CN220541221U

CN220541221U - Air duct machine

Info

Publication number: CN220541221U
Application number: CN202321827158.7U
Authority: CN
Inventors: 赵得科; 赵勋; 许纪刚
Original assignee: Hisense Air Conditioning Co Ltd
Current assignee: Hisense Air Conditioning Co Ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2024-02-27
Anticipated expiration: 2033-07-12

Abstract

The utility model relates to an air duct machine, which belongs to the technical field of air conditioners, and comprises: the device comprises a shell, a heat exchanger, a fan, a first guide plate and a second guide plate, wherein the first guide plate is arranged at an air supply port of a volute, and the length direction of the first guide plate is the same as the length direction of the heat exchanger; the number of the second guide plates is multiple, the second guide plates are arranged on the first guide plates at intervals along the length direction of the heat exchanger, and the planes of the second guide plates are parallel to the opening direction of the air supply outlet; the air flow generated by the fan passes through the air supply port, the first guide plate and the second guide plate divide the air supply port into a plurality of air supply channels, and the air flow is uniformly blown to the heat exchanger through the plurality of air supply channels; the air supply port of the volute is provided with the first guide plate and the second guide plate, the first guide plate and the second guide plate have the functions of dividing and guiding air flow, the air supply port is divided into a plurality of air supply channels, the flow field at the air supply port is more uniform, the angle of the air flow entering the heat exchanger is reduced, and vortex noise is improved.

Description

Air duct machine

Technical Field

The application relates to the technical field of air conditioners, in particular to an air duct machine.

Background

The air pipe machine, namely the air pipe type air conditioner, is connected with an air pipe to supply air to the indoor, the air pipe machine is generally arranged indoors, and after the air pipe machine cools or heats indoor return air through a heat exchanger, cold air or hot air is formed to be conveyed indoors, so that the refrigeration or heating in the indoor environment is realized.

The air pipe machine generally adopts a centrifugal fan, when the centrifugal fan rotates at a high speed, high-speed air flow is thrown out to the inclined front under the action of centrifugal force and inertia force, the air flow is diffused outwards through a volute, the air flow is blown to a heat exchanger at a larger incidence angle, when the air flow enters the heat exchanger, air separation occurs when the air flow enters the heat exchanger, a downstream moving shedding vortex is formed at a shearing layer, and an upstream feedback sound wave is generated by collision with a rear wall, when the shedding frequency of the vortex is similar to the frequency of the upstream feedback sound wave, a self-excitation oscillation phenomenon is generated, so that abnormal sound is generated, and the use experience of a user is influenced.

Disclosure of Invention

The present utility model solves at least one of the technical problems in the related art to a certain extent.

Therefore, the application aims at providing an air duct machine, and the air flow generated by a fan passes through an air supply opening, and a first guide plate and a second guide plate are arranged at the air supply opening of a volute, so that the flow field at the air supply opening is more uniform, the angle of the air flow entering a heat exchanger is reduced, and vortex noise is improved.

In order to achieve the above object, the present utility model provides an air duct machine, comprising:

the shell is provided with an air inlet and an air outlet;

the heat exchanger is arranged in the shell and is close to the air outlet;

the fan is arranged on one side of the heat exchanger, which is close to the air inlet, and comprises a volute and a centrifugal fan arranged in the volute, an air supply opening and an air inlet are formed in the volute, and the centrifugal fan rotates to enable air to enter the volute through the air inlet and be blown to the heat exchanger through the air supply opening;

the first guide plate is arranged at the air supply opening of the volute, and the length direction of the first guide plate is the same as the length direction of the heat exchanger;

the number of the second guide plates is multiple, the second guide plates are arranged on the first guide plates at intervals along the length direction of the heat exchanger, and the plane of the second guide plates is parallel to the opening direction of the air supply outlet;

the air flow generated by the fan passes through the air supply opening, the first guide plate and the second guide plate divide the air supply opening into a plurality of air supply channels, and the air flow is uniformly blown to the heat exchanger through the plurality of air supply channels.

