CN202888544U - Hand reset overload overtemperature protection plug with alarm function - Google Patents
Hand reset overload overtemperature protection plug with alarm function Download PDFInfo
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- CN202888544U CN202888544U CN 201220600843 CN201220600843U CN202888544U CN 202888544 U CN202888544 U CN 202888544U CN 201220600843 CN201220600843 CN 201220600843 CN 201220600843 U CN201220600843 U CN 201220600843U CN 202888544 U CN202888544 U CN 202888544U
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- overload overtemperature
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Abstract
The utility model discloses a hand reset overload overtemperature protection plug with an alarm function. The hand reset overload overtemperature protection plug comprises power pins, an overload overtemperature protector, a load power wire and an alarm circuit, wherein the power pins comprise a live wire pin and a neutral wire pin; the live wire pin is electrically connected with a live wire of the load power wire after passing through the overload overtemperature protector; the neutral wire pin is electrically connected with a neutral wire of the load power wire; the alarm circuit is connected in parallel with the overload overtemperature protector and provided with a PTC (Positive Temperature Coefficient) thermistor; and the PTC thermistor and the overload overtemperature protector are mounted together, so that heat generated by the PTC can be transmitted to the overload overtemperature protector. According to the hand reset overload overtemperature protection plug, an alarm can be given in time when a circuit is cut off by the overload overtemperature protector, so that a user can immediately obtain the exception information and remove the exception information in time; and meanwhile, the overload overtemperature protector cannot be automatically reset and connected after cutting off the circuit, so that electric equipment is protected from being damaged and the dangerous accidents caused by electromagnetic waves and sparks due to the multi-time repeated reset operation of the overload overtemperature protector are effectively avoided.
Description
Technical field
The utility model relates to a kind of attaching plug, particularly a kind of hand-reset overload overtemperature prote plug with warning function.
Background technology
Attaching plug (Power plug) spreads all over each corner of our life, television set, refrigerator, electric fan, air-conditioning etc. all need to use and must use attaching plug, various production equipments that factory uses the inside etc. all need attaching plug, in a word in short " where need electricity, where attaching plug just arranged ".The use of electrical equipment has its danger, if power consumption is excessive, then easily cause can't bear the heavy load of electrical appliance, power line or socket, gently then damage, heavy then cause disaster accident, therefore need to strengthen the safety of its electricity consumption in the use of power line and plug, yet in the prior art, attaching plug only has usually for electrical equipment provides and connects electric function.
Progress along with technology, people have designed the plug with the overload overheat protection function, for example: Chinese patent 03204261.2 discloses a kind of overload protecting plug, comprise a power line, one plug and an overload protective device, wherein power line comprises a live wire and a zero line, and plug comprises a live wire end pin and a zero line pin, and the zero line of this zero line side pin and this power line is electrically connected; And this overload protective device comprises a live wire contact site and a pin contact site, and the live wire of this live wire contact site and this power line is electrically connected, and the live wire end pin electrical contact of this pin contact site and this plug becomes the normality conducting; Overload protecting plug can bimetal leaf the flexural deformation characteristic, or the resistance value of semistor increase and decrease characteristic can not damaged because of super-high-current power line and socket, or makes the electrical appliance can be not impaired because of the generation of erratic current.
Yet; above-mentioned plug with the overload overheat protection function has many disappearances in actual applications: one, lack warning function; when overheat protector disconnecting plug circuit; the user does not often know owing to appliance power excessive or overload or the bad problem that causes of plug itself, thereby can not in time reduce the loading level of electrical equipment or get rid of targetedly unusual.Two, because the overload Overtemp. protector is generally the bimetal leaf temperature protector, have auto-reset function, when temperature is high, bimetal leaf temperature protector automatic cut-off power, after temperature reduced, the bimetal leaf temperature protector recovered again the conducting of power supply automatically; So; above-mentioned with the overload overheat protection function plug in actual application; owing to do not reach alarm; even appliance circuit is under the fault condition; plug also can make plug switch between cut-out circuit and connection circuit two states incessantly because of the auto-reset function of overload Overtemp. protector; so not only damage easily electric equipment, and can be because the overload Overtemp. protector generates electromagnetic waves reset the time and spark causes larger peril to occur.
The utility model content
The technical problems to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of hand-reset overload overtemperature prote plug with warning function is provided, this plug can in time give the alarm when the overload Overtemp. protector cuts off circuit, make the user know unusually at once, and in time eliminate unusual; Simultaneously, the overload Overtemp. protector of this plug cuts off the connection circuit that can not automatically reset behind the circuit, thus the protection electric equipment avoid destroying, effectively avoid generating electromagnetic waves when repeatedly repeating to reset because of the overload Overtemp. protector and spark has an accident.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of hand-reset overload overtemperature prote plug with warning function, comprise power pin, overload Overtemp. protector and load power source line, described power pin comprises live wire pin and zero line pin; Described live wire pin is behind described overload Overtemp. protector, with the live wire electric connection of load power source line; The zero line of described zero line pin and described load power source line is electrically connected; Also comprise warning circuit, described warning circuit is in parallel with the overload Overtemp. protector, and described warning circuit has PTC, and described PTC is installed in one with the overload Overtemp. protector, and the heat that PTC is produced can conduct to the overload Overtemp. protector.
As to further elaboration of the present utility model:
Described warning circuit also comprises rectifier diode, alarm, reaches filter capacitor, and described PTC, rectifier diode and alarm are in series, and described filter capacitor and alarm are in parallel.
Further, described PTC one utmost point contacts with the power input of overload Overtemp. protector, and another utmost point is linked in the warning circuit.Described rectifier diode comprises the first rectifier diode and the second rectifier diode, and the first rectifier diode, alarm, the second rectifier diode are sequentially connected.Described alarm is LED lamp or buzzer.The appearance value of described filter capacitor is 50 μ F～150 μ F, is preferably 100 μ F.
Further, described power pin also comprises earth pin, and described load power source line also comprises ground wire, and the ground wire of described earth pin and load power source line is electrically connected.
The beneficial effects of the utility model are: on the one hand, warning circuit of the present utility model is in parallel with the overload Overtemp. protector, when the plug temperature is low, because the impedance of the PTC thermistor of warning circuit is much larger than the impedance of overload Overtemp. protector, therefore, only from overload Overtemp. protector process, warning circuit is in the non operating state that no current passes through to electric current; And when plug overload or excess Temperature, the overload Overtemp. protector cuts off circuit, and a small amount of electric current passes through from warning circuit; warning circuit is conducting and giving the alarm; therefore, the user can know unusually at once, and in time eliminates the abnormal problem of electrical equipment or plug itself.On the other hand; because PTC is installed in one with the overload Overtemp. protector; PTC is thermistor; when plug overload or excess Temperature; the overload Overtemp. protector cuts off circuit; pass through among a small amount of PTC of electric current from warning circuit; the PTC heating of working; its surface temperature maintains a higher temperature; meanwhile; PTC continues heat is conducted to the overload Overtemp. protector; make the temperature of overload Overtemp. protector also be in higher temperature all the time and can not automatically reset or resilience, keeps lasting off-state, thereby the protection electric equipment is avoided destruction; effectively avoid generating electromagnetic waves when repeating to reset and spark has an accident because of the overload Overtemp. protector; when the user needs the turn-on power plug, can pull out first plug-in power pack or unload load, wait for that then overload Overtemp. protector automatic cooling resets; then plug in, attaching plug namely recovers the normally state again.
Description of drawings
Fig. 1 is the circuit diagram of the utility model preferred implementation.
Fig. 2 is the utility model perspective view.
Fig. 3 is the utility model structure front view, also comprises the circuit structure perspective view among the figure.
Fig. 4 is along the cutaway view of A-A line among Fig. 3.
Among the figure: 1. housing; 2. power pin; 21. live wire pin; 22. zero line pin; 23. earth pin; 24. power firestreak; 3. alarm; 4. load power source line; 41. live wire; 42. zero line; 43. ground wire; 5. circuit case; 6.PTC; 7. rectifier diode; 8. filter capacitor; 9. overload Overtemp. protector.
Embodiment
Below in conjunction with accompanying drawing structural principle of the present utility model and operation principle are described in further detail.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the utility model is a kind of hand-reset overload overtemperature prote plug with warning function, comprise plug casing 1, this plug casing 1 is equipped with power pin 2, overload Overtemp. protector 9 and load power source line 4, and described power pin 2 comprises live wire pin 21 and zero line pin 22; Described live wire pin 21 is connected to power firestreak 24, and described live wire pin 21 is behind described overload Overtemp. protector 9, with live wire 41 electric connections of load power source line 4; Described zero line pin 22 is electrically connected with the zero line 42 of load power source line 4; Also comprise warning circuit, described warning circuit is in parallel with the overload Overtemp. protector, and described warning circuit has PTC 6, and described PTC 6 is installed in one with overload Overtemp. protector 9, and the heat that PTC 6 is produced can conduct to overload Overtemp. protector 9.Use in the plug process the user, when the plug temperature is low, because the impedance of the PTC thermistor of warning circuit is much larger than the impedance of overload Overtemp. protector 9, therefore, only from overload Overtemp. protector 9 processes, warning circuit is in the non operating state that no current passes through to electric current; And when the plug excess Temperature, overload Overtemp. protector 9 cuts off circuit, a small amount of electric current process from warning circuit, and warning circuit is conducting and giving the alarm, therefore, the user can know unusually at once, and in time eliminates the abnormal problem of electrical equipment or plug itself.Simultaneously; because PTC 6 is installed in one with overload Overtemp. protector 9; PTC 6 is thermistor; when plug overload or excess Temperature; overload Overtemp. protector 9 cuts off circuit; process among a small amount of PTC 6 of electric current from warning circuit; PTC 6 work heatings; its surface temperature maintains a higher temperature; meanwhile; PTC 6 continues heat is conducted to overload Overtemp. protector 9; make the temperature of overload Overtemp. protector 9 also be in higher temperature all the time and can not automatically reset or resilience, keeps lasting off-state, thereby the protection electric equipment is avoided destruction; effectively avoid generating electromagnetic waves when repeating to reset and spark has an accident because of overload Overtemp. protector 9; when the user needs the turn-on power plug, can pull out first plug-in power pack or lay down load, wait for that then overload Overtemp. protector 9 automatic coolings reset; then plug in, attaching plug namely recovers the normally state again.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4; in technique scheme; described overload Overtemp. protector 9 is installed in the circuit case 5 with warning circuit; described warning circuit comprises PTC 6, rectifier diode 7, alarm 3, reaches filter capacitor 8; described PTC 6, rectifier diode 7 are in series with alarm 7, and described filter capacitor 8 is in parallel with alarm 3.Further, described PTC 6 one utmost points contact with the power input of overload Overtemp. protector 9, and another utmost point is linked in the warning circuit.Described rectifier diode 7 comprises the first rectifier diode and the second rectifier diode, and the first rectifier diode, alarm 3, the second rectifier diode are sequentially connected.Described alarm 3 is LED lamp or buzzer.Described filter capacitor 8 adopts electrochemical capacitor, and its appearance value is 50 μ F～150 μ F, is preferably 100 μ F.Certainly, in the utility model, its current rectifying and wave filtering circuit is not limited to adopt two rectifier diodes and the mode that filter capacitor forms, and also can adopt the circuit forms such as bridge rectifier filtering.In Fig. 1, J1 is power pin 2, and J2 is load power source line 4, and T1 is the overload Overtemp. protector, and D1, D3 are rectifier diode, and C1 is filter capacitor, and D2 is alarm, and when D2 was LED, it was bright to send red blue flash.
Such as Fig. 2, Fig. 3 and shown in Figure 4; optimal way as the hand-reset overload overtemperature prote plug that this is had warning function; described power pin 2 also comprises earth pin 23; described load power source line 4 also comprises ground wire 43, and described earth pin 23 is electrically connected with the ground wire 43 of load power source line 4.
The above only is the utility model preferred embodiments, and every any trickle modification, equivalent variations and modification of above execution mode being done according to the technical solution of the utility model all belongs in the scope of technical solutions of the utility model.
Claims (9)
1. have the hand-reset overload overtemperature prote plug of warning function, comprise power pin, overload Overtemp. protector and load power source line, described power pin comprises live wire pin and zero line pin; Described live wire pin is behind described overload Overtemp. protector, with the live wire electric connection of load power source line; The zero line of described zero line pin and described load power source line is electrically connected; It is characterized in that: also comprise warning circuit, described warning circuit is in parallel with the overload Overtemp. protector, and described warning circuit has PTC, and described PTC is installed in one with the overload Overtemp. protector, and the heat that PTC is produced can conduct to the overload Overtemp. protector.
2. the hand-reset overload overtemperature prote plug with warning function according to claim 1; it is characterized in that: described warning circuit also comprises rectifier diode, alarm, reaches filter capacitor; described PTC, rectifier diode and alarm are in series, and described filter capacitor and alarm are in parallel.
3. the hand-reset overload overtemperature prote plug with warning function according to claim 2 is characterized in that: described PTC one utmost point with transship the power input of Overtemp. protector and contact, another utmost point is linked in the warning circuit.
4. the hand-reset overload overtemperature prote plug with warning function according to claim 2; it is characterized in that: described rectifier diode comprises the first rectifier diode and the second rectifier diode, and the first rectifier diode, alarm, the second rectifier diode are sequentially connected.
5. the hand-reset overload overtemperature prote plug with warning function according to claim 2, it is characterized in that: described alarm is the LED lamp.
6. the hand-reset overload overtemperature prote plug with warning function according to claim 2, it is characterized in that: described alarm is buzzer.
7. the hand-reset overload overtemperature prote plug with warning function according to claim 2, it is characterized in that: the appearance value of described filter capacitor is 50 μ F～150 μ F.
8. the hand-reset overload overtemperature prote plug with warning function according to claim 7, it is characterized in that: the appearance value of described filter capacitor is 100 μ F.
9. the described hand-reset overload overtemperature prote plug with warning function of any one according to claim 1～8; it is characterized in that: described power pin also comprises earth pin; described load power source line also comprises ground wire, and the ground wire of described earth pin and load power source line is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220600843 CN202888544U (en) | 2012-11-15 | 2012-11-15 | Hand reset overload overtemperature protection plug with alarm function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220600843 CN202888544U (en) | 2012-11-15 | 2012-11-15 | Hand reset overload overtemperature protection plug with alarm function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202888544U true CN202888544U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201220600843 Expired - Fee Related CN202888544U (en) | 2012-11-15 | 2012-11-15 | Hand reset overload overtemperature protection plug with alarm function |
Country Status (1)
| Country | Link |
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| CN (1) | CN202888544U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305174A (en) * | 2015-11-16 | 2016-02-03 | 东莞崧崴电子科技有限公司 | Attaching plug with over-temperature alarm device |
| CN107039853A (en) * | 2017-05-16 | 2017-08-11 | 肇庆学院 | It is a kind of can detection short circuit and high temperature automatically power off alarm security socket |
| CN108233028A (en) * | 2016-12-21 | 2018-06-29 | 青岛经济技术开发区海尔热水器有限公司 | A kind of attaching plug and electrical equipment with detection own temperature function |
| CN109028256A (en) * | 2018-07-16 | 2018-12-18 | 珠海格力电器股份有限公司 | Heating equipment and its control device and method |
| CN109103708A (en) * | 2018-07-16 | 2018-12-28 | 河北科技大学 | A kind of plug is recycled the automatic fuse of overheating protection and its application method |
| CN110648507A (en) * | 2019-09-30 | 2020-01-03 | 伟创力电子技术(苏州)有限公司 | System for automatically cutting off power supply and alarming in case of overtemperature |
-
2012
- 2012-11-15 CN CN 201220600843 patent/CN202888544U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305174A (en) * | 2015-11-16 | 2016-02-03 | 东莞崧崴电子科技有限公司 | Attaching plug with over-temperature alarm device |
| CN108233028A (en) * | 2016-12-21 | 2018-06-29 | 青岛经济技术开发区海尔热水器有限公司 | A kind of attaching plug and electrical equipment with detection own temperature function |
| CN107039853A (en) * | 2017-05-16 | 2017-08-11 | 肇庆学院 | It is a kind of can detection short circuit and high temperature automatically power off alarm security socket |
| CN109028256A (en) * | 2018-07-16 | 2018-12-18 | 珠海格力电器股份有限公司 | Heating equipment and its control device and method |
| CN109103708A (en) * | 2018-07-16 | 2018-12-28 | 河北科技大学 | A kind of plug is recycled the automatic fuse of overheating protection and its application method |
| CN109103708B (en) * | 2018-07-16 | 2024-04-05 | 河北科技大学 | Automatic fuse with recyclable overheat protection function for electric plug and use method of automatic fuse |
| CN110648507A (en) * | 2019-09-30 | 2020-01-03 | 伟创力电子技术(苏州)有限公司 | System for automatically cutting off power supply and alarming in case of overtemperature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20160321 Granted publication date: 20130417 |
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| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20160921 Granted publication date: 20130417 |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20160921 Granted publication date: 20130417 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20170921 Granted publication date: 20130417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20151115 |