Dehumidifier

Abstract

The utility model provides a dehumidifier. The dehumidifier comprises a machine shell, the heat exchanger comprises an evaporator and a condenser which are arranged in the machine shell, a gap is formed between the evaporator and the condenser, and a sterilization space is formed between the evaporator and the condenser; the ultraviolet generating device is arranged in the machine shell and located above the heat exchanger, and the ultraviolet generating device can emit ultraviolet light beams and irradiate the gas passing through the sterilization space. According to the dehumidifier, the ultraviolet generating device is arranged over the interval between the evaporator and the condenser, the ultraviolet light beams emitted by the ultraviolet generating device can directly irradiate the space between the evaporator and the condenser, in this way, the ultraviolet light beams irradiate the position where air circulation and exchange must pass, and the position space is not shielded; therefore, the sterilization effect is greatly improved.

Description

Technical Field

[0001] This application belongs to the field of air conditioning equipment technology, and more specifically, relates to a dehumidifier. Background Technology

[0002] With social development and progress, people's demands for the quality and comfort of their living environment are increasing, leading to a growing number of home appliances that improve living conditions. While dehumidifiers improve air humidity, they also require air sterilization to enhance the health of the environment. Most existing dehumidifiers install their sterilization devices on the air intake side, such as multiple ultraviolet lamps and photocatalytic mesh. While this can achieve a sterilization effect, the actual sterilization efficiency is poor and does not reach its maximum potential. Utility Model Content

[0003] The purpose of this application is to provide a dehumidifier that can improve the sterilization effect.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a dehumidifier, comprising:

[0005] chassis;

[0006] A heat exchanger includes an evaporator and a condenser disposed within the housing, wherein the evaporator and the condenser are spaced apart and form a sterilization space;

[0007] An ultraviolet (UV) generator is installed inside the housing and above the heat exchanger. The UV generator emits a UV beam and irradiates the gas passing through the sterilization space.

[0008] In one embodiment, the ultraviolet generating device includes a circuit board and a plurality of UVC-LED beads spaced apart on the circuit board, each of the UVC-LED beads being located directly above the sterilization space.

[0009] In one embodiment, a plurality of the UVC-LED beads are arranged in a straight line on the circuit board.

[0010] In one embodiment, the circuit board is an aluminum plate with printed circuitry on its surface.

[0011] In one embodiment, the ultraviolet generator further includes a mounting bracket connected and fixed to the circuit board, the mounting bracket being at least partially stacked under the circuit board, and the mounting bracket being connected and fixed to a frame within the housing.

[0012] In one embodiment, a notch is provided on one side of the mounting bracket to form a mounting position for installing a radiator.

[0013] In one embodiment, the bottom surface of the mounting bracket is provided with a light-shielding tube corresponding to the position of each UVC-LED lamp bead. The two ends of the light-shielding tube are open in the axial direction. A sealing sleeve is sealed inside the light-shielding tube. The two ends of the sealing sleeve are open in the axial direction. A light-transmitting sheet is sealed and fixed inside the sealing sleeve. The sealing sleeve covers the UVC-LED lamp bead and is in sealed contact with the circuit board.

[0014] In one embodiment, at least one first sealing rib is protruding from one end face of the sealing sleeve along the axial direction, and the first sealing rib is in sealing contact with the circuit board.

[0015] In one embodiment, an annular retaining ring is provided near the bottom of the light-shielding tube, and the other end face of the sealing sleeve in axial direction is in sealing contact with the retaining ring; at least one second sealing rib is protruding from the other end face of the sealing sleeve in axial direction, and the second sealing rib is in sealing contact with the retaining ring.

[0016] In one embodiment, the mounting bracket has an upwardly extending connecting portion on one side, which is connected and fixed to the frame by screws.

[0017] The beneficial effects of the dehumidifier provided in this application are as follows: Compared with the prior art, the dehumidifier of this application, by placing the ultraviolet generator directly above the space between the evaporator and the condenser, allows the ultraviolet light emitted by the ultraviolet generator to directly irradiate the space between the evaporator and the condenser. In this way, the ultraviolet light irradiates the necessary passage for air circulation and exchange, and the space at this location is unobstructed, thereby greatly improving the sterilization effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a partial assembly diagram of the dehumidifier provided in an embodiment of this application;

[0020] Figure 2 This is a partial exploded view of a dehumidifier provided in an embodiment of this application;

[0021] Figure 3 This is a partial structural schematic diagram of the dehumidifier provided in the embodiments of this application;

[0022] Figure 4 for Figure 3 The dehumidifier shown is a longitudinal sectional view.

[0023] Figure 5 for Figure 3 A three-dimensional view of the ultraviolet generator in the dehumidifier shown;

[0024] Figure 6 for Figure 5 A partial cross-sectional view of the ultraviolet generator shown.

[0025] Figure 7 for Figure 5 An exploded view of the ultraviolet generator shown.

[0026] Figure 8 for Figure 5 A three-dimensional view of the ultraviolet generator from another angle.

[0027] The following are the labeling elements in the figure:

[0028] 10-Frame; 20-Heat exchanger; 30-UV generator; 110-Top plate; 111-Rib; 112-Connecting column; 201-Sterilization space; 21-Evaporator; 22-Condenser; 31-Circuit board; 32-UVC-LED lamp bead; 33-Fixing bracket; 34-Sealing sleeve; 35-Light-transmitting sheet; 310-Positioning hole; 311-Snap hole; 330-Notch; 331-Light shield; 3310-Retaining ring; 3311-Step; 332-Positioning column; 333-Snap fastener; 334-Reinforcing rib; 335-Reinforcing column; 336-Connecting part; 3360-Connecting hole; 3361-Reinforcing plate; 337-Protruding rib; 338-Allowing groove; 340-Protruding ring; 341-First sealing rib; 342-Second sealing rib; 343-Annular groove. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] Please refer to the following: Figures 1 to 4 The dehumidifier provided in this application embodiment will now be described. The dehumidifier includes a casing, and a heat exchanger 20 and an ultraviolet generator 30 disposed within the casing. The casing has a frame 10, on which the heat exchanger 20 is mounted and fixed. The heat exchanger 20 includes an evaporator 21 and a condenser 22, which are arranged vertically side-by-side with a fixed spacing between them. The casing also includes a compressor and a fan. The compressor is connected to the heat exchanger 20 via a pipe, and the fan is located on the air outlet side of the heat exchanger 20. A filter assembly is also provided on the frame 10, located on the air inlet side of the heat exchanger 20.

[0034] The ultraviolet (UV) generator 30 is fixed on the frame 10 and located above the heat exchanger 20. The UV generator 30 emits a UV beam. The UV beam emitted by the UV generator 30 is directed towards the space between the evaporator 21 and the condenser 22. This ensures that the UV light directly hits the necessary airflow path, and the space is unobstructed, thus enhancing the sterilization effect and increasing the sterilization rate. In other words, a sterilization space 201 is formed between the evaporator 21 and the condenser 22. The UV beam emitted by the UV generator 30 is directed towards this sterilization space 201. Specifically, short-wave sterilization UVC (UVC) destroys the DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) molecular structure of bacteria, viruses, or microorganisms in the airflow, causing them to die, thereby achieving the purpose of disinfection and sterilization. Compared to placing the sterilization module on the air inlet side, placing the ultraviolet generator 30 above the evaporator 21 and condenser 22 not only allows it to directly irradiate the necessary airflow and exchange points, but also significantly improves the sterilization rate.

[0035] Specifically, the ultraviolet (UV) generator 30 includes a circuit board 31 and multiple UVC-LED beads 32 mounted on the circuit board 31. UVC-LEDs, or Ultraviolet C-Light Emitting Diodes, emit light waves with a wavelength range of 200-280 nm. Each UVC-LED bead is located directly above the sterilization space 201. Each UVC-LED bead 32 emits a UVC-band ultraviolet beam. The number of UVC-LED beads 32 can be increased or decreased according to actual needs. This allows the ultraviolet beam to irradiate the gas flowing between the evaporator 21 and the condenser 22, sterilizing the gas throughout the space and meeting sterilization requirements. Furthermore, traditional UV lamps contain mercury, which can leak mercury vapor if the lamp breaks or ruptures. The UV generator 30 in this application does not contain mercury, thus improving safety.

[0036] Compared with the prior art, the dehumidifier provided in this application, by placing the ultraviolet generator 30 directly above the space between the evaporator 21 and the condenser 22, allows the ultraviolet light emitted by the ultraviolet generator 30 to directly irradiate the space between the evaporator 21 and the condenser 22. In this way, the ultraviolet light irradiates the necessary passage for air circulation and exchange, and the space at this location is unobstructed, thereby greatly improving the sterilization effect.

[0037] Specifically, see Figures 5 to 7 Multiple UVC-LED beads 32 are arranged in a straight line on the bottom surface of the circuit board 31. Each UVC-LED bead 32 is located directly above the space between the evaporator 21 and the condenser 22, ensuring that the ultraviolet light beam irradiates the gas in the sterilization space 201 more evenly, thus improving the sterilization effect. In this embodiment, four UVC-LED beads 32 are arranged in a straight line on the circuit board 31, parallel to the length of the circuit board 31. The UVC-LED beads 32 can emit deep ultraviolet light beams in the wavelength range (200-280nm). The number of UVC-LED beads 32 can be increased or decreased according to the actual length of the heat exchanger 20, so that the light beam emitted by the UVC-LED beads 32 of the ultraviolet generating device 30 can irradiate all positions between the evaporator 21 and the condenser 22, meeting the sterilization requirements.

[0038] The circuit board 31 is made of aluminum plate with printed circuitry on its surface. These circuits provide power to each UVC-LED chip 32 and control their on / off states. Aluminum plate has good thermal conductivity, thus meeting heat dissipation requirements. Understandably, the circuit board 31 can also be made of other materials with good thermal conductivity.

[0039] See Figure 1 , Figure 2and Figure 7 The ultraviolet (UV) generator 30 also includes a mounting bracket 33. The mounting bracket 33 is connected and fixed to the circuit board 31, and can be made of heat-resistant and anti-aging materials. The mounting bracket 33 is also connected and fixed to the frame 10 inside the dehumidifier, thus the entire UV generator 30 is relatively fixed above the heat exchanger 20 via the mounting bracket 33. Specifically, the mounting bracket 33 has an upwardly extending connecting portion 336 on the side away from the evaporator 21. The connecting portion 336 has multiple connecting holes 3360, through which screws are passed to connect and fix it to the frame 10, thus installing and fixing the mounting bracket 33 and the frame 10. Multiple reinforcing plates 3361 are respectively provided on the front and back surfaces of the connecting portion 336. The reinforcing plates 3361 are perpendicular to the surface of the connecting portion 336, and the reinforcing plates 3361 are spaced apart, thus improving the structural strength of the connecting portion 336. Understandably, the surface of the connecting portion 336 can also be provided with other structures or combinations of structures to enhance structural strength, such as multiple raised strips and / or ribs.

[0040] See Figure 7 and Figure 8 A positioning structure is provided between the mounting bracket 33 and the circuit board 31 to improve the assembly efficiency between them. Specifically, the mounting bracket 33 has multiple positioning posts 332, and the circuit board 31 has multiple corresponding positioning holes 310. The mounting bracket 33 has at least two clips 333, and the circuit board 31 has corresponding locking holes 311. During installation, the positioning posts 332 are inserted into the corresponding positioning holes 310, and the clips 333 are engaged in the corresponding locking holes 311, thus completing the initial installation between the mounting bracket 33 and the circuit board 31. Then, the mounting bracket 33 and the circuit board 31 can be connected and fixed with screws. The positioning posts 332 can be cross-shaped posts with rounded ends to facilitate positioning and installation.

[0041] The top surface of the mounting bracket 33 is also provided with a protruding rib 337. The shape formed by the protruding rib 337 is adapted to the shape of the circuit board 31 or a part of the circuit board 31. In this way, the positioning effect of the protruding rib 337 improves the efficiency of positioning and installing the circuit board 31 on the mounting bracket 33 and brings convenience to the assembly.

[0042] Please see Figure 5 , Figure 7The mounting bracket 33 has a notch 330 on one side, which forms a mounting position for a heat sink. This allows for the installation of a heat sink at the notch 330 when there are a large number of UVC-LED beads 32 on the circuit board 31, further improving the heat dissipation performance of the ultraviolet generator 30. In other words, the mounting bracket 33 has a pre-reserved mounting position for a heat sink. After installation, one side of the heat sink abuts against one side of the circuit board 31 to meet the increased power dissipation requirements when multiple UVC-LED beads 32 are operating.

[0043] See Figures 5 to 7 The bottom surface of the mounting bracket 33 is provided with multiple light-shielding cylinders 331, and a sealing sleeve 34 is sealed inside each light-shielding cylinder 331. Each light-shielding cylinder 331 is positioned corresponding to a UVC-LED lamp bead 32, and the sealing sleeve 34 covers the outer side of the UVC-LED lamp bead 32. Both the light-shielding cylinder 331 and the sealing sleeve 34 are cylindrical bodies with openings at both ends along the axial direction. The light-shielding cylinder 331 is integrally formed with the mounting bracket 33, and the sealing sleeve 34 may be made of, but is not limited to, silicone material.

[0044] The sealing sleeve 34 has a first end and a second end, and the end face of the first end of the sealing sleeve 34 is in sealing contact with the circuit board 31. At least one first sealing rib 341 is protruding from the end face of the first end of the sealing sleeve 34, and the first sealing rib 341 is in sealing contact with the circuit board 31. In this way, the sealing installation effect can be improved by setting the first sealing rib 341.

[0045] An annular retaining ring 3310 is provided at the end of the light-shielding cylinder 331 away from the circuit board 31. The end face of the second end of the sealing sleeve 34 is in sealing contact with the retaining ring 3310, and the width of the retaining ring 3310 is adapted to the sealing sleeve 34. At least one second sealing rib 342 is protruding from the end face of the second end of the sealing sleeve 34. The second sealing rib 342 is in sealing contact with the retaining ring 3310. In this way, the sealing installation effect between the light-shielding cylinder 331 and the sealing sleeve 34 is improved by setting the second sealing rib 342. The setting of the ultraviolet generating device 30 and the sealing structure of the UVC-LED lamp bead 32 ensure that no humid air enters the UVC-LED lamp bead 32 during the dehumidification process, while achieving maximum space disinfection, improving the sterilization rate, and ensuring that there is no scattered light that may harm people and animals during use, making it safe and reliable.

[0046] A light-transmitting sheet 35 is installed and fixed inside the sealing sleeve 34. The light beam emitted by the UVC-LED lamp bead 32 passes through the light-transmitting sheet 35 and exits through the opening at the bottom of the sealing sleeve 34 and the light-shielding tube 331, and then shines into the space between the evaporator 21 and the condenser 22. An annular groove 343 is provided inside the sealing sleeve 34 near the second end, through which the light-transmitting sheet 35 is installed and fixed inside the sealing sleeve 34. Specifically, the light-transmitting sheet 35 can be, but is not limited to, a glass sheet. The periphery of the circular glass sheet is inserted into the annular groove 343, so that the glass sheet and the sealing sleeve 34 are assembled and fixed to form a sealing fit.

[0047] The first end of the sealing sleeve 34 extends radially outward to form a convex ring 340. The light-shielding tube 331 has an annular step 3311 inside. The convex ring 340 elastically abuts against the step 3311. By setting the convex ring 340 and the matching step 3311, the assembly operation between the sealing sleeve 34 and the light-shielding tube 331 is simple and convenient. After the sealing sleeve 34 is assembled, it can form an effective sealing fit with the light-shielding tube 331.

[0048] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 A fan (not shown) is provided on one side of the frame 10. The side closer to the evaporator 21 is the air inlet side, and the side farther from the evaporator 21 is the air outlet side. The frame 10 has a top plate 110 directly above the heat exchanger 20. The upper surface of the top plate 110 has two spaced ribs 111 protruding from it. The frame 10 also has two connecting posts 112, which are connected to the fixing frame 33 by screws, thus fixing the ultraviolet generator 30 to the frame 10. The circuit board 31 and the fixing frame 33 have corresponding clearance grooves 338 to avoid the protruding ribs 111 when the ultraviolet generator 30 is installed on the frame 10. Understandably, the clearance grooves 338 on the circuit board 31 and the mounting bracket 33 are not necessary. When there are no ribs 111 at the mounting position of the frame 10 directly above the heat exchanger 20, the clearance grooves 338 can be omitted. The mounting method of the mounting bracket 33 and the frame 10 is not limited to the structure shown in the figure. When the specific structure of the dehumidifier frame 10 changes, the structure of the mounting bracket 33 and the connection and installation position with the frame 10 can be changed accordingly to suit the structure and shape of the frame 10.

[0049] See Figures 5 to 7The bottom surface of the mounting bracket 33 is provided with reinforcing ribs 334, which are located on the outer periphery of the light-shielding cylinder 331. Multiple reinforcing posts 335 are spaced circumferentially around the reinforcing ribs 334. The reinforcing posts 335 are connected to the outer peripheral wall of the light-shielding cylinder 331 via rib positions. This effectively improves the structural strength of the light-shielding cylinder 331, preventing scratches or damage to the internal UVC-LED beads 32 due to impact. In some cases, the reinforcing ribs 334 are not arranged in a ring, and reinforcing posts 335 are also provided on them. The reinforcing posts 335 are connected to the nearby outer peripheral wall of the light-shielding cylinder 331 via rib positions. Understandably, the bottom surface of the mounting bracket 33 can also be provided with other protruding structures or combined structures to improve the structural strength of the light-shielding cylinder 331 and the overall structural strength of the mounting bracket 33.

[0050] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dehumidifier, characterized in that: include: chassis; A heat exchanger includes an evaporator and a condenser disposed within the housing, wherein the evaporator and the condenser are spaced apart and form a sterilization space; An ultraviolet (UV) generator is installed inside the housing and above the heat exchanger. The UV generator emits a UV beam and irradiates the gas passing through the sterilization space.

2. The dehumidifier as described in claim 1, characterized in that: The ultraviolet generating device includes a circuit board and a plurality of UVC-LED beads spaced apart on the circuit board, with each UVC-LED bead located directly above the sterilization space.

3. The dehumidifier as described in claim 2, characterized in that: Multiple UVC-LED beads are arranged in a straight line on the circuit board.

4. The dehumidifier as described in claim 2, characterized in that: The circuit board is an aluminum plate with printed circuitry on its surface.

5. The dehumidifier as described in claim 2, characterized in that: The ultraviolet generator also includes a mounting bracket that is fixedly connected to the circuit board. The mounting bracket is at least partially stacked under the circuit board and is fixedly connected to a frame inside the housing.

6. The dehumidifier as described in claim 5, characterized in that: The mounting bracket has a notch on one side to form a mounting position for installing a radiator.

7. The dehumidifier as described in claim 5, characterized in that: The bottom surface of the mounting bracket is provided with a light-shielding tube corresponding to the position of each UVC-LED lamp bead. The two ends of the light-shielding tube are open in the axial direction. A sealing sleeve is sealed inside the light-shielding tube. The two ends of the sealing sleeve are open in the axial direction. A light-transmitting sheet is sealed and fixed inside the sealing sleeve. The sealing sleeve covers the UVC-LED lamp bead and is in sealed contact with the circuit board.

8. The dehumidifier as described in claim 7, characterized in that: At least one first sealing rib is protruding from one end face of the sealing sleeve along the axial direction, and the first sealing rib is in sealing contact with the circuit board.

9. The dehumidifier as described in claim 7, characterized in that: The light-shielding tube is provided with an annular retaining ring near the bottom, and the other end face of the sealing sleeve in the axial direction is in sealing contact with the retaining ring; at least one second sealing rib is protruding from the other end face of the sealing sleeve in the axial direction, and the second sealing rib is in sealing contact with the retaining ring.

10. The dehumidifier according to any one of claims 5-9, characterized in that: The mounting bracket has an upwardly extending connecting part on one side, which is connected and fixed to the frame by screws.

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