CN112178722B - Control method of range hood - Google Patents
Control method of range hood Download PDFInfo
- Publication number
- CN112178722B CN112178722B CN202011061897.0A CN202011061897A CN112178722B CN 112178722 B CN112178722 B CN 112178722B CN 202011061897 A CN202011061897 A CN 202011061897A CN 112178722 B CN112178722 B CN 112178722B
- Authority
- CN
- China
- Prior art keywords
- range hood
- lubricating grease
- temperature
- control method
- ball screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
- F24C15/2078—Removing cooking fumes movable
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a motion mechanism, which comprises a driving mechanism, a screw nut mechanism and a transmission mechanism, wherein the transmission mechanism is used for transmitting the output of the driving mechanism to the screw nut mechanism, lubricating grease is arranged on the transmission mechanism and the screw nut mechanism, and the motion mechanism is characterized in that: the movement mechanism further comprises a temperature measuring probe for detecting the temperature characteristic change of the lubricating grease. Also discloses a range hood applying the movement mechanism and a control method of the range hood. Compared with the prior art, the invention has the advantages that: can detect the temperature probe of lubricating grease temperature through the setting to can reflect the characteristic change of lubricating grease through the temperature rise speed of lubricating grease, so that judge whether inefficacy of lubricating grease according to the characteristic change, and then still can remind the user whether need the maintenance to lubricating grease, thereby extension motion's life.
Description
Technical Field
The invention relates to a power system, in particular to a movement mechanism and a range hood applying the movement mechanism.
Background
The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The range hood works by utilizing the fluid dynamics principle, sucks and exhausts oil smoke through a centrifugal fan arranged in the range hood, and filters partial grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated in the center of the fan, oil smoke below the range hood is sucked into the fan, accelerated by the fan and then collected and guided by the volute to be discharged out of a room.
According to the air inlet form of the range hood, the range hood can be divided into two types, namely an air inlet fixed range hood and an air inlet moving range hood. The fixed range hood, such as the range hood disclosed in chinese patent application No. 201610092399.X, includes an electrostatic oil fume purification apparatus, an air inlet, and a fume guide plate for guiding oil fume into the air inlet, wherein the oil fume flowing in from the air inlet at least partially flows through the electrostatic oil fume purification apparatus; and the smoke guide plate is used for shielding the electrostatic oil fume purification device.
The movable range hood, as disclosed in the applicant's chinese patent application No. 201611244535.9, includes a decorative cover, a fan housing, a smoke collecting hood and a movable part, wherein the fan housing is disposed inside the decorative cover, the movable part is disposed below the smoke collecting hood, a mounting cavity is formed between the decorative cover and the fan housing, and a driving mechanism capable of driving the movable part to move is installed in the mounting cavity. The smoke guide plate (movable part) in the form can automatically realize the change of the air inlet area along with the size of the oil smoke, so that the balance between noise reduction and the effect of improving the oil smoke absorption is realized, the use experience of a user is greatly improved, and the smoke guide plate is popular in the market.
The driving part of the movable range hood in the current market comprises a gear reduction motor, a worm and gear motor and an electric push rod, and the electric push rod is reliable in movement, low in maintenance rate and dominant in position. In the applicant's patent, the motor drives the worm to rotate to realize the linear motion of the ball screw, so that the movable part at the air inlet moves up and down to change the area of the air inlet. Because the worm and the ball screw have great friction force in the operation process, lubricating grease is often required to be added to reduce the friction force, and the service life of the push rod is prolonged; lubricating grease can change its characteristic (for example when range hood uses in northeast winter or ambient temperature is less than 5 degrees centigrade) by the temperature influence on the one hand, and on the other hand uses for a long time and causes the characteristic to change because of invading impurity or life-span problem, and lubricating grease lubrication effect became invalid, and these two aspects can make lubrication effect obviously weaken or become invalid, easily cause the electric putter frictional force increase when just starting to cause the electric current too big, make range hood power supply panel trigger current overload protection stop work, cause range hood work to become invalid. Therefore, grease as a conventional consumable needs to be replaced in a timely manner.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a motion mechanism, which can prompt maintenance in time and prolong the service life, in order to overcome the defects of the prior art.
The second technical problem to be solved by the invention is to provide a range hood with the moving mechanism.
The third technical problem to be solved by the invention is to provide a control method of the range hood.
The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides a motion, includes actuating mechanism, lead screw nut mechanism and is used for transmitting actuating mechanism's output to the drive mechanism's drive mechanism of lead screw nut mechanism, be provided with lubricating grease on drive mechanism and the lead screw nut mechanism, its characterized in that: the movement mechanism further comprises a temperature measuring probe for detecting the temperature characteristic change of the lubricating grease.
Preferably, the screw nut mechanism comprises a ball screw and a nut sleeved on the ball screw, the ball screw is in threaded connection with the nut, and the temperature measuring probe is arranged adjacent to the ball screw.
In order to support the ball screw conveniently and facilitate the rotation of the ball screw, the screw nut mechanism further comprises a first shell, the ball screw is arranged in the first shell, one end of the ball screw is connected with the transmission mechanism, the other end of the ball screw is rotatably connected with the first shell, and the temperature measuring probe is arranged on the first shell.
Preferably, the driving mechanism is a motor, the transmission mechanism includes a worm and a worm wheel which are engaged with each other, the worm wheel is disposed on the ball screw to rotate synchronously, and the worm is disposed on or serves as an output shaft of the driving mechanism.
The technical scheme adopted by the invention for solving the second technical problem is as follows: a range hood using the moving mechanism comprises a movable part driven by the moving mechanism, and is characterized in that: the range hood also comprises a maintenance indicator light which can work according to the temperature detected by the temperature measuring probe.
Preferably, the range hood further comprises a smoke collecting cover, an air inlet is formed in the smoke collecting cover, the movable part is a smoke guide plate located below the air inlet, and the movable part is driven by the motion mechanism to lift relative to the air inlet.
In order to avoid the oil smoke to interfere the movement mechanism, the range hood further comprises a fan frame arranged above the smoke collecting hood and a fan outer cover arranged on the periphery of the fan frame, and the movement mechanism is arranged between the fan frame and the fan outer cover.
In order to facilitate the output of the ball screw nut to drive the movable part, the motion mechanism further comprises a lifting rod and a guide rail, the lifting rod vertically penetrates through the smoke collecting hood, so that the lower end of the lifting rod is connected to the corresponding side part of the movable part, the upper part of the lifting rod, which is positioned above the smoke collecting hood, can be connected with the output end of the screw nut mechanism, the guide rail is vertically installed on the fan frame, and the lifting rod is in sliding fit with the guide rail.
The lifting mechanism comprises a driving mechanism, a screw nut mechanism, a lifting rod, a guide rail, a connecting plate and a screw nut mechanism, wherein the driving mechanism and the screw nut mechanism are installed on a front side plate of a fan frame, the lifting rod is provided with two sides and is arranged on the fan frame, the guide rail is provided with two sides and is respectively vertically installed on left and right side plates of the fan frame, the connecting plate is a U-shaped connecting plate, the middle of the connecting plate is connected with the output end of the screw nut mechanism, and the corresponding side part of the connecting plate is installed at the upper end of the lifting rod.
The technical scheme adopted by the invention for solving the third technical problem is as follows: a control method of the range hood comprises the following steps:
1) starting the range hood, and starting a temperature measuring probe to detect the temperature of the lubricating grease;
2) according to the temperature detected by the lubricating grease, the range hood is correspondingly controlled:
2.1) when the movement mechanism finishes a complete stroke and the temperature probe detects that the temperature of the lubricating grease rises by A degrees, the movement mechanism does not change at the moment and does not remind maintenance; at this time, the grease properties are maintained at a% lubrication function, and a is 100;
2.2) when the movement mechanism finishes a complete stroke, the temperature measuring probe detects that the temperature of the lubricating grease rises by B degrees, the current electrically controlled by the range hood to the driving mechanism is reduced, and the movement speed of the movement mechanism is reduced; this indicates that the grease properties are maintained at b% lubrication function;
2.3) when the movement mechanism finishes a complete stroke, the temperature measuring probe detects the temperature rise C degree of the lubricating grease, the lubricating grease is determined to be maintained, and a maintenance indicator lamp on a switch of the range hood flickers; this indicates that the grease properties are maintained at c% lubrication function;
2.4) when the movement mechanism finishes a complete stroke, the temperature measuring probe detects the temperature rise D degree of the lubricating grease, the maintenance indicator lamp on the switch of the range hood is normally on, and it is clear that the grease of a user needs to be maintained and the range hood stops working; this indicates that the grease properties are maintained at d% lubrication;
the above parameters satisfy A < B < C < D, a > B > C > D.
