Fan assembly, cooling device, device with fan assembly and control method

Abstract

The present invention relates to the technical field of electrical products, and particularly relates to a fan assembly, a fan cooling device, a device having the fan assembly, and a control method for the fan assembly. The fan assembly includes: a housing having at least one air inlet; a fan disposed inside the housing; and an atomizing device disposed outside the housing, the atomizing device having at least one mist outlet. By providing the atomizing device outside the housing and the fan inside the housing, when the fan is operating, the water mist generated by the atomizing device is sucked into the housing, and the water mist can reach all positions inside the housing, thereby effectively cooling the inside of the housing, especially cooling the motor that drives the fan to rotate inside the housing, and can effectively reduce the temperature rise, so as to increase the motor speed.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical appliances, and particularly relates to a fan assembly, a fan cooling device, a device with a fan assembly, and a control method for the fan assembly. Background Art

[0002] Range hoods have become essential household appliances in the kitchen. In order to pursue better fume extraction effects, range hoods with large air volumes and high static pressures are increasingly favored by customers. When designing high-static-pressure range hoods, increasing the motor power to obtain a higher rotational speed is a relatively simple design method. However, as the motor rotational speed increases, the motor temperature rise problem becomes more and more serious, restricting the upper limit of the motor power.

[0003] The prior art discloses an oil fume extraction fan range hood, which is composed of a motor, a centrifugal impeller, and a housing. It is equipped with an external water source and a water tank water supply system. There is a wire mesh sponge outer sleeve on the impeller shaft. The water supply pipe can be arranged to vertically drip forward, or inserted into the hollow sleeve cavity of the front and rear impellers to convey water. There are many liquid outlet holes in the middle and front parts of the sleeve shaft. Water is introduced into the impeller shaft sleeve part, and the high-speed rotation of the impeller makes the water in the shaft center fully refined into a large number of tiny droplets and fly out centrifugally, which can automatically humidify and cool the air.

[0004] The above-mentioned range hood needs to continuously introduce water into the sleeve cavity. The high-speed rotation of the impeller refines the water into small water droplets, requiring a large amount of water. This will also cause the oil cup of the range hood to be replaced frequently, and the area that the centrifugally flying droplets can contact is limited, resulting in limited cooling effect. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the motor of the fan assembly in the prior art is limited in rotational speed due to temperature rise, so as to provide a fan assembly, a fan cooling device, a device with a fan assembly, and a control method for the fan assembly that can effectively reduce the temperature rise and thus increase the motor rotational speed.

[0006] To solve the above technical problem, a fan assembly provided by the present invention includes:

[0007] A housing having at least one air inlet;

[0008] A fan disposed inside the housing;

[0009] An atomizing device disposed outside the housing, the atomizing device having at least one mist outlet.

[0010] The orientation of at least one of the mist outlets is the same as the orientation of at least one of the air inlets.

[0011] The casing has two of the air inlets, and the atomizing device has two of the mist outlets.

[0012] The atomizing device includes a mist outlet surface parallel to the surface where the air inlet of the casing is located, and the mist outlet is provided on the mist outlet surface.

[0013] The mist outlet is a strip-shaped hole, and the length extension direction of the strip-shaped hole is parallel to the surface where the air inlet is located.

[0014] It further includes a diversion structure for diverting the water mist flowing out from the mist outlet to the air inlet.

[0015] The diversion structure is connected to the atomizing device, and the projection of the diversion structure on the surface where the mist outlet is located covers the mist outlet.

[0016] The diversion structure at least includes a diversion surface. From the end where the diversion structure is connected to the mist outlet device to the other end of the diversion structure, the distance between the diversion surface and the surface where the mist outlet is located gradually increases.

[0017] The diversion structure is in a flat plate shape.

[0018] The atomizing device is arranged on the casing and is located above the air inlet.

[0019] The atomizing device includes an atomizing box, an atomizer is arranged in the atomizing box, the atomizing box includes an arc-shaped part adapted to the shape of the casing, and the atomizing box is arranged on the casing through the arc-shaped part.

[0020] The atomizing box includes a box body and a cover body covering the box body, and the diversion structure is arranged on the cover body.

[0021] The atomizer is an ultrasonic atomizer.

[0022] The present invention also provides a fan cooling device, including the fan assembly described above. An atomizing liquid is provided in the atomizing device, and the atomizing liquid contains an air freshener.

[0023] The present invention also provides a device with a fan assembly, including the fan assembly described above.

[0024] It further includes a housing. The atomizing device is adapted to be attached to the housing, and a liquid inlet is provided on the surface of the atomizing device that is attached to the housing.

[0025] The present invention also provides a control method for a fan assembly, including:

[0026] Starting the fan;

[0027] Detecting the motor temperature of the fan;

[0028] When the temperature of the motor is greater than or equal to the first preset temperature, control the atomizing device to operate at the first power.

[0029] When the temperature of the motor is less than the second preset temperature, control the atomizing device to operate at the second power, where the second preset temperature is less than the first preset temperature, and the second power is less than the first power.

[0030] The technical solution of the present invention has the following advantages:

[0031] 1. For the fan assembly provided by the present invention, by arranging the atomizing device outside the housing and the fan inside the housing, when the fan is working, the water mist generated by the atomizing device is sucked into the housing, and the water mist can contact all positions inside the housing, thereby effectively cooling the inside of the housing, especially cooling the motor that drives the fan rotation inside the housing, which can effectively reduce the temperature rise and thus increase the motor speed.

[0032] 2. For the fan assembly provided by the present invention, the orientation of at least one of the mist outlets is the same as the orientation of at least one of the air inlets. Such a setting is conducive to sucking the water mist flowing out of the mist outlet into the housing and avoiding waste of the water mist.

[0033] 3. For the fan assembly provided by the present invention, the mist outlet is a strip-shaped hole, and the length extension direction of the strip-shaped hole is parallel to the plane where the air inlet is located. The mist outlet has a relatively large area, which is conducive to improving the cooling efficiency.

[0034] 4. For the fan assembly provided by the present invention, it further includes a diversion structure for diverting the water mist flowing out of the mist outlet to the air inlet, which can avoid waste of the water mist and is conducive to improving the cooling efficiency.

[0035] 5. For the fan assembly provided by the present invention, the diversion structure is in a flat plate shape, and the structure of the diversion structure is simple and convenient for processing.

[0036] 6. For the fan assembly provided by the present invention, the atomizing device is arranged on the housing and above the air inlet. The water mist generated by the atomizing device naturally flows downward under the action of gravity, which can further ensure that the water mist enters the housing.

[0037] 7. For the fan assembly provided by the present invention, the atomizing device includes an atomizing box, an atomizer is arranged inside the atomizing box, and the atomizing box includes an arc-shaped part adapted to the shape of the housing. The atomizing box is arranged on the housing through the arc-shaped part, which can ensure the connection stability of the atomizing box on the housing.

[0038] 8. The fan assembly provided by the present invention, wherein the atomization box includes a box body and a cover body covering the box body, and the diversion structure is arranged on the cover body. The arrangement of the cover body can prevent water mist from directly flowing upward and impacting other structures located above the atomization device, thereby causing water seepage at other structures. At the same time, it is also convenient to add atomization liquid into the atomization box.

[0039] 9. The fan cooling device provided by the present invention includes the above-mentioned fan assembly. The atomization device is provided with atomization liquid, and the atomization liquid contains an air freshener, which can remove the peculiar smell in the machine shell while cooling.

[0040] 10. The device with a fan assembly provided by the present invention includes the above-mentioned fan assembly. This device can ensure that the temperature inside the machine shell will not be too high, and can increase the speed of the motor to meet user needs.

[0041] 11. The device with a fan assembly provided by the present invention further includes a housing. The atomization device is adapted to be attached to the housing, and a liquid inlet is provided on the surface of the atomization device that is attached to the housing. Such an arrangement can ensure the connection stability of the atomization device and is also convenient for replenishing atomization liquid into the atomization device.

[0042] 12. The control method of the fan assembly provided by the present invention controls the atomization device to operate at a first power when the motor temperature is greater than a first preset temperature, which can achieve automatic cooling.

[0043] 13. The control method of the fan assembly provided by the present invention controls the atomization device to operate at a second power when the motor temperature is less than a second preset temperature. The second preset temperature is less than the first preset temperature, and the second power is less than the first power, which can prevent the motor from affecting its normal performance due to low temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0045] Figure 1 It is a schematic structural diagram of the fan assembly provided in Embodiment 1 of the present invention;

[0046] Figure 2 For Figure 1 The front view of the fan assembly shown in the working state;

[0047] Figure 3 For Figure 1Exploded view of the atomizing device shown;

[0048] Figure 4 Schematic diagram of the device with a fan assembly provided in Embodiment 3 of the present invention.

[0049] Explanation of reference numerals:

[0050] 1 - housing; 2 - fan; 3 - atomizing device; 31 - box body; 32 - cover body; 33 - ultrasonic atomizer; 34 - liquid inlet; 35 - arc portion; 4 - mist outlet; 5 - diversion structure; 6 - housing. Detailed implementation manners

[0051] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0052] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0053] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0054] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0055] Embodiment 1

[0056] This embodiment provides a specific implementation manner of the fan assembly, and the fan assembly includes a housing 1, a fan 2, and an atomizing device 3.

[0057] Among them, the housing 1 has at least one air inlet, and the fan 2 is arranged inside the housing 1. Specifically, in this embodiment, the housing 1 is a volute, the fan 2 is a centrifugal fan, and the volute is provided with two air inlets. In other alternative embodiments, the housing 1 is an installation shell without a volute tongue, the air inlet on the housing 1 can be only one, and the fan 2 can be other types of fans.

[0058] The atomization device 3 is arranged outside the housing 1, and the atomization device 3 has at least one mist outlet 4. Specifically, in this embodiment, the housing 1 has two air inlets, the atomization device 3 has two mist outlets 4, and one mist outlet 4 corresponds to one air inlet. Of course, in other alternative embodiments, the number of mist outlets 4 can be greater than the number of air inlets. For example, when the air inlet is 1, the number of mist outlets 4 can be two or more.

[0059] By arranging the atomization device 3 outside the housing 1 and the fan 2 inside the housing 1, when the fan 2 is working, the water mist generated by the atomization device 3 is inhaled into the housing 1, and the water mist can contact all positions inside the housing 1, thereby effectively cooling the inside of the housing 1, especially cooling the motor that drives the fan 2 to rotate inside the housing 1, which can effectively reduce the temperature rise, and thus can increase the motor speed.

[0060] In this embodiment, the orientation of at least one mist outlet 4 is the same as the orientation of at least one air inlet. Specifically, as Figure 1 shown, the air inlets are located on the left and right sides of the volute, and the mist outlets 4 are located on the left and right sides of the atomization device 3. Such a setting is beneficial to inhaling the water mist flowing out from the mist outlet 4 into the housing 1 and avoiding waste of the water mist.

[0061] Further referring to Figure 1 , the atomization device 3 includes a mist outlet surface parallel to the plane where the air inlet of the housing 1 is located, and the mist outlet 4 is arranged on the mist outlet surface.

[0062] In this embodiment, as Figure 3 shown, the mist outlet 4 is a strip-shaped hole, and the length extension direction of the strip-shaped hole is parallel to the plane where the air inlet is located. Such a setting makes the mist outlet 4 have a larger area and is beneficial to improving the cooling efficiency. In other alternative embodiments, the shape of the mist outlet 4 is not limited. For example, a plurality of small holes can be arranged on the mist outlet surface.

[0063] In this embodiment, the fan assembly further includes a diversion structure 5 for diverting the water mist flowing out from the mist outlet 4 to the air inlet. The setting of the diversion structure 5 can avoid the waste of the water mist caused by the water mist flowing in other directions, and at the same time is beneficial to improving the cooling efficiency. Especially when the fan assembly is applied to a range hood, the water mist flowing in other directions may cause other structures to seep water.

[0064] Specifically, the diversion structure 5 is connected to the atomizing device 3. The projection of the diversion structure 5 on the plane where the mist outlet 4 is located covers the mist outlet 4. After the water mist flows out through the mist outlet 4, the diversion structure 5 blocks and guides the flow direction of the water mist, causing the water mist to flow towards the air inlet.

[0065] In this embodiment, the diversion structure 5 at least includes a diversion surface. From the end where the diversion structure 5 is connected to the atomizing device to the other end of the diversion structure 5, the distance between the diversion surface and the plane where the mist outlet 4 is located gradually increases. In an alternative embodiment, the diversion structure 5 is in a shape similar to an L, including a horizontal part connected to the atomizing device and a vertical diversion surface connected to the horizontal part. The water mist flows out through the gap between the plane where the mist outlet 4 is located and the diversion surface. In this embodiment, the distance between the diversion surface and the plane where the mist outlet 4 is located remains unchanged. In another alternative embodiment, the diversion structure 5 includes a horizontal part and an inclined diversion surface connected to the horizontal part. The inclination direction of the diversion surface is such that from the end connected to the horizontal part to the other end of the diversion surface, the distance between the diversion surface and the plane where the mist outlet 4 is located gradually decreases.

[0066] In this embodiment, the diversion structure 5 is in a flat plate shape, and the structure of the diversion structure 5 is simple and convenient for processing.

[0067] As Figure 1 and Figure 2 shown, the atomizing device 3 is arranged on the housing 1 and is located above the air inlet. The water mist generated by the atomizing device 3 naturally flows downward under the action of gravity, thereby further ensuring that the water mist enters the housing 1.

[0068] Specifically, as Figure 3 shown, the atomizing device 3 includes an atomizing box. An atomizer is provided inside the atomizing box. The atomizing box includes an arc-shaped part 35 adapted to the shape of the housing 1. The atomizing box is arranged on the housing 1 through the arc-shaped part 35, and the atomizing box can be stably connected to the housing 1. The atomizing box can be fixedly connected to the housing 1 by welding or gluing, and it is not necessary to open connection holes on the atomizing box or the housing 1, which can avoid liquid leakage.

[0069] Specifically, in this embodiment, the atomizing box includes a box body 31 and a cover body 32 covering the box body 31. The diversion structure 5 is arranged on the cover body 32. The setting of the cover body 32 can prevent the water mist from directly flowing upward and impacting other structures above the atomizing device 3, causing water seepage at other structures, and at the same time, it is also convenient to add atomizing liquid into the atomizing box.

[0070] The atomizer in this embodiment is an ultrasonic atomizer 33, with a fast atomizing speed and high efficiency. In other alternative embodiments, the atomizer can adopt an air compression atomizer or a mesh atomizer.

[0071] When the fan assembly is operating, a suction force is generated at the air inlet, and the water mist generated by the atomizing device 3 continuously flows out through the mist outlet 4. Under the guidance of the diversion structure 5, its own gravity, and the suction force at the air inlet, as Figure 2 shown by the arrow direction in, it continuously flows towards the air inlet and then flows into the interior of the casing 1 through the air inlet. The temperature of the water mist is lower than the temperature inside the casing 1, and the water mist is continuously evaporated inside the casing 1, which can cool the interior of the casing 1, and the temperature of the motor located inside the casing 1 also decreases accordingly. Users can select different atomizing liquids according to their needs, for example, simply using water, or a liquid with a cleaning effect, or an air freshener that can remove odors.

[0072] Embodiment 2

[0073] This embodiment provides a specific implementation of the fan cooling device, including the fan assembly provided in the above embodiment, wherein the atomizing device 3 is provided with an atomizing liquid, and the atomizing liquid contains an air freshener. While cooling the fan 2, it can remove the odor inside the casing 1.

[0074] Embodiment 3

[0075] This embodiment provides a device with a fan assembly, as Figure 4 shown, including the fan assembly. This device can ensure that the temperature inside the casing 1 will not be too high, and can increase the speed of the motor to meet the user's needs. In this embodiment, the device with the fan assembly is specifically an oil fume extractor.

[0076] The device with the fan assembly further includes a housing 6. The atomizing device 3 is adapted to be attached to the housing 6, and a liquid inlet 34 is provided on the surface of the atomizing device 3 that is attached to the housing 6. On the one hand, the atomizing device 3 is fixed on the casing 1, and on the other hand, it is attached to the housing 6, and the connection is relatively stable. When the amount of atomizing liquid in the atomizing device 3 is small, the liquid inlet 34 can be connected through a connecting pipe, and the atomizing liquid can be replenished into the atomizing device 3 through the connecting pipe.

[0077] Embodiment 4

[0078] This embodiment provides a control method for a fan assembly, including the following steps:

[0079] Start the fan 2;

[0080] Detect the motor temperature of the fan 2;

[0081] When the motor temperature is greater than or equal to the first preset temperature, control the atomizing device 3 to operate at the first power. Wherein the first preset temperature can be 80 °C. When the motor temperature is greater than the first preset temperature, controlling the atomizing device 3 to operate at the first power can perform automatic cooling.

[0082] When the motor temperature is lower than the second preset temperature, control the atomizing device 3 to operate at the second power. The second preset temperature is lower than the first preset temperature, and the second power is lower than the first power. When the motor temperature is lower than the second preset temperature, the atomizing device automatically operates at a lower power, which can prevent the motor from affecting its normal performance due to low temperature. The second preset temperature can be 60°C.

[0083] In this embodiment, a temperature detection device is installed on the motor. After starting the blower 2, the atomizing device 3 can be started simultaneously, and the atomizing device 3 first operates at the second power until the temperature detection device detects that the motor temperature is higher than the first preset temperature, and then control the atomizing device 3 to operate at the first power. When the motor temperature drops below the second preset temperature, control the atomizing device 3 to operate at the second power again. During the process of the motor temperature decreasing from the first preset temperature to the second preset temperature, the atomizing device 3 can still operate at the first power.

[0084] When the blower 2 stops working, the atomizing device 3 also stops working.

[0085] Obviously, the above embodiments are only examples for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A fan assembly, characterized in that, it comprises: a housing (1) having at least one air inlet; a fan (2) disposed within the housing (1); an atomizing device (3) disposed outside the housing (1), the atomizing device (3) having at least one mist outlet (4), the atomizing device (3) comprising a mist outlet surface parallel to the plane where the air inlet of the housing (1) is located, the mist outlet (4) being disposed on the mist outlet surface, the mist outlet (4) being a strip-shaped hole, and the length extension direction of the strip-shaped hole being parallel to the plane where the air inlet is located; a guiding structure (5) for guiding the water mist flowing out from the mist outlet (4) to the air inlet, the guiding structure (5) being connected to the atomizing device (3), the projection of the guiding structure (5) on the plane where the mist outlet (4) is located covering the mist outlet (4), the guiding structure (5) at least comprising a guiding surface, and from the end where the guiding structure (5) is connected to the atomizing device to the other end of the guiding structure (5), the distance between the guiding surface and the plane where the mist outlet (4) is located gradually increases, the orientation of at least one mist outlet (4) being consistent with the orientation of at least one air inlet, the housing (1) having two air inlets, the atomizing device (3) having two mist outlets (4), the atomizing device (3) being disposed on the housing (1) and located above the air inlet, the atomizing device (3) comprising an atomizing box, an atomizer being disposed within the atomizing box, the atomizing box comprising an arc-shaped portion (35) adapted to the shape of the housing (1), and the atomizing box being disposed on the housing (1) through the arc-shaped portion (35).

2. The fan assembly according to claim 1, characterized in that, the guiding structure (5) is in a flat plate shape.

3. The fan assembly according to claim 1, characterized in that, the atomizing box comprises a box body (31) and a cover body (32) covering the box body (31), and the guiding structure (5) is disposed on the cover body (32).

4. The fan assembly according to claim 3, characterized in that, the atomizer is an ultrasonic atomizer (33).

5. A fan cooling device, characterized in that, it comprises the fan assembly according to any one of claims 1-4, and an atomizing liquid is disposed within the atomizing device (3), and the atomizing liquid contains an air freshener.

6. A device having a fan assembly, characterized in that, it comprises the fan assembly according to any one of claims 1-4.

7. The device having a fan assembly according to claim 6, characterized in that, it further comprises a housing (6), the atomizing device (3) being adapted to be in contact with the housing (6), and a liquid inlet (34) is disposed on the surface of the atomizing device (3) in contact with the housing (6).

8. A control method for a fan assembly, characterized in that, it is applied to the fan assembly according to any one of claims 1-4 and comprises: starting the fan (2); detecting the motor temperature of the fan (2); When the temperature of the motor is greater than or equal to the first preset temperature, control the atomizing device (3) to operate at the first power.

9. The control method according to claim 8, wherein, when the temperature of the motor is less than the second preset temperature, control the atomizing device (3) to operate at the second power, the second preset temperature is less than the first preset temperature, and the second power is less than the first power.

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