CN108006734B - Range hood with variable oil screen gap and control method thereof - Google Patents
Range hood with variable oil screen gap and control method thereof Download PDFInfo
- Publication number
- CN108006734B CN108006734B CN201710423849.3A CN201710423849A CN108006734B CN 108006734 B CN108006734 B CN 108006734B CN 201710423849 A CN201710423849 A CN 201710423849A CN 108006734 B CN108006734 B CN 108006734B
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- Prior art keywords
- filter screen
- oil
- oil filter
- screen
- range hood
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2035—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The utility model provides a range hood with changeable oil screen gap, includes fan motor, collection petticoat pipe, outer oil filter screen and inlayer oil filter screen can relative movement and change oil screen gap, its characterized in that: the outer oil filter screen is a fixed oil filter screen, the inner oil filter screen is a movable oil filter screen, and a driving motor for driving the inner oil filter screen to move up and down is arranged at the bottom of the outer oil filter screen. The utility model has the advantages that: the range hood with the variable oil screen gap can drive the inner oil screen to move up and down through the driving motor at the bottom of the outer oil screen, the driving structure is very simple, and after the numerical value of the sensor is read and judged through the main controller, the linkage change and automatic control of the fan gear and the oil screen gap can be realized, so that the intelligent balance noise and the air quantity are effectively ensured under the condition of some air quantity, the range hood can be well suitable for users under different working conditions, and the user experience is greatly improved.
Description
Technical Field
The utility model relates to a range hood, in particular to a range hood with a variable oil net gap and a control method thereof.
Background
Currently, a range hood with a double-layer oil filter screen structure is disclosed in the prior art, wherein the distance between most two oil filter screens cannot be adjusted. The oil filter for the range hood and the range hood disclosed in Chinese patent publication No. 201020541690.9 (issued publication No. CN 201836954U) have a double-layer structure, and comprise an outer layer pore plate filter screen and a screen fixed on the inner side of the pore plate filter screen, wherein the screen is provided with a plurality of meshes, the pore plate filter screen is provided with a plurality of air inlet holes, and the area of all the air inlet holes of the pore plate filter screen accounts for 50-56% of the total area of the pore plate filter screen. Although, this filter equipment can guarantee oil smoke and oil filter equipment abundant contact, and the biggest possible oil smoke separation that makes can guarantee certain air inlet area again, amount of wind and wind pressure loss are little, and range hood that adopts this filter equipment has great enough suction, but, the interval between this filter equipment's orifice plate filter screen and the silk screen can not be adjusted, and the air inlet area can not carry out self-adaptation adjustment along with range hood's operating mode change promptly, and intelligent degree is lower.
For the range hood with the double-layer oil filter screen, the noise and the air quantity need to be balanced, the space between the double-layer oil filters is small, the system resistance is relatively large, the air quantity is small, and the noise is also small, but for certain environments with higher outlet back pressure, the system resistance needs to be reduced, and the gap is increased, so that the oil smoke can be effectively sucked. Although the prior art also discloses range hoods with changeable oil net gaps, the range hoods do not consider how to intelligently balance noise and air quantity when the oil net gaps are adjusted, and the gear of the main fan and the oil net gaps cannot be changed in a linkage manner, so that the range hoods cannot be well suitable for users under different working conditions, and the user experience is poor.
Disclosure of Invention
The first technical problem to be solved by the utility model is to provide the range hood with a simple oil net gap adjusting structure and a variable oil net gap aiming at the prior art.
The second technical problem to be solved by the utility model is to provide the range hood with the variable oil screen gap, wherein the gear of the fan motor and the oil screen gap can be linked.
Aiming at the third technical problem to be solved by the utility model, the utility model provides a control method of the range hood with variable oil screen gap, which can intelligently balance noise and air quantity.
The technical scheme adopted by the utility model for solving the first technical problem is as follows: the range hood with the changeable oil screen gap comprises a fan motor, a fume collecting hood, an outer oil screen and an inner oil screen, wherein the outer oil screen and the inner oil screen can relatively move to change the oil screen gap, and the range hood is characterized in that: the outer oil filter screen is a fixed oil filter screen, the inner oil filter screen is a movable oil filter screen, and a driving motor for driving the inner oil filter screen to move up and down is arranged at the bottom of the outer oil filter screen.
