WO2016197902A1 - Balanced gas water heating device - Google Patents
Balanced gas water heating device Download PDFInfo
- Publication number
- WO2016197902A1 WO2016197902A1 PCT/CN2016/085041 CN2016085041W WO2016197902A1 WO 2016197902 A1 WO2016197902 A1 WO 2016197902A1 CN 2016085041 W CN2016085041 W CN 2016085041W WO 2016197902 A1 WO2016197902 A1 WO 2016197902A1
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- WIPO (PCT)
- Prior art keywords
- fan
- variable speed
- gas water
- motor
- water heater
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000010438 heat treatment Methods 0.000 title abstract description 3
- 238000002485 combustion reaction Methods 0.000 claims abstract description 25
- 238000004804 winding Methods 0.000 claims abstract description 25
- 238000004891 communication Methods 0.000 claims abstract description 9
- 239000000779 smoke Substances 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 32
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
-
- 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
- F24H9/20—Arrangement or mounting of control or safety devices
-
- 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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
Definitions
- the invention relates to a gas hot water device, in particular to a balanced gas water heater.
- Gas-fired water heaters can be mainly divided into flue-type, strong-discharge type and balanced type.
- the air required for combustion of flue-type and strong-discharge type gas-fired water heaters comes from indoors, and consumes a large amount of oxygen in the combustion process.
- the air required for the combustion of the balanced gas water heater is from the outside, and the exhaust gas is also discharged to the outside. Therefore, the balanced gas water heater has higher safety than the flue gas type and the strong exhaust gas water heater. Sex.
- such a balanced system that uses outdoor air intake and exhausts exhaust gas after combustion to the outside is widely used in the field of wall-hung boilers, and gas water heaters are gradually being promoted.
- the balanced gas water heater generally has a sealed chamber in which a combustion system and a heat exchange system are installed.
- the exhaust gas generated by the combustion is discharged to the outside through the exhaust pipe under the driving of the fan placed in the sealed chamber.
- a negative pressure environment is formed in the sealed chamber, and the outdoor environment is formed.
- Fresh air is drawn into the sealed chamber through the intake manifold. This part of the fresh air from the outside ensures that the balanced gas water heater maintains normal combustion.
- variable-speed fans are commonly used in the industry. Instead of a fixed speed fan, the variable speed fan can be adjusted according to the speed. Different fan speeds can be matched in different combustion states. Therefore, the energy consumption can be reduced to a large extent, and the noise can be reduced.
- the balanced gas water heater has an inner sealed chamber, which contains a combustion system and a heat exchange system.
- the combustion system and the heat exchange system radiate a large amount of heat during operation, which makes The temperature in the sealed chamber is relatively high, generally can reach 80 °C, and the severe working conditions may even reach 100 °C.
- most of the fan is located inside the closed chamber.
- the structure placed inside the sealed chamber keeps the variable speed fan at a relatively high temperature for a long time. After the variable speed fan is used, the electronic components of the motor control device of the variable speed fan generate heat during operation, and this part of the heat will be sealed.
- the superposition of heat in the chamber causes a large increase in the temperature of the motor control board.
- the motor of the fan generates more heat in the winding of the motor during its own operation, which also increases the risk of failure of the fan, which is common to the above factors.
- the variable speed fan easily accumulates heat beyond the limit of the variable speed fan during operation, which causes it to fail. Therefore, the above problems have great risks to the application of the variable speed fan in the balanced gas water heater to the reliability and life of the variable speed fan itself and the whole machine.
- the technical problem to be solved by the present invention is to provide a balanced gas water heater device to ensure the reliability of the operation of the whole machine.
- a balanced gas water heater includes:
- variable speed fan a heat exchange device, and a combustion device disposed inside the sealed chamber
- variable speed fan has a fan volute
- the intake passage is in communication with the combustion device and the heat exchange device, the heat exchange device is in communication with the fan volute inlet, and the fan volute outlet is connected to the exhaust passage;
- the variable speed fan further includes: a drainage device and a variable speed motor disposed outside the volute of the fan, the variable speed motor including a winding, the drainage device capable of introducing at least a portion of the air entering the intake passage into the variable speed motor And through the windings.
- variable speed motor includes a motor housing having a first end cover and a second end cover, the first end cover and the second end cover are provided with through holes, and the winding is disposed in the motor housing The airflow introduced by the drainage device can pass through the through holes in the first end cover and the second end cover.
- the first end cover and the second end cover are oppositely disposed.
- the first end cover of the motor housing faces away from the fan volute, and the second end cover of the motor housing faces the fan volute.
- the drainage device is an axial fan, and the axial fan is disposed between the motor casing and the fan volute.
- the drainage device is an axial fan, and the axial fan is disposed on a side of the variable speed motor facing away from the volute of the fan.
- cooling fan disposed between the variable speed motor and the fan volute, the cooling fan enabling airflow flowing through the winding from between the variable speed motor and the fan volute Space is scattered.
- variable speed motor is provided at the outlet of the intake passage.
- a fan control device is further included, the fan control device being disposed outside the sealed chamber.
- variable speed fan includes a Hall element electrically connected to the fan control device, and the Hall element is disposed inside the motor housing.
- the intake passage surrounds the exhaust passage arrangement.
- the intake passage and the exhaust passage are coaxially disposed and located at the top of the sealed chamber.
- the intake passage and the exhaust passage are separately disposed at the top of the sealed chamber.
- variable speed fan includes an impeller connected to the variable speed motor via a motor shaft, the variable speed motor shaft being perpendicular to an axis of the intake passage.
- variable speed fan By providing a drainage device on the variable speed fan and opening a hole in the casing of the variable speed motor, air entering the sealed chamber can enter the interior of the variable speed motor to cool the components inside the variable speed motor, and further pass
- the fan control device is externally disposed, which prevents the fan control device from blocking the airflow entering the variable speed motor, so that the air can smoothly enter the variable speed motor and pass through the winding and then flow out of the motor under the action of the drainage device, thereby forming a fan.
- the cooling "wind system" while the fan control device is disposed outside the sealed chamber, avoids the influence of the high temperature environment in the sealed chamber on the electronic components on the fan control device, and improves the reliability and life of the variable speed fan;
- the cooling fan rapidly discharges the high-temperature air flowing out of the motor from the variable speed motor and the fan volute to the sealed chamber.
- the flow rate of the cold air in the casing of the variable speed motor can be further increased, thereby increasing the cooling rate; It can avoid the temperature rise of the motor caused by the high temperature air accumulated here.
- variable speed motor is disposed at the outlet of the intake passage, so that the cold air discharged from the outlet of the intake passage can be directly blown to the motor to cool the motor.
- FIG. 1 is a schematic structural view of a specific embodiment of a balanced gas water heater according to the present application.
- Figure 2 is a perspective view of the variable speed fan of Figure 1.
- FIG. 3 is another perspective view of the variable speed fan of FIG. 1.
- FIG. 4 is a schematic structural view of a first end cover of the motor of the variable speed fan of FIG. 1.
- FIG. 5 is a schematic structural view of a second end cover of the motor of the variable speed fan of FIG. 1.
- FIG. 6 is a schematic structural view of another embodiment of a balanced gas water heater according to the present application.
- the reference numerals of the above drawings are: 1, housing; 11, sealed chamber; 2, intake passage; 3, exhaust passage; 4, variable speed fan; 41, fan volute; 411, intake end; , exhaust end; 42, variable speed motor; 421, first end cover; 4211, through hole of the first end cover; 422, second end cover; 4221, through hole of the second end cover; 43, axial flow fan; 44, cooling fan; 45, protective cover; 451, through hole; 46, fan control device; 5, heat exchange device; 6, burning device; 7, collecting hood.
- the present invention discloses a balanced gas water heater, comprising a sealed chamber 11, an intake passage 2 and a smoke exhaust passage 3 disposed on the sealed chamber 11, and a shifting speed disposed inside the sealed chamber 11.
- the intake passage 2 is in communication with the combustion device 6 and the heat exchange device 5 in sequence, the heat exchange device 5 and
- the fan volute 41 is connected to the inlet, and the outlet of the fan volute 41 is connected to the exhaust passage 3;
- the variable speed fan 4 further includes: a drainage device and a variable speed motor 42 disposed outside the fan volute 41,
- the variable speed motor 42 includes a winding that can introduce air entering the intake passage 2 at least partially into the variable speed motor 42 and through the winding.
- the variable speed motor 42 is a direct current motor.
- the variable speed motor 42 can also be an AC variable speed motor.
- the balanced gas water heater of the present application can introduce air entering the sealed chamber 11 into the variable speed motor 42 through the drain device, so that the temperature entering the sealed chamber 11 is low.
- the air exchanges heat with the windings of the variable speed motor 42 to lower the temperature of the windings of the variable speed motor 42.
- Fig. 1 is a schematic view showing a specific structure of a balanced gas water heater of the present application.
- the balanced gas water heating device comprises a casing 1 , a sealed chamber 11 is formed in the casing 1 , an intake passage 2 and a smoke exhaust passage 3 are arranged on the casing 1 , a variable speed fan 4 and a heat exchange device 5.
- the combustion device 6 and the collecting hood 7 are located in the sealed chamber 11.
- air enters the sealed chamber 11 from the intake passage 2, and flows into the combustion device 6 under the driving of the variable speed fan 4 to participate in combustion, and the high-temperature flue gas generated after the combustion passes through the heat exchange device 5 and the collecting hood.
- the variable speed fan 4 is entered, and finally discharged from the exhaust passage 3 to the outside under the driving of the variable speed fan 4.
- the intake passage 2 and the exhaust passage 3 may be respectively disposed at the top of the sealed chamber 11 .
- the intake passage 2 is coaxially sleeved outside the exhaust passage 3 and surrounds the exhaust passage 3 .
- the intake passage 2 and/or the exhaust passage 3 may not be disposed at the top of the sealed chamber 11 as long as the intake passage 2 can introduce outdoor air into the sealed chamber 11 to exhaust smoke.
- the passage 3 can discharge the flue gas generated by the combustion out of the sealed chamber 11.
- the balanced gas water heater further includes a variable speed fan 4.
- the variable speed fan 4 includes a variable speed motor 42, an impeller, a fan volute 41 that is disposed outside the impeller, an intake end 411 of the fan volute 41, and the heat exchange device. 5 communicating, the exhaust end 412 of the fan volute 41 passes out of the sealed chamber 11 and communicates with the exhaust passage 3.
- the impeller of the variable speed fan 4 is rotating, the flue gas generated by the combustion flows into the exhaust duct 3 through the fan volute 41.
- the balanced gas water heater further includes a collecting hood 7 disposed between the variable speed fan 4 and the heat exchange device 5 and having one end connected to the heat exchange device 5, The other end is in communication with the intake end 411 of the variable speed fan 4, and the fume collecting hood 7 can collect the flue gas after the heat exchange and discharge the flue gas through the variable speed fan 4.
- the variable speed fan 4 also includes a drainage device. The draining device is disposed inside the sealed chamber 11 and is adapted to the variable speed motor 42 to introduce at least a portion of the cold air entering the sealed chamber 11 through the intake passage into the variable speed motor 42. In the present embodiment, referring to FIGS.
- the variable speed motor 42 includes a motor housing having a first end cap 421 and a second end cap 422, the first end cap 421 and the second end.
- the cover 422 is provided with a through hole, and the winding is disposed in the motor casing, and the airflow introduced by the drainage device can pass through the through hole 4211 on the first end cover 421 and the second end cover 422 Through hole 4221.
- the first end cover 421 of the variable speed motor 42 faces away from the fan volute 41, and the second end of the variable speed motor 42 Cover 422 faces the fan volute 41.
- the flow guiding device includes an axial flow fan 43 disposed on a side of the variable speed motor 42 facing away from the fan volute 41, that is, the air sucked by the axial flow fan 43 from the motor housing
- a through hole 4211 in the one end cover 421 enters the inside of the motor casing and is discharged from the through hole 4221 on the second end cover 422 of the motor casing after passing through the winding of the variable speed motor 42.
- the cold air entering the motor casing exchanges heat with the windings of the variable speed motor 42 to carry heat from the windings of the variable speed motor 42 away from the motor casing.
- the through hole 4211 of the first end cover 421 and the second end cover 422 are oppositely disposed, and the airflow introduced through the drainage device is through the through hole on the first end cover 421. 4211 flows into the motor casing and flows out of the motor casing from the through hole 4221 on the second end cover 422.
- the first end cover 421 of the motor housing faces away from the fan volute 41
- the second end cover 422 of the motor housing faces the fan volute 41 into the motor
- the cold air within the outer casing can generally pass linearly through the windings of the variable speed motor 42 to increase the flow rate of air within the motor casing and enhance the cooling effect.
- variable speed fan 4 further includes a protective cover 45 which is disposed outside the motor casing and mainly functions to prevent dust introduced from the air entering from the air inlet passage 2 from falling into the motor. And the surface of the drainage device affects its performance.
- the protective cover 45 is provided with a plurality of through holes 451 which function mainly for the air to flow to the variable speed motor 42.
- the balanced gas water heater may further include a heat dissipation fan 44 disposed between the variable speed motor 42 and the fan volute 41, and the heat dissipation fan 44 can flow through the winding
- the high temperature airflow is dissipated from the space between the variable speed motor 42 and the fan volute 41.
- the setting of the cooling fan can further increase the flow rate of the cold air in the motor casing, thereby increasing the cooling rate; on the other hand, the temperature rise of the high temperature air accumulated therein can be avoided.
- the motor shaft of the variable speed motor 42 is perpendicular to the axis of the intake passage 2, so that cold air flowing out from the outlet of the intake passage 2 can be blown toward the motor and the fan worm
- the space between the shells blows off the high-temperature air flowing out of the variable speed motor 42 and accumulated therein to reduce the temperature rise of the high-temperature air to the motor.
- the balanced gas water heater further includes a fan control unit 46 located outside the sealed chamber 11 to remove the fan control unit 46 from the interior of the variable speed motor 42 and place it in the sealed chamber 11
- the external part can not only solve the problem of failure of the electronic components on the fan control device running in the high temperature sealed cavity for a long time, but also can prevent the fan control device 46 from blocking the airflow entering the internal variable speed motor 42 so that the air is drained.
- the device smoothly enters the variable speed motor 42 and passes through the winding to flow out of the variable speed motor 42. This formed a cooling "wind system.”
- the balanced gas water heater further includes a Hall element for monitoring the variable speed motor 42 inside the variable speed motor 42, wherein the Hall element and the fan control device pass the wire Electrical connection. Retaining the Hall element inside the variable speed motor 42 is primarily to ensure the reliability of the variable speed fan speed monitoring.
- the axial fan 43 is disposed between the motor housing and the fan volute 41. Similar to the previous embodiment, the air introduced by the axial fan 43 enters the inside of the motor casing from the through hole 4211 in the first end cover 421 of the motor casing, and flows through the winding of the variable speed motor 42. Thereafter, it flows out from the through hole 4221 on the second end cover 422 of the motor casing.
- the through hole 4211 on the first end cover 421 and the through hole 4221 on the second end cover 422 may be 2, 3, 4 or even more to further increase the entry.
- the flow of air inside the motor casing increases the cooling effect.
- the intake passage 2 may be disposed opposite to the shifting motor 42, so that the cold air discharged from the outlet of the intake passage 2 is directly blown to the shifting motor 42, which is not only convenient.
- the drainage device performs drainage and can cool the motor.
- the intake passage 2 and the exhaust passage 3 are at the top of the sealed chamber 11 and are offset from each other.
- the variable speed motor 42 is disposed opposite to the air outlet of the intake passage 2.
- the relative arrangement here means that the outlet of the intake duct is substantially opposite to the through hole on the motor casing, and the rotating shaft of the variable speed motor 42 is parallel to the exhaust passage 3, which can improve the flow of cold air through the motor. The rate increases the cooling effect.
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Abstract
Disclosed is a balanced gas water heating device, comprising a sealed chamber (11), and an air inlet duct (2) and a smoke discharge duct (3) which are provided on the sealed chamber (11); and a variable-speed fan (4), a heat exchanging device (5) and a combustion device (6) which are provided inside the sealed chamber (11). The variable-speed fan (4) has a fan volute (41). The air inlet duct (2) is in communication with the combustion device (6) and the heat exchanging device (5) successively, the heat exchanging device (5) is in communication with an inlet of the fan volute (41), and an outlet of the fan volute (41) is in communication with the smoke discharge duct (3). The variable-speed fan (4) further comprises: a drainage device and a variable-speed motor (42) which are provided on an external part of the fan volute (41), wherein the variable-speed motor (42) comprises a winding, the drainage device can lead at least part of the air entering the air inlet duct (2) into the variable-speed motor (42) and make the same pass through the winding, and a fan control device (46) is provided on an external part of the sealed chamber. The application of the structure enables the air entering the sealed chamber (11) to flow into the interior of the fan and pass through the fan winding, and the fan control device (46) is provided outside the inner sealed chamber to improve the service life of electronic elements of the fan control device (46), thereby improving the reliability and service life of the overall machine.
Description
交叉参考相关引用Cross reference related reference
本申请要求2015年6月9日提交的申请号为201510314396.1的中国专利申请的优先权,上述申请参考并入本文。The present application claims the priority of the Chinese Patent Application No. 201510314396.1, filed on Jun.
本发明涉及一种燃气热水装置,尤其涉及一种平衡式燃气热水装置。The invention relates to a gas hot water device, in particular to a balanced gas water heater.
燃气热水装置主要可以分为烟道式、强排式和平衡式,烟道式和强排式燃气热水装置燃烧所需的空气均来自于室内,在燃烧过程中会消耗室内大量的氧气,而平衡式燃气热水装置燃烧所需的空气来自于室外,同时废气也排放至室外,因此,平衡式燃气热水装置相对烟道式和强排式的燃气热水装置具备较高的安全性。目前,这种由室外进气并将燃烧后产生的废气排至室外的平衡式系统在壁挂炉领域内应用非常广泛,燃气热水器中也渐渐开始推广。Gas-fired water heaters can be mainly divided into flue-type, strong-discharge type and balanced type. The air required for combustion of flue-type and strong-discharge type gas-fired water heaters comes from indoors, and consumes a large amount of oxygen in the combustion process. The air required for the combustion of the balanced gas water heater is from the outside, and the exhaust gas is also discharged to the outside. Therefore, the balanced gas water heater has higher safety than the flue gas type and the strong exhaust gas water heater. Sex. At present, such a balanced system that uses outdoor air intake and exhausts exhaust gas after combustion to the outside is widely used in the field of wall-hung boilers, and gas water heaters are gradually being promoted.
平衡式燃气热水装置一般具有密封腔室,密封腔室内安装燃烧系统和热交换系统。在平衡式燃气热水装置运行过程中,其燃烧产生的废气在置于密封腔室内的风机的驱动下经排烟管排放至室外,此时,密封腔室内形成了一个负压环境,室外的新鲜空气会通过进气管被吸入密封腔体内,这部分来自于室外的新鲜空气可以保证平衡式燃气热水装置保持正常的燃烧。The balanced gas water heater generally has a sealed chamber in which a combustion system and a heat exchange system are installed. During the operation of the balanced gas water heater, the exhaust gas generated by the combustion is discharged to the outside through the exhaust pipe under the driving of the fan placed in the sealed chamber. At this time, a negative pressure environment is formed in the sealed chamber, and the outdoor environment is formed. Fresh air is drawn into the sealed chamber through the intake manifold. This part of the fresh air from the outside ensures that the balanced gas water heater maintains normal combustion.
风机作为燃气热水装置的一个重要部件,对于整个系统的运行起着十分关键的作用。目前,定速风机由于结构简单,制造方便,在燃气热水行业内应用非常广泛,但是其在使用过程中存在中小负荷段热效率低、噪声大等问题,这主要是因为机器在中小负荷段燃烧时,大量的燃烧热量被较高转速的定速风机排出机器,热交换系统没有较好地利用这部分热量,导致热效率降低,浪费了能源,为了解决这一问题,行业内普遍采用变速风机来替代定速风机,变速风机由于转速可以调节,在不同的燃烧状态下会有不同的风机转速与之匹配,因此,可以在较大程度上降低能源消耗,而且能起到降低噪声的效果。As an important part of the gas water heater, the fan plays a key role in the operation of the entire system. At present, the fixed speed fan is widely used in the gas hot water industry due to its simple structure and convenient manufacture. However, in the process of use, there are problems such as low thermal efficiency and large noise in the middle and small load sections, mainly because the machine burns in the middle and small load sections. When a large amount of combustion heat is discharged to the machine by a higher-speed fixed-speed fan, the heat exchange system does not make good use of this part of the heat, resulting in reduced thermal efficiency and wasted energy. To solve this problem, variable-speed fans are commonly used in the industry. Instead of a fixed speed fan, the variable speed fan can be adjusted according to the speed. Different fan speeds can be matched in different combustion states. Therefore, the energy consumption can be reduced to a large extent, and the noise can be reduced.
目前,在平衡式燃气热水装置中应用变速风机的产品还比较少,尤其在壁挂炉行业
中更为突出,其主要原因是因为平衡式燃气热水装置具有内密封腔室,其内部包含燃烧系统和换热系统,燃烧系统和换热系统在运行过程中会辐射出大量热量,这使得密封腔室内的温度较高,一般情况下可以达到80℃左右,恶劣工况甚至会到100℃左右,在平衡式燃气热水装置中,风机大部分位于密闭腔室的内部,这种将风机置于密封腔室内部的结构使得变速风机长期保持在较高的温度,在采用变速风机后,变速风机的电机控制装置的电子元器件在运行过程中也会产生热量,这部分热量会和密封腔室内的热量叠加导致电机控制板的温度大幅增加,此外,风机的电机在自身的运行过程中电机的绕组也会产生较多热量,这也增大了风机失效的风险,在上述因素的共同作用下,变速风机在运行过程中容易累积超出变速风机极限的热量,从而导致其失效。因此,上述问题对于变速风机在平衡式燃气热水装置中的应用对变速风机本身以及整机的可靠性和寿命都存在很大的风险。At present, there are still relatively few products that use variable speed fans in balanced gas water heaters, especially in the wall-hung boiler industry.
The main reason is that the balanced gas water heater has an inner sealed chamber, which contains a combustion system and a heat exchange system. The combustion system and the heat exchange system radiate a large amount of heat during operation, which makes The temperature in the sealed chamber is relatively high, generally can reach 80 °C, and the severe working conditions may even reach 100 °C. In the balanced gas water heater, most of the fan is located inside the closed chamber. The structure placed inside the sealed chamber keeps the variable speed fan at a relatively high temperature for a long time. After the variable speed fan is used, the electronic components of the motor control device of the variable speed fan generate heat during operation, and this part of the heat will be sealed. The superposition of heat in the chamber causes a large increase in the temperature of the motor control board. In addition, the motor of the fan generates more heat in the winding of the motor during its own operation, which also increases the risk of failure of the fan, which is common to the above factors. Under the action, the variable speed fan easily accumulates heat beyond the limit of the variable speed fan during operation, which causes it to fail. Therefore, the above problems have great risks to the application of the variable speed fan in the balanced gas water heater to the reliability and life of the variable speed fan itself and the whole machine.
发明内容Summary of the invention
为了克服现有技术的上述缺陷,本发明所要解决的技术问题是提供了一种平衡式燃气热水装置,以保证整机运行的可靠性。In order to overcome the above-mentioned drawbacks of the prior art, the technical problem to be solved by the present invention is to provide a balanced gas water heater device to ensure the reliability of the operation of the whole machine.
本发明的技术方案具体如下:The technical solution of the present invention is specifically as follows:
一种平衡式燃气热水装置,包括:A balanced gas water heater includes:
密封腔室;Sealing chamber;
设置于所述密封腔室上的进气通道和排烟通道;An intake passage and a smoke exhaust passage disposed on the sealed chamber;
设置于所述密封腔室内部的变速风机、换热装置、燃烧装置;a variable speed fan, a heat exchange device, and a combustion device disposed inside the sealed chamber;
所述变速风机具有风机蜗壳;The variable speed fan has a fan volute;
所述进气通道依次与所述燃烧装置和所述换热装置连通,所述换热装置与所述风机蜗壳入口连通,所述风机蜗壳出口与排烟通道连通;The intake passage is in communication with the combustion device and the heat exchange device, the heat exchange device is in communication with the fan volute inlet, and the fan volute outlet is connected to the exhaust passage;
所述变速风机还包括:设置于所述风机蜗壳外部的引流装置和变速电机,所述变速电机包括绕组,所述引流装置能将进入所述进气通道的空气至少部分引入所述变速电机并穿过所述绕组。The variable speed fan further includes: a drainage device and a variable speed motor disposed outside the volute of the fan, the variable speed motor including a winding, the drainage device capable of introducing at least a portion of the air entering the intake passage into the variable speed motor And through the windings.
优选地,所述变速电机包括具有第一端盖和第二端盖的电机外壳,所述第一端盖与所述第二端盖开有通孔,所述绕组置于所述电机外壳内,所述引流装置引入的气流能穿过所述第一端盖和所述第二端盖上的通孔。Preferably, the variable speed motor includes a motor housing having a first end cover and a second end cover, the first end cover and the second end cover are provided with through holes, and the winding is disposed in the motor housing The airflow introduced by the drainage device can pass through the through holes in the first end cover and the second end cover.
优选地,所述第一端盖和所述第二端盖相对设置。
Preferably, the first end cover and the second end cover are oppositely disposed.
优选地,所述电机外壳的第一端盖背对所述风机蜗壳,所述电机外壳的第二端盖面向所述风机蜗壳。Preferably, the first end cover of the motor housing faces away from the fan volute, and the second end cover of the motor housing faces the fan volute.
优选地,所述引流装置为轴流风扇,所述轴流风扇设置于所述电机外壳与所述风机蜗壳之间。Preferably, the drainage device is an axial fan, and the axial fan is disposed between the motor casing and the fan volute.
优选地,所述引流装置为轴流风扇,所述轴流风扇设置于所述变速电机背对所述风机蜗壳的一侧。Preferably, the drainage device is an axial fan, and the axial fan is disposed on a side of the variable speed motor facing away from the volute of the fan.
优选地,还包括设置于所述变速电机与所述风机蜗壳之间的散热风扇,所述散热风扇能使得流过所述绕组的气流从所述变速电机与所述风机蜗壳之间的空间散出。Preferably, further comprising a cooling fan disposed between the variable speed motor and the fan volute, the cooling fan enabling airflow flowing through the winding from between the variable speed motor and the fan volute Space is scattered.
优选地,所述变速电机设于所述进气通道出口处。Preferably, the variable speed motor is provided at the outlet of the intake passage.
优选地,还包括风机控制装置,所述风机控制装置设置于所述密封腔室的外部。Preferably, a fan control device is further included, the fan control device being disposed outside the sealed chamber.
优选地,所述变速风机包括与所述风机控制装置电性连接的霍尔元件,所述霍尔元件设置于所述电机外壳的内部。Preferably, the variable speed fan includes a Hall element electrically connected to the fan control device, and the Hall element is disposed inside the motor housing.
优选地,所述进气通道包围所述排烟通道设置。Preferably, the intake passage surrounds the exhaust passage arrangement.
优选地,所述进气通道和所述排烟通道同轴设置且位于所述密封腔室的顶部。Preferably, the intake passage and the exhaust passage are coaxially disposed and located at the top of the sealed chamber.
优选地,所述进气通道与所述排烟通道分别单独设置于所述密封腔室的顶部。Preferably, the intake passage and the exhaust passage are separately disposed at the top of the sealed chamber.
优选地,所述变速风机包括叶轮,所述叶轮通过电机轴与所述变速电机相连,所述变速电机轴与所述进气通道的轴线相垂直。Preferably, the variable speed fan includes an impeller connected to the variable speed motor via a motor shaft, the variable speed motor shaft being perpendicular to an axis of the intake passage.
本发明采用以上结构,具有以下优点:The present invention adopts the above structure and has the following advantages:
1、通过在所述变速风机上设置引流装置,并在变速电机外壳上开孔,能够使得进入所述密封腔室内的空气进入变速电机内部,对变速电机内部的部件进行降温,进一步的通过将风机控制装置外置,避免了风机控制装置对进入所述变速电机内部的气流的阻挡,使得空气在引流装置的作用下能够流畅的进入变速电机并穿过绕组进而流出电机,由此形成了一个降温的“风系统”,同时风机控制装置设置于密封腔室的外部避免了密封腔室中的高温环境对于风机控制装置上电子元器件的影响,提升了变速风机运行的可靠性和寿命;1. By providing a drainage device on the variable speed fan and opening a hole in the casing of the variable speed motor, air entering the sealed chamber can enter the interior of the variable speed motor to cool the components inside the variable speed motor, and further pass The fan control device is externally disposed, which prevents the fan control device from blocking the airflow entering the variable speed motor, so that the air can smoothly enter the variable speed motor and pass through the winding and then flow out of the motor under the action of the drainage device, thereby forming a fan. The cooling "wind system", while the fan control device is disposed outside the sealed chamber, avoids the influence of the high temperature environment in the sealed chamber on the electronic components on the fan control device, and improves the reliability and life of the variable speed fan;
2、散热风扇将流出电机的高温空气从变速电机与风机蜗壳之间快速排至密封腔室中,一方面可以进一步提高冷空气在变速电机外壳内的流速,从而提高降温速率;另一方面,可以避免积聚在此处的高温空气对电机的温升作用。2. The cooling fan rapidly discharges the high-temperature air flowing out of the motor from the variable speed motor and the fan volute to the sealed chamber. On the one hand, the flow rate of the cold air in the casing of the variable speed motor can be further increased, thereby increasing the cooling rate; It can avoid the temperature rise of the motor caused by the high temperature air accumulated here.
3、将所述变速电机设于所述进气通道出口处,可以使得自所述进气通道出口排出的冷空气直接吹向电机,对电机起到降温作用。
3. The variable speed motor is disposed at the outlet of the intake passage, so that the cold air discharged from the outlet of the intake passage can be directly blown to the motor to cool the motor.
在此描述的附图仅用于解释目的,而不意图以任何方式来限制本发明公开的范围。另外,图中的各部件的形状和比例尺寸等仅为示意性的,用于帮助对本发明的理解,并不是具体限定本发明各部件的形状和比例尺寸。本领域的技术人员在本发明的教导下,可以根据具体情况选择各种可能的形状和比例尺寸来实施本发明。The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. In addition, the shapes, proportions, and the like of the components in the drawings are merely illustrative and are intended to assist the understanding of the present invention and are not intended to limit the shapes and proportions of the components of the present invention. Those skilled in the art, in light of the teachings of the present invention, may choose various possible shapes and ratios to implement the present invention.
图1为本申请中平衡式燃气热水装置的一个具体实施方式的结构示意图。1 is a schematic structural view of a specific embodiment of a balanced gas water heater according to the present application.
图2为图1中变速风机的一个立体示意图。Figure 2 is a perspective view of the variable speed fan of Figure 1.
图3为图1中变速风机的另一个立体示意图。3 is another perspective view of the variable speed fan of FIG. 1.
图4为图1中变速风机的电机的第一端盖的结构示意图。4 is a schematic structural view of a first end cover of the motor of the variable speed fan of FIG. 1.
图5为图1中变速风机的电机的第二端盖的结构示意图。FIG. 5 is a schematic structural view of a second end cover of the motor of the variable speed fan of FIG. 1. FIG.
图6为本申请中平衡式燃气热水装置的另一个具体实施方式的结构示意图。6 is a schematic structural view of another embodiment of a balanced gas water heater according to the present application.
以上附图的附图标记为:1、壳体;11、密封腔室;2、进气通道;3、排烟通道;4、变速风机;41、风机蜗壳;411、进气端;412、排气端;42、变速电机;421、第一端盖;4211、第一端盖的通孔;422、第二端盖;4221、第二端盖的通孔;43、轴流风扇;44、散热风扇;45、保护罩;451、贯通孔;46、风机控制装置;5、换热装置;6、燃烧装置;7、集烟罩。The reference numerals of the above drawings are: 1, housing; 11, sealed chamber; 2, intake passage; 3, exhaust passage; 4, variable speed fan; 41, fan volute; 411, intake end; , exhaust end; 42, variable speed motor; 421, first end cover; 4211, through hole of the first end cover; 422, second end cover; 4221, through hole of the second end cover; 43, axial flow fan; 44, cooling fan; 45, protective cover; 451, through hole; 46, fan control device; 5, heat exchange device; 6, burning device; 7, collecting hood.
结合附图和本发明具体实施方式的描述,能够更加清楚地了解本发明的细节。但是,在此描述的本发明的具体实施方式,仅用于解释本发明的目的,而不能以任何方式理解成是对本发明的限制。在本发明的教导下,技术人员可以构想基于本发明的任意可能的变形,这些都应被视为属于本发明的范围。The details of the present invention can be more clearly understood from the description of the drawings and the description of the invention. However, the specific embodiments of the invention described herein are intended to be illustrative only and not to be construed as limiting the invention. Those skilled in the art can devise any possible variations based on the present invention, which are considered to be within the scope of the present invention.
本发明公开了一种平衡式燃气热水装置,包括密封腔室11,设置于所述密封腔室11上的进气通道2和排烟通道3,设置于所述密封腔室11内部的变速风机4、换热装置5、燃烧装置6,所述变速风机4具有风机蜗壳41;所述进气通道2依次与所述燃烧装置6和换热装置5连通,所述换热装置5与所述风机蜗壳41入口连通,所述风机蜗壳41出口与排烟通道3连通;所述变速风机4还包括:设置于所述风机蜗壳41外部的引流装置和变速电机42,所述变速电机42包括绕组,所述引流装置能将进入所述进气通道2的空气至少部分引入所述变速电机42并穿过所述绕组。在本实施方式中,变速电机42为直流电机。在其他实施方式中,变速电机42还可以为交流变速电机。
The present invention discloses a balanced gas water heater, comprising a sealed chamber 11, an intake passage 2 and a smoke exhaust passage 3 disposed on the sealed chamber 11, and a shifting speed disposed inside the sealed chamber 11. a fan 4, a heat exchange device 5, and a combustion device 6, the variable speed fan 4 having a fan volute 41; the intake passage 2 is in communication with the combustion device 6 and the heat exchange device 5 in sequence, the heat exchange device 5 and The fan volute 41 is connected to the inlet, and the outlet of the fan volute 41 is connected to the exhaust passage 3; the variable speed fan 4 further includes: a drainage device and a variable speed motor 42 disposed outside the fan volute 41, The variable speed motor 42 includes a winding that can introduce air entering the intake passage 2 at least partially into the variable speed motor 42 and through the winding. In the present embodiment, the variable speed motor 42 is a direct current motor. In other embodiments, the variable speed motor 42 can also be an AC variable speed motor.
本申请中的平衡式燃气热水装置可以将进入所述密封腔室11内的空气通过所述引流装置引入所述变速电机42中,从而使得进入所述密封腔室11内的温度较低的空气与所述变速电机42的绕组进行热交换,以降低所述变速电机42的绕组的温度。经过发明人多次反复试验后证明,采用本申请中的平衡式燃气热水装置,其变速风机4的故障率大幅降低。The balanced gas water heater of the present application can introduce air entering the sealed chamber 11 into the variable speed motor 42 through the drain device, so that the temperature entering the sealed chamber 11 is low. The air exchanges heat with the windings of the variable speed motor 42 to lower the temperature of the windings of the variable speed motor 42. After repeated trials and trials by the inventors, it has been proved that the failure rate of the variable speed fan 4 is greatly reduced by the balanced gas water heater of the present application.
图1示出了本申请中平衡式燃气热水装置的一个具体的结构示意图。参照图1所示,平衡式燃气热水装置包括壳体1,壳体1内形成密封腔室11,进气通道2和排烟通道3设置在壳体1上,变速风机4、换热装置5、燃烧装置6、集烟罩7位于密封腔室11内。在机器运行过程中,空气自进气通道2进入密封腔室11内,在变速风机4的驱动下流入燃烧装置6中参与燃烧,燃烧后产生的高温烟气经换热装置5、集烟罩7后进入变速风机4,最终在变速风机4的驱动下从排烟通道3排至室外。Fig. 1 is a schematic view showing a specific structure of a balanced gas water heater of the present application. Referring to FIG. 1 , the balanced gas water heating device comprises a casing 1 , a sealed chamber 11 is formed in the casing 1 , an intake passage 2 and a smoke exhaust passage 3 are arranged on the casing 1 , a variable speed fan 4 and a heat exchange device 5. The combustion device 6 and the collecting hood 7 are located in the sealed chamber 11. During the operation of the machine, air enters the sealed chamber 11 from the intake passage 2, and flows into the combustion device 6 under the driving of the variable speed fan 4 to participate in combustion, and the high-temperature flue gas generated after the combustion passes through the heat exchange device 5 and the collecting hood. After 7, the variable speed fan 4 is entered, and finally discharged from the exhaust passage 3 to the outside under the driving of the variable speed fan 4.
在本实施方式中,参照图1所示,所述进气通道2与所述排烟通道3可以分别设置于密封腔室11的顶部。所述进气通道2同轴套设在所述排烟通道3外,并包围所述排烟通道3。当然的,在其他实施方式中,进气通道2和/或排烟通道3也可以不设置在密封腔室11的顶部,只要进气通道2能将室外的空气引入密封腔室11,排烟通道3能将燃烧产生的烟气排出密封腔室11即可。In the present embodiment, referring to FIG. 1 , the intake passage 2 and the exhaust passage 3 may be respectively disposed at the top of the sealed chamber 11 . The intake passage 2 is coaxially sleeved outside the exhaust passage 3 and surrounds the exhaust passage 3 . Of course, in other embodiments, the intake passage 2 and/or the exhaust passage 3 may not be disposed at the top of the sealed chamber 11 as long as the intake passage 2 can introduce outdoor air into the sealed chamber 11 to exhaust smoke. The passage 3 can discharge the flue gas generated by the combustion out of the sealed chamber 11.
在本实施方式中,平衡式燃气热水装置还包括变速风机4。参照图2和图3所示,该变速风机4包括变速电机42、叶轮、罩设在所述叶轮外的风机蜗壳41,所述风机蜗壳41的进气端411与所述换热装置5连通,所述风机蜗壳41的排气端412穿出所述密封腔室11并与排烟通道3连通。当所述变速风机4的叶轮在转动过程中,燃烧产生的烟气通过风机蜗壳41流入排烟管道3中。在一个优选的实施方式中,该平衡式燃气热水装置还包括集烟罩7,所述集烟罩7设置与变速风机4与换热装置5之间,其一端与换热装置5连通,另一端与变速风机4的进气端411连通,所述集烟罩7能收集经过换热后的烟气并将该烟气通过所述变速风机4向外排出。所述变速风机4还包括引流装置。该引流装置设置在密封腔室11内部,并与所述变速电机42相适配,能够将通过进气通道进入所述密封腔室11内的冷空气至少部分引入所述变速电机42中。在本实施方式中,参照图4和图5所示,所述变速电机42包括具有第一端盖421和第二端盖422的电机外壳,所述第一端盖421与所述第二端盖422开有通孔,所述绕组置于所述电机外壳内,所述引流装置引入的气流能穿过所述第一端盖421上的通孔4211和所述第二端盖422上的通孔4221。所述变速电机42的第一端盖421背对风机蜗壳41,所述变速电机42的第二端
盖422面向所述风机蜗壳41。所述引流装置包括轴流风扇43,所述轴流风扇43设置于所述变速电机42背对风机蜗壳41的一侧,即所述轴流风扇43吸入的空气自所述电机外壳的第一端盖421上的通孔4211进入所述电机外壳内部,并在穿过所述变速电机42的绕组后从所述电机外壳的第二端盖422上的通孔4221排出。在本实施方式中,进入所述电机外壳内的冷空气与变速电机42的绕组进行热交换,将所述变速电机42的绕组上的热量带离该电机外壳中。In the present embodiment, the balanced gas water heater further includes a variable speed fan 4. Referring to FIGS. 2 and 3, the variable speed fan 4 includes a variable speed motor 42, an impeller, a fan volute 41 that is disposed outside the impeller, an intake end 411 of the fan volute 41, and the heat exchange device. 5 communicating, the exhaust end 412 of the fan volute 41 passes out of the sealed chamber 11 and communicates with the exhaust passage 3. When the impeller of the variable speed fan 4 is rotating, the flue gas generated by the combustion flows into the exhaust duct 3 through the fan volute 41. In a preferred embodiment, the balanced gas water heater further includes a collecting hood 7 disposed between the variable speed fan 4 and the heat exchange device 5 and having one end connected to the heat exchange device 5, The other end is in communication with the intake end 411 of the variable speed fan 4, and the fume collecting hood 7 can collect the flue gas after the heat exchange and discharge the flue gas through the variable speed fan 4. The variable speed fan 4 also includes a drainage device. The draining device is disposed inside the sealed chamber 11 and is adapted to the variable speed motor 42 to introduce at least a portion of the cold air entering the sealed chamber 11 through the intake passage into the variable speed motor 42. In the present embodiment, referring to FIGS. 4 and 5, the variable speed motor 42 includes a motor housing having a first end cap 421 and a second end cap 422, the first end cap 421 and the second end. The cover 422 is provided with a through hole, and the winding is disposed in the motor casing, and the airflow introduced by the drainage device can pass through the through hole 4211 on the first end cover 421 and the second end cover 422 Through hole 4221. The first end cover 421 of the variable speed motor 42 faces away from the fan volute 41, and the second end of the variable speed motor 42
Cover 422 faces the fan volute 41. The flow guiding device includes an axial flow fan 43 disposed on a side of the variable speed motor 42 facing away from the fan volute 41, that is, the air sucked by the axial flow fan 43 from the motor housing A through hole 4211 in the one end cover 421 enters the inside of the motor casing and is discharged from the through hole 4221 on the second end cover 422 of the motor casing after passing through the winding of the variable speed motor 42. In the present embodiment, the cold air entering the motor casing exchanges heat with the windings of the variable speed motor 42 to carry heat from the windings of the variable speed motor 42 away from the motor casing.
在一个优选的实施方式中,所述第一端盖421的通孔4211和所述第二端盖422相对设置,经所述引流装置引入的气流从所述第一端盖421上的通孔4211流入所述电机外壳内,并从所述第二端盖422上的通孔4221流出所述电机外壳。在一个更优选的实施方式中,所述电机外壳的第一端盖421背对所述风机蜗壳41,所述电机外壳的第二端盖422面向所述风机蜗壳41,进入所述电机外壳内的冷空气可以大体沿线性通过所述变速电机42的绕组,提高空气在所述电机外壳内的流速,增强降温效果。In a preferred embodiment, the through hole 4211 of the first end cover 421 and the second end cover 422 are oppositely disposed, and the airflow introduced through the drainage device is through the through hole on the first end cover 421. 4211 flows into the motor casing and flows out of the motor casing from the through hole 4221 on the second end cover 422. In a more preferred embodiment, the first end cover 421 of the motor housing faces away from the fan volute 41, and the second end cover 422 of the motor housing faces the fan volute 41 into the motor The cold air within the outer casing can generally pass linearly through the windings of the variable speed motor 42 to increase the flow rate of air within the motor casing and enhance the cooling effect.
在本实施方式中,变速风机4还包括一保护罩45,该保护罩45罩设在电机外壳的外部,其作用主要是为了防止自进气通道2进入的空气所带入的灰尘降落在电机及引流装置的表面,影响其使用性能。保护罩45上开设有多个贯通孔451,这些孔的作用主要是为了使空气流向变速电机42。In the present embodiment, the variable speed fan 4 further includes a protective cover 45 which is disposed outside the motor casing and mainly functions to prevent dust introduced from the air entering from the air inlet passage 2 from falling into the motor. And the surface of the drainage device affects its performance. The protective cover 45 is provided with a plurality of through holes 451 which function mainly for the air to flow to the variable speed motor 42.
在一个优选的实施方式中,平衡式燃气热水装置还可以包括设置于所述变速电机42与所述风机蜗壳41之间的散热风扇44,所述散热风扇44能使得流过所述绕组的高温气流从所述变速电机42与所述风机蜗壳41之间的空间散出。散热风扇的设置一方面可以进一步提高冷空气在电机外壳内的流速,从而提高降温速率;另一方面,可以避免积聚在此处的高温空气对电机的温升作用。In a preferred embodiment, the balanced gas water heater may further include a heat dissipation fan 44 disposed between the variable speed motor 42 and the fan volute 41, and the heat dissipation fan 44 can flow through the winding The high temperature airflow is dissipated from the space between the variable speed motor 42 and the fan volute 41. On the one hand, the setting of the cooling fan can further increase the flow rate of the cold air in the motor casing, thereby increasing the cooling rate; on the other hand, the temperature rise of the high temperature air accumulated therein can be avoided.
在一个优选的实施方式中,所述变速电机42的电机轴与所述进气通道2的轴线相垂直,这样可以使得自所述进气通道2的出口流出的冷空气吹向电机与风机蜗壳之间的空间,将自所述变速电机42中流出并积聚在此处的高温空气吹离此空间,降低高温空气对电机的温升作用。In a preferred embodiment, the motor shaft of the variable speed motor 42 is perpendicular to the axis of the intake passage 2, so that cold air flowing out from the outlet of the intake passage 2 can be blown toward the motor and the fan worm The space between the shells blows off the high-temperature air flowing out of the variable speed motor 42 and accumulated therein to reduce the temperature rise of the high-temperature air to the motor.
在一个优选的实施方式中,平衡式燃气热水装置还包括位于所述密封腔室11外的风机控制装置46,将风机控制装置46从变速电机42内部移出并将其置于密封腔室11的外部不仅能够解决风机控制装置上的电子元器件长期在高温的密封腔体内运行存在的失效问题,而且能够避免风机控制装置46对进入所述变速电机42内部的气流的阻挡,使得空气在引流装置的作用下流畅的进入变速电机42并穿过绕组进而流出变速电机42,
由此形成了一个降温的“风系统”。In a preferred embodiment, the balanced gas water heater further includes a fan control unit 46 located outside the sealed chamber 11 to remove the fan control unit 46 from the interior of the variable speed motor 42 and place it in the sealed chamber 11 The external part can not only solve the problem of failure of the electronic components on the fan control device running in the high temperature sealed cavity for a long time, but also can prevent the fan control device 46 from blocking the airflow entering the internal variable speed motor 42 so that the air is drained. The device smoothly enters the variable speed motor 42 and passes through the winding to flow out of the variable speed motor 42.
This formed a cooling "wind system."
在另一个实施方式中,所述平衡式燃气热水装置还包括位于所述变速电机42内部的用于监测变速电机42的霍尔元件,其中所述霍尔元件与所述风机控制装置通过导线电性连接。将所述霍尔元件保留在变速电机42的内部主要是为了保证变速风机转速监测的可靠性。In another embodiment, the balanced gas water heater further includes a Hall element for monitoring the variable speed motor 42 inside the variable speed motor 42, wherein the Hall element and the fan control device pass the wire Electrical connection. Retaining the Hall element inside the variable speed motor 42 is primarily to ensure the reliability of the variable speed fan speed monitoring.
在另一个实施方式中,所述轴流风扇43设置于所述电机外壳与所述风机蜗壳41之间。与上一实施方式类似,所述轴流风扇43引入的空气自所述电机外壳的第一端盖421上的通孔4211进入所述电机外壳内部,并在流过所述变速电机42的绕组后从所述电机外壳的第二端盖422上的通孔4221流出。In another embodiment, the axial fan 43 is disposed between the motor housing and the fan volute 41. Similar to the previous embodiment, the air introduced by the axial fan 43 enters the inside of the motor casing from the through hole 4211 in the first end cover 421 of the motor casing, and flows through the winding of the variable speed motor 42. Thereafter, it flows out from the through hole 4221 on the second end cover 422 of the motor casing.
在本实施方式中,所述第一端盖421上的通孔4211和所述第二端盖422上的通孔4221可以为2个、3个、4个甚至更多个,以进一步增加进入该电机外壳内的空气的流量,提高降温效果。In this embodiment, the through hole 4211 on the first end cover 421 and the through hole 4221 on the second end cover 422 may be 2, 3, 4 or even more to further increase the entry. The flow of air inside the motor casing increases the cooling effect.
在另一个实施方式中,参照图6所示,进气通道2可以与变速电机42相对设置,这样可以使得自所述进气通道2的出口排出的冷空气直接吹向变速电机42,不仅便于引流装置进行引流,而且能对电机起到降温作用。In another embodiment, referring to FIG. 6, the intake passage 2 may be disposed opposite to the shifting motor 42, so that the cold air discharged from the outlet of the intake passage 2 is directly blown to the shifting motor 42, which is not only convenient. The drainage device performs drainage and can cool the motor.
在另一个实施方式中,参照图6所示,进气通道2和排烟通道3在密封腔室11的顶部并且相互错开设置。在本实施方式中,变速电机42与进气通道2的出气口相对设置。此处的相对设置是指所述进气管道的出口大体上与所述电机外壳上的通孔相对设置,变速电机42的转轴平行于排烟通道3,这种结构可以提高冷空气流过电机的速率,增强降温效果。In another embodiment, referring to Figure 6, the intake passage 2 and the exhaust passage 3 are at the top of the sealed chamber 11 and are offset from each other. In the present embodiment, the variable speed motor 42 is disposed opposite to the air outlet of the intake passage 2. The relative arrangement here means that the outlet of the intake duct is substantially opposite to the through hole on the motor casing, and the rotating shaft of the variable speed motor 42 is parallel to the exhaust passage 3, which can improve the flow of cold air through the motor. The rate increases the cooling effect.
本说明书中的各个实施例均采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似的部分互相参见即可。The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments can be referred to each other.
上述实施例只为说明本发明的技术构思及特点,其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施,并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰,都应涵盖在本发明的保护范围之内。
The above embodiments are merely illustrative of the technical concept and the features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the present invention and to implement the present invention, and the scope of the present invention is not limited thereto. Equivalent variations or modifications made in accordance with the spirit of the invention are intended to be included within the scope of the invention.
Claims (14)
- 一种平衡式燃气热水装置,包括:A balanced gas water heater includes:密封腔室;Sealing chamber;设置于所述密封腔室上的进气通道和排烟通道;An intake passage and a smoke exhaust passage disposed on the sealed chamber;设置于所述密封腔室内部的变速风机、换热装置、燃烧装置;a variable speed fan, a heat exchange device, and a combustion device disposed inside the sealed chamber;所述变速风机具有风机蜗壳;The variable speed fan has a fan volute;所述进气通道依次与所述燃烧装置和所述换热装置连通,所述换热装置与所述风机蜗壳入口连通,所述风机蜗壳出口与排烟通道连通;The intake passage is in communication with the combustion device and the heat exchange device, the heat exchange device is in communication with the fan volute inlet, and the fan volute outlet is connected to the exhaust passage;其特征在于,所述变速风机还包括:设置于所述风机蜗壳外部的引流装置和变速电机,所述变速电机包括绕组,所述引流装置能将进入所述进气通道的空气至少部分引入所述变速电机并穿过所述绕组。The variable speed fan further includes: a drainage device and a variable speed motor disposed outside the volute of the fan, the variable speed motor including a winding, the drainage device capable of introducing at least a portion of the air entering the intake passage The variable speed motor passes through the windings.
- 如权利要求1所述的平衡式燃气热水装置,其特征在于,所述变速电机包括具有第一端盖和第二端盖的电机外壳,所述第一端盖与所述第二端盖开有通孔,所述绕组置于所述电机外壳内,所述引流装置引入的气流能穿过所述第一端盖和所述第二端盖上的通孔。A balanced gas water heater according to claim 1 wherein said variable speed motor includes a motor housing having a first end cap and a second end cap, said first end cap and said second end cap A through hole is opened, and the winding is disposed in the motor casing, and the airflow introduced by the drainage device can pass through the through holes in the first end cover and the second end cover.
- 如权利要求2所述的平衡式燃气热水装置,其特征在于,所述第一端盖和所述第二端盖相对设置。A balanced gas water heater according to claim 2, wherein said first end cap and said second end cap are disposed opposite each other.
- 如权利要求2或3所述的平衡式燃气热水装置,其特征在于,所述电机外壳的第一端盖背对所述风机蜗壳,所述电机外壳的第二端盖面向所述风机蜗壳。A balanced gas water heater according to claim 2 or 3, wherein the first end cover of the motor casing faces away from the fan volute, and the second end cover of the motor casing faces the fan Volute.
- 如权利要求1所述的平衡式燃气热水装置,其特征在于,所述引流装置为轴流风扇,所述轴流风扇设置于所述电机外壳与所述风机蜗壳之间。The balanced gas water heater according to claim 1, wherein the drainage device is an axial fan, and the axial fan is disposed between the motor casing and the fan volute.
- 如权利要求1所述的平衡式燃气热水装置,其特征在于,所述引流装置为轴流风扇,所述轴流风扇设置于所述变速电机背对所述风机蜗壳的一侧。A balanced gas water heater according to claim 1, wherein said flow guiding means is an axial flow fan, and said axial flow fan is disposed on a side of said variable speed motor facing away from said volute of said fan.
- 如权利要求1或6所述的平衡式燃气热水装置,其特征在于,还包括设置于所述变速电机与所述风机蜗壳之间的散热风扇,所述散热风扇能使得流过所述绕组的气流从所述变速电机与所述风机蜗壳之间的空间散出。A balanced gas water heater according to claim 1 or 6, further comprising a heat dissipating fan disposed between said variable speed motor and said fan volute, said cooling fan being capable of flowing through said The airflow of the windings is dissipated from the space between the variable speed motor and the fan volute.
- 如权利要求1所述的平衡式燃气热水装置,其特征在于,所述变速电机设于所述进气通道出口处。A balanced gas water heater according to claim 1, wherein said variable speed motor is provided at an outlet of said intake passage.
- 如权利要求1所述的平衡式燃气热水装置,其特征在于,还包括风机控制装置,所述风机控制装置设置于所述密封腔室的外部。 A balanced gas water heater according to claim 1, further comprising a fan control device disposed outside said sealed chamber.
- 如权利要求9所述的平衡式燃气热水装置,其特征在于,所述变速风机包括与所述风机控制装置电性连接的霍尔元件,所述霍尔元件设置于所述电机外壳的内部。A balanced gas water heater according to claim 9, wherein said variable speed fan comprises a Hall element electrically connected to said fan control means, said Hall element being disposed inside said motor casing .
- 如权利要求1所述的平衡式燃气热水装置,其特征在于,所述进气通道包围所述排烟通道设置。A balanced gas water heater according to claim 1, wherein said intake passage surrounds said exhaust passage.
- 如权利要求11所述的平衡式燃气热水装置,其特征在于,所述进气通道和所述排烟通道同轴设置且位于所述密封腔室的顶部。A balanced gas water heater according to claim 11, wherein said intake passage and said exhaust passage are coaxially disposed and located at the top of said sealed chamber.
- 如权利要求1所述的平衡式燃气热水装置,其特征在于,所述进气通道与所述排烟通道分别单独设置于所述密封腔室的顶部。A balanced gas water heater according to claim 1, wherein said intake passage and said exhaust passage are separately provided at the top of said sealed chamber.
- 如权利要求1所述的平衡式燃气热水装置,其特征在于,所述变速风机包括叶轮,所述叶轮通过电机轴与所述变速电机相连,所述电机轴与所述进气通道的轴线相垂直。 A balanced gas water heater according to claim 1, wherein said variable speed fan comprises an impeller, said impeller being coupled to said variable speed motor via a motor shaft, said motor shaft and said axis of said intake passage Vertical.
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CN106403256A (en) * | 2016-09-05 | 2017-02-15 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
CN106369808A (en) * | 2016-11-09 | 2017-02-01 | 艾欧史密斯(中国)热水器有限公司 | Balance type gas-fired water heating device |
CN107762938A (en) * | 2017-12-11 | 2018-03-06 | 泰兴市宏伟机电环保科技有限公司 | A kind of centrifugal blower with air purifying function |
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