Dehumidifier

Abstract

The utility model discloses a dehumidifier relates to air handling technical field, wherein, dehumidifier includes casing, filter module and dehumidification main body, wherein, the inside purification chamber of casing is formed, and the air inlet and air outlet that communicate with purification chamber are equipped on the casing, and the air outlet is located at the top of casing, and the air inlet is located at the lateral wall of casing, filter module is detachably installed at the air inlet, to filter the air that enters the purification chamber through the air inlet, dehumidification main body is located in the purification chamber, and is close to filter module setting. The utility model provides technical scheme, has solved the problem that only has the dehumidification function of current dehumidifier.

Description

Technical Field

[0001] This utility model relates to the field of air treatment technology, and in particular to a dehumidifier. Background Technology

[0002] Dehumidifiers, as an important household appliance for regulating ambient humidity, have seen a significant increase in popularity in the civilian sector in recent years. Especially in humid, rainy, or persistent plum rain season regions (such as southern China), the reliance on dehumidifiers in homes and offices is growing. By removing excess moisture from the air, they effectively improve the indoor environment, prevent furniture and clothing from becoming damp and moldy, and enhance living comfort.

[0003] However, existing dehumidifiers typically only have a single dehumidification function. Their main working principle is to lower the air temperature through methods such as compressor cooling or adsorption, causing water vapor in the air to reach saturation and condense into water, which is then discharged, thereby reducing humidity. In other words, existing dehumidifiers can usually only remove moisture from the air, lacking an effective purification mechanism for suspended particulate matter, organic odor molecules (such as ammonia and hydrogen sulfide), and volatile organic compounds (VOCs). Utility Model Content

[0004] The main purpose of this invention is to propose a dehumidifier that addresses the problem that existing dehumidifiers only have a dehumidification function.

[0005] To achieve the above objectives, the present invention proposes a dehumidifier, which includes:

[0006] The housing has an internal purification chamber. The housing is provided with an air inlet and an air outlet that communicate with the purification chamber. The air outlet is located at the top of the housing, and the air inlet is located on the side wall of the housing.

[0007] A filter module, detachably installed at the air inlet, filters the air entering the purification chamber through the air inlet; and

[0008] The dehumidification unit is located inside the purification chamber and is positioned close to the filter module.

[0009] In one embodiment, the filtering module includes:

[0010] A mounting frame is detachably mounted on the outside of the air outlet, and the mounting frame protrudes from the surface of the housing; and

[0011] The combined filter screen is detachably embedded inside the mounting frame.

[0012] In one embodiment, the mounting frame snaps into the housing.

[0013] In one embodiment, a slot is provided in one of the mounting frame and the housing, and a buckle is provided in the other of the mounting frame and the housing, and the slot and the buckle cooperate.

[0014] In one embodiment, the mounting frame is provided with limiting blocks, and multiple limiting blocks are spaced apart on the edge of the mounting frame; the housing is provided with limiting grooves, and the limiting grooves are configured to correspond one-to-one with the limiting blocks.

[0015] In one embodiment, the mounting frame is provided with handle positions, and multiple handle positions are spaced apart along the edge of the mounting frame.

[0016] In one embodiment, the combined filter includes a pre-filter and a HEPA filter stacked on top of each other, with the pre-filter disposed near the outer side of the mounting frame and the HEPA filter disposed near the dehumidification body.

[0017] In one embodiment, the combined filter screen further includes an activated carbon filter screen, and the HEPA filter screen is disposed between the activated carbon filter screen and the pre-filter screen, or the activated carbon filter screen is disposed between the HEPA filter screen and the pre-filter screen.

[0018] In one embodiment, the combined filter screen includes a pre-filter and a spray-bonded cotton filter stacked on top of each other. The pre-filter is disposed near the outer side of the mounting frame, and the spray-bonded cotton filter is disposed near the dehumidification body.

[0019] In one embodiment, the inner periphery of the mounting frame is provided with an annular groove, and the periphery of the combined filter screen is embedded in the annular groove.

[0020] In one embodiment, the dehumidifier further includes a flow guide shroud disposed between the filter module and the dehumidification body.

[0021] In one embodiment, the inner diameter of the flow guide varies in a decreasing manner from the side closer to the filter module to the side farther away from the filter module.

[0022] This invention's technical solution involves placing the air outlet at the top of the casing, the air inlet on the side wall of the casing, and positioning the dehumidifier unit close to the filter module within the purification chamber. This structural layout creates a "short-distance direct-flow" air duct where air enters from the side, is immediately dehumidified after high-efficiency filtration, and finally exits from the top. In this solution, the filter module is detachably installed at the air inlet, allowing outside air to be filtered as soon as it enters the purification chamber. The air then passes through the dehumidifier unit for humidity control, ensuring the cleanliness of the air reaching the unit. This solution integrates air filtration into the dehumidifier, significantly improving air quality while reducing indoor humidity. Furthermore, the detachable connection of the filter module facilitates the removal and cleaning of the filter screen. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of an embodiment of the dehumidifier provided by this utility model;

[0025] Figure 2 This is a structural schematic diagram of another embodiment of the dehumidifier provided by this utility model;

[0026] Figure 3 A schematic diagram of the internal structure of another embodiment of the dehumidifier provided by this utility model;

[0027] Figure 4 A schematic diagram of the mounting frame in another embodiment of the dehumidifier provided by this utility model;

[0028] Figure 5 A partial structural diagram of the casing of the dehumidifier provided by this utility model in another embodiment;

[0029] Figure 6 This is a schematic diagram of the combined filter structure in another embodiment of the dehumidifier provided by this utility model.

[0030] Explanation of icon numbers:

[0031] 100. Dehumidifier; 1. Housing; 11. Air outlet; 12. Air inlet; 13. Slot; 14. Limiting slot; 15. Groove; 16. Drain outlet; 2. Filter module; 21. Mounting frame; 211. Buckle; 212. Limiting block; 213. Handle; 214. Annular groove; 22. Combined filter screen; 221. Pre-filter screen; 222. HEPA filter screen; 3. Dehumidifier body; 4. Air guide cover.

[0032] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0034] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] Existing dehumidifiers typically only have a single dehumidification function. Their main working principle is to lower the air temperature through methods such as compressor cooling or adsorption, causing water vapor in the air to reach saturation and condense into water, which is then discharged, thereby reducing humidity. In other words, existing dehumidifiers can usually only remove moisture from the air and lack effective purification mechanisms for suspended particulate matter, organic odor molecules (such as ammonia and hydrogen sulfide), and volatile organic compounds (VOCs).

[0037] This utility model proposes a dehumidifier.

[0038] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the dehumidifier 100 includes:

[0039] The housing 1 has a purification chamber inside. The housing 1 is provided with an air inlet 12 and an air outlet 11 that communicate with the purification chamber. The air outlet 11 is located on the top of the housing 1, and the air inlet 12 is located on the side wall of the housing 1.

[0040] Filter module 2 is detachably installed at air inlet 12 to filter the air entering the purification chamber through air inlet 12; and

[0041] The dehumidification unit 3 is located inside the purification chamber and is positioned close to the filter module 2.

[0042] The technical solution of this utility model involves placing the air outlet 11 on the top of the casing 1 and the air inlet 12 on the side wall of the casing 1. The dehumidifying body 3 is positioned close to the filter module 2 within the purification chamber. This structural layout forms a "short-distance direct-flow" air duct that draws in air from the side, is immediately dehumidified after high-efficiency filtration, and finally exits from the top. In this solution, the filter module 2 is detachably installed at the air inlet 12, allowing outside air to be filtered immediately upon entering the purification chamber. The air is then further humidified by the dehumidifying body 3, ensuring the cleanliness of the air reaching the dehumidifying body 3. This solution integrates air filtration into the dehumidifier 100, significantly improving air quality while reducing indoor humidity. Furthermore, the detachable connection of the filter module 2 facilitates the removal and cleaning of the filter screen within it.

[0043] Specifically, the housing 1 can be a one-piece or split box made of plastic through injection molding, and can be square or cylindrical. The air inlet 12 can be a rectangular or grille-shaped opening opened on the lower part of the front or left and right side walls of the housing 1. The air outlet 11 can be a circular, square, or elongated opening located in the center or rear of the top panel of the housing 1. For example, a horizontal elongated air outlet grille can be provided at the rear edge of the top panel, and the grille blades can have a certain angle to guide the airflow direction and avoid direct airflow to the user. Understandably, the air outlet 11 can be connected to an air duct to guide the air in the purification chamber to be discharged here. The filter module 2 can be a drawer-type filter structure. A slide rail or slot 13 can be provided on the housing 1 inside the air inlet 12. The filter module 2 can be a filter assembly with a frame. The frame can be provided with a handle or groove 15 that matches the slide rail or slot 13, so that the frame can be pulled out horizontally or at an angle like a drawer for cleaning or replacement.

[0044] Furthermore, the filter module 2 can also be a magnetic or snap-on panel structure. For example, an openable cover can be provided at the air inlet 12 of the housing 1. This cover is magnetically connected to the housing 1 via a magnet, and the filter module 2 is attached to the inside of the cover. The user can open the cover to remove the old filter, replace it with a new filter, and then close the cover. It should be noted that the dehumidification body 3 mainly includes an evaporator and a condenser. The evaporator and condenser can be composed of multiple rows of parallel copper tubes and aluminum fins strung on the copper tubes, forming a block shape. The evaporator is used to cool the air, causing the water vapor in the air to condense into water; the condenser is used to dissipate the heat generated by the compressor and reheat the cold, dry air after passing through the evaporator to blow out warm but not dry air. In one embodiment, the housing 1 is provided with a drain outlet 16, which is located near the evaporator and is used to drain the condensate generated in the evaporator. A cover can be provided on the outside of the drain outlet 16 to cover it. Alternatively, in another embodiment, the exterior of the housing 1 may be provided with a groove 15, which allows the user to insert their hand into the groove 15 to facilitate moving the dehumidifier 100 to the desired location.

[0045] In this design, the dehumidifying unit 3 is positioned adjacent to the filter module 2, for example, directly opposite and adjacent to the rear of the filter module 2. When air enters from the air inlet 12, it passes through the filter module 2 and immediately impacts the evaporator fins of the dehumidifying unit 3, thus being efficiently treated. Furthermore, a fan, such as a centrifugal fan or a cross-flow fan, can be installed inside the purification chamber, positioned behind or to the side of the dehumidifying unit 3, to draw out the treated air and blow it towards the air outlet 11 at the top.

[0046] In the embodiments of this utility model, please refer to Figure 3 Filtering module 2 includes:

[0047] Mounting frame 21 is detachably mounted on the outside of air outlet 11, and mounting frame 21 protrudes from the surface of housing 1; and

[0048] The combined filter 22 is detachably embedded inside the mounting frame 21.

[0049] Specifically, the mounting frame 21 can be a rectangular or circular frame similar to a picture frame, with its outer edge slightly larger than the size of the air outlet 11. The mounting frame 21 and the housing 1 can be connected by a snap-fit ​​211 or a threaded connection. Furthermore, the front of the mounting frame 21 can have a flat surface, a curved surface, or a decorative grille to improve the overall aesthetics of the device. The combined filter 22 can be a flat or pleated structure that matches the inner dimensions of the mounting frame 21. The combined filter 22 can have a single layer or multiple layers, depending on actual needs. To facilitate the installation of the combined filter 22, magnetic strips can be provided on the edge of the filter, and corresponding iron plates are embedded on the inner side of the mounting frame 21. This allows the combined filter 22 to easily "adhere" into the mounting frame 21, achieving tool-free, instant installation and removal.

