Self-cleaning air conditioning unit

Abstract

This utility model belongs to the field of HVAC equipment technology and discloses a self-cleaning air conditioning unit. The self-cleaning air conditioning unit includes a mixing section, a filter section, a coil section, a fan section, and an air outlet section arranged sequentially. The fan section is equipped with a fan that can selectively rotate forward or backward. The filter section is equipped with a filter mechanism, and the coil section is equipped with a chilled water coil. The mixing section is equipped with a dust collection bag. When the fan rotates forward, airflow is drawn into the mixing section and flows sequentially through the filter mechanism, chilled water coil, and fan, finally exiting from the air outlet section. When the fan rotates backward, airflow is drawn into the air outlet section and flows sequentially through the fan, chilled water coil, and filter mechanism, finally flowing from the mixing section to the dust collection bag. The self-cleaning air conditioning unit provided by this utility model cleans impurities on the filter mechanism by reversing the fan and collects impurities through the dust collection bag, ensuring the normal operation of the self-cleaning air conditioning unit and saving manpower.

Description

Technical Field

[0001] This utility model relates to the field of heating, ventilation and air conditioning equipment technology, and in particular to a self-cleaning air conditioning unit. Background Technology

[0002] In an air conditioning unit, when the motor drives the fan, airflow is drawn into the unit. Dust, particles and other impurities follow the direction of airflow, first passing through the filter in the unit, then through the chilled water coil section and other functional sections, before being drawn in from the fan section and blown out into the room.

[0003] After long-term operation, air conditioning units accumulate a lot of dust, particles and other impurities on their filters. This requires manual entry into the unit to replace or clean the filters, which is not only time-consuming and labor-intensive, but also affects the normal operation of the air conditioning unit.

[0004] Therefore, there is an urgent need for a self-cleaning air conditioning unit to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a self-cleaning air conditioning unit that cleans impurities on the filter mechanism by reversing the fan and collects impurities by using a dust collection bag, thereby ensuring the normal operation of the self-cleaning air conditioning unit and saving manpower.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A self-cleaning air conditioning unit is provided, comprising a mixing section, a filter section, a coil section, a fan section, and an air outlet section arranged sequentially.

[0008] The fan section is equipped with a fan that can selectively rotate forward or in reverse.

[0009] The filtration section is equipped with a filtration mechanism, and the coil section is equipped with a cold water coil.

[0010] The mixing section is equipped with a dust collection bag;

[0011] When the fan rotates forward, the airflow is drawn in from the mixing section and flows sequentially through the filter mechanism, the chilled water coil, and the fan, and finally flows out from the outlet section;

[0012] When the fan reverses, the airflow is drawn in from the outlet section and flows sequentially through the fan, the chilled water coil, and the filter mechanism, and finally flows from the mixing section to the dust collection bag.

[0013] Specifically, when the fan rotates forward, the self-cleaning air conditioning unit operates normally. After drawing in air through the mixing section, the airflow passes through the filter mechanism, chilled water coil, and fan in sequence, and then flows out into the room from the outlet section. When the fan rotates in reverse, the self-cleaning air conditioning unit enters self-cleaning mode. It draws in air through the outlet section, and the airflow passes through the fan, chilled water coil, and filter mechanism in sequence, blowing off dust and other impurities in the filter mechanism. The dust and other impurities are then collected through the dust collection bag. There is no need to stop the unit to clean the filter mechanism, ensuring the normal operation of the self-cleaning air conditioning unit and saving manpower.

[0014] As a preferred technical solution, the dust collection bag is installed on the outer wall of the mixing section, and the mixing section is provided with a first air vent, which is used to connect the mixing section and the dust collection bag.

[0015] As a preferred technical solution, a first air valve is installed at the first air outlet. When the fan reverses, the first air valve opens to allow the airflow in the mixing section to enter the dust collection bag.

[0016] As a preferred technical solution, the dust collection bag is detachably installed on the outer wall of the mixing section.

[0017] As a preferred technical solution, the mixing section is provided with a second air vent, which is used to connect the mixing section with the outdoor atmosphere.

[0018] As a preferred technical solution, a second air valve is installed at the second air outlet. When the fan rotates forward, the second air valve opens to allow outdoor airflow to enter the mixing section.

[0019] As a preferred technical solution, the mixing section is provided with a third air vent, which is used to connect the mixing section and the indoor atmosphere.

[0020] As a preferred technical solution, a third air valve is installed at the third air outlet. When the fan rotates forward, the third air valve opens to allow indoor airflow to enter the mixing section.

