Air heat exchange device and air conditioning unit

Abstract

The application provides an air heat exchange device and an air conditioning unit. The air heat exchange device comprises a main shell, a heat exchanger and a fan component, wherein the main shell is provided with a main return air inlet, an air outlet and a closable secondary return air inlet. The heat exchanger and the fan component are arranged in the main shell, the fan component generates air flow power, and the heat exchanger exchanges heat with the air entering the main shell. According to the technical scheme of the application, in addition to the main return air inlet, the closable secondary return air inlet is also arranged on the main shell. When the air heat exchange device needs to further enhance the heat exchange effect, the secondary return air inlet can be opened to increase the air inlet amount, thereby meeting the heat exchange requirement.

Description

Technical Field

[0001] This invention relates to the field of air conditioning equipment technology, and more specifically, to an air heat exchange device and an air conditioning unit. Background Technology

[0002] Multi-split air conditioning systems are known for their energy efficiency, intelligent regulation, and precise temperature control. They are highly automated, flexible in use, and easy to manage, and are mainly used in office buildings of various sizes. However, current multi-split systems often have a single return air method for either the indoor or outdoor unit, which makes it difficult to meet the demands for high-efficiency air heat exchange. Summary of the Invention

[0003] This invention provides an air heat exchange device and an air conditioning unit to solve the technical problem that existing multi-split systems have a single return air method for the indoor or outdoor unit, making it difficult to meet higher heat exchange requirements.

[0004] The present invention provides an air heat exchange device, comprising: a main housing, wherein the main housing has a main return air inlet, an air outlet and an openable and closable secondary return air inlet; a heat exchanger disposed inside the main housing for exchanging heat with the air entering the main housing; and a fan component disposed inside the main housing for generating airflow power.

[0005] In one embodiment, the main return air vent and the air outlet are located on the first side of the main housing, and the secondary return air vent is located on the second side of the main housing, with the second side of the main housing opposite to the first side of the main housing.

[0006] In one embodiment, the heat exchanger bends are disposed within the main housing, including a first bend section and a second bend section connected to each other.

[0007] In one embodiment, the first side bend of the main housing includes a first bend surface and a second bend surface connected together. A main return air inlet is formed on the first bend surface, and an air outlet is formed on the second bend surface. The main return air inlet corresponds to the first bend section, and the air outlet corresponds to the second bend section.

[0008] In one embodiment, the air outlet is located above the main return air outlet, and the second bend surface is tilted upward so that the air outlet's airflow direction is upward relative to the horizontal direction.

[0009] In one implementation, the first bend is tilted downwards so that the return air direction of the main return air inlet is downwards relative to the horizontal direction.

[0010] In one embodiment, the second side of the main housing is bent, including a third bent surface and a fourth bent surface connected together, the fourth bent surface being located above the third bent surface, and the third bent surface being inclined upward so that the airflow entering from the main return air inlet is bent upward.

[0011] In one embodiment, the secondary return air vent is located on the fourth bend surface, which is arranged in a vertical direction.

[0012] In one embodiment, a partition is provided between the first bending surface and the second bending surface to prevent airflow from short-circuiting from the main return air inlet to the air outlet.

[0013] In one embodiment, the secondary return air vent includes an air vent body and a damper movably installed on the air vent body. The secondary return air vent includes a closed state where the damper moves on the air vent body, and an open state where it avoids the air vent body.

[0014] The present invention also provides an air conditioning unit, including a main unit and an air heat exchange device connected to the main unit, wherein the air heat exchange device is the air heat exchange device described above.

[0015] In the above embodiment, in addition to the main return air inlet, a secondary return air inlet that can be opened and closed is also provided on the main housing. When the air heat exchange device needs to further enhance the heat exchange effect, the secondary return air inlet can be opened to increase the air intake, thereby meeting the heat exchange requirements. Attached Figure Description

[0016] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 This is a cross-sectional structural schematic diagram of an embodiment of the air heat exchange device according to the present invention;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of an embodiment of the air heat exchange device according to the present invention, and its left and right view schematic diagrams. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this invention are used to explain the invention, but are not intended to limit the invention.

[0020] Figure 1 and Figure 2 An embodiment of the air heat exchange device of the present invention is shown. The air heat exchange device includes a main housing 10, a heat exchanger 20, and a fan assembly 30. The main housing 10 has a main return air inlet 11, an air outlet 12, and an openable and closable secondary return air inlet 13. The heat exchanger 20 and the fan assembly 30 are disposed inside the main housing 10. The fan assembly 30 generates airflow power, and the heat exchanger 20 exchanges heat with the air entering the main housing 10.

[0021] In addition to the main return air inlet 11, the main housing 10 is also provided with an openable and closable secondary return air inlet 13. When the air heat exchange device needs to further enhance the heat exchange effect, the secondary return air inlet 13 can be opened to increase the air intake, thereby meeting the heat exchange requirements.

[0022] It should also be noted that, in the technical solution of the present invention, the secondary return air vent 13 can also be connected to the fresh air duct, so that the air heat exchange device of the present invention can be used as a fresh air unit.

[0023] Preferably, in the technical solution of this embodiment, both the main return air inlet 11 and the auxiliary return air inlet 13 are equipped with a filter device to effectively filter the air entering the main housing 10, making the exhaust air cleaner.

[0024] like Figure 1 and Figure 2 As shown, in a more preferred embodiment, the main return air vent 11 and the air outlet vent 12 are located on the first side of the main housing 10, and the secondary return air vent 13 is located on the second side of the main housing 10, with the second side of the main housing 10 opposite to the first side. By placing the secondary return air vent 13 on the second side of the main housing 10 opposite to the first side, return air can be directed to different locations, resulting in better return air effect and better heat exchange effect on indoor air, leading to more significant changes in room temperature.

[0025] Optionally, in the technical solution of this embodiment, such as Figure 1 As shown, the heat exchanger 20 is bent and disposed within the main housing 10, including a first bent section 21 and a second bent section 22 connected to each other. By bending the heat exchanger 20 within the main housing 10, the space occupied by the heat exchanger 20 within the main housing 10 can be reduced, which is beneficial for the miniaturization of the air heat exchange device.

[0026] like Figure 1 As shown, optionally, in the technical solution of this embodiment, the first side of the main housing 10 is bent, including a first bent surface a and a second bent surface b connected together. A main return air inlet 11 is formed on the first bent surface a, and an air outlet 12 is formed on the second bent surface b. The main return air inlet 11 corresponds to the first bent section 21, and the air outlet 12 corresponds to the second bent section 22. Through the above structural arrangement, the return air and the air outlet can be more targeted relative to the bent heat exchanger 20, allowing the airflow to act more directly on the heat exchanger 20.

[0027] Preferably, in this embodiment, the air outlet 12 is located above the main return air inlet 11, and the second bending surface b is inclined upwards so that the air outlet 12's airflow direction is upwards relative to the horizontal direction. It should be noted that if the air heat exchanger is used indoors, the cold air can be blown upwards relative to the horizontal direction to avoid direct airflow and utilize the settling effect of the cold air to make cooling more uniform. If the air heat exchanger is used outdoors, and it rains, the air outlet can deflect the rainwater, preventing excessive rainwater from entering the main housing 10. More preferably, the first bending surface a is inclined downwards so that the return air direction of the main return air inlet 11 is downwards relative to the horizontal direction. If the air heat exchanger is used indoors, it can be used in conjunction with the aforementioned air outlet 12 configuration for return air, which is beneficial for air circulation; if the air heat exchanger is used outdoors, it can also prevent the main return air inlet 11 from attracting rainwater on rainy days.

[0028] As a more preferred implementation method, such as Figure 1 and Figure 2 As shown, the second side of the main housing 10 is bent, including a third bending surface c and a fourth bending surface d connected together, with the fourth bending surface d located above the third bending surface c. The third bending surface c is inclined upwards so that the airflow entering through the main return air inlet 11 is bent upwards, thereby facilitating the airflow through the bent heat exchanger 20 within the main housing 10, such as... Figure 1 As shown, the airflow entering from the main return air inlet 11 passes through the heat exchanger 20 in a C-shape.

[0029] like Figure 2 As shown, in the technical solution of this embodiment, the secondary return air inlet 13 is located on the fourth bending surface d, which is arranged in the vertical direction. The secondary return air inlet 13 is also opposite to the air outlet 12, which is beneficial to enhance the heat exchange effect on the heat exchanger 20.

[0030] As a preferred implementation method, such as Figure 1 As shown, a partition e is provided between the first bending surface a and the second bending surface b. The function of the partition e is to prevent the airflow from short-circuiting from the main return air inlet 11 to the air outlet 12.

[0031] like Figure 2 As shown, in this embodiment, the secondary return air vent 13 includes an air vent body 131 and a damper 132 movably installed on the air vent body 131. The secondary return air vent 13 includes a closed state where the damper 132 moves the air vent body 131, and an open state where it avoids the air vent body 131. When it is necessary to close the secondary return air vent 13, the secondary return air vent 13 is operated to the closed state; when it is necessary to open the secondary return air vent 13, the secondary return air vent 13 is operated to the open state.

[0032] The present invention also provides an air conditioning unit, which includes a main unit and an air heat exchange device connected to the main unit, wherein the air heat exchange device is the aforementioned air heat exchange device. Using the aforementioned air heat exchange device can improve the energy efficiency of the air conditioning unit.

[0033] The technical solution of this invention differs from the structure of previous air conditioning units. Compared to traditional fresh air handling units and units that use indoor and outdoor units together, the technical solution of this invention divides an air conditioning unit into three parts, allowing for a relatively smaller volume of each part and facilitating portable and concealed installation. Furthermore, this invention only requires the manufacture of two functional modules: the main unit and the air heat exchanger. The air heat exchanger can be used as an outdoor unit or an indoor unit. One main unit paired with two air heat exchangers completes the air conditioning unit assembly. When different power levels of air conditioning units are required for different usage locations, simply adjusting the number of air heat exchangers and the main unit is sufficient to meet cooling or heating needs.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations can be made to the embodiments of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An air heat exchanging device, characterized by, The application relates to an air heat exchange device. The air heat exchange device comprises a main shell (10), a heat exchanger (20) and a fan component (30). The main shell (10) is provided with a main return air inlet (11), an air outlet (12) and a closable auxiliary return air inlet (13). The heat exchanger (20) is arranged in the main shell (10) and used for heat exchange with air entering the main shell (10). The fan component (30) is arranged in the main shell (10) and used for generating air flow power. The main return air inlet (11) and the air outlet (12) are located on a first side of the main shell (10), and the auxiliary return air inlet (13) is located on a second side of the main shell (10) opposite to the first side of the main shell (10). The heat exchanger (20) is arranged in the main shell (10) in a bent mode and comprises a first bent section (21) and a second bent section (22) connected with each other. The first side of the main shell (10) is arranged in a bent mode and comprises a first bent surface (a) and a second bent surface (b) connected with each other. The first bent surface (a) is provided with the main return air inlet (11), and the second bent surface (b) is provided with the air outlet (12). The main return air inlet (11) corresponds to the first bent section (21), and the air outlet (12) corresponds to the second bent section (22). The air outlet (12) is located on the upper side of the main return air inlet (11), and the second bent surface (b) is inclined upwards so that the air outlet direction of the air outlet (12) is upwards relative to the horizontal direction.

2. The air heat exchange device of claim 1, wherein The first bent surface (a) is inclined downwards so that the return air direction of the main return air inlet (11) is downwards relative to the horizontal direction.

3. The air heat exchange device of claim 1, wherein The second side of the main shell (10) is arranged in a bent mode and comprises a third bent surface (c) and a fourth bent surface (d) connected with each other.

4. An air conditioning unit comprising a main unit and an air heat exchanging device connected to the main unit, characterized in that, The fourth bent surface (d) is located on the upper side of the third bent surface (c), and the third bent surface (c) is inclined upwards so that the air flow entering the main return air inlet (11) is bent upwards. The auxiliary return air inlet (13) is located on the fourth bent surface (d), and the fourth bent surface (d) is arranged in a vertical direction. A partition plate (e) is arranged between the first bent surface (a) and the second bent surface (b) and used for preventing air flow short circuit from the main return air inlet (11) to the air outlet (12). The auxiliary return air inlet (13) comprises an air inlet body (131) and a damper (132) movably arranged on the air inlet body (131). The auxiliary return air inlet (13) comprises a closing state in which the damper (132) moves on the air inlet body (131) and an opening state in which the damper (132) avoids the air inlet body (131). The air heat exchange device is the air heat exchange device in any one of claims 1 to 3.

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