In the technical scheme, the first guide plate and the second guide plate are arranged at the air supply opening of the volute, and the first guide plate and the second guide plate have the functions of dividing and guiding air flow, so that the air supply opening is divided into a plurality of air supply channels, the flow field at the air supply opening is more uniform, the angle of the air flow entering the heat exchanger is reduced, and vortex noise is improved.

In some embodiments of the present application, the width direction of the first baffle is from one end of the heat exchanger to one end close to the centrifugal fan, and the first baffle and the second baffle are perpendicular to each other.

In the technical scheme, the width direction of the first guide plate is arranged from one end of the heat exchanger to one end close to the centrifugal fan, the first guide plate and the second guide plate are mutually perpendicular, the air supply port can be divided into a plurality of air supply channels, the flow speed of air flow in a single air supply channel is reduced, and the air flow at the air supply port is uniformly blown to the heat exchanger along each air supply channel.

In some embodiments of the present application, the second baffle has a height near the side of the heat exchanger that is greater than a height near the side of the centrifugal fan.

In the technical scheme, when the air flow passes through the second guide plate, the flow angle of the air flow is gradually reduced along the second guide plate because the height of the second guide plate, which is close to one side of the heat exchanger, is larger than the height of the second guide plate, which is close to one side of the centrifugal fan, and the turbulence degree of the air flow at the air supply outlet is reduced.

In some embodiments of the present application, the second guide plate faces one side of the heat exchanger and is provided with guide teeth, and the guide teeth are arranged in a plurality of positions and are spaced along the length direction of the side edge of the guide teeth.

In the technical scheme, the guide teeth on the second guide plate can change the direction and speed of the air flow, so that the generation of air flow vortex is effectively inhibited, and the vortex noise is further improved.

In some embodiments of the present application, the first baffle and the second baffle are both located within the volute.

In the technical scheme, the first guide plate and the second guide plate are both positioned in the volute, so that the arrangement of the first guide plate and the second guide plate is prevented from occupying the space outside the volute, and the first guide plate and the second guide plate can be installed in the original installation space of the volute.

In some embodiments of the present application, an inner wall of the volute parallel to the first baffle at the air supply opening is a mounting wall, and a third baffle is mounted on the mounting wall, and the third baffle is parallel to the second baffle.

In the technical scheme, the third guide plate is arranged on the installation wall, and the arrangement of the third guide plate enhances the guide effect on the air flow.

In some embodiments of the present application, the number of the first deflectors is a plurality of the first deflectors, and a plurality of the first deflectors are arranged in parallel at equal intervals.

In the technical scheme, the number of the first guide plates is one or more, the number of the first guide plates can be set according to the requirement, when the size of the air supply opening is large, a plurality of first guide plates can be installed at the air supply opening, the first guide plates are arranged in parallel at equal intervals, the air supply opening is uniformly divided into a plurality of air supply channels, and high-speed air generated by the fan is uniformly decelerated at the air supply opening.

In some embodiments of the present application, the number of third deflectors is the same as the number of second deflectors, and the third deflectors are arranged in a one-to-one correspondence.

In the technical scheme, the third guide plates and the second guide plate supports are arranged in one-to-one correspondence, and the air supply port can be equally divided into a plurality of air supply channels, so that the same air flow velocity in each air supply channel is ensured.

In some embodiments of the present application, the second baffle is disposed apart from an end of the first baffle and the interval between the volutes, and the third baffle is disposed apart from an end of the mounting wall and the interval between the first baffle.

In the technical scheme, the second guide plate is arranged at intervals between one end far away from the first guide plate and the volute, the third guide plate is arranged at intervals between one end far away from the mounting wall and the first guide plate, namely, a certain gap is reserved between the second guide plate and the volute, a certain gap is reserved between the third guide plate and the first guide plate, blocking of air flow is reduced, and air flow generated by the fan can be quickly and smoothly blown to the heat exchanger through the air supply port.

