WO2020135064A1 - 风道结构 - Google Patents

风道结构 Download PDF

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Publication number
WO2020135064A1
WO2020135064A1 PCT/CN2019/124769 CN2019124769W WO2020135064A1 WO 2020135064 A1 WO2020135064 A1 WO 2020135064A1 CN 2019124769 W CN2019124769 W CN 2019124769W WO 2020135064 A1 WO2020135064 A1 WO 2020135064A1
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WO
WIPO (PCT)
Prior art keywords
volute
air
guide shell
air duct
duct structure
Prior art date
Application number
PCT/CN2019/124769
Other languages
English (en)
French (fr)
Inventor
吴剑
代南海
王海丽
刘莉
Original Assignee
青岛海高设计制造有限公司
海尔智家股份有限公司
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Publication date
Application filed by 青岛海高设计制造有限公司, 海尔智家股份有限公司 filed Critical 青岛海高设计制造有限公司
Publication of WO2020135064A1 publication Critical patent/WO2020135064A1/zh

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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
    • F24H9/0005—Details for water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • 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
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • F24H4/02—Water heaters
    • 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

Definitions

  • the invention relates to the technical field of water heaters, in particular to an air duct structure.
  • the heat pump water heater can absorb the low-temperature heat in the air, vaporize it through the fluorine medium, and then pressurize and increase the temperature after being compressed by the compressor, and then convert the water to heat by the heat exchanger.
  • the high-temperature heat energy after compression is used to heat the water temperature, with high efficiency
  • the characteristic of energy saving is that the same amount of hot water is produced, which is 4-6 times that of general electric water heaters, and the average annual thermal efficiency ratio is 4 times that of electric heating, and the energy efficiency is high.
  • the embodiment of the invention provides an air duct structure.
  • a brief summary is given below. This summary is not a general comment, nor is it to determine key/important elements or to describe the scope of protection of these embodiments. Its sole purpose is to present some concepts in a simple form as a preface to the detailed description that follows.
  • an air duct structure is provided.
  • an air duct structure includes a volute, a wind guide shell, and an exhaust ring.
  • the outlet end of the volute is connected to the intake end of the wind guide shell.
  • the air outlet of the air guide shell communicates with the inner arc surface of the exhaust ring; the periphery of the exhaust ring is provided with air guide plates, which are arc-shaped structures, and the air guide plates are uniformly bent toward the same side.
  • the installation space is divided into two parts by wind shields, so that the air intake of the air duct comes completely from the same side, that is, the side where the evaporator is installed, so that the airflow is concentrated through the evaporator, Make the air flow in the air duct exchange energy with the evaporator as much as possible, effectively improve the air guide efficiency of the air duct, and after the air guide efficiency is improved, the operating speed of the fan in the air duct can be appropriately reduced to achieve the purpose of reducing noise.
  • the volute includes a first volute and a second volute, a first volute is provided on the first volute, a centrifugal fan is embedded in the first volute, and a second volute is provided on the second volute, An air inlet is provided in the second volute, and the suction end of the centrifugal fan blade is adjacent to the air inlet.
  • the volute is divided into two parts to facilitate later maintenance of the interior of the volute, and the centrifugal fan blade corresponds to the air inlet to ensure that the airflow can enter the volute more smoothly.
  • connection part between the exhaust ring and the air outlet of the air deflector shell is provided with an air outlet, the air deflector in the air outlet penetrates the air outlet, and all parts of the exhaust ring except the air outlet are closed structures, and the air deflector is embedded in Closed structure.
  • one end of the centrifugal fan is embedded in the first volute, the embedded depth is the depth of the first volute plus one-half to three-quarters of the depth of the second volute, and between the first volute Sealed connection, the other end of the centrifugal fan is provided with bare leakage outside the first volute.
  • the centrifugal fan is partially embedded in the volute, and the volute is used to partially isolate the noise generated by the centrifugal fan to reduce the noise.
  • the embedded installation method is adopted to make the structure more compact and reduce the space. Occupancy rate.
  • the shapes of the first volute and the second volute are exactly the same, and the edges of the first volute and the second volute are provided with sealing grooves, or the edges of the first volute and the second volute A sealing groove is arranged on the edge of the sealing groove, and a sealing strip is arranged in the sealing groove, and the first volute and the second volute are fixed by screws.
  • the first volute and the second volute with the same structure are snapped together to form an integral volute, and the sealing groove and the sealing strip in the middle of the two parts can ensure that the first volute and The sealing between the second volutes prevents air leakage.
  • the air guide shell has a semicircular structure, the arc surface of the air guide shell is the air outlet, the lower side of the air guide shell is the air inlet, and the air outlet end of the air guide shell is opposite to the direction of the air inlet.
  • the semicircular structure is used to ensure that the airflow is discharged from the half side, and the outlet end of the air guide shell is opposite to the air inlet, which can ensure that the discharged cooled air will not be immediately sucked from the air inlet again. , So as to ensure that the temperature of the air sucked into the air inlet is relatively higher, and improve the utilization rate of air temperature energy.
  • a guide groove is provided on the curved edge of the wind guide shell, and a through hole is provided in the middle of the upper side of the wind guide shell.
  • the reserved guide grooves and through holes are used to provide a mounting space for the support mechanism in the heat pump water heater to facilitate the combination between the whole.
  • the inner side of the lower side of the air guide shell opposite to the air outlet end of the volute is provided with an arc-shaped air guide surface.
  • the airflow is diverted, thereby reducing wind resistance and ensuring smoother airflow.
  • one or more pipeline grooves are provided on one side of the windshield sheet, and windshield sheet installation fixing sheets are provided on both ends of the lower side of the windshield sheet.
  • the installation of the fixing plate by the windshield plate can stably fix the entire air duct structure inside the heat pump water heater, and the pipeline groove reserves an arrangement position for the pipeline inside the heat pump water heater.
  • a heat pump water heater is provided.
  • a heat pump water heater includes the air duct structure of any one of the above.
  • the wind channel structure of the heat pump water heater can be effectively improved by using the air duct structure.
  • the installation space is separated by the windshield provided on the air duct, so that the air intake of the air duct comes completely from the same side, that is, the side where the evaporator is installed, so that the airflow is concentrated
  • the evaporator makes the air flow in the air duct exchange as much energy as possible with the evaporator, effectively improving the air guide efficiency of the air duct, and after the air guide efficiency is improved, the operating speed of the fan in the air duct can be appropriately reduced to achieve the purpose of reducing noise.
  • FIG. 1 is a schematic structural diagram of an alternative embodiment of a heat pump water heater according to an exemplary embodiment
  • FIG. 2 is a schematic structural diagram of an alternative embodiment of the interior of a heat pump water heater according to an exemplary embodiment
  • Fig. 3 is a schematic structural diagram of an alternative embodiment of a lower casing of a heat pump water heater according to an exemplary embodiment
  • FIG. 4 is a schematic structural diagram of an alternative embodiment of a front side shell of a heat pump water heater according to an exemplary embodiment
  • Fig. 5 is a schematic structural diagram of an alternative embodiment of a rear side shell of a heat pump water heater according to an exemplary embodiment
  • Fig. 6 is a schematic structural diagram of an alternative embodiment of an upper housing of a heat pump water heater according to an exemplary embodiment
  • FIG. 7 is a schematic structural diagram of an alternative embodiment of a water tank of a heat pump water heater according to an exemplary embodiment
  • FIG. 8 is a schematic structural diagram of an alternative embodiment of a heat pump of a heat pump water heater according to an exemplary embodiment
  • FIG. 9 is a schematic structural diagram of an alternative embodiment of a support mechanism according to an exemplary embodiment.
  • Fig. 10 is a top view of a base of a supporting mechanism according to an exemplary embodiment
  • Fig. 11 is a top view of a lower load-bearing partition of a support mechanism according to an exemplary embodiment
  • Fig. 12 is a bottom view of a lower load-bearing partition of a supporting mechanism according to an exemplary embodiment
  • Fig. 13 is a bottom view of an upper load-bearing partition of a supporting mechanism according to an exemplary embodiment
  • FIG. 14 is a schematic structural view of an alternative embodiment of a load-bearing rod of a support mechanism according to an exemplary embodiment
  • Fig. 15 is a schematic structural diagram of an alternative embodiment of a lower support rod of a support mechanism according to an exemplary embodiment.
  • Fig. 16 is a schematic structural diagram of an alternative embodiment of an upper support rod of a support mechanism according to an exemplary embodiment
  • Fig. 17 is a schematic structural diagram of an alternative embodiment of an air duct structure according to an exemplary embodiment
  • Fig. 18 is a plan view of an air duct structure according to an exemplary embodiment
  • Fig. 19 is a plan view of another direction of the air duct structure according to an exemplary embodiment.
  • 20 is a schematic structural diagram of an alternative embodiment of a first volute of an air duct structure according to an exemplary embodiment
  • 21 is a schematic structural diagram of an alternative embodiment of a second volute of an air duct structure according to an exemplary embodiment
  • Fig. 22 is a schematic structural diagram of an alternative embodiment of an air guide shell of an air duct structure according to an exemplary embodiment
  • FIG. 23 is a schematic structural diagram of an alternative embodiment showing the connection relationship between the air guide shell and the exhaust ring of the air duct structure according to an exemplary embodiment
  • Fig. 24 is a horizontal plan view of an air guide shell of an air duct structure according to an exemplary embodiment
  • Fig. 25 is a schematic structural diagram of an alternative embodiment of an evaporator according to an exemplary embodiment
  • Fig. 26 is a schematic structural diagram of an alternative embodiment of an arrangement manner of heat exchange tubes of an evaporator according to an exemplary embodiment
  • Fig. 27 is a side view of a heat exchange tube of an evaporator according to an exemplary embodiment
  • Fig. 28 is a schematic structural diagram of an alternative embodiment of a U-shaped tube of an evaporator according to an exemplary embodiment
  • Fig. 29 is a schematic structural diagram of an alternative embodiment of a heat exchange tube positioning sheet of an evaporator according to an exemplary embodiment
  • Fig. 30 is a schematic structural diagram of an alternative embodiment of a sealing baffle of an evaporator according to an exemplary embodiment.
  • Fig. 31 is a schematic structural diagram of an alternative embodiment of a centrifugal fan according to an exemplary embodiment
  • 32, 33, 34 and 35 are schematic structural views of an alternative embodiment of a centrifugal fan blade of a centrifugal fan according to an exemplary embodiment
  • Fig. 36 is a schematic structural diagram of an alternative embodiment of a fan motor of a centrifugal fan according to an exemplary embodiment.
  • connection should be understood in a broad sense, for example, it may be a mechanical connection or an electrical connection, or it may be the communication between two elements, It may be directly connected or indirectly connected through an intermediary.
  • connection should be understood in a broad sense, for example, it may be a mechanical connection or an electrical connection, or it may be the communication between two elements, It may be directly connected or indirectly connected through an intermediary.
  • connection should be understood in a broad sense, for example, it may be a mechanical connection or an electrical connection, or it may be the communication between two elements, It may be directly connected or indirectly connected through an intermediary.
  • FIGS 1 and 2 show an alternative embodiment of the heat pump water heater.
  • a heat pump water heater includes an upper casing 100 installed with a water tank 101 and a lower casing 200 installed with a heat pump 201.
  • the upper casing 100 is provided on the upper side of the lower casing 200, and the lower casing 200
  • a support mechanism 300 is also installed inside, and the water tank 101 in the upper casing 100 is fixed to the top end of the support mechanism 300.
  • the water tank 101 is placed on the upper side, and the heat pump 201 that generates vibration during operation is placed on the lower side, and the weight of the water tank 101 is used to compress the lower housing 200 where the heat pump 201 is installed to suppress vibration.
  • the amplitude can achieve the purpose of reducing noise, and the support mechanism 300 can ensure the stability of the water tank 101 and prevent the heat pump water heater from being easily tipped over.
  • an exhaust ring 630 is also included, and the exhaust ring 630 is disposed between the upper case 100 and the lower case 200.
  • the annular exhaust ring 630 is disposed in the middle of the upper casing 100 and the lower casing 200, and plays a role of separating the upper casing 100 and the lower casing 200, which is beautiful and elegant.
  • the upper case 100 and the water tank 101 are filled with foam material.
  • the filling of the foam material allows the water tank 101 to be better kept fixed, preventing the water tank 101 from shaking, and at the same time the filled foam material can play a good thermal insulation role and prevent the heat in the water tank 101 from being lost .
  • the support mechanism 300 is closely attached to the inside of the lower housing 200, and sufficient support space is provided inside the support mechanism 300. With this optional embodiment, it is possible to ensure the compactness of the overall structure and increase space utilization.
  • FIGS 3, 4, 5 and 6 show an alternative embodiment of the upper and lower housings of the heat pump water heater.
  • the lower housing 200 has a round-table structure.
  • a structure with a round table-shaped structure with a large area on the lower side and a small area on the upper side improves stability and effectively prevents roll.
  • the lower case 200 includes a front case 202 and a rear case 203.
  • the front case 202 and the rear case 203 are fixedly connected by screws, and screw holes 204 for installing screws are located on the rear case 203.
  • the front shell 202 is provided with an air inlet 205.
  • the lower housing 200 is divided into two parts, and installation by docking is more convenient for installation, and disassembly for later maintenance and repair is also more convenient.
  • the upper housing 100 includes a cylindrical housing 102 and a top cover 103.
  • the cylindrical housing 102 is sleeved on the outside of the water tank 101, and an elastic protrusion 104 is provided on one side of the top cover 103, and the elastic protrusion 104 is inserted into the cylinder
  • the upper end of the housing 102 can fix the top cover 103 on the cylindrical housing 102, and the inner side of the elastic protrusion 104 is an arc-shaped surface 105.
  • the upper housing 100 is divided into two parts for easier installation, and at the same time, the curved surface 105 of the inner side of the elastic protrusion 104 on the lower side of the top cover 103 is used to better fix the upper end of the water tank 101, Prevent the water tank 101 from shaking and tilting.
  • the elastic protrusion 104 is an annular protrusion with a diameter smaller than the inner diameter of the cylindrical housing 102, and is made of some elastic material such as rubber material.
  • the elastic protrusions 104 are composed of multi-lobed protrusions, and the multi-lobed protrusions form an annular structure with a predetermined gap between each lobe.
  • the elasticity of the elastic protrusion 104 can be increased.
  • FIG. 7 shows an alternative implementation structure of the water tank of the heat pump water heater.
  • the water tank 101 is a structure with spherical surfaces at both ends of the cylinder, and the lower spherical surface of the water tank 101 is fixed to the top of the support mechanism 300 through a fixed connection plate 106.
  • the volume of the cylindrical water tank 101 can be ensured, while the space occupation is reduced, the pressure that the water tank 101 can withstand is increased, and the water tank 101 is connected to the support mechanism 300 by using a fixed connection plate, and the water tank 101 and the support mechanism 300 The connection becomes a whole, and the stability of the water tank 101 is ensured by the stability of the support mechanism 300.
  • a heating tube 105 is provided on the cylindrical side of the water tank 101.
  • the fixed connection plate 106 is a disc-shaped structure, and one side is connected to the water tank 101 by screws or welding or snapping, and the other side is connected to the support mechanism 300 by screws or welding or snapping Etc. fixed connection.
  • the water tank 101 can be firmly fixed on the support mechanism 300 to keep the water tank 101 stable.
  • FIG. 8 shows an alternative implementation structure of the heat pump of the heat pump water heater.
  • the heat pump 201 includes a compressor 400, a condenser 500, an air duct structure 600, and an evaporator 700.
  • the air duct structure 600 divides the internal space of the lower housing 200 into two parts, and the air intake of the air duct structure 600 The end is located in the space on one side, the air intake end of the air duct structure 600 faces the air inlet 205 on the front side shell 202, and the evaporator 700 is disposed between the air intake end of the air duct structure 600 and the air inlet 205,
  • the compressor 400 and the condenser 500 are provided in the space on the other side of the air duct structure 600.
  • the space in the lower housing 200 is divided into two parts to ensure that the air can enter from the air inlet 205 when entering the air, enter the air duct structure 600 after passing through the evaporator 700, and the air duct
  • the structure 600 is directly discharged, and all the generated airflow passes through the evaporator 700, avoiding useless work, increasing the efficiency of heat exchange of the evaporator 700, reducing energy consumption, and making the work more stable, and after the efficiency is increased, the centrifugal fan in the air duct structure 600 can be reduced Speed, which reduces noise.
  • a support mechanism 300 includes a base 310 and a load-bearing bar 320, and also includes an upper load-bearing bulkhead 330, a lower load-bearing bulkhead 340, a lower support bar 350, and an upper support bar 360, through which the load-bearing bar 320 passes.
  • the lower load-bearing partition 340 is connected to the base 310 and the upper load-bearing partition 330 at both ends.
  • a lower support bar 350 is provided between the base 310 and the lower load-bearing partition 340.
  • the lower load-bearing partition 340 and the upper load-bearing partition 330 are There is an upper support bar 360.
  • the lower load-bearing bulkhead 340 and the upper load-bearing bulkhead 330 are supported by the load-bearing rod 320 so that the lower load-bearing bulkhead 340 and the upper load-bearing bulkhead 330 have the load-bearing capacity, and at the same time, the base 310 and the lower load-bearing bulkhead
  • a lower support bar 350 is provided between the brackets of the plate 340 to ensure the stability of the lower load-bearing partition 340
  • an upper support bar 360 is provided between the lower load-bearing partition 340 and the upper load-bearing partition 330 to support the lower load-bearing partition 340
  • a space is provided between the lower load-bearing bulkhead 340 and the upper load-bearing bulkhead 330 to provide sufficient installation space for the exhaust ring 630, and overall a reasonable installation space is reserved
  • the load-bearing bar 320 is a solid cylindrical structure, and the lower end of the load-bearing bar 320 is provided with a fixing piece 321, and the support bar 320 is provided with a supporting protrusion 322 under the portion of the lower load-bearing partition 340 to support the lower In the load-bearing partition 340, the diameter of the load-bearing rod 320 is proportional to the weight to be carried.
  • a solid cylindrical structure is used to provide sufficient load-bearing capacity
  • a fixing piece 321 at the lower end of the load-bearing bar 320 is used to fix the load-bearing bar 320 on the base 310 to prevent the rotation of the load-bearing bar 320 and increase the stability of the structure
  • the support protrusions 322 on the load-bearing rod 320 can support the lower load-bearing bulkhead 340, so that the lower load-bearing bulkhead 340 has sufficient load-bearing capacity, and the diameter of the load-bearing rod 320 is proportional to the required weight range.
  • the diameter of the load-bearing rod 320 is 50 mm, and when the required weight has not increased or decreased by a factor of 1, the diameter of the load-bearing rod 320 is correspondingly increased or decreased by a factor of 0.5.
  • the load-bearing rod 320, the fixing piece 321 and the support protrusion 322 are integrally molded, or the fixing piece 321 and the support protrusion 322 are separately manufactured, and then welded on the load-bearing lever 320.
  • the base 310 is provided with a groove 311, and the groove 311 is provided with a lower support rod fixing groove 312 and two load-bearing rod lower fixing grooves 313, and the center of the two load-bearing rod lower fixing grooves 313 is relative to the base 310
  • the center of the circle is symmetrical.
  • the lower end of the load-bearing bar 320 is fixed by the lower fixing bar 313 of the load-bearing bar on the base 310, and two load-bearing bars 320 can be installed to provide sufficient load-bearing capacity in a limited space, and the two The installation positions of the root load-bearing rods 320 are strictly symmetrical to prevent uneven load bearing.
  • the groove 311 is a groove provided on the side of the base 310 and recessed downward.
  • the upper side surface of the upper load-bearing partition 330 is provided with a concave spherical structure, and the center position of the concave spherical structure is provided with a mounting groove 333 for mounting the fixed connection plate 106, and the lower side of the upper load-bearing partition 330
  • An upper support rod fixing groove 331 and two load-bearing rod upper fixing grooves 332 are provided.
  • the concave spherical structure is used, in conjunction with the spherical structure at the lower end of the water tank 101 to be installed during use, the water tank 101 is better fixed, and on the other hand, the load-bearing underside of the upper load-bearing bulkhead 330
  • the upper fixing groove 332 of the rod can well fix the upper end of the load-bearing rod 320, and the position of the fixing groove 332 on the two load-bearing rods corresponds to the position of the lower fixing groove 313 of the two load-bearing rods on the base 310, maintaining two load-bearing rods
  • the upper support bar fixing groove 331 on the lower side of the upper load-bearing partition 330 is used to fix and connect the upper end of the upper support bar 360.
  • a fixed connection method such as screws, welding, or snapping may be used between the mounting groove 333 and the fixed connection plate 106.
  • the lower load-bearing partition 340 is provided with a support rod connecting groove 341, an air channel structure through groove 342, and a load-bearing rod through hole 343, and the lower side of the lower load-bearing partition 340 is provided with an evaporator fixing card 344.
  • the load-bearing rod through hole 343 can allow the load-bearing rod 320 to pass through while supporting the lower load-bearing bulkhead 340 and the upper load-bearing bulkhead 330, and the air channel structure through slot 342 is used to Let the duct structure pass through the middle.
  • the upper side of the support bar connecting groove 341 is a bar-shaped groove for fixing the upper support bar 360
  • the lower side is a square groove for fixing the lower support bar 350.
  • the support bar connection groove 341 is a collective name of two grooves provided on the lower load-bearing partition 340, the two grooves are respectively a strip groove on the upper side and a square groove on the lower side, and the positions of the two correspond, and the two None of the slots penetrates the lower load-bearing partition 340.
  • one or more lower support bars 350 are provided, and are evenly arranged on the circumference between the base 310 and the lower load-bearing bulkhead 340, and one or more upper support bars 360 are provided, and are evenly arranged below The circumference between the load bearing partition 340 and the upper load bearing partition 330.
  • the evenly distributed upper support bars 360 support the base 310 and the lower load-bearing bulkhead 340 to improve the stability of the support
  • the evenly distributed lower support bars 350 support the lower load-bearing bulkhead 340 and the upper
  • the support between the load-bearing partitions 330 improves the stability of the support.
  • the lower support rod 350 has a preset tilt angle, and the preset tilt angle of the lower support rod 350 is inversely proportional to the weight to be carried, and the lower support rod 350 is a channel-shaped steel structure, and the lower end of the lower support rod 350 A first fixing piece 351 protruding in the direction of the notch is provided, a first fixing card 352 bent downward is provided on both sides of the first fixing piece 351, and a second protruding in the direction of the notch is provided on the upper end of the lower support bar 350 ⁇ 353.
  • the tilt angle of the lower support bar 350 is used to resist the lateral force, improve the stability of the support mechanism 300, and prevent the support mechanism 300 from tilting, and the greater the weight required to support, the lower support bar 350
  • the lower support rod 350 is perfectly fixed between the base 310 and the lower load-bearing partition 340 through the first fixing piece 351 and the second fixing piece 353 at the upper and lower ends of the lower support rod 350.
  • the channel-shaped steel structure increases the strength of the lower support rod 350 itself, and reduces the weight of the lower support rod 350 itself.
  • the preset tilt angle of the lower support bar 350 is: when the required load weight is 250 kg, the preset tilt angle is 89.1 degrees; each time the required load weight is doubled, the preset tilt angle Is reduced by 0.01 times.
  • the preset tilt angle of the lower support bar 350 is greater than 60 degrees and less than or equal to 90 degrees.
  • the upper support rod 360 is a slot-shaped steel structure, and the lower end of the upper support rod 360 is provided with a third fixing piece 361 protruding in the direction of the reverse slot, and a second fixing bent downward on both sides of the third fixing piece 361 is provided
  • the projecting end of the third fixing piece 361 is provided with a blocking piece 363 bent vertically downwards, and the upper end of the upper support rod 360 is provided with a fourth fixing piece 364 that projects in the direction of the notch.
  • the third fixing piece 361 snaps into the support rod connection groove 341 on the lower load-bearing bulkhead 340
  • the fourth fixing piece 364 snaps into the upper support rod fixing groove 331 on the upper load-bearing bulkhead 330
  • the third fixing piece 361 and the fourth fixing piece 364 are used to stably fix the upper support rod 360 to the lower load-bearing bulkhead 340 and the upper load-bearing bulkhead 330 bracket.
  • 17 to 24 show an alternative implementation structure of the air duct structure.
  • an air duct structure 600 includes a volute 610, an air guide shell 620, and an exhaust ring 630.
  • the outlet end of the volute shell 610 communicates with the air intake end of the air guide shell 620.
  • the edge of the ring is provided with a wind shield 611; the outlet end of the wind guide shell 620 communicates with the inner arc surface of the exhaust ring 630; the circumference of the exhaust ring 630 is provided with a wind guide 631, which is an arc-shaped structure
  • the wind piece 631 is uniformly bent toward the same side.
  • the windshield 611 is used to divide its installation space into two parts, so that the intake air of the air duct structure 600 comes entirely from the same side, that is, the side where the evaporator is installed, so that the airflow is concentrated
  • the evaporator makes the air flow in the air duct structure 600 exchange as much energy as possible with the evaporator, effectively improving the air guide efficiency of the air duct structure 600, and after the air guide efficiency is improved, the centrifugal fan in the air duct structure 600 can be appropriately reduced
  • the running speed achieves the purpose of reducing noise.
  • the volute 610 includes a first volute 612 and a second volute 613, a first volute 614 is provided on the first volute 612, a centrifugal fan 800 is embedded in the first volute 614, and a second volute 613 A second volute 615 is provided on the top, and an air inlet 616 is provided in the second volute 615, and the suction end of the centrifugal fan 800 is adjacent to the air inlet 616.
  • the volute 610 is divided into two parts to facilitate later maintenance of the interior of the volute 610, and the centrifugal fan 800 corresponds to the suction end to ensure that the airflow can enter the volute 610 more smoothly.
  • connection part between the exhaust ring 630 and the air outlet of the air guide shell 620 is provided with an air outlet 632, the air guide 631 in the air outlet 632 penetrates the air outlet 632, and the exhaust ring 630 other than the air outlet 632 All of them are closed structures, and the air guide 631 is embedded in the closed structure.
  • this optional embodiment it is possible to ensure that half of the wind exits, and the decorative wind guide piece 631 is directly inlaid for the half of the wind that does not exit, which can reduce costs.
  • one end of the centrifugal fan 800 is embedded in the first volute 614, the embedded depth is the depth of the first volute 614 plus the depth of the second volute 615 from one-half to three-quarters, and the first The volutes 614 are hermetically connected to each other, and the other end of the centrifugal fan 800 is provided with a bare leak outside the first volute 612.
  • a part of the centrifugal fan 800 is embedded inside the volute 610, and the volute 610 is used to partially isolate the noise generated by the centrifugal fan 800 to reduce the noise, and the embedded installation method is adopted to make the structure more compact To reduce space occupancy.
  • the shapes of the first volute 614 and the second volute 615 are exactly the same, and the edges of the first volute 614 and the second volute 615 are provided with sealing grooves, or the edges of the first volute 614 Or a sealing groove is provided on the edge of the second volute 615, a sealing strip is provided in the sealing groove, and the first volute 612 and the second volute 613 are fixed by screws.
  • the first volute 614 and the second volute 615 with the same structure are snapped together to form an integral volute, and the sealing groove and the sealing strip in the middle of the two parts can ensure the first volute The tightness between the groove 614 and the second volute 615 prevents air leakage.
  • the air guide shell 620 has a semicircular structure, the arc surface of the air guide shell 620 is the air outlet end, the lower side of the air guide shell 620 is the air inlet end, and the air outlet end of the air guide shell 620 is opposite to the direction of the air inlet 616.
  • a semi-circular structure is used to ensure that the airflow is discharged from the half side, and the outlet end of the air guide shell 620 is opposite to the air inlet 616, which can ensure that the discharged cooled air will not immediately exit the air inlet 616 It is sucked in again, so as to ensure that the temperature of the air sucked into the air inlet 616 is relatively higher, and the utilization rate of the air temperature energy is improved.
  • a guide groove 621 is provided on the curved edge of the air guide shell 620, and a through hole 622 is provided in the middle of the upper side of the air guide shell 620.
  • the reserved guide groove 621 and the through hole 622 are used to increase the installation space for the support mechanism 300 in the heat pump water heater, which facilitates the combination between the whole.
  • the inner side of the lower side of the air guide shell 620 opposite to the air outlet end of the volute shell 610 is provided with an arc-shaped air guide surface.
  • the airflow is diverted, thereby reducing wind resistance and ensuring smoother airflow.
  • one or more pipeline grooves 617 are provided on one side of the windshield 611, and windshield sheet installation fixing sheets 618 are provided at both ends of the lower side of the windshield sheet 611.
  • the installation of the fixing plate 618 by the windshield plate can stably fix the entire air duct structure 600 inside the heat pump water heater, and the pipeline groove 617 reserves the arrangement position for the pipeline inside the heat pump water heater.
  • 25 to 30 show an alternative implementation structure of the evaporator.
  • an evaporator 700 includes a heat exchange tube 701 connected in series by a U-shaped tube 702, and the heat exchange tubes 701 are arranged in two parallel surfaces.
  • 701 is a curved structure, and both ends of the heat exchange tube 701 are stuck on the heat exchange tube positioning piece 703, and a sealing baffle 704 is provided on one side of the heat exchange tube positioning piece 703.
  • the heat exchange tube 701 of the curved structure is used to increase the contact area with the air, thereby increasing the heat exchange efficiency of the evaporator 700, and the sealing baffle 704 serves to converge the airflow, allowing the airflow to converge to the heat exchange At the tube 701, the heat exchange efficiency of the evaporator 700 is improved, and the design in which the heat exchange tubes 701 are arranged on both surfaces is beneficial to reduce the wind resistance while ensuring the heat exchange efficiency.
  • the heat exchange tubes 701 are arranged on two sides, and the gap between the heat exchange tubes 701 on one side and the two heat exchange tubes 701 on the other side corresponds.
  • the airflow passing through the two heat exchange tubes 701 is directly in contact with the heat exchange tubes 701 on the other surface to increase the heat exchange efficiency.
  • a first preset distance is provided between the two heat exchange tubes 701 arranged on one surface.
  • the distance between the heat exchange tubes 701 on the same surface is controlled by the first preset distance, and then the size of the wind resistance is controlled by the distance.
  • a second preset distance is provided between the two surfaces of the heat exchange tube 701.
  • the distance between the two surfaces arranged by the heat exchange tubes 701 is reasonably controlled by the second preset distance, and the size of the wind resistance can also be controlled.
  • the optional first preset distance and second preset distance can be set according to the actual situation, the two determine the size of the wind resistance, the best width of the first preset distance and the second preset distance are heat exchange The diameter of the tube 701.
  • the heat exchange tube 701 has a V-shaped structure, and the bending point of the V-shaped structure is an arc.
  • the opening of the V-shaped structure faces the inside of the heat pump water heater, and the two sides of the V-shaped structure are close to the edge of the inner wall of the heat pump water heater to reduce the space occupation .
  • the heat exchanger 701 has a circular arc structure.
  • the inner arc of the circular arc structure faces the inner side of the heat pump water heater, and the outer arc surface of the circular arc structure closely adheres to the inner wall edge of the heat pump water heater To reduce space usage.
  • the heat exchange tube positioning piece 703 has a groove structure, and the heat exchange tube positioning piece 703 is provided with a positioning hole 705 for fixing the heat exchange tube 701.
  • the heat exchange tubes 701 are fixed by using the positioning holes 705, and the heat exchange tubes 701 are regularly arranged according to a fixed shape to play a role in shaping and strengthening the heat exchange tubes 701.
  • one end of the heat exchange tube positioning piece 703 is provided with a fixing card 706 with a reverse slot.
  • the heat exchange tube positioning piece 703 is fixed by the fixing card 706, so as to fix the entire evaporator 700.
  • the sealing baffle 704 has a triangular structure, one side of which is fixedly connected to one side of the heat exchange tube positioning plate 703 by screws.
  • the sealing baffle 704 of the triangular structure coincides with the inner wall of the heat pump water heater at the installation position, sealing the spaces on both sides of the heat exchange tube, so that the airflow can completely pass the heat exchange tube 701 for heat exchange.
  • one or more heat exchangers 700 may be used simultaneously, and one or more heat exchangers 700 may be connected in parallel.
  • 31 to 36 show an alternative implementation structure of the centrifugal fan.
  • a centrifugal fan 800 includes a fan motor 801 and a centrifugal fan blade 802.
  • a centrifugal fan blade 802 is installed at an output end of the fan motor 801.
  • the centrifugal fan blade 802 includes a blade 803 and an impeller 804.
  • the end of the motor 801 installed with the centrifugal fan blade 802 is provided with a heat dissipation hole 805;
  • the side of the centrifugal fan blade 802 connected to the fan motor 801 is provided with a wind tunnel 806, and the side is recessed into the centrifugal fan blade 802;
  • the blade 803 is connected to the impeller 804 has a notch 807 at one end.
  • the blade 803 can be avoided by using the notch 807 provided at the end where the blade 803 is connected to the impeller 804
  • Useless work and can reduce the resistance of the blade 803, improve the efficiency of the blade 803 to absorb the airflow
  • the fan motor 801 is provided with a heat dissipation hole 805 on the side close to the centrifugal fan blade 802, and the airflow generated by the rotation of the impeller 804 dissipates the fan motor 801 , Increase the stability of the fan motor 801 work, generally improve the efficiency of the centrifugal fan 800.
  • centrifugal fan blade 802 is directly fixedly connected to the rotating shaft of the fan motor 801 by screws.
  • the other end opposite to the output end of the fan motor 801 is provided with an auxiliary heat dissipation port 808.
  • both ends of the fan motor 801 are radiated at the same time, which further increases the heat dissipation efficiency of the fan motor 801 and improves the working stability of the fan motor 801.
  • the heat dissipation hole 805 and the auxiliary heat dissipation port 808 penetrate inside the fan motor 801 to form a heat dissipation air duct structure.
  • the airflow generated by the rotation of the blades 803 draws part of the airflow from one end of the fan motor 801 and discharges it from the other end, allowing the airflow to penetrate through the inside of the fan motor 801, increasing the heat dissipation efficiency of the fan motor 801.
  • a sealing mounting piece 809 is provided on the side of the fan motor 801.
  • annular surface 810 is provided on the side circumference of the centrifugal fan blade 802 connected to the fan motor 801. With this alternative embodiment, the annular surface 810 is used to keep the blade 803 fixed.
  • one end of the blade 803 is fixedly connected to the annular surface 810.
  • one end of the entire blade 803 is fixed to the annular surface 810 to maintain the overall resistance of the blade 803 to wind resistance, and to improve the robustness of the blade 803.
  • the blade 803 is directly fixed in the annular shape by injection molding during production Just face 810.
  • the portion of the centrifugal blade 802 recessed inward is smaller than the thickness of the centrifugal blade 802. With this optional embodiment, it is ensured that the part of the centrifugal fan blade 802 that is recessed inward does not protrude to the other side of the centrifugal fan blade 802, reducing the occupation of space and making the installation structure more compact.
  • the portion of the centrifugal fan blade 802 that is recessed toward the inside gradually decreases in diameter.
  • the diameter of the recessed portion is gradually reduced, so that the recessed portion has inclined sides, and the inner diameter is gradually reduced to form a bowl shape, improving the stability of the structure, so that the side of the centrifugal fan blade 802 connected to the fan motor 801 Stronger.
  • the wind tunnel 806 is evenly arranged on the side circumference of the portion of the centrifugal blade 802 that is recessed inward. With this alternative embodiment, the wind tunnel 806 is evenly distributed, so that the air flow is stable when the centrifugal fan blade 802 is rotating.
  • the wind tunnel 806 is an oval or circular hole that penetrates the side of the centrifugal fan blade 802 that is recessed toward the inside.
  • the impeller 804 is connected to the outer end of the blade 803, and the width of the notch 807 is the same as the width of the impeller 804.
  • the wind resistance when the blade 803 rotates can be reduced, and the wind guide amount of the blade 803 is not affected.
  • the centrifugal fan blade 802 is integrally injection molded. With this optional embodiment, the stability of the structure of the centrifugal fan blade 802 can be effectively increased, and it is more convenient for manufacturing.
  • the working principle of the heat pump water heater the compressor 400 and the condenser 500 are a whole.
  • the compressor 400 can compress the refrigerant in the condenser 500 to release heat.
  • the inlet end of the evaporator 700 passes through the refrigerant pipe and the outlet end of the condenser 500 Connected, the outlet end of the evaporator 700 is connected to the inlet end of the condenser 500 through a refrigerant tube, the outer side of the condenser 500 is coiled with a heat exchanger, the inlet end of the heat exchanger communicates with the outlet end of the heating tube 105, and the outlet end of the heat exchanger It is connected to the inlet end of the heating tube 105, and the outlet end of the heat exchanger and the inlet end of the heating tube 105 are provided with a water pump, which drives the medium in the heat exchanger and the heating tube 105 to circulate; when the air passes through the evaporator 700, it evaporates The refrigerant in the heater 700
  • the water pump conveys the heated medium into the heating tube 105, which is coiled outside the water tank 101, heats the water in the water tank 101, and absorbs the low-temperature heat in the air under the constant circulation of the refrigerant and the medium.
  • the water in the water tank is heated, and the overall energy consumption is small.

Abstract

一种风道结构（600），包括蜗壳（610）、导风壳（620）和排气圈（630），蜗壳（610）的出气端与导风壳（620）的进气端连通，蜗壳（610）周圈边缘设有挡风片（611）；导风壳（620）的出气端与排气圈（630）内侧弧面连通；排气圈（630）的周圈设有导风片（631），导风片（631）为弧形结构，统一向同一侧弯折。

Description

风道结构
本申请基于申请号为201811608629.9、申请日为2018年12月27日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本发明涉及热水器技术领域，特别涉及一种风道结构。
背景技术
热泵热水器能把空气中的低温热量吸收进来，经过氟介质气化，然后通过压缩机压缩后增压升温，再通过换热器转化给水加热，压缩后的高温热能以此来加热水温，具有高效节能的特点，制造相同的热水量，是一般电热水器的4-6倍，其年平均热效比是电加热的4倍，利用能效高。
由于热泵热水器的主要能源来自于空气中的低温热量，获取空气中的热量，首先需要利用风道将空气导入，现有技术存在多种进风的风道结构，虽然能利用到热泵热水器上，但是导风的效率都比较低。
发明内容
本发明实施例提供了一种风道结构。为了对披露的实施例的一些方面有一个基本的理解，下面给出了简单的概括。该概括部分不是泛泛评述，也不是要确定关键/重要组成元素或描绘这些实施例的保护范围。其唯一目的是用简单的形式呈现一些概念，以此作为后面的详细说明的序言。
根据本发明实施例的第一方面，提供了一种风道结构。
在一些可选实施例中，一种风道结构，包括蜗壳、导风壳和排气圈，蜗壳的出气端与导风壳的进气端连通，蜗壳周圈边缘设有挡风片；导风壳的出气端与排气圈内侧弧面连通；排气圈的周圈设有导风片，导风片为弧形结构，导风片统一向同一侧弯折。
采用该可选的实施例，利用挡风片将其安装空间分隔为两部分，从而使风道的进气完全来自同一侧，即安装有蒸发器的一侧，从而让气流集中经过蒸发器，使风道内流通的气流尽可能多的和蒸发器交换能量，有效提高风道的导风效率，并且导风效率提高之后可以适当降低风道内风机的运行速度，达到降低噪音的目的。
可选地，蜗壳包括第一蜗壳和第二蜗壳，第一蜗壳上设有第一蜗槽，第一蜗槽内嵌入离心风机，第二蜗壳上设有第二蜗槽，第二蜗槽内设有进风口，离心扇叶的吸气端紧邻进风口。采用该可选实施例，将蜗壳分为两部分，便于后期对蜗壳内部进行维修，且离心扇叶与进风口对应，保证气流能够更加顺畅的进入到蜗壳内。
可选地，排气圈与导风壳出气端连接部分设有出气口，出气口内的导风片贯通出气口，排气圈上除出气口外的其他部位均为封闭结构，导风片镶嵌在封闭结构上。采用该可选实施例，可保证半边出风，对于不出风的半边则直接镶嵌装饰性的导风片，可降低成本。
可选地，离心风机一端嵌入在第一蜗槽内，嵌入的深度为第一蜗槽的深度加第二蜗槽的深度的二分之一到四分之三，并且第一蜗槽之间密封连接，离心风机的另一端设有裸漏在第一蜗壳外侧。采用该可选实施例，将离心风机的部分嵌入到蜗壳内部，利用蜗壳对离心风机产生的噪音进行部分隔绝，减小噪音，同时采用嵌入的安装方式，让结构更加紧凑，减小空间占用率。
可选地，第一蜗槽和第二蜗槽的形状完全相同，第一蜗槽的边缘和第二蜗槽的边缘上设有密封槽，或者，第一蜗槽的边缘或第二蜗槽的边缘上设有密封槽，密封槽内设有密封条，第一蜗壳和第二蜗壳之间通过螺丝固定。采用该可选实施例，将结构完全相同的第一蜗槽和第二蜗槽扣合在一起形成一个整体的蜗槽，并且两部分中间的密封槽和密封条，可保证第一蜗槽和第二蜗槽之间的密封性，防止产生漏气。
可选地，导风壳为半圆结构，导风壳的弧面为出气端，导风壳的下侧面为进气端，导风壳的出气端与进风口方向相反。采用该可选实施例，采用半圆结构，保证将气流从半边排出，利用导风壳的出气端和进风口方向相反，可以保证排出的被降温的空气，不会立即从进风口处再次被吸入，从而保证进风口吸入的空气温度相对高一些，提高对空气温度能量的利用率。
可选地，导风壳的弧面边缘设有导槽，导风壳的上侧面中间设有通孔。采用该可选实施例，利用预留的导槽和通孔，给热泵热水器中的支撑机构提供安装空间，便于整体之间的组合。
可选地，导风壳下侧内部与蜗壳出风端相对的一侧设有弧形导风面。采用该可选实施例，对气流形成疏导，从而降低风阻，保证气流更加顺畅。
可选地，挡风片一侧设有一个或多个管路槽，挡风片下侧两端设有挡风片安装固定片。采用该可选实施例，利用挡风片安装固定片可将整个风道结构稳定的固定在热泵热水器内部，管路槽则给热泵热水器内部的管路预留排布位置。
根据本发明实施例的第二方面，提供了一种热泵热水器。
在一些可选实施例中，一种热泵热水器，包括上述任一项的风道结构。
采用该可选的实施例，利用上述风道结构可以有效的提高热泵热水器的导风效率。
采用该可选的实施例，利用风道上设有的挡风片，将其安装空间分开，从而使风道的进气完全来自同一侧，即安装有蒸发器的一侧，从而让气流集中经过蒸发器，使风道内流通的气流尽可能多的和蒸发器交换能量，有效提高风道的导风效率，并且导风效率提高之后可以适当降低风道内风机的运行速度，达到降低噪音的目的。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本发明。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本发明的实施例，并与说明书一起用于解释本发明的原理。
图1是根据一示例性实施例示出的热泵热水器的一个可选实施例结构示意图；
图2是根据一示例性实施例示出的热泵热水器的内部的一个可选实施例结构示意图；
图3是根据一示例性实施例示出的热泵热水器的下壳体的一个可选实施例结构示意图；
图4是根据一示例性实施例示出的热泵热水器的前侧壳的一个可选实施例结构示意图；
图5是根据一示例性实施例示出的热泵热水器的后侧壳的一个可选实施例结构示意图；
图6是根据一示例性实施例示出的热泵热水器的上壳体的一个可选实施例结构示意图；
图7是根据一示例性实施例示出的热泵热水器的水箱的一个可选实施例结构示意图；
图8是根据一示例性实施例示出的热泵热水器的热泵的一个可选实施例结构示意图；
图9是根据一示例性实施例示出的支撑机构的一个可选实施例结构示意图；
图10是根据一示例性实施例示出的支撑机构的底座的俯视图；
图11是根据一示例性实施例示出的支撑机构的下承重隔板的俯视图；
图12是根据一示例性实施例示出的支撑机构的下承重隔板的仰视图；
图13是根据一示例性实施例示出的支撑机构的上承重隔板的仰视图；
图14是根据一示例性实施例示出的支撑机构的承重杆的一个可选实施例结构示意图；
图15是根据一示例性实施例示出的支撑机构的下支撑杆的一个可选实施例结构示意图。
图16是根据一示例性实施例示出的支撑机构的上支撑杆的一个可选实施例结构示意图；
图17是根据一示例性实施例示出的风道结构的一个可选实施例结构示意图；
图18是根据一示例性实施例示出的风道结构的刨面图；
图19是根据一示例性实施例示出的风道结构的另一个方向的刨面图；
图20是根据一示例性实施例示出的风道结构的第一蜗壳的一个可选实施例结构示意图；
图21是根据一示例性实施例示出的风道结构的第二蜗壳的一个可选实施例结构示意图；
图22是根据一示例性实施例示出的风道结构的导风壳的一个可选实施例结构示意 图；
图23是根据一示例性实施例示出的风道结构的导风壳和排气圈连接关系的一个可选实施例结构示意图；
图24是根据一示例性实施例示出的风道结构的导风壳的水平刨面图；
图25是根据一示例性实施例示出的蒸发器的一个可选实施例结构示意图；
图26是根据一示例性实施例示出的蒸发器的换热管的排布方式的一个可选实施例结构示意图；
图27是根据一示例性实施例示出的蒸发器的换热管的侧视图；
图28是根据一示例性实施例示出的蒸发器的U形管的一个可选实施例结构示意图；
图29是根据一示例性实施例示出的蒸发器的换热管定位片的一个可选实施例结构示意图；
图30是根据一示例性实施例示出的蒸发器的密封挡片的一个可选实施例结构示意图。
图31是根据一示例性实施例示出的离心风机的一个可选实施例结构示意图；
图32、图33、图34和图35是根据一示例性实施例示出的离心风机的离心扇叶的一个可选实施例结构示意图；
图36是根据一示例性实施例示出的离心风机的风机马达的一个可选实施例结构示意图。
具体实施方式
以下描述和附图充分地示出本发明的具体实施方案，以使本领域的技术人员能够实践它们。其他实施方案可以包括结构的、逻辑的、电气的、过程的以及其他的改变。实施例仅代表可能的变化。除非明确要求，否则单独的部件和功能是可选的，并且操作的顺序可以变化。一些实施方案的部分和特征可以被包括在或替换其他实施方案的部分和特征。本发明的实施方案的范围包括权利要求书的整个范围，以及权利要求书的所有可获得的等同物。在本文中，各实施方案可以被单独地或总地用术语“发明”来表示，这仅仅是为了方便，并且如果事实上公开了超过一个的发明，不是要自动地限制该应用的范围为任何单个发明或发明构思。本文中，诸如第一和第二等之类的关系术语仅仅用于将一个实体或者操作与另一个实体或操作区分开来，而不要求或者暗示这些实体或操作之间存在任何实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括要素的过程、方法或者设备中还存在另外的相同要素。本文中各个实施例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部分互相参见即 可。对于实施例公开的方法、产品等而言，由于其与实施例公开的方法部分相对应，所以描述的比较简单，相关之处参见方法部分说明即可。
本文中的术语“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本文和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。在本文的描述中，除非另有规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是机械连接或电连接，也可以是两个元件内部的连通，可以是直接相连，也可以通过中间媒介间接相连，对于本领域的普通技术人员而言，可以根据具体情况理解上述术语的具体含义。
图1和图2示出了热泵热水器的一个可选实施结构。
该可选实施例中，一种热泵热水器，包括安装有水箱101的上壳体100和安装有热泵201的下壳体200，上壳体100设置在下壳体200的上侧，下壳体200内部还安装有支撑机构300，上壳体100内的水箱101固定在支撑机构300的顶端。
采用该可选的实施例，将水箱101置于上侧，将工作时会产生震动的热泵201置于下侧，利用水箱101的重量压紧安装有热泵201的下壳体200，抑制震动的幅度，从而达到降低噪音的目的，并且利用支撑机构300可以在保证水箱101的稳定，防止热泵热水器整体易于倾倒。
可选地，还包括排气圈630，排气圈630设置在上壳体100和下壳体200中间。采用该可选实施例，环形的排气圈630设置在上壳体100和下壳体200的中间，起到分隔上壳体100和下壳体200的作用，美观大方。
可选地，上壳体100和水箱101中间填充有发泡材料。采用该可选实施例，利用发泡材料的填充让水箱101能够更好的保持固定，防止水箱101晃动，同时填充的发泡材料可以起到很好的保温作用，防止水箱101内的热量散失。
可选地，所述支撑机构300紧贴下壳体200的内部，并且，支撑机构300内侧设有足够的安装空间。采用该可选实施例，能够保证整体结构的紧凑，增加空间利用率。
图3、图4、图5和图6示出了热泵热水器的上壳体和下壳体的一个可选实施结构。
该可选实施例中，下壳体200为圆台型结构。采用该可选实施例，利用圆台型结构下侧面积大上侧面积小的结构，提高稳定性，有效的防止侧倾。
可选地，下壳体200包括前侧壳202和后侧壳203，前侧壳202和后侧壳203之间通过螺丝固定连接，用于安装螺丝的螺丝孔204位于后侧壳203上，前侧壳202上设有进气口205。采用该可选实施例，将下壳体200分为两个部分，通过对接进行安装，安装更加方便，并且后期保养维修时拆卸也更加方便。
可选地，上壳体100包括圆筒壳体102和顶盖103，圆筒壳体102套在水箱101外侧，顶盖103一侧设有弹性凸起104，弹性凸起104插入到圆筒壳体102的上端，可将顶盖103 固定在圆筒壳体102上，弹性凸起104的内侧面为弧形面105。采用该可选实施例，将上壳体100分为两部分，更便于安装，同时，利用顶盖103下侧弹性凸起104内侧面的弧形面105对水箱101的上端更好的固定，防止水箱101晃动、倾斜。
可选地，弹性凸起104为直径小于圆筒壳体102内径的环形凸起，且为橡胶材质等一些具有弹性材质制作。
可选地，弹性凸起104，由多瓣凸起组成，多瓣凸起组成一个环形结构，每瓣之间具有预设的缝隙。采用该可选实施例，可以增加弹性凸起104的弹性。
图7示出了热泵热水器的水箱的一个可选实施结构。
该可选实施例中，水箱101为圆柱体两端呈球面的结构，水箱101的下侧球面通过固定连接盘106固定在支撑机构300的顶端。采用该可选实施例，可保证圆柱体水箱101体积，同时降低空间占用，提高水箱101可承受的压力，并利用固定连接盘将水箱101连接在支撑机构300上，将水箱101与支撑机构300连接成为一个整体，通过支撑机构300的稳定性保证水箱101的稳定性。
可选地，水箱101的圆柱形侧面上设有加热管105。采用该可选实施例，便于通过在圆柱体水箱外侧盘绕加热管105，对水箱101进行加热。
可选地，固定连接盘106为圆盘型结构，一侧与水箱101之间通过螺丝或者焊接或者卡扣等固定连接方式连接，另一侧与支撑机构300之间通过螺丝或者焊接或者卡扣等固定连接。采用该可选实施例，可以牢固的将水箱101固定在支撑机构300上，保持水箱101的稳定。
图8示出了热泵热水器的热泵一个可选实施结构。
该可选实施例中，热泵201包括压缩机400、冷凝器500、风道结构600和蒸发器700，风道结构600将下壳体200内部空间分为两部分，风道结构600的进气端位于其中一侧的空间内，风道结构600的进气端正对前侧壳202上的进气口205，蒸发器700设置在风道结构600的进气端和进气口205的中间，压缩机400和冷凝器500设置在风道结构600另一侧的空间内。采用该可选实施例，将下壳体200内的空间分为两部分，保证进风时能够让风从进气口205进入，经过蒸发器700后进入风道结构600内，并由风道结构600直接排出，产生的气流全部经过蒸发器700，避免做无用功，增加蒸发器700的换热的效率，降低能耗，工作更加稳定，并且效率增加后，可以降低风道结构600内离心风机的转速，从而减小噪音。
图9至图16示出了支撑机构的一个可选实施结构。
该可选实施例中，一种支撑机构300，包括底座310和承重杆320，还包括上承重隔板330、下承重隔板340、下支撑杆350和上支撑杆360，承重杆320穿过下承重隔板340，且两端分别与底座310和上承重隔板330连接，底座310与下承重隔板340之间设有下支撑杆350，下承重隔板340与上承重隔板330之间设有上支撑杆360。
采用该可选的实施例，利用承重杆320支撑住下承重隔板340和上承重隔板330，让 下承重隔板340和上承重隔板330具有承重能力，同时在底座310和下承重隔板340支架之间设有下支撑杆350，可以保证下承重隔板340的稳定，下承重隔板340和上承重隔板330之间设有上支撑杆360进行支撑，将下承重隔板340和上承重隔板330连接成为同一个受力的整体，同时下承重隔板340和上承重隔板330中间空出空间，给排气圈630提供足够的安装空间，总体在保留合理的安装空间的情况下，提高支撑机构300上侧承重时的稳定性。
可选地，承重杆320为实心圆柱形结构，且承重杆320的下端设有固定片321，承重杆320穿过下承重隔板340部分的下侧设有支撑凸起322，用于支撑下承重隔板340，承重杆320的直径与所需承载的重量成正比。采用该可选实施例，利用实心圆柱形的结构提供足够的承重力，并且利用承重杆320下端的固定片321将承重杆320固定在底座310上，防止承重杆320的转动，增加结构的稳定性，承重杆320上的支撑凸起322则可以对下承重隔板340起到支撑作用，让下承重隔板340具有足够的承重能力，承重杆320的直径与所需承载的重量程正比。
可选地，承重杆320所需承载的重量为250kg时，承重杆320的直径为50mm，所需曾在的重量没增加或减少1倍时，承重杆320的直径对应增加或减少0.5倍。
可选地，承重杆320、固定片321和支撑凸起322为整体铸造成型，或者固定片321和支撑凸起322单独制造，然后焊接在承重杆320上。
可选地，底座310上设有凹槽311，凹槽311内设有下支撑杆固定槽312和两个承重杆下固定槽313，两个承重杆下固定槽313中心的位置关于底座310的圆心对称。采用该可选实施例，利用底座310上的承重杆下固定槽313对承重杆320的下端进行固定，且可安装两根承重杆320，在有限的空间内，提供足够的承重能力，并且两根承重杆320的安装位置严格对称，防止造成承重力不均匀的情况。
可选地，凹槽311为设置在底座310上侧面向下凹陷的槽。
可选地，上承重隔板330的上侧面设有内凹的球面结构，内凹的球面结构的圆心位置设有可安装固定连接盘106的安装凹槽333，上承重隔板330的下侧面设有上支撑杆固定槽331和两个承重杆上固定槽332。采用该可选实施例，一方面利用内凹的球面结构，配合使用时需要安装的水箱101下端的球形结构，更好的对水箱101进行固定，另一方面上承重隔板330下侧的承重杆上固定槽332能够很好的对承重杆320的上端进行固定，并且两个承重杆上固定槽332的位置与底座310上两个承重杆下固定槽313的位置对应，保持两根承重杆320与底座310和上承重隔板330之间的垂直关系，上承重隔板330下侧面的上支撑杆固定槽331则用来固定连接上支撑杆360的上端。
可选地，安装凹槽333与固定连接盘106之间可采用螺丝或者焊接或者扣合等固定连接方式。
可选地，下承重隔板340上设有支撑杆连接槽341、风道结构通槽342和承重杆通孔343，下承重隔板340的下侧面设有蒸发器固定卡344。采用该可选实施例，承重杆通孔 343可以让起到支撑作用的承重杆320穿过，同时对下承重隔板340和上承重隔板330进行支撑，风道结构通槽342则用来让风道结构从中间穿过。
可选地，支撑杆连接槽341的上侧面为条形槽，用于固定上支撑杆360，下侧面为方形槽，用于固定下支撑杆350。采用该可选实施例，让上支撑杆360和下支撑杆350的支撑受力连接在一条直线上，保持受力的稳定性。
可选地，支撑杆连接槽341为设置在下承重隔板340上的两个槽的合称，两个槽分别为上侧面的条形槽和下侧面为方形槽，两者位置对应，且两个槽都未贯通下承重隔板340。
可选地，下支撑杆350设有一个或多个，且均匀的设置在底座310和下承重隔板340之间的周圈，上支撑杆360设有一个或多个，且均匀的设置在下承重隔板340和上承重隔板330之间的周圈。采用该可选实施例，通过均匀分布的上支撑杆360对底座310和下承重隔板340之间支撑，提高支撑的稳定性，通过均匀分布的下支撑杆350对下承重隔板340和上承重隔板330之间支撑，提高支撑的稳定性。
可选地，下支撑杆350具有预设的倾斜角度，下支撑杆350预设的倾斜角度与所需承载的重量成反比关系，且下支撑杆350为槽型钢结构，下支撑杆350的下端设有向槽口方向突出的第一固定片351，第一固定片351两侧设有向下弯折的第一固定卡352，下支撑杆350的上端设有向槽口方向突出的第二固定片353。采用该可选实施例，利用下支撑杆350倾斜的角度抵抗横向方面的力，提高支撑机构300的稳定性，防止支撑机构300侧倾，并且所需要支撑的重量越大，下支撑杆350的倾斜角度越小，抵抗侧倾的力量越大，且第一固定片351卡入到底座310上的下支撑杆固定槽312内，第二固定片353卡入到下承重隔板340上的支撑杆连接槽341内，通过下支撑杆350上下两端的第一固定片351和第二固定片353将下支撑杆350完美的固定在底座310和下承重隔板340之间，下支撑杆350的槽型钢结构，增加下支撑杆350自身的强度，且降低下支撑杆350自身的重量。
可选的，下支撑杆350的预设的倾斜角度为，当所需承载的重量为250kg时，预设的倾斜角度为89.1度；所需承载的重量每增加1倍，预设的倾斜角度的减小0.01倍。
可选地，下支撑杆350的预设的倾斜角度大于60度，小于或等于90度。
可选地，上支撑杆360为槽型钢结构，上支撑杆360的下端设有逆向槽口方向突出的第三固定片361，第三固定片361两侧设有向下弯折的第二固定卡362，第三固定片361突出的一端设有垂直向下弯折的挡片363，上支撑杆360的上端设有向槽口方向突出的第四固定片364。采用该可选实施例，第三固定片361卡入到下承重隔板340上的支撑杆连接槽341内，第四固定片364卡入到上承重隔板330上的上支撑杆固定槽331内，利用第三固定片361和第四固定片364稳定的将上支撑杆360固定在下承重隔板340和上承重隔板330支架。
图17至图24示出了风道结构的一个可选实施结构。
该可选实施例中，一种风道结构600，包括蜗壳610、导风壳620和排气圈630，蜗壳610的出气端与导风壳620的进气端连通，蜗壳610周圈边缘设有挡风片611；导风壳 620的出气端与排气圈630内侧弧面连通；排气圈630的周圈设有导风片631，导风片631为弧形结构，导风片631统一向同一侧弯折。
采用该可选的实施例，利用挡风片611，将其安装空间分成两部分，从而使风道结构600的进气完全来自同一侧，即安装有蒸发器的一侧，从而让气流集中经过蒸发器，使风道结构600内流通的气流尽可能多的和蒸发器交换能量，有效提高风道结构600的导风效率，并且导风效率提高之后可以适当降低风道结构600内离心风机的运行速度，达到降低噪音的目的。
可选地，蜗壳610包括第一蜗壳612和第二蜗壳613，第一蜗壳612上设有第一蜗槽614，第一蜗槽614内嵌入离心风机800，第二蜗壳613上设有第二蜗槽615，第二蜗槽615内设有进风口616，离心风机800的吸气端紧邻进风口616。采用该可选实施例，将蜗壳610分为两部分，便于后期对蜗壳610内部进行维修，且离心风机800与吸气端对应，保证气流能够更加顺畅的进入到蜗壳610内。
可选地，排气圈630与导风壳620出气端连接部分设有出气口632，出气口632内的导风片631贯通出气口632，排气圈630上除出气口632外的其他部位均为封闭结构，导风片631镶嵌在封闭结构上。采用该可选实施例，可保证半边出风，对于不出风的半边则直接镶嵌装饰性的导风片631，可降低成本。
可选地，离心风机800一端嵌入在第一蜗槽614内，嵌入的深度为第一蜗槽614的深度加第二蜗槽615的深度的二分之一到四分之三，并且第一蜗槽614之间密封连接，离心风机800的另一端设有裸漏在第一蜗壳612外侧。采用该可选实施例，将离心风机800的部分嵌入到蜗壳610内部，利用蜗壳610对离心风机800产生的噪音进行部分隔绝，减小噪音，同时采用嵌入的安装方式，让结构更加紧凑，减小空间占用率。
可选地，第一蜗槽614和第二蜗槽615的形状完全相同，第一蜗槽614的边缘和第二蜗槽615的边缘上设有密封槽，或者，第一蜗槽614的边缘或第二蜗槽615的边缘上设有密封槽，密封槽内设有密封条，第一蜗壳612和第二蜗壳613之间通过螺丝固定。采用该可选实施例，将结构完全相同的第一蜗槽614和第二蜗槽615扣合在一起形成一个整体的蜗槽，并且两部分中间的密封槽和密封条，可保证第一蜗槽614和第二蜗槽615之间的密封性，防止产生漏气。
可选地，导风壳620为半圆结构，导风壳620的弧面为出气端，导风壳620的下侧面为进气端，导风壳620的出气端与进风口616方向相反。采用该可选实施例，采用半圆结构，保证将气流从半边排出，利用导风壳620的出气端和进风口616方向相反，可以保证排出的被降温的空气，不会立即从进风口616处再次被吸入，从而保证进风口616吸入的空气温度相对高一些，提高对空气温度能量的利用率。
可选地，导风壳620的弧面边缘设有导槽621，导风壳620的上侧面中间设有通孔622。采用该可选实施例，利用预留的导槽621和通孔622，给热泵热水器中的支撑机构300提高安装空间，便于整体之间的组合。
可选地，导风壳620下侧内部与蜗壳610出风端相对的一侧设有弧形导风面。采用该可选实施例，对气流形成疏导，从而降低风阻，保证气流更加顺畅。
可选地，挡风片611一侧设有一个或多个管路槽617，挡风片611下侧两端设有挡风片安装固定片618。采用该可选实施例，利用挡风片安装固定片618可将整个风道结构600稳定的固定在热泵热水器内部，管路槽617则给热泵热水器内部的管路预留排布位置。
图25至图30示出了蒸发器的一个可选实施结构。
该可选实施例中，一种蒸发器700，包括换热管701，换热管701之间通过U形管702串联，换热管701排布在相互平行的两个面内，换热管701为弯曲结构，换热管701两端卡在换热管定位片703上，换热管定位片703一侧设有密封挡片704。
采用该可选实施例，利用弯曲结构的换热管701增加与空气的接触面积，从而增加蒸发器700的热交换效率，并且密封挡片704起到汇聚气流的作用，让气流汇聚到换热管701处，提升蒸发器700的热交换效率，将换热管701排布在两个面上的设计则有利于在保证换热效率的同时降低风阻。
可选地，换热管701排布的两个面上，其中一个面上的换热管701与另一个面上的两根换热管701之间的间隙对应。采用该可选实施例，让从两个换热管701内穿过的气流直接和另一个面上的换热管701进行接触换热，增加换热效率。
可选地，排布在一个面上的两根换热管701之间设有第一预设距离。采用该可选实施例，通过第一预设距离控制同一个面上的换热管701之间的间距，进而通过间距控制风阻的大小。
可选地，换热管701排布的两个面之间设有第二预设距离。采用该可选实施例，通过第二预设距离合理的控制换热管701排布的两个面之间的距离，同样可控制风阻的大小。
可选的第一预设距离和第二预设距离可根据实际情况设定，由两者共同决定了风阻的大小，第一预设距离和第二预设距离的最佳宽度均为换热管701的直径。
可选地，换热管701为V型结构，V型结构的弯折点为弧形。采用该可选实施例，通过V型结构的换热管701与气流的接触面积，V型结构的开口处面向热泵热水器的内侧，V型结构的两边紧贴热泵热水器内壁边缘，减少空间的占用。
可选地，换热器701为圆弧型结构。采用该可选实施例，通过圆弧型结构的换热管701与气流的接触面积，圆弧型结构的内侧弧面向热泵热水器的内侧，圆弧型结构的外侧弧面紧贴热泵热水器内壁边缘，减少空间的占用。
可选地，换热管定位片703为槽型结构，换热管定位片703上设有用于固定换热管701的定位孔705。采用该可选实施例，利用定位孔705对换热管701进行固定，将换热管701按照固定的形状规则的排布，起到对换热管701定型加固的作用。
可选地，换热管定位片703一端设有逆向槽口的固定卡706。采用该可选实施例，利用固定卡706对换热管定位片703进行固定，从而对整个蒸发器700进行固定。
可选地，密封挡片704为三角形结构其中一边通过螺丝与换热管定位片703一个侧面 固定连接。采用该可选实施例，三角形结构的密封挡片704与其安装位置处的热泵热水器内壁吻合，将换热管两侧的空间密闭，从而使气流能够完全的经过换热管701处进行换热。
可选地，可同时使用一个或多个换热器700，一个或多个换热器700之间进行并联。
图31至图36示出了离心风机的一个可选实施结构。
该可选实施例中，一种离心风机800，包括风机马达801和离心扇叶802，风机马达801一侧的输出端安装有离心扇叶802，离心扇叶802包括叶片803和叶轮804，风机马达801安装有离心扇叶802的一端设有散热孔805；离心扇叶802与风机马达801连接的侧面上设有风洞806，且该侧面向离心扇叶802内部凹陷；叶片803上与叶轮804连接处的一端具有缺口807。
采用该可选的实施例，且由于叶片803位于叶轮804连接的部位的出风会被叶轮804挡住，因利用叶片803上与叶轮804连接处的一端设有的缺口807，可以避免叶片803做无用功，且能降低叶片803受到的阻力，提高叶片803吸取气流的效率，并且风机马达801靠近离心扇叶802的一侧设有散热孔805，通过叶轮804转动产生的气流对风机马达801进行散热，增加风机马达801工作的稳定性，总体提高离心风机800的效率。
可选地，离心扇叶802通过螺丝直接固定连接在风机马达801的转动轴上。
可选地，风机马达801输出端相对的另一端设有辅助散热口808。采用该可选实施例，对风机马达801的两端同时进行散热，进一步增加风机马达801的散热效率，提高风机马达801的工作稳定性。
可选地，散热孔805和辅助散热口808在风机马达801内部贯通，形成散热风道结构。采用该可选实施例，利用叶片803转动产生的气流将部分气流从风机马达801的一端吸入，从另一端排出，让气流从风机马达801内部贯通，增加对风机马达801的散热效率。
可选地，风机马达801侧面设有密封安装片809。采用该可选实施例，便于将风机马达801固定在风道结构上，并且保持风机马达801与风道结构之间的密封性，从而防止漏气，降低离心风机的吸气压。
可选地，离心扇叶802与风机马达801连接的侧面周圈设有环形面810。采用该可选实施例，利用环形面810保持对叶片803进行固定。
可选地，叶片803的一端固定连接在环形面810上。采用该可选实施例，将整个叶片803的一端固定在环形面810上，保持叶片803整体承受风阻的能力，提高叶片803的牢固性，在生产时通过注塑成型，直接将叶片803固定在环形面810上即可。
可选地，离心扇叶802向内部凹陷的部分小于离心扇叶802的厚度。采用该可选实施例，保证离心扇叶802向内部凹陷的部分不突出到离心扇叶802的另一侧，降低空间的占用，使安装结构更加紧凑。
可选地，离心扇叶802向内部凹陷的部分，直径逐渐缩小。采用该可选实施例，凹陷的部分直径逐渐缩小，从而使凹陷部分具有倾斜的侧面，且内径逐渐缩小形成碗状，提高结构的稳定性，使离心扇叶802与风机马达801连接的一侧更加坚固。
可选地，风洞806均匀设置在离心扇叶802向内部凹陷的部分的侧面周圈上。采用该可选实施例，风洞806均匀的分布，使离心扇叶802在转动时，气流稳定。
可选地，风洞806为椭圆形或者圆形的孔洞，贯穿离心扇叶802向内部凹陷的侧面。
可选地，叶轮804与叶片803的外侧端连接，缺口807的宽度与叶轮804的宽度相同。采用该可选实施例，可降低叶片803转动时的风阻，且不影响叶片803的导风量。
可选地，离心扇叶802整体采用一体注塑成型。采用该可选实施例，可有效的增加离心扇叶802结构的稳定性，并且更便于生产制造。
热泵热水器的工作原理：压缩机400和冷凝器500为一个整体，压缩机400可对冷凝器500内的冷媒压缩使其释放热量，蒸发器700的进口端通过冷媒管与冷凝器500的出口端连通，蒸发器700的出口端通过冷媒管与冷凝器500的进口端连接，冷凝器500外侧盘绕换热器，换热器的进口端与加热管105的出口端连通，换热器的出口端与加热管105的进口端连通，且换热器的出口端与加热管105的进口端设有水泵，带动换热器和加热管105内的介质进行循环；空气经过蒸发器700时，对蒸发器700内的冷媒进行加热，蒸发器700内的冷媒吸收热量汽化，然后流入到冷凝器500内，在压缩机400的加压下冷媒液化并释放出热量，通过换热器对介质进行加热，然后水泵将加热后的介质输送到加热管105内，加热管105盘绕在水箱101外侧，对水箱101内的水进行加热，在冷媒和介质的不停循环下，吸收空气中的低温热量，对水箱内的水进行加热，整体耗能较小。
应当理解的是，本发明并不局限于上面已经描述并在附图中示出的结构，并且可以在不脱离其范围进行各种修改和改变。本发明的范围仅由所附的权利要求来限制。

Claims (10)

  1. 一种风道结构，包括蜗壳、导风壳和排气圈，所述蜗壳的出气端与所述导风壳的进气端连通，其特征在于，所述蜗壳周圈边缘设有挡风片；所述导风壳的出气端与所述排气圈内侧弧面连通；所述排气圈的周圈设有导风片，所述导风片为弧形结构，所述导风片统一向同一侧弯折。
  2. 如权利要求1所述的风道结构，其特征在于，所述蜗壳包括第一蜗壳和第二蜗壳，所述第一蜗壳上设有第一蜗槽，所述第一蜗槽内嵌入离心风机，所述第二蜗壳上设有第二蜗槽，所述第二蜗槽内设有进风口，所述离心扇叶的吸气端紧邻所述进风口。
  3. 如权利要求2所述的风道结构，其特征在于，所述排气圈与所述导风壳出气端连接部分设有出气口，所述出气口内的导风片贯通所述出气口，所述排气圈上除所述出气口外的其他部位均为封闭结构，所述导风片镶嵌在封闭结构上。
  4. 如权利要求2所述的风道结构，其特征在于，所述离心风机一端嵌入在所述第一蜗槽内，嵌入的深度为所述第一蜗槽的深度加所述第二蜗槽的深度的二分之一到四分之三，并且所述第一蜗槽之间密封连接，所述离心风机的另一端设有裸漏在第一蜗壳外侧。
  5. 如权利要求2所述的风道结构，其特征在于，所述第一蜗槽和所述第二蜗槽的形状完全相同，所述第一蜗槽的边缘和所述第二蜗槽的边缘上设有密封槽，或者，所述第一蜗槽的边缘或所述第二蜗槽的边缘上设有密封槽，所述密封槽内设有密封条，所述第一蜗壳和第二蜗壳之间通过螺丝固定。
  6. 如权利要求1至5任一项所述的风道结构，其特征在于，所述导风壳为半圆结构，所述导风壳的弧面为出气端，所述导风壳的下侧面为进气端，所述导风壳的出气端与所述进风口方向相反。
  7. 如权利要求6所述的风道结构，其特征在于，所述导风壳的弧面边缘设有导槽，所述导风壳的上侧面中间设有通孔。
  8. 如权利要求6或7所述的风道结构，其特征在于，所述导风壳下侧内部与蜗壳出风端相对的一侧设有弧形导风面。
  9. 如权利要求1至8任一项所述的风道结构，其特征在于，所述挡风片一侧设有一个或多个管路槽，所述挡风片下侧两端设有挡风片安装固定片。
  10. 一种热泵热水器，其特征在于，包括权力要求1至9任一项所述的风道结构。
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