CN109595629B - Near-suction type range hood - Google Patents
Near-suction type range hood Download PDFInfo
- Publication number
- CN109595629B CN109595629B CN201710923585.8A CN201710923585A CN109595629B CN 109595629 B CN109595629 B CN 109595629B CN 201710923585 A CN201710923585 A CN 201710923585A CN 109595629 B CN109595629 B CN 109595629B
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- Prior art keywords
- air inlet
- ternary
- range hood
- fan
- panel
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- 239000000779 smoke Substances 0.000 claims abstract description 72
- 230000000903 blocking effect Effects 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims description 36
- 230000005540 biological transmission Effects 0.000 claims description 19
- 239000003517 fume Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 12
- 235000019504 cigarettes Nutrition 0.000 description 6
- 230000003068 static effect Effects 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000000391 smoking effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000006233 lamp black Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
Abstract
The invention discloses a near-suction type range hood, which comprises a shell and a fan system, wherein the shell comprises a panel which is positioned at the front end and is inclined with the horizontal direction, and an air inlet which is formed by opening is arranged on the panel, and the near-suction type range hood is characterized in that: the fan system comprises a first ternary fan and a second ternary fan which are arranged in series, a smoke blocking screen is arranged on the front side of the panel, and the smoke blocking screen is rotationally connected with the upper portion of the panel, so that the smoke blocking screen can rotate outwards to open an air inlet of the range hood or rotate inwards to close the air inlet of the range hood. When the range hood does not work, the filter screen and the fan system which can hide greasy dirt are closed by the fume blocking screen, so that the range hood is kept clean and tidy, and the kitchen environment is obviously improved.
Description
Technical Field
The invention relates to kitchen appliances, in particular to a near-suction type range hood.
Background
The range hood has become one of the indispensable kitchen appliances in modern families. The general range hood comprises a top suction type range hood and a near suction type range hood, the near suction type range hood is far away by utilizing vortex wind pressure, most of oil smoke which is nearer to a cooking bench is absorbed in an arc line mode, adverse effects on human health can be reduced, a power source is nearer to the cooking bench, and the suction effect of the power source is basically not reduced.
The side-draft range hood disclosed in the chinese patent application No. 201110338726.2 comprises: an outer panel having a first intermediate opening; the middle panel is arranged at the first middle opening of the outer panel, and a smoke inlet is formed between the middle panel and the outer panel; the smoke collecting cavity is positioned at the inner side of the external panel and communicated with the smoke inlet; the oil cup is arranged below the smoke collecting cavity; a gap exists between the lower edge of the smoke collecting cavity and the inner surface of the outer panel to form a first oil guide channel communicated with the inner cavity of the oil cup.
According to the scheme in the prior art, the middle panel is fixed, the gap for sucking the smoke is arranged between the middle panel and the outer panel, and the gap is determined in the prior art and manufactured, so that the gap is in a permanent open state, the smoke collecting hood and the flue are in a straight-through state, the smoke baffle plate cannot effectively block smoke smell of other users in the whole flue, and great inconvenience and environmental pollution are brought to the users.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art and provides a near-suction type range hood capable of improving smoking efficiency.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a near-suction type range hood, includes casing and fan system, the casing is the panel of slope including being located the front end with the horizontal direction, set up the opening on the panel and become the air intake of range hood, its characterized in that: the fan system comprises a first ternary fan and a second ternary fan which are arranged in series, a smoke blocking screen is arranged on the front side of the panel, and the smoke blocking screen is rotationally connected with the upper portion of the panel, so that the smoke blocking screen can rotate outwards to open an air inlet of the range hood or rotate inwards to close the air inlet of the range hood.
For making keep off cigarette screen can open and shut automatically, convenient to use still includes driving mechanism and drive mechanism that is used for the drive keep off cigarette screen action, driving mechanism sets up in the casing, drive mechanism is connected with keeping off cigarette screen, driving mechanism passes through drive mechanism and drives and keep off cigarette screen and open and shut automatically.
Preferably, in order to facilitate the control of the smoke shielding screen and improve the sealing effect, the left side and the right side of the panel are respectively provided with a through groove, and the through grooves extend in the upper and lower directions; the transmission mechanism comprises two groups of combinations consisting of a first connecting seat, a second connecting seat, a connecting rod and a support, and the combinations are respectively arranged at the left side and the right side of the smoke shielding screen; in each group, one end of the first connecting seat is fixedly connected with one side of the smoke shielding screen facing the shell, the other end of the first connecting seat is rotatably connected with one end of the connecting rod, the other end of the connecting rod penetrates through the through groove to be rotatably connected with the support, the support is fixedly arranged on the inner side of the panel facing the shell, one end of the second connecting seat is fixedly connected with one side of the smoke shielding screen facing the shell, the other end of the second connecting seat penetrates through the through groove to extend to the inner side of the panel, and the second connecting seat is positioned below the first connecting seat; the driving mechanism is used for driving one of the second connecting seats to act.
Preferably, for making the flexible and reliable action of keeping off the cigarette screen, actuating mechanism is electric putter, sets up about wherein one side in the casing, actuating mechanism still includes the transfer line, and one of them second connecting seat extends into the inboard one end of panel and rotates with the one end of transfer line to be connected, the other end of transfer line is then connected with actuating mechanism's output.
For on the basis of not changing the machine case size, increase the amount of wind, first ternary fan includes first ternary impeller and first air intake, the ternary fan of second includes second ternary impeller and second air intake, on the oil smoke flow path, the second air intake is located the low reaches of first air intake, first air intake and second air intake face the same direction.
In order to enable the outlet airflow of the first-stage fan to be fully diffused, dynamic pressure is converted into static pressure and enters the second-stage fan, the diameters of the first ternary impeller and the second ternary impeller are the same, and the ratio of the distance between the first air inlet and the second air inlet to the diameter of the first ternary impeller is 0.2-1.
According to one aspect of the invention, a case is arranged above the shell, the first air inlet and the second air inlet are downward, so that the first ternary fan and the second ternary fan are horizontally arranged in the case, an air duct is formed in the case, the distance between the first air inlet of the first ternary fan and the air duct inlet is 1-2 times of the diameter of the first ternary impeller, and the distance between the center of the first ternary impeller and the air duct inlet is larger than the diameter of the first ternary impeller.
According to another aspect of the invention, a case is arranged above the shell, the first air inlet is inclined downwards so that the first ternary fan is obliquely arranged in a cavity formed by the shell and the case, and the second air inlet is inclined downwards so that the second ternary fan is horizontally arranged in the case.
According to another aspect of the invention, the first air inlet is inclined downwards so that the first ternary fan is obliquely arranged in a cavity formed by the shell and the machine case, and the second air inlet is inclined downwards so that the second ternary fan is obliquely arranged in the machine case.
In order to promote the flow field, connect through the guide duct between the first air outlet of first ternary fan and the second air intake (423) of second ternary fan.
Compared with the prior art, the invention has the advantages that: when the range hood does not work, the filter screen and the fan system which can hide greasy dirt are closed by the fume blocking screen, so that the range hood is kept clean and tidy, and the kitchen environment is obviously improved; when the range hood works, the smoke baffle can be opened to drain the air around the shell, so that the airflow passing through the outer rectifying layer can be effectively split, rectified and guided, turbulence and turbulence in the airflow are reduced, smooth airflow is formed, namely, the smoke collection area of the shell is increased, and the smoke exhaust effect of the range hood can be better improved; the adopted automatic opening and closing driving mechanism and transmission mechanism can enable the smoke blocking screen to flexibly lift and rotate to be abutted according to the shell panel, so that the control is more convenient and quick, and the sealing effect is better; by adopting two ternary fans, the structure of the fan is compact, the size is relatively small, the fan efficiency and the wind pressure are high, the generated negative pressure gradient is large, the smoking efficiency can be greatly improved, and the two ternary fans still have smaller sizes in a serial combination mode through the ternary fans with small sizes, so that the range hood does not need to change the existing size, and the installation is not limited by the floor level; because the ternary fan is thinner, place 2 ternary fans in the wind channel, and first level ternary fan is close the air intake, be unfavorable for the air current air inlet, and movable panel is automatic to stretch out at smoke ventilator during operation for the negative pressure moves down, increases the regional volume of drawing in the cigarette of first level fan, can commutate effectively with the guide air current, reduces turbulent flow and the turbulent flow in the air current, forms smooth-going air current, reduces the swirl of air current in first level fan air intake junction.
Drawings
Fig. 1 is a schematic view of a first embodiment of a range hood according to the present invention;
fig. 2 is a schematic view illustrating an opened state of a smoke screen of the range hood of fig. 1;
fig. 3 is a side sectional view of the range hood of fig. 1;
fig. 4 is a front cross-sectional view (concealing the outlet hood) of the range hood of fig. 1;
fig. 5 is an exploded view of the range hood of fig. 1;
fig. 6 is a partial structural schematic view of the range hood of fig. 1;
FIG. 7 is a partially exploded view of FIG. 6;
fig. 8 is a sectional view of a second embodiment of the range hood of the present invention;
fig. 9 is an exploded view of the range hood of fig. 8;
fig. 10 is a sectional view of a third embodiment of the range hood of the present invention;
fig. 11 is an exploded view of the range hood of fig. 10.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
Referring to fig. 1 to 7, a near-suction type range hood includes a housing 1 and a cabinet 2 disposed above the housing 1, and hereinafter, for convenience of description, "front", "rear", "left", "right", "up", "down" refer to the direction of a user relative to the range hood when the range hood is in use, and are not limited in structure.
In the present embodiment, the housing 1 includes the first side plates 11 on the left and right sides, and the front end surfaces of the first side plates 11 are inclined gradually rearward (inclined from the horizontal direction) from top to bottom so as to be inclined toward the front side of the user. A top plate 12 is provided at the top end between the two first side plates 11, and a rear side plate 13 is provided at the rear end between the two first side plates 11. The chassis 2 includes four second side plates 21, and an air duct 25 through which the oil smoke passes is formed between the second side plates 21.
A panel 14 is disposed between the front ends of the two first side plates 11, the panel 14 includes an inner panel 142, and an outer panel 143 surrounding the outer periphery of the inner panel 142 to form a frame, and an opening 141 is formed in the inner panel 142 to form an air inlet of the range hood, preferably, the air inlet is located in the center of the inner panel 142. The inner panel 142 is recessed inwardly of the housing 1 relative to the outer panel 143, and the outer edge of the inner panel 142 and the inner edge of the outer panel 143 are closed in the middle, and both the inner panel 142 and the outer panel 143 are planar.
The upper part of the front side of the panel 14 is provided with a smoke shielding screen 15, the lower part is provided with a baffle 18, the whole formed by the smoke shielding screen 15 and the baffle 18 is matched with the shape and the size of an outer panel 143, a certain angle is formed between the smoke shielding screen 15 and the inner panel 142 when the range hood works, and oil smoke enters the shell 1 from an air inlet after passing through the interval between the smoke shielding screen 15 and the inner panel 142. The panel 14 and the smoke barrier 15 are inclined at an angle to the horizontal, the baffle 18 may be flush with the outer panel 143, and the smoke barrier 15 corresponds to at least part of the air intake.
