CN110887117B - Indoor unit of cabinet air conditioner - Google Patents
Indoor unit of cabinet air conditioner Download PDFInfo
- Publication number
- CN110887117B CN110887117B CN201811045015.4A CN201811045015A CN110887117B CN 110887117 B CN110887117 B CN 110887117B CN 201811045015 A CN201811045015 A CN 201811045015A CN 110887117 B CN110887117 B CN 110887117B
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- Prior art keywords
- air
- heat exchanger
- annular
- air outlet
- heat exchange
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- 239000003570 air Substances 0.000 claims abstract description 465
- 239000012080 ambient air Substances 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 210000001503 joint Anatomy 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 description 14
- 230000000694 effects Effects 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000005465 channeling Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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
- F24F1/0011—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
- F24F1/0059—Indoor units, e.g. fan coil units characterised by 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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
-
- 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
Abstract
The invention provides an indoor unit of a cabinet air conditioner. The cabinet air conditioner indoor unit comprises a shell, an upper air supply fan, an upper air guide member, a lower air supply fan, a lower air guide member and an indoor heat exchanger. The shell is provided with a mixing air outlet, a heat exchange air outlet, a natural air inlet and a heat exchange air inlet. The upper air supply fan is configured to draw in ambient air from the ambient environment of the heat exchange air intake and to cause it to flow toward the mixing air outlet via the upper air guide member. The upper air guide member is formed with at least one annular air outlet extending around the front-rear direction, and the annular air outlet is configured to blow air flow forward so as to promote the ambient air around the natural air inlet to flow forward and mix with the heat exchange air blown out by the annular air outlet. The lower air supply fan is configured to draw in ambient air from the ambient environment of the heat exchange air inlet and to cause it to flow towards the heat exchange air outlet via the lower air guiding member, wherein the air outlet of the lower air guiding member is arranged to directly interface with the heat exchange air outlet.
Description
Technical Field
The invention relates to the field of air conditioning, in particular to an indoor unit of a cabinet air conditioner.
Background
At present, the heat exchange air in the shell is directly blown to the indoor environment by the traditional cabinet air conditioner indoor unit through an air supply fan (a cross flow fan, an axial flow fan or a centrifugal fan and the like), so that the air supply distance is short, the air supply amount is small, the temperature difference between the middle part of the air outlet and the periphery is large, and the user experience is poor. In view of the comprehensive consideration, there is a need in design for a cabinet air conditioner indoor unit with a long air supply distance, a large air supply amount and a uniform temperature of the blown air flow.
Disclosure of Invention
An object of the present invention is to provide a cabinet air conditioner indoor unit having a uniform temperature of an air flow.
A further object of the present invention is to increase the air supply distance and the air supply quantity of the indoor unit of the cabinet air conditioner.
It is a further object of the present invention to reduce the amount of radial play of the air flow blown out by the annular air outlet.
In particular, the present invention provides a cabinet air conditioner indoor unit comprising:
the shell is provided with a mixed air outlet, a heat exchange air outlet, a natural air inlet and a heat exchange air inlet, wherein the mixed air outlet and the heat exchange air outlet are arranged on a front panel of the shell, and the natural air inlet is arranged on a back panel of the shell and corresponds to the mixed air outlet;
an upper air supply fan and a lower air supply fan configured to suck ambient air from the surrounding environment of the heat exchange air inlet and to cause the air to flow toward the mixing air outlet and the heat exchange air outlet, respectively;
the indoor heat exchanger is arranged on an air inlet flow path between the heat exchange air inlet and the upper air supply fan and the lower air supply fan;
an upper air guiding member configured to guide the air flow blown out by the upper air supplying fan to the mixing air outlet, wherein the upper air guiding member is formed with at least one annular air outlet extending around the front-rear direction, and the annular air outlet is configured to blow the air flow forward so as to promote the ambient air around the natural air inlet to flow forward and mix with the heat exchange air blown out by the annular air outlet; and
a lower air guiding member configured to guide the air flow blown out by the lower air supplying fan to the heat exchanging air outlet, and an air outlet of the lower air guiding member is arranged to be directly in butt joint with the heat exchanging air outlet; wherein the indoor heat exchanger comprises:
the upper heat exchanger is arranged on an air inlet flow path between the heat exchange air inlet and the upper air supply fan; and
the lower heat exchanger is arranged in parallel with the upper heat exchanger and is arranged on an air inlet flow path between the heat exchange air inlet and the lower air supply fan.
Optionally, the upper air guiding component comprises a front air guiding part and a rear air guiding part with air flow channels independent from each other; and is also provided with
The front side air guide part and the rear side air guide part are respectively provided with the annular air outlets, so that air flow blown out by the front side annular air outlets is guided to promote air flow blown out by the rear side annular air outlets to flow forwards.
Optionally, the rear wall of the airflow channel of the front air guiding part is the front wall of the airflow channel of the rear air guiding part, so that the airflow flow rules in the front air guiding part and the rear air guiding part are consistent, and the production cost is reduced.
Optionally, the ratio of the air outlet area to the air inlet area of the front air guiding part is smaller than the ratio of the air outlet area to the air inlet area of the rear air guiding part; and/or
The area of the air inlet of the front air guide part is smaller than that of the air inlet of the rear air guide part.
Optionally, the upper air supply fan and the lower air supply fan are centrifugal fans, and the air inlets of the fans are all arranged on the rear wall of the volute; and is also provided with
The heat exchange air inlet is formed in two lateral side walls of the shell, and the upper heat exchanger and the lower heat exchanger both comprise parallel sections extending along the lateral direction, so that the heat exchange area of the heat exchanger and the ambient air is increased.
Optionally, the upper heat exchanger and the lower heat exchanger further comprise:
the two vertical sections are respectively arranged to extend from the two transverse ends of the corresponding parallel section to be perpendicular to the parallel section so as to further increase the heat exchange area of the heat exchanger and the ambient air.
Optionally, the two vertical sections are arranged to extend forward from the lateral ends of the respective parallel sections to increase the spacing between the fan inlet and the heat exchanger.
Optionally, the cabinet air conditioner indoor unit further includes:
the water receiving disc is provided with a concave cavity with an upward opening, is arranged below the lower heat exchanger, and is used for supporting the lower heat exchanger and receiving condensed water flowing down from the upper heat exchanger and the lower heat exchanger; wherein the method comprises the steps of
The bottom wall of the concave cavity is provided with a plurality of supporting bulges extending upwards, and the lower heat exchanger is arranged on the supporting bulges so as to prevent the bottom of the lower heat exchanger from being immersed in condensed water.
Optionally, the indoor unit of the cabinet air conditioner further includes:
the wind shield is arranged above the upper heat exchanger and is clamped with the water receiving disc to form a heat exchange air inlet channel.
Optionally, the upper air supply fan is configured to operate when the indoor heat exchanger receives a refrigeration instruction; and is also provided with
The lower air supply fan is configured to work when the indoor heat exchanger receives a heating instruction.
The cabinet air conditioner indoor unit can respectively supply air to areas with different heights by arranging the upper air supply fan and the lower air supply fan, and has high flexibility; the invention also respectively arranges a heat exchanger on the air inlet flow paths of the upper air supply fan and the lower air supply fan, which can work when the corresponding air supply fans work, thereby reducing unnecessary cold energy/heat loss.
Furthermore, the invention sucks the ambient air around the natural air inlet to the front side of the annular air outlet to mix with the heat exchange air by arranging the annular air outlet which extends around the front and back directions and blows the air flow forwards, thereby forming hot, cool and uncooled comfortable air and improving the air supply quantity.
Furthermore, the front annular air outlet is utilized to guide and promote the airflow blown out by the rear annular air outlet to flow forwards, so that the integral air supply distance and the air supply quantity are increased.
Furthermore, the rear wall of the airflow channel of the front air guide part is used as the front wall of the airflow channel of the rear air guide part, so that the production cost is reduced, the airflow flow change rules in the front air guide part and the rear air guide part are consistent, the quantity of the airflow blown out by the two annular air outlets and moving towards the radial direction due to mutual interference is reduced, and the integral air outlet effect of the cabinet air conditioner indoor unit is enhanced.
Furthermore, the heat exchange air inlets are particularly formed in the two lateral side walls of the shell, so that the heat exchange area of unit ambient air and the indoor heat exchanger is increased, and the heat exchange is more sufficient.