Compared with the prior art, the invention has the advantages that: by arranging the temperature measuring probe capable of detecting the temperature of the lubricating grease, the characteristic change of the lubricating grease can be reflected through the temperature rise speed of the lubricating grease, so that whether the lubricating grease fails or not can be judged according to the characteristic change, a user can be reminded whether the lubricating grease needs to be maintained or not, and the service life of a movement mechanism is prolonged; when the movement mechanism is applied to the range hood, the speed of the movement mechanism can be controlled or a user can be reminded of maintaining the lubricating grease according to the characteristics of the lubricating grease, and the service life of the whole range hood can be prolonged.
Drawings
FIG. 1 is a schematic view of a range hood according to an embodiment of the present invention;
FIG. 2 is a schematic view of the range hood of FIG. 2 hiding a fan housing;
FIG. 3 is a schematic view of the hidden connecting plate of the range hood in FIG. 2;
FIG. 4 is an enlarged view of a portion I of FIG. 3;
fig. 5 is an exploded structural schematic view of a driving mechanism of a range hood according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
Referring to fig. 1 to 3, a range hood comprises a fume collecting hood 3, a fan frame 1 arranged above the fume collecting hood 3, a fan outer cover 2 arranged at the periphery of the fan frame 1 and a movable part 4. The fume collecting hood 3 is provided with an air inlet 31, so that a fan system (not shown) in the fan frame 1 can suck in the fume gas flow through the air inlet 31 and discharge the fume gas flow. In this embodiment, the movable member 4 is a smoke guide plate, is located below the air inlet 31, and can be lifted relative to the air inlet 31.
The range hood also comprises a movement mechanism 6 for driving the movable part 4 to lift, and the movement mechanism 6 is arranged between the fan frame 1 and the fan outer cover 2. The movement mechanism 6 comprises a lifting rod 61, a driving mechanism 62, a screw nut mechanism 63, a connecting plate 64 and a guide rail 65, wherein the driving mechanism 62 and the screw nut mechanism 63 are installed on a front side plate of the fan frame 1, the lifting rod 61 forms an output end of the movement mechanism 6, and two lifting rods 61 are arranged on two sides of the fan frame 1. The elevating rod 61 vertically penetrates the fume collecting hood 3 so that the lower end of the elevating rod 61 is connected to the corresponding side of the movable part 4, and the upper end of the elevating rod 61 is installed to the corresponding side of the connecting plate 64. Two guide rails 65 are vertically arranged on the left side plate and the right side plate of the fan frame 1 respectively, the connecting plates 64 are U-shaped connecting plates, the lifting rods 61 are in sliding fit with the guide rails 65 on the corresponding sides respectively, and the middle of each connecting plate 64 is connected with the output end of the screw nut mechanism 63.
Referring to fig. 3 to 5, the screw nut mechanism 63 includes a ball screw 631 and a nut 632 sleeved on the ball screw 631, the ball screw 631 is in threaded connection with the nut 632, and the nut serves as an output end of the screw nut mechanism 63. The ball screw 631 extends longitudinally and is rotatable about its own axis by the drive mechanism 62. Therefore, when the driving mechanism 62 drives the ball screw 631 to rotate, the nut 632 is driven to move up and down. During operation, the driving mechanism 62 drives the connecting plate 64 to move up and down along the guide rail 65 through the lead screw nut mechanism 63, so that the lifting rod 61 and the movable part 4 move up and down synchronously.
The screw-nut mechanism 63 further includes a first housing 633, and a ball screw 631 is provided in the first housing 633. In the present embodiment, the driving mechanism 62 is disposed above the ball screw 631, and the lower end of the ball screw 631 is rotatably coupled to the first housing 633, whereby the rotation of the ball screw 631 can be supported.
In the present embodiment, it is preferable that the driving mechanism 62 is a motor, and a transmission mechanism is provided between the driving mechanism 62 and the lead screw nut mechanism 63. Preferably, the transmission mechanism is a worm gear mechanism, and the driving mechanism 62 drives the lead screw nut mechanism 63 to act through the worm gear mechanism. The output shaft of the driving mechanism 62 is provided with a worm 621, or the output shaft of the driving mechanism 62 is in the structure of the worm 621, the top periphery of the ball screw 631 is sleeved with a worm wheel 622, the worm 621 transversely extends, the rotating shaft of the worm wheel 622 longitudinally extends, and the worm 621 is meshed with the worm wheel 622. Therefore, when the driving mechanism 62 is started, the worm 621 can be driven to rotate around its axis, and since the worm wheel 622 is meshed with the worm 621, the worm 621 can drive the worm wheel 622 to rotate, and the worm wheel 622 drives the ball screw 631 to rotate synchronously, so that the nut 632 can move up and down along the ball screw 631.
Since there is a large frictional force between two relatively moving parts of the transmission mechanism and the lead screw-nut mechanism 63, grease is usually provided on the transmission mechanism and the lead screw-nut mechanism 63. A temperature probe 66 is disposed adjacent to the ball screw 631, for example, on the first housing 633, and is used for detecting the temperature of the grease of the ball screw 631 in real time, and the temperature probe 66 may be a contact probe. The frictional heat generated when the worm 621 and the ball screw 631 (worm wheel 622) operate is transferred to the temperature increase change speed of the grease to reflect the characteristic change of the grease.
The range hood comprises a maintenance indicator lamp 5, such as can be arranged at the front side of the fume collecting hood 3. The control method of the range hood during working comprises the following steps:
1) starting the range hood, and starting the temperature measuring probe 66 to detect the temperature of the lubricating grease;
2) according to the temperature detected by the lubricating grease, the range hood is correspondingly controlled:
2.1) when the movement mechanism 6 finishes a complete stroke and the temperature probe 66 detects that the temperature of the lubricating grease rises by A degrees, the movement mechanism 6 does not change at this moment and does not remind maintenance; at this time, the grease properties are maintained at a% lubrication function, and a is 100;
2.2) when the movement mechanism 6 finishes a complete stroke, the temperature measuring probe 66 detects that the temperature of the lubricating grease rises by B degrees, the current electrically controlled by the range hood to the driving mechanism 62 is reduced, the movement speed of the movement mechanism 6 is reduced, and the service life of the range hood is prolonged; this indicates that the grease properties are maintained at b% lubrication function;
2.3) when the movement mechanism 6 finishes a complete stroke, the temperature measuring probe 66 detects the temperature rise C degree of the lubricating grease, the lubricating grease is determined to need maintenance, and the maintenance indicator lamp 5 on the switch of the range hood flashes normally; this indicates that the grease properties are maintained at c% lubrication function;
2.4) when the movement mechanism 6 finishes a complete stroke, the temperature measuring probe 66 detects the temperature rise D degree of the lubricating grease, the maintenance indicator lamp 5 on the switch of the range hood is normally on, and it is clear that the grease of a user needs to be maintained and the range hood stops working, so that the situation that the service life of the range hood is influenced by overlarge starting current when the range hood is started is avoided; this indicates that the grease properties are maintained at d% lubrication;
the above parameters satisfy A < B < C < D, a > B > C > D, B may preferably be 70, C may preferably be 50, and D may preferably be 30.
Claims (8)
1. A control method of a range hood comprises a motion mechanism and a movable part (4) driven by the motion mechanism, wherein the motion mechanism comprises a driving mechanism (62), a lead screw and nut mechanism (63) and a transmission mechanism for transmitting the output of the driving mechanism (62) to the lead screw and nut mechanism (63), lubricating grease is arranged on the transmission mechanism and the lead screw and nut mechanism (63), and the control method is characterized in that: the movement mechanism further comprises a temperature measuring probe (66) for detecting the temperature characteristic change of the lubricating grease, the range hood further comprises a maintenance indicator lamp (5) capable of working according to the temperature detected by the temperature measuring probe (66), and the control method comprises the following steps:
1) starting the range hood, and starting the temperature measuring probe (66) to detect the temperature of the lubricating grease;
2) according to the temperature detected by the lubricating grease, the range hood is correspondingly controlled:
2.1) when the movement mechanism finishes a complete stroke and the temperature probe (66) detects that the temperature of the lubricating grease rises by A degrees, the movement mechanism does not change at the moment and does not remind maintenance; at this time, the grease properties are maintained at a% lubrication function, and a is 100;
2.2) when the movement mechanism finishes a complete stroke, the temperature measuring probe (66) detects that the temperature of the lubricating grease rises by B degrees, the current of the electric control of the range hood to the driving mechanism (62) is reduced, and the movement speed of the movement mechanism is reduced; this indicates that the grease properties are maintained at b% lubrication function;
2.3) when the movement mechanism finishes a complete stroke, the temperature measuring probe (66) detects the temperature rise C degree of the lubricating grease, the lubricating grease is determined to need maintenance, and a maintenance indicator lamp (5) on a switch of the range hood flickers; this indicates that the grease properties are maintained at c% lubrication function;
2.4) when the movement mechanism finishes a complete stroke, the temperature measuring probe (66) detects the temperature rise D degree of the lubricating grease, and the maintenance indicator lamp (5) on the switch of the range hood is normally on, so that the condition that the grease of a user needs to be maintained and the range hood stops working is determined; this indicates that the grease properties are maintained at d% lubrication;
the above parameters satisfy A < B < C < D, a > B > C > D.
2. The control method of the range hood according to claim 1, characterized in that: the screw nut mechanism (63) of the movement mechanism comprises a ball screw (631) and a nut (632) sleeved on the ball screw (631), the ball screw (631) is in threaded connection with the nut (632), and the temperature measuring probe (66) is arranged adjacent to the ball screw (631).
3. The control method of the range hood according to claim 2, characterized in that: the screw and nut mechanism (63) of the movement mechanism further comprises a first shell (633), the ball screw (631) is arranged in the first shell (633), one end of the ball screw (631) is connected with the transmission mechanism, the other end of the ball screw (631) is rotatably connected with the first shell (633), and the temperature measuring probe (66) is arranged on the first shell (633).
4. The control method of the range hood according to claim 2, characterized in that: the driving mechanism (62) of the movement mechanism is a motor, the transmission mechanism comprises a worm (621) and a worm wheel (622) which are meshed with each other, the worm wheel (622) is arranged on a ball screw (631) to rotate synchronously, and the worm (621) is arranged on an output shaft of the driving mechanism (62) or serves as an output shaft of the driving mechanism (62).
5. The control method of the range hood according to any one of claims 1 to 4, wherein: the range hood still includes collection petticoat pipe (3), air intake (31) have been seted up on collection petticoat pipe (3), movable part (4) are for being located the smoke deflector of air intake (31) below, movable part (4) are driven by the motion and can go up and down relative air intake (31).
6. The control method of the range hood according to claim 5, characterized in that: the range hood further comprises a fan frame (1) arranged above the smoke collecting hood (3) and a fan outer cover (2) arranged on the periphery of the fan frame (1), and the movement mechanism is arranged between the fan frame (1) and the fan outer cover (2).
7. The control method of the range hood according to claim 6, characterized in that: the motion mechanism further comprises a lifting rod (61) and a guide rail (65), the lifting rod (61) vertically penetrates through the smoke collecting hood (3) so that the lower end of the lifting rod (61) is connected to the corresponding side portion of the movable component (4), the upper portion, located above the smoke collecting hood (3), of the lifting rod (61) can be connected with the output end of the screw nut mechanism (63), the guide rail (65) is vertically installed on the fan frame (1), and the lifting rod (61) is in sliding fit with the guide rail (65).
8. The control method of the range hood according to claim 7, characterized in that: the utility model discloses a fan frame, including actuating mechanism (62) and lead screw nut mechanism (63), lifter (61) have two and locate the both sides of fan frame (1), guide rail (65) have two and respectively vertical installation on the board of the left and right sides of fan frame (1), motion further includes connecting plate (64), connecting plate (64) are U type connecting plate, the intermediate junction of connecting plate (64) is at the output of lead screw nut mechanism (63), the corresponding lateral part of upper end erection joint board (64) of lifter (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011061897.0A CN112178722B (en) | 2020-09-30 | 2020-09-30 | Control method of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011061897.0A CN112178722B (en) | 2020-09-30 | 2020-09-30 | Control method of range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112178722A CN112178722A (en) | 2021-01-05 |
| CN112178722B true CN112178722B (en) | 2021-12-24 |
Family
ID=73947375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011061897.0A Active CN112178722B (en) | 2020-09-30 | 2020-09-30 | Control method of range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112178722B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856512A (en) * | 2021-01-11 | 2021-05-28 | 宁波方太厨具有限公司 | Movement mechanism and range hood with same |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09114317A (en) * | 1995-10-20 | 1997-05-02 | Fuji Xerox Co Ltd | Thermostat |
| CN201003990Y (en) * | 2007-01-30 | 2008-01-09 | 九阳股份有限公司 | Pole temperature measurement device |
| JP4335286B2 (en) * | 2008-02-08 | 2009-09-30 | ファナック株式会社 | Robot control apparatus and robot control method having component protection function |
| US8602338B2 (en) * | 2010-11-22 | 2013-12-10 | Alstom Technology Ltd | Oscillation monitor for pulverizer journal assembly |
| US9291203B2 (en) * | 2013-03-12 | 2016-03-22 | Regal Beloit America, Inc. | Temperature sensing grease fitting with alarm |
| CN204630729U (en) * | 2014-12-30 | 2015-09-09 | 舍弗勒技术有限两合公司 | Bearing detection system |
| CN206330179U (en) * | 2016-12-22 | 2017-07-14 | 深圳市恒兴盛厨具有限公司 | Antifog oil network petticoat pipe |
| CN108253478B (en) * | 2016-12-29 | 2024-04-16 | 宁波方太厨具有限公司 | Movable part lifting mechanism of range hood and range hood using same |
| CN107975838B (en) * | 2017-05-26 | 2024-02-20 | 宁波方太厨具有限公司 | Range hood with movable smoke guide plate |
| CN107300198A (en) * | 2017-07-19 | 2017-10-27 | 宁波方太厨具有限公司 | A kind of elevating mechanism and application have the range hood of the elevating mechanism |
| CN110567013B (en) * | 2019-08-26 | 2024-04-16 | 华帝股份有限公司 | Fume exhauster |
| CN210970939U (en) * | 2019-11-25 | 2020-07-10 | 郑州希威机械设备有限公司 | Axle hub temperature monitoring mechanism and axle hub temperature monitoring system |
-
2020
- 2020-09-30 CN CN202011061897.0A patent/CN112178722B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112178722A (en) | 2021-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206330188U (en) | A kind of intelligent range hood | |
| CN110906391B (en) | Lighting device, range hood applying same and cooking device | |
| CN112178722B (en) | Control method of range hood | |
| CN108253481A (en) | A kind of range hood | |
| CN111520784B (en) | Range hood and position determining method and control method of lifting component of range hood | |
| CN111594894B (en) | Fume exhaust fan | |
| CN111578333B (en) | Control method of cooking device | |
| CN216079969U (en) | Fume exhaust fan | |
| CN216557266U (en) | Fume exhaust fan | |
| CN113685862A (en) | Range hood and control method thereof | |
| CN206478708U (en) | A kind of European-style range hood of guard energy automatic lifting | |
| CN112856512A (en) | Movement mechanism and range hood with same | |
| CN216079949U (en) | Fume exhaust fan | |
| CN113639293A (en) | Range hood and control method thereof | |
| CN218295871U (en) | Cooking fume exhauster | |
| CN216079947U (en) | Fume exhaust fan | |
| CN216790275U (en) | Fume exhaust fan | |
| CN216079945U (en) | Fume exhaust fan | |
| CN218295874U (en) | Fume exhaust fan | |
| CN114233654B (en) | Control method of range hood | |
| CN216079946U (en) | Fume exhaust fan | |
| CN216079948U (en) | Fume exhaust fan | |
| CN115247813A (en) | Range hood and control method thereof | |
| CN113685865A (en) | Range hood and control method thereof | |
| CN111853893B (en) | Range hood and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |