CN219587825U - Wind wheel and bathroom heater - Google Patents
Wind wheel and bathroom heater Download PDFInfo
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- CN219587825U CN219587825U CN202320241153.XU CN202320241153U CN219587825U CN 219587825 U CN219587825 U CN 219587825U CN 202320241153 U CN202320241153 U CN 202320241153U CN 219587825 U CN219587825 U CN 219587825U
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- 239000000178 monomer Substances 0.000 claims abstract description 18
- 238000005192 partition Methods 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 26
- 238000009423 ventilation Methods 0.000 claims description 18
- 238000007664 blowing Methods 0.000 claims description 9
- 239000010410 layer Substances 0.000 description 77
- 230000002457 bidirectional effect Effects 0.000 description 13
- 239000002356 single layer Substances 0.000 description 10
- 230000006872 improvement Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of bathroom heaters, in particular to a wind wheel and a bathroom heater. The wind wheel comprises: the first blade layer and the second blade layer are axially arranged at intervals with the first blade layer through a blade partition plate; the first blade layer and/or the second blade layer is formed by arranging a plurality of blade monomers around a central axis; the inlet geometrical angle of the blade monomer is alpha, alpha is more than or equal to 60 degrees and less than or equal to 72 degrees, the outlet geometrical angle of the blade monomer is beta, beta is more than or equal to 12 degrees and less than or equal to 30 degrees, and alpha and beta simultaneously meet the requirement of more than or equal to 80 degrees and less than or equal to 100 degrees. The wind wheel provided by the utility model can effectively reduce noise and improve the efficiency and performance of the wind wheel while ensuring the ideal flow field state of the system and improving the air quantity.
Description
Technical Field
The utility model relates to the technical field of bathroom heaters, in particular to a wind wheel and a bathroom heater.
Background
The bathroom heater has the functions of air supply and ventilation, and the traditional single-motor bathroom heater mainly adopts a single-layer bidirectional wind wheel and is matched with a corresponding air duct.
As shown in fig. 1, the bathroom heater generally adopts a U-shaped air duct, and when the single-layer bidirectional wind wheel 100 rotates in a clockwise direction, the bathroom heater is in a heating and blowing state; when the single-layer bidirectional wind wheel 100 rotates in the counterclockwise direction, the bathroom warmer is in a ventilation state. Because the air quantity with the two functions of heating, blowing and ventilation is considered through forward rotation and reverse rotation, and the system resistance is overcome, the blades of the single-layer bidirectional wind wheel 100 are generally designed to be nearly vertical to the diameter of the wind wheel, and the wind wheel has smaller air quantity, larger noise and poorer efficiency and performance.
Disclosure of Invention
Therefore, the utility model aims to overcome the defects of small air quantity and large noise of the single-layer bidirectional wind wheel of the prior bathroom heater in the prior art, thereby providing the wind wheel capable of improving the air quantity and reducing the noise.
The utility model aims to overcome the defects of small air quantity and large noise of a single-layer bidirectional wind wheel of the prior bathroom heater in the prior art, thereby providing the bathroom heater capable of improving the air quantity and reducing the noise.
In order to solve the technical problems, the wind wheel provided by the utility model comprises:
the first blade layer and the second blade layer are axially arranged at intervals with the first blade layer through a blade partition plate; the first blade layer and/or the second blade layer is formed by arranging a plurality of blade monomers around a central axis;
the inlet geometrical angle of the blade monomer is alpha, alpha is more than or equal to 60 degrees and less than or equal to 72 degrees, the outlet geometrical angle of the blade monomer is beta, beta is more than or equal to 12 degrees and less than or equal to 30 degrees, and alpha and beta simultaneously meet the requirement of more than or equal to 80 degrees and less than or equal to 100 degrees.
Optionally, the blade monomer comprises a left curved blade profile and a right curved blade profile; either one of the first leaf layer and the second leaf layer is constituted by the left curved leaf profile, and the other layer is constituted by the right curved leaf profile.
Optionally, the wind wheel further comprises a support frame, wherein the support frame comprises a rotation center seat and a plurality of support rods connected with the rotation center seat; the support rod is connected with the blade partition plate.
The utility model provides a bathroom warmer, comprising:
a volute, and the wind wheel arranged in the volute;
the first blade layer is communicated with the heating air outlet, and the second blade layer is communicated with the ventilation opening.
Optionally, when the wind wheel rotates clockwise in the volute, the wind wheel is set to be a heating wind blowing direction, and rotates anticlockwise in a ventilation direction, the blade profile of the first blade layer is defined as a left-curved blade profile, and the blade profile of the second blade layer is defined as a right-curved blade profile.
Optionally, the number of the left curved blade profile is L, and the number of the right curved blade profile is R, so that L is more than or equal to R+1.
Optionally, L and R are reciprocal prime numbers.
Optionally, a PTC heating module is disposed at the heating air outlet.
Optionally, the bathroom warmer further comprises an air collecting plate, and the air collecting plate is covered on the box body; the wind collecting plate is provided with a wind guide ring, and the wind guide ring is suitable for guiding external airflow to the wind wheel.
Optionally, the bathroom warmer further comprises a motor in transmission connection with the wind wheel, and the motor is suitable for driving the wind wheel to rotate.
The technical scheme of the utility model has the following advantages:
1. according to the wind wheel provided by the utility model, the first blade layer and/or the second blade layer are formed by arranging a plurality of blade monomers around the central axis, and the first blade layer and the second blade layer are axially arranged at intervals through the blade partition plates, so that a double-layer bidirectional wind wheel is formed; the inlet geometric angle of the blade monomer is alpha, alpha is smaller than or equal to 60 degrees and smaller than or equal to 72 degrees, the outlet geometric angle of the blade monomer is beta, beta is smaller than or equal to 12 degrees and smaller than or equal to 30 degrees, and alpha and beta simultaneously satisfy that alpha and beta are smaller than or equal to 80 degrees and smaller than or equal to 100 degrees, so that the ideal flow field state of the system is ensured, the air quantity is improved, the noise is effectively reduced, and the efficiency and the performance of the wind wheel are improved.
2. The bathroom warmer provided by the utility model provides that the wind wheel is heated and blown in the clockwise rotation direction and the anticlockwise rotation direction is the ventilation direction in the volute, and the leaf profile of the first leaf layer is defined as a left-bent leaf profile and the leaf profile of the second leaf layer is defined as a right-bent leaf profile; the number of the left curved blade profile is L, the number of the right curved blade profile is R, the L is more than or equal to R+1, and the L and the R are prime numbers, so that the static pressure of the fan is increased, the first blade layer and the second blade layer are prevented from generating resonance, noise is reduced, and the fan is prevented from generating vibration.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a bathroom heater with a single-layer bidirectional wind wheel before modification;
FIG. 2 is a schematic view of the overall structure of the wind wheel of the present utility model;
FIG. 3 is a schematic side view of the wind wheel of the present utility model;
FIG. 4 is a schematic view of the left curved blade profile of the wind turbine of the present utility model;
FIG. 5 is a schematic view of the structure of the right curved blade profile of the wind turbine of the present utility model;
FIG. 6 is a schematic diagram of the overall structure of the bathroom heater of the present utility model;
FIG. 7 is a schematic diagram of the front view of the bathroom heater of the present utility model;
fig. 8 is a schematic view of the structure of section A-A in fig. 7.
Reference numerals illustrate:
10. a first leaf layer; 20. a second leaf layer; 30. a blade partition;
40. a blade unit; 41. left curved blade profile; 42. right curved blade profile;
50. a support frame; 51. a rotating center seat; 52. a support rod;
60. a volute; 61. a motor;
70. a case; 71. heating the air outlet; 72. a ventilation port;
80. a PTC heating module;
90. a wind collecting plate; 91. and an air guide ring.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Example 1
Referring to fig. 2 to 8, the wind wheel provided in this embodiment includes:
a first vane layer 10 and a second vane layer 20 axially spaced from the first vane layer 10 by a vane separator 30; the first blade layer 10 and/or the second blade layer 20 are formed by arranging a plurality of blade units 40 around a central axis;
the inlet geometrical angle of the blade monomer 40 is alpha, alpha is more than or equal to 60 degrees and less than or equal to 72 degrees, the outlet geometrical angle of the blade monomer 40 is beta, beta is more than or equal to 12 degrees and less than or equal to 30 degrees, and alpha and beta are more than or equal to 80 degrees and less than or equal to alpha+beta and less than or equal to 100 degrees.
It should be noted that, the blade unit 40 may be a single arc blade, or may be a double arc blade, a multi-arc blade, or an airfoil blade, and may be adjusted according to actual production requirements, which is not limited to the case described in the embodiment; referring to fig. 3, the central axis refers to a line O in fig. 3, which coincides with the central axis of the support frame 50; referring to fig. 2, the first blade layer 10 and the second blade layer 20 are respectively located at two axial sides of the blade partition 30, the first blade layer 10 is connected to an end face of one axial end of the blade partition 30, the second blade layer 20 is connected to an end face of the other axial end of the blade partition 30, and the supporting frame 50 is connected to a radially inner side face of the blade partition 30.
It should be noted that, referring to fig. 5, since too small or too large inlet geometry angle affects the flow field state in the blade, and causes performance attenuation, the inlet geometry angle α of the blade unit 40 needs to satisfy 60 ° or more and 72 ° or less, so as to ensure the ideal flow field state in the blade, and avoid the situation of causing performance attenuation; when the outlet geometric angle is too small or too large, the system flow field is greatly deteriorated when the outlet geometric angle moves in the reverse rotation (the rotation moves towards the blade back direction of the blade layer), so that the performance attenuation and the noise are increased, therefore, the outlet geometric angle beta of the blade monomer 40 needs to meet the condition that the angle beta is more than or equal to 12 degrees and less than or equal to 30 degrees, and the angles alpha and beta simultaneously meet the condition that the angle alpha and the angle beta are more than or equal to 80 degrees and less than or equal to 100 degrees, thereby ensuring the ideal flow field state of the system, improving the air quantity, simultaneously effectively reducing the noise, and improving the efficiency and the performance of the wind wheel.
Alternatively, the blade unit 40 is a single arc blade.
In this embodiment, the first blade layer 10 and/or the second blade layer 20 are formed by arranging a plurality of blade units 40 around a central axis, and the first blade layer 10 and the second blade layer 20 are axially spaced by a blade separator 30, so as to form a double-layer bidirectional wind wheel; the inlet geometric angle of the blade monomer 40 is alpha, alpha is smaller than or equal to 60 degrees and smaller than or equal to 72 degrees, the outlet geometric angle of the blade monomer 40 is beta, beta is smaller than or equal to 12 degrees and smaller than or equal to 30 degrees, and alpha and beta simultaneously satisfy the condition that alpha and beta are smaller than or equal to 80 degrees and smaller than or equal to 100 degrees, so that the ideal flow field state of the system is ensured, the air quantity is improved, the noise is effectively reduced, and the efficiency and the performance of the wind wheel are improved.
Specifically, the blade unit 40 includes a left curved blade profile 41 and a right curved blade profile 42; either one of the first leaf layer 10 and the second leaf layer 20 is constituted by the left curved leaf profile 41, and the other layer is constituted by the right curved leaf profile 42.
It should be noted that, any one layer of the first blade layer 10 and the second blade layer 20 is formed by uniformly arranging a plurality of left curved blade profiles 41 with identical arcs around the central axis, the other layer is formed by uniformly arranging a plurality of right curved blade profiles 42 with identical arcs around the central axis, and the first blade layer 10 and the second blade layer 20 are axially arranged at intervals through the blade partition plates 30, thereby forming a double-layer bidirectional wind wheel.
Specifically, the wind wheel further comprises a support frame 50, wherein the support frame 50 comprises a rotation center seat 51 and a plurality of support rods 52 connected with the rotation center seat 51; the support bar 52 is connected to the vane separator 30.
Referring to fig. 2, in the present embodiment, the supporting frame 50 includes a rotation center seat 51 and a plurality of supporting rods 52 formed by extending the rotation center seat 51 along a radial direction; the supporting rod 52 is fixedly connected with the inner side wall of the blade partition plate 30, and the rotation center seat 51 is suitable for being connected with an output shaft of a motor.
Example two
Referring to fig. 2 to 8, the bathroom warmer provided in this embodiment includes:
a scroll casing 60, and a wind wheel as described above provided in the scroll casing 60;
the first vane layer 10 is communicated with the heating air outlet 71, and the second vane layer 20 is communicated with the ventilation opening 72.
Optionally, the bathroom heater adopts a U-shaped air duct.
Specifically, when the wind wheel is set to be a heating blowing direction when rotating clockwise and a ventilation direction when rotating counterclockwise in the scroll casing 60, the vane profile of the first vane layer 10 is defined as a left curved vane profile 41 and the vane profile of the second vane layer 20 is defined as a right curved vane profile 42.
Specifically, the number of the left curved blade profile 41 is L, and the number of the right curved blade profile 42 is R, so that L is equal to or greater than r+1.
It should be noted that, in this embodiment, the first blade layer 10 is connected to the heating air outlet 71, the second blade layer 20 is connected to the ventilation opening 72, and since the PTC heating module 80 is provided at the heating air outlet 71, the number of blades of the first blade layer 10 needs to be greater than the number of blades of the second blade layer 20 to increase the static pressure of the fan, so as to resist the resistance caused by the PTC heating module 80; if the wind wheel is set to be a heating wind direction when rotating clockwise and a ventilation direction when rotating counterclockwise in the scroll 60, the blade profile of the first blade layer 10 is defined as a left curved blade profile 41 and the blade profile of the second blade layer 20 is defined as a right curved blade profile 42, so that the number of the left curved blade profile 41 and the number of the right curved blade profile 42 need to satisfy l++1.
Specifically, L and R are reciprocal prime numbers.
It should be noted that, the reciprocal prime number refers to two non-zero natural numbers with a common factor of only 1; because different blade layers are all noise sources, if the number of blades of different blade layers has a common factor, a common fundamental frequency of noise exists between the different blade layers, resonance can be caused, the noise can become large, and meanwhile, the fan itself can vibrate; therefore, the number of blades of the first blade layer 10 and the number of blades of the second blade layer 20 are mutually prime.
In this embodiment, when the wind wheel rotates clockwise in the scroll case 60, the wind wheel is set to be a heating blowing direction, and rotates counterclockwise to be a ventilation direction, the blade profile of the first blade layer 10 is defined as a left curved blade profile 41, and the blade profile of the second blade layer 20 is defined as a right curved blade profile 42; the number of the left curved blade profile 41 is L, the number of the right curved blade profile 42 is R, so that L is more than or equal to R+1, L and R are prime numbers, resonance of the first blade layer 10 and the second blade layer 20 is avoided while the static pressure of the fan is increased, noise is reduced, and vibration of the fan is avoided.
Specifically, the PTC heating module 80 is disposed at the heating air outlet 71.
Specifically, the bathroom warmer further comprises an air collecting plate 90, and the air collecting plate is covered on the box body 70; the wind collecting plate 90 is provided with a wind guiding ring 91, and the wind guiding ring 91 is suitable for guiding external air flow to the wind wheel.
Specifically, the bathroom warmer further comprises a motor 61 in transmission connection with the wind wheel, and the motor 61 is suitable for driving the wind wheel to rotate.
In the present embodiment, as shown in fig. 2 and 6, when the wind wheel is set to be a heating blowing direction during clockwise rotation and a ventilation direction during counterclockwise rotation in the scroll casing 60, the profile of the first blade layer 10 is defined as a left curved profile 41 and the profile of the second blade layer 20 is defined as a right curved profile 42: when the wind wheel rotates clockwise, air flow enters the wind wheel from the wind guide ring 91 of the wind collecting plate 90, does work through the wind wheel, is heated by the PTC heating module 80 and is sprayed out from the heating air outlet 71, in the process, the first blade layer 10 works as a forward centrifugal wind wheel, and the second blade layer 20 works as a backward centrifugal wind wheel; when the wind wheel rotates anticlockwise, air flow enters the wind wheel from the air guide ring 91 of the air collecting plate 90, and is sprayed out from the ventilation opening 72 after acting through the wind wheel, in the process, the first blade layer 10 works as a backward centrifugal fan, and the second blade layer 20 works as a forward centrifugal wind wheel.
It is worth to say that, according to the wind wheel provided by the utility model, the first blade layer 10 and the second blade layer 20 adopt the same blade profile, the inlet geometric angle alpha of the blade profile is more than or equal to 60 degrees and less than or equal to 72 degrees, the outlet geometric angle beta is more than or equal to 12 degrees and less than or equal to 30 degrees, and the alpha and the beta are more than or equal to 80 degrees and less than or equal to 100 degrees; the number of the blades of the first blade layer 10 is L, the number of the blades of the second blade layer 20 is R, and then L is more than or equal to R+1, and L and R are prime numbers. Under the condition that the conditions are met, the test results of the wind wheel provided by the utility model and the single-layer bidirectional wind wheel before improvement at the motor rotation speed of 1250rpm are compared as follows:
| scheme for the production of a semiconductor device | Blowing direction and air quantity | Ventilation air quantity |
| Single-layer bidirectional wind wheel before improvement | 126 | 146 |
| The wind wheel of the utility model | 132 | 162 |
Therefore, compared with the single-layer bidirectional wind wheel before improvement, the wind wheel has the advantage that the wind quantity is improved in the heating blowing direction or the ventilation direction.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (10)
1. A wind turbine, comprising:
a first vane layer (10) and a second vane layer (20) which are axially arranged at intervals with the first vane layer (10) through a vane partition plate (30); the first blade layer (10) and/or the second blade layer (20) are formed by arranging a plurality of blade monomers (40) around a central axis;
the inlet geometric angle of the blade monomer (40) is alpha, alpha is more than or equal to 60 degrees and less than or equal to 72 degrees, the outlet geometric angle of the blade monomer (40) is beta, beta is more than or equal to 12 degrees and less than or equal to 30 degrees, and alpha and beta are more than or equal to 80 degrees and less than or equal to 100 degrees at the same time.
2. A wind rotor according to claim 1, wherein the blade units (40) comprise a left curved blade profile (41) and a right curved blade profile (42); either one of the first leaf layer (10) and the second leaf layer (20) is constituted by the left curved leaf profile (41), and the other layer is constituted by the right curved leaf profile (42).
3. A wind wheel according to any of claims 1-2, further comprising a support frame (50), said support frame (50) comprising a centre of rotation seat (51) and a number of support bars (52) connected to said centre of rotation seat (51); the support bar (52) is connected to the blade partition (30).
4. A bathroom warmer, comprising:
-a volute (60), and-a wind wheel according to any of the preceding claims 1-3, arranged within the volute (60);
the first blade layer (10) is communicated with the heating air outlet (71), and the second blade layer (20) is communicated with the ventilation opening (72).
5. The bathroom heater according to claim 4, wherein the wind wheel is defined as a heating blowing direction when rotating clockwise and a ventilation direction when rotating counterclockwise in the volute (60), the blade profile defining the first blade layer (10) is a left curved blade profile (41) and the blade profile of the second blade layer (20) is a right curved blade profile (42).
6. The bathroom heater according to claim 5, wherein the number of sheets of the left bent blade profile (41) is L, and the number of sheets of the right bent blade profile (42) is R, and L is equal to or greater than R+1.
7. The bathroom warmer of claim 6, wherein L and R are reciprocal prime numbers.
8. Bathroom heater according to any of claims 4-7, characterized in that a PTC heating module (80) is provided at the heating outlet (71).
9. The bathroom warmer of any one of claims 4-7, further comprising a wind collecting plate (90) disposed over the housing (70); the wind collecting plate (90) is provided with a wind guiding ring (91), and the wind guiding ring (91) is suitable for guiding external airflow to the wind wheel.
10. The bathroom warmer of any one of claims 4-7, further comprising a motor (61) in driving connection with said wind wheel, said motor (61) being adapted to drive said wind wheel in rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320241153.XU CN219587825U (en) | 2023-02-01 | 2023-02-01 | Wind wheel and bathroom heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320241153.XU CN219587825U (en) | 2023-02-01 | 2023-02-01 | Wind wheel and bathroom heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219587825U true CN219587825U (en) | 2023-08-25 |
Family
ID=87697387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320241153.XU Active CN219587825U (en) | 2023-02-01 | 2023-02-01 | Wind wheel and bathroom heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219587825U (en) |
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2023
- 2023-02-01 CN CN202320241153.XU patent/CN219587825U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 310018 No.210, 21st Street, Hangzhou Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee after: Aopu Intelligent Technology Co.,Ltd. Country or region after: China Address before: 310020 No. 210, 21st Street, Xiasha economic and Technological Development Zone, Qiantang new area, Hangzhou, Zhejiang Patentee before: AUPU Home Style Corp.,Ltd. Country or region before: China |