Operation method of range hood and range hood

Abstract

The invention discloses an operation method of a range hood and the range hood. The operation method of the range hood comprises the following steps that S1, in a K1 normal-temperature environment, under the state that the total load of the smoke gathering structure is G + Y1G, the first opening current I1, the first closing current I2, the first opening time T1 and the first closing time T2 of the smoke gathering structure are obtained; in the K2 low-temperature environment, in the state that the total load of the smoke gathering structure is G + Y2G, second opening current I3, second closing current I4, second opening time T3 and second closing time T4 of the smoke gathering structure are obtained; s2, the environment temperature is divided into a plurality of continuous temperature range intervals, and the initial opening current, the initial closing current, the initial opening time and the initial closing time of the smoke gathering structure in the temperature range intervals are set according to I1, I2, I3, I4, T1, T2, T3 and T4.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to an operating method of a range hood and the range hood. Background Art

[0002] With the iterative development of range hood technology, range hoods equipped with automatic opening and closing smoke collecting plates are becoming more and more common. The smoke collecting plates automatically open when in working state, expanding the smoke collecting range and improving the smoke exhaust capacity. When not in working state, the smoke collecting plates automatically close, forming an integrated appearance with a flat and simple appearance, which is convenient for users to clean and maintain. The smoke collecting plates are usually driven by a drive motor and multiple connecting rods to open and close. There are many rotating hinge points and a complex structure. In the actual use of the product, the smoke collecting plate has a high failure rate in opening and closing. Especially in the low temperature environment in the north in winter, the resistance between the drive motor and the connecting rod increases, and it is easy for the smoke collecting plate to open to the set angle or fail to close completely when closed, which causes the smoke collecting area to decrease, the smoke exhaust effect to deteriorate, and the oil on the back of the smoke collecting plate to drip onto the stove, making it difficult to clean.

[0003] Therefore, there is an urgent need for an operating method of a range hood to solve the above problems. Summary of the invention

[0004] The present invention aims to solve at least one of the problems existing in the existing related technologies to a certain extent. To this end, the present invention proposes an operating method of a range hood, which can improve the opening degree and closing degree of the range hood in a low-temperature environment and a normal-temperature environment.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A method for operating a range hood, comprising the following steps:

[0007] S1: In a normal temperature environment K1, when the total load of the smoke-collecting structure is G+Y1G, obtain the first opening current I1, the first closing current I2, the first opening time T1 and the first closing time T2 of the smoke-collecting structure; in a low temperature environment K2, when the total load of the smoke-collecting structure is G+Y2G, obtain the second opening current I3, the second closing current I4, the second opening time T3 and the second closing time T4 of the smoke-collecting structure;

[0008] S2: Divide the ambient temperature into a plurality of continuous temperature ranges, and set the initial opening current, initial closing current, initial opening time, and initial closing time of the smoke collecting structure in each temperature range according to I1, I2, I3, I4, T1, T2, T3, and T4;

[0009] S3: In each temperature range, the actual opening current, actual closing current, actual opening time, and actual closing time of the smoke-collecting structure are adjusted according to the initial opening current, initial closing current, initial opening time, initial closing time, and the actual operating position information of the smoke-collecting structure, until the smoke-collecting structure is fully opened and fully closed;

[0010] Among them, 20℃≤K1≤30℃, -20℃≤K2≤0℃, G is the load of the smoke-collecting structure when there is no oil stain, the value range of Y1 and Y2 is between 1%-50%, Y1>Y2, I1, I2, I3, I4 are all less than the maximum locked-rotor current Imax of the smoke-collecting structure.

[0011] Optionally, S2 includes the following steps: setting a first initial opening current Ia0, a first initial closing current Ib0, a first initial opening time Ta0, and a first initial closing time Tb0 of the smoke-collecting structure when the ambient temperature is in the first temperature range U1; setting a second initial opening current Ic0, a second initial closing current Id0, a second initial opening time Tc0, and a second initial closing time Td0 of the smoke-collecting structure when the ambient temperature is in the second temperature range U2; and setting a third initial opening current Ie0, a third initial closing current If0, a third initial opening time Te0, and a third initial closing time Tf0 of the smoke-collecting structure when the ambient temperature is in the third temperature range U3;

[0012] S3 comprises the following steps: when the ambient temperature is in the first temperature range U1, the third opening current Ian, the third closing current Ibn, the third opening time Tan, and the third closing time Tbn of the smoke-collecting structure are adjusted according to Ia0, Ib0, Ta0, Tb0 and the actual operation position information, so that the smoke-collecting structure is fully opened and fully closed; when the ambient temperature is in the second temperature range U2, the fourth opening current Icn, the fourth closing current Idn, the fourth opening time Tcn, and the fourth closing time Tdn of the smoke-collecting structure are adjusted according to Ic0, Id0, Tc0, and Td0; when the ambient temperature is in the third temperature range U3, the fifth opening current Ien, the fifth closing current Ifn, the fifth opening time Ten, and the fifth closing time Tfn of the smoke-collecting structure are adjusted according to Ie0, If0, Te0, and Tf0;

[0013] Among them, Ia0<Ic0<Ie0, Ib0<Id0<If0, Ta0<Tc0<Te0, Tb0<Td0<Tf0, U1, U2, U3 are three continuous temperature range intervals divided from high to low ambient temperature.