Preferably, the smoke barrier 15 is rotatably connected to the upper portion of the panel 14 and rotatable relative to the panel 14, and the baffle 18 is fixedly connected to the panel 14. The smoke screen 15 is rotatably connected with the panel 14 through a driving mechanism 151 and a transmission mechanism 152. Preferably, the driving mechanism 151 is an electric push rod, and is disposed in the housing 1 on one of the left and right sides corresponding to the smoke barrier 15. The transmission mechanism 152 includes a first connection base 1521, a second connection base 1522, a connecting rod 1523, and a support 1524, wherein a combination of the first connection base 1521, the second connection base 1522, the connecting rod 1523, and the support 1524 has two groups. The inner panel 142 has a through groove 1421 formed on both left and right sides thereof, and the through groove 1421 extends in the up-down direction. In each group, one end of the first connecting seat 1521 is fixedly connected to one side of the smoke shielding screen 15 facing the inside of the housing 1, the other end of the first connecting seat 1521 is rotatably connected to one end of the connecting rod 1523, and the other end of the connecting rod 1523 is rotatably connected to the support 1524 through the through groove 1421, wherein the support 1524 is fixed to the inner side of the inner panel 14 facing the inside of the housing 1 and adjacent to the through groove 1421. One end of the second connecting seat 1522 is fixedly connected to the side of the smoke screen 15 facing the inside of the housing 1, and the other end extends to the inside of the panel 14 through the through groove 1421. The second connection seat 1522 is located below the first connection seat 1521.
The transmission mechanism 152 further comprises a transmission rod 1525, wherein one end of one second connecting seat 1522 extending into the inner side of the panel 14 is rotatably connected with one end of the transmission rod 1525, and the other end of the transmission rod 1525 is connected with the output end of the driving mechanism 151, so that the driving mechanism 151 can drive the transmission mechanism 152 to act, thereby opening or closing the smoke screen 15. The end of the other second connector 1522 that extends into the panel 14 is the free end.
When the range hood works, the driving mechanism 151 is started, one end, connected with the driving mechanism 151, of the transmission rod 1525 is pushed forward, at the moment, one end, connected with the second connecting seat 1522, of the transmission rod 1525 is pushed forward, therefore, the second connecting seat 1522 moves upwards in the through groove 1421 and rotates forward at the same time, the first connecting seat 1521 moves upwards relative to the support 1524 and rotates forward, the smoke blocking screen 15 gradually leaves the panel 14 and rotates upwards to be opened, when the smoke blocking screen 15 is opened to a certain angle, the driving mechanism 151 stops working, at the moment, the smoke blocking screen 15 keeps in an open state at a certain angle, and oil smoke can enter the shell 1. When the range hood stops working, the driving mechanism 151 runs reversely, the smoke blocking screen 15 moves downwards and rotates backwards to be pulled back to be close to the inner panel 142, at the moment, the air inlet is closed by the smoke blocking screen 15, and preferably, the smoke blocking screen 15 is flush with the outer panel 143 into a whole.
Through the smoke blocking screen 15, when the smoke blocking screen 15 is opened, the smoke blocking screen 15 can flexibly translate and rotationally lean against according to the size of the included angle on the front side of the shell 1, the smoke blocking screen 15 is opened more conveniently and more conveniently, the sealing effect is better, the smoke gathering area is larger, and the smoke gathering capacity is strong; when the kitchen ventilator is closed, the filter screen and the fan with greasy dirt can be hidden, so that the kitchen ventilator is clean and tidy, is convenient to clean, can prevent the smell of the lampblack, and has obvious improvement effect on the kitchen air environment.
The filter screen 16 is arranged in the shell 1, and the filter screen 16 can be arranged corresponding to the opening 141 of the shell 1 or can be arranged at the air inlet of the fan system 4. A bottom plate 17 is connected between the bottom of the housing 1, the bottom of the rear side plate 13 and the bottom of the face plate 14. The first side panel 11, top panel 12, rear side panel 13, face panel 14, smoke guide panel 15 and bottom panel 17 together define a cavity within the housing 1.
In this embodiment, a fan system 4 is disposed in the chassis 2, and preferably, the fan system 4 is a three-way fan, and the three-way fan can be in the prior art, as disclosed in chinese patent with application No. 201310418009. The fan system 4 can be a single ternary fan, two ternary fans connected in parallel or two ternary fans connected in series, and the ternary fans have the characteristics of compact structure, relatively small size, high fan efficiency and high wind pressure, so that the negative pressure gradient can be generated, and the smoking efficiency can be greatly improved. The specific structure of the fan system 4 will be described in detail below. An air outlet cover 5 connected with an air outlet of the fan system 4 is arranged above the case 2, so that the oil smoke can be discharged into a public flue through the air outlet cover 5.
