WO2009125458A1 - 外部操作型サーマルプロテクタ - Google Patents
外部操作型サーマルプロテクタ Download PDFInfo
- Publication number
- WO2009125458A1 WO2009125458A1 PCT/JP2008/003777 JP2008003777W WO2009125458A1 WO 2009125458 A1 WO2009125458 A1 WO 2009125458A1 JP 2008003777 W JP2008003777 W JP 2008003777W WO 2009125458 A1 WO2009125458 A1 WO 2009125458A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- terminal
- polymer ptc
- main body
- temperature
- terminals
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H37/5418—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting using cantilevered bimetallic snap elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/12—Means for adjustment of "on" or "off" operating temperature
- H01H37/14—Means for adjustment of "on" or "off" operating temperature by anticipatory electric heater
Definitions
- the present invention relates to a thermal protector for preventing overheating of an electrical product or the like. More specifically, the polymer PTC can be operated not only in an automatic operation but also in a forced operation from the outside and in a safe state in which no hot spot is generated. It relates to the built-in thermal protector.
- protection elements in power circuits were often self-recovering bimetal protectors and non-automatic recovery types using fusible materials such as temperature fuses and current fuses, but fuses, protectors and heating resistors A combination of these is also frequently used.
- Resistors are mainly built in cement resistors, while fuses are mainly used, a fusible body and a resistor are built in a plate and mounted on a printed circuit board. Yes.
- protective elements are used not only for the purpose of interrupting or detecting abnormal current but also forcibly interrupting current by energizing a resistor.
- Protection devices typified by general protectors avoid changes in temperature and current in order to avoid dangers such as abnormal temperature in the surroundings and overheating such as overheating caused by excessive current flow. The condition is set so that it operates automatically in response.
- conditions are set for overheating protection when, for example, 150 ° C. or more is dangerous, or overload protection that requires interruption at a current of 20 A or more. If these abnormalities are temporary, it is necessary that the protector be an automatic return type.
- a non-automatic return type protection element such as a fuse
- a manual reset type or a self-holding type is used as a protector.
- an externally operated thermal protector is suitable as a protector that can intentionally actuate the protective element to avoid danger and return the system to a state where it can be reused after confirming safety.
- PTC Platinum Coefficient
- Ceramic PTC is expensive, but its shape is stable against changes in heat, so that it has an advantage that it can be easily incorporated into a protector body as a component.
- the fact that the shape of the heating resistor is stable without any change due to heat means that the heating resistor must be firmly pressed down from above and below in order to effectively use heat conduction when incorporated into the protector body. Can be incorporated.
- the amount of current used is small and the circuit configuration is often low-priced. It is convenient if an inexpensive polymer PTC that operates with low resistance can be used.
- Polymer PTC is made by dispersing conductive particles such as carbon particles in an insulating synthetic resin, and the principle of current interruption is well known. That is, electricity flows through a conductive path formed through conductive particles at room temperature, but at high temperatures, volume expansion occurs due to thermal expansion near the melting point of the synthetic resin. The electrical connection is cut off, the internal resistance increases rapidly, and the current is greatly reduced.
- the volume expansion due to heat is important as described above, and when the volume expansion is restrained or the polymer PTC main body is compressed and deformed by a strong pressure even in the current interruption state. , Current concentration occurs locally and thermal runaway (hot spot) occurs.
- the present invention is a method for safely incorporating a polymer PTC so as not to restrict its volume expansion, and by incorporating the polymer PTC into a protector in this manner, it is smaller, safer, and can be restored.
- Another object is to provide an external operation type thermal protector with good operability.
- an external operation type thermal protector is a protector that cuts off an electric circuit by a bimetallic element that reacts to the ambient temperature and reverses the direction of warping at a predetermined temperature.
- a movable contact is provided at an opposing position, and has a spring property that allows the movable contact to exert a predetermined contact contact pressure.
- the end opposite to the free end is fixed to the main body casing via an insulating member.
- a movable plate whose free end side is displaced by reversal of the bimetal element, a second terminal for external connection connected to the movable plate, a resistance element module, and an internal resistor and the internal resistor of A polymer PTC having electrodes on the respective surfaces; first and second terminal plates soldered to the electrodes on both sides of the polymer PTC; and the electrode surfaces integrally with the first and second terminal plates, respectively.
- First and second connecting portions extending in parallel with each other, and the first connecting portion is connected to the second terminal at the end opposite to the free end of the movable plate.
- the main body casing formed by a resistance element module in which the first terminal plate is fixed to the main body casing via the movable plate and the insulating member, and the second connection portion of the resistance element module A third terminal for external connection outside, and the second terminal plate is provided with a gap for absorbing volume expansion due to heat generation of the polymer PTC between the inner wall of the main body casing. Placed, the resistance of the polymer PTC suddenly The trip temperature is set to be higher than the inversion operating temperature of the bimetal element, and when current is supplied to the second and third terminals, the polymer PTC is forced to trip and heats the bimetal element. And the power supply between the first and second terminals is cut off.
- This external operation type thermal protector cuts off the current between the first and second terminals and then maintains the energization to the second and third terminals to cause the polymer PTC to generate heat at a constant temperature.
- the current interruption operation between the first and second terminals is continuously maintained.
- the externally operated thermal protector sets, for example, a trip temperature at which the resistance of the polymer PTC suddenly changes to be lower than an operating temperature of the bimetal element, and supplies a current to the second and third terminals to polymer PTC. Forcibly tripping and heating the bimetal element at a constant temperature, the overload protection current in a low-temperature atmosphere so as to cut off the overcurrent flowing between the first and second terminals. It can be configured to correct the time characteristics.
- the external operation type thermal protector includes, for example, an internal contact circuit between the first and second terminals by connecting the first terminal and the third terminal outside the main body housing.
- a connection of the polymer PTC in parallel may be additionally configured so that the self-holding operation is performed when the first and second terminals are disconnected by overheating or overcurrent.
- an external operation type thermal protector includes a main body case, a bimetal element that reacts to ambient temperature and reverses the warping direction at a predetermined temperature, and the bimetal element in the longitudinal direction of the main body case.
- Engage at both corresponding ends have a movable contact on the free end side, and have a spring property that exerts a predetermined contact contact pressure on the movable contact, and an insulating member on the end opposite to the free end side
- a movable plate that is fixed to the main body housing and whose free end side is displaced by the inversion of the bimetal element, a second terminal for external connection connected to the movable plate, and a first resistance element module
- a first polymer PTC having electrodes on both sides of the internal resistor and the internal resistors, and first and second terminals soldered to the electrodes on both sides of the first polymer PTC, respectively.