[0021] As a preferred technical solution, the air outlet section is provided with a fourth air outlet, which is used to connect the air outlet section and the indoor atmosphere, and a fourth air valve is installed at the fourth air outlet.

[0022] When the fan is rotating in the forward direction, the fourth air valve opens to allow airflow in the outlet section to enter the room;

[0023] When the fan reverses, the fourth air valve opens to allow indoor airflow into the air outlet section.

[0024] As a preferred technical solution, the filtration mechanism includes:

[0025] The filter frame has multiple hollow sections arranged in a matrix;

[0026] Multiple filter units are installed one-to-one in the multiple hollow sections. The filter units include plate filters and bag filters. The plate filters are embedded in the hollow sections, and the bag filters are installed on the side of the hollow sections facing the fan, with the bag opening side of the bag filters facing the mixing section.

[0027] The beneficial effects of this utility model are:

[0028] The self-cleaning air conditioning unit provided by this utility model filters dust and impurities from the airflow through a filter mechanism in the filter section. The fan section is equipped with a selectively rotating fan that can change the direction of airflow within the self-cleaning air conditioning unit. When the fan rotates forward, the self-cleaning air conditioning unit operates normally. After air is drawn in through the mixing section, the airflow sequentially flows through the filter mechanism, chilled water coil, and fan, exiting from the outlet section into the room. When the fan rotates in reverse, the self-cleaning air conditioning unit enters self-cleaning mode. Air is drawn in through the outlet section, and the airflow sequentially flows through the fan, chilled water coil, and filter mechanism, blowing off dust and other impurities from the filter mechanism. These impurities are then collected by a dust bag, eliminating the need to stop the unit for filter cleaning, ensuring normal operation of the self-cleaning air conditioning unit, and saving manpower. Attached Figure Description

[0029] Figure 1 This is a structural schematic diagram of the self-cleaning air conditioning unit provided by this utility model;

[0030] Figure 2 This is a schematic diagram of the airflow of the self-cleaning air conditioning unit provided by this utility model when the fan is rotating forward;

[0031] Figure 3 This is a schematic diagram of the airflow of the self-cleaning air conditioning unit provided by this utility model when the fan reverses direction;

[0032] Figure 4 This is a schematic diagram of the filtration mechanism provided by this utility model.

[0033] In the picture:

[0034] 100. Mixing section; 200. Filtering section; 300. Coil section; 400. Fan section; 500. Air outlet section;

[0035] 1. Fan; 2. Filter mechanism; 21. Filter frame; 211. Hollowed-out part; 22. Filter unit; 221. Plate filter; 222. Bag filter; 3. Cold water coil; 4. Dust collection bag; 5. First air valve; 6. Second air valve; 7. Third air valve; 8. Fourth air valve; 10. Frame. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0040] like Figures 1-4 As shown, this embodiment provides a self-cleaning air conditioning unit, which is an integrated air conditioning unit including a frame 10 and a mixing section 100, a filter section 200, a coil section 300, a fan section 400, and an air outlet section 500 arranged sequentially along the frame 10. The fan section 400 is equipped with a fan 1, the filter section 200 is equipped with a filter mechanism 2, and the coil section 300 is equipped with a chilled water coil 3. The fan 1 is used to propel gas into and out of the frame 10, the filter mechanism 2 is used to filter dust and other impurities in the airflow, and the chilled water coil 3 contains a flowing temperature-changing medium to change the temperature of the gas flowing through the chilled water coil 3.

[0041] Furthermore, such as Figures 1-3 As shown, the mixing section 100 is equipped with a dust collection bag 4, and the fan 1 can selectively rotate forward or reverse: when the fan 1 rotates forward, the airflow is drawn into the mixing section 100 and flows through the filter mechanism 2, the chilled water coil 3, and the fan 1 in sequence, and finally flows out from the outlet section 500; when the fan 1 rotates in reverse, the airflow is drawn into the outlet section 500 and flows through the fan 1, the chilled water coil 3, and the filter mechanism 2 in sequence, and finally flows from the mixing section 100 to the dust collection bag 4.

[0042] Specifically, in the self-cleaning air conditioning unit provided in this embodiment, dust and impurities in the airflow are filtered by the filter mechanism 2 in the filter section 200, and a fan 1 that can selectively rotate forward or reverse is provided in the fan section 400 to change the airflow direction within the self-cleaning air conditioning unit. Figure 2 As shown, when fan 1 rotates forward, the self-cleaning air conditioning unit operates normally. After air is drawn in through the mixing section 100, the airflow sequentially passes through the filter mechanism 2, chilled water coil 3, and fan 1, and flows out into the room from the air outlet section 500; Figure 3 As shown, when the fan 1 reverses, the self-cleaning air conditioning unit enters the self-cleaning mode. It draws air back through the air outlet section 500, and the airflow flows through the fan 1, chilled water coil 3, and filter mechanism 2 in sequence, blowing off the dust and other impurities in the filter mechanism 2. The dust and other impurities are collected through the dust collection bag 4. There is no need to stop the machine to clean the filter mechanism 2, ensuring the normal use of the self-cleaning air conditioning unit and saving manpower.

[0043] For example, the dust collection bag 4 is installed on the outer wall of the mixing section 100. The mixing section 100 is provided with a first air inlet, which is used to connect the mixing section 100 and the dust collection bag 4. When the fan 1 reverses, the gas in the mixing section 100 enters the dust collection bag 4 through the first air inlet, so as to carry dust and other impurities into the dust collection bag 4.

[0044] Furthermore, such as Figures 1-3 As shown, a first air valve 5 is installed at the first air outlet. When the fan 1 reverses, the first air valve 5 opens to allow airflow in the mixing section 100 to enter the dust collection bag 4. When the fan 1 rotates forward, the first air valve 5 closes to prevent air entering from the outside from blowing dust from the dust collection bag 4 back in and re-contaminating the filter mechanism 2 and other internal mechanisms. At the same time, it also prevents air entering the mixing section 100 from other air outlets from flowing directly out through the first air outlet and the dust collection bag 4, ensuring the effective airflow.

[0045] For example, the dust collection bag 4 can be detachably installed on the outer wall of the mixing section 100 by means of snap-fit ​​connection, threaded connection, etc., so that the staff can easily remove the dust collection bag 4 to clean the dust without stopping the machine, which greatly improves the convenience of use.

[0046] For example, the mixing section 100 is provided with a second air vent, which connects the mixing section 100 to the outdoor atmosphere, allowing fresh air from outside to enter the self-cleaning air conditioning unit. When the fan 1 rotates forward, outside air enters the mixing section 100 through the second air vent to supply fresh air to the self-cleaning air conditioning unit, thereby achieving external air circulation.

[0047] For example, such as Figures 1-3 As shown, a second air valve 6 is installed at the second air outlet. When the fan 1 rotates forward, the second air valve 6 can be opened to allow outdoor airflow to enter the mixing section 100.

[0048] For example, the mixing section 100 is provided with a third air vent, which connects the mixing section 100 to the indoor atmosphere and allows indoor return air to enter the self-cleaning air conditioning unit. When the fan 1 rotates forward, outside air can enter the mixing section 100 through the third air vent to input return air into the self-cleaning air conditioning unit to achieve internal circulation.

[0049] For example, such as Figures 1-3 As shown, a third air valve 7 is installed at the third air outlet. When the fan 1 rotates forward, the third air valve 7 can be opened to allow indoor airflow to enter the mixing section 100.

[0050] For example, the air outlet section 500 is provided with a fourth air vent, which is used to connect the air outlet section 500 and the indoor atmosphere. When the fan 1 rotates forward, the gas in the air outlet section 500 flows out through the fourth air vent; when the fan 1 rotates in reverse, the indoor air flows out through the fourth air vent and into the air outlet section 500.

[0051] For example, such as Figures 1-3 As shown, a fourth air valve 8 is installed at the fourth air outlet. When the self-cleaning air conditioning unit is started, the fourth air valve 8 is always in the open state.

[0052] When fan 1 rotates forward, the first air valve 5 is closed and the fourth air valve 8 is open; if in external circulation mode, the second air valve 6 is open and the third air valve 7 is closed; if in internal circulation mode, the second air valve 6 is closed and the third air valve 7 is open.

[0053] When fan 1 reverses, the first air valve 5 and the fourth air valve 8 are both opened, while the second air valve 6 and the third air valve 7 are both closed, to prevent impurities carried in the gas from being blown directly outdoors or indoors.

[0054] For example, such as Figure 4As shown, the filter mechanism 2 includes a filter frame 21 and multiple filter units 22. The filter frame 21 has multiple hollow sections 211 arranged in a matrix. The multiple filter units 22 are installed one-to-one in the multiple hollow sections 211. The filter unit 22 includes a plate filter 221 and a bag filter 222. The plate filter 221 is embedded in the hollow section 211, and the bag filter 222 is installed in the mixing section 100 on the side of the hollow section 211 facing the fan 1.

[0055] When the fan 1 rotates forward, the gas flowing into the self-cleaning air conditioning unit passes through the plate filter 221 and the bag filter 222 in sequence. Dust, particles and other impurities in the gas are filtered through two stages, improving the filtration effect. When the fan 1 rotates in reverse, dust, particles and other impurities in the bag filter 222 are blown out through the bag opening in the opposite direction, and the impurities attached to the plate filter 221 are also blown off in the opposite direction. The impurities are easy to remove and the self-cleaning efficiency is high.

[0056] For example, the plate filter 221 and the bag filter 222 are detachably installed on the perforated part 211 by means of snap-fit ​​connection, so that the staff can remove the plate filter 221 and the bag filter 222 when the machine is stopped for thorough cleaning or replacement.

[0057] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A self-cleaning air conditioning unit, characterized in that, It includes a mixing section (100), a filtration section (200), a coil section (300), a fan section (400), and an air outlet section (500) arranged in sequence; The fan section (400) is equipped with a fan (1), which can selectively rotate forward or in reverse; The filter section (200) is equipped with a filter mechanism (2), and the coil section (300) is equipped with a cold water coil (3); The mixing section (100) is equipped with a dust collection bag (4); When the fan (1) rotates forward, the airflow is drawn in from the mixing section (100) and flows sequentially through the filter mechanism (2), the chilled water coil (3), the fan (1), and finally flows out from the air outlet section (500); When the fan (1) reverses, the airflow is drawn in from the air outlet section (500) and flows sequentially through the fan (1), the chilled water coil (3) and the filter mechanism (2), and finally flows from the mixing section (100) to the dust collection bag (4).

2. The self-cleaning air conditioning unit according to claim 1, characterized in that, The dust collection bag (4) is installed on the outer wall of the mixing section (100). The mixing section (100) is provided with a first air vent, which is used to connect the mixing section (100) and the dust collection bag (4).

3. The self-cleaning air conditioning unit according to claim 2, characterized in that, A first air valve (5) is installed at the first air outlet. When the fan (1) reverses, the first air valve (5) opens to allow the airflow in the mixing section (100) to enter the dust collection bag (4).

4. The self-cleaning air conditioning unit according to claim 2, characterized in that, The dust collection bag (4) is detachably installed on the outer wall of the mixing section (100).

5. The self-cleaning air conditioning unit according to any one of claims 1-4, characterized in that, The mixing section (100) is provided with a second air vent, which is used to connect the mixing section (100) and the outdoor atmosphere.

6. The self-cleaning air conditioning unit according to claim 5, characterized in that, A second air valve (6) is installed at the second air outlet. When the fan (1) rotates forward, the second air valve (6) opens to allow outdoor airflow to enter the mixing section (100).

7. The self-cleaning air conditioning unit according to any one of claims 1-4, characterized in that, The mixing section (100) is provided with a third air vent, which is used to connect the mixing section (100) and the indoor atmosphere.

8. The self-cleaning air conditioning unit according to claim 7, characterized in that, A third air valve (7) is installed at the third air outlet. When the fan (1) rotates forward, the third air valve (7) opens to allow indoor airflow to enter the mixing section (100).

9. The self-cleaning air conditioning unit according to any one of claims 1-4, characterized in that, The air outlet section (500) is provided with a fourth air outlet, which is used to connect the air outlet section (500) and the indoor atmosphere. A fourth air valve (8) is installed at the fourth air outlet. When the fan (1) is rotating in the forward direction, the fourth air valve (8) opens to allow the airflow in the air outlet section (500) to enter the room; When the fan (1) reverses, the fourth air valve (8) opens to allow indoor airflow into the air outlet section (500).

10. The self-cleaning air conditioning unit according to any one of claims 1-4, characterized in that, The filtration mechanism (2) includes: The filter frame (21) has multiple hollow sections (211) arranged in a matrix; Multiple filter units (22) are installed one-to-one in the multiple perforated sections (211). Each filter unit (22) includes a plate filter (221) and a bag filter (222). The plate filter (221) is embedded in the perforated section (211), and the bag filter (222) is installed on the side of the perforated section (211) facing the fan (1), with the bag opening side of the bag filter (222) facing the mixing section (100).

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