[0050] In the embodiments of this utility model, please refer to Figure 4 and Figure 5 The mounting frame 21 is snapped into the housing 1, allowing for easy disassembly and assembly of the mounting frame 21. In one embodiment, a slot 13 is provided in one of the mounting frame 21 and the housing 1, and a buckle 211 is provided in the other, with the slot 13 and buckle 211 engaging. That is, an elastic piece can be provided on the outer edge of the air outlet 11 of the housing 1, with a hemispherical or wedge-shaped protrusion at the end of the elastic piece, thus forming the buckle 211 structure; correspondingly, recesses or notches corresponding to the position and shape of these protrusions are provided on the inner edge of the mounting frame 21, thus forming the slot 13 structure. In other embodiments, one or more L-shaped or T-shaped guide rails extend outward from the edge of the air outlet 11 on the housing 1, and these guide rails together constitute the slot 13. For example, an L-shaped guide rail can be set on each of the four sides of the air outlet 11, and correspondingly, a cantilever structure with barbs or protrusions can be integrally formed on the four sides of the mounting frame 21 to form a buckle 211 structure.

[0051] In the embodiments of this utility model, please refer to Figure 4 and Figure 5The mounting frame 21 is provided with limiting blocks 212, and multiple limiting blocks 212 are spaced apart along the edge of the mounting frame 21. The housing 1 is provided with limiting grooves 14, and the limiting grooves 14 correspond one-to-one with the limiting blocks 212. The limiting blocks 212 can be trapezoidal or dovetail-shaped protrusions provided around the perimeter of the mounting frame 21, that is, the outer side of the protrusion (i.e., the side that first enters the limiting groove 14) has a smooth slope. During installation, this slope contacts the edge of the limiting groove 14, generating a component force that automatically guides the mounting frame 21 toward the target installation position, achieving a "self-centering" function. Understandably, the limiting groove 14 is a dovetail groove or trapezoidal groove that matches the limiting blocks 212, and the inner wall of the groove 14 also has a slope, so as to perfectly fit the slope on the limiting blocks 212.

[0052] In the embodiments of this utility model, please refer to Figure 4 The mounting frame 21 is provided with handle positions 213, and multiple handle positions 213 are spaced apart along the edge of the mounting frame 21. The handle positions 213 can be recessed grooves, and the cross-section of the grooves can be "U", semi-circular or trapezoidal. As a human-machine interface, when disassembly is required, the user only needs to naturally insert their fingertips into this groove 15 to easily find the point of leverage and apply pulling force, thereby moving the entire dehumidifier 100 to the desired target position.

[0053] In the embodiments of this utility model, please refer to Figure 6 The combined filter 22 includes a pre-filter 221 and a HEPA filter 222 stacked on top of each other. The pre-filter 221 is located near the outer side of the mounting frame 21, and the HEPA filter 222 is located near the dehumidification body 3. In this design, the combined filter 22 includes two layers: a pre-filter 221 and a HEPA filter 222. The pre-filter 221 is located on the outermost side and is typically made of a material with a larger fiber density and wider pores (such as non-woven fabric or nylon mesh). The HEPA filter 222 is located on the inner side, forming a hierarchical layout of "pre-filter on the outside, HEPA filter on the inside." Thus, when air is drawn in from the air inlet 12, it first comes into contact with the outermost pre-filter 221, whose main task is to intercept larger pollutants in the air, such as hair, dander, lint, and dust particles. This layer of filtration greatly reduces the burden on the HEPA filter 222 located behind it. The HEPA filter 222 (High-Efficiency Particulate Air filter) is the core of the composite filter 22. It is made of extremely fine fibers and is specifically designed to capture micron-sized and even submicron-sized particles such as PM2.5, pollen, bacteria, and allergens. Compared to traditional dehumidifiers 100, these large particles directly impact the HEPA filter 222, quickly clogging its delicate fiber pores. This results in a sharp increase in air resistance, a precipitous drop in purification efficiency, and a shortened lifespan.

