Filter screen self-cleaning structure and air conditioner

Abstract

The invention provides a filter screen self-cleaning structure and an air conditioner, the filter screen self-cleaning structure comprises a main body assembly and a filter screen, the main body assembly is provided with an air inlet, a water pan and a heat exchanger mounting position, the air inlet is communicated with the heat exchanger mounting position, the heat exchanger mounting position is located above the water pan, and the filter screen is arranged at the air inlet; the device further comprises a water absorption piece and a water accumulation box. The filter screen and / or the main body assembly are / is provided with a connecting structure; the water absorbing piece is connected with the connecting structure; the water accumulation box is connected with the filter screen, or the water accumulation box is connected with the main body assembly; the water accumulation box comprises a water inlet and a water outlet, the lower end of the water absorption part serves as a water absorption end, the upper end of the water absorption part serves as a drainage end, the water absorption end is arranged in the water pan, the drainage end is connected with the water inlet, and the water outlet is located above the filter screen. The air conditioner comprises the filter screen self-cleaning structure. The structure is simple, power sources such as a motor and a water pump do not need to be additionally arranged, energy consumption is not increased, noise is not generated, user experience is improved, energy consumption is saved for users, and the environment-friendly concept is better met.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly relates to a filter screen self-cleaning structure and an air conditioner. Background Art

[0002] There is a conventional air conditioner that uses condensed water to clean the filter screen. It includes a housing, a filter screen assembly, a water supply system, and a spraying device. An air inlet communicating with the interior is formed on the housing. The filter screen assembly is arranged inside the housing and includes a filter screen bracket and a filter screen movably arranged on the filter screen bracket. The water supply system includes a water tank, a water pump, and pipelines. The water tank is connected to the water receiving tray of the air conditioner heat exchanger. The water pump is arranged between the water tank and the water receiving tray. The pipelines are connected between the water tank and the spraying device. The water supply system extracts the condensed water in the water receiving tray to supply water to the spraying device, and the spraying device can clean the filter net.

[0003] The problems existing in the existing such air conditioner are that it is easy to generate noise when using a water pump to extract condensed water, which affects the user experience; and the operation of the water pump requires additional electricity, increasing the energy consumption of the air conditioning system. Especially in the case of long-term operation, it will increase the overall energy cost. Summary of the Invention

[0004] The filter screen self-cleaning structure provided by the first object of the present invention includes a main body component and a filter screen. The main body component is provided with an air inlet, a water receiving tray, and a heat exchanger installation position. The air inlet is communicated with the heat exchanger installation position. The heat exchanger installation position is located above the water receiving tray. The filter screen is arranged between the air inlet and the heat exchanger installation position; it further includes a water absorbing member and a water accumulation box; the filter screen and / or the main body component is provided with a connecting structure, and the water absorbing member is connected to the connecting structure; the water accumulation box is connected to the filter screen or the main body component; the water accumulation box includes a water inlet and a water outlet. The lower end of the water absorbing member is used as the water absorbing end, and the upper end of the water absorbing member is used as the water discharging end. The water absorbing end is arranged in the water receiving tray, the water discharging end is connected to the water inlet, and the water outlet is located above the filter screen.

[0005] As can be seen from the above solution, in this setting, the water absorbing member can suck the condensed water in the water receiving tray into the water accumulation box at the top of the air conditioner. When the water in the water accumulation box accumulates to a certain extent, it flows out from the water outlet and flows down along the filter screen. The process can wash away the dust and oil stains on the filter screen. Its structure is simple. Only by regularly cleaning or replacing the water absorbing rod can the automatic cleaning effect of the filter screen be ensured. There is no need to add power sources such as motors and water pumps, without increasing energy consumption and generating no noise. It not only improves the user experience, saves energy for users, but also conforms to the environmental protection concept.

[0006] A further solution is that the water absorbing rod is a water absorbing rod.

[0007] As can be seen from the above, although a large surface area of the water absorption rod can improve the water absorption effect, since the water absorption rod extends from the water receiving tray below the filter screen to above the filter screen, the larger the area of the water absorption rod, the more it affects the air inlet area and the air intake volume. Therefore, the water absorption rod of the present invention adopts a slender water absorption rod to solve the problem of affecting the air intake volume.

[0008] A further solution is that the bottom of the filter screen is arranged directly above the water receiving tray.

