CN105115078A - Outdoor building constant temperature control system and its method, and energy-saving communication base station - Google Patents

Abstract

The invention discloses an outdoor building constant temperature control system and a method thereof and an energy-saving communication base station, wherein the outdoor building constant temperature control system comprises a constant temperature device and a heat dissipation device; the constant temperature device comprises an air conditioner arranged on the indoor wall, a microcontroller arranged indoors, a temperature sensor used for sensing outdoor temperature, an electric lifting door positioned on the inner side of the heat dissipation device and a fan fixed above the electric lifting door; a heat exchange chamber is formed between the heat dissipation device and the electric lifting door; wherein, temperature sensor and microcontroller electric connection, air conditioner, the motor and the fan of drive electric lift door respectively with microcontroller electric connection. The invention adopts the heat dissipation device communicated with the outdoor to fully absorb the cold source of the outdoor, and then exchanges the indoor air with the air in the heat exchange chamber by using the fan, thereby achieving the purpose of constant temperature control, and avoiding opening the air conditioner as much as possible, thereby realizing the purpose of energy saving.

Description

Outdoor building constant temperature control system and its method, and energy-saving communication base station

technical field

The present invention relates to a temperature control system, in particular to a constant temperature control system and method for an independently installed outdoor building and an energy-saving communication base station formed by the system.

Background technique

Outdoor buildings such as communication base stations in the prior art have relatively strict requirements on temperature due to the requirements of internal equipment. Therefore, such outdoor buildings are usually equipped with air-conditioning equipment, but due to the large temperature difference, such outdoor buildings have relatively thick walls. The external cold source cannot be used well, resulting in that when the outdoor temperature is lower than the required temperature control value, the outdoor cold source cannot be used quickly and effectively to control the indoor temperature, and the compressor of the air conditioner is still used for heat dissipation, resulting in The power consumption increases, causing unnecessary waste.

Contents of the invention

In order to make up for the above-mentioned defects in the prior art, the object of the present invention is to provide a device and method for shaping ring metal parts.

Technical scheme of the present invention is:

The outdoor building constant temperature control system of the present invention includes a constant temperature device for maintaining constant control of the indoor temperature and a heat dissipation device for diffusing the heat released in the room; the heat dissipation device is adjacent to the outside and fixed on the wall, and the constant temperature device includes a device The air conditioner on the indoor wall, the microcontroller installed in the room, the temperature sensor used to sense the outdoor temperature, the electric lift door located inside the cooling device and the fan fixed above the electric lift door; the cooling device and the electric lift A heat exchange chamber is formed between the doors; among them, the temperature sensor is electrically connected to the microcontroller, and the air conditioner, the motor driving the electric lifting door and the fan are respectively electrically connected to the microcontroller; when the temperature sensor senses that the outdoor temperature is high, The micro-controller drives the air conditioner to start work, and the indoor temperature is controlled, and the micro-controller drives the fan and the electric lift door to be closed; when the temperature sensor senses that the outdoor temperature is lower than the minimum set value, according to the door set on the electric lift, The opening position sensor and the temperature control command sent by the microcontroller control the electric lift door to open appropriately. The opening amount is determined by the temperature control command. The air is convected to ensure a constant indoor temperature; when the electric lift door is fully opened and the power of the fan is turned on to the maximum, when the indoor temperature still rises to the highest set value, the air conditioner starts to work.

Its further technical solution is: the wall and the electric lifting door are both made of heat insulating materials.

Its further technical solution is: the heat dissipation device is a closed metal plate structure with two ends connected to the wall.

The outdoor building constant temperature control system of the present invention includes a constant temperature device for maintaining constant control of the indoor temperature and a heat dissipation device for diffusing the heat released in the room; There is a thermal insulation partition between them; the constant temperature device includes an electric lift door at the outlet of the heat exchange chamber, a first fan located inside the electric lift door and a second fan located at the inner end of the heat exchange chamber. The interior of the chamber is located under the insulation partition; when the temperature sensor senses that the outdoor temperature is higher than the set value, the micro-controller controls the electric lift door to close, the second fan enters the air, and the first fan outputs the air, so that The indoor air and the heat exchange chamber form a counterclockwise convection to speed up the uniformity of the indoor temperature, and use the heat sink to absorb and dissipate heat to control the indoor temperature; when the temperature sensor senses that the outdoor temperature is lower than the set value, The micro-controller controls the opening degree of the electric lift door, the speed of the first fan, and the speed of the second fan, so that the outdoor heat can enter the heat exchange chamber, and the heat exchange is carried out through the heat dissipation device, and the heat dissipation device The absorbed energy is dissipated at the same time to ensure a constant indoor temperature.

Its further technical solution is: the thermostatic device further includes a third fan located above the electric lifting door.

Its further technical solution is: the wall is fixed in a pit, and the heat exchange chamber is embedded in the pit.

Its further technical solution is: the heat dissipation device adopts a hollow cavity structure with a built-in heat storage medium, and it includes several metal bodies connected to each other. The radiating fins are used to dissipate heat through the radiating fins.

Its further technical solution is: the upper end of the metal body is provided with a tapered column, the lower end is provided with a tapered hole, and the middle part is also provided with a through cavity, and each two metal bodies are inserted into the tapered hole through a tapered column. Connect up and down.

The present invention also provides a constant temperature control method, which determines the air volume of the first fan, the second fan and the third fan, and the opening of the electric lift door by collecting the indoor temperature T1, the temperature T2 of the heat exchange chamber and the outdoor temperature T3 Spend;

When the temperature T2 of the heat exchange chamber and the outdoor temperature T3 are both higher than the high temperature control value, the first fan, the second fan and the third fan, as well as the electric lifting door are turned off, and the air conditioner is started to realize constant temperature control;

When the temperature T2 of the heat exchange chamber is lower than the high temperature control value and the outdoor temperature T3 is higher than the high temperature control value, the third fan and the electric lift door are closed, and the first fan and the second fan are at the same time, one for air intake and one for air output , the heat exchange chamber and the room form air convection, and the heat emitted by the equipment installed in the room is diffused by the flowing air to achieve constant temperature control;

When the outdoor temperature T3 is between the low value of temperature control and the high value of temperature control, and the temperature T2 of the heat exchange chamber is higher than the high value of temperature control, the first fan located at the bottom and close to the electric lift door is turned off, and the first fan located at the top is closed. The third fan enters the air, which is located below and farther than the electric lift door. The second fan blows out the air. When the electric lift door opens, the outdoor air passes through the third fan, the indoor, the second fan, the heat exchange chamber, and the electric lift door to form a heat dissipation channel. , the heat emitted by the equipment installed in the room is diffused by the flowing air to achieve constant temperature control;

When the outdoor temperature T3 and the temperature T2 of the heat exchange chamber are between the temperature control low value and the temperature control high value, the first fan located below and close to the electric lift door is turned off, the third fan located above blows air, and the third fan located below and The second fan farther than the electric lift door enters the air, the electric lift door opens and enters the wind, the outdoor air passes through the electric lift door, the heat exchange chamber, the second fan, the indoor and the third fan, forming a heat dissipation channel, and the equipment installed in the room The emitted heat is diffused by the flowing air to achieve constant temperature control.

An energy-saving communication base station of the present invention includes the aforementioned constant temperature control system for outdoor buildings, and the communication equipment is provided indoors.

Compared with the prior art, the present invention has the beneficial effects that: the present invention adopts a heat exchange chamber set separately from the indoor, and the heat dissipation device connected to the outdoor can fully absorb the outdoor cold source, and then use the fan to exchange the indoor air with heat The air in the chamber is exchanged to achieve the purpose of constant temperature control. When the temperature permits, try not to turn on the air conditioner, so as to achieve the purpose of energy saving. The structure of the invention can be used in communication base stations, and also in occasions such as outposts or meteorological detection stations.

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is a schematic top view of an outdoor building constant temperature control system provided by Embodiment 1 of the present invention;

Fig. 2 is a schematic side view of an outdoor building constant temperature control system provided by Embodiment 1 of the present invention;

Fig. 3 is a schematic side view of an outdoor building constant temperature control system provided by Embodiment 2 of the present invention;

Fig. 4 is a schematic side view of an outdoor building constant temperature control system provided by Embodiment 3 of the present invention;

5 is a circuit diagram of an outdoor building constant temperature control system provided by Embodiment 3 of the present invention;

Fig. 6 is a side view schematic diagram 1 of an outdoor building constant temperature control system provided by Embodiment 4 of the present invention;

Fig. 7 is a second schematic side view of an outdoor building constant temperature control system provided in Embodiment 4 of the present invention;

FIG. 8 is a schematic cross-sectional view (enlarged view) of the heat dissipation device in Embodiments 2 to 4 of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The implementation of the present invention will be described in detail below in conjunction with specific embodiments.

Fig. 1～6, the embodiment that the present invention provides.

Embodiment one

Referring to Fig. 1-2, the outdoor building constant temperature control system of the present invention is used to be independently located in the housing structure in the field (such as communication base stations in mountains, deserts, etc.), and it includes a constant temperature device and a heat dissipation device. The constant temperature device is used to maintain A device with a constant indoor temperature, and the cooling device is used to diffuse the heat released in the room. In this way, during the day, the indoor temperature is relatively high, which can be controlled by the constant temperature device, and the heat dissipation device is used to dissipate heat and store energy. At night, when the indoor temperature is low, the temperature can be raised by the constant temperature device, and the temperature can be lowered by the energy stored in the heat dissipation device during the day, so as to ensure the constant indoor temperature.

Specifically, the constant temperature device includes an air conditioner 101 disposed on the indoor wall 10, a microcontroller disposed indoors, a temperature sensor for sensing outdoor temperature, a cooling device 11 disposed on a certain wall, and a heat sink located on this wall. The electric lift door 102 inside the cooling device 11 and the blower fan 103 fixed above the electric lift door. A heat exchange chamber 109 is formed between the heat sink 11 and the electric lift door 102 . Wherein, the temperature sensor is electrically connected with the microcontroller, and the air conditioner 101, the motor for driving the electric lifting door 102, and the fan 103 are respectively electrically connected with the microcontroller, so that when the temperature sensor senses that the outdoor temperature is high, the microcontroller The controller drives the air conditioner 101 to start, and the indoor temperature is controlled, and the microcontroller drives the fan 103 and the electric lift door 102 to be in a closed state, reducing the impact of the external high temperature environment on the room. At night, when the temperature sensor senses that the outdoor temperature is lower than the minimum set value (such as 20-25 degrees), the electric lift is controlled according to the door opening position sensor on the electric lift 102 and the temperature control command sent by the microcontroller. The door 102 is opened moderately, and the opening amount is determined by the temperature control command. At this time, the fan starts to convect the air in the room and the air in the heat exchange chamber. In this way, the indoor temperature can be kept constant at night, basically So that there is no need to turn on the air conditioner, when the electric lift door is fully opened, the fan power is also turned on to the maximum, and when the indoor temperature still rises to the highest setting value, the air conditioner will automatically start (at this time, the indoor air is only in contact with the heat exchange chamber. Convection, still a closed space, will not cause waste of cooling capacity), thus saving energy consumption of the air conditioner, simple structure, and strong practicability. The walls and electric lifting doors are made of heat insulating materials, which can play a role of heat insulation.

In order to make better use of the heat energy emitted from the room and to absorb the heat energy from the outside world, the cooling device 11 provided on the outside of the electric lift door 102 for storing energy and dissipating heat is a closed metal structure with two ends connected to the wall body 10. Panel structure (can realize rapid heat transfer between indoor and outdoor). In summer, the temperature is high and the overall heat is surplus. At this time, during the day, the electric lifting door is closed, and the fan is also stopped, which is convenient for rapid indoor temperature control. The heat exchanged to achieve the purpose of cooling, basically do not turn on the air conditioner or seldom turn on the air conditioner, saving energy consumption. In winter, the temperature is low and the overall heat is lacking. During the day, the electric lift door is opened, and the heat dissipation device can transfer the heat in the room to the room in time. At night, the electric lifting door is closed, and the indoor temperature is controlled by the air conditioner. Such a structure has strong practicability and low cost.

The difference between embodiment two and embodiment one is:

With reference to Fig. 3, be provided with heat exchange chamber below indoor 100, constant temperature device comprises the electric lifting door 102 that is located at the outlet of heat exchange chamber, the first blower fan 1031 that is positioned at electric lifting door 102 inner side and is positioned at heat exchange chamber. The second fan 1032 at the end, the cooling device 11 is installed inside the heat exchange chamber 104, and is located under the insulation partition 108 (such as the equipment placement table of the communication base station, used to place the base station equipment 90), so that when the temperature sensor senses When the outdoor temperature is high during the day, the micro-controller controls the electric lift door 102 to close, the second fan 1032 enters the air, and the first fan 1031 outputs the air, so that the indoor air and the heat exchange chamber form counterclockwise convection. Speed up the uniformity of the indoor temperature, and use the cooling device 11 (absorbing refrigerant during the night) to absorb and dissipate heat to ensure a constant indoor temperature. The heat exchange chamber 104 can exchange hot air, and the cooling device 11 simultaneously dissipates heat from the room. Absorption, speed up the heat dissipation in the room, so as to carry out constant temperature control on the indoor temperature. When the temperature sensor senses that the night temperature is low, the microcontroller controls the size of the opening of the electric lift door 102, the speed of the first blower fan 1031, and the speed of the second blower fan 1032. In this way, after the electric lift door 102 is opened, It allows the outdoor heat to enter the heat exchange chamber 104 for heat exchange through the cooling device 11, and the energy absorbed by the cooling device 11 during the day will be dissipated at the same time to ensure that the temperature of the air entering the second fan 1032 is moderate , to ensure a constant indoor temperature, energy saving, and strong practicability.

The difference between embodiment three and embodiment two is:

Referring to Figure 4 and Embodiment 3 of Figure 5, the constant temperature device also includes a third blower fan 1033 located above the electric lift door. , the first fan 1031 blows out the air, and the third fan 1033 is turned off, so that the indoor air forms counterclockwise convection, speeds up the uniformity of the indoor temperature, and uses the heat sink to absorb and dissipate heat to ensure a constant indoor temperature. The heat exchange chamber 104 The hot air can be exchanged, and the cooling device 11 absorbs the heat emitted from the room at the same time, so as to speed up the heat dissipation in the room and ensure that the temperature of the air entering the room is lower than the temperature outside, so that the indoor temperature is kept under constant temperature control; when the temperature sensor 105 senses When the outside temperature is low (such as at night), the microcontroller 106 controls the electric lift door 102 to open through the electric lift door motor 1022, the first blower fan 1031 enters the wind, the third blower blower 1033 blows out the wind, and the second blower blower 1032 is closed. After the lifting door 102 is opened (the opening of the electric lifting door 102 is detected by the door opening position sensor 1021, and it is transmitted to the microcontroller), the outdoor cold air can enter the heat exchange chamber 104, and through heat dissipation The device 11 performs heat exchange, and the energy absorbed by the cooling device 11 during the day is also diffused to achieve cooling and store cold energy. Among them, the control of the air volume of the second fan 1032 and the air volume of the third fan 1033 (these two fans adopt the adjustment control circuit, and the air volume is adjustable), can realize the temperature regulation of the indoor temperature and the heat exchange chamber. Control, the air speed at the air outlet is small, to ensure a constant indoor temperature, energy saving, strong practicability, and compact structure.

The difference between embodiment four and embodiment two and three is:

With reference to the embodiment structure of Fig. 6, it differs from the embodiment structure of Fig. 3 in that: a heat exchange chamber 104 is provided under the indoor, and the heat exchange chamber 104 is embedded in the pit 12, so that during the daytime At night and at night, the heat exchange chamber 104 can avoid being affected by the outdoor temperature, better ensure the effect of heat exchange, and ensure the energy storage and heat dissipation of the heat sink 11 and the functions of energy supply and heating, thereby ensuring a constant indoor temperature.

With reference to the embodiment structure of Fig. 7, it differs from the embodiment structure of Fig. 4 in that: a heat exchange chamber 104 is arranged under the indoor, and the heat exchange chamber 104 is embedded in the pit 12, so that during the daytime At night and at night, the heat exchange chamber 104 can avoid being affected by the outdoor temperature, better ensure the effect of heat exchange, and ensure the energy storage and heat dissipation of the heat sink 11 and the functions of energy supply and heating, thereby ensuring a constant indoor temperature. In order to prevent the heat (or cold) in the room from being exchanged with the outside through the air channel of the third fan and waste energy, an electrically controlled air channel plug made of heat insulating material can be installed in the channel of the third fan. The three blowers are not working and are all in a closed state. The electric control air duct plug can be a rotary structure or a sliding structure.

In the structure of the fourth embodiment, in order to achieve a better constant temperature control effect, the pit can be dug deeper.

Referring to Figure 8, part of the heat sink 11 in the above-mentioned embodiments 2 to 4 can adopt a hollow cavity structure with a built-in heat storage medium (such as water), which includes several interconnected metal bodies, which are square Strip-shaped, with a number of heat sinks 113 arranged at intervals on the left and right sides to dissipate heat through the heat sinks 113; the upper end of the metal body is provided with a tapered column 111, and the lower end is provided with a tapered hole 112, every two The metal bodies are connected up and down by inserting tapered columns 111 in the tapered holes 112, which can ensure the connection stability of the metal bodies. A through cavity 114 is also provided in the middle of the metal bodies, and the through cavity 114 can be used Heat storage media such as water are installed, so that when the indoor temperature is high (such as during the day in summer), the heat released from the room is absorbed by the heat sink 113 and stored in water; The heat stored in the water is dissipated, ensuring a constant indoor temperature, practical and energy efficient. The most important thing is that such metal bodies can be stacked together to play a supporting role. The heat exchange chamber placed under the room can become an important supporting structure for the indoor floor, which is easy to construct and install.

According to the structure of Fig. 4 and Fig. 7, the present invention also provides a constant temperature control method, which determines the temperature of the first fan, the second fan and the third fan by collecting the indoor temperature T1, the temperature T2 of the heat exchange chamber and the outdoor temperature T3 The air volume and the opening degree of the electric lift door;

When the temperature T2 of the heat exchange chamber and the outdoor temperature T3 are both higher than the high temperature control value or lower than the low temperature control value, the first fan, the second fan and the third fan, as well as the electric lifting door are turned off, and the air conditioner is started. Realize constant temperature control;

When the temperature T2 of the heat exchange chamber is lower than the high temperature control value and the outdoor temperature T3 is higher than the high temperature control value, the third fan and the electric lift door are closed, and the first fan and the second fan are at the same time, one for air intake and one for air output , the heat exchange chamber and the room form air convection, and the heat emitted by the equipment installed in the room is diffused by the flowing air to achieve constant temperature control;

When the outdoor temperature T3 is between the low value of temperature control and the high value of temperature control, and the temperature T2 of the heat exchange chamber is higher than the high value of temperature control, the first fan located at the bottom and close to the electric lift door is turned off, and the first fan located at the top is closed. The third fan enters the air, which is located below and farther than the electric lift door. The second fan blows out the air. When the electric lift door opens, the outdoor air passes through the third fan, the indoor, the second fan, the heat exchange chamber, and the electric lift door to form a heat dissipation channel. , the heat emitted by the equipment installed in the room is diffused by the flowing air to achieve constant temperature control;

When the outdoor temperature T3 and the temperature T2 of the heat exchange chamber are between the temperature control low value and the temperature control high value, the first fan located below and close to the electric lift door is turned off, the third fan located above blows air, and the third fan located below and The second fan farther than the electric lift door enters the air, the electric lift door opens and enters the wind, the outdoor air passes through the electric lift door, the heat exchange chamber, the second fan, the indoor and the third fan, forming a heat dissipation channel, and the equipment installed in the room The emitted heat is diffused by the flowing air to achieve constant temperature control.

In the above temperature control method, the low temperature control value is 3-8 degrees higher than the minimum allowable working temperature in the room (when it is in a low temperature state, the three fans are usually turned off, and the indoor temperature is raised by using the heat generated by the indoor equipment. ). The maximum temperature control value is 5-20 degrees lower than the maximum allowable working temperature in the room to prevent the temperature control from being unstable enough to cause the indoor temperature to exceed the temperature range it can withstand. Since the collection of the outdoor temperature T3 is the most important, the difference between it and the low temperature control value and the high temperature control value is also very important. Due to different environments, the best temperature control methods suitable for different environments are also different. Therefore, for the above temperature control method, use the microcontroller to analyze the historical temperature control parameters after a period of work, and obtain the curve of the stable process of the constant temperature control system. When the indoor temperature changes during the whole temperature control process, when the highest value of the indoor temperature is 5-10 degrees lower than the maximum allowable working temperature in the room, adjust the temperature control high value and increase its value. 1-4 degrees, until the maximum temperature control value is 3-5 degrees lower than the maximum allowable indoor operating temperature, or until the first fan, the second fan and/or the third fan are in the lowest power working state or stop. In this way, the temperature control steps are more reasonable and unnecessary energy consumption is reduced.

The method can be used for temperature control of communication base stations, and can also be used for weather detection stations, outposts and other places.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. A constant temperature control system for outdoor buildings, characterized in that it includes a constant temperature device for maintaining constant control of the indoor temperature and a cooling device for diffusing the heat released in the room; the cooling device is adjacent to the outside and fixed on the wall , the constant temperature device includes an air conditioner installed on the indoor wall, a microcontroller installed indoors, a temperature sensor for sensing the outdoor temperature, an electric lift door located inside the cooling device, and a fan fixed above the electric lift door; A heat exchange chamber is formed between the cooling device and the electric lift door; the temperature sensor is electrically connected to the microcontroller, and the air conditioner, the motor driving the electric lift door, and the fan are respectively electrically connected to the microcontroller; when the temperature sensor senses the outdoor When the temperature is high, the micro-controller drives the air conditioner to start working, and the indoor temperature is controlled, and the micro-controller drives the fan and the electric lift door to be closed; when the temperature sensor senses that the outdoor temperature is lower than the minimum set value, according to the electric lift The door opening position sensor and the temperature control command sent by the microcontroller control the electric lift door to open appropriately. The opening amount is determined by the temperature control command. At this time, the fan starts to cool the indoor air. Convection with the air in the heat exchange chamber to ensure a constant indoor temperature; when the electric lift door is fully opened and the power of the fan is turned on to the maximum, when the indoor temperature still rises to the highest set value, the air conditioner starts to work. 2. The outdoor building constant temperature control system according to claim 1, characterized in that both the wall and the electric lifting door are made of heat insulating materials. 3. The constant temperature control system for outdoor buildings according to claim 1, characterized in that the heat dissipation device is a closed metal plate structure with two ends connected to the wall. 4. A constant temperature control system for outdoor buildings, characterized in that it includes a constant temperature device for maintaining constant control of the indoor temperature and a cooling device for diffusing the heat released in the room; a heat exchange chamber is provided below the room, and the indoor There is an insulating partition between the heat exchange chamber; the constant temperature device includes an electric lift door located at the outlet of the heat exchange chamber, a first fan located inside the electric lift door, and a second fan located at the inner end of the heat exchange chamber to dissipate heat. The device is installed inside the heat exchange chamber and under the insulation partition; when the temperature sensor senses that the outdoor temperature is higher than the set value, the micro-controller controls the electric lift door to close, the second fan enters the air, and the first The fan blows out the air, making the indoor air and the heat exchange chamber form counterclockwise convection, speeding up the uniformity of the indoor temperature, and using the heat dissipation device to absorb and dissipate heat, and to control the indoor temperature; when the temperature sensor senses that the outdoor temperature is lower than When setting the value, the micro-controller controls the opening degree of the electric lift door, the speed of the first fan’s air outlet, and the speed of the second fan’s air intake, so that the outdoor heat can enter the heat exchange chamber, and the heat is carried out through the heat dissipation device. exchange, and the energy absorbed by the cooling device is dissipated at the same time to ensure a constant indoor temperature. 5. The outdoor building constant temperature control system according to claim 4, characterized in that said constant temperature device further comprises a third fan located above the electric lifting door. 6. The outdoor building constant temperature control system according to claim 4 or 5, characterized in that the wall is fixed in a pit, and the heat exchange chamber is embedded in the pit. 7. The constant temperature control system for outdoor buildings according to claim 6, characterized in that the heat dissipation device adopts a hollow cavity structure with a built-in heat storage medium, which includes several interconnected metal bodies, the metal bodies are in the form of square strips Shaped, there are a number of cooling fins arranged at intervals on the left and right sides, and the heat is dissipated through the cooling fins. 8. The constant temperature control system for outdoor buildings according to claim 7, characterized in that the upper end of the metal body is provided with a tapered column, the lower end is provided with a tapered hole, and the middle part is also provided with a through cavity. The space is connected up and down by inserting a tapered column into the tapered hole. 9. The constant temperature control method of the outdoor building constant temperature control system according to claim 4, which determines the temperature of the first fan, the second fan and the third fan by collecting the indoor temperature T1, the heat exchange chamber temperature T2 and the outdoor temperature T3. Air volume, and the opening degree of the electric lift door; When the temperature T2 of the heat exchange chamber and the outdoor temperature T3 are both higher than the high temperature control value, the first fan, the second fan and the third fan, as well as the electric lifting door are turned off, and the air conditioner is started to realize constant temperature control; When the temperature T2 of the heat exchange chamber is lower than the high temperature control value and the outdoor temperature T3 is higher than the high temperature control value, the third fan and the electric lift door are closed, and the first fan and the second fan are at the same time, one for air intake and one for air output , the heat exchange chamber and the room form air convection, and the heat emitted by the equipment installed in the room is diffused by the flowing air to achieve constant temperature control; When the outdoor temperature T3 is between the low value of temperature control and the high value of temperature control, and the temperature T2 of the heat exchange chamber is higher than the high value of temperature control, the first fan located at the bottom and close to the electric lift door is turned off, and the first fan located at the top is closed. The third fan enters the air, which is located below and farther than the electric lift door. The second fan blows out the air. When the electric lift door opens, the outdoor air passes through the third fan, the indoor, the second fan, the heat exchange chamber, and the electric lift door to form a heat dissipation channel. , the heat emitted by the equipment installed in the room is diffused by the flowing air to achieve constant temperature control; When the outdoor temperature T3 and the temperature T2 of the heat exchange chamber are between the temperature control low value and the temperature control high value, the first fan located below and close to the electric lift door is turned off, the third fan located above blows air, and the third fan located below and The second fan farther than the electric lift door enters the air, the electric lift door opens and enters the wind, the outdoor air passes through the electric lift door, the heat exchange chamber, the second fan, the indoor and the third fan, forming a heat dissipation channel, and the equipment installed in the room The emitted heat is diffused by the flowing air to achieve constant temperature control. 10. An energy-saving communication base station, characterized in that it comprises the outdoor building constant temperature control system according to claim 1 or 4, and said indoors are equipped with communication equipment.