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
fig. 1 is a schematic side view of a cabinet air conditioner indoor unit according to one embodiment of the invention;
fig. 2 is a schematic cross-sectional view of the indoor unit of the cabinet air conditioner shown in fig. 1;
FIG. 3 is a schematic exploded view of the indoor unit of the cabinet air conditioner shown in FIG. 1;
FIG. 4 is a schematic cross-sectional view of an air guiding member according to one embodiment of the invention;
FIG. 5 is a schematic cross-sectional view of an air guiding member according to another embodiment of the invention;
fig. 6 is a schematic cross-sectional view of an air guiding member according to yet another embodiment of the invention.
Detailed Description
Fig. 1 is a schematic side view of a cabinet air-conditioning indoor unit 100 according to one embodiment of the invention; fig. 2 is a schematic cross-sectional view of the cabinet air-conditioner indoor unit 100 shown in fig. 1; fig. 3 is a schematic exploded view of the indoor unit 100 of the cabinet air conditioner shown in fig. 1. The cabinet air conditioner indoor unit 100 may include a cabinet, an upper air supply fan 120, an upper air guide member 130, and an indoor heat exchanger.
The cabinet may include a rear case 111 having a forward opening, and a front panel 112 disposed at the forward opening of the rear case 111. The rear shell 111 may be provided with a natural air inlet 1112 and a heat exchange air inlet 1111. The front panel 112 may be provided with a mixing air outlet 1122. The indoor heat exchanger may be disposed on the air intake flow path between the heat exchange air intake 1111 and the upper air supply fan 120.
The upper blower 120 may be configured to draw ambient air from the ambient environment of the heat exchange intake 1111 and cause it to flow toward the mixing outlet 1122 via the upper air guiding member 130. The upper air blower 120 may be a centrifugal blower, an axial flow blower, a cross flow blower, or the like.
The upper air guide member 130 may be formed with at least one annular air outlet, and the annular air outlet may be configured to extend around an imaginary axis extending in the front-rear direction and configured to blow forward air flow so as to promote the ambient air around the natural air inlet 1112 to flow forward to mix with the heat exchange air blown out from the annular air outlet, thereby forming hot, cool and uncooled comfortable air and increasing the air quantity of the cabinet air-conditioning indoor unit 100. The natural air inlet 1112 may be disposed at a position of the back plate of the back shell 111 corresponding to the mixed air outlet 1122.
Fig. 4 is a schematic cross-sectional view of an upper air guide member 130 according to an embodiment of the present invention. Referring to fig. 4, the upper air guiding member 130 may include a front air guiding portion and a rear air guiding portion with air flow channels independent of each other, and the front air guiding portion and the rear air guiding portion are respectively provided with an annular air outlet, so that the air flow blown out from the front annular air outlet guides the air flow blown out from the rear annular air outlet to flow forward, and the overall air supply distance and the air supply volume are increased.
According to simulation experiments, under the condition that other conditions are the same, compared with an air guide member with only one annular air outlet, the air guide member with the front annular air outlet and the rear annular air outlet not only remarkably improves the air supply distance, but also improves the air supply quantity by at least 20%, wherein the total area of the air outlets of the air guide members with the two annular air outlets is equal to the area of the air outlets of the air guide member with only one annular air outlet.
The front annular air outlet 131 or the rear annular air outlet 132 may have a circular shape, a rectangular shape, an elliptical shape, or the like, projected on an imaginary plane perpendicular to the imaginary axis. The projection shapes of the annular air outlet 131 and the annular air outlet 132 on the imaginary plane may be the same or different.
The airflow passages of the front and rear air guides may include annular segments 131a and 132a, respectively, extending around an imaginary axis. The annular air outlet 131 and the annular air outlet 132 may be formed inside the annular section 131a and the annular section 132a, respectively, i.e., toward one side of the imaginary axis.
The inner peripheral wall, the outer peripheral wall, and the forward and rearward side walls connecting the inner and outer peripheral walls of the annular segment may be provided as a rounded transition to avoid eddy currents at the corners. The inner peripheral wall of the annular segment 132a may be configured to gradually expand from back to front to reduce wind resistance, so as to facilitate the ambient gas to flow forward through the natural wind inlet 1112 and mix with the heat exchange gas.
The airflow channels of the front and rear air guiding portions may further include an air inlet section 131b and an air inlet section 132b for interfacing with the air outlets of the upper air blower 120, respectively, and the air inlet section 131b and the air inlet section 132b may be respectively disposed to communicate with the annular section 131a and the annular section 132a, so as to extend the air inlet path from the upper air blower 120 to the annular section, so that the airflow velocity in the annular section is more uniform.
The rear wall of the airflow channel of the front air guiding part can be used as the front wall of the airflow channel of the rear air guiding part, so that the production cost can be reduced, the airflow direction entering the annular section 131a from the air inlet section 131b is consistent with the airflow direction entering the annular section 132a from the air inlet section 132b, the airflow change rule in the annular section 131a and the annular section 132a is consistent, the movement quantity of the airflow blown out by the annular air outlet 131 and the annular air outlet 132 in the radial direction due to mutual interference is reduced, and the integral air outlet effect of the upper air guiding member 130 is enhanced. Wherein the rearward sidewall of the annular segment 131a may be configured to arch rearward to channel the heat exchange gas within the annular segment 132a forward.
The ratio of the area of the annular air outlet 131 to the air inlet area of the air inlet section 131b may be smaller than the ratio of the area of the annular air outlet 132 to the air inlet area of the air inlet section 132b, so that the flow velocity of the air flow blown out from the annular air outlet 131 is greater than the flow velocity of the air flow blown out from the annular air outlet 132, thereby improving the guiding effect of the air flow blown out from the annular air outlet 131 on the air flow blown out from the annular air outlet 132, and improving the air supply distance of the upper air guide member 130.
The air inlet area of the air inlet section 131b may be smaller than the air inlet area of the air inlet section 132b, so that the air supply amount of the front air guiding portion is smaller than the air supply amount of the rear air guiding portion, and the upper air guiding member 130 has a larger air supply amount while having a longer air supply distance. The area of the annular air outlet 132 can be increased as much as possible to reduce wind resistance and make the flow of air smoother.
The annular air outlet 131 and the annular air outlet 132 may be respectively and uniformly provided with a plurality of guide vanes 134 extending along the axial direction and the radial direction of the imaginary axis, so as to reduce the channeling amount of the air flow blown out by the annular air outlet 131 and the annular air outlet 132 in the radial direction, and further make the air flow blown out by the annular air outlet 131 and the annular air outlet 132 more uniform.
Referring to fig. 4, in some embodiments, the annular air outlet 131 may be formed by sandwiching the forward side wall and the inner peripheral wall of the annular segment 131 a. The annular air outlet 132 may be formed by sandwiching a forward side wall and an inner peripheral wall of the annular section 132a.
The forward side wall of the annular segment 131a may be configured such that a tangential plane at any point of the inner end edge thereof extends in the front-rear direction, so that the air flow blown out from the annular air outlet 131 flows in the front-rear direction, thereby improving the guiding effect of the air flow blown out from the annular air outlet 131 on the air flow blown out from the annular air outlet 132.
The inner peripheral wall of the annular segment 131a may be used to guide the airflow blown out by the annular air outlet 132 to flow forward.
The inner peripheral wall of the annular segment 131a may be provided such that a tangential plane at any point of the front end thereof extends in the front-rear direction to cause the air flow blown out by the annular air outlet 132 to flow in the front-rear direction, thereby improving the guiding effect of the air flow blown out by the annular air outlet 131 on the air flow blown out by the annular air outlet 132.
The inner peripheral wall of the annular segment 131a may be disposed outside the inner end edge of the forward sidewall thereof, so that the distance between the annular air outlet 132 and the imaginary axis is as large as possible, thereby improving the air volume of the ambient air mixed with the heat exchange gas.
The upper air guiding member 130 may further include a guiding extension 133 that diverges from the front end edge of the annular air outlet 131, i.e., the guiding extension 133 gradually increases from the rear to the front from the imaginary axis, so as to increase the air supply area of the upper air guiding member 130.
The guide extension 133 may be disposed in smooth transition with the airflow channel of the front air guide to improve the smoothness of the airflow.
The guide extension 133 may be disposed to extend along a curve with an increasing angle with respect to the imaginary axis to further increase the supply area of the upper air guide member 130.
