CN201518415U - DC power feed type antenna feeder lightning protection device - Google Patents
DC power feed type antenna feeder lightning protection device Download PDFInfo
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- CN201518415U CN201518415U CN2009203106464U CN200920310646U CN201518415U CN 201518415 U CN201518415 U CN 201518415U CN 2009203106464 U CN2009203106464 U CN 2009203106464U CN 200920310646 U CN200920310646 U CN 200920310646U CN 201518415 U CN201518415 U CN 201518415U
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Abstract
The utility model provides a DC power feed type antenna feeder lightning protection device, belonging to the technical field of lightning protection, and solving the problems in the present lightning protection device that the release degree of the lighting current is low, the residual pressure is high, the safety is poor, and the leakage of the lighting current and the follow current are provided. A capacitor and an inductor are connected in parallel, one terminal of the capacitor is connected with an input terminal, the other terminal is connected with an output terminal, a first air bleeding pipe is connected with one terminal of the input terminal connected with the capacitor and is connected with the ground by a first bidirectional transient diode, one terminal of a second air bleeding pipe is connected with one terminal of the output terminal connected with the capacitor, the other terminal of the second air bleeding pipe is connected with a positive pole of a fourth diode, a second bidirectional transient diode, a third bidirectional transient diode and a fourth diode are connected in parallel, and a negative pole of the fourth diode is connected with the ground. The utility model has the beneficial effects that the DC power feed type antenna feeder lightning protection device has good reliability and high safety, and is suitable for the thunder and lightning protection of s digital communication transceiver.
Description
Technical field
The utility model relates to shocking preventing technology, relates in particular to a kind of DC feedback type antenna feeder lightning protection device.
Background technology
When mechanics of communication was maked rapid progress development, it is particularly important that shocking preventing technology also seems.For example in antenna-feedback system,, when lightning current arrives, will produce strong low-frequency interference signal, influence the communication between the user if there is not thunder resisting equipment.Even more serious is that the huge surge of generation burns out equipment most probably, causes economic loss.Lightning protection device of the prior art comprises that input terminal, lead-out terminal, electric capacity, inductance, gas puts pipe, described electric capacity one end is connected with input terminal, the other end is connected with lead-out terminal, electric capacity is in parallel with inductance, gas is put Guan Yiduan is connected input terminal with electric capacity end connection, and gas is put pipe other end ground connection.Also having a kind of lightning protection device is that just above-mentioned gas is put pipe and is replaced by the transient state diode.There is following shortcoming in these two kinds of lightning protection devices of the prior art: (1) only adopts one-level gas to put pipe, and is low to the lightning current degree of releasing, the residual voltage height, and distributed capacitance is big, and response speed is slow, poor stability.(2) only there is gas to put pipe or transient state diode, leakage current is arranged, afterflow is arranged, and can not guarantee that gas puts the pipe blow-out.
The utility model content
The purpose of this utility model is that to overcome existing lightning protection device low to the lightning current degree of releasing, the residual voltage height, and distributed capacitance is big, and response speed is slow, and poor stability and leakage current is arranged has the shortcoming of afterflow, and a kind of DC feedback type antenna feeder lightning protection device is provided.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: DC feedback type antenna feeder lightning protection device, comprise input terminal, lead-out terminal, electric capacity, inductance, first gas is put pipe, comprise that also second gas puts pipe, the first two-way transient state diode, the second two-way transient state diode, the 3rd two-way transient state diode and the 4th diode, described first gas is put pipe and is connected with ground wire by the first two-way transient state diode, second gas is put Guan Yiduan is connected lead-out terminal with electric capacity end connection, second gas is put the pipe other end and is connected with the 4th diode cathode, the second two-way transient state diode, the 3rd two-way transient state diode is in parallel with the 4th diode, and the 4th diode cathode is connected with ground wire.
Described first gas is put pipe and is put pipe for the gas of 230V/10KA.
Described second gas is put pipe and is put pipe for the gas of 90V/5KA.
The described first two-way transient state diode is the two-way transient state diode of 10KA.
The described second two-way transient state diode and the 3rd two-way transient state diode are the two-way transient state diode of 5KA.
The model of described the 4th diode is IN5408.
The beneficial effects of the utility model are: adopt the two-stage compound mode to form DC feedback high frequency protection circuit, and adopt gas to put the mode that pipe is connected with the transient state diode in the thunder and lightning leadage circuit of front and back level, make its distributed capacitance minimum, response speed is fast, and relieving capacity is strong, and residual voltage is low, and there are not leakage current, no afterflow, guaranteed that gas puts the blow-out of pipe, good reliability, security performance height.
Description of drawings
Fig. 1 is the utility model electrical block diagram.
Among the figure, GDT1 is that first gas is put pipe, and GDT2 is that second gas is put pipe, and C1 is an electric capacity, and L1 is an inductance, and TVS1 is the first transient state diode, and TVS2 is the second transient state diode, and TVS3 is the 3rd transient state diode, and D1 is the 4th diode.
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
The utility model provides a kind of DC feedback type antenna feeder lightning protection device, has solved that lightning protection device of the prior art is low to the lightning current relieving capacity, residual voltage is high, problems such as leakage current are arranged.It is in parallel with inductance by electric capacity, electric capacity one end is connected with input terminal, the other end is connected with lead-out terminal, first gas is put pipe is connected input terminal with electric capacity end connection, first gas is put pipe and is connected with ground wire by the first two-way transient state diode, second gas is put Guan Yiduan is connected lead-out terminal with electric capacity end connection, second gas is put the pipe other end and is connected with the 4th diode cathode, the second two-way transient state diode, the 3rd two-way transient state diode are in parallel with the 4th diode, and the 4th diode cathode and ground wire connect to form.
Embodiment:
It is that the gas of 230V/10KA is put pipe that first gas of this example is put pipe GDT1, it is that the gas of 90V/5KA is put pipe that second gas is put pipe GDT2, the first two-way transient state diode TVS1 is the two-way transient state diode of 10KA, the second two-way transient state diode TVS2 and the 3rd transient state diode TVS3 are the two-way transient state diode of 5KA, the model of the 4th diode D1 is IN5408, its structural representation such as Fig. 1.
Capacitor C 1 is in parallel with inductance L 1, capacitor C 1 one ends are connected with input terminal, the other end is connected with lead-out terminal, first gas is put pipe GDT1 is connected input terminal with capacitor C 1 end connection, first gas is put pipe GDT1 and is connected with ground wire by the first two-way transient state diode TVS1, second gas is put pipe GDT2 one end is connected lead-out terminal with capacitor C 1 end connection, second gas is put the pipe GDT2 other end and is connected with the 4th diode D1 is anodal, the second two-way transient state diode TVS2, the 3rd two-way transient state diode TVS3 is in parallel with the 4th diode D1, and the 4th diode D1 negative pole and ground wire connect to form DC feedback type antenna feeder lightning protection device.In same cavity, adopt two-stage combination protection mode, and front and back level thunder and lightning leadage circuit adopts gas to put pipe and connects with the transient state diode, make its distributed capacitance minimum, response speed is fast, and relieving capacity is strong, and residual voltage is low, and there are not leakage current, no afterflow, and guarantee that gas puts the blow-out of pipe, good reliability, security performance height.
Wherein, in order to reduce cost and the volume problem, therefore adopt the second two-way transient state diode TVS2 of 5KA and the 3rd two-way transient state diode TVS3 in parallel, rather than directly adopt the two-way transient state diode of 10KA in parallel with the 4th diode D1 with the 4th diode D1.
Claims (6)
1. DC feedback type antenna feeder lightning protection device, comprise input terminal, lead-out terminal, electric capacity, inductance, first gas is put pipe, it is characterized in that, comprise that also second gas puts pipe, the first two-way transient state diode, the second two-way transient state diode, the 3rd two-way transient state diode and the 4th diode, described first gas is put pipe and is connected with ground wire by the first two-way transient state diode, second gas is put Guan Yiduan is connected lead-out terminal with electric capacity end connection, second gas is put the pipe other end and is connected with the 4th diode cathode, the second two-way transient state diode, the 3rd two-way transient state diode is in parallel with the 4th diode, and the 4th diode cathode is connected with ground wire.
2. according to the described DC feedback type of claim 1 antenna feeder lightning protection device, it is characterized in that described first gas is put pipe and put pipe for the gas of 230V/10KA.
3. according to the described DC feedback type of claim 1 antenna feeder lightning protection device, it is characterized in that described second gas is put pipe and put pipe for the gas of 90V/5KA.
4. according to the described DC feedback type of claim 1 antenna feeder lightning protection device, it is characterized in that the described first two-way transient state diode is the two-way transient state diode of 10KA.
5. according to the described DC feedback type of claim 1 antenna feeder lightning protection device, it is characterized in that the described second two-way transient state diode and the 3rd two-way transient state diode are the two-way transient state diode of 5KA.
6. according to claim 1 or 2 or 3 or 4 described DC feedback type antenna feeder lightning protection devices, it is characterized in that the model of described the 4th diode is IN5408.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203106464U CN201518415U (en) | 2009-09-17 | 2009-09-17 | DC power feed type antenna feeder lightning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203106464U CN201518415U (en) | 2009-09-17 | 2009-09-17 | DC power feed type antenna feeder lightning protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201518415U true CN201518415U (en) | 2010-06-30 |
Family
ID=42499137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203106464U Expired - Lifetime CN201518415U (en) | 2009-09-17 | 2009-09-17 | DC power feed type antenna feeder lightning protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201518415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102781145A (en) * | 2012-07-27 | 2012-11-14 | 贵州索立得光电科技有限公司 | LED (light emitting diode) drive power circuit |
-
2009
- 2009-09-17 CN CN2009203106464U patent/CN201518415U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102781145A (en) * | 2012-07-27 | 2012-11-14 | 贵州索立得光电科技有限公司 | LED (light emitting diode) drive power circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100630 |