CN113108344B - Range hood, working method of range hood and kitchen appliance - Google Patents
Range hood, working method of range hood and kitchen appliance Download PDFInfo
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- CN113108344B CN113108344B CN202110427352.5A CN202110427352A CN113108344B CN 113108344 B CN113108344 B CN 113108344B CN 202110427352 A CN202110427352 A CN 202110427352A CN 113108344 B CN113108344 B CN 113108344B
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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
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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
- F24C15/2021—Arrangement or mounting of control or safety systems
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- General Engineering & Computer Science (AREA)
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Abstract
A range hood, a working method of the range hood and a kitchen appliance. The invention relates to a range hood, which comprises a shell, wherein at least two oil smoke channels are arranged in the shell, an air inlet of each oil smoke channel is provided with a first plate body which can be opened and closed, and a second plate body which can adjust the opening degree of the oil smoke channel is arranged in each oil smoke channel; the air outlets of the oil smoke channels are communicated, and a fan is arranged in an air outlet area at the downstream of the air outlet of each oil smoke channel. The range hood can effectively suck oil smoke in different areas through one fan. The invention also relates to a working method of the range hood, which controls the opening of the first plate body and the second plate body of the corresponding oil smoke channel according to the specific working conditions of each working area on the kitchen range; and the conduction condition of the adjacent oil smoke channels is controlled according to the oil smoke concentration difference of the two adjacent air inlets. The working method of the range hood can effectively avoid the escape of the oil smoke. The invention also relates to a cooking appliance which comprises the range hood and a cooking machine arranged in the shell. The cooking appliance has rich functions and small occupied space.
Description
Technical Field
The invention relates to a range hood, a working method of the range hood and kitchen appliances integrally applied with the range hood.
Background
The range hood is used as an indispensable kitchen appliance for people, and has the main functions of sucking oil smoke generated during cooking by a user from an air inlet through an impeller of a fan system, filtering the oil smoke by using an air inlet filter screen and the impeller, and discharging the filtered oil smoke from an air outlet, thereby completing the purification work of the kitchen environment. In life, a user often uses only one cooker, so that the scheme that air inlets are respectively formed for cookers on two sides is also provided in the prior art, and the two sides are respectively controlled by a single fan, so that a separate control effect is achieved. For example, in the chinese utility model patent "a range hood" with the publication number CN208170469U (application number 201820240288.3), the range hood disclosed therein is provided with a first fan and a second fan, and each fan is correspondingly provided with an air inlet. But the range hood overall structure of this structure is bigger than normal, and when both sides simultaneous operation because two fan operating condition differed and can lead to both sides oil absorption cigarette effect different, arouses the motion irregularity of oil smoke, probably causes the escape of oil smoke when serious, seriously influences the lampblack absorber oil absorption cigarette effect, reduces and uses experience.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a range hood capable of effectively sucking oil smoke in different areas by one fan, aiming at the above prior art.
The second technical problem to be solved by the present invention is to provide a working method of a range hood capable of effectively preventing oil smoke from escaping, aiming at the above prior art.
The third technical problem to be solved by the present invention is to provide a kitchen appliance with more abundant functions and small space occupation in the kitchen, aiming at the above prior art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides a range hood, includes the casing, its characterized in that: at least two oil smoke channels are arranged in the shell, a first plate body capable of being opened and closed is arranged at an air inlet of each oil smoke channel, and a second plate body capable of adjusting the opening degree of each oil smoke channel is arranged in each oil smoke channel; the air outlets of the oil smoke channels are communicated, and a fan is arranged in an air outlet area at the downstream of the air outlet of each oil smoke channel.
Preferably, a driving mechanism is arranged in the casing corresponding to each oil smoke channel, and the driving mechanism is respectively connected with the first plate body and the second plate body.
In order to conveniently realize the simultaneous driving of the first plate body and the second plate body, the driving mechanism comprises
A drive source;
a drive rod connected to the drive source;
the balance plate is limited on the driving rod and can move in a set distance relative to the driving rod;
the linkage rod is connected on the balance plate in a penetrating way and is connected with the first plate body;
and the transmission assembly is rotatably connected to the balance plate, and two ends of the transmission assembly are respectively connected with the driving rod and the second plate body.
