Dishwasher with air purification function

Abstract

The utility model relates to a dish washer with air purification function, including box and control system, the inside formation of washing cavity of box, be provided with air purification device with washing cavity intercommunication on the box, air purification device includes device shell, and the inside limitation of device shell with the circulation air flue that communicates with washing cavity, be provided with fan assembly for driving air circulation flow in the circulation air flue along the air direction, the photocatalytic air purification module for sterilization and deodorization, photocatalytic air purification module and fan assembly are electric connection with control system respectively, install this air purification device in the dish washer, through photocatalytic air purification module in air purification device, can effectively purify the peculiar smell in washing cavity and play the sterilization effect.

Description

Technical Field

[0001] This utility model relates to the field of dishwashers, specifically a dishwasher with an air purification function. Background Technology

[0002] Currently, dishwashers may have residual food waste and grease in their drain pipes or inside, which can cause unpleasant odors. Therefore, some dishwashers, such as the one described in Chinese patent document application number 202110501138.X, disclose a system including an inner tub, a fan, and an air purification device. The air purification device is used to purify and sterilize the air blown into the cleaning chamber by the fan. This air purification device is implemented using a cold catalyst or an ion generator, but both of these methods have very weak effects, and the actual purification function of this structure is minimal. Therefore, this applicant proposes a new air purification solution for dishwashers to solve the above problems and provide consumers with an option to use it. Utility Model Content

[0003] The purpose of this invention is to solve the aforementioned problems and provide a dishwasher with a simple and reasonable structure and an air purification function.

[0004] A dishwasher with air purification function includes a cabinet and a control system. The cabinet has a cleaning chamber inside, and an air purification device communicating with the cleaning chamber is provided on the cabinet. The air purification device includes a housing, and a circulating air duct communicating with the cleaning chamber is defined inside the housing. A fan assembly for driving air circulation and a photocatalytic air purification module for sterilization and deodorization are arranged along the airflow direction in the circulating air duct. The photocatalytic air purification module and the fan assembly are electrically connected to the control system.

[0005] The objective of this utility model can also be achieved by the following technical measures: As a more specific embodiment, the photocatalytic air purification module includes a catalytic carrier and an ultraviolet lamp plate. The ultraviolet lamp plate is spaced apart on the windward side of the catalytic carrier, and the ultraviolet lamp plate has a number of lamp beads that irradiate ultraviolet light toward the catalytic carrier.

[0006] As a more specific embodiment, the catalyst support includes a porous support and a photocatalyst layer, wherein the porous support is disposed at the airflow cross-sectional area of ​​one location in the circulating air duct, and the photocatalyst layer is disposed on the surface of the porous support.

[0007] As a further embodiment, the bottom wall of the device housing is provided with an air inlet and an air outlet, and a circulating air duct is formed between the air inlet and the air outlet along a plane direction, wherein the fan assembly is arranged corresponding to the position of the air inlet, and the photocatalytic air purification module is arranged corresponding to the position of the air outlet.

[0008] As a further embodiment, the fan assembly includes a centrifugal impeller and a motor. The centrifugal impeller is disposed in the circulating air duct and located above the air inlet. The centrifugal impeller is coaxially arranged with the air inlet. The motor is assembled and connected to the outer casing of the device and is drivenly connected to the centrifugal impeller.

[0009] As a further embodiment, the catalyst carrier is disposed on the upper side of the air outlet, the ultraviolet lamp plate is disposed on the upper side of the catalyst carrier, and the catalyst carrier, ultraviolet lamp plate and air outlet are coaxially arranged.

[0010] As a further embodiment, the porous carrier is a photocatalytic foam ceramic plate, which includes a foam ceramic plate and a titanium dioxide surface layer. The surface of the foam ceramic plate is provided with several breathable pores, and the titanium dioxide surface layer is formed by sintering titanium dioxide on the surface of the foam ceramic plate.

[0011] As a further embodiment, the inner wall surface of the device housing between the air inlet and the air outlet forms a drainage slope, which is inclined downwards from the middle position between the two towards the air inlet or the air outlet.

[0012] As a further embodiment, the air inlet and air outlet are also connected to a perforated vent cover, and the vent cover is provided with a guide hood extending into the air inlet or air outlet, and the catalyst carrier is softly sealed and fixed inside the guide hood.

[0013] As a further solution, the housing has installation openings at the positions corresponding to the air inlet and air outlet, and the vent cover is connected to the air inlet and air outlet through a quick-release structure, so that the housing is clamped between the device shell and the vent cover, thereby realizing the assembly and connection of the air purification device on the housing.

[0014] The beneficial effects of this utility model are as follows: This invention relates to a dishwasher with an air purification function, which applies photocatalytic purification technology to the dishwasher. The photocatalytic air purification module in the air purification device works in conjunction with the ultraviolet module to improve the purification effect, effectively purifying odors in the cleaning chamber and sterilizing it. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the air purification device installed in the housing structure of this utility model.

[0016] Figure 2 This is a cross-sectional structural diagram of the air purification device in this utility model.

[0017] Figure 3 This is a schematic cross-sectional view of the photocatalytic air purification module in this utility model.

[0018] Figure 4 This is an exploded view of the air purification device in this utility model.

[0019] Figure 5 This is a schematic diagram of the installation structure of the photocatalytic air purification module and the ultraviolet module in this utility model.

[0020] Figure 6 This is a schematic diagram of the breathable cover structure in this utility model.

[0021] Figure 7 This is a schematic diagram of the installation structure of the air purification device in this utility model. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] See Figures 1 to 7 As shown, a dishwasher with air purification function includes a cabinet 1 and a control system. The cabinet 1 forms a cleaning chamber 101 inside. An air purification device 2 communicating with the cleaning chamber 101 is provided on the cabinet 1. The air purification device 2 includes a device housing 3. The device housing 3 defines a circulation duct 301 communicating with the cleaning chamber 101. A fan assembly 4 for driving air circulation and a photocatalytic air purification module 6 for sterilization and deodorization are arranged along the airflow direction in the circulation duct 301. The photocatalytic air purification module 6 and the fan assembly 4 are electrically connected to the control system.

[0024] The application of photocatalytic purification technology to dishwashers, including the photocatalytic air purification module in the air purification device, improves the purification effect and can effectively remove odors in the cleaning chamber and play a bactericidal role.

[0025] The photocatalytic air purification module 6 includes a catalyst carrier 5 and an ultraviolet lamp plate 61. The ultraviolet lamp plate 61 is spaced apart on the windward side of the catalyst carrier 5. The ultraviolet lamp plate 61 is provided with a plurality of light-emitting beads 62 that irradiate ultraviolet light toward the catalyst carrier. The light-emitting beads 62 emit ultraviolet light with a wavelength of 365nm, which provides energy to the catalyst carrier 5.

[0026] The catalyst support 5 includes a porous support 51 and a photocatalyst layer 52. The porous support 51 is disposed at the airflow cross-sectional area of ​​one position in the circulation duct 301, and the photocatalyst layer 52 is disposed on the surface of the porous support 51. Specifically: the porous carrier 51 is a photocatalytic foam ceramic plate, which includes a foam ceramic plate and a titanium dioxide surface layer. The surface of the foam ceramic plate is provided with several air-permeable pores, and the titanium dioxide surface layer is formed by sintering titanium dioxide on the surface of the foam ceramic plate. The inner wall of the device housing 3 is provided with several inverted blocks 31. The inverted blocks 31 are arranged along the edge of the ultraviolet lamp plate 61. The ultraviolet lamp plate 61 is connected to the device housing 3 by the snapping of the inverted blocks 31. The inner wall extends a limiting protrusion 32 corresponding to the center of the ultraviolet lamp plate 61. The ultraviolet lamp plate 61 avoids the limiting protrusion 32 and makes the limiting protrusion 32 abut against the top surface of the catalyst carrier 5, which plays a limiting role, so that the catalyst carrier 5 and the ultraviolet lamp plate 61 can be spaced apart, leaving a gap for air flow and ultraviolet light irradiation.

[0027] The photocatalytic air purification module 6 uses a foam ceramic plate as the carrier of the photocatalyst. The porous structure formed by the foam ceramic plate is conducive to full contact with the air. Combined with the ultraviolet light source irradiating the front of the photocatalyst, it can achieve the effects of disinfection, sterilization and odor removal.

[0028] The photocatalytic foam ceramic plate and ultraviolet lamp plate of the aforementioned photocatalytic air purification module 6 are existing products. Their specific performance, process and materials can be found in two patent documents filed by our company: CN214051153U (announcement date August 27, 2021, title: Photocatalytic Unit and Air Purifier) ​​and CN 110871061B (July 26, 2022, title: A Photocatalytic Unit and Its Photocatalytic Method).

[0029] The bottom wall of the device housing 3 is provided with an air inlet 302 and an air outlet 303, and a circulating air duct 301 is formed between the air inlet 302 and the air outlet 303, which flows in a plane direction. The fan assembly 4 is positioned corresponding to the air inlet 302, and the photocatalytic air purification module 6 is positioned corresponding to the air outlet 303. Arranging the air inlet 302 and the air outlet 303 at the bottom of the device housing 3 enables the air purification device 2 to achieve an ultra-thin design, reduces the requirements for installation space, and makes the air purification device 2 easier to install.

[0030] The fan assembly 4 includes a centrifugal impeller 41 and a motor 42. The centrifugal impeller 41 is disposed in the circulation duct 301 and located above the air inlet 302. The centrifugal impeller 41 is coaxially arranged with the air inlet 302. The motor 42 is mounted and connected to the outer shell 3 of the device and is drivenly connected to the centrifugal impeller 41. The fan assembly 4 with this structure can utilize the characteristics of the centrifugal impeller 41 to allow the air to be reversed after entering the circulation duct 301, so that the centrifugal impeller 41 will not occupy too much space in the outer shell 3 of the device and maintain the ultra-thin shape of the outer shell 3 of the device.

[0031] The catalytic carrier 5 is disposed on the upper side of the air outlet 303, and the ultraviolet lamp plate 61 is disposed on the upper side of the catalytic carrier 5. The catalytic carrier 5, the ultraviolet lamp plate 61 and the air outlet 303 are coaxially arranged, which allows the air to fully contact the photocatalytic air purification module 6.

[0032] The inner wall surface of the device housing 3 between the air inlet 302 and the air outlet 303 forms a drainage slope 304. The drainage slope 304 is inclined downward from the middle position of the two towards the air inlet 302 or the air outlet 303. The drainage slope 304 of this structure helps to discharge water in the device housing 3 through the air inlet 302 or the air outlet 303, and avoids water remaining in the device housing 3.

[0033] The air inlet 302 and air outlet 303 are also connected to a perforated vent cover 7. The vent cover 7 is provided with an air guide shroud 71 extending into the air inlet 302 or air outlet 303. The catalyst carrier 5 is softly sealed and fixed inside the air guide shroud 71. The vent cover 7 has a protective function, which can prevent food residue from entering the circulation air duct 301. The air guide shroud 71 can keep the inner wall of the circulation air duct 301 smooth, which helps to increase the speed of air flow and reduce turbulence caused by air collision.

[0034] In addition, a drain outlet 712 is provided at the bottom of the air guide cover 71. When water on the drainage slope 304 flows into the edge of the vent cover 7, the water on the vent cover 7 flows through the drain outlet 712 to the middle of the vent cover 7, and finally is discharged from the vent cover 7 through the ventilation holes on the vent cover 7.

[0035] The housing 1 has an installation port 102 at the positions corresponding to the air inlet 302 and the air outlet 303. The vent cover 7 is connected to the air inlet 302 and the air outlet 303 through a quick-release structure, so that the housing 1 is clamped between the device housing 3 and the vent cover 7, and the air purification device 2 is assembled and connected to the housing 1.

[0036] The quick-release structure includes several limiting fasteners 711 circumferentially arranged on the outer wall of the air guide cover 71. The inner side of the air inlet 302 and the air outlet 303 is provided with L-shaped fastening protrusions 305 that are circumferentially engaged with the limiting fasteners 711. The limiting fasteners 711 and the L-shaped fastening protrusions 305 are rotated and engaged to realize the quick-release of the vent cover 7.

[0037] In addition, a sealing ring 8 is fitted around the outer periphery of the device housing 3 at the air inlet 302 and the air outlet 303. After the device housing 3 is fastened to the box 1 by the vent cover 7, the sealing ring 8 abuts against the box 1 and seals the gap between the device housing 3 and the mounting port 102.

[0038] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A dishwasher with air purification function, comprising a cabinet (1) and a control system, wherein a cleaning chamber (101) is formed inside the cabinet (1), and an air purification device (2) communicating with the cleaning chamber (101) is provided on the cabinet (1), characterized in that: The air purification device (2) includes a device housing (3), and the device housing (3) defines a circulating air duct (301) that communicates with the cleaning chamber (101). The circulating air duct (301) is provided with a fan assembly (4) for driving air circulation and a photocatalytic air purification module (6) for sterilization and deodorization along the wind direction. The photocatalytic air purification module (6) and the fan assembly (4) are electrically connected to the control system.

2. A dishwasher with air purification function according to claim 1, characterized in that: The photocatalytic air purification module (6) includes a catalyst carrier (5) and an ultraviolet lamp plate (61). The ultraviolet lamp plate (61) is spaced apart on the windward side of the catalyst carrier (5). The ultraviolet lamp plate (61) is provided with a number of light-emitting lamp beads (62) that irradiate ultraviolet light toward the catalyst carrier.

3. A dishwasher with air purification function according to claim 2, characterized in that: The catalyst support (5) includes a porous support (51) and a photocatalyst layer (52). The porous support (51) is disposed at the air flow cross-sectional area of ​​one position in the circulating air duct (301), and the photocatalyst layer (52) is disposed on the surface of the porous support (51).

4. A dishwasher with air purification function according to claim 2, characterized in that: The bottom wall of the device housing (3) is provided with an air inlet (302) and an air outlet (303). A circulating air duct (301) is formed between the air inlet (302) and the air outlet (303) along a plane direction. The fan assembly (4) is positioned corresponding to the air inlet (302), and the photocatalytic air purification module (6) is positioned corresponding to the air outlet (303).

5. A dishwasher with air purification function according to claim 4, characterized in that: The fan assembly (4) includes a centrifugal impeller (41) and a motor (42). The centrifugal impeller (41) is located inside the circulating air duct (301) and above the air inlet (302). The centrifugal impeller (41) is coaxially arranged with the air inlet (302). The motor (42) is mounted and connected to the outer casing (3) of the device and is connected to the centrifugal impeller (41) in a transmission connection.

6. A dishwasher with air purification function according to claim 4, characterized in that: The catalyst carrier (5) is disposed on the upper side of the air outlet (303), and the ultraviolet lamp plate (61) is disposed on the upper side of the catalyst carrier (5). The catalyst carrier (5), the ultraviolet lamp plate (61) and the air outlet (303) are coaxially disposed.

7. A dishwasher with air purification function according to claim 3, characterized in that: The porous carrier (51) is a photocatalytic foam ceramic plate, which includes a foam ceramic plate and a titanium dioxide surface layer. The surface of the foam ceramic plate is provided with several air-permeable pores, and the titanium dioxide surface layer is formed by sintering titanium dioxide on the surface of the foam ceramic plate.

8. A dishwasher with air purification function according to claim 4, characterized in that: The inner wall surface of the device housing (3) between the air inlet (302) and the air outlet (303) forms a drainage slope (304), which is inclined downward from the middle position of the two towards the air inlet (302) or the air outlet (303).

9. A dishwasher with air purification function according to claim 4, characterized in that: The air inlet (302) and air outlet (303) are also connected to a perforated vent cover (7). The vent cover (7) is provided with a guide hood (71) extending into the air inlet (302) or air outlet (303). The catalyst carrier (5) is softly sealed and fixed inside the guide hood (71).

10. A dishwasher with air purification function according to claim 1, characterized in that: The housing (1) has an installation port (102) at the position corresponding to the air inlet (302) and the air outlet (303). The vent cover (7) is connected to the air inlet (302) and the air outlet (303) through a quick-release structure, so that the housing (1) is clamped between the outer shell (3) of the device and the vent cover (7), and the air purification device (2) is assembled and connected to the housing (1).

Images