[0054] In one embodiment of this invention, the combined filter 22 further includes an activated carbon filter. A HEPA filter 222 is disposed between the activated carbon filter and the pre-filter 221, forming a gradient layout of "pre-filter → HEPA → activated carbon" combined filters. The core of this layout is to protect the activated carbon filter and maximize its service life. Air first passes through the pre-filter 221 to intercept large particles, and then passes through the HEPA filter 222 to filter out almost all tiny particles. At this point, the air entering the activated carbon filter is very clean, containing almost no dust. This prevents the micropores of the activated carbon from being clogged by dust, ensuring that its adsorption capacity can focus on gaseous pollutants stably and for a long time, thereby extending the effective service life of the activated carbon filter.

[0055] Alternatively, in another embodiment, an activated carbon filter is positioned between the HEPA filter 222 and the pre-filter 221. The core of this arrangement is to optimize airflow and prevent secondary pollution from activated carbon dust. After passing through the pre-filter, the air first comes into contact with the activated carbon filter, where odors are quickly adsorbed. This has an immediate effect on improving the sensory experience of the air at the vent (such as quickly removing kitchen odors). Furthermore, during the production or use of the activated carbon filter, extremely fine carbon powder may detach. Placing the HEPA filter 222 after the activated carbon filter acts as a "final gatekeeper," intercepting 100% of this potentially detached carbon powder, ensuring that the air blown into the room is absolutely pure and eliminating any form of secondary pollution.

[0056] Alternatively, in another embodiment of this utility model, the combined filter 22 includes a pre-filter 221 and a spray-bonded cotton filter stacked on top of each other. The pre-filter 221 is positioned near the outer side of the mounting frame 21, and the spray-bonded cotton filter is positioned near the dehumidification body 3. The pre-filter 221 is responsible for intercepting larger particles in the air, such as hair, dander, and lint, acting as the first line of defense. The spray-bonded cotton filter, as a non-woven fabric material made of ultra-fine fibers bonded together by a spray-bonding process, forms a dense and three-dimensional mesh structure inside, with a very large dust-holding capacity and high filtration efficiency (it also has a good interception effect on fine particles such as PM2.5). Unlike HEPA filters 222, while the resistance increases after the spray-bonded cotton filter reaches saturation, it is less prone to being instantly clogged or damaged by large particles like HEPA filters. This combination of "pre-filter + spray-bonded cotton" forms a "deep dust-holding" system, capable of capturing and holding large amounts of dust, extending the replacement cycle of the entire filter assembly. In actual use, users can choose which combination of filters 22 to configure according to their needs.

[0057] In the embodiments of this utility model, please refer to Figure 4The mounting frame 21 has an annular groove 214 on its inner periphery, and the periphery of the combined filter 22 is embedded in the annular groove 214. The inner wall of the mounting frame 21 is made of an elastic material. The cross-section of the annular groove 214 can be C-shaped or U-shaped. This type of groove 15 has two opposing side walls and a connecting bottom wall. The periphery of the combined filter 22 is set as a thin sheet with a groove width equivalent to that of the annular groove 214. During installation, the edge of the combined filter 22 is slightly squeezed and embedded between the two side walls of the annular groove 214, and the combined filter 22 is tightly clamped by the elasticity of the material or interference fit. Furthermore, a sealing ring can also be provided inside the annular groove 214. The material can be silicone or EPDM rubber, etc. When the combined filter 22 is pressed into the annular groove 214, its edge will be tightly pressed on this sealing ring. Through compression deformation, all potential tiny gaps are completely filled, improving the sealing performance at the air inlet 12 and ensuring that air can only enter from the filter.