As an improvement, a guide pipe is arranged on the shell along the movement direction of the first plate body, the guide pipe is sleeved outside the upper end part of the linkage rod, and the lower end of the linkage rod is connected with the first plate body; the guide pipe is internally provided with a step surface, and the upper end of the linkage rod is provided with an end cap limited on the step surface;
the lower end of the driving rod penetrates through the balance plate, an upper end plate and a lower end plate are arranged at the lower end of the driving rod at intervals, the upper end plate is positioned above the balance plate, and the lower end plate is positioned below the balance plate;
a connecting column is connected between the upper end plate and the lower end plate, the upper part of the connecting column penetrates through the balance plate, and a limiting surface for limiting the balance plate to move downwards is arranged on the upper part of the connecting column corresponding to the set distance of the balance plate relative to the movement of the driving rod;
the spliced pole overcoat is equipped with the spring, the both ends of spring are connected respectively on balance plate and lower end plate.
Simple structure ground, drive assembly including rotate the first gear spare of connection on the drive arm of drive arm, integrated connection on the lower end plate, with second plate body fixed connection's second gear spare, first gear spare can contact and mesh with second gear spare, first plate body rotates and connects on the casing, the drive arm rotates with the junction of first gear spare and connects on the balance plate.
In order to ensure the sealing performance of the second plate body for closing the oil smoke channel, the outer side of the second plate body is provided with a magnetic suction piece, and a part in the casing corresponding to the closed position of the second plate body is made of a material capable of attracting the magnetic suction piece.
Preferably, the air inlets of the oil smoke channels are communicated with each other to form an oil smoke inlet area in the machine shell of the range hood.
Preferably, an air inlet filter screen is arranged on the casing corresponding to the inlet part of the smoke inlet area.
As an improvement, an oil smoke channel is arranged in the machine shell corresponding to each cooking area on the stove, and an air inlet of the oil smoke channel is arranged facing the cooking area.
The technical scheme adopted by the invention for solving the second technical problem is as follows: the working method of the range hood is characterized in that: controlling the first plate body and the second plate body of the corresponding oil smoke channel to be opened according to the specific working conditions of each working area on the stove;
acquiring the oil smoke concentration value at each air inlet, comparing the oil smoke concentration difference between two adjacent air inlets, and controlling the first plate body of the oil smoke channel corresponding to the air inlet with the smaller oil smoke concentration value to be opened and simultaneously controlling the opening degree of the second plate body of the oil smoke channel to be increased after the absolute value of the oil smoke concentration difference exceeds a set threshold value.
As an improvement, the set threshold includes a basic threshold and a height difference threshold, wherein the height difference threshold is greater than the basic threshold, when the absolute value of the oil smoke concentration difference is between the basic threshold and the height difference threshold, the opening degree of the second plate in the adjacent oil smoke channel is correspondingly adjusted according to the absolute value of the oil smoke concentration difference, and when the absolute value of the oil smoke concentration difference is greater than the height difference threshold, the opening degree of the second plate in the adjacent oil smoke channel is adjusted according to the set opening degree.
The technical scheme adopted by the invention for solving the third technical problem is as follows: an electric cooking appliance characterized in that: the range hood comprises the range hood, a cooking machine is further arranged in the casing, the cooking machine separates the space in the casing into two oil smoke channels, the cooking machine is arranged at the upstream of the fan, and a door body of the cooking machine is embedded in the front end face of the casing.
As an improvement, the oil fume channel is positioned on two sides of the cooking machine.
As an improvement, the cooking appliance applies the working method of the range hood.
Compared with the prior art, the invention has the advantages that: the range hood is provided with only one fan, and the space in the shell is divided into at least two oil smoke channels, so that oil smoke in different areas on the kitchen range can be sucked in a targeted manner, and the problem caused when the two fans work simultaneously can be avoided. Every oil smoke passageway can independently carry out switching and aperture regulation, and work is more nimble. And when only single oil smoke passageway switches on work, enlarged air intake negative pressure zone, promoted the oil absorption cigarette effect, promoted user experience.
The working method of the range hood can perform oil smoke suction on the oil smoke generating area on the kitchen range in a targeted manner, the oil smoke suction is more accurate and rapid, and the negative pressure suction effect is better. And under the condition that the oil smoke concentration is overlarge, the adjacent oil smoke channels are opened in an auxiliary mode to conduct oil smoke pumping work, and on the basis of guaranteeing a good oil smoke pumping effect, the condition that the oil smoke escapes is effectively avoided.
