Integrated direct-current air conditioner in cabinet

Abstract

The utility model discloses an in-cabinet integrated direct current air conditioner which comprises an air conditioning box and a partition plate, the partition plate divides a cavity in the air conditioning box into an inner circulation cavity and an outer circulation cavity in the longitudinal direction, and the inner circulation cavity is provided with an evaporator and an inner circulation fan; the outer circulation chamber is provided with a compressor, a condenser and an outer circulation fan; an air supply outlet and an air return inlet corresponding to the internal circulation fan are further formed in the positions, located on the two sides of the evaporator, of the air conditioner box, and the air supply outlet and the air return inlet directly face the space in the cabinet. Through the integrated design of the air conditioner, the cavity in the air conditioner box is divided by the partition plate in the longitudinal direction, and the heat exchange efficiency of the evaporator and the condenser is optimal by adjusting the mounting positions of the evaporator and the condenser; the structure saves the installation space; and the integrated air conditioner adopts direct current power supply, so that the air conditioning system is more efficient and more stable in operation and lower in noise, and the service life of air conditioning equipment is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration, in particular to an integrated direct-current air conditioner inside a cabinet. Background Art

[0002] In the existing cabinet equipment, it is usually necessary to independently install air-conditioning equipment to adjust the temperature inside the cabinet. However, this independent installation method not only occupies extra space, but also the installation and maintenance processes are relatively complex. This to a certain extent affects the indoor aesthetics and brings inconvenience to users. In addition, traditional air-conditioning equipment usually uses alternating current power supply, and the energy utilization efficiency is relatively low. Therefore, an integrated direct-current air conditioner inside a cabinet is needed to improve this problem. Content of the Utility Model

[0003] To solve the above technical problems, the utility model provides an integrated direct-current air conditioner inside a cabinet. By integrating the air conditioner and placing it in the upper part of the cabinet, space is saved; moreover, the air conditioner is powered by a direct-current power supply, which has energy conservation, environmental protection and high efficiency.

[0004] The technical solution of the utility model is: it includes an air-conditioning box and a partition. The partition longitudinally divides the cavity inside the air-conditioning box into an internal circulation chamber and an external circulation chamber. The internal circulation chamber is provided with an evaporator and an internal circulation fan; the external circulation chamber is provided with a compressor, a condenser and an external circulation fan; on both sides of the evaporator on the air-conditioning box, there are also air supply outlets and return air outlets corresponding to the internal circulation fan, and the air supply outlets and the return air outlets face the space inside the cabinet.

[0005] A further technical solution of it is: it also includes a power supply module, the power supply module is a direct-current power supply, and the compressor is powered by the direct-current power supply.

[0006] A further technical solution of it is: the evaporator is inclined and arranged inside the internal circulation chamber; and the air outlet of the internal circulation fan faces the evaporator.

[0007] A further technical solution of it is: a water collecting box for receiving condensed water is arranged at the bottom of the evaporator, and the water collecting box discharges the condensed water through a water pipe.

[0008] A further technical solution of it is: a wind collecting cover is arranged between the air suction port of the internal circulation fan and the return air outlet, and the air inside the cabinet flows from the return air outlet to the air suction port of the internal circulation fan under the effective guidance of the wind collecting cover.

[0009] A further technical solution of it is: it is defined that the internal circulation fan corresponds to the lower part of the air-conditioning box. Correspondingly, an air exhaust port and an air inlet corresponding to the external circulation fan are arranged on the upper part of the air-conditioning box, and the air exhaust port and the air inlet are located on both sides of the condenser in the longitudinal direction.

[0010] A further technical solution thereof is that: the condenser is in the shape of a serpentine coil and is horizontally inclined and arranged in the outer circulation chamber, and the air flow extracted by the outer circulation fan needs to pass through the condenser for heat exchange before being discharged from the air outlet.

[0011] A further technical solution thereof is that: it further includes a control panel, and the control panel controls the operation and temperature adjustment of the air conditioner through a circuit and sensors.

[0012] The beneficial technical effects of the present utility model are as follows: the cavity inside the air conditioner box is longitudinally separated by a partition board, and by adjusting the installation positions of the evaporator and the condenser, the heat exchange efficiency of the evaporator and the condenser reaches the best; through the integrated design of the air conditioner, the installation space is saved; and the integrated air conditioner is powered by direct current to ensure that the air conditioner system operates more efficiently, more stably, with lower noise, and longer service life of the air conditioner equipment. Description of the Drawings

[0013] Figure 1 is a schematic diagram of the overall external structure of the present utility model;

[0014] Figure 2 is a schematic diagram of the overall internal structure of the present utility model;

[0015] Figure 3 is a schematic diagram of the internal circulation air duct and the external circulation air duct of the present utility model;

[0016] Wherein: 1. Air conditioner box; 11. Air return opening; 12. Air inlet; 13. Air supply opening; 14. Air outlet; 2. Partition board; 3. Evaporator; 4. Internal circulation fan; 5. Compressor; 6. Condenser; 7. External circulation fan; 8. Water collection box; 9. Air collection hood. Detailed Embodiments

[0017] In order to be able to more clearly understand the technical means of the present utility model and to be implemented in accordance with the content of the specification, the following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model but are not used to limit the scope of the present utility model.

[0018] As Figures 1 to 2 shown, a direct current air conditioner inside a cabinet includes an air conditioner main body, a power module, and a control module. The air conditioner main body includes an air conditioner box 1 and a partition board 2. The partition board 2 divides the cavity inside the air conditioner box 1 into an internal circulation chamber and an external circulation chamber. The internal circulation chamber is provided with an evaporator 3 and an internal circulation fan 4; the external circulation chamber is provided with a compressor 5, a condenser 6, and an external circulation fan 7.

[0019] In this embodiment, the partition 2 is arranged along the length direction of the air conditioner box 1. Under the refrigeration condition, the partition 2 forms a cold wall, separating the outer circulation chamber where the condenser 6 is located from the inner circulation chamber where the evaporator 3 is located, avoiding the heat transfer from the outer circulation chamber to the inner circulation chamber, and also preventing the outside heat from entering the inner circulation chamber, reducing the cold loss in the inner circulation chamber, and thus improving the efficiency of the whole machine.

[0020] The inner circulation fan 4 is used to extract the air in a fixed space and conduct air duct inner circulation in the inner circulation chamber, and the outer circulation fan 7 is used to extract the outside air and conduct air duct outer circulation in the outer circulation chamber; air return openings 11 and air inlet openings 12 are respectively provided on the air conditioner box 1 corresponding to the inner circulation fan 4 and the outer circulation fan 7; in this embodiment, both the inner circulation fan 4 and the outer circulation fan 7 are cross-flow fans; the cross-flow fans are driven to rotate by a DC fan.

[0021] It is defined that the inner circulation fan 4 corresponds to the lower part of the air conditioner box 1, and an air supply opening 13 is also provided at the lower part of the air conditioner box 1. The air supply opening 13 and the air return opening 11 are located on both sides of the lower part of the air conditioner box 1 in the length direction of the air conditioner box 1. The evaporator 3 is arranged in the inner circulation chamber between the air return opening 11 and the air supply opening 13, and the air outlet of the inner circulation fan 4 faces the evaporator 3 directly; the air return opening 11, the inner circulation chamber, and the air supply opening 13 form an inner circulation air duct for circulating the air in the fixed space; under the refrigeration condition, the air flow sucked by the inner circulation fan 4 transfers the cold generated by the evaporator 3 to the air supply opening 13 after convective heat exchange with the evaporator 3.

[0022] Furthermore, the evaporator 3 is a serpentine coil formed by coiling pipes. In order to increase the contact area between the evaporator 3 and the air flow as much as possible to achieve the best heat exchange effect, the evaporator 3 is inclined in the inner circulation chamber, so that the coil has a larger contact surface with the air flow sucked by the inner circulation fan 4, and the air flow flows out from the air supply opening 13 after fully exchanging heat with the coil, ensuring the heat exchange efficiency.

[0023] In this embodiment, the DC air conditioner is placed at the upper position inside the cabinet, then the inner circulation fan 4 is used to extract the air inside the cabinet and conduct air duct inner circulation in the inner circulation chamber. To prevent the condensed water condensed on the evaporator 3 from dripping into the cabinet, a water collecting box 8 is arranged at the bottom of the evaporator 3. The top surface of the water collecting box 8 is open for receiving the condensed water on the evaporator 3, and the water in the water collecting box 8 is discharged outside the cabinet through a water pipe.

[0024] Furthermore, the evaporator 3 is arranged above the water collecting box 8. To cooperate with the position of the evaporator 3, an air collecting hood 9 is provided between the air suction opening of the inner circulation fan 4 and the air return opening 11. The air inside the cabinet flows from the air return opening 11 to the inner circulation chamber for air duct inner circulation under the effective guidance of the air collecting hood 9, ensuring the efficiency of the inner circulation fan 4.

[0025] In this embodiment, the air inlet 12 is arranged on the upper surface of the air conditioner box 1. The air suction port of the external circulation fan 7 is arranged close to the air inlet 12 to facilitate the extraction of external air. The upper surface of the air conditioner box 1 is also provided with an air outlet 14. The air outlet 14 and the air inlet 12 are located on both sides of the upper surface of the air conditioner box 1 in the length direction of the air conditioner box 1. The condenser 6 is located between the air inlet 12 and the air outlet 14, and is in the shape of a serpentine coil and is horizontally inclined and arranged in the external circulation chamber.

[0026] The air inlet 12, the external circulation chamber, and the air outlet 14 form an external circulation air duct to cooperate with the external circulation fan 7 to introduce external air and take away the heat released by the condenser 6.

[0027] The compressor 5 is arranged on the side of the condenser 6 close to the air outlet 14 to prevent the external circulation air flow from passing through the compressor 5 first and then through the condenser 6, which may affect the heat dissipation effect of the condenser 6.

[0028] Furthermore, in order to improve the heat dissipation effect of the condenser 6, the condenser 6 forms an isolation layer of the external circulation chamber, so that all the external circulation air flow passes through the condenser 6 for heat exchange before being discharged from the air outlet 14, avoiding the path of the external circulation air flow directly flowing from the air inlet 12 to the air outlet 14.

[0029] The compressor 5, the condenser 6, and the evaporator 3 are sequentially connected by pipes to form a closed refrigeration system, and the pipes between the condenser 6 and the evaporator 3 and the pipes between the evaporator 3 and the compressor 5 all pass through the partition 2.

[0030] The refrigeration system is filled with refrigerant. Under refrigeration conditions, the refrigerant is adiabatically compressed by the compressor 5 into a superheated steam at high temperature and high pressure, and then is pressed into the condenser 6 for constant-pressure cooling and heat release, and then is cooled into a subcooled liquid refrigerant. The liquid refrigerant is adiabatically throttled by the expansion valve on the pipe into a low-pressure liquid refrigerant, evaporates in the evaporator 3 and absorbs heat from the air to achieve the purpose of refrigeration. The low-pressure refrigerant steam flowing out of the evaporator 3 flows back to the compressor 5 through the pipe to complete the cycle.

[0031] This structure is horizontally placed at the upper part inside the cabinet. The cabinet has a storage space for placing items or for other purposes. The air conditioner is integrated, so that the air conditioner equipment is no longer independent of the cabinet, effectively utilizing the space of the cabinet, saving indoor space, and at the same time, the integrated design is also convenient for installation and maintenance; it also improves the indoor aesthetics and has strong practicability.

[0032] The power supply module is a DC power supply, providing stable DC power supply for the compressor, the internal circulation fan, and the external circulation fan. DC power supply makes the air conditioning system operate more efficiently, reduces energy consumption; at the same time, it ensures the stable operation of the air conditioning system, and the noise generated during the operation of the air conditioning system is smaller.

[0033] The control module includes a control panel, and the control panel controls the operation and temperature adjustment of the air conditioner through circuits and sensors.

[0034] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An integrated DC air conditioner in a cabinet, characterized in that: The invention comprises an air conditioning box (1) and a partition (2), wherein the partition (2) divides the cavity in the air conditioning box (1) into an inner circulation chamber and an outer circulation chamber along the longitudinal direction, wherein the inner circulation chamber is provided with an evaporator (3) and an inner circulation fan (4); wherein the outer circulation chamber is provided with a compressor (5), a condenser (6) and an outer circulation fan (7); and the air conditioning box (1) is also provided with an air supply port (13) and an air return port (11) corresponding to the inner circulation fan (4) on both sides of the evaporator (3), wherein the air supply port (13) and the air return port (11) face the space inside the cabinet.

2. The integrated DC air conditioner in a cabinet according to claim 1, characterized in that: It also includes a power supply module, which is a DC power supply, and the compressor is powered by the DC power supply.

3. The integrated DC air conditioner in a cabinet according to claim 1, characterized in that: The evaporator (3) is arranged obliquely in the internal circulation chamber; and the air outlet of the internal circulation fan (4) faces the evaporator (3).

4. The integrated DC air conditioner in a cabinet according to claim 3, characterized in that: A water collecting box (8) for collecting condensed water is provided at the bottom of the evaporator (3), and the water collecting box (8) discharges the condensed water through a water pipe.

5. The integrated DC air conditioner in a cabinet according to claim 4, characterized in that: An air collecting hood (9) is provided between the air outlet of the internal circulation fan (4) and the air return outlet (11), and the air in the cabinet flows from the air return outlet (11) to the air outlet of the internal circulation fan (4) under the effective guidance of the air collecting hood (9).

6. The integrated DC air conditioner in a cabinet according to claim 1, characterized in that: The internal circulation fan (4) is defined to correspond to the bottom of the air conditioning box (1), and correspondingly, the top of the air conditioning box (1) is provided with an exhaust port (14) and an air inlet (12) corresponding to the external circulation fan (7), and the exhaust port (14) and the air inlet (12) are located on both sides of the condenser (6) along the longitudinal direction.

7. The integrated DC air conditioner in a cabinet according to claim 6, characterized in that: The condenser (6) is in the form of a serpentine coil and is arranged transversely and tilted in the external circulation chamber, and the airflow drawn by the external circulation fan (7) needs to pass through the condenser (6) for heat exchange before being discharged from the exhaust port (14).

8. The integrated DC air conditioner in a cabinet according to claim 1, characterized in that: The utility model also comprises a control panel, which controls the operation and temperature adjustment of the air conditioner through circuits and sensors.

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