CN219498418U - Double-insurance safety plug device - Google Patents
Double-insurance safety plug device Download PDFInfo
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- CN219498418U CN219498418U CN202320417761.1U CN202320417761U CN219498418U CN 219498418 U CN219498418 U CN 219498418U CN 202320417761 U CN202320417761 U CN 202320417761U CN 219498418 U CN219498418 U CN 219498418U
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- thermal protector
- double
- pin
- plug device
- live
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The utility model relates to a double-insurance safety plug device which is characterized by comprising a zero line, a live line, a zero line pin, a live line pin, a first thermal protector and a second thermal protector, wherein the first thermal protector is connected in series between the zero line and the zero line pin, a connecting terminal of the first thermal protector is directly fixedly connected with the zero line pin, and the second thermal protector is connected in series between the live line and the live line pin, and the connecting terminal of the second thermal protector is directly fixedly connected with the live line pin. The utility model has the advantages of easy use, low use cost, double insurance, faster protection, high safety and the like.
Description
Technical Field
The utility model relates to the field of electric appliances, in particular to a plug.
Background
The patent document with the Chinese patent application number 202221425772.6 discloses a technical scheme named as a temperature control plug, and the technical scheme comprises the following technical characteristics: the heat-insulating shell comprises a shell, a heat-conducting inner frame, pins, a thermistor, wires, a protection plate, a protection side plate and a heat-insulating cylinder.
When the temperature control plug is used, an abnormal heating point is generally at the contact position of the pin and the socket. When the contact part heats, heat is firstly conducted to the pins and the pins are heated; then heat is conducted to the heat conduction inner frame, and the heat conduction inner frame is heated; then, the heat is conducted to the thermistor, and the temperature of the thermistor is raised (firstly, the shell of the thermistor is raised, then, the heat is conducted to the temperature sensing element in the thermistor, and the temperature sensing element is raised). Because the heat conduction process can be quickly passed through after the circuit is connected unlike electric energy, the heat conduction process needs to be conducted one by one, and heat consumption is generated in the conduction process (most of the heat is firstly absorbed by the objects conducting in the middle, and a small part of the heat is transferred to surrounding objects). Therefore, the heat at the contact part is conducted to the temperature sensing element in the thermistor through the pins, the heat conducting inner frame and the shell of the thermistor, and a relatively long time is required to be consumed. Therefore, the time for the thermistor to reach the working temperature is longer, so that the time for the thermistor to play a protective role is longer, and the overheat protection effect cannot be achieved rapidly. The temperature of the contact part is high, and the thermistor only plays a role, so that the insulator of the socket and the plug is easy to burn, even safety accidents can be caused, and the safety of the temperature control plug is lower. Although the heat conduction inner frame adopting the ceramic inner frame has better heat conduction performance, the heat absorption and temperature rise process still exists, and the process consumes time, so the time for the thermistor to play a protective role is still slower.
Meanwhile, according to the description of the specification, when the thermal resistor is actually used, the thermistor embedded in the thermal insulation cylinder can detect the temperature of the pin more quickly, the temperature value is further rapidly transmitted to the controller, if the temperature value exceeds the protection temperature, the controller can rapidly send an alarm signal to an external operation end, and the external operation end cuts off the power supply, so that the following can be obtained: the temperature control plug cannot independently play the overheat protection function, and the thermistor is required to be connected to the controller and is provided with an operation end connected with the controller, so that the temperature control plug has the problems of complex structure, high manufacturing difficulty, high manufacturing cost and the like in the whole structure when in use, and the use cost of the temperature control plug is high.
Therefore, there is a great need to design a double-safety plug device that solves the above-mentioned technical problems.
Disclosure of Invention
The utility model aims to solve the problems and the defects and provide a double-insurance safety plug device which has the advantages of easy use, low use cost, double insurance, faster protection, high safety and the like.
The technical scheme of the utility model is realized as follows:
the double-insurance safety plug device is characterized by comprising a zero line, a live line, a zero line pin, a live line pin, a first thermal protector and a second thermal protector, wherein the first thermal protector is connected in series between the zero line and the zero line pin, a connecting terminal of the first thermal protector is directly fixedly connected with the zero line pin, and the second thermal protector is connected in series between the live line and the live line pin, and the connecting terminal of the second thermal protector is directly fixedly connected with the live line pin.