Fig. 5 is a schematic cross-sectional view of an air guiding member according to another embodiment of the invention. Referring to fig. 5, in other embodiments, the annular air outlet 131 may be formed by sandwiching the rearward sidewall and the inner peripheral wall of the annular section 131a thereof. The annular air outlet 132 may be formed by sandwiching the forward side wall and the inner peripheral wall of the annular section 132a thereof.
The rear end of the inner peripheral wall of the annular segment 131a may be disposed at the rear side of the front end edge of the rear-facing sidewall thereof to adjust the flow direction of the heat exchange gas in the annular segment 131a, thereby avoiding the gas from being blown out from the air outlet in disorder.
The inner peripheral wall of the annular segment 131a may be provided to be gradually expanded from rear to front, i.e., the distance from the imaginary axis to the inner peripheral wall gradually increases from rear to front to increase the air supply area of the upper air guide member 130.
The inner circumferential wall of the annular segment 131a may be disposed to extend along a curve with an angle with respect to the imaginary axis gradually increasing to further increase the air supply area of the upper air guide member 130.
Fig. 6 is a schematic cross-sectional view of an air guiding member according to yet another embodiment of the invention. Referring to fig. 6, in still other embodiments, the annular air outlets 131 and 132 may be configured to gradually increase in width from a portion close to the air inlet section to a portion far from the air inlet section, so that the wind resistance of the portion of the annular section far from the air inlet section is smaller than that of the portion close to the air inlet section, and the air volume around the annular air outlet is more uniform. The minimum width of the annular air outlet may be 1/3 to 1/2, for example 1/3, 2/5 or 1/2, of the maximum width.
In the embodiment of fig. 4 to 6, the rear side edge of the annular air outlet 131 and the rear side edge of the annular air outlet 132 may be disposed outside the front side edge of the annular air outlet 131, i.e. when viewed from front to back, the annular air outlet 131 and the annular air outlet 132 may be blocked by the front side wall of the annular section 131a, so as to enhance the dust-proof effect of the upper air guiding member 130 and improve the aesthetic appearance of the indoor unit 100 of the cabinet air conditioner.
In other embodiments, the rear side edge of the annular air outlet 131 and the rear side edge of the annular air outlet 132 may be disposed inside the front side edge of the annular air outlet 131, that is, the annular air outlet 131 and the annular air outlet 132 may be directly observed from front to back, so that the air flows blown out from the annular air outlet 131 and the annular air outlet 132 flow forward more smoothly.
In the present invention, the upper blower fan 120 may include a scroll case 121 formed with an installation opening, a centrifugal impeller 122 disposed in the scroll case 121, a driving motor 124 driving the centrifugal impeller 122 to rotate, a motor bracket 125 for fixing the driving motor 124, and a cover plate disposed at the installation opening of the scroll case 121 and fixedly connected with the motor bracket 125.
In some embodiments, the front panel 112 may further be provided with a heat exchange air outlet 1123, and the heat exchange air outlet 1123 is located below the mixing air outlet 1122. The cabinet air-conditioning indoor unit 100 may also include a lower air supply fan 140 and a lower air guide member 150. The lower air supply blower 140 is configured to draw ambient air from the ambient environment of the heat exchange air intake 1111 and cause it to flow via the lower air guiding member 150 towards the heat exchange air outlet 1123, wherein the air outlet of the lower air guiding member 150 is arranged to directly interface with the heat exchange air outlet 1123.
The lower blower 140 may include a scroll case 141 formed with a mounting opening, a centrifugal impeller 142 disposed in the scroll case 141, a driving motor 144 driving the centrifugal impeller 142 to rotate, a motor bracket 145 for fixing the driving motor 144, and a cover plate disposed at the mounting opening of the scroll case 141 and fixedly connected with the motor bracket 145. The fan inlet of the lower air supply fan 140 may be opened at the rear wall of the volute 141.
The upper air blower 120 may be configured to operate when the indoor heat exchanger receives a cooling command, and the lower air blower 140 may be configured to operate when the indoor heat exchanger receives a heating command, so as to make use of the characteristics of sinking cold air and floating hot air, and to make the indoor temperature fast and uniform while saving energy consumption. The upper and lower blower fans 120, 140 may also be configured to operate simultaneously.
In some embodiments, the indoor heat exchanger may include an upper heat exchanger 161 and a lower heat exchanger 162 disposed in parallel. The upper heat exchanger 161 may be disposed on an air intake path between the heat exchange air inlet 1111 and the upper air blower 120, and the lower heat exchanger 162 may be disposed on an air intake path between the heat exchange air inlet 1111 and the lower air blower 140. The upper heat exchanger 161 and the lower heat exchanger 162 may be configured to operate when the corresponding blower fan is operated, avoiding unnecessary loss of cold/heat.
The cabinet air conditioner indoor unit 100 may further include a water pan 170 disposed below the lower heat exchanger 162. The water pan 170 is formed with a concave cavity opened upward for supporting the lower heat exchanger 162 and receiving condensed water flowing down from the upper and lower heat exchangers 161, 162. The bottom wall of the cavity may be formed with a plurality of upwardly extending support protrusions, and the lower heat exchanger 162 may be disposed on the plurality of support protrusions to prevent the bottom of the lower heat exchanger 162 from being immersed in the condensed water.
The cabinet air conditioner indoor unit 100 may further include a wind deflector 180 disposed above the upper heat exchanger 161. The wind guard 180 is disposed to form a heat exchanging air inlet channel with the water pan 170.
A water guide member may be disposed between the upper heat exchanger 161 and the lower heat exchanger 162 to receive condensed water flowing down from the upper heat exchanger 161 and guide the condensed water to the water pan 170, so as to prevent the lower heat exchanger 162 from being in a humid environment even in a non-operating state.
In particular, the blower inlets of the upper blower fan 120 and the lower blower fan 140 may be opened at the rear walls of the scroll case 121 and the scroll case 141, respectively. The heat exchanging air inlet 1111 may be opened at two lateral side walls of the rear case 111. The upper heat exchanger 161 and the lower heat exchanger 162 may each include parallel sections extending in a lateral direction to increase a heat exchange area of the unit ambient air with the heat exchanger so that heat exchange is more sufficient.
The upper heat exchanger 161 and the lower heat exchanger 162 may further include two vertical sections extending perpendicular to the parallel sections from both lateral ends of the parallel sections thereof to further increase the heat exchange area per unit of ambient air with the heat exchanger. The two vertical sections can be arranged to extend forwards from the two transverse ends of the parallel section, so that the distance between the air inlet of the fan and the parallel section is increased and the air inlet resistance is reduced under the condition that the gravity center of the air supply fan is not changed.
The air blower 120, the air blower 140, the upper air guiding member 130, the lower air guiding member 150, the upper heat exchanger 161, the lower heat exchanger 162, the water pan 170 and the wind deflector 180 may be fixedly connected to the casing through sheet metal parts.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.
Claims (9)
1. An indoor unit of a cabinet air conditioner, comprising:
the shell is provided with a mixed air outlet, a heat exchange air outlet, a natural air inlet and a heat exchange air inlet, wherein the mixed air outlet and the heat exchange air outlet are arranged on a front panel of the shell, and the natural air inlet is arranged on a back panel of the shell and corresponds to the mixed air outlet;
an upper air supply fan and a lower air supply fan configured to suck ambient air from the surrounding environment of the heat exchange air inlet and to cause the air to flow toward the mixing air outlet and the heat exchange air outlet, respectively;
the indoor heat exchanger is arranged on an air inlet flow path between the heat exchange air inlet and the upper air supply fan and the lower air supply fan;
an upper air guiding member configured to guide the air flow blown out by the upper air supplying fan to the mixing air outlet, wherein the upper air guiding member is formed with at least one annular air outlet extending around the front-rear direction, and the annular air outlet is configured to blow the air flow forward so as to promote the ambient air around the natural air inlet to flow forward and mix with the heat exchange air blown out by the annular air outlet; and
a lower air guiding member configured to guide the air flow blown out by the lower air supplying fan to the heat exchanging air outlet, and an air outlet of the lower air guiding member is arranged to be directly in butt joint with the heat exchanging air outlet;
the upper air guide component comprises a front air guide part and a rear air guide part, wherein the air flow channels of the front air guide part and the rear air guide part are mutually independent;
the airflow channel of the front air guiding part comprises an annular section extending around an axis, the airflow channel of the rear air guiding part also comprises an annular section extending around the axis, the annular air outlet of the front air guiding part is formed on one side of the annular section facing the axis, and the annular air outlet of the rear air guiding part is also formed on one side of the annular section facing the axis;
the air flow channel of the front air guide part comprises an air inlet section for being in butt joint with a fan air outlet of the upper air supply fan, the air flow channel of the rear air guide part also comprises an air inlet section for being in butt joint with a fan air outlet of the upper air supply fan, and the air inlet section is used for prolonging an air inlet path from the upper air supply fan to the annular section so that the air flow velocity in the annular section is more uniform; and is also provided with
The front side air guide part and the rear side air guide part are respectively provided with the annular air outlets so that air flow blown out by the front side annular air outlets is guided to promote air flow blown out by the rear side annular air outlets to flow forwards;
wherein the indoor heat exchanger comprises:
the upper heat exchanger is arranged on an air inlet flow path between the heat exchange air inlet and the upper air supply fan; and
the lower heat exchanger is arranged in parallel with the upper heat exchanger and is arranged on an air inlet flow path between the heat exchange air inlet and the lower air supply fan;
the annular air outlet is arranged to gradually increase in width from a part close to the air inlet section to a part far away from the air inlet section.
2. The cabinet air conditioner indoor unit of claim 1, wherein
The rear wall of the airflow channel of the front air guide part is the front wall of the airflow channel of the rear air guide part, so that the airflow flowing rules in the front air guide part and the rear air guide part are consistent, and the production cost is reduced.
3. The cabinet air conditioner indoor unit of claim 1, wherein
The ratio of the air outlet area to the air inlet area of the front air guide part is smaller than the ratio of the air outlet area to the air inlet area of the rear air guide part; and/or
The area of the air inlet of the front air guide part is smaller than that of the air inlet of the rear air guide part.
4. The cabinet air conditioner indoor unit of claim 1, wherein
The upper air supply fan and the lower air supply fan are centrifugal fans, and the air inlets of the fans are formed in the rear wall of the volute; and is also provided with
The heat exchange air inlet is formed in two lateral side walls of the shell, and the upper heat exchanger and the lower heat exchanger both comprise parallel sections extending along the lateral direction, so that the heat exchange area of the heat exchanger and the ambient air is increased.
5. The cabinet air conditioner indoor unit of claim 4, wherein the upper and lower heat exchangers further comprise:
the two vertical sections are respectively arranged to extend from the two transverse ends of the corresponding parallel section to be perpendicular to the parallel section so as to further increase the heat exchange area of the heat exchanger and the ambient air.
6. The indoor unit of claim 5, wherein
The two vertical sections extend forwards from the two transverse ends of the corresponding parallel sections so as to increase the distance between the air inlet of the fan and the heat exchanger.
7. The cabinet air conditioner indoor unit of claim 1, further comprising:
the water receiving disc is provided with a concave cavity with an upward opening, is arranged below the lower heat exchanger, and is used for supporting the lower heat exchanger and receiving condensed water flowing down from the upper heat exchanger and the lower heat exchanger; wherein the method comprises the steps of
The bottom wall of the concave cavity is provided with a plurality of supporting bulges extending upwards, and the lower heat exchanger is arranged on the supporting bulges so as to prevent the bottom of the lower heat exchanger from being immersed in condensed water.
8. The cabinet air conditioner indoor unit of claim 7, further comprising:
the wind shield is arranged above the upper heat exchanger and is clamped with the water receiving disc to form a heat exchange air inlet channel.
9. The cabinet air conditioner indoor unit of claim 1, wherein
The upper air supply fan is configured to work when the indoor heat exchanger receives a refrigeration instruction; and is also provided with
The lower air supply fan is configured to work when the indoor heat exchanger receives a heating instruction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811045015.4A CN110887117B (en) | 2018-09-07 | 2018-09-07 | Indoor unit of cabinet air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811045015.4A CN110887117B (en) | 2018-09-07 | 2018-09-07 | Indoor unit of cabinet air conditioner |
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| CN110887117A CN110887117A (en) | 2020-03-17 |
| CN110887117B true CN110887117B (en) | 2023-12-22 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110887117A (en) | 2020-03-17 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20231024 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 Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |
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