- a first resistance element module connected to the second terminal and fixing the first terminal plate to the main body housing via the movable plate and the insulating member; and the first resistance element module A third terminal for external connection outside the main body housing formed by the second connection portion, and a second resistance element module, on both surfaces of the internal resistor and the internal resistor
- the second polymer PTC having electrodes, the third and fourth terminal plates soldered to the electrodes on both sides of the second polymer PTC, and the third and fourth terminal plates, respectively.
- Each of the second electrodes extends in parallel with the electrode surface. And a fourth connecting portion, wherein the third connecting portion is connected to the second terminal at an end opposite to the free end of the movable plate, and the third terminal plate is connected to the movable plate. And a second resistance element module fixed to the main body casing via the insulating member, and the movable contact within the main body casing on the fourth connection portion of the second resistance element module.
- a third terminal for external connection outside the main body housing formed by a fixed contact formed at a corresponding position and a portion of the fourth connection portion extending from the position where the fixed contact is formed
- the second terminal plate is disposed with a gap for absorbing volume expansion due to heat generation of the first polymer PTC between the second terminal plate and the inner wall surface of the main body casing, and the fourth terminal
- the board is located between the inner wall surface of the main body casing and the inner wall surface facing it.
- a trip temperature at which the resistance of the first polymer PTC suddenly changes is set higher than the reversal operation temperature of the bimetal element, and is disposed with a gap for absorbing volume expansion due to heat generation of the second polymer PTC.
- the trip temperature at which the resistance of the second polymer PTC suddenly changes is set higher than the return temperature of the bimetal bare hand, and when the current is supplied to the second and third terminals, the first polymer PTC is forcibly forced.
- the bimetal element is heated to operate in a trip state, and the energization between the first and second terminals is cut off. After the current is cut off, the bimetallic element is heated at the heat generation temperature of the second polymer PTC. It is configured to prevent the return and maintain the shut-off state.
- This external operation type thermal protector has, for example, a rated voltage of the second polymer PTC of at least 48V, a nominal resistance value equal to or less than 1/2 of the load resistance, and a voltage across the current after interruption of 30V or less, preferably 24V or less, the rated voltage of the first polymer PTC is set within a range not exceeding the second polymer PTC, and a current is passed through the second and third terminals so that the first polymer PTC is
- the bimetal element is forcibly reversed to operate in a trip state to cut off the direct current between the first and second terminals, and after the cutoff, the bimetal element is restored at the heat generation temperature of the second polymer PTC. It can also be configured to prevent this and maintain a shut-off state.
- the external operation type thermal protector connects the first terminal and the third terminal outside the main body housing to connect the second polymer PTC in parallel with the first polymer PTC. It may be configured to function as a self-holding type that cuts off the current with a higher DC high voltage by connecting to and lowering the combined resistance of the first and second polymer PTCs.
- the polymer PTC can be safely built-in so that the resistor does not run out of heat, the bimetal protector can be operated by the heat of the resistor, and the operation state can be maintained at a constant temperature. It is possible to provide a greatly improved externally operated thermal protector.
- FIG. 1A It is a perspective view which shows the resistance element module used for the external operation type
- FIG. 1A It is a top view of FIG. 1A.
- FIG. 2 is a cross-sectional view taken along the line AA ′ of FIG. 1B. It is a perspective top view which shows the external operation type
- FIG. 2A It is a sectional side view of FIG. 2A. It is a circuit wiring diagram of the external operation type thermal protector shown in FIG. 2A and FIG. 2B. It is a perspective view which shows the 1st resistance element module used for the external operation type thermal protector of Example 2.
- FIG. 2B It is a sectional side view of FIG. 2A. It is a circuit wiring diagram of the external operation type thermal protector shown in FIG. 2A and FIG. 2B. It is a perspective view which shows the 1st resistance element module used for the external operation type thermal protector of Example 2.
- FIG. 3A It is a sectional side view of FIG. 3A. It is a perspective view which shows a 2nd resistance element module.
- FIG. 3B is a cross-sectional view taken along the line BB ′ of FIG. 3C.
- FIG. 4A It is a perspective top view which shows the external operation type
- FIG. 4B is a circuit wiring diagram of the external operation type thermal protector shown in FIGS. 4A and 4B.
- FIG. 4B is a circuit wiring diagram of the external operation type thermal protector shown in FIGS. 4A and 4B.
- FIG. 1A is a perspective view showing a resistance element module used in the externally operated thermal protector according to the first embodiment.
- FIG. 1B is a plan view of FIG. 1A.
- 1C is a cross-sectional view taken along the line AA ′ of FIG. 1B.
- the resistance element module 1 shown in FIGS. 1A, 1B, and 1C includes a polymer PTC 2, a first terminal plate 4, and a second terminal plate 5.
- the polymer PTC2 as a resistance element is composed of an internal resistor 3 and thin layered electrode foils 3a and 3b respectively attached to the upper and lower surfaces of the internal resistor 3, and is formed into a plate-like body as a whole. Is formed.
- the first terminal board 4 is soldered to one electrode foil 3b of the upper and lower electrodes of the internal resistor 3.
- the first terminal plate 4 includes a first connecting portion that is integral with the first terminal plate 4 and extends outward from the internal resistor 3 in parallel with the surface of the electrode foil 3 b of the internal resistor 3. 4-1.
- the second terminal plate 5 is soldered to the other electrode foil 3a of the internal resistor 3.
- the second terminal plate 5 includes a second connecting portion that is integral with the second terminal plate 5 and extends outwardly from the internal resistor 3 in parallel with the surface of the electrode foil 3 a of the internal resistor 3. 5-1.
- the plate-like polymer PTC2 is formed with a hole 6 penetrating the internal resistor 3 and the electrode foils 3a and 3b on both sides in the thickness direction of the plate-like body.
- the hole 6 has a substantially rectangular shape in the drawing, the hole 6 may be, for example, a round shape, a triangular shape, or a polygonal shape having a square shape or more, and the shape of the hole 6 is not limited.
- the first terminal plate 4 is formed with a hole 7 having a diameter smaller than that of the hole 6 in a portion overlapping the hole 6.
- the first terminal plate 4 is formed by deforming the peripheral portion 4-2 of the hole 7 having a smaller diameter than the hole 6 by caulking the upper portion of the column by caulking, so that the first terminal plate 4 is fixed to the fixed side end of the movable plate described later. And fixed together with the second terminal for external connection.
- the entire resistance element module 1 has the fixed side end portion of the movable plate. Via the main body casing.
