CN-122014646-A - Centrifugal fan, oil fume treatment device, integrated stove and control method of centrifugal fan

CN122014646ACN 122014646 ACN122014646 ACN 122014646ACN-122014646-A

Abstract

The embodiment of the application provides a centrifugal fan, an oil fume treatment device, an integrated stove and a control method of the centrifugal fan, and relates to the technical field of cooking equipment. The centrifugal fan comprises a volute body, an elastic structure and a driving mechanism, wherein the volute body is provided with a volute inlet and a volute outlet, an airflow channel is formed between the volute inlet and the volute outlet, the elastic structure is connected with the volute body, and the driving mechanism is connected with the elastic structure. External force is applied to the elastic structure through the driving mechanism, the deformation state of the elastic structure is changed, so that the airflow channel is adjusted, under the fixed gear of the centrifugal fan, when the environmental windage changes or the smoke discharge air volume demand changes, the air volume at the outlet of the volute of the centrifugal fan can be adjusted through the adjustment of the airflow channel, and then the working condition suitability of the whole machine can be improved, so that the integrated kitchen range can take into account various use working conditions.

Inventors

ZHANG XUAN
WU LEI
GAO FENG
REN FUJIA

Assignees

杭州老板电器股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260209

Claims (13)

1. A centrifugal fan, comprising: The spiral case body (10), the spiral case body (10) is provided with a spiral case inlet (101) and a spiral case outlet (102), and an airflow channel is formed between the spiral case inlet (101) and the spiral case outlet (102); An elastic structure (20), the elastic structure (20) being connected with the volute body (10); -a driving mechanism (30), the driving mechanism (30) being connected to the elastic structure (20), the driving mechanism (30) being configured to apply an external force to the elastic structure (20) to change a deformation state of the elastic structure (20) to adjust the air flow channel.
2. The centrifugal fan according to claim 1, further comprising an impeller (40), the impeller (40) being provided in the volute body (10), the elastic structure (20) being provided on a surface of at least one side of the volute body (10) in a thickness direction of the centrifugal fan, the elastic structure (20) being provided outside the impeller (40) in a radial direction of the impeller (40).
3. Centrifugal fan according to claim 2, wherein the elastic structure (20) is arranged along a complete circle of the impeller (40) in the circumferential direction.
4. The centrifugal fan according to claim 1, wherein the elastic structure (20) comprises a first elastic member (201), the volute body (10) has a first surface (103) in a thickness direction of the centrifugal fan, the first surface (103) is provided with a first mounting opening (1031), the first elastic member (201) is adhesively connected with the first surface (103), the first elastic member (201) covers the first mounting opening (1031), and/or, The elastic structure (20) comprises a second elastic piece (202), the volute body (10) is provided with a second surface (104) which is opposite to the first surface (103) in the thickness direction of the centrifugal fan, the second surface (104) is provided with a second mounting opening (1041), the second elastic piece (202) is in adhesive connection with the second surface (104), and the second elastic piece (202) covers the second mounting opening (1041).
5. Centrifugal fan according to any one of claims 1-4, wherein the drive mechanism (30) comprises a drive assembly mounted on the volute body (10) and a lifting member (34), the drive assembly being connected to the lifting member (34), the lifting member (34) being arranged at a side of the resilient structure (20) facing away from the interior of the volute body (10) in the thickness direction of the centrifugal fan.
6. The centrifugal fan according to claim 5, wherein the drive assembly comprises a base (31), a drive motor (32) and a screw (33), the base (31) is mounted on the volute body (10), the drive motor (32) is mounted on the base (31), and the screw (33) connects the drive motor (32) and the lifter (34).
7. The centrifugal fan according to any one of claims 1-4, wherein an air volume sensor (50) is arranged at the volute outlet (102), and the air volume sensor (50) is used for collecting air volume at the volute outlet (102) of the volute body (10).
8. A fume treatment device comprising a centrifugal fan according to any one of claims 1 to 7.
9. An integrated range comprising the fume treatment device of claim 8.
10. A control method of a centrifugal fan, comprising: and responding to the starting instruction, controlling a driving mechanism (30) of the centrifugal fan to apply external force to an elastic structure (20) of the centrifugal fan so as to change the deformation state of the elastic structure (20) and adjust the airflow channel of the centrifugal fan.
11. The control method of a centrifugal fan according to claim 10, wherein the drive mechanism (30) comprises a drive assembly and a lifter (34); The response start-up instruction controls a driving mechanism (30) of a centrifugal fan to apply an external force to an elastic structure (20) of the centrifugal fan so as to change the deformation state of the elastic structure (20) to adjust the airflow channel, and the response start-up instruction comprises: Responding to a starting instruction to acquire initial air quantity; acquiring a movement range of the lifting member (34); Controlling the lifting piece (34) to move to each preset position of the moving range so as to apply external force to the elastic structure (20) to change the deformation state of the elastic structure (20) into each deformation state and obtain the air quantity of each first deformation state corresponding to each deformation state; Determining the maximum air volume from the initial air volume and the air volume of each first deformation state, and determining the state of the elastic structure (20) corresponding to the maximum air volume as a first target state; determining the position to which the lifting piece (34) corresponding to the first target deformation state moves as a first target position; and controlling the lifting piece (34) to move to the first target position so as to apply external force to the elastic structure (20) of the centrifugal fan to change the deformation state of the elastic structure (20) so as to adjust the airflow channel.
12. The control method of a centrifugal fan according to claim 10, wherein the drive mechanism (30) comprises a drive assembly and a lifter (34); The response start-up instruction controls a driving mechanism (30) of a centrifugal fan to apply an external force to an elastic structure (20) of the centrifugal fan so as to change the deformation state of the elastic structure (20) to adjust the airflow channel, and the response start-up instruction comprises: responding to a starting instruction, and acquiring an air quantity set value input by a user and an initial air quantity; judging whether the air quantity set value is equal to the initial air quantity or not; if the air quantity set value is not equal to the initial air quantity, acquiring the moving range of the lifting piece (34); Controlling the lifting piece (34) to move to each preset position of the moving range so as to apply external force to the elastic structure (20) to change the deformation state of the elastic structure (20) into each deformation state and obtain the air quantity of each second deformation state corresponding to each deformation state; Determining the air volume with the smallest absolute value of the difference value with the air volume set value from the initial air volume and the air volume in each second deformation state; Determining an air volume with the smallest absolute value of the difference value from the air volume set value as a third air volume, and determining a state of the elastic structure (20) corresponding to the third air volume as a second target state; Determining a position to which the lifting piece (34) corresponding to the second target state moves as a second target position; And controlling the lifting piece (34) to move to the second target position so as to apply external force to the elastic structure (20) of the centrifugal fan to change the deformation state of the elastic structure (20) so as to adjust the airflow channel.
13. The method of claim 12, wherein the determining whether the air volume set value is equal to the initial air volume further comprises: And if the air quantity set value is equal to the initial air quantity, controlling a driving mechanism (30) of the centrifugal fan to keep the current position.

Description

Centrifugal fan, oil fume treatment device, integrated stove and control method of centrifugal fan Technical Field The application relates to the technical field of cooking equipment, in particular to a centrifugal fan, an oil fume treatment device, an integrated kitchen and a control method of the centrifugal fan. Background The integrated kitchen range is a kitchen appliance integrating multiple functions, such as combination of functions of 'smoke + kitchen range + storage', 'smoke + kitchen range + elimination', 'smoke + kitchen range + steaming/baking'. In the related art, the integrated cooker includes a fume treatment device, and the fume treatment device performs fume suction operation through a centrifugal fan. The inlet area of the volute of the centrifugal fan is provided with a fixed protruding structure so as to prevent the air flow from flowing back. However, under the fixed gear of the centrifugal fan, when the environmental windage changes or the exhaust air volume demand changes, the air volume at the outlet of the volute of the centrifugal fan cannot be adjusted, so that the working condition suitability of the whole machine is poor. Disclosure of Invention The embodiment of the application provides a centrifugal fan, an oil fume treatment device, an integrated stove and a control method of the centrifugal fan, which are used for solving the problem that under the fixed gear of the centrifugal fan, when the environmental windage changes or the smoke discharge air volume demand changes, the air volume at the outlet of a volute of the centrifugal fan cannot be adjusted, so that the working condition suitability of the whole machine is poor. In a first aspect, an embodiment of the present application provides a centrifugal fan, including: The spiral case body is provided with a spiral case inlet and a spiral case outlet, and an airflow channel is formed between the spiral case inlet and the spiral case outlet; The elastic structure is connected with the volute body; the driving mechanism is connected with the elastic structure and is configured to apply external force to the elastic structure so as to change the deformation state of the elastic structure and adjust the airflow channel. In one possible embodiment, the centrifugal fan further comprises an impeller, the impeller is arranged in the volute body, the elastic structure is arranged on the surface of at least one side of the volute body in the thickness direction of the centrifugal fan, and the elastic structure is arranged on the outer side of the impeller in the radial direction of the impeller. In one possible embodiment, the elastic structure is arranged along the circumferential direction of the impeller in a complete circle. In one possible embodiment, the elastic structure comprises a first elastic member, the volute body is provided with a first surface in the thickness direction of the centrifugal fan, the first surface is provided with a first mounting opening, the first elastic member is in adhesive connection with the first surface, the first elastic member covers the first mounting opening, and/or, The elastic structure comprises a second elastic piece, the volute body is provided with a second surface opposite to the first surface in the thickness direction of the centrifugal fan, the second surface is provided with a second mounting opening, the second elastic piece is connected with the second surface in an adhesive mode, and the second elastic piece covers the second mounting opening. In one possible embodiment, the driving mechanism comprises a driving assembly and a lifting member, the driving assembly is mounted on the volute body, the driving assembly is connected with the lifting member, and the lifting member is arranged on one side, facing away from the inside of the volute body, of the elastic structure in the thickness direction of the centrifugal fan. In one possible embodiment, the driving assembly includes a base mounted on the volute body, a driving motor mounted on the base, and a screw rod connecting the driving motor and the lifter. In one possible implementation manner, an air volume sensor is arranged at the outlet of the volute, and the air volume sensor is used for collecting air volume at the outlet of the volute body. In a second aspect, an embodiment of the present application provides a lampblack treatment device, including the centrifugal fan in the first aspect. In a third aspect, an embodiment of the present application provides an integrated stove, including the oil fume treatment device according to the second aspect. In a fourth aspect, an embodiment of the present application provides a control method for a centrifugal fan, including: and responding to the starting instruction, controlling a driving mechanism of the centrifugal fan to apply external force to the elastic structure of the centrifugal fan so as to change the deformation state of the elastic structure and adjust the airflow