CN110186082B - Side-suction type range hood - Google Patents
Side-suction type range hood Download PDFInfo
- Publication number
- CN110186082B CN110186082B CN201910373349.2A CN201910373349A CN110186082B CN 110186082 B CN110186082 B CN 110186082B CN 201910373349 A CN201910373349 A CN 201910373349A CN 110186082 B CN110186082 B CN 110186082B
- Authority
- CN
- China
- Prior art keywords
- motor
- range hood
- end cover
- volute
- fan
- 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.)
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- 239000000779 smoke Substances 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 7
- 230000006978 adaptation Effects 0.000 claims 1
- 239000006185 dispersion Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 7
- 239000003517 fume Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010411 cooking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007306 turnover Effects 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Abstract
The invention discloses a side-draught range hood, which comprises a shell and a fan arranged in the shell, wherein the shell comprises a back plate positioned at the rear side, and the fan comprises a volute, an impeller arranged in the volute and a motor for driving the impeller to rotate, and is characterized in that: the back plate is provided with air holes for air outside the range hood to enter the shell, and the fan is provided with an air flow passage for air to enter the fan from the position between the rear side of the volute and the back plate so as to accelerate the air around the motor to flow. Compared with the prior art, the invention has the advantages that: through setting up the air current passageway between the range hood inside and outside, and the air current passageway between spiral case outside and the impeller inside, can make the outside air strengthen the flow of motor surrounding air to strengthen motor heat dispersion, reduce the motor temperature rise.
Description
Technical Field
The invention relates to oil fume purifying equipment, in particular to a side-suction type range hood.
Background
The range hood has become one of the indispensable kitchen appliances in modern families. The conventional range hood comprises a top suction type range hood and a side suction type range hood, wherein the top suction type range hood utilizes the principle of rising hot air to suck and discharge the naturally rising oil smoke generated during cooking, and has wider application due to the advantages of neatness, light weight, small occupied space and the like. The side-draft type range hood utilizes the vortex wind pressure principle to absorb most of oil smoke which is nearer to the cooking bench in an arc line mode, so that adverse effects on human health can be reduced, and the power source is nearer to the cooking bench, so that the suction effect of the power source is basically not reduced.
The top-draft type range hood comprises a fume collecting hood with a fume suction port, a wind cabinet arranged at the upper part of the fume collecting hood, and a fan arranged in the wind cabinet and provided with a volute, wherein the air in the wind cabinet is exhausted and negative pressure is formed at the same time by the action of the fan, so that external fume is sucked into the wind cabinet of the cabinet, and the purpose of fume suction is realized; the utility model provides a side-draft range hood, a smooth and easy side-draft range hood of smoke guide of chinese patent publication as the application number 201520377321.3, it includes casing and divides air outlet subassembly, the oil collecting tank of locating casing top, bottom to and divide and locate in the casing upper portion, fan subassembly, the oil guide plate in the casing lower part, fan subassembly includes the spiral case, is fixed in the fan in the spiral case, and the casing openly has the business turn over board of taking the inlet flue in its lower part.
In both the top-suction type and side-suction type range hoods, a motor is required to provide power to drive an impeller to form a negative pressure area, so that oil smoke is sucked into the range hood from the outside. In the running process of the motor, the temperature rise problem inevitably exists, which can lead to the performance reduction of the motor and influence the service life of the motor. This problem is also a number one challenge for the skilled person.
At present, a motor temperature rise method is not well solved, and the common solution is to solve the motor temperature rise problem by means of adjusting motor parameters by a motor manufacturer. However, when the temperature rise of the motor sample sent by the motor factory does not reach the standard, the motor sample needs to be communicated with the motor factory for multiple times in general, and the motor factory is improved for multiple times, so that the motor meeting the performance requirements can be obtained, and the manpower, material resources and financial resources are very consumed; even if the temperature rise of the motor samples sent by the motor factory reaches the standard, more temperature rises still can appear in the mass-produced motors, which cannot reach the standard.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides a side-suction type range hood which can enhance the heat dissipation performance of a motor, reduce the temperature rise of the motor and prolong the service life of the motor.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a side-draught range hood, includes the casing and sets up the fan in the casing, the casing is including the backplate that is located the rear side, the fan includes spiral case, sets up impeller in the spiral case to and be used for driving impeller pivoted motor, its characterized in that: the back plate is provided with air holes for air outside the range hood to enter the shell, and the fan is provided with an air flow passage for air to enter the fan from the position between the rear side of the volute and the back plate so as to accelerate the air around the motor to flow.
Preferably, the motor comprises a motor main body, a motor rear end cover and a motor front end cover, wherein the motor rear end cover and the motor front end cover are arranged front and back, and the motor main body is positioned in the motor rear end cover and the motor front end cover.
For the installation of the motor of being convenient for, the motor still includes the shirt rim, the shirt rim sets up at the holistic periphery that motor rear end cover and motor front end cover constitute to it is radial outside outstanding cyclic annular, set up the mounting hole that supplies the motor to pass on the back shroud of spiral case, the shirt rim is located the back shroud front side of spiral case, and is fixed with back shroud connection.
Preferably, in order to facilitate the air flow entering the volute, the volute of the fan comprises a back cover plate, the air flow passage comprises a mounting gap between the motor and the volute, and the mounting gap comprises a gap H1 between the skirt edge and the back cover plate of the volute in the motor shaft direction and a gap H2 between the motor back end cover and the inner periphery of a mounting hole of the back cover plate in the motor radial direction.
In order to avoid affecting the flow of gas in the gap and the normal use of the range hood, the range of values of H1 and H2 is as follows: 1.5mm < H1<15mm,1.0mm < H2<12mm.
In order to strengthen the air flow around the motor rear end cover, the air holes are opposite to the motor rear end cover of the motor.
In order to avoid affecting the normal use of the range hood or playing a role, the total area of the ventilation holes is A, and the value range of A is as follows: 0.012 x 3.14 x D < a <0.3 x 3.14 x D, wherein D is the diameter of the motor rear end cap.
In order to facilitate the discharge of gas through the impeller, the impeller comprises a front disc, a rear disc and a plurality of blades arranged between the front disc and the rear disc, and the rear disc is provided with through holes.
Preferably, on the basis of ensuring the normal operation of the impeller, as much gas as possible is allowed to pass through, the total area of the through holes is B, and B>90mm 2 。
For avoiding receiving the oil smoke interference, the spiral case of fan includes front shroud and back shroud, the casing still includes the roof that is located the top, the back shroud has the kink that is located the bottom towards the front shroud direction kink, kink and backplate paste tightly, the top of back shroud then with the roof pastes tightly.
Compared with the prior art, the invention has the advantages that: through setting up the air current passageway between the range hood inside and outside, and the air current passageway between spiral case outside and the impeller inside, can make the outside air strengthen the flow of motor surrounding air to strengthen motor heat dispersion, reduce the motor temperature rise.
Drawings
Fig. 1 is a schematic view of a side-suction type range hood according to an embodiment of the present invention;
fig. 2 is a sectional view of a side-suction type range hood according to an embodiment of the present invention;
fig. 3 is a schematic view of a part of a housing of a side-suction type range hood according to an embodiment of the present invention;
fig. 4 is a schematic view of a blower of a side-suction type range hood according to an embodiment of the present invention;
fig. 5 is a cross-sectional view of a blower of a side-suction type range hood according to an embodiment of the present invention;
FIG. 6 is an enlarged schematic view of portion I of FIG. 5;
fig. 7 is a schematic view of a rear cover plate of a volute of a blower of a side-draft range hood according to an embodiment of the present invention;
fig. 8 is a schematic view of a motor of a side-suction type range hood according to an embodiment of the present invention;
fig. 9 is a schematic diagram showing the installation states of an impeller and a motor of a fan of a side-suction type range hood according to an embodiment of the present invention;
fig. 10 is a schematic view of the rear disk of the impeller of fig. 9.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
Referring to fig. 1 to 3, a side-suction type range hood includes a housing 1, a panel 2 obliquely disposed at a front side of the housing 1. The panel 2 is provided with an air inlet 21, and a smoke baffle 3 with the size matched with that of the air inlet 21 is rotatably arranged on the panel 2, so that the air inlet 21 can be opened or closed by rotating relative to the panel 2.
A fan 4 is provided in the housing 1, and the fan 4 includes a scroll 41, an impeller 42 provided in the scroll 41, and a motor 43 for driving the impeller 42 to rotate. An oil guide plate (not shown) may be disposed between the scroll case 41 and the panel 2, and an air inlet formed in the scroll case 41 and the oil guide plate corresponds to the air inlet 21 formed in the panel 2.
The housing 1 comprises a back plate 11 at the rear side and a top plate 12 at the top, in which embodiment the back plate 11 may also be integrally formed with the top plate 12. The rear bottom of the scroll 41 abuts against the back plate 11.
Referring to fig. 2 to 10, the blower 4 is disposed obliquely, such as preferably in accordance with the direction of inclination of the panel 2. The scroll 41 includes a front cover 411, a rear cover 412, and an annular wall 413 connected between the front cover 411 and the rear cover 412, and the rear cover 412 is fixedly connected to the back plate 11 through a bracket 414. And the back cover 412 has a bent portion 4121 at the bottom, bent from top to bottom toward the front cover 411, which can be abutted against the back plate 11, and the top of the back cover 412 is abutted against the top plate 12, thereby closing the area between the rear side of the scroll 41 and the housing 1.
The motor 43 includes a motor body 431, a motor rear end cap 432, a motor front end cap 433, and a skirt 434. The motor rear end cover 432 and the motor front end cover 433 are disposed back and forth in the axial direction, and the motor main body 431 is located inside the motor rear end cover 432 and the motor front end cover 433. A skirt 434 may be provided on the outer periphery of the motor rear end cover 432 and the motor front end cover 433 as a whole, and it is in the shape of a ring protruding radially outward, and the skirt 434 is for attachment to the rear cover 412 of the scroll case 41. The rear cover plate 412 of the scroll casing 41 is provided with a mounting hole 4122 through which the motor 43 passes. Bolts may be threaded through the outer periphery of mounting holes 4122 of back plate 412 to be in tight locking with skirt 434.
In order to form effective air flow around the motor 43, the back plate 11 is provided with a plurality of ventilation holes 111 at positions opposite to the rear end cover 432 of the motor, the total area of the ventilation holes 111 is A, if the A value is too small, the A value can affect the normal use of the range hood or can not play a role, such as poor rigidity of the back plate 11 of the shell 1, less effective air flow around the motor 43, and the like. Thus, preferably, the a range is: 0.012 x 3.14 x D < a <0.3 x 3.14 x D, where D is the diameter of the motor rear end cap 432. In this embodiment, the ventilation holes 111 are preferably circular holes having a diameter of 5 mm. Thus, the air flow outside the range hood may enter the space between the rear cover 412 of the scroll case 41 and the housing 1 through the airing holes 111.
The motor 43 is mounted to the impeller 42 through a back cover plate 412 of the volute 41. The skirt 434 of the motor 43 is located on the front side of the back plate 412 of the volute 41 (within the volute 41). The motor 43 and the scroll case 41 have a mounting gap therebetween through which the air flow passes, and the gap between the skirt 43 and the rear cover 412 (parallel to each other) of the scroll case 41 in the axial direction of the motor 43 (the distance between the surfaces adjacent to each other) is H1, and the gap between the motor rear cover 432 and the inner periphery of the mounting hole 4122 of the rear cover 412 of the scroll case 41 in the radial direction of the motor 43 (the distance between the surfaces adjacent to each other) is H2. If the values of H1 and H2 are too small, the gas flowing in the gap can be influenced, and if the values are too large, the normal use of the range hood can be influenced, for example, the range hood effect can be poor, the shaking of the whole range hood can be aggravated, the noise can be increased, and the like. Thus, preferably, 1.5mm < H1<15mm,1.0mm < H2<12mm. Thus, the air flow entering between the rear side of the scroll casing 41 and the casing 1 can enter the fan 4 through the above-described installation gap between the motor rear end cover 432 and the inner periphery of the installation hole 4122 of the scroll casing, and the installation gap between the skirt 434 and the rear cover 412 of the scroll casing 41 in order.
The impeller 42 includes a front plate 421, a rear plate 422, and a plurality of blades 423 disposed between the front plate 421 and the rear plate 422, with the middle of the rear plate 422 for mounting the motor 43. The rear plate 422 is provided with a plurality of through holes 4221, and the through holes 4221 may be arranged at intervals in the circumferential direction. The total area of the through holes 4221 is B, which is preferably B under the condition of ensuring the normal operation of the impeller 42>90mm 2 And the larger the value, the better. Thereby, the air flow entering from the installation gap between the rear cover 412 of the scroll 41 and the motor 43 can enter the impeller 42 through the through hole 4221, and then be discharged from the scroll 41 to the outside. The mounting gap between the rear cover plate 412 of the scroll case 41 and the motor 43 and the through hole 4221 in the rear plate 422 constitute an air flow path through which the cooling air enters the blower 4 to be discharged.
When the range hood works normally, the motor 43 drives the impeller 42 to rotate, and gas is sucked into the volute 41 and then discharged out of the room. In this process, a trace amount of air flow outside the range hood flows into the casing 1 through the ventilation holes 111 of the back plate 11, then flows into the volute 41 through the installation gap between the volute 41 and the motor 43, then flows into the impeller 42 through the rear plate 422 of the impeller 42, and the air flow is discharged outside in the process of rotating the impeller 42. Such air flow allows a small amount of air flow around the motor rear end cover 432, thereby accelerating the flow of air around the motor rear end cover 432, enhancing the heat dissipation performance of the motor 43, and reducing the temperature rise of the motor 43.
Claims (10)
1. The utility model provides a side-draught range hood, includes casing (1), sets up panel (2) at casing (1) front side, smoke baffle (3) and fan (4) of setting in casing (1) obliquely, casing (1) are including backplate (11) that are located the rear side, air intake (21) have been seted up on panel (2), smoke baffle (3) and air intake (21) size adaptation and rotationally set up on panel (2), smoke baffle (3) are through thereby opening or closing air intake (21) relative panel (2) rotation; the fan (4) comprises a volute (41), an impeller (42) arranged in the volute (41) and a motor (43) for driving the impeller (42) to rotate, and is characterized in that: the back plate (11) is provided with an air vent (111) for air flow outside the range hood to enter the shell (1), and the fan (4) is provided with an air flow passage for air flow to enter the fan (4) from the rear side of the volute (41) and between the back plate (11) so as to accelerate air flow around the motor (43).
2. The side-suction type range hood according to claim 1, wherein: the motor (43) comprises a motor main body (431), a motor rear end cover (432) and a motor front end cover (433), wherein the motor rear end cover (432) and the motor front end cover (433) are arranged front and back, and the motor main body (431) is positioned in the motor rear end cover (432) and the motor front end cover (433).
3. The side-suction type range hood according to claim 2, wherein: the motor (43) further comprises a skirt edge (434), the skirt edge (434) is arranged on the whole periphery formed by the motor rear end cover (432) and the motor front end cover (433) and is in a ring shape protruding outwards in the radial direction, a mounting hole (4122) for the motor (43) to penetrate through is formed in the rear cover plate (412) of the volute (41), and the skirt edge (434) is located on the front side of the rear cover plate (412) of the volute (41) and is fixedly connected with the rear cover plate (412).
4. A side-draft range hood according to claim 3 wherein: the volute (41) of the fan (4) comprises a rear cover plate (412), the airflow passage comprises a mounting gap between the motor (43) and the volute (41), the mounting gap comprises a gap H1 between the skirt edge (434) and the rear cover plate (412) in the axial direction of the motor (43), and a gap H2 between the motor rear end cover (432) and the inner periphery of a mounting hole (4122) of the rear cover plate (412) in the radial direction of the motor (43).
5. The side-suction type range hood according to claim 4, wherein: the range of values of H1 and H2 is as follows: 1.5mm < H1<15mm,1.0mm < H2<12mm.
6. The side-suction type range hood according to claim 2, wherein: the ventilation holes (111) are opposite to a motor rear end cover (432) of the motor (43).
7. The side-suction type range hood according to claim 6, wherein: the total area of the ventilation holes (111) is A, and the value range of A is as follows: 0.012 x 3.14 x D < a <0.3 x 3.14 x D, wherein D is the diameter of the motor rear end cap (432).
8. The side-suction type range hood according to claim 4, wherein: the impeller (42) comprises a front disc (421), a rear disc (422) and a plurality of blades (423) arranged between the front disc (421) and the rear disc (422), and through holes (4221) are formed in the rear disc (422).
9. The side-suction type range hood according to claim 8, wherein: the total area of the through holes (4221) is B, and B>90mm 2 。
10. The side-suction type range hood according to claim 1, wherein: the spiral case (41) of fan (4) include preceding apron (411) and back shroud (412), casing (1) still includes roof (12) that are located the top, back shroud (412) have the kink (4121) that is located the bottom towards preceding apron (411) direction kink, kink (4121) paste tightly with backplate (11), the top of back shroud (412) then with roof (12) paste tightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910373349.2A CN110186082B (en) | 2019-05-07 | 2019-05-07 | Side-suction type range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910373349.2A CN110186082B (en) | 2019-05-07 | 2019-05-07 | Side-suction type range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110186082A CN110186082A (en) | 2019-08-30 |
| CN110186082B true CN110186082B (en) | 2024-01-23 |
Family
ID=67715731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910373349.2A Active CN110186082B (en) | 2019-05-07 | 2019-05-07 | Side-suction type range hood |
Country Status (1)
| Country | Link |
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| CN (1) | CN110186082B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377428B (en) * | 2020-10-30 | 2021-11-26 | 宁波方太厨具有限公司 | Fan system, range hood applying fan system and installation method of range hood |
| CN112855574B (en) * | 2021-01-11 | 2021-10-12 | 宁波方太厨具有限公司 | Fan system and range hood with same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1409050A (en) * | 2001-09-21 | 2003-04-09 | 富士工业(株) | Fume exhaust fan |
| CN202328458U (en) * | 2011-12-15 | 2012-07-11 | 邻水县宏远电器有限公司 | Light range hood |
| EP2602489A2 (en) * | 2011-12-09 | 2013-06-12 | BSH Bosch und Siemens Hausgeräte GmbH | Fan device, household appliance and method for cooling a motor of a fan device |
| CN103697512A (en) * | 2013-11-30 | 2014-04-02 | 宁波方太厨具有限公司 | Silent range hood |
| CN106482187A (en) * | 2016-11-11 | 2017-03-08 | 宁波方太厨具有限公司 | A kind of noise reduction impeller and application have the range hood of this impeller |
| CN210662977U (en) * | 2019-05-07 | 2020-06-02 | 宁波方太厨具有限公司 | Side-draft range hood |
-
2019
- 2019-05-07 CN CN201910373349.2A patent/CN110186082B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1409050A (en) * | 2001-09-21 | 2003-04-09 | 富士工业(株) | Fume exhaust fan |
| EP2602489A2 (en) * | 2011-12-09 | 2013-06-12 | BSH Bosch und Siemens Hausgeräte GmbH | Fan device, household appliance and method for cooling a motor of a fan device |
| CN202328458U (en) * | 2011-12-15 | 2012-07-11 | 邻水县宏远电器有限公司 | Light range hood |
| CN103697512A (en) * | 2013-11-30 | 2014-04-02 | 宁波方太厨具有限公司 | Silent range hood |
| CN106482187A (en) * | 2016-11-11 | 2017-03-08 | 宁波方太厨具有限公司 | A kind of noise reduction impeller and application have the range hood of this impeller |
| CN210662977U (en) * | 2019-05-07 | 2020-06-02 | 宁波方太厨具有限公司 | Side-draft range hood |
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| Publication number | Publication date |
|---|---|
| CN110186082A (en) | 2019-08-30 |
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