[0014] Optionally, 10%≤Y1≤20%, 3%≤Y2≤7%.

[0015] Optionally, K1 is 25°C and K2 is -10°C.

[0016] Optionally, S2 includes the following steps:

[0017] S21: the larger value of I1 and I3 is set as Ia0, the larger value of I2 and I4 is set as Ib0, the larger value of T1 and T3 is set as Ta0, and the larger value of T2 and T4 is set as Tb0;

[0018] S22: setting the sum of Ia0 and the first current value W1 to Ic0, setting the sum of Ib0 and the second current value W2 to Id0, setting the sum of Ta0 and the first time value H1 to Tc0, and setting the sum of Tb0 and the second time value H2 to Td0;

[0019] S23: setting the sum of Ic0 and the third current value W3 to Ie0, setting the sum of Id0 and the fourth current value W4 to If0, setting the sum of Tc0 and the third time value H3 to Te0, and setting the sum of Td0 and the fourth time value H4 to Tf0;

[0020] Among them, the value ranges of W1, W2, W3, and W4 are all between 20mA and 40mA, and the value ranges of H1, H2, H3, and H4 are all between 1s and 4s.

[0021] Optionally, in S3, when the ambient temperature is in the first temperature range U1, adjusting the third opening current Ian, the third closing current Ibn, the third opening time Tan, and the third closing time Tbn of the smoke-collecting structure according to Ia0, Ib0, Ta0, and Tb0 so that the smoke-collecting structure is fully opened and fully closed specifically includes the following steps:

[0022] S311: when the range hood is started and the current ambient temperature is within the first temperature range U1;

[0023] S312: Determine whether the range hood is used for the first time, if yes, proceed to S314, if no, proceed to S313;

[0024] S313: call out Ian, Ibn, Tan, and Tbn in the storage, and set Ian to Ia0, Ibn to Ib0, Tan to Ta0, and Tbn to Tb0;

[0025] S314: The control system operates the smoke collecting plate structure according to the instructions Ia0, Ib0, Ta0, and Tb0;

[0026] S315: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S316; if not, proceed to S317;

[0027] S316: Record Ia0 as Ian, record Ib0 as Ibn, record Ta0 as Tan, record Tb0 as Tbn, and store Ian, Ibn, Tan, and Tbn in the storage device. The smoke collecting plate structure operates according to Ian, Ibn, Tan, and Tbn.

[0028] S317: Ia0, Ib0, Ta0, Tb0 all increase Y3, and then enter S318;

[0029] S318: Determine whether Ia0≥Imax, Ib0≥Imax, Ta0≥Tmax1, Tb0≥Tmax2. If yes, issue a fault alarm. If no, proceed to S319.

[0030] S319: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S316; if not, proceed to S317;

[0031] Wherein, Tmax1 is the maximum preset opening time of the smoke-collecting structure in the first temperature range U1, Tmax2 is the maximum preset closing time of the smoke-collecting structure in the first temperature range U1, and 5%≤Y3≤30%.

[0032] Optionally, Tmax1 is twice the first initial opening time Ta0 in S2 , and Tmax2 is twice the first initial closing time Tb0 in S2 .

[0033] Optionally, in S3, when the ambient temperature is in the second temperature range U2, adjusting the fourth opening current Icn, the fourth closing current Idn, the fourth opening time Tcn, and the fourth closing time Tdn of the smoke collecting structure according to Ic0, Id0, Tc0, and Td0 specifically includes the following steps:

[0034] S321: when the range hood is started and the current ambient temperature is within the first temperature range U1;

[0035] S322: Determine whether the range hood is used for the first time, if yes, proceed to S324, if no, proceed to S323;

[0036] S323: Retrieve Icn, Idn, Tcn, and Tdn from the memory, and set Icn to Ic0, Idn to Id0, Tcn to Tc0, and Tdn to Td0;

[0037] S324: The control system operates the smoke collecting plate structure according to the instructions Ic0, Id0, Tc0, and Td0;

[0038] S325: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S326; if not, proceed to S327;

[0039] S326: Record Ic0 as Icn, record Id0 as Idn, record Tc0 as Tcn, record Td0 as Tdn, and store Icn, Idn, Tcn, and Tdn in the storage. The smoke collecting plate structure operates according to Icn, Idn, Tcn, and Tdn.

[0040] S327: Ic0, Id0, Tc0, Td0 are all increased by Y4, and then enter S328;

[0041] S328: Determine whether Ic0≥Imax, Id0≥Imax, Tc0≥Tmax3, Td0≥Tmax4. If yes, issue a fault alarm. If no, proceed to S329.

[0042] S329: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S326; if not, proceed to S327;

[0043] Wherein, Tmax3 is the maximum preset opening time of the smoke-collecting structure, Tmax4 is the maximum preset closing time of the smoke-collecting structure, and 5%≤Y4≤30%.

[0044] Optionally, Tmax3 is twice the second initial opening time Tc0 in S2 , and Tmax4 is twice the second initial closing time Td0 in S2 .

[0045] Optionally, in S3, when the ambient temperature is in the second temperature range U2, adjusting the fourth opening current Ien, the fourth closing current Ifn, the fourth opening time Ten, and the fourth closing time Tfn of the smoke collecting structure according to Ie0, If0, Te0, and Tf0 specifically includes the following steps:

[0046] S331: when the range hood is started and the current ambient temperature is within the first temperature range U1;

[0047] S332: Determine whether the range hood is used for the first time, if yes, proceed to S334, if no, proceed to S333;

[0048] S333: call out Ien, Ifn, Ten, and Tfn in the storage, and set Ien to Ie0, Ifn to If0, Ten to Te0, and Tfn to Tf0;

[0049] S334: The control system operates the smoke collecting plate structure according to the instructions of Ie0, If0, Te0, and Tf0;

[0050] S335: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S336; if not, proceed to S337;

[0051] S336: Record Ie0 as Ien, If0 as Ifn, Te0 as Ten, Tf0 as Tfn, and store Ien, Ifn, Ten, and Tfn in the storage device. The smoke collecting plate structure operates according to Ien, Ifn, Ten, and Tfn.

[0052] S337: Ie0, If0, Te0, Tf0 all increase by Y5, and then enter S338;

[0053] S338: Determine whether Ie0≥Imax, If0≥Imax, Te0≥Tmax5, Tf0≥Tmax6. If so, issue a fault alarm. If not, proceed to S339.

[0054] S339: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S336; if not, proceed to S337;

[0055] Wherein, Tmax5 is the maximum preset opening time of the smoke-collecting structure, Tmax6 is the maximum preset closing time of the smoke-collecting structure, and 5%≤Y5≤30%.

[0056] Optionally, Tmax5 is twice the third initial opening time Te0 in S2 , and Tmax6 is twice the third initial closing time Tf0 in S2 .

[0057] Optionally, the first temperature range U1 is 15°C to 50°C, the second temperature range U2 is 0°C to 15°C, and the third temperature range U3 is -30°C to 0°C.

[0058] Another aspect of the present invention provides a range hood, comprising a casing and a smoke collecting structure, the casing comprising a smoke collecting hood, the smoke collecting structure comprising a driving structure and a smoke collecting plate transmission-connected to the driving structure, the driving structure being mounted on the smoke collecting hood, the smoke collecting plate being mounted at the smoke inlet of the smoke collecting hood, the driving structure being capable of driving the smoke collecting plate to close and open the smoke inlet, and the range hood being operated using the above-described range hood operating method.

[0059] Optionally, it also includes:

[0060] A control unit, mounted on the housing and communicatively connected to the drive structure;

[0061] A temperature sensor, mounted on the smoke collecting structure or the housing and communicatively connected with the control unit;

[0062] A closed position sensor, installed at the smoke inlet and in communication connection with the control unit, for detecting whether the smoke collecting plate is closed in place;

[0063] An opening position sensor is installed on the driving structure and is in communication connection with the control unit, and is used for detecting whether the smoke collecting plate is fully opened.

[0064] Compared with the prior art, the present invention has at least the following beneficial effects:

[0065] The operating method of the range hood provided by the present invention is that the smoke collection structure can operate with corresponding opening current, closing current, opening time and closing time according to different ambient temperature ranges, so that the smoke collection structure can be fully opened and fully closed, thereby solving the problem in the prior art that the operating resistance of the smoke collection structure increases due to the decrease in ambient temperature, thereby causing the smoke collection structure to not be fully opened and closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 It is one of the step diagrams of the operating method of the range hood provided by the specific embodiment of the present invention;

[0067] Figure 2 This is the second step diagram of the method for operating the range hood provided by the specific embodiment of the present invention;

[0068] Figure 3 This is the third step diagram of the method for operating the range hood provided by the specific embodiment of the present invention;

[0069] Figure 4 This is the fourth step diagram of the method for operating the range hood provided by the specific embodiment of the present invention;

[0070] Figure 5 It is a structural schematic diagram of a range hood provided by a specific embodiment of the present invention.

[0071] In the figure:

[0072] 1. Bellows; 2. Smoke collecting hood; 3. Smoke collecting plate; 4. Driving structure; 5. Control unit; 6. Temperature sensor; 71. Closed position sensor; 72. Open position sensor. DETAILED DESCRIPTION

[0073] The following examples illustrate the present invention, but the present invention is not limited to these examples. Modifications to the specific embodiments of the present invention or equivalent replacement of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed by the present invention.

[0074] Please refer to Figure 1 The present invention provides an operating method of a range hood, comprising the following steps:

[0075] S1: In a normal temperature environment K1, when the total load of the smoke-collecting structure is G+Y1G, obtain the first opening current I1, the first closing current I2, the first opening time T1 and the first closing time T2 of the smoke-collecting structure; in a low temperature environment K2, when the total load of the smoke-collecting structure is G+Y2G, obtain the second opening current I3, the second closing current I4, the second opening time T3 and the second closing time T4 of the smoke-collecting structure;

[0076] S2: Divide the ambient temperature into a plurality of continuous temperature ranges, and set the initial opening current, initial closing current, initial opening time, and initial closing time of the smoke collecting structure in each temperature range according to I1, I2, I3, I4, T1, T2, T3, and T4;

[0077] S3: In each temperature range, the actual opening current, actual closing current, actual opening time, and actual closing time of the smoke-collecting structure are adjusted according to the initial opening current, initial closing current, initial opening time, initial closing time, and the actual operating position information of the smoke-collecting structure, until the smoke-collecting structure is fully opened and fully closed;

[0078] Among them, 20℃≤K1≤30℃, -20℃≤K2≤0℃, G is the load of the smoke-collecting structure when there is no oil stain, the value range of Y1 and Y2 is between 1%-50%, Y1>Y2, I1, I2, I3, I4 are all less than the maximum locked-rotor current Imax of the smoke-collecting structure.

[0079] It should be noted that the locked-rotor current Imax is the maximum operating current set during the design process of the range hood when the smoke-collecting structure is fully opened and fully closed.

[0080] The operating method of the range hood provided by the present invention is that the smoke collection structure can operate with corresponding opening current, closing current, opening time and closing time according to different ambient temperature ranges, so that the smoke collection structure can be fully opened and fully closed, thereby solving the problem in the prior art that the operating resistance of the smoke collection structure increases due to the decrease in ambient temperature, thereby causing the smoke collection structure to not be fully opened and closed.

[0081] Optionally, S2 includes the following steps: setting a first initial opening current Ia0, a first initial closing current Ib0, a first initial opening time Ta0, and a first initial closing time Tb0 of the smoke-collecting structure when the ambient temperature is in the first temperature range U1; setting a second initial opening current Ic0, a second initial closing current Id0, a second initial opening time Tc0, and a second initial closing time Td0 of the smoke-collecting structure when the ambient temperature is in the second temperature range U2; and setting a third initial opening current Ie0, a third initial closing current If0, a third initial opening time Te0, and a third initial closing time Tf0 of the smoke-collecting structure when the ambient temperature is in the third temperature range U3;

[0082] S3 comprises the following steps: when the ambient temperature is in the first temperature range U1, the third opening current Ian, the third closing current Ibn, the third opening time Tan, and the third closing time Tbn of the smoke-collecting structure are adjusted according to Ia0, Ib0, Ta0, Tb0 and the actual operation position information, so that the smoke-collecting structure is fully opened and fully closed; when the ambient temperature is in the second temperature range U2, the fourth opening current Icn, the fourth closing current Idn, the fourth opening time Tcn, and the fourth closing time Tdn of the smoke-collecting structure are adjusted according to Ic0, Id0, Tc0, and Td0; when the ambient temperature is in the third temperature range U3, the fifth opening current Ien, the fifth closing current Ifn, the fifth opening time Ten, and the fifth closing time Tfn of the smoke-collecting structure are adjusted according to Ie0, If0, Te0, and Tf0;

[0083] Among them, Ia0<Ic0<Ie0, Ib0<Id0<If0, Ta0<Tc0<Te0, Tb0<Td0<Tf0, U1, U2, U3 are three continuous temperature range intervals divided from high to low ambient temperature.

[0084] Optionally, 10%≤Y1≤20%, 3%≤Y2≤7%.

[0085] Optionally, in this embodiment, Y1=15%, Y2=5%.

[0086] Optionally, in this embodiment, K1 is 25°C and K2 is -10°C. 25°C is the normal temperature that is maintained for a long time in most areas throughout the year, and -10°C is the low temperature that is maintained for a long time in most areas throughout the year. Of course, for range hoods provided in specific areas, the values ​​of K1 and K2 can also be determined according to the actual local temperature conditions, which is not limited here.

[0087] Optionally, S2 includes the following steps:

[0088] S21: Set the larger value of I1 and I3 as Ia0, set the larger value of I2 and I4 as Ib0, set the larger value of T1 and T3 as Ta0, and set the larger value of T2 and T4 as Tb0.

[0089] According to experiments, I1 when K1 is 25℃, Y1=15% is theoretically close to I3 when K2 is -10℃, Y2=5%, so the larger value of I1 and I3 is set as Ia0; I2 when K1 is 25℃, Y1=15% is theoretically close to I4 when K2 is -10℃, Y2=5%, so the larger value of I2 and I4 is set as Ib0; =15% is theoretically closer to T3 when K2 is -10°C and Y2=5%, so the larger value of T1 and T3 is set to Ta0; T2 when K1 is 25°C and Y1=15% is theoretically closer to T4 when K2 is -10°C and Y2=5%, so the larger value of T2 and T4 is set to Tb0, thereby improving the value accuracy of Ia0, Ib0, Ta0, and Tb0.

[0090] S22: Set the sum of Ia0 and the first current value W1 to Ic0, set the sum of Ib0 and the second current value W2 to Id0, set the sum of Ta0 and the first time value H1 to Tc0, and set the sum of Tb0 and the second time value H2 to Td0, so that when the ambient temperature drops to the second temperature range U2, the smoke-collecting structure can be opened and closed.

[0091] S23: Set the sum of Ic0 and the third current value W3 to Ie0, set the sum of Id0 and the fourth current value W4 to If0, set the sum of Tc0 and the third time value H3 to Te0, and set the sum of Td0 and the fourth time value H4 to Tf0, so that when the ambient temperature drops to the third temperature range U3, the smoke-collecting structure can be opened and closed.

[0092] Among them, the value ranges of W1, W2, W3, and W4 are all between 20mA and 40mA, and the value ranges of H1, H2, H3, and H4 are all between 1s and 4s.

[0093] Optionally, in this embodiment, W1, W2, W3, and W4 are all 30 mA.

[0094] Please refer to Figure 2Optionally, in S3, when the ambient temperature is in the first temperature range U1, adjusting the third opening current Ian, the third closing current Ibn, the third opening time Tan, and the third closing time Tbn of the smoke-collecting structure according to Ia0, Ib0, Ta0, and Tb0 so that the smoke-collecting structure is fully opened and fully closed specifically includes the following steps:

[0095] S311: when the range hood is started and the current ambient temperature is within the first temperature range U1;

[0096] S312: Determine whether the range hood is used for the first time, if yes, proceed to S314, if no, proceed to S313;

[0097] S313: call out Ian, Ibn, Tan, and Tbn in the storage, and set Ian to Ia0, Ibn to Ib0, Tan to Ta0, and Tbn to Tb0;

[0098] S314: The control system operates the smoke collecting plate structure according to the instructions Ia0, Ib0, Ta0, and Tb0;

[0099] S315: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S316; if not, proceed to S317;

[0100] S316: Record Ia0 as Ian, record Ib0 as Ibn, record Ta0 as Tan, record Tb0 as Tbn, and store Ian, Ibn, Tan, and Tbn in the storage device. The smoke collecting plate structure operates according to Ian, Ibn, Tan, and Tbn, so that the smoke collecting structure can be opened and closed in place.

[0101] S317: Ia0, Ib0, Ta0, Tb0 all increase Y3, and then enter S318;

[0102] S318: Determine whether Ia0≥Imax, Ib0≥Imax, Ta0≥Tmax1, Tb0≥Tmax2. If yes, issue a fault alarm. If no, proceed to S319.

[0103] S319: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S316; if not, proceed to S317;

[0104] Wherein, Tmax1 is the maximum preset opening time of the smoke-collecting structure in the first temperature range U1, Tmax2 is the maximum preset closing time of the smoke-collecting structure in the first temperature range U1, and 5%≤Y3≤30%.

[0105] Optionally, in this embodiment, Y3=20%.

[0106] Optionally, Tmax1 is twice the first initial opening time Ta0 in S2 , and Tmax2 is twice the first initial closing time Tb0 in S2 .

[0107] Please refer to Figure 3 Optionally, in S3, when the ambient temperature is in the second temperature range U2, adjusting the fourth opening current Icn, the fourth closing current Idn, the fourth opening time Tcn, and the fourth closing time Tdn of the smoke collecting structure according to Ic0, Id0, Tc0, and Td0 specifically includes the following steps:

[0108] S321: when the range hood is started and the current ambient temperature is within the first temperature range U1;

[0109] S322: Determine whether the range hood is used for the first time, if yes, proceed to S324, if no, proceed to S323;

[0110] S323: Retrieve Icn, Idn, Tcn, and Tdn from the memory, and set Icn to Ic0, Idn to Id0, Tcn to Tc0, and Tdn to Td0;

[0111] S324: The control system operates the smoke collecting plate structure according to the instructions Ic0, Id0, Tc0, and Td0;

[0112] S325: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S326; if not, proceed to S327;

[0113] S326: Record Ic0 as Icn, record Id0 as Idn, record Tc0 as Tcn, record Td0 as Tdn, and store Icn, Idn, Tcn, and Tdn in the storage. The smoke collecting plate structure operates according to Icn, Idn, Tcn, and Tdn, so that the smoke collecting structure can be opened and closed in place.

[0114] S327: Ic0, Id0, Tc0, Td0 are all increased by Y4, and then enter S328;

[0115] S328: Determine whether Ic0≥Imax, Id0≥Imax, Tc0≥Tmax3, Td0≥Tmax4. If yes, issue a fault alarm. If no, proceed to S329.

[0116] S329: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S326; if not, proceed to S327;

[0117] Wherein, Tmax3 is the maximum preset opening time of the smoke-collecting structure, Tmax4 is the maximum preset closing time of the smoke-collecting structure, and 5%≤Y4≤30%.

[0118] Optionally, in this embodiment, Y4=20%.

[0119] Optionally, Tmax3 is twice the second initial opening time Tc0 in S2 , and Tmax4 is twice the second initial closing time Td0 in S2 .

[0120] Please refer to Figure 4 Optionally, in S3, when the ambient temperature is in the second temperature range U2, adjusting the fourth opening current Ien, the fourth closing current Ifn, the fourth opening time Ten, and the fourth closing time Tfn of the smoke collecting structure according to Ie0, If0, Te0, and Tf0 specifically includes the following steps:

[0121] S331: when the range hood is started and the current ambient temperature is within the first temperature range U1;

[0122] S332: Determine whether the range hood is used for the first time, if yes, proceed to S334, if no, proceed to S333;

[0123] S333: call out Ien, Ifn, Ten, and Tfn in the storage, and set Ien to Ie0, Ifn to If0, Ten to Te0, and Tfn to Tf0;

[0124] S334: The control system operates the smoke collecting plate structure according to the instructions of Ie0, If0, Te0, and Tf0;

[0125] S335: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S336; if not, proceed to S337;

[0126] S336: Record Ie0 as Ien, If0 as Ifn, Te0 as Ten, Tf0 as Tfn, and store Ien, Ifn, Ten, and Tfn in a storage device. The smoke collecting plate structure operates according to Ien, Ifn, Ten, and Tfn, so that the smoke collecting structure can be opened and closed in place.

[0127] S337: Ie0, If0, Te0, Tf0 all increase by Y5, and then enter S338;

[0128] S338: Determine whether Ie0≥Imax, If0≥Imax, Te0≥Tmax5, Tf0≥Tmax6. If so, issue a fault alarm. If not, proceed to S339.

[0129] S339: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S336; if not, proceed to S337;

[0130] Wherein, Tmax5 is the maximum preset opening time of the smoke-collecting structure, Tmax6 is the maximum preset closing time of the smoke-collecting structure, and 5%≤Y5≤30%.

[0131] Optionally, in this embodiment, Y5=20%.

[0132] Optionally, Tmax5 is twice the third initial opening time Te0 in S2 , and Tmax6 is twice the third initial closing time Tf0 in S2 .

[0133] Optionally, the first temperature range U1 is 15°C to 50°C, the second temperature range U2 is 0°C to 15°C, and the third temperature range U3 is -30°C to 0°C.

[0134] Please refer to Figure 5 On the other hand, the present invention provides a range hood, including a casing and a smoke collecting structure, the casing including a smoke collecting hood 2, the smoke collecting structure including a driving structure 4 and a smoke collecting plate 3 transmission-connected to the driving structure 4, the driving structure 4 is mounted on the smoke collecting hood 2, the smoke collecting plate 3 is mounted at the smoke inlet of the smoke collecting hood 2, the driving structure 4 can drive the smoke collecting plate 3 to close and open the smoke inlet, and the range hood is operated using the above range hood operation method.

[0135] Optionally, it also includes a control unit 5, a temperature sensor 6, a closed position sensor 71 and an open position sensor 72. The control unit 5 is mounted on the housing and is in communication connection with the drive structure 4. The temperature sensor 6 is mounted on the smoke collecting structure or the housing and is in communication connection with the control unit 5. The closed position sensor 71 is mounted at the smoke inlet and is in communication connection with the control unit 5, and is used to detect whether the smoke collecting plate 3 is closed in place. The open position sensor 72 is mounted on the drive structure 4 and is in communication connection with the control unit 5, and is used to detect whether the smoke collecting plate 3 is opened in place.

[0136] Optionally, a fan is further included, and the casing further includes a wind box 1 , and the fan and the control unit 5 are both mounted on the wind box 1 .

[0137] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A method for operating a range hood, characterized in that: The following steps are involved: S1: In a normal temperature environment K1, when the total load of the smoke-collecting structure is G+Y1G, obtain the first opening current I1, the first closing current I2, the first opening time T1 and the first closing time T2 of the smoke-collecting structure; in a low temperature environment K2, when the total load of the smoke-collecting structure is G+Y2G, obtain the second opening current I3, the second closing current I4, the second opening time T3 and the second closing time T4 of the smoke-collecting structure; S2: Divide the ambient temperature into a plurality of continuous temperature ranges, and set the initial opening current, initial closing current, initial opening time, and initial closing time of the smoke collecting structure in each temperature range according to I1, I2, I3, I4, T1, T2, T3, and T4; S3: In each temperature range, the actual opening current, actual closing current, actual opening time, and actual closing time of the smoke-collecting structure are adjusted according to the initial opening current, initial closing current, initial opening time, initial closing time, and the actual operating position information of the smoke-collecting structure, until the smoke-collecting structure is fully opened and fully closed; Among them, 20℃≤K1≤30℃, -20℃≤K2≤0℃, G is the load of the smoke-collecting structure when there is no oil stain, the value range of Y1 and Y2 is between 1%-50%, Y1>Y2, I1, I2, I3, I4 are all less than the maximum locked-rotor current Imax of the smoke-collecting structure.

2. The method for operating a range hood according to claim 1, characterized in that: S2 includes the following steps: When the ambient temperature is in the first temperature range U1, the first initial opening current Ia0, the first initial closing current Ib0, the first initial opening time Ta0, and the first initial closing time Tb0 of the smoke-collecting structure are set; when the ambient temperature is in the second temperature range U2, the second initial opening current Ic0, the second initial closing current Id0, the second initial opening time Tc0, and the second initial closing time Td0 of the smoke-collecting structure are set; when the ambient temperature is in the third temperature range U3, the third initial opening current Ie0, the third initial closing current If0, the third initial opening time Te0, and the third initial closing time Tf0 of the smoke-collecting structure are set; S3 comprises the following steps: when the ambient temperature is in the first temperature range U1, the third opening current Ian, the third closing current Ibn, the third opening time Tan, and the third closing time Tbn of the smoke-collecting structure are adjusted according to Ia0, Ib0, Ta0, Tb0 and the actual operation position information, so that the smoke-collecting structure is fully opened and fully closed; when the ambient temperature is in the second temperature range U2, the fourth opening current Icn, the fourth closing current Idn, the fourth opening time Tcn, and the fourth closing time Tdn of the smoke-collecting structure are adjusted according to Ic0, Id0, Tc0, and Td0; when the ambient temperature is in the third temperature range U3, the fifth opening current Ien, the fifth closing current Ifn, the fifth opening time Ten, and the fifth closing time Tfn of the smoke-collecting structure are adjusted according to Ie0, If0, Te0, and Tf0; Among them, Ia0<Ic0<Ie0, Ib0<Id0<If0, Ta0<Tc0<Te0, Tb0<Td0<Tf0, U1, U2, U3 are three continuous temperature range intervals divided from high to low ambient temperature.

3. The method for operating a range hood according to claim 1, characterized in that: 10%≤Y1≤20%, 3%≤Y2≤7%.

4. The method for operating a range hood according to claim 1, characterized in that: K1 is 25℃ and K2 is -10℃.

5. The method for operating a range hood according to claim 2, characterized in that: S2 includes the following steps: S21: the larger value of I1 and I3 is set as Ia0, the larger value of I2 and I4 is set as Ib0, the larger value of T1 and T3 is set as Ta0, and the larger value of T2 and T4 is set as Tb0; S22: setting the sum of Ia0 and the first current value W1 to Ic0, setting the sum of Ib0 and the second current value W2 to Id0, setting the sum of Ta0 and the first time value H1 to Tc0, and setting the sum of Tb0 and the second time value H2 to Td0; S23: setting the sum of Ic0 and the third current value W3 to Ie0, setting the sum of Id0 and the fourth current value W4 to If0, setting the sum of Tc0 and the third time value H3 to Te0, and setting the sum of Td0 and the fourth time value H4 to Tf0; Among them, the value ranges of W1, W2, W3, and W4 are all between 20mA and 40mA, and the value ranges of H1, H2, H3, and H4 are all between 1s and 4s.

6. The method for operating a range hood according to claim 2 or 5, characterized in that: In S3, when the ambient temperature is in the first temperature range U1, adjusting the third opening current Ian, the third closing current Ibn, the third opening time Tan, and the third closing time Tbn of the smoke-collecting structure according to Ia0, Ib0, Ta0, and Tb0 so that the smoke-collecting structure is fully opened and fully closed specifically includes the following steps: S311: when the range hood is started and the current ambient temperature is within the first temperature range U1; S312: Determine whether the range hood is used for the first time, if yes, proceed to S314, if no, proceed to S313; S313: Retrieve Ian, Ibn, Tan, and Tbn from the storage, and set Ian to Ia0, Ibn to Ib0, Tan to Ta0, and Tbn to Tb0; S314: The control system operates the smoke collecting plate structure according to the instructions Ia0, Ib0, Ta0, and Tb0; S315: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S316; if not, proceed to S317; S316: Record Ia0 as Ian, record Ib0 as Ibn, record Ta0 as Tan, record Tb0 as Tbn, and store Ian, Ibn, Tan, and Tbn in the storage device. The smoke collecting plate structure operates according to Ian, Ibn, Tan, and Tbn. S317: Ia0, Ib0, Ta0, Tb0 all increase Y3, and then enter S318; S318: Determine whether Ia0≥Imax, Ib0≥Imax, Ta0≥Tmax1, Tb0≥Tmax2. If yes, issue a fault alarm. If no, proceed to S319. S319: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S316; if not, proceed to S317; Wherein, Tmax1 is the maximum preset opening time of the smoke-collecting structure in the first temperature range U1, Tmax2 is the maximum preset closing time of the smoke-collecting structure in the first temperature range U1, and 5%≤Y3≤30%.

7. The method for operating a range hood according to claim 6, characterized in that: Tmax1 is twice the first initial opening time Ta0 in S2 , and Tmax2 is twice the first initial closing time Tb0 in S2 .

8. The method for operating a range hood according to claim 2 or 5, characterized in that: In S3, when the ambient temperature is in the second temperature range U2, adjusting the fourth opening current Icn, the fourth closing current Idn, the fourth opening time Tcn, and the fourth closing time Tdn of the smoke collecting structure according to Ic0, Id0, Tc0, and Td0 specifically includes the following steps: S321: when the range hood is started and the current ambient temperature is within the first temperature range U1; S322: Determine whether the range hood is used for the first time, if yes, proceed to S324, if no, proceed to S323; S323: Retrieve Icn, Idn, Tcn, and Tdn from the memory, and set Icn to Ic0, Idn to Id0, Tcn to Tc0, and Tdn to Td0; S324: The control system operates the smoke collecting plate structure according to the instructions Ic0, Id0, Tc0, and Td0; S325: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S326; if not, proceed to S327; S326: Record Ic0 as Icn, record Id0 as Idn, record Tc0 as Tcn, record Td0 as Tdn, and store Icn, Idn, Tcn, and Tdn in the storage. The smoke collecting plate structure operates according to Icn, Idn, Tcn, and Tdn. S327: Ic0, Id0, Tc0, Td0 are all increased by Y4, and then enter S328; S328: Determine whether Ic0≥Imax, Id0≥Imax, Tc0≥Tmax3, Td0≥Tmax4. If yes, issue a fault alarm. If no, proceed to S329. S329: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S326; if not, proceed to S327; Wherein, Tmax3 is the maximum preset opening time of the smoke-collecting structure, Tmax4 is the maximum preset closing time of the smoke-collecting structure, and 5%≤Y4≤30%.

9. The method for operating a range hood according to claim 8, characterized in that: Tmax3 is twice the second initial opening time Tc0 in S2 , and Tmax4 is twice the second initial closing time Td0 in S2 .

10. The method for operating a range hood according to claim 2 or 5, characterized in that: In S3, when the ambient temperature is in the second temperature range U2, adjusting the fourth opening current Ien, the fourth closing current Ifn, the fourth opening time Ten, and the fourth closing time Tfn of the smoke collecting structure according to Ie0, If0, Te0, and Tf0 specifically includes the following steps: S331: when the range hood is started and the current ambient temperature is within the first temperature range U1; S332: Determine whether the range hood is used for the first time, if yes, proceed to S334, if no, proceed to S333; S333: call out Ien, Ifn, Ten, and Tfn in the storage, and set Ien to Ie0, Ifn to If0, Ten to Te0, and Tfn to Tf0; S334: The control system operates the smoke collecting plate structure according to the instructions of Ie0, If0, Te0, and Tf0; S335: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S336; if not, proceed to S337; S336: Record Ie0 as Ien, If0 as Ifn, Te0 as Ten, Tf0 as Tfn, and store Ien, Ifn, Ten, and Tfn in the storage device. The smoke collecting plate structure operates according to Ien, Ifn, Ten, and Tfn. S337: Ie0, If0, Te0, Tf0 all increase by Y5, and then enter S338; S338: Determine whether Ie0≥Imax, If0≥Imax, Te0≥Tmax5, Tf0≥Tmax6. If so, issue a fault alarm. If not, proceed to S339. S339: Determine whether the smoke-collecting structure is fully opened or fully closed. If so, proceed to S336; if not, proceed to S337; Wherein, Tmax5 is the maximum preset opening time of the smoke-collecting structure, Tmax6 is the maximum preset closing time of the smoke-collecting structure, and 5%≤Y5≤30%.

11. The method for operating a range hood according to claim 10, characterized in that: Tmax5 is twice the third initial opening time Te0 in S2 , and Tmax6 is twice the third initial closing time Tf0 in S2 .

12. The method for operating a range hood according to claim 2 or 5, characterized in that: The first temperature range U1 is 15°C to 50°C, the second temperature range U2 is 0°C to 15°C, and the third temperature range U3 is -30°C to 0°C.

13. A range hood, characterized in that: The range hood comprises a casing and a smoke collecting structure, wherein the casing comprises a smoke collecting hood (2), the smoke collecting structure comprises a driving structure (4) and a smoke collecting plate (3) drivingly connected to the driving structure (4), the driving structure (4) is mounted on the smoke collecting hood (2), the smoke collecting plate (3) is mounted at the smoke inlet of the smoke collecting hood (2), the driving structure (4) is capable of driving the smoke collecting plate (3) to close and open the smoke inlet, and the range hood is operated by the range hood operation method according to any one of claims 1 to 12.

14. The range hood according to claim 13, characterized in that: Also includes: A control unit (5), mounted on the housing and in communication connection with the driving structure (4); A temperature sensor (6) is mounted on the smoke collecting structure or the housing and is in communication connection with the control unit (5); A closed position sensor (71), installed at the smoke inlet and in communication connection with the control unit (5), for detecting whether the smoke collecting plate (3) is closed in place; An opening position sensor (72) is mounted on the driving structure (4) and is in communication connection with the control unit (5), and is used to detect whether the smoke collecting plate (3) is fully opened.

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