CN213577782U - Jet device for cabinet air conditioner indoor unit and cabinet air conditioner indoor unit - Google Patents

Abstract

The utility model relates to a machine in fluidic device and cabinet air conditioner for machine in cabinet air conditioner, fluidic device includes: the jet flow air duct extends along the vertical direction, a vertically extending cavity is defined in the jet flow air duct, and a strip-shaped jet flow air outlet extending along the vertical direction is formed in one side surface of the jet flow air duct; and the jet fan is arranged at the bottom or below the jet air duct and is communicated with the cavity fluid so as to controllably drive the airflow outside the jet device to flow into the cavity and send out through the jet air outlet, thereby mixing with the heat exchange airflow flowing out from the heat exchange airflow outlet. The inside in efflux wind channel is equipped with at least one wind channel baffle for divide into the cavity at least two mutually independent and all with the air-out wind channel of efflux fan intercommunication, every air-out wind channel all is linked together with the air-out district section that efflux air outlet corresponds in the vertical direction, at least one wind channel baffle is arranged into and is made every air-out district section of efflux air outlet send out the air current velocity of flow the homogeneous phase.

Description

Jet device for cabinet air conditioner indoor unit and cabinet air conditioner indoor unit

Technical Field

The utility model relates to an air conditioning technology field especially relates to a fluidic device and cabinet air conditioner indoor set for cabinet air conditioner indoor set.

Background

At present, the air outlets of most indoor cabinet air conditioners in the market are strip-shaped air outlets extending along the vertical direction so as to obtain a larger air supply range in the vertical direction. The applicant of the application has designed a double-through-flow air conditioner indoor unit, wherein two sets of through-flow fans are arranged in a shell, air inlets corresponding to the two sets of through-flow fans are respectively arranged at two side parts of the shell, and an air outlet is formed at the front part of the shell so as to improve the air supply efficiency. In addition, in order to realize the comfort of air supply, an air induction port is formed between the two air inlets and the rear part of the shell, a through air duct which is through from front to back is formed on the shell and/or in the shell, one end of the through air duct is communicated with the air outlet, and the other end of the through air duct is communicated with the air induction port. When the air conditioner operates, the air outlet of the air outlet can form negative pressure in the through air channel, indoor non-heat exchange air can be introduced into the through air channel through the air induction port under the action of the negative pressure, and therefore the non-heat exchange air is mixed with the heat exchange air at the air outlet and then sent to the indoor space, and the purpose of comfortable air supply is achieved.

However, the non-heat exchange air is passively introduced into the through air duct under the action of negative pressure generated by the outlet air, the induced air volume is relatively small, and the induced air volume is easily influenced by various factors such as the rotating speed of the cross flow fan, the size of the induced air opening, the shape of the through air duct and the like, is very unstable and is not easy to control or adjust.

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 one kind and is applicable to the fluidic device that can take the initiative of cabinet air conditioner indoor set, in order to improve the induced air volume that has this fluidic device's cabinet air conditioner indoor set.

Another object of the first aspect of the present invention is to improve the uniformity of the air-out of the jet device in the vertical direction.

The utility model discloses a further purpose of first aspect is to reduce the air current flow resistance, improve fluidic device's air-out speed.

The utility model discloses the purpose of the second aspect provides a cabinet air conditioner indoor set with above-mentioned fluidic device.

According to the utility model discloses an aspect, the utility model provides a fluidic device for indoor unit of cabinet air conditioner, indoor unit of cabinet air conditioner has the heat transfer air current export along vertical extension, fluidic device includes:

the jet flow air duct extends along the vertical direction, a vertically extending cavity is defined in the jet flow air duct, and a strip-shaped jet flow air outlet extending along the vertical direction is formed in one side surface of the jet flow air duct; and

the jet flow fan is arranged at the bottom or below the jet flow air duct and is communicated with the cavity in a fluid mode so as to controllably drive airflow outside the jet flow device to flow into the cavity and send the airflow out through the jet flow air outlet, and therefore the airflow is mixed with the heat exchange airflow flowing out of the heat exchange airflow outlet; wherein

The jet flow air channel is internally provided with at least one air channel partition plate which is used for dividing the cavity into at least two air outlet channels which are mutually independent and are communicated with the jet flow fan, each air outlet channel is communicated with the corresponding air outlet section of the jet flow air outlet in the vertical direction, and the at least one air channel partition plate is arranged to ensure that the flow velocity of air flow sent out from each air outlet section of the jet flow air outlet is the same.

