CN214708129U - Single lamp controller with lightning surge protection function and street lamp - Google Patents
Single lamp controller with lightning surge protection function and street lamp Download PDFInfo
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- CN214708129U CN214708129U CN202120233703.4U CN202120233703U CN214708129U CN 214708129 U CN214708129 U CN 214708129U CN 202120233703 U CN202120233703 U CN 202120233703U CN 214708129 U CN214708129 U CN 214708129U
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Abstract
The utility model provides a single lamp controller and street lamp with protection of surging is hit by thunderbolt, the single lamp controller that protection was hit by surge is hit by the thunderbolt wherein has includes: the protection circuit comprises a control circuit, a switching power supply and a protection circuit, wherein the switching power supply is connected with the control circuit; the switch power supply is connected with external commercial power through a live wire, a zero line and a ground wire, and the protection circuit is arranged among the live wire, the zero line and the ground wire; the protection circuit comprises a resistor element, a first safety element, a second safety element and a discharge tube, wherein two ends of the resistor element are respectively connected with the live wire and the zero wire, a first end of the first safety element is connected with the zero wire, a first end of the second safety element is connected with a second end of the first safety element, and the input end of the discharge tube is connected between the first safety element and the second safety element; the output end of the discharge tube is connected with the ground wire. The utility model discloses can improve the thunderbolt surge protection level of single lamp controller under the prerequisite that does not change the size space.
Description
Technical Field
The utility model belongs to the technical field of single lamp control, especially, relate to a single lamp controller and street lamp with protection of surging is hit by thunderbolt.
Background
With the miniaturization of equipment, the integration level of the semiconductor device is correspondingly improved, and due to the fact that the anti-surge capacity of the semiconductor device is reduced due to the space problem, corresponding lightning surge protection measures need to be taken to guarantee the safety of electronic products.
At present, according to the voltage class requirement of electronic equipment or electronic components on different power supply lines for lightning protection, a plurality of discharge devices are connected in series on the power supply line. When the lightning voltage induced by the power supply line exceeds the conducting voltage of the plurality of discharge devices, the plurality of discharge devices are broken down to discharge the lightning current or the lightning electromagnetic pulse to the ground, so that the protection effect is achieved.
However, the size of the general lightning protection device is large and limited by the size, the general protection devices on the single lamp controller are few, the size and the protection grade are low, and the single lamp controller cannot be protected when the real high lightning surge occurs
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a single lamp controller with protection of surging is shone to solve current single lamp controller and be subject to the size and lead to the lower problem of thunderbolt surge protection level.
The utility model discloses a realize like this, provide a single lamp controller with protection of surging is hit by thunderbolt, include: the protection circuit comprises a control circuit, a switching power supply and a protection circuit, wherein the switching power supply is connected with the input end of the control circuit; the input end of the switching power supply is connected with an external commercial power through a live wire, a zero line and a ground wire, and the protection circuit is arranged among the live wire, the zero line and the ground wire.
The protection circuit comprises a resistor device, a first safety device, a second safety device and a discharge tube, wherein two ends of the resistor device are respectively connected with the live wire and the zero wire, a first end of the first safety device is connected with the live wire, a first end of the second safety device is connected with a second end of the first safety device, and the input end of the discharge tube is connected between the first safety device and the second safety device; the second end of the second safety device is connected with the zero line, and the output end of the discharge tube is connected with the ground wire.
Still further, the live wire between the resistance device and the external commercial power is provided with a third fuse device.
Still further, the resistive device is a varistor.
Further, the first fuse element and the second fuse element are both piezoresistors.
Further, the discharge tube is a gas discharge tube or a glass discharge tube.
Further, the switching power supply is an AC/DC switching power supply.
The utility model also provides a street lamp, include as above the single lamp controller that has the protection of surging of thunderbolt.
Compared with the prior art, the utility model discloses an among the single lamp controller with protection of surging is shone to the thunderbolt, through set up the resistance device between live wire and zero line, set gradually first insurance device and second insurance device between live wire and zero line, still set up discharge tube between first insurance device and second insurance device, and the output and the ground wire of discharge tube are connected to form a protection circuit, and this protection circuit can improve the thunderbolt surge protection level of single lamp controller under the prerequisite that does not change size space.
Drawings
Fig. 1 is a block diagram of a single lamp controller with lightning surge protection according to an embodiment of the present invention.
Fig. 2 is a schematic connection diagram of a protection circuit in surge protection with lightning stroke according to an embodiment of the present invention.
Wherein, 1, a single lamp controller; 11. a control circuit; 12. a switching power supply; 121. a live line; 122. a zero line; 123. a ground wire; 13. a protection circuit; 131. a resistance device; 132. a first fuse device; 133. a second fuse element; 134. a discharge tube; 135. a third fuse element; 2. and (4) external commercial power.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
The embodiment of the utility model provides a single lamp controller 1 with protection of surging is hit by lightning combines fig. 1 and fig. 2 to show, include: a control circuit 11, a switching power supply 12 connected to an input terminal of the control circuit 11, and a protection circuit 13; the input end of the switching power supply 12 is connected to the external commercial power 2 through the live wire 121, the neutral wire 122, and the ground wire 123, and the protection circuit 13 is disposed between the live wire 121, the neutral wire 122, and the ground wire 123.
Specifically, the protection circuit 13 includes a resistance device 131 having two ends respectively connected to the live wire 121 and the neutral wire 122, a first fuse device 132 having a first end connected to the live wire 121, a second fuse device 133 having a first end connected to a second end of the first fuse device 132, and a discharge tube 134 having an input end connected between the first fuse device 132 and the second fuse device 133; a second terminal of the second fuse element 133 is connected to the neutral line 122, and an output terminal of the discharge tube 134 is connected to the ground line 123.
Specifically, the switching power supply 12 is an AC/DC switching power supply 12 so as to provide a stable direct-current voltage.
Specifically, the resistor device 131 is a voltage dependent resistor, and is configured to absorb surge energy to suppress lightning overvoltage, so as to achieve a surge differential mode protection effect. Of course, according to actual requirements, the resistor device 131 may also be a thermistor for suppressing lightning overvoltage by absorbing high temperature generated by surge energy, so as to achieve the surge differential mode protection effect.
Specifically, the first fuse element 132 and the second fuse element 133 are both piezoresistors, and are used for absorbing surge energy to suppress lightning overvoltage, so as to achieve a surge differential mode protection effect. Of course, according to actual requirements, the first fuse element 132 and the second fuse element 133 may also be selected from thermistors for suppressing lightning overvoltage by absorbing high temperature generated by surge energy, so as to achieve the surge differential mode protection effect.
Specifically, the resistor device 131, the first fuse device 132, and the second fuse device 133 may also be selected from other devices capable of achieving the surge differential mode protection effect.
Specifically, the discharge tube 134 is a gas discharge tube 134 or a glass discharge tube 134. The first fuse element 132 and the second fuse element 133 are used together to form a surge common mode protection function.
Further, the live wire 121 between the resistor device 131 and the external mains 2 is provided with a third safety device 135 for preventing the circuit from being burned out due to a short circuit at a later stage.
Specifically, the third fuse device 135 is a fuse or a thermistor.
Compared with the prior art, the utility model discloses an among the single lamp controller 1 with protection of surging is shone to the thunderbolt, through set up resistance device 131 between live wire 121 and zero line 122, set gradually first insurance device 132 and second insurance device 133 between live wire 121 and zero line 122, still set up discharge tube 134 between first insurance device 132 and second insurance device 133, and discharge tube 134's output and ground wire 123 are connected, thereby form a protection circuit 13, and this protection circuit 13 can improve single lamp controller 1's thunderbolt surge protection level under the prerequisite that does not change size space.
Example two
The embodiment of the utility model provides a street lamp, this street lamp include embodiment one have the single lamp controller 1 of thunderbolt surge protection.
By arranging the single lamp controller 1 with lightning surge protection in the first embodiment on the street lamp, the lightning surge protection level of the single lamp controller 1 in the street lamp can be improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A single lamp controller with lightning surge protection, comprising: the protection circuit comprises a control circuit, a switching power supply and a protection circuit, wherein the switching power supply is connected with the input end of the control circuit; the input end of the switch power supply is connected with an external commercial power through a live wire, a zero line and a ground wire, and the protection circuit is arranged among the live wire, the zero line and the ground wire;
the protection circuit comprises a resistor device, a first safety device, a second safety device and a discharge tube, wherein two ends of the resistor device are respectively connected with the live wire and the zero wire, a first end of the first safety device is connected with the live wire, a first end of the second safety device is connected with a second end of the first safety device, and the input end of the discharge tube is connected between the first safety device and the second safety device; the second end of the second safety device is connected with the zero line, and the output end of the discharge tube is connected with the ground wire.
2. The single lamp controller with lightning surge protection of claim 1, wherein said live line between said resistive device and said external mains is provided with a third fuse device.
3. The single lamp controller with lightning surge protection of claim 1, wherein said resistive device is a varistor.
4. The single lamp controller with lightning surge protection of claim 1, wherein said first fuse device and said second fuse device are both piezoresistors.
5. The single lamp controller with lightning surge protection of claim 1, wherein the discharge tube is a gas discharge tube or a glass discharge tube.
6. The single lamp controller with lightning surge protection of claim 1, wherein said switching power supply is an AC/DC switching power supply.
7. A street lamp comprising a single lamp controller with lightning surge protection as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120233703.4U CN214708129U (en) | 2021-01-27 | 2021-01-27 | Single lamp controller with lightning surge protection function and street lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120233703.4U CN214708129U (en) | 2021-01-27 | 2021-01-27 | Single lamp controller with lightning surge protection function and street lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214708129U true CN214708129U (en) | 2021-11-12 |
Family
ID=78565294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120233703.4U Active CN214708129U (en) | 2021-01-27 | 2021-01-27 | Single lamp controller with lightning surge protection function and street lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214708129U (en) |
-
2021
- 2021-01-27 CN CN202120233703.4U patent/CN214708129U/en active Active
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