[0058] In the embodiments of this utility model, please refer to Figure 3 The dehumidifier 100 also includes a flow guide shroud 4, which is located between the filter module 2 and the dehumidification body 3. The flow guide shroud 4 can be a Venturi tube type, with a larger cross-section at its inlet end (near the filter module 2), smoothly contracting towards the middle to form a "throat" (with the smallest cross-section), and then slightly expanding to connect with the inlet of the dehumidification body 3. When air flows through the contraction section, according to the principle of fluid continuity, its velocity will increase significantly. The high-speed airflow can more effectively penetrate the fin gaps of the dehumidification body 3 (evaporator), enhancing the heat exchange effect and effectively improving dehumidification efficiency.

[0059] In the embodiments of this utility model, please refer to Figure 3 The inner diameter of the air guide shroud 4 decreases from the side closer to the filter module 2 to the side farther away from the filter module 2. That is, the air guide shroud 4 is a conical shroud. The sidewall of the air guide shroud 4 is no longer a simple straight line or a single arc, but a complex curved surface composed of multiple arcs or spline curves with different curvatures. The inlet end of the shroud forms a large "trumpet mouth" design to collect air from the filter module 2 more smoothly. The middle section uses a curve with a faster contraction rate to achieve efficient acceleration. The outlet end has a short straight or slightly expanded guide section to stabilize the airflow pattern and make it blow towards the dehumidification body 3 at a more uniform speed field.

[0060] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A dehumidifier characterized by comprising: The dehumidifier includes: The housing has an internal purification chamber. The housing is provided with an air inlet and an air outlet that communicate with the purification chamber. The air outlet is located at the top of the housing, and the air inlet is located on the side wall of the housing. A filter module, detachably installed at the air inlet, filters the air entering the purification chamber through the air inlet; and The dehumidification unit is located inside the purification chamber and is positioned close to the filter module.

2. The dehumidifier of claim 1, wherein, The filtering module includes: A mounting frame is detachably mounted on the outside of the air outlet, and the mounting frame protrudes from the surface of the housing; and The combined filter screen is detachably embedded inside the mounting frame.

3. The dehumidifier of claim 2, wherein, The mounting frame is snapped into the housing.

4. The dehumidifier of claim 3, wherein, The mounting frame and the housing are provided with a slot, and the mounting frame and the housing are provided with a buckle, and the slot and the buckle cooperate.

5. The dehumidifier of claim 4, wherein, The mounting frame is provided with limiting blocks, and multiple limiting blocks are spaced apart along the edge of the mounting frame; the housing is provided with limiting grooves, and each limiting groove corresponds to one of the limiting blocks; and / or, The mounting frame is provided with handle positions, and multiple handle positions are spaced apart along the edge of the mounting frame.

6. The dehumidifier of claim 2, wherein, The combined filter includes a pre-filter and a HEPA filter stacked on top of each other. The pre-filter is located near the outer side of the mounting frame, and the HEPA filter is located near the dehumidification body.

7. The dehumidifier of claim 6, wherein, The combined filter also includes an activated carbon filter, and the HEPA filter is disposed between the activated carbon filter and the pre-filter, or the activated carbon filter is disposed between the HEPA filter and the pre-filter.

8. The dehumidifier of claim 2, wherein, The combined filter screen includes a pre-filter and a spray-bonded cotton filter stacked on top of each other. The pre-filter is positioned near the outer side of the mounting frame, and the spray-bonded cotton filter is positioned near the dehumidification body; and / or, The inner periphery of the mounting frame is provided with an annular groove, and the periphery of the combined filter screen is embedded in the annular groove.

9. The dehumidifier according to any one of claims 1 to 8, wherein The dehumidifier also includes a flow guide shroud, which is disposed between the filter module and the dehumidification body.

10. The dehumidifier of claim 9, wherein, The inner diameter of the flow guide varies from the side closer to the filter module to the side farther away from the filter module.

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