Dehumidifier
By placing the condenser at the outlet of the volute air duct, the traditional layout is changed, solving the problems of dehumidifier thickness and wind resistance, and achieving a thin design and multi-directional air supply effect.
Patent Information
- Application Number
- CN202423076504.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-12
AI Technical Summary
The traditional dehumidifier's condenser and evaporator layout prevents the product from being flattened, resulting in high wind resistance and serious noise problems. The simple air duct design also leads to poor air delivery.
By placing the condenser at the outlet of the volute air duct, the traditional layout is changed, so that the condenser is no longer on the same axis as the evaporator and the impeller. A backward-inclined centrifugal impeller is used to increase the air outlet direction and optimize the spatial layout.
The dehumidifier features a slim design, reducing wind resistance, increasing air delivery distance and multi-directional airflow capability, and improving air delivery performance.
Smart Images

Figure CN223537736U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioning equipment technology, and in particular to a dehumidifier. Background Technology
[0002] In traditional dehumidifiers, the evaporator, condenser, and fan are typically mounted on the same axis. The entire duct system can be divided into three parts: the front air inlet, the middle fan unit, and the rear air outlet. The evaporator and condenser are sequentially located at the front air inlet of the duct, with the fan installed behind them.
[0003] The current layout of condensers, evaporators, and fan components has several drawbacks: First, the thickness of the product is limited, preventing a flat design and restricting product flexibility. Second, because the condenser and evaporator are stacked, the distance between them must be very small to reduce the overall size of the dehumidifier. This results in too small a gap between the pipes connecting the condenser, evaporator, and compressor. When the compressor is working, the vibrations will cause the pipes to collide with each other, generating noise.
[0004] Furthermore, since both the condenser and evaporator are located at the air inlet at the front of the duct, the air resistance at the front of the duct is relatively high. Therefore, the design of the dehumidifier's impeller and duct needs to be biased towards high suction power. This design is characterized by lower air pressure at the rear end. Therefore, the air outlet is generally designed to exit in only one direction. If it were designed to exit in multiple directions, the air delivery distance would be short, and the dehumidification effect would be greatly reduced.
[0005] It is evident that existing technologies still need improvement and enhancement. Utility Model Content
[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a dehumidifier that optimizes the layout design of the evaporator, condenser and fan components and reduces the wind resistance at the front end of the impeller.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A dehumidifier includes a housing, a fan, a volute duct, a condenser, an evaporator, and a compressor disposed within the housing. The fan is disposed within the volute duct, and the condenser is disposed at the outlet of the volute duct. The housing is provided with an air inlet and an air outlet, and the air outlet is connected to the outlet of the volute duct. The air inlet is disposed on the front side of the evaporator.
[0009] The dehumidifier is provided with an outlet on the top and left side of the volute air duct, and an air outlet on the top and left side of the casing; the condenser extends along the inner side of the air outlet.
[0010] The dehumidifier is described above, wherein the condenser is L-shaped.
[0011] The dehumidifier, wherein the volute air duct includes an arc-shaped portion and an obliquely extending portion; the bottom of the obliquely extending portion is connected to the top of the arc-shaped portion and extends in a direction away from the impeller; the arc-shaped portion partially surrounds the impeller; the bottom of the arc-shaped portion is connected to the inner side of the condenser; and the top of the obliquely extending portion is connected to the bottom surface of the top of the condenser.
[0012] The dehumidifier is provided with outlets on the top, left and right sides of the volute air duct, and air outlets on the top, left and right sides of the casing; the condenser extends along the inner side of the air outlet.
[0013] The dehumidifier is provided with outlets on the top, left and bottom surfaces of the volute air duct, and air outlets on the top, left and bottom surfaces of the housing; the condenser extends along the inner side of the air outlet.
[0014] The dehumidifier is described above, wherein the condenser is U-shaped.
[0015] In the aforementioned dehumidifier, the evaporator is located in front of the air inlet of the volute air duct.
[0016] In the dehumidifier, a mesh screen is provided on the front side of the air inlet; the mesh screen is fixedly connected to the housing.
[0017] The dehumidifier is provided with an air outlet grille.
