CN114076353A - Wall-mounted air conditioner indoor unit - Google Patents
Wall-mounted air conditioner indoor unit Download PDFInfo
- Publication number
- CN114076353A CN114076353A CN202010838031.XA CN202010838031A CN114076353A CN 114076353 A CN114076353 A CN 114076353A CN 202010838031 A CN202010838031 A CN 202010838031A CN 114076353 A CN114076353 A CN 114076353A
- Authority
- CN
- China
- Prior art keywords
- air
- jet
- fan
- air duct
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
-
- 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
- F24F13/02—Ducting arrangements
- F24F13/04—Air-mixing units
-
- 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
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
The invention relates to a wall-mounted air conditioner indoor unit, comprising: the heat exchanger comprises a shell, a heat exchanger and a fan, wherein the shell is provided with a heat exchange airflow outlet which extends along the transverse direction of the shell, and the interior of the shell is provided with the heat exchanger and the fan so as to enable heat exchange airflow in the shell to be sent out through the heat exchange airflow outlet by the fan; the jet air duct is provided with a jet air outlet extending along the transverse direction of the shell, and the jet air duct and the shell are arranged at intervals so as to form a drainage air duct between the heat exchange air flow outlet and the jet air outlet; and the jet fan is communicated with the jet air duct to controllably drive the air outside the wall-mounted air conditioner indoor unit to flow to the jet air duct and send the air out through the jet air outlet, so that the natural air which flows out through the jet air outlet and is not subjected to heat exchange is mixed with the natural air which flows out through the drainage air duct and is not subjected to heat exchange and the heat exchange air flow sent out through the heat exchange air flow outlet, and the integral air guiding quantity and the integral air supply quantity of the wall-mounted air conditioner indoor unit are improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a wall-mounted air conditioner indoor unit.
Background
With the popularization of air conditioners, users have higher and higher requirements on the comfort and the health of air supply. For the traditional wall-mounted air conditioner indoor unit, the air volume and the noise are two contradictory parameters, so the maximum air volume is limited within a certain range. Moreover, the temperature of cold air blown out by the air conditioner is low, and the cold air is directly blown to people, so that discomfort can be caused, and the user experience is influenced.
Therefore, some existing wall-mounted air-conditioning indoor units are designed with air supply schemes of jet flow and drainage, an air induction module is additionally arranged on the rear side outside a casing of the existing wall-mounted air-conditioning indoor unit, an induced draft fan is arranged in the air induction module, indoor air is driven to flow to a jet flow channel located below the casing through the induced draft fan after passing through a purification assembly, a connecting pipe and a plurality of air ports, an induced draft port is arranged at the bottom of the jet flow channel, when the induced draft fan operates, part of the indoor air flows into the jet flow channel through the bottom induced draft port under the action of negative pressure, and two streams of the indoor air flowing to the jet flow channel are sent out through an air outlet of the jet flow channel and mixed with heat exchange air flow sent out by the wall-mounted air-conditioning indoor unit, so that the air induction amount is improved to a certain extent. However, the air inducing port is arranged at the bottom of the jet flow channel, and the air quantity introduced from the air inducing port only depends on the negative pressure generated inside the jet flow channel, so that the negative pressure generated by air supply inside the jet flow channel is small, the air inducing quantity at the air inducing port is also small, and the increase of the air supply quantity of the whole wall-mounted air conditioner indoor unit is not obvious.
Disclosure of Invention
An object of the present invention is to overcome at least one of the drawbacks of the prior art and to provide a wall-mounted indoor unit of an air conditioner with a large amount of induced air.
A further object of the present invention is to improve the uniformity of the outlet air from an indoor unit of a wall-mounted air conditioner.
It is another further object of the present invention to maintain the lightweight and aesthetic appearance of a wall-mounted air conditioning indoor unit.
In order to achieve the above object, the present invention provides a wall-mounted type air conditioning indoor unit, including:
the heat exchanger comprises a shell, a heat exchanger and a fan, wherein the shell is provided with a heat exchange airflow outlet which extends along the transverse direction of the shell, and the interior of the shell is provided with the heat exchanger and the fan so as to enable the heat exchange airflow in the shell to be sent out through the heat exchange airflow outlet by the fan;
the jet air duct is provided with a jet air outlet extending along the transverse direction of the shell, and the jet air duct and the shell are arranged at intervals so as to form a drainage air duct between the heat exchange airflow outlet and the jet air outlet; and
and the jet fan is communicated with the jet air duct to controllably drive the air outside the wall-mounted air conditioner indoor unit to flow to the jet air duct and to be sent out through the jet air outlet, so that the natural air which flows out of the jet air outlet and is not subjected to heat exchange is mixed with the natural air which flows out of the drainage air duct and is not subjected to heat exchange and the heat exchange air flow sent out through the heat exchange air flow outlet.
Optionally, the heat exchange airflow outlet is formed in the bottom of the front side of the casing, and the jet air outlet is formed in the front side of the jet air duct; and is
The jet air duct and the machine shell are arranged below the machine shell at intervals, so that the drainage air duct is formed above the jet air duct and below the machine shell.
Optionally, the jet fan is communicated with one transverse end part of the jet air duct adjacent to the jet fan so as to convey natural air into the jet air duct along a transverse direction; and is
An air outlet cavity communicated with the jet air outlet and a gas collecting cavity which is positioned at the rear side of the air outlet cavity and communicated with the jet fan are limited in the jet air duct, so that natural air flowing into the jet air duct flows through the gas collecting cavity and the air outlet cavity in sequence and then is sent out from the jet air outlet, and the air outlet cavity is gradually reduced from back to front.
Optionally, the air duct wall of the jet air duct for defining the top of the air outlet cavity extends obliquely downwards from back to front, and the air duct wall of the jet air duct for defining the bottom of the air outlet cavity extends straightly from back to front.
Optionally, the inclination angle of the air duct wall of the jet air duct for defining the top of the air outlet cavity is set to enable the ratio of the height of the jet air outlet in the vertical direction to the maximum height of the air outlet cavity in the vertical direction to be any ratio in the range of 1: 5-1: 3.
Optionally, the ratio of the depth of the air outlet cavity extending along the front-back direction to the depth of the jet air duct extending along the front-back direction is any ratio in the range of 1: 2-3: 4.
Optionally, the jet fan is communicated with one transverse end part of the jet air duct adjacent to the jet fan so as to convey natural air into the jet air duct along a transverse direction; and is
The jet air duct is internally provided with a plurality of diversion ribs which are arranged at intervals along the transverse direction so as to divert the natural air which transversely flows into the jet air duct to the jet air outlet.
Optionally, the air guiding rib has a shape convexly curved towards a side facing away from the windward side thereof.
Optionally, the jet fan is disposed at one of the lateral sides in the casing, and includes a centrifugal fan and a centrifugal volute located outside the centrifugal fan, and the centrifugal volute and the jet air duct are in sealed communication through an air guide channel; and is
The air guide channel firstly bends and extends towards the transverse outer side of the shell from top to bottom and then bends and extends towards the transverse inner side of the shell so as to be smoothly communicated with the centrifugal volute and the jet flow air duct simultaneously.
Optionally, the casing further includes a framework for supporting the heat exchanger and the fan, the jet fan is disposed at one of the lateral sides in the casing and at the lateral outer side of the framework, and the fan is a cross-flow fan with a rotating shaft extending along the lateral direction of the casing; and is
A jet air inlet communicated with an airflow inlet of the jet fan is formed in a transverse side plate, adjacent to the jet fan, of the shell, so that air outside the wall-mounted air conditioner indoor unit is allowed to flow to the jet fan through the jet air inlet; the top of the shell is provided with a main air inlet, and the heat exchanger is arranged on an airflow flow path between the main air inlet and the fan so as to exchange heat with airflow entering the shell through the main air inlet.
The wall-mounted air conditioner indoor unit is provided with the jet flow air duct and the jet flow fan, and external air can be actively injected into the jet flow air duct through the jet flow fan. And, the efflux wind channel sets up with the casing interval, thereby form the drainage wind channel between heat transfer air current export and efflux air outlet, that is to say, the both sides in drainage wind channel are heat transfer air current export and efflux air outlet respectively, along with the air supply of heat transfer air current export and efflux air outlet, the both sides in drainage wind channel all can produce the negative pressure, therefore, the air flow that introduces in the drainage wind channel under the negative pressure effect of both sides is bigger, the natural air that introduces through the drainage wind channel mixes with the natural air that sends out through efflux air outlet and the heat transfer air that sends out through the heat transfer air current export, thereby the whole induced air volume and the whole air supply volume of wall-hanging air conditioning indoor set have further been improved.
Furthermore, the jet air outlet is positioned at the front side of the jet air duct and extends transversely, the jet fan is communicated with one transverse end of the jet air duct, and the airflow flowing into the jet air duct is perpendicular to the airflow flowing out of the jet air duct, so that how to ensure the air outlet uniformity of the jet air outlet in the transverse direction is a design difficulty and a design key point. Therefore, the air-out uniformity of the wall-mounted air conditioner indoor unit is improved in two aspects of air-out temperature and air-out quantity.
Furthermore, the jet fan is arranged on one of the transverse side parts in the shell, and only a space for accommodating the jet fan is required to be reserved on one of the transverse side parts in the shell, so that the space of the shell in the front-back direction is not occupied, and a fan shielding device is not required to be arranged. On the one hand, ensured that whole wall-hanging air conditioning indoor set's casing is still complete to make it keep better pleasing to the eye effect, on the other hand, the width that the wall-hanging air conditioning indoor set of this application is only transversely longer than traditional on-hook, and other aspects are as good as with traditional on-hook, still very light.
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 structural view of a wall-mounted type air conditioning indoor unit according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a wall-mounted type air conditioning indoor unit according to an embodiment of the present invention with a cabinet removed;
FIG. 4 is a schematic cross-sectional view taken in longitudinal section of a jet duct extending in a front-to-back direction according to another embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a jet stack taken along a horizontal cross-sectional plane according to further embodiments of the present invention;
fig. 6 is a schematic enlarged view of a portion a in fig. 5.
Detailed Description
The invention provides a wall-mounted air conditioner indoor unit, which is an air conditioner indoor unit usually hung on a wall or other supporting positions. Fig. 1 is a schematic configuration view of a wall-mounted type air conditioning indoor unit according to an embodiment of the present invention, and fig. 2 is a schematic cross-sectional view of the wall-mounted type air conditioning indoor unit according to an embodiment of the present invention. Referring to fig. 1 and 2, a wall-mounted air conditioning indoor unit 1 according to the present invention includes a casing 10, on which a heat exchange airflow outlet 11 is formed to extend in a transverse direction of the casing 10, and a heat exchanger 20 and a fan 30 are disposed inside the casing, wherein the heat exchanger 20 can exchange heat with an airflow passing through the heat exchanger, so as to generate a heat exchange airflow. The fan 30 may cause the heat exchange air flow in the cabinet 10 to be sent out through the heat exchange air flow outlet 11. Specifically, the enclosure 10 may include a cover 13 at the rear side and a front panel 14 at the front side, and two end panels 16 at both lateral sides, the cover 13, the front panel 14, and the two end panels 16 being coupled in a mating manner.
Fig. 3 is a schematic structural view of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention with a cabinet hidden. Referring to fig. 2 and 3, the wall-mounted air conditioning indoor unit 1 further includes a jet duct 40 and a jet fan 50. The jet air duct 40 is provided with a jet air outlet 41 extending along the transverse direction of the casing 10 to enlarge the air supply range of the wall-mounted air conditioner indoor unit 1 in the transverse direction. The heat exchange airflow outlet 11 and the jet outlet 41 extend substantially the same length in the transverse direction to enhance mixing between the two airflows delivered from the two outlets. In particular, the jet air duct 40 is spaced apart from the cabinet 10 to form a guide air duct 80 between the heat exchange air flow outlet 11 and the jet air outlet 41. The jet fan 50 is communicated with the jet air duct 40 to controllably drive the air outside the wall-mounted air conditioner indoor unit 1 to flow to the jet air duct 40 and to be sent out through the jet air outlet 41, so that the natural air which flows out through the jet air outlet 41 and is not subjected to heat exchange is mixed with the natural air which flows out through the drainage air duct 80 and is not subjected to heat exchange and the heat exchange air flow sent out through the heat exchange air flow outlet 11.
The wall-mounted air conditioner indoor unit 1 is provided with the jet air duct 40 and the jet fan 50, external air can be actively injected into the jet air duct 40 through the jet fan 50, and compared with the mode of only utilizing negative pressure passive drainage in the prior art, the active jet air flow of the jet fan 50 is greatly improved, and the air supply distance is increased. Moreover, the two sides of the air guide duct 80 are respectively the heat exchange air flow outlet 11 and the jet flow air outlet 41, and negative pressure is generated on both sides of the air guide duct 80 along with the air supply of the heat exchange air flow outlet 11 and the jet flow air outlet 41, so that the air flow rate introduced into the air guide duct 80 under the negative pressure action of both sides is relatively large, and the natural air introduced through the air guide duct 80 is mixed with the natural air sent out through the jet flow air outlet 41 and the heat exchange air flow sent out through the heat exchange air flow outlet 11, thereby further improving the whole air guide amount and the whole air supply amount of the wall-mounted air conditioning indoor unit 1. It should be noted that the natural air in the present invention means air that has not undergone heat exchange.
In some embodiments, the heat exchange airflow outlet 11 is formed at the bottom of the front side of the casing 10, the jet air outlet 41 is formed at the front side of the jet air duct 40, and the jet air duct 40 is spaced from the casing 10 and disposed below the casing 10. That is, the jet flow duct 40 is disposed below the cabinet 10 and spaced apart from the cabinet 10. Therefore, the heat exchange airflow outlet 11 at the bottom of the front side of the casing 10 and the jet flow air outlet 41 at the front side of the jet flow air duct 40 are arranged in the vicinity, so that the heat exchange airflow sent out from the heat exchange airflow outlet 11 and the natural air sent out from the jet flow air outlet 41 are better mixed, and the air outlet of the wall-mounted air conditioner indoor unit 1 is ensured to be softer.
Further, a drainage duct 80 is formed above the jet duct 40 and below the cabinet 10. That is, the draft air duct 80 is an air duct formed by a gap between the jet air duct 40 and the cabinet 10. Therefore, the three air flows of the heat exchange air flow sent out by the heat exchange air flow outlet 11, the natural air sent out by the jet flow air outlet 41 and the natural air sent out by the drainage air duct 80 are close to each other, so that the heat exchange air flow, the natural air and the natural air are conveniently mixed into soft wind.
In some embodiments, the jet fan 50 communicates with a lateral end of the jet stack 40 adjacent the jet fan 50 to deliver natural air laterally into the jet stack 40. However, since the jet outlet 41 is located at the front side of the jet air duct 40 and extends in the lateral direction, the flow direction of the air flowing into the jet air duct 40 is perpendicular to the flow direction of the air flowing out of the jet air duct 40. That is, the air flow needs to be reversed within the jet duct 40 by approximately 90 degrees.
FIG. 4 is a schematic cross-sectional view taken in longitudinal section with the jet duct extending in the fore-aft direction according to another embodiment of the invention. In order to ensure uniform air outlet in the transverse direction of the jet air outlet 41, in some embodiments, the jet air duct 40 defines an air outlet chamber 43 communicating with the jet air outlet 41 and an air collecting chamber 44 located at the rear side of the air outlet chamber 43 and communicating with the jet fan 50, so that the natural air flowing into the jet air duct 40 flows through the air collecting chamber 44 and the air outlet chamber 43 in sequence and then is discharged from the jet air outlet 41. That is to say, the natural air driven by the jet fan 50 flows into the air collecting chamber 44 first, and then flows into the air outlet chamber 43, and static pressure can be increased through the air collecting chamber 44, so that the airflow flowing into the air collecting chamber 44 along the transverse direction is corrected to flow out of the air collecting chamber 44 along the front-rear direction and flow into the air outlet chamber 43 while ensuring a large air guiding amount, thereby facilitating air to be sent out through the jet air outlet 41 on the front side, reducing airflow flowing resistance, and facilitating the formation of relatively uniform air outlet at the jet air outlet 41.
Further, the outlet chamber 43 tapers from the rear to the front. When the airflow flows through the air outlet cavity 43, the flow area is gradually reduced, and the flow speed is gradually increased, so that the flow speed of the airflow flowing out of the jet flow air outlet 41 is improved.
In some embodiments, the air collecting chamber 44 defined inside the jet air duct 40 is a flat chamber horizontally placed, on one hand, the air collecting chamber 44 can provide a flow space with a larger cross section for natural air flowing into the jet air duct 40 from one of the lateral ends of the jet air duct 40, so that the natural air can flow to the other lateral end of the jet air duct 40 under the condition of smaller flow resistance, and thus relatively uniform outlet air can be formed in the lateral direction of the jet air outlet 41; on the other hand, the flow area of the front opening of the air collecting chamber 44 is relatively small, so that the natural air flowing from the air collecting chamber 44 to the air outlet chamber 43 has a relatively high flow speed.
In some embodiments, the duct wall 40a of the jet duct 40 defining the top of the duct chamber 43 extends obliquely downward from the rear to the front, and the duct wall 40b of the jet duct 40 defining the bottom of the duct chamber 43 extends straight from the rear to the front. Since the air guide duct 80 is located above the jet air duct 40, the air duct wall 40a of the jet air duct 40 for defining the top of the air chamber 43 also serves to define the bottom of the air guide duct 80, and the air guide duct 80 thus formed has a straight section 81 at the rear side and a gradually expanding section 82 at the front of the straight section, and the flow area of the gradually expanding section 82 gradually expands from the rear to the front to expand the air supply range.
In some embodiments, the inclination angle of the air duct wall 40a of the jet air duct 40 for defining the top of the air chamber 43 is set such that the height H of the jet air outlet 41 in the vertical direction1The maximum height H of the air outlet cavity 43 in the vertical direction2The ratio of the two is any ratio within the range of 1: 5-1: 3. Therefore, the air outlet speed and the air outlet quantity at the jet flow air outlet 41 can be ensured to be optimally balanced, the problem that the jet flow air outlet 41 cannot smoothly air outlet due to the fact that the height of the jet flow air outlet 41 is smaller as the inclination angle of the air duct wall 40a is too large can be avoided, and the effect that the airflow flow is accelerated due to the fact that the height of the jet flow air outlet 41 is larger as the inclination angle of the air duct wall 40a is too small can be avoided.
In some embodiments, the outlet chamber 43 extends in the front-to-rear direction to a depth L1A depth L extending in the front-rear direction from the jet flow duct 402The ratio of the air outlet chamber 43 to the jet air duct 40 is any ratio within a range of 1: 2-3: 4, so that relatively uniform air supply is formed in the jet air outlet 41 in the transverse direction, the problems that the air outlet amount of the air outlet chamber 43 is large on the left side and the air outlet amount of the air outlet chamber is small on the right side of the jet air outlet 41 adjacent to the jet fan 50 due to too large depth of the jet air duct 40 are avoided, and the problems that the air outlet amount of the air outlet chamber 43 is small on the left side and the air outlet amount of the air outlet chamber 41 is large on the right side due to too small depth of the jet air duct 40 can be avoided.
In alternative embodiments, the jet stack 40 may also be a generally horizontally disposed flat stack having a flat jet chamber defined therein.
In some embodiments, the jet fan 50 communicates with a lateral end of the jet stack 40 adjacent the jet fan 50 to deliver natural air laterally into the jet stack 40. However, since the jet outlet 41 is located at the front side of the jet air duct 40 and extends in the lateral direction, the flow direction of the air flowing into the jet air duct 40 is perpendicular to the flow direction of the air flowing out of the jet air duct 40. That is, the air flow needs to be reversed within the jet duct 40 by approximately 90 degrees. Fig. 5 is a schematic cross-sectional view of a jet duct according to further embodiments of the present invention, taken along a horizontal cross-sectional plane, and fig. 6 is a schematic enlarged view of portion a of fig. 5. In order to ensure uniform air outlet of the jet air outlet 41 in the transverse direction, a plurality of guide ribs 42 arranged at intervals in the transverse direction are arranged inside the jet air duct 40 to guide natural air flowing into the jet air duct 40 in the transverse direction to the jet air outlet 41. In other words, the natural air flowing transversely in the jet air duct 40 can be guided to the jet air outlet 41 relatively uniformly by the guide ribs 42, so that the heat exchange air flowing out from any position of the heat exchange air outlet 41 can be mixed with the natural air flowing out from the jet air outlet 41, and the outlet uniformity of the wall-mounted air conditioner indoor unit 1 in the transverse direction is improved in the aspects of outlet air temperature and outlet air quantity.
In some embodiments, the airflow guiding rib 42 has a shape that is convexly curved toward a side away from the windward side thereof, so that the airflow guiding rib 42 has a capability of retaining a preset amount of airflow on the windward side (the side where the windward side is located), and the preset amount of airflow flows forward to the jet flow outlet 41 under the guiding action of the airflow guiding rib 42, thereby achieving uniform air outlet of the jet flow outlet 41 in the transverse direction under the cooperation of the airflow guiding ribs 42.
In some embodiments, the air guiding rib 42 may include a first straight section 421 extending along the preset direction, an arc section 422 extending from the end of the first straight section 421 to protrude from the rear to the front in the preset direction, and a second straight section 423 extending from the end of the arc section 422 to the front of the jet outlet 41. That is, the first flat section 421 and the second flat section 423 are perpendicular to each other, and the central angle of the arc-shaped section 422 is 90 °. The extending direction of the first straight section 421 is the same as the direction of the airflow flowing into the jet air duct 40, which not only can keep a preset amount of airflow below the first straight section 421 so as to guide the airflow to the jet air outlet 41 through the arc-shaped section 422 and the second straight section 423, but also can reduce the flow resistance of the airflow after encountering the arc-shaped section 422.
Further, the depths of the plurality of air guide ribs 42 arranged in order in the above-described preset direction in the front-rear direction increase in order. That is, the depths of the plurality of air guide ribs 42 in the front-rear direction are increased in a step-like manner in the preset direction. Therefore, the preset air flow remained on the windward side of each flow guiding rib 42 can be basically the same, and the air outlet uniformity of the jet air outlet 41 in the transverse direction is further improved. Since the front end of the second straight section 423 of each flow guiding rib 42 extends to the jet outlet 41, the front ends of the flow guiding ribs 42 are flush, and the rear ends of the plurality of flow guiding ribs 42 sequentially arranged along the preset direction extend backward to a greater depth.
Specifically, the first straight section 421 and the arc section 422 of the plurality of flow guiding ribs 42 sequentially arranged along the preset direction are respectively the same. That is, the first straight section 421 of each air guiding rib 42 has the same length extending in the preset direction, and the curved angle and the specific shape of the arc section 422 of each air guiding rib 42 are the same, so as to obtain substantially the same air guiding effect with less resistance at each air guiding rib 42. Further, the depths of the second straight sections 423 of the plurality of flow guide ribs 42 arranged in sequence along the preset direction in the front-rear direction are increased in sequence, so that the blocking effect of the flow guide rib 42 at the upstream of each flow guide rib 42 on the airflow can be compensated, and each flow guide rib 42 can retain the airflow with the substantially same amount on the windward side thereof.
Further, the depths of the second straight sections 423 of the plurality of air guide ribs 42 sequentially arranged in the preset direction in the front-rear direction increase by the same gradient. For the jet air duct 40 with a specific width in the transverse direction, the increasing width of the depth of the second straight section 423 of each air guiding rib 42 in the front-back direction is approximately 0.1 to 0.2 times the depth of the second straight section 423 of the air guiding rib 42 located at the most upstream in the front-back direction, so that a better uniform air outlet effect can be obtained at the jet air outlet 41.
In some embodiments, the end portion of the jet outlet 41 adjacent to the jet fan 50 is provided with an end portion flow guiding rib 45, and the end portion flow guiding rib 45 is located on the upstream side of each flow guiding rib 42 in the preset direction. That is, after the airflow flows into the jet air duct 40, the airflow is guided by the end guide ribs 45 and then by the plurality of guide ribs 42.
Further, the end deflector rib 45 has a shape convexly curved toward the windward side thereof, that is, the end deflector rib 45 has an arc shape convexly curved and extended from the rear to the front in the direction opposite to the preset direction. Therefore, part of the air flow flowing to the end diversion rib 45 can be guided backwards, so that the air flow and other air flows jointly flow along the preset direction, and the phenomenon that the air flow flowing into the jet air duct 40 is seriously uneven due to the fact that the air flow of the jet air outlet 41 is seriously uneven because the air flow of the majority of the air flow is sent out through the end part, close to the jet fan 50, of the jet air outlet 41 is avoided. In addition, the protruding direction of the end diversion rib 45 can reduce the flow resistance of the end diversion rib 45 to the air flow, and avoid the adverse phenomena of vortex and the like caused by the formation of a concave cavity on the windward side of the end diversion rib 45.