Referring to fig. 2 to 4, the fan system 4 includes two independently operable first and second three-way fans 41 and 42, which are disposed in series. By using the ternary impeller, compared with a centrifugal fan, the flow efficiency can be greatly increased, and the air quantity can be improved.
The first tertiary fan 41 includes a first scroll 411 and a first tertiary impeller 412 disposed within the first scroll 411, and the second tertiary fan 42 includes a second scroll 421 and a second tertiary impeller 422 disposed within the second scroll 421. The first volute 411 is provided with a first air inlet 413, the second volute 421 is provided with a second air inlet 423, the top end of the first volute 411 is provided with a first air outlet 414, and the top end of the second volute 421 is provided with a second air outlet 424.
The first and second three-way impellers 412, 422 may be configured as disclosed in the applicant's application number 201620102790.9, and each three-way impeller may be independent and have independent first and second drive motors 431, 432, respectively.
The first ternary fan 41 (as a first stage fan) and the second ternary fan 42 (as a second stage fan) are respectively independent of each other and are horizontally arranged, i.e. the air inlets of the two ternary fans are downward. The second tertiary fan 42 is located above the first tertiary fan 41, and the two tertiary fans are arranged at intervals. When the fume enters from the fume collecting hood 1, the fume passes through the first three-way fan 41 (upstream of the fume flow path) and the second three-way fan 42 (downstream of the fume flow path) in sequence. The first air outlet 414 of the first ternary fan 41 and the second air inlet 423 of the second ternary fan 42 are open, that is, the first air outlet 414 and the second air inlet 423 are not connected through an air guide pipe, the first air outlet 414 directly discharges the oil smoke into the air duct 25 in the case 2, and the second air inlet 423 sucks the oil smoke from the air duct 25 in the case 2.
The first tertiary air blower 41 and the second tertiary air blower 42 are disposed corresponding to each other, and the first air inlet 413 of the first tertiary air blower 41 and the second air inlet 423 of the second tertiary air blower 42 may correspond to each other (coaxially or in the same vertical direction), and the second air outlet 414 of the first tertiary air blower 41 and the second air outlet 424 of the second tertiary air blower 42 may also correspond to each other (coaxially or in the same vertical direction). The first air inlet 413 and the second air inlet 423 are kept at a certain distance, and the ratio of the distance between the two to the diameter of the first ternary impeller 412 or the second ternary impeller 422 (the two ternary impellers are the same) is 0.2-1. The proper distance is kept between the two stages of fans, so that the outlet airflow of the first stage of fan can be fully diffused, dynamic pressure is converted into static pressure, and the static pressure enters the second stage of fan; but also cannot be far away, otherwise the meaning of the series connection of the double fans is lost.
Alternatively, the first ternary fan 41 (as a first stage fan) and the second ternary fan 42 (as a second stage fan) are arranged in a staggered manner, that is, the first volute 411 and the second volute 412 are opposite, the first air inlet 413 of the first ternary fan 41 is close to the right side, the second air inlet 423 of the second ternary fan 42 is close to the left side, the second air outlet 414 of the first ternary fan 41 is close to the left side, and the second air outlet 424 of the second ternary fan 42 is close to the right side, and at this time, the first air outlet 414 of the first ternary fan 41 corresponds to or is close to the second air inlet 423 of the second ternary fan 42 in the vertical direction. The distance between the first air inlet 413 and the second air inlet 423 is a distance in the vertical direction.
The first air inlet 413 of the first ternary fan 41 is kept at a certain distance from the inlet of the air duct 25, the distance between the first air inlet 413 and the inlet is 1-2 times of the diameter of the first ternary impeller 412, the distance between the center of the first ternary impeller 412 and the inlet of the air duct 25 is required to be larger than the diameter of the first ternary impeller 412, the situation that oil smoke enters the fan system 4 after being rectified by the filter screen 16 and not passing through enough flow channels is avoided, a certain rectifying effect is ensured, but the oil smoke cannot be larger than 2 times of the diameter, or the distance between the oil smoke and the negative pressure area is too far.
The mode of series arrangement realizes direct suction and discharge of the lampblack, improves static pressure and improves the effect of the range hood; the two-stage fans are used for filtering, so that the filtering effect is improved, and the oil separation degree is improved; the two stages of fans are connected in series, the rotating speed of each stage of fan is not required to be high, and noise can be effectively reduced. The whole machine height of the double fans can be close to or lower than the inclined height of the single fan, and the effect of the range hood is improved by times.
Example two
Referring to fig. 8 and 9, in the present embodiment, the difference from the first embodiment described above is that the first tertiary air mover 41 is disposed in a cavity formed by the housing 1 and the casing 2 together, the first air intake 413 of the first tertiary air mover 41 is directed forward and is disposed in a cavity formed by the housing 1 and the casing 2 obliquely from the horizontal direction, i.e., the first tertiary air mover 41 is partially disposed in the housing 1 and the rest is disposed in the casing 2. The first ternary fan 41 is arranged in such a way, not only has a shorter flow channel (close to the air inlet of the range hood), but also is close to the air outlet pipeline, so that the eddy current loss generated by air flow separation in the first ternary impeller 412 of the first ternary fan 41 is greatly reduced, and the impeller efficiency is improved.
The fan formed by the series connection mode is low in overall height, and the static pressure at the outlet of the fan is large, so that the resistance of a high-layer pipeline is overcome, and in addition, the problem of limited floor layer height is solved due to the small volume and large air quantity of the ternary fan.
The double fans are connected in series, so that the horizontal layout at the upper end reduces the height of the whole machine while ensuring the negative pressure of the air inlet of the range hood, and the range hood can be applied to more kitchen scenes.
Example III
Referring to fig. 10 and 11, in the present embodiment, the difference from the second embodiment is that the second tertiary fan 42 is also disposed in the chassis 2 in an inclined manner, that is, the first air inlet 413 of the first tertiary fan 41 is inclined downward with respect to the horizontal direction, and the second air inlet 423 of the second tertiary fan 42 is inclined downward with respect to the horizontal direction.
The first air outlet 414 of the first ternary fan 41 is connected with the second air inlet 423 of the second ternary fan 42 through an air guide pipe 46.
The fan formed by the oblique serial connection mode further reduces the whole volume, and the negative pressure area moves downwards, thereby improving the effect of the range hood.
Claims (8)
1. The utility model provides a near-suction type range hood, includes casing (1) and fan system (4), casing (1) are panel (14) that inclines including being located the front end with the horizontal direction, offer opening (141) on panel (14) and become the air intake of range hood, its characterized in that: the fan system (4) comprises a first ternary fan (41) and a second ternary fan (42) which are arranged in series, a smoke blocking screen (15) is arranged on the front side of the panel (14), and the smoke blocking screen (15) is rotationally connected with the upper part of the panel (14), so that the smoke blocking screen (15) can rotate outwards to open an air inlet of the range hood or rotate inwards to close the air inlet of the range hood;
the smoke blocking device further comprises a driving mechanism (151) and a transmission mechanism (152) which are used for driving the smoke blocking screen (15) to act, wherein the driving mechanism (151) is arranged in the shell (1), the transmission mechanism (152) is connected with the smoke blocking screen (15), and the driving mechanism (151) drives the smoke blocking screen (15) to automatically open and close through the transmission mechanism (152);
the left side and the right side of the panel (14) are respectively provided with a through groove (1421), and the through grooves (1421) extend in the up-down direction; the transmission mechanism (152) comprises two groups of combinations consisting of a first connecting seat (1521), a second connecting seat (1522), a connecting rod (1523) and a support (1524), and the combinations are respectively arranged at the left side and the right side of the smoke shielding screen (15); in each group, one end of the first connecting seat (1521) is fixedly connected with one side of the smoke shielding screen (15) facing the inside of the shell (1), the other end of the first connecting seat is rotatably connected with one end of the connecting rod (1523), the other end of the connecting rod (1523) penetrates through the through groove (1421) to be rotatably connected with the support (1524), the support (1524) is fixedly arranged on the inner side of the panel (14) facing the inside of the shell (1), one end of the second connecting seat (1522) is fixedly connected with one side of the smoke shielding screen (15) facing the inside of the shell (1), the other end of the second connecting seat (1522) penetrates through the through groove (1421) to extend to the inner side of the panel (14), and the second connecting seat (1522) is positioned below the first connecting seat (1521); the driving mechanism (151) is used for driving one of the second connecting seats (1522) to act.
2. The near suction type range hood according to claim 1, wherein: the driving mechanism (151) is an electric push rod and is arranged on one side of the left side and the right side in the shell (1), the transmission mechanism (152) further comprises a transmission rod (1525), one end of one second connecting seat (1522) extending into the inner side of the panel (14) is rotationally connected with one end of the transmission rod (1525), and the other end of the transmission rod (1525) is connected with the output end of the driving mechanism (151).
3. The near suction type range hood according to claim 1 or 2, wherein: the first ternary fan (41) comprises a first ternary impeller (412) and a first air inlet (413), the second ternary fan (42) comprises a second ternary impeller (422) and a second air inlet (423), on the oil smoke flow path, the second air inlet (423) is located at the downstream of the first air inlet (413), and the first air inlet (413) and the second air inlet (423) face the same direction.
4. A near suction range hood according to claim 3, wherein: the diameters of the first ternary impeller (412) and the second ternary impeller (422) are the same, and the ratio of the distance between the first air inlet (413) and the second air inlet (423) to the diameter of the first ternary impeller (412) is 0.2-1.
5. A near suction range hood according to claim 3, wherein: the first air inlet (413) and the second air inlet (423) are arranged downwards in a horizontal mode, the distance between the first air inlet (413) of the first ternary fan (41) and the inlet of the air duct (25) is 1-2 times of the diameter of the first ternary impeller (412), and the distance between the center of the first ternary impeller (412) and the inlet of the air duct (25) is larger than the diameter of the first ternary impeller (412).
6. A near suction range hood according to claim 3, wherein: the novel air conditioner is characterized in that a case (2) is arranged above the shell (1), the first air inlet (413) is obliquely downwards arranged in a cavity formed by the shell (1) and the case (2), and the second air inlet (423) is downwards arranged in the case (2) horizontally by the second ternary fan (42).
7. A near suction range hood according to claim 3, wherein: the novel air conditioner is characterized in that a case (2) is arranged above the shell (1), the first air inlet (413) is obliquely downwards arranged in a cavity formed by the shell (1) and the case (2), and the second air inlet (423) is obliquely downwards arranged in the case (2) so that the second ternary fan (42) is obliquely arranged in the case (2).
8. The near suction type range hood according to claim 7, wherein: the first air outlet (414) of the first ternary fan (41) is connected with the second air inlet (423) of the second ternary fan (42) through an air guide pipe (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710923585.8A CN109595629B (en) | 2017-09-30 | 2017-09-30 | Near-suction type range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710923585.8A CN109595629B (en) | 2017-09-30 | 2017-09-30 | Near-suction type range hood |
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| Publication Number | Publication Date |
|---|---|
| CN109595629A CN109595629A (en) | 2019-04-09 |
| CN109595629B true CN109595629B (en) | 2024-01-16 |
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| CN201710923585.8A Active CN109595629B (en) | 2017-09-30 | 2017-09-30 | Near-suction type range hood |
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|---|---|---|---|---|
| CN110043936B (en) * | 2019-04-29 | 2024-01-16 | 宁波方太厨具有限公司 | Side-suction type range hood |
| CN110195883A (en) * | 2019-05-21 | 2019-09-03 | 佛山市顺德区美的洗涤电器制造有限公司 | Side-suction type range hood |
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| CN109595629A (en) | 2019-04-09 |
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