CN215498270U - Multifunctional lightning protection box - Google Patents
Multifunctional lightning protection box Download PDFInfo
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- CN215498270U CN215498270U CN202121795903.5U CN202121795903U CN215498270U CN 215498270 U CN215498270 U CN 215498270U CN 202121795903 U CN202121795903 U CN 202121795903U CN 215498270 U CN215498270 U CN 215498270U
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- 239000011248 coating agent Substances 0.000 claims description 3
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- 239000007789 gas Substances 0.000 description 30
- 238000004891 communication Methods 0.000 description 5
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- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses a multifunctional thunder and lightning protection box which comprises a box body, wherein the box body is provided with an outer end interface, the outer end interface is connected with a protection module through a lead, the protection module comprises a power supply protection module and a signal protection module, the power supply protection module is connected between the outer end interface and rear-end equipment, the signal protection module comprises a resistor, a gas discharge tube, a glass electronic tube fuse and a transient suppression diode, the gas discharge tube is close to a voltage input end, the resistor is connected close to a voltage output end of the gas discharge tube, and the glass electronic tube fuse is located between the resistor and the transient suppression diode. When strong electric pulse attacks equipment, the power supply port and the signal port are protected through the power supply protection module and the signal protection module respectively, and double protection is provided for a circuit. After the resistor and the transient suppression diode are broken down, the glass electronic tube fuse is instantly fused, so that the device is protected, the device can be effectively prevented from being damaged, and the service life of the rear-end device is prolonged.
Description
Technical Field
The utility model relates to the field of lightning protection, in particular to a multifunctional lightning protection box.
Background
With the increasing integration of information technology, the development of electronic device integration, ultra-large scale integration and new network communication technology has played a great promotion and promotion role for the development of a technology supporting the leading technology support product in the information era, but on the other hand, the microelectronic instruments and devices generally have the fatal weaknesses of low insulation strength, poor overvoltage tolerance and the like, once the microelectronic instruments and devices are impacted by lightning stroke overvoltage, the operation of the electronic systems is interrupted slightly, the devices are permanently damaged, the immeasurable direct and indirect huge economic loss and influence caused by the breakdown of the subsequent work needing to be operated in real time and carried by the systems are serious, the lightning is classified as one of eight natural disasters with great harm to human society, the induced lightning stroke comprises two types of static induction and lightning electromagnetic induction, the induced extremely strong lightning stroke (overcurrent) and the alternating electromagnetic field are caused by the extremely strong lightning stroke (overcurrent) and the damage to the weak electric devices The main reasons are, for example: when lightning is introduced into the distribution line, after the distribution line generates overvoltage, the overvoltage is directly transmitted to weak electronic equipment, and the equipment is damaged, generally the power supply part of the equipment; when lightning is introduced into a communication control line, after the communication control line (the communication control line generally comprises a data special line, a telephone line, a network line, a data control line, a video line and the like) induces the lightning, the lightning is also directly transmitted to equipment, the equipment is damaged, and a communication port of the equipment is generally damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a multifunctional lightning protection box.
The purpose of the utility model is realized by the following technical scheme: the utility model provides a multi-functional thunder and lightning protection case, the power distribution box comprises a box body, the box is provided with the outer end interface, the outer end interface passes through the wire and is connected with protection module, protection module passes through the wire and connects rear end equipment, protection module includes power protection module and signal protection module, power protection module connects between outer end interface and rear end equipment, signal protection module includes resistance, gas discharge tube, glass electron tube fuse and transient state restrain the diode, gas discharge tube is close to the voltage input end, resistance is close to the voltage output end connection of gas discharge tube, glass electron tube fuse is located between resistance and the transient state restrain the diode.
Preferably, the external end interface comprises a power port and a signal port, the signal port comprises one or more of a video port, a telephone port, and a network port, the external end interface and the gas discharge tube form a loop, and the gas discharge tube is located between the external end interface and the back-end device.
Preferably, the power protection module comprises a pressure-sensitive module, a gas discharge tube and an air switch, the pressure-sensitive modules and the gas discharge tube are connected into a matrix type protection circuit which is combined in series and parallel, and the air switch is connected in series at the front end of the gas protection tube.
Preferably, when the signal port comprises a network port, two gas discharge tubes are installed between two corresponding pins on the network port, the gas discharge tubes are in parallel connection, and the gas discharge tube close to the rear-end equipment is grounded.
Preferably, the breakdown voltage of the resistor is lower than the breakdown voltage of the glass valve fuse.
Preferably, the outer end interface of the box body is divided into a power port, a network port, a telephone port and a video port, the telephone port and the network port are located between the power port and the video port, the network port is close to the power port, a standby power port is installed on the outer side of the power port, the outer end interface is provided with two interfaces, and the input end of the outer end interface is located above the output end.
Preferably, the outer surface of the box body is also provided with a high-conductivity coating.
The utility model has the following advantages: when strong electric pulse attacks equipment, a power supply port and a signal port are respectively protected by a power supply protection module and a signal protection module, the power supply protection module is connected with a gas discharge tube through a plurality of pressure-sensitive modules to form a matrix type protection circuit connected in series or in parallel for protection, and a glass electronic tube fuse in the signal protection module is positioned between a resistor and a transient suppression diode, so that double protection is provided for the circuit. After the resistor and the transient suppression diode are broken down, the glass electronic tube fuse is instantly fused to protect the rear-end equipment, so that the equipment is protected, the equipment can be effectively prevented from being damaged, and the service life of the rear-end equipment is prolonged.
Drawings
FIG. 1 is a schematic diagram of a circuit schematic of a protection module;
FIG. 2 is a schematic diagram of the signal portion schematic;
FIG. 3 is a schematic structural diagram of a protection module;
FIG. 4 is a schematic structural diagram of an external port;
FIG. 5 is a schematic structural view of the inner cover plate;
in the figure, 1-resistor, 2-glass tube fuse, 3-backend device, 4-video port, 5-telephone port, 6-network port, 7-power port, 8-standby power port, 11-gas discharge tube, 12-transient suppression diode, 13-via a, 14-via b, 15-via c.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In this embodiment, as shown in fig. 1 and fig. 3, a multifunctional lightning protection box, comprises a box body, the box body is provided with an outer end interface, the outer end interface is connected with a protection module through a wire, the protection module is connected with a rear-end device 3 through a wire, the protection module comprises a power protection module and a signal protection module, the power protection module is connected between the outer end interface and the rear-end device 3, the signal protection module comprises a resistor 1, a gas discharge tube 11, a glass fuse 2 and a transient suppression diode 12, the gas discharge tube 11 is close to a voltage input end, the resistor 1 is connected close to a voltage output end of the gas discharge tube 11, the glass fuse 2 is located between the resistor 1 and the transient suppression diode 12, and the multifunctional lightning protection box is preferable, the glass fuse 2 adopts a plug installation mode, and is convenient to damage and can be replaced at any time. The transient suppression diode 12 is of the voltage clamp type and can absorb up to several kilowatts of surge energy. Under the condition of reverse application, when the transient suppression diode 12 is impacted by a high-energy large pulse, the working impedance of the transient suppression diode 12 can be rapidly reduced to an extremely low conduction value at the speed of 10-12 s magnitude, so that a large current can pass through the transient suppression diode, and the voltage is suppressed to a preset level, so that a precise electronic element in a subsequent circuit is effectively protected, the transient suppression diode 12 is used in a two-stage protection circuit and a three-stage protection circuit, in the embodiment, the transient suppression diode 12 is connected in the protection circuit in series with the diode, and the diode is respectively connected into the circuit in the forward direction and the reverse direction, so that the influence of junction capacitance on the transient suppression diode 12 during filtering is reduced, the electromagnetic pulse at the fast rising front edge is released, and the reliability of pulse suppression at the output end of the protection module is ensured. Furthermore, the breakdown voltage of the resistor 1 is lower than the breakdown voltage of the glass electron tube fuse 2, the glass electron tube fuse 2 is connected to the rear end of the resistor 1, double protection is provided for a circuit, and when the electronic pulse is too large, the resistor 1 and the transient suppression diode 12 are broken down, the glass electron tube fuse 2 is instantly fused, and rear-end equipment is protected. The rear-end equipment 3 on the circuit can be effectively prevented from being damaged, and the service life of the rear-end equipment is prolonged.
As shown in fig. 2, the external port includes a power port 7 and signal ports including one or more of a video port 4, a telephone port 5, and a network port 6. In this embodiment, the outer end interface includes video port 4, telephone port 5 and network port 6, and further, the outer end interface of box divide into power port 7, network port 6, telephone port 5 and video port 4, and telephone port 5 and network port 6 are located between power port 7 and the video port 4, and network port 6 is close to power port 7, and backup power port 8 is installed in power port 7's the outside, and two interfaces have all been seted up to the outer end interface, just the input of outer end interface is located the top of output. When the outer end interface includes the network port, install two gas discharge tube 11 between two corresponding pins on the network port, and gas discharge tube 11 is the parallel relation, and the gas discharge tube 11 that is close to rear end equipment 3 is ground connection, and outer end interface and gas discharge tube 11 form the return circuit, and gas discharge tube 11 is located between outer end interface and rear end equipment 3. Further, the power protection module includes pressure sensitive module (not shown in the figure), gas discharge tube 11 and air switch (not shown in the figure), a plurality of pressure sensitive modules and gas discharge tube 11 connect into the matrix protection circuit who establishes ties and parallelly connected combine together, air switch establishes ties at the front end of gas protection tube 11, after pressure sensitive module short circuit degradation, when unable and power disconnection, air switch trips immediately, with multi-functional thunder and lightning protection case and 220VAC power cut off, avoid the guard box conflagration to take place, keep apart with rear end equipment simultaneously, protective apparatus. The gas discharge tube 11 is filled with inert gas, because the response speed of the gas discharge tube 11 to the surge voltage is low, in this embodiment, the gas discharge tube 11 is used for a primary protection circuit, and mainly discharges electromagnetic pulses with large energy, and for some pulses with fast leading edges, the gas discharge tube 11 can also discharge a part of energy after response. When the voltage at two ends of the tube exceeds the breakdown voltage, the gas in the tube is ionized to be close to a short-circuit state, and most transient energy is transferred. The gas discharge tube 11 has a high insulation resistance and a small parasitic capacitance, and does not adversely affect the normal operation of the apparatus.
In this embodiment, the outer surface of the box body is further provided with a highly conductive coating, as shown in fig. 5, and the inner cover plate of the box body is provided with through holes for video signal protection, telephone signal protection and network signal protection. Specifically, there is one through hole a13 for mounting a video signal protection circuit; two through holes b14 are used for installing video signal protection circuits; eight through holes c15 are used for installing the network signal protection circuit, and the through hole a13, the through hole b14 and the through hole c15 are in the same straight line.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.
Claims (7)
1. The utility model provides a multi-functional lightning protection case which characterized in that: the power distribution box comprises a box body, the box is provided with the outer end interface, the outer end interface passes through the wire and is connected with protection module, protection module passes through the wire and connects rear end equipment (3), protection module includes power protection module and signal protection module, power protection module connects the outer end interface with between rear end equipment (3), signal protection module includes resistance (1), gas discharge tube (11), glass electron tube fuse (2) and transient state suppression diode (12), gas discharge tube (11) are close to voltage input end, resistance (1) are close to the voltage output end of gas discharge tube (11) is connected, glass electron tube fuse (2) are located resistance (1) with between transient state suppression diode (12).
2. The multifunctional lightning protection box according to claim 1, characterized in that: the external end interface comprises a power port (7) and a signal port, the signal port comprises one or more of a video port (4), a telephone port (5) and a network port (6), the external end interface and the gas discharge tube (11) form a loop, and the gas discharge tube (11) is positioned between the external end interface and the back-end equipment (3).
3. The multifunctional lightning protection box according to claim 1, characterized in that: the power protection module includes pressure-sensitive module gas discharge tube (11) and air switch, and is a plurality of pressure-sensitive module with gas discharge tube (11) connect into the matrix protection circuit who establishes ties and parallelly connected combine together, air switch establishes ties the front end of gas discharge tube (11).
4. The multifunctional lightning protection box according to claim 2, characterized in that: when the signal port comprises the network port (6), two gas discharge tubes (11) are arranged between two corresponding pins on the network port (6), the gas discharge tubes (11) are connected in parallel, and the gas discharge tubes (11) close to the rear-end equipment (3) are grounded.
5. The multifunctional lightning protection box according to claim 1, characterized in that: the breakdown voltage of the resistor (1) is lower than the breakdown voltage of the glass valve fuse (2).
6. The multifunctional lightning protection box according to claim 1, characterized in that: the outer end interface of box divide into power port (7), network port (6), phone port (5) and video port (4), phone port (5) with network port (6) are located power port (7) with between video port (4), just network port (6) are close to power port (7), reserve power port (8) are installed in the outside of power port (7), two interfaces have all been seted up to the outer end interface, just the input of outer end interface is located the top of output.
7. The multifunctional lightning protection box according to claim 6, characterized in that: the outer surface of the box body is also provided with a high-conductivity coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121795903.5U CN215498270U (en) | 2021-08-03 | 2021-08-03 | Multifunctional lightning protection box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121795903.5U CN215498270U (en) | 2021-08-03 | 2021-08-03 | Multifunctional lightning protection box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215498270U true CN215498270U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121795903.5U Active CN215498270U (en) | 2021-08-03 | 2021-08-03 | Multifunctional lightning protection box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215498270U (en) |
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2021
- 2021-08-03 CN CN202121795903.5U patent/CN215498270U/en active Active
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