Preferably, the oil filter further comprises a lifting rod which is driven by the driving motor to do lifting motion, the lifting rod upwards passes through the bottom of the outer oil filter screen, and the upper end of the lifting rod is connected to the inner oil filter screen.
Further preferably, the output shaft of the driving motor is horizontally arranged, a cam is mounted on the output shaft, the lifting rod is vertically arranged, and the lower end of the lifting rod is mounted on the cam.
Further preferably, an oil cup is installed at the center of the bottom of the outer oil filter screen, and the driving motor and the cam are hidden inside the oil cup.
In order to enable the inner oil filter screen to move more stably, the outer oil filter screen is fixed on the smoke collecting cover, at least two guide posts are arranged at the bottom of the outer oil filter screen, the guide posts are vertically upwards arranged, corresponding guide holes are formed in the bottom of the inner oil filter screen, and the guide posts are inserted into the corresponding guide holes.
The utility model solves the second technical problem by adopting the technical proposal that: the range hood with the variable oil net gap further comprises a sensor and a main controller, wherein the sensor is used for detecting the flow rate of the fan or the outlet pressure of the fan, the signal output end of the sensor is electrically connected with the signal input end of the main controller, and the signal output end of the main controller is electrically connected with the fan motor and the driving motor. The main controller can correspondingly drive the fan motor and the driving motor according to the signal size of the received sensor, so that the gear of the fan motor and the gap between the oil nets generate linkage change, and the intelligent balance of noise and air quantity is realized.
Further preferably, the main controller is electrically connected with a user key module and a display module.
The technical scheme adopted by the utility model for solving the third technical problem is as follows: the control method of the range hood with the variable oil net gap is characterized by comprising the following steps of:
(1) starting a fan motor, and running the range hood with a default oil net gap and a fan motor gear;
(2) judging whether an adaptive signal is input or not,
if no adaptive signal is input, returning to the step (1);
if the self-adaptive signal is input, the main controller reads the sensor signal and acquires a sampling value M, and searches and stores a reference value F of the corresponding rotating speed;
(3) comparing the sampling value M with the reference value F and judging,
if M-F is more than 0 and less than a, the range hood works normally and returns to the step (2);
if M-F is less than 0, reducing the gear of the fan motor, driving the cam to rotate by the driving motor, reducing the oil net gap, and returning to the step (2);
if a is less than or equal to M-F, the gear of the fan motor is increased, and the cam is driven to rotate by the driving motor to increase the oil net gap;
(4) judging whether the gear of the fan motor and the gap between the oil nets break through a threshold value;
if the threshold is not broken, returning to the step (2);
if the threshold value is broken, an alarm is sent out, and the user is prompted to clean the oil filter screen.
Compared with the prior art, the utility model has the advantages that: the range hood with the variable oil screen gap can drive the inner oil screen to move up and down through the driving motor at the bottom of the outer oil screen, the driving structure is very simple, and after the numerical value of the sensor is read and judged through the main controller, the linkage change and automatic control of the fan gear and the oil screen gap can be realized, so that the intelligent balance noise and the air quantity are effectively ensured under the condition of some air quantity, the range hood can be well suitable for users under different working conditions, and the user experience is greatly improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a schematic view of an oil screen and cup assembly according to an embodiment of the present utility model;
FIG. 3 is an exploded perspective view of FIG. 2;
FIG. 4 is a partial cross-sectional view of an embodiment of the present utility model;
FIG. 5 is a partial cross-sectional view of an embodiment of the present utility model;
FIG. 6 is a functional block diagram of a control method according to an embodiment of the present utility model;
fig. 7 is a flowchart of a control method according to an embodiment of the present utility model.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 6, the range hood with a variable oil screen gap in the present embodiment includes a blower motor 1, a hood 2, an outer oil screen 3 and an inner oil screen 4, wherein the outer oil screen 3 is a fixed oil screen fixed on the hood 2, the inner oil screen 4 is a movable oil screen located above the outer oil screen 3, and the oil screen gap is changed by moving the inner oil screen 4 up and down. In order to enable the inner oil filter screen 4 to move only up and down, in this embodiment, at least three guide posts 31 are mounted at the bottom of the outer oil filter screen 3, the guide posts 31 are vertically disposed upward, corresponding guide holes 41 are formed at the bottom of the inner oil filter screen 4, and the guide posts 31 are inserted into the corresponding guide holes 41.
A driving motor 5 is installed at the bottom of the outer oil filter screen 3, and the driving motor 5 can be fixed by screws or rivets. The output shaft level of driving motor 5 sets up, installs cam 7 on the output shaft, and lifter 6 is vertical to be set up, and lifter 6 upwards passes the bottom of outer oil filter screen 3, and the upper end of lifter 6 is connected on inlayer oil filter screen 4, and the lower extreme of lifter 6 is installed on cam 7. When the driving motor 5 works, the cam 7 is driven to rotate, the lifting rod 6 moves up and down along with the rotation of the cam 7, and the lifting rod 6 drives the inner oil filter screen 4 to move up and down relative to the outer oil filter screen 3, so that the oil filter screen gap is accurately controlled, and the system resistance coefficient of the range hood is changed.
In this embodiment, an oil cup 8 is installed at the center of the bottom of the outer oil screen 3, and the driving motor 5 and the cam 7 are hidden inside the oil cup 8.
As shown in fig. 6, in order to enable the gear of the fan motor to be linked with the gap between the oil net, the range hood further comprises a sensor 9 and a main controller 10, wherein the sensor 9 can be a flow sensor or a pressure sensor, the sensor 9 is used for detecting the flow rate of the fan or the outlet pressure of the fan, the signal output end of the sensor 9 is electrically connected with the signal input end of the main controller 10, the signal output end of the main controller 10 is electrically connected with the fan motor 1 and the driving motor 5, the main controller 10 controls the fan motor 1 so as to adjust the fan system, and the main controller 10 controls the driving motor 5 so as to adjust the gap between the oil net and the oil net. Further, a user key module 11 and a display module 12 are electrically connected to the main controller 10. The gear of the fan motor 1 and the gap between the oil screens can be manually controlled through the user key module 11, and the display module 12 can display the working state of the range hood, and particularly can be used for reminding a user whether the oil screens need to be cleaned.
As shown in fig. 7, the control method of the range hood with the variable oil screen gap comprises the following steps:
(1) starting the fan motor 1, and running the range hood with a default oil net gap and a fan motor gear;
(2) judging whether an adaptive signal is input, wherein the adaptive signal can be signals such as outlet pressure, fan motor current, outlet flow speed and the like,
if no adaptive signal is input, returning to the step (1);
if the self-adaptive signal is input, the main controller 10 reads the signal of the sensor 9 and acquires a sampling value M, and searches and stores a reference value F of the corresponding rotating speed;
(3) comparing the sampling value M with the reference value F and judging,
if M-F is more than 0 and less than a, the range hood works normally and returns to the step (2), wherein a is a set critical value;
if M-F is less than 0, the gear of the fan motor 1 is reduced, the cam 7 is driven to rotate by the driving motor 5, the oil net gap is reduced, and then the step (2) is returned;
if a is less than or equal to M-F, the gear of the fan motor 1 is increased, and the cam 7 is driven to rotate by the driving motor 5, so that the oil screen gap is increased;
(4) judging whether the gear of the fan motor 1 and the oil net gap break through a threshold value or not;
if the threshold is not broken, returning to the step (2);
if the threshold value is broken, an alarm is sent out, a user is prompted to clean the oil filter screen, and the unblocked condition of the flue is checked.
The foregoing is merely illustrative of the preferred embodiments of this utility model, and it will be appreciated by those skilled in the art that variations and modifications of this utility model can be made without departing from the principles of the utility model, and these are considered to be within the scope of the utility model.
