Air handling unit with filter screen convenient to replace

Abstract

The utility model discloses an air handling unit with a filter screen convenient to replace, which relates to the technical field of air handling and comprises a casing, a filter screen, a filter screen, a filter screen and a filter screen. The hollow door is located in the rectangular groove; a baffle is fixedly installed at the rear end of the movable seat, a fixed seat is fixedly installed at the top of the movable seat, a sliding groove is formed in the top of the fixed seat, a sliding block is arranged at the top of the fixed seat, and the sliding block is in sliding connection with the sliding groove. After the hollow door moves to expose the rectangular groove, the sliding frame is pulled to enable the movable seat to move, then the sliding block slides in the sliding groove, and the filter screen can be taken down and replaced, so that the filter screen is relatively inconvenient to take out from the upper part of the shell, and pollutants such as dust on the filter screen possibly fall into the shell; therefore, dust is directly conveyed indoors through the exhaust fan when the unit is used next time, and indoor air quality is affected.

Description

Technical Field

[0001] This utility model relates to the field of air treatment technology, and in particular to an air handling unit with an easy-to-replace filter. Background Technology

[0002] An air handling unit (ALU) is a device used to regulate the temperature, humidity, and cleanliness of indoor air. It includes air heaters, air coolers, and air humidifiers to meet heat and humidity control requirements; air filters to purify the air; a mixing box to regulate fresh and return air; and a silencer to reduce fan noise. All ALUs are equipped with a fan. Depending on the year-round air conditioning requirements, the unit can be configured with an automatic control system connected to a cooling or heating source.

[0003] A search revealed a patent database that discloses a circulating air handling unit with easy-to-replace filter screen (application number: 202320368780.X). This technical solution uses a movable pull ring to move a movable plate and a snap-fit ​​plate, which in turn separates the L-shaped plate from the housing. This facilitates the removal, cleaning, or replacement of the coarse and fine filters inside the circulating air handling unit, enabling continuous use and ensuring high reliability.

[0004] However, this technical solution is relatively inconvenient to operate when removing the coarse or fine filter screen because it is taken directly from the top of the housing. It is also easy for dust and other pollutants on the coarse or fine filter screen to fall into the housing and may be directly transported into the room during the next use, affecting the indoor air quality.

[0005] Therefore, it is necessary to invent an air handling unit with easy-to-replace filters to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide an air handling unit that facilitates filter replacement. By moving the hollow door to the right to expose a rectangular slot, the slide rail is pulled outwards, causing the slide rail to slide outwards through the slide rail slot. Simultaneously, the moving seat and baffle move outwards. When the limiting block on the right side of the baffle contacts the hollow door, the baffle blocks the rectangular slot. Then, the filter is moved outwards, causing the slider fixed at the bottom of the filter to slide outwards in the groove on the fixed seat, allowing the filter to be removed and replaced. However, directly removing the filter from the top of the housing is relatively inconvenient and may cause dust and other contaminants on the filter to fall directly into the housing. This dust, once inside the housing, can be directly vented into the room via the exhaust fan during the next use of the unit, affecting indoor air quality. This invention addresses the problem mentioned in the background art where directly removing the filter from the top of the housing is inconvenient and may cause dust and other contaminants on the filter to fall into the housing, potentially being directly vented into the room during the next use, affecting indoor air quality.

[0007] According to one aspect of this disclosure, the following technical solution is provided: an air handling unit with an easy-to-replace filter, comprising:

[0008] The housing has a rectangular groove on one side of its front end.

[0009] Hollow door, the hollow door being located inside a rectangular groove; and

[0010] A movable seat has a baffle fixedly installed at its rear end, a fixed seat fixedly installed at its top, a sliding groove opened at the top of the fixed seat, a slider provided at the top of the fixed seat, the slider being slidably connected to the sliding groove, a filter screen fixedly installed at the top of the slider, a slide frame fixedly installed at the bottom of the fixed seat, and a limit block fixedly installed at the middle position on one side of the baffle.

[0011] According to at least one embodiment of the present disclosure, an air handling unit with easy filter replacement is provided, wherein an intake fan is fixedly installed on one side of the housing near the rectangular slot, and an exhaust fan is fixedly installed on the other side of the housing.

[0012] According to at least one embodiment of the present disclosure, an air handling unit with easy filter replacement is provided, wherein the rectangular slot has a sliding hole on the side near the exhaust fan, the housing has a carriage groove inside, the carriage groove is slidably connected to the carriage, and the housing has a pressing hole on the side near the intake fan.

[0013] According to at least one embodiment of the present disclosure, in an air handling unit that facilitates filter replacement, a handle is fixedly installed on the side of the hollow door near the pressing hole, and a slide rod is fixedly installed inside the hollow door, the slide rod being slidably connected to the sliding hole.

[0014] According to at least one embodiment of the present disclosure, an air handling unit that facilitates filter replacement has a slot in the middle of the interior of the hollow door, a button inside the sliding hole, and a locking block fixedly installed on the side of the button near the slot, the locking block engaging with the slot.

[0015] According to at least one embodiment of the present disclosure, in an air handling unit that facilitates filter replacement, a spring is fixedly mounted at the rear end of the button, and the spring is fixedly connected to the inner wall of the sliding hole.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] When the hollow door moves to the right to expose the rectangular slot, pull the slide rail crossbar outward to make the slide rail slide outward through the slide rail slot. At the same time, it drives the moving seat and baffle to move outward. When the limit block on the right side of the baffle moves and contacts the hollow door, the baffle blocks the rectangular slot. Then, move the filter screen outward so that the slider fixed at the bottom of the filter screen slides outward in the slide groove on the fixed seat. The filter screen can then be removed and replaced. However, when the filter screen is removed directly from the top of the housing, the operation is relatively inconvenient, and dust and other pollutants on the filter screen may fall directly into the housing. This could cause the dust to fall into the housing and be directly transported into the room through the exhaust fan the next time the unit is used, affecting the indoor air quality. Attached Figure Description

[0018] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0019] Figure 1 This is a schematic diagram of the overall structure of an air handling unit that facilitates filter replacement, according to one embodiment of the present disclosure.

[0020] Figure 2 This is a schematic cross-sectional view of an air handling unit with easy filter replacement according to one embodiment of the present disclosure.

[0021] Figure 3 This is a schematic cross-sectional view of the housing and hollow door structure of an air handling unit with easy filter replacement according to one embodiment of the present disclosure.

[0022] Figure 4 This is a schematic diagram of the button, press hole, and slot structure of an air handling unit that facilitates filter replacement according to one embodiment of the present disclosure.

[0023] Figure 5 This is a schematic cross-sectional view of the movable base and housing of an air handling unit that facilitates filter replacement, according to one embodiment of the present disclosure.

[0024] Figure 6 This is a carriage for an air handling unit that facilitates filter replacement, according to one embodiment of the present disclosure. Schematic diagram of the movable seat and baffle structure.

[0025] Figure 7 This is a schematic diagram of the filter, mounting base, and slider structure of an air handling unit that facilitates filter replacement, according to one embodiment of the present disclosure.

[0026] The specific labels in the attached figures are as follows:

[0027] 100. Housing; 101. Intake fan; 102. Exhaust fan; 103. Rectangular groove; 104. Sliding hole; 105. Carrier groove; 106. Press hole;

[0028] 110. Hollow door; 111. Handle; 112. Sliding rod; 113. Card slot; 114. Button; 115. Locking block; 116. Spring;

[0029] 120. Movable seat; 121. Baffle; 122. Fixed seat; 123. Slide groove; 124. Slider; 125. Filter screen; 126. Carriage; 127. Limit block. Detailed Implementation

[0030] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0031] Figure 1 This is a schematic diagram of the overall structure of an air handling unit that facilitates filter replacement, according to one embodiment of the present disclosure.

[0032] Figure 2 This is a schematic cross-sectional view of an air handling unit with easy filter replacement according to one embodiment of the present disclosure.

[0033] Figure 3 This is a cross-sectional structural diagram of the housing 100 and hollow door 110 of an air handling unit with easy filter replacement according to one embodiment of the present disclosure.

[0034] Figure 4 This is a schematic diagram of the button 114, pressing hole 106 and slot 113 of an air handling unit that facilitates filter replacement according to one embodiment of the present disclosure.

[0035] Figure 5 This is a cross-sectional structural diagram of the movable base 120 and housing 100 of an air handling unit with easy filter replacement according to one embodiment of the present disclosure.

[0036] Figure 6 This is a schematic diagram of the slide 126, movable seat 120 and baffle 121 of an air handling unit that facilitates filter replacement according to one embodiment of the present disclosure.

[0037] Figure 7 This is a schematic diagram of the structure of a filter 125, a mounting base 122, and a slider 124 of an air handling unit that facilitates filter replacement, according to one embodiment of the present disclosure.

[0038] like Figures 1-7 As shown, the air handling unit with easy filter replacement disclosed herein may include components such as housing 100, hollow door 110, and movable base 120.

[0039] like Figure 1-7 As shown, this disclosure includes:

[0040] The housing 100 has a rectangular groove 103 on one side of its front end;

[0041] Hollow door 110, hollow door 110 is located inside rectangular groove 103; and

[0042] A movable base 120 has a baffle 121 fixedly installed at its rear end. A fixed base 122 is fixedly installed at the top of the movable base 120. A sliding groove 123 is provided on the top of the fixed base 122. A slider 124 is provided on the top of the fixed base 122, and the slider 124 is slidably connected to the sliding groove 123. A filter screen 125 is fixedly installed on the top of the slider 124. A sealing strip is fixed around the filter screen 125 to prevent unfiltered gas from entering the next stage of the air handling unit from around the filter screen 125. A slide bracket 126 is fixedly installed at the bottom of the fixed base 122. A limit block 127 is fixedly installed in the middle of one side of the baffle 121. The rectangular groove 103 is used to install the hollow door 110. The baffle 121 is used to block the rectangular groove 103 after the movable seat 120 is moved out, to prevent dust and other contaminants from falling into the housing 100 through the rectangular groove 103 when the filter screen 125 is removed. The fixed seat 122 is used to support the filter screen 125. After the movable seat 120 is moved out, the filter screen 125 can be moved outward. It can slide in the slide groove 123 by the slider 124, and then the filter screen 125 can be removed. The slide 126 can drive the movable seat 120 to move as a whole. At the same time, the crossbar of the slide 126 is long, which makes it easy for the operator to move the slide 126 outward. The limiting block 127 is used to prevent the movable seat 120 from moving too far, causing the movable seat 120 to detach from the housing 100.

[0043] Therefore, when the hollow door 110 moves to the right to expose the rectangular slot 103, the crossbar of the slide 126 is pulled outward, causing the slide 126 to slide outward through the slide slot 105. At the same time, the moving seat 120 and the baffle 121 move outward. When the limiting block 127 on the right side of the baffle 121 moves to contact the hollow door 110, the baffle 121 blocks the rectangular slot 103. Then the filter screen 125 is moved outward, causing the slider 124 fixed at the bottom of the filter screen 125 to slide outward in the slide groove 123 on the fixed seat 122. The filter screen 125 can then be removed and replaced. However, when the filter screen 125 is removed directly from the top of the housing 100, dust and other pollutants on the filter screen 125 may fall directly into the housing 100. This could cause the dust to fall into the housing 100 and be directly transported into the room through the exhaust fan 102 when the unit is used again, affecting the indoor air quality.

[0044] like Figure 1-4 As shown, in a preferred embodiment, an intake fan 101 is fixedly installed on the side of the housing 100 near the rectangular groove 103, and an exhaust fan 102 is fixedly installed on the other side of the housing 100. A sliding hole 104 is provided on the side of the rectangular groove 103 near the exhaust fan 102. A carriage groove 105 is provided inside the housing 100, and the carriage groove 105 is slidably connected to the carriage 126. A pressing hole 106 is provided on the side of the housing 100 near the intake fan 101. A handle 111 is fixedly installed on the side of the hollow door 110 near the pressing hole 106. A slide rod 112 is fixedly installed inside the hollow door 110, and the slide rod 112 is slidably connected to the sliding hole 104. A slot 113 is provided in the middle of the hollow door 110. A button 114 is provided inside the sliding hole 104. A locking block 115 is fixedly installed on the side of the button 114 near the slot 113, and the locking block 115 engages with the slot 113. A spring 116 is fixedly installed at the rear end and is fixedly connected to the inner wall of the sliding hole 104. The sliding hole 104 is located on the housing 100 on the right side of the rectangular groove 103. The hollow door 110 moves left and right by sliding the sliding rod 112 and sliding the sliding hole 104. The slide rail groove 105 is located on the bottom wall inside the housing 100. The slide rail 126 can drive the moving seat 120 to move back and forth in the housing 100 through the slide rail groove 105. The pressing hole 106 is located on the front of the housing 100 on the left side of the rectangular groove 103. A slot 113 is opened in the middle of the left side of the hollow door 110. The depth of the slot 113 is greater than the width of the block 115, so that when the button 114 is pressed, the block 115 can move in the slot 113, and then the hollow door 110 can be moved. After the button 114 is released, the spring 116 can make the button 114 drive the block 115 to reset and then lock the hollow door 110.

[0045] Therefore, when it is necessary to open the housing 100 to replace or clean the filter screen 125, the button 114 can be pressed to move the locking block 115 in the slot 113. Then, the handle 111 can be pulled to the right to move the slide bar 112 in the sliding hole 104, which will then move the hollow door 110. The slide can then be moved to remove the filter screen 125. This allows the operator to remove the filter screen 125 from the front of the housing 100, which is more convenient than removing it from the top of the housing 100.

[0046] It should also be noted that any content not described in detail in this specification is prior art known to those skilled in the art.

[0047] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. An air handling unit with filter replacement facilitated, characterized by, include: A housing (100) having a rectangular groove (103) on one side of its front end; Hollow door (110), the hollow door (110) being located inside a rectangular slot (103); and A movable seat (120) is provided with a baffle (121) fixedly installed at the rear end of the movable seat (120), a fixed seat (122) fixedly installed at the top of the movable seat (120), a sliding groove (123) provided at the top of the fixed seat (122), a slider (124) provided at the top of the fixed seat (122), the slider (124) being slidably connected to the sliding groove (123), a filter screen (125) fixedly installed at the top of the slider (124), a slide frame (126) fixedly installed at the bottom of the fixed seat (122), and a limit block (127) fixedly installed at the middle position on one side of the baffle (121).

2. The easy-to-replace filter air handling unit of claim 1, wherein: An intake fan (101) is fixedly installed on one side of the housing (100) near the rectangular groove (103), and an exhaust fan (102) is fixedly installed on the other side of the housing (100).

3. The air handling unit with easily replaceable filter according to claim 2, characterized in that: The rectangular groove (103) has a sliding hole (104) on the side near the exhaust fan (102), and the housing (100) has a slide groove (105) inside, which is slidably connected to the slide (126). The housing (100) has a pressing hole (106) on the side near the intake fan (101).

4. The easy-to-replace filter air handling unit of claim 3, wherein: A handle (111) is fixedly installed on the side of the hollow door (110) near the pressing hole (106), and a slide rod (112) is fixedly installed inside the hollow door (110), and the slide rod (112) is slidably connected to the sliding hole (104).

5. The easy-to-replace filter air handling unit of claim 4, wherein: The hollow door (110) has a slot (113) in the middle, and a button (114) is provided inside the sliding hole (104). A locking block (115) is fixedly installed on the side of the button (114) near the slot (113), and the locking block (115) engages with the slot (113).

6. The easy-to-replace filter air handling unit of claim 5, wherein: A spring (116) is fixedly installed at the rear end of the button (114), and the spring (116) is fixedly connected to the inner wall of the sliding hole (104).

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