Method for operating an extractor hood and extractor hood

Abstract

The application discloses an operating method of an oil fume extractor and the oil fume extractor. The operating method of the oil fume extractor comprises the following steps: S1: obtaining a first opening current I1, a first closing current I2, a first opening time T1 and a first closing time T2 of a smoke gathering structure in a state that the total load of the smoke gathering structure is G+Y1G in a K1 normal temperature environment; obtaining a second opening current I3, a second closing current I4, a second opening time T3 and a second closing time T4 of the smoke gathering structure in a state that the total load of the smoke gathering structure is G+Y2G in a K2 low temperature environment; S2: dividing the environment temperature into a plurality of continuous temperature range intervals, and setting the initial opening current, the initial closing current, the initial opening time and the initial closing time of the smoke gathering structure in each temperature range interval according to I1, I2, I3, I4, T1, T2, T3 and T4.

Description

TECHNICAL FIELD

[0001] The present application relates to the kitchen electrical technology field, and particularly relates to a running method of an extractor hood and the extractor hood. BACKGROUND

[0002] With the technical iteration development of the extractor hood, the extractor hood with an automatic opening and closing smoke plate is more and more common. The smoke plate is automatically opened in the working state, the smoke collection range is expanded, the exhaust capacity is improved, the smoke plate is automatically closed in the non-working state, and the integrated appearance is formed. The appearance is flat and simple, and it is convenient for users to clean and maintain. The smoke plate usually adopts a driving motor plus a multi-connecting rod drive to realize opening and closing. There are many rotating hinge points, the structure is complex, and the opening and closing failure rate of the smoke plate is high in the actual use process of the product. Especially in the low-temperature environment in the northern winter, the resistance between the driving motor and the connecting rod increases, and the problems that the smoke plate cannot be opened to the set angle or cannot be completely closed when being closed are prone to occur, thereby causing the problems that the smoke collection area is reduced, the exhaust effect is poor, and the oil stains on the back of the smoke plate drop on the cooking bench and are difficult to clean.

[0003] Therefore, there is an urgent need for a running method of an extractor hood to solve the above problems. SUMMARY

[0004] The present application aims to at least solve one of the problems existing in the prior art to some extent. To this end, the present application provides a running method of an extractor hood, which can improve the opening and closing degrees of the extractor hood in low-temperature and normal-temperature environments.

[0005] The above-mentioned purpose is achieved by the following technical solutions:

[0006] A running method of an extractor hood, comprising the following steps:

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

[0008] S2: dividing the environment temperature into a plurality of continuous temperature range intervals, and setting the initial opening current, the initial closing current, the initial opening time and the initial closing time of the smoke collection structure in each temperature range interval according to I1, I2, I3, I4, T1, T2, T3 and T4;

[0009] S3: adjusting the actual opening current, the actual closing current, the actual opening time, the actual closing time of the smoke gathering structure according to the initial opening current, the initial closing current, the initial opening time, the initial closing time and the position information of the actual operation of the smoke gathering structure in each temperature range interval until the smoke gathering structure is opened to the position and closed to the position;

[0010] Wherein, 20℃≤K1≤30℃, -20℃≤K2≤0℃, G is the load of the smoke gathering structure without adhering oil stains, 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 gathering structure.

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

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

[0013] Wherein, 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 according to the ambient temperature.

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

[0015] Optionally, K1 is 25℃, K2 is -10℃.

[0016] Optionally, S2 comprises the following steps:

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

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

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

[0020] Wherein, the value range of W1, W2, W3 and W4 is between 20mA and 40mA, and the value range of H1, H2, H3 and H4 is 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 and the third closing current Ibn of the smoke gathering structure, and the third opening time Tan and the third closing time Tbn according to Ia0, Ib0, Ta0 and Tb0, so that the smoke gathering structure is opened and closed to the right position, specifically comprising the following steps:

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

[0023] S312: judging whether the range hood is used for the first time, if yes, entering S314, if not, entering S313;

[0024] S313: calling out Ian, Ibn, Tan and Tbn in the storage, and setting Ian as Ia0, Ibn as Ib0, Tan as Ta0 and Tbn as Tb0;

[0025] S314: controlling the system to run according to the Ia0, Ib0, Ta0 and Tb0 instructions;

[0026] S315: judging whether the smoke gathering structure is opened and closed to the right position, if yes, entering S316, if not, entering S317;

[0027] S316: record Ia0 as Ian, Ib0 as Ibn, Ta0 as Tan, and Tb0 as Tbn, and store Ian, Ibn, Tan, and Tbn into the storage, and the smoke collecting structure operates according to Ian, Ibn, Tan, and Tbn this time;

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

[0029] S318: determine whether Ia0≥Imax, Ib0≥Imax, Ta0≥Tmax1, and Tb0≥Tmax2, if yes, issue a fault alarm, and if no, enter S319;

[0030] S319: determine whether the smoke collecting structure is opened to the position or closed to the position, if yes, enter S316, and if no, enter S317;

[0031] wherein Tmax1 is the maximum preset opening time of the smoke collecting structure when the environment temperature is in the first temperature range U1, Tmax2 is the maximum preset closing time of the smoke collecting structure when the environment temperature is 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 environment 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: the range hood is started and the current environment temperature is in the first temperature range U1;

[0035] S322: determine whether the range hood is used for the first time, if yes, enter S324, and if no, enter S323;

[0036] S323: call out Icn, Idn, Tcn, and Tdn in the storage, and set Icn as Ic0, Idn as Id0, Tcn as Tc0, and Tdn as Td0;

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

[0038] S325: determine whether the smoke collecting structure is opened to the position or closed to the position, if yes, enter S326, and if no, enter S327;

[0039] S326: record Ic0 as Icn, record Id0 as Idn, record Tc0 as Tcn, record Td0 as Tdn, and store Icn, Idn, Tcn, Tdn into the storage, and the smoke collecting structure operates according to Icn, Idn, Tcn, Tdn this time;

[0040] S327: increase Y4 to Ic0, Id0, Tc0, Td0, and then enter S328;

[0041] S328: judge whether Ic0≥Imax, Id0≥Imax, Tc0≥Tmax3, Td0≥Tmax4, if yes, issue a fault alarm, if not, enter S329;

[0042] S329: judge whether the smoke collecting structure is opened to the position or closed to the position, if yes, enter S326, if not, enter 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, 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 third temperature range U3, adjusting 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 according to Ie0, If0, Te0, Tf0 specifically includes the following steps:

[0046] S331: the range hood is started and the current ambient temperature is in the third temperature range U3;

[0047] S332: judge whether the range hood is used for the first time, if yes, enter S334, if not, enter S333;

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

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

[0050] S335: judge whether the smoke collecting structure is opened to the position or closed to the position, if yes, enter S336, if not, enter S337;

[0051] S336: record Ie0 as Ien, record If0 as Ifn, record Te0 as Ten, record Tf0 as Tfn, and store Ien, Ifn, Ten, Tfn into the storage, and the smoke collecting structure operates according to Ien, Ifn, Ten, Tfn this time;

[0052] S337: increase Y5 by 5% for Ie0, If0, Te0, Tf0, and then enter S338;

[0053] S338: determine whether Ie0≥Imax, If0≥Imax, Te0≥Tmax5, Tf0≥Tmax6, if yes, issue a fault alarm, if not, enter S339;

[0054] S339: determine whether the smoke collecting structure is opened to the position or closed to the position, if yes, enter S336, if not, enter 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, 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℃ to 50℃, the second temperature range U2 is 0℃ to 15℃, and the third temperature range U3 is -30℃ to 0℃.

[0058] Another aspect of the present application provides an extractor hood, comprising a casing and a smoke collecting structure, the casing comprising a smoke collecting cover, the smoke collecting structure comprising a driving structure and a smoke collecting plate in transmission connection with the driving structure, the driving structure being installed on the smoke collecting cover, the smoke collecting plate being installed at the smoke inlet of the smoke collecting cover, the driving structure being capable of driving the smoke collecting plate to close and open the smoke inlet, the extractor hood operating according to the operating method of the extractor hood.

[0059] Optionally, further comprising:

[0060] a control unit installed on the casing and in communication connection with the driving structure;

[0061] a temperature sensor installed on the smoke collecting structure or the casing and in communication connection 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 to the position;

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

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

[0065] The operation method of the range hood provided by the present application can make the smoke collecting structure open to the position and close to the position according to different environmental temperature ranges and corresponding opening current, closing current, opening time and closing time, thereby solving the problem that the operation resistance of the smoke collecting structure increases due to the decrease of the environmental temperature in the prior art, and further causing the smoke collecting structure to not open to the position and not close to the position. BRIEF DESCRIPTION OF DRAWINGS

[0066] Figure 1 is one of the step diagrams of the operation method of the range hood provided by the embodiment of the present application;

[0067] Figure 2 is the second step diagram of the operation method of the range hood provided by the embodiment of the present application;

[0068] Figure 3 is the third step diagram of the operation method of the range hood provided by the embodiment of the present application;

[0069] Figure 4 is the fourth step diagram of the operation method of the range hood provided by the embodiment of the present application;

[0070] Figure 5 is the structural schematic diagram of the range hood provided by the embodiment of the present application.

[0071] In the drawings:

[0072] 1, bellow; 2, smoke collecting cover; 3, smoke collecting plate; 4, driving structure; 5, control unit; 6, temperature sensor; 71, closing position sensor; 72, opening position sensor. DETAILED DESCRIPTION

[0073] The following embodiments are used to illustrate the present application, but the present application is not limited by these embodiments. The specific embodiments of the present application are modified or some technical features are replaced equivalently without departing from the spirit of the present application, and all of them should be covered in the technical solution range of the present application.

[0074] Please refer to Figure 1 The present application provides an operation method of a range hood, which comprises the following steps:

[0075] S1: in a K1 normal temperature environment, in a state that the total load of the smoke gathering structure is G+Y1G, acquire 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; in a K2 low temperature environment, in a state that the total load of the smoke gathering structure is G+Y2G, acquire the second opening current I3, the second closing current I4, the second opening time T3 and the second closing time T4 of the smoke gathering structure;

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

[0077] S3: in each temperature range interval, adjust the actual opening current, the actual closing current, the actual opening time and the actual closing time of the smoke gathering structure according to the initial opening current, the initial closing current, the initial opening time, the initial closing time and the position information actually run by the smoke gathering structure, until the smoke gathering structure is opened to the position and closed to the position;

[0078] Wherein, 20℃≤K1≤30℃, -20℃≤K2≤0℃, G is the load of the smoke gathering structure without adhering dirt, the value range of Y1 and Y2 is between 1%-50%, Y1>Y2, I1, I2, I3 and I4 are all less than the maximum locked-rotor current Imax of the smoke gathering structure.

[0079] It should be noted that the locked-rotor current Imax is the maximum running current of the range hood when the smoke gathering structure is opened to the position and closed to the position, which is set in the design process.

[0080] The running method of the range hood provided by the application can make the smoke gathering structure run with corresponding opening current, closing current, opening time and closing time according to different environment temperature ranges, so that the smoke gathering structure can be opened to the position and closed to the position, thereby solving the problem that the running resistance of the smoke gathering structure increases due to the decrease of the environment temperature in the prior art, and the smoke gathering structure cannot be opened to the position and closed to the position.

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

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

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

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

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

[0086] Optionally, in the embodiment, K1 is 25℃, and K2 is -10℃. 25℃ is the normal temperature that most areas maintain for a long time in a year, and -10℃ is the low temperature that most areas maintain for a long time in a year. Of course, for the range hood provided for a specific area, K1 and K2 can also be valued according to the actual temperature of the local area, which is not limited here.

[0087] Optionally, S2 comprises 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 the experiment, I1 at K1 of 25℃ and Y1 of 15% is theoretically closer to I3 at K2 of -10℃ and Y2 of 5%, so the larger value of I1 and I3 is set as Ia0; I2 at K1 of 25℃ and Y1 of 15% is theoretically closer to I4 at K2 of -10℃ and Y2 of 5%, so the larger value of I2 and I4 is set as Ib0; T1 at K1 of 25℃ and Y1 of 15% is theoretically closer to T3 at K2 of -10℃ and Y2 of 5%, so the larger value of T1 and T3 is set as Ta0; T2 at K1 of 25℃ and Y1 of 15% is theoretically closer to T4 at K2 of -10℃ and Y2 of 5%, so the larger value of T2 and T4 is set as Tb0, thereby improving the value accuracy of Ia0, Ib0, Ta0 and Tb0.

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

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

[0092] Wherein, the value range of W1, W2, W3 and W4 is between 20mA and 40mA, and the value range of H1, H2, H3 and H4 is between 1s and 4s.

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

[0094] Please refer to Figure 2Optionally, in S3, 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 collection structure are adjusted according to Ia0, Ib0, Ta0, and Tb0 so that the smoke collection structure is opened to the position and closed to the position, specifically comprising the following steps:

[0095] S311: The extractor hood is started, and the current ambient temperature is in the first temperature range U1;

[0096] S312: It is judged whether the extractor hood is used for the first time. If yes, S314 is entered. If no, S313 is entered.

[0097] S313: Ian, Ibn, Tan, and Tbn in the storage are called out, Ian is set as Ia0, Ibn is set as Ib0, Tan is set as Ta0, and Tbn is set as Tb0.

[0098] S314: The control system controls the smoke collection plate structure to operate according to the Ia0, Ib0, Ta0, and Tb0 instructions.

[0099] S315: It is judged whether the smoke collection structure is opened to the position and closed to the position. If yes, S316 is entered. If no, S317 is entered.

[0100] S316: Ia0 is recorded as Ian, Ib0 is recorded as Ibn, Ta0 is recorded as Tan, and Tb0 is recorded as Tbn. Ian, Ibn, Tan, and Tbn are stored in the storage. The smoke collection plate structure operates according to Ian, Ibn, Tan, and Tbn this time so that the smoke collection structure can be opened to the position and closed to the position.

[0101] S317: Ia0, Ib0, Ta0, and Tb0 are all increased by Y3, and then S318 is entered.

[0102] S318: It is judged whether Ia0≥Imax, Ib0≥Imax, Ta0≥Tmax1, and Tb0≥Tmax2. If yes, a fault alarm is issued. If no, S319 is entered.

[0103] S319: It is judged whether the smoke collection structure is opened to the position and closed to the position. If yes, S316 is entered. If no, S317 is entered.

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

[0105] Optionally, in the 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 collection structure according to Ic0, Id0, Tc0, and Td0 specifically includes the following steps:

[0108] S321: The range hood is started, and the current ambient temperature is in the first temperature range U1;

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

[0110] S323: Retrieve Icn, Idn, Tcn, and Tdn in the storage, and set Icn as Ic0, Idn as Id0, Tcn as Tc0, and Tdn as Td0;

[0111] S324: Control the system to operate the smoke collection structure according to the Ic0, Id0, Tc0, and Td0 instructions;

[0112] S325: Determine whether the smoke collection structure is opened to the position and closed to the position. If yes, go to S326, and if no, go to S327;

[0113] S326: Record Ic0 as Icn, Id0 as Idn, Tc0 as Tcn, and Td0 as Tdn, and store Icn, Idn, Tcn, and Tdn in the storage. The smoke collection structure operates according to Icn, Idn, Tcn, and Tdn this time to make the smoke collection structure open to the position and close to the position;

[0114] S327: Increase Ic0, Id0, Tc0, and Td0 by Y4, and then go to S328;

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

[0116] S329: Determine whether the smoke collection structure is opened to the position and closed to the position. If yes, go to S326, and if no, go to S327;

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

[0118] Optionally, in the 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 third temperature range U3, adjusting the fifth opening current Ien, the fifth closing current Ifn, the fifth opening time Ten, and the fifth closing time Tfn of the smoke collection structure according to Ie0, If0, Te0, and Tf0 specifically includes the following steps:

[0121] S331: The range hood is started, and the current ambient temperature is in the third temperature range U3;

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

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

[0124] S334: Control the system to operate the smoke collection plate structure according to the Ie0, If0, Te0, and Tf0 instructions;

[0125] S335: Determine whether the smoke collection structure is opened to the position and closed to the position. If yes, go to S336, and if no, go to S337;

[0126] S336: Record Ie0 as Ien, If0 as Ifn, Te0 as Ten, and Tf0 as Tfn, and store Ien, Ifn, Ten, and Tfn in the storage. The smoke collection plate structure operates according to Ien, Ifn, Ten, and Tfn this time to make the smoke collection structure open to the position and close to the position;

[0127] S337: Increase Y5 to Ie0, If0, Te0, and Tf0, and then go to S338;

[0128] S338: Determine whether Ie0≥Imax, If0≥Imax, Te0≥Tmax5, and Tf0≥Tmax6. If yes, issue a fault alarm, and if no, go to S339;

[0129] S339: judging whether the smoke gathering structure is opened to the position or closed to the position, if yes, entering S336, if no, entering S337;

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

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

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

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

[0134] Please refer to Figure 5 In another aspect, the application provides a range hood, comprising a casing and a smoke gathering structure, the casing comprising a smoke collecting cover 2, and the smoke gathering structure comprising a driving structure 4 and a smoke gathering plate 3 in transmission connection with the driving structure 4, the driving structure 4 being installed on the smoke collecting cover 2, and the smoke gathering plate 3 being installed at the smoke inlet of the smoke collecting cover 2, the driving structure 4 being capable of driving the smoke gathering plate 3 to close and open the smoke inlet, and the range hood being operated by the operation method of the range hood.

[0135] Optionally, the range hood further comprises a control unit 5, a temperature sensor 6, a closed position sensor 71 and an open position sensor 72, the control unit 5 being installed on the casing and in communication connection with the driving structure 4, the temperature sensor 6 being installed on the smoke gathering structure or the casing and in communication connection with the control unit 5, the closed position sensor 71 being installed at the smoke inlet and in communication connection with the control unit 5, and the open position sensor 72 being installed on the driving structure 4 and in communication connection with the control unit 5.

[0136] Optionally, the range hood further comprises a fan, and the casing further comprises a wind box 1, the fan and the control unit 5 being installed on the wind box 1.

[0137] The above only describes some embodiments of the application. Those skilled in the art can make several modifications and improvements without departing from the inventive concept, and these all belong to the protection scope of the application.

Claims

1. A method of operating a range hood, characterized in that, Comprising the following steps: S1: In the state of K1 normal temperature environment, the total load of the smoke 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 structure are obtained; in the state of K2 low temperature environment, the total load of the smoke structure is G+Y2G, the second opening current I3, the second closing current I4, the second opening time T3 and the second closing time T4 of the smoke structure are obtained; S2: The ambient 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 structure in each temperature range interval are set according to I1, I2, I3, I4, T1, T2, T3 and T4; S3: In each temperature range interval, the actual opening current, the actual closing current, the actual opening time and the actual closing time of the smoke structure are adjusted according to the initial opening current, the initial closing current, the initial opening time, the initial closing time and the position information of the actual operation of the smoke structure, until the smoke structure is opened to the position and closed to the position; Wherein, 20℃≤K1≤30℃, -20℃≤K2≤0℃, G is the load of the smoke structure without adhering dirt, the value range of Y1 and Y2 is between 1%-50%, Y1>Y2, I1, I2, I3 and I4 are all less than the maximum locked-rotor current Imax of the smoke structure.

2. The method of operating a range hood according to claim 1, wherein, S2 comprises the following steps: 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 structure when the ambient temperature is in the first temperature range U1 are set, 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 structure when the ambient temperature is in the second temperature range U2 are set, and 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 structure when the ambient temperature is in the third temperature range U3 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 structure are adjusted according to Ia0, Ib0, Ta0, Tb0 and the position information of the actual operation, so that the smoke structure is opened to the position and closed to the position, 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 structure are adjusted according to Ic0, Id0, Tc0 and Td0, and 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 structure are adjusted according to Ie0, If0, Te0 and Tf0; Wherein, Ia0 < Ic0 < Ie0, Ib0 < Id0 < If0, Ta0 < Tc0 < Te0, Tb0 < Td0 < Tf0, U1, U2, U3 are three consecutive temperature range intervals divided from high to low according to the ambient temperature.

3. The method of operating a range hood according to claim 1, wherein, 10%≤Y1≤20%, 3%≤Y2≤7%.

4. The method of operating a range hood according to claim 1, wherein, K1 is 25℃, K2 is -10℃.

5. The method of operating a range hood according to claim 2, wherein, S2 comprises the following steps: 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; S22: set the sum of Ia0 and a first current value W1 as Ic0, set the sum of Ib0 and a second current value W2 as Id0, set the sum of Ta0 and a first time value H1 as Tc0, and set the sum of Tb0 and a second time value H2 as Td0; S23: set the sum of Ic0 and a third current value W3 as Ie0, set the sum of Id0 and a fourth current value W4 as If0, set the sum of Tc0 and a third time value H3 as Te0, and set the sum of Td0 and a fourth time value H4 as Tf0; Wherein, the value range of W1, W2, W3, W4 is between 20mA and 40mA, and the value range of H1, H2, H3, H4 is between 1s and 4s.

6. The method of operating a range hood according to claim 2 or 5, wherein, In S3, when the ambient temperature is in the first temperature range U1, adjusting the third opening current Ian and the third closing current Ibn of the smoke gathering structure and the third opening time Tan and the third closing time Tbn according to Ia0, Ib0, Ta0 and Tb0 to make the smoke gathering structure open to the right position and close to the right position, specifically comprising the following steps: S311: the range hood starts and the current ambient temperature is in the first temperature range U1; S312: judging whether the range hood is used for the first time, if yes, entering S314, if not, entering S313; S313: calling out Ian, Ibn, Tan and Tbn in the storage, and setting Ian as Ia0, Ibn as Ib0, Tan as Ta0 and Tbn as Tb0; S314: controlling the system to run the smoke gathering plate structure according to the Ia0, Ib0, Ta0 and Tb0 instructions; S315: judging whether the smoke gathering structure is opened to the right position and closed to the right position, if yes, entering S316, if not, entering S317; S316: recording Ia0 as Ian, Ib0 as Ibn, Ta0 as Tan and Tb0 as Tbn, and storing Ian, Ibn, Tan and Tbn in the storage, and the smoke gathering plate structure runs according to Ian, Ibn, Tan and Tbn this time; S317: increasing Ia0, Ib0, Ta0 and Tb0 by Y3, and then entering S318; S318: judging whether Ia0 ≥ Imax, Ib0 ≥ Imax, Ta0 ≥ Tmax1 and Tb0 ≥ Tmax2, if yes, issuing a fault alarm, if not, entering S319; S319: judging whether the smoke gathering structure is opened to the position or closed to the position, if yes, entering S316, if no, entering S317; Wherein, Tmax1 is the maximum preset opening time of the smoke gathering structure in the first temperature range U1, Tmax2 is the maximum preset closing time of the smoke gathering structure in the first temperature range U1, 5%≤Y3≤30%.

7. The method of operating a range hood according to claim 6, wherein, Tmax1 is twice of the first initial opening time Ta0 in S2, Tmax2 is twice of the first initial closing time Tb0 in S2.

8. The method of operating a range hood according to claim 2 or 5, wherein, 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 gathering structure according to Ic0, Id0, Tc0 and Td0 specifically includes the following steps: S321: the range hood is started and the current ambient temperature is in the first temperature range U1; S322: judging whether the range hood is used for the first time, if yes, entering S324, if no, entering S323; S323: calling out Icn, Idn, Tcn and Tdn in the storage and setting Icn as Ic0, Idn as Id0, Tcn as Tc0 and Tdn as Td0; S324: controlling the system to run according to the Ic0, Id0, Tc0 and Td0 instructions; S325: judging whether the smoke gathering structure is opened to the position or closed to the position, if yes, entering S326, if no, entering S327; S326: recording Ic0 as Icn, Id0 as Idn, Tc0 as Tcn and Td0 as Tdn and storing Icn, Idn, Tcn and Tdn in the storage, and the smoke gathering structure runs according to Icn, Idn, Tcn and Tdn this time; S327: increasing Y4 to Ic0, Id0, Tc0 and Td0, and then entering S328; S328: judging whether Ic0≥Imax, Id0≥Imax, Tc0≥Tmax3 and Td0≥Tmax4, if yes, issuing a fault alarm, if no, entering S329; S329: judging whether the smoke gathering structure is opened to the position or closed to the position, if yes, entering S326, if no, entering S327; Wherein, Tmax3 is the maximum preset opening time of the smoke gathering structure, Tmax4 is the maximum preset closing time of the smoke gathering structure, 5%≤Y4≤30%.

9. The method of operating a range hood according to claim 8, wherein, Tmax3 is twice of the second initial opening time Tc0 in S2, Tmax4 is twice of the second initial closing time Td0 in S2.

10. The method of operating a range hood according to claim 2 or 5, wherein, In S3, when the ambient temperature is in the third temperature range U3, adjusting the fifth opening current Ien, the fifth closing current Ifn, the fifth opening time Ten and the fifth closing time Tfn of the smoke gathering structure according to Ie0, If0, Te0 and Tf0 specifically includes the following steps: S331: the range hood is started and the current ambient temperature is in the third temperature range U3; S332: judging whether the range hood is used for the first time, if yes, entering S334, if no, entering S333; S333: calling Ien, Ifn, Ten, Tfn in the storage and setting Ien as Ie0, Ifn as If0, Ten as Te0, Tfn as Tf0; S334: controlling the system to operate the smoke collecting structure according to the Ie0, If0, Te0, Tf0 instructions; S335: judging whether the smoke collecting structure is opened to the position or closed to the position, if yes, entering S336, if no, entering S337; S336: recording Ie0 as Ien, If0 as Ifn, Te0 as Ten, Tf0 as Tfn, and storing Ien, Ifn, Ten, Tfn in the storage, and the smoke collecting structure operates according to Ien, Ifn, Ten, Tfn this time; S337: increasing Y5 to Ie0, If0, Te0, Tf0, and then entering S338; S338: judging whether Ie0≥Imax, If0≥Imax, Te0≥Tmax5, Tf0≥Tmax6, if yes, issuing a fault alarm, if no, entering S339; S339: judging whether the smoke collecting structure is opened to the position or closed to the position, if yes, entering S336, if no, entering 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, 5%≤Y5≤30%.

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

12. The method of operating a range hood according to claim 2 or 5, wherein, The first temperature range U1 is 15-50℃, the second temperature range U2 is 0-15℃, and the third temperature range U3 is -30-0℃.

13. A range hood characterized by, The range hood comprises a machine shell and a smoke collecting structure, the machine shell comprises a smoke collecting cover (2), the smoke collecting structure comprises a driving structure (4) and a smoke collecting plate (3) in transmission connection with the driving structure (4), the driving structure (4) is installed on the smoke collecting cover (2), the smoke collecting plate (3) is installed at a smoke inlet of the smoke collecting cover (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 by the operating method of the range hood in any one of claims 1-12.

14. The hood according to claim 13, characterized in that, Further comprising: a control unit (5) installed on the machine shell and in communication connection with the driving structure (4); a temperature sensor (6) installed on the smoke collecting structure or the machine shell and 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) and used for detecting whether the smoke collecting plate (3) is closed to the position; an open position sensor (72) installed on the driving structure (4) and in communication connection with the control unit (5) and used for detecting whether the smoke collecting plate (3) is opened to the position.

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