Claims (6)
1. The utility model provides a range hood with changeable oil screen gap, includes fan motor (1), collection petticoat pipe (2), outer oil filter screen (3) and inlayer oil filter screen (4) can relative movement and change oil screen gap, its characterized in that: the oil filter screen comprises an outer oil filter screen (3) and a main controller (10), wherein the outer oil filter screen (3) is a fixed oil filter screen, the inner oil filter screen (4) is a movable oil filter screen, the outer oil filter screen (3) is fixed on a fume collecting hood (2), a driving motor (5) for driving the inner oil filter screen (4) to move up and down is arranged at the bottom of the outer oil filter screen (3), the oil filter screen further comprises a sensor (9) and a main controller (10), the sensor (9) is used for detecting the flow rate or the outlet pressure of a fan, the signal output end of the sensor (9) is electrically connected with the signal input end of the main controller (10), the signal output end of the main controller is electrically connected with the fan motor (1) and the driving motor (5), and the control method of the fume exhauster comprises the following steps:
(1) starting a fan motor (1), and running the range hood with a default oil net gap and a fan motor gear;
(2) judging whether an adaptive signal is input, wherein the adaptive signal is an outlet pressure, a fan motor current and an outlet flow rate signal;
if no adaptive signal is input, returning to the step (1);
if the self-adaptive signal is input, the main controller (10) reads the signal of the sensor (9) and acquires a sampling value M, and searches and stores a reference value F of the corresponding rotating speed;
(3) comparing the sampling value M with the reference value F and judging,
if M-F is more than 0 and less than a, the range hood works normally and returns to the step (2);
if M-F is less than 0, the gear of the fan motor (1) is reduced, the cam (7) is driven to rotate by the driving motor (5) and the oil net gap is reduced, and then the step (2) is returned;
if a is less than or equal to M-F, the gear of the fan motor (1) is increased, and the cam (7) is driven to rotate by the driving motor (5) and the oil net gap is increased;
wherein a is a set critical value;
(4) judging whether the gear of the fan motor (1) and the oil net gap break through a threshold value;
if the threshold is not broken, returning to the step (2);
if the threshold value is broken, an alarm is sent out, and the user is prompted to clean the oil filter screen.
2. The range hood with variable oil screen gap according to claim 1, wherein: the oil filter screen also comprises a lifting rod (6) which moves up and down under the driving of the driving motor (5), wherein the lifting rod (6) upwards passes through the bottom of the outer oil filter screen (3), and the upper end of the lifting rod (6) is connected to the inner oil filter screen (4).
3. The range hood with variable oil screen gap according to claim 2, wherein: the output shaft of the driving motor (5) is horizontally arranged, a cam (7) is arranged on the output shaft, the lifting rod (6) is vertically arranged, and the lower end of the lifting rod (6) is arranged on the cam (7).
4. A range hood with variable oil screen gap according to claim 3, wherein: an oil cup (8) is arranged in the center of the bottom of the outer oil filter screen (3), and the driving motor (5) and the cam (7) are hidden in the oil cup (8).
5. The range hood with variable oil screen gap according to claim 1, wherein: the outer oil filter screen (3) is fixed on the fume collecting hood (2), at least two guide posts (31) are installed at the bottom of the outer oil filter screen (3), the guide posts (31) are vertically upwards arranged, corresponding guide holes (41) are formed in the bottom of the inner oil filter screen (4), and the guide posts (31) are inserted into the corresponding guide holes (41).
6. The range hood with variable oil screen gap according to claim 1, wherein: the main controller (10) is electrically connected with a user key module (11) and a display module (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710423849.3A CN108006734B (en) | 2017-06-07 | 2017-06-07 | Range hood with variable oil screen gap and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710423849.3A CN108006734B (en) | 2017-06-07 | 2017-06-07 | Range hood with variable oil screen gap and control method thereof |
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| Publication Number | Publication Date |
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| CN108006734A CN108006734A (en) | 2018-05-08 |
| CN108006734B true CN108006734B (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710423849.3A Active CN108006734B (en) | 2017-06-07 | 2017-06-07 | Range hood with variable oil screen gap and control method thereof |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611913B (en) * | 2018-11-27 | 2020-02-18 | 山东开齐厨业科技有限公司 | Combination device of range hood and induction cooker |
| CN109780607B (en) * | 2019-01-25 | 2020-11-06 | 佛山市顺德区美的洗涤电器制造有限公司 | Air inlet net assembly and range hood |
| CN110030596A (en) * | 2019-04-10 | 2019-07-19 | 佛山市顺德区美的洗涤电器制造有限公司 | Filter assemblies for range hood and the range hood with it |
| CN111878863B (en) * | 2020-06-24 | 2023-03-31 | 华帝股份有限公司 | Cooking fume exhauster |
| CN113639292B (en) * | 2021-08-31 | 2023-04-14 | 宁波方太厨具有限公司 | Range hood and control method thereof |
| CN113639294A (en) * | 2021-08-31 | 2021-11-12 | 宁波方太厨具有限公司 | Range hood and control method thereof |
| CN113719869A (en) * | 2021-08-31 | 2021-11-30 | 宁波方太厨具有限公司 | Range hood and control method thereof |
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| Publication number | Publication date |
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| CN108006734A (en) | 2018-05-08 |
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