Optionally, the at least one duct partition is arranged such that the flow area of the airflow inlet of each of the outlet ducts is the same, and the lengths of at least two outlet sections arranged in sequence from bottom to top are gradually reduced.

Optionally, the jet air outlet is formed on a front side surface of the jet air duct;

at least one wind channel baffle will the cavity is separated into at least two along the fore-and-aft direction range the air-out wind channel, and by at least two of arranging in proper order backward the air-out wind channel respectively with from the supreme at least two of arranging in proper order down the air-out district section one-to-one ground intercommunication.

Optionally, each air duct partition plate includes a straight section extending vertically upward from the bottom of the jet air duct and a curved section extending from the end of the straight section to the jet air outlet in a forward bending manner, where the curved section meets the jet air outlet to form a junction line, and the junction line forms a boundary line of two adjacent air outlet sections of the jet air outlet.

Optionally, an air deflector is arranged at the top of the air outlet duct at the rearmost side, and the air deflector is bent forward from the rear wall of the jet air duct and extends to the top edge of the jet air outlet.

Optionally, the curved sections of the air deflector and each air duct baffle are each an arc shape convexly curved upward.

Optionally, the jet fan is a centrifugal fan, so as to controllably drive air outside the jet device to horizontally flow into the centrifugal fan and flow into the jet air duct from bottom to top.

According to the utility model discloses a second aspect, the utility model provides a cabinet air conditioner indoor unit, it includes:

the shell is provided with a heat exchange airflow outlet used for conveying heat exchange airflow to the indoor space; 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.

Optionally, a through channel penetrating the casing from front to back, and a first heat exchange air duct and a second heat exchange air duct located at two lateral sides of the through channel and independent from each other are formed inside the casing, the first heat exchange air duct and the second heat exchange air duct both have heat exchange airflow outlets, and a heat exchanger and a fan are arranged in each of the first heat exchange air duct and the second heat exchange air duct, so that the fan can drive the heat exchange airflow in the first heat exchange air duct and the second heat exchange air duct to be sent out through the heat exchange airflow outlets of the first heat exchange air duct and the second heat exchange air duct;

the jet air duct, the first heat exchange air duct and the second heat exchange air duct are arranged in the penetrating channel independently, so that natural air which flows out through the jet air duct and is not subjected to heat exchange is mixed with heat exchange air flow sent out through the first heat exchange air duct and the second heat exchange air duct.

Optionally, the rear section of the through channel tapers from rear to front; and is

The jet air duct is arranged at the rear section of the through channel, and the shape of the jet air duct is matched with that of the rear section of the through channel.

The utility model discloses a fluidic device is used for having the cabinet air conditioner indoor set of the heat transfer air outlet of vertical extension, this fluidic device has the efflux wind channel that extends along vertical direction and sets up the efflux fan in efflux wind channel bottom or below, accessible efflux fan initiatively jets into the efflux wind channel with the outside air current of fluidic device in, and flow through the efflux air outlet, thereby be convenient for and mix from the heat transfer air current that the heat transfer air outlet flows, the machine air-out supercooling or overheat in the cabinet air conditioner has been avoided, the travelling comfort experience of it has been improved. Compare the mode that utilizes the passive drainage of negative pressure among the prior art, the utility model discloses a set up efflux fan initiative efflux, the efflux amount of wind improves greatly. And the jet flow fan is positioned at the bottom or below the jet flow air duct, namely the jet flow fan and the jet flow air duct are vertically arranged or arrayed, so that the size of the jet flow device in the transverse direction or the front-back direction is not increased, the jet flow device is more suitable for being integrated in a cabinet air conditioner indoor unit with higher vertical height and smaller sizes in other directions, and the cabinet air conditioner indoor unit is prevented from being large in size or complex in structure.

Simultaneously, this application still sets up at least one wind channel baffle in the efflux wind channel for two at least air-out wind channels are separated into with the cavity in the efflux wind channel, and every air-out wind channel all communicates with a corresponding air-out district section of efflux air outlet in vertical direction. From this, the accessible carries out reasonable arrangement to the position of wind channel baffle for the air current velocity of flow of every air-out district section of efflux air outlet is the same, has realized the even air-out of efflux air outlet in vertical direction, has solved the air current and has flowed into whole efflux wind channel from bottom to top and probably leads to the uneven technical problem of efflux air-out of efflux air outlet.

Furthermore, each air duct partition plate comprises a straight section extending vertically upwards and a bent section extending to the jet flow air outlet from the tail end of the straight section in a forward bending mode, airflow flowing from bottom to top in the corresponding air outlet air duct is guided to the jet flow air outlet in a horizontal flow mode through the bent section, the change of the flowing direction of the airflow is buffered, the flowing resistance of the airflow is reduced, and therefore the air outlet speed of the jet flow device is improved.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the 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 fluidic device for a cabinet air conditioner indoor unit according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a fluidic device according to an embodiment of the present invention;

FIG. 3 is a schematic enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural view of a cabinet air conditioner indoor unit according to an embodiment of the present invention;

figure 5 is a schematic cross-sectional view of a cabinet air conditioner indoor unit according to one embodiment of the present invention;

fig. 6 is a schematic exploded view of a cabinet air conditioner indoor unit according to an embodiment of the present invention.

Detailed Description

The utility model provides an at first, this fluidic device is applied to machine in the cabinet air conditioner, and this machine in the cabinet air conditioner has along the heat transfer air current export of vertical extension for to the indoor heat transfer air current of carrying behind the indoor heat exchanger heat transfer.

Fig. 1 is a schematic structural view of a fluidic device for a cabinet air conditioner indoor unit according to an embodiment of the present invention, and fig. 2 is a schematic cross-sectional view of the fluidic device according to an embodiment of the present invention. Referring to fig. 1 and 2, the fluidic device 1 of the present invention may include a fluidic air duct 10 and a fluidic fan 20.

The jet air duct 10 extends in the vertical direction, a vertically extending cavity is defined in the jet air duct 10, and a strip-shaped jet air outlet 12 extending in the vertical direction is formed in one side surface of the jet air duct 10. The jet fan 20 is disposed at the bottom or below the jet air duct 10 and is in fluid communication with the cavity in the jet air duct 10, so as to controllably drive the air flow outside the jet device 1 to flow into the cavity in the jet air duct 10 and to be discharged through the jet air outlet 12, so as to mix with the heat exchange air flow flowing out from the heat exchange air flow outlet of the cabinet air conditioner indoor unit.

The utility model discloses a fluidic device 1 is used for having the cabinet air conditioner indoor set of the heat transfer air current export of vertical extension, this fluidic device 1 has the efflux wind channel 10 that extends along vertical direction and sets up at efflux wind channel 10 bottom or the efflux fan 20 of below, accessible efflux fan 20 initiatively jets into efflux wind channel 10 with the outside air current of fluidic device 1 in, and flow out through efflux air outlet 12, thereby be convenient for and the heat transfer air current who flows from the heat transfer air current export mutually mix, the machine air-out supercooling or overheat in the cabinet air conditioner has been avoided, the travelling comfort experience is improved. Compare the mode that utilizes the passive drainage of negative pressure among the prior art, the utility model discloses a set up efflux fan 20 initiative efflux, the efflux amount of wind improves greatly, and the accessible adjusts the specific amount of wind in efflux wind channel 10 is got into in efflux fan 20's rotational speed control, and this amount of wind size does not receive the influence of other external factors, controls accurate, stable.

Meanwhile, the jet fan 20 is positioned at the bottom or below the jet air duct 10, that is, the jet fan 20 and the jet air duct 10 are vertically arranged or arrayed, so that the size of the jet device 1 in the transverse direction or the front-back direction is not increased, the jet device 1 is more suitable for being integrated in a cabinet air-conditioning indoor unit with higher vertical height and smaller size in other directions, and the cabinet air-conditioning indoor unit is prevented from being bulky or complex in structure. That is to say, the fluidic device 1 of the present application makes full use of the advantage of the cabinet air conditioner indoor unit in the height direction, so that the layout between the fluidic device 1 and other structures of the cabinet air conditioner indoor unit is more compact, and the problems of the cabinet air conditioner indoor unit being too large in size and too much in occupied space caused by applying the fluidic device 1 to the cabinet air conditioner indoor unit are avoided.

Because the utility model discloses a fluidic device 1 is applied to the cabinet air conditioner indoor set that has the heat transfer air outlet of vertical extension, therefore, the air outlet of the bar of vertical extension is designed into to fluidic device 1's efflux air outlet 12, so that with the heat transfer air outlet phase-match, make the heat transfer air current that flows everywhere from the heat transfer air outlet can both mix with the air current that does not exchange heat that flows from fluidic air outlet 12, thereby make the air-out of each department of cabinet air conditioner indoor set all softer, user's use experience has been improved. Specifically, the jet outlet 12 may be aligned with the heat exchange airflow outlet in the vertical direction, so as to achieve better mixing effect of the two airflows flowing out from the two outlets.

However, the jet air outlet 12 is a vertically extending strip-shaped air outlet, the jet fan 20 is disposed at the bottom or below the jet air duct 10, and the air flow enters the jet air duct 20 from bottom to top and is perpendicular to the air outlet direction of the jet air outlet 12, so how to ensure that the jet air outlet 12 sends out a high flow rate of air flow and how to achieve uniform air outlet of the jet air outlet 12 in the vertical direction are design difficulties and design points of the present application.

For this purpose, at least one air duct partition plate 11 is disposed inside the jet air duct 10, and is configured to partition a cavity inside the jet air duct 10 into at least two air outlet ducts 13 that are independent from each other and are both communicated with the jet fan 20, each air outlet duct 13 is communicated with a corresponding air outlet section of the jet air outlet 12 in the vertical direction, and the at least one air duct partition plate 11 is arranged to make the flow rate of the air flow sent out from each air outlet section of the jet air outlet 12 be the same. That is to say, the position of the air duct partition plate 11 can be reasonably arranged, so that the air flow velocity of each air outlet section of the jet air outlet 12 is the same, uniform air outlet of the jet air outlet 12 in the vertical direction is realized, and the technical problem that the air flow flows into the whole jet air duct from bottom to top and the air outlet of the jet air outlet is uneven is solved.

In some embodiments, the at least one duct partition 11 is arranged such that the flow area of the airflow inlet of each air outlet duct 13 is the same, and the lengths of at least two air outlet sections arranged from bottom to top are gradually reduced. Since the airflow flows from bottom to top to the jet flow duct 10, the airflow velocity at the lower portion inside the jet flow duct 10 is high, and the airflow velocity is slow as it goes upward. Setting the flow areas of the airflow inlets of the air outlet channels 13 to be the same ensures that the airflow rates entering each air outlet channel 13 from the jet fan 20 in unit time are substantially the same. Meanwhile, the lengths of at least two air outlet sections which are sequentially arranged from bottom to top are set to be gradually reduced, so that the length of the air outlet section at the lowermost part is the largest, and the length of the air outlet section at the uppermost part is the smallest, therefore, the airflow with the highest flow velocity flows to the air outlet section with the largest length, and the airflow flow velocity is uniformly shared in the air outlet section with the largest length; the air flow with the slowest air flow velocity flows to the air outlet section with the smallest length, and the air flow velocity is evenly shared in the air outlet section with the smallest length. Therefore, no matter which air outlet section, the air flow velocity difference of the air outlet area of unit length is almost the same, and the air outlet velocity of the whole jet flow air outlet 12 is balanced.

The heat exchange airflow outlet is usually located at the front side of the cabinet air conditioner indoor unit so as to supply air towards the front side. Therefore, in some embodiments, the jet outlet 12 is formed on the front side 10a of the jet duct 10 so as to be mixed with the heat exchange air flowing out from the heat exchange air flow outlet.

Further, the cavity in the jet air duct 10 is divided into at least two air outlet ducts 13 arranged in the front-back direction by the at least one air duct partition plate, and the at least two air outlet ducts 13 sequentially arranged from front to back are respectively communicated with the at least two air outlet sections sequentially arranged from bottom to top in a one-to-one correspondence manner, so that the layout of the air duct partition plate is simplified.

Specifically, in one embodiment, the number of the air duct partition plates 11 is two, and the two air duct partition plates 11 partition the cavity in the jet air duct 10 into three air outlet air ducts 11 sequentially arranged