[0018] Beneficial effects: This utility model provides a dehumidifier that changes the traditional layout by placing the condenser at the outlet of the volute air duct, so that the condenser is no longer located in front of the fan or behind the evaporator, thus optimizing the spatial layout and making the dehumidifier thinner. In addition, with no condenser at the front of the fan, the wind resistance is relatively reduced, so a backward-inclined centrifugal fan can be used, resulting in a longer air delivery distance and multiple air outlet directions. Attached Figure Description
[0019] Figure 1 Schematic diagram of the internal structure of a dehumidifier Figure 1 .
[0020] Figure 2 Schematic diagram of the internal structure of a dehumidifier Figure 2 .
[0021] Figure 3 Schematic diagram of the internal structure of a dehumidifier Figure 3 .
[0022] Figure 4 Schematic diagram of the internal structure of a dehumidifier Figure 4 .
[0023] Figure 5 Schematic diagram of the internal structure of a dehumidifier Figure 5 .
[0024] Explanation of main component symbols: 1-shell, 2-impeller, 3-volute air duct, 4-condenser, 5-evaporator, 6-compressor, 7-motor, 11-air inlet, 12-air outlet, 31-arc section, 32-slanted extension, 8-partition mesh, 13-air outlet grille. Detailed Implementation
[0025] This utility model provides a dehumidifier. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model.
[0027] Please see Figures 1-3 This utility model provides a dehumidifier, including a housing 1, a fan 2, a volute duct 3, a condenser 4, an evaporator 5, and a compressor 6 disposed within the housing 1. The fan 2 is disposed within the volute duct 3, and the condenser 4 is disposed at the outlet of the volute duct 3. The housing 1 is provided with an air inlet 11 and an air outlet 12, and the air outlet 12 is connected to the outlet of the volute duct 3. The air inlet 11 is disposed in front of the evaporator 5. Specifically, the outlet of the volute duct 3 is located beside the fan 2, not on the axis formed by the evaporator 5 and the fan 2. Therefore, the condenser 4 is not on the same axis as the evaporator 5 and the fan 2, resulting in fewer structural components on that axis, allowing for a thinner dehumidifier and more diverse appearance designs. In addition, since the condenser 4 is not in front of the impeller 2, the resistance in front of the impeller 2 will be significantly reduced. Therefore, the impeller 2 is selected as a backward-inclined centrifugal impeller 2, which has a longer air delivery distance, greater rear air pressure, and can be applied to dehumidifiers with multiple air outlets 12.
[0028] Please see Figure 4 Specifically, an electric motor 7 is also installed inside the housing 1, and the electric motor 7 is connected to the fan wheel 2 via a drive system. The condenser 4, evaporator 5, and compressor 6 are connected via refrigerant pipes.
[0029] Please see Figure 1 and Figure 3 In one embodiment, the top and left sides of the volute duct 3 are provided with outlets, and the top and left sides of the housing 1 are provided with air outlets 12; the condenser 4 extends along the inner side of the air outlets 12. Specifically, the outlets of the volute duct 3 are correspondingly arranged with the air outlets 12 of the housing 1. In this embodiment, air can be discharged from both the left and top sides of the dehumidifier, thereby enabling faster adjustment of humidity in different directions.
[0030] Preferably, the condenser 4 is L-shaped and can be adapted to the housing 1 which has two air outlet directions.
[0031] Please see Figure 3 and Figure 4 In one embodiment, the volute air duct 3 includes an arc-shaped portion 31 and an obliquely extending portion 32; the bottom of the obliquely extending portion 32 is connected to the top of the arc-shaped portion 31 and extends away from the impeller 2; the arc-shaped portion 31 partially surrounds the impeller 2; the bottom of the arc-shaped portion 31 is connected to the inner side of the condenser 4; the top of the obliquely extending portion 32 is connected to the bottom surface of the top of the condenser 4. The volute air duct 3 forms a semi-enclosed structure and together with the condenser 4 forms a complete enclosed structure, surrounding the impeller 2. During operation, the dehumidified air is discharged from the top and left side of the impeller 2, and the dehumidified air is heated and discharged from the dehumidifier after passing through the condenser 4. In this embodiment, the obliquely extending portion 32 is used to form a longer air outlet channel, so that the air outlet 12 on the top surface can be larger, increasing the air outlet area.
[0032] In one embodiment, the top, left, and right sides of the volute duct 3 are provided with outlets, and the top, left, and right sides of the housing 1 are provided with air outlets 12; the condenser 4 extends along the inner side of the air outlets 12. In this embodiment, the housing 1 is provided with air outlets 12 in three directions, and the dehumidified air can be discharged from the top, left, and right sides of the housing 1.
[0033] Please see Figure 5 In one embodiment, the top, left, and bottom surfaces of the volute duct 3 are provided with outlets, and the top, left, and bottom surfaces of the housing 1 are provided with air outlets 12; the condenser 4 extends along the inner side of the air outlets 12. In this embodiment, the housing 1 is provided with air outlets 12 in three directions, and the dehumidified air can be discharged from the top, left, and bottom surfaces of the housing 1.
[0034] Preferably, the condenser 4 is U-shaped and can be adapted to the housing 1 with three air outlet directions.
[0035] Specifically, the evaporator 5 is located in front of the air inlet of the volute duct 3. The evaporator 5 is used to cool the air. After cooling, the moisture in the air liquefies and is adsorbed onto the evaporator 5, thereby achieving the function of dehumidification.
[0036] Please see Figure 1 Preferably, a mesh screen 8 is provided on the front side of the air inlet 11; the mesh screen 8 is fixedly connected to the housing 1. The mesh screen 8 is used to prevent large foreign objects from being sucked in, thus avoiding damage to the impeller 2 by large foreign objects.
[0037] Please see Figure 1 Preferably, an air outlet grille 13 is provided at the air outlet 12, and the air outlet grille 13 is used to adjust the air outlet direction.
[0038] In summary, by optimizing the layout of the condenser 4, this utility model positions the condenser 4 at the outlet of the volute air duct 3, so that it is no longer on the same axis as the evaporator 5 and the impeller 2. This allows the dehumidifier to be thinner and reduces the resistance on the front side of the impeller 2, enabling the impeller 2 to be a backward-inclined centrifugal impeller 2, providing a stronger air outlet effect and allowing the dehumidifier to achieve multi-directional air outlet.
[0039] It is understood that those skilled in the art can make equivalent substitutions or modifications based on the technical solution and inventive concept of this utility model, and all such substitutions or modifications should fall within the protection scope of the appended claims.
Claims
1. A dehumidifier, comprising a housing, a fan, a volute duct, a condenser, an evaporator, and a compressor disposed within the housing, wherein the fan is disposed within the volute duct, characterized in that, The condenser is located at the outlet of the volute air duct; the housing is provided with an air inlet and an air outlet, the air outlet being connected to the outlet of the volute air duct; the air inlet is located on the front side of the evaporator.
2. The dehumidifier according to claim 1, characterized in that, The top and left sides of the volute air duct are provided with outlets, and the top and left sides of the casing are provided with air vents; the condenser extends along the inner side of the air vents.
3. The dehumidifier according to claim 2, characterized in that, The condenser is L-shaped.
4. The dehumidifier according to claim 3, characterized in that, The volute air duct includes an arc-shaped portion and an obliquely extending portion; the bottom of the obliquely extending portion is connected to the top of the arc-shaped portion and extends in a direction away from the impeller; the arc-shaped portion partially surrounds the impeller; the bottom of the arc-shaped portion is connected to the inner side of the condenser; and the top of the obliquely extending portion is connected to the bottom surface of the top of the condenser.
5. The dehumidifier according to claim 1, characterized in that, The top, left, and right sides of the volute air duct are provided with outlets, and the top, left, and right sides of the housing are provided with air vents; the condenser extends along the inner side of the air vents.
6. The dehumidifier according to claim 1, characterized in that, The top, left, and bottom surfaces of the volute air duct are provided with outlets, and the top, left, and bottom surfaces of the housing are provided with air vents. The condenser extends along the inside of the air outlet.
7. The dehumidifier according to claim 5 or 6, characterized in that, The condenser is U-shaped.
8. The dehumidifier according to claim 1, characterized in that, The evaporator is located in front of the air inlet of the volute air duct.
9. The dehumidifier according to claim 1, characterized in that, A mesh screen is provided on the front side of the air inlet; the mesh screen is fixedly connected to the housing.
10. The dehumidifier according to claim 1, characterized in that, An air outlet grille is provided at the air outlet.