Air supply equipment and air conditioning unit

Abstract

The present application provides an air supply device and an air conditioner unit. The air supply device of the present invention includes a housing, an evaporator, a wind power component, and an electrical box. A refrigerating air chamber and a heat dissipation air chamber are formed in the housing at intervals. An air inlet and an air outlet communicating with the refrigerating air chamber are formed on the housing. A return air inlet communicating with the heat dissipation air chamber is also formed on the housing. The heat dissipation air chamber is connected to the refrigerating air chamber through a communication port. The evaporator and the wind power component are installed in the refrigerating air chamber, and the electrical box is installed in the heat dissipation air chamber. By applying the technical solution of the present invention, the electrical box can be effectively cooled and the condensation on the electrical box can be avoided, thus preventing harm to electrical safety.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and more particularly, to an air supply device and an air conditioner unit. Background Art

[0002] Generally, both large commercial units and small household units are equipped with indoor air supply devices. Generally, the air supply device includes a housing and an evaporator, a wind power component, and an electrical box disposed within the housing.

[0003] Taking a traditional air duct machine as an example, the air duct machine uses a blowing heat exchange method, but the heat exchange efficiency of the blowing air duct machine is not as high as that of the air suction type air duct machine. In the air suction type air duct machine, since the electrical box and the evaporator are in a cold cavity, it is easy to cause electrical safety problems due to condensation of the electrical box.

[0004] In addition, if the electrical box is externally mounted, it will increase the overall length of the air duct machine, resulting in waste of space, and the cooling effect of the electrical box is also not good. Summary of the Invention

[0005] Embodiments of the present invention provide an air supply device and an air conditioner unit to solve the technical problem of poor cooling method of the electrical box in the existing air supply device.

[0006] An embodiment of the present application provides an air supply device, including: a housing, a refrigerating air cavity and a heat dissipation air cavity are formed at intervals within the housing, an air inlet and an air outlet communicating with the refrigerating air cavity are opened on the housing, a return air port communicating with the heat dissipation air cavity is further opened on the housing, and the heat dissipation air cavity is connected to the refrigerating air cavity through a communication port; an evaporator and a wind power component, which are installed in the refrigerating air cavity; and an electrical box, which is installed in the heat dissipation air cavity.

[0007] In one embodiment, the return air port and the air outlet are opened on the same side of the housing.

[0008] In one embodiment, the communication port is opposite to the evaporator.

[0009] In one embodiment, the refrigerating air cavity includes a first air cavity and a second air cavity that are connected and communicated, the evaporator is installed in the first air cavity, the wind power component is installed in the second air cavity, and the communication port is connected to the first air cavity.

[0010] In one embodiment, the second air cavity and the heat dissipation air cavity are arranged side by side, and the first air cavity is parallel to the second air cavity and the heat dissipation air cavity.

[0011] In one embodiment, the evaporator is opposite to the air inlet, and the wind power component is opposite to the air outlet.

[0012] In one embodiment, the communication port is also used for wire passing, and a rubber ring is installed on the communication port.

[0013] In one embodiment, the rubber seal is a corrugated wire-passing rubber seal.

[0014] In one embodiment, the wind power component includes a motor, a wind blade, and a volute. The wind blade is installed inside the volute, and the motor is drivingly connected to the wind blade.

[0015] The present application also provides an air-conditioning unit, including a air supply device, and the air supply device is the above-mentioned air supply device.

[0016] In the above embodiment, on the basis of the refrigerating air cavity, a heat dissipation air cavity is additionally partitioned at intervals, and the heat dissipation air cavity is connected to the refrigerating air cavity through a communication port. When the wind power component works in the refrigerating air cavity, a negative pressure will be generated in the refrigerating air cavity. On the one hand, air flow is introduced through the air inlet to adjust the temperature of the evaporator and then blown out from the air outlet. On the other hand, the negative pressure in the refrigerating air cavity will also act on the heat dissipation air cavity through the communication port, so that the air flow enters the heat dissipation air cavity from the air return port and then is discharged to the refrigerating air cavity through the communication port, allowing the air flow to dissipate heat from the electrical box. Since the electrical box is not in the same cavity as the evaporator, the electrical box will not condense due to too low temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0018] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the air supply device according to the present invention;

[0019] Figure 2 is Figure 1 the internal structural schematic diagram of the air supply device;

[0020] Figure 3 is Figure 2 the air flow distribution structural schematic diagram of the air supply device in the working state;

[0021] Figure 4 is Figure 1 the side sectional structural schematic diagram of the air supply device;

[0022] Figure 5 is Figure 2 the three-dimensional structural schematic diagram and sectional structural schematic diagram of the rubber seal of the air supply device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the embodiments and the drawings. Here, the schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not limit the present invention.

[0024] In order to solve the technical problem of the poor cooling method of the electrical box in the existing air supply equipment, it can effectively dissipate heat from the electrical box and avoid the condensation on the electrical box from endangering electrical safety. As Figure 1 , Figure 2 and Figure 3 shown, the air supply equipment of the present invention includes a housing 10, an evaporator 20, a wind power component 30 and an electrical box 40. A refrigerating air cavity a and a heat dissipation air cavity b are formed in the housing 10 at intervals. An air inlet 11 and an air outlet 12 communicating with the refrigerating air cavity a are opened on the housing 10. A return air port 13 communicating with the heat dissipation air cavity b is also opened on the housing 10. The heat dissipation air cavity b is communicated with the refrigerating air cavity a through a communication port 14. The evaporator 20 and the wind power component 30 are installed in the refrigerating air cavity a, and the electrical box 40 is installed in the heat dissipation air cavity b.

[0025] Applying the technical solution of the present invention, on the basis of the refrigerating air cavity a, an additional heat dissipation air cavity b is separated at intervals, and the heat dissipation air cavity b is communicated with the refrigerating air cavity a through the communication port 14. When the wind power component 30 works in the refrigerating air cavity a, a negative pressure will be generated in the refrigerating air cavity a. On the one hand, air flow is introduced through the air inlet 11 to adjust the temperature of the evaporator 20 and then blown out from the air outlet 12. On the other hand, the negative pressure in the refrigerating air cavity a will also act on the heat dissipation air cavity b through the communication port 14, so that the air flow enters the heat dissipation air cavity b from the return air port 13 and then is discharged to the refrigerating air cavity a from the communication port 14, and the air flow dissipates heat from the electrical box 40. Since the electrical box 40 is not in the same cavity as the evaporator 20, the electrical box 40 will not condense due to too low temperature.

[0026] As a preferred implementation manner, as Figure 1 shown, the return air port 13 and the air outlet 12 are opened on the same side of the housing 10. In this way, the relatively low-temperature air flow blown out from the air outlet 12 can be introduced through the return air port 13, so as to effectively prevent the electrical box 40 from having too high a temperature rise and affecting the use.

[0027] As Figure 3 shown, in the technical solution of this embodiment, the communication port 14 is opposite to the evaporator 20. In this way, the air heated by the electrical box 40 can be heat-exchanged and cooled by the evaporator 20 again, effectively improving the energy efficiency.

[0028] During manufacturing, generally two sheet metal cavities are manufactured to install the evaporator 20 and the wind power component 30 respectively. As Figure 2 shown, in the technical solution of this embodiment, the refrigerating air cavity a includes a first air cavity a1 and a second air cavity a2 which are communicated with each other. The evaporator 20 is installed in the first air cavity a1, the wind power component 30 is installed in the second air cavity a2, and the communication port 14 is communicated with the first air cavity a1. Optionally, the second air cavity a2 and the heat dissipation air cavity b are arranged side by side, and the first air cavity a1 is parallel to the second air cavity a2 and the heat dissipation air cavity b.

[0029] As other alternative embodiments, the refrigerated air chamber a may also not distinguish between the first air chamber a1 and the second air chamber a2, but be integrally manufactured and formed.

[0030] Such as Figure 3 and Figure 4 shown, in the technical solution of the present invention, the evaporator 20 is opposite to the air inlet 11, and the wind power component is opposite to the air outlet 12. When in use, as the wind power component 30 operates, the pressure in the second air chamber a2 is less than the atmospheric pressure. Under the action of the negative pressure, the air flow enters the first air chamber a1 from the air inlet 11, exchanges heat with the evaporator 20, then enters the second air chamber a2, and is blown out from the air outlet 12. At the same time, due to the first air chamber a1 with negative pressure, the air enters the heat dissipation air chamber b from the air return port 13, dissipates heat from the electrical box 40, and then enters the second air chamber a2 from the communication port 14 to exchange heat with the evaporator 20, and is mixed with the air entering from the air inlet 11.

[0031] As a preferred embodiment, as Figure 2 shown, the communication port 14 is also used for wire passing, and a rubber ring 141 is installed on the communication port 14. More preferably, as Figure 5 shown, the rubber ring 141 is a corrugated wire-passing rubber ring. This corrugated wire-passing rubber ring can be used for wire passing and ventilation at the same time, and is not affected by the assembly error between two sheet metal parts, and can freely connect two cavities to ensure tightness.

[0032] Optionally, the opening structure in this patent can be a circular, square or other ventilable structure, or a filter screen structure.

[0033] Optionally, the above-mentioned evaporator 20 is a V-shaped evaporator, and evaporator structures such as a straight plate evaporator also belong to the scope of implementation of the present invention.

[0034] Such as Figure 2 shown, in the technical solution of this embodiment, the wind power component 30 includes a motor 31, a wind blade and a volute 32. The wind blade is installed in the volute 32, and the motor 31 is drivingly connected to the wind blade. In the technical solution of the present invention, a double-wind blade structure with one motor 31 driving two wind blades and the volute 32 is adopted. As other alternative embodiments, structures such as single wind blade and triple wind blade also belong to the scope of implementation of the present invention. Optionally, the wind blade is a centrifugal wind blade.

[0035] It should be noted that the technical solution of the present invention is particularly applicable to air duct machines,

[0036] The present invention also provides an air-conditioning unit, including the above-mentioned air supply device, which can effectively utilize the air flow to cool the electrical box, reduce the temperature rise to ensure that the electronic components can work normally, and ensure the normal operation of the electric control function of the air-conditioning unit.

[0037] The technical solution of the present invention divides the air supply device into three cavities, enabling the electrical box of the air supply device to be built-in. Without affecting its heat dissipation, it avoids the electrical safety problem caused by the condensation of the electrical box in the cold cavity. The air passing through the electrical box 40 can be pre-cooled in the first air cavity a1, which can not only prevent condensation in the second air cavity a2 but also improve energy efficiency. In addition, the electrical box of the air suction type air supply device can be built-in, reducing the size of the air duct machine, thereby reducing its inventory floor area, increasing the number of units that can be loaded into a container, and saving costs.

[0038] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various changes and modifications can be made to the embodiments of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An air supply device, characterized in that, The air supply device is an indoor air supply device, including: A housing (10), in which an isolated refrigerating air cavity (a) and a heat dissipation air cavity (b) are formed. An air inlet (11) and an air outlet (12) communicating with the refrigerating air cavity (a) are provided on the housing (10). A return air inlet (13) communicating with the heat dissipation air cavity (b) is also provided on the housing (10). The heat dissipation air cavity (b) is connected to the refrigerating air cavity (a) through a communication port (14); An evaporator (20) and a wind power component (30), which are installed in the refrigerating air cavity (a); An electrical box (40), which is installed in the heat dissipation air cavity (b); The return air inlet (13) and the air outlet (12) are provided on the same side of the housing (10); The communication port (14) is opposite to the evaporator (20); The refrigerating air cavity (a) includes a first air cavity (a1) and a second air cavity (a2) that are connected. The evaporator (20) is installed in the first air cavity (a1), the wind power component (30) is installed in the second air cavity (a2), and the communication port (14) is connected to the first air cavity (a1).

2. The air supply device according to claim 1, characterized in that, The second air cavity (a2) and the heat dissipation air cavity (b) are arranged side by side, and the first air cavity (a1) is parallel to the second air cavity (a2) and the heat dissipation air cavity (b).

3. The air supply device according to claim 1, characterized in that, The evaporator (20) is opposite to the air inlet (11), and the wind power component (30) is opposite to the air outlet (12).

4. The air supply device according to claim 1, characterized in that The communication port (14) is also used for wire passing, and a rubber ring (141) is installed on the communication port (14).

5. The air supply device according to claim 4, characterized in that, The rubber ring (141) is a corrugated wire-passing rubber ring.

6. The air supply device according to claim 1, characterized in that, The wind power component (30) includes a motor (31), a wind blade, and a volute (32). The wind blade is installed in the volute (32), and the motor (31) is drivingly connected to the wind blade.

7. An air conditioning unit, comprising a air supply device, characterized in that, The air supply device is the air supply device according to any one of claims 1 to 6.

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