until the signal voltage through the trigger terminal 180 is blocked, the signal voltage is not blocked.
  • the connection part 132 of the contact operation plate 130 is not returned, and the state where the first lead terminal 110 and the second lead terminal 120 and the connection part 132 of the contact operation plate 130 are electrically shorted is shown. It will continue to be maintained, and continuous overcurrent blocking will be possible.
  • the self-heating of the static thermistor 160 becomes difficult and the static thermistor 160 naturally cools.
  • the tension of the main spring 140 is lost and the tension of the bias spring 150 is reduced.
  • the first spring portion 136 is stronger than the tensile force of the main spring 140, the first plate portion 136 receives downward pressing force, and thus the connecting portion 132 of the contact operation plate 130 receives the force received by the first plate portion 136.
  • the first lead terminal 110 and the second lead terminal 120 and the contact operation plate 130 are moved toward the first lead terminal 110 and the second lead terminal 120 in response to the pressing force in the downward direction
  • the connecting portion 132 is electrically connected, and the large current repetitive fuse is returned to the normal operating state.
  • the tensile force of the main spring 140 loses the force, thereby removing the obstacle of the return of the contact portion 132 of the contact operation plate 130, thereby eliminating the bias spring (
  • the connection part 132 of the contact operation plate 130 is returned by the tension force of 150 to be connected to the first lead terminal 110 and the second lead terminal 120, thereby connecting the power of the electrical and electronic product.
  • the temperature of the main spring 140 made of the shape memory alloy is also lowered, and the main spring 140 at which the temperature is lowered decreases the tensile force generated by the temperature.
  • the tension force of the spring 140 is reduced, the main spring 140 is compressed again by the tension force of the bias spring 150, and thus the first lead terminal 110 and the second lead terminal 120 and the contact operating plate (
  • the connecting portion 132 of 130 is electrically connected.
  • FIG. 9 is a view schematically showing a large current repetitive fuse according to a third embodiment
  • FIG. 10 is a cross-sectional view schematically showing the high current repetitive fuse of FIG. 9.
  • the large current repetitive fuse is disposed such that the main spring 140 and the bias spring 150 extend or compress in a direction parallel to the direction in which the connecting portion 132 of the contact operation plate 130 moves.
  • the main spring 140 is disposed between the static thermistor 160 and the first plate portion 136, and the bias spring 150 has the main spring 140 disposed on the first connection portion 134. It is disposed between the connecting portion 132 of the contact operation plate 130 on the opposite side and the inner wall of the housing 100.
  • the connection part 132 of the contact operation plate 130 may have a plate shape.
  • the large-current repeating fuse according to the present embodiment may further include the trigger terminal described in the second embodiment.
  • the large current repetitive fuse has a structure in which the main spring 140 and the bias spring 150 are arranged side by side, and such a structure reduces the height and preferably slims the size of the large current repetitive fuse. It is a structure suitable for applications that require a thin thickness such as lithium (Li) battery pack.
  • connection part 132 receives a direct force according to the expansion and contraction movement of the bias spring 150, and the first plate part 136 receives a direct force according to the expansion and movement of the main spring 140.
  • the connecting portion 132 is electrically interrupted, that is, electrically connected to the first lead terminal 110 and the second lead terminal 120 by the stretching movement of the main spring 140 and the bias spring 150. Short circuit. Therefore, the first lead terminal 110 and the second lead terminal 120 are connected or shorted as the connection part 132 is connected or short-circuited with the first lead terminal 110 and the second lead terminal 120.
  • the main spring 140 electrically interrupts the connection part 132 of the first lead terminal 110 and the contact operation plate 130 and the connection part 132 of the second lead terminal 120 and the contact operation plate 130. Iii), it may be provided between the static thermistor 160 and the first plate portion 136.
  • the connecting portion 132 of the first lead terminal 110 and the contact operating plate 130 and the connecting portion 132 of the second lead terminal 120 and the contact operating plate 130 are provided. Is in contact with the main spring 140 when the main spring 140 is extended, and the connecting portion 132 of the first lead terminal 110 and the contact operating plate 130 and the second lead terminal 120 and the contact operating plate 130 are connected to each other.
  • the connection portions 132 may be electrically shorted apart.
  • the bias spring 150 is connected to the first lead terminal 110 and the contact operating plate 130 together with the main spring 140, and the contact portion of the second lead terminal 120 and the contact operating plate 130 ( In order to electrically control the 132, the connection part 132 of the contact operation plate 130 and the housing 100 of the contact operating plate 130 opposite to the main spring 140 are disposed on the basis of the first connection part 134. It may be provided between the inner wall.
  • the bias spring 150 is provided between the connecting portion 132 of the contact operation plate 130 opposite to the main spring 140 on the first connection portion 134 and the inner wall of the housing 100 in a tensioned state.
  • connection part 132 of the contact operation plate 130 When the connection part 132 of the contact operation plate 130 is maintained to be connected to the first lead terminal 110 and the second lead terminal 120, the pressure is applied, and when the main spring 140 is extended, a bias spring ( 150 may be compressed to electrically short the first lead terminal 110, the second lead terminal 120, and the connection part 132 of the contact operation plate 130.
  • the repetitive fuse for a large current includes the first lead terminal 110 and the second lead when an abnormal power source, for example, a current or voltage higher than a reference value is applied to the first lead terminal 110 or the second lead terminal 120.
  • High current is applied to the bias spring 150 through the connection 132 electrically connected to the terminal 120.
  • the temperature of the bias spring 150 is increased by the resistance value of the bias spring 150, and the temperature inside the housing 100 is increased.