[0009] As can be seen from the above, if the waste water after cleaning the filter screen drips to other positions inside the air conditioner, it will become a water accumulation point that is difficult to clean, and will cause odor problems and air flow quality problems. Therefore, the present invention improves the position of the bottom of the filter screen. The bottom of the filter screen is arranged directly above the water receiving tray. Specifically, the position of the bottom of the filter screen can be adjusted, or the water receiving tray can be enlarged to achieve this. In this setting, the waste water dripping from the filter screen will be recycled by the water receiving tray again, avoiding the above-mentioned odor problems and air flow quality problems.

[0010] A further solution is that the filter screen is provided with ribs and a mesh part. At least two ribs are arranged at intervals along the width direction of the air conditioner, and the mesh part is located between two adjacent ribs; the connecting structure is arranged on the ribs.

[0011] As can be seen from the above, the ribs not only have higher strength to connect and support the water absorption rod, and the ribs are parts on the filter screen that do not generate air intake volume. With the water absorption rod arranged along the ribs, the addition of the water absorption rod will not affect the air intake volume of the air conditioner.

[0012] A further solution is that both the filter screen and the water absorption rod bend and extend downward from their upper ends to their lower ends; on the ribs, the only connecting structure is connected to the lower part of the water absorption rod.

[0013] As can be seen from the above, in this setting, the water absorption rod is firmly fixed on the ribs of the filter screen and extends along a curve close to the ribs. In this setting, since the water absorption rod is close enough to the ribs, even if the water absorption rod is added, the adjustment amount inside the air conditioner body is small or no adjustment is required, reducing the amount of modification and the design difficulty.

[0014] Another further solution is that at least two connecting structures are arranged along the ribs, and the water absorption rod is connected to multiple connecting structures on the same rib to extend along the rib.

[0015] As can be seen from the above, at least two connecting structures are arranged on one rib to be connected to the corresponding water absorption rod to ensure that the water absorption rod is more firmly fixed.

[0016] A further solution is that it includes multiple water absorption rods, and each water absorption rod is connected to a corresponding rib.

[0017] As can be seen from the above, under this setting, the water absorption efficiency can be doubled without affecting the air intake volume.

[0018] A further solution is that the filter screen is detachably arranged; the water accumulation box is connected to the main body assembly, and the water accumulation box is located above the upper part of the filter screen and is spaced from the upper part of the filter screen.

[0019] As can be seen from the above, since the filter screen is a detachable and replaceable component, therefore, the influence of the water accumulation box close to the filter screen on the disassembly and assembly of the filter screen also needs to be considered. For this reason, the water accumulation box is located above the upper part of the filter screen and is spaced from the upper part of the filter screen. For example, the water accumulation box is arranged close to the air inlet assembly to ensure that enough space is reserved for easy disassembly and assembly of the filter screen; in addition, the distance between the water outlet of the water accumulation box and the filter screen can also be increased to increase the kinetic energy of the water flow and have a better flushing and cleaning effect.

[0020] Another further solution is that the connection structure includes a buckle, a strap or an adhesive structure.

[0021] As can be seen from the above, the above connection structures are all existing technologies and are easy to set. Among them, forming a "C"-shaped buckle on the rib of the filter screen reduces the production process and also reduces the installation difficulty.

[0022] The air conditioner provided by the second object of the present invention includes the above-mentioned filter screen self-cleaning structure.

[0023] As can be seen from the above solution, a water absorption rod is arranged in the air conditioner. The water absorption rod can suck the condensed water in the water receiving tray to the water accumulation box at the top of the air conditioner. When the water in the water accumulation box accumulates to a certain extent, it flows out from the water outlet and flows down along the filter screen. The process can wash off the dust and oil on the filter screen. Its structure is simple. Only by regularly cleaning or replacing the water absorption rod can the automatic cleaning effect of the filter screen be ensured. There is no need to add power sources such as motors and water pumps, which does not increase energy consumption and does not generate noise. It not only improves the user experience, saves energy for users, but also conforms to the environmental protection concept. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the first embodiment of the air conditioner of the present invention.

[0025] Figure 2 It is a schematic diagram of the filter screen of the first embodiment of the air conditioner of the present invention.

[0026] Figure 3 It is a schematic diagram of the filter screen of the second embodiment of the air conditioner of the present invention.

[0027] Figure 4 It is a schematic diagram of the filter screen of the third embodiment of the air conditioner of the present invention.

[0028] Figure 5 is Figure 2 an enlarged view of part A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] First Embodiment of Air Conditioner Refer to Figure 1 , the air conditioner of this embodiment includes an indoor unit, which is a wall-mounted unit. The wall-mounted unit includes a main body assembly 1, a filter screen 2, a heat exchanger 5, and a blower (not labeled). The main body assembly 1 includes a housing, a frame 120, an air inlet assembly 11, an air outlet assembly, etc. that an existing wall-mounted unit has. Among them, a blower position and a water receiving tray 12 are provided on the frame 120, and the blower is arranged in the blower position; the main body assembly 1 is also provided with a heat exchanger installation position 50 directly above the water receiving tray 12, and the heat exchanger 5 is arranged in the heat exchanger installation position 50; an air inlet 10 is provided at the top of the main body assembly 1, and the air inlet assembly 11 is arranged at the air inlet 10. The air inlet assembly 11 mainly includes an air inlet grille assembly; the filter screen 2 is detachably installed between the air inlet 10 and the heat exchanger installation position 50, and the filter screen 2 bends and extends downward from its upper end to its lower end, so as to block the heat exchanger 5 from above and in front of the heat exchanger 5 for air inlet filtration, as Figure 1 shown. The up and down directions in the figure are consistent with the up and down directions in the installation state of the wall-mounted unit. The left side in the figure is the front side of the wall-mounted unit, and the right side in the figure is the back side of the wall-mounted unit. In addition, the lower part of the front side of the main body assembly 1 ( Figure 1 the lower left corner shown) is provided with an air outlet, and the air outlet assembly is arranged at the air outlet. The air outlet assembly includes guide vanes and related driving mechanisms.

[0030] Compared with the existing wall-mounted unit, this embodiment also includes a water absorption rod 3 and a water accumulation box 4. The water absorption rod 3 is a water absorption member of the present invention. The air conditioner of this embodiment includes a filter screen self-cleaning structure, and the filter screen self-cleaning structure includes the main body assembly 1, the filter screen 2, and the additionally provided water absorption rod 3 and water accumulation box 4.

[0031] The water absorption rod 3 is made of a mixture of superabsorbent polymer (SAP) and cotton fiber, so that the water absorption rod has both good water absorption and certain structural strength. In this embodiment, the water absorption rod 3 bends and extends downward from its upper end 32 to its lower end 31. Among them, preferably, the cross section of the water absorption rod 3 is circular, which is easy to process and install. Among them, preferably, the water absorption rod 3 can be set to have a curvature similar to that of the filter screen 2. Of course, in some embodiments, the water absorption rod 3 has the ability to deform and has a certain plasticity, and can be bent again according to the curvature of the filter screen 2 at the installation site.

[0032] The water accumulation box 4 includes a water inlet 41 and a water outlet 42. Among them, the position of the water inlet 41 is higher than that of the water outlet 42. In this embodiment, the water inlet 41 and the water outlet 42 are respectively arranged on the front and rear sides of the water accumulation box 4. Among them, the inner contour of the water inlet 41 is consistent with the outer contour of the upper end 32 of the water absorption rod 3. In one embodiment, the water outlet 42 can be set as a circular water outlet hole. In this setting, a plurality of water outlets 42 need to be arranged at intervals along the width direction of the wall-mounted machine ( Figure 1 the direction shown on the paper surface of the figure), and the width direction of the above-mentioned wall-mounted machine is also the width direction of the filter screen 2 of the present invention. In another embodiment, the water outlet 42 can be set as a long hole along the width direction of the wall-mounted machine.

[0033] In this embodiment, the water accumulation box 4 is installed on the lower side of the air inlet assembly 11 and is directly above the upper part 21 of the filter screen 2. And, vertically, there is a certain interval between the water accumulation box 4 and the upper part 21 of the filter screen 2.

[0034] See Figure 1 、 Figure 2 and Figure 5 , the filter screen 2 has an outer side facing away from the heat exchanger installation position 50. A buckle 23 for fixing the water absorption rod 3 is arranged on the outer side of the filter screen 2, and the buckle 23 is the connection structure of the present invention. Further, the filter screen 2 includes a frame and a mesh part 22 installed on the frame. The frame includes vertical ribs and horizontal ribs. The vertical ribs are the ribs 21 of the present invention. In this embodiment, the filter screen 2 includes four ribs 21 arranged at intervals along the width direction, and a buckle 23 is arranged on the outer side of each rib 21. Among them, the buckle 23 is located at the lower part 22 of the filter screen 2. The buckle 23 is provided with a buckle position in an approximate "C" shape and the buckle position penetrates along the extending direction of the filter screen 2. The extending direction of the filter screen 2 is the curve direction shown by the projection of its width direction. In this embodiment, the penetrating direction of the buckle position is close to the vertical direction. Among them, the filter screen 2 includes an upper part 21 and a lower part 22 arranged oppositely in the vertical direction. The demarcation line between the upper part 21 and the lower part 22 is located at about half of the total height of the filter screen 2 in the vertical direction.

[0035] See Figure 1 and Figure 2 , the lower end 31 of the water absorption rod 3 serves as the water absorption end, the upper end 32 of the water absorption rod 3 serves as the drainage end. The lower end 31 of the water absorption rod 3 is arranged in the water receiving tray 12 and forms a certain interval with the bottom surface of the water receiving tray 12. The upper end 32 of the water absorption rod 3 is connected to the water inlet 41 of the water accumulation box 4. Further, the upper end 32 extends into the water accumulation box 4 from the water inlet 41. Additionally, the lower part of the water absorption rod 3 is buckled in the buckle position of the buckle 23 and the lower part and most of the upper part of the water absorption rod 3 are bent and extended along the filter screen 2. This embodiment includes four water absorption rods 3, and each water absorption rod 3 is connected to a corresponding rib 21.

[0036] Generally, the water receiving tray is mainly used to receive the condensed water dripping from the heat exchanger. The area of the water receiving tray is slightly larger than that of the heat exchanger to meet the demand for receiving the condensed water of the heat exchanger. In the present invention, in addition to the demand for receiving condensed water, the water receiving tray 12 also needs to be used to receive the waste water from the cleaning filter screen and supply water to the water absorbing rod 3. Therefore, compared with the conventional water receiving tray, the area of the water receiving tray of the present invention is larger. In this embodiment, in the front-back direction of the air conditioner, the size of the water receiving tray 12 is larger. In particular, the water receiving tray 12 extends towards the front side of the air conditioner to increase the size. At this time, the front part of the water receiving tray 12 is directly below the lower end 31 of the water receiving tray 3 and directly below the lower end of the filter screen 2, and the rear part of the water receiving tray 12 is directly below the heat exchanger 5.

[0037] After the heat exchanger 5 works and generates condensed water, which drips into the water receiving tray 12, the water absorbing rod 3 can suck the condensed water in the water receiving tray 12 into the water accumulation box 4 at the top of the air conditioner. When the water in the water accumulation box 4 accumulates to a certain extent, it flows out from the water outlet 42 and flows down along the filter screen 2. This process can wash the dust and oil on the filter screen 2. Its structure is simple. Only by regularly cleaning or replacing the water absorbing rod 3 can the automatic cleaning effect of the filter screen 2 be ensured. There is no need to add power sources such as motors and water pumps, which does not increase energy consumption and does not generate noise. It not only improves the user experience, saves energy for users, but also conforms to the environmental protection concept.

[0038] In addition, although water absorbing parts with a large area such as water absorbing sheets can improve the water absorbing efficiency, since the water absorbing rod 3 extends from the water receiving tray 12 below the filter screen 2 to above the filter screen 2, a large-area water absorbing sheet will cause blockage and reduce the air inlet area, affecting the air inlet volume. Therefore, the water absorbing rod 3 of the present invention adopts a slender water absorbing rod 3 to solve the problem of affecting the air inlet volume. Further, and the rib 21 is a part of the filter screen 2 that does not generate air inlet volume. When the water absorbing rod 3 is arranged along the rib 21, the addition of the water absorbing rod 3 will not affect the air inlet volume of the air conditioner. And in this setting, the water absorbing rod 3 is firmly fixed on the rib 21 of the filter screen 2 and extends along a curve close to the rib 21. In this setting, since the water absorbing rod 3 is close enough to the rib 21, even if the water absorbing rod 3 is added, due to the small occupied position of the water absorbing rod 3, the adjustment amount inside the air conditioner body is small or no adjustment is required, reducing the amount of modification and the design difficulty.

[0039] Second Embodiment of the Air Conditioner See Figure 3, in this embodiment, the connection structure is provided on the body component, and the water absorption rod is connected to the body component. A first buckle 621 is provided on the lower side of the air inlet component 62. The first buckle 621 can be provided on the lower side of the rib of the air inlet component 62. The upper part 611 of the water absorption rod 61 is buckled with the first buckle 621, and / or, a second buckle 631 is provided on the front outer shell 63 of the body component, and the lower part 612 of the water absorption rod 61 is buckled with the second buckle 631. In this embodiment, the water absorption rod 61 does not need to be fixedly installed by a filter screen.

[0040] The third embodiment of the air conditioner See Figure 4 , in this embodiment, the water accumulation box 71 is fixedly connected to the filter screen 72. The water accumulation box 71 is connected to the upper end of the filter screen 72. In this setting, the water outlet 712 and the water inlet 711 of the water accumulation box 71 are both located on the front side of the water accumulation box 71. In this way, preferably, the water absorption rod 3 is fixedly connected to the filter screen 72.

[0041] In other embodiments, the water absorption member can be a water absorption sheet, but in this way, the water absorption member needs to avoid the air inlet as much as possible.

[0042] In other embodiments, at least two connection structures are arranged along the rib, and the water absorption rod is connected to multiple connection structures on the same rib to extend along the rib.

[0043] In other embodiments, connection structures are provided on both the filter screen and the main body component. The water absorption member is connected to the filter screen through the connection structure, and the water absorption member is also connected to the main body component through the connection structure.

[0044] Finally, it should be emphasized that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A filter self-cleaning structure, comprising a main body assembly and a filter, wherein the main body assembly is provided with an air inlet, a water receiving tray and a heat exchanger mounting position, wherein the air inlet is communicated with the heat exchanger mounting position, the heat exchanger mounting position is located above the water receiving tray, and the filter is arranged between the air inlet and the heat exchanger mounting position; Features: It also includes a water absorbing member and a water collection box; The filter screen and / or the main body component is provided with a connection structure, and the water absorbing member is connected to the connection structure; The water collection box is connected to the filter screen, or the water collection box is connected to the main body component; The water collection box includes a water inlet and a water outlet, the lower end of the water absorbing member serves as a water absorbing end, and the upper end of the water absorbing member serves as a drainage end. The water absorbing end is arranged in the water receiving tray, the drainage end is connected to the water inlet, and the water outlet is located above the filter.

2. The filter self-cleaning structure according to claim 1, characterized in that: The water absorbing member is a water absorbing rod.

3. The filter self-cleaning structure according to claim 2, characterized in that: The bottom of the filter screen is arranged just above the water receiving tray.

4. The filter self-cleaning structure according to claim 3, characterized in that: The filter screen is provided with ribs and a mesh portion, at least two of the ribs are arranged at intervals along the width direction of the filter screen, and the mesh portion is located between two adjacent ribs; The connecting structure is arranged on the ribs.

5. The filter self-cleaning structure according to claim 4, characterized in that: The filter screen and the water absorbing rod are bent downward from their upper ends to extend to their lower ends; On one of the ribs, the only connecting structure is connected to the lower part of the water absorbing rod.

6. The filter self-cleaning structure according to claim 4, characterized in that: At least two of the connection structures are arranged along the rib, and the water absorbing rod is connected to a plurality of the connection structures on the same rib to extend along the rib.

7. The filter self-cleaning structure according to claim 4, characterized in that: It comprises a plurality of water absorbing rods, each of which is connected to a corresponding rib.

8. The filter self-cleaning structure according to any one of claims 1 to 7, characterized in that: The filter screen is detachable; The water collection box is connected to the main body assembly, and the water collection box is located above the upper part of the filter screen and is spaced apart from the upper part of the filter screen.

9. The filter screen self-cleaning structure according to any one of claims 1 to 7, characterized in that: The connection structure includes a buckle, a binding strap or an adhesive structure.

10. An air conditioner, characterized in that The invention comprises the filter self-cleaning structure as described in any one of claims 1 to 9.

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