CN101728120A - Dual temperature sensing cutoff circuit protective device - Google Patents
Dual temperature sensing cutoff circuit protective device Download PDFInfo
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- CN101728120A CN101728120A CN200810167626A CN200810167626A CN101728120A CN 101728120 A CN101728120 A CN 101728120A CN 200810167626 A CN200810167626 A CN 200810167626A CN 200810167626 A CN200810167626 A CN 200810167626A CN 101728120 A CN101728120 A CN 101728120A
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- 230000009977 dual effect Effects 0.000 title claims abstract description 23
- 230000001681 protective effect Effects 0.000 title abstract 2
- 230000006698 induction Effects 0.000 claims abstract description 17
- 238000002844 melting Methods 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 9
- 239000004020 conductor Substances 0.000 claims description 52
- 229910000743 fusible alloy Inorganic materials 0.000 claims description 36
- 239000002184 metal Substances 0.000 claims description 6
- 238000013021 overheating Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 239000011888 foil Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 238000005452 bending Methods 0.000 abstract 1
- 230000001012 protector Effects 0.000 description 7
- 230000005611 electricity Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 208000037170 Delayed Emergence from Anesthesia Diseases 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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Abstract
The invention discloses a dual temperature sensing cutoff circuit protective device. Two independently-operating temperature sensing cutoff devices, i.e. a thermal induction tripping device and a hot melting breaking device, are arranged between two terminals of a circuit loop; the cutoff is realized by the deformation by being heated and reverse bending tripping of a contact spring of the thermal induction tripping device under the condition that the current is overloaded, the circuit is overheated or the ambient temperature is overhigh; or because the current is overloaded, the circuit is overheated or the ambient temperature is overhigh, when the thermal induction tripping device has no reaction and slow reaction or repeated cutoff and electrifying, and the temperature of the circuit loop continuously rises, the cutoff can be realized after the easily-melt alloy of the hot melting breaking device is melt and broken by being heated to form an open circuit of the circuit loop. The two independently-operating temperature breaking devices respectively and independently sense the temperature, have dual temperature sensing breaking functions and enable the circuit to be cut off in a short time, be electrified again or completely cut off so as to avoid the danger caused by the circuit overheat or short circuit.
Description
Technical Field
The present invention relates to a circuit protection device, and more particularly to a circuit protection device with dual temperature sensing power-off
Background
The use of electricity is a ring that modern human society cannot lack, and various electric products and equipment surround life, especially computerized, information-based industry, home, transportation, education, entertainment and the like, and is not even more energy-free. In contrast, safe use of electricity is also a precaution that modern people cannot take.
Generally, a main switch for controlling a power supply is provided in a circuit loop for supplying power, and usually, the main switch is in an ON (ON) state, and a fuse or an interrupter is provided thereon, and when an excessive current is applied to an electric appliance used in the circuit loop, or a circuit is short-circuited or overheated, the fuse is blown or the interrupter is tripped to form an OFF (OFF) state of the circuit loop.
In addition, there are also separate circuit loops in the whole circuit loop, and there is a switch in the circuit loop for control, the switch mainly executes two actuating strokes of power-ON (ON) and power-OFF (OFF) of the separate current loop, in order to enhance the safety of power consumption, many switches also have the function of automatic trip and power-OFF when the current is overloaded and overheated, avoid the danger that the fuse or the power-OFF device of the whole circuit loop can not respond to the real-time power-OFF or trip and the wire is ON fire when the current is overloaded.
In addition to the above-mentioned overall circuit loop and individual circuit loops, the current overload and overheat automatic tripping and power-off structure using fuse, breaker and switch, some single electronic and electric products, such as: the circuit protection device of the temperature sensing breaker is respectively arranged on the high-price electronic product, the information equipment for processing data or the electric heating appliance with higher power consumption, so as to protect the single electronic and electric products, and the circuit protection device can sense and break the power in real time when the current of the single electronic and electric products is overloaded and the circuit is overheated, thereby avoiding burning the product, and simultaneously avoiding the problem that other electric equipment in the circuit loop and the whole circuit loop cannot operate due to the current overload and overheating conditions of the respective circuit loop and the whole circuit loop caused by the problems of the single electronic and electric products.
As shown in fig. 1 and 2, a contact spring 101 is disposed in a circuit, the contact spring 101 is bent and deformed and reversely bent to bounce after being heated, one end of the contact spring is fixedly assembled with a first terminal 102, the other end of the contact spring 101 is a free end, the free end is assembled with a first conductive point 103, a second terminal 104 is fixedly assembled with a second conductive point 105, and the second conductive point 105 corresponds to the first conductive point 103; in practice, the contact spring 101 is bent towards the second terminal 104, so that the first conductive point 103 at the free end of the contact spring 101 and the second conductive point 105 of the second terminal 104 are kept in a contact circuit connection state, as shown in fig. 1; when the current is overloaded, the contact spring 101 is deformed by heat and reversely bent to bounce, so that the first conductive point 103 and the second conductive point 105 at the free end of the contact spring 101 are separated to form a circuit breaking (OFF) state, as shown in fig. 2, which can ensure that the circuit of the electronic product itself is prevented from being burnt. However, the disadvantages of the existing temperature sensing power-off protector are:
(a) when the contact spring 101 is manufactured, it is not possible to ensure that the thickness, the curvature and the structural characteristics of each contact spring 101 are completely the same, so it is difficult to effectively control the reaction temperature value of the contact spring 101 that deforms after being heated and bends and bounces in the reverse direction, and the error of the set induced temperature value is large.
(b) The contact spring 101 is deformed and reversely bent after being heated, and the sensitivity of the contact spring is not high, so that the protection of the electronic product in overload and overheating can not be timely exerted.
(c) The contact spring 101 cannot be tripped or disconnected in real time or tripped incompletely, so that the circuit is still in a current conducting state, and the circuit is continuously overheated to cause danger of the electronic product and the whole circuit.
When the current overload circuit is overheated, if the contact elastic sheet 101 is in a half-trip state, the contact elastic sheet 101 is in a power-on state again when cooled, and the contact elastic sheet is continuously and repeatedly powered on and off to form sparks, so that danger is caused; and the electronic and electric equipment in the whole current loop is repeatedly powered on and off to cause current instability, so that the electronic and electric equipment is crashed or cannot normally operate, the service life is shortened, and even the electronic and electric equipment is completely damaged.
Disclosure of Invention
The invention aims to solve various problems that the existing temperature sensing power-off protector only has a trip power-off device which takes a contact spring piece as temperature sensing, cannot effectively set a power-off sensing temperature value, and when the current is overloaded and overheated, if the contact spring piece cannot trip in real time, trip is incomplete or cannot trip, a circuit is continuously conducted or repeatedly powered on and off to generate sparks, so that the current is unstable, an electronic product is shut down, normal operation cannot be performed, the service life is shortened, and even the electronic product is completely damaged.
In order to solve the above problems, the present invention provides a circuit protection device with dual temperature sensing power-off functions, which comprises a cover, a thermal sensing trip device, a thermal fuse circuit-breaking device, and a base;
the cover body is a conductor and is connected with a first terminal;
the thermal induction tripping device comprises a contact spring and a conductive connecting part; the contact spring sheet is a metal sheet body with elasticity, is formed into a curved arc shape, can jump to two side surfaces of the sheet body, can deform and reversely bend when being heated and bounce to the other side surface, one end of the contact spring sheet is fixedly combined with the cover body, and the free end of the contact spring sheet is provided with a first conductive point; the conductive connecting part is in a plate shape, and the upper side surface of the conductive connecting part is provided with a second conductive point which corresponds to the first conductive point;
the hot melting circuit breaking device comprises a conductor, a fusible alloy and a second terminal; the electric conductor is an elastic body, one end of the electric conductor is fixedly contacted with the electric conduction connecting part of the thermal induction tripping device and is electrically communicated with the electric conduction connecting part, the other end of the electric conductor is a free end, the free end of the electric conductor is kept in a downward state under the state of not being subjected to external force, and the free end of the electric conductor is separated from the second terminal; the fusible alloy is connected with the free end of the electric conductor and the second terminal to form electric connection, and the free end of the electric conductor accumulates elastic force separated from the second terminal;
the seat body is provided with a containing groove; the conductive connecting part, the electric conductor and the fusible alloy are embedded in the accommodating groove;
in a normal state, the first conductive point and the second conductive point of the contact elastic sheet of the thermal induction tripping device are kept in contact to form a circuit loop communication state; when the current is overloaded, the circuit is overheated or the using environment temperature is overhigh, the contact elastic sheet of the thermal induction tripping device is heated to deform and reversely bend and trip, so that the first conductive point is separated from the second conductive point, the circuit is in an open circuit state, and after the contact elastic sheet is cooled, the contact elastic sheet deforms and reversely bends again, the first conductive point contacts with the second conductive point, and a reconnection state of the circuit is formed;
furthermore, in the state of current overload, circuit overheating or over-high ambient temperature in use, if the thermal induction tripping device fails to trip in real time or cannot trip and is powered off, the fusible alloy of the thermal fuse tripping device is continuously heated and continuously heated, and after the set temperature is reached, the fusible alloy is melted, and the free end and the second terminal are separated by the elastic force accumulated by the conductor per se, so that the complete power-off state of the circuit loop is formed.
The contact elastic sheet of the thermal induction tripping device is a composite metal sheet.
The electric conductor of the hot melting circuit breaking device is an elastic sheet-shaped body.
The fusible alloy of the hot melting circuit breaking device is punched at the end part by external force, and the two end parts of the fusible alloy are expanded and shortened outwards, so that the free end of the electric conductor is contacted with the second terminal to form electric connection;
the second terminal is fixed, and the free end of the conductor is pulled toward the second terminal by the fusible alloy, so that the free end of the conductor accumulates elastic force for separating from the second terminal.
The fusible alloy of the thermal fuse circuit breaker device is connected with the free end of the conductor and the second terminal in a welding mode to form electrical connection.
The free end of the conductor of the hot melting circuit breaking device is provided with a joint, and the second terminal is provided with a joint; the junction of the free end of the conductor and the junction of the second terminal are connected by a fusible alloy to form an electrical connection.
The side of the seat body is provided with a clamping groove, and the second terminal is fixedly clamped in the clamping groove of the seat body.
The circuit protection device with double temperature sensing power-OFF has the advantages that the circuit protection device can respectively sense the temperature independently through the two independent temperature sensing circuit-breaking devices when the current is overloaded or the circuit is overheated, so that the circuit loop is completely powered OFF (OFF), the double temperature sensing circuit-breaking effects are achieved, and the power utilization safety is ensured.
When the current is overloaded, the circuit is overheated or the environmental temperature is overhigh, the contact elastic sheet of the thermal induction tripping device is heated to deform and reversely bend and trip to cut OFF the power (OFF), the fusible block body of the thermal cutoff device is not required to be broken to achieve the power (OFF) of the circuit loop, so the overload factor of the circuit loop is eliminated, the contact elastic sheet returns to the power (ON) state after being cooled, the circuit protection device can be continuously used, a circuit protector is not required to be newly arranged, the time is saved, and the expenditure of a user is reduced.
When the temperature is continuously raised due to the fact that the thermal induction tripping device is not reacted or is repeatedly powered OFF (OFF) and powered ON (ON) when the current is overloaded or the circuit is overheated, the thermal induction tripping device is further melted when the fusible alloy of the thermal cutoff device is heated and can be continuously heated and melted, the fusible alloy is melted when the temperature reaches a set temperature critical value, the circuit loop is completely disconnected (OFF), the safety electricity is ensured, and various electrical appliances in the circuit loop are protected.
Drawings
Fig. 1 is a combined cross-sectional view of a prior art temperature-sensitive power-off protector, showing the ON state of the prior art temperature-sensitive power-off protector.
Fig. 2 is a combined cross-sectional view of a prior art temperature-sensitive power-OFF protector, showing a trip power-OFF (OFF) state of the prior art temperature-sensitive power-OFF protector.
Fig. 3 is an exploded perspective view of a dual temperature sensing power-off circuit protection device according to an embodiment of the present invention.
Fig. 4 is a perspective assembly view of the circuit protection device with dual temperature sensing power-off according to the embodiment of the invention.
Fig. 5 is a schematic top view of the dual temperature-sensing power-down circuit protection device without a cover according to the embodiment of the present invention, showing a conducting (ON) state of the dual temperature-sensing power-down circuit protection device according to the embodiment of the present invention.
Fig. 6 is a combined cross-sectional view of the dual temperature sensing power-down circuit protection device according to the embodiment of the present invention, showing the ON (ON) state of the dual temperature sensing power-down circuit protection device according to the embodiment of the present invention.
Fig. 7 is a combined cross-sectional view of a dual temperature sensing power-down circuit protection device according to an embodiment of the present invention, showing a trip power-down (OFF) schematic of a general state of the dual temperature sensing power-down circuit protection device according to an embodiment of the present invention.
Fig. 8 is a schematic top view of the dual temperature-sensing power-OFF circuit protection device without a cover according to the embodiment of the present invention, which shows that when the thermal sensing trip device is not tripped in time or cannot trip the power-OFF circuit in the dual temperature-sensing power-OFF circuit protection device according to the embodiment of the present invention, the fusible alloy of the thermal fuse circuit breaker device is heated to melt and break, so as to form a complete power-OFF (OFF) of the circuit loop.
Detailed Description
In order to fully reveal the objects, features and advantages of the invention, reference will now be made to the following detailed description of the preferred embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 3 to 6 are an exploded perspective view, an assembled perspective view, a schematic top view without a cover, and an assembled cross-sectional view according to an embodiment of the present invention. The invention relates to a circuit protection device with double temperature sensing power-off, which comprises a cover body 10, a thermal sensing tripping device 20, a hot melting circuit breaking device 30 and a base body 40; wherein,
the cover 10 is an electrical conductor and is connected to a first terminal 11.
The thermal trip device 20 comprises a contact spring 21 and a conductive connecting part 22; the contact spring 21 is a metal sheet with elasticity, it is formed into curved arc, can jump to the two sides of the sheet body, the contact spring 21 will deform and bend reversely and bounce to another side when heated, the contact spring 21 can be a composite metal sheet, one end of the contact spring 21 is fixedly combined with the inside of the aforesaid cover 30, the free end of the contact spring 21 is assembled with the first conducting point 211; the conductive connection portion 22 is substantially a plate, and a second conductive point 221 is disposed on an upper side surface of the conductive connection portion, wherein the second conductive point 221 corresponds to the first conductive point 211. The conductive connection portion 22 has a notch 222 and at least one connection hole 223.
The thermal fuse circuit breaker 30 comprises an electrical conductor 31, a fusible alloy 32, a second terminal 33; the conductive body 31 is an elastic body with good elastic force, and the conductive body 31 in this embodiment is generally an elastic sheet-shaped body; at least two protruding pieces 310 extend from one end (left end) of the conductive body 31, a clamping slot 311 is formed between the protruding pieces 310, the protruding pieces 310 are in fixed contact with and electrically connected to the conductive connection portion 22 of the thermal trip device 20, the other end of the conductive body 31 is a free end 312, and the free end is provided with a joint 313, in this embodiment, the joint 313 is a through hole, but may also be a notch. In a state of not receiving an external force, the free end 312 of the conductor 31 is kept in a downward state, that is, the free end 312 of the conductor 31 is separated from the second terminal 33; the fusible alloy 32 is substantially a strip; the second terminal 33 has a joint 331, in this embodiment, the joint 331 is a through hole, but may also be a notch. The fusible alloy 32 connects the joint 313 of the free end 312 of the conductor 31 and the joint 331 of the second terminal 33, and electrically connects the free end 312 of the conductor 31 and the second terminal 33. In the present embodiment, the end of the fusible alloy 32 is pressed by external force, so that the end of the fusible alloy 32 is expanded and shortened outward, and the joint 313 of the conductive body 31 and the joint 331 of the second terminal 33 are forced to contact each other and electrically connected; the fusible alloy 32 may be soldered to the joint 313 of the conductor 31 and the joint 331 of the second terminal 33 by soldering to electrically connect them. Since the second terminal 33 is fixed, the free end 312 of the conductor 31 is pulled toward the second terminal 33 by the fusible alloy 32, and a resilient force separating from the second terminal 33 is accumulated at the free end 312 of the conductor 31, and when the engaging force of the fusible alloy 32 is lost, the free end 312 of the conductor 31 separates from the second terminal 33 by the accumulated resilient force.
The base 40 has a receiving slot 41, a protruding rod 42 and a protruding portion 43 are disposed in the receiving slot 41, and a clamping slot 44 is disposed on a side of the base 40.
In assembly, referring to fig. 5, the notch 222 and the coupling hole 223 of the conductive connection portion 22 correspond to the protrusion 43 and the protruding rod 42 of the receiving slot 41 of the housing 40, respectively, and the clamping slot 311 between the two protruding pieces 310 of the conductor 31 correspondingly clamps the protrusion 43 of the receiving slot 41, so that the conductive connection portion 22 and the conductor 31 are embedded in the receiving slot 41, and the second terminal 33 is fixedly clamped in the clamping slot 44 of the housing 40.
In the general state of the present invention, the contact spring 21 of the thermal trip device 20 is bent downward, so that the first conductive point 211 of the contact spring 21 is kept in contact with the second conductive point 221 of the conductive connection portion 22, and a circuit connection (ON) state is formed from the first terminal 11 to the second terminal 33 via the cover 10, the contact spring 21, the first conductive point 211, the second conductive point 221, the conductive connection portion 22, the protruding piece 310, the conductor 31, the free end 312, and the fusible alloy 32, as shown in fig. 5 and 6.
In general, when the current is overloaded, the circuit is overheated or the ambient temperature of the user is too high, the thermal trip device 20 will generate temporary trip and power failure (OFF), and automatically recover to form circuit connection (ON) after the temperature drops; that is, the contact spring 21 of the thermal trip device 20 is deformed by heat to be bent reversely (upwardly) to trip, so that the first conductive point 211 is separated from the second conductive point 221, and the circuit is turned OFF (OFF), as shown in fig. 7. When the temperature drops and the contact spring 21 of the thermal trip device 20 cools, the contact spring 21 deforms again to reversely bend (downwardly) and jump, so that the first conductive point 211 contacts with the second conductive point 221, and the circuit is in a connected (ON) state, as shown in fig. 6.
Further, when the contact spring 21 of the thermal trip device 20 fails to be deformed in real time or cannot be deformed by heat, and is reversely bent (upwardly) to trip and be turned OFF (OFF) in the event of current overload, circuit overheating or environmental temperature being too high, the fusible alloy 32 of the thermal trip device 20 is continuously heated and continuously heated, and when the temperature reaches a set temperature, the fusible alloy 32 is melted, generally, at least two residual blocks 32' in a separated state are formed, as shown in fig. 8, at this time, the connection of the fusible alloy 32 is lost, and the free end 312 of the conductive body 31 is bounced down by the elastic force accumulated by itself to be separated from the second terminal 33, so that a completely turned-OFF (OFF) state of the circuit is formed, and the completely turned-OFF (OFF) state of the circuit is ensured and is not returned to be turned ON (ON).
When the thermal trip device 20 is not responsive, cannot respond or repeatedly fails to respond, and is powered ON (ON) continuously, the fusible alloy 32 of the thermal cut-OFF device 30 is further melted, so that the conductor 31 forces the free end 312 of the conductor 31 to be separated from the second terminal 33 by the elastic force accumulated by the conductor 31, thereby forming complete power failure (OFF) of the circuit loop, and the circuit loop can not return to the power ON (ON) state. The invention has two independent temperature sensing power-OFF settings, is a circuit protection device with double temperature sensing power-OFF, and can ensure the effect of complete power-OFF (OFF) of a circuit loop.
The present invention has been described in detail, and the above description is only a preferred embodiment of the present invention, but should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made according to the scope of the present invention should also be covered by the scope of the present invention.
Claims (7)
1. A circuit protection device with dual temperature sensing power-off function comprises a cover body, a thermal sensing tripping device, a thermal melting circuit-breaking device and a base body; it is characterized in that the preparation method is characterized in that,
the cover body is a conductor and is connected with a first terminal;
the thermal induction tripping device comprises a contact spring and a conductive connecting part; the contact spring sheet is a metal sheet body with elasticity, is formed into a curved arc shape, can jump to two side surfaces of the sheet body, can deform and reversely bend when being heated and bounce to the other side surface, one end of the contact spring sheet is fixedly combined with the cover body, and the free end of the contact spring sheet is provided with a first conductive point; the conductive connecting part is in a plate shape, and the upper side surface of the conductive connecting part is provided with a second conductive point which corresponds to the first conductive point;
the hot melting circuit breaking device comprises a conductor, a fusible alloy and a second terminal; the electric conductor is an elastic body, one end of the electric conductor is fixedly contacted with the electric conduction connecting part of the thermal induction tripping device and is electrically communicated with the electric conduction connecting part, the other end of the electric conductor is a free end, the free end of the electric conductor is kept in a downward state under the state of not being subjected to external force, and the free end of the electric conductor is separated from the second terminal; the fusible alloy is connected with the free end of the electric conductor and the second terminal to form electric connection, and the free end of the electric conductor accumulates elastic force separated from the second terminal;
the seat body is provided with a containing groove; the conductive connecting part, the electric conductor and the fusible alloy are embedded in the accommodating groove;
in a normal state, the first conductive point and the second conductive point of the contact elastic sheet of the thermal induction tripping device are kept in contact to form a circuit loop communication state; when the current is overloaded, the circuit is overheated or the using environment temperature is overhigh, the contact elastic sheet of the thermal induction tripping device is heated to deform and reversely bend and trip, so that the first conductive point is separated from the second conductive point, the circuit is in an open circuit state, and after the contact elastic sheet is cooled, the contact elastic sheet deforms and reversely bends again, the first conductive point contacts with the second conductive point, and a reconnection state of the circuit is formed;
furthermore, in the state of current overload, circuit overheating or over-high ambient temperature in use, if the thermal induction tripping device fails to trip in real time or cannot trip and is powered off, the fusible alloy of the thermal fuse tripping device is continuously heated and continuously heated, and after the set temperature is reached, the fusible alloy is melted, and the free end and the second terminal are separated by the elastic force accumulated by the conductor per se, so that the complete power-off state of the circuit loop is formed.
2. The dual temperature sensing deenergized circuit protection device of claim 1, wherein said thermally sensitive trip unit contact spring is a composite metal foil.
3. The dual temperature sensing power-off circuit protection device of claim 1, wherein the electrical conductor of the thermal fuse circuit-breaking device is a flexible sheet.
4. The dual temperature sensing power cutoff circuit protection device of claim 1 wherein said fusible alloy of said thermal cutoff device is forced to punch the ends, the ends of the fusible alloy expanding and contracting outwardly to bring the free ends of the electrical conductors into contact with the second terminals to form an electrical connection;
the second terminal is fixed, and the free end of the conductor is pulled toward the second terminal by the fusible alloy, so that the free end of the conductor accumulates elastic force for separating from the second terminal.
5. The dual temperature sensing power cutoff circuit protection device of claim 4 wherein said fusible alloy of said thermal cutoff connects said free end of said electrical conductor to said second terminal by welding to form an electrical connection.
6. The dual temperature sensing power cutoff circuit protection device of claim 1 wherein said thermally fusible circuit interrupting device has a junction at the free end of the conductor and said second terminal has a junction; the junction of the free end of the conductor and the junction of the second terminal are connected by a fusible alloy to form an electrical connection.
7. The dual temperature sensing power-off circuit protection device of claim 1, wherein a clamping groove is formed on a side of the base, and the second terminal is fixedly clamped in the clamping groove of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101676266A CN101728120B (en) | 2008-10-21 | 2008-10-21 | Dual temperature sensing cutoff circuit protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101676266A CN101728120B (en) | 2008-10-21 | 2008-10-21 | Dual temperature sensing cutoff circuit protective device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101728120A true CN101728120A (en) | 2010-06-09 |
| CN101728120B CN101728120B (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101676266A Expired - Fee Related CN101728120B (en) | 2008-10-21 | 2008-10-21 | Dual temperature sensing cutoff circuit protective device |
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| Country | Link |
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| CN (1) | CN101728120B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047492A (en) * | 2015-06-23 | 2015-11-11 | 上海神沃电子有限公司 | Over-temperature protector |
| CN109638532A (en) * | 2018-11-06 | 2019-04-16 | 九阳股份有限公司 | A kind of electric connector of anti-short circuit |
| CN116131037A (en) * | 2023-02-24 | 2023-05-16 | 深圳市振欢电子有限公司 | Explosion-proof type power adapter |
| WO2023247398A1 (en) | 2022-06-21 | 2023-12-28 | Signify Holding B.V. | Overload protection in an electronic device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032088A (en) * | 1987-09-18 | 1989-03-29 | 东部电气株式会社 | Protector |
| JP2005240596A (en) * | 2004-02-24 | 2005-09-08 | Ubukata Industries Co Ltd | Protective device for electric compressor |
| CN100351976C (en) * | 2004-09-07 | 2007-11-28 | 游聪谋 | Protector of inductive circuit with dual-temperature |
-
2008
- 2008-10-21 CN CN2008101676266A patent/CN101728120B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047492A (en) * | 2015-06-23 | 2015-11-11 | 上海神沃电子有限公司 | Over-temperature protector |
| CN105047492B (en) * | 2015-06-23 | 2018-01-16 | 上海神沃电子有限公司 | Overtemperature protector |
| CN109638532A (en) * | 2018-11-06 | 2019-04-16 | 九阳股份有限公司 | A kind of electric connector of anti-short circuit |
| WO2023247398A1 (en) | 2022-06-21 | 2023-12-28 | Signify Holding B.V. | Overload protection in an electronic device |
| CN116131037A (en) * | 2023-02-24 | 2023-05-16 | 深圳市振欢电子有限公司 | Explosion-proof type power adapter |
| CN116131037B (en) * | 2023-02-24 | 2023-10-20 | 深圳市振欢电子有限公司 | Explosion-proof type power adapter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101728120B (en) | 2011-09-28 |
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