CN110748966A - Machine in heat exchanger, heat exchange assembly and air conditioning - Google Patents
Machine in heat exchanger, heat exchange assembly and air conditioning Download PDFInfo
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- CN110748966A CN110748966A CN201910994614.9A CN201910994614A CN110748966A CN 110748966 A CN110748966 A CN 110748966A CN 201910994614 A CN201910994614 A CN 201910994614A CN 110748966 A CN110748966 A CN 110748966A
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- heat exchange
- flow fan
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0067—Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0025—Cross-flow or tangential fans
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
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- Thermal Sciences (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The invention relates to the technical field of air conditioners, in particular to a heat exchanger, a heat exchange assembly and an air conditioner indoor unit. The invention aims to solve the problems that the space between the corners of adjacent heat exchange fins and a cross-flow fan of the existing indoor heat exchanger is large, the space is not effectively utilized, and the refrigerating and heating performances of an indoor unit of an air conditioner cannot be fully exerted. For the purpose, the vertical heat exchange plates are arranged on the inner side of the outer heat exchange plate group, and the vertical heat exchange plates extending towards the cross-flow fan are arranged at the adjacent corners of at least the first section of heat exchange plate and the second section of heat exchange plate so as to increase the heat exchange area of the heat exchanger. Therefore, the space between the corner of the adjacent heat exchange plate and the cross-flow fan is effectively utilized, the heat exchange effect of the heat exchanger is further improved, and the heating and refrigerating performance of the indoor unit of the air conditioner is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a heat exchanger, a heat exchange assembly and an air conditioner indoor unit.
Background
An air conditioner generally includes an indoor unit and an outdoor unit, and the outdoor unit generally includes an outdoor heat exchanger, a compressor, and an outdoor fan. The first end of the outdoor heat exchanger is connected with the indoor heat exchanger through the compressor, and the second end of the outdoor heat exchanger is connected with the indoor heat exchanger through the throttling device. When the air conditioner refrigerates, the outdoor heat exchanger is used as a condenser to perform condensation heat release, and the indoor heat exchanger is used as an evaporator to perform evaporation heat absorption; when the air conditioner heats, the outdoor heat exchanger is used as an evaporator to perform the evaporation and heat absorption functions, and the indoor heat exchanger is used as a condenser to perform the condensation and heat release functions, so that the temperature of indoor air is adjusted.
An existing wall-mounted air conditioner indoor unit comprises a cross-flow fan and an indoor heat exchanger. The cross flow fan is cylindrical, and a plurality of blades of the cross flow fan are arranged around an axis at intervals to form an impeller. A main shaft at one end of the cross-flow fan is connected with a motor, and the motor drives the cross-flow fan to rotate around an axis to form wind flow. The indoor heat exchanger comprises a front row of heat exchange fins, a rear row of heat exchange fins and a lower row of heat exchange fins which are sequentially connected, wherein the front row of heat exchange fins, the rear row of heat exchange fins and the lower row of heat exchange fins are all arranged outside the cross-flow fan around the cross-flow fan, refrigerant pipes are arranged inside the front row of heat exchange fins, the rear row of heat exchange fins and the lower row of heat exchange fins, and the end parts of the refrigerant pipes are communicated and converged and then connected with an outdoor unit through a refrigerant main pipeline to form a loop. When the cross-flow fan works, wind flow is sucked into the cross-flow fan from one side of the cross-flow fan, then the wind flow is discharged from the other side of the cross-flow fan, and the wind flow exchanges heat with the indoor heat exchanger when passing through the cross-flow fan, so that cold wind or hot wind is formed and blown to the indoor.
However, the existing indoor heat exchanger includes a front row of heat exchange fins, a rear row of heat exchange fins and a lower row of heat exchange fins which are connected in sequence, and corners are formed when adjacent heat exchange fins are connected, so that the space between the corners of the adjacent heat exchange fins and the cross-flow fan is large and is not effectively utilized, and the refrigeration and heating performance of the indoor unit of the air conditioner cannot be fully exerted.
Accordingly, there is a need in the art for a new heat exchanger, heat exchange assembly and indoor unit of an air conditioner to solve the above problems.
Disclosure of Invention
The invention provides a heat exchanger, a heat exchange assembly and an air conditioner indoor unit, aiming at solving the problems that the space between the corners of adjacent heat exchange fins and a cross-flow fan of the existing indoor heat exchanger is large, the space is not effectively utilized, and the refrigerating and heating performances of the air conditioner indoor unit cannot be fully exerted.
The invention provides a heat exchanger which is used in combination with a cross-flow fan, wherein the heat exchanger comprises an external heat exchange plate set and a vertical heat exchange plate connected to the inner side of the external heat exchange plate set; the external heat exchange plate group at least comprises a first section of heat exchange plate and a second section of heat exchange plate; the first section of heat exchange plate and the second section of heat exchange plate are abutted, and both the first section of heat exchange plate and the second section of heat exchange plate extend along the axial direction of the cross-flow fan and are arranged outside the cross-flow fan in an enclosing manner; a first refrigerant pipe is respectively arranged inside the first section of heat exchange plate and the second section of heat exchange plate, and a first refrigerant inlet and a first refrigerant outlet are arranged at the end part of the first refrigerant pipe; at least the adjacent corners of the first section of heat exchange plate and the second section of heat exchange plate are provided with the vertical rows of heat exchange plates; and the vertical heat exchange plates extend towards the cross-flow fan.
As a preferable technical solution of the heat exchanger provided by the present invention, one end of the vertical heat exchange plate facing the cross-flow fan is formed with a concave surface to adapt to the shape of the cross-flow fan.
As a preferable technical solution of the heat exchanger provided by the present invention, a plurality of the vertical heat exchange plates are connected to an inner side of the outer heat exchange plate group along an axial direction of the cross flow fan.
As a preferable technical solution of the heat exchanger provided by the present invention, a second refrigerant pipe is disposed inside the vertical heat exchange plate, and the second refrigerant pipe is communicated with the first refrigerant pipe; or the vertical heat exchange plates are fins.
In addition, the invention also provides a heat exchange assembly which comprises the cross-flow fan and the heat exchanger.
As a preferable technical solution of the heat exchange assembly provided by the present invention, the cross-flow fan is provided with a radial contraction section corresponding to the vertical heat exchange plates along an axial direction, two ends of the radial contraction section are respectively connected with a first side surface and a second side surface which are oppositely arranged, the first side surface, the second side surface and the radial contraction section together enclose an annular space, and at least one of the first side surface, the second side surface and the radial contraction section is provided with an air hole which enables the cross-flow fan to communicate with the annular space; and at least part of the vertical heat exchange plates extend into the annular space.
As a preferable technical solution of the heat exchange assembly provided by the present invention, the cross-flow fan includes a first impeller and a second impeller, the first impeller and the second impeller are coaxially connected by a connecting shaft, the connecting shaft forms the radial contraction section, and the diameters of the connecting shaft are respectively smaller than the diameters of the first impeller and the second impeller; at least one of the first side surface and the second side surface is a disk, and the disk is provided with the air holes.
As a preferable technical solution of the heat exchange assembly provided by the present invention, at least one of the first side surface and the second side surface is formed by bending blades of the cross flow fan toward an axis, and a gap between adjacent blades forms the air hole.
As a preferable technical solution of the heat exchange assembly provided by the present invention, the reduced diameter section is formed by bending the blade toward the axis and then extending the blade in the axial direction.
Finally, the invention also provides an air-conditioning indoor unit, which comprises a shell framework, a water pan and the heat exchange assembly; the heat exchanger and the cross-flow fan are both arranged on the inner side of the shell framework, a first water tank is arranged on the inner side of the shell framework below the heat exchanger, and the first water tank is used for receiving condensed water formed on the outer surface of the heat exchanger; the water pan is arranged right below the vertical heat exchange plates and connected with the inner side of the shell framework, and a second water tank with an opening facing the vertical heat exchange plates is arranged on the water pan; the second tank is provided with a drain end extending toward the first tank.
According to the heat exchanger, the heat exchange assembly and the air-conditioning indoor unit, the vertical heat exchange plates are arranged on the inner side of the outer heat exchange plate set, and the vertical heat exchange plates extending towards the cross-flow fan are arranged at the adjacent positions of at least the first section of heat exchange plate and the second section of heat exchange plate, so that the heat exchange area of the heat exchanger is increased. Therefore, the space between the corner of the adjacent heat exchange plate and the cross-flow fan is effectively utilized, the heat exchange effect of the heat exchanger is further improved, and the heating and refrigerating performance of the indoor unit of the air conditioner is improved.
In addition, the radial contraction section corresponding to the vertical heat exchange plate is arranged on the cross flow fan, at least part of the vertical heat exchange plate extends into the annular space, and the cross flow fan is provided with the air holes leading to the annular space, so that the ventilation quantity in the annular space is increased, and the heat exchange effect of the heat exchanger and the heating and refrigerating performance of the indoor unit of the air conditioner are further improved.
Drawings
The heat exchanger, the heat exchange assembly and the air conditioner indoor unit of the present invention will be described with reference to the accompanying drawings. In the drawings:
fig. 1 is a schematic structural view of a heat exchanger according to the present embodiment;
fig. 2 is a sectional view of the heat exchanger of the present embodiment;
fig. 3 is a schematic structural diagram of an external heat exchanger plate set according to the present embodiment;
FIG. 4 is a schematic structural view of a crossflow fan of this embodiment;
fig. 5 is a schematic structural view of the water pan of the present embodiment;
fig. 6 is an exploded view of the indoor unit of the air conditioner according to the present embodiment;
fig. 7 is an assembly view of the air conditioning indoor unit of the present embodiment.
List of reference numerals
1-vertical heat exchange plates; 101-concave surface; 2-external heat exchange fin group; 201-a first refrigerant pipe; 202-front row heat exchange fins; 203-rear row heat exchange fins; 204-upper row of heat exchange fins; 3-a cross flow fan; 301-a main shaft; 302-a reducing section; 303-circumferential space; 304-air holes; 305-a first impeller; 306-a second impeller; 307-a fastening ring; 4-a water pan; 401-drainage end; 5-shell framework.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the heat exchanger, the heat exchange assembly and the air conditioning indoor unit in the embodiment are described in conjunction with the vertical heat exchange plate arranged inside the three-stage heat exchange fin, this is not intended to limit the scope of the present invention, and those skilled in the art may apply the present invention to other application scenarios without departing from the principle of the present invention. For example, in the method for increasing the heat exchange area of the heat exchanger facing the cross-flow fan in this embodiment, another structure including fins or refrigerant pipelines may be disposed on the inner side of the outer heat exchange plate group.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention provides a heat exchanger, a heat exchange assembly and an air conditioner indoor unit, and aims to solve the problems that the space between corners of adjacent heat exchange fins and a cross-flow fan in the existing indoor heat exchanger is large, the space is not effectively utilized, and the refrigerating and heating performances of the air conditioner indoor unit cannot be fully exerted.
As shown in fig. 1 to 7, the heat exchanger provided in this embodiment is used in combination with a cross-flow fan 3, and includes an outer heat exchanger plate group 2 and a vertical heat exchanger plate 1 connected to the inner side of the outer heat exchanger plate group 2; the external heat exchange plate group 2 at least comprises a first section of heat exchange plate and a second section of heat exchange plate; the first section of heat exchange plate and the second section of heat exchange plate are abutted, and both the first section of heat exchange plate and the second section of heat exchange plate extend along the axial direction of the cross flow fan 3 and are arranged outside the cross flow fan 3 in a surrounding manner; a first refrigerant pipe 201 is respectively arranged inside the first section of heat exchange plate and the second section of heat exchange plate, and a first refrigerant inlet and a first refrigerant outlet are arranged at the end part of the first refrigerant pipe 201; at least the adjacent position of the first section of heat exchange plate and the second section of heat exchange plate is provided with a vertical heat exchange plate 1; and the vertical row of heat exchanger plates 1 extends towards the cross flow fan 3.
For example, as shown in fig. 1, fig. 2 and fig. 3, the outer heat exchanger plate group 2 of the present embodiment may be a three-stage heat exchanger plate, which includes a front row of heat exchanger plates 202, a rear row of heat exchanger plates 203 and an upper row of heat exchanger plates 204; the front row of heat exchange fins 202 are positioned in front of or above the cross flow fan 3, the rear row of heat exchange fins 203 are positioned behind or above the cross flow fan 3, and the upper row of heat exchange fins 204 are positioned above or above the side of the cross flow fan 3; the top edge of the front row of fins 202 abuts the front edge of the upper row of fins 204 and the top edge of the rear row of fins 203 abuts the rear edge of the upper row of fins 204. The three-section heat exchange fins are provided with gaps through which air flows pass, and the air flow generated by the cross flow fan 3 can exchange heat with the three-section heat exchange fins when passing through the gaps.
One or more groups of first refrigerant pipes 201 can be respectively arranged in the front row heat exchange plate 202, the rear row heat exchange plate 203 and the upper row heat exchange plate 204 of the three-section type heat exchange plates. The first refrigerant pipe 201 may be connected to a main refrigerant pipe of the air conditioner in series or in parallel. The elbow joint can be used for connecting the first refrigerant inlet end and the first refrigerant outlet end of different first refrigerant pipes 201 to realize series connection; alternatively, the first refrigerant pipe 201 may also be connected to the refrigerant main pipeline through the first refrigerant inlet end and the first refrigerant outlet end to communicate with the outdoor heat exchanger.
The vertical heat exchange plate 1 may be perpendicular to the front row of heat exchange fins 202, the rear row of heat exchange fins 203 and the upper row of heat exchange fins 204, and the vertical heat exchange plate 1 extends towards the cross flow fan 3. So, when vertical row heat transfer board 1 has increased the heat transfer area of heat exchanger, vertical row heat transfer board 1 extends towards cross-flow fan 3 for can not form adverse effect to the heat exchange between outside fin group 2 and the wind current, outside fin group 2 most surface still can carry out the heat exchange with the wind current.
The heat exchanger that this embodiment provided sets up vertical heat transfer board 1 through the inboard of outside heat transfer piece group 2, and the corner that adjoins of at least first section heat transfer board and second section heat transfer board is provided with vertical heat transfer board 1 towards cross-flow fan 3 extension to increase the heat transfer area of heat exchanger. Therefore, the space between the corner of the adjacent heat exchange plate and the cross flow fan 3 is effectively utilized, and the heat exchange effect of the heat exchanger and the heating and refrigerating performance of the indoor unit of the air conditioner are further improved.
As shown in fig. 2, as a preferred embodiment of the above heat exchanger provided as an example, a concave surface 101 is formed at one end of the vertical heat exchange plate 1 facing the cross flow fan 3 to be adapted to the external shape of the cross flow fan 3.
Illustratively, one side of the vertical heat exchange plate 1 facing the cross flow fan 3, and both side surfaces perpendicular to the axis of the cross flow fan 3 exchange heat with the wind flow generated by the cross flow fan 3. In order to make more effective use of the space between the corners of adjacent heat exchange plates and the cross-flow fan 3 and at the same time make the outer surface area of the vertical heat exchange plate 1 larger, the end of the vertical heat exchange plate 1 facing the cross-flow fan 3 may be formed with a concave surface 101 adapted to the shape of the cross-flow fan 3.
As a preferred embodiment of the above heat exchanger provided by way of example, a plurality of vertical heat exchange plates 1 are connected to the inner side of the outer heat exchange plate group 2 along the axial direction of the cross flow fan 3.
Exemplarily, the heat exchange area of the heat exchanger can be increased by arranging one vertical heat exchange plate 1 at the inner side of the outer heat exchange plate group 2, and the effective utilization of the space between the corner of the adjacent heat exchange plate and the cross flow fan 3 is realized. A plurality of vertical heat exchange plates 1 can be arranged on the inner side of the external heat exchange plate group 2 at intervals along the axial direction of the cross flow fan 3, and the heat exchange effect of the heat exchanger and the heating and refrigerating performances of the indoor unit of the air conditioner are further improved by further arranging the plurality of vertical heat exchange plates 1.
As a preferred embodiment of the heat exchanger provided by the embodiment, a second refrigerant pipe (not shown in the figure) is arranged inside the vertical heat exchange plate 1, and the second refrigerant pipe is communicated with the first refrigerant pipe 201; alternatively, the vertical heat exchange plates 1 are fins.
Illustratively, the vertical heat exchange plate 1 may only be a heat dissipation fin connected to the external heat exchange fin group 2, and a second refrigerant pipe may also be disposed inside the vertical heat exchange plate 1, and the second refrigerant pipe is communicated with the first refrigerant pipe 201. To further increase the heat exchange performance of the heat exchanger of the present embodiment.
In addition, as shown in fig. 4 and 6, the present embodiment also provides a heat exchange assembly including the cross flow fan 3 and the heat exchanger as described above.
As can be understood by those skilled in the art, one end of the cross flow fan 3 in the axial direction is connected with a main shaft 301, the main shaft 301 can be connected with a motor, the motor drives the fan to rotate, and the formed wind flow is discharged to the indoor after exchanging heat with the heat exchanger.
As shown in fig. 4, as a preferred embodiment of the heat exchange assembly provided in this embodiment, the cross-flow fan 3 is provided with a radial-contraction section 302 corresponding to the vertical heat exchange plates 1, two ends of the radial-contraction section 302 are respectively connected to a first side surface (not shown in the figure) and a second side surface (not shown in the figure) which are oppositely arranged, the first side surface, the second side surface and the radial-contraction section 302 together enclose an annular space 303, and at least one of the first side surface, the second side surface and the radial-contraction section 302 is provided with an air hole 304 for communicating the cross-flow fan 3 with the annular space 303; and at least part of the vertical heat exchanger plates 1 extends into the annular space 303.
Exemplarily, in the heat exchanger provided in this embodiment, the included angle difference between the vertical heat exchange plate 1 and the external heat exchange plate group 2 and the airflow direction of the cross flow fan is relatively large, the heat exchange surface of the external heat exchange plate group 2 is mostly parallel to the axial direction of the cross flow fan 3, and the heat exchange surface of the vertical heat exchange plate 1 is mostly perpendicular to the axial direction of the cross flow fan 3.
In order to increase the heat exchange effect between the air flow generated by the cross-flow fan 3 and the vertical heat exchange plate 1, the cross-flow fan 3 in the heat exchange assembly of this embodiment is provided with a radial shrinkage section 302 corresponding to the vertical heat exchange plate 1 along the axial direction, and at least one of the first side surface, the second side surface and the radial shrinkage section 302 is provided with an air hole 304 for communicating the cross-flow fan 3 with the annular space 303, and at least a part of the vertical heat exchange plate 1 extends into the annular space 303, so that the heat exchange performance of the vertical heat exchange plate 1 in the heat exchanger is fully utilized.
As shown in fig. 4, as a preferred embodiment of the heat exchange assembly provided in this embodiment, the crossflow fan 3 includes a first impeller 305 and a second impeller 306, the first impeller 305 and the second impeller 306 are coaxially connected with each other at intervals by a connecting shaft, the connecting shaft between the first impeller 305 and the second impeller 306 forms the radial reduction section 302, and the diameters of the connecting shafts are smaller than the diameters of the first impeller 305 and the second impeller 306, respectively; at least one of the first side and the second side is a disk having air holes 304 formed therein.
For example, the cross flow fan 3 may be formed by connecting a first impeller 305 and a second impeller 306 to both ends of a connecting shaft, respectively, two sides of the first impeller 305 and the second impeller 306 facing each other are a first side and a second side, respectively, and the first side and the second side may be disks on which the air holes 304 are disposed. Thus, the cross flow fan 3 may include a plurality of impellers, and adjacent impellers are coaxially connected by a connecting shaft, so that the connection between the impellers is simpler, and the assembly of the whole cross flow fan 3 is more convenient. The connecting shaft and the disc can be connected in an interference fit mode, a bonding mode, a welding mode or a connecting piece mode.
As a preferred embodiment of the above heat exchange assembly provided in this embodiment, at least one of the first side surface and the second side surface is formed by bending the blades of the cross flow fan 3 toward the axis, and the air holes 304 are formed by the gaps between the adjacent blades.
For example, this embodiment provides another cross flow fan 3, and the first side surface or the second side surface of the cross flow fan 3 may be formed by bending the blades of the cross flow fan 3 toward the axis, and the gaps between the adjacent blades form the air holes 304. The cross flow fan 3 uses a small variety of materials, and the first side surface, the second side surface, and the reduced diameter section 302 can be formed by directly bending and extending the blades.
As a preferred embodiment of the heat exchange assembly provided in this embodiment, the reduced diameter section 302 is formed by bending the blades toward the axis and then extending in the axial direction.
For example, the reduced diameter section 302 of the crossflow fan 3 may also be formed by a plurality of blades arranged at intervals around the axis, and the blades of the reduced diameter section 302 may be integrally formed with the blades of the first and second side surfaces; alternatively, the blades of the reduced diameter section 302 may be connected to the blades on the first and second sides by connecting rings. In this way, the reduced diameter section 302 can communicate the inside of the adjacent impeller, and the reduced diameter section 302 can also be provided with air holes 304 facing the annular space 303, so that the ventilation amount inside the annular space 303 is increased, and the heat exchange performance of the heater assembly is improved.
In an alternative embodiment, a plurality of fastening rings 307 may be sleeved on the cross flow fan 3 at intervals along the axial direction, and different blades are fixedly connected with the fastening rings 307, so that the cross flow fan 3 of the present embodiment is connected more firmly. Especially, when the reduced diameter section 302 of the cross flow fan 3 is formed by bending and extending the blades, the fastening ring 307 arranged at the bending position of the blades can well fix the relative position of the blades on the cross flow fan 3, so that the cross flow fan 3 formed by the blades is more reliable.
As an optional implementation manner of the above heat exchange assembly provided in this embodiment, a water receiving tray 4 may be further disposed under the vertical heat exchange plate 1, a second water tank with an opening facing the vertical heat exchange plate 1 is disposed on the water receiving tray 4, a water discharging end 401 is disposed on the second water tank, and the water discharging end 401 extends towards a water tank for discharging water disposed on an inner side of a shell skeleton of the air conditioner, so as to collect and process condensed water formed on the vertical heat exchange plate 1.
Finally, as shown in fig. 6 and 7, the invention also provides an air-conditioning indoor unit, which comprises a shell framework 5, a water pan 4 and the heat exchange assembly; the heat exchanger and the cross-flow fan 3 are both arranged on the inner side of the shell framework 5, a first water tank is arranged on the inner side of the shell framework 5 and below the heat exchanger, and the first water tank is used for receiving condensed water formed on the outer surface of the heat exchanger; the water receiving disc 4 is arranged right below the vertical heat exchange plates 1 and connected with the inner side of the shell framework 5, and a second water tank facing the vertical heat exchange plates 1 is arranged on the water receiving disc 4; the second tank is provided with a drain end 401 extending towards the first tank.
Exemplarily, in the process of refrigerating the indoor unit of the air conditioner, condensed water is formed on the surface of the heat exchanger and needs to be collected to realize centralized processing, so that the normal work of the indoor unit of the air conditioner and the use experience of a user are prevented from being influenced. The inner side of the existing shell framework 5 is provided with a first water tank for collecting condensed water generated by the external heat exchange plate group 2. Aiming at the difference between the positions of the vertical heat exchange plates 1 and the positions of the external heat exchange plate groups 2, the water pan 4 for collecting condensed water generated by the vertical heat exchange plates 1 is specially arranged on the inner side of the shell framework 5, as shown in fig. 5 and 6, the condensed water can flow to the first water tank through the water discharge end 401 of the water pan 4, and the centralized treatment of the condensed water in the indoor unit of the air conditioner is realized.
It can be understood by those skilled in the art that the heat exchanger, the heat exchange assembly and the air conditioner indoor unit in the above embodiments are described by combining the vertical heat exchange plate 1 disposed inside the three-stage heat exchange fin. However, the protection scope of the present invention is not limited to the disclosure of the above embodiments, and those skilled in the art can make various modifications and combinations to the above arrangement modes without departing from the principle of the present invention for increasing the heat exchange area of the heat exchanger and the heat exchange assembly, so that the present invention can be applied to more specific application scenarios.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims of the present invention, any of the claimed embodiments may be used in any combination.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (10)
1. A heat exchanger for use in combination with a crossflow fan, wherein:
the heat exchanger comprises an external heat exchange plate group and a vertical heat exchange plate connected to the inner side of the external heat exchange plate group;
the external heat exchange plate group at least comprises a first section of heat exchange plate and a second section of heat exchange plate; the first section of heat exchange plate and the second section of heat exchange plate are abutted, and both the first section of heat exchange plate and the second section of heat exchange plate extend along the axial direction of the cross-flow fan and are arranged outside the cross-flow fan in an enclosing manner;
a first refrigerant pipe is respectively arranged inside the first section of heat exchange plate and the second section of heat exchange plate, and a first refrigerant inlet and a first refrigerant outlet are arranged at the end part of the first refrigerant pipe;
the vertical heat exchange plates are arranged at the adjacent positions of at least the first section of heat exchange plate and the second section of heat exchange plate; and the vertical heat exchange plates extend towards the cross-flow fan.
2. The heat exchanger of claim 1, wherein:
one end of the vertical heat exchange plate facing the cross-flow fan forms a concave surface to be matched with the shape of the cross-flow fan.
3. The heat exchanger of claim 1, wherein:
the inner side of the external heat exchange plate group is connected with a plurality of vertical heat exchange plates along the axial direction of the cross flow fan.
4. The heat exchanger of claim 1, wherein:
a second refrigerant pipe is arranged inside the vertical heat exchange plate and communicated with the first refrigerant pipe;
or the vertical heat exchange plates are fins.
5. A heat exchange assembly, characterized by:
comprising a cross-flow fan and a heat exchanger according to any of claims 1 to 4.
6. The heat exchange assembly of claim 5, wherein:
the cross-flow fan is provided with a radial shrinkage section corresponding to the vertical heat exchange plates along the axial direction, two ends of the radial shrinkage section are respectively connected with a first side surface and a second side surface which are oppositely arranged, the first side surface, the second side surface and the radial shrinkage section jointly enclose an annular space, and at least one of the first side surface, the second side surface and the radial shrinkage section is provided with an air hole which enables the cross-flow fan to be communicated with the annular space;
and at least part of the vertical heat exchange plates extend into the annular space.
7. The heat exchange assembly of claim 6, wherein:
the cross-flow fan comprises a first impeller and a second impeller, the first impeller and the second impeller are connected at intervals through a connecting shaft, and the connecting shaft between the first impeller and the second impeller forms the diameter reduction section.
8. The heat exchange assembly of claim 6, wherein:
at least one of the first side surface and the second side surface is formed by bending blades of the cross-flow fan towards an axis, and gaps between the adjacent blades form the air holes;
or the reducing section is formed by bending the blade towards the axis and then extending the blade along the axial direction.
9. An air conditioning indoor unit, characterized in that:
comprising a shell skeleton and a heat exchange assembly according to any one of claims 5 to 8;
the heat exchanger and the cross-flow fan are both arranged on the inner side of the shell framework.
10. An indoor unit of an air conditioner according to claim 9, wherein:
the water collector is characterized by further comprising a water receiving tray, a first water tank is arranged on the inner side of the shell framework and below the heat exchanger, and the first water tank is used for receiving condensed water formed on the outer surface of the heat exchanger;
the water pan is arranged right below the vertical heat exchange plates and connected with the inner side of the shell framework, and a second water tank with an opening facing the vertical heat exchange plates is arranged on the water pan; the second tank is provided with a drain end extending toward the first tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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