Oil stain cleaning device for range hood and range hood

Abstract

The utility model discloses an oil stain cleaning device for a range hood and the range hood, and the device comprises a water inlet device which is communicated with a fan system and is used for enabling water for cleaning to flow out to the fan system; the heating device is communicated with the fan system and is used for heating an oil-water mixture in the fan system; the condensing device is communicated with the fan system and is used for condensing the heated oil-water mixture; the fan system controls an impeller of the fan system to rotate to clean the impeller after the fan system is heated by the heating device or condensed by the condensing device. When the device is used for cleaning heavy oil stains, the heating device is used for diluting an oil-water mixture, then the condensing device is used for quickly condensing the diluted oil-water mixture, and finally the impeller is controlled to rotate to clean the impeller; and when the light greasy dirt is cleaned, the heating device is used for diluting an oil-water mixture, the impeller is controlled to rotate to realize cleaning of the impeller, and the cleaning effect of the range hood is improved.

Description

Technical Field

[0001] The present application relates to the field of household appliances, and in particular to an oil cleaning device for a range hood and a range hood. Background Art

[0002] Since the range hood has a significant effect on solving the oil fume problem encountered when cooking, it has become one of the indispensable kitchen appliances in modern families. The range hood absorbs and exhausts oil fume through a centrifugal fan installed inside the range hood. When the impeller of the centrifugal fan rotates, negative pressure suction is generated in the center of the fan, guiding the oil fume under the range hood to be discharged outdoors. As the range hood is used for a long time, the oil fume will continue to adhere to the surface of the impeller. If it is not cleaned regularly, the performance of the range hood will be greatly reduced, affecting the oil fume extraction effect. Therefore, the cleaning problem of the range hood has become a new problem.

[0003] The self-cleaning range hoods that have appeared on the market currently only use the impeller rotation flushing method to clean the oil stains. Although such self-cleaning range hoods can clean simple oil stains, the cleaning effect of only relying on the impeller rotation flushing method is not good. Utility Model Content

[0004] Based on this, it is necessary to provide an oil cleaning device for a range hood and a range hood in order to solve the above technical problems.

[0005] In a first aspect, an embodiment of the utility model provides an oil cleaning device for a range hood, the device comprising:

[0006] a water inlet device, connected to the fan system, and used to flow clean water to the fan system;

[0007] a heating device, connected to the fan system, for heating the oil-water mixture in the fan system;

[0008] A condensing device, connected to the fan system, for condensing the heated oil-water mixture;

[0009] The fan system controls the impeller to rotate after the heating device performs heating or the condensing device performs condensing to clean the impeller.

[0010] In one embodiment, the water inlet device includes a water tank, a first control valve and a water inlet mechanism, and the first control valve is connected to the water tank and the water inlet mechanism to control the water in the water tank to flow out to the impeller through the water inlet mechanism.

[0011] In one embodiment, the water inlet mechanism includes a first pipe and a plurality of nozzles connected to the first pipe, and the first pipe is connected to the first control valve.

[0012] In one of the embodiments, the heating device and the condensing device are connected to the fan system through a second pipeline.

[0013] In one embodiment, the device also includes a temperature sensor provided in the fan system. After the heating device is heated, when the temperature sensor detects that the temperature in the fan system reaches a first preset temperature, the heating device stops working after a first preset time.

[0014] In one of the embodiments, after the condensing device performs condensation, when the temperature sensor detects that the temperature in the fan system is lower than a second preset temperature, the condensing device stops working after a second preset time.

[0015] In one of the embodiments, the volute of the fan system is provided with an annular wall hole, the nozzle is arranged in the annular wall hole, and the device also includes a blocking device passing through the annular wall hole. When the water inlet device discharges water, the blocking device opens the annular wall hole, and after the heating device is heated, the blocking device covers the annular wall hole.

[0016] In one of the embodiments, the blocking device includes a motor and a baffle connected to the motor, and the motor rotates to drive the baffle to open or cover the annular wall hole.

[0017] In one of the embodiments, the volute of the fan system is provided with an oil outlet hole.

[0018] In a second aspect, an embodiment of the utility model provides a range hood, characterized in that it comprises a fan system and an oil cleaning device as described in the first aspect above, which is connected to the fan system.

[0019] Compared with the prior art, this application has the following beneficial effects:

[0020] 1. When cleaning heavy oil pollution, first use the heating device to dilute the oil-water mixture, then use the condensing device to quickly condense the diluted oil-water mixture, and finally control the rotation of the impeller to clean the impeller, thereby improving the cleaning effect of the range hood;

[0021] 2. When cleaning light oil stains, use a heating device to dilute the oil-water mixture, then control the rotation of the impeller to clean the impeller and improve the cleaning effect of the range hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of an oil cleaning device in one embodiment of the utility model;

[0023] Figure 2This is a schematic structural diagram of a water inlet device and a blocking device in one embodiment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of an oil cleaning device in another embodiment of the utility model.

[0025] Among them, 10, fan system; 20, water inlet device; 30, heating device; 40, condensing device; 50, blocking device; 101, impeller; 102, volute; 201, water tank; 202, first control valve; 203, water inlet mechanism; 501, motor; 502, baffle; 2031, first pipeline; 2032, nozzle; 1011, second pipeline; 104, oil outlet hole. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of the present utility model. For ordinary technicians in this field, the present utility model can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0027] As shown in the utility model and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements.

[0028] Although the utility model makes various references to certain modules in the system according to the embodiment of the utility model, any number of different modules can be used and run on a computing device and / or a processor. The modules are only illustrative, and different aspects of the system and method can use different modules.

[0029] It should be understood that when a unit or module is described as being "connected," "coupled" to other units, modules, or blocks, it may refer to being directly connected or coupled, or communicating with other units, modules, or blocks, or there may be intermediate units, modules, or blocks, unless the context clearly indicates otherwise. The term "and / or" as used herein may include any and all combinations of one or more of the associated listed items.

[0030] The utility model provides an oil cleaning device for a range hood, such as Figure 1As shown, the range hood includes a fan system 10. The fan system 10 includes an impeller 101 and a volute 102, wherein the impeller 101 is located inside the volute 102. The oil cleaning device includes a water inlet device 20, a heating device 30 and a condensing device 40.

[0031] The water inlet device 20 is in communication with the fan system 10, and is used to flow out cleaning water to the fan system 10. The water inlet device 20 can flow out not only cleaning water, but also various cleaning liquids.

[0032] The heating device 30 is in communication with the fan system 10 and is used for heating the oil-water mixture in the fan system 10 .

[0033] The condensing device 40 is in communication with the fan system 10 and is used for condensing the heated oil-water mixture.

[0034] The fan system 10 controls the impeller 101 to rotate to clean the impeller 101 after the heating device 30 performs heating or the condensing device 40 performs condensing.

[0035] In this embodiment, through the heating device 30 and the condensing device 40, when cleaning heavy oil stains, the heating device 30 is first used to dilute the oil-water mixture, and then the diluted oil-water mixture is quickly condensed by the condensing device 40, and finally the impeller is controlled to rotate to achieve cleaning of the impeller; when cleaning light oil stains, the heating device 30 is used to dilute the oil-water mixture, and then the impeller is controlled to rotate to achieve cleaning of the impeller, thereby improving the oil stain cleaning effect of the range hood.

[0036] Among them, Figure 2 As shown, the water inlet device 20 comprises a water tank 201, a first control valve 202 and a water inlet mechanism 203. The first control valve 202 is connected to the water tank 201 and the water inlet mechanism 203, and is used to control the water in the water tank 201 to flow out to the impeller through the water inlet mechanism 203. The water tank 201 comprises a water inlet 204. The water inlet mechanism 203 comprises a first pipe 2031 and a plurality of nozzles 2032 connected to the first pipe 2031, and the first pipe 2031 is connected to the first control valve 202.

[0037] In this embodiment, a first pipe 2031 and a plurality of nozzles 2032 connected to the first pipe are provided in the water inlet mechanism 203, so as to increase the probability of various parts of the impeller 101 in the fan system 10 being in contact with water when water is inletted, thereby increasing the coverage area of ​​the oil-water mixture on the impeller and further improving the cleaning effect of the impeller.

[0038] The heating device 30 and the condensing device 40 are connected to the fan system 10 through the second pipe 1011. The heating device 30 and the condensing device 40 send the heat medium or the cold medium into the volute 102 of the fan system 10 through the second pipe 1011 to improve the efficiency of heating or cooling oil pollution.

[0039] In one embodiment, the device also includes a temperature sensor (not shown in the figure) provided in the fan system 10. After the heating device 30 is heated, when the temperature sensor detects that the temperature in the fan system 10 reaches a first preset temperature, the heating device 30 stops working after continuing to wait for a first preset time.

[0040] In order to better dilute the oil-water mixture in the fan system 10, it is necessary to control the generation of water vapor in the volute 102, that is, the first preset temperature is the minimum temperature threshold that can generate water vapor in the volute 102. After the water vapor temperature in the volute 102 is greater than or equal to the first preset temperature, it is necessary to continue waiting for the first preset time so that the oil-water mixture in the volute 102 is fully diluted to enhance the cleaning effect of the oil stains.

[0041] After the condensing device 40 performs condensation, when the temperature sensor detects that the temperature in the fan system 10 is lower than a second preset temperature, the condensing device 40 stops working.

[0042] In this embodiment, the condensing device 40 needs to condense the diluted oil-water mixture in the volute 102 into a smoothie shape, so the second preset temperature is the maximum temperature threshold that can condense the oil-water mixture in the volute 102 into sand. After the temperature in the volute 102 is less than or equal to the second preset temperature, it is also necessary to wait until the second preset time to ensure that the oil-water mixture in the volute 102 is condensed into sand, which is convenient for the subsequent rotating impeller to clean the oil and improve the oil cleaning effect.

[0043] In this embodiment, the temperature in the fan system is acquired in real time by means of a temperature sensor disposed in the volute 102 of the fan system, so that the working state of the heating device or the condensing device can be adjusted in time.

[0044] In other embodiments, the fan system 10 may further include at least two temperature sensors, which are respectively located on the left and right sides of the volute 102 of the fan system, and the average temperature of the two temperature sensors is calculated as the temperature inside the volute 102 .

[0045] In one embodiment, the volute 102 of the fan system 10 is provided with an annular wall hole 103, the nozzle 2032 is arranged in the annular wall hole 103, and the device also includes a blocking device 50 passing through the annular wall hole 103. When the water inlet device 20 discharges water, the blocking device 50 opens the annular wall hole 103. After the heating device 30 is heated, the blocking device 60 blocks the annular wall hole 103.

[0046] Among them, Figure 2 As shown, the blocking device 50 includes a motor 501 and a baffle 502 connected to the motor. The motor 501 rotates to drive the baffle 502 to open or cover the annular wall hole 103.

[0047] In this embodiment, by setting the blocking device 50, when the water inlet device 20 discharges water, the motor 501 rotates to drive the baffle 502 to open the annular wall hole 103, so that the cleaning water can enter the fan system until the heating device 30 finishes working, and a fully diluted oil-water mixture is obtained, thereby improving the cleaning effect of the impeller. After the heating device 30 finishes working, the motor 501 rotates to drive the baffle 502 to block the annular wall hole 103 to prevent the stains from being thrown out of the volute 102 and contaminating the nozzle 2032 when the impeller is further rotated to clean the oil stains. In addition, after the heating device 30 finishes working, if the condensing device 40 is turned on, controlling the baffle 502 to block the annular wall hole 103 can also prevent the refrigerant from leaking out, thereby improving the working efficiency of the condensing device 40.

[0048] It should be noted that when the fan system of the range hood operates normally, the motor 501 of the blocking device 50 rotates to drive the baffle 502 to block the annular wall hole 103 , so the working air volume when the impeller rotates is not affected by the annular wall hole 103 .

[0049] In one embodiment, if Figure 3 As shown, the volute 102 of the fan system 10 is provided with an oil outlet 104. The oil outlet 104 is used to discharge oil.

[0050] like Figure 1 The oil stain cleaning device for range hood shown has a heavy oil stain cleaning mode and a light oil stain cleaning mode. When using the oil stain cleaning device, the cleaning mode can be automatically selected or manually selected.

[0051] When the heavy oil cleaning mode is selected, the working process of the oil cleaning device is as follows:

[0052] The first control valve 202 of the water inlet device 20 is opened, and the water in the water tank 201 enters the first pipe 2031 and the plurality of nozzles 2032. The motor 501 of the blocking device 50 rotates to drive the baffle 502 to open the annular wall hole 103, so that the nozzle 2032 can spray water to clean the impeller 101 through the annular wall hole 103 to obtain an oil-water mixture. At this time, the impeller 101 is in a state of periodically alternating slow movement in clockwise and counterclockwise directions.

[0053] The heating device 30 is turned on to heat the oil-water mixture in the fan system 10 through the second pipe 1011, so that the oil is diluted in liquid form. When the temperature sensors on the left and right sides of the volute 102 detect that the temperature in the fan system 10 reaches the first preset temperature, the heating device 30 stops working after waiting for the first preset time.

[0054] The first control valve 202 of the water inlet device 20 is closed, and at the same time, the motor 501 of the blocking device 50 rotates to drive the baffle 502 to cover the annular wall hole 103.

[0055] The condensing device 40 is turned on to freeze the diluted oil-water mixture in the fan system 10 into crushed ice through the second pipe 1011. When the temperature sensors on the left and right sides of the volute 102 detect that the temperature in the fan system 10 is lower than the second preset temperature, the condensing device 40 stops working after waiting for the second preset time.

[0056] The fan system 10 controls the impeller 101 to rotate at a high speed to shake off the oil on the impeller, and discharges the oil through the oil outlet hole 104 on the volute 102.

[0057] When the light oil cleaning mode is selected, the working process of the oil cleaning device is as follows:

[0058] The first control valve 202 of the water inlet device 20 is opened, and the water in the water tank 201 enters the first pipe 2031 and the plurality of nozzles 2032. The motor 501 of the blocking device 50 rotates to drive the baffle 502 to open the annular wall hole 103, so that the nozzle 2032 can spray water to clean the impeller 101 through the annular wall hole 103 to obtain an oil-water mixture. At this time, the impeller 101 is in a state of periodically alternating slow movement in clockwise and counterclockwise directions.

[0059] The heating device 30 is turned on to heat the oil-water mixture in the fan system 10 through the second pipe 1011, so that the oil is diluted in liquid form. When the temperature sensors on the left and right sides of the volute 102 detect that the temperature in the fan system 10 reaches the first preset temperature, the heating device 30 stops working after waiting for the first preset time.

[0060] The first control valve 202 of the water inlet device 20 is closed, and at the same time, the motor 501 of the blocking device 50 rotates to drive the baffle 502 to cover the annular wall hole 103.

[0061] The fan system 10 controls the impeller 101 to rotate at a high speed to shake off the oil on the impeller, and discharges the oil through the oil outlet hole 104 on the volute 102.

[0062] The embodiment of the utility model further provides a range hood, comprising a fan system and an oil cleaning device as described in the above embodiments and connected to the fan system.

[0063] The range hood can achieve the oil cleaning effect as described in the above embodiments by utilizing the oil cleaning device.

[0064] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. An oil cleaning device for a range hood, characterized in that: The device comprises: a water inlet device, connected to the fan system, and used to flow clean water to the fan system; a heating device, connected to the fan system, for heating the oil-water mixture in the fan system; A condensing device, connected to the fan system, for condensing the heated oil-water mixture; The fan system controls the impeller to rotate after the heating device performs heating or the condensing device performs condensing to clean the impeller.

2. The device according to claim 1, characterized in that The water inlet device includes a water tank, a first control valve and a water inlet mechanism. The first control valve is connected to the water tank and the water inlet mechanism and is used to control the water in the water tank to flow out to the impeller through the water inlet mechanism.

3. The device according to claim 2, characterized in that The water inlet mechanism includes a first pipeline and a plurality of nozzles connected to the first pipeline, and the first pipeline is connected to the first control valve.

4. The device according to claim 1, characterized in that The heating device and the condensing device are in communication with the fan system via a second pipeline.

5. The device according to claim 1, characterized in that The device also includes a temperature sensor disposed in the fan system. After the heating device performs heating, when the temperature sensor detects that the temperature in the fan system reaches a first preset temperature, the heating device stops working after a first preset time.

6. The device according to claim 5, characterized in that After the condensing device performs condensation, when the temperature sensor detects that the temperature in the fan system is lower than a second preset temperature, the condensing device stops working after a second preset time.

7. The device according to claim 3, characterized in that The volute of the fan system is provided with an annular wall hole, the nozzle is arranged in the annular wall hole, and the device also includes a blocking device passing through the annular wall hole. When the water inlet device discharges water, the blocking device opens the annular wall hole. After the heating device is heated, the blocking device blocks the annular wall hole.

8. The device according to claim 7, characterized in that The blocking device includes a motor and a baffle connected to the motor, and the motor rotates to drive the baffle to open or block the annular wall hole.

9. The device according to claim 1, characterized in that The volute of the fan system is provided with an oil outlet hole.

10. A range hood, characterized in that: It comprises a fan system and an oil cleaning device as described in any one of claims 1 to 9 connected to the fan system.

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