CN113154535A - Indoor machine of air conditioner - Google Patents
Indoor machine of air conditioner Download PDFInfo
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- CN113154535A CN113154535A CN202010014745.9A CN202010014745A CN113154535A CN 113154535 A CN113154535 A CN 113154535A CN 202010014745 A CN202010014745 A CN 202010014745A CN 113154535 A CN113154535 A CN 113154535A
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- heat exchanger
- indoor unit
- air inlet
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- 238000005192 partition Methods 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 239000000428 dust Substances 0.000 abstract description 6
- 238000007664 blowing Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Classifications
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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
- F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
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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
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
- F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
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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
- F24F1/0022—Centrifugal or radial fans
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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
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
-
- 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
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
The present invention provides an indoor unit of an air conditioner, comprising: the air conditioner comprises a shell, a front plate and a rear plate, wherein the shell is provided with a first air inlet and an air outlet; the heat exchanger is arranged in the shell; and the double-suction centrifugal fan is arranged in the shell and is configured to promote natural air entering the shell from the first air inlet to flow to the heat exchanger and promote heat exchange air subjected to heat exchange of the heat exchanger to be sent out forwards from the air supply outlet. Because the horizontal both ends board of casing is the panel that extends along vertical direction, through set up first air intake on the horizontal both ends board of casing, reduce or avoided air intake department to gather the dust. The double-suction centrifugal fan is used for sucking inlet airflow from the first air inlets positioned on the two sides of the shell and sending the heat exchange airflow to the air supply outlet on the front plate of the shell, so that the indoor unit adopting the 'side air inlet' has good air inlet-outlet effect. The indoor unit is not only suitable for the traditional air conditioner, but also suitable for the intelligent air conditioner.
Description
Technical Field
The invention relates to an air conditioner, in particular to an indoor unit of the air conditioner.
Background
In the prior art, part of air conditioner indoor units, especially wall-mounted air conditioner indoor units, are only provided with top air inlets, however, the air inlets on the top of the indoor units are easy to accumulate dust to affect the air inlet effect because the top of the machine shell is flat. However, if the position of the air inlet is changed, the internal structure of the indoor unit is necessarily required to be adjusted, otherwise, the air inlet-outlet path is likely to be blocked.
Therefore, how to improve the installation position of the air inlet and correspondingly improve the air inlet-outlet path of the indoor unit becomes a technical problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
It is an object of the present invention to provide an air conditioner indoor unit that at least partially solves the above problems.
A further object of the present invention is to improve the installation position of the air inlet, and to provide the indoor unit with a good air inlet-outlet effect, so as to reduce or avoid the occurrence of dust accumulation at the air inlet.
A further object of the present invention is to increase the air intake of the indoor unit.
A further object of the present invention is to improve the heat exchange efficiency of the indoor unit.
A further object of the present invention is to reduce or prevent dripping or condensation from the back panel of the indoor unit.
The present invention provides an indoor unit of an air conditioner, comprising: the air conditioner comprises a shell, a front plate and a rear plate, wherein the shell is provided with a first air inlet and an air outlet; the heat exchanger is arranged in the shell; and the double-suction centrifugal fan is arranged in the shell and is configured to promote natural air entering the shell from the first air inlet to flow to the heat exchanger and promote heat exchange air subjected to heat exchange of the heat exchanger to be sent out forwards from the air supply outlet.
Optionally, the heat exchanger comprises: and the two flat-plate-shaped first heat exchangers are respectively arranged opposite to the first air inlet on one side.
Optionally, the casing is further provided with a plurality of second air inlets located on the circumferential surface of the middle part of the casing; the heat exchanger still includes: and the second heat exchanger is provided with a plurality of sections which are respectively opposite to the plurality of second air inlets.
Optionally, the second air inlet is respectively located on the top plate, the bottom plate and the front plate of the casing; the plurality of sections of the second heat exchanger comprise: the two first sections are respectively arranged at the inner sides of the second air inlets on the top plate and the bottom plate of the shell; the second section is arranged on the inner side of a second air inlet on the front plate of the shell; and the second section is connected between the two first sections.
Optionally, the sizes of the first section and the second section are respectively matched with the size of the corresponding second air inlet, so as to improve the heat exchange efficiency of the second heat exchanger.
Optionally, the number of the double-suction centrifugal fans is two, and the two double-suction centrifugal fans are respectively located on two sides of the second heat exchanger.
Optionally, a rotating shaft of the double-suction centrifugal fan is parallel to the transverse extending direction of the casing, so that a suction end of the double-suction centrifugal fan is opposite to the first air inlet; the double-suction centrifugal fan is also configured to promote the inner side of the second air inlet to generate negative pressure so as to promote the external air to enter the shell from the second air inlet, thereby improving the air inlet volume of the indoor unit
Optionally, the indoor unit further includes: and the mounting frame is arranged in the machine shell and is configured to be fixedly connected with the second heat exchanger.
Optionally, the mounting frame comprises: the partition plate is arranged on the inner side of the back plate of the shell in an abutting mode so as to space the second heat exchanger from the back plate; the connecting piece extends forwards from the two transverse ends of the partition plate to form an installation space of the second heat exchanger by enclosing the partition plate; the connecting piece is provided with a communication port facing the double-suction centrifugal fan.
Optionally, the air outlet end of the double-suction centrifugal fan faces the air supply outlet
The shell of the indoor unit of the air conditioner is provided with a first air inlet positioned on two transverse end plates of the shell and an air supply outlet positioned at the position of the front plate of the shell close to two ends, and the double-suction centrifugal fan is configured to promote natural air entering the shell from the first air inlet to flow to the heat exchanger and promote heat exchange air after heat exchange of the heat exchanger to be sent out from the air supply outlet forwards. Because the horizontal both ends board of casing is the panel that extends along vertical direction, through set up first air intake on the horizontal both ends board of casing, reduce or avoided air intake department to gather the dust. The double-suction centrifugal fan is used for sucking inlet airflow from the first air inlets positioned on the two sides of the shell and sending the heat exchange airflow to the air supply outlet on the front plate of the shell, so that the indoor unit adopting the 'side air inlet' has good air inlet-outlet effect.
Furthermore, the casing of the indoor unit of the air conditioner is also provided with a plurality of second air inlets positioned in the middle of the casing, and the double suction centrifugal fan is also configured to promote the inner sides of the second air inlets to generate negative pressure so as to promote the outside air to enter the casing from the second air inlets. The multiple air inlets are formed in different positions on the shell, and the double-suction centrifugal fan is used for sucking air inlet airflow from the air inlets in different positions, so that the multi-surface air suction function of the indoor unit of the air conditioner is realized, the air inlet volume of the indoor unit is increased, and a structural basis is provided for improving the air supply volume of the indoor unit of the air conditioner.
Furthermore, the heat exchanger of the indoor unit of the air conditioner comprises a second heat exchanger and two first heat exchangers, wherein the two first heat exchangers are respectively arranged opposite to the first air inlet on one side, and the second heat exchanger is provided with a plurality of sections respectively opposite to the plurality of second air inlets, so that a large amount of air entering the shell from the air inlets can almost completely flow through the heat exchangers, and the heat exchange efficiency of the indoor unit is improved.
Furthermore, the second heat exchanger and the back plate are separated by the partition plate, so that direct heat exchange between the second heat exchanger and the back plate can be prevented, the condensation problem caused by the fact that the temperature difference between the back plate and the surrounding external environment is too large can be reduced or avoided, and user experience is improved.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic view of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic view of an indoor unit of an air conditioner according to an embodiment of the present invention, in which the direction of arrows shows the flow direction of air currents.
Fig. 3 is an exploded view of the indoor unit of the air conditioner shown in fig. 2;
fig. 4 is an exploded view of the interior structure of the indoor unit of the air conditioner shown in fig. 2.
Detailed Description
Fig. 1 is a schematic diagram of an air conditioner indoor unit 10 according to one embodiment of the present invention.
The air conditioner indoor unit 10 of the present embodiment may be a wall-mounted air conditioner indoor unit 10, and in some alternative embodiments, the air conditioner indoor unit 10 may also be a floor air conditioner indoor unit 10, but is not limited thereto. The indoor unit 10 and the outdoor unit of the air conditioner complete the refrigeration and heating cycle of the air conditioner through effective cooperation operation, thereby realizing the cold and hot regulation of the indoor temperature.
The air conditioner indoor unit 10 may generally include: the cabinet 100, the heat exchanger, and the double suction centrifugal fan 300 may further include a mounting bracket 400. Wherein, the casing 100 has a receiving and fixing function, and the heat exchanger and the double suction centrifugal fan 300 are disposed inside the casing 100. In some alternative embodiments, the casing 100 may be cylindrical as a whole, or may be configured in any other shape according to actual requirements.
The air conditioner includes a casing 100 having first air intakes 110 at both end plates 150 in a lateral direction of the casing 100 and air delivery ports 130 at positions near both ends of a front plate of the casing 100. The heat exchanger exchanges heat with air flowing therethrough to change the temperature of the air flowing therethrough. The double suction centrifugal fan 300 causes natural air, which has entered the cabinet 100 from the first air inlet 110, to flow toward the heat exchanger, and causes heat-exchanged air, which has been heat-exchanged by the heat exchanger, to be forwardly discharged from the air outlet 130, to be discharged to the working environment of the indoor unit 10.
The position of the air inlet is improved, not only the "moving position" of the air inlet, but also the internal structure of the indoor unit 10 needs to be adaptively adjusted, such as the structure and relative position of the heat exchanger and the fan, otherwise, the position change of the air inlet will reduce the air inlet and outlet effect of the indoor unit 10. In the indoor unit 10 of the air conditioner of the present embodiment, the casing 100 has the first air inlets 110 located on the two transverse end plates 150 of the casing 100 and the air outlets 130 located at the positions close to the two ends of the front plate of the casing 100, and the double suction centrifugal fan 300 is configured to cause the natural air entering the casing 100 from the first air inlets 110 to flow to the heat exchanger and cause the heat exchange air after heat exchange by the heat exchanger to flow forward from the air outlets 130. Since the two transverse end plates 150 of the casing 100 are panels extending in the vertical direction, the first air inlets 110 are formed in the two transverse end plates 150 of the casing 100, so that dust accumulation at the air inlets is reduced or avoided. The double-suction centrifugal fan 300 is used to suck the inlet airflow from the first air inlets 110 located at the two sides of the casing 100, and send the heat exchange airflow to the air supply outlet 130 on the front plate of the casing 100, so that the indoor unit 10 using "side inlet" of the present embodiment has a good air inlet-outlet effect.
In the indoor unit 10 of this embodiment, the air inlet, the air outlet 130 and the internal structure of the casing 100 are reasonably arranged, so that the indoor unit 10 sucks air from two sides of the casing 100 and supplies air to the front side of the casing 100, thereby providing a new air inlet-outlet mode.
In this embodiment, the whole casing 100 may have a rectangular parallelepiped shape having six faces, and includes: two end plates 150, respectively located at both lateral ends of the cabinet 100, and four panels. Four panels, i.e., a top panel, a bottom panel, a front panel, and a back panel, which are respectively located at the top, bottom, front, and back of the cabinet 100.
The first air inlet 110 may be two and is located on one end plate 150 of the lateral direction of the casing 100. That is, the two first air inlets 110 are respectively located at both sides of the cabinet 100. The external air at both sides of the cabinet 100 can enter the cabinet 100 from the first air inlet 110, thereby achieving the side air inlet. Each of the first air inlets 110 may have a rectangular shape or a circular shape. Each of the first intake vents 110 may have the same size, and the centers of the two intake vents may be located on the same horizontal line.
Fig. 2 is a schematic view of an air conditioner indoor unit 10 according to an embodiment of the present invention, in which the direction of arrows shows the flow direction of air flow.
The cabinet 100 further has a plurality of second intake vents 120 formed at a circumferential surface of a central portion of the cabinet 100. The peripheral surface of the middle portion of the casing 100 refers to the portion of the top plate, the bottom plate, the front plate and the back plate of the casing 100 located in the middle of the casing 100 with the lateral extending direction of the casing 100 as the reference. The second air inlets 120 are respectively formed on the top plate, the bottom plate and the front plate of the cabinet 100. That is, the number of the second air inlets 120 may be three, and the three second air inlets are respectively formed on the top plate, the bottom plate and the front plate located in the middle of the casing 100. Each of the second air inlets 120 may be rectangular or circular. The size of each of the second air intakes 120 may be the same, and the distance from the center of each of the second air intakes 120 to both ends of the panel in the transverse direction may be the same.
That is, in the indoor unit 10 of the present embodiment, the casing 100 is provided with a plurality of air inlets, and the plurality of air inlets include the first air inlet 110 and the second air inlet 120. Wherein, two first air inlets 110 are arranged on two transverse end plates 150 of the casing 100; the number of the second air inlets 120 is three, and the second air inlets are respectively disposed on the top plate, the bottom plate and the front plate of the middle portion of the casing 100.
In the present embodiment, the "lateral direction" and the "vertical direction" are relative to the actual usage state of the wall-mounted air conditioner indoor unit 10. In the wall-mounted air conditioner indoor unit 10 in a use state, the cabinet 100 is horizontally disposed at a certain height, wherein "horizontal" refers to a direction perpendicular to a plane of the end plate 150 of the cabinet 100, and is substantially horizontal, and "vertical" refers to a direction perpendicular to a plane of the top plate or the bottom plate of the cabinet 100.
In this embodiment, the air inlet may be configured as a grid structure. The air inlet can be also provided with a filter screen and/or a purification module so as to filter the air flow.
By additionally arranging the air inlets, the air inlets are distributed on the top plate, the bottom plate, the front plate and the end plate 150 of the casing 100, so that the air inlet area of the casing 100 is increased, the air inlet volume of the indoor unit 10 is increased, external air flow can enter the casing 100 from the top plate, the bottom plate, the front plate and the end plate 150 of the casing 100 along different directions, and the indoor unit 10 has a multi-surface air suction function. Compared with the prior art that only one panel is provided with an air inlet and the air is sucked in a single surface, the indoor unit 10 with the multi-surface air suction function in the embodiment has a better air inlet effect.
The air blowing ports 130 may be two, respectively, at positions near both ends of the front plate of the cabinet 100. The air supply outlet 130 may further be provided with a swing blade for adjusting the air supply direction of the supply air flow. Since the arrangement of the swinging blade is well known to those skilled in the art, it will not be described herein.
Fig. 3 is an exploded view of the indoor unit 10 of the air conditioner shown in fig. 2. Fig. 4 is an exploded view of the internal structure of the indoor unit 10 of the air conditioner shown in fig. 2, in which the cabinet 100 is hidden, and the rotating shaft of the double suction centrifugal fan 300 is shown by a dotted line.
The heat exchanger includes: a second heat exchanger 220 and two plate-like first heat exchangers 210.
Two first heat exchangers 210 having a flat plate shape are disposed opposite to the first air inlet 110 on one side, respectively. Each first heat exchanger 210 is disposed opposite to a first air inlet 110. The size of the first heat exchanger 210 can be adapted to the size of the first air inlet 110, so that almost all of the outside air entering the casing 100 from the first air inlet 110 can flow through the first heat exchanger 210 and exchange heat with the first heat exchanger 210, thereby improving the heat exchange efficiency. The arrangement of the first heat exchanger 210 opposite to the first air inlet 110 means that: each first heat exchanger 210 is disposed inside a first air intake 110, and the first heat exchangers 210 may be adjacent to the first air intake 110. Wherein the "inside" is with respect to the actual usage of the wall mounted air conditioner indoor unit 10.
In some optional embodiments, the indoor unit 10 may further include: two heat insulation frames 500 are respectively disposed inside a first air inlet 110 and between the first air inlet 110 and the first heat exchanger 210. Each heat insulation frame 500 is substantially in a shape of a square frame, and a rectangular opening is formed in the heat insulation frame 500, and the shape and size of the opening can be matched with the shape and size of the first air inlet 110. The heat insulation frame 500 may be made of a heat insulation material.
The first heat exchanger 210 is spaced apart from the periphery of the first air inlet 110 by the heat insulation frame 500, so that direct heat exchange between the first heat exchanger 210 and the periphery of the first air inlet 110 can be prevented, and the problem of condensation caused by an excessive temperature difference between the periphery of the first air inlet 110 and the surrounding external environment can be reduced or avoided.
A second heat exchanger 220 having a plurality of sections respectively opposite to the plurality of second air intakes 120. The plurality of sections of the second heat exchanger 220 include: a second section 222 and two first sections 221. The two first sections 221 are respectively disposed inside the second air inlets 120 on the top plate and the bottom plate of the casing 100. The second section 222 is disposed inside the second air inlet 120 on the front plate of the casing 100, and the second section 222 is connected between the two first sections 221.
In this embodiment, the overall shape of the second heat exchanger 220 may be a bent shape, for example, a U shape, and the opening thereof faces the back plate of the casing 100. The first sections 221 may be plate-shaped sections, and two first sections 221 are parallel to the top plate and the bottom plate of the casing 100, respectively, and are disposed adjacent to the corresponding second wind inlets 120. The second section 222 may be an arc-shaped section. A heat exchange cavity is enclosed between the two first sections 221 and the second section 222, and a heat exchange airflow which exchanges heat with the second heat exchanger 220 can flow into the heat exchange cavity and flow from the heat exchange cavity to the air blowing opening 130.
The sizes of the first section 221 and the second section 222 are respectively matched with the size of the corresponding second air inlet 120, so as to improve the heat exchange efficiency of the second heat exchanger 220. The sizes of the first section 221 and the second section 222 may be slightly larger than or equal to the size of the corresponding second air inlet 120, so that almost all the outside air entering the casing 100 from the second air inlet 120 can flow through the second heat exchanger 220 and exchange heat with the second heat exchanger 220, thereby improving the heat exchange efficiency of the second heat exchanger 220.
In the indoor unit 10 of this embodiment, the casing 100 is provided with a plurality of air inlets, and the inner side of each air inlet is correspondingly provided with the heat exchanger, so that not only the air inlet volume of the indoor unit 10 is increased, but also the heat exchange efficiency of the indoor unit 10 is increased, thereby generating a large amount of heat exchange air flow, ensuring the air supply volume of the indoor unit 10, and improving the cooling/heating effect of the indoor unit 10.
And a mounting bracket 400 disposed in the cabinet 100 and configured to be fixedly connected to the second heat exchanger 220. The mounting bracket 400 includes: a spacer 410 and a connector 420.
And a partition 410 disposed against an inner side of a back plate of the cabinet 100 to space the second heat exchanger 220 from the back plate. In the present embodiment, the partition 410 may be disposed corresponding to the second heat exchanger 220 and located at the rear side of the second heat exchanger 220. The material of the partition 410 may be a heat insulating material. The length of the partition 410 in the lateral extension direction of the cabinet 100 may be slightly greater than the length of the second heat exchanger 220 in the lateral extension direction of the cabinet 100.
Utilize baffle 410 to keep apart second heat exchanger 220 and backplate, can obstruct directly carrying out the heat exchange between second heat exchanger 220 and the backplate to can reduce or avoid the backplate because of the condensation problem that leads to with the external environment difference in temperature is too big around, improve user experience.
The connection member 420 is formed by extending forward from both lateral ends of the partition plate 410 to enclose an installation space of the second heat exchanger 220 with the partition plate 410, and the connection member 420 is provided with a communication port 421 facing the double suction centrifugal fan 300. In this embodiment, the connection member 420 may have a block shape. The connection member 420 may be two and may be integrally formed with the partition 410. The connection member 420 and the partition 410 enclose a U-shaped installation space opened toward the front plate of the cabinet 100. The communication port 421 on the connection member 420 can communicate the heat exchange cavity with the space where the double suction centrifugal fan 300 is located, so that the heat exchange airflow in the heat exchange cavity can be sent to the air supply port 130 under the action of the double suction centrifugal fan 300. After the second heat exchanger 220 is disposed in the installation space, the partition 410 may be fixedly connected to the back plate, or the connection member 420 may be fixedly connected to other air duct structures in the casing 100, so as to fixedly install the second heat exchanger 220.
The double suction centrifugal fan 300 may be plural, for example, two, three, or four, and preferably, may be two, and is respectively located at both sides of the second heat exchanger 220, for example, the double suction centrifugal fan 300 may be located at both sides of the second heat exchanger 220 in the transverse extending direction of the cabinet 100, and each double suction centrifugal fan 300 may be respectively located between the first heat exchanger 210 and a second heat exchanger 220. In some alternative embodiments, the double suction centrifugal fan 300 may also be located at both sides of the second heat exchanger 220 in the front-rear extending direction of the cabinet 100.
The rotation axis of the double suction centrifugal fan 300 is parallel to the transverse extending direction of the casing 100, so that the suction end 311 of the double suction centrifugal fan 300 is opposite to the first air inlet 110. The air outlet 321 of the double-suction centrifugal fan 300 faces the air outlet 130. Each double-suction centrifugal fan 300 has two opposite suction ends 311 and an air outlet end 321, wherein one suction end 311 faces an end plate 150 at two lateral ends of the casing 100, and the other suction end 311 faces the other end plate 150 at two lateral ends of the casing 100. The number of the double-suction centrifugal fans 300 can be two, the number of the air outlets 130 can be two, and the air outlet end 321 of each double-suction centrifugal fan 300 faces one air outlet 130. When the double suction centrifugal fan 300 operates, the suction end 311 of the double suction centrifugal fan generates negative pressure, so that the external air enters the casing 100 from the first air inlet 110 and exchanges heat with the heat exchanger flowing through the casing.
The suction ends 311 of the two double-suction centrifugal fans 300 may be arranged in the same direction, so that strong negative pressure can be generated, and the suction effect of the indoor unit 10 is improved.
The double suction centrifugal fan 300 is also configured to induce a negative pressure to the inside of the second intake vent 120 to induce outside air to enter the casing 100 from the second intake vent 120, thereby increasing the intake air rate of the indoor unit 10. Although the suction end 311 of the double suction centrifugal fan 300 is not directly facing the second air inlet 120, the double suction centrifugal fan 300 can generate a large negative pressure inside the second air inlet 120 during operation, thereby promoting the external air to enter the casing 100 through the second air inlet 120. The air conditioner indoor unit 10 of the present embodiment can promote the outside air to enter the casing 100 from a plurality of air inlets, thereby greatly increasing the air inlet volume of the indoor unit 10.
In some alternative embodiments, there may be a plurality of double-suction centrifugal fans 300 and a plurality of air blowing openings 130, and each double-suction centrifugal fan 300 is opposite to one air blowing opening 130. The position of the air supply outlet 130 may be set at any position according to actual needs, for example, it may be selectively set on the bottom plate, the top plate, the front plate, the back plate or the end plate 150 of the cabinet 100. Because each double suction centrifugal fan 300 has two suction ends 311, when it is operated, it can make the interior of the casing 100 produce strong negative pressure, can make the external air enter the casing 100 along a plurality of different directions, and the double suction centrifugal fan 300 can also make the heat-exchanging air flow send to the air supply outlet 130 along the preset direction and discharge to the surrounding environment. Therefore, through carrying out the rational arrangement to the double suction centrifugal fan 300, only need adjust the orientation of air-out end 321 of double suction centrifugal fan 300, utilize the mutual cooperation of the double suction centrifugal fan 300 of specific quantity, specific position and specific orientation, can enough utilize double suction centrifugal fan 300 to realize the multiaspect air inlet, increase the intake, can also realize the multi-angle air supply, and produce the radiant type air supply effect of "all-round no dead angle".
Under the action of the double-suction centrifugal fan 300, the external air can enter the casing 100 along the suction direction of the double-suction centrifugal fan 300, and the heat exchange airflow in the heat exchange cavity can be blown to the air supply outlet 130 along the air outlet direction of the air outlet end 321 of the double-suction centrifugal fan 300. Because the double-suction centrifugal fan 300 can guide the heat exchange airflow, the conveying efficiency of the heat exchange airflow is improved, and the output quantity of the heat exchange airflow is ensured.
In other alternative embodiments, the double-suction centrifugal fans 300 may be selectively activated to operate partially according to actual requirements, so that the double-suction centrifugal fans 300 having the designated positions and the designated orientations are activated to operate, and the blowing positions and blowing directions of the supply air streams can be flexibly adjusted, so that the indoor unit 10 can meet diversified supply requirements.
The double suction centrifugal fan 300 may include a fan body 310 and a volute 320, and the fan body 310 may be disposed within the volute 320.
Under the effect of double suction centrifugal fan 300, the heat exchange air current in the heat exchange cavity can be blown to the air supply outlet 130 via the air outlet end 321 of the double suction centrifugal fan 300, and is sent out forward from the positions close to the two ends of the front plate of the casing 100, so that the indoor unit 10 realizes forward air outlet, compared with the wall-mounted air conditioner indoor unit 10 of "air outlet under upper air inlet" in the prior art, the air supply air current of the indoor unit 10 can be prevented from being sent out downward from the bottom of the casing 100, the human body is directly blown, the air supply comfort of the indoor unit 10 is improved, and the realization of remote air supply is facilitated.
In the indoor unit 10 of the air conditioner of the present embodiment, the casing 100 has the first air inlets 110 located on the two transverse end plates 150 of the casing 100 and the air outlets 130 located at the positions close to the two ends of the front plate of the casing 100, and the double suction centrifugal fan 300 is configured to cause the natural air entering the casing 100 from the first air inlets 110 to flow to the heat exchanger and cause the heat exchange air after heat exchange by the heat exchanger to flow forward from the air outlets 130. Since the two transverse end plates 150 of the casing 100 are panels extending in the vertical direction, the first air inlets 110 are formed in the two transverse end plates 150 of the casing 100, so that dust accumulation at the air inlets is reduced or avoided. The double-suction centrifugal fan 300 is used to suck the inlet airflow from the first air inlets 110 located at the two sides of the casing 100, and send the heat exchange airflow to the air supply outlet 130 on the front plate of the casing 100, so that the indoor unit 10 using "side inlet" of the present embodiment has a good air inlet-outlet effect. The air conditioner indoor unit 10 of the present embodiment is not only applicable to a conventional air conditioner, but also applicable to an intelligent air conditioner.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. An indoor unit of an air conditioner, comprising:
the air conditioner comprises a shell, a front plate and a rear plate, wherein the shell is provided with first air inlets positioned on two transverse end plates of the shell and air supply outlets positioned at two ends of the front plate of the shell;
the heat exchanger is arranged in the shell;
and the double-suction centrifugal fan is arranged in the shell and is configured to promote the natural air entering the shell from the first air inlet to flow to the heat exchanger and promote the heat exchange air subjected to heat exchange through the heat exchanger to be sent out from the air supply outlet forwards.
2. The indoor unit of claim 1, wherein the heat exchanger comprises:
and the two flat-plate-shaped first heat exchangers are respectively arranged opposite to the first air inlet on one side.
3. The indoor unit of claim 2, wherein
The shell is also provided with a plurality of second air inlets positioned on the peripheral surface of the middle part of the shell;
the heat exchanger further comprises:
and the second heat exchanger is provided with a plurality of sections which are respectively opposite to the second air inlets.
4. The indoor unit of claim 3, wherein
The second air inlet is respectively positioned on the top plate, the bottom plate and the front plate of the shell;
the plurality of sections of the second heat exchanger comprise:
the two first sections are respectively arranged at the inner sides of the second air inlets on the top plate and the bottom plate of the shell;
the second section is arranged on the inner side of the second air inlet on the front plate of the shell; and the second section is connected between two of the first sections.
5. The indoor unit of claim 4, wherein
The sizes of the first section and the second section are respectively matched with the size of the corresponding second air inlet so as to improve the heat exchange efficiency of the second heat exchanger.
6. The indoor unit of claim 3, wherein
And the two double-suction centrifugal fans are respectively positioned on two sides of the second heat exchanger.
7. The indoor unit of claim 3, wherein
A rotating shaft of the double-suction centrifugal fan is parallel to the transverse extending direction of the shell, so that the air suction end of the double-suction centrifugal fan is opposite to the first air inlet;
the double-suction centrifugal fan is also configured to promote the inner side of the second air inlet to generate negative pressure so as to promote external air to enter the shell from the second air inlet, thereby improving the air inlet volume of the indoor unit.
8. The indoor unit of claim 3, further comprising:
and the mounting frame is arranged in the shell and is configured to be fixedly connected with the second heat exchanger.
9. The indoor unit of claim 8, wherein the mounting frame comprises:
the partition plate is arranged on the inner side of the back plate of the shell in an abutting mode so as to space the second heat exchanger from the back plate;
the connecting piece extends forwards from the two transverse ends of the partition plate to form an installation space of the second heat exchanger by enclosing the partition plate; and a communication port facing the double-suction centrifugal fan is formed in the connecting piece.
10. The indoor unit of claim 1, wherein
And the air outlet end of the double-suction centrifugal fan faces the air supply outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010014745.9A CN113154535A (en) | 2020-01-07 | 2020-01-07 | Indoor machine of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010014745.9A CN113154535A (en) | 2020-01-07 | 2020-01-07 | Indoor machine of air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN113154535A true CN113154535A (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010014745.9A Pending CN113154535A (en) | 2020-01-07 | 2020-01-07 | Indoor machine of air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024066598A1 (en) * | 2022-09-30 | 2024-04-04 | 青岛海尔空调器有限总公司 | Indoor unit and air conditioner |
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| KR20080061636A (en) * | 2006-12-28 | 2008-07-03 | 엘지전자 주식회사 | Air conditioner |
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Application publication date: 20210723 |
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