And the cooking appliance of the range hood is applied, the functions are richer, the occupied space in a kitchen is small, and the user experience is improved.
Drawings
Fig. 1 is a perspective view of a kitchen appliance in an embodiment of the present invention.
Fig. 2 is a sectional view of the range hood in an unused state according to the embodiment of the present invention.
Fig. 3 is a sectional view of the first plate and the second plate in an open state according to the embodiment of the present invention.
Fig. 4 is a sectional view of the first plate in an open state and the second plate in a closed state according to the embodiment of the present invention.
Fig. 5 is a partially enlarged view of fig. 4.
Fig. 6 is a perspective view of a drive mechanism in an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 6, the range hood in this embodiment includes a housing 1, a first plate 2, a second plate 3, a fan 4, and a driving mechanism.
Wherein the machine shell 1 is provided with at least two oil smoke channels 11, and the number of the oil smoke channels 11 is matched with the number of cooking areas on the kitchen range. Specifically, one oil smoke channel 11 is arranged corresponding to each cooking area on the cooker, each cooking area forms one oil smoke generating area, and then the corresponding oil smoke channel 11 is responsible for the oil smoke suction work of the oil smoke generating area. If the conventional cooking range has two cooking areas, so as to form two oil smoke generating areas, the number of the oil smoke channels 11 can be two accordingly.
The oil smoke channel 11 may be formed by enclosing, or may be formed by enclosing the components in the casing 1. If the cooking appliance is based on the structure of the range hood, the cooking machine 100 is further arranged in the casing 1, and the front end surface of the casing 1 can be partially perforated corresponding to the door body of the cooking machine 100, so that the door body of the cooking machine 100 can be embedded in the front end surface of the casing 1 to perform opening and closing actions relative to the cooking machine 100. This cooking machine 100 sets up in the region that is close to the lampblack absorber air inlet, still is provided with in casing 1 and leads the oiled-plate in the left and right sides of cooking machine 100, leads the both sides outer wall of oiled-plate, cooking machine 100, the front and back lateral wall of casing 1 then encloses jointly and establishes two oil smoke passageways 11 that form, these two oil smoke passageways 11 are located the left and right sides of cooking machine 100 respectively. And the fan 4 is disposed downstream of the cooking machine 100 in the discharge direction of the smoke.
The cooking machine 100 may be a steam box, an oven, a microwave oven, a steaming and baking all-in-one machine, or a steaming and baking all-in-one machine. With culinary art machine 100 setting in the lampblack absorber, can not influence the normal work of lampblack absorber, effectively saved the space of putting in the kitchen simultaneously, the space utilization in kitchen is higher.
The air outlets of the oil smoke channels 11 are communicated with each other to form an air outlet area at the downstream of the air outlet of each oil smoke channel 11, and the fan 4 is arranged in the air outlet area, so that when the fan 4 works, each oil smoke channel 11 can realize oil smoke suction work, and when all the oil smoke channels 11 are communicated, the oil smoke suction work in each oil smoke channel 11 cannot influence each other, the stability of oil smoke suction is ensured, and the escape of oil smoke is also avoided.
The air intake of each oil smoke passageway 11 also communicates each other and forms into the cigarette district in the casing 1 of lampblack absorber, is provided with air intake filter 12 corresponding to the entering part that advances the cigarette district on the casing 1, and air intake filter 12 can exert preliminary oil smoke separation effect.
The air inlet of the oil smoke passage 11 is arranged facing the cooking area. An air inlet of each oil smoke channel 11 is provided with a first plate body 2 which can be opened and closed, and a second plate body 3 which can adjust the opening degree of the oil smoke channel 11 is arranged in the oil smoke channel 11. I.e., the suction area that the air inlet of the cooking fumes passage 11 faces is determined by the shape and area of the first plate body 2. And the opening degree of the second plate body 3 directly influences the pumping amount of the oil smoke. Certainly can all set up drive structure to first plate body 2, second plate body 3, but for the facility of structure, reduce the installation space in casing 1, and then reduce range hood's whole volume, in this embodiment, be provided with actuating mechanism corresponding to every oil smoke passageway 11 in casing 1, this actuating mechanism is connected with first plate body 2, second plate body 3 respectively, utilize an actuating mechanism to realize the drive to first plate body 2, second plate body 3 promptly simultaneously promptly.
The driving mechanism in this embodiment specifically includes a driving source 5, a driving rod 6, a balance plate 7, a linkage rod 8, a transmission assembly 9, and a guide pipe 81. The driving source 5 may be a motor, an air cylinder, or the like, the driving source 5 in this embodiment is an air cylinder, the driving rod 6 is connected to the driving source 5, and the driving source 5 can drive the driving rod 6 to move along the opening and closing direction of the first plate body 2.
The balance plate 7 is limited on the driving rod 6 and can move within a set distance relative to the driving rod 6. In this embodiment, the specific connection structure of the driving rod 6 and the balance plate 7 is that the lower end of the driving rod 6 is inserted into the balance plate 7, and the driving rod 6 can move along the opening and closing direction of the first plate 2 relative to the balance plate 7. The lower end portion of the drive rod 6 is provided with an upper end plate 61 and a lower end plate 62 at an interval, so that the axial section of the lower end portion of the drive rod 6 is i-shaped. The upper end plate 61 is located above the balance plate 7, and the lower end plate 62 is located below the balance plate 7. A connecting column 63 is connected between the upper end plate 61 and the lower end plate 62, the upper part of the connecting column 63 is arranged in the balance plate 7 in a penetrating way, a limiting surface 631 for limiting the downward movement of the balance plate 7 is arranged on the upper part of the connecting column 63 corresponding to the set distance of the balance plate 7 relative to the movement of the driving rod 6, and the limiting surface 631 is formed when the diameter of the upper part of the connecting column 63 is smaller than that of the lower part. The outer cover of spliced pole 63 is equipped with spring 632, and the both ends of spring 632 are connected respectively on balance plate 7 and lower end plate 62, and in this embodiment, when spring 632 was in natural state, balance plate 7 supported on the spacing face 631 of spliced pole 63. In order to ensure the movement stability of the balance plate 7, a plurality of connecting columns 63 are uniformly distributed along the circumferential direction of the upper end plate 61 and the lower end plate 62, and a spring 632 is arranged outside each connecting column 63.
The trace 8 wears to establish and connects on balance plate 7 and be connected with first plate body 2, and in order to guarantee to the driven stability of first plate body 2, trace 8 can set up two at least, has set up 4 trace 8 in this implementation, and these 4 UNICOM's poles all wear to establish and fix on balance plate 7, so along with the motion of balance plate 7, can drive the synchronous motion of trace 8, guarantee the uniformity to the drive direction of first plate body 2.
The guide tube 81 is fixedly disposed on the housing 1 along the moving direction of the first plate 2, and the guide tube 81 is sleeved outside the upper end of the linkage rod 8. The lower end of the linkage rod 8 is connected with the first board body 2. A step surface 811 is arranged in the guide pipe 81, and an end cap 82 limited on the step surface 811 is arranged at the upper end of the linking rod 8. In this embodiment, the diameter of the inner hole at the upper part of the guide tube 81 is larger than the diameter of the inner hole at the lower part, so as to form the aforementioned step surface 811, and when the end cap 82 on the linking rod 8 moves down to touch the step surface 811, the downward movement cannot be performed.
The transmission assembly 9 is rotatably connected to the balance plate 7, and two ends of the transmission assembly 9 are respectively connected to the driving rod 6 and the second plate 3. The transmission assembly 9 in this embodiment includes a transmission arm 91 rotatably connected to the lower end plate 62, a first gear member 92 integrally connected to the transmission arm 91, and a second gear member 93 fixedly connected to the second plate 3, wherein the first gear member 92 can contact and mesh with the second gear member 93 with the change of the position of the driving rod 6 relative to the second plate 3. Specifically, the first gear member 92 and the second gear member 93 in this embodiment are both fan-shaped gear members, and occupy a relatively small installation space. The first plate 2 is rotatably connected to the housing 1 through a rotating shaft. The lower surface of the balance plate 7 extends downwards to form a mounting column, and the joint of the transmission arm 91 and the first gear piece 92 is rotatably connected to the balance plate 7 through a rotating shaft.
When the range hood is in a non-working state, the first plate body 2 is in a state of closing the air inlet of the oil smoke passage 11, and in this state, the second plate body 3 can be set to be in a state of opening the oil smoke passage 11 or a state of closing the oil smoke passage 11 as required. When the second plate 3 is in a state of closing the oil smoke passage 11, an oil smoke concentration sensor can be arranged on the surface of the case 1 facing the kitchen range to detect the oil smoke concentration conditions of different areas on the kitchen range, when oil smoke is generated in one area of the kitchen range and no oil smoke is generated in the other area of the kitchen range, only a driving mechanism corresponding to the oil smoke passage 11 in the area needs to be operated to drive the first plate 2 to be opened, and the second plate 3 is driven to be opened to a required opening degree. Since the second plate 3 in the oil smoke channel 11 of the other area is in a state of closing the oil smoke channel 11, only the oil smoke will not pass through the oil smoke channel 11 corresponding to the other area, and thus the driving mechanism corresponding to the oil smoke channel 11 of the other area does not need to be operated.
In this embodiment, when the range hood is in the non-operating state, the first plate 2 is in a state of closing the air inlet of the oil smoke passage 11, and the second plate 3 is in a state of completely opening the oil smoke passage 11. Therefore, when the range hood works, the driving mechanisms corresponding to the oil smoke channels 11 need to operate to close the oil smoke channels 11 which are not needed to be used.
The specific process of the driving mechanism driving the first plate 2 and the second plate 3 in this embodiment is as follows.
When the range hood is in a non-working state, the first plate body 2 is in a state of closing the air inlet of the oil smoke passage 11, and the second plate body 3 is in a state of completely opening the oil smoke passage 11. At this time, the driving lever 6 is located at the uppermost position, the interlocking lever 8 is located at a large aperture area in the guide tube 81, and the end cap 82 of the interlocking lever 8 is located above the step surface 811 and at a certain distance from the step surface 811. The spring 632 is in a natural state and the balance plate 7 abuts on the lower end plate 62 of the drive lever 6. After the range hood is started to work, each driving mechanism acts, namely when the driving source 5 drives the driving rod 6 to move downwards, the spring 632 slightly deforms at the moment to generate a pulling force on the balance plate 7, the balance plate 7 is pulled to synchronously move downwards along with the driving rod 6, and in the process that the balance plate 7 moves downwards, the linkage rod 8 and the first plate body 2 are driven to synchronously move downwards. Thus, the first plate 2 is far away from the air inlet of each oil smoke passage 11 to open the air inlet of each oil smoke passage 11. With the continuous downward movement of the driving rod 6, when the linkage rod 8 moves to the position where the end cap 82 touches the inner limit surface 631 of the guiding tube 81, the linkage rod 8 cannot move downward any more, the balance plate 7 and the first plate 2 correspondingly cannot move downward any more, and the first plate 2 completely opens the air inlet of the oil smoke channel 11. At this moment, the oil smoke concentration sensor that oil smoke passageway 11 air intake department set up can detect and acquire the oil smoke concentration that corresponds oil smoke passageway 11, when the oil smoke concentration of 11 air intakes of one of them oil smoke passageway is higher than the oil smoke concentration of 11 air intakes of other oil smoke passageways, then show that the region corresponding to this oil smoke passageway air intake department on the cooking utensils is cooking the work, need use this oil smoke passageway 11 to carry out oil absorption cigarette work, second plate body 3 action in steerable other oil smoke passageways 11 this moment is in order to close other oil smoke passageways 11, promote the suction capacity to the oil smoke. Or when the oil smoke channel needs to be assisted to absorb oil smoke, the second plate bodies 3 in other oil smoke channels are adjusted to the required opening degree. The driving process of the second plate 3 is as follows: the driving source 5 continues to drive the driving rod 6 to move downwards, at this time, the position of the first plate body 2 remains unchanged, the lower end plate 62 on the lower end of the driving rod 6 continues to move downwards, so that the spring 632 is stretched and expanded, the small diameter part on the upper part of the connecting column 63 provides a moving range of the driving rod 6 relative to the balance plate 7 for the downwards movement of the driving rod 6, because the lower end plate 62 continues to move downwards, and the position of the balance plate 7 remains unchanged, so that the driving rod 6 drives the transmission arm 91 to rotate, so that the first gear piece 92 and the second gear piece 93 are in contact and meshed transmission, and further the second plate body 3 is driven to rotate through the transmission action of the first gear piece 92 and the second gear piece 93, so that the opening degree of the second plate body 3 is adjusted or the second plate body 3 is directly closed, and the specific opening degree of the second plate body 3 is determined by the moving distance of the upper end plate 62 and the lower end plate 62 of the driving rod 6 relative to the balance plate 7, when the balance plate 7 is moved to contact the upper end plate 61 on the driving rod 6, the second plate body 3 completely closes the smoke passage. In addition, a magnetic member 31 is disposed on the outer side of the second plate 3, and a part of the casing 1 corresponding to the closed position of the second plate 3 is made of a material capable of attracting the magnetic member 31. If the side wall of the cooking machine 100 is made of metal plate in this embodiment, when the second plate 3 is closed, the side edge is firmly connected to the side wall of the cooking machine 100 through the magnetic member 31, so as to ensure the sealing property when the oil smoke passage 11 is closed.
The closing process of the first plate body 2 and the resetting process of the second plate body 3 are opposite to the above processes, namely, along with the continuous upward movement of the driving rod 6, the second plate body 3 gradually opens the oil smoke channel 11, and the first plate body 2 closes the air inlet of the oil smoke channel 11.
In the working process, in order to detect the oil smoke concentration at the air inlet of each oil smoke channel 11, an oil smoke concentration sensor can be arranged on the casing 1 corresponding to the position of the air inlet of each oil smoke channel 11.
The working method of the range hood in the embodiment specifically comprises the following steps: controlling the first plate body 2 and the second plate body 3 of the corresponding oil smoke channel 11 to be opened according to the specific working conditions of each working area on the stove; the specific working conditions of each working area on the cooker comprise whether each area on the cooker is in a cooking state, whether oil smoke is generated in the cooking state and the concentration of the generated oil smoke. When an area on the stove is in a cooking state and generates oil smoke, the first plate body 2 and the second plate body 3 on the corresponding oil smoke channel 11 are opened to further realize the oil smoke suction work, and the rotating speed of the fan 4 and the opening degree of the second plate body 3 are matched with the oil smoke concentration to ensure a good oil smoke suction effect.
When this range hood work, can acquire the oil smoke concentration value of each air inlet department, and compare the oil smoke concentration difference of two adjacent air inlets, after the absolute value of oil smoke concentration difference exceeded the settlement threshold value, then judge that the great oil smoke of oil smoke concentration value has a flue air inlet department oil smoke concentration too big, the condition that the oil smoke escaped probably exists, then the first plate body 2 of the oil smoke passageway 11 that the less air inlet of control oil smoke concentration value corresponds is opened this moment, the opening aperture of opening second plate body 3 or this oil smoke passageway 11 second plate body 3 of accent is opened in the simultaneous control, and then supplementary suction oil smoke that probably escaped, further guaranteed the oil smoke effect.
If for the cooking utensils that have two combustors about, when the left side combustor work and produce the great simultaneously of oil smoke concentration, the right side combustor is working and the oil smoke volume that produces is less, the right side combustor is working and do not produce the oil smoke, when the right side combustor does not work, can be when keeping first plate body 2, the second plate body 3 that left side oil smoke passageway 11 corresponds open, the first plate body 2, the second plate body 3 of control right side oil smoke passageway 11 also open, supplementary left side oil smoke passageway 11 carries out oil smoke suction work.
In this embodiment, the set threshold includes a base threshold and a height difference threshold, where the height difference threshold is greater than the base threshold. The basic threshold and the height difference threshold can be obtained through experimental tests in a product design stage, and the basic threshold is an oil smoke concentration critical value for generating an oil smoke escape condition. And the height difference threshold is that the corresponding oil smoke escaping condition is basically kept stable after the oil smoke concentration exceeds the threshold. When the absolute value of the oil smoke concentration difference is between the basic threshold value and the height difference threshold value, the oil smoke amount which is possibly escaped is judged to be relatively small, so that the opening degree of the second plate body 3 in the adjacent oil smoke channel 11 is correspondingly adjusted according to the absolute value of the oil smoke concentration difference, and the opening degree of the second plate body 3 in the adjacent oil smoke channel 11 is relatively small under the condition. When the absolute value of the smoke concentration difference is greater than the altitude difference threshold, it is determined that the smoke concentration is too high, and then the opening degree of the second plate 3 in the adjacent smoke passage 11 may be adjusted according to a set opening degree, which may be an opening degree that can satisfy suction of escaping smoke through a test, such as a general opening degree of the second plate 3 or a maximum opening degree of the second plate 3. Therefore, the suction effect on the possibly escaping oil smoke can be accurately controlled.
The cooking appliance can also work by adopting the working method of the range hood, and meanwhile, the cooking machine 100 works, so that in order to facilitate the exhaust work, the exhaust port of the cooking machine 100 can be communicated with the oil fume channel 11, and then when the cooking machine 100 needs to exhaust, the fan 4 is controlled to work, and the exhaust work of the cooking machine 100 is completed.
The range hood disclosed by the invention is only provided with one fan 4, and simultaneously divides the space in the machine shell 1 into at least two oil smoke channels 11, so that the range hood can perform targeted suction work on oil smoke in different areas on a kitchen range, and the problem caused when the two fans 4 work simultaneously can be avoided. Each oil smoke channel 11 can be opened and closed and the opening degree of the oil smoke channel can be adjusted independently, and the operation is more flexible. And when only single oil smoke passageway 11 switches on the work, the setting of first plate body 2 has enlarged air intake negative pressure region, has promoted the oil absorption cigarette effect, has promoted user experience.
The working method of the range hood can perform oil smoke suction on the oil smoke generating area on the kitchen range in a targeted manner, the oil smoke suction is more accurate and rapid, and the negative pressure suction effect is better. And under the condition that the oil smoke concentration is overlarge, the adjacent oil smoke channels 11 are opened in an auxiliary mode to conduct oil smoke pumping work, and on the basis of guaranteeing a good oil smoke pumping effect, the condition that the oil smoke escapes is effectively avoided.
And the cooking appliance of the range hood is applied, the functions are richer, the occupied space in a kitchen is small, and the user experience is improved.
Claims (11)
1. The utility model provides a range hood, includes casing (1), its characterized in that: at least two oil smoke channels (11) are arranged in the shell (1), a first plate body (2) which can be opened and closed is arranged at an air inlet of each oil smoke channel (11), and a second plate body (3) which can adjust the opening degree of each oil smoke channel (11) is arranged in each oil smoke channel (11); the air outlets of the oil smoke channels (11) are communicated, and a fan (4) is arranged in an air outlet area at the downstream of the air outlet of each oil smoke channel (11);
a driving mechanism is arranged in the machine shell (1) corresponding to each oil smoke channel (11), and the driving mechanism is respectively connected with the first plate body (2) and the second plate body (3);
the driving mechanism comprises
A drive source (5);
a drive lever (6) connected to the drive source (5);
the balance plate (7) is limited on the driving rod (6) and can move within a set distance relative to the driving rod (6);
the linkage rod (8) is connected to the balance plate (7) in a penetrating way and is connected with the first plate body (2);
the transmission assembly (9) is rotatably connected to the balance plate (7), and two ends of the transmission assembly (9) are respectively connected with the driving rod (6) and the second plate body (3);
a guide pipe (81) is arranged on the shell (1) along the movement direction of the first plate body (2), the guide pipe (81) is sleeved outside the upper end part of the linkage rod (8), and the lower end of the linkage rod (8) is connected with the first plate body (2); a step surface (811) is arranged in the guide pipe (81), and an end cap (82) limited on the step surface (811) is arranged at the upper end of the linkage rod (8);
the lower end of the driving rod (6) penetrates through the balance plate (7), an upper end plate (61) and a lower end plate (62) are arranged at the lower end of the driving rod (6) at intervals, the upper end plate (61) is positioned above the balance plate (7), and the lower end plate (62) is positioned below the balance plate (7);
a connecting column (63) is connected between the upper end plate (61) and the lower end plate (62), the upper part of the connecting column (63) penetrates through the balance plate (7), and a limiting surface (631) for limiting the downward movement of the balance plate (7) is arranged on the upper part of the connecting column (63) corresponding to the set distance of the balance plate (7) relative to the movement of the driving rod (6);
the spliced pole (63) overcoat is equipped with spring (632), the both ends of spring (632) are connected respectively on balance plate (7) and lower end plate (62).
