Operation method of push rod mechanism of extractor hood, push rod mechanism and extractor hood

Abstract

The invention discloses an operation method of a push rod mechanism of a range hood, the push rod mechanism and the range hood. The operation method of the push rod mechanism of the range hood comprises the following steps: S1, according to the configuration of the range hood before leaving a factory, through experimental detection, deducing to obtain a current threshold formula Imax = [s * m + q * n] * I < initial > of the push rod mechanism before leaving the factory, so as to obtain a current threshold; s2, when the extractor hood leaves the factory is started, the maximum current value I < new > of the push rod mechanism in the operation process is obtained; s3, substituting the new I instead of the initial I into a current threshold formula Imax = [s * m + q * n] * initial I to obtain a new current threshold Imax new; s4, the push rod mechanism newly operates at Imax until the end; s1 comprises the following steps: S11, starting the range hood; and S12, the maximum current value I < initial > in the motion process of the push rod mechanism in the no-load state is detected.

Description

Technical Field

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

[0002] Current side-supply range hoods with flaps have a flap panel rigidly connected to a push rod mechanism via a connecting rod mechanism. The control panel controls the extension and retraction of the push rod mechanism to push the range hood flap, thereby opening and closing the range hood's smoke inlet. During the movement of the flap, the current of the push rod mechanism is constantly changing. When the current of the push rod mechanism reaches the program's preset threshold, the controller deems that the push rod mechanism has reached the preset position. Therefore, the current threshold of the push rod mechanism is a key parameter. When the threshold is set too small, the push rod mechanism may not be able to push the flap to correctly close and open the smoke inlet. When the threshold is set too large, the long-term high current will cause the push rod mechanism to exert excessive force, affecting the service life of the mechanism. During the use of the range hood, oil stains will continue to adhere to the flap and / or push rod mechanism, resulting in the preset current threshold of the push rod mechanism not being able to adapt to the actual situation, making it impossible for the flap to correctly open and close the smoke inlet.

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

[0004] The present invention aims to at least partially address one of the problems existing in the prior art. To this end, the present invention provides a method for operating a push rod mechanism of a range hood. By placing a weight on the push rod mechanism of the range hood before it leaves the factory, a current threshold formula for the push rod mechanism of the range hood before leaving the factory is obtained. This allows the new current threshold I to be calculated based on the current threshold formula when oil stains adhere to the flap and / or push rod mechanism during normal use of the range hood after leaving the factory. max新 , to ensure that the flap of the range hood can close and open the smoke inlet with reasonable power, and at the same time avoid excessive force on the push rod mechanism, which will affect the service life of the push rod mechanism.

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

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

[0007] S1: Based on the configuration of the range hood before leaving the factory, through experimental testing, the current threshold formula I of the push rod mechanism before leaving the factory is inferred max =[s×m+q×n]×I 初 , to obtain the current threshold;

[0008] S2: When the range hood is started after leaving the factory, the maximum current value I of the push rod mechanism during operation is obtained. 新 ;

[0009] S3: I 新 Replace I 初 Substitute the current threshold formula I max =[s×m+q×n]×I 初 , to obtain the new current threshold I max新 ;

[0010] S4: The push rod mechanism is max新 Run to the end;

[0011] S1 includes the following steps:

[0012] S11: Start the range hood;

[0013] S12: Detecting the maximum current value I during the movement of the push rod mechanism when it is unloaded 初 ;

[0014] S13: adding a weight to the push rod mechanism;

[0015] S14: Detecting the maximum current value I during the movement of the push rod mechanism 检 ;

[0016] S15: Calculation I 检 with I 初 The ratio m=I 检 / I 初 ;

[0017] Where s and q are coefficients and s + q = 1, n is the maximum current threshold value of the push rod mechanism configured before leaving the factory compared to the maximum current value I 初 multiples of .

[0018] Optionally, the S2 includes the following steps:

[0019] S21: Start the range hood;

[0020] S22: Determine whether the push rod mechanism is operating. If so, proceed to S23; if not, repeat S22;

[0021] S23: Detecting the maximum current value I during the movement of the push rod mechanism 新 ;

[0022] S24: Determine whether I 新 >u×I 初 If yes, go to S3, if no, repeat S24;

[0023] Where u is a coefficient and 1≤u≤10.

[0024] Optionally, S23 includes the following steps:

[0025] S231: Detecting and acquiring the current of the push rod mechanism during the movement process at intervals of a first preset time t1 to obtain a current value group I01, I11, I21, ..., In1;

[0026] S232: Determine the maximum value in the current value group I01, I11, I21, ..., In1 as the maximum current value I 新 .

[0027] Optionally, the first preset time t1 has a value of 20ms-60ms.

[0028] Optionally, S12 includes the following steps:

[0029] S121: Detecting and acquiring the current of the push rod mechanism during the movement process at intervals of a second preset time t2 to obtain a current value group I02, I12, I22, ..., In2;

[0030] S122: Determine the maximum value in the current value group I02, I12, I22, ... In2 as the maximum current value I 初 .

[0031] Optionally, the second preset time t2 has a value of 20ms-60ms.

[0032] Optionally, S14 includes the following steps:

[0033] S141: Detecting and acquiring the current of the push rod mechanism during the movement process at intervals of a third preset time t3 to obtain a current value group I03, I13, I23, ..., In3;

[0034] S142: Determine the maximum value in the current value group I03, I13, I23, ... In3 as the maximum current value I1.

[0035] Optionally, the third preset time t3 has a value of 20ms-60ms.

[0036] Another aspect of the present invention provides a push rod mechanism, which operates according to the operating method of the push rod mechanism of the range hood described above.

[0037] On the other hand, the present invention provides a range hood, including a smoke collection hood, a flap and the above-mentioned push rod mechanism, wherein a smoke inlet is opened on the smoke collection hood, the push rod mechanism is transmission-connected to the flap, and the push rod mechanism can push the flap to open or close the smoke inlet.

[0038] Compared with the prior art, the present invention has at least the following beneficial effects:

[0039] The present invention provides an operating method for a range hood push rod mechanism. A weight is placed on the push rod mechanism of the range hood before the range hood leaves the factory, thereby obtaining a current threshold formula for the push rod mechanism of the range hood before leaving the factory. This allows the range hood to calculate a new current threshold I according to the current threshold formula when oil stains adhere to the flap and / or the push rod mechanism during normal use of the range hood after leaving the factory. max新 , to ensure that the flap of the range hood can close and open the smoke inlet with reasonable power, and at the same time avoid excessive force on the push rod mechanism, which will affect the service life of the push rod mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is one of the step diagrams of the operating method of the push rod mechanism of the range hood provided by a specific embodiment of the present invention;

[0041] Figure 2 This is the second step diagram of the operating method of the push rod mechanism of the range hood provided by the specific embodiment of the present invention. DETAILED DESCRIPTION

[0042] 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 replacements of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed in the present invention.

[0043] Please refer to Figure 1 and Figure 2 The present invention provides an operating method of a push rod mechanism of a range hood, comprising the following steps:

[0044] S1: Based on the range hood configuration before leaving the factory, through experimental testing, the current threshold formula I of the push rod mechanism before leaving the factory is inferred max =[s×m+q×n]×I 初 , to obtain the current threshold;

[0045] S2: When the range hood is started after leaving the factory, obtain the maximum current value I of the push rod mechanism during operation 新 ;

[0046] S3: I 新 Replace I 初 Substitute the current threshold formula I max =[s×m+q×n]×I 初 , to obtain the new current threshold I max新 ;

[0047] S4: Push rod mechanism with Imax新 The operation is completed, thereby changing the current threshold Imax of the push rod mechanism according to the weight change of the range hood flap during operation, so that the push rod mechanism can close and open the smoke inlet of the range hood with sufficient power.

[0048] Please refer to Figure 1 , S1 includes the following steps:

[0049] S11: Start the range hood;

[0050] S12: Detect the maximum current value I during the movement of the push rod mechanism when it is unloaded 初 ;

[0051] S13: Add weight to the push rod mechanism;

[0052] S14: Detect the maximum current value I during the movement of the push rod mechanism 检 ;

[0053] S15: Calculation I 检 with I 初 The ratio m=I 检 / I 初 ;

[0054] Where s and q are coefficients and s + q = 1, n is the maximum current threshold value of the push rod mechanism configured before leaving the factory compared to the maximum current value I 初 That is, in order to ensure that the push rod mechanism can push the flap to close and open the smoke inlet with sufficient power, the maximum current value I obtained by actual detection is preset. 初 The larger current is used as the current threshold I max .

[0055] The present invention provides an operating method for a range hood push rod mechanism. A weight is placed on the push rod mechanism of the range hood before the range hood leaves the factory, thereby obtaining a current threshold formula for the push rod mechanism of the range hood before leaving the factory. This allows the range hood to calculate a new current threshold I according to the current threshold formula when oil stains adhere to the flap and / or the push rod mechanism during normal use of the range hood after leaving the factory. max新 , to ensure that the flap of the range hood can close and open the smoke inlet with reasonable power, and at the same time avoid excessive force on the push rod mechanism, which will affect the service life of the push rod mechanism.

[0056] Please refer to Figure 2 Optionally, S2 includes the following steps:

[0057] S21: Start the range hood;

[0058] S22: Determine whether the push rod mechanism is running. If so, proceed to S23. If not, repeat S22.

[0059] S23: Detect the maximum current value I during the movement of the push rod mechanism 新 ;

[0060] S24: Determine whether I 新 >u×I 初 If so, it means that the weight of the oil added to the flap has reached the preset weight, and the current threshold I needs to be updated. max新 , then enter S3, if not, then repeat S24;

[0061] Where u is a coefficient and 1≤u≤10.

[0062] Optionally, in this embodiment, u is 5.

[0063] Optionally, S23 includes the following steps:

[0064] S231: Detecting and acquiring the current of the push rod mechanism during the movement process at intervals of a first preset time t1 to obtain a current value group I01, I11, I21, ..., In1;

[0065] S232: Determine the maximum value in the current value group I01, I11, I21, ... In1 as the maximum current value Inew.

[0066] Optionally, the first preset time t1 is set to 20ms-60ms to obtain a more accurate maximum current value I 新 .

[0067] Optionally, S12 includes the following steps:

[0068] S121: Detecting and acquiring the current of the push rod mechanism during the movement process at intervals of a second preset time t2 to obtain a current value group I02, I12, I22, ..., In2;

[0069] S122: Determine the maximum value in the current value group I02, I12, I22, ..., In2 as the maximum current value I12.

[0070] Optionally, the second preset time t2 is set to 20ms-60ms to obtain a more accurate maximum current value I 初 .

[0071] Optionally, the operating method of the push rod mechanism of the range hood according to any one of claims 1 to 4 is characterized in that S14 comprises the following steps:

[0072] S141: Detecting and acquiring the current of the push rod mechanism during the movement process at intervals of a third preset time t2 to obtain a current value group I03, I13, I23, ..., In3;

[0073] S142: Determine the maximum value in the current value group I03, I13, I23, ... In3 as the maximum current value I1.

[0074] Optionally, the second preset time t3 is set to a value of 20ms-60ms to obtain a more accurate maximum current value I1.

[0075] Optionally, in this embodiment, t1, t2, and t3 are all 50 ms.

[0076] Another aspect of the present invention provides a push rod mechanism, which operates according to the operating method of the push rod mechanism of the range hood described above.

[0077] On the other hand, the present invention provides a range hood, including a smoke collection hood, a flap and the above-mentioned push rod mechanism. A smoke inlet is opened on the smoke collection hood, and the push rod mechanism is transmission-connected to the flap. The push rod mechanism can push the flap to open or close the smoke inlet.

[0078] 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 inventive concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A method for operating a push rod mechanism of a range hood, characterized in that: The following steps are involved: S1: Based on the configuration of the range hood before leaving the factory, the current threshold formula I of the push rod mechanism is inferred through experimental testing. max =[s×m+q×n]×I 初 , to obtain the current threshold; S2: When the range hood is started after leaving the factory, the maximum current value I of the push rod mechanism during operation is obtained 新 ; S3: I 新 Replace I 初 Substitute the current threshold formula I max =[s×m+q×n]×I 初 , to obtain the new current threshold I max新 ; S4: The push rod mechanism is max新 Run to completion; S1 includes the following steps: S11: Start the range hood; S12: Detecting the maximum current value I during the movement of the push rod mechanism when it is unloaded 初 ; S13: adding a weight to the push rod mechanism; S14: Detecting the maximum current value I during the movement of the push rod mechanism 检 ; S15: Calculation I 检 with I 初 The ratio m = I 检 / I 初 ; Where s and q are coefficients and s+q=1, n is the maximum current threshold value of the push rod mechanism configured before leaving the factory compared to the maximum current value I 初 multiples of.

2. The operating method of the push rod mechanism of the range hood according to claim 1, characterized in that: The S2 comprises the following steps: S21: start the range hood; S22: Determine whether the push rod mechanism is running, if so, enter S23, if not, repeat S22; S23: Detecting the maximum current value I during the movement of the push rod mechanism 新 ; S24: Determine whether I 新 >u×I 初 , if yes, then go to S3, if no, then repeat S24; Here, u is a coefficient and 1≤u≤10.

3. The operating method of the push rod mechanism of the range hood according to claim 2, characterized in that: S23 includes the following steps: S231: Detect and obtain the current of the push rod mechanism during the movement at intervals of a first preset time t1 to obtain a current value group I01, I11, I21, ... In1; S232: Determine the maximum value in the current value groups I01, I11, I21, ... In1 as the maximum current value I 新 .

4. The operating method of the push rod mechanism of the range hood according to claim 3, characterized in that: The first preset time t1 has a value of 20ms-60ms.

5. The operating method of the push rod mechanism of the range hood according to any one of claims 1 to 4, characterized in that: S12 includes the following steps: S121: Detecting and acquiring the current of the push rod mechanism during the movement process at every second preset time interval t2 to obtain a current value group I02, I12, I22, ... In2; S122: Determine the maximum value in the current value groups I02, I12, I22, ... In2 as the maximum current value I 初 .

6. The operating method of the push rod mechanism of the range hood according to claim 5, characterized in that: The second preset time t2 has a value of 20ms-60ms.

7. The operating method of the push rod mechanism of the range hood according to any one of claims 1 to 4, characterized in that: S14 includes the following steps: S141: Detect and obtain the current of the push rod mechanism during the movement at intervals of a third preset time t3 to obtain a current value group I03, I13, I23, ... In3; S142: Determine the maximum value in the current value group I03, I13, I23, ... In3 as the maximum current value I 检 .

8. The operating method of the push rod mechanism of the range hood according to claim 7, characterized in that: The third preset time t3 has a value of 20ms-60ms.

9. A push rod mechanism, characterized in that: The push rod mechanism operates according to the operating method of the push rod mechanism of the range hood according to any one of claims 1 to 8.

10. A range hood, characterized in that: It comprises a smoke collecting hood, a flap and the push rod mechanism as claimed in claim 9, wherein a smoke inlet is provided on the smoke collecting hood, the push rod mechanism is transmission-connected with the flap, and the push rod mechanism can push the flap to open or close the smoke inlet.

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