CN217741584U - Power strip with zero line disconnection protection function - Google Patents
Power strip with zero line disconnection protection function Download PDFInfo
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- CN217741584U CN217741584U CN202122940191.8U CN202122940191U CN217741584U CN 217741584 U CN217741584 U CN 217741584U CN 202122940191 U CN202122940191 U CN 202122940191U CN 217741584 U CN217741584 U CN 217741584U
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- zero line
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- pulling mechanism
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Abstract
The invention discloses a socket with a zero line disconnection protection function, which consists of an alarm lamp, a rectifier bridge, a filter capacitor, a key tripping switch, a coil pin pulling mechanism and a power socket, wherein the alarm lamp, the rectifier bridge, the filter capacitor, the key tripping switch and the coil pin pulling mechanism are arranged in a power socket device. When the alternating voltage between the zero line N and the ground wire G reaches 20V or above, the coil pin pulling mechanism acts, and the key tripping switch is switched off; when the alternating voltage between the zero line N and the ground line G reaches 10V or above, the warning lamp is obviously lightened. The device has the characteristics of sensitive response to the zero line disconnection accident, simple structure and high reliability, and can provide an effective zero line disconnection protection function for electric equipment.
Description
Technical Field
The invention relates to the field of intelligent power strip, in particular to a strip with a zero line breaking protection function.
Background
The power supply of the socket is mostly adopted by 220V electric equipment, when the zero line of the indoor or indoor air switch or the zero line of the wall socket is in a state that the zero line is broken due to loose joints or misoperation during live working, the zero line in the electric equipment is changed into a live line, and the insulation of a circuit board or other materials between the zero line and the ground line on the circuit board is broken, so that the electric equipment is damaged or even a fire accident is caused. The zero line is broken, the protection of equipment connected to the zero line is also lost, and the indoor air switch generally only has the functions of overload short-circuit protection and leakage protection. In order to solve the problem, the existing method is to add a zero line disconnection protection device on an in-house junction box, but the zero line disconnection protection device can only provide protection when the zero line of an external circuit is disconnected, but cannot protect the zero line disconnection condition in an indoor power supply circuit, so that the development of a power strip with the zero line disconnection protection function is needed.
Disclosure of Invention
Aiming at the problems, the invention provides the power strip which can identify the zero line disconnection condition in the indoor power circuit and can provide the disconnection protection function in time.
In order to achieve the purpose, the invention provides a power strip with a zero line disconnection protection function, wherein an insulating shell of the power strip is internally provided with: the circuit comprises a zero line N wiring terminal electrically connected with a zero line N, a ground wire G wiring terminal electrically connected with a ground wire G and a live wire L wiring terminal electrically connected with a live wire L through a key tripping switch;
the zero line N wiring terminal is electrically connected with one end of the warning lamp through a lead, and the other end of the warning lamp is electrically connected with the ground line G wiring terminal through a lead; the zero line N connecting terminal is simultaneously electrically connected with a first alternating current input end of a rectifier bridge through a lead, and a second alternating current input end of the rectifier bridge is electrically connected with a ground wire G connecting terminal through a lead; the positive electrode of the direct current output end of the rectifier bridge is electrically connected with the positive electrode of the coil pin pulling mechanism, the negative electrode of the direct current output end of the rectifier bridge is electrically connected with the negative electrode of the coil pin pulling mechanism, and two ends of the coil pin pulling mechanism are connected with a filter capacitor in parallel;
a spring is arranged in a coil of the coil pin pulling mechanism and fixedly connected with a magnetic connecting rod, a pin head is arranged at one end, far away from the spring, of the magnetic connecting rod, and the pin head is in plug-in connection with a bayonet on the side face of an insulated key of a key tripping switch;
the bottom end of an insulating key of the key tripping switch is provided with a conductive connecting piece, and the conductive connecting piece is respectively connected with a first external circuit connecting terminal electrically connected with a live wire L connecting terminal and a second external circuit connecting terminal electrically connected with a live wire L connecting terminal through a conductor elastic piece.
Preferably, when the current flowing through the coil of the coil pin pulling mechanism exceeds 0.5A or the alternating voltage between the zero line N and the ground wire G reaches 20V or above, the coil attracts the magnetic connecting rod to contract, the magnetic connecting rod moves along the pin pulling direction, and the insulating key of the key tripping switch is tripped.
Preferably, the warning lamp is turned on when the alternating voltage between the zero line N and the ground line G reaches 10V or more.
The beneficial effects of the invention are as follows: the zero line disconnection protection device has the characteristics of sensitive response to zero line disconnection, simple structure and high reliability, and can provide an effective zero line disconnection protection function for electric equipment.
Drawings
FIG. 1 is a view showing the overall structure of the apparatus of the present invention;
FIG. 2 is a schematic diagram of a key release switch of the present invention;
fig. 3 is a schematic diagram of the coil pin pulling mechanism of the present invention.
In the figure: 1. the circuit board comprises an insulating shell, 2 parts of an insulating key, 3 parts of a conductive connecting piece, 4 parts of a conductor elastic sheet, 5 parts of a spring, 6 parts of a bayonet, 7 parts of a first external circuit connecting terminal, 8 parts of a second external circuit connecting terminal, 9 parts of a pin head, 10 parts of a guide rod, 11 parts of a magnet block, 12 parts of a coil.
Detailed Description
The invention provides a power strip with a zero line breaking protection function, wherein an insulating shell 1 of the power strip is internally provided with: the key-press tripping switch comprises a zero line N wiring terminal electrically connected with a zero line N, a ground wire G wiring terminal electrically connected with a ground wire G and a live wire L wiring terminal electrically connected with a live wire L through the key-press tripping switch;
the zero line N wiring terminal is electrically connected with one end of the warning lamp through a lead, and the other end of the warning lamp is electrically connected with the ground line G wiring terminal through a lead; the zero line N connecting terminal is simultaneously electrically connected with a first alternating current input end of a rectifier bridge through a lead, and a second alternating current input end of the rectifier bridge is electrically connected with a ground wire G connecting terminal through a lead; the positive electrode of the direct current output end of the rectifier bridge is electrically connected with the positive electrode of a coil 12 of the coil pin pulling mechanism, the negative electrode of the direct current output end of the rectifier bridge is electrically connected with the negative electrode of the coil 12 of the coil pin pulling mechanism, and two ends of the coil 12 of the coil pin pulling mechanism are connected with a filter capacitor in parallel;
a spring 5 is arranged in a coil 12 of the coil pin pulling mechanism, the spring 5 is fixedly connected with a magnetic connecting rod, one end, far away from the spring 5, of the magnetic connecting rod is provided with a pin head 9, and the pin head 9 is in plug-in connection with a side bayonet 6 of an insulating key 2 of a key tripping switch;
electrically conductive even piece 3 is installed to 2 bottoms of button trip switch's insulating button, electrically conductive even piece 3 is connected with first external circuit connecting terminal 7 that is connected with live wire L binding post electricity, second external circuit connecting terminal 8 that is connected with live wire L electricity respectively through conductor shell fragment 4.
When the current flowing through the coil 12 of the coil pin pulling mechanism exceeds 0.5A or the alternating voltage between the zero line N and the ground wire G reaches 20V or above, the coil 12 attracts the magnetic connecting rod to contract, the magnetic connecting rod moves along the pin pulling direction, and the insulating key 2 of the key tripping switch is tripped.
When the alternating voltage between the zero line N and the ground line G reaches 10V or above, the warning lamp is turned on.
The specific embodiment is as follows:
as shown in fig. 1, the device of the invention is composed of a warning lamp LED1, a rectifier bridge D1, a filter capacitor C1, a key trip switch K1, a coil pin pulling mechanism J1 and a power strip P1, wherein the warning lamp, the rectifier bridge, the filter capacitor, the key trip switch and the coil pin pulling mechanism are installed in the power strip device.
As shown in fig. 1, there are two ac input ends of the rectifier bridge, which are a first ac input end and a second ac input end, the first ac input end is connected to the zero line N, the second ac input end is connected to the ground line G, the dc output end of the rectifier bridge has two positive poles and two negative poles, the positive pole is connected to one end of the filter capacitor, the positive pole is connected to the positive pole of the coil 12 of the coil pin pulling mechanism, the negative pole is connected to the other end of the filter capacitor, the negative pole is connected to the negative pole of the coil 12 of the coil pin pulling mechanism, when the ac voltage between the zero line N and the ground line G reaches 20V or more, the coil pin pulling mechanism J1 acts to disconnect the key trip switch K1.
As shown in fig. 1, the warning lamp LED1 has one end connected to the zero line N and the other end connected to the ground line G, and when the ac voltage between the zero line N and the ground line G reaches 10V or more, the warning lamp LED1 is clearly lit.
As shown in fig. 2, the key release switch K1 includes an insulating key 2, a conductive connecting piece 3, a conductor elastic piece 4, two external circuit connecting terminals and a bayonet 6, where the two external circuit connecting terminals are a first external circuit connecting terminal 7 and a second external circuit connecting terminal 8, respectively; the input terminal Lin of live wire L is connected to second external circuit connecting terminal 8, and first external circuit connecting terminal 7 connects power strip P1's live wire L binding post as the output terminal Lout of live wire L, and bayonet 6 is connected the magnetism connecting rod of coil pulling pin mechanism, and the button trip switch K1 disconnection back, need press the switch again and just can resume the power supply.
As shown in fig. 3, the coil pin pulling mechanism J1 is composed of a coil 12, a spring 5 and a magnetic connecting rod, wherein the positive pole of the coil 12 is connected to the positive pole of the dc output end of the rectifier bridge, the negative pole of the coil 12 is connected to the negative pole of the dc output end of the rectifier bridge, the spring 5 is connected to the magnetic connecting rod, the magnetic connecting rod includes a guide rod 10, a magnet block 11 and a pin head 9 at the tail end of the guide rod 10, the spring 5 is placed inside the coil 12, the magnetic connecting rod is connected to the bayonet 6 of the key release switch, and when the current flowing through the coil 12 exceeds a preset limit value of 0.5A, the magnetic connecting rod is rapidly separated from the bayonet 6 of the key release switch K1, so as to disconnect the key release switch K1 and cut off the live wire L.
As shown in fig. 1, the filter capacitor C1 functions to smooth the output waveform of the full-wave rectification.
As shown in fig. 1, the power strip P1 has three terminals: live wire L connecting terminal, zero line N binding post, ground wire G binding post, live wire L connecting terminal connect live wire output terminal Lout, and zero line N binding post connects zero line N, and ground wire G binding post connects ground wire G.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (3)
1. The utility model provides a row of inserting with zero line protect function that breaks, its characterized in that, install in the insulating casing (1) of row of inserting: the circuit comprises a zero line N wiring terminal electrically connected with a zero line N, a ground wire G wiring terminal electrically connected with a ground wire G and a live wire L wiring terminal electrically connected with a live wire L through a key tripping switch;
the zero line N connecting terminal is electrically connected with one end of the warning lamp through a lead, and the other end of the warning lamp is electrically connected with the ground wire G connecting terminal through a lead; the zero line N connecting terminal is simultaneously electrically connected with a first alternating current input end of a rectifier bridge through a lead, and a second alternating current input end of the rectifier bridge is electrically connected with a ground wire G connecting terminal through a lead; the positive electrode of the direct current output end of the rectifier bridge is electrically connected with the positive electrode of a coil (12) of the coil pin pulling mechanism, the negative electrode of the direct current output end of the rectifier bridge is electrically connected with the negative electrode of the coil (12) of the coil pin pulling mechanism, and filter capacitors are connected in parallel at two ends of the coil (12) of the coil pin pulling mechanism;
a spring (5) is arranged in a coil (12) of the coil pin pulling mechanism, the spring (5) is fixedly connected with a magnetic connecting rod, a pin head (9) is arranged at one end, far away from the spring (5), of the magnetic connecting rod, and the pin head (9) is in plug-in connection with a side bayonet (6) of an insulating key (2) of a key tripping switch;
conductive connecting pieces (3) are installed at the bottom ends of insulating keys (2) of the key tripping switch, and the conductive connecting pieces (3) are respectively connected with first external circuit connecting terminals (7) electrically connected with a live wire L wiring terminal and second external circuit connecting terminals (8) electrically connected with the live wire L wiring terminal through conductor elastic pieces (4).
2. The socket with the function of protecting the zero line from being broken according to claim 1, wherein when the current flowing through the coil (12) of the coil pin pulling mechanism exceeds 0.5A or the alternating voltage between the zero line N and the ground line G reaches 20V or more, the coil (12) attracts the magnetic connecting rod to contract, the magnetic connecting rod moves along the pin pulling direction, and the insulated key (2) of the key tripping switch jumps.
3. The strip having a zero line disconnection protecting function according to claim 1, wherein the warning lamp is lighted when an alternating voltage between the zero line N and the ground line G reaches 10V or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122940191.8U CN217741584U (en) | 2021-11-26 | 2021-11-26 | Power strip with zero line disconnection protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122940191.8U CN217741584U (en) | 2021-11-26 | 2021-11-26 | Power strip with zero line disconnection protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217741584U true CN217741584U (en) | 2022-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122940191.8U Active CN217741584U (en) | 2021-11-26 | 2021-11-26 | Power strip with zero line disconnection protection function |
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| Country | Link |
|---|---|
| CN (1) | CN217741584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156702A (en) * | 2021-11-26 | 2022-03-08 | 国网辽宁省电力有限公司大连供电公司 | Zero line disconnection protection type power strip |
-
2021
- 2021-11-26 CN CN202122940191.8U patent/CN217741584U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156702A (en) * | 2021-11-26 | 2022-03-08 | 国网辽宁省电力有限公司大连供电公司 | Zero line disconnection protection type power strip |
| CN114156702B (en) * | 2021-11-26 | 2023-08-25 | 国网辽宁省电力有限公司大连供电公司 | Zero line broken wire protection type power strip |
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