Fan cooling device, modular machine and air conditioner thereof

Abstract

The present invention provides a fan cooling device, a modular machine and an air conditioner thereof, which relates to the technical field of air conditioners and solves the technical problem in the prior art that the condenser of the modular machine is severely frosted, resulting in excessive temperature rise of the fan. The device includes a mounting portion, a telescopic support portion and a blocking portion, wherein the fan cooling device is mounted at the vent of the middle baffle in the modular machine through the mounting portion, the telescopic support portion is arranged on the mounting portion and connected to the blocking portion, the telescopic support portion can drive the blocking portion to move to the position of closing the vent and opening the vent, and when the blocking portion is in the position of opening the vent, the airflow can enter the upper space above the middle baffle in the modular machine through the vent to reduce the temperature of the fan in the upper space. The present invention is used to reduce the temperature rise of the fan and increase the service life of the fan under severe frosting conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a fan cooling device, a module machine and an air conditioner thereof. Background Art

[0002] When the modular unit is running in winter for heating, frost is easy to appear on the surface of the condenser due to the low ambient temperature and high air humidity. As the frost grows and accumulates, the resistance of air flowing through the condenser increases, the flow rate decreases, and the heat transfer resistance increases, resulting in too low static pressure inside the unit, too much fan load, and too much motor current, causing the fan temperature to rise too high, so that the heating performance of the unit is attenuated, and in severe cases, the unit will shut down. Summary of the invention

[0003] The purpose of the present invention is to provide a fan cooling device, a modular machine and an air conditioner thereof, which solves the technical problem in the prior art that the fan temperature rise is too high due to severe frost on the condenser of the modular machine. The preferred technical solutions among the many technical solutions provided by the present invention can produce many technical effects as described below.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The fan cooling device provided by the present invention comprises a mounting part, a telescopic support part and a sealing part, wherein the fan cooling device is installed at the vent of the middle baffle in the module machine through the mounting part, the telescopic support part is arranged on the mounting part and is connected to the sealing part, the telescopic support part can drive the sealing part to move to the position of closing the vent and opening the vent, and when the sealing part is in the position of opening the vent, the airflow can enter the upper space above the middle baffle in the module machine through the vent to reduce the temperature of the fan in the upper space.

[0006] As a further improvement of the present invention, the mounting portion includes a baffle connecting portion and a reinforcing support portion, the reinforcing support portion is connected to the baffle connecting portion and the reinforcing support portion forms a detachable connection with the intermediate baffle through the baffle connecting portion, a through hole for airflow to pass through is formed on the reinforcing support portion, and the telescopic support portion is arranged on the reinforcing support portion.

[0007] As a further improvement of the present invention, the telescopic support portion includes a driving portion and a support rod, the driving portion is arranged on the reinforced support portion, the driving portion is connected to the blocking portion through the support rod and can drive the blocking portion to move to a position of closing the vent and opening the vent through the support rod.

[0008] As a further improvement of the present invention, the support rod member includes a guide rod and a connecting rod, the reinforced support portion is provided with a guide hole for installing the guide rod, the guide rod is sleeved on the periphery of the connecting rod, the output end of the driving portion is connected to the connecting rod and can drive the connecting rod to move in the guide rod along the axial direction of the support rod member.

[0009] As a further improvement of the present invention, the baffle connecting portion includes a connecting body and an installation positioning portion, wherein the installation positioning portion is an annular structure, the reinforcing support portion is fixedly arranged in the installation positioning portion, and the connecting body is fixedly arranged on the surrounding side of the installation positioning portion. After the fan cooling device is installed in place, the installation positioning portion is embedded in the vent, and the fan cooling device can form a detachable connection with the intermediate baffle through the connecting body.

[0010] As a further improvement of the present invention, the connecting body is detachably connected to the upper surface of the intermediate baffle by bolts, the lower surface of the installation positioning portion is flush with the lower surface of the intermediate baffle, and the blocking portion in the open vent position is located below the intermediate baffle.

[0011] As a further improvement of the present invention, the reinforcing support portion includes three connecting rods, the installation positioning portion is respectively connected to one end of the three connecting rods, and the other ends of the three connecting rods intersect at the center of the installation positioning portion, and a through hole for airflow to pass through is formed between two adjacent connecting rods.

[0012] As a further improvement of the present invention, the three connecting rods are evenly arranged along the circumference of the installation positioning portion, and the supporting rod is vertically arranged and located at the center of the installation positioning portion.

[0013] As a further improvement of the present invention, the blocking portion is a blocking plate, and the outer diameter of the blocking plate is not less than the inner diameter of the vent.

[0014] As a further improvement of the present invention, the fan cooling device also includes an internal pressure sensor and an external pressure sensor. The internal pressure sensor is installed on the mounting portion or on the inner wall of the upper shell of the module machine to detect the pressure in the upper space of the module machine, and the external pressure sensor is arranged on the outer surface of the shell of the module machine to detect the pressure outside the module machine.

[0015] As a further improvement of the present invention, the fan cooling device also includes a PLC controller, and the internal pressure sensor, the external pressure sensor and the driving unit are all connected to the PLC controller.

[0016] A modular machine comprises a shell, a fan and a fan cooling device, wherein an intermediate baffle is arranged inside the shell, and the intermediate baffle divides the internal space of the shell into an upper space located above the intermediate baffle and a lower space located below the intermediate baffle, the fan is installed in the upper space, and at least one ventilation opening is opened on the intermediate baffle, and the fan cooling device is installed at the ventilation opening.

[0017] As a further improvement of the present invention, the intermediate baffle is provided with two vents spaced apart from each other, and a fan cooling device is installed in each vent.

[0018] A heating device comprises the modular machine.

[0019] As a further improvement of the present invention, the heating equipment is an air conditioner.

[0020] The fan cooling device provided by the present invention is installed at the vent of the middle baffle in the module machine through the installation part, and drives the blocking part to move to the position of closing the vent and opening the vent through the telescopic support part. The device mainly adjusts the opening and closing state of the vent on the middle baffle through the internal and external pressure difference of the module machine. When the module machine is in a normal working state, the condenser is ventilated, and the pressure difference between the inside and outside of the unit is within the setting range, the fan cooling device is in a closed state and the vent is not opened; when the condenser of the module machine is blocked due to frost, the static pressure inside the unit becomes smaller, the fan load becomes larger, and the motor temperature rises rapidly, at this time, when the pressure difference between the inside and outside of the unit exceeds the specified value of the sensor, the device opens the vent, and the airflow can enter the upper space above the middle baffle in the module machine through the vent to reduce the temperature of the fan in the upper space, so that the pressure difference between the inside and outside of the module machine is reduced, and the temperature of the fan is slowly cooled down due to ventilation to reach a stable state, thereby protecting the fan and ensuring the stability of the normal operation of the unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 is a structural schematic diagram of a fan cooling device provided by an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 A magnified view of part A;

[0024] Figure 3It is a schematic diagram of the coordination structure of the fan cooling device and the intermediate baffle provided in an embodiment of the present invention;

[0025] Figure 4 This is the first structural schematic diagram of a modular machine (without a fan cooling device installed) provided in an embodiment of the present invention;

[0026] Figure 5 It is a second structural schematic diagram of a module machine (installed with a fan cooling device) provided in an embodiment of the present invention;

[0027] Figure 6 It is the third structural schematic diagram of the module machine (installed with a fan cooling device) provided in an embodiment of the present invention.

[0028] Figure numerals: 1. Installation part; 11. Baffle connecting part; 111. Connecting body; 112. Installation positioning part; 12. Reinforced support part; 121. Through hole; 122. Connecting support rod; 2. Telescopic support part; 21. Driving part; 22. Support rod; 221. Guide rod; 222. Connecting rod; 3. Sealing part; 4. Intermediate baffle; 5. Vent; 6. Upper space; 7. Lower space; 8. Shell. DETAILED DESCRIPTION

[0029] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0030] See also Figure 1-Figure 6 The present invention provides a fan cooling device, including a mounting portion 1, a telescopic support portion 2 and a blocking portion 3, wherein the fan cooling device is installed at the vent 5 of the middle baffle 4 in the module machine through the mounting portion 1, the telescopic support portion 2 is arranged on the mounting portion 1 and is connected to the blocking portion 3, the telescopic support portion 2 can drive the blocking portion 3 to move to the position of closing the vent 5 and opening the vent 5, when the blocking portion 3 is in the position of opening the vent 5, the airflow can enter the upper space 6 above the middle baffle 4 in the module machine through the vent 5 to reduce the temperature of the fan in the upper space 6.

[0031] The fan cooling device mainly adjusts the opening and closing state of the vent 5 on the middle baffle 4 through the internal and external pressure difference of the module machine. When the module machine is in normal working state, the condenser is ventilated, and the internal and external pressure difference of the unit is within the set range, the fan cooling device is in a closed state and the vent 5 is not opened; when the condenser of the module machine is blocked due to frost, the static pressure inside the unit becomes smaller, the fan load becomes larger, and the motor temperature rises rapidly, when the internal and external pressure difference of the unit exceeds the specified value of the sensor, the device opens the vent 5, and the air flow can enter the upper space 6 above the middle baffle 4 in the module machine through the vent 5 to reduce the temperature of the fan in the upper space 6, so that the internal and external pressure difference of the module machine is reduced, and the fan temperature slowly cools down due to ventilation to reach a stable state, thereby protecting the fan and ensuring the stability of normal operation of the unit.

[0032] Specifically, Figure 2 As shown, the mounting portion 1 includes a baffle connecting portion 11 and a reinforcing support portion 12. The reinforcing support portion 12 is connected to the baffle connecting portion 11 and the reinforcing support portion 12 forms a detachable connection with the intermediate baffle 4 through the baffle connecting portion 11. A through hole 121 is formed on the reinforcing support portion 12 for air flow to pass through. It should be noted that the reinforcing support portion 12 is located at the vent 5, so the through hole 121 on the reinforcing support portion 12 forms a part of the vent 5.

[0033] The telescopic support part 2 is arranged on the reinforcing support part 12. Specifically, the telescopic support part 2 includes a driving part 21 and a supporting rod 22. The driving part 21 is arranged on the reinforcing support part 12. The driving part 21 is connected to the blocking part 3 through the supporting rod 22 and can drive the blocking part 3 to move to the position of closing the vent 5 and opening the vent 5 through the supporting rod 22. The driving part 21 in this embodiment can be a telescopic cylinder.

[0034] Among them, see Figure 1 The support rod 22 in this embodiment includes a guide rod 221 and a connecting rod 222. A guide hole for installing the guide rod 221 is opened on the reinforcing support part 12. The guide rod 221 is sleeved on the periphery of the connecting rod 222. The output end of the driving part 21 is connected to the connecting rod 222 and can drive the connecting rod 222 to move in the guide rod 221 along the axial direction of the support rod 22. The connecting rod 222 is driven to move by the extension and contraction of the telescopic cylinder. The guide rod 221 provides a guiding effect for the movement of the connecting rod 222, so that the movement of the connecting rod 222 is more stable.

[0035] As an optional implementation method of the embodiment of the present invention, Figure 1 and Figure 2The baffle connecting portion 11 includes a connecting body 111 and an installation positioning portion 112, wherein the installation positioning portion 112 is a hollow annular structure, the reinforcing support portion 12 is fixedly arranged in the installation positioning portion 112, and the connecting body 111 is fixedly arranged on the inner wall of the peripheral side of the installation positioning portion 112. When the fan cooling device is installed, the installation positioning portion 112 is embedded in the vent 5 to prevent dislocation and inaccurate positioning when installing the fan cooling device, which is more convenient for the installation of the fan cooling device. The fan cooling device can form a detachable connection with the intermediate baffle 4 through the connecting body 111.

[0036] Furthermore, the connecting body 111 is detachably connected to the upper surface of the middle baffle 4 by bolts, so as to facilitate the replacement of the fan cooling device. The blocking portion 3 in the position of opening the vent 5 is located below the middle baffle 4, that is, the driving portion 21 can open the vent 5 when driving the blocking portion 3 to move from top to bottom through the supporting rod 22. When the blocking portion 3 opens the vent 5, or when the blocking portion 3 opens the through hole 121 on the reinforcing support portion 12, the airflow can smoothly pass through the vent 5 to the upper space 6 of the module machine to ventilate and cool the fan. However, if the blocking portion 3 in the position of opening the vent 5 is located above the middle baffle 4, when the airflow flows into the upper space through the vent 5, it will be subject to the resistance of the blocking portion 3, and the cooling effect on the fan will be worse.

[0037] The lower surface of the installation positioning portion 112 is flush with the lower surface of the middle baffle 4. The sealing portion 3 is a sealing plate. The outer diameter of the sealing plate is not less than the inner diameter of the vent 5. The sealing portion 3 can better cooperate with the installation positioning portion 112 at the vent 5 to cover the through hole 121 on the reinforced support portion 12 so that the vent 5 is closed.

[0038] As an optional implementation of the embodiment of the present invention, the reinforcing support portion 12 includes three connecting rods 122, the mounting and positioning portion 112 is respectively connected to one end of the three connecting rods 122, and the other ends of the three connecting rods 122 intersect at the center of the mounting and positioning portion 112, and a guide hole is formed at the connection of the three connecting rods 122, and a through hole 121 for airflow to pass through is formed between two adjacent connecting rods 122, such as Figure 1 As shown, the number of the through holes 121 is three, and the three through holes 121 constitute a part of the ventilation opening 5 .

[0039] Furthermore, the three connecting rods 122 are evenly arranged along the circumference of the mounting positioning portion 112, so that the air intake is more uniform. In addition, the support rod 22 in this embodiment is vertically arranged and located at the center of the mounting positioning portion 112, so that the fan cooling device is more stable as a whole when in operation.

[0040] Taking into account that the fan cooling device provided by the present invention mainly adjusts the opening and closing state of the vent 5 on the intermediate baffle 4 through the internal and external pressure difference of the module machine, an internal pressure sensor and an external pressure sensor are also provided, wherein the internal pressure sensor is installed on the mounting portion 1 or on the inner wall of the upper shell 8 of the module machine to detect the pressure of the upper space 6 in the module machine, and the external pressure sensor can be arranged on the outer surface of the shell 8 of the module machine or outside the module machine to detect the pressure outside the module machine.

[0041] In addition, the fan cooling device also includes a PLC controller, and the internal pressure sensor, the external pressure sensor and the drive unit 21 are all connected to the PLC controller. When the module machine is in normal working condition, the condenser is ventilated, and the pressure difference between the inside and outside of the unit is within the set range, the fan cooling device does not work, and its blocking part 3 is in the position of closing the vent 5; when the condenser of the module machine is blocked due to frost, the static pressure inside the unit becomes smaller, the fan load becomes larger, and the motor temperature rises rapidly, at this time, when the pressure difference between the inside and outside of the unit detected by the internal pressure sensor and the external pressure sensor (referring to the difference between the pressure in the upper space 6 of the module machine and the external pressure) exceeds the specified value, the fan cooling device will be activated and the drive will be controlled by the PLC controller. The driving part 21 moves to drive the blocking part 3 to open the vent 5, and the airflow can enter the upper space 6 above the middle baffle 4 in the module through the vent 5, so that the pressure difference between the inside and outside of the module gradually decreases, the fan load gradually tends to be flat, and the fan temperature slowly cools down due to ventilation to reach a stable state, thereby protecting the fan and making the module work normally. When the pressure difference between the inside and outside of the module detected by the internal sensor and the external sensor returns to the specified value, the PLC controller controls the driving part 21 to drive the blocking part 3 to move upward, close the vent 5, and the module works normally. The fan cooling device provided by the present invention greatly improves the service life of the fan under severe frosting conditions, and at the same time ensures the stability of the normal operation of the unit.

[0042] The fan cooling device does not operate under normal operating conditions of the module machine, that is, the sealing part 3 is in a state of closing the vent 5, which will not affect the overall performance of the module machine. At the same time, under severe frosting conditions, the fan cooling device operates to adjust the pressure difference between the inside and outside of the module machine, and provide ventilation and cooling for the fan, so that the fan will not report overcurrent protection due to excessive temperature during the frosting process, affecting the normal operation of the unit.

[0043] Combination Figure 3 , Figure 5 and Figure 6The present invention also provides a modular machine, including a housing 8, a fan and the above-mentioned fan cooling device. An intermediate baffle 4 is arranged inside the housing 8. The intermediate baffle 4 divides the internal space of the housing 8 into an upper space 6 located above the intermediate baffle 4 and a lower space 7 located below the intermediate baffle 4. The fan is installed in the upper space 6. At least one ventilation hole 5 is opened on the intermediate baffle 4. The fan cooling device is installed at the ventilation hole 5. For further information, see Figure 4 The middle baffle plate 4 is provided with two ventilating openings 5 ​​arranged at intervals, and a fan cooling device is installed in each ventilating opening 5 .

[0044] Since the fan cooling device can sense the pressure difference between the inside and outside of the module machine through the internal pressure sensor and the external pressure sensor, thereby adjusting the switch vent 5, the pressure difference between the inside and outside of the module machine is reduced, the load of the fan is reduced, the temperature rise of the fan is reduced, and the service life of the fan is increased. It can effectively ensure the normal and stable operation of the module machine equipped with the fan cooling device of the present invention, reduce energy consumption, and increase the working efficiency of the whole machine.

[0045] In addition, the present invention also provides a heating device, including the above-mentioned module machine. In one embodiment, the heating device is an air conditioner.

[0046] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A fan cooling device, characterized in that: It includes a mounting portion, a telescopic support portion and a blocking portion, wherein: The fan cooling device is installed at the vent of the middle baffle in the module machine through the mounting part, the telescopic support part is arranged on the mounting part and connected with the blocking part, the telescopic support part can drive the blocking part to move to the position of closing the vent and opening the vent, the telescopic support part includes a driving part, the fan cooling device also includes a PLC controller, and the internal pressure sensor, the external pressure sensor and the driving part are all connected with the PLC controller; The fan cooling device adjusts the opening and closing state of the vent through the internal and external pressure difference of the module machine. When the module machine is in normal working state, the condenser is ventilated, and the internal and external pressure difference of the unit is within the set range. The fan cooling device is in a closed state, and the vent is not opened. When the condenser of the module machine is blocked due to frost, the static pressure inside the unit becomes smaller, and the fan cooling device opens the vent. When the sealing part is in the position of opening the vent, the airflow can pass through the vent into the upper space above the middle baffle in the module machine to reduce the temperature of the fan in the upper space.

2. The fan cooling device according to claim 1, characterized in that: The mounting portion includes a baffle connecting portion and a reinforcing support portion, wherein the reinforcing support portion is connected to the baffle connecting portion and the reinforcing support portion forms a detachable connection with the intermediate baffle through the baffle connecting portion, a through hole for airflow to pass through is formed on the reinforcing support portion, and the telescopic support portion is arranged on the reinforcing support portion.

3. The fan cooling device according to claim 2, characterized in that: The telescopic support portion includes a support rod, and the driving portion is arranged on the reinforced support portion. The driving portion is connected to the blocking portion through the support rod and can drive the blocking portion to move to a position of closing the vent and opening the vent through the support rod.

4. The fan cooling device according to claim 3, characterized in that: The support rod comprises a guide rod and a connecting rod. A guide hole for installing the guide rod is opened on the reinforcing support portion. The guide rod is sleeved on the periphery of the connecting rod. The output end of the driving portion is connected to the connecting rod and can drive the connecting rod to move in the guide rod along the axial direction of the support rod.

5. The fan cooling device according to claim 3, characterized in that: The baffle connecting portion includes a connecting body and an installation positioning portion, wherein the installation positioning portion is an annular structure, the reinforcing support portion is fixedly arranged in the installation positioning portion, and the connecting body is fixedly arranged on the surrounding side of the installation positioning portion. After the fan cooling device is installed in place, the installation positioning portion is embedded in the vent, and the fan cooling device can form a detachable connection with the intermediate baffle through the connecting body.

6. The fan cooling device according to claim 5, characterized in that: The connecting body is detachably connected to the upper surface of the intermediate baffle by bolts, the lower surface of the installation positioning portion is flush with the lower surface of the intermediate baffle, and the blocking portion in the open vent position is located below the intermediate baffle.

7. The fan cooling device according to claim 5, characterized in that: The reinforcing support portion includes three connecting rods, the installation positioning portion is connected to one end of the three connecting rods respectively, and the other ends of the three connecting rods intersect at the center of the installation positioning portion, and a through hole for airflow to pass through is formed between two adjacent connecting rods.

8. The fan cooling device according to claim 7, characterized in that: The three connecting rods are evenly arranged along the circumference of the installation positioning portion, and the supporting rod is vertically arranged and located at the center of the installation positioning portion.

9. The fan cooling device according to any one of claims 1 to 8, characterized in that: The blocking portion is a blocking plate, and the outer diameter of the blocking plate is not less than the inner diameter of the vent.

10. The fan cooling device according to claim 3, characterized in that: The fan cooling device also includes an internal pressure sensor and an external pressure sensor. The internal pressure sensor is installed on the mounting portion or on the inner wall of the upper shell of the module machine to detect the pressure in the upper space of the module machine. The external pressure sensor is arranged on the outer surface of the shell of the module machine to detect the pressure outside the module machine.

11. A modular machine, characterized in that: It comprises a shell, a fan and the fan cooling device according to any one of claims 1 to 10, wherein an intermediate baffle is arranged in the shell, and the intermediate baffle divides the internal space of the shell into an upper space located above the intermediate baffle and a lower space located below the intermediate baffle, the fan is installed in the upper space, and at least one ventilation opening is opened on the intermediate baffle, and the fan cooling device is installed at the ventilation opening.

12. The modular machine according to claim 11, characterized in that: The middle baffle is provided with two vents spaced apart from each other, and each vent is equipped with a fan cooling device.

13. A heating device, characterized in that: Including the modular machine described in claim 11 or 12.

14. The heating device according to claim 13, characterized in that: The heating device is an air conditioner.

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