On the basis of the foregoing structure, the following subdivision schemes are made, which are respectively: first, the binding post of first thermal protector and zero line pin are integrated into one piece structure, and/or, the binding post of second thermal protector and live wire pin are integrated into one piece structure. Second, the connection terminal of the first thermal protector is welded or riveted with the neutral pin, and/or the connection terminal of the second thermal protector is welded or riveted with the live pin. Third, the connection terminal of the first thermal protector is a first line pressing terminal and enables the first line pressing terminal to be clamped on the zero line pin, and/or the connection terminal of the second thermal protector is a second line pressing terminal and enables the second line pressing terminal to be clamped on the fire wire pin.
Preferably, the first thermal protector is a PTC thermal protector, and/or the second thermal protector is a PTC thermal protector.
Preferably, the double-safety plug device further comprises an insulating housing, and the first thermal protector and the second thermal protector are both disposed in the insulating housing.
Preferably, the connection of the neutral wire and the first thermal protector, the connection of the live wire and the second thermal protector, the butt joint of the neutral wire pin and the first thermal protector, and the butt joint of the live wire pin and the second thermal protector are all located in the insulating shell.
Preferably, the insulating housing comprises an upper shell and a lower shell, wherein the upper shell is arranged on the lower shell, and the upper shell and the lower shell jointly clamp the first thermal protector and the second thermal protector.
Preferably, a first buckling groove and a second buckling groove are respectively formed in the inner wall of the upper shell, a first embedding groove and a second embedding groove are respectively formed in the inner wall of the lower shell, the first thermal protector and the second thermal protector are respectively embedded in the first embedding groove and the second embedding groove, and the first buckling groove and the second buckling groove are respectively buckled on the first thermal protector and the second thermal protector.
Preferably, the neutral pin is provided with at least one first insertion protrusion, the first insertion protrusion is inserted on the inner wall of the insulating housing, the live wire pin is provided with at least one second insertion protrusion, and the second insertion protrusion is inserted on the inner wall of the insulating housing.
The utility model has the beneficial effects that: on this double insurance safety plug device, through on zero line is participated in, the live wire is participated in and is directly linked respectively first thermal protector, second thermal protector, can be convenient for in this way participate in heat direct conduction to thermal protector on, thereby can avoid the centre to appear too much heat loss, and then can be convenient for thermal protector receives the heat influence more fast, this can shorten thermal protector greatly and receive the time that the heat influenced, with the delay of significantly reducing thermal protector action, this double insurance safety plug device can accomplish overheat protection's effect fast. The double-insurance safety plug device can prevent the contact from playing a role in thermal protection after the temperature is very high, so that the condition of burning out insulators of the socket and the plug can be avoided, and further, the occurrence of safety accidents can be avoided.
The first thermal protector and the second thermal protector are respectively and directly fixedly connected to the zero line pin and the fire line pin, and the circuit can be disconnected very quickly when any one of the zero line pin and the fire line pin is overheated, so that the double-insurance function can be realized, the safety of the double-insurance safety plug device is improved, and the safety of the double-insurance safety plug device is extremely high.
Meanwhile, the double-insurance safety plug device can directly play a role in protection without being matched with other components, is easier to use, and has the advantages of simple structure, small manufacturing difficulty, low manufacturing cost and the like in the whole structure during use.
Drawings
Fig. 1 is a schematic perspective view of a dual-safety plug device according to the present utility model.
Fig. 2 is a schematic diagram of a split structure of a dual-safety plug device according to the present utility model.
Fig. 3 is a schematic view of a part of the structure of the dual-safety plug device in the present utility model.
Fig. 4 is a schematic view of a part of the structure of the present utility model using riveting connection.
Fig. 5 is a schematic view of a part of the structure of the present utility model using an integrated structure.
Fig. 6 is a schematic view of a part of the structure of the present utility model using a welded connection.
Fig. 7 is a schematic view of a part of the structure of the present utility model using a wire pressing terminal connection.
Fig. 8 is a schematic perspective view of the upper shell in the present utility model.
Fig. 9 is a schematic perspective view of the lower case of the present utility model.
Detailed Description
As shown in fig. 1 to 3, the double-insurance safety plug device of the present utility model includes a neutral wire 1, a live wire 2, a neutral wire pin 3, a live wire pin 4, a first thermal protector 5, and a second thermal protector 6, wherein the first thermal protector 5 is connected in series between the neutral wire 1 and the neutral wire pin 3, and directly connects a connection terminal of the first thermal protector 5 with the neutral wire pin 3, and the second thermal protector 6 is connected in series between the live wire 2 and the live wire pin 4, and directly connects a connection terminal of the second thermal protector 6 with the live wire pin 4.
On this double insurance safety plug device, through on zero line participate in 3, live wire participate in 4 respectively direct connect first thermal protector 5, second thermal protector 6, can be convenient for participate in the heat direct conduction to thermal protector on like this to can avoid the centre to appear too much heat loss, and then can be convenient for thermal protector receives the heat influence more fast, this time that thermal protector received the heat influence can be shortened greatly, with the delay of significantly reducing thermal protector action, this double insurance safety plug device can accomplish overheat protection's effect fast. The double-insurance safety plug device can prevent the contact from playing a role in thermal protection after the temperature is very high, so that the condition of burning out insulators of the socket and the plug can be avoided, and further, the occurrence of safety accidents can be avoided.
The first thermal protector 5 and the second thermal protector 6 are directly fixedly connected to the zero line pin 3 and the fire line pin 4 respectively, so that a circuit can be disconnected very quickly when any one of the zero line pin 3 and the fire line pin 4 is overheated, the double-insurance effect can be achieved, the safety of the double-insurance safety plug device is improved, and the safety of the double-insurance safety plug device is extremely high.
Meanwhile, the double-insurance safety plug device can directly play a role in protection without being matched with other components, is easier to use, and has the advantages of simple structure, small manufacturing difficulty, low manufacturing cost and the like in the whole structure during use.
On the basis of the foregoing structure, the following subdivision schemes are made, which are respectively:
first, as shown in fig. 3 and 5, the connection terminal of the first thermal protector 5 is integrally formed with the neutral pin 3, and/or the connection terminal of the second thermal protector 6 is integrally formed with the live pin 4. Therefore, the stable zero line pin 3 and the fire line pin 4 can be obtained, and the heat conduction can be ensured to be very direct, rapid and stable, so that the first thermal protector 5 and the second thermal protector 6 can be ensured to play a role in thermal protection very rapidly, and the double-insurance safety plug device can be ensured to have very high safety.
As shown in fig. 3 and 5, when the neutral pin 3 is integrally formed with one of the terminals of the first thermal protector 5, the thickness of the neutral pin 3 is made larger than the thickness of the terminal. Thus, not only can the zero line pin 3 be ensured to have very high structural strength, but also the use of raw materials can be well controlled, thereby well controlling the manufacturing cost.
As shown in fig. 3 and 5, when the live pin 4 is integrally formed with one of the terminals of the second thermal protector 6, the thickness of the live pin 4 is made larger than the thickness of the terminal. Therefore, the fire wire pin 4 can be guaranteed to have very high structural strength, and the use of raw materials can be well controlled, so that the manufacturing cost can be well controlled.
Second, as shown in fig. 2, 4 and 6, the connection terminal of the first thermal protector 5 is welded or riveted to the neutral pin 3 and/or the connection terminal of the second thermal protector 6 is welded or riveted to the live pin 4. Therefore, the connection part can be ensured to be very stable and reliable, the heat conduction can be ensured to be very stable and rapid, the first thermal protector 5 and the second thermal protector 6 can be ensured to play a role in thermal protection very rapidly, and the double-insurance safety plug device can be ensured to have very high safety.
Third, as shown in fig. 7, the connection terminal of the first thermal protector 5 is a first voltage terminal 51, and the first voltage terminal 51 is clamped on the neutral pin 3, and/or the connection terminal of the second thermal protector 6 is a second voltage terminal 61, and the second voltage terminal 61 is clamped on the live pin 4. Therefore, the connection part can be ensured to be very stable and reliable, the heat conduction can be ensured to be very stable and rapid, the first thermal protector 5 and the second thermal protector 6 can be ensured to play a role in thermal protection very rapidly, and the double-insurance safety plug device can be ensured to have very high safety.
The first thermal protector 5 is a PTC thermal protector and/or the second thermal protector 6 is a PTC thermal protector. By using the PTC thermal protector, the PTC thermal protector must be reconnected after the plug is manually removed and the PTC thermal protector is cooled to a certain temperature. After the PTC thermal protector acts due to high temperature, the PTC thermal protector can keep an off state all the time, so that the PTC thermal protector can be prevented from being repeatedly turned on and off, and potential safety hazards can be greatly reduced.
As shown in fig. 1 and 2, the double safety plug device further includes an insulating housing 7, and the first thermal protector 5 and the second thermal protector 6 are both disposed in the insulating housing 7. In this way, the first thermal protector 5 and the second thermal protector 6 can be shielded and protected, so that the double-insurance safety plug device can be ensured to have very high reliability and safety.
As shown in fig. 1 and 2, the connection of the neutral wire 1 and the first thermal protector 5, the connection of the live wire 2 and the second thermal protector 6, the butt joint of the neutral wire pin 3 and the first thermal protector 5, and the butt joint of the live wire pin 4 and the second thermal protector 6 are all located in the insulating housing 7. Thus, the double-insurance safety plug device has better shielding protection function, thereby being beneficial to further improving the reliability and safety of the double-insurance safety plug device.
As shown in fig. 1 and 2, the insulating housing 7 includes an upper case 71 and a lower case 72, and the upper case 71 is covered on the lower case 72, and the upper case 71 and the lower case 72 sandwich the first thermal protector 5 and the second thermal protector 6 together. Therefore, the double-safety plug device not only has the function of insulating protection, but also can stably limit the first thermal protector 5 and the second thermal protector 6, thereby being beneficial to further improving the stability and reliability of the installation and positioning of the first thermal protector 5 and the second thermal protector 6, and further being beneficial to further improving the reliability of the double-safety plug device.
As shown in fig. 1, 2, 8 and 9, the inner wall of the upper case 71 is provided with a first fastening groove 711 and a second fastening groove 712, the inner wall of the lower case 72 is provided with a first fitting groove 721 and a second fitting groove 722, the first thermal protector 5 and the second thermal protector 6 are respectively fitted in the first fitting groove 721 and the second fitting groove 722, and the first fastening groove 711 and the second fastening groove 712 are respectively fastened on the first thermal protector 5 and the second thermal protector 6. This can provide a more reliable limiting effect on the first thermal protector 5 and the second thermal protector 6, thereby helping to further improve the reliability of the double-insurance safety plug device.
As shown in fig. 1, 2 and 8, the inner wall of the upper shell 71 is provided with a plurality of limiting protruding columns 713, each limiting protruding column 713 is inserted into the lower shell 72, the upper shell 71 is provided with a locking screw 73, and the threaded end of the locking screw 73 passes through the upper shell 71 and is then screwed onto the lower shell 72. This ensures that the upper and lower shells 71 and 72 are assembled accurately, stably and reliably, thereby contributing to further improving the reliability of the double safety plug device.
As shown in fig. 2 to 5, the neutral pin 3 is provided with at least one first insertion protrusion 31, the first insertion protrusion 31 is inserted on the inner wall of the insulating housing 7, the live pin 4 is provided with at least one second insertion protrusion 41, and the second insertion protrusion 41 is inserted on the inner wall of the insulating housing 7. This helps to further improve the stability and reliability of the installation and positioning of the neutral pin 3, the live pin 4 and thus the reliability of the double safety plug device.
As shown in fig. 2 to 5, the upper and lower surfaces of the neutral pin 3 are respectively provided with first insertion protrusions 31, the two first insertion protrusions 31 are respectively inserted into the upper and lower cases 71 and 72, the upper and lower surfaces of the live pin 4 are respectively provided with second insertion protrusions 41, and the two second insertion protrusions 41 are respectively inserted into the upper and lower cases 71 and 72. Thus, the stability and reliability of the installation and positioning of the neutral pin 3 and the live pin 4 can be further improved, and the reliability of the double-insurance safety plug device can be further improved.
