CN210954293U - Alarm device capable of timely finding electric leakage of charging pile - Google Patents
Alarm device capable of timely finding electric leakage of charging pile Download PDFInfo
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- CN210954293U CN210954293U CN201921650440.6U CN201921650440U CN210954293U CN 210954293 U CN210954293 U CN 210954293U CN 201921650440 U CN201921650440 U CN 201921650440U CN 210954293 U CN210954293 U CN 210954293U
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- electric leakage
- charging pile
- coupling device
- voltage coupling
- alarm lamp
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Abstract
The utility model discloses an alarm device capable of timely finding the electric leakage of a charging pile, which comprises a wire, a voltage coupling device, a bracket and an electric leakage alarm lamp, wherein the bracket is arranged in the charging pile body; a voltage coupling device is arranged on the bracket; the leakage alarm lamp is arranged on the outer side of the charging pile body; one end of the voltage coupling device is connected with the charging pile power supply through a wire, and the other end of the voltage coupling device is connected with the electric leakage alarm lamp through a wire. When charging pile normal condition (not taking place the electric leakage), do not influence the circuit and normally work, when taking place the electric leakage, voltage coupling device both ends produce great voltage difference and take place mutual inductance phenomenon simultaneously and produce the electromotive force, and the electric leakage alarm lamp forms the return circuit and has the electric current to produce and the switch-on is lighted, reminds user and the maintenance personal of charging in time to overhaul. The utility model discloses safe in utilization and cost are lower, and the warning is timely. The utility model discloses simple structure, easily installation uses reliably, can in time discover to fill the electric leakage of electric pile.
Description
Technical Field
The utility model belongs to the technical field of the safety device, further belong to electric leakage alarm device technical field, concretely relates to simple structure, easily installation uses reliably, can in time discover to fill the alarm device of electric pile electric leakage.
Background
The new energy automobile is the development direction of future automobiles, and the electric automobile is the main automobile type of the new energy automobile and must gradually enter thousands of households. The charging pile is a necessary supporting facility of the electric automobile, and the safety of the charging pile is related to the life and property safety of people. Charging pile electric leakage is one of common trouble, and in order to detect the electric leakage condition of charging pile, the detection method that generally adopts at present is: a main board is provided with a circuit breaking device for charging a pile, when electric leakage occurs, the circuit breaking device is automatically powered off, the detection method needs to detect the change of a current signal through an internal circuit, and then the internal signal amplifier drives a related driving circuit to be powered off, but the device is high in cost, complex in technology and not suitable for replacement and maintenance. The other type is that the charging pile is not provided with a detection module, a professional is required to use a universal meter to carry out regular field detection, but the detection method cannot find the electric leakage phenomenon of the charging pile in time. Therefore, the key for solving the problem is to research and develop an alarm device which is simple in structure, easy to install, reliable to use and capable of finding the electric leakage of the charging pile in time.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, easily installation uses reliably, can in time discover to fill the alarm device of electric pile electric leakage.
The utility model aims at realizing the purpose, which comprises a lead, a voltage coupling device, a bracket and a leakage alarm lamp, wherein the bracket is arranged in the charging pile body; a voltage coupling device is arranged on the bracket; the leakage alarm lamp is arranged on the outer side of the charging pile body; one end of the voltage coupling device is connected with the charging pile power supply through a wire, and the other end of the voltage coupling device is connected with the electric leakage alarm lamp through a wire.
The utility model discloses constitute by wire, voltage coupling device, support, electric leakage alarm lamp, wherein voltage coupling device comprises two mutual inductance coils. When charging pile normal condition (not taking place the electric leakage), voltage coupling device both ends do not have the voltage difference (or the voltage difference is less), and the magnetic field size equidirectional opposition that both ends produced offsets each other, does not influence the normal work of circuit, and when taking place the electric leakage, voltage coupling device both ends produce great voltage difference and take place mutual inductance phenomenon simultaneously and produce the electromotive force, and the electric leakage warning lamp forms the return circuit and has the electric current to produce and put through and light, reminds charging user and maintainer in time to overhaul. The utility model discloses safe in utilization and cost are lower, and the warning is timely. The utility model discloses simple structure, easily installation uses reliably, can in time discover to fill the electric leakage of electric pile.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic diagram of the voltage coupling device of the present invention.
In the figure: the method comprises the following steps of 1-charging pile body, 2-charging pile power supply, 3-conducting wire, 4-voltage coupling device, 41-mutual inductor, 5-bracket and 6-electric leakage alarm lamp.
Detailed Description
The following description of the present invention is further illustrated with reference to the accompanying drawings, but the present invention is not limited in any way, and all changes made based on the teaching of the present invention fall into the protection scope of the present invention.
As shown in fig. 1-2, the utility model comprises a lead 3, a voltage coupling device 4, a bracket 5 and a leakage alarm lamp 6, wherein the bracket 5 is arranged in a charging pile body 1; a voltage coupling device 4 is arranged on the bracket 5; the electric leakage alarm lamp 6 is arranged on the outer side of the charging pile body 1; one end of the voltage coupling device 4 is connected with the charging pile power supply 2 through a wire 3, and the other end of the voltage coupling device is connected with the electric leakage alarm lamp 6 through the wire 3.
The voltage coupling means 4 comprises two pieces of mutual inductor 41.
The two mutual inductors 41 of the voltage coupling device 4 are arranged in parallel.
The mutual inductance coils 41 are divided into two parts, wherein one end of one mutual inductance coil 41 is connected with a live wire of the charging pile power supply 2 through a lead 3, and the other end of the mutual inductance coil is connected with the anode of the electric leakage alarm lamp 6 through the lead 3; one end of the other mutual inductor 41 is connected with a zero line of the charging pile power supply 2 through a lead 3, and the other end is connected with the negative pole of the electric leakage alarm lamp 6 through the lead 3.
The bracket 5 is made of insulating materials.
The utility model discloses a theory of operation and working process:
the utility model discloses constitute by wire 3, voltage coupling device 4, support 5, electric leakage alarm lamp 6, wherein voltage coupling device 4 comprises two mutual inductance coils 41. When charging pile 1 normal condition (not taking place the electric leakage), voltage difference (or voltage difference is less) does not have at voltage coupling device 4 both ends, and the magnetic field size equidirectional opposite mutual offset that produces at both ends does not influence the circuit and normally works, and when taking place the electric leakage, voltage coupling device 4 both ends produce great voltage difference and take place mutual inductance phenomenon simultaneously and produce the electromotive force, and electric leakage alarm lamp 6 forms the return circuit and has the electric current to produce and put through and light, reminds charging user and maintainer in time to overhaul.
Claims (5)
1. The utility model provides a can in time discover to fill alarm device of electric pile electric leakage, includes wire (3), voltage coupling device (4), support (5), electric leakage alarm lamp (6), characterized by: the bracket (5) is arranged in the charging pile body (1); a voltage coupling device (4) is arranged on the bracket (5); the electric leakage alarm lamp (6) is arranged on the outer side of the charging pile body (1); one end of the voltage coupling device (4) is connected with the charging pile power supply (2) through a wire (3), and the other end of the voltage coupling device is connected with the electric leakage alarm lamp (6) through the wire (3).
2. The alarm device capable of timely finding electric leakage of the charging pile according to claim 1, which is characterized in that: the voltage coupling device (4) comprises two mutual inductors (41).
3. The alarm device capable of timely finding electric leakage of the charging pile according to claim 1 or 2, wherein the alarm device comprises: the two mutual inductors (41) of the voltage coupling device (4) are arranged in parallel.
4. The alarm device capable of timely finding electric leakage of the charging pile according to claim 2, wherein the alarm device is characterized in that: the mutual inductance coils (41) are divided into two parts, one end of one mutual inductance coil (41) is connected with a live wire of the charging pile power supply (2) through a lead (3), and the other end of the mutual inductance coil is connected with the anode of the electric leakage alarm lamp (6) through the lead (3); one end of the other mutual inductor (41) is connected with a zero line of the charging pile power supply (2) through a lead (3), and the other end of the other mutual inductor is connected with the negative electrode of the electric leakage alarm lamp (6) through the lead (3).
5. The alarm device capable of timely finding electric leakage of the charging pile according to claim 1, which is characterized in that: the bracket (5) is made of an insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921650440.6U CN210954293U (en) | 2019-09-30 | 2019-09-30 | Alarm device capable of timely finding electric leakage of charging pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921650440.6U CN210954293U (en) | 2019-09-30 | 2019-09-30 | Alarm device capable of timely finding electric leakage of charging pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210954293U true CN210954293U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201921650440.6U Active CN210954293U (en) | 2019-09-30 | 2019-09-30 | Alarm device capable of timely finding electric leakage of charging pile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112415351A (en) * | 2020-11-04 | 2021-02-26 | 四川光慧新能源科技有限公司 | Insulation monitoring method for completing connection of charging pile on line |
| CN112918296A (en) * | 2021-01-22 | 2021-06-08 | 北京智思迪科技有限公司 | Electric shock prevention and new energy automobile that can automatic alarm fill electric pile |
-
2019
- 2019-09-30 CN CN201921650440.6U patent/CN210954293U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112415351A (en) * | 2020-11-04 | 2021-02-26 | 四川光慧新能源科技有限公司 | Insulation monitoring method for completing connection of charging pile on line |
| CN112918296A (en) * | 2021-01-22 | 2021-06-08 | 北京智思迪科技有限公司 | Electric shock prevention and new energy automobile that can automatic alarm fill electric pile |
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