CN215345685U - Positive pressure heat insulation constant temperature air circulation cabinet - Google Patents

Abstract

The utility model belongs to the technical field of communication cabinets, and discloses a positive-pressure heat-insulation constant-temperature air circulation cabinet which comprises a sealed cabinet body with heat insulation materials, wherein an air inlet system and an air exhaust system are arranged in the cabinet body, the cabinet body comprises a PID operation control module and an environment monitoring module with an air pressure detection function, and the PID operation control module receives data of the environment monitoring module and controls the air inlet system and the air exhaust system.

Description

Positive pressure heat insulation constant temperature air circulation cabinet

Technical Field

The utility model belongs to the technical field of communication cabinets, and particularly relates to a positive-pressure heat-insulation constant-temperature air circulation cabinet.

Background

A cabinet is a freestanding or self-supporting enclosure for housing electrical or electronic equipment. Cabinets are typically configured with doors, removable or non-removable side panels and back panels. The cabinet is an indispensable component in the electrical equipment and is a carrier of the electrical control equipment. Typically made of cold rolled steel sheet or alloy. Can provide the protection functions of water resistance, dust prevention, electromagnetic interference resistance and the like for the storage equipment. According to the demand, can be equipped with the electrical equipment of multiple different grade type in the rack, in order to guarantee the normal operating of equipment simultaneously, not only be provided with the distribution lines, still be equipped with reserve UPS power simultaneously. In addition, in order to systematically solve the problems of high-density heat dissipation, a large number of cable attachments and management, high-capacity power distribution and comprehensive compatibility of rack-mounted equipment of different manufacturers in internal equipment, the cabinet is internally provided with various auxiliary facilities, so that the cabinet can operate in a high-stability environment.

The existing cabinet structure is divided into an indoor type and an outdoor type according to a setting scene, wherein the cabinets of the two types are respectively emphasized, the indoor cabinet is more emphasized on the size, and the outdoor cabinet is more emphasized on the protection. And outdoor rack is different owing to setting up the scene, especially has the remote area of bad weather environmental condition, because the manpower can't in time reach, and maintenance cycle is longer, then need guarantee can guarantee that inner structure operates steadily in longer live time. The intelligent ecological photoelectric cabinet is a type of cabinet which can be applied to severe environmental conditions and can maintain the internal environment in a better state through an internal intelligent system, so that a virtuous cycle ecological environment is formed inside, and a stable operation environment is provided for internal photoelectric equipment.

Also there is similar solution among the current rack technique, nevertheless mostly can't accomplish balance when solving heat dissipation, thermal-insulated, dustproof waterproof scheduling problem simultaneously, especially set up in desert or the area of the invasion and attack of the sand blown by the wind all the year round, for balanced dustproof and heat dissipation problem, if adopt more auxiliary assembly to solve above-mentioned problem, then must lead to the setting and the running cost of whole rack to improve by a wide margin. In the prior art, an internal air conditioning system is adopted for temperature control, but the power consumption is high in the mode, the setting and maintenance cost is high, and if a fault occurs, maintenance personnel cannot reach the fault in time, equipment in the whole cabinet is possibly down or damaged.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides the positive-pressure heat-insulation constant-temperature air circulation cabinet, and a set of constant-temperature system with low cost and high stability is provided, so that a good heat dissipation effect can be provided for equipment in the cabinet, and meanwhile, good tightness can be kept in an extreme environment.

The technical scheme adopted by the utility model is as follows:

in a first aspect, the utility model provides a positive-pressure heat-insulation constant-temperature air circulation cabinet, which comprises a sealed cabinet body with heat insulation materials, wherein an air inlet system and an air exhaust system are arranged in the cabinet body, the cabinet body comprises a PID operation control module and an environment monitoring module with an air pressure detection function, and the PID operation control module receives data of the environment monitoring module and controls the air inlet system and the air exhaust system.

Firstly, the cabinet is an outdoor cabinet, and a heat insulation material and a dustproof structure are arranged inside a common outdoor cabinet, so that the cabinet has better heat insulation performance and dustproof performance. Due to the characteristics, and the equipment in the cabinet needs to be kept in an operating state for a long time, heat continuously generated by the equipment cannot be timely dissipated outwards due to the existence of the heat insulation material. The continuous accumulation of heat can lead to a continuous rise in the temperature inside the cabinet, which, if exceeded, can cause internal equipment failure and even fire.

Among the cooling system that ordinary rack set up, can be usually because air inlet pressure is big, the pressure of airing exhaust is little, when not possessing special controlgear, can't adjust according to the internal actual environment factor of cabinet, inside atmospheric pressure obviously can be less than outside atmospheric pressure after long-time outdoor use, then leads to the relatively poor rack of sealing performance can follow some gaps and get into the outside air, leaks for a long time and can lead to getting into the dust and sand in the rack to influence equipment normal operating.

The cabinet is provided with the air circulation system, the system is controlled by the PID operation control module and the environment sensor, and internal and external air circulation can be continuously performed after the temperature in the cabinet body reaches a certain threshold value, so that internal heat is continuously taken out. Meanwhile, in the process of keeping continuous air circulation, the power of the air inlet system and the power of the air exhaust system are controlled to always keep the air inlet volume larger than the air exhaust volume, so that the cabinet body is in a positive pressure state. Under the malleation state, the outside air can not get into the cabinet internally under no exogenic action, then as long as keep the malleation state, the cabinet body also has better dustproof effect even there is the gap.

It is worth to be noted that although the outdoor environment has a large temperature variation range, the core temperature of a single functional module can generally reach 60 ℃ or even above 70 ℃ because the equipment in the cabinet can continuously generate heat after continuously running, and because the cabinet body has a heat insulation material, the heat dissipation efficiency is low through the heat insulation material, and the continuously accumulated heat can also reach dangerous temperature, and a continuous heat exchange state with the outside is required to be kept.

It is worth to be further explained that the PID operation control module is a common equipment controller, generally, independent finished products are purchased, and only parameters need to be adjusted according to use requirements during assembly. The equipment can automatically determine the operation power and control the corresponding air inlet system or the corresponding air exhaust system by receiving the environmental information.

In combination with the first aspect, the present disclosure provides a first implementation manner of the first aspect, wherein the environment detection module includes an air pressure sensor disposed inside the cabinet.

In order to maintain the positive pressure state, acquiring the internal and external pressure difference is a necessary control basis. Miniature baroceptor can be fast and accurate detect the atmospheric pressure value in the certain limit, will acquire inside and outside pressure differential, then need set up a baroceptor in cabinet body inside at least. The single air pressure sensor needs to obtain the internal and external pressure difference, the air inlet system and the exhaust system need to be closed at regular time, the reading of the air pressure sensor is used as the external air pressure value after the single air pressure sensor lasts for a certain time, then the air inlet system and the exhaust system are opened to be adjusted, the internal air pressure value is always higher than the parameter, the periodic stop detection is carried out, and therefore the positive pressure state can be maintained when only the single air pressure sensor is arranged.

With reference to the first aspect or the first implementation manner of the first aspect, the present invention provides a second implementation manner of the first aspect, and the environment detection module further includes a temperature sensor.

Due to the complex outdoor environment, different temperature variation ranges can appear in different areas, and in order to reduce energy consumption, a temperature sensor is required to be arranged to acquire internal environment temperature parameters. The PID operation control module can adjust the operation state according to the real-time temperature, and if the temperature is lower than the lowest threshold value, the exhaust system can be closed, and only the intermittent operation of the air inlet system is kept to maintain the positive pressure state in the cabinet body. And only when the temperature is higher than a certain threshold value, the two systems are started simultaneously, and the running power is adjusted according to the temperature parameter.

In combination with the first aspect, the present invention provides a third implementation of the first aspect, wherein the environment detection module comprises at least two sets of temperature sensors and air pressure sensors disposed inside/outside the cabinet.

In order to further improve the control precision, a set of sensors is required to be arranged inside and outside the device respectively, so as to obtain accurate internal and external environment parameters in real time.

With reference to the third embodiment of the first aspect, the present invention provides a fourth embodiment of the first aspect, wherein the air intake system and the air exhaust system continue to operate after the temperature in the cabinet reaches the set threshold, and the intake air volume is greater than the exhaust air volume.

With reference to the third embodiment of the first aspect, the present invention provides a fifth embodiment of the first aspect, wherein the air intake system includes an air intake channel, an air intake fan and a filter cover disposed on the air intake channel, and the air intake fan disposed inside the cabinet forms a negative pressure inside the filter cover, so that the external air enters the cabinet through the filter cover.

With reference to the fifth implementation manner of the first aspect, the utility model provides the sixth implementation manner of the first aspect, a dust removal fan and a dust removal air duct are further arranged in the cabinet body, and the dust removal fan blows internal air to the outer side surface of the filter cover through the dust removal air duct to remove dust.

Because the setting of outdoor, under the fan that admits air continued work, the filter mantle surface on the inlet air duct can gather a certain amount of dust in a certain time to influence the efficiency of admitting air. If not processed in time, the circulating air quantity in the whole cabinet body can be influenced, so that the heat dissipation efficiency is influenced. Therefore, an independent air blowing structure is arranged in the cabinet body, and air filtered inside is blown out outwards at fixed time, so that dust on the outer surface of the filter cover is removed, and the ventilation quantity of the filter cover can be kept in a certain range.

With reference to the third embodiment of the first aspect, the present invention provides a seventh embodiment of the first aspect, wherein the exhaust system includes an exhaust channel that is communicated in one direction and an exhaust fan disposed in the cabinet.

The utility model has the beneficial effects that:

according to the utility model, through the arranged circulating constant temperature system, the circulating ventilation and heat dissipation can be continuously performed after the temperature in the cabinet body exceeds the threshold value, compared with an air conditioning system, the energy consumption is lower, the stability is higher, and heat exchange structures such as a compressor and the like are not needed; meanwhile, the PID operation control module can control the exhaust system and the air inlet system to always keep a positive pressure state in the cabinet body under continuous circulation gas circulation according to the internal and external air pressure, so that external dust cannot enter the cabinet body from possible gaps.

Drawings

FIG. 1 is a schematic front view of a cabinet according to the present invention;

FIG. 2 is a schematic side view of a cabinet according to the present invention;

FIG. 3 is a side schematic view of a cabinet according to the present invention;

FIG. 4 is a rear view of the cabinet of the present invention;

FIG. 5 is an internal view of the lower portion of the enclosure with portions of the baffles removed in accordance with the present invention;

fig. 6 is a schematic architecture diagram of the heat dissipation cycle system of the present invention.

In the figure: 1-cabinet body, 2-frame, 3-exhaust fan, 4-exhaust end, 5-air inlet end, 6-control module, 7-dust removal fan, 8-PID operation control module, 9-air pressure sensor, A-exhaust system and B-air inlet system.

Detailed Description

The utility model is further explained below with reference to the drawings and the specific embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

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 application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion 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 application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being 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 meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

the embodiment discloses a positive pressure heat insulation constant temperature air circulation cabinet, which is shown in fig. 1-6, and fig. 1-5 show schematic views of various angles of the cabinet.

The cabinet body 1 part of the cabinet comprises a main body frame and a plurality of metal partition plates fixed on the main body frame, and the two-side partition plates are arranged at the top part, so that a better heat insulation effect is provided. And the upper parts of the external upright posts of the main body frame are respectively provided with a hanging ring which is used for being matched with external hoisting equipment to carry out dismounting and transportation.

The main body frame in the cabinet body 1 is equipped with a plurality of thing boards including setting up frame 2 at 1 middle part of the cabinet body in the frame 2, puts the thing board through setting up the difference and carries out the subregion, sets up communication equipment in the middle main subregion, generally is the switch. The upper subarea is mainly provided with a control box for cabinet power management and power protection equipment, namely a plurality of circuit breakers and SPDs are arranged on the bent. While the lower section is primarily provided with heavier mass backup batteries and other equipment.

Since the metal plate is used as the partition, a large area of heat insulating material, generally a polyurethane plate, is attached to the partition inside the cabinet 1 by an adhesive or a fixing clip, in order to improve the heat insulating performance. As can be seen in the figure, the width of the frame in the cabinet body 1 is smaller than the gap between the partition boards, a polyurethane board with a certain thickness is arranged in the partition boards, and the partition boards are arranged in the inner layer to form an interlayer.

Further, because this kind of frame construction can have great contact gap, in order to improve sealing performance, can set up the adhesive tape in main gap department to still be equipped with waterproof glue layer alone in the inboard, can provide better water-proof effects. However, the cabinet body 1 has a large size, and the metal plate itself may be warped or deformed locally during installation and use, so that a gap cannot be avoided.

In order to improve dustproof effect in this embodiment, improve the radiating efficiency simultaneously, then set up one set of circulation cooling system in the cabinet body 1, specifically including setting up air inlet system B and the exhaust system A at cabinet body 1 back. The air inlet system B comprises an air inlet end 5 arranged at the bottom of the back of the cabinet body 1, an air inlet cover arranged outside the air inlet end, a filter cover fixed at the outer side of an air inlet end channel by the air inlet cover and an air inlet fan at the inner side. The exhaust system A comprises an exhaust end 4 arranged at the upper part of the back surface of the cabinet body 1, an exhaust hood at the outer side of the exhaust end 4 and an exhaust fan at the inner side.

Wherein, the air inlet cover outside the air inlet end 5 is a detachable structure, is rotatably connected with the back plate of the cabinet body 1, and can fix the filter cover inside the air inlet cover on the outer side surface of the air inlet end in a buckling manner. And the internal air inlet fan can form negative pressure at the inner side of the air inlet end 5, so that external air can enter from the lower opening of the air inlet hood and enter the cabinet body 1 through the filter hood. Because the filter mantle is vertical setting, and the air inlet terminal surface of inlet hood is the level setting, then impurity that has certain quality can be blockked by the filter mantle and then drop down, but partial floating dust can gather on the filter mantle surface. Meanwhile, a dust removal air duct from the inside to the outside is further arranged at the air inlet cover, a dust removal fan 7 is further arranged inside the cabinet body 1, the dust removal fan 7 blows out the internal air outwards, and dust collection outside the air inlet cover is blown off in a blowing mode, so that a certain dust removal effect is achieved, and the efficiency of the whole constant temperature system is maintained.

The exhaust hood outside the exhaust end 4 is also provided with a downward port, a return air channel is arranged in the exhaust hood, a one-way valve is further arranged on the air channel of the exhaust end 4, and external dust can be prevented from entering the cabinet body 1 from the exhaust end 4 through the structure.

Furthermore, a PID operation control module 8 is arranged in a control box in the cabinet body 1 and is connected with the motor parts of the air inlet fan and the exhaust fan 3 through a wire harness. Simultaneously set up a plurality of temperature sensor and baroceptor 9 in the cabinet body 1 different regions, be equipped with a plurality of temperature sensor and baroceptor 9 outside the cabinet, above-mentioned sensor all is connected with the control box, receives by control module 6 in the control box and corresponds interior outer environment information and handles, uploads all data to high in the clouds and carries out remote monitoring, and the average value (or confirm through the algorithm that have the weight of the reference value) that obtains after will handling simultaneously sends to PID operation control module 8. The PID operation control module 8 regulates and controls the operation power of the air inlet fan and the exhaust fan 3 by referring to the internal and external temperature and the air pressure difference.

The internal temperature is used as a starting reference value, and a determined operation power parameter can be obtained in each temperature range by setting a step temperature threshold value so as to form a standard operation power table. The PID operation control module 86 adjusts the operation power parameter according to the internal-external pressure difference, so that the internal-external pressure difference is kept within a certain range, i.e. the interior is always in a positive pressure state.

The present invention is not limited to the above-described alternative embodiments, and various other forms of products can be obtained by anyone in light of the present invention. The above detailed description should not be taken as limiting the scope of the utility model, which is defined in the claims, and which the description is intended to be interpreted accordingly.

Claims (8)

1. The utility model provides a heat-insulated constant temperature air cycle rack of malleation, is provided with air inlet system (B) and exhaust system (A) including the cabinet body (1) that has thermal insulation material in the cabinet body (1), its characterized in that: the air inlet control system comprises a PID operation control module (8) and an environment monitoring module with an air pressure detection function, wherein the PID operation control module (8) receives data of the environment monitoring module to control an air inlet system (B) and an air outlet system (A).

2. The positive pressure, insulated, constant temperature air circulation cabinet of claim 1, wherein: the environment detection module comprises an air pressure sensor (9) independently arranged inside the cabinet body (1).

3. The positive pressure, insulated, constant temperature air circulation cabinet according to claim 1 or 2, wherein: the environment detection module further comprises a temperature sensor.

4. The positive pressure, insulated, constant temperature air circulation cabinet of claim 1, wherein: the environment detection module comprises at least two groups of temperature sensors and air pressure sensors (9) which are arranged inside/outside the cabinet body (1).

5. The positive pressure, insulated, constant temperature air circulation cabinet of claim 4, wherein: the air inlet system (B) and the air exhaust system (A) continuously work after the temperature in the cabinet body (1) reaches a set threshold value, and the air inlet volume is greater than the air exhaust volume.

6. The positive pressure, insulated, constant temperature air circulation cabinet of claim 4, wherein: the air inlet system (B) comprises an air inlet channel, an air inlet fan and a filter cover arranged on the air inlet channel, and negative pressure is formed on the inner side of the filter cover by the air inlet fan arranged in the cabinet body (1) so that external air enters the cabinet body (1) through the filter cover.

7. The positive pressure, insulated, constant temperature air circulation cabinet of claim 6, wherein: still be equipped with dust exhausting fan (7) and dust removal wind channel in the cabinet body (1), blow the inside air to the filter mantle outside surface through dust removal wind channel by dust exhausting fan (7) and remove dust.

8. The positive pressure, insulated, constant temperature air circulation cabinet of claim 4, wherein: the exhaust system (A) comprises an exhaust channel which is communicated in a one-way mode and an exhaust fan (3) which is arranged in the cabinet body (1).

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