- the second terminal plate 5 is formed with a hole 8 at least equal in diameter or larger than the hole 6 in a portion overlapping the hole 6. Further, the second connection portion 5-1 is used for external connection when the resistance element module 1 is incorporated in the main body housing of the external operation type thermal protector as an element of the external operation type thermal protector described later. A third terminal is formed.
- FIG. 2A shows a resistance element module 1 composed of a polymer PTC2, a first terminal plate 4, and a second terminal plate 5 incorporated in a main body housing of an external operation type thermal protector, and the external operation type thermal of this example. It is a perspective top view which shows the state which the protector was completed.
- FIG. 2B is a cross-sectional side view of FIG. 2A.
- FIG. 2C is a circuit wiring diagram of the externally operated thermal protector shown in FIGS. 2A and 2B.
- 2A and 2B the same components as those shown in FIGS. 1A, 1B, and 1C are denoted by the same reference numerals as those in FIGS. 1A, 1B, and 1C.
- the external operation type thermal protector 10 (hereinafter simply referred to as the protector 10) shown in FIGS. 2A and 2B is an insulating material that seals a box-shaped case 11 and an opening (right end in the figure) of the case 11.
- casing 13 formed with the property filler 12 is provided inside the main body housing 13, there are provided a bimetal 14 as a thermally responsive element that reverses at a predetermined temperature, and a conductive movable plate 15.
- the movable plate 15 holds a movable contact 16 on the free end side (left side in the figure), and a claw portion 15-1 is formed on the free end side end.
- the movable plate 15 has a spring property that allows the movable contact 16 to exert a predetermined contact contact pressure. In a normal state, as shown in FIG. 2B, the movable contact 16 is fixed to the fixed contact 18 with the predetermined contact contact pressure. Is pressed.
- the other bimetal 14 has one end (right end in the figure) together with the fixed side end of the movable plate 15, the fixed portion 17-1 of the second terminal 17, and the resistance element module 1 (FIGS. 1A, 1B, FIG. 1C) and the first caulking portion 19-1 on the upper side of the insulating support member 19 is deformed by caulking and is secured to the bottom surface of the main body housing 13.
- the fixed side end of the movable plate 15 and the first terminal plate 4 of the resistance element module 1 (that is, the electrode foil 3b under the polymer PTC2) are both connected to the second terminal 17. Yes.
- the other end (left end portion in the figure) of the bimetal 14 is engaged with the claw portion 15-1 of the movable plate 15.
- the movable plate 15 can be operated at any time in cooperation with the reversing operation of the bimetal 14.
- a polymer PTC2 in which the electrode foil 3b below the resistance element module 1 is exposed is arranged close to the upper half of the whole from the center of the bimetal 14 to the fixed end side.
- the heat generation is conducted to the fixed end of the bimetal 14 via the first terminal plate 4 and the fixing portion 17-1 of the second terminal 17. Further, heat is transmitted to the half of the fixed end side of the bimetal 14 by radiation and convection in the main body housing 13, and the heat can be efficiently transmitted to the bimetal 14 as a whole. .
- the trip temperature at which the resistance of the internal resistor 3 of the polymer PTC 2 changes suddenly is set to be higher than the inversion operation temperature of the bimetal 14.
- the resistance element module 1 is fixed to the bottom surface of the main body housing 13 by caulking the lower first terminal plate 4.
- the resistance element module 1 is disposed between the upper second terminal plate 5 and the upper inner wall surface of the main body housing 13 with a gap h that absorbs volume expansion due to heat generation of the polymer PTC 2.
- the second connection portion 5-1 extending from the second terminal plate 5 forms the third terminal as an external connection portion as it is outside the main body housing 13. That is, the upper electrode foil 3a of the polymer PTC2 is connected to the third terminal 5-1.
- x marks a, b, and c indicate the welded portion between the movable plate connecting terminal portion and the second terminal 17, and the welded portion between the first connecting portion 4-1 and the second terminal 17, respectively.
- a welded portion between the second terminal 17 and the external connection wiring 21 is shown. This ensures each connection.
- a fixed conductor 22 having the above-mentioned fixed contact 18 on one end side is positioned by the insulating support member 19 and fixed to the bottom surface of the main body casing 13 inside the main body casing 13.
- the end side of the fixed conductor 22 provided with the fixed contact 18 further extends to the outside of the main body housing 13 to form a first terminal 23 for connection to an external circuit.
- the x mark d shown in FIGS. 2A and 2B indicates a welded portion between the first terminal 23 and the external connection wiring 24. This ensures both connections.
- the protector 10 having the above-described configuration shown in FIGS. 2A, 2B, and 2C, if a sufficient current is applied to the second terminal 5-1 and the third terminal 17 by an external operation, the polymer PTC2 is forcedly After a short period of time, it eventually becomes tripped, and thereafter a constant high temperature is maintained with a small current.
- this temperature is set to be higher than the temperature at which the bimetal 14 performs the reverse operation, the bimetal 14 is eventually heated to perform the reverse operation.
- the free end side of the movable plate 15 moves upward, and the movable contact 16 leaves the fixed contact 18 and opens the contact. Thereby, the interruption
- the bimetal 14 When the polymer PTC2 is continuously energized, the bimetal 14 is kept in a disconnected state because the bimetal 14 continues to be heated. In this case, unlike a self-holding protector in which a resistor is connected in parallel to the contact circuit, there is no leakage current to the contact circuit even if the self-holding state is maintained, and this interruption is maintained in a complete interruption state. can do.
- the protector does not operate even if the polymer PTC2 generates heat at a constant temperature due to external energization.
- the time for current interruption by the protector changes depending on the ambient temperature, if the operation characteristics within the specified time are required due to overcurrent, such as a circuit breaker or overload protection device, the characteristics are specified. Difficult to do.
- the operation time will be longer and it may be dangerous.
- the polymer PTC2 can be energized to keep the inside of the protector at a certain high temperature, and the operating time can be adjusted to correspond to the operating conditions when the ambient temperature is relatively high. It becomes.
- FIGS. 2A, 2B, and 2C Modified Example of Embodiment 1
- the first terminal 23 and the third terminal 5-1 are connected to the outside of the protector by the wiring 25 as shown in FIG. 2C.
- it can also be used as a general self-holding protector having a resistor in parallel with the contact circuit.
- 3A and 3B are views showing a first resistance element module used in the externally operated thermal protector according to the second embodiment, and are reprinted from FIGS. 1A and 1C.
- FIG. 3C is a perspective view showing a second resistance element module used in the external operation type thermal protector of the second embodiment
- FIG. 3DD is a cross-sectional view taken along the line BB ′.
- FIG. 4A is a perspective plan view showing an externally operated thermal protector 29 (hereinafter simply referred to as protector 29) of Example 2 completed by incorporating two resistance element modules in the main body housing, and FIG. Sectional drawing and FIG. 4C are the circuit wiring diagrams.
- FIG. 3A, FIG. 3B, FIG. 4A, FIG. 4B, and FIG. 4C have the same components as FIG. 1A, FIG. 1B, FIG. 1C and FIGS. 2A, 2B, and 2C are assigned the same numbers.
- the resistance element module 1 shown in FIGS. 1A and 1B is employed as the first resistance element module having the first polymer PTC. Therefore, here, as for the first resistance element module 1, only necessary portions are renumbered and description thereof is omitted, and the second resistance element module 30 having the second polymer PTC will be described.
- the second resistive element module 30 includes an internal resistor 31 and electrode foils 31a and 31b on both surfaces of the internal resistor 31, respectively.
- a second polymer PTC 32 is provided.
- the second resistance element module 30 includes a third terminal plate 33 and a fourth terminal plate 34 soldered to the electrode foils 31a and 31b on both surfaces of the second polymer PTC 32, respectively.
- a third connecting portion 33-1 and a fourth connecting portion 34-1 which are integrally extended from the terminal plate 33 and the fourth terminal plate 34 and extended in parallel with the surfaces of the electrode foils 31a and 31b, respectively. ing.
- a hole 35 is formed through the internal resistor 31 and the electrode foils 31a and 31b on both sides in the thickness direction of the plate-like body.
- the shape of the hole 35 may be, for example, a rectangular shape, a round shape, a triangular shape, or a polygonal shape having a square shape or more, and the shape is not limited.
- the fourth terminal plate 34 is formed with a hole 35b having a diameter equal to or larger than that of the hole 35 in a portion overlapping the hole 35. Further, the third terminal plate 33 is formed with a rectangular hole 36 having a smaller diameter than the hole 35 in a portion overlapping the hole 35.
- the third terminal plate 33 has a peripheral portion 33 of a hole 36 having a diameter smaller than that of the hole 35 when the second resistance element module 30 is incorporated in the main body housing 13 of the protector 29. 2 is deformed by caulking the lower portion 37-1 of the support column 37, and is fixed by being connected to the lower side of the fixed side end of the movable plate 15.
- the fixed-side end of the movable plate 15 is connected to the first connection portion 4-1 of the resistance element module 1 (the first resistance element module 1 of the present example) together with a first end for external connection. 2 terminal 17 is connected.
- the third terminal plate 33 of the second resistance element module 30 of the present example is the first connection portion 4-1 of the first resistance element module 1, that is, the second 1 is connected to the electrode foil 3 b of the polymer PTC 2 and the second terminal 17.
- connection portion 33-1 which is a lead portion of the third terminal plate 33 and the second terminal 17. Thereby, the connection between the connection portion 33-1 and the second terminal 17 is ensured.
- the x marks f and g shown on the right side of FIG. 4B together with the above x marks e indicate the same contents as the x marks a, b, and c shown in FIG. 1B.
- a fixed contact is placed on the fourth connection portion 34-1 which is an extension of the fourth terminal plate 34 of the second resistance element module 30 at a position corresponding to the movable contact 16 inside the main body housing 13. 38 is formed.
- a portion extending from the position where the fixed contact 38 of the fourth connection portion 34-1 is formed forms a first terminal 34-2 for external connection with the external wiring 39 outside the main body housing 13. Yes.
- An x mark i shown on the left side of FIG. 4B indicates a welded portion between the first terminal 34-2 and the external wiring 39. This ensures the connection between the first terminal 34-2 and the external wiring 39.
- the second terminal plate 5 is heated between the inner wall surface (upper inner wall surface) of the main body housing 13 and the first polymer PTC2. It is arranged with a gap h that absorbs the volume expansion due to.
- the fourth terminal plate 34 is not clearly seen in the figure between the upper inner wall surface (lower inner wall surface) and the upper inner wall surface of the main body housing 13, but the volume due to the heat generated by the second polymer PTC 30. A gap for absorbing expansion is provided.
- the trip temperature at which the resistance of the first polymer PTC 2 suddenly changes is set higher than the inversion operation temperature of the bimetal 14.
- the trip temperature at which the resistance of the second polymer PTC 30 changes abruptly is set higher than the return temperature of the bimetal 14.
- the hole is not necessary, and the fixed end of the terminal plate and the movable plate is not required. It is sufficient if there is a guide part that aligns the position with the.
- the assembling process of the protector 10 or 29 can be performed also by such several methods.
- the protector incorporating two resistors such as the polymer PTC, after energizing a predetermined current between the second and third terminals and forcibly operating the protector, Even if the current between the second and third terminals is stopped, it is possible to maintain a self-holding state of current interruption between the first and second terminals.
- an electrical condition for sufficient heat generation of the second polymer PTC is assumed.
- the power supply voltage is about DC48V to DC60V
- the resistance of the first polymer PTC is equal to or about 1/2 of the load resistance
- the voltage across the second polymer PTC after being cut off is preferably 30 V or less and preferably limited to 24 V or less, a sufficiently large current can be cut off.
- the external operation function cannot be used, but the first and second polymer PTCs can be connected in parallel.
- the resistance value becomes smaller, and a larger current can be cut off.
- the protector of the present invention the following operations and effects can be obtained by safely incorporating the polymer PTC and taking out one of the terminals outside the protector for external operation.
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermally Actuated Switches (AREA)
- Thermistors And Varistors (AREA)
Abstract
Description
一般的なプロテクタに代表される保護装置は、周囲の温度異常、過大な電流が流れることによる過熱等の過熱状態により部材が溶断するような危険を回避するため、これらの温度や電流の変化に応じて自動的に作動するように条件設定がなされている。
2 抵抗素子(ポリマPTC)
3 内部抵抗体
3a、3b 電極箔
4 第1の端子板
4-1 第1の接続部
4-2 小径の孔の周囲部
5 第2の端子板
5-1 第2の接続部(第3の端子)
6 孔
7 小径の孔
8 同径以上の孔
10 外部操作型サーマルプロテクタ
11 箱状のケース
12 絶縁性充填材
13 本体筐体
14 バイメタル
15 可動板
15-1 爪部
16 可動接点
17 第2の端子
17-1 固定部
18 固定接点
19 絶縁支柱部材
19-1 上部の加締め部
21 外部接続配線
22 固定導体
23 第1の端子
24 外部接続配線
25 配線
29 外部操作型サーマルプロテクタ(プロテクタ)
30 第2の抵抗素子モジュール
31 内部抵抗体
31a、31b 電極箔
32 第2のポリマPTC
33 第3の端子板
33-1 第3の接続部
33-2 小径の孔の周囲部
34 第4の端子板
34-1 第4の接続部
34-2 第1の端子
35 孔
35b 孔
36 直方形の孔
37 支柱
37-1 下部
38 固定接点
39 外部配線
<実施例1>
図1Aは、実施例1の外部操作型サーマルプロテクタに用いられ抵抗素子モジュールを示す斜視図である。図1Bは図1Aの平面図である。図1Cは図1BのA-A´断面矢視図である。
本例において、抵抗素子としてのポリマPTC2は、内部抵抗体3と、その内部抵抗体3の上下の面にそれぞれ貼着された薄層状の電極箔3a及び3bから成り、全体として板状体に形成されている。
なお、図2A、図2Bには、図1A、図1B、図1Cに示した構成部分と同一の構成部分には図1A、図1B、図1Cと同一の番号を付与して示している。
抵抗素子モジュール1は、上述したように、下部の第1の端子板4をカシメ付けられて本体筐体13の底面に固定されている。そして、抵抗素子モジュール1は、上部の第2の端子板5と本体筐体13の上部内壁面との間にポリマPTC2の発熱による体積膨張を吸収する間隙hを設けて配置されている。
図2A、図2B、図2Cに示す上記構成のプロテクタ10において、外部操作により第2の端子5-1と第3の端子17に外部から十分な電流が通電されると、ポリマPTC2が強制的に発熱し、やがてトリップ状態となり、以降少ない電流で一定の高い温度を保つことになる。
図2A、図2B、図2Cに示す構成において、図2Cに示すように、第1の端子23と第3の端子5-1とを配線25によりプロテクタ外部で接続することにより、接点回路と並列に抵抗体を有する一般的な自己保持型のプロテクタとして使用することもできる。
<実施例2>
図3A、図3Bは実施例2の外部操作型サーマルプロテクタに用いられる第1の抵抗素子モジュールを示す図であり、図1A及び図1Cの再掲である。図3Cは同じく実施例2の外部操作型サーマルプロテクタに用いられる第2の抵抗素子モジュールを示す斜視図、図3DDはそのB-B´断面矢視図である。
したがって、ここでは、第1の抵抗素子モジュール1については、必要な部分についてのみ番号を再掲して説明は省略し、第2のポリマPTCを有する第2の抵抗素子モジュール30について説明する。
図4A、図4Bに示す配置構成において、第2の端子板5は、図1Bで述べたように、本体筐体13の内壁面(上部内壁面)との間に第1のポリマPTC2の発熱による体積膨張を吸収する間隙hを設けて配置されている。
第2には、意図した動作後に、動作状態を容易に保持でき、不具合が解消できた段階でシステムの再使用が可能となる。
第4には、その他、トリップ温度とバイメタルの動作温度で様々な活用方法がある。
Claims (7)
- 周囲温度に反応して反り返り方向を所定温度で反転するバイメタル素子により電気回路を遮断するプロテクタに於いて、
本体筐体と、
一端に固定接点を備える固定導体と、
該固定導体の端部に形成され上記本体筐体の外部において外部回路に接続するための第1の端子と、
自由端側の上記固定接点と対向する位置に可動接点を備え、該可動接点に所定の接点接触圧を発揮させるバネ性を有し、上記自由端側とは反対側端部を絶縁部材を介して上記本体筐体に固定され、上記バイメタル素子の反転により上記自由端側が変位する可動板と、
該可動板に接続される外部接続のための第2の端子と、
抵抗素子モジュールであって、
内部抵抗体と、該内部抵抗体の両面にそれぞれ電極を有するポリマPTCと、該ポリマPTCの上記両面の電極にそれぞれ半田付けされた第1及び第2の端子板と、該第1及び第2の端子板から一体にそれぞれ上記電極面と平行に引き出されて延在する第1及び第2の接続部を備え、上記第1の接続部を上記可動板の上記自由端側とは反対側端部で上記第2の端子に接続され、上記第1の端子板を上記可動板及び上記絶縁部材を介して上記本体筐体に固定された抵抗素子モジュールと、
該抵抗素子モジュールの上記第2の接続部により形成された上記本体筐体の外部における外部接続のための第3の端子と、
を備え、
上記第2の端子板は、上記本体筐体の内壁との間に上記ポリマPTCの発熱による体積膨張を吸収する間隙を設けて配置され、
上記ポリマPTCの抵抗が急変するトリップ温度は上記バイメタル素子の反転動作温度よりも高く設定され、
上記第2と第3の端子に電流が通電されたとき上記ポリマPTCが強制的にトリップ状態になって上記バイメタル素子を加熱して動作させ、上記第1と第2の端子間の通電が遮断される、
ことを特徴とする外部操作型サーマルプロテクタ。 - 上記第1と第2の端子間の電流を遮断した後、上記第2と第3の端子への通電を維持して上記ポリマPTCを一定温度で発熱させ、上記第1と第2の端子間の電流遮断動作を維持し続ける、
ことを特徴とする請求項1記載の外部操作型サーマルプロテクタ。 - 上記ポリマPTCの抵抗が急変するトリップ温度を上記バイメタル素子の動作温度よりも低く設定し、
上記第2と第3の端子に電流を通電しポリマPTCを強制的にトリップ状態として上記バイメタル素子を一定温度で加熱させることにより、
上記第1と第2の端子間に流れる過電流で遮断動作させるように低温の雰囲気における過負荷保護のための電流と時間の特性を補正する、
ことを特徴とする請求項1記載の外部操作型サーマルプロテクタ。 - 上記第1の端子と第3の端子を上記本体筐体の外部で接続することにより、上記第1と第2の端子間の内部の接点回路と並列な上記ポリマPTCの接続を追加構成し、上記第1と第2の端子間が過熱又は過電流で遮断動作したとき自己保持動作を行う、
ことを特徴とする請求項1記載の外部操作型サーマルプロテクタ。 - 本体筐体と、
周囲温度に反応して反り返り方向を所定温度で反転するバイメタル素子と、
該バイメタル素子の上記本体筐体の長手方向に対応する両端部で係合し、自由端側に可動接点を備え、該可動接点に所定の接点接触圧を発揮させるバネ性を有し、上記自由端側とは反対側端部を絶縁部材を介して上記本体筐体に固定され、上記バイメタル素子の反転により上記自由端側が変位する可動板と、
該可動板に接続された外部接続のための第2の端子と、
第1の抵抗素子モジュールであって、
内部抵抗体と、該内部抵抗体の両面にそれぞれ電極を有する第1のポリマPTCと、該第1のポリマPTCの上記両面の電極にそれぞれ半田付けされた第1及び第2の端子板と、該第1及び第2の端子板から一体にそれぞれ上記電極面と平行に引き出されて延在する第1及び第2の接続部を備え、上記第1の接続部を上記可動板の上記自由端側とは反対側端部で上記第2の端子に接続され、上記第1の端子板を上記可動板及び上記絶縁部材を介して上記本体筐体に固定された第1の抵抗素子モジュールと、
該第1の抵抗素子モジュールの上記第2の接続部により形成された上記本体筐体の外部における外部接続のための第3の端子と、
第2の抵抗素子モジュールであって、
内部抵抗体と、該内部抵抗体の両面に電極を有する第2のポリマPTCと、該第2のポリマPTCの上記両面の電極にそれぞれ半田付けされた第3及び第4の端子板と、該第3及び第4の端子板から一体にそれぞれ上記電極面と平行に引き出されて延在する第3及び第4の接続部を備え、上記第3の接続部を上記可動板の上記自由端側とは反対側端部で上記第2の端子に接続され、上記第3の端子板を上記可動板及び上記絶縁部材を介して上記本体筐体に固定された第2の抵抗素子モジュールと、
該第2の抵抗素子モジュールの上記第4の接続部上に上記本体筐体の内部において上記可動接点に対応する位置に形成された固定接点と、
上記第4の接続部の上記固定接点が形成された位置より延長する部分により形成された上記本体筐体の外部における外部接続のための第3の端子と、
を備え、
上記第2の端子板は、上記本体筐体の内壁面との間に上記第1のポリマPTCの発熱による体積膨張を吸収する間隙を設けて配置され、
上記第4の端子板は、上記本体筐体の上記内壁面と対向する内壁面との間に上記第2のポリマPTCの発熱による体積膨張を吸収する間隙を設けて配置され、
上記第1のポリマPTCの抵抗が急変するトリップ温度は上記バイメタル素子の反転動作温度よりも高く設定され、
上記第2のポリマPTCの抵抗が急変するトリップ温度は上記バイメタル素手の復帰温度よりも高く設定され、
上記第2と第3の端子に電流が通電されたとき上記第1のポリマPTCが強制的にトリップ状態になって上記バイメタル素子を加熱して動作させ、上記第1と第2の端子間の通電が遮断し、該電流の遮断後は上記第2のポリマPTCの発熱温度で上記バイメタル素子の復帰を妨げて遮断状態を維持する、
ことを特徴とする外部操作型サーマルプロテクタ。 - 上記第2のポリマPTCの
定格電圧を少なくとも48V、
公称抵抗値を負荷抵抗と同等若しくは1/2以下、
上記電流遮断後の両端電圧を30V以下好ましくは24V以下とし、
上記第1のポリマPTCの
定格電圧を上記第2のポリマPTCを超えない範囲で設定し、
上記第2と第3の端子に電流を通電して上記第1のポリマPTCを強制的にトリップ状態として上記バイメタル素子を反転動作させて上記第1と第2の端子間の直流電流を遮断動作させ、
該遮断後に上記第2のポリマPTCの発熱温度で上記バイメタル素子が復帰することを妨げて遮断状態を維持する、
ことを特徴とする請求項5記載の外部操作型サーマルプロテクタ。 - 上記第1の端子と上記第3の端子を上記本体筐体の外部で接続することにより上記第2のポリマPTCを上記第1のポリマPTCと並列に接続し、上記第1及び第2のポリマPTCの合成抵抗を下げることにより、より大きな直流高電圧で電流を遮断する自己保持型としても機能する、
ことを特徴とした請求項5記載の外部操作型サーマルプロテクタ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010507068A JP5174893B2 (ja) | 2008-04-10 | 2008-12-16 | 外部操作型サーマルプロテクタ |
CN2008801284978A CN101983411B (zh) | 2008-04-10 | 2008-12-16 | 外部操作型热保护器 |
DE112008003792.2T DE112008003792B4 (de) | 2008-04-10 | 2008-12-16 | Temperaturschalter |
US12/933,202 US8519816B2 (en) | 2008-04-10 | 2008-12-16 | External operation thermal protector |
US13/619,567 US8749341B2 (en) | 2008-04-10 | 2012-09-14 | External operation thermal protector |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-102657 | 2008-04-10 | ||
JP2008102657 | 2008-04-10 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/933,202 A-371-Of-International US8519816B2 (en) | 2008-04-10 | 2008-12-16 | External operation thermal protector |
US13/619,567 Division US8749341B2 (en) | 2008-04-10 | 2012-09-14 | External operation thermal protector |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009125458A1 true WO2009125458A1 (ja) | 2009-10-15 |
Family
ID=41161603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/003777 WO2009125458A1 (ja) | 2008-04-10 | 2008-12-16 | 外部操作型サーマルプロテクタ |
Country Status (5)
Country | Link |
---|---|
US (2) | US8519816B2 (ja) |
JP (1) | JP5174893B2 (ja) |
CN (1) | CN101983411B (ja) |
DE (1) | DE112008003792B4 (ja) |
WO (1) | WO2009125458A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013001931A1 (ja) * | 2011-06-28 | 2013-01-03 | ウチヤ・サーモスタット株式会社 | モータプロテクタ |
JP2014107175A (ja) * | 2012-11-28 | 2014-06-09 | Otsuka Techno Kk | ブレーカとこのブレーカを使用するパック電池、及び温度スイッチ |
US8749341B2 (en) | 2008-04-10 | 2014-06-10 | Uchiya Thermostat Co., Ltd. | External operation thermal protector |
JP6021645B2 (ja) * | 2010-12-16 | 2016-11-09 | Littelfuseジャパン合同会社 | 保護デバイス |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009095961A1 (ja) * | 2008-01-28 | 2009-08-06 | Uchiya Thermostat Co., Ltd. | サーマルプロテクタ |
US8941461B2 (en) | 2011-02-02 | 2015-01-27 | Tyco Electronics Corporation | Three-function reflowable circuit protection device |
US9455106B2 (en) * | 2011-02-02 | 2016-09-27 | Littelfuse, Inc. | Three-function reflowable circuit protection device |
US9923362B2 (en) * | 2011-12-27 | 2018-03-20 | Littelfuse, Inc. | Protective device |
CN104103632A (zh) * | 2013-04-10 | 2014-10-15 | 李博 | 自保护晶体管 |
TWI625754B (zh) | 2013-07-02 | 2018-06-01 | Tyco Electronics Japan G K | Protective member |
CN105336552A (zh) * | 2014-08-08 | 2016-02-17 | 上海神沃电子有限公司 | 电路保护器及其生产方法 |
JP6502366B2 (ja) * | 2014-09-09 | 2019-04-17 | Littelfuseジャパン合同会社 | 保護素子 |
CN105479941B (zh) | 2014-10-01 | 2019-05-28 | 精工爱普生株式会社 | 液体喷出装置、张力施加方法 |
CA2962872C (en) | 2014-10-10 | 2023-02-21 | Nestec S.A. | Non-meat food products having appearance and texture of cooked meat |
CN105743851B (zh) * | 2014-12-09 | 2019-06-21 | 阿里巴巴集团控股有限公司 | 业务处理方法、装置及业务服务器 |
US10707475B2 (en) | 2015-12-18 | 2020-07-07 | Bourns, Inc. | Battery housing |
US11552368B2 (en) | 2017-02-01 | 2023-01-10 | 24M Technologies, Inc. | Systems and methods for improving safety features in electrochemical cells |
WO2018183828A1 (en) | 2017-03-31 | 2018-10-04 | 24M Technologies, Inc. | Overcharge protection of batteries using current interrupt devices |
WO2019027901A1 (en) * | 2017-07-31 | 2019-02-07 | 24M Technologies, Inc. | CURRENT INTERRUPTING DEVICES USING SHAPE MEMORY MATERIALS |
US10854869B2 (en) | 2017-08-17 | 2020-12-01 | 24M Technologies, Inc. | Short-circuit protection of battery cells using fuses |
US10827562B2 (en) | 2017-12-13 | 2020-11-03 | Albert Chi Man Ao | Heat sensitive electrical safety device |
CN112335118B (zh) | 2018-06-22 | 2023-01-10 | 伯恩斯公司 | 电路断路器 |
JP2022551801A (ja) | 2019-08-27 | 2022-12-14 | ボーンズ、インコーポレイテッド | 電池パック用一体型熱遮断装置付きコネクタ |
JP7396042B2 (ja) * | 2019-12-27 | 2023-12-12 | Tdk株式会社 | 電子部品装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5169069U (ja) * | 1974-11-28 | 1976-06-01 | ||
JPH09204861A (ja) * | 1996-01-29 | 1997-08-05 | Uchiya Thermostat Kk | サーマルプロテクタ |
JP2002204525A (ja) * | 2000-12-28 | 2002-07-19 | Sanyo Electric Co Ltd | ブレーカとブレーカを内蔵するパック電池 |
JP2006121049A (ja) * | 2004-09-03 | 2006-05-11 | Tyco Electronics Corp | 酸素バリアコーティングを有する電気デバイス |
Family Cites Families (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3223808A (en) * | 1963-09-25 | 1965-12-14 | Portage Electric Prod Inc | Precalibrated thermostatic switches |
US3443259A (en) * | 1967-05-16 | 1969-05-06 | Portage Electric Prod Inc | Creepless snap-acting thermostatic switch |
US3840834A (en) * | 1972-12-18 | 1974-10-08 | Texas Instruments Inc | Protector/indicator using ptc heater and thermostatic bimetal combination |
DE2853776A1 (de) * | 1978-12-13 | 1980-06-26 | Eaton Gmbh | Temperaturabhaengiges elektrisches stromregel- oder -begrenzungsschaltelement fuer elektrische geraete, insbesondere elektrisch beheizte geraete |
US4262273A (en) * | 1979-11-29 | 1981-04-14 | Emerson Electric Co. | Thermostatic electrical switch |
DE3234373A1 (de) * | 1982-09-16 | 1984-05-10 | Peter 7530 Pforzheim Hofsäss | Vorrichtung zum temperatur- und/oder stromabhaengigen schalten einer elektrischen verbindung |
DE3644514A1 (de) * | 1986-12-24 | 1988-07-07 | Inter Control Koehler Hermann | Bimetallschalter |
US4755787A (en) * | 1987-12-07 | 1988-07-05 | Portage Electric Products, Inc. | Means for mounting a bimetal blade in a thermostatic switch |
US4878038A (en) * | 1987-12-07 | 1989-10-31 | Tsai James T | Circuit protection device |
US4894634A (en) * | 1988-10-19 | 1990-01-16 | Texas Instruments Incorporated | Switch device |
JP2585148B2 (ja) * | 1991-04-05 | 1997-02-26 | ウチヤ・サーモスタット株式会社 | フィルム状発熱体内蔵型サーモスタット |
GB9109316D0 (en) * | 1991-04-30 | 1991-06-19 | Otter Controls Ltd | Improvements relating to electric switches |
JP2844026B2 (ja) * | 1991-06-14 | 1999-01-06 | ウチヤ・サーモスタット株式会社 | サーモスタット |
US5103202A (en) * | 1991-10-02 | 1992-04-07 | Gte Products Corporation | Ambient compensated circuit breaker |
DE4206157A1 (de) * | 1992-02-28 | 1993-09-16 | Hofsass P | Thermoschalter |
JPH05282977A (ja) * | 1992-03-30 | 1993-10-29 | Texas Instr Japan Ltd | 過電流保護装置 |
JPH07282701A (ja) * | 1994-04-05 | 1995-10-27 | Texas Instr Japan Ltd | 自己保持型保護装置 |
JP2733499B2 (ja) * | 1994-12-09 | 1998-03-30 | ウチヤ・サーモスタット株式会社 | サーモスタット |
JP2791384B2 (ja) * | 1994-12-09 | 1998-08-27 | ウチヤ・サーモスタット株式会社 | サーモスタット |
JP2899550B2 (ja) * | 1995-08-30 | 1999-06-02 | ウチヤ・サーモスタット株式会社 | サーマルプロテクタ |
DE19727197C2 (de) * | 1997-06-26 | 1999-10-21 | Marcel Hofsaess | Temperaturabhängiger Schalter mit Kontaktbrücke |
US5844464A (en) * | 1997-11-24 | 1998-12-01 | Therm-O-Disc, Incorporated | Thermal switch |
DE19752581C2 (de) * | 1997-11-27 | 1999-12-23 | Marcel Hofsaes | Schalter mit einem temperaturabhängigen Schaltwerk |
JPH11260220A (ja) * | 1998-03-13 | 1999-09-24 | Uchiya Thermostat Kk | サーマルプロテクタ |
US5936510A (en) * | 1998-05-22 | 1999-08-10 | Portage Electric Products, Inc. | Sealed case hold open thermostat |
DE19847209C2 (de) * | 1998-10-13 | 2002-04-25 | Marcel Hofsaes | Schalter mit einem Isolierstoffträger |
DE19847208C2 (de) | 1998-10-13 | 2002-05-16 | Marcel Hofsaes | Schalter mit einem Isolierstoffträger |
US6020807A (en) * | 1999-02-23 | 2000-02-01 | Portage Electric Products, Inc. | Sealed case hold open thermostat |
JP3820055B2 (ja) * | 1999-04-16 | 2006-09-13 | ウチヤ・サーモスタット株式会社 | サーマルプロテクタ |
JP3825583B2 (ja) | 1999-06-25 | 2006-09-27 | ウチヤ・サーモスタット株式会社 | 感熱遮断装置および電池パック |
JP3756700B2 (ja) * | 1999-07-22 | 2006-03-15 | ウチヤ・サーモスタット株式会社 | サーマルプロテクタ |
US6633222B2 (en) * | 2000-08-08 | 2003-10-14 | Furukawa Precision Engineering Co., Ltd. | Battery breaker |
JP2004014434A (ja) * | 2002-06-11 | 2004-01-15 | Uchiya Thermostat Kk | 直流電流遮断スイッチ |
KR200296482Y1 (ko) * | 2002-08-27 | 2002-11-23 | 텍사스 인스트루먼트 코리아 주식회사 | 밀봉 구조의 과부하 보호기 |
US6995647B2 (en) * | 2003-12-03 | 2006-02-07 | Texas Instruments Incorporated | Low current electric motor protector |
US7326887B1 (en) | 2006-12-13 | 2008-02-05 | Sensata Technologies, Inc. | Modified reset motor protector |
WO2009125458A1 (ja) | 2008-04-10 | 2009-10-15 | ウチヤ・サーモスタット株式会社 | 外部操作型サーマルプロテクタ |
-
2008
- 2008-12-16 WO PCT/JP2008/003777 patent/WO2009125458A1/ja active Application Filing
- 2008-12-16 US US12/933,202 patent/US8519816B2/en active Active
- 2008-12-16 DE DE112008003792.2T patent/DE112008003792B4/de active Active
- 2008-12-16 JP JP2010507068A patent/JP5174893B2/ja active Active
- 2008-12-16 CN CN2008801284978A patent/CN101983411B/zh active Active
-
2012
- 2012-09-14 US US13/619,567 patent/US8749341B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5169069U (ja) * | 1974-11-28 | 1976-06-01 | ||
JPH09204861A (ja) * | 1996-01-29 | 1997-08-05 | Uchiya Thermostat Kk | サーマルプロテクタ |
JP2002204525A (ja) * | 2000-12-28 | 2002-07-19 | Sanyo Electric Co Ltd | ブレーカとブレーカを内蔵するパック電池 |
JP2006121049A (ja) * | 2004-09-03 | 2006-05-11 | Tyco Electronics Corp | 酸素バリアコーティングを有する電気デバイス |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8749341B2 (en) | 2008-04-10 | 2014-06-10 | Uchiya Thermostat Co., Ltd. | External operation thermal protector |
JP6021645B2 (ja) * | 2010-12-16 | 2016-11-09 | Littelfuseジャパン合同会社 | 保護デバイス |
EP2654158A4 (en) * | 2010-12-16 | 2017-11-15 | Littelfuse Japan G.K. | Protective device |
WO2013001931A1 (ja) * | 2011-06-28 | 2013-01-03 | ウチヤ・サーモスタット株式会社 | モータプロテクタ |
JPWO2013001931A1 (ja) * | 2011-06-28 | 2015-02-23 | ウチヤ・サーモスタット株式会社 | モータプロテクタ |
US9030787B2 (en) | 2011-06-28 | 2015-05-12 | Uchiya Thermostat Co., Ltd. | Motor protector |
JP2014107175A (ja) * | 2012-11-28 | 2014-06-09 | Otsuka Techno Kk | ブレーカとこのブレーカを使用するパック電池、及び温度スイッチ |
Also Published As
Publication number | Publication date |
---|---|
DE112008003792T5 (de) | 2011-02-24 |
CN101983411B (zh) | 2013-04-24 |
US8749341B2 (en) | 2014-06-10 |
US20130015944A1 (en) | 2013-01-17 |
CN101983411A (zh) | 2011-03-02 |
JPWO2009125458A1 (ja) | 2011-07-28 |
US20110043321A1 (en) | 2011-02-24 |
JP5174893B2 (ja) | 2013-04-03 |
US8519816B2 (en) | 2013-08-27 |
DE112008003792B4 (de) | 2022-08-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5174893B2 (ja) | 外部操作型サーマルプロテクタ | |
CN103069670B (zh) | 热过载保护装置 | |
KR101116087B1 (ko) | 보호 장치 | |
JP2001035332A (ja) | 接続端子及び回路遮断装置 | |
JP3798194B2 (ja) | 回路遮断装置 | |
JP5274013B2 (ja) | 電気複合素子 | |
JP2002015648A (ja) | 回路遮断装置 | |
US20100073120A1 (en) | Thermal fuse for use in electric modules | |
JP2001052584A (ja) | 回路遮断装置 | |
KR20160029082A (ko) | 보호 디바이스 | |
JP2001068000A (ja) | 回路遮断装置 | |
KR20160035588A (ko) | 보호 디바이스 | |
JP2009036056A (ja) | 密閉形電動圧縮機 | |
JP2010211928A (ja) | 遮断板付spd | |
JP3568817B2 (ja) | 回路遮断装置 | |
KR102481793B1 (ko) | 온도 퓨즈 및 이를 구비한 인쇄회로기판 | |
KR100996773B1 (ko) | 온도 보호 소자 | |
JP2000215769A (ja) | 回路遮断装置 | |
JP2010086675A (ja) | 二重の感温遮断を行なう回路保護構造 | |
JP4905947B2 (ja) | 保護装置 | |
JP2011181362A (ja) | 保護素子 | |
JP2001023493A (ja) | 回路遮断装置 | |
JP2006179842A (ja) | 金属酸化物バリスタ故障時の切り離し雷防護装置 | |
JP5258843B2 (ja) | 警報回路 | |
JP2007317420A (ja) | 非復帰型保護装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200880128497.8 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08873804 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2010507068 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12933202 Country of ref document: US |
|
RET | De translation (de og part 6b) |
Ref document number: 112008003792 Country of ref document: DE Date of ref document: 20110224 Kind code of ref document: P |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 08873804 Country of ref document: EP Kind code of ref document: A1 |