CN212431089U - Jet device for wall-mounted air conditioner indoor unit and wall-mounted air conditioner indoor unit - Google Patents
Jet device for wall-mounted air conditioner indoor unit and wall-mounted air conditioner indoor unit Download PDFInfo
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- CN212431089U CN212431089U CN202021738276.7U CN202021738276U CN212431089U CN 212431089 U CN212431089 U CN 212431089U CN 202021738276 U CN202021738276 U CN 202021738276U CN 212431089 U CN212431089 U CN 212431089U
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Abstract
The utility model relates to a machine in fluidic device and wall-hanging air conditioning for machine in wall-hanging air conditioning, machine in the wall-hanging air conditioning include the casing, set up along the heat transfer air current export of horizontal extension on the casing. The fluidic device comprises: the front side of the jet air duct is provided with a jet air outlet extending along the transverse direction; and the jet fan is communicated with one transverse side part of the jet air duct so as to controllably drive air outside the jet device to flow into the jet air duct along a preset direction parallel to the transverse direction and send out from the jet air outlet, so that natural air which flows out from the jet air outlet and is not subjected to heat exchange is mixed with heat exchange air flow sent out from the heat exchange air flow outlet. The inside in efflux wind channel is equipped with a plurality of water conservancy diversion muscle along horizontal interval range to become along the natural air water conservancy diversion in horizontal inflow efflux wind channel from backward forward flow to efflux air outlet, guaranteed the normal air supply of the efflux air outlet optional position department of horizontal extension, and induced air volume is great.
Description
Technical Field
The utility model relates to an air conditioning technology field especially relates to a fluidic device and wall-hanging air conditioning indoor set for wall-hanging air conditioning indoor set.
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 wall-mounted air-conditioning indoor units in the prior art are designed with a drainage scheme, and mainly utilize the airflow at the air outlet to drive the drainage air outlet to exhaust air, so that although the effect of mixing natural air and heat exchange airflow can be achieved, the air induction amount is less, and the effect of soft air supply actually experienced by a user is not obvious. In the prior art, some wall-mounted air-conditioning indoor units are additionally provided with an induced draft module at the rear side outside a casing, an induced draft fan is arranged in the induced draft module, and the induced draft fan drives indoor air to flow to a jet flow channel and flow out of the jet flow channel, so that the induced draft quantity is improved. However, in the prior art, the direction of the airflow flowing into the jet flow channel is basically consistent with the direction of the airflow flowing out of the jet flow channel, which strictly limits that the arrangement position of the induced draft fan and even the whole induced draft module must be at the rear side of the outlet of the jet flow channel, and further causes the problems of large volume, heavy weight and the like of the wall-mounted air conditioner indoor unit.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an object of first aspect aims at overcoming at least one defect of prior art, provides a jet device that induced air volume is great, occupation space is less for wall-hanging air conditioning indoor set.
The utility model discloses a further purpose of first aspect is to further improve the air-out homogeneity of fluidic device in transversely.
The utility model discloses another further purpose of first aspect is to improve fluidic device's air-out speed, prolong its air supply distance.
The utility model discloses the purpose of second aspect provides a wall-hanging air conditioning indoor set with above-mentioned fluidic device.
According to the utility model discloses an aspect, the utility model provides a fluidic device for machine in wall-hanging air conditioning, machine in wall-hanging air conditioning includes the casing, set up on the casing along the heat transfer air current export that transversely extends in order to be used for seeing off the heat transfer air current, wherein, fluidic device includes:
the front side of the jet air duct is provided with a jet air outlet extending along the transverse direction; and
the jet fan is communicated with one transverse side part of the jet air duct so as to controllably drive air outside the jet device to flow into the jet air duct along a preset direction parallel to the transverse direction and send out from the jet air outlet, so that natural air which flows out of the jet air outlet and is not subjected to heat exchange is mixed with heat exchange air flow sent out of the heat exchange air flow outlet; 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 flow towards the jet air outlet from back to front.
Optionally, the air guiding rib has a shape convexly curved towards a side facing away from the windward side thereof.
Optionally, the flow guiding rib comprises a first straight section extending along the preset direction, an arc-shaped section which is formed by bending and extending a tail end of the first straight section from back to front in a protruding manner towards the preset direction, and a second straight section which extends from the tail end of the arc-shaped section to the jet flow air outlet forward.
Optionally, the depths of the plurality of flow guide ribs arranged in sequence along the preset direction in the front-back direction increase in sequence.
Optionally, an end diversion rib is arranged on the inner side of the end part of the jet flow air outlet, which is adjacent to the jet flow fan, and the end diversion rib is positioned on the upstream side of each diversion rib in the preset direction; and is
The end guide rib has a shape convexly curved toward the windward side thereof.
Optionally, the depth of the end diversion rib in the front-back direction is smaller than the depth of any one diversion rib in the front-back direction.
Optionally, the flow guiding rib comprises a first straight section extending obliquely from back to front along the preset direction, an arc-shaped section extending convexly and curvedly from the tail end of the first straight section from back to front towards the preset direction, and a second straight section extending from the tail end of the arc-shaped section to the jet air outlet forward; and is
The shapes and the sizes of the plurality of the flow guide ribs are the same.
Optionally, an air outlet cavity communicated with the jet air outlet and an air collecting cavity located at the rear side of the air outlet cavity and communicated with the jet fan are defined inside the jet air duct, so that natural air flowing into the jet air duct flows through the air collecting cavity and the air outlet cavity in sequence and then is discharged from the jet air outlet; and is
The air outlet cavity is gradually reduced from back to front, and the flow guide ribs are positioned in the air outlet cavity.
Optionally, the jet fan is disposed at one of the lateral outer sides of the jet air duct and includes a centrifugal fan and a centrifugal volute outside the centrifugal fan,
the centrifugal volute and the jet flow air channel are hermetically communicated through an air guide channel; and is
The air guide channel firstly bends and extends towards the transverse outer side of the jet flow air channel from top to bottom and then bends and extends towards the transverse inner side of the jet flow air channel so as to be smoothly communicated with the centrifugal volute and the jet flow air channel.
According to the utility model discloses a second aspect, the utility model discloses still provide a wall-hanging air conditioning indoor set, it includes:
the shell is provided with a heat exchange airflow outlet which extends along the transverse direction and is used for sending out heat exchange airflow; and
the jet device in any scheme is used for controllably causing airflow outside the jet device to flow into the jet device and send out through the jet air outlet, and mixing the airflow sent out through the jet air outlet with the heat exchange airflow flowing out through the heat exchange airflow outlet.
The utility model discloses a fluidic device has efflux wind channel and efflux fan, and accessible efflux fan initiatively jets into the efflux wind channel with the outside air in, compares the mode that utilizes the passive drainage of negative pressure among the prior art, and this application is through setting up efflux fan initiative efflux, and the efflux amount of wind improves greatly, and the air supply distance increases. And, be equipped with a plurality of water conservancy diversion muscle along horizontal interval arrangement in the efflux wind channel, accessible water conservancy diversion muscle becomes the natural air water conservancy diversion that transversely flows in the efflux wind channel and flows to the efflux air outlet forward by the back, not only guaranteed the normal air supply of the efflux air outlet optional position department of horizontal extension, but also allow the efflux fan setting to remove other positions of efflux wind channel rear side, for example, set up in the horizontal outside in efflux wind channel, the shared volume of whole fluidic device in the front-back direction has been reduced, make the structural configuration of fluidic device be more applicable to wall-hanging air conditioning indoor set, avoid leading to wall-hanging air conditioning indoor set bulky, the problem of heaviness behind the wall-hanging air conditioning indoor set with fluidic device integration.
Furthermore, the water conservancy diversion muscle has towards the shape of deviating from its one side convex bending of windward side, from this, can make the water conservancy diversion muscle have the ability of keeping the air current of the predetermined volume in its one side of windward side, and the air current of this predetermined volume flows to the efflux air outlet under the guide effect of water conservancy diversion muscle to realize the even air-out of efflux air outlet on transversely under the cooperation of a plurality of water conservancy diversion muscle.
Furthermore, a gas collecting cavity and an air outlet cavity are limited in the jet air duct, the gas collecting cavity is communicated with the jet fan, and static pressure can be increased through the gas collecting cavity, so that the airflow flowing into the gas collecting cavity along the transverse direction is corrected to have the trend of flowing into the air outlet cavity forwards at least while large air guiding quantity is ensured, and the airflow flows into the air outlet cavity and then flows to the jet air outlet forwards under the action of the flow guide ribs. And the air outlet cavity is reduced from back to front, so that the air flow flowing resistance is reduced, and the air flow velocity flowing to the jet flow air outlet is improved, thereby improving the air outlet speed of the jet flow device and prolonging the air supply distance of the jet flow device.
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 present invention will be described in detail hereinafter, by way of illustration and not by way of 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 air conditioner indoor unit according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a fluidic device according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a jet duct according to some embodiments of the present invention, taken along a horizontal cross-sectional plane;
FIG. 4 is a schematic enlarged view of portion A of FIG. 3;
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;
fig. 6 is a schematic enlarged view of a portion B in fig. 5;
fig. 7 is a schematic cross-sectional view taken along a longitudinal section extending in a front-to-rear direction of a jet duct according to another embodiment of the present invention;
fig. 8 is a schematic cross-sectional view of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention after a casing is removed;
fig. 10 is a schematic structural view of a wall-mounted air conditioning indoor unit according to another embodiment of the present invention.
Detailed Description
The utility model discloses at first provide a fluidic device that is used for wall-hanging air conditioning indoor set. A wall-mounted indoor air conditioner is an indoor air conditioner that is generally hung on a wall or other support location. Fig. 1 is a schematic structural view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention, and the wall-mounted air conditioner indoor unit 1 according to the present invention includes a casing 10 on which a heat exchange airflow outlet 11 (the heat exchange airflow outlet is not shown in fig. 1, and the heat exchange airflow outlet in fig. 1 is covered by an air deflector) is provided along a lateral direction.
Fig. 2 is a schematic block diagram of a fluidic device according to one embodiment of the present invention. Referring to fig. 2, the jet device 100 of the present invention is applied to the wall-mounted air conditioner indoor unit 1, and includes a jet air duct 40 and a jet fan 50. The front side of the jet air duct 40 is provided with a jet air outlet 41 extending in the transverse direction so as to supply air forward, so that the jet device 100 is suitable for most wall-mounted air conditioning indoor units supplying air forward. The jet fan 50 is communicated with one of the lateral sides of the jet air duct 40 to controllably drive the air outside the jet device 100 to flow into the jet air duct 40 along a preset direction parallel to the lateral direction and to be sent out from the jet air outlet 41, so that the natural air which flows out through the jet air outlet 41 without heat exchange is mixed with the heat exchange air flow sent out through the heat exchange air flow outlet 11. That is to say, accessible efflux fan 50 initiatively jets into efflux wind channel 40 with the outside air in, compares the mode that utilizes the passive drainage of negative pressure among the prior art, and this application is through setting up efflux fan 50 initiative efflux, and the efflux amount of wind improves greatly, and the air supply distance increases. The preset direction is parallel to the transverse direction, and may be a direction from left to right or a direction from right to left.
Because the jet air outlet 41 is located at the front side of the jet air duct 40 and extends along the transverse direction, and the jet fan 50 is communicated with one of the transverse end portions of the jet air duct 40, 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. For this purpose, the inside of the jet air duct 40 is particularly provided with a plurality of guide ribs 42 arranged at intervals in the transverse direction to guide the natural air flowing into the jet air duct 40 in the transverse direction to flow from the rear to the front toward the jet air outlet 41. That is to say, 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 rib 42, so that the heat exchange airflow flowing out from any position of the heat exchange airflow 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 two aspects of outlet air temperature and outlet air quantity. This not only ensures the normal air supply at any position of the transversely extending jet air outlet 41, but also allows the jet fan 50 to be disposed at other positions except the rear side of the jet air duct 40, for example, at the transverse outer side of the jet air duct 40, which reduces the volume occupied by the whole jet device 100 in the front-rear direction, so that the structural layout of the jet device 100 is more suitable for the wall-mounted air conditioner indoor unit 1, and the problem that the wall-mounted air conditioner indoor unit 1 is bulky and heavy due to the integration of the jet device 100 into the wall-mounted air conditioner indoor unit 1 is avoided.
Fig. 3 is a schematic cross-sectional view of a jet duct according to some embodiments of the present invention, taken along a horizontal cross-sectional plane, and fig. 4 is a schematic enlarged view of portion a in fig. 3. The dashed arrows in fig. 3 indicate the direction of airflow into the jet stack. 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, referring to fig. 3 and 4, 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 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 device 100 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.
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 B of fig. 5. The dashed arrows in fig. 5 indicate the direction of airflow into the jet stack. Referring to fig. 5 and 6, in other embodiments, the air guiding rib 42 includes a first straight section 421 extending obliquely from back to front along the predetermined direction, an arc section 422 extending convexly from the end of the first straight section 421 to the predetermined direction from back to front, and a second straight section 423 extending from the end of the arc section 422 to the jet outlet 41. That is, the first flat section 421 and the second flat section 423 form an obtuse angle on the windward side, and the central angle of the arc section 422 is greater than 90 °. The first straight section 421 extends obliquely from back to front along the predetermined direction, so that a predetermined amount of airflow can be retained below the first straight section 421, and at the same time, the predetermined amount of airflow can be guided to the arc-shaped section 422, and the airflow is guided to the jet outlet 41 through the three sections together, thereby reducing the flow resistance of the airflow.
Further, for the air guide ribs 42 having the embodiments shown in fig. 5 and 6, the shapes and sizes of the plurality of air guide ribs 42 may be the same, so that the air flow remaining on the windward side of each air guide rib 42 is substantially the same, thereby ensuring the uniformity of the air outlet of the jet air outlet 41 in the transverse direction.
Further, for the air guide ribs 42 having the embodiment shown in fig. 5 and 6, the depth of each air guide rib 42 extending in the front-rear direction is greater than one third of the total depth of the jet air duct 40 in the front-rear direction and is not more than half of the total depth of the jet air duct 40 in the front-rear direction. If the depth of the diversion rib 42 is too long relative to the jet air duct 40, the air flow flowing to the downstream diversion rib 42 is small, so that the air output of the jet air outlet 41 is reduced in the preset direction. If the depth of the diversion rib 42 is too short relative to the jet flow air duct 40, the amount of airflow remaining on the windward side of the diversion rib 42 is very small, and most of the airflow flows to the other transverse end of the jet flow air duct 40, so that the phenomenon that the air outlet of the jet flow air outlet 41 is seriously uneven in the transverse direction is caused.
In the embodiment shown in fig. 2, the jet flow duct 40 is a horizontally disposed flat duct defining a flat jet chamber therein. In other embodiments, portions of the jet stack 40 may also be tapered. For example, fig. 7 is a schematic cross-sectional view taken along a longitudinal section of a jet duct extending in a fore-and-aft direction according to another embodiment of the present invention. In other 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 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. Therefore, the static pressure can be increased through the air collecting cavity 44, so that the airflow flowing into the air collecting cavity 44 along the transverse direction is corrected to have a trend of flowing into the air outlet cavity 43 at least forwards while ensuring a larger air guiding quantity, and the airflow can flow to the jet flow air outlet 41 from back to front under the action of the flow guiding ribs 42 after flowing into the air outlet cavity 43.
Further, the air outlet cavity 43 tapers from back to front, and the flow guiding rib 42 is located in the air outlet cavity 43. That is, when the air flows through the air outlet chamber 43, the flow area is gradually reduced, and the flow speed is gradually increased, so that the flow speed of the air flow sent by the jet device 100 is increased, and the air supply distance is prolonged.
Specifically, 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 transverse ends of the jet air duct 40, so that the natural air can flow to the other transverse 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 transverse 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 straight 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 obliquely upward from the rear to the front. Thereby, the defined outlet chamber 43 is tapered from the rear to the front. The air duct wall 40a for defining the top of the air cavity 43 extends straightly from back to front, which facilitates the abutting of the jet air duct 40 with the casing 10 of the wall-mounted air conditioning indoor unit 1, thereby enabling the jet air outlet 41 of the jet air duct 40 to be disposed adjacent to the heat exchange air flow outlet 11 after the jet device 100 is integrated in the wall-mounted air conditioning indoor unit 1, and enabling the structure of the wall-mounted air conditioning indoor unit 1 to be more compact.
In some alternative embodiments, the outlet chamber 43 may also have another taper shape that tapers from back to front. For example, the air duct wall 40a for defining the top of the air chamber 43 is obliquely extended downward from the rear to the front, and the air duct wall 40b for defining the bottom of the air chamber 43 is straightly extended from the rear to the front. For another example, the duct wall 40a defining the top of the wind chamber 43 extends obliquely downward from the rear to the front, and the duct wall 40b defining the bottom of the wind chamber 43 extends obliquely upward from the rear to the front.
In some embodiments, the jet fan 50 is disposed laterally outboard of one of the jet air ducts 40. Thereby, the thickness of the jet device 100 in the front-rear direction is reduced, and the width thereof in the lateral direction is made slightly wider, thereby making it more suitable for the wall-mounted air conditioning indoor unit 1. When the jet device 100 is integrated in the wall-mounted air conditioning indoor unit 1, the thickness of the wall-mounted air conditioning indoor unit 1 in the front-rear direction is not increased, the width of the wall-mounted air conditioning indoor unit 1 in the transverse direction is slightly longer than that of a conventional hanging machine, and the wall-mounted air conditioning indoor unit 1 is not different from the conventional hanging machine in other aspects and is still very light.
Further, the jet fan 50 may include 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 passage 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.
The utility model also provides a wall-hanging air conditioning indoor unit 1, it includes casing 10, offers on the casing 10 along transversely extending in order to be used for seeing off the heat transfer air current export 11. Fig. 8 is a schematic cross-sectional view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention, and fig. 9 is a schematic structural view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention with a casing thereof hidden. The interior of the cabinet 10 may be provided with a heat exchanger 20 and a fan 30, and the heat exchanger 20 may exchange heat with an air flow passing therethrough to generate a heat exchange air flow. 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. The top of the housing 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 housing 10 through the main air inlet 12. The casing 10 may include a cover 13 at a rear side and a front panel 14 at a front side, and two end panels 16 at lateral sides, the cover 13, the front panel 14 and the two end panels 16 being coupled in a mating manner.
In particular, the wall-mounted air conditioning indoor unit 1 further includes the fluidic device 100 described in any of the above embodiments. The jet device 100 is used for controllably causing the air flow outside the wall-mounted air conditioner to flow into the wall-mounted air conditioner and to be sent out through the jet air outlet 41, and mixing the air flow sent out through the jet air outlet 41 with the heat exchange air flow flowing out through the heat exchange air flow outlet 11, so that softer mixed air is formed, the air outlet of the wall-mounted air conditioner indoor unit 1 is prevented from being too cold or too hot, and the comfort experience of the wall-mounted air conditioner indoor unit is improved.
In some embodiments, the heat exchange airflow outlet 11 is a strip-shaped outlet which is opened at the bottom of the front side of the casing 10 and extends along the transverse direction of the casing 10, and the jet air outlet 41 of the jet air duct 40 may be disposed adjacent to the heat exchange airflow outlet 11, so as to facilitate better mixing of the heat exchange airflow sent from the heat exchange airflow outlet 11 and the natural air sent from the jet air outlet 41, thereby ensuring softer air outlet of the wall-mounted air conditioning indoor unit 1. The heat exchange airflow outlet 11 and the jet outlet 41 extend substantially the same length in the transverse direction to further enhance the mixing effect between the two airflows delivered from the two outlets.
Further, the jet fan 50 of the jet device 100 is disposed at one of the lateral sides in the cabinet 10. 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.
In some embodiments, a lateral side plate of the casing 10 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.
In some embodiments, referring to fig. 1, the jet stack 40 is disposed adjacent to the cabinet 10 at the bottom of the cabinet 10. That is, the jet air duct 40 is disposed at the bottom of the casing 10 and abuts against the bottom surface of the casing 10, so that the heat exchange air flow outlet 11 at the bottom of the front side of the casing 10 is disposed adjacent to the jet air outlet 41 at the front side of the jet air duct 40.
Fig. 10 is a schematic structural view of a wall-mounted air conditioning indoor unit according to another embodiment of the present invention. In other embodiments, the jet air duct 40 is disposed below the casing 10 at a distance from the casing 10 to form a guide air duct 80 between the heat exchange air flow outlet 11 and the jet air outlet 41. That is to say, the both sides in drainage wind channel are heat transfer air outlet 11 and efflux air outlet 41 respectively, along with the air supply of heat transfer air outlet 11 and efflux air outlet 41, the both sides in drainage wind channel 80 all can produce the negative pressure, consequently, the air flow volume of introducing in drainage wind channel 80 under the negative pressure effect of both sides is bigger, the natural air that introduces through drainage wind channel 80 mixes with the natural air that sends out through efflux air outlet 41 and the heat transfer air that sends out through heat transfer air outlet 11, the whole induced air volume and the whole air supply volume of wall-hanging air conditioning indoor set have further been improved.
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 outer sides of the frame 70, so that the arrangement between the jet fan 50 and other structures inside the cabinet 10 is more compact, thereby reducing the volume of the wall-mounted air conditioning indoor unit 1. Specifically, the jet fan 50 may be fixedly supported on the frame 70, thereby avoiding additional arrangement of other fan support structures and simplifying the structure of the wall-mounted air conditioner indoor unit 1.
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 fan 30 is a cross flow fan having a rotation axis extending in a lateral direction of the casing 10, and the air supply amount is large and the air supply range in the lateral direction is large.
It should be further understood by those skilled in the art that the terms "upper", "lower", "front", "rear", and the like used in the embodiments of the present invention to indicate the orientation or the positional relationship are based on the actual use state of the fluidic device 100 applied to 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 must have a specific orientation, be configured and operated in a specific orientation, and therefore, should not be interpreted 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 shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. The utility model provides a fluidic device for machine in wall-hanging air conditioning, machine in wall-hanging air conditioning includes the casing, set up on the casing along transversely extending in order to be used for seeing off the heat transfer air current export of heat transfer air current, a serial communication port, fluidic device includes:
the front side of the jet air duct is provided with a jet air outlet extending along the transverse direction; and
the jet fan is communicated with one transverse side part of the jet air duct so as to controllably drive air outside the jet device to flow into the jet air duct along a preset direction parallel to the transverse direction and send out from the jet air outlet, so that natural air which flows out of the jet air outlet and is not subjected to heat exchange is mixed with heat exchange air flow sent out of the heat exchange air flow outlet; 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 flow towards the jet air outlet from back to front.
2. The fluidic device of claim 1,
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.
3. The fluidic device of claim 2,
the flow guiding rib comprises a first straight section extending along the preset direction, an arc-shaped section which is formed by protruding and bending the tail end of the first straight section from back to front towards the preset direction, and a second straight section which is formed by extending the tail end of the arc-shaped section forwards to the jet flow air outlet.
4. The fluidic device of claim 3,
the depth of the plurality of flow guide ribs arranged in sequence along the preset direction in the front-back direction is increased in sequence.
5. The fluidic device of claim 2,
end diversion ribs are arranged on the inner side of the end part of the jet flow air outlet, which is adjacent to the jet flow fan, and the end diversion ribs are positioned on the upstream side of each diversion rib in the preset direction; and is
The end guide rib has a shape convexly curved toward the windward side thereof.
6. The fluidic device of claim 5,
the depth of the end diversion rib in the front-back direction is smaller than that of any diversion rib in the front-back direction.
7. The fluidic device of claim 2,
the flow guiding rib comprises a first straight section obliquely extending from back to front along the preset direction, an arc-shaped section convexly and convexly extending from the tail end of the first straight section from back to front towards the preset direction, and a second straight section extending from the tail end of the arc-shaped section to the jet air outlet forwards; and is
The shapes and the sizes of the plurality of the flow guide ribs are the same.
8. The fluidic device of claim 1,
an air outlet cavity communicated with the jet air outlet and an air 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 air collecting cavity and the air outlet cavity in sequence and then is sent out from the jet air outlet; and is
The air outlet cavity is gradually reduced from back to front, and the flow guide ribs are positioned in the air outlet cavity.
9. The fluidic device of claim 1,
the jet fan is arranged at one of the transverse outer sides of the jet air duct and comprises a centrifugal fan and a centrifugal volute positioned outside the centrifugal fan,
the centrifugal volute and the jet flow air channel are hermetically communicated through an air guide channel; and is
The air guide channel firstly bends and extends towards the transverse outer side of the jet flow air channel from top to bottom and then bends and extends towards the transverse inner side of the jet flow air channel so as to be smoothly communicated with the centrifugal volute and the jet flow air channel.
10. An indoor unit of a wall-mounted air conditioner, comprising:
the shell is provided with a heat exchange airflow outlet which extends along the transverse direction and is used for sending out heat exchange airflow; and
a fluidic device according to any one of claims 1 to 9, adapted to controllably cause a flow of gas from outside the fluidic device to flow into the fluidic device and exit the fluidic device through the fluidic outlet port, and to mix the flow of gas exiting the fluidic outlet port with a flow of heat exchange gas exiting the heat exchange gas outlet port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021738276.7U CN212431089U (en) | 2020-08-19 | 2020-08-19 | Jet device for wall-mounted air conditioner indoor unit and wall-mounted air conditioner indoor unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021738276.7U CN212431089U (en) | 2020-08-19 | 2020-08-19 | Jet device for wall-mounted air conditioner indoor unit and wall-mounted air conditioner indoor unit |
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| CN212431089U true CN212431089U (en) | 2021-01-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022037722A1 (en) * | 2020-08-19 | 2022-02-24 | 青岛海尔空调器有限总公司 | Jet device for wall-mounted air conditioner indoor unit, and wall-mounted air conditioner indoor unit |
| WO2023065566A1 (en) * | 2021-05-20 | 2023-04-27 | 青岛海尔空调器有限总公司 | Wall-mounted fresh-air air conditioner indoor unit and air conditioner |
| WO2023065693A1 (en) * | 2021-10-20 | 2023-04-27 | 青岛海尔空调器有限总公司 | Fresh air fan and air-conditioner indoor unit |
-
2020
- 2020-08-19 CN CN202021738276.7U patent/CN212431089U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022037722A1 (en) * | 2020-08-19 | 2022-02-24 | 青岛海尔空调器有限总公司 | Jet device for wall-mounted air conditioner indoor unit, and wall-mounted air conditioner indoor unit |
| WO2023065566A1 (en) * | 2021-05-20 | 2023-04-27 | 青岛海尔空调器有限总公司 | Wall-mounted fresh-air air conditioner indoor unit and air conditioner |
| WO2023065693A1 (en) * | 2021-10-20 | 2023-04-27 | 青岛海尔空调器有限总公司 | Fresh air fan and air-conditioner indoor unit |
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