Further, in order to ensure the air outlet uniformity of the jet outlet 41 in the transverse direction, the depth of the end diversion rib 45 in the front-rear direction is set to be smaller than the depth of any one of the diversion ribs 42 in the front-rear direction. If the depth of the end diversion rib 45 in the front-rear direction is too large, the airflow at the plurality of diversion ribs 42 adjacent to the end diversion rib 45 may be small, and the plurality of diversion ribs 42 cannot retain a sufficient amount of airflow on the windward side thereof, so that the uniformity of the air outlet of the jet air outlet 41 in the transverse direction cannot be ensured.
In alternative embodiments, the end ribs 45 may also have other suitable shapes, for example, they may be flat plates extending in the front-rear direction or curved in a shape that projects away from the windward side thereof.
In some embodiments, in order to further improve the air outlet uniformity of the jet air outlet 41 in the transverse direction, the air outlet cavity 43 and the air collecting cavity 44 are defined in the jet air duct 40, and the air guiding rib 42 is disposed in the air outlet cavity 43.
In some embodiments, the jet fan 50 is disposed at one of the lateral sides in the housing 10, and includes a centrifugal fan 51 and a centrifugal volute 52 located outside the centrifugal fan 51, and the centrifugal volute 52 and the jet duct 40 are in sealed communication through a wind guide channel 60. Because the centrifugal volute 52 is oriented downward, the transverse end of the jet air duct 40, which is in communication with the jet fan 50, is oriented horizontally, and the two are oriented vertically, which is not favorable for airflow if directly communicated. The air guide channel 60 is arranged between the two to be used as a section for buffering and reversing the air flow, so that the flow resistance of the air flow can be reduced.
Further, the air guide passage 60 extends from top to bottom, first, to be bent toward the lateral outer side of the casing 10, and then, to be bent toward the lateral inner side of the casing 10, so as to smoothly communicate with the centrifugal scroll 52 and the jet air duct 40 at the same time. Therefore, the airflow is reversed under the premise of small flow resistance by slightly prolonging the airflow flow path between the centrifugal volute 52 and the jet flow air duct 40, and the high flow speed of the airflow is ensured. The extension of the airflow path between the centrifugal volute 52 and the jet duct 40 is very small and has little effect on the airflow velocity.
In some embodiments, the cabinet 10 further includes a frame 70 for supporting the heat exchanger 20 and the fan 30, and the jet fan 50 is disposed at one of lateral sides in the cabinet 10 and laterally outside the frame 70, so that the arrangement between the jet fan 50 and other structures in the cabinet 10 is more compact, thereby reducing the volume of the wall-mounted air conditioning indoor unit 1. Therefore, only a space for accommodating the jet fan 50 needs to be left in one of the lateral side portions in the housing 10, and the housing 10 does not occupy the space in the front-rear direction and does not need to be provided with a fan shielding device. On the one hand, the casing 10 of the whole wall-mounted air conditioner indoor unit 1 is ensured to be still complete, so that the whole wall-mounted air conditioner indoor unit 1 can keep a good attractive effect, on the other hand, the width of the wall-mounted air conditioner indoor unit 1 is only slightly longer than that of the traditional hanging machine in the transverse direction, the shape of the wall-mounted air conditioner indoor unit is consistent with that of the traditional hanging machine, and the wall-mounted air conditioner indoor unit is not different from that of the traditional hanging machine in other aspects and is still very light.
The fan 30 is a cross flow fan having a rotation axis extending in the lateral direction of the casing 10, and has a large air supply amount and a large air supply range in the lateral direction.
Further, in order to improve the structural stability of the jet air duct 40, the other transverse end of the jet air duct 40 may be fixedly connected to the frame 70, so as to avoid the inclination or shaking of the jet air duct 40 caused by the suspended arrangement of the other transverse end of the jet air duct 40.
In some embodiments, the top of the enclosure 10 defines a main air inlet 12, and the heat exchanger 20 may be disposed in an airflow path between the main air inlet 12 and the fan 30 to exchange heat with an airflow entering the enclosure 10 through the main air inlet 12. A transverse side plate of the casing 10, which is adjacent to the jet fan 50, is provided with a jet air inlet 15 communicated with an airflow inlet of the jet fan 50, so as to allow air outside the wall-mounted air conditioner indoor unit 1 to flow to the jet fan 50 through the jet air inlet 15. In particular, the jet intake 15 may be formed in the end plate 16 and in part of the housing 13. The airflow inlet of the jet fan 50 may be directed toward the jet intake opening 15, i.e., the airflow inlet of the jet fan 50 is directed toward the lateral outside of the cabinet 10. So set up, efflux air intake 15 and main air intake 12 are in two different sides of casing 10 respectively, and on the one hand, the air inlet of two air intakes is mutual noninterference, and on the other hand, the setting of efflux air intake 15 can not reduce the size of main air intake 12, has increased the total flow area of air intake of wall-hanging air conditioning indoor set 1, has improved its intake.
It should be further understood by those skilled in the art that terms such as "upper", "lower", "front", "rear", and the like used for indicating the orientation or the positional relationship in the embodiments of the present invention are based on the actual usage state of the wall-mounted air conditioning indoor unit 1, and these terms are only used for convenience of description and understanding of the technical solution of the present invention, and do not indicate or imply that the device referred to has to have a specific orientation, be configured and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
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 a wall-mounted air conditioner, comprising:
the heat exchanger comprises a shell, a heat exchanger and a fan, wherein the shell is provided with a heat exchange airflow outlet which extends along the transverse direction of the shell, and the interior of the shell is provided with the heat exchanger and the fan so as to enable the heat exchange airflow in the shell to be sent out through the heat exchange airflow outlet by the fan;
the jet air duct is provided with a jet air outlet extending along the transverse direction of the shell, and the jet air duct and the shell are arranged at intervals so as to form a drainage air duct between the heat exchange airflow outlet and the jet air outlet; and
and the jet fan is communicated with the jet air duct to controllably drive the air outside the wall-mounted air conditioner indoor unit to flow to the jet air duct and to be sent out through the jet air outlet, so that the natural air which flows out of the jet air outlet and is not subjected to heat exchange is mixed with the natural air which flows out of the drainage air duct and is not subjected to heat exchange and the heat exchange air flow sent out through the heat exchange air flow outlet.
2. The wall-mounted air conditioning indoor unit of claim 1,
the heat exchange airflow outlet is formed in the bottom of the front side of the shell, and the jet air outlet is formed in the front side of the jet air duct; and is
The jet air duct and the machine shell are arranged below the machine shell at intervals, so that the drainage air duct is formed above the jet air duct and below the machine shell.
3. The wall-mounted air conditioning indoor unit of claim 2,
the jet fan is communicated with one transverse end part of the jet air duct, which is adjacent to the jet fan, so as to convey natural air into the jet air duct along the transverse direction; and is
An air outlet cavity communicated with the jet air outlet and a gas collecting cavity which is positioned at the rear side of the air outlet cavity and communicated with the jet fan are limited in the jet air duct, so that natural air flowing into the jet air duct flows through the gas collecting cavity and the air outlet cavity in sequence and then is sent out from the jet air outlet, and the air outlet cavity is gradually reduced from back to front.
4. The wall-mounted air conditioning indoor unit of claim 3,
the air duct wall of the jet air duct for limiting the top of the air outlet cavity extends obliquely downwards from back to front, and the air duct wall of the jet air duct for limiting the bottom of the air outlet cavity extends straightly from back to front.
5. The wall-mounted air conditioning indoor unit of claim 4,
the inclination angle of the air duct wall of the jet air duct for limiting the top of the air outlet cavity is set to enable the ratio of the height of the jet air outlet in the vertical direction to the maximum height of the air outlet cavity in the vertical direction to be any ratio in the range of 1: 5-1: 3.
6. The wall-mounted air conditioning indoor unit of claim 4,
the ratio of the depth of the air outlet cavity extending along the front-back direction to the depth of the jet flow air channel extending along the front-back direction is any ratio within the range of 1: 2-3: 4.
7. The wall-mounted air conditioning indoor unit of claim 2,
the jet fan is communicated with one transverse end part of the jet air duct, which is adjacent to the jet fan, so as to convey natural air into the jet air duct along the transverse direction; and is
The jet air duct is internally provided with a plurality of diversion ribs which are arranged at intervals along the transverse direction so as to divert the natural air which transversely flows into the jet air duct to the jet air outlet.
8. The wall-mounted air conditioning indoor unit of claim 7,
the flow guiding ribs are in a shape of protruding and bending towards one side of the wind-facing surface of the flow guiding ribs.
9. The wall-mounted air conditioning indoor unit of claim 2,
the jet fan is arranged on one transverse side part in the shell and comprises a centrifugal fan and a centrifugal volute positioned outside the centrifugal fan, and the centrifugal volute is hermetically communicated with the jet air channel through an air guide channel; and is
The air guide channel firstly bends and extends towards the transverse outer side of the shell from top to bottom and then bends and extends towards the transverse inner side of the shell so as to be smoothly communicated with the centrifugal volute and the jet flow air duct simultaneously.
10. The wall-mounted air conditioning indoor unit of claim 2,
the casing further comprises a framework for supporting the heat exchanger and the fan, the jet fan is arranged on one of the transverse side parts in the casing and is positioned on the transverse outer side of the framework, and the fan is a cross-flow fan with a rotating shaft extending along the transverse direction of the casing; and is
A jet air inlet communicated with an airflow inlet of the jet fan is formed in a transverse side plate, adjacent to the jet fan, of the shell, so that air outside the wall-mounted air conditioner indoor unit is allowed to flow to the jet fan through the jet air inlet; the top of the shell is provided with a main air inlet, and the heat exchanger is arranged on an airflow flow path between the main air inlet and the fan so as to exchange heat with airflow entering the shell through the main air inlet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010838031.XA CN114076353A (en) | 2020-08-19 | 2020-08-19 | Wall-mounted air conditioner indoor unit |
| PCT/CN2021/124123 WO2022037723A1 (en) | 2020-08-19 | 2021-10-15 | Wall-mounted air conditioner indoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010838031.XA CN114076353A (en) | 2020-08-19 | 2020-08-19 | Wall-mounted air conditioner indoor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114076353A true CN114076353A (en) | 2022-02-22 |
Family
ID=80281630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010838031.XA Pending CN114076353A (en) | 2020-08-19 | 2020-08-19 | Wall-mounted air conditioner indoor unit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114076353A (en) |
| WO (1) | WO2022037723A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013875A (en) * | 2022-06-16 | 2022-09-06 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner indoor unit |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811926A (en) * | 2022-06-02 | 2022-07-29 | 珠海格力电器股份有限公司 | Flow guide structure and air conditioner indoor unit with same |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3114528C2 (en) * | 1981-04-10 | 1983-03-17 | Paul Pollrich GmbH & Co, 4050 Mönchengladbach | Air distribution device for temperature control |
| JPH0875186A (en) * | 1994-09-05 | 1996-03-19 | Toshiharu Fujimi | Cooler |
| JP2001090974A (en) * | 1999-09-20 | 2001-04-03 | Fujitsu General Ltd | Air-conditioner |
| CN105698265A (en) * | 2014-11-29 | 2016-06-22 | 青岛海尔空调器有限总公司 | Split wall-hung air conditioner with drainage structure |
| CN105698351B (en) * | 2014-11-29 | 2020-02-21 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner with drainage structure |
| CN108397826A (en) * | 2018-03-12 | 2018-08-14 | 青岛海尔空调器有限总公司 | Wall-hanging indoor unit of air conditioner |
| CN208237989U (en) * | 2018-03-16 | 2018-12-14 | 青岛海高设计制造有限公司 | A kind of wall-mounted air conditioner |
| CN109210628A (en) * | 2018-09-10 | 2019-01-15 | 青岛海尔空调器有限总公司 | Air-conditioner air outlet flow guiding structure and air conditioner indoor unit |
| CN209944532U (en) * | 2019-05-31 | 2020-01-14 | 广东美的制冷设备有限公司 | Air conditioner |
| CN111006318A (en) * | 2019-12-18 | 2020-04-14 | 青岛海尔空调器有限总公司 | Indoor unit of air conditioner |
| CN212431090U (en) * | 2020-08-19 | 2021-01-29 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner indoor unit |
-
2020
- 2020-08-19 CN CN202010838031.XA patent/CN114076353A/en active Pending
-
2021
- 2021-10-15 WO PCT/CN2021/124123 patent/WO2022037723A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013875A (en) * | 2022-06-16 | 2022-09-06 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner indoor unit |
| CN115013875B (en) * | 2022-06-16 | 2023-12-15 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner indoor unit |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022037723A1 (en) | 2022-02-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212431090U (en) | Wall-mounted air conditioner indoor unit | |
| CN114060934B (en) | Cabinet type air conditioner indoor unit | |
| CN212431089U (en) | Jet device for wall-mounted air conditioner indoor unit and wall-mounted air conditioner indoor unit | |
| CN213272867U (en) | Wall-mounted air conditioner indoor unit | |
| CN108050588B (en) | Indoor unit of wall-mounted air conditioner | |
| CN112032847B (en) | Wall-mounted air conditioner indoor unit | |
| CN216693752U (en) | Wall-mounted air conditioner indoor unit | |
| CN114076353A (en) | Wall-mounted air conditioner indoor unit | |
| CN112113274A (en) | Wall-mounted air conditioner indoor unit | |
| WO2021223485A1 (en) | Cabinet air conditioner indoor unit | |
| CN114060933B (en) | Cabinet type air conditioner indoor unit | |
| CN105091087A (en) | Air conditioner indoor unit with two heat exchangers | |
| CN115143527A (en) | Vertical air conditioner indoor unit | |
| CN108050586B (en) | Indoor unit of wall-mounted air conditioner | |
| CN213272866U (en) | Jet device for wall-mounted air conditioner indoor unit and wall-mounted air conditioner indoor unit | |
| WO2022037722A1 (en) | Jet device for wall-mounted air conditioner indoor unit, and wall-mounted air conditioner indoor unit | |
| CN218119935U (en) | Vertical air conditioner indoor unit | |
| CN218119929U (en) | Vertical air conditioner indoor unit | |
| CN203857569U (en) | Air conditioner indoor unit with two heat exchangers | |
| CN107869784B (en) | Indoor unit of wall-mounted air conditioner | |
| CN107940552B (en) | Indoor unit of wall-mounted air conditioner | |
| CN213577782U (en) | Jet device for cabinet air conditioner indoor unit and cabinet air conditioner indoor unit | |
| CN115143526A (en) | Vertical air conditioner indoor unit | |
| CN219036816U (en) | Indoor unit of air conditioner | |
| CN110056970A (en) | Wall-hanging indoor unit of air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |