CN208723549U - A kind of transient overvoltage isolating device and isolation circuit - Google Patents
A kind of transient overvoltage isolating device and isolation circuit Download PDFInfo
- Publication number
- CN208723549U CN208723549U CN201821600294.1U CN201821600294U CN208723549U CN 208723549 U CN208723549 U CN 208723549U CN 201821600294 U CN201821600294 U CN 201821600294U CN 208723549 U CN208723549 U CN 208723549U
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- China
- Prior art keywords
- isolating device
- transient overvoltage
- inductance coil
- connect
- bottom plate
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Abstract
The utility model proposes a kind of transient overvoltage isolating device and isolation circuits, transient overvoltage isolating device includes bottom plate, the bottom plate is equipped with several inductance coils for being used to inhibit lightning surge energy, the both ends of the inductance coil are connected with connecting terminal, and the connecting terminal is connected with electric wire of plugging into.A kind of transient overvoltage isolating device inhibits lightning surge energy by the inductance coil being equipped with, and inductance coil density and inductance can be by actual demand coilings.Transient overvoltage isolating device is connected to three-phase circuit by a kind of isolation circuit, and is connected in parallel in electrical equipment, is conducted between devices with inhibiting and being isolated lightning current, electric current when for working normally, and is in Low ESR, does not influence equipment normal operation；It is in high impedance for surge current, to bear most surge voltages by partial pressure to protect subsequent port.
Description
Technical field
The utility model relates to microcell base station surges to invade channel intelligence isolating and protecting field, more specifically refer to one
Kind transient overvoltage isolating device and isolation circuit.
Background technique
When lightning stroke occurs, can occur simultaneously at communication base station AC power cord, antenna feeder, optical cable strengthening core and lightning rod
Surge current intrusion, since these ports show as inductive or high resistant resistance, works as end when lightning voltage invades each port
Mouth over the ground (ground may be the ground connection of lightning protection component, chassics earth, it is also possible to DC power supply place of working) impedance lower than its
When breakdown impedance, surge current will pass through the channel.The SPD of port exactly bypasses surge current in this way, after protection
End equipment.But since there is casing protective grounding, DC power system working earthing, thunder and lightning waves in a communications system
Gushing electric current and would be possible through each port breakdown port leads to equipment damage to casing, to power work Grounding.It is this
Phenomenon has become the common cause of network and equipment downtime, reset, damage.
Same reason, when lightning stroke lightning rod is to ground discharge, when increasing grounded screen ground potential, lightning surge electric current
Make the path deterioration to power supply line, signal line port electric discharge possibly through ground.Which can damage as specific lightning fault
Port, which channel are then determined by the impedance in which channel over the ground of network or equipment at that time.
When two longer or lightning surge electric currents of device space distance are larger, joint grounding ground potential is increased, in electricity
Under the action of bridge principle, two equipment rooms can generate very high voltage difference, this is another major reason of port damage, and logical
The weak link of normal lightning protection.Therefore a kind of device that can inhibit lightning surge energy is needed.
Utility model content
The purpose of the utility model is to overcome defects of the existing technology, provide a kind of transient overvoltage isolating device
With circuit.
To achieve the above object, the utility model uses following technical scheme:
A kind of transient overvoltage isolating device, including bottom plate, the bottom plate are equipped with several for inhibiting thunder and lightning unrestrained
The inductance coil of energy is gushed, the both ends of the inductance coil are connected with connecting terminal, and the connecting terminal is connected with electricity of plugging into
Line.
Its further technical solution are as follows: the quantity of the inductance coil is that inductance coil described in four, four is set side by side
It sets.
Its further technical solution are as follows: the outer surface of the inductance coil is equipped with insulating sheath.
Its further technical solution are as follows: it further include cover, the cover is equipped with groove corresponding with the connecting terminal,
The cover is with bottom plate connection cover together in the top of the inductance coil.
A kind of isolation circuit based on a kind of transient overvoltage isolating device described in any of the above one, including is combined and is connect
Ground row and transient overvoltage isolating device described in two, the joint grounding row connect with earth mat, one of them described transient state
Overvoltage isolating device one end is connect with triple line, and the other end is connect with electrical equipment, another described transient overvoltage isolation
Device one end is connect with electrical equipment, and the other end and joint grounding row connect；The transient state connecting with triple line is excessively electric
Pressure isolating device both ends are connected separately with a SPD unit, and the other end of two SPD units connects the joint grounding row.
Its further technical solution are as follows: the transient overvoltage isolating device that the electrical equipment is connect with triple line it
Between be equipped with power switch, the power switch anode connect with transient overvoltage isolating device described in another.
The beneficial effect of the utility model compared with prior art is: a kind of transient overvoltage isolating device of the utility model
Inhibit lightning surge energy by the inductance coil being equipped with, and inductance coil density and inductance can by actual demand around
System.Transient overvoltage isolating device is connected to three-phase circuit by a kind of isolation circuit, and is connected in parallel in electrical equipment, to inhibit
It being conducted between devices with isolation lightning current, electric current when for working normally, being in Low ESR, do not influence equipment normal operation；
It is in high impedance for surge current, to bear most surge voltages by partial pressure to protect subsequent port.
The utility model is further described in the following with reference to the drawings and specific embodiments.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of transient overvoltage isolating device of the utility model；
Fig. 2 is a kind of structural schematic diagram of transient overvoltage isolating device of the utility model；
Fig. 3 is a kind of schematic diagram of isolation circuit of the utility model.
Appended drawing reference
10 transient overvoltage isolating device, 11 bottom plate
12 inductance coil, 13 connecting terminal
14 insulating sheath, 15 cover
Specific embodiment
In order to more fully understand the technology contents of the utility model, combined with specific embodiments below to the skill of the utility model
Art scheme is further described and illustrates, but not limited to this.
As shown in Figure 1 to Figure 3, a kind of transient overvoltage isolating device 10, including bottom plate 11, bottom plate 11 are equipped with several
For inhibiting the inductance coil 12 of lightning surge energy, the both ends of inductance coil 12 are connected with connecting terminal 13, connecting terminal 13
It is connected with electric wire of plugging into.For electric wire of plugging into for connecting with external circuit, voltage isolation device uses noncrystal magnetic core, height insulation magnetic
Ring, pressure resistance isolation low pressure are greater than 25kV, bandwidth are isolated.Inductance coil 12 in transient overvoltage isolating device 10 inhibit and every
It being conducted between devices from lightning current, electric current when for working normally, being in Low ESR, do not influence equipment normal operation；For
Surge current is in high impedance, to bear most surge voltages by partial pressure to protect subsequent port.
Specifically, as shown in Figure 1 to Figure 2, the quantity of inductance coil 12 is four, and four inductance coils 12 are arranged side by side.
Specifically, as shown in Figure 1 to Figure 2, bandwidth is isolated in transient overvoltage isolating device 10, high pressure resistant；Inductance coil
12 inside magnet rings use amorphous material, avoid the magnetic saturation under high frequency over-voltage condition, connect between copper coil strict control
Away from, increase disruptive discharge voltage, while conductive line surfaces coat high pressure resistant high-temperature insulation paint, increase dielectric strength, in key position
Infusion epoxy resin increases dielectric strength.
Specifically, as shown in Figure 1 to Figure 2, the outer surface of inductance coil 12 is equipped with insulating sheath 14, to guarantee inductance coil
Mutually insulated between 12.
Specifically, 12 density of inductance coil and element inductors amount press actual demand coiling.
Specifically, as shown in Fig. 2, further including cover 15, cover 15 is equipped with groove corresponding with connecting terminal 13, cover
15 with 11 connection cover of bottom plate together in inductance coil 12 top.
Specifically, transient overvoltage isolating device 10 is the device of with inhibiting equipment overvoltage and overcurrent.It is in when normal
High impedance is connected in parallel in circuitry, works equipment without influence.When being struck by lightning, powerful lightning current surge energy can be born
It measures and discharges, be in low impedance state, external shock excess energy completely or partially can be released rapidly, the response time is exceedingly fast,
Moment is restored to usually high-impedance state again.
As shown in figure 3, a kind of isolation circuit, based on a kind of transient overvoltage isolating device described in any of the above one
10, including joint grounding is arranged and two transient overvoltage isolating devices 10, joint grounding row connect with earth mat, one of transient state
10 one end of overvoltage isolating device is connect with triple line, and the other end is connect with electrical equipment, another transient overvoltage isolation dress
It sets 10 one end to connect with electrical equipment, the other end and joint grounding row connect；Dress is isolated with the transient overvoltage of triple line connection
It sets 10 both ends and is connected separately with a SPD unit, the other end connection joint grounding row of two SPD units.Transient overvoltage isolation
Device 10 works without influence on equipment in voltage isolation circuit.When being struck by lightning, powerful lightning current surge energy can be born
And discharge, it is in low impedance state, external shock excess energy completely or partially can be released rapidly, the response time is exceedingly fast, wink
Between be restored to usually high-impedance state again.
Specifically, SPD unit is Surge Protector, is also lightning protection device, be it is a kind of for various electronic equipments, instrument and meter,
The electronic device of communication line offer security protection.When the interference in electric loop or communication line because of the external world generates suddenly
When peak current or voltage, shunting can be connected in Surge Protector in a very short period of time, to avoid surge to its in circuit
The damage of his equipment.
Specifically, as shown in figure 3, electrical equipment includes main equipment and other equipment, main equipment is connect temporary with triple line
Power switch, anode and another transient overvoltage isolating device 10 of power switch are equipped between state overvoltage isolating device 10
Connection.
Specifically, as shown in figure 3, other equipment are directly attached with triple line.
Specifically, on the basis of joint grounding, the working earthing in communication base station, protective grounding, lightning protection are pressed
After function grouping, installation has the transient overvoltage of decaying and buffer action between place of working, protecting field and union ground grid
Isolating device 10 reduces to reach since thunder and lightning makes ground potential increase the influence to place of working, protection ground potential, thus also
Reduce work ground potential, the response sensitivity of protection ground potential docking ground resistance value and the requirement to grounding resistance.
In conclusion a kind of transient overvoltage isolating device of the utility model inhibits thunder and lightning by the inductance coil being equipped with
Surge energy, and inductance coil density and inductance can be by actual demand coilings.A kind of isolation circuit by transient overvoltage every
It is connected to three-phase circuit from device, and is connected in parallel in electrical equipment, is conducted between devices with inhibiting and being isolated lightning current, it is right
Electric current when working normally is in Low ESR, does not influence equipment normal operation；It is in high impedance, to pass through for surge current
Partial pressure bears most surge voltages to protect subsequent port.
The above-mentioned technology contents that the utility model is only further illustrated with embodiment, in order to which reader is easier to understand,
But the embodiments of the present invention is not represented is only limitted to this, any technology done according to the utility model extends or recreation,
By the protection of the utility model.The protection scope of the utility model is subject to claims.
Claims (6)
1. a kind of transient overvoltage isolating device, which is characterized in that including bottom plate, the bottom plate is equipped with several for pressing down
The inductance coil of lightning surge energy processed, the both ends of the inductance coil are connected with connecting terminal, the connecting terminal connection
It plugs into electric wire.
2. a kind of transient overvoltage isolating device according to claim 1, which is characterized in that the quantity of the inductance coil
It is that inductance coil described in four, four is arranged side by side.
3. a kind of transient overvoltage isolating device according to claim 2, which is characterized in that the appearance of the inductance coil
Face is equipped with insulating sheath.
4. a kind of transient overvoltage isolating device according to claim 1, which is characterized in that it further include cover, the face
Groove corresponding with the connecting terminal, the cover and bottom plate connection cover are covered with together in the top of the inductance coil.
5. a kind of isolation circuit, based on a kind of transient overvoltage isolating device, feature described in claim 1-4 any one
It is, including transient overvoltage isolating device described in joint grounding row and two, the joint grounding row connect with earth mat,
In a transient overvoltage isolating device one end connect with triple line, the other end is connect with electrical equipment, described in another
Transient overvoltage isolating device one end is connect with electrical equipment, and the other end and joint grounding row connect；It is connect with triple line
Transient overvoltage isolating device both ends be connected separately with a SPD unit, the other end of two SPD units connects institute
State joint grounding row.
6. a kind of isolation circuit according to claim 5, which is characterized in that the institute that the electrical equipment is connect with triple line
It states and is equipped with power switch between transient overvoltage isolating device, anode and another described transient overvoltage of the power switch
Isolating device connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821600294.1U CN208723549U (en) | 2018-09-29 | 2018-09-29 | A kind of transient overvoltage isolating device and isolation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821600294.1U CN208723549U (en) | 2018-09-29 | 2018-09-29 | A kind of transient overvoltage isolating device and isolation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208723549U true CN208723549U (en) | 2019-04-09 |
Family
ID=65982974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821600294.1U Expired - Fee Related CN208723549U (en) | 2018-09-29 | 2018-09-29 | A kind of transient overvoltage isolating device and isolation circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208723549U (en) |
-
2018
- 2018-09-29 CN CN201821600294.1U patent/CN208723549U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190409 Termination date: 20190929 |