As shown in fig. 2, 3, 8 and 9, notches for embedding the neutral pin 3, the live pin 4, the connection terminal of the first thermal protector 5 and the connection terminal of the second thermal protector 6 are formed in the upper shell 71 and the lower shell 72, so that the requirements of installation and positioning can be well met.
Claims (10)
1. A double-insurance safety plug device, characterized in that: including zero line (1), live wire (2), zero line participate in (3), live wire participate in (4), first thermal protector (5), second thermal protector (6), wherein first thermal protector (5) establish ties between zero line (1) and zero line participate in (3) to make the binding post of first thermal protector (5) and the direct rigid coupling of zero line participate in (3), second thermal protector (6) establish ties between live wire (2) and live wire participate in (4), and make the binding post of second thermal protector (6) and the direct rigid coupling of live wire participate in (4).
2. The double-insurance security plug device according to claim 1, wherein: the connecting terminal of the first thermal protector (5) and the zero line pin (3) are of an integrated structure, and/or the connecting terminal of the second thermal protector (6) and the live line pin (4) are of an integrated structure.
3. The double-insurance security plug device according to claim 1, wherein: the connection terminal of the first thermal protector (5) is welded or riveted with the neutral pin (3) and/or the connection terminal of the second thermal protector (6) is welded or riveted with the live pin (4).
4. The double-insurance security plug device according to claim 1, wherein: the connecting terminal of the first thermal protector (5) is a first line pressing terminal (51) and enables the first line pressing terminal (51) to be clamped on the zero line pin (3), and/or the connecting terminal of the second thermal protector (6) is a second line pressing terminal (61) and enables the second line pressing terminal (61) to be clamped on the live line pin (4).
5. The double-insurance security plug device according to claim 1, wherein: the first thermal protector (5) is a PTC thermal protector and/or the second thermal protector (6) is a PTC thermal protector.
6. The double-insurance security plug device according to claim 1, wherein: the heat protector further comprises an insulating shell (7), and the first heat protector (5) and the second heat protector (6) are arranged in the insulating shell (7).
7. The double-insurance security plug device according to claim 6, wherein: the connection part of the zero line (1) and the first thermal protector (5), the connection part of the live line (2) and the second thermal protector (6), the butt joint part of the zero line pin (3) and the first thermal protector (5) and the butt joint part of the live line pin (4) and the second thermal protector (6) are all positioned in the insulating shell (7).
8. The double-insurance security plug device according to claim 6, wherein: the insulating shell (7) comprises an upper shell (71) and a lower shell (72), wherein the upper shell (71) is covered on the lower shell (72), and the upper shell (71) and the lower shell (72) jointly clamp the first thermal protector (5) and the second thermal protector (6).
9. The dual-safety plug device of claim 8, wherein: the inner wall of the upper shell (71) is respectively provided with a first buckling groove (711) and a second buckling groove (712), the inner wall of the lower shell (72) is respectively provided with a first embedding groove (721) and a second embedding groove (722), the first thermal protector (5) and the second thermal protector (6) are respectively embedded in the first embedding groove (721) and the second embedding groove (722), and the first buckling groove (711) and the second buckling groove (712) are respectively buckled on the first thermal protector (5) and the second thermal protector (6).
10. The double-insurance security plug device according to claim 6, wherein: the zero line pin (3) is provided with at least one first inserting convex part (31), the first inserting convex part (31) is inserted on the inner wall of the insulating shell (7), the live line pin (4) is provided with at least one second inserting convex part (41), and the second inserting convex part (41) is inserted on the inner wall of the insulating shell (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320417761.1U CN219498418U (en) | 2023-03-08 | 2023-03-08 | Double-insurance safety plug device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320417761.1U CN219498418U (en) | 2023-03-08 | 2023-03-08 | Double-insurance safety plug device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219498418U true CN219498418U (en) | 2023-08-08 |
Family
ID=87508877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320417761.1U Active CN219498418U (en) | 2023-03-08 | 2023-03-08 | Double-insurance safety plug device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219498418U (en) |
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2023
- 2023-03-08 CN CN202320417761.1U patent/CN219498418U/en active Active
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