  • the main spring 140 formed of the shape memory alloy has a shape of the main spring 140 that is tensioned according to the elevated temperature. Change.
  • the first plate portion 136 of the contact operation plate 130 is pressed upward by the tension force of the main spring 140.
  • the connection part 132 of the contact operation plate 130 moves upward in response to the force received by the first plate part 136 to move the first lead terminal 110 and the first lead. 2
  • the lead terminal 120 and the connecting portion 132 of the contact operation plate 130 are spaced apart and electrically shorted. As a result, the first lead terminal 110 and the second lead terminal 120 are short-circuited to form the first lead terminal. No current flows between the 110 and the second lead terminal 120.
  • the tension of the main spring 140 is lost and the tension of the bias spring 150 is main.
  • the force of the spring 140 is greater than the tensile force, so that the connecting portion 132 is directly subjected to a downward pressing force, thereby moving toward the first lead terminal 110 and the second lead terminal 120 and thus the first lead terminal 110.
  • the connection part 132 of the second lead terminal 120 and the contact operation plate 130 are electrically connected to each other, and the large current repeating fuse is returned to the normal operation state.
  • FIG. 11 is a view schematically illustrating a large current repetitive fuse according to a fourth embodiment
  • FIG. 12 is a cross-sectional view schematically illustrating the high current repetitive fuse of FIG. 11.
  • the contact operation plate 130 is connected to the conductive connecting portion 132 and the connecting portion 132, which are portions connecting to the first lead terminal 110 and the second lead terminal 120.
  • a plate-shaped second plate portion 138 which is connected to the second connection portion 137 and the second connection portion 137 and receives a direct force according to the tension force of the bias spring 150.
  • the support block 170 is connected to the second plate portion 138 to support the contact operation plate 130, the support block 170 in the opposite direction to the portion connected to the second connecting portion 137.
  • the large current repetitive fuse has a structure in which the main spring 140 and the bias spring 150 are arranged side by side, and such a structure reduces the height and preferably slims the size of the large current repetitive fuse. It is a structure suitable for applications that require a thin thickness such as lithium (Li) battery pack.
  • the large-current repeating fuse according to the present embodiment may further include the trigger terminal described in the second embodiment.
  • the first plate portion 136 is forced by the stretching movement of the main spring 140
  • the second plate portion 138 is forced by the stretching movement of the bias spring 150
  • the main spring 140 Is disposed between the static thermistor 160 and the first plate portion 136
  • the bias spring 150 is the second plate portion opposite to the main spring 140 is disposed relative to the second connection portion 137
  • the connection part 132 is disposed between the first wall 136 and the inner wall of the housing 100, and the connection part 132 is interlocked with a force applied by the first plate part 136 and the second plate part 138. 2 is electrically connected to or shorted from the lead terminal 120.
  • the first plate portion 136 receives direct force due to the expansion and contraction movement of the main spring 140, and the second plate portion 138 directly follows the expansion movement of the bias spring 150.
  • the connecting portion 132 is electrically interrupted, that is, electrically connected to the first lead terminal 110 and the second lead terminal 120 by the stretching movement of the main spring 140 and the bias spring 150. Short circuit. Therefore, the first lead terminal 110 and the second lead terminal 120 are connected or shorted as the connection part 132 is connected or short-circuited with the first lead terminal 110 and the second lead terminal 120.
  • the main spring 140 electrically interrupts the connection part 132 of the first lead terminal 110 and the contact operation plate 130 and the connection part 132 of the second lead terminal 120 and the contact operation plate 130. Iii), it may be provided between the static thermistor 160 and the first plate portion 136.
  • the connecting portion 132 of the first lead terminal 110 and the contact operating plate 130 and the connecting portion 132 of the second lead terminal 120 and the contact operating plate 130 are provided. Is in contact with the main spring 140 when the main spring 140 is extended, and the connecting portion 132 of the first lead terminal 110 and the contact operating plate 130 and the second lead terminal 120 and the contact operating plate 130 are connected to each other.
  • the connection portions 132 may be electrically shorted apart.
  • the bias spring 150 is connected to the first lead terminal 110 and the contact operating plate 130 together with the main spring 140, and the contact portion of the second lead terminal 120 and the contact operating plate 130 ( 132 is electrically intermittently provided between the second plate portion 138 on the opposite side where the main spring 140 is disposed with respect to the second connecting portion 137 and the inner wall of the housing 100. Can be.
  • the bias spring 150 is provided between the second plate portion 138 on the opposite side where the main spring 140 is disposed with respect to the second connection portion 137 and the inner wall of the housing 100 in a tensioned state.
  • connection part 132 of the 130 is pressurized to maintain the connection with the first lead terminal 110 and the second lead terminal 120, the bias spring 150 is compressed when the main spring 140 is extended As a result, the first lead terminal 110 and the second lead terminal 120 may be electrically shorted by separating the connecting portion 132 of the contact operation plate 130.
  • the repetitive fuse for a large current includes the first lead terminal 110 and the second lead when an abnormal power source, for example, a current or voltage higher than a reference value is applied to the first lead terminal 110 or the second lead terminal 120.
  • the bias spring 150 through the connection part 132, the first connection part 134, the first plate part 136, the second connection part 137, and the second plate part 138 electrically connected to the terminal 120. High current is applied. When a high current is applied to the bias spring 150, the temperature of the bias spring 150 is increased by the resistance value of the bias spring 150, and the temperature inside the housing 100 is increased.
  • the main spring 140 formed of the shape memory alloy has a shape of the main spring 140 that is tensioned according to the elevated temperature. Change. That is, when the main spring 140 is in a tensioned shape, the first plate portion 136 of the contact operation plate 130 is pressed upward by the tension force of the main spring 140. In addition, when the main spring 140 is tensioned as described above, the connection part 132 of the contact operation plate 130 moves upward in response to the force received by the first plate part 136 to move the first lead terminal 110 and the first lead. 2 The lead terminal 120 and the connecting portion 132 of the contact operation plate 130 are spaced apart and electrically shorted. As a result, the first lead terminal 110 and the second lead terminal 120 are short-circuited to form the first lead terminal. No current flows between the 110 and the second lead terminal 120.
  • the tension of the main spring 140 is lost and the tension of the bias spring 150 is main.
  • the spring 140 is stronger than the tensile force, so that the connecting portion 132 receives a pressing force downward, and thus moves toward the first lead terminal 110 and the second lead terminal 120 to thereby move the first lead terminal 110 and the first lead.
  • the two lead terminals 120 and the connecting portion 132 of the contact operation plate 130 are electrically connected to each other, and the large current repeating fuse is returned to the normal operation state.
  • FIG. 13 is a view schematically showing a large current repeating fuse according to a fifth embodiment of the present invention
  • FIG. 14 is a cross-sectional view schematically showing the high current repeating fuse of FIG. 13.
  • a large current repetitive fuse includes a first opening 104 on a first side of the housing 100, a second opening on a second side of the housing 100, and The first lead terminal 110 is inserted and positioned through the first opening 104, and the second lead terminal 120 is inserted and positioned through the second opening, and the contact operating plate 130 is connected to the second lead terminal ( 120 is electrically connected to the first lead terminal 110 and is electrically connected to the first lead terminal 110 and the second lead terminal 120. It is electrically connected or short-circuited through.
  • the tension force of the main spring 140 is greater than the tension force of the bias spring 150, so that the contact operating plate
  • the 130 is separated from the first lead terminal 110 so that the contact operating plate 130 and the first lead terminal 110 are electrically shorted so that the current between the first lead terminal 110 and the second lead terminal 120 is reduced.
  • the flow is cut off.
  • the cause of the overcurrent disappears or the cause of the external overheating disappears and the temperature inside the housing 100 becomes lower than a certain threshold temperature
  • the static thermistor 160 is cooled and the tension force of the main spring 140 decreases, thereby increasing the tension of the main spring 140. Is smaller than the tensile force of the bias spring 150 and the contact force plate 130 is pressed against the first lead terminal 110 by the tension force of the bias spring 150 to receive the first lead terminal 110 and the second lead. It is electrically connected to the terminal 120.
  • the overcurrent is The static thermistor 160 flows to the positive characteristic thermistor 160 and the positive characteristic thermistor 160 self-heats due to the inflow of overcurrent, thereby continuously maintaining the main spring 140 in a high temperature state (eg, 110 ° C. or higher), thereby providing a first lead terminal ( 110 and the contact operation plate 130 maintains an electrically shorted state.
  • a high temperature state eg, 110 ° C. or higher
  • the self-heating of the static thermistor 160 is stopped and cooled, and the tensile force of the main spring 140 is also reduced, so that the contact force is caused by the tension of the bias spring 150.
  • the operation plate 130 is pressed against the first lead terminal 110 and the first lead terminal 110 and the contact operating plate 130 are returned to the electrically connected state.
  • a first opening 104 is formed at the first side of the housing 100, and the first lead terminal 110 is inserted and positioned through the first opening 104 formed at the first side of the housing 100.
  • a second opening is formed in the second side of the housing 100, and the second lead terminal 120 is inserted and positioned through the second opening formed in the second side of the housing 100.
  • the first lead terminal 110 is disposed to be connected to the static thermistor 160, specifically, the first electrode 162 of the static thermistor 160.
  • the second lead terminal 120 is inserted through the second opening provided in the second side surface of the housing 100 to be electrically connected to the contact operating plate 130. More specifically, the second lead terminal 120 is electrically connected to the first plate portion 136 of the contact operation plate 130 through the first terminal connection portion 126. The second lead terminal 120 is arranged to be connected to the opposite surface (second electrode 164) of the static thermistor 160 to which the first lead terminal 110 is connected.
  • the first lead terminal 110 is electrically connected to or short-circuited with the second lead terminal 120 through the contact operation plate 130.
  • the contact operation plate 130 is connected to the first connecting terminal 132, the first connecting portion 134 and the first connecting portion 134, which are connected to the first lead terminal 110, the connecting portion 132 and the main It may include a first plate portion 136 that receives a direct force according to the tensile force of the at least one elastic member selected from the spring 140 and the bias spring 150.
  • connection part 132 is electrically connected to or short-circuited with the first contact part 112 of the first lead terminal 110 and may be provided in a flat plate shape. It is preferable that a plurality of first contact portions 112 be provided in order to provide sufficient electrical connection to the first lead terminals 110. When the plurality of first contact points 112 are arranged in parallel, the contact resistance decreases to increase the current capacity. As the number of the first contact parts 112 increases, the current capacity also increases accordingly. As the connection part 132 is connected to or short-circuited with the first contact part 112 of the first lead terminal 110, the first lead terminal 110 and the second lead terminal 120 are connected or short-circuited.
  • a support block 170 may be formed at a side surface of the housing 100 to support the second lead terminal 120, and the second opening may be formed through the support block 170.
  • the main spring 140 and the bias spring 150 are means for electrically connecting or shorting the connecting portion 132 of the first lead terminal 110 and the contact operation plate 130.
  • the main spring 140 is for electrically interrupting the connecting portion 132 of the first lead terminal 110 and the contact operation plate 130.
  • the static characteristic thermistor 160 and the first plate portion 136 are provided. It may be provided between).
  • the main spring 140 is compressed and the static thermistor 160 and the first plate portion ( 136).
  • the main spring 140 is in a compressed state, the first lead terminal 110 and the connection part 132 of the contact operating plate 130 come into contact with each other.
  • the main spring 140 is extended, the first lead terminal is contacted.
  • the connection part 132 of the 110 and the contact operation plate 130 may be spaced apart and electrically shorted.
  • the bias spring 150 is to electrically interrupt the connection part 132 of the first lead terminal 110 and the contact operation plate 130 together with the main spring 140, and the first plate part 136. It may be provided between the first plate portion 136 and the inner wall of the housing 100 which is the opposite side on which the main spring 140 is disposed. The bias spring 150 is provided between the first plate portion 136 and the inner wall of the housing 100 opposite to the main spring 140 on the first plate portion 136 in a tensioned state to operate the contact.
  • the connecting portion 132 of the plate 130 is pressurized to maintain the connection with the first lead terminal 110. When the main spring 140 is extended, the bias spring 150 is compressed to compress the first lead terminal 110. ) And the connection part 132 of the contact operation plate 130 may be electrically shorted.
  • the high-current repetitive fuse having the structure as described above is applied when the normal current or voltage below the reference value is applied to the first lead terminal 110 or the second lead terminal 120 or the internal temperature of the housing 100 is lower than a specific threshold temperature.
  • the bias spring 150 is in a tensioned state and the main spring 140 is maintained in a compressed state by the tension of the tensioned bias spring 150. Accordingly, the first lead terminal 110 is electrically connected to the connecting portion 132 of the contact operation plate 130, and the first lead terminal 110 is connected to the second lead terminal 120 through the contact operation plate 130. Is electrically connected to the
  • the high current repetitive fuse is electrically connected to the first lead terminal 110 when an abnormal power source, for example, a current or voltage higher than a reference value is applied to the first lead terminal 110 or the second lead terminal 120.
  • the first connection part 132 connected to the connection part 132, the first connection part 134 connected to the connection part 132, and the first plate part 136 connected to the first connection part 134 or the second lead terminal 120.
  • a high current is applied to the bias spring 150 through the first plate portion 136 connected to the 126 and the first terminal connection portion 126.
  • the temperature of the bias spring 150 is increased by the resistance value of the bias spring 150, and the temperature inside the housing 100 is increased.
  • the main spring 140 formed of the shape memory alloy has a shape of the main spring 140 that is tensioned according to the elevated temperature. Change.
  • the first plate portion 136 of the contact operation plate 130 is pressed in the direction in which the bias spring 150 is located by the tension force of the main spring 140.
  • the bias spring 150 is thus compressed.
  • the connection part 132 of the contact operation plate 130 moves upward in association with the force received by the first plate part 136 to move the first lead terminal 110 and the contact operation plate.
  • the connecting portions 132 of the 130 are electrically shorted to be spaced apart, and as a result, the first lead terminal 110 and the second lead terminal 120 are shorted so that the first lead terminal 110 and the second lead terminal 120 are shorted. There is no current flow between).
  • the main spring which is a shape memory alloy material 140 is tensioned by the temperature rise, the contact portion 132 of the contact operation plate 130 is spaced apart from the first lead terminal 110 by the pressure of the tensioned main spring 140, the main spring 140 ), An electric short circuit occurs between the first lead terminal 110 and the contact operating plate 130, and the current path immediately passes through the static thermistor 160 and the static thermistor 160.
  • the temperature of the static thermistor 160 does not fall below a certain threshold temperature, so that the high electrical resistance of the static thermistor 160 itself is maintained and positive. Due to the heat generation of the characteristic thermistor 160, the main spring 140, which is a shape memory alloy material, is kept in a tensioned state, and thus a state in which the current is not energized in the static thermistor 160 is maintained. Therefore, the current flow is continuously interrupted while the electrical short state between the first lead terminal 110 and the connecting portion 132 of the contact operation plate 130 is continued due to the extension of the main spring 140, so that the high current It is possible to cut off the power supply through the repetitive fuse.
  • the supply of power through the large current repetitive fuse is completely cut off before the connecting portion 132 of the contact operation plate 130 is connected to the first lead terminal 110 by the extension of the bias spring 150.
  • the static thermistor 160 is cooled and the connection part 132 of the contact operation plate 130 is restored by the extension of the bias spring 150 to electrically connect with the first lead terminal 110.
  • the flow returns to the steady state current flow, and in the case of returning to the steady state current flow, the time is delayed by the time that the static thermistor 160 is cooled, and thus the circuit is sufficiently cooled.
  • a phenomenon in which an abnormality occurs in the high-current repetitive fuse itself may be suppressed, and a phenomenon such as overheating of a circuit of an electrical and electronic product may be suppressed.
  • the power is connected to the second lead terminal 120 and the electrical and electronic device such as a circuit is connected to the first lead terminal 110, but the power is connected to the first lead terminal 110 and the second is connected.
  • the electronic device may be connected to the lead terminal 120.
  • the current is the second lead terminal 120, the first terminal connection part 126, and the first plate part 136.
  • the normal operation is performed by normally flowing to the first connection part 134, the connection part 132, and the first lead terminal 110 to maintain a resistance value (for example, several m ⁇ ) close to the conducting wire.
  • the connecting portion 132 of the contact operation plate 130 is electrically connected to the first lead terminal 110 by the tension force of the bias spring 150.
  • a current or voltage below a reference value is applied through the second lead terminal 120, a current flows through the second lead terminal 120 to the connection portion 132 of the contact operation plate 130, and the contact operation plate 130. Is connected to the first lead terminal 110, so that a current flows toward the electric / electronic device in which the circuit is formed.
  • the joule heat is generated due to the resistance value of the bias spring 150, so that the main spring 140, which is a shape memory alloy material, is elongated, and the main spring 140
  • the first plate part 136 is moved upward by the tension force, so that the connecting portion 132 of the contact operation plate 130 is moved upward to be separated from the first lead terminal 110 and electrically connected to the first lead terminal 110.
  • Short circuit Since the separation state between the connecting portion 132 of the contact operation plate 130 and the first lead terminal 110 is maintained by the extension of the main spring 140, power connection of the electrical and electronic products may be blocked.
  • the bias spring 150 When abnormal power is applied as described above, the bias spring 150 rapidly generates heat by Joule heat by the resistance of the bias spring 150 to operate (expand) the main spring 140 made of a shape memory alloy. Accordingly, the contact between the first lead terminal 110 and the connecting portion 132 of the contact operation plate 130 is separated and electrically shorted, so that the current path is passed through the second lead terminal 120.
  • the resistance of the static thermistor 160 is about several tens of m ⁇ to several ⁇ , which is higher than the value of the bias spring 150 (several m ⁇ ), but also Joule heats due to overcurrent to generate several seconds. Since the resistance value increases from several tens to several tens of ohms and becomes almost insulated, it exhibits the effect of blocking overcurrent.
  • the static characteristics thermistor 160 continuously generates the main spring 140 made of the shape memory alloy in an expanded state, so that the abnormal operation of the contact plate 130 is not solved.
  • the connecting portion 132 of the first lead terminal 110 and the contact between the connecting portion 132 of the contact operation plate 130 without maintaining the electrically shorted state is continuously maintained, it is possible to interrupt the continuous overcurrent.
  • the tension of the main spring 140 is lost and the tension of the bias spring 150 is main.
  • the first plate portion 136 is pushed downward so as to be stronger than the tension of the spring 140 so that the connecting portion 132 of the contact plate 130 is applied to the force received by the first plate portion 136.
  • the interlocking force receives downward pressing force and moves toward the first lead terminal 110 so that the first lead terminal 110 and the connecting portion 132 of the contact operation plate 130 are electrically connected to each other. Return to normal operation.
  • the tension force of the main spring 140 loses the force, thereby removing the obstacle of the return of the contact portion 132 of the contact operation plate 130, and thus the bias spring (
  • the connection part 132 of the contact operation plate 130 is returned by the tensile force of 150 to be connected to the first lead terminal 110, thereby connecting the power of the electrical and electronic product.
  • the temperature of the main spring 140 made of the shape memory alloy is also lowered, and the main spring 140 at which the temperature is lowered decreases the tensile force generated by the temperature.
  • the tension force of the spring 140 is reduced, the main spring 140 is compressed again by the tension force of the bias spring 150, so that the connection part 132 of the first lead terminal 110 and the contact operation plate 130 is Electrical connection.
  • FIG. 15 schematically illustrates a large current repetitive fuse according to a sixth embodiment.
  • the description of parts that overlap with those described in the fifth embodiment will be omitted.
  • the high current repetitive fuse includes a trigger terminal 180 disposed on the third side of the housing 100.
  • the trigger terminal 180 is inserted and positioned through the third side of the housing 100 and may be formed of a conductive material.
  • the trigger terminal 180 is arranged to be connected to the positive characteristic thermistor 160, specifically, the first electrode 162 of the positive characteristic thermistor 160.
  • the self-heating of the static thermistor 160 may cause an electrical short between the first lead terminal 110 and the second lead terminal 120.
  • some kind of remote control effect can be expected. That is, when a sensor or the like detects a danger of overheating of the surroundings or other safety of a device in a main processor or a microcomputer of various electronic devices, a signal voltage is applied from the main chip to the trigger terminal 180.
  • the trigger terminal 180 becomes a positive electrode and the second lead terminal 120 becomes a negative electrode so that the voltage difference between the trigger terminal 180 and the second lead terminal 120 becomes a signal voltage. Set this to.
  • the current is the second lead terminal 120, the first terminal connection part 126, and the first plate part 136.
  • the normal operation is performed by normally flowing to the first connection part 134, the connection part 132, and the first lead terminal 110 to maintain a resistance value (for example, several m ⁇ ) close to the conducting wire.
  • the connecting portion 132 of the contact operation plate 130 is electrically connected to the first lead terminal 110 by the tension force of the bias spring 150.
  • a current or voltage below a reference value is applied through the second lead terminal 120, a current flows through the second lead terminal 120 to the connection portion 132 of the contact operation plate 130, and the contact operation plate 130. Is connected to the first lead terminal 110, so that a current flows toward the electric / electronic device in which the circuit is formed.
  • the signal voltage (approximately 5V or less) is applied to the trigger terminal 180 from the main chip.
  • a path of a current is formed through the trigger terminal 180 to the static thermistor 160, and the static thermistor 160 generates heat due to the flow of the current.
  • the resistance of the static thermistor 160 is in the range of several tens of m ⁇ to several hundreds of ohms, but Joule heats due to the applied signal voltage, and the resistance value increases to several tens of tens to tens of ohms within a few seconds, thereby almost insulated. .
  • the main spring 140 is extended by the heat generated by the static thermistor 160, and the first plate part 136 is moved upward by the tensile force of the main spring 140 to connect the contact portion of the contact operation plate 130. 132 is moved upwards to be separated from the first lead terminal 110 and electrically shorted to the first lead terminal 110. Since the separation state between the connecting portion 132 of the contact operation plate 130 and the first lead terminal 110 is maintained by the extension of the main spring 140, power connection of the electrical and electronic products may be blocked.
  • the constant temperature thermistor 160 keeps the main spring 140 made of the shape memory alloy in an expanded state until the signal voltage through the trigger terminal 180 is blocked, the signal voltage is not blocked.
  • the connection part 132 of the contact operation plate 130 is not returned and the state where the first lead terminal 110 is connected to the connection part 132 of the contact operation plate 130 is maintained in an electrically shorted state, and continuous overcurrent blocking This becomes possible.
  • the self-heating of the static thermistor 160 becomes difficult and the static thermistor 160 naturally cools.
  • the tension of the main spring 140 is lost and the tension of the bias spring 150 is reduced.
  • the first spring portion 136 is stronger than the tensile force of the main spring 140, the first plate portion 136 receives downward pressing force, and thus the connecting portion 132 of the contact operation plate 130 receives the force received by the first plate portion 136.
  • the first lead terminal 110 and the connecting portion 132 of the contact operating plate 130 are electrically connected to each other by being pushed downward in the downward direction and connected to the first lead terminal 110. Is returned to the normal operating state.
  • connection part 132 of the contact operation plate 130 is returned by the tensile force of 150 to be connected to the first lead terminal 110, thereby connecting the power of the electrical and electronic product.
  • the temperature of the main spring 140 made of the shape memory alloy is also lowered, and the main spring 140 at which the temperature is lowered decreases the tensile force generated by the temperature.
  • the tension force of the spring 140 is reduced, the main spring 140 is compressed again by the tension force of the bias spring 150, so that the connection part 132 of the first lead terminal 110 and the contact operation plate 130 is Electrical connection.
  • FIG. 16 is a view schematically illustrating a large current repetitive fuse according to a seventh embodiment
  • FIG. 17 is an enlarged view of a front contact portion and a contact operation plate.
  • the first lead terminal 110 connected to the contact operation plate 130 is provided with a rod-shaped front contact portion 116 protruding upward to increase the contact area.
  • the connection portion 132 of the contact operation plate 130 which is a portion that is connected to the front contact portion 116, may be provided in a plate shape.
  • connection part 132 may be electrically connected to or short-circuited with the front contact part 116 of the first lead terminal 110, and may be provided in a flat plate shape.
  • the first lead terminal 110 and the second lead terminal 120 are connected or shorted as the connection portion 132 is connected or short-circuited with the first contact terminal 116 of the first lead terminal 110.
  • the high-current repeating fuse according to the present embodiment may further include a trigger terminal described in the sixth embodiment.
  • FIG. 18 is a schematic cross-sectional view of a large current repetitive fuse according to an eighth embodiment.
  • the main spring 140 and the bias spring 150 are disposed in the high-current repetitive fuse so as to extend or compress in a direction parallel to the direction in which the connecting portion 132 of the contact operation plate 130 moves.
  • the spring 140 is disposed between the static thermistor 160 and the first plate portion 136, and the bias spring 150 is a contact opposite to the main spring 140 on the first connection portion 134. It is disposed between the connecting portion 132 of the operation plate 130 and the inner wall of the housing 100.
  • the connection part 132 of the contact operation plate 130 may have a plate shape.
  • the large current repetitive fuse has a structure in which the main spring 140 and the bias spring 150 are arranged side by side, and such a structure reduces the height and preferably slims the size of the large current repetitive fuse. It is a structure suitable for applications that require a thin thickness such as lithium (Li) battery pack.
  • the first lead terminal 110 is disposed to be connected to the static thermistor 160, specifically, the first electrode 162 of the static thermistor 160.
  • the second lead terminal 120 is inserted through the second opening provided in the second side surface of the housing 100 to be electrically connected to the contact operating plate 130. More specifically, the second lead terminal 120 is connected to and electrically connected to the first plate portion 1386 of the contact operation plate 130. The second lead terminal 120 is connected to the first lead terminal 110. It is arranged to be connected to the opposite surface (second electrode 164) of the connected static characteristics thermistor 160 via the second terminal connecting portion 128.
  • the high-current repeating fuse according to the present embodiment may further include a trigger terminal described in the sixth embodiment.
  • the connecting portion 132 receives a direct force according to the stretching movement of the bias spring 150 and the first plate portion 136 receives a direct force according to the stretching movement of the main spring 140.
  • the connection part 132 is electrically interrupted, that is, electrically connected or short-circuited with the first lead terminal 110 by the expansion and contraction movement of the main spring 140 and the bias spring 150. Therefore, the first lead terminal 110 and the second lead terminal 120 are connected or shorted as the connection portion 132 is connected or short-circuited with the first lead terminal 110.
  • the main spring 140 is for electrically interrupting the connecting portion 132 of the first lead terminal 110 and the contact operation plate 130.
  • the static characteristic thermistor 160 and the first plate portion 136 are provided. It may be provided between).
  • the bias spring 150 is for electrically interrupting the connection part 132 of the first lead terminal 110 and the contact operation plate 130 together with the main spring 140, and the first connection part 134. It may be provided between the connecting portion 132 of the contact operation plate 130 and the inner wall of the housing 100 on the opposite side on which the main spring 140 is disposed. The bias spring 150 is provided between the connecting portion 132 of the contact operation plate 130 opposite to the main spring 140 on the first connection portion 134 and the inner wall of the housing 100 in a tensioned state.
  • the pressure is applied to maintain the contact portion 132 of the contact operation plate 130 and the first lead terminal 110, the bias spring 150 is compressed and the first lead when the main spring 140 is extended
  • the terminal 110 and the connection part 132 of the contact operation plate 130 may be separated from each other and electrically shorted.
  • the high current repetitive fuse is electrically connected to the first lead terminal 110 when an abnormal power source, for example, a current or voltage higher than a reference value is applied to the first lead terminal 110 or the second lead terminal 120.
  • the high current is applied to the bias spring 150 through the connected connection 132.
  • the temperature of the bias spring 150 is increased by the resistance value of the bias spring 150, and the temperature inside the housing 100 is increased.
  • the main spring 140 formed of the shape memory alloy has a shape of the main spring 140 that is tensioned according to the elevated temperature. Change.
  • the connection part 132 of the contact operation plate 130 moves upward in contact with the force received by the first plate part 136 to contact the first lead terminal 110.
  • the connecting portion 132 of the operation plate 130 is spaced apart and electrically shorted, and as a result, the first lead terminal 110 and the second lead terminal 120 are short-circuited to form the first lead terminal 110 and the second lead terminal. No current flows between the 120.
  • connection portion 132 is directly subjected to the pressing force in the downward direction and accordingly moved toward the first lead terminal 110 so that the first lead terminal 110 and the contact operation plate 130
  • the connection part 132 is electrically connected, and the high current repetitive fuse is returned to the normal operation state.
  • 19 is a schematic cross-sectional view of a large current repetitive fuse according to a ninth embodiment.
  • the contact operation plate 130 may be a conductive connection part 132, which is a part for connecting with the first lead terminal 110, a first connection part 134 connected with the connection part 132, and a first connection part.
  • a plate-shaped first plate portion 136 connected to the 134 and receiving a direct force according to the tensile force of the main spring 140, a second connection portion 137 and a second connection portion connected to the first plate portion 136
  • a plate-shaped second plate portion 138 connected to 137 and subjected to a direct force according to the tension of the bias spring 150.
  • the support block 170 serves to support the second lead terminal 120
  • the second lead terminal 120 is the second plate portion 138 opposite to the portion connected to the second connection portion 137.
  • the large current repetitive fuse has a structure in which the main spring 140 and the bias spring 150 are arranged side by side, and such a structure reduces the height and preferably slims the size of the large current repetitive fuse. It is a structure suitable for applications that require a thin thickness such as lithium (Li) battery pack.
  • the first lead terminal 110 is disposed to be connected to the static thermistor 160, specifically, the first electrode 162 of the static thermistor 160.
  • the second lead terminal 120 is inserted through the second opening provided in the second side surface of the housing 100 to be electrically connected to the contact operating plate 130. More specifically, the second lead terminal 120 is connected to and electrically connected to the second plate portion 138 of the contact operation plate 130. The second lead terminal 120 is disposed to be connected to the opposite surface (second electrode 164) of the static thermistor 160 to which the first lead terminal 110 is connected through the second terminal connector 128.
  • the high-current repeating fuse according to the present embodiment may further include a trigger terminal described in the sixth embodiment.
  • the first plate portion 136 is forced by the stretching movement of the main spring 140
  • the second plate portion 138 is forced by the stretching movement of the bias spring 150
  • the main spring 140 Is disposed between the static thermistor 160 and the first plate portion 136
  • the bias spring 150 is the second plate portion opposite the main spring 140 is disposed relative to the second connection portion 137 It is disposed between the 138 and the inner wall of the housing 100
  • the connection portion 132 is electrically connected to the first lead terminal 110 in conjunction with the force received by the first plate portion 136 and the second plate portion 138. Connected or short-circuited.
  • the first plate portion 136 receives direct force due to the expansion and contraction movement of the main spring 140, and the second plate portion 138 directly follows the expansion movement of the bias spring 150. Receive strength.
  • the connecting portion 132 is electrically interrupted, that is, electrically connected or short-circuited with the first lead terminal 110 by the stretching movement of the main spring 140 and the bias spring 150. Therefore, the first lead terminal 110 and the second lead terminal 120 are connected or shorted as the connection portion 132 is connected or short-circuited with the first lead terminal 110.
  • the main spring 140 is for electrically interrupting the connecting portion 132 of the first lead terminal 110 and the contact operation plate 130.
  • the static characteristic thermistor 160 and the first plate portion 136 are provided. It may be provided between).
  • the bias spring 150 is to electrically interrupt the connection part 132 of the first lead terminal 110 and the contact operation plate 130 together with the main spring 140, and the second connection part 137. It may be provided between the second plate portion 138, which is the opposite side on which the main spring 140 is disposed, and the inner wall of the housing 100. The bias spring 150 is provided between the second plate portion 138 on the opposite side where the main spring 140 is disposed with respect to the second connection portion 137 and the inner wall of the housing 100 in a tensioned state. Pressure is applied to the connection part 132 of the 130 to maintain the connection with the first lead terminal 110, when the main spring 140 is extended, the bias spring 150 is compressed to the first lead terminal 110 And the connection part 132 of the contact operation plate 130 may be electrically shorted.
  • the high current repetitive fuse is electrically connected to the first lead terminal 110 when an abnormal power source, for example, a current or voltage higher than a reference value is applied to the first lead terminal 110 or the second lead terminal 120.
  • the high current is applied to the bias spring 150 through the connection part 132, the first connection part 134, the first plate part 136, the second connection part 137, and the second plate part 138.
  • the temperature of the bias spring 150 is increased by the resistance value of the bias spring 150, and the temperature inside the housing 100 is increased.
  • the main spring 140 formed of the shape memory alloy has a shape of the main spring 140 that is tensioned according to the elevated temperature. Change. That is, when the main spring 140 is in a tensioned shape, the first plate portion 136 of the contact operation plate 130 is pressed upward by the tension force of the main spring 140. In this way, when the main spring 140 is tensioned, the connection part 132 of the contact operation plate 130 moves upward in association with the force received by the first plate part 136 to move the first lead terminal 110 and the contact operation plate.
  • the connecting portions 132 of the 130 are electrically shorted to be spaced apart, and as a result, the first lead terminal 110 and the second lead terminal 120 are shorted so that the first lead terminal 110 and the second lead terminal 120 are shorted. There is no current flow between).
  • connection portion 132 is stronger than the tension force of the spring 140 to receive a pressing force downward, and thus moves toward the first lead terminal 110, the connection portion of the first lead terminal 110 and the contact operating plate 130 ( 132 is electrically connected, and the high current repetitive fuse is returned to the normal operating state.
  • the present invention has industrial applicability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuses (AREA)
  • Thermally Actuated Switches (AREA)
PCT/KR2012/010453 2011-12-08 2012-12-05 대전류용 반복형 퓨즈 WO2013085265A1 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201280060365.2A CN103975410A (zh) 2011-12-08 2012-12-05 大电流用自复型保险丝
JP2014540974A JP2014533423A (ja) 2011-12-08 2012-12-05 大電流用反復型ヒューズ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2011-0130731 2011-12-08
KR1020110130731A KR101220283B1 (ko) 2011-12-08 2011-12-08 대전류용 반복형 퓨즈

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WO2013085265A1 true WO2013085265A1 (ko) 2013-06-13

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KR (1) KR101220283B1 (zh)
CN (1) CN103975410A (zh)
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WO (1) WO2013085265A1 (zh)

Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
TW201628040A (zh) * 2015-01-16 2016-08-01 yi-xiang Wang 內建突波吸收及斷路結構之開關模組
KR101755102B1 (ko) * 2015-06-23 2017-07-06 주식회사 만도 브릿지 어셈블리
TWI611451B (zh) * 2015-07-23 2018-01-11 Wang Yi Xiang 內建突波吸收及斷路結構之開關模組
KR101884601B1 (ko) * 2016-03-21 2018-08-02 조인셋 주식회사 탄성을 갖는 서미스터 어셈블리
JP7029784B2 (ja) * 2017-10-17 2022-03-04 内橋エステック株式会社 保護素子
CN111739770B (zh) * 2020-07-15 2022-04-12 国网甘肃省电力公司兰州供电公司 一种二次送电的自复熔断器
CN115483076B (zh) * 2021-06-16 2024-01-19 南京泉峰科技有限公司 一种适用于电池包的保险丝装置、电池包及电动工具

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090038070A (ko) * 2007-10-15 2009-04-20 이종호 전류퓨즈 기능을 겸비한 용융형 온도퓨즈
KR100912215B1 (ko) * 2008-07-25 2009-08-14 (주)엠에스테크비젼 반복 퓨즈
KR20090094601A (ko) * 2008-03-03 2009-09-08 (주)엠에스테크비젼 반복형 퓨즈

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5654729A (en) * 1979-10-10 1981-05-14 Susumu Ubukata Thermal protector for three phase
JPS59180346U (ja) * 1983-05-18 1984-12-01 株式会社村田製作所 自己保持スイツチ
JPH02227927A (ja) * 1989-03-01 1990-09-11 Mitsubishi Electric Corp 摺動接触装置
JPH03122934A (ja) * 1989-09-28 1991-05-24 T Tsuai James 回路保護装置
JP3692544B2 (ja) * 1993-07-29 2005-09-07 株式会社村田製作所 自己保持型過電流保護装置
KR100190448B1 (ko) 1995-12-22 1999-06-01 전주범 형상기억합금을 이용한 수온 스위치
JP3797629B2 (ja) * 1996-02-20 2006-07-19 日本碍子株式会社 限流型遮断器
JP3589174B2 (ja) * 2000-10-24 2004-11-17 株式会社村田製作所 表面実装型正特性サーミスタおよびその実装方法
JP2006092988A (ja) * 2004-09-27 2006-04-06 Matsushita Electric Ind Co Ltd 自己復帰型保護素子
JP4521725B2 (ja) * 2005-03-17 2010-08-11 エヌイーシー ショット コンポーネンツ株式会社 感温ペレット型温度ヒューズ
JP4908042B2 (ja) 2006-04-06 2012-04-04 三菱電機株式会社 回路遮断装置
US7326887B1 (en) * 2006-12-13 2008-02-05 Sensata Technologies, Inc. Modified reset motor protector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090038070A (ko) * 2007-10-15 2009-04-20 이종호 전류퓨즈 기능을 겸비한 용융형 온도퓨즈
KR20090094601A (ko) * 2008-03-03 2009-09-08 (주)엠에스테크비젼 반복형 퓨즈
KR100912215B1 (ko) * 2008-07-25 2009-08-14 (주)엠에스테크비젼 반복 퓨즈

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TW201337997A (zh) 2013-09-16
KR101220283B1 (ko) 2013-01-21
CN103975410A (zh) 2014-08-06
JP2014533423A (ja) 2014-12-11

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