CN109424558B - Gas water heater and fan assembly for gas water heater - Google Patents
Gas water heater and fan assembly for gas water heater Download PDFInfo
- Publication number
- CN109424558B CN109424558B CN201710771342.7A CN201710771342A CN109424558B CN 109424558 B CN109424558 B CN 109424558B CN 201710771342 A CN201710771342 A CN 201710771342A CN 109424558 B CN109424558 B CN 109424558B
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- motor
- air
- water heater
- gas water
- fan assembly
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 239000007789 gas Substances 0.000 claims abstract description 55
- 230000017525 heat dissipation Effects 0.000 claims abstract description 41
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000003546 flue gas Substances 0.000 claims abstract description 28
- 239000003517 fume Substances 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims 2
- 230000005855 radiation Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 8
- 239000004065 semiconductor Substances 0.000 description 5
- 239000002737 fuel gas Substances 0.000 description 4
- 238000013021 overheating Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
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- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
-
- 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
- F24H9/0005—Details for water heaters
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a gas water heater and a fan assembly for the gas water heater, wherein the fan assembly for the gas water heater comprises: the device comprises a shell, wherein a first air cavity and a second air cavity are defined in the shell at intervals, the first air cavity is provided with a first air inlet and a first air outlet, and the second air cavity is provided with a second air inlet and a second air outlet; the heat dissipation wheel is arranged in the first air cavity; the impeller is arranged in the second air cavity; the motor is arranged on the shell, the heat dissipation wheel is positioned between the impeller and the motor, and a driving shaft of the motor is sequentially connected with the heat dissipation wheel and the impeller. According to the fan assembly for the gas water heater, disclosed by the embodiment of the invention, the motor can be effectively prevented from being subjected to heat radiation of high-temperature flue gas, the ambient temperature around the motor can be reduced, the heat dissipation of the motor is accelerated, and the motor is prevented from being overheated.
Description
Technical Field
The invention relates to the technical field of gas water heaters, in particular to a gas water heater and a fan assembly for the gas water heater.
Background
Currently, forced-ventilated gas water heaters in the gas water heater industry can be divided into forced-ventilated and forced-ventilated gas water heaters. The electric fan of the forced-suction type gas water heater is arranged at the upper part in the machine, exhaust gas is forced to be discharged outdoors by utilizing the suction force, and the fan of the forced-suction type gas water heater is arranged at the lower part in the machine, so that the exhaust gas is blown out outdoors. The direct current motor adopted by the strong drum type fan has adjustable rotating speed and excellent wind resistance. The forced-suction type fan adopts an alternating current fan, the rotating speed of the forced-suction type fan is basically fixed, the wind resistance is poor, but the processing technology is simple, and the cost advantage of the whole machine is obvious.
Therefore, the industry has proposed to develop a direct-current forced-pumping gas water heater, but a motor control circuit board is installed inside the direct-current motor, and a Hall element for outputting rotation speed, a semiconductor material such as a high-power tube, and some resistance and capacitance are integrated on a control board, so that the working characteristics and the service life of the semiconductor element are greatly affected by temperature. The fan component of the forced-pumping gas water heater is positioned above the heat exchanger, and is influenced by high-temperature flue gas in the working process at any time, so that the temperature around the volute is higher. At this time, the semiconductor components of the circuit board of the fan are not only affected by the temperature rise generated by the operation of the fan, but also affected by the heat radiation generated by surrounding high-temperature smoke, and the risk of smoke leakage exists. The temperature of the fan circuit board is increased, so that the drift of the electrical characteristics of the semiconductor is caused, and the semiconductor is irreversibly damaged due to the excessively high temperature.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the fan assembly for the gas water heater, which can effectively prevent the motor from overheating.
The invention also provides a gas water heater with the fan assembly.
According to an embodiment of the invention, a fan assembly for a gas water heater comprises: the device comprises a shell, wherein a first air cavity and a second air cavity are defined in the shell at intervals, the first air cavity is provided with a first air inlet and a first air outlet, and the second air cavity is provided with a second air inlet and a second air outlet; the heat dissipation wheel is arranged in the first air cavity; the impeller is arranged in the second air cavity; the motor is arranged on the shell, the heat dissipation wheel is positioned between the impeller and the motor, and a driving shaft of the motor is sequentially connected with the heat dissipation wheel and the impeller.
According to the fan assembly for the gas water heater, disclosed by the embodiment of the invention, the motor can be effectively prevented from being subjected to heat radiation of high-temperature flue gas, the ambient temperature around the motor can be reduced, the heat dissipation of the motor is accelerated, and the motor is prevented from being overheated.
In addition, the fan assembly for the gas water heater according to the above embodiment of the present invention may further have the following additional technical features:
according to the fan assembly for the gas water heater, the rotation axes of the motor, the impeller and the heat dissipation wheel extend in the horizontal direction, the second air inlet is formed in the lower portion of the casing, and the second air outlet is formed in the upper portion of the casing.
Further, the first air inlet is arranged at the side part of the shell, and the first air outlet is arranged at the upper part of the shell.
According to some embodiments of the invention, the motor comprises: the motor main body and the driving shaft, the motor main body is arranged on the outer side of the shell.
Further, a mounting hole is formed in the side portion of the casing, and the motor body is arranged in the mounting hole in a clearance fit mode to form the first air inlet.
According to a further embodiment of the invention, the motor body is provided with a plurality of mounting parts arranged at intervals along the circumferential direction thereof on the outer circumferential edge, and the mounting parts are connected with the casing through threaded fasteners.
Optionally, the fit clearance between the motor body and the mounting hole has a width of 2mm to 5mm.
According to some embodiments of the invention, the motor is a dc motor.
In some embodiments of the invention, the housing comprises: a fume collecting hood; the cover plate is covered on one side of the fume collecting hood; the heat insulation plate is arranged between the fume collecting hood and the cover plate, so that the space between the fume collecting hood and the cover plate is divided into a first air cavity and a second air cavity, and the motor is connected with the cover plate.
According to an embodiment of the invention, a gas water heater comprises: a housing defining a mounting cavity therein; the gas burner is arranged in the mounting cavity; a heat exchanger disposed within the mounting cavity and above the gas burner; according to the fan assembly for the gas water heater, the first air inlet is communicated with the mounting cavity, the second air inlet is communicated with the flue gas outlet of the heat exchanger, and the first air outlet and the second air outlet are communicated with the outside.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic exploded view of a fan assembly according to an embodiment of the present invention;
FIG. 2 is a schematic view of a gas water heater according to one embodiment of the present invention;
fig. 3 is a schematic view of a gas water heater according to another embodiment of the present invention.
Reference numerals:
a fan assembly 100; a gas water heater 110;
a housing 10; a first wind chamber 101; a second wind chamber 102; a first air inlet 103; a first air outlet 104; a second air inlet 105; a second air outlet 106; a mounting hole 107;
a fume collecting hood 11; a cover plate 12; a heat insulating plate 13;
a heat dissipation wheel 20;
an impeller 30;
a motor 40; a motor main body 401; a drive shaft 402; a mounting portion 403;
a housing 50; a mounting cavity 501; a vent 502;
a gas burner 60; a gas inlet 601;
a heat exchanger 70; a water inlet 701; a water outlet 702;
and a power panel 80.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are exemplary for the purpose of illustrating the present invention and are not to be construed as limiting the present invention, and various changes, modifications, substitutions and alterations may be made therein by one of ordinary skill in the art without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents.
In the description of the present invention, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
A fan assembly 100 according to an embodiment of the present invention is described below with reference to fig. 1-3.
Referring to fig. 1, a fan assembly 100 according to one embodiment of the present invention may include: the casing 10, the heat dissipation wheel 20, the impeller 30 and the motor 40.
Specifically, the casing 10 may define a first air cavity 101 and a second air cavity 102, where the first air cavity 101 has a first air inlet 103 and a first air outlet 104, and the second air cavity 102 has a second air inlet 105 and a second air outlet 106, and the first air cavity 101 and the second air cavity 102 are spaced apart. The heat dissipation wheel 20 may be disposed in the first air chamber 101, the impeller 30 may be disposed in the second air chamber 102, the motor 40 may be disposed on the casing 10, the heat dissipation wheel 20 is disposed between the impeller 30 and the motor 40, and the driving shaft 402 of the motor 40 is sequentially connected to the heat dissipation wheel 20 and the impeller 30.
Thus, the driving shaft 402 of the motor 40 can drive the heat dissipation wheel 20 and the impeller 30 to rotate at the same time, and the high-temperature flue gas enters the second air cavity 102 from the second air inlet 105 due to the rotation pumping force of the impeller 30, and then is discharged outside through the second air outlet 106. The rotation of the heat dissipation wheel 20 drives air to enter the first air cavity 101 from the first air inlet 103, and then is discharged to the outside through the first air outlet 104.
In the related art, the motor is positioned between the impeller and the heat dissipation wheel, the air disturbed in the heat dissipation process of the heat dissipation wheel is still high-temperature air radiated by high-temperature flue gas, and the heat dissipation effect of the motor is not obvious.
In the embodiment of the present invention, the first air chamber 101 and the second air chamber 102 are disposed in the casing 10 at intervals, the impeller 30 is disposed in the second air chamber 102, and the heat dissipation wheel 20 is disposed in the first air chamber 101, so as to form a double air pumping system at intervals. Under the drive of impeller 30, high temperature flue gas can flow out through second wind chamber 102, and at this in-process, high temperature flue gas can not enter into first wind chamber 101 in, can not contact with heat dissipation wheel 20, can reduce the heat transfer to heat dissipation wheel 20 of high temperature flue gas, and heat dissipation wheel 20 operation is reliable, is favorable to promoting the radiating effect. Also, the heat dissipation wheel 20 is disposed between the impeller 30 and the motor 40, that is, the motor 40 is not in the second air chamber 102, and may be spaced apart from the high-temperature second air chamber 102 by a chamber wall between the first air chamber 101 and the second air chamber 102. Therefore, high-temperature flue gas can not be directly blown to the motor 40, heat transfer to the motor 40 can be reduced, the heat quantity born by the motor 40 is reduced, heat dissipation to the motor 40 can be improved by the heat dissipation wheel 20, and the working reliability of the motor 40 is improved.
According to the fan assembly 100 of the embodiment of the invention, the first air cavity 101 and the second air cavity 102 which are spaced apart are arranged in the casing 10, and the heat dissipation wheel 20 is arranged between the impeller 30 and the motor 40, so that the motor 40 can be effectively prevented from being subjected to heat radiation of high-temperature flue gas, the ambient temperature around the motor 40 can be reduced, the heat dissipation of the motor 40 is quickened, and the motor 40 is prevented from overheating.
In the related art, the rotation axis of the blower part extends in the vertical direction, and since the dimension of the blower part perpendicular to the rotation axis direction is larger than the width in the rotation axis direction, the thickness in the horizontal direction of the device having the blower part is required to be large enough to achieve the installation of the blower part. While according to some embodiments of the present invention, as shown in fig. 1-3, the rotational axes of the motor 40, the impeller 30 and the heat dissipation wheel 20 may extend in a horizontal direction, the device having the fan assembly 100 has a thickness of only the width of the fan assembly 100, a small size, and the fan assembly 100 is convenient to install.
In addition, the second air inlet 105 can be arranged at the lower part of the casing 10, the second air outlet 106 can be arranged at the upper part of the casing 10, high-temperature flue gas directly enters the second air cavity 102 from the second air inlet 105 and is then discharged outdoors from the second air outlet 106, no elbow loss exists in a high-temperature flue gas flowing path, and the wind resistance effect is better.
As shown in fig. 1, in some embodiments of the present invention, the first air inlet 103 may be disposed at a side portion of the casing 10, and the first air outlet 104 may be disposed at an upper portion of the casing 10, so that during operation of the fan assembly 100, cold air that is not subjected to heat radiation of high temperature flue gas on a side far away from the second air chamber 102 enters the first air chamber 101 from the first air inlet 103 without interruption, and is discharged from the first air outlet 104, so that air in the first air chamber 101 is in a flowing state and is kept at a lower temperature all the time and is not affected by heat radiation of high temperature flue gas in the second air chamber 102, and therefore, air disturbed by the heat dissipation wheel 20 is always cold air, and a heat dissipation effect of the motor 40 is more obvious.
According to some embodiments of the invention, the motor 40 may include: a motor body 401 and a drive shaft 402. The motor body 401 is provided outside the casing 10, and the motor body 401 drives the impeller 30 and the heat dissipation wheel 20 via the drive shaft 402. Therefore, the motor main body 401 is not only farther away from the high-temperature second air cavity 102, but also is not positioned in the first air cavity 101 influenced by the heat radiation of the second air cavity 102, the ambient temperature of the motor main body 401 is relatively lower, the influence of high-temperature flue gas on the temperature of the motor main body 401 is further reduced, and the overheat prevention effect is better.
Further, as shown in fig. 1, the side portion of the casing 10 may be provided with a mounting hole 107, and the motor main body 401 is disposed at the mounting hole 107 in a clearance fit manner to form a first air inlet 103, and cold air enters the first air cavity 101 from the first air inlet 103, so that air intake is smooth, flow of the cold air is ensured, and the structure is simple.
The extent of the fit-up gap of the motor body 401 and the mounting hole 107 may be flexibly designed according to practical situations, alternatively, according to some embodiments of the present invention, the width of the fit-up gap of the motor body 401 and the mounting hole 107 may be 2mm-5mm. Therefore, the width of the fit clearance is not too small, so that the cold air can enter the first air cavity 101 more smoothly, and the fit clearance is not too large, so that the motor main body 401 and the mounting hole 107 are more firmly and reliably connected. For example, in some embodiments of the present invention, the width of the mating gap may be 3mm, 3.5mm, 4mm, 4.5mm, etc., respectively.
In some embodiments of the present invention, referring to fig. 1 and 2, a plurality of mounting portions 403 may be provided on an outer circumferential edge of a motor body 401, the plurality of mounting portions 403 may be spaced apart along a circumferential direction of the motor body 401, and the mounting portions 403 may be connected to the casing 10 by a screw fastener, so that the motor body 401 is more firmly connected to the casing 10, and the connection is simple and easy to install. It should be noted that, in the specific embodiment shown in fig. 1, the number of the mounting portions 403 is not limited, and in this embodiment, the number of the mounting portions 403 may be flexibly set according to needs, so long as the requirement of firm and reliable connection between the motor main body 401 and the housing 10 is satisfied. The connection between the mounting portion 403 of the motor body 401 and the housing 10 is not limited to this, and the mounting portion 403 of the motor body 401 and the housing 10 may be connected by a snap-hook structure, or may be integrally formed, for example, according to actual needs.
According to some embodiments of the present invention, the motor 40 may be a dc motor, which has high power factor, is more energy-saving, has adjustable rotation speed, and has stronger wind resistance, so that the fan assembly 100 works more stably and reliably, and has stronger flexibility and more energy-saving.
Further, as shown in fig. 1, the casing 10 may include: fume collecting hood 11, cover plate 12 and heat insulating board 13. Cover plate 12 may be disposed on one side of fume collecting hood 11, heat insulating plate 13 may be disposed between fume collecting hood 11 and cover plate 12, heat insulating plate 13 may partition the space between fume collecting hood 11 and cover plate 12 into first air chamber 101 and second air chamber 102, and motor 40 may be connected to cover plate 12. Therefore, after the high-temperature flue gas enters the second air cavity 102, the risk of flue gas leakage can be effectively prevented through double sealing and isolation of the heat insulation plate 13 and the cover plate 12. In addition, the heat insulation plate 13 can effectively prevent the high-temperature flue gas in the second air cavity 102 from radiating heat to the cold air in the first air cavity 101, which is beneficial to preventing the motor 40 from overheating.
As shown in fig. 2 and 3, the gas water heater 110 according to an embodiment of the present invention may include: the housing 50, the gas burner 60, the heat exchanger 70, and the fan assembly 100 according to an embodiment of the present invention.
The housing 50 defines a mounting cavity 501 therein, the gas burner 60 and the heat exchanger 70 are disposed within the mounting cavity 501, and the heat exchanger 70 is disposed above the gas burner 60. The gas burner 60 has a gas inlet 601, the gas inlet 601 is arranged at the lower part of the housing 50, the lower part of the housing 50 is also provided with a water inlet 701 and a water outlet 702, a bent water pipe is connected between the water inlet 701 and the water outlet 702, and the water pipe is matched with the heat exchanger 70 in the installation cavity 501 to realize heat exchange. The first air inlet 103 of the fan assembly 100 is communicated with the mounting cavity 501, the second air inlet 105 is communicated with the flue gas outlet of the heat exchanger 70, the first air outlet 104 and the second air outlet 106 are communicated with the outside, and a vent 502 communicated with the outside can be arranged on the housing 50 at a position corresponding to the fan assembly 100. The circuit control of the gas water heater 110 is supported by the power panel 80.
After the power panel 80 is connected, cold water enters the water pipe through the water inlet 701, fuel gas enters the fuel gas burner 60 through the fuel gas inlet 601, high-temperature flue gas is generated by combustion in the fuel gas burner 60, the high-temperature flue gas enters the heat exchanger 70 to exchange heat with the cold water, and hot water after heat exchange flows out through the water outlet 702. The motor 40 of the fan assembly 100 operates, and the centrifugal effect of the high-speed rotation of the impeller 30 enables high-temperature flue gas to sequentially enter the second air cavity 102 through the flue gas outlet of the heat exchanger 70 and the second air inlet 105, and then the flue gas is discharged out of the outside through the second air outlet 106, so that the structure design is reasonable, and the leakage of the flue gas can be effectively avoided. Meanwhile, the heat dissipation wheel 20 rotates at a high speed, and the cooling air enters the mounting cavity 501 through the ventilation hole 502, then enters the first air cavity 101 through the first air inlet 103, and finally is discharged from the outside through the first air outlet 104, so that the sufficient flow and smooth flow of the cooling air entering the first air cavity 101 through the first air inlet 103 are ensured.
In one particular embodiment shown in fig. 2, the rotational axes of the motor 40, impeller 30, and heat sink 20 extend in a horizontal direction, the heat sink 20 is located between the motor 40 and impeller 30, and the motor 40 is on the side remote from the vent 502. Of course, the mounting direction of the fan assembly 100 may be reversed, for example, in another embodiment shown in fig. 3, the rotation axes of the motor 40, the impeller 30 and the heat dissipation wheel 20 extend in the horizontal direction, the heat dissipation wheel 20 is located between the motor 40 and the impeller 30, and the motor 40 is located at a side close to the ventilation hole 502, so as to be more beneficial to the ventilation of the cool air.
Since the fan assembly 100 according to the embodiment of the present invention has the above-mentioned beneficial technical effects, the gas water heater 110 according to the embodiment of the present invention also has corresponding technical effects, and can effectively prevent the motor 40 from being subjected to heat radiation of high-temperature flue gas, reduce the ambient temperature around the motor 40, accelerate the heat dissipation of the motor 40, and prevent the motor 40 from overheating.
Other configurations and operations of the gas water heater 110 and the fan assembly 100 according to embodiments of the present invention will be apparent to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present invention, 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 invention will be understood in specific cases by those of ordinary skill in the art.
In the description herein, reference to the terms "embodiment," "specific embodiment," "example," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples without interference or conflict.
Claims (9)
1. A fan assembly for a gas water heater, comprising:
the device comprises a shell, wherein a first air cavity and a second air cavity are defined in the shell at intervals, the first air cavity is provided with a first air inlet and a first air outlet, and the second air cavity is provided with a second air inlet and a second air outlet;
the heat dissipation wheel is arranged in the first air cavity;
the impeller is arranged in the second air cavity;
the motor is arranged on the shell, the heat dissipation wheel is positioned between the impeller and the motor, and a driving shaft of the motor is sequentially connected with the heat dissipation wheel and the impeller;
the casing includes:
a fume collecting hood;
the cover plate is covered on one side of the fume collecting hood;
the heat insulation plate is arranged between the fume collecting hood and the cover plate, so that the space between the fume collecting hood and the cover plate is divided into a first air cavity and a second air cavity, and the motor is connected with the cover plate.
2. The fan assembly for a gas water heater according to claim 1, wherein the rotational axes of the motor, the impeller and the heat dissipation wheel extend in a horizontal direction, the second air inlet is provided at a lower portion of the housing, and the second air outlet is provided at an upper portion of the housing.
3. The fan assembly for a gas water heater according to claim 2, wherein the first air inlet is provided at a side portion of the housing, and the first air outlet is provided at an upper portion of the housing.
4. A fan assembly for a gas water heater as claimed in claim 3, wherein the motor comprises:
the motor main body and the driving shaft, the motor main body is arranged on the outer side of the shell.
5. The fan assembly for a gas water heater according to claim 4, wherein a side portion of the housing is provided with a mounting hole, and the motor body is clearance-fittingly provided at the mounting hole to form the first air intake.
6. The fan assembly for a gas water heater according to claim 5, wherein the motor body is provided at a peripheral edge thereof with a plurality of mounting portions provided at intervals along a peripheral direction thereof, and the mounting portions are connected to the housing by screw fasteners.
7. The fan assembly for a gas water heater according to claim 5, wherein the fit gap of the motor body and the mounting hole has a width of 2mm-5mm.
8. The fan assembly for a gas water heater as recited in claim 1, wherein the motor is a dc motor.
9. A gas water heater, comprising:
a housing defining a mounting cavity therein;
the gas burner is arranged in the mounting cavity;
a heat exchanger disposed within the mounting cavity and above the gas burner;
the fan assembly for a gas water heater according to any one of claims 1-8, wherein the first air inlet communicates with the mounting cavity, the second air inlet communicates with a flue gas outlet of the heat exchanger, and the first air outlet and the second air outlet communicate with the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710771342.7A CN109424558B (en) | 2017-08-31 | 2017-08-31 | Gas water heater and fan assembly for gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710771342.7A CN109424558B (en) | 2017-08-31 | 2017-08-31 | Gas water heater and fan assembly for gas water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109424558A CN109424558A (en) | 2019-03-05 |
| CN109424558B true CN109424558B (en) | 2024-04-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710771342.7A Active CN109424558B (en) | 2017-08-31 | 2017-08-31 | Gas water heater and fan assembly for gas water heater |
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| CN (1) | CN109424558B (en) |
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| CN201027706Y (en) * | 2007-01-20 | 2008-02-27 | 李锦标 | Fan |
| CN201991808U (en) * | 2011-03-14 | 2011-09-28 | 蔡展光 | Pipeline fan |
| CN204113756U (en) * | 2014-09-18 | 2015-01-21 | 上海通用风机股份有限公司 | A kind of high temperature centrifugal blower being furnished with heat-dissipating impeller and insulating interlayer |
| CN104314847A (en) * | 2014-10-15 | 2015-01-28 | 洛阳北玻台信风机技术有限责任公司 | High-speed high-temperature fan for kiln furnace heating circulation |
| CN205423232U (en) * | 2016-03-21 | 2016-08-03 | 东莞市全风环保设备有限公司 | High -temperature resistance fan |
| CN205423237U (en) * | 2016-03-21 | 2016-08-03 | 东莞市全风环保设备有限公司 | High voltage ring fan that appears |
| CN206398805U (en) * | 2016-12-23 | 2017-08-11 | 芜湖美的厨卫电器制造有限公司 | Smoke exhaust fan and smoke evacuation system and gas heater for gas heater |
| CN207161354U (en) * | 2017-08-31 | 2018-03-30 | 芜湖美的厨卫电器制造有限公司 | Gas heater and the fan assembly for gas heater |
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| US6398512B2 (en) * | 1999-09-17 | 2002-06-04 | Dale Stewart | Method and apparatus for cooling and expelling exhaust gases from a water heater |
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| CN2197489Y (en) * | 1994-06-10 | 1995-05-17 | 天津市通风机厂 | High temperature axial flow fan |
| CN200954320Y (en) * | 2006-10-01 | 2007-10-03 | 管印贵 | Drum-type centrifugal pipeline fire-extinguishing smoke-exhausting fan |
| CN201027706Y (en) * | 2007-01-20 | 2008-02-27 | 李锦标 | Fan |
| CN201991808U (en) * | 2011-03-14 | 2011-09-28 | 蔡展光 | Pipeline fan |
| CN204113756U (en) * | 2014-09-18 | 2015-01-21 | 上海通用风机股份有限公司 | A kind of high temperature centrifugal blower being furnished with heat-dissipating impeller and insulating interlayer |
| CN104314847A (en) * | 2014-10-15 | 2015-01-28 | 洛阳北玻台信风机技术有限责任公司 | High-speed high-temperature fan for kiln furnace heating circulation |
| CN205423232U (en) * | 2016-03-21 | 2016-08-03 | 东莞市全风环保设备有限公司 | High -temperature resistance fan |
| CN205423237U (en) * | 2016-03-21 | 2016-08-03 | 东莞市全风环保设备有限公司 | High voltage ring fan that appears |
| CN206398805U (en) * | 2016-12-23 | 2017-08-11 | 芜湖美的厨卫电器制造有限公司 | Smoke exhaust fan and smoke evacuation system and gas heater for gas heater |
| CN207161354U (en) * | 2017-08-31 | 2018-03-30 | 芜湖美的厨卫电器制造有限公司 | Gas heater and the fan assembly for gas heater |
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|---|---|
| CN109424558A (en) | 2019-03-05 |
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