CN202888538U - Manual reset overload overtemperature protection plug - Google Patents
Manual reset overload overtemperature protection plug Download PDFInfo
- Publication number
- CN202888538U CN202888538U CN 201220600716 CN201220600716U CN202888538U CN 202888538 U CN202888538 U CN 202888538U CN 201220600716 CN201220600716 CN 201220600716 CN 201220600716 U CN201220600716 U CN 201220600716U CN 202888538 U CN202888538 U CN 202888538U
- Authority
- CN
- China
- Prior art keywords
- overload
- protector
- pin
- ptc
- overtemp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The utility model discloses a manual reset overload overtemperature protection plug. The manual reset overload overtemperature protection plug comprises a power supply pin, an overload overtemperature protector and a load power cord, wherein the power supply pin comprises a live wire pin and a neutral wire pin; the live wire pin passes through the overload overtemperature protector and then is electrically connected with a live wire of the load power cord; the neutral wire pin is electrically connected with a neutral wire of the load power cord; and the manual reset overload overtemperature protection plug further comprises a PTC (positive temperature coefficient), wherein the PTC and the overload overtemperature protector are connected in parallel, the PTC and the overload overtemperature protector are mounted together, and the heat produced by the PTC can be conducted to the overload overtemperature protector. The overload overtemperature protector disclosed by the utility model can be connected with a circuit by manual reset after the circuit of a power supply is cut off, thereby protecting electrical appliances from being damaged and effectively avoiding dangerous accidents caused by production of electromagnetic waves and sparks during repeated automatic reset of the overload overtemperature protector.
Description
Technical field
The utility model relates to a kind of attaching plug, particularly a kind of hand-reset overload overtemperature prote plug.
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, 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; 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 easily because the overload Overtemp. protector generates electromagnetic waves when repeatedly repeating to reset 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 is provided; the connection circuit can not automatically reset behind the overload Overtemp. protector cut-out circuit of this plug; thereby the protection electric equipment is avoided destroying, and effectively avoids 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, comprise power pin, overload Overtemp. protector and load power source line, and 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 PTC, this PTC is in parallel with described overload Overtemp. protector, and this 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:
In technique scheme, described PTC sticks together mutually with the overload Overtemp. protector, and this overload Overtemp. protector is preferably the bimetal leaf temperature protector.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: overload Overtemp. protector of the present utility model is in parallel with PTC, and PTC and overload Overtemp. protector are installed in one, PTC is thermistor, when load and temperature are normal, the impedance of PTC is much larger than the impedance of overload Overtemp. protector, therefore, only from overload Overtemp. protector process, PTC 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; a small amount of electric current passes through from PTC; 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; keep lasting off-state; thereby the protection electric equipment is avoided destroying, and effectively avoids generating electromagnetic waves when repeating to reset because of the overload Overtemp. protector and spark has an accident.On the other hand; when the user needs the turn-on power plug, can pull out first plug-in power pack or close plug switch or lay down load, wait for that then overload Overtemp. protector automatic cooling resets; then plug in again power supply or open plug switch, attaching plug namely recovers the normally state.
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.
Fig. 4 is along the cutaway view of A-A line among Fig. 3.
Among the figure: 1. housing; 21. live wire pin; 22. zero line pin; 23. earth pin; 3 load power source lines; 31. live wire; 32. zero line; 33. ground wire; 4.PTC; 5. 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, comprise plug casing 1, this plug casing 1 is equipped with power pin 2, overload Overtemp. protector 4 and load power source line 3, and described power pin 2 comprises live wire pin 21 and zero line pin 22; Described live wire pin 21 is behind described overload Overtemp. protector 4, with live wire 31 electric connections of load power source line 3; Described zero line pin 22 is electrically connected with the zero line 32 of described load power source line 3; Also comprise PTC 5, this PTC 5 is in parallel with described overload Overtemp. protector 4, and this PTC 5 is installed in one with overload Overtemp. protector 4, so that the heat that PTC 5 produces can conduct to overload Overtemp. protector 4.Use in the plug process the user, when load and temperature were normal, the impedance of PTC 5 was much larger than the impedance of overload Overtemp. protector 4, and therefore, only from overload Overtemp. protector 4 processes, PTC 5 is in the non operating state that no current passes through to electric current; And when plug overload or excess Temperature; overload Overtemp. protector 4 cuts off circuit; a small amount of electric current passes through from PTC 5; PTC 5 work heatings; its surface temperature maintains a higher temperature; meanwhile; PTC 5 continues heat is conducted to overload Overtemp. protector 4; make the temperature of overload Overtemp. protector 4 also be in higher temperature all the time and can not automatically reset or resilience; keep lasting off-state; thereby the protection electric equipment is avoided destroying, and effectively avoids generating electromagnetic waves when repeating to reset because of the overload Overtemp. protector and spark has an accident.On the other hand; when the user needs the turn-on power plug; can pull out first plug-in power pack or close plug switch or lay down load; then wait for that overload Overtemp. protector 4 automatic coolings reset; then plug in again power supply or open plug switch, attaching plug namely recovers the normally state.
