Multifunctional oil cup for range hood

Abstract

The utility model relates to a multifunctional oil cup for a range hood, which is characterized by comprising an oil box, an oil-water separation part is arranged in the oil box, the internal space of the oil box is divided into an oil stain containing area and a water passing area which are mutually independent by the oil-water separation part, and the oil box is provided with a water leakage hole at the bottom of the water passing area; the water box is arranged below the oil box, and a water leakage hole in the bottom of a water passing area of the oil box is communicated with the interior of the water box; and the weighing assembly is in contact with the oil box and is used for weighing the oil box. Compared with the prior art, the oil box has the advantages that oil-water separation can be carried out, separated water flows into the water box, oil stains are reserved in the oil stain containing area of the oil box, the service life of the oil box can be prolonged, frequent cleaning of an oil cup is avoided, the water cup can be directly poured away after being cleaned, and the cleaning experience is greatly improved.

Description

Technical Field

[0001] The utility model relates to a multifunctional oil cup for a range hood. Background Art

[0002] The range hood is one of the essential kitchen appliances in the home kitchen, and it is also one of the kitchen appliances with frequent human-computer interaction, so the user experience of the equipment is crucial. As the range hood is used continuously, oil smoke will continue to enter the range hood and adhere to it. Some of it adheres to the fan system, and some of it gathers into oil droplets and flows back to the oil cup through the oil path. The continuous accumulation of oil on the impeller in the fan system will affect the performance of the range hood, resulting in increased noise and vibration, reduced air volume, and poorer fume extraction effect. Therefore, users need to perform regular maintenance and cleaning to ensure performance. However, users are often unclear about when the impeller needs to be cleaned, how often it should be cleaned, and to what extent it should be cleaned. In addition, the oil that flows back into the oil cup needs to be cleaned regularly to prevent the oil in the oil cup from overflowing or the oil in the oil cup from drying up and sticking to the oil cup. The oil in the oil cup is not easy to clean due to the fact that the oil cup is long, has dead corners, and is too deep. At the same time, users need to actively pay attention to the amount of oil in the oil cup to prevent overflow. They are not clear about how often to clean the oil cup. Therefore, frequent cleaning leads to poor experience, dirty hands, and inconvenience in cleaning, and infrequent cleaning leads to drying and sticking of oil that is difficult to clean. The above two aspects will obviously reduce the user experience.

[0003] There are two main solutions to the problem of cleaning the oil cup in the prior art: 1. By measuring the weight of the entire oil cup or the liquid level height of the liquid in the oil cup, etc., to provide an oil full reminder; the disadvantages of this solution are: the overall measurement of the oil cup, that is, measuring the liquid level height or weight of the oil-water mixture in the oil cup, only has the function of judging whether the oil is full, and does not have the function of improving the cleaning experience. Since the object of measurement is the oil-water mixture, which is often mostly water, it will shorten the user's cleaning cycle and make the cleaning more frequent; using ultrasonic sensors to detect the liquid level or using When the pressure sensor detects the overall weight of the oil cup, since the mixture being detected is not a uniform solution, the oil-water stratification will affect the distance of ultrasonic detection. The different oil-water content ratios and different volumes under the same mass will result in inaccurate detection data and sometimes false alarms. Furthermore, when the oil-water mixture in the oil cup is detected as a whole, the water evaporates, and the threshold is the weight of the mixture. After the water evaporates, the weight decreases or the height decreases, and the accumulation period is extended. The oil full detection function is normal, but since the accumulation rate of the mixture is much lower than the evaporation rate of the water, it takes a long time for the oil cup to reach the threshold, causing the oil in the oil cup to dry and become difficult to clean. ② The convenience of cleaning the oil cup is improved by laying an oil separator pad inside the oil cup. The main disadvantage of this solution is that the oil separator pad material has a limited volume, limited oil absorption, and a short service life. Due to the presence of water in the mixture, the oil will be brought into the oil cup, causing pollution. At the same time, water is heavy and oil is light. After the mixture exceeds the oil cup pad, it is no longer effective and can only prevent the oil sludge from settling in the oil cup.

[0004] In the prior art, maintenance reminders for fan systems are mainly based on detecting the accumulated amount of oil on the impeller to determine whether the impeller needs to be cleaned. Its main disadvantage is that sensors are used inside the fan system to detect the thickness of the oil, and the surface state of the impeller is affected by the environment, the sensor life is short, and the oily environment has a great impact on sensor detection, making it inconvenient to detect the impeller surface state. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a multifunctional oil cup for a range hood which can separate oil and water and is easy to clean, in view of the above-mentioned prior art.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a multifunctional oil cup for a range hood, characterized by comprising:

[0007] An oil box, wherein an oil-water separation partition is provided in the oil box, and the internal space of the oil box is divided into an oil-staining area and a water-passing area which are independent of each other by the oil-water separation partition, and the oil box is provided with a water leakage hole at the bottom of the water-passing area;

[0008] The water box is arranged below the oil box, and the water leakage hole at the bottom of the water passing area of ​​the oil box is connected with the inside of the water box;

[0009] A weighing assembly is in contact with the oil box and is used to weigh the oil box.

[0010] As an improvement, at least the bottom and lower side portion of the oil box are arranged inside the water box.

[0011] As a further improvement, the water box has an opening above, and the oil box is integrally inserted into the opening above the water box.

[0012] As a further improvement, the top outer wall of the oil box is surrounded by an outer edge, which is hung at the opening above the water box, while the other parts of the oil box are arranged inside the water box.

[0013] Preferably, the depth of the water box is at least twice the depth of the oil box.

[0014] As a further improvement, the inner wall of the water box is provided with a limiting protrusion, and the position of the limiting protrusion satisfies: when the oil box is inserted downward from the opening above the water box as a whole into the opening above the water box, and a circle of the outer edge of the outer wall at the top of the oil box is hung at the opening above the water box, the limiting protrusion just conflicts with the bottom of the oil box.

[0015] As a further improvement, the side wall of the water box is formed with a slot recessed toward the inside of the water box, and the slot forms the limiting protrusion on the inner wall of the water box.

[0016] As a further improvement, the water box is in the shape of an elongated strip, and two card slots are provided, which are respectively located on two opposite side walls of the water box.

[0017] As a further improvement, the cross section of the water box in the width direction is in the shape of an inverted trapezoid.

[0018] As a further improvement, the oil-water separation partition in the oil box includes two grid plates arranged at intervals, and an oil-water separation material arranged between the two grid plates, and the oil-water separation material has the characteristic that oil cannot pass through but water can.

[0019] Preferably, the oil-water separation material is a nano oil-water separation material.

[0020] As a further improvement, the surfaces of the two grid plates are covered with holes, and the holes at the bottom of the two grid plates are flush with the bottom surface of the oil box to prevent water from being trapped in the oil box.

[0021] As a further improvement, a downwardly extending downwardly-turned edge is provided at the water leakage hole at the bottom of the water passing area of ​​the oil box.

[0022] As a further improvement, a disposable isolation groove is laid in the oil holding area of ​​the oil box, and the position of the disposable isolation groove close to the oil-water separation partition is made of non-woven fabric that is penetrable by oil and water. The other parts of the disposable isolation groove are made of non-woven fabric and meltblown fabric, the inner layer is meltblown, the middle layer is non-woven fabric, and the outer layer is an isolation membrane.

[0023] As a further improvement, the weighing assembly includes a weighing sensor arranged at the bottom of the oil box, one side of the weighing sensor is connected to the bottom of the oil box through a support plate, and the other side of the weighing sensor is connected to a support frame through a pad, and the support frame is fixed in the water box.

[0024] As a further improvement, the support frame is also connected to a floating plate, which is movably connected to the support frame through a push rod. The floating plate can float up and down with a certain displacement, and the floating of the floating plate drives the push rod to move upward. The lowest point of the push rod's movement is lower than the lower end surface of the support plate when the weighing sensor has a maximum weighing weight, and the highest point of the push rod's movement is higher than the lower end surface of the support plate when the weighing sensor has a minimum weighing weight.

[0025] As a further improvement, the support frame is in the form of a long box, and is entirely sleeved outside the oil box.

[0026] As a further improvement, the support frame is provided with an avoidance hole at a position corresponding to the leakage hole at the bottom of the oil box, the leakage hole at the bottom of the water passing area of ​​the oil box is provided with a lower flip edge extending downward, the avoidance hole is provided with an upper flip edge extending upward, and the lower flip edge is inserted inside the lower flip edge.

[0027] Compared with the prior art, the advantages of the utility model are: the oil box can separate oil and water, the separated water flows into the water box, and the oil stains remain in the oil stain holding area of ​​the oil box, which can extend the use time of the oil box and avoid frequent cleaning of the oil cup. When cleaning the water cup, just pour it out directly, which greatly improves the cleaning experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the multifunctional oil cup for the range hood in the embodiment of the utility model.

[0029] Figure 2 It is a cross-sectional view of a multifunctional oil cup for a range hood in an embodiment of the utility model.

[0030] Figure 3 It is a three-dimensional exploded view of the multifunctional oil cup for the range hood in the embodiment of the utility model.

[0031] Figure 4 This is a flow chart of a method for reminding range hood maintenance in an embodiment of the utility model. DETAILED DESCRIPTION

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0033] like Figures 1 to 3 The multifunctional oil cup for the range hood shown comprises

[0034] A water box 1, with an opening on the top, the water box 1 is in the shape of an elongated strip, and a cross section in the width direction thereof is in the shape of an inverted trapezoid;

[0035] The oil box 2 is also in the shape of an elongated strip. The length of the oil box 2 is smaller than the length of the water box, the width of the oil box is slightly smaller than the width of the water box, the depth of the water box 1 is at least twice the depth of the oil box 2, in this embodiment, the depth of the water box 1 is approximately three times the depth of the oil box 2, the top of the oil box 2 has an opening, the oil box 2 is integrally inserted and embedded in the opening above the water box, a circle of outer edges 21 are arranged around the outer wall of the top of the oil box 2, this circle of outer edges 21 is hung at the opening above the water box 1, and other parts of the oil box 2 are arranged inside the water box 1; an oil-water separation partition is arranged inside the oil box 2, and the internal space of the oil box 2 is divided into an oil-stain holding area A and a water passing area B that are independent of each other by the oil-water separation partition, the oil box 2 is provided with a water leakage hole 22 at the bottom of the water passing area, and the water leakage hole 22 at the bottom of the water passing area B of the oil box 2 is connected with the inside of the water box 1;

[0036] The weighing assembly is in contact with the oil box 2 and is used to weigh the oil box 2. The weighing assembly includes a support frame 31 in a long box-shaped structure. The support frame 31 is integrally sleeved outside the oil box. A circle of outer edges is arranged around the top outer wall of the support frame 31, and this circle of outer edges is also hung at the opening above the water box 1; the weighing assembly also includes a weighing sensor 32 arranged at the bottom of the oil box 2. One side of the weighing sensor 32 is connected to the bottom of the oil box 2 through a support plate 33, and the other side of the weighing sensor 32 is connected to the support frame 31 through a pad 34. The support frame 31 and the oil box 2 are integrally inserted and fixed in the water box 1; the bottom of the support frame 31 is also connected to a floating plate 35, and the floating plate 35 The two push rods 36 are movably connected to the bottom of the support frame 31, and the floating plate 35 can float up and down with a certain displacement. The floating plate 35 drives the push rod 36 to move upward. The lowest point of the movement of the push rod 36 is lower than the lower end surface of the support plate 33 when the weighing sensor 32 has the maximum weighing weight, and the highest point of the movement of the push rod 36 is higher than the lower end surface of the support plate 33 when the weighing sensor 32 has the minimum weighing weight; the support frame 31 is provided with an avoidance hole 311 at a position corresponding to the water leakage hole 22 at the bottom of the oil box 2, and the water leakage hole 22 at the bottom of the water passing area B of the oil box 2 is provided with a downwardly extending lower flip edge, and the avoidance hole 311 is provided with an upwardly extending upper flip edge, and the lower flip edge is inserted inside the lower flip edge.

[0037] In this embodiment, the side walls of the two width directions of the water box 1 are formed with a groove 11 recessed into the inside of the water box, and the groove 11 forms a limiting protrusion on the inner wall of the water box. The position of the limiting protrusion on one side satisfies: when the oil box 2 and the support frame 31 sleeved on the outside of the oil box 2 are integrally inserted and embedded in the opening above the water box 1 from the opening above the water box 1, and the outer edge of the support frame 31 and the top outer wall of the oil box 2 is hung at the opening above the water box 1, the limiting protrusion just conflicts with the bottom of the support frame 31.

[0038] In this embodiment, the oil-water separation partition in the oil box 2 includes two grid plates 23 and 24 arranged at intervals, and an oil-water separation material 25 arranged between the two grid plates. The characteristics of the oil-water separation material are that oil cannot pass through but water can pass through. In this embodiment, nano oil-water separation material is used. The surfaces of the two grid plates 23 and 24 are covered with holes, and the holes at the bottom of the two grid plates are flush with the bottom surface of the oil box 2. A disposable isolation groove 4 is laid in the oil-stain holding area A of the oil box 2. The position of the disposable isolation groove close to the oil-water separation partition is a permeable surface. The permeable surface is made of non-woven fabric that can be penetrated by oil and water. The other parts of the disposable isolation groove are made of non-woven fabric and melt-blown fabric. The inner layer is melt-blown, the middle layer is non-woven fabric, and the outer layer is an isolation membrane. Neither oil nor water can pass through.

[0039] The general working process of the multifunctional oil cup is as follows: during the cooking process, an oil-water mixture is generated, which flows back into the oil box through the oil path of the range hood, wherein the colloidal oil sediment is adsorbed on the surface of the disposable isolation groove 4, and the oil is sucked into the isolation groove 4. When the oil is stored in the isolation groove 4, the water and liquid oil enter the nano oil-water separation material through the permeable surface and the grid plate. Since the oil cannot pass through the nano oil-water separation material, the oil will not continue to move to the water flow area. The water enters the water flow area through the nano oil-water separation material and flows into the water box through the leaking hole; as the range hood is running, oil and water continue to accumulate; wherein the oil is separated out separately and stored in the oil storage area A of the oil box, and the water is stored separately in the water box; the weighing sensor collects the weight of the oil box in real time, and transmits it back to the main control board of the range hood to remind the oil box to be full; when the water level in the water box contacts the floating plate, the floating plate is pushed upward to contact the support plate, giving the support plate a reverse force, and the value detected by the weighing sensor will decrease in the reverse direction. At this time, it can be determined that the water level has reached the threshold, and a water box full water reminder is issued. Since the oil holding area A of the oil box is protected by an isolation groove, it will basically not cause surface pollution. Only the isolation groove needs to be replaced. The isolation groove is a disposable material and can be replaced regularly with a long replacement cycle. When the water box indicates that the water is full, it can be directly poured out. There is no oil in the water and it will not contaminate the inner wall of the water cup. Therefore, the multifunctional water box is easy to clean or even does not need to be cleaned.

[0040] The maintenance method of the multifunctional oil cup can improve the cleaning experience of the oil cup based on the detection of the water box and the oil box in the multifunctional oil cup. Since the multifunctional oil cup can separate oil and water, the oil is collected in the oil box and the water is collected in the water box. When the water is full, it will remind you that the water is full. You can just pour out the water to complete the cleaning. The oil cup continues to collect oil without any processing.

[0041] When the oil box is full, remind the user to clean the oil box. Since a disposable isolation tank is provided in the oil storage area A, it can effectively prevent the colloidal oil from sticking to the wall of the oil box. At the same time, a part of the liquid oil will be absorbed by the isolation tank material, and the absorbed part will be stored in the isolation tank. When cleaning, directly dispose of the isolation tank. Since the back of the isolation tank is a thin film that blocks the oil, the oil box will basically not be contaminated, and it can be cleaned by wiping with a paper towel. This method is an independent detection, which can avoid frequent cleaning, extend the cleaning cycle, and improve the cleaning experience. The independent detection of this solution adopts the method of weight sensor and buoyancy combined with Hall switch, which can avoid the influence of oil and water status. At the same time, due to the separation of oil and water, even if the sound and light sensors are used, there will be no false alarm and other problems, eliminating the influence. In addition, due to the separation of oil and water, it is avoided that the oil adheres to the wall of the oil box after the water evaporates after long-term non-use.

[0042] In addition, this embodiment can also use the multifunctional oil cup to remind users of the maintenance of the range hood. The amount of oil collected can be used to reversely predict the amount of oil accumulated in the whole machine or fan, so as to determine the maintenance of the whole machine. In addition, the method can predict the remaining use time through the trend of oil accumulation. When the remaining life is less than one month, the user is reminded to perform maintenance in the near future, thereby giving the user a clear cleaning cycle to avoid confusion and unclear about when maintenance is needed. At the same time, the method can remind users of maintenance based on their usage habits. Different usage habits will result in different prediction results, which can adapt to the different needs of different users. The maintenance cycle can be reasonably determined based on the user's usage habits to avoid resource waste or untimely cleaning. The following parameters i, k, C0, Z, T1, W0, G need to be pre-set, where the initial value of i is 1, the initial value of k is 1, the initial value of C0 is 0, the initial value of Z is 0, and the initial value of T1 is 0. The multifunctional oil cup for range hoods can be used to remind users of range hood maintenance. The specific method includes the following steps, see Figure 4 As shown:

[0043] Step 1: Start the range hood maintenance cycle test and control the range hood fan to stop running;

[0044] Step 2, check whether the water box is full. If it is full, it will prompt to clean the water box and then return to step 2; otherwise, go to step 3;

[0045] Step 3: Detect the current oil box weight W i , and read the last oil box weight W at the same time i-1 ;

[0046] Step 4: Determine W i Is it greater than or equal to η*W? i-1 , where η is the tolerance coefficient, which is 0.7 to 0.9. If yes, go to step 5; if not, read the initial weight of the oil box W0 and calculate the weight gain of the oil box Z = 2Wi-1 -W i-2 -W0, reset W0 to W i , reassign i value to 1, and then calculate the comprehensive weight gain C of the oil cup k ,Ck=C k-1 +Z, let k value increase by 1, where the initial C0=0, and the state flag G is recorded as 1, indicating that the oil box has been cleaned up in an abnormal state, and then go to step 7;

[0047] Step 5: Determine the current oil box weight W i Whether the cleaning threshold Y is reached, if yes, a prompt is given to clean the oil box and go to step 6; if no, directly go to step 6;

[0048] Step 6: Read the initial weight W of the current circulating oil box 0， Calculate the current circulating oil box weight increase Z, Z = W i -W 0， Let i increase by 1, and then calculate the comprehensive weight gain C of the oil cup k ,C k =C k-1 +Z, where the initial C0 = 0;

[0049] Step 7. Calculate C k / δ, where δ is the oil pollution distribution accumulation coefficient, ranging from 0.5 to 2.8, to determine C k / δ is less than N, where N is the oil smoke accumulation threshold for range hood maintenance, ranging from 200g to 1600g. If not, it is prompted that the range hood needs maintenance and goes to step 9; if yes, read the current weight gain cycle T k , read the first comprehensive weight gain C1 and the first weight gain cycle T 1， Calculate remaining time Determine whether the remaining time is less than or equal to 30 days. If so, prompt that the range hood needs maintenance within one month, and then go to step 9; if not, determine whether G is equal to 1. If G is equal to 1, add 1 to the k value, and then assign G to 0, ending this range hood maintenance cycle detection; if G is not equal to 1, directly end this range hood maintenance cycle detection;

[0050] Step 9: Determine whether the range hood has been maintained. If so, set parameters i=1, k=1, C0=0, Z=0, T1=0; reset the value of W0 to W 1， End this range hood maintenance cycle detection; if not, determine whether G is equal to 1. If G is equal to 1, add 1 to the k value, then assign the G value to 0, and end this range hood maintenance cycle detection; if G is not equal to 1, directly end this range hood maintenance cycle detection.

Claims

1. A multifunctional oil cup for a range hood, Features include: An oil box, wherein an oil-water separation partition is provided in the oil box, and the internal space of the oil box is divided into an oil-staining area and a water-passing area which are independent of each other by the oil-water separation partition, and the oil box is provided with a water leakage hole at the bottom of the water-passing area; The water box is arranged below the oil box, and the water leakage hole at the bottom of the water passing area of ​​the oil box is connected with the inside of the water box; A weighing assembly is in contact with the oil box and is used to weigh the oil box.

2. The multifunctional oil cup for a range hood according to claim 1, Features: At least the bottom and the lower side of the oil box are arranged inside the water box.

3. The multifunctional oil cup for range hood according to claim 2, Features: The water box has an opening above it, and the oil box is integrally inserted and embedded in the opening above the water box.

4. The multifunctional oil cup for a range hood according to claim 3, Features: The outer wall at the top of the oil box is surrounded by an outer edge, which is hung at the opening above the water box, while other parts of the oil box are arranged inside the water box.

5. The multifunctional oil cup for a range hood according to claim 4, Features: The depth of the water box is at least twice the depth of the oil box.

6. The multifunctional oil cup for a range hood according to claim 4, Features: The inner wall of the water box is provided with a limiting protrusion, and the position of the limiting protrusion satisfies: when the oil box is inserted and embedded in the opening above the water box as a whole from the opening above the water box, and a circle of the outer edge of the outer wall of the top of the oil box is hung at the opening above the water box, the limiting protrusion just conflicts with the bottom of the oil box.

7. The multifunctional oil cup for a range hood according to claim 6, Features: The side wall of the water box is formed with a slot recessed toward the inside of the water box, and the slot forms the limiting protrusion on the inner wall of the water box.

8. The multifunctional oil cup for a range hood according to claim 7, Features: The water box is in the shape of an elongated strip, and two card slots are provided, which are respectively located on two opposite side walls of the water box.

9. The multifunctional oil cup for a range hood according to claim 7, Features: The cross section of the water box in the width direction is in an inverted trapezoidal shape.

10. The multifunctional oil cup for a range hood according to claim 1, Features: The oil-water separation spacer in the oil box comprises two grid plates arranged at intervals, and an oil-water separation material arranged between the two grid plates, wherein the oil-water separation material has the characteristic that oil cannot pass through but water can pass through.

11. The multifunctional oil cup for a range hood according to claim 10, Features: The oil-water separation material is a nano oil-water separation material.

12. The multifunctional oil cup for a range hood according to claim 11, Features: The surfaces of the two grid plates are covered with holes, and the holes at the bottom of the two grid plates are flush with the bottom surface of the oil box.

13. The multifunctional oil cup for a range hood according to claim 1, Features: A downwardly extending downwardly-turned edge is provided at the water leakage hole at the bottom of the water passing area of ​​the oil box.

14. The multifunctional oil cup for a range hood according to claim 1, Features: A disposable isolation groove is laid in the oil holding area of ​​the oil box. The position of the disposable isolation groove close to the oil-water separation partition is made of non-woven fabric that can be penetrated by oil and water. The other parts of the disposable isolation groove are made of non-woven fabric and meltblown fabric, the inner layer is meltblown, the middle layer is non-woven fabric, and the outer layer is an isolation membrane.

15. The multifunctional oil cup for a range hood according to claim 1, Features: The weighing assembly includes a weighing sensor arranged at the bottom of the oil box, one side of the weighing sensor is connected to the bottom of the oil box through a supporting plate, and the other side of the weighing sensor is connected to a support frame through a pad, and the support frame is fixed in the water box.

16. The multifunctional oil cup for a range hood according to claim 15, Features: The support frame is also connected to a floating plate, which is movably connected to the support frame through a push rod. The floating plate can float up and down with a certain displacement. The floating of the floating plate drives the push rod to move upward. The lowest point of the push rod movement is lower than the lower end surface of the support plate when the weighing sensor has the maximum weighing weight, and the highest point of the push rod movement is higher than the lower end surface of the support plate when the weighing sensor has the minimum weighing weight.

17. The multifunctional oil cup for a range hood according to claim 15, Features: The support frame is in the form of a long box and is entirely sleeved outside the oil box.

18. The multifunctional oil cup for a range hood according to claim 17, Features: The support frame is provided with an avoidance hole at a position corresponding to the leakage hole at the bottom of the oil box, the leakage hole at the bottom of the water passing area of ​​the oil box is provided with a lower flip edge extending downward, the avoidance hole is provided with an upper flip edge extending upward, and the lower flip edge is inserted inside the lower flip edge.

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