CN108709250B - Cabinet air conditioner indoor unit - Google Patents
Cabinet air conditioner indoor unit Download PDFInfo
- Publication number
- CN108709250B CN108709250B CN201810759358.0A CN201810759358A CN108709250B CN 108709250 B CN108709250 B CN 108709250B CN 201810759358 A CN201810759358 A CN 201810759358A CN 108709250 B CN108709250 B CN 108709250B
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- 238000005485 electric heating Methods 0.000 claims abstract description 24
- 239000003507 refrigerant Substances 0.000 claims abstract description 9
- 239000003570 air Substances 0.000 claims description 290
- 238000004378 air conditioning Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 230000000087 stabilizing effect Effects 0.000 claims description 11
- 239000012080 ambient air Substances 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 6
- 238000009792 diffusion process Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- 238000003780 insertion Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
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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
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
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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
-
- 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
-
- 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
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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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
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1863—Arrangement or mounting of electric heating means
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
Landscapes
- 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)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a cabinet type air conditioner indoor unit. The cabinet air-conditioner indoor unit comprises a casing, at least one air supply assembly, an indoor heat exchanger and at least one group of electric heating pipes, wherein the casing is provided with a casing air inlet and at least one casing air outlet, the air supply assembly is arranged in the casing and is provided with a centrifugal fan, the indoor heat exchanger is arranged on an air inlet path between the casing air inlet and the air supply assembly, and the at least one group of electric heating pipes are arranged on the air inlet path. The indoor heat exchanger comprises a refrigerant heat exchange tube and a fin group which extends in the vertical direction and is provided with a plurality of inserting tube holes, and the refrigerant heat exchange tube is fixedly connected with the fin group by penetrating through part of the inserting tube holes. At least one group of electric heating pipes is arranged to penetrate through the other part of the inserting pipe hole to be fixedly connected with the fin group. The invention utilizes the original jack hole of the indoor heat exchanger to install the electric heating pipe, not only occupies no extra space, but also has larger air inlet area and smaller wind resistance, thereby improving the air inlet quantity of the air supply assembly.
Description
Technical Field
The invention relates to the field of air treatment, in particular to a cabinet air conditioner indoor unit.
Background
The air conditioner heats only through the compressor refrigerating system, and the general problem that heating efficiency is not high and the expected heating effect of a user cannot be achieved exists. In the prior art, in order to overcome the problems, the surface of the indoor heat exchanger is covered with the electric heater to assist in heating the ambient air entering the casing, but the method not only occupies more internal space of the casing, and causes the wind resistance to be increased due to too close distance between the indoor heat exchanger or the electric heater and the fan, but also causes heat waste because the heat generated by the electric heater cannot directly enter the fan. In view of the above, there is a need for a cabinet type air conditioner indoor unit with high heating efficiency, no extra space occupation, and high utilization rate of heat generated by an electric heater.
Disclosure of Invention
One object of the present invention is to provide a cabinet air-conditioning indoor unit with high heating efficiency.
A further object of the present invention is to improve the utilization of the heat generated by an electric heating tube.
Another further object of the present invention is to make the flow rate of the air flow blown out by the cabinet air-conditioning indoor unit more uniform.
In particular, the present invention provides a cabinet air-conditioning indoor unit comprising:
the shell is provided with a shell air inlet and at least one shell air outlet;
at least one air supply assembly having a centrifugal fan disposed within the housing, the centrifugal fan including a volute and an impeller disposed within the volute and configured to draw in ambient air from an environment surrounding the housing air inlet and to urge the air toward one of the housing air outlets; and
the indoor heat exchanger is arranged on an air inlet path between the air inlet of the shell and the at least one air supply assembly, and comprises a refrigerant heat exchange tube and a fin group which extends in the vertical direction and is provided with a plurality of inserting tube holes, and the refrigerant heat exchange tube is arranged to penetrate through part of the inserting tube holes and is fixedly connected with the fin group; it is characterized in that the cabinet air-conditioner indoor unit further comprises:
and the at least one group of electric heating pipes are arranged to penetrate through the other part of the plug-in pipe holes to be fixedly connected with the fin group.
Optionally, the plurality of cannula holes are evenly distributed in one or more columns.
Optionally, the at least one group of electric heating pipes are respectively disposed at a position closest to a fan air inlet of a centrifugal fan of the at least one air supply assembly.
Optionally, the volute comprises two volute side walls which jointly define a volute air duct and a volute circumferential wall which connects the two volute side walls, wherein each volute side wall is provided with a fan air inlet; the volute circumferential wall comprises a volute section gradually expanding relative to the outer contour of the impeller, and a volute tongue section and an outlet section respectively extending from two ends of the volute section, and a fan air outlet of the centrifugal fan is formed between the volute tongue section and the outlet section,
the air inlet of the shell is formed in one side, facing the volute tongue section, of the outlet section; and is
The indoor heat exchanger is arranged between the air inlet of the shell and the volute tongue section.
Optionally, each of the air supply assemblies further comprises:
the air guide component is limited with a guide air duct extending from the fan air outlet to the direction away from the impeller and used for guiding and conveying the airflow blown out from the fan air outlet to the indoor environment through the machine shell air outlet; wherein
The outlet section of the centrifugal fan is positioned at the front side of the volute tongue section of the centrifugal fan; and is
The preceding lateral wall in water conservancy diversion wind channel sets up to extend along preceding convex curve and back convex curve group respectively with the lateral wall to the back, two horizontal lateral walls in water conservancy diversion wind channel set up to extend along vertical direction, wherein preceding convex curve and back convex curve are the convex curve backward.
Optionally, the at least one air supply assembly comprises a first air supply assembly and a second air supply assembly arranged below the first air supply assembly; and is
The at least one machine shell air outlet comprises a top air outlet and a lower air outlet, and the first air supply assembly and the second air supply assembly are configured to promote air to flow to an indoor environment through the top air outlet and the lower air outlet respectively; wherein
The air outlet section and the volute tongue section of the centrifugal fan of the first air supply assembly are respectively arranged to extend upwards from two ends of the volute section; and the air outlet section and the volute tongue section of the centrifugal fan of the second air supply assembly are respectively arranged to extend downwards from two ends of the volute section.
Optionally, the air guide duct of the first air supply assembly is arranged to extend from the air outlet of the fan to the upper part in a gradually expanding manner.
Optionally, the air guide member of the first air supply assembly includes:
the bottom wall and the top wall of the shell are respectively provided with an air inlet opening and an air outlet opening;
the lower part of the air duct is communicated with a fan air outlet and the air inlet opening of the corresponding centrifugal fan;
the upper part of the air duct is communicated with the air duct and is fixed in the shell, and an air inlet of the air duct is butted with the air inlet opening; and
the air outlet frame is arranged to cover the air outlet of the upper part communicated with the air channel in the air channel and is configured to move between an open position and a closed position in a controlled manner; wherein
When the air outlet frame is located at the opening position, the lower communicating air duct, the upper communicating air duct and the air outlet frame are communicated to form the flow guide air duct, and the air outlet of the air outlet frame is exposed at the upper side of the air outlet opening; when the air outlet frame is located at the closed position, the air outlet frame is completely located in the shell.
Optionally, the air guide duct of the second air supply assembly includes:
the diffusion section is arranged to extend downwards from each circumferential edge of the air outlet of the fan in a gradually expanding manner;
the steady flow section is arranged to extend downwards from the extending tail end of the diffusion section in a gradually-reducing mode; and
and the flow guide section is arranged to extend downwards from the rear side of the flow stabilizing section and extend forwards in a curve manner, and the extending tail end of the flow guide section is positioned at the front side of the vertical plane where the front side of the flow stabilizing section extends.
Optionally, the cabinet air conditioner indoor unit further includes:
the water receiving tray is provided with a concave cavity with an upward opening and is arranged below the indoor heat exchanger;
the upper wind shield is arranged above the water receiving tray;
the circumferential wind shield is arranged to form an air inlet channel of the at least one air supply assembly together with the water receiving tray and the upper wind shield; wherein
The indoor heat exchanger is arranged in the air inlet channel, and the projection of the air inlet of the shell on a vertical plane is completely positioned in the outline of the indoor heat exchanger.
The invention utilizes the original jack hole of the indoor heat exchanger to install the electric heating pipe, not only occupies no extra space, but also has larger air inlet area and smaller wind resistance, thereby improving the air inlet quantity of the air supply assembly.
Furthermore, the electric heating pipe is arranged at the position closest to the air inlet of the fan, and the heat generated by the electric heating pipe can directly enter the volute of the centrifugal fan, so that the heat is effectively utilized, and the heating efficiency of the cabinet air conditioner indoor unit is improved.
Furthermore, the guide air duct of the air supply assembly is designed to extend gradually relative to the outer contour of the impeller in the same direction as the extension direction of the volute air duct and then extend gradually relative to the outer contour of the impeller in the opposite direction, so that the flow stroke of air in the guide air duct is prolonged, the air blown out from the centrifugal fan is fully mixed in the guide air duct, the air flows smoothly, the noise is lower, the flow velocity difference of the air flow blown out from the center and the edge of the air outlet of the guide air duct is smaller, and better user experience is achieved.
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 to scale. In the drawings:
figure 1 is a schematic cross-sectional view of a cabinet air-conditioning indoor unit according to one embodiment of the present invention;
figure 2 is a schematic exploded view of the cabinet air conditioning indoor unit shown in figure 1;
FIG. 3 is a schematic exploded view of the heat exchanger assembly of FIG. 2;
FIG. 4 is a schematic exploded view of the preassembly shown in FIG. 2;
fig. 5 is a schematic sectional view of the air outlet frame of the air guide member shown in fig. 1 in an open position, in which the lower communication duct is removed;
fig. 6 is a schematic sectional view of the air outlet frame of the air guide member shown in fig. 1 in a closed position, in which the lower communication duct is removed.
Detailed Description
Fig. 1 is a schematic cross-sectional view of a cabinet air conditioning indoor unit 100 according to one embodiment of the present invention; fig. 2 is a schematic exploded view of the cabinet air-conditioning indoor unit 100 shown in fig. 1. Referring to fig. 1 and 2, the cabinet air conditioner indoor unit 100 may include a casing 110 having a casing air inlet 1121 and at least one casing air outlet, at least one air supply assembly having a centrifugal fan and disposed in the casing 110, and an indoor heat exchanger disposed on an air inlet path between the casing air inlet 1121 and the at least one air supply assembly. The housing 110 may be defined by a front panel 111, a back panel 112, two lateral side panels 113, and a base 114. The centrifugal fan includes a volute and an impeller disposed within the volute, and the impeller is configured to draw ambient air from an environment surrounding the housing air inlet 1121 and urge the air toward a housing air outlet. The indoor heat exchanger includes a refrigerant heat exchange tube 142 and a fin group 141. The fin set 141 includes a plurality of fins extending in a vertical direction and disposed at intervals, and a plurality of tube inserting holes penetrating the plurality of fins in a thickness direction are formed in the fin set, and the refrigerant heat exchanging tube 142 is disposed to penetrate a part of the tube inserting holes and is fixedly connected to the plurality of fins. In the present invention, at least one is one, two, or more than three. The plurality is two, three or more.
In particular, the cabinet air-conditioning indoor unit 100 may further include at least one set of electric heating pipes 143 for auxiliary heating of the ambient air. Fig. 3 is a schematic exploded view of the heat exchanger assembly 140 of fig. 2 (the heat exchanger assembly 140 is composed of an indoor heat exchanger and an electric heating pipe 143). Referring to fig. 3, each group of the electric heating pipes 143 may include a plurality of horizontally extending electric heating pipes 143. The electric heating tube 143 may be disposed to pass through another portion of the tube insertion hole and fixedly coupled to the plurality of fins. The invention utilizes the original plug-in pipe hole of the indoor heat exchanger to install the electric heating pipe 143, not only occupies no extra space, but also has larger air inlet area and smaller wind resistance, thereby improving the air inlet volume of the air supply assembly.
In some embodiments, the plurality of jack holes may be uniformly distributed in one or more rows to reduce the space occupied by the heat exchanger assembly 140 and to allow ambient air to uniformly exchange heat with the refrigerant heat exchanging pipes 142 and the electric heating pipes 143. In the illustrated embodiment, the plurality of tube-insertion holes are divided into two rows, and the tube-insertion holes in each row are arranged at equal intervals. In some preferred embodiments, at least one set of electric heating pipes 143 may be respectively disposed at a position closest to a fan inlet of a centrifugal fan of at least one air supply assembly, that is, a set of electric heating pipes 143 is corresponding to the centrifugal fan of each air supply assembly, and the electric heating pipes 143 are disposed at a position closest to the corresponding fan inlet, so that heat generated by the electric heating pipes 143 may directly enter a volute of the centrifugal fan, so that the heat is effectively utilized, and the heating efficiency of the cabinet air-conditioning indoor unit 100 is further improved.
The cabinet air-conditioning indoor unit 100 may further include a water collector 160 having an upwardly open cavity and disposed below the indoor heat exchanger, an upper air baffle 161 disposed above the water collector 160, and a circumferential air baffle. The water pan 160, the upper wind shield 161 and the circumferential wind shields together form an air inlet channel of at least one air supply assembly, and the heat exchanger assembly 140 is arranged in the air inlet channel. The projection of the casing air inlet 1121 on the vertical plane may be completely located within the profile of the indoor heat exchanger, so that the ambient air sucked from the casing air inlet 1121 exchanges heat with the indoor heat exchanger completely.
As is well known to those skilled in the art, a volute includes two volute sidewalls that together define a volute air path and a volute perimeter wall that connects the two volute sidewalls. The volute circumferential wall comprises a volute section gradually expanding relative to the outer contour of the impeller, and a volute tongue section and an outlet section which respectively extend from two ends of the volute section, and a fan air outlet of the centrifugal fan is formed between the volute tongue section and the outlet section.
Referring to fig. 1, in some preferred embodiments, the casing air inlet 1121 is preferably opened at a side of the volute tongue section of the centrifugal fan away from the outlet section, and the indoor heat exchanger may be disposed between the casing air inlet 1121 and the volute tongue section of the centrifugal fan, so as to increase a distance between the indoor heat exchanger and the fan air inlet while not changing a position of a rotation axis of an impeller of the centrifugal fan, thereby increasing a rate of an air flow flowing through the indoor heat exchanger.
Each air supply assembly may further comprise an air guide member for guiding and conveying the air flow blown out by the centrifugal fan to the indoor environment. The air guide member defines a guide air duct extending from the fan air outlet in a direction away from the impeller, and is configured to guide the airflow blown out from the fan air outlet forward. In particular, the outlet section of the centrifugal fan is located on the front side of its volute tongue section. The preceding lateral wall in water conservancy diversion wind channel sets up to extend along convex preceding convex curve and convex back convex curve group backward respectively with the lateral wall after setting up to, and two horizontal lateral walls set up to extend along vertical direction to the air current velocity of flow difference at the center of the air outlet in noise abatement and wind-guiding wind channel and edge. In some preferred embodiments, the centrifugal fan preferably adopts a double-suction centrifugal fan, that is, one fan air inlet is formed in each of the two volute sidewalls, so as to increase the air volume of the air supply assembly.
Before the present invention, it was thought by those skilled in the art that the centrifugal fan applies work to the gas through the impeller to rotate the gas and move the gas outward under the action of centrifugal force, and therefore the flow guide duct communicating with the volute duct of the centrifugal fan can make the gas flow more smoothly in the duct only by extending gradually in the same direction as the extension direction of the volute duct and relative to the outer contour of the impeller, and reduce the noise caused by the collision of the gas flow with the inner wall of the duct. However, the inventor of the present application has conducted a great deal of adjustment on the shape and size of the guiding air duct, and creatively found that designing the guiding air duct to extend gradually from the outer contour of the impeller in the same direction as the extension direction of the volute air duct and then extend gradually from the outer contour of the impeller in the opposite direction can extend the flow path of the air in the guiding air duct, so that the air blown out from the centrifugal fan can be sufficiently mixed in the guiding air duct, and the air can flow smoothly, which not only has lower noise, but also has a smaller difference in flow velocity between the air flow blown out from the center and the edge of the air outlet of the guiding air duct, and has better user experience.
In some embodiments, the at least one air supply assembly may include a first air supply assembly 120 and a second air supply assembly 130 disposed below the first air supply assembly 120. The outlet of the cabinet includes a top outlet 1111 and a lower outlet 1111, and the first blower assembly 120 and the second blower assembly 130 are configured to facilitate air flowing to the indoor environment through the top outlet 1111 and the lower outlet 1111, respectively. Specifically, the first air supply assembly 120 includes a centrifugal fan 121 and an air guide member 200, and an air outlet section and a volute tongue section of the centrifugal fan 121 are disposed to extend upward from both ends of the volute section thereof, respectively. The second air supply assembly 130 includes a centrifugal fan 131 and an air guide member 132, and an air outlet section and a volute section of the centrifugal fan 131 are respectively arranged to extend downwards from two ends of the volute section.
Fig. 5 is a schematic cross-sectional view of the air outlet frame 220 of the air guide member 200 shown in fig. 1 in an open position, in which the lower communication duct 240 is removed; fig. 6 is a schematic cross-sectional view of the air outlet frame 220 of the air guide member 200 shown in fig. 1 in a closed position, in which the lower communication duct 240 is removed. Referring to fig. 5 and 6, in some preferred embodiments of the present invention, the air guide member 200 of the first air supply assembly 120 may include a housing 210, a lower communication duct 240, and an upper communication duct 230 and an air outlet frame 220 fixed in the housing 210. Specifically, the casing 210 is fixed in the casing 110, and the bottom wall and the top wall thereof may be respectively provided with an air inlet 2111 and an air outlet 2112. The lower communication duct 240 may be configured to communicate with a fan outlet and an air inlet 2111 of the centrifugal fan 121. The air inlet of the upper communication duct 230 may be configured to interface with the air inlet opening 2111 to receive the air flow outside the housing 210. The air-out frame 220 may be configured to cover the air outlet of the upper communicating air duct 230 in the air duct, and is configured to controllably rotate around a pivot fixed at the rear portion of the housing 210 between an open position and a closed position via the air outlet at the top of the housing 110, wherein when the air-out frame 220 is located at the open position, the lower communicating air duct 240, the upper communicating air duct 230, and the air-out frame 220 are communicated to form a guiding air duct, and the air outlet of the air-out frame 220 is exposed at the upper side of the air-out opening 2112 to deliver the air flow blown out from the air outlet of the fan to the indoor environment; when the air-out frame 220 is located at the closed position, the air-out frame 220 is completely located in the casing 210, so as to lower the center of gravity of the cabinet air-conditioning indoor unit 100 and prevent dust from falling. The wind guide member 200 may further include a top cover 242 fixedly connected to the wind outlet frame 220. The top cover 242 is configured to close the air outlet 2112 of the housing 210 when the air outlet frame 220 is located at the closed position, so as to prevent dust from falling into the housing 210. The guide air duct of the first air supply assembly 120 may be configured to extend from the fan air outlet of the centrifugal fan 121 toward a direction away from the impeller, so as to increase the static pressure of the air flowing through the guide air duct, thereby increasing the flow rate of the air.
Referring to fig. 1, the guide duct of the second air supply assembly 130 may include a diffuser section, a stabilizer section, and a guide section. The diffuser section may be configured to extend gradually from each circumferential edge of the fan air outlet of the centrifugal fan 131 to increase the static pressure of the air flow flowing through the diffuser section, so that the air flows more smoothly. The steady flow section can be arranged to extend from the extending tail end of the diffusion section in a gradually-reducing mode so as to improve the flow speed of airflow flowing through the steady flow section, enable the airflow blown out from the diffusion section to be mixed in the steady flow section and improve the uniformity of the wind speed of the airflow blown out from the steady flow section. The flow guide section can be arranged to extend from the extending tail end of the flow stabilizing section to the direction away from the impeller and extend towards the front curve, so that the airflow from the flow stabilizing section is led out forwards. Further preferably, the flow guide section may extend from the rear side of the flow stabilizing section to the front side of the vertical plane where the front side of the flow stabilizing section extends, so that a part of the airflow from the flow stabilizing section is reflected by the flow guide section to flow in a direction close to the impeller, and is mixed with another part of the airflow from the flow stabilizing section at the front side of the vertical plane where the front side of the flow stabilizing section extends, thereby increasing the air outlet angle of the second air supply assembly 130, forming uniform airflow without a "bunchy" feeling, and improving user experience. The air guide duct of the second air supply assembly 130 may be partially extended to the outside of the casing 110 through the lower air outlet 1111, so that the air flow blown from the centrifugal fan 131 moves to the indoor environment more smoothly and is mixed at the outside of the casing 110.
Fig. 4 is a schematic exploded view of the preassembly 180 shown in fig. 2. Referring to fig. 2 and 4, the circumferential wind deflectors may include two lateral wind deflectors 162 disposed at both lateral sides of the indoor heat exchanger, respectively, and a front wind deflector 163 disposed between the first and second air blowing assemblies 120 and 130. The cabinet air-conditioning indoor unit 100 may further include a plurality of horizontal structure supports 151 extending in a horizontal direction and a plurality of vertical structure supports 152 extending in a vertical direction, and the plurality of horizontal structure supports 151 may be configured to be fixedly connected to the first air supply assembly 120, the second air supply assembly 130, the upper air deflector 161, the front air deflector 163, and the water collector 160, respectively, and fixedly connected to the cabinet 110 through the plurality of vertical structure supports 152. In order to facilitate the installation and positioning of the components, the cabinet air-conditioning indoor unit 100 may further include a plurality of vertical sheet metal parts 153 extending in the vertical direction, and the first air supply assembly 120 and the second air supply assembly 130 may be fixedly connected through the vertical sheet metal parts 153, and then the water pan 160, the upper air baffle 161, the two horizontal air baffles 162, the front air baffle 163, and the like may be fixedly connected to the first air supply assembly 120 and/or the second air supply assembly 130. The preassembly member 180 may be composed of a first air supply assembly 120, a second air supply assembly 130, an upper wind shield 161, two lateral wind shields 162, a front wind shield 163, a water collector 160, a vertical sheet metal part 153, and a plurality of lateral structural supports 151. An electrical box 170 for controlling the operating states of the first air blowing assembly 120, the second air blowing assembly 130 and the heat exchanger assembly 140 and supplying power to the first air blowing assembly 120, the second air blowing assembly 130 and the electric heating pipe 143 may be fixed on the base 114 and disposed at the rear side of the air guide member 132.
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 (8)
1. A cabinet air conditioning indoor unit, comprising:
the shell is provided with a shell air inlet and at least one shell air outlet;
at least one air supply assembly having a centrifugal fan disposed within the housing, the centrifugal fan including a volute and an impeller disposed within the volute and configured to draw in ambient air from an environment surrounding the housing air inlet and to urge the air toward one of the housing air outlets;
the indoor heat exchanger is arranged on an air inlet path between the air inlet of the shell and the at least one air supply assembly, and comprises a refrigerant heat exchange tube and a fin group which extends in the vertical direction and is provided with a plurality of inserting tube holes, and the refrigerant heat exchange tube is arranged to penetrate through part of the inserting tube holes and is fixedly connected with the fin group; and
the water receiving tray is provided with a concave cavity with an upward opening and is arranged below the indoor heat exchanger; it is characterized in that the cabinet air-conditioner indoor unit further comprises:
at least one group of electric heating pipes which are arranged to penetrate through the other part of the plug-in pipe holes and are fixedly connected with the fin groups; wherein,
the volute comprises two volute side walls and a volute circumferential wall, the two volute side walls define a volute air duct together, the volute circumferential wall is connected with the two volute side walls, and each volute side wall is provided with a fan air inlet; the volute circumferential wall comprises a volute section gradually expanding relative to the outer contour of the impeller, and a volute tongue section and an outlet section which respectively extend from two ends of the volute section, and a fan air outlet of the centrifugal fan is formed between the volute tongue section and the outlet section;
the shell air inlet is formed in one side, facing the volute tongue section, of the outlet section;
the indoor heat exchanger is arranged between the air inlet of the shell and the volute tongue section; and each air supply assembly further comprises:
the air guide component is limited with a guide air duct extending from the fan air outlet to the direction away from the impeller and used for guiding and conveying the airflow blown out from the fan air outlet to the indoor environment through the machine shell air outlet; wherein,
the outlet section of the centrifugal fan is positioned at the front side of the volute tongue section of the centrifugal fan; and is provided with
The preceding lateral wall in water conservancy diversion wind channel sets up to extend along preceding convex curve and back convex curve group respectively with the lateral wall to the back, two horizontal lateral walls in water conservancy diversion wind channel set up to extend along vertical direction, wherein preceding convex curve and back convex curve are the convex curve backward.
2. The cabinet air-conditioning indoor unit of claim 1,
the plurality of the insert holes are uniformly distributed in one or more rows.
3. The cabinet air-conditioning indoor unit according to claim 1 or 2,
the at least one group of electric heating pipes are respectively arranged at the position which is closest to the fan air inlet of the centrifugal fan of the at least one air supply assembly.
4. The cabinet air-conditioning indoor unit of claim 1,
the at least one air supply assembly comprises a first air supply assembly and a second air supply assembly arranged below the first air supply assembly; and is
The at least one cabinet outlet comprises a top outlet and a lower outlet, and the first air supply assembly and the second air supply assembly are configured to promote air to flow to the indoor environment through the top outlet and the lower outlet respectively; wherein
The air outlet section and the volute tongue section of the centrifugal fan of the first air supply assembly are respectively arranged to extend upwards from two ends of the volute section; and the air outlet section and the volute tongue section of the centrifugal fan of the second air supply assembly are respectively arranged to extend downwards from two ends of the volute section.
5. The cabinet air-conditioning indoor unit according to claim 4, wherein,
the diversion air duct of the first air supply assembly is arranged to extend upwards from the air outlet of the fan in a gradually expanding manner.
6. The cabinet air-conditioning indoor unit of claim 4, wherein the air guide member of the first air supply assembly comprises:
the bottom wall and the top wall of the shell are respectively provided with an air inlet opening and an air outlet opening;
the lower part of the air duct is communicated with a fan air outlet and the air inlet opening of the corresponding centrifugal fan;
the upper part of the air duct is communicated with the air duct and is fixed in the shell, and an air inlet of the air duct is butted with the air inlet opening; and
the air outlet frame is arranged to cover the air outlet of the upper part communicated with the air channel in the air channel and is configured to move between an open position and a closed position in a controlled manner; wherein
When the air outlet frame is located at the opening position, the lower communicating air duct, the upper communicating air duct and the air outlet frame are communicated to form the flow guide air duct, and an air outlet of the air outlet frame is exposed at the upper side of the air outlet opening; when the air outlet frame is located at the closed position, the air outlet frame is completely located in the shell.
7. The cabinet air-conditioner indoor unit of claim 4, wherein the guide duct of the second blowing assembly comprises:
the diffusion section is arranged to extend downwards from each circumferential edge of the air outlet of the fan in a gradually expanding manner;
the steady flow section is arranged to extend downwards from the extending tail end of the diffusion section in a gradually-reducing mode; and
and the flow guide section is arranged to extend downwards and forwards in a curve manner from the rear side extension tail end of the flow stabilizing section, and the extension tail end of the flow guide section is positioned at the front side of a vertical plane where the front side extension tail end of the flow stabilizing section is positioned.
8. The cabinet air-conditioning indoor unit of claim 1, further comprising:
the upper wind shield is arranged above the water receiving tray;
the circumferential wind shield is arranged to form an air inlet channel of the at least one air supply assembly together with the water receiving tray and the upper wind shield; wherein
The indoor heat exchanger is arranged in the air inlet channel, and the projection of the air inlet of the shell on a vertical plane is completely positioned in the outline of the indoor heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810759358.0A CN108709250B (en) | 2018-07-11 | 2018-07-11 | Cabinet air conditioner indoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810759358.0A CN108709250B (en) | 2018-07-11 | 2018-07-11 | Cabinet air conditioner indoor unit |
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| Publication Number | Publication Date |
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| CN108709250A CN108709250A (en) | 2018-10-26 |
| CN108709250B true CN108709250B (en) | 2023-04-18 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442352A (en) * | 2019-01-17 | 2020-07-24 | 青岛海尔空调器有限总公司 | Indoor machine of floor air conditioner |
| CN111442359A (en) * | 2019-01-17 | 2020-07-24 | 青岛海尔空调器有限总公司 | Indoor machine of floor air conditioner |
| CN111442360A (en) * | 2019-01-17 | 2020-07-24 | 青岛海尔空调器有限总公司 | Indoor machine of floor air conditioner |
| CN109812873B (en) * | 2019-01-31 | 2020-11-27 | 青岛海尔空调器有限总公司 | Cabinet type air conditioner indoor unit |
| CN110207267A (en) * | 2019-07-01 | 2019-09-06 | 珠海格力电器股份有限公司 | Fan coil and air conditioner with same |
| CN114811921A (en) * | 2022-03-18 | 2022-07-29 | 青岛海尔空调电子有限公司 | Air conditioner indoor unit and air conditioner |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4549053B2 (en) * | 2003-11-28 | 2010-09-22 | シャープ株式会社 | Air conditioner |
| US20070267172A1 (en) * | 2006-05-16 | 2007-11-22 | Foxconn Technology Co., Ltd. | Heat dissipation apparatus |
| JP4872997B2 (en) * | 2008-02-28 | 2012-02-08 | ダイキン工業株式会社 | Blower and air conditioner equipped with the blower |
| CN204421194U (en) * | 2014-12-31 | 2015-06-24 | 广东美的制冷设备有限公司 | Indoor apparatus of air conditioner and air-conditioning |
| CN105423510A (en) * | 2015-12-01 | 2016-03-23 | 珠海格力电器股份有限公司 | Air duct assembly and air conditioner with same |
| CN206222479U (en) * | 2016-09-30 | 2017-06-06 | 美的集团武汉制冷设备有限公司 | Upright type wall-hung indoor apparatus of air conditioner and air-conditioner |
| CN108224568A (en) * | 2018-02-06 | 2018-06-29 | 青岛海尔空调器有限总公司 | Air-supply assembly and the cabinet type air conditioner indoor set with the air-supply assembly |
| CN208536395U (en) * | 2018-07-11 | 2019-02-22 | 青岛海尔空调器有限总公司 | Cabinet type air conditioner indoor set |
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| CN108709250A (en) | 2018-10-26 |
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Effective date of registration: 20230406 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |