CN115234514B - Fan and gas water heater comprising same - Google Patents
Fan and gas water heater comprising same Download PDFInfo
- Publication number
- CN115234514B CN115234514B CN202210931000.8A CN202210931000A CN115234514B CN 115234514 B CN115234514 B CN 115234514B CN 202210931000 A CN202210931000 A CN 202210931000A CN 115234514 B CN115234514 B CN 115234514B
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- China
- Prior art keywords
- air inlet
- fan
- air
- hole
- adjusting mechanism
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a fan and a gas water heater comprising the same, wherein the fan comprises an outer shell and an air inlet adjusting mechanism, the outer shell is provided with a first side wall, a first through hole is formed in the first side wall, the air inlet adjusting mechanism comprises an air inlet channel, two ends of the air inlet channel are respectively provided with an air inlet communicated with the outside and an air outlet communicated with the first through hole, and the size of an opening of the cross section of the air inlet channel is gradually increased from the air inlet to the air outlet; the air inlet adjusting mechanism further comprises a shielding piece, the shielding piece is arranged at one end, close to the air inlet, of the air inlet channel, and the shielding piece is arranged to move towards one side, close to the air outlet, of the air inlet channel when the pressure difference of two sides of the shielding piece exceeds a preset pressure difference. When the fan works, the fan impeller rotates, a negative pressure area is formed in the fan, the higher the rotating speed of the fan is, the larger the pressure difference between two sides of the shielding piece in the air inlet channel is, the shielding piece moves to one side of the air outlet, so that the air inlet area at the air inlet is enlarged, and the air inlet quantity is increased.
Description
Technical Field
The invention relates to a fan and a gas water heater comprising the same.
Background
The air intake of the existing fan is fixed, and cannot be adjusted according to the diameter of the air inlet, or the air intake of the fan can be adjusted only by manually adjusting the size of the air inlet. When the rotating speed of the fan changes, the open area of the air inlet of the fan cannot be changed according to the air inlet demand, so that when the rotating speed of the fan is large and the open area of the air inlet is too small, not only can the sufficient air quantity be obtained, but also larger noise can be generated, and the user experience is affected.
Disclosure of Invention
The invention aims to overcome the defect that the size of an air inlet of a fan cannot be adjusted along with the rotating speed of the fan in the prior art, and provides the fan and a gas water heater comprising the fan.
The invention solves the technical problems by the following technical scheme:
The invention provides a fan, which comprises an outer shell, wherein the outer shell is provided with a first side wall, a first through hole is formed in the first side wall, the fan further comprises an air inlet adjusting mechanism, the air inlet adjusting mechanism comprises an air inlet channel, two ends of the air inlet channel are respectively provided with an air inlet communicated with the outside and an air outlet communicated with the first through hole, and the size of an opening of the cross section of the air inlet channel is gradually increased from the air inlet to the air outlet;
The air inlet adjusting mechanism further comprises a shielding piece, the shielding piece is arranged at one end, close to the air inlet, in the air inlet channel, and the shielding piece is arranged to move towards one side, close to the air outlet, when the pressure difference of two sides of the shielding piece exceeds a preset pressure difference.
In this scheme, adopt above-mentioned structure, the fan during operation, fan impeller rotates, and the inside negative pressure district that forms of fan, and the higher fan rotational speed is, and the pressure difference of the shelter from the piece both sides in the air inlet passageway is big more, and the shelter from piece to air outlet one side removal for the air inlet department air inlet area increases, thereby makes the intake increase. The air inlet adjusting mechanism can realize the common adjustment of the air inlet area along with the rotating speed of the fan, so that the working range of the fan is enlarged, and the applicability is better.
Preferably, the air inlet adjusting mechanism further comprises a reset piece, and the reset piece is used for enabling the shielding piece to return to the initial position when the pressure difference of two sides of the shielding piece is smaller than a preset pressure difference.
In this scheme, make the fan after stopping work or fan rotational speed reduce the back through setting up the piece that resets, the one end that is close to the air intake can be got back to the piece that shelters from to the opening size of air intake can be readjusted according to the operating condition of fan again.
Preferably, the reset piece is a spring, and the spring is arranged on one side of the shielding piece, which is close to the air outlet.
In this scheme, reset piece adopts the spring, simple structure, easy to assemble.
Preferably, a guide rod is further arranged in the air inlet channel, and the shielding piece is slidably arranged on the guide rod.
In this scheme, through setting up the guide arm and leading to the direction to shielding member, avoid shielding member to take place the skew in the air inlet passageway and influence air inlet regulation effect.
Preferably, the air inlet adjusting mechanism comprises a plurality of air inlet channels, and each air inlet channel is internally provided with the shielding piece.
In this scheme, adopt above-mentioned structure, guarantee the fan through a plurality of air inlet passageway and have sufficient intake, avoid the air inlet not enough to influence the working property of fan.
Preferably, the air inlet adjusting mechanism comprises a cylindrical shell, a plurality of air inlet channels extend along the radial direction of the cylindrical shell, and the air inlet is formed in the peripheral wall of the cylinder.
In this scheme, adopt above-mentioned structure for air inlet adjustment mechanism simple structure, easy to assemble are convenient for set up the air inlet passageway of a plurality of different orientation air intakes simultaneously, guarantee the stability of intake.
Preferably, the air inlet channel is in a splayed structure.
In this scheme, the air inlet passageway adopts the splayed structure, when guaranteeing that the opening cross-section of air inlet passageway increases gradually, simple structure, easy processing.
Preferably, the cylindrical shell is provided with an end plate attached to the first side wall, a second through hole is formed in the middle of the end plate, and the air outlet is communicated with the first through hole through the second through hole.
In the scheme, the structure is adopted, so that the fan is compact in structure.
Preferably, the second through hole and the first through hole have the same structure size and are concentrically arranged; or, the first through hole is positioned in an inner area of the second through hole.
In this scheme, adopt above-mentioned structure, guarantee that the fan can reach maximum intake.
The invention also provides a gas water heater which comprises the fan.
The invention has the positive progress effects that: when the fan works, the fan impeller rotates, a negative pressure area is formed in the fan, the higher the rotating speed of the fan is, the larger the pressure difference between two sides of the shielding piece in the air inlet channel is, the shielding piece moves to one side of the air outlet, so that the air inlet area at the air inlet is enlarged, and the air inlet quantity is increased. The air inlet adjusting mechanism can realize the common adjustment of the air inlet area along with the rotating speed of the fan, so that the working range of the fan is enlarged, and the applicability is better.
Drawings
Fig. 1 is a schematic structural view of a blower according to a preferred embodiment of the present invention.
Fig. 2 is an exploded view of the air intake adjusting mechanism of the blower of fig. 1.
Fig. 3 is a schematic structural view of the air intake adjusting mechanism in fig. 1.
Fig. 4 is a schematic diagram of an internal structure of the air intake adjusting mechanism in fig. 3.
Reference numerals illustrate:
outer casing 100
First side wall 110
First through hole 111
Air intake adjusting mechanism 200
Air intake channel 210
Air inlet 211
Air outlet 212
Shutter 220
Spring 230
Guide rod 240
Cylindrical housing 250
End plate 251
Second through hole 252
Detailed Description
The invention will now be more fully described by way of example only and with reference to the accompanying drawings, but the invention is not thereby limited to the scope of this example.
1-4, A fan disclosed in this embodiment includes an outer casing 100, where the outer casing 100 has a first sidewall 110, and a first through hole 111 is provided on the first sidewall 110; the fan further comprises an air inlet adjusting mechanism 200, the air inlet adjusting mechanism 200 comprises an air inlet channel 210, two ends of the air inlet channel 210 are respectively provided with an air inlet 211 communicated with the outside and an air outlet 212 communicated with the first through hole 111, and the size of the opening of the cross section of the air inlet channel 210 is gradually increased from the air inlet 211 to the air outlet 212. The air intake adjusting mechanism 200 further includes a shielding member 220, wherein the shielding member 220 is disposed at one end of the air intake channel 210 near the air intake 211, and the shielding member 220 is configured to move toward the air outlet 212 when the pressure difference between two sides of the shielding member 220 exceeds a preset pressure difference.
By adopting the structure, when the fan of the embodiment works, the fan impeller rotates, a negative pressure area is formed inside the fan, the higher the rotating speed of the fan is, the larger the pressure difference between two sides of the shielding piece 220 in the air inlet channel 210 is, the shielding piece 220 moves to one side of the air outlet 212, so that the air inlet area at the air inlet 211 is enlarged, and the air inlet quantity is increased. The air inlet adjusting mechanism 200 can realize the common adjustment of the air inlet area along with the rotating speed of the fan, so that the working range of the fan is enlarged, and the applicability is better.
In this embodiment, the shielding member 220 is a square stopper, and is made of a light material, such as foam or hollow body, so as to facilitate the movement of the shielding member 220 under a certain pressure difference.
The air intake adjusting mechanism 200 further includes a reset member for returning the shutter 220 to the original position when the pressure difference across the shutter 220 is less than a preset pressure difference.
In this scheme, through setting up the setting element and making the fan after stopping work or fan rotational speed reduce, the one end that is close to air intake 211 can be got back to shielding piece 220 can be according to the operating condition of fan automatically regulated air intake 211's opening size again.
As shown in fig. 4, in this embodiment, the restoring member is a spring 230, and the spring 230 is disposed on a side of the shielding member 220 near the air outlet 212. The reset piece adopts the spring 230, the structure is simple, and the installation is convenient; the spring 230 is disposed on the side of the shielding member 220 near the air outlet 212, so that the shielding member 220 can have a larger stroke, and the opening size of the air inlet 211 of the air inlet channel 210 can have a larger adjustment range. The spring 230 is preferably a spring 230 with a smaller elastic coefficient, so that the shutter 220 can overcome the elastic force of the spring 230 under a certain pressure difference.
In other embodiments, the restoring member may be other elastic members, such as a spring.
In this embodiment, as shown in fig. 4, a guide rod 240 is further disposed in the air inlet channel 210, and the shielding member 220 is slidably disposed on the guide rod 240. The guide rod 240 is arranged to guide the shielding piece 220, so that the shielding piece 220 is prevented from being deviated in the air inlet channel 210 to influence the air inlet adjusting effect.
In this embodiment, two ends of the guide rod 240 are fixed by mounting seats disposed at two ends of the air inlet channel 210, the spring 230 is sleeved on the guide rod 240, and two ends of the spring 230 are respectively abutted against the shielding member 220 and the mounting seats disposed at one end of the air outlet 212 in the air inlet channel 210.
The air intake adjusting mechanism 200 includes a plurality of air intake passages 210, and a shielding member 220 is disposed in each air intake passage 210. The plurality of air inlet channels 210 ensure that the fan has enough air inlet quantity, and the influence of insufficient air inlet on the working performance of the fan is avoided.
In this embodiment, there are 6 air intake passages 210. Of course, the air inlet channels 210 can be arranged according to actual requirements, and can be one, two or other quantities.
As shown in fig. 3 and 4, in the present embodiment, the air intake adjusting mechanism 200 includes a cylindrical housing 250, a plurality of air intake passages 210 extend in a radial direction of the cylindrical housing 250, and an air intake 211 is provided on a cylindrical outer peripheral wall.
The air inlet adjusting mechanism 200 adopts the cylindrical shell 250, so that the air inlet adjusting mechanism 200 has a simple structure and is convenient to install, and meanwhile, a plurality of air inlet channels 210 which are oriented to the air inlet 211 in different directions are convenient to set, and the stability of the air inlet quantity is ensured.
As shown in fig. 4, in the present embodiment, the air intake passage 210 has a splayed structure. The air inlet channel 210 adopts a splayed structure, so that the air inlet channel 210 is simple in structure and easy to process while the opening section of the air inlet channel 210 is gradually increased.
In other embodiments, the air inlet channel 210 may be a frustum structure or the like, which only needs to ensure that the openings around the shielding member 220 are in an increased state when the shielding member 220 moves from the air inlet 211 end to the air outlet 212 end of the air inlet channel 210, and detailed descriptions thereof are omitted.
As shown in fig. 3, the cylindrical housing 250 has a end plate 251 attached to the first sidewall 110, a second through hole 252 is formed in the middle of the end plate 251, and the air outlet 212 is communicated with the first through hole 111 through the second through hole 252. By adopting the structure, the fan is compact in structure.
In this embodiment, the second through hole 252 is the same as the first through hole 111 in size and is disposed concentrically. By adopting the structure, the maximum air inlet of the fan can be ensured.
In other embodiments, the first via 111 is located in an area inside the second via 252. Of course, the opening area of the first through hole 111 may be larger than the opening area of the second through hole 252, which is not described herein.
The embodiment also provides a gas water heater, which comprises the fan. The gas water heater can adjust the rotating speed of the fan according to different working states, when the air inlet quantity is required to be increased by the fan, the pressure difference at two sides of the shielding piece 220 in the air inlet channel 210 is increased by increasing the rotating speed of the fan, the shielding piece 220 moves towards the air outlet 212, and then the air inlet area at the air inlet 211 is increased, so that the air inlet quantity is increased.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.
Claims (10)
1. The fan comprises an outer shell, wherein the outer shell is provided with a first side wall, a first through hole is formed in the first side wall, and the fan is characterized by further comprising an air inlet adjusting mechanism, the air inlet adjusting mechanism comprises an air inlet channel, two ends of the air inlet channel are respectively provided with an air inlet communicated with the outside and an air outlet communicated with the first through hole, and the size of an opening of the cross section of the air inlet channel is gradually increased from the air inlet to the air outlet;
The air inlet adjusting mechanism further comprises a shielding piece, the shielding piece is arranged at one end, close to the air inlet, in the air inlet channel, and the shielding piece is arranged to move towards one side, close to the air outlet, when the pressure difference of two sides of the shielding piece exceeds a preset pressure difference.
2. The fan of claim 1, wherein the air intake adjustment mechanism further comprises a reset member for returning the shutter to an initial position when a pressure differential across the shutter is less than a predetermined pressure differential.
3. The fan as claimed in claim 2, wherein the return member is a spring provided at a side of the shutter close to the air outlet.
4. The fan as claimed in claim 1, wherein a guide rod is further provided in the air inlet passage, and the shielding member is slidably provided on the guide rod.
5. The fan as claimed in claim 1, wherein said air intake adjusting mechanism includes a plurality of said air intake passages, each of said air intake passages having said shutter disposed therein.
6. The fan as claimed in claim 5, wherein said air intake adjusting mechanism includes a cylindrical housing, a plurality of said air intake passages extend in a radial direction of said cylindrical housing, and said air intake is provided on an outer peripheral wall of said cylindrical housing.
7. The blower of claim 6, wherein the air intake passage has a splayed configuration.
8. The fan of claim 6, wherein the cylindrical housing has an end plate attached to the first side wall, a second through hole is formed in a middle portion of the end plate, and the air outlet is communicated with the first through hole through the second through hole.
9. The blower of claim 8, wherein the second through hole is the same size and concentrically disposed as the first through hole; or, the first through hole is positioned in an inner area of the second through hole.
10. A gas water heater comprising a fan as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210931000.8A CN115234514B (en) | 2022-08-04 | 2022-08-04 | Fan and gas water heater comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210931000.8A CN115234514B (en) | 2022-08-04 | 2022-08-04 | Fan and gas water heater comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115234514A CN115234514A (en) | 2022-10-25 |
| CN115234514B true CN115234514B (en) | 2024-06-28 |
Family
ID=83678560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210931000.8A Active CN115234514B (en) | 2022-08-04 | 2022-08-04 | Fan and gas water heater comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115234514B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103110392A (en) * | 2013-03-15 | 2013-05-22 | 林小泉 | Wind-driven floor brush |
| CN110374927A (en) * | 2019-06-26 | 2019-10-25 | 宁波方太厨具有限公司 | Blower |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523433B (en) * | 2016-09-29 | 2018-12-14 | 青岛海尔股份有限公司 | Centrifugal blower |
| CN209195764U (en) * | 2018-09-26 | 2019-08-02 | 广东腾龙建设有限公司 | A kind of centrifugal fan |
| CN112360764B (en) * | 2020-09-22 | 2021-07-13 | 东风汽车集团有限公司 | Turbocharger, adjusting method, engine and vehicle |
-
2022
- 2022-08-04 CN CN202210931000.8A patent/CN115234514B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103110392A (en) * | 2013-03-15 | 2013-05-22 | 林小泉 | Wind-driven floor brush |
| CN110374927A (en) * | 2019-06-26 | 2019-10-25 | 宁波方太厨具有限公司 | Blower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115234514A (en) | 2022-10-25 |
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