CN206963259U - Outdoor closed cabinet and its cooling mechanism - Google Patents

Abstract

The utility model relates to the technical field of outdoor cabinet cooling, and discloses an outdoor airtight cabinet and its heat dissipation mechanism. The heat dissipation mechanism includes a heat dissipation module, and the heat dissipation module is composed of heat pipes arranged to absorb heat. section and the heat release section of the heat pipe located outside the airtight cabinet, and at least one side of the heat absorption section and the heat release section of the heat pipe is provided with a blower device or an air induction device. The outdoor airtight cabinet and its heat dissipation mechanism provided by the utility model can meet the heat dissipation requirements of an airtight cabinet arranged outdoors and have the advantages of compact structure and low energy consumption.

Description

Outdoor airtight cabinet and its cooling mechanism

technical field

The utility model relates to the technical field of outdoor cabinet cooling, in particular to an outdoor airtight cabinet and a cooling mechanism thereof.

Background technique

Outdoor cabinets installed in harsh environments in desert areas and coastal areas, such as electrical cabinets, special function cabinets, control cabinets, etc., are generally unattended for a long time, so in order to prevent damage to the harsh environment (such as wind and sand erosion or salt spray corrosion) The internal electronic components of the cabinet need to be made into a sealed structure, but the sealed structure is not conducive to the heat dissipation of the internal electronic components, and an excellent and reliable heat dissipation method is required to provide a good heat dissipation path for the internal electronic heating components to ensure that the internal electronic components work in safety. within the temperature range.

At present, the heat dissipation schemes used in outdoor cabinets mainly include the following types: (1) The internal components of the cabinet are directly in contact with the external environment, relying on the fan to blow the ambient wind through the radiator of the internal components, and bring the heat into the environment. This type of cabinet is small in size, The heat exchange efficiency is high, and the power consumption is small. The disadvantage is that it cannot effectively shield the impact of the harsh environment, and the overall failure rate is high. (2) The cabinet is made into a closed type, and then the air conditioner is installed externally. This scheme has a good heat dissipation effect, but the power consumption is high, and the cooling capacity is limited by the volume, so it cannot achieve a large cooling capacity, and the air conditioner is exposed to harsh environments. Among them, although the failure rate of the internal components of the cabinet has decreased, the failure rate of the air conditioner has increased, which is also not conducive to the stable operation of the overall system. (3) Make the cabinet into a closed type, set a cooling cabinet next to the closed cabinet, and install a heat exchanger inside the closed cabinet. The working medium is water or antifreeze, and the heat inside the closed cabinet is brought into the cooling cabinet. Heat exchange discharges heat into the environment. This solution has stable heat exchange and low failure rate, but the overall structure is loose and occupies a large space. Due to the use of a working fluid circulation pump, the power consumption is also relatively large.

Utility model content

The purpose of this utility model is to provide a heat dissipation mechanism of an outdoor airtight cabinet. The heat dissipation mechanism has a compact structure and is integrated on the body of the airtight cabinet. On the basis of meeting the heat dissipation requirements of the airtight cabinet, the space size of the airtight cabinet is reduced. Another object of the present utility model is to provide an outdoor airtight cabinet including the above heat dissipation mechanism.

In order to achieve the above purpose, the utility model provides a heat dissipation mechanism of an outdoor airtight cabinet, which includes a heat dissipation module, and the heat dissipation module is formed by an arrangement of heat pipes. The heat release section of the heat pipe, at least one side of the heat absorption section and the heat release section of the heat pipe is provided with a blowing device or an air induction device.

As a preferred solution, a support is fixedly connected to the outside of the airtight cabinet, and the heat release section of the heat pipe is located inside the support.

As a preferred solution, the heat-absorbing section of the heat pipe is divided into two groups, the air blowing device or the air-inducing device is arranged between the two groups of heat-absorbing sections of the heat pipe; the heat-releasing section of the heat pipe is divided into two groups, and the air blowing device or The air induction device is arranged between the two groups of heat pipe heat release sections.

As a preferred solution, one end of the heat-absorbing section of the heat pipe is provided with an air-inducing device, and the other end is provided with an air-blowing device; one end of the heat-releasing section of the heat pipe is provided with an air-inducing device, and the other end is provided with an air-blowing device.

As a preferred solution, the air blowing device is arranged inside the airtight cabinet and opposite to the heat absorbing section of the heat pipe; the air induction device is arranged outside the airtight cabinet and opposite to the heat releasing section of the heat pipe.

As a preferred solution, the heat-absorbing section of the heat pipe and the heat-discharging section of the heat pipe are respectively fixedly connected with heat exchange fins.

As a preferred solution, the heat pipe is a straight heat pipe or a loop heat pipe.

As a preferred solution, the heat exchange fins are welded to the heat absorbing section of the heat pipe and the heat releasing section of the heat pipe.

In order to achieve the same purpose, the present invention also provides an outdoor airtight cabinet, comprising the airtight cabinet body and the above-mentioned heat dissipation mechanism, the heat pipe of the heat dissipation mechanism passes through the side wall of the airtight cabinet body and is embedded in the side wall of the airtight cabinet body The side wall of the cabinet body is sealed and connected.

The outdoor airtight cabinet and its heat dissipation mechanism provided by the above technical solution include a heat-absorbing section of a heat pipe located inside the airtight cabinet and a heat-releasing section of a heat pipe located outside the airtight cabinet, wherein the heat-absorbing section of the heat pipe absorbs the heat inside the airtight cabinet and dissipates the absorbed heat. The heat of the heat pipe is transferred to the heat release section of the heat pipe located outside the closed cabinet through the heat pipe. The heat release section of the heat pipe directly contacts the outdoor environment and releases the heat to the outside. The side of the heat release section of the heat pipe is provided with a blast device or an air induction device to accelerate the air flow near the heat pipe, so as to achieve the purpose of accelerating the heat dissipation speed of the airtight cabinet. The utility model has a compact structure, integrates an airtight cabinet and a heat dissipation device, and reduces the space size of the airtight cabinet on the basis of meeting the heat dissipation requirements of the airtight cabinet.

In addition, the utility model fixes the connecting bracket on the outside of the airtight cabinet, and arranges the heat-radiating section of the heat pipe inside the bracket, which avoids bumping of the heat-radiating section of the heat pipe and facilitates transportation.

Further, the utility model divides the heat release section of the heat pipe into two groups, and an axial fan unit is arranged between the two groups of heat pipe heat release sections, and the air inlet side of the axial flow fan unit is facing the heat release of the first group of heat pipes. Section, as the air induction device of the heat release section of the first group of heat pipes; the air outlet side of the axial flow fan unit is facing the heat release section of the second group of heat pipes, as the blower device of the heat release section of the second group of heat pipes; and the said The heat-absorbing section of the heat pipe is divided into two groups, and the axial flow fan unit is arranged between the two groups of heat-pipe heat-absorbing sections, which is beneficial to reduce the number of working fans, realize the full utilization of the fans, further save energy consumption and make the airtight cabinet The structure is more compact.

Furthermore, the utility model welds the heat exchange fins on the heat absorption section of the heat pipe and the heat release section of the heat pipe respectively, and the axial flow fan arranged inside the airtight cabinet drives the internal hot air to exchange heat through the heat exchange fins, and transfers the heat through the heat pipes. Conducted to the heat exchange fins on the outside of the airtight cabinet, relying on the axial flow fan to transfer the heat to the external environment, this structure increases the heat absorption area of the heat dissipation module inside the airtight cabinet and the heat dissipation area outside the airtight cabinet, and improves the airtight cabinet. heat transfer efficiency.

Description of drawings

Fig. 1 is a schematic diagram of the internal structure of the utility model;

Fig. 2 is the front view of the external structure of the utility model;

Fig. 3 is a left view of the external structure of the utility model;

Fig. 4 is the structural representation of the second embodiment of the utility model;

Fig. 5 is the structural representation of the third embodiment of the utility model;

Fig. 6 is a front view of the external structure of the third embodiment of the utility model.

Among them: 1. The side wall of the airtight cabinet; 2. The heat release section of the heat pipe; 3. The heat absorption section of the heat pipe; 4. The heat exchange fin; 5. The axial fan; 6. The first group of heat pipe heat release section; 8. Bracket; 9. Cooling module; 10. Air induction device; 11. Blowing device; A, outside of the closed cabinet; B, inside of the closed cabinet.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

The first embodiment of the outdoor airtight cabinet and its heat dissipation mechanism

As shown in Figure 1-3, the outdoor airtight cabinet and its heat dissipation mechanism provided by the embodiment of the present utility model include a heat dissipation module, and the heat dissipation module is formed by an arrangement of heat pipes, and the heat pipes are straight or loop heat pipes. The sintered direct heat pipe is selected in the airtight cabinet side wall 1. There are through holes with the same number as the heat pipes. The heat pipes are inserted into the through holes and sealed with the side wall 1 of the airtight cabinet. The heat-absorbing section 3, the part located outside the airtight cabinet is the heat pipe heat release section 2, the heat pipe heat release section 2 is divided into two groups, and an axial flow fan unit 5 is arranged between the two groups of heat pipe heat release sections 2, and the axial flow air The air inlet side of the unit 5 is facing the heat release section 6 of the first group of heat pipes, as the air induction device for the heat release section 6 of the first group of heat pipes; the air outlet side of the axial flow fan unit 5 is directly facing the heat release section 7 of the second group of heat pipes , as the blowing device of the heat release section 7 of the second group of heat pipes; In this embodiment, the blower device and the air induction device are integrated on the same group of fans, which is beneficial to reduce the number of working fans, realize full utilization of the fans, further save energy consumption and make the structure of the airtight cabinet more compact. Its working process is as follows: the axial flow fan unit 5 installed inside the airtight cabinet works to drive the hot air inside the airtight cabinet to exchange heat through the heat exchange fins 4, and the heat energy absorbed by the heat exchange fins 4 in the airtight cabinet is transferred to the airtight chamber through the heat pipe. The heat exchange fins 4 on the outside of the cabinet and the axial flow fan unit 5 outside the closed cabinet work to drive the outdoor cold air to exchange heat through the heat exchange fins 4, the fins outside the closed cabinet are cooled, and the cold air in the heat pipe is transferred to the The inside of the airtight cabinet is closed, thereby reducing the temperature of the heat exchange fins 4 inside the airtight cabinet, and the purpose of cooling the airtight cabinet is realized by circulating the above process. In addition, by fixing the connection bracket 8 outside the airtight cabinet and arranging the cooling module inside the bracket 8, bumping of the cooling module is avoided and transportation is facilitated.

Compared with the existing technology, this structure integrates the heat dissipation mechanism with the airtight cabinet body, has a compact structure, is convenient for transportation, and only needs to drive the fan to realize the heat dissipation effect of the airtight cabinet, which minimizes the movement of machinery and reduces energy consumption. consumption. By welding the heat exchange fins 4 on the heat absorption section 3 of the heat pipe and the heat release section 2 of the heat pipe, the axial flow fan 5 installed inside the closed cabinet drives the internal hot air to exchange heat through the heat exchange fins 4, and conducts heat through the heat pipe The heat exchange fins 4 to the outside of the airtight cabinet rely on the axial flow fan 5 to transfer heat to the external environment. This structure increases the heat absorption area of the heat dissipation module inside the airtight cabinet and the heat dissipation area outside the airtight cabinet, improving the airtight cabinet. heat transfer efficiency.

The second embodiment of outdoor airtight cabinet and heat dissipation mechanism thereof

As shown in Figure 4, the outdoor airtight cabinet and its heat dissipation mechanism provided by this embodiment, the difference between the heat dissipation mechanism of this embodiment and Embodiment 1 is as follows: the heat-absorbing section 3 of the heat pipe and the heat-dissipating section 2 of the heat pipe are not grouped , one end of the heat-absorbing section 3 of the heat pipe is provided with an air-inducing device 10 for the air-introduction of the heat-absorbing section 3 of the heat pipe; It works simultaneously with the air induction device 10 to speed up the air flow near the heat dissipation module outside the airtight cabinet. One end of the heat release section 2 of the heat pipe is provided with an air induction device 10 , and the other end is provided with an air blowing device 11 . Both the air induction device 10 and the blower device 11 in this embodiment are axial flow fans.

The heat dissipation mechanism of this embodiment and other structures of the outdoor airtight cabinet including the heat dissipation mechanism are the same as those of Embodiment 1, and will not be repeated here.

The third embodiment of outdoor airtight cabinet and heat dissipation mechanism thereof

As shown in Figures 5-6, the outdoor airtight cabinet and its heat dissipation mechanism provided by this embodiment, the difference between the heat dissipation mechanism of this embodiment and Embodiment 1 is as follows: the air blowing device 11 is arranged inside the airtight cabinet, and the air blower The air outlet of the device 11 is arranged opposite to the heat-absorbing section 3 of the heat pipe; the air-inducing device is arranged on the outside of the airtight cabinet, and the air inlet of the air-introducing device is arranged opposite to the heat-emitting section 2 of the heat pipe; the cooling modules on both sides of the airtight cabinet can be It is one or more groups. In this embodiment, in order to make the structure more compact, it is set as one group. Both the air induction device and the blower device in this embodiment are axial flow fans.

The heat dissipation mechanism of this embodiment and other structures of the outdoor airtight cabinet including the heat dissipation mechanism are the same as those of Embodiment 1, and will not be repeated here.

The above is only the preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and replacements can also be made. And replacement should also be regarded as the protection scope of the present utility model.

Claims (9)

1. a kind of outdoor closed cabinet cooling mechanism, including radiating module, the radiating module are arranged to make up by heat pipe, the heat pipe Heat pipe heat release section including the heat pipe heat-absorbing section inside closed cabinet and outside closed cabinet, it is characterised in that：The heat At least one sidepiece of both pipe endotherm section and heat pipe heat release section is provided with air-blast device or blower unit.

2. outdoor closed cabinet cooling mechanism according to claim 1, it is characterised in that the outside of the closed cabinet, which is fixed, to be connected Support is connected to, the heat pipe heat release section is located at the inside of support.

3. outdoor closed cabinet cooling mechanism according to claim 1, it is characterised in that the heat pipe heat-absorbing section is divided to two groups, The air-blast device or blower unit are arranged between two groups of heat pipe heat-absorbing sections；

The heat pipe heat release section is divided to two groups, and the air-blast device or blower unit are arranged between two groups of heat pipe heat release sections.

4. outdoor closed cabinet cooling mechanism according to claim 1, it is characterised in that one end of the heat pipe heat-absorbing section is set There is blower unit, its other end is provided with air-blast device；

One end of the heat pipe heat release section is provided with blower unit, and its other end is provided with air-blast device.

5. outdoor closed cabinet cooling mechanism according to claim 1, it is characterised in that the air-blast device is arranged at closed It is oppositely arranged inside cabinet and with the heat pipe heat-absorbing section；

The blower unit is arranged at outside closed cabinet and is oppositely arranged with the heat pipe heat release section.

6. the outdoor closed cabinet cooling mechanism according to any one in claim 1-5, it is characterised in that：The heat pipe is inhaled Heat exchange fin has been respectively fixedly connected with hot arc and heat pipe heat release section.

7. the outdoor closed cabinet cooling mechanism according to any one in claim 1-5, it is characterised in that：The heat pipe is Directly-heated pipe or loop circuit heat pipe.

8. outdoor closed cabinet cooling mechanism according to claim 6, it is characterised in that：The heat exchange fin is welded in described On heat pipe heat-absorbing section and heat pipe heat release section.

A kind of 9. outdoor closed cabinet, it is characterised in that：Family including closed cabinet body and as any one of claim 1-8 Outer closed cabinet cooling mechanism, the heat pipe through closed cabinet side wall and embedded in closed cabinet body side wall in and closed cabinet body Side wall be tightly connected.