As shown in Figure 1 and Figure 4, in technique scheme, described PTC 5 sticks together mutually with overload Overtemp. protector 4, and this overload Overtemp. protector 4 is preferably bimetal leaf temperature protector 4.Described power pin 2 also comprises earth pin 23, and described load power source line 3 also comprises ground wire 33, and described earth pin 23 is electrically connected with the ground wire 33 of load power source line 3.In Fig. 1, J1 is power pin, and J2 is the load power source line, and T1 is the overload Overtemp. protector.
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 (4)
1. hand-reset overload overtemperature prote plug comprises power pin, overload Overtemp. protector and load power source line, and 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 PTC, this PTC is in parallel with described overload Overtemp. protector, and this 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. hand-reset according to claim 1 overload overtemperature prote plug is characterized in that: described PTC with transship Overtemp. protector and stick together mutually.
3. hand-reset according to claim 1 overload overtemperature prote plug, it is characterized in that: described overload Overtemp. protector is the bimetal leaf temperature protector.
4. according to claim 1 and 2 or 3 described hand-resets overload overtemperature prote plugs, it is characterized in that: described power pin also comprises earth pin, and described load power source line also comprises ground wire, the ground wire electric connection of described earth pin and load power source line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220600716 CN202888538U (en) | 2012-11-15 | 2012-11-15 | Manual reset overload overtemperature protection plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220600716 CN202888538U (en) | 2012-11-15 | 2012-11-15 | Manual reset overload overtemperature protection plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202888538U true CN202888538U (en) | 2013-04-17 |
Family
ID=48079929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220600716 Expired - Fee Related CN202888538U (en) | 2012-11-15 | 2012-11-15 | Manual reset overload overtemperature protection plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202888538U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767085A (en) * | 2015-04-07 | 2015-07-08 | 裴焕禄 | Panel socket for fire-proof wall |
| CN105662112A (en) * | 2016-03-15 | 2016-06-15 | 梁炜畅 | Novel electric cooker temperature control assembly and electric cooker using same |
-
2012
- 2012-11-15 CN CN 201220600716 patent/CN202888538U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767085A (en) * | 2015-04-07 | 2015-07-08 | 裴焕禄 | Panel socket for fire-proof wall |
| CN105662112A (en) * | 2016-03-15 | 2016-06-15 | 梁炜畅 | Novel electric cooker temperature control assembly and electric cooker using same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202888544U (en) | Hand reset overload overtemperature protection plug with alarm function | |
| CN201601333U (en) | Socket | |
| CN105024241A (en) | Power extension line and power plug and socket thereof | |
| CN201820968U (en) | Power socket module with functions of overcurrent, overvoltage and over-temperature protection | |
| CN203056283U (en) | Safe socket with current overload protection | |
| CN202888538U (en) | Manual reset overload overtemperature protection plug | |
| CN208257381U (en) | A kind of surge protection device and surge protection device | |
| CN202888542U (en) | Manual reset overload overtemperature protection socket with pre-warning function | |
| CN101834375A (en) | Overload protective socket | |
| CN202888543U (en) | Manual reset overload overtemperature protection socket | |
| CN204012021U (en) | The attaching plug of belt switch | |
| CN202888540U (en) | Manual reset overload overtemperature protection plug with pre-warning function | |
| CN106654749A (en) | Safety fireproof power strip | |
| CN203434386U (en) | Safety socket with over current protection function | |
| CN210866597U (en) | Overheat automatic power-off safety socket | |
| CN202888539U (en) | Overload overtemperature protection plug with alarm function | |
| CN203242853U (en) | Power socket with overheating protection | |
| CN202159815U (en) | Lighting stroke protection power socket | |
| CN203242858U (en) | Safe socket assembly with over-current protection | |
| CN202395429U (en) | Thermal protection device for motor | |
| CN204720711U (en) | Fire compartment wall panel jack | |
| CN201146298Y (en) | Automatic power-off socket against fire disaster | |
| CN205355440U (en) | Adapter plug with overheat protection | |
| CN202444127U (en) | Power supply current-limiting temperature-control safe socket | |
| CN208908205U (en) | A kind of novel overheat overcurrent power-off protection device |
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 |
|
| 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 |
Date of cancellation: 20170921 Granted publication date: 20130417 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20151115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |