CN117954975A - Communication distribution box - Google Patents

Abstract

The application discloses a communication distribution box, and relates to the field of distribution boxes. The problem of communication block terminal normal operating produce high temperature influence on the judgment of firing is solved. The communication distribution box comprises a box body and a heat radiating device, wherein the heat radiating device comprises a heat absorbing part, a heat radiating part and a fan, the heat absorbing part comprises a heat absorbing pipeline, and the fan is used for introducing air in a mounting cavity into the heat absorbing pipeline through an air inlet and discharging the air through an air outlet. When the air in the installation cavity is introduced into the heat absorption pipeline, the heat in the installation cavity is transferred to the heat absorption part, the heat absorption part transfers the absorbed heat to the heat dissipation part, and the heat dissipation part transfers the heat to the space outside the box body, so that the temperature of the installation cavity cannot continuously rise, and the high temperature in the installation cavity cannot be generated to interfere with fire judgment.

Description

Communication distribution box

Technical Field

The invention relates to the field of distribution boxes, in particular to a communication distribution box.

Background

A communication distribution box is an electrical distribution device for mounting and connecting communication devices, and is typically mounted in the vicinity of the communication device to provide a stable power source and a secure electrical connection for the device.

When the communication distribution box is used, the types of the internal equipment are complex and the number of the internal equipment is large, a large amount of heat can be generated in the normal use process of the communication distribution box, and the heat accumulation can become fire hazards. The communication distribution box catches fire, and light causes business interruption, property loss and environmental pollution, and heavy causes personal injury.

In the related art, the communication distribution box body is provided with a heat dissipation hole, and hot air and external cold air in the box body are subjected to heat exchange through the heat dissipation hole to dissipate heat, so that the heat dissipation efficiency is low.

Disclosure of Invention

The application provides a communication distribution box which is used for solving the problem of low heat dissipation efficiency of the communication distribution box.

In order to achieve the above purpose, the application adopts the following technical scheme:

The utility model provides a communication block terminal includes box and heat abstractor, and the box is formed with the installation cavity and with the mounting hole of installation cavity intercommunication, and heat abstractor sets up in the mounting hole, and heat abstractor includes heat absorption portion, heat dissipation portion and fan. The heat absorption part comprises a heat absorption pipeline, an air inlet and an air outlet of the heat absorption pipeline are communicated with the installation cavity, the heat dissipation part is located on one side of the heat absorption part away from the installation cavity and connected with the heat absorption part, heat of the heat absorption part is transferred to the outside of the box, and the fan is used for introducing air in the installation cavity into the heat absorption pipeline through the air inlet and discharging the air through the air outlet.

In the installation cavity, equipment normal operating produces heat, make the air temperature in the installation cavity rise, the air that the temperature risees gets into the heat absorption pipeline from the air intake under the fan effect, the air reduces at heat absorption pipeline and heat absorption portion abundant heat transfer back temperature, heat absorption portion is with absorbing heat transfer to the radiating portion, the radiating portion is with the heat transfer to the outside space of box, from this the heat transfer that the installation cavity produced to the external world, and the air after the cooling gets into the installation cavity from the air outlet, mix with the air in the installation cavity, make the temperature in the installation cavity can not continuously rise, heat abstractor continuously with the heat transfer in the installation cavity to the external world, thereby reach the purpose that makes radiating efficiency improve, still avoid the temperature that the heat accumulation of installation cavity leads to continuously rising simultaneously, reduce the conflagration and take place the hidden danger.

Further, the heat dissipating device further comprises a heat conducting part, and the heat conducting part is connected with the heat absorbing part and the heat dissipating part and is used for transferring heat of the heat absorbing part to the heat dissipating part.

Further, the heat conducting part is a refrigerating sheet.

Further, the communication distribution box further comprises a fire extinguishing device, the fire extinguishing device comprises a fire extinguishing air source and a gas transmission system, wherein the fire extinguishing air source is connected with the box body and used for storing fire extinguishing air, and the gas transmission system is communicated with the gas outlet of the fire extinguishing air source and communicated with the installation cavity.

Further, the box includes vent and baffle, and the baffle includes open condition and closed condition, and the baffle is under the condition of open condition, and the vent is opened to the baffle, and intercommunication installation cavity and external world, baffle under the condition of closed condition, baffle closed vent, separation installation cavity and external world. Under the condition that the gas transmission system fills fire extinguishing gas into the installation cavity, the baffle is in one of an open state and a closed state; in the case where the gas delivery system is not charging the installation cavity with the fire extinguishing gas, the shutter is in the other of the open state and the closed state.

Further, the gas transmission system comprises an air bag and a gas transmission pipe, the inlet of the air bag is communicated with the gas outlet of the fire extinguishing gas source, the gas transmission pipe is communicated with the outlet of the air bag, the gas transmission pipe is communicated with the installation cavity, the air bag is inflated and drives the baffle to switch from an open state to a closed state under the condition that the gas transmission system fills fire extinguishing gas into the installation cavity, and the baffle is in the open state under the condition that the gas transmission system does not fill fire extinguishing gas into the installation cavity.

Further, the gas transmission system further comprises a reset device, the reset device is arranged at the vent and connected with the box body, a placing cavity is formed in the reset device, the placing cavity is located in the vertical direction of the axis of the vent, the air bag is arranged in the placing cavity, and the baffle can move between the placing cavity and the vent.

The baffle is in the condition of open state, and the baffle is located and places the chamber, and the baffle is in the condition of closed state, and the baffle is located vent department.

Further, the resetting device further comprises an elastic piece, the elastic piece is connected with the baffle, the elastic piece is connected with the placing cavity, the elastic piece generates elastic deformation under the condition that the air bag is inflated and drives the baffle to switch from the opening state to the closing state, and the elastic piece can generate restoring force for driving the baffle to move from the closing state to the opening state.

Further, the box body further comprises a dust screen, the dust screen is arranged at the ventilation opening, and the dust screen is connected with the box body.

Further, the communication distribution box further comprises a driving device, the driving device comprises an exhaust piece and a driving piece, the exhaust piece is connected with the heat absorption part and used for exhausting air passing through the heat absorption part to the installation cavity through the exhaust piece, the exhaust piece is further connected with the gas transmission system and used for exhausting fire extinguishing gas to the installation cavity, the driving piece is connected with the box body, and the driving piece is in transmission connection with the exhaust piece.

Further, the fire extinguishing device further comprises an electromagnetic valve, the electromagnetic valve is arranged between the gas transmission system and the fire extinguishing gas source and is connected with the gas transmission system and the fire extinguishing gas source, the electromagnetic valve is provided with an opening state and a closing state, when the electromagnetic valve is in the opening state, the fire extinguishing gas source charges fire extinguishing gas to the gas transmission system, and when the electromagnetic valve is in the closing state, the fire extinguishing gas source stops charging fire extinguishing gas to the gas transmission system.

Further, the communication distribution box further comprises a detector and a controller, the detector is arranged in the installation cavity and connected with the controller, the controller is arranged on the outer side of the box body, and the controller is electrically connected with the fan, the driving piece and the electromagnetic valve of the fire extinguishing device respectively.

Further, the detector further comprises a temperature detector and a smoke detector, the temperature detector is electrically connected with the controller, the temperature detector is used for detecting the temperature in the installation cavity, the temperature detector is configured to send an electric signal to the controller when the temperature of the installation cavity rises, the controller is configured to control the driving device and the fan according to the electric signal provided by the temperature detector, and/or the smoke detector is electrically connected with the controller, the smoke detector is used for detecting the smoke concentration in the installation cavity, the temperature detector is configured to send an electric signal to the controller when the smoke concentration in the installation cavity rises, and the controller is configured to control the electromagnetic valve according to the electric signal provided by the smoke detector.

Further, the communication distribution box further comprises a sealing device, the box body is provided with a wire outlet hole, the wire outlet hole is used for reserving space for a circuit, the sealing device is arranged at the position of the wire outlet hole and is connected with the box body, the sealing device comprises a flexible sleeve and a pull rope, the flexible sleeve is arranged at the position of the wire outlet hole and is connected with the box body, the pull rope is arranged outside the flexible sleeve, and the pull rope is used for tightening the flexible sleeve.

Drawings

Fig. 1 is a schematic structural diagram of a communication distribution box according to an embodiment of the present application;

Fig. 2 is a second schematic structural diagram of a communication distribution box according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a cooling device according to an embodiment of the present application;

Fig. 4 is an enlarged schematic view of a structure at a in fig. 1 according to an embodiment of the present application;

FIG. 5 is an enlarged schematic view of the structure of FIG. 2 according to an embodiment of the present application;

FIG. 6 is a schematic view of an airbag according to an embodiment of the present application;

fig. 7 is a third schematic structural diagram of a communication distribution box according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a communication distribution box according to an embodiment of the present application;

fig. 9 is a schematic diagram of a communication distribution box according to an embodiment of the present application;

fig. 10 is an enlarged schematic view of the structure at C in fig. 1 according to an embodiment of the present application.

Reference numerals: 1-a box body; 11-a mounting cavity; 12-ventilation openings; 13-a baffle; 14-a dust screen; 15-wire outlet holes;

2-a cooling device; 21-a heat absorbing part; 211-heat absorption pipeline; 212-an air inlet; 213-air outlet; 22-a heat dissipation part; 23-a heat conduction part; 24-fans;

3-a fire extinguishing device; 31-a fire suppressing gas source; 312-air outlet; 32-a gas delivery system; 321-a balloon; 3211-import; 3212-outlet; 3213-inflation channel; 323-reset means; 3231-Placement lumen; 3232-an elastic member; 3233—a telescopic rod; 33-solenoid valve;

4-a driving device; 41-a driving member; 42-an exhaust; 43-a transmission rod; 44-a guide bar; 45-connecting pipes;

a 5-detector; 51-a temperature detector; 52-smoke detector;

6-a controller;

7-sealing means; 71-a flexible sleeve; 72-pulling ropes;

8-power supply device.

Detailed Description

Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

A communication distribution box is an electrical distribution device for installing and connecting communication devices. It typically includes a power input terminal, a fuse or circuit breaker, a fuse, a ground terminal, and a socket for connecting a cable. The communication distribution box is used for providing power for communication equipment. It is typically mounted in the vicinity of a communication device in order to provide a stable power supply and a secure electrical connection for the device.

The communication distribution box may fire in the use, has the conflagration hidden danger, and once the conflagration breaks out, can cause communication equipment, building and other property's damage, needs a large amount of funds to repair or change. And the communication equipment can stop working, thereby affecting the normal operation of the service and causing service interruption and loss. And in severe cases, may lead to injury and even death of the person.

When the communication distribution box internal equipment normally operates, a large amount of heat can be generated, heat dissipation is conducted through the heat dissipation holes formed in the box body in the related art, but as the type of the communication distribution box internal equipment is complex, the electricity consumption and the quantity of the internal equipment are improved, the heat generated by the internal equipment is also improved, the heat dissipation requirements cannot be met by the heat dissipation holes, and the heat is accumulated in the communication distribution box to cause fire hazards, so that the problem of low heat dissipation efficiency in the related art is required to be solved.

As shown in fig. 1, the communication distribution box provided by the application comprises a box body 1, wherein a mounting cavity 11 is formed in the box body 1, and related devices such as a power input terminal, a fuse or a circuit breaker, a fuse, a grounding terminal, a socket for connecting a cable and the like are mounted in the mounting cavity 11. The box body 1 provides protection for equipment in the installation cavity 11, and the installation cavity 11 is protected from being damaged by the outside of the box body 1.

The installation cavity 11 provides installation space for electrical components such as power input terminals, fuses or circuit breakers, fuses, ground terminals and sockets for connection cables, and for convenience of description, electrical components such as power input terminals, fuses or circuit breakers, fuses, ground terminals and sockets for connection cables installed in the installation cavity are collectively referred to as internal devices.

The application provides a communication distribution box which comprises a door body, wherein the door body is connected with a box body 1 and is used for opening or closing a mounting cavity 11.

As shown in fig. 2, the box 1 is further formed with a mounting hole, and the mounting hole communicates the mounting cavity 11 with the outside of the box 1.

The communication distribution box provided by the application further comprises a heat dissipation device 2, and the heat dissipation device 2 is arranged in the mounting hole. The heat sink 2 is used to cool the mounting cavity 11.

The heat sink 2 is configured such that the heat dissipation efficiency of the heat sink 2 is greater than or equal to the efficiency of the internal device to generate heat. It is thereby ensured that the heat sink 2 reduces or continues to maintain the temperature in the installation space 11.

The heat sink 2 includes a heat absorbing portion 21 for absorbing heat of the mounting chamber 11.

The heat dissipating device 2 further includes a heat dissipating portion 22, where the heat dissipating portion 22 is located at a side of the heat absorbing portion 21 away from the mounting cavity 11, and is connected to the heat absorbing portion 21 for transferring heat of the heat absorbing portion 21 to the outside of the case 1.

When the communication distribution box works normally, the internal equipment of the communication distribution box operates to generate heat, the heat absorbing part 21 absorbs the heat and transfers the heat to the heat radiating part 22, and the heat radiating part 22 transfers the heat to the outside of the communication distribution box, so that the temperature inside the communication distribution box can be reduced.

The heat absorbing part 21 is located in the installation cavity 11, and the heat absorbing part 21 is in the installation cavity 11 to facilitate heat exchange with air in the installation cavity 11 and absorb heat in the installation cavity 11. The heat dissipation part 22 is located outside the box body 1, and the heat dissipation part 22 is located outside the box body 1 and is beneficial to heat exchange with outside air to dissipate heat.

Referring to fig. 1 and 2, the heat dissipating part 22 may be a heat dissipating fin, for example. The radiating fins can effectively increase the surface area of the radiator, better radiate heat and improve radiating efficiency, thereby better radiating heat.

As shown in fig. 3, the heat absorbing portion 21 includes a heat absorbing pipe 211, and both ends of the heat absorbing pipe 211 communicating with the installation cavity 11 (see fig. 2) are an air inlet 212 and an air outlet 213, respectively.

High-temperature air in the communication distribution box enters the heat absorption pipeline 211 from the air inlet 212, and when the high-temperature air passes through the heat absorption pipeline 211, the heat absorption part 21 exchanges heat, the heat in the air is reduced, the temperature of the air is reduced, and the air with reduced temperature enters the installation cavity 11 from the air outlet 213.

Therefore, when the air in the installation cavity 11 carries heat to pass through the heat absorption pipeline 211, the heat is transferred to the heat absorption part 21, the temperature of the air in the heat absorption pipeline 211 is reduced, and the cooled air is converged into the air in the installation cavity 11 again, so that the temperature in the installation cavity 11 is reduced. The temperature in the installation cavity 11 is reduced, so that the fire disaster caused by high temperature can be avoided, and the hidden danger of the fire disaster is reduced.

The temperature in the installation cavity 11 is reduced or stable, so that the influence of high temperature on fire judgment in normal use is avoided.

With continued reference to fig. 3, the heat absorbing pipe 211 is illustratively S-shaped. The S-shaped heat absorbing pipe 211 can increase the contact time of the air with the heat absorbing part 21, thereby being beneficial to the air in the heat absorbing pipe 211, the heat is fully absorbed by the heat absorbing part 21, and the air temperature is reduced.

Referring to fig. 2 and 3, the heat dissipating device 2 provided by the present application further includes a fan 24, where the fan 24 is connected to the air inlet 212 or the air outlet 213, and is used for introducing air in the installation cavity 11 into the heat absorption pipe 211 through the air inlet 212 and discharging the air through the air outlet 213.

The fan 24 provides power for the air passing through the heat absorbing part 21, so that high-temperature air continuously enters the heat absorbing pipeline 211 from the air inlet 212, and cooled air continuously enters the mounting cavity 11 from the air outlet 213.

When the cooled air passes through the equipment in the installation cavity 11, heat exchange is carried out between the cooled air and the equipment in the installation cavity 11, the temperature of the air carrying heat is increased, the cooled air enters the heat absorption pipeline 211 from the air inlet 212, and the cooled air is reciprocated to form heat exchange circulation, and the heat generated by the air carrying internal equipment is transferred to the heat absorption part 21, so that the temperature in the installation cavity 11 is reduced.

The temperature of the air in the installation cavity 11 is reduced after passing through the heat absorbing part 21, so that the installation cavity 11 is cooled, the heat absorbed by the heat absorbing part 21 is transferred to the heat radiating part 22, and the heat radiating part 22 transfers the heat to the outside air. During this process, the air in the installation cavity 11 forms a closed circulation, without contact with the outside air.

The air in the installation cavity 11 is not contacted with the outside, so that dust outside cannot be carried into the installation cavity 11, leaves, paper and other garbage in the outside of the box body 1 cannot be carried into the box body 1 due to heat dissipation, the cleanness of the installation cavity 11 can be kept in the heat dissipation process, the external sundries are prevented from entering the installation cavity 11 through the heat dissipation device 2, the sundries are prevented from being formed into combustion-supporting matters in the installation cavity 11, and fire hidden danger caused by the sundries can be eliminated.

With continued reference to fig. 2, the heat dissipating device 2 provided by the present application further includes a heat conducting portion 23, where one side of the heat conducting portion 23 is connected to the heat absorbing portion 21, and the other side is connected to the heat dissipating portion 22, so as to transfer heat of the heat absorbing portion 21 to the heat dissipating portion 22.

Through the heat conduction part 23, the heat conduction from the heat absorption part 21 to the heat dissipation part 22 can be accelerated, the heat dissipation effect is improved, the heat absorption part 21 is prevented from reaching thermal saturation, and the heat absorption part 21 can continuously absorb the heat from the air, so that the heat dissipation effect and the cooling effect in the installation cavity 11 are improved.

The heat conducting part 23 may be a cooling sheet, for example. The refrigerating sheet may generate a low temperature (lower than the outside air temperature) and the low temperature is neutralized with the high temperature of the heat absorbing portion 21, so that the heat absorbed by the heat absorbing portion 21 may be neutralized more quickly, and the heat absorbing portion 21 may be in a sustainable heat absorbing state.

Illustratively, the cooling fin is a semiconductor cooling fin. The semiconductor refrigerating sheet is a device which utilizes the thermoelectric effect of materials under the action of an electric field to generate a cooling effect, and when voltage is applied to two sides of the refrigerating sheet, the thermoelectric effect can generate a temperature difference in the electric pair, so that one side of the refrigerating sheet is cooled, and the other side of the refrigerating sheet is heated.

The semiconductor cooling fin is connected to the heat absorbing portion 21 on the side where the semiconductor cooling fin becomes cold, and is connected to the heat radiating portion 22 on the side where the semiconductor cooling fin becomes hot. The cooled side is heat-exchanged with the heat absorbing portion 21 to reduce the temperature of the heat absorbing portion 21, and the heat absorbing portion 21 having a reduced temperature reduces the temperature of the high-temperature air passing through the heat absorbing portion 21. One side of the semiconductor refrigerating sheet, which is heated, is connected with a heat radiating part 22, and the heat radiating part 22 transmits heat generated by the semiconductor refrigerating sheet to the outside of the box body 1.

As shown in fig. 4, the communication distribution box provided by the application further comprises a fire extinguishing device 3, wherein the fire extinguishing device 3 comprises a fire extinguishing air source 31, and the fire extinguishing air source 31 is connected with the box body 1 and is used for storing fire extinguishing air.

Illustratively, the fire suppressing gas source 31 may be a gas tank detachably connected to the housing 1 for facilitating replacement and maintenance of the gas tank.

The fire suppressing gas may be, for example, carbon dioxide gas or perfluoro-hexanone gas or one of the other inert gases that may be used to suppress the fire in electrical equipment.

With continued reference to fig. 4, the fire suppression apparatus 3 provided by the present application further includes a gas delivery system 32, the gas delivery system 32 being in communication with the gas outlet 312 of the fire suppression gas source 31 and with the installation cavity 11 (the installation cavity being inside the housing 1).

One end of the gas transmission system 32 is connected with the fire extinguishing gas source 31, and the other end is communicated with the installation cavity 11. The fire suppressing gas in the fire suppressing gas source 31 is directed into the mounting chamber 11 via the gas delivery system 32.

When a fire occurs in the box body 1, the fire extinguishing gas source 31 releases fire extinguishing gas, the fire extinguishing gas enters the gas transmission system 32, the gas transmission system 32 fills the fire extinguishing gas into the installation cavity 11, the fire extinguishing gas can be rapidly expanded into snowflake-shaped gas mist to be covered on the flame, and the oxygen concentration around the flame is reduced, so that the flame is extinguished. The fire extinguishing gas can absorb part of heat, reduce the temperature of flame and control the spread of fire.

With continued reference to fig. 4, the fire extinguishing apparatus 3 provided by the present application further includes a solenoid valve 33, where the solenoid valve 33 is disposed between the gas transmission system 32 and the fire extinguishing gas source 31, and connects the gas transmission system 32 and the fire extinguishing gas source 31.

The electromagnetic valve 33 has an open state and a closed state, when the electromagnetic valve 33 is in the open state, the fire extinguishing gas source 31 charges the gas transmission system 32 with the fire extinguishing gas, and when the electromagnetic valve 33 is in the closed state, the fire extinguishing gas source 31 stops charging the gas transmission system 32 with the fire extinguishing gas. The fire extinguishing gas source 31 can be controlled to fill the gas transmission system 32 with fire extinguishing gas by the electromagnetic valve 33.

With continued reference to fig. 2, the box 1 in the communication distribution box provided by the application further comprises a ventilation opening 12, wherein the ventilation opening 12 is used for ventilating the box 1 and exchanging air inside and outside the box 1. When the distribution box normally operates, the ventilation opening 12 can effectively increase the ventilation in the box body 1, reduce the internal temperature of the box body 1 and prevent the internal equipment from being overheated.

Under the condition that the box 1 is in a sealed state, fire extinguishing gas is filled into the box 1, so that the air pressure in the box 1 is increased, and when an maintainer opens the door of the box 1, the door can be sprung open due to the air pressure difference between the inside and the outside of the box 1, so that the maintainer is possibly injured. By providing the ventilation opening 12, the sealing environment of the case 1 can be released, so that the condition of accidentally injuring the service personnel can not occur.

With continued reference to fig. 2, the box body 1 in the communication distribution box provided by the application further comprises a baffle 13, wherein the baffle 13 comprises an open state and a closed state, the vent 12 is opened under the condition of the open state of the baffle 13 to communicate the installation cavity 11 with the outside, and the vent 12 is closed under the condition of the closed state of the baffle 13 to block the installation cavity 11 from the outside of the box body 1.

Referring to fig. 2 and 4, the barrier 13 is in an open state with the gas delivery system 32 filling the installation cavity 11 with the fire extinguishing gas, and the barrier 13 is in a closed state with the gas delivery system 32 not filling the installation cavity 11 with the fire extinguishing gas, as an example.

Under the condition that the gas transmission system 32 fills the installation cavity 11 in the installation cavity 11 with the fire extinguishing gas, the baffle 13 is in an open state, and at the moment, the ventilation opening 12 is opened, and the installation cavity 11 is communicated with the outside.

When the fire occurs in the installation cavity 11, the gas transmission system 32 continuously fills fire extinguishing gas into the installation cavity 11, the gas pressure of the installation cavity 11 is increased, and the fire extinguishing gas extrudes the air in the original installation cavity 11 out of the installation cavity 11 from the ventilation opening 12, so that the installation cavity 11 is filled with the fire extinguishing gas, the oxygen concentration around the flame is reduced, the temperature of the flame is reduced, and the fire extinguishing speed is improved.

Under the condition that the gas transmission system 32 does not charge the fire extinguishing gas into the installation cavity 11, the baffle 13 is in a closed state, the ventilation opening 12 is closed, and the installation cavity 11 is blocked from being communicated with the outside. When the communication distribution box normally operates, heat generated by normal operation of the installation cavity 11 is discharged to the outside through the heat radiating device 2, the fire extinguishing device 3 is not started, the ventilation opening 12 is closed, external dust or other objects can be prevented from entering the installation cavity 11 through the ventilation opening 12, and therefore the installation cavity 11 is kept clean, and a clean environment is favorable for reducing fire hazards.

With continued reference to fig. 2 and 4, the exemplary gas delivery system 32 is shown with the barrier 13 in a closed position with the installation cavity 11 being filled with a fire suppressing gas, and with the gas delivery system 32 not being filled with a fire suppressing gas, the barrier 13 is shown in an open position.

Under the condition that the gas transmission system 32 fills the fire extinguishing gas into the installation cavity 11, the baffle 13 is in a closed state, the ventilation opening 12 is closed, and the installation cavity 11 is blocked from being communicated with the outside.

The vent 12 is closed, the installation cavity 11 forms a closed space, when the installation cavity 11 fires, the oxygen amount in the installation cavity 11 is fixed, and after the oxygen is burnt, the closed space forms an anaerobic environment, one of flame combustion conditions is eliminated, and the fire can be effectively extinguished. Meanwhile, the gas transmission system 32 continuously inputs fire extinguishing gas into the installation cavity 11, the fire extinguishing gas can also fully isolate the contact between the ignition point and the air, the oxygen concentration around the flame is reduced, the temperature of the flame is reduced, and the fire extinguishing speed is improved.

Under the condition that the gas transmission system 32 does not charge the fire extinguishing gas into the installation cavity 11, the baffle 13 is in an open state, the ventilation opening 12 is opened at the moment, and the installation cavity 11 is communicated with the outside. When the communication distribution box normally operates, heat generated by normal operation of the installation cavity 11 is discharged to the outside through the heat radiating device 2, the ventilation opening 12 is communicated with the outside, outside air can enter the installation cavity 11 through the ventilation opening 12, air exchange inside and outside the box body 1 is increased, air circulation of the installation cavity 11 is effectively increased, the temperature inside the box body 1 is reduced, and equipment overheating is prevented.

With continued reference to fig. 2, the box 1 in the communication distribution box provided by the application further includes a dust screen 14, the dust screen 14 is disposed at the air vent 12, and the dust screen 14 is connected with the box 1.

When the ventilation opening 12 is used for ventilation, dust and other impurities exist in the air outside the box body 1, the dust and other impurities can enter the box body 1 and are accumulated in the box body 1, the cleaning difficulty of the communication distribution box is increased, the entered dust and other impurities can rub against each other to generate static electricity, the static electricity is one of fire hazards, and therefore the hidden hazards of fire occurrence can be reduced.

The dust that gets into installation cavity 11 through dust screen 14 when the air of box 1 external world gets into installation cavity 11 can reduce, avoids bulky impurity to get into installation cavity 11 simultaneously, helps keeping the cleanness of equipment to reduce the risk of interior equipment trouble.

As shown in fig. 5 and 6, the gas delivery system 32 provided by the present application further includes a gas bladder 321, where the gas bladder 321 is in communication with the gas outlet 312 (see fig. 4) of the fire extinguishing gas source 31 (see fig. 4), and the gas bladder 321 is further connected to the baffle 13.

When the fire extinguishing gas source 31 charges the installation cavity 11 with the fire extinguishing gas, the airbag 321 charges and drives the shutter 13 to switch from the open state to the closed state, when the fire extinguishing gas continues to charge, the shutter 13 is in the closed state, and when the gas transmission system 32 does not charge the installation cavity 11 with the fire extinguishing gas, the shutter 13 is in the open state or switches from the closed state to the open state.

Illustratively, the present application provides for the gas delivery system 32 to further include a gas delivery conduit in communication with the outlet 3212 of the bladder 321, the gas delivery conduit in communication with the mounting chamber 11, the gas delivery conduit being configured to communicate with the bladder 321 and the mounting chamber 11.

When fire occurs in the installation cavity 11, the fire extinguishing gas in the fire extinguishing gas source 31 enters the air bag 321, the air bag 321 is inflated, the volume is gradually expanded, the baffle 13 is driven to move from an open state to a closed state in the volume expansion process of the air bag 321 until the volume expansion of the air bag 321 is maximum, the baffle 13 moves to the closed state, the fire extinguishing gas fills the air bag 321, then enters the gas pipe from the air bag 321, the gas pipe is connected to the installation cavity 11, and the gas pipe fills the installation cavity 11 with the fire extinguishing gas.

Illustratively, the air delivery tube is connected at one end to the fire suppressing air supply 31 and at the other end to the mounting chamber 11. Fire suppressing gas enters the gas delivery pipe from the fire suppressing gas source 31 and then enters the mounting chamber 11 from the gas delivery pipe. In this example, the vent 12, the baffle 13, and the air bag 321 may not be provided.

With continued reference to fig. 5, the air delivery system 32 provided by the present application further includes a resetting device 323, where the resetting device 323 is disposed at the vent 12 and is connected to the case 1 (see fig. 2), a placement cavity 3231 is formed inside the resetting device 323, the placement cavity 3231 is located in a direction perpendicular to an axis of the vent 12, an extending direction of the placement cavity 3231 is perpendicular to the axis of the vent 12, the air bag 321 is disposed in the placement cavity 3231, and the air bag 321 can expand along the extending direction of the placement cavity 3231, and the baffle 13 can move between the placement cavity 3231 and the vent 12.

The placement cavity 3231 provides a storage space for the balloon 321, protecting the balloon 321 from being lacerated and rendered useless. The air bag 321 is disposed in the placement chamber 3231, i.e., in a direction perpendicular to the axis of the vent 12, and when the air bag 321 is inflated, the air bag 321 is inflated in the extending direction of the placement chamber 3231, and the shutter 13 is movable between the placement chamber 3231 and the vent 12.

With continued reference to fig. 6, the bladder 321 includes an inlet 3211, an outlet 3212, and an inflation channel 3213, the inlet 3211 and the outlet 3212 being located at opposite ends of the bladder 321, respectively, the inlet 3211 and the outlet 3212 being in communication with the inflation channel 3213, and fire suppression gas entering the inflation channel 3213 through the inlet 3211 and then entering the gas delivery conduit or mounting cavity 11 through the outlet 3212.

Referring to fig. 5 and 6, the inlet 3211 of the air bag 321 is disposed farther from the vent 12 than the outlet 3212, and the outlet 3212 of the air bag 321 is disposed closer to the vent 12 than the inlet 3211. When the fire extinguishing gas is charged into the gas-charging channel 3213 in the airbag 321, the fire extinguishing gas is charged in a direction from the inlet 3211 to the outlet 3212, and the volume of the gas-charging channel 3213 near the inlet 3211 is preferentially increased, and as the amount of the fire extinguishing gas charged into the gas-charging channel 3213 is increased, the volume of the gas-charging channel 3213 is correspondingly increased until the gas-charging channel 3213 is completely filled.

With continued reference to fig. 6, the inflation channel 3213 is illustratively S-shaped. The S-shaped gas-filling channel 3213 makes the fire-extinguishing gas uniformly filled when the fire-extinguishing gas is filled into the gas-filling channel 3213, so that the volume of the gas bag 321 is gradually increased from the inlet 3211 to the outlet 3212, the gas bag 321 is expanded from the inlet 3211 to the outlet 3212, and the direction is the direction in which the baffle 13 moves from the open state to the closed state.

Referring to fig. 5 and 6, a baffle 13 is provided in the outlet 3212 and the inlet 3211, near one side of the outlet 3212, and as the amount of fire extinguishing gas charged in the gas charging passage 3213 changes, the volume of the air bag 321 changes accordingly, and the baffle 13 also moves between the placement chamber 3231 and the vent 12. The extending direction of the placement chamber 3231, the expanding direction of the air bag 321, and the moving direction of the shutter 13 are all identical, i.e., in a direction perpendicular to the axis of the vent 12.

When the balloon 321 is not inflated and the volume is contracted, the shutter 13 is in the placement chamber 3231, i.e., the opened state.

When the communication distribution box normally operates, the baffle 13 is in an open state, the baffle 13 opens the ventilation opening 12 to communicate the installation cavity 11 with the outside, the heat dissipating device 2 (see fig. 2) normally operates, a part of air entering from the air inlet 212 (see fig. 3) of the heat dissipating device 2 is air of the installation cavity 11, and the other part of air is outside air entering through the ventilation opening 12.

When the air bag 321 is inflated to expand the air bag 321, that is, when the interior of the installation cavity 11 is on fire, the baffle 13 positioned in the placement cavity 3231 moves along the direction from the placement cavity 3231 to the ventilation opening 12 under the action of the inflation volume of the air bag 321, that is, the baffle 13 moves from the open state to the closed state, and when the air bag 321 is inflated to the maximum, the baffle 13 is in the closed state.

When a fire occurs in the communication distribution box, the fire extinguishing gas source 31 (see fig. 4) releases fire extinguishing gas from the gas outlet 312 (see fig. 4), the fire extinguishing gas enters the air bag 321 from the inlet 3211, the air bag 321 expands in volume, and the air bag expands in a direction from the placement cavity 3231 to the ventilation opening 12. The shutter 13 in the placement chamber 3231 slides in the direction from the placement chamber 3231 to the vent 12 by the inflation of the air bladder 321, that is, the shutter 13 moves from the open state to the closed state.

When the airbag 321 is inflated to the maximum, the shutter 13 is closed, and the fire extinguishing gas enters the installation cavity 11 from the outlet 3212, and the fire extinguishing gas is released into the installation cavity 11, thereby extinguishing a fire. When the air bag 321 is expanded to the maximum, the baffle 13 closes the ventilation opening 12 under the action of the air bag 321 to cut off the gas exchange between the installation cavity 11 and the outside, and the total amount of oxygen in the installation cavity 11 is fixed, so that when the oxygen is burnt, the contact between the combustion point in the installation cavity 11 and the oxygen is isolated, and the fire extinguishing speed is increased.

When the fire is extinguished in the installation cavity 11, the fire extinguishing gas source 31 does not release fire extinguishing gas any more, the fire extinguishing gas is filled in the installation cavity 11, the baffle 13 is in a closed state, the installation cavity 11 is a sealed space, the fire extinguishing gas continuously filled into the installation cavity 11 causes the air pressure in the installation cavity 11 to rise during fire extinguishing, after the fire is extinguished, an maintainer opens the box body 1 at the moment, and the pressure difference between the inside and the outside of the box body 1 exists to cause the box body 1 to be sprung out, so that the risk of accidentally injuring the maintainer exists.

As shown in fig. 5, the restoring device 323 provided by the present application further includes an elastic member 3232, where the elastic member 3232 is connected to the shutter 13, the elastic member 3232 is connected to the placement cavity 3231, and when the air bag 321 inflates and drives the shutter 13 to switch from the open state to the closed state, the elastic member 3232 elastically deforms, and simultaneously generates a restoring force for driving the shutter 13 to move from the closed state to the open state.

When the elastic member 3232 is elastically deformed, the elastic member 3232 is forced from the free state to the compressed state or from the compressed state to the compressed state having a larger deformation amount, and the elastic member 3232 generates a restoring force capable of moving the shutter 13 from the closed state to the open state.

When the fire extinguishing gas source 31 (see fig. 4) no longer releases fire extinguishing gas, the continuously filled fire extinguishing gas is no longer present in the air bag 321, the force forcing the deformation of the elastic member 3232 to disappear, the elastic potential energy generated by the deformation of the elastic member 3232 is changed into kinetic energy, and the elastic member 3232 is restored from the compressed state to the free state under the action of the kinetic energy, or is changed from the compressed state with larger deformation amount into the compressed state with smaller deformation amount.

The elastic member 3232 drives the shutter 13 to switch from the closed state to the open state, and when the shutter 13 moves to the fully open state, the elastic member 3232 is deformed by a minimum amount.

In the process of switching the baffle 13 from the closed state to the open state, the air bag 321 is extruded by the baffle 13, the fire extinguishing gas in the air bag 321 is discharged, the volume of the air bag 321 is reduced, and a space is provided for the movement of the baffle 13.

When the baffle 13 opens the vent 12 a little, the gas (air and fire extinguishing gas mixed together) in the installation cavity 11 is discharged to the outside of the case 1 under the action of the air pressure difference, and the air pressure difference is reduced until the air pressure in the installation cavity 11 is consistent with the atmospheric pressure. The problem of the inconsistent pressure difference between inside and outside the box 1 after putting out a fire is solved, the atmospheric pressure is unanimous outside the installation cavity 11 at this moment, and the condition of accidentally injuring the maintainer because of the atmospheric pressure difference can not appear when opening the box 1 by the maintainer.

By way of example, the resilient member 3232 may be a spring, a resilient tab, or other article having a resiliency that may create a restoring force for driving the shutter 13 from the closed state to the open state.

With continued reference to fig. 5, the exemplary restoring apparatus 323 further includes a telescopic rod 3233, the elastic member 3232 is a spring, one end of the telescopic rod 3233 is connected to the installation cavity 11, the other end is connected to the baffle 13, the spring is annularly disposed on the outer side of the telescopic rod 3233, and the telescopic rod 3233 plays a guiding role for the deformation of the spring, so that the deformation direction of the spring is along the extending direction of the telescopic rod 3233.

When the shutter 13 is switched from the open state to the closed state, the spring generates a restoring force for driving the shutter 13 to move from the closed state to the open state.

Illustratively, the spring is in a compressed state when the flapper 13 is in an open state. When the airbag 321 is inflated and the shutter 13 moves from the open state to the closed state, the spring is forced to be further compressed from the compressed state to the compressed state with larger deformation amount, and the elastic deformation is generated, so that the elastic potential energy is provided.

When the inflation in the air bag 321 is stopped, the elastic potential energy of the spring deformation is changed into kinetic energy, the baffle 13 is driven to move from the closed state to the open state, the spring is changed from the deep compression state to the compression state, the spring deformation amount is reduced, and the elastic potential energy is reduced until the baffle 13 is restored to the open state.

Illustratively, the spring is in a free state when the flap 13 is in an open state. When the airbag 321 is inflated and the shutter 13 moves from the open state to the closed state, the spring is changed from the free state to the compressed state by an external force, and is elastically deformed to have elastic potential energy.

When the inflation in the air bag 321 is stopped, the elastic potential energy becomes kinetic energy, the baffle 13 is driven to move from the closed state to the open state, the spring is changed from the compressed state to the free state, the deformation amount of the spring becomes smaller until no deformation amount exists, and the elastic potential energy correspondingly becomes smaller until the baffle 13 is restored to the open state.

As shown in fig. 7, the communication distribution box provided by the present application further includes a driving device 4, where the driving device 4 includes an exhaust member 42, and the exhaust member 42 is connected to the heat absorbing portion 21 (see fig. 2) for exhausting air after heat exchange with the heat absorbing portion 21 into the installation cavity 11 through the exhaust member 42, and the exhaust member 42 is further connected to the gas transmission system 32 for exhausting fire extinguishing gas to the installation cavity 11.

The temperature of the air in the installation cavity 11 is reduced after the air is processed by the heat absorbing part 21, and the cooled air can be discharged into the installation cavity 11 through the exhaust part 42 under the action of the fan 24.

The cooled air is directly discharged to the equipment in the installation cavity 11 through the exhaust piece 42, the fan 24 enables the air to flow rapidly, and when the air passes through the equipment in the installation cavity 11, the air exchanges heat with the equipment, carries heat generated by the operation of the equipment, the temperature of the air rises, and the temperature of the internal equipment drops. The heated air exchanges heat with the heat absorbing part 21, and transfers heat to the heat absorbing part 21, so that the air is cooled to a state in which the heat generated by the operation of the equipment can be absorbed again.

The exhaust member 42 directly exhausts the cooled air to the internal equipment, and absorbs heat generated by the operation of the internal equipment, thereby accelerating the cooling.

The exhaust member 42 is connected to the gas delivery system 32, and when a fire occurs in the installation cavity 11, the gas delivery system 32 delivers fire suppressing gas to the exhaust member 42, and the exhaust member 42 exhausts the fire suppressing gas into the installation cavity 11.

The vent 42 vents the fire suppressing gas to the internal equipment, and in the event of a fire, the fire suppressing gas fills the surrounding of the internal equipment, isolating oxygen from the risk of damage to the internal equipment.

Illustratively, a plurality of air jets are disposed at a side of the air discharge member 42 facing the mounting apparatus in the mounting cavity 11, the air jets being disposed at intervals, and the air jets being in communication with the air discharge member 42 for uniformly discharging the air in the air discharge member 42 into the mounting cavity 11.

Illustratively, the open area of the end of the air jet remote from the air discharge member 42 is smaller than the open area of the end of the air jet connected to the air discharge member 42, and when air passes through the air jet, more air is connected to the end of the air discharge member 42 through the air jet in unit time, and less air is connected to the end of the air discharge member 42 through the air jet in unit time.

The amount of air entering the exhaust member 42 is constant such that the air flow rate at the end of the air jet remote from the exhaust member 42 is greater than the air flow rate at the end of the air jet proximate to the exhaust member 42, the air flow rate at the end of the air jet proximate to the exhaust member 42 being related to the power of the blower 24 or the air pressure within the fire suppression air source 31. Whereby the air jet can accelerate the air flow rate therethrough without the power of the blower 24 or the air pressure in the fire suppressing air supply 31 being changed.

During normal operation, i.e. without fire, air is discharged from the air nozzle into the installation cavity 11 through the air discharge member 42, and the air can be uniformly discharged to the internal equipment through the air nozzle to cool the equipment in the installation cavity 11.

When a fire occurs, the air pressure in the fire extinguishing air source 31 is larger than the air pressure in the installation cavity 11, so that the fire extinguishing air is forced to be discharged into the installation cavity 11 under the action of air pressure difference. The air nozzle enlarges the discharge area of the fire extinguishing gas discharged into the installation cavity 11, so that the discharge amount of the fire extinguishing gas in unit time is increased, the inflation time of the fire extinguishing gas filled into the installation cavity 11 is shorter, and the fire extinguishing time is faster.

As shown in fig. 8, the driving device 4 provided by the application further comprises a driving member 41, wherein the driving member 41 is in transmission connection with the exhaust member 42, and the driving member 41 is connected with the box body 1. The driving piece 41 is installed on the box body 1, the driving piece 41 drives the exhaust piece 42 to move in the installation cavity 11, the exhaust piece 42 can spray out gas in the moving process, the driving piece 41 enables internal equipment to be cooled down evenly or fire extinguishing gas to be filled into the installation cavity evenly, and the fire extinguishing gas is filled in the installation cavity 11.

When a fire is initiated in the installation cavity 11, the location of the fire point is unknown, and the discharged fire extinguishing gas is uniformly dispersed throughout the installation cavity 11 by moving the exhaust member 42, so that the fire extinguishing gas rapidly reaches the fire point, thereby rapidly extinguishing the fire. When the distribution box normally operates, the driving piece 41 drives the exhaust piece 42 to move, so that the exhaust piece 42 can uniformly spread air to the whole installation cavity 11, the air flow is more uniform, and dead angles and local ventilation unsmooth ground conditions are reduced.

The driving member 41 may be, for example, a cylinder, the cylinder being connected to the housing 1, and an output shaft of the cylinder being connected to the exhaust member 42 for driving the exhaust member 42 to reciprocate between relatively far ends in the installation cavity 11.

Illustratively, the driving member 41 may be a motor, which is coupled to the housing 1, and an output shaft of which is coupled to the air discharging member 42 for driving the air discharging member 42 to reciprocate between the relatively far ends of the mounting cavity 11.

With continued reference to fig. 8, the driving device provided by the application further includes a transmission rod 43 and a guide rod 44, the driving member 41 may be a motor, the motor is connected with the case 1, the motor is in transmission connection with the transmission rod 43, the transmission rod 43 is in transmission connection with the air exhausting member 42, the guide rod 44 is connected with the case 1, the air exhausting member 42 is in sliding connection with the guide rod 44, and the extending direction of the guide rod 44 is perpendicular to the extending direction of the air exhausting member 42.

The air discharging member 42 slides along the extending direction of the guide rod 44, the guide rod 44 extends to the two end faces of the box body 1 which are far away, and the motor and the transmission rod 43 supply power for the movement of the air discharging member 42 along the extending direction of the guide rod 44, so that the air discharging member 42 reciprocates at the two ends of the box body 1 which are far away.

The venting member 42 is movable between the spaced apart ends within the mounting cavity 11 as the gases are vented. The air exhausting member 42 exhausts air while moving, so that the air is uniformly dispersed throughout the mounting chamber 11, and the air circulation is more uniform. The fire extinguishing gas is discharged in the moving process, so that the fire extinguishing gas can uniformly spread in the whole installation cavity 11, the fire starting point can be covered by the fire extinguishing gas more quickly, and the fire extinguishing speed is accelerated.

As shown in fig. 7, the driving device provided by the present application further includes a connection pipe 45, where the connection pipe 45 connects the air-spraying and exhausting member 42 and the blower 24, the blower 24 connects the heat absorbing portion 21 (see fig. 2), and another connection pipe 45 connects the air-spraying and exhausting member 42 and the air-conveying system 32.

The connecting pipe 45 is a telescopic hose, so that the exhaust piece 42 is connected with the fan 24 and the air transmission system 32 in the process of moving in the installation cavity, and the connecting pipe 45 enables the exhaust piece 42 to flexibly move and simultaneously can be communicated with the fan 24 and the air transmission system 32.

As shown in fig. 8, the communication distribution box provided by the application further comprises a detector 5 and a controller 6, wherein the detector 5 is arranged in the installation cavity 11 and is connected with the controller 6, the controller 6 is arranged outside the box body 1, and the controller 6 is electrically connected with the fan 24 (see fig. 7), the driving piece 41 and the electromagnetic valve 33 of the fire extinguishing device 3 (see fig. 4) respectively.

The detector 5 is used for detecting the temperature and smoke concentration in the installation cavity 11, generating corresponding electric signals and transmitting the corresponding electric signals to the controller 6, and the controller 6 respectively controls the fan 24, the driving piece 41 and the fire extinguishing device 3 to be started or closed according to the corresponding electric signals.

The detector 5 is disposed in the mounting chamber 11 to facilitate detection of temperature and smoke concentration within the mounting chamber 11.

The controller 6 is arranged outside the box body 1, and when a fire occurs in the box body 1, the controller 6 can still control the fan 24, the driving piece 41 and the fire extinguishing device 3 without being influenced.

The detector 5 provided by the application comprises a temperature detector 51 and a smoke detector 52, wherein the temperature detector 51 and the smoke detector 52 are arranged in the installation cavity 11, the temperature detector 51 is electrically connected with the controller 6, the temperature detector 51 is used for detecting the temperature in the installation cavity 11, the smoke detector 52 is electrically connected with the controller 6, and the smoke detector 52 is used for detecting the smoke concentration in the installation cavity 11.

The temperature detector 51 detects a temperature change, generates an electrical signal according to the detected temperature change, and transmits the electrical signal to the controller 6. The smoke detector 52 detects the smoke concentration variation, generates an electrical signal according to the smoke concentration variation, and transmits the electrical signal to the controller 6.

When the temperature detector 51 detects that the temperature in the installation cavity 11 rises and is lower than a preset temperature threshold, a first electric signal is generated and transmitted to the controller 6, and the preset temperature threshold may be the highest value that causes the temperature in the installation cavity 11 to rise when the internal device is operating normally.

The preset temperature threshold may also be a range, and when the temperature detector 51 detects that the temperature in the installation cavity 11 is rising and within the preset temperature range, a first electric signal is generated and transmitted to the controller 6.

After the controller 6 receives the first electric signal, the fan 24 in the heat radiator 2 is controlled to operate to cool the inside of the installation cavity 11, meanwhile, the controller 6 controls the driving device 4 to operate, and the driving device 4 controls the exhaust piece 42 to exhaust uniformly in the installation cavity 11.

When the temperature detector 51 detects a temperature rise in the installation chamber 11 and is higher than a preset temperature threshold or higher than a preset temperature range, it is determined that a fire is likely, and a second electric signal is transmitted to the controller 6.

At this time, it is determined that there is a possibility of ignition, and the higher the temperature is, the higher the possibility of ignition is determined.

After the controller 6 receives the second electric signal, the controller 6 controls the electromagnetic valve 33 in the fire extinguishing device 3 to be opened, fire extinguishing gas is filled into the installation cavity 11, meanwhile, the controller 6 controls the driving device 4 to operate, and the driving device 4 controls the exhaust piece 42 to be uniformly filled in the installation cavity 11.

When the smoke detector 52 detects an increase in smoke concentration in the mounting chamber 11 above a preset smoke concentration threshold, it sends a third electrical signal to the controller 6.

The controller 6 receives the third electric signal, controls the electromagnetic valve 33 in the fire extinguishing device 3 to open, discharges fire extinguishing gas into the installation cavity 11, and simultaneously controls the driving device 4 to operate, and the driving device 4 controls the exhaust piece 42 to exhaust uniformly in the installation cavity 11.

When the temperature detector 51 detects that the temperature in the installation cavity 11 is higher than the preset temperature threshold or higher than the preset temperature range, and the smoke detector 52 detects that the smoke concentration in the installation cavity 11 is higher than the preset smoke concentration threshold, the second electric signal and the third electric signal are respectively sent to the controller 6, after the controller 6 receives the two electric signals, the controller 6 determines that fire occurs, controls the electromagnetic valve 33 in the fire extinguishing device 3 to open, discharges fire extinguishing gas into the installation cavity 11, and simultaneously controls the driving device 4 to operate, and the driving device 4 controls the exhaust piece 42 to exhaust uniformly in the installation cavity 11.

As shown in fig. 8, an exemplary communication distribution box provided by the present application further includes a power supply device 8, where the power supply device 8 is disposed outside the box body 1, and the power supply device 8 is electrically connected with the controller 6, the blower 24 (see fig. 7), the driving member 41, the solenoid valve 33 of the fire extinguishing apparatus 3 (see fig. 4), and the detector 5, respectively.

The power supply device 8 is used for supplying power to the controller 6, the blower 24, the driving member 41, the solenoid valve 33 of the fire extinguishing device 3 and the detector 5 when the communication distribution box is on fire and off. The power supply of the controller 6, the fan 24, the driving member 41, the solenoid valve 33 of the fire extinguishing device 3 and the detector 5 is provided by external power supply equipment in normal use of the communication distribution box.

The power supply device 8 may be, for example, a solar cell, which may be stored as electrical energy by collecting solar energy.

The power supply device 8 may be a battery, for example, which stores electrical energy by connection with an external power supply device, or by a service person changing the battery to ensure that the power supply device 8 always supplies the controller 6, the fan 24 (see fig. 7), the driving member 41, the solenoid valve 33 of the fire extinguishing device 3 (see fig. 4) and the detector 5.

As shown in fig. 9, the communication distribution box provided by the application further comprises a sealing device 7. The box body 1 is provided with a wire outlet hole 15, the wire outlet hole 15 reserves space for a circuit required by connecting equipment in the installation cavity 11 with external equipment, and the sealing device 7 is arranged at the wire outlet hole 15 and is connected with the box body 1.

In the long-term outdoor use process of the distribution box, the installation cavity 11 is an ideal habitat for some animals, other inflammable objects such as hay and wood dust are ideal building materials for animal nest, and the animals bring the building materials into the distribution box through the wire outlet holes 15, so that the hidden danger of fire of the distribution box is formed.

As shown in fig. 9 and 10, the sealing device 7 includes a flexible sleeve 71, the flexible sleeve 71 is provided at the wire outlet hole 15, the flexible sleeve 71 is further connected to the case 1, and the flexible sleeve 71 is plastically deformable. The wires can pass through the flexible sleeve 71 to connect the inside and outside of the distribution box.

The one end that the flexible cover 71 connects box 1 is first end, and the one end that the flexible cover 71 kept away from and connects box 1 is the second end, and flexible cover 71 inside is provided with the line hole that can supply the circuit to pass, and the line hole runs through flexible cover 71 from first end to second end.

Illustratively, the flexible sleeve 71 may protrude into the housing 1, with the wire aperture at the second end configured to allow the wire to pass therethrough for close fitting with the wire.

Illustratively, the flexible sleeve 71 may also protrude outwardly of the housing 1, with the wire aperture at the second end configured to allow the wire to pass therethrough for close fitting with the wire.

The wire hole diameter of first end is greater than the circuit diameter, and the circuit of being convenient for wears to establish into box 1 through flexible cover 71 from box 1 outside, and the wire hole diameter of second end is slightly less than the circuit diameter, from this after wearing to establish the circuit, plastic deformation takes place for flexible cover 71 second end, closely laminates between flexible cover 71 second end and the circuit, when making the circuit pass, avoids other impurity entering.

Illustratively, the flexible sleeve 71 is switchable between protruding outside the case 1 and protruding inside the case 1, and the flexible sleeve 71 has plasticity, and the first end is connected to the case 1, and the wire hole of the first end has a larger diameter than the wire, and the wire hole of the second end is configured to allow the wire to be closely attached to the wire after passing therethrough.

By way of example, the flexible sleeve 71 may be made using one or more of rubber, silicone, plastic, and elastomeric cloth.

The flexible sleeve 71 allows the line to pass through the threading hole to connect the inside and the outside of the box body 1, and at the same time, prevents animals from entering the box body 1 to nest, and also prevents other impurities from entering the box body 1, thereby reducing fire hazards.

After the circuit passes through the flexible sleeve 71, the circuit is tightly attached to the flexible sleeve 71, and the inside and the outside of the separation box body 1 are communicated through the threading holes, so that dust and other impurities in the outside air cannot enter the box body 1 through the threading holes, the inside of the box body 1 is clean, and the clean environment is favorable for reducing fire hazards.

With continued reference to fig. 10, the sealing device provided by the present application further includes a pull cord 72, the pull cord 72 being disposed outside the flexible sleeve 71, the pull cord 72 being configured to tighten the flexible sleeve 71. When the line passes through the flexible sleeve 71 to connect the internal and external devices, the flexible sleeve 71 is tightened by using the pull rope 72, so that the positions of the flexible sleeve 71 and the line are relatively fixed.

So can further make the space intercommunication inside and outside the isolated box of flexible cover 71, make other impurity such as dust in the outside air unable entering box 1 through the through wires hole in, be favorable to the inside clean and tidy of box 1, and clean environment is favorable to reducing the conflagration hidden danger.

The pull cord 72 relatively secures the flexible sleeve 71 and the wiring passing through the flexible sleeve 71. During use, the sliding of the wire in the flexible sleeve 71 is reduced, thereby reducing friction between the flexible sleeve 71 and the wire and increasing the service life of the flexible sleeve.

The positions of the flexible sleeve 71 and the circuit are relatively fixed, and the flexible sleeve 71 is connected with the box body to provide support for the circuit, so that when the circuit is connected with the joint of the internal equipment, the circuit cannot swing at will in the box body 1 to cause electric leakage, and the electric leakage is also a fire hazard, so that the fire hazard can be reduced.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (14)

1. A communications distribution box, the communications distribution box comprising:

The box body is provided with an installation cavity and an installation hole communicated with the installation cavity;

The heat abstractor, heat abstractor set up in the mounting hole, heat abstractor includes:

the heat absorption part comprises a heat absorption pipeline, and an air inlet and an air outlet of the heat absorption pipeline are communicated with the mounting cavity;

The heat dissipation part is positioned at one side of the heat absorption part far away from the mounting cavity, is connected with the heat absorption part and is used for transmitting heat of the heat absorption part to the outside of the box body;

the fan is used for leading the air in the installation cavity into the heat absorption pipeline through the air inlet and discharging the air through the air outlet.

2. The communications distribution box of claim 1 wherein the heat sink further comprises a thermally conductive portion connecting the heat sink and the heat sink for transferring heat from the heat sink to the heat sink.

3. A telecommunications enclosure in accordance with claim 2, wherein said thermally conductive section is a cooling fin.

4. The communications distribution box of claim 1, further comprising a fire extinguishing device, the fire extinguishing device comprising:

the fire extinguishing gas source is connected with the box body and used for storing fire extinguishing gas;

and the gas transmission system is communicated with the gas outlet of the fire extinguishing gas source and the mounting cavity.

5. The communications distribution box of claim 4 wherein the box includes a vent and a baffle, the baffle including an open state in which the baffle opens the vent to the outside and a closed state in which the baffle closes the vent to the outside;

the baffle is in one of the open state and the closed state with the gas delivery system charging the installation cavity with fire suppressing gas;

The baffle is in the other of the open state and the closed state without the gas delivery system filling the installation cavity with fire suppressing gas.

6. The communications distribution box of claim 5 wherein the gas delivery system comprises:

The inlet of the air bag is communicated with the air outlet of the fire extinguishing air source;

the air pipe is communicated with the outlet of the air bag and is communicated with the mounting cavity;

under the condition that the gas transmission system fills fire extinguishing gas into the installation cavity, the air bag is inflated and drives the baffle plate to switch from the opening state to the closing state;

under the condition that the gas transmission system does not charge fire extinguishing gas into the installation cavity, the baffle is in the open state.

7. The communications distribution box of claim 6 wherein the gas delivery system further comprises a reset device disposed at the vent and connected to the box, the reset device having a placement cavity formed therein, the placement cavity being positioned in a direction perpendicular to the vent axis, the airbag being disposed in the placement cavity, the baffle being movable between the placement cavity and the vent;

The baffle is in the open state, the baffle is located in the placing cavity, and the baffle is in the closed state, and the baffle is located at the ventilation opening.

8. The communications distribution box of claim 7 wherein said return means further comprises an elastic member connected to said flap, said elastic member connected to said placement chamber, said elastic member elastically deforming in response to inflation of said bladder and actuation of said flap from said open condition to said closed condition, and being capable of generating a restoring force for actuating movement of said flap from said closed condition to said open condition.

9. The communications distribution box of claim 5 wherein the box further comprises a dust screen disposed at the vent, the dust screen being connected to the box.

10. The communications distribution box of claim 4 further comprising a drive device, the drive device comprising:

The exhaust piece is connected with the heat absorption part and is used for exhausting air passing through the heat absorption part to the mounting cavity; the exhaust piece is connected with the gas transmission system and is used for exhausting the fire extinguishing gas to the installation cavity;

The driving piece is connected with the box body and is in transmission connection with the exhaust piece.

11. The communications distribution box of claim 4 wherein said fire suppression apparatus further comprises a solenoid valve disposed between and connecting said gas delivery system to said fire suppression gas source;

The electromagnetic valve is in an opening state and a closing state, when the electromagnetic valve is in the opening state, the fire extinguishing gas source charges fire extinguishing gas into the gas transmission system, and when the electromagnetic valve is in the closing state, the fire extinguishing gas source stops charging fire extinguishing gas into the gas transmission system.

12. The communications distribution box of claim 10, further comprising: a detector and a controller;

The detector set up in the installation cavity, the detector with the controller is connected, the controller sets up in the box outside, the controller respectively with the fan the driving piece with extinguishing device's solenoid valve electricity is connected.

13. The communications distribution box of claim 12 wherein the detector further comprises: a temperature detector and a smoke detector;

The temperature detector is electrically connected with the controller and is used for detecting the temperature in the mounting cavity, the temperature detector is configured to send an electric signal to the controller when the temperature of the mounting cavity rises, and the controller is configured to control the driving device and the fan according to the electric signal provided by the temperature detector;

And/or the number of the groups of groups,

The smoke detector is electrically connected with the controller, the smoke detector is used for detecting the smoke concentration in the mounting cavity, the temperature detector is configured to send an electric signal to the controller when detecting the smoke concentration in the mounting cavity to rise, and the controller is configured to control the electromagnetic valve according to the electric signal provided by the smoke detector.

14. The communication distribution box according to claim 1, further comprising a sealing device, wherein the box body is provided with a wire outlet hole, the wire outlet hole is used for reserving space for a line, and the sealing device is arranged at the position of the wire outlet hole and is connected with the box body;

The sealing device comprises a flexible sleeve and a pull rope, wherein the flexible sleeve is arranged at the position of the wire outlet hole and is connected with the box body, the pull rope is arranged outside the flexible sleeve, and the pull rope is used for tightening the flexible sleeve.