2. The range hood of claim 1, wherein: drive assembly (9) including rotate drive arm (91), the first gear spare (92) of integrated connection on drive arm (91) of connection under end plate (62), with second plate body (3) fixed connection's second gear spare (93), first gear spare (92) can contact and mesh with second gear spare (93), first plate body (2) rotate to be connected on casing (1), drive arm (91) rotates with the junction of first gear spare (92) and is connected on balance plate (7).
3. The range hood of claim 1 or 2, wherein: the outside of second plate body (3) is provided with magnetism and inhales piece (31), the part that corresponds to second plate body (3) closed position department in casing (1) adopts the material that can inhale mutually with magnetism and inhales piece (31) to make.
4. The range hood of claim 2, wherein: the air inlets of the oil smoke channels (11) are communicated with each other to form a smoke inlet area in the machine shell (1) of the range hood.
5. The range hood of claim 4, wherein: an air inlet filter screen (12) is arranged on the shell (1) corresponding to the inlet part of the smoke inlet area.
6. The range hood according to claim 1 or 2, wherein: an oil smoke channel (11) is arranged in the machine shell (1) corresponding to each cooking area on the kitchen range, and an air inlet of the oil smoke channel (11) faces the cooking area.
7. A method of operating a range hood as claimed in any one of claims 1 to 6, wherein: according to the specific working conditions of all working areas on the stove, the first plate body (2) and the second plate body (3) of the corresponding oil smoke channel (11) are controlled to be opened;
the method comprises the steps of obtaining oil smoke concentration values at the air inlets, comparing oil smoke concentration differences of two adjacent air inlets, and controlling a first plate body (2) of an oil smoke channel (11) corresponding to the air inlet with a smaller oil smoke concentration value to be opened and controlling a second plate body (3) to be opened or increasing the opening degree of the second plate body (3) of the oil smoke channel (11) when the absolute value of the oil smoke concentration difference exceeds a set threshold value.
8. The operating method of a range hood according to claim 7, wherein: the set threshold comprises a basic threshold and a height difference threshold, wherein the height difference threshold is larger than the basic threshold, when the absolute value of the oil smoke concentration difference is between the basic threshold and the height difference threshold, the opening degree of the second plate body (3) in the adjacent oil smoke channel (11) is correspondingly adjusted according to the absolute value of the oil smoke concentration difference, and when the absolute value of the oil smoke concentration difference is larger than the height difference threshold, the opening degree of the second plate body (3) in the adjacent oil smoke channel (11) is adjusted according to the set opening degree.
9. An electric cooking appliance characterized in that: the range hood comprises the range hood according to any one of claims 1 to 6, and comprises a machine shell (1), wherein a cooking machine (100) is further arranged in the machine shell (1), the cooking machine (100) separates the space in the machine shell (1) into two oil fume channels (11), the air outlets of the oil fume channels (11) are communicated, and a fan (4) is arranged in an air outlet area at the downstream of the air outlet of each oil fume channel (11); the cooking machine (100) is arranged at the upstream of the fan (4), and a door body of the cooking machine (100) is embedded in the front end face of the machine shell (1).
10. The cooking appliance according to claim 9, wherein: the lampblack channel (11) is located on two sides of the cooking machine (100).
11. The cooking appliance according to claim 9, wherein: the operating method of the range hood according to claim 7 or 8 is applied.
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| CN202110427352.5A CN113108344B (en) | 2021-04-21 | 2021-04-21 | Range hood, working method of range hood and kitchen appliance |
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| CN202110427352.5A CN113108344B (en) | 2021-04-21 | 2021-04-21 | Range hood, working method of range hood and kitchen appliance |
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| CN113108344B true CN113108344B (en) | 2022-05-17 |
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| CN113915654B (en) * | 2021-10-27 | 2022-11-18 | 宁波方太厨具有限公司 | Oil fume filtering device, range hood and oil fume filtering method |
| CN115839514B (en) * | 2023-02-24 | 2023-05-23 | 杭州老板电器股份有限公司 | Control method of range hood |
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