In some embodiments of the present application, the scroll casing includes a first scroll casing and a second scroll casing, the first scroll casing and the second scroll casing are scroll casings with one end open, the first scroll casing and the second scroll casing are assembled by fastening, the opening of the first scroll casing and the opening of the second scroll casing are assembled by fastening to form the air supply port, and the first deflector is disposed on the first scroll casing.

In the technical scheme, the spiral case includes first spiral case and second spiral case, and the lock is joined in marriage between first spiral case and the second spiral case, and first guide plate is located on the first spiral case, and first guide plate can be with first spiral case integrated into one piece, also can make detachable mounting means, the dismantlement and the installation of first guide plate of being convenient for.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a perspective view of the overall structure of an air duct machine according to an embodiment of the present application;

FIG. 2 is a front view of the overall structure of an air duct machine according to an embodiment of the present application;

FIG. 3 is a cross-sectional view of an air duct machine according to an embodiment of the present application;

FIG. 4 is a top plan view of an air duct machine according to an embodiment of the present application with an upper cover removed;

FIG. 5 is a schematic view of a ducted air conditioner according to an embodiment of the present application with an upper cover and a rear side cover removed;

FIG. 6 is a schematic view of a ducted air conditioner according to an embodiment of the present application with the upper cover and rear side cover removed;

FIG. 7 is a schematic view of an air duct machine according to an embodiment of the present application with the upper cover, rear side cover, and baffle removed;

FIG. 8 is a schematic view of the mounting locations of a fan and heat exchanger of an air duct machine according to an embodiment of the present application;

FIG. 9 is a schematic view of a fan of an air duct machine mounted on a baffle according to an embodiment of the present application;

FIG. 10 is a perspective view of a blower configuration of an air duct machine according to an embodiment of the present application;

FIG. 11 is a front view of a blower configuration of an air duct machine according to an embodiment of the present application;

FIG. 12 is a cross-sectional view of a blower configuration D-D of an air duct machine according to an embodiment of the present application;

FIG. 13 is an enlarged view of a blower A of an air duct machine according to an embodiment of the present application;

fig. 14 is a structural perspective view of a volute of an air duct machine according to an embodiment of the present application;

FIG. 15 is an enlarged view of a volute B of an air duct machine according to an embodiment of the present application;

fig. 16 is a structural front view of a volute of an ducted air machine according to an embodiment of the present application;

fig. 17 is a structural perspective view of a volute of an air duct machine according to an embodiment of the present application;

fig. 18 is an enlarged view at a scroll casing C of the ducted machine according to the embodiment of the present application;

FIG. 19 is an exploded schematic view of a volute of an air duct machine according to an embodiment of the present application;

fig. 20 is a schematic view of an upper volute structure of an air duct machine according to an embodiment of the present application.

In the above figures: 100. a housing; 101. an air inlet; 102. an air outlet; 103. an upper cover; 104. a cooling chamber; 105. a fan cavity; 200. a volute; 201. an air inlet; 202. an air supply port; 203. a first volute; 204. a second volute; 205. a mounting wall; 300. a partition plate; 400. a heat exchanger; 500. a centrifugal fan; 600. a first deflector; 700. a second deflector; 800. third guide plate, 900, water conservancy diversion tooth.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the present utility model, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, or in communication with each other, for example; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The present utility model will be specifically described below by way of exemplary embodiments. It is to be understood that elements, structures, and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the present application, the ducted air conditioner performs a refrigerating cycle of the ducted air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies a refrigerant to the air that has been conditioned and heat exchanged. The compressor compresses refrigerant gas in a low-temperature and low-pressure state and discharges refrigerant gas in a high-temperature and high-pressure state. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process. The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator may achieve a cooling effect by exchanging heat with a material to be cooled using latent heat of evaporation of a refrigerant. In the whole cycle, the air conditioner of the air duct machine can adjust the temperature of the indoor space. The ducted air conditioner includes an indoor unit and an outdoor unit, the outdoor unit refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the ducted air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the ducted air conditioner or the air conditioner outdoor unit. The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the ducted air conditioner is used as a heater for the heating mode, and when the indoor heat exchanger is used as an evaporator, the ducted air conditioner is used as a cooler for the cooling mode.

Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 9, in an exemplary embodiment of the ducted air machine of the present utility model, the ducted air machine includes: the heat exchanger comprises a shell 100, a heat exchanger 400, a fan, a first guide plate 600 and a second guide plate 700, wherein the shell 100 is provided with an air inlet 101 and an air outlet 102, a containing cavity is defined in the shell 100, a partition plate 300 is arranged in the containing cavity of the shell 100, the partition plate 300 divides the containing cavity into a cooling cavity 104 and a fan cavity 105, the heat exchanger 400 is arranged in the cooling cavity 104, the heat exchanger 400 is close to the air outlet 102, the fan is arranged in the fan cavity 105 and comprises a volute 200 and a centrifugal fan 500 arranged in the volute 200, the volute 200 is provided with an air supply inlet 202 and an air inlet 201, and the centrifugal fan 500 rotates to enable air to enter the volute 200 through the air inlet 201 and to be blown to the heat exchanger 400 through the air supply inlet 202.

In the prior art, when the fan works, indoor air is sucked into the fan cavity 105 through the air inlet 101 and then enters the volute 200 through the air inlet 201, air flow passing through the centrifugal fan 500 enters the cooling cavity 104 through the air outlet 202 and is blown to the heat exchanger 400, and air flow passing through the heat exchanger 400 is cooled and finally enters the room through the air outlet 102, so that circulation is formed to cool the room; when the air flow is sent into the cooling cavity 104 from the air supply port 202 through the fan, the flow speed of the air flow is high, the air flow is blown to the heat exchanger 400 at a large incident angle, and fin noise is easily generated when the air flow directly passes through the heat exchanger 400.

In the present application, the first baffle 600 is disposed at the air supply port 202 of the volute 200, the length direction of the first baffle 600 is the same as the length direction of the heat exchanger 400, the number of the second baffles 700 is multiple, the multiple second baffles are disposed on the first baffle 600 at intervals along the length direction of the heat exchanger 400, and the plane of the second baffle 700 is parallel to the opening direction of the air supply port 202; the air flow entering the cooling cavity 104 through the air supply opening 202 of the fan and blowing to the heat exchanger 400 passes through the first guide plate 600 and the second guide plate 700 and then flows through the heat exchanger 400, the first guide plate 600 is arranged at the air supply opening 202 of the volute 200, a plurality of second guide plates are arranged on the first guide plate 600 at intervals along the length direction of the heat exchanger 400, when the air flow generated by the fan passes through the air supply opening 202, the first guide plate 600 and the second guide plate 700 divide the air supply opening 202 into a plurality of air supply channels, and the air flow is uniformly blown to the heat exchanger 400 through the plurality of air supply channels; in the air flow process, the air flow is changed in flow direction and speed by the first guide plate 600 and the second guide plate 700, so that the incidence angle of the air flow passing through the first guide plate 600 and the second guide plate 700 to the heat exchanger 400 relative to the air flow directly flowing into the heat exchanger 400 is reduced, and the air flow speed is reduced, thereby effectively reducing the fin noise of the heat exchanger 400; namely, the first deflector 600 and the second deflector 700 are arranged at the air supply port 202 of the volute 200, and the first deflector 600 and the second deflector 700 have the functions of dividing and guiding air flow, so that the air supply port 202 is divided into a plurality of air supply channels, the flow field at the air supply port 202 is more uniform, the angle of the air flow entering the heat exchanger 400 is reduced, and vortex noise is improved.

As shown in fig. 10 to 13, in some embodiments, the width direction of the first baffle 600 is set from one end of the heat exchanger 400 to one end near the centrifugal fan 500, and the first baffle 600 and the second baffle 700 are perpendicular to each other; the first guide plate 600 is transversely arranged at the air supply port 202, namely, is parallel to the air supply direction of the air flow, the length of the first guide plate 600 is the same as that of the air supply port 202, two sides of the length direction of the first guide plate 600 are fixed on the inner wall of the air supply port 202 of the volute 200, the second guide plate 700 is vertically arranged on the first guide plate 600, the air supply port 202 can be divided into a plurality of air supply channels by the arrangement of the first guide plate 600 and the second guide plate 700, and the air flow at the air supply port 202 is divided and guided, so that the flow velocity of the air flow in a single air supply channel is reduced, the air flow at the air supply port 202 is uniformly blown to the heat exchanger 400 along each air supply channel, and fin noise of the heat exchanger 400 is effectively relieved.

As shown in fig. 14-18, in some embodiments, the second baffle 700 has a greater height on a side proximate to the heat exchanger 400 than on a side proximate to the centrifugal fan 500; when the air flow flows through the second guide plate 700, the height of the second guide plate 700 close to the centrifugal fan 500 is lower, so that the blocking of the second guide plate 700 to the air flow generated by the fan can be reduced, the phenomenon that the air flow is excessively disturbed by the second guide plate 700 to affect the refrigerating capacity of the air conditioner is avoided, the flowing direction of the air flow is parallel to the plane of the second guide plate 700, the incident angle of the air flow is gradually reduced along with the increase of the height of the second guide plate 700, the flow speed of the air flow is also gradually reduced along with the increase of the height of the second guide plate 700, the turbulence degree of the air flow at the air supply port 202 is further reduced, the air flow sent out from the air supply port is more stable, the air supply is more uniform, and the fin noise of the heat exchanger 400 is effectively reduced.

In some embodiments, the height of the second baffle 700 increases gradually toward the heat exchanger 400, and the second baffle 700 is in the form of a sector plate or a triangle plate.

As shown in fig. 14-18, in some embodiments, a side of the second baffle 700 facing the heat exchanger 400 is provided with a plurality of guide teeth 900, and the guide teeth 900 are spaced along the length direction of the side; the guide teeth 900 on the second guide plate can change the direction and speed of the air flow, effectively inhibit the generation of air flow vortex, and further reduce the generation of air flow vortex at the air supply port 202 of the volute 200.

In some embodiments, the guide teeth 900 may be saw-tooth shaped with the roots of two adjacent guide teeth meeting or with a distance between the roots of two adjacent guide teeth.

14-18, in some embodiments, both the first baffle 600 and the second baffle 700 are located within the volute 200; the width of the second deflector 700 is the same as that of the first deflector 600, and the width of the first deflector 600 is not larger than that of the air supply port 202, so that the first deflector 600 is prevented from being too wide to interfere the operation of the centrifugal fan 500 and influence the air supply quantity of the centrifugal fan 500; the first deflector 600 and the second deflector 700 are both arranged in the air supply port 202 of the volute 200, so that the arrangement of the first deflector 600 and the second deflector 700 is prevented from occupying the space outside the volute 200, and the first deflector 600 and the second deflector 700 can be installed in the original installation space of the volute 200; the first deflector 600 and the second deflector 700 are both installed in the scroll 200, and do not affect the diverting and guiding actions of the first deflector 600 and the second deflector 700 on the air flow.

In some embodiments, the number of the first deflectors 600 is a plurality, and the first deflectors are arranged in parallel at equal intervals; the number of the first guide plates 600 is one or more, the number of the first guide plates 600 can be set according to the requirement, at least one first guide plate 600 is arranged, and the first guide plates 600 are arranged in the middle of the air supply port 202 and can divide the air flow of the air supply port 202 into at least two air outlet channels; when the size of the air supply port 202 is larger, a plurality of first guide plates 600 can be installed at the air supply port 202, and the first guide plates 600 are arranged in parallel at equal intervals, so that the air supply port 202 is uniformly divided into a plurality of air supply channels, and high-speed air generated by a fan is uniformly decelerated at the air supply port 202.

As shown in fig. 16-18, in some embodiments, an inner wall of the volute 200 parallel to the first baffle 600 at the air inlet 202 is a mounting wall 205, and a third baffle 800 is mounted on the mounting wall 205, and the third baffle 800 is parallel to the second baffle 700; the upper wall of the air outlet 102 of the volute 200 is the installation wall 205, the third guide plate 800 is arranged on the installation wall 205, the third guide plate 800 can be integrally formed with the volute 200, the arrangement of the third guide plate 800 enhances the guide effect on air flow, and the noise reduction effect is improved; in addition, the height of the third guide plate 800 gradually increases toward the direction close to the heat exchanger 400, and guide teeth 900 are provided on one side of the third guide plate 800 toward the heat exchanger 400, where the guide teeth 900 are plural and are disposed at intervals along the length direction of the side where the guide teeth 900 are located, so as to guide the air flow.

As shown in fig. 16, in some embodiments, the number of third deflectors 800 is the same as the number of second deflectors 700, and are arranged in a one-to-one correspondence; the distance between any two adjacent third guide plates 800 is the same as the distance between any two adjacent second guide plates 700, the third guide plates 800 are arranged right above the second guide plates 700, the shapes of the third guide plates 800 and the second guide plates 700 are the same, the processing is convenient, the arrangement of the third guide plates 800 and the second guide plates 700 can divide the air supply port 202 into a plurality of air supply channels uniformly, the air flow velocity in each air supply channel is ensured to be the same, and the air flow at the air supply port 202 tends to be more uniform. The number of the third baffle 800 and the second baffle 700 is selected according to the actual situation.

In some embodiments, the first baffle 600 is disposed horizontally, the second baffle 700 is disposed above or below the first baffle 600, and the mounting wall 205 may be located above or below the first baffle 600.

In some embodiments, an end of the second baffle 700 remote from the first baffle 600 is spaced from the volute 200, and an end of the third baffle 800 remote from the mounting wall 205 is spaced from the first baffle 600; that is, a certain gap is left between the second deflector 700 and the volute 200, a certain gap is left between the third deflector 800 and the first deflector 600, the blocking of the second deflector 700 and the third deflector 800 to the air flow is reduced, and the air flow generated by the fan can be quickly and smoothly blown to the heat exchanger 400 through the air supply port 202.

19-20, in some embodiments, the scroll 200 includes a first scroll 203 and a second scroll 204, where the first scroll 203 and the second scroll 204 are scroll casings with one open end, the first scroll 203 and the second scroll 204 are assembled by fastening, the openings of the first scroll 203 and the second scroll 204 are assembled by fastening to form an air supply port 202, and the first deflector 600 is disposed on the first scroll 203; the first guide plate 600 can be integrally formed with the first volute 203, the structural strength is high, the detachable installation mode can be manufactured, the first guide plate 600 is fixed at the corresponding position of the first volute 203 by screws through arranging threaded holes on the first guide plate 600, the detachable installation of the first guide plate 600 is realized, the installation and the detachment are convenient and quick, and the connection is firm.

The ducted air conditioner in the present application includes a cabinet 100, the cabinet 100 forming the external appearance of the ducted air conditioner, the cabinet 100 including an upper cover 103 at the top thereof, a bottom cover at the bottom thereof, front and rear side covers at the front and rear sides thereof, and left and right side covers at the left and right sides thereof.

The housing 100 defines a receiving chamber, the housing 100 has an air inlet 101 and an air outlet 102, the air inlet 101 is used as an inlet for air outside the housing 100 to flow in, and the air outlet 102 is used as an outlet for air flowing out after heat exchange in the housing 100. The air inlet 101 may be disposed at one end of the casing 100, the air outlet 102 may be disposed at the other end of the casing 100, the air inlet 101 and the air outlet 102 may be disposed at two ends of the casing 100 opposite to each other, and the air inlet 101 and the air outlet 102 may be disposed on front and rear side covers of the casing 100. A partition plate 300 is arranged in the accommodating cavity of the casing 100, the accommodating cavity is divided into a cooling cavity 104 and a fan cavity 105 by the partition plate 300, wherein the cooling cavity 104 is communicated with the air outlet 102, and the fan cavity 105 is communicated with the air inlet 101. The heat exchanger 400 is obliquely arranged in the casing 100, specifically, the heat exchanger 400 is arranged in the cooling cavity 104, and the heat exchanger 400 is obliquely arranged towards one side close to the air outlet 102; the heat exchanger 400 includes a plurality of fins arranged side by side, and a plurality of heat exchange tubes penetrating the fins, wherein the heat exchange tubes are communicated to form a pipeline for refrigerant circulation, and the heat exchanger 400 is used for exchanging heat with air entering the casing 100.

The fan is arranged in the fan cavity 105, the fan is arranged on one side of the heat exchanger 400, which is close to the air inlet 101, the fan is provided with at least one fan, a plurality of fans are arranged side by side, the fan comprises a volute 200 and a centrifugal fan 500 arranged in the volute 200, the volute 200 is provided with an air supply port 202 for supplying air to the heat exchanger 400 and an air inlet 201 for supplying air to the volute 200, the air supply port 202 is close to the heat exchanger 400, the centrifugal fan 500 rotates to enable air to enter the volute 200 through the air inlet 201 and be blown to the heat exchanger 400 through the air supply port 202, the volute 200 of the fan is accommodated in the fan cavity 105, and the outer wall of the air supply port 202 of the volute 200 is connected with the partition 300, so that the air supply port 202 of the fan is communicated with the cooling cavity 104.

In this embodiment, by providing the first baffle 600 and the second baffle 700 at the air supply port 202 of the volute 200, the first baffle 600 and the second baffle 700 have the effect of splitting and guiding the air flow at the air supply port 202, and the first baffle 600 and the second baffle 700 divide the air supply port 202 into a plurality of air supply channels, so that the flow field at the air supply port 202 is more uniform, the angle of the air flow entering the heat exchanger 400 is reduced, the wind speed is reduced, the vortex noise is improved, and the fin noise of the heat exchanger 400 is effectively reduced.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. An air duct machine, characterized in that it comprises:

the shell is provided with an air inlet and an air outlet;

the heat exchanger is arranged in the shell and is close to the air outlet;

2. The ducted air conditioner according to claim 1, wherein the first baffle is disposed from one end of the heat exchanger to an end adjacent to the centrifugal fan in a width direction, and the first baffle and the second baffle are perpendicular to each other.

3. The ducted air machine according to claim 2, characterized in that the second baffle has a greater height on the side of the heat exchanger than on the side of the centrifugal fan.

4. The ducted air conditioner of claim 2, wherein the second baffle is provided with a plurality of guide teeth facing the side of the heat exchanger, and the guide teeth are arranged at intervals along the length direction of the side where the guide teeth are located.

5. The ducted air machine of claim 2, wherein the first baffle and the second baffle are both located within the volute.

6. The ducted air conditioner according to claim 2, wherein the number of the first deflectors is plural, and the plural first deflectors are arranged in parallel at equal intervals.

7. The ducted air conditioner according to claim 2, wherein an inner wall of the volute, which is parallel to the first deflector, at an air supply opening of the volute is a mounting wall, and a third deflector is mounted on the mounting wall, and the third deflector and the second deflector are arranged in parallel.

8. The ducted air conditioner according to claim 7, wherein the number of the third deflectors is the same as the number of the second deflectors, and are arranged in one-to-one correspondence.

9. The ducted air conditioner according to claim 8, wherein an end of the second baffle remote from the first baffle is spaced from the scroll casing, and an end of the third baffle remote from the mounting wall is spaced from the first baffle.

10. The ducted air conditioner according to claim 1, wherein the scroll includes a first scroll and a second scroll, the first scroll and the second scroll are scroll casings with one end open, the first scroll and the second scroll are snap-fitted, the openings of the first scroll and the second scroll are snap-fitted into the air supply opening, and the first deflector is disposed on the first scroll.