Filter frame with condensate diversion function and filter containing the filter frame

Abstract

This invention relates to the field of air filtration equipment technology. Addressing the problem that cold filter frames easily lead to condensation and dripping into the indoor space, this invention discloses a filter frame with condensation drainage function and a filter containing this filter frame. The filter frame includes a fixed frame formed by four side plates connected end-to-end. The side plates have protruding flanges on both sides along their width. A guide plate protrudes from the outer side of the fixed frame. The guide plate is inclined, and the side of the guide plate away from the inclined side is flush with the inner wall of one of the flanges along the width of the filter frame. The thickness of the guide plate is less than the width of the flange protruding from the side plate. A water storage device for storing condensation is provided on the outer side of the side plate, and the water storage device is connected to the end of the inclined surface with the lower horizontal height. By guiding the condensation on the outer wall of the filter frame to the water storage device through the guide plate, the dripping of condensation from the filter frame is reduced.

Description

Technical Field

[0001] This invention relates to the field of air filtration equipment technology, and in particular to a filter frame with a condensate drainage function and a filter containing the filter frame. Background Technology

[0002] An air filter is a device that can adsorb, decompose, or transform various air pollutants (generally including PM2.5, dust, pollen, etc.) to effectively improve air cleanliness.

[0003] When air filters are used in air conditioning, the cold air blown out of the air conditioner first passes through the air filter and then flows out. However, because the air flowing into the air filter is cold, the temperature of the filter frame drops. When the cold filter frame comes into contact with the warmer indoor air, condensation easily forms on the outer wall of the filter frame. After a period of time, the condensation adhering to the outer wall of the filter frame accumulates and eventually drips from the filter frame into the indoor space. This condensation may drip onto people's heads, affecting their lives. Therefore, there is still room for improvement. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a filter frame with a function of guiding condensate water and a filter containing the filter frame.

[0005] In a first aspect, the present invention provides a filter frame with a condensate drainage function, employing the following technical solution:

[0006] A filter frame with condensate drainage function includes a fixed frame, which is formed by four side plates connected end to end. The side plates have flanges protruding on both sides along the width direction. The outer side of the fixed frame has a guide plate protruding from each side. The guide plate is inclined, and the side of the guide plate away from the inclined side is flush with the inner wall of one of the flanges along the width direction of the filter frame. The thickness of the guide plate is less than the width of the flange protruding from the side plate. The outer side of the side plate is provided with a water storage device for storing condensate. The water storage device is connected to the end of the inclined surface with the lower horizontal height.

[0007] Using the above technical solution, when the filter frame is applied in the air conditioning field, the cold air blown out by the air conditioner will first flow to the filter for filtration, and then flow into the room. Because the cold air will reduce the temperature of the filter frame on the filter, condensation will be generated when the hot indoor air passes through the outer wall of the filter frame. Through the setting of the guide plate, when condensation occurs on the outer wall of the filter frame, the condensation will flow along the outer wall of the filter frame to the guide plate under the action of gravity, and then flow along the guide plate to the water storage container. This allows the condensation on the outer wall of the filter frame to flow to the water storage container instead of dripping into the room. This helps to reduce the situation where condensation dripping from the filter frame can easily fall onto people's heads and affect their lives, thus improving the living environment.

[0008] The invention is further configured such that: the guide plate is connected end to end and arranged around the outer side wall of the fixed frame, and the water storage component is connected to the end of the inclined surface at the lowest horizontal height.

[0009] By adopting the above technical solution, the condensate on the four outer walls of the fixed frame can flow along the slope of the guide plate to the lowest point of the guide plate and finally flow to the water storage device. This allows the condensate to be collected in one place, thus enabling unified treatment of the condensate. This reduces the difficulty of collecting condensate and consequently reduces the difficulty of setting up the water storage device.

[0010] The invention is further configured such that: the guide plate is broken at the lowest horizontal position with a notch, the water storage component is a rubber bag, the opening of the water storage component is directly opposite the notch of the guide plate, and the guide plate is provided with a fixing component for fixing the water storage component.

[0011] Using the above technical solution, the rubber bag is fixed to the notch of the guide plate by fasteners. This allows the condensate placed on the outer wall of the fixed frame to flow towards the rubber bag through the guiding effect of the inclined surface of the guide plate. After a period of time, more and more water accumulates in the rubber bag. Since filters used in air conditioning systems are usually placed on the ceiling, the bottom of the rubber bag extends towards the room, making it protrude from the ceiling and easy to spot. When people look up and can see the rubber bag, they can promptly remove it, clean the water inside, and then re-fix the rubber bag to the notch using the fasteners, restoring the filter's water storage function. The rubber bag serves two purposes: firstly, it stores condensate, reducing the frequency of condensate cleaning; secondly, the rubber bag is elastic, and when there is too much water inside, the bottom of the rubber bag will extend downwards, promptly reminding people to clean the condensate.

[0012] The present invention is further configured such that the fixing member is a hook, and the fixing member is fixedly connected to the side wall at the notch of the guide plate.

[0013] By adopting the above technical solution, the opening of the water storage component can be fixed at the lowest point of the guide plate by setting the fixing component as a hook. When it is necessary to clean the water in the water storage component, simply lift the opening of the water storage component upwards, so that the opening of the water storage component naturally contracts and the water storage component can be removed. When it is necessary to install the water storage component, simply open the opening of the water storage component, place the opening of the water storage component at the fixing component, and then release the opening of the water storage component, so that the opening of the water storage component contracts and abuts against the hook, so that the water storage component is stable at the notch of the guide plate, making the installation or removal of the water storage component simple and convenient.

[0014] Secondly, this application provides a filter, which adopts the following technical solution:

[0015] A filter includes a filter frame with the function of guiding condensate water as described above, and a filter element placed inside the filter frame.

[0016] By adopting the above technical solution, a filter is formed by installing the filter element inside the filter frame, and then installing the filter at the air outlet of the air conditioner on the ceiling. When the air conditioner is working, the cold air blown out by the air conditioner will first flow through the filter, causing the temperature of the filter frame to drop. When the low-temperature filter frame encounters the high-temperature indoor air, condensation easily forms on the outer wall of the filter frame. The condensation drips onto the guide plate and eventually flows along the inclined surface of the guide plate to the water storage container. This helps to reduce the situation where condensation drips directly from the outer wall of the filter frame onto the indoor floor or people when the filter is used in the air conditioning field, which would affect the indoor environment and people's comfort. This makes the filter more suitable for use in the air conditioning field.

[0017] Preferably, the filter element includes a chemically activated carbon layer and a high-efficiency filter layer arranged sequentially in the direction of airflow within a fixed frame. Both the chemically activated carbon layer and the high-efficiency filter layer cover the vertical cross-section of the fixed frame, and a gap of 100mm-150mm is left between the chemically activated carbon layer and the high-efficiency filter layer.

[0018] By adopting the above technical solution, and by setting both the chemically activated layer and the high-efficiency filter layer in the same fixed frame, only one filter is needed to achieve both activated carbon filtration and high-efficiency filtration. This helps to reduce the need for two filters, which would result in excessive space occupied by the filters.

[0019] If the distance between the activated carbon layer and the high-efficiency filter layer is too small, air may be directly discharged to the air outlet through the permeable channels of the activated carbon, resulting in poor filtration. If the distance between the activated carbon layer and the high-efficiency filter layer is too large, the air flow rate may be too slow when it reaches the high-efficiency filter layer, making it difficult to pass through the filter layer before being discharged. Therefore, by setting the distance between the activated carbon layer and the high-efficiency filter layer to 100-150mm, the air flowing from the air inlet to the space between the activated carbon layer and the high-efficiency filter layer is blocked by the high-efficiency filter layer, forming static pressure. This facilitates the air to flow back to the activated carbon layer, increases the residence time of the air in the activated carbon layer, and reduces the situation where air is directly discharged through the permeable channels of the activated carbon layer. In this way, pollutants in the air are better adsorbed by the activated carbon layer, thus improving the filtration effect of the activated carbon layer.

[0020] In addition, by placing the high-efficiency filter layer after the chemical activated carbon layer, the carbon powder that comes off with the air after passing through the activated carbon filter layer is better filtered out by the high-efficiency filter layer. This helps to reduce the situation where the air directly carries the carbon powder out through the through-channel of the activated carbon filter layer, and thus helps to improve the filtration effect of the filter.

[0021] The present invention is further configured such that: the chemically activated carbon layer is composed of several horizontal layers and folded layers, the horizontal layers and folded layers are spaced apart, and the chemically activated carbon layer is continuous along the airflow direction.

[0022] By adopting the above technical solution, the folded layer helps to form a stable triangular structure with the horizontal layer, which in turn improves the structural stability of the chemical activated carbon filter layer, making the chemical activated carbon layer more reliable and durable. At the same time, the folded layer also increases the contact area between the air and the folded layer when the air passes through the chemical activated carbon filter layer, which helps the chemical activated carbon layer to better adsorb particulate matter in the air, thus making the filter more effective.

[0023] The present invention is further configured such that the height of the folded layer is 5-10 mm.

[0024] Using the above technical solution, if the height of the folded layer is too high or too low, it may affect the strength of the activated carbon layer, making it more prone to deformation or even damage under pressure. Setting the folded layer height to 5-10mm allows for better control of the number of triangular pores on the activated carbon layer. This provides a more suitable contact area between the activated carbon layer and the air, while also improving the support effect of the folded layer. This results in higher strength for the activated carbon layer, making it less prone to deformation or damage under pressure. Consequently, the activated carbon layer can more effectively adsorb particulate matter from the air, improving its filtration efficiency and extending its service life.

[0025] The present invention is further configured such that the distance between the highest points of adjacent folds in the folded layer is 3-5 mm.

[0026] Using the above technical solution, if the distance between the highest points of adjacent pleats in the folded layer is too small, the channels of the triangular pores on the chemically activated carbon layer may become smaller, potentially reducing airflow velocity and preventing air from passing smoothly through the high-efficiency filter layer. Conversely, if the distance between the highest points of adjacent pleats in the folded layer is too large, air may directly penetrate the chemically activated carbon filter layer without sufficient contact, resulting in poor filtration. Setting the distance between the highest points of adjacent pleats in the folded layer to 3-5 mm allows for better control of airflow velocity. This ensures that the air maintains a certain flow velocity upon reaching the high-efficiency filter layer, promotes static pressure formation and air recirculation, facilitates smoother passage and discharge of air through the high-efficiency filter layer, and ensures sufficient contact between the air and the chemically activated carbon layer, allowing for more complete adsorption of pollutants and further improving the filtration effect.

[0027] In summary, the present invention has the following beneficial effects:

[0028] 1. The design of the baffle plate, water storage component, and fixing component helps to reduce the dripping of condensate on the outer wall of the fixing frame, which helps to improve the living environment.

[0029] 2. The inclusion of a chemically activated carbon layer and a high-efficiency filter layer allows for better adsorption of air pollutants by the filter element, thus improving the filter's filtration efficiency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of a filter frame with a function of guiding condensate flow.

[0031] Figure 2 This is a schematic diagram of the overall structure of the filter;

[0032] Figure 3 This is a schematic diagram of the internal structure of the filter.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Fixed frame; 11. Side plate; 12. Edge guard; 13. Flow guide plate; 14. Baffle plate; 2. Water storage component; 3. First protective net; 4. Chemical activated carbon layer; 41. Horizontal layer; 42. Folded layer; 5. High-efficiency filter layer. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and Embodiments 1 and 2.

[0036] Example 1:

[0037] A filter frame with condensate diversion function, see [link / reference] Figure 1 The fixed frame 1 is formed by connecting four side plates 11 end to end. The fixed frame 1 is square in shape. All four side plates 11 are long plates. Both sides of the side plates 11 have protruding baffles 12 along the width direction. The outer walls of the side plates 11 also have protruding guide plates 13. The outer walls of the fixed frame 1 can also be detachably connected to a water storage component 2 for storing condensate.

[0038] See Figure 1 The length of the baffle 12 is consistent with the length direction of the side plate 11, and the length of the baffle 12 is consistent with the length of the side plate 11. The baffle 12 is rectangular, and part of the baffle 12 protrudes to the inside of the side plate 11 and part of the side plate 11 protrudes to the outside of the side plate 11.

[0039] See Figure 1 The guide plate 13 is arranged from the center of the side plate 11 on one side of the fixed frame 1, facing opposite directions and gradually tilting downwards along the direction where the side plates 11 are connected end to end. The guide plate 13 surrounds the outer wall of the fixed frame 1 until it reaches the center of the side plate 11 on the opposite side. The side of the guide plate 13 away from the inclined surface is fixedly connected to the inner side of the baffle 12.

[0040] See Figure 1 The guide plate 13 is broken at the lowest horizontal position of the inclined surface with a notch. The water storage component 2 is a rubber bag. The outer wall of the guide plate 13 near the notch is provided with a fixing component for fixing the water storage component 2. The fixing component is a hook. There are two hooks. The two hooks are located on the outer walls of the guide plate 13 near the notch on both sides. The side wall of the opening of the water storage component 2 has through holes near the hooks. The water storage component 2 is fixed by passing the hooks through the through holes of the water storage component 2.

[0041] The implementation principle of Example 1 is as follows:

[0042] When the filter frame is used in the air conditioning field, it is placed on the ceiling near the air outlet of the air conditioner. When the cold filter frame encounters hot air, condensation will appear on the outer wall of the filter frame. The condensation will flow onto the guide plate 13 under the action of gravity. Since the guide plate 13 is inclined downward and surrounds the outer wall of the filter frame, the condensation flows along the inclined surface of the guide plate 13 to the notch of the guide plate 13, and finally flows to the rubber bag.

[0043] The condensate flows into the rubber bag, and after a period of time, the bottom of the bag extends towards the interior, protruding from the ceiling and making it more visible. When people can see the bag, they pull the opening to detach it from the hook, remove the bag, and clean out the condensate. Then, they open the bag and engage it with the hook, securing the bag to the outer wall of the guide plate 13 near the notch. The guide plate 13 and the rubber bag design prevent condensate from dripping into the interior space due to gravity, thus avoiding the possibility of wetting the floor or dripping onto people, improving the living environment.

[0044] The protruding edge 12 on the outside of the fixed frame 1 helps to more accurately determine the size of the space reserved for installing the filter, so that the filter can better match the size of the reserved space and the filter can be installed more easily.

[0045] Example 2:

[0046] A filter, see Figure 2 as well as Figure 3 The filter includes the aforementioned filter frame with condensate diversion function and the filter element placed inside the filter frame. The filter element includes a first protective net 3, a chemically activated carbon layer, a high-efficiency filter layer 5, and a second protective net arranged sequentially along the air flow direction inside the fixed frame 1. The first protective net 3, the chemically activated carbon layer, the high-efficiency filter layer 5, and the second protective net all cover the cross-section of the air flow channel inside the fixed frame 1. A baffle 14 protrudes from the middle position along the width direction on the inner side of the four side plates 11.

[0047] See Figure 2 as well as Figure 3 The first protective net 3 and the second protective net are respectively fixed to the side rails 12 on both sides of the side plate 11 along the width direction. The first protective net 3 and the second protective net are both located on the side of the side rail 12 that protrudes towards the inside of the side plate 11 and are placed on the side of the side rail 12 that is close to the side plate 11 along the thickness direction. The first protective net 3 and the second protective net are both fixed to the side rails 12 with sealant.

[0048] See Figure 2as well as Figure 3 The chemically activated carbon layer consists of several horizontal layers 41 and folded layers 42, with the horizontal layers 41 and folded layers 42 spaced apart. That is, along a direction perpendicular to the airflow direction, the first layer is a horizontal layer 41, the second layer is a folded layer 42, the third layer is a horizontal layer 41, the fourth layer is a folded layer 42, and so on, with the last layer being a horizontal layer 41. The folded corners of the folded layers 42 are fixedly connected to the adjacent two horizontal layers 41, meaning the chemically activated carbon layer is continuous along the airflow direction. The height of the folded layers 42 is 5-10 mm. In this embodiment, the height of the folded layers 42 is 7 mm. In other embodiments, the height of the folded layers can also be 5 mm, 5.1 mm, 5.2 mm, 5.3 mm, 5.4 mm, 6 mm, 8 mm, 9 mm, 10 mm, etc., which will not be exhaustively listed here. The spacing between the highest points of adjacent folds in the folded layer 42 is 3-5 mm. In this embodiment, the spacing between the highest points of adjacent folds in the folded layer 42 is 4 mm. In other embodiments, the spacing between the highest points of adjacent folds in the folded layer 42 can also be 3 mm, 3.1 mm, 3.2 mm, 3.3 mm, 3.4 mm, 3.5 mm, 4.5 mm, 5 mm, etc., which will not be listed here. By forming a chemically activated carbon layer by interspersing several horizontal layers 41 and folded layers 42, it is beneficial to increase the contact area between the air passing through the chemically activated carbon layer and the chemically activated carbon layer, so that the air filtration effect is better and the folded layer 42 can better play a supporting role, making the chemically activated carbon stronger. Thus, the chemically activated carbon layer is less likely to deform or be damaged under pressure before it is installed in the fixed frame 1. When the chemically activated carbon layer is placed in the fixed frame 1, the chemically activated carbon layer abuts against the first protective net 3 and the baffle plate 14 on both sides along the air flow direction, respectively.

[0049] See Figure 2 as well as Figure 3 The high-efficiency filter layer 5 is located between the baffle plate 14 and the second protective mesh. The distance between the high-efficiency filter layer 5 and the baffle plate 14 is 100mm-150mm. In this embodiment, the distance between the high-efficiency filter layer 5 and the baffle plate 14 is 120mm. In other embodiments, the distance between the high-efficiency filter layer 5 and the baffle plate 14 can also be 100mm, 100.1mm, 100.2mm, 101mm, 105mm, 110mm, 125mm, 130mm, 140mm, 150mm, etc., which will not be listed exhaustively here. The high-efficiency filter layer 5 is fixed to the inner wall of the side plate 11 with sealant.

[0050] See Figure 3 The length of the partition plate 14 is the same as the length of the side plate 11, and the protrusion height of the partition plate 14 is about one-fifth of the width of the side plate 11.

[0051] The implementation principle of Example 2 is as follows:

[0052] When air purification is required, air enters the filter through the air inlet, passes through the first protective mesh 3, and then through the through-channel of the chemically activated carbon layer. It reaches the gap between the chemically activated carbon layer and the high-efficiency filter layer 5. Due to the obstruction of the high-efficiency filter layer 5, static pressure is formed, and the air flows back into the chemically activated carbon layer, constantly swirling, so that the air particles are more completely adsorbed by the chemically activated carbon layer. Finally, driven by the continuously flowing air, it passes through the high-efficiency filter layer 5, so that the carbon powder brought down from the chemically activated carbon layer in the air is also filtered out by the high-efficiency filter layer 5 at the same time. Thus, chemically activated carbon filtration and high-efficiency filtration can be carried out in the same filter, which is beneficial to improve the filtration effect of the filter while saving the space occupied by the filter, making the filter specifications more compatible with the reserved installation space.

[0053] By controlling the spacing between the chemically activated carbon layer and the high-efficiency filter layer 5, and by setting specific specifications for the through-channels of the chemically activated carbon layer, the height of the folded layer 42 of the chemically activated carbon layer, and the spacing between the highest points of adjacent folds, air entering the filter can directly pass through the through-channels of the chemically activated carbon layer to reach the high-efficiency filter layer 5. This allows the air to maintain a certain flow rate after reaching the high-efficiency filter layer 5, reducing the possibility of insufficient airflow due to obstruction by the chemically activated carbon layer. Furthermore, the specific spacing between the chemically activated carbon layer and the high-efficiency filter layer 5 allows the air reaching the gap between them to form static pressure and flow back into the chemically activated carbon layer for further adsorption. This prevents the air from being unable to fully contact the chemically activated carbon layer due to direct passage through the through-channels, thus affecting the adsorption and filtration effects. This approach further enhances the filter's filtration efficiency and facilitates smoother airflow through the filter.

[0054] By setting the chemical activated carbon layer to consist of several horizontal layers 41 and folded layers 42, with the horizontal layers 41 and folded layers 42 spaced apart, the folded layers 42 and the horizontal layers 41 form a stable triangular structure. This helps to improve the structural stability of the chemical activated carbon filter layer, making the chemical activated carbon layer more reliable and durable. At the same time, it also helps to increase the contact area between the air and the folded layers 42 when the air passes through the chemical activated carbon filter layer, thus helping the chemical activated carbon layer to better adsorb particulate matter in the air, resulting in a better filtration effect of the filter.

[0055] By setting up the first protective net 3 and the second protective net, it is beneficial to better protect the chemical activated carbon layer and the high-efficiency filter layer 5, making it less likely that the filter will be damaged by accidental collisions with other objects during transportation, handling or installation.

[0056] Meanwhile, by setting the first protective net 3 to abut against the edge 12 and bonding the first protective net 3 and the edge 12 with sealant, and the second protective net to abut against the lower baffle and bonding the second protective net and the edge 12 with sealant, the sealing performance of the filter is improved. This helps to reduce the situation where the fixed frame 1 cannot be completely sealed due to processing problems, resulting in air leakage and thus the high-efficiency filter layer 5 cannot achieve the filtration effect. This also helps to reduce the defect rate of filter assembly.

[0057] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A filter, characterized in that: It includes a filter frame with a function of guiding condensate water and a filter element placed inside the filter frame; A filter frame with a condensate diversion function includes a fixed frame (1), which is formed by four side plates (11) connected end to end. The side plates (11) have flanges (12) protruding on both sides along the width direction. The outer side of the fixed frame (1) has a guide plate (13) protruding. The guide plate (13) is inclined, and the side of the guide plate (13) away from the inclined side is flush with the inner wall of one of the flanges (12) along the width direction of the filter frame. The thickness of the guide plate (13) is less than the width of the flange (12) protruding out of the side plate (11). The outer side of the side plate (11) is provided with a water storage device (2) for storing condensate. The water storage device (2) is connected to the end of the inclined surface with a lower horizontal height. The guide plate (13) is connected end to end and is arranged around the outer side wall of the fixed frame (1). The water storage component (2) is connected to the end of the inclined surface at the lowest horizontal height. The guide plate (13) has a notch at the lowest horizontal position. The water storage component (2) is a rubber bag. The opening of the water storage component (2) is directly opposite the notch of the guide plate (13). The guide plate (13) is provided with a fixing component for fixing the water storage component (2). The fixing component is a hook, and the fixing component is fixedly connected to the side wall at the notch of the guide plate (13); The filter element includes a first protective net (3), a chemically activated carbon layer and a high-efficiency filter layer (5) arranged sequentially in the direction of air flow within a fixed frame (1). The chemically activated carbon layer and the high-efficiency filter layer (5) both cover the vertical section of the fixed frame (1), and a gap of 100mm-150mm is left between the chemically activated carbon layer and the high-efficiency filter layer (5). The inner side of each of the four side plates (11) has a baffle plate (14) protruding from the middle position along the width direction; the chemical activated carbon layer is in contact with the first protective net (3) and the baffle plate (14) on both sides along the air flow direction; the distance between the high-efficiency filter layer (5) and the baffle plate (14) is 100mm-150mm.

2. The filter according to claim 1, characterized in that: The chemically activated carbon layer consists of several horizontal layers (41) and folded layers (42), which are spaced apart and are connected in the direction of air flow.

3. A filter according to claim 2, characterized in that: The height of the folded layer (42) is 5-10 mm.

4. A filter according to claim 3, characterized in that: The distance between the highest points of adjacent folds in the folded layer (42) is 3-5 mm.

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