Self-disinfecting fans and fans with disinfection function

Abstract

The present invention discloses a self-disinfecting fan, which includes a casing, a motor and an impeller. The casing is provided with an air inlet and an air outlet. A disinfection component is integrated at the air inlet of the casing. The disinfection component includes a shroud, an ultraviolet lamp and at least one layer of photocatalyst net. The shroud is fixed at the air inlet of the casing. An air inlet space is provided between the shroud and the casing. The ultraviolet lamp and the photocatalyst net are provided in the air inlet space, and the photocatalyst net covers the air inlet. The self-disinfecting fan integrates a disinfection structure, has a disinfection function, and has smooth air intake. The present invention also discloses a fan with a disinfection function, which includes a fan housing and a self-disinfecting fan. The fan housing is provided with an air exhaust port and an air blowing port. An air guide is provided in the fan housing. The self-disinfecting fan is installed at the air exhaust port. The self-disinfecting fan draws air from the air exhaust port. The air guide is connected to the air outlet and the air blowing port of the self-disinfecting fan. The air flow of the fan is smooth during use.

Description

Technical Field

[0001] The invention relates to a self-disinfecting fan and also to a fan with a disinfecting function. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Fans are widely used in buildings, factories and other spaces to achieve ventilation and cooling. For example, a household vertical fan uses a fan to drive gas flow, and a factory ventilation system also uses a fan to drive gas flow.

[0003] With the improvement of living standards, people have higher and higher requirements for environmental hygiene. In order to disinfect and sterilize the environment they live in, they will choose to purchase an air disinfector. However, purchasing an air disinfector will undoubtedly increase costs and increase floor space.

[0004] In order to disinfect and sterilize the air without purchasing an air disinfector, a disinfection and sterilization device that can be installed in equipment such as fans and ventilation systems has emerged, such as a combined labyrinth-type gas-liquid disinfection and sterilization device disclosed in Chinese patent No. 200610035126.8, which achieves an ideal sterilization and disinfection effect.

[0005] However, the existing equipments all directly add disinfection and sterilization devices on the channels through which the gas flows. The structure of adding disinfection and sterilization devices directly on the channels will produce obvious resistance to the flow of air. Summary of the invention

[0006] The first technical problem to be solved by the present invention is to provide a self-disinfecting blower, which has an integrated disinfection structure and has a disinfection function and smooth air intake.

[0007] The second technical problem to be solved by the present invention is to provide a fan with a disinfection function, in which the air flows smoothly during use.

[0008] To solve the above-mentioned first technical problem, the technical solution adopted by the present invention is as follows:

[0009] A self-disinfecting blower comprises a casing, a motor and an impeller. The casing is provided with an air inlet and an air outlet. The blower is characterized in that a disinfection component is integrated at the air inlet of the casing, the disinfection component comprises a shroud, an ultraviolet lamp and at least one layer of photocatalyst net, the shroud is fixed at the air inlet of the casing, an air inlet space is provided between the shroud and the casing, the ultraviolet lamp and the photocatalyst net are arranged in the air inlet space, the photocatalyst net covers the air inlet, and the ultraviolet rays emitted by the ultraviolet lamp irradiate the photocatalyst net.

[0010] Furthermore, the photocatalyst nets are sequentially covered at the air inlet layer by layer, and gaps are provided between the photocatalyst nets.

[0011] Furthermore, the middle portion of the photocatalyst net is concave inwardly, and the concave portion is close to the impeller.

[0012] Furthermore, the ultraviolet lamp comprises an outer ultraviolet lamp, and the outer ultraviolet lamp is arranged on the inner surface of the air guide cover.

[0013] Furthermore, the ultraviolet lamp includes an inner ultraviolet lamp, and the inner ultraviolet lamp is arranged in the middle of the air inlet.

[0014] Furthermore, a first side air outlet connected to the air inlet space is provided between the periphery of the air deflector and the casing, a central air outlet is opened in the middle of the air deflector, a central air guide plate is provided on the outer side of the central air outlet, and a second side air outlet connected to the air inlet space is provided between the periphery of the central air guide plate and the air deflector.

[0015] Furthermore, the ultraviolet lamp is a UVC ultraviolet lamp.

[0016] To solve the above second technical problem, the technical solution adopted by the present invention is as follows:

[0017] A fan with a disinfection function is characterized in that it includes a fan housing and the above-mentioned self-disinfecting fan, the fan housing is provided with an air exhaust port and an air blowing port, the fan housing is provided with an air duct, the self-disinfecting fan is installed at the air exhaust port, the self-disinfecting fan draws air from the air exhaust port, and the air duct connects the air outlet and the air blowing port of the self-disinfecting fan.

[0018] Furthermore, the fan also includes a disinfection and sterilization device, which is installed in the fan housing. A branch air inlet is provided on the fan housing corresponding to the air inlet end of the disinfection and sterilization device. The air outlet end of the disinfection and sterilization device is connected to the air inlet space. During use, a portion of the air extracted from the disinfection fan will flow through the disinfection and sterilization device.

[0019] Furthermore, the disinfection and sterilization device is a combined labyrinth type gas-liquid disinfection and sterilization device.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The fan of the present invention directly integrates a disinfection component at the air inlet of the casing, so that the fan itself has a disinfection function and can be directly used in other equipment, thereby simplifying the structure of other equipment. After the disinfection component and the fan become an integral component, they can be better designed and assembled on other equipment and have a wide range of applications.

[0022] 2. The disinfection assembly of the present invention guides the airflow through the air inlet space through the guide cover and through the photocatalyst net covering the air inlet. The photocatalyst net irradiated by ultraviolet rays effectively disinfects the air. The mesh photocatalyst net does not produce too much resistance to the air, so the air intake is smooth.

[0023] 3. The fan of the present invention uses the above-mentioned self-disinfecting fan, which has a disinfection function and smooth air intake.

[0024] 4. The fan of the present invention can also be provided with a disinfection and sterilization device in the form of a branch air intake. During use, under the negative pressure formed by the fan exhaust, a portion of air will always pass through the disinfection and sterilization device for efficient sterilization and disinfection. In this way, the indoor air can be purified and disinfected better and faster. Since the disinfection and sterilization device is provided in the form of a branch, the resistance to the airflow during use by the disinfection and sterilization device is very small. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 1 is a three-dimensional schematic diagram of a self-disinfecting blower according to a first embodiment of the present invention;

[0026] Figure 2 Schematic diagram of an explosion of a self-disinfecting blower according to Embodiment 1 of the present invention;

[0027] Figure 3 is a partial cross-sectional schematic diagram of a self-disinfecting blower according to Embodiment 1 of the present invention;

[0028] Figure 4 is a perspective schematic diagram of a fan according to Embodiment 1 of the present invention;

[0029] Figure 5 It is a perspective schematic diagram of a fan according to the second embodiment of the present invention.

[0030] Meaning of reference numerals in the figure:

[0031] 1-self-disinfecting fan; 11-casing; 111-air outlet; 112-air inlet; 113-fixing ribs; 12-motor; 13-inner ultraviolet lamp; 14-impeller; 15-photocatalyst net; 151-depressed part; 16-outer ultraviolet lamp; 17-air guide cover; 171-middle air guide plate; 172-fixing ring; 173-middle air outlet; 18-air inlet space; 19-first side air outlet; 20-second side air outlet; 2-fan casing; 21-exhaust outlet; 22-air guide duct; 23-blowing outlet; 24-branch air inlet; 3-combined labyrinth type gas-liquid disinfection and sterilization device; 4-air duct. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with embodiments.

[0033] Embodiment 1:

[0034] like Figures 1 to 3 The self-disinfecting fan 1 of the first embodiment is shown, which is a centrifugal fan including a casing 11 , a motor 12 and an impeller 14 .

[0035] The housing 11 is provided with an air inlet 112 and an air outlet 111, wherein the air inlet 112 is located at the front of the housing 11, and the air outlet 111 is located at the upper end of the housing 11. The impeller 14 is installed in the housing 11, and the motor 12 is installed at the back of the housing 11, and the output shaft of the motor 12 is connected to the impeller 14. In order to enable the fan itself to have a disinfection function, a disinfection component is integrated at the air inlet of the housing in this embodiment.

[0036] The disinfection assembly includes a deflector 17, an ultraviolet lamp and two layers of photocatalyst nets 15. The number of layers of the photocatalyst nets 15 and the number of ultraviolet lamps can be determined according to the disinfection requirements. The deflector 17 is fixed at the air inlet 112 of the housing 11. The size of the deflector 17 is larger than the air inlet 112. An air inlet space 18 is provided between the deflector 17 and the housing 11. When in use, air will enter from the periphery of the deflector 17.

[0037] The installation structure of the air deflector 17 is as follows: a fixing ring 172 is fixed on the inner surface of the air deflector 17 through a first connecting column 21, a certain distance is provided between the fixing ring 172 and the air deflector 17, and the fixing ring is fixed to the casing 11 by screws, so that a first side air outlet 19 connected to the air inlet space 18 is formed between the periphery of the air deflector 17 and the casing.

[0038] In order to allow for better air intake and increase the air intake volume, a central air outlet 173 is opened in the middle of the air deflector 17 in this embodiment, and a central air guide plate 171 is fixedly provided on the outer side of the central air outlet 173 through a second connecting column 22. The central air guide plate 171 covers the central air outlet 173, and a certain distance is provided between the periphery of the central air guide plate 171 and the air deflector 17, thereby forming a second side air outlet 20 connected to the air intake space.

[0039] The ultraviolet lamp and the photocatalyst net 15 are arranged in the air inlet space 18. The two layers of photocatalyst nets 15 cover the air inlet 112 layer by layer, and the two layers of photocatalyst nets 15 completely cover the air inlet 112. There are gaps between the photocatalyst nets 15 and between the photocatalyst nets 15 and the air guide cover 17.

[0040] The ultraviolet lamp of this embodiment includes an outer ultraviolet lamp 16 and an inner ultraviolet lamp 13. The outer ultraviolet lamp 16 is fixed to the inner surface of the middle air guide plate 171 and is located in the middle of the air inlet space 18. The outer ultraviolet lamp 16 is located on the outer side of the photocatalyst net 15 and can fully irradiate the outer photocatalyst net 15. The inner ultraviolet lamp 13 is arranged in the middle of the air inlet 112. The inner ultraviolet lamp 13 is fixedly installed by three fixing ribs 113 connected to the housing 11. The inner ultraviolet lamp 13 is located on the inner side of the photocatalyst net 15 and can fully irradiate the inner photocatalyst net 15.

[0041] The ultraviolet rays emitted by the outer ultraviolet lamp 16 and the inner ultraviolet lamp 13 are irradiated on the photocatalyst net 15. The inner ultraviolet lamp 13 and the outer ultraviolet lamp 16 can better irradiate the inner and outer photocatalyst nets 15, so that the photocatalyst net 15 can play a more sufficient disinfection role.

[0042] The photocatalyst on the photocatalyst net 15 can produce a strong catalytic degradation function under the action of ultraviolet light and visible light, can effectively degrade toxic and harmful gases in the air, can effectively kill a variety of bacteria, can decompose and harmlessly treat toxins released by bacteria or fungi, and also has the functions of removing formaldehyde, deodorizing, anti-fouling, and purifying the air.

[0043] The photocatalyst net 15 of the present embodiment is a titanium dioxide photocatalyst net, and the ultraviolet lamp is a UVC ultraviolet lamp. The UVC ultraviolet lamp emits ultraviolet rays with a wavelength of 254nm. The irradiated photocatalyst net has a stronger disinfection ability and can quickly and fully disinfect the air passing through.

[0044] In order to expand the area of ​​the photocatalyst net and thus increase the disinfection area, the middle portion of the photocatalyst net 15 of this embodiment is designed to be recessed inwards, and the recessed portion 151 is close to the impeller 14 .

[0045] like Figure 4 The fan with disinfection function according to the first embodiment is shown, which comprises a fan housing 2 and the above-mentioned self-disinfecting fan 1.

[0046] The fan housing 2 is vertical, and an air vent 21 is provided on the bottom side of the fan housing 2, and an air blowing port 23 is provided on the front. A vertical air duct 22 is provided in the fan housing 2, and the self-disinfecting fan 1 is installed at the air vent 21, located at the bottom of the fan housing 2, and the air inlet 112 of the self-disinfecting fan 1 corresponds to the air vent 21. The self-disinfecting fan 1 draws air from the air vent 21, and the air duct 22 is connected to the air outlet 111 of the self-disinfecting fan 1, and the air blowing port 23 is connected to the air duct 22. Of course, the fan is also provided with a conventional controller 3 and a control switch provided on the controller for controlling and adjusting the fan, and the controller 3 is electrically connected to the fan, and the fan is controlled by the controller 3.

[0047] When in use, the self-disinfecting blower 1 is turned on, the motor 12 and the ultraviolet lamp are powered on, and the self-disinfecting blower 1 draws in external air from the air outlet 21, and the drawn air enters the air inlet space 18 from the first side air outlet 19 and the second side air outlet 20 around the air guide cover 17, and the air flows through the photocatalyst net 15 in the air inlet space for disinfection, and the disinfected air changes direction by the impeller 14 and blows out from the air outlet 111 at the upper end, and finally blows out from the air outlet 23 under the guidance of the air guide duct 22. Thus, the air can be disinfected and purified while the air is cooled.

[0048] Embodiment 2:

[0049] The fan with disinfection function of the second embodiment is different from the first embodiment in that a disinfection device is added in the form of a branch, and the disinfection device is a combined labyrinth type gas-liquid disinfection device 3 disclosed in Chinese Patent No. 200610035126.8.

[0050] like Figure 5 As shown, the disinfection and sterilization device is installed in the fan housing 2, located above the self-disinfecting fan 1, and a branch air inlet 24 is provided on the fan housing 2 corresponding to the air inlet end of the disinfection and sterilization device, and an air duct 4 is provided at the air outlet end of the disinfection and sterilization device, and the air duct extends into the first side air outlet 19, so as to connect the air outlet end of the disinfection and sterilization device with the air inlet space 18. The inlet of the combined labyrinth type gas-liquid disinfection and sterilization device 3 is the air inlet end, and the outlet is the air outlet end.

[0051] During use, the self-disinfecting fan 1 is turned on. Under the negative pressure generated by the fan exhaust, part of the outside air will enter from the exhaust port 21, and part will enter from the branch air inlet 24. The air entering from the branch air inlet 24 will flow through the combined maze-type gas-liquid disinfection and sterilization device 3 for efficient disinfection. All the entering air will finally enter the air inlet space 18, be blown into the air duct 22 after passing through the disinfection component, and be blown out from the blowing port 23.

[0052] During the continuous circulation of air, a part of it will always be efficiently disinfected and sterilized by the combined labyrinth type gas-liquid disinfection and sterilization device 3, which will not produce resistance to the airflow and can also achieve rapid and efficient disinfection and sterilization of the indoor air.

[0053] The above embodiments of the present invention are not intended to limit the protection scope of the present invention, and the implementation modes of the present invention are not limited thereto. All other modifications, replacements or changes made to the above structures of the present invention based on the above contents of the present invention, in accordance with common technical knowledge and customary means in the art, without departing from the above basic technical ideas of the present invention, should fall within the protection scope of the present invention.

Claims

1. A self-disinfecting fan, comprising a casing, a motor and an impeller, wherein the casing is provided with an air inlet and an air outlet, characterized in that: A disinfection component is integrated at the air inlet of the housing, the disinfection component includes a deflector, an ultraviolet lamp and at least one layer of photocatalyst net, the deflector is fixed at the air inlet of the housing, an air inlet space is provided between the deflector and the housing, the ultraviolet lamp and the photocatalyst net are provided in the air inlet space, the photocatalyst net covers the air inlet, and the ultraviolet light emitted by the ultraviolet lamp irradiates the photocatalyst net; A first side air outlet connected to the air inlet space is provided between the periphery of the air deflector and the casing, a central air outlet is provided in the middle of the air deflector, a central air guide plate is provided on the outer side of the central air outlet, and a second side air outlet connected to the air inlet space is provided between the periphery of the central air guide plate and the air deflector.

2. The self-disinfecting blower according to claim 1, characterized in that: The photocatalyst nets are sequentially covered at the air inlet layer by layer, and gaps are provided between the photocatalyst nets.

3. The self-disinfecting blower according to claim 2, characterized in that: The middle part of the photocatalyst net is concave inwards, and the concave part is close to the impeller.

4. The self-disinfecting blower according to claim 3, characterized in that: The ultraviolet lamp comprises an outer ultraviolet lamp, and the outer ultraviolet lamp is arranged on the inner surface of the deflector.

5. The self-disinfecting blower according to claim 4, characterized in that: The ultraviolet lamp comprises an inner ultraviolet lamp, and the inner ultraviolet lamp is arranged in the middle of the air inlet.

6. The self-disinfecting blower according to claim 5, characterized in that: The ultraviolet lamp is a UVC ultraviolet lamp.

7. A fan with a disinfection function, characterized in that: It comprises a fan housing and the self-disinfecting fan according to any one of claims 1 to 6, wherein the fan housing is provided with an air exhaust port and an air blowing port, an air duct is provided in the fan housing, the self-disinfecting fan is installed at the air exhaust port, the self-disinfecting fan draws air from the air exhaust port, and the air duct connects the air outlet and the air blowing port of the self-disinfecting fan.

8. The fan with disinfection function according to claim 7, characterized in that: The fan also includes a disinfection and sterilization device, which is installed in the fan housing. A branch air inlet is provided on the fan housing corresponding to the air inlet end of the disinfection and sterilization device. The air outlet end of the disinfection and sterilization device is connected to the air inlet space. During use, a portion of the air extracted from the disinfection fan will flow through the disinfection and sterilization device.

9. The fan with disinfection function according to claim 8, characterized in that: The disinfection and sterilization device is a combined labyrinth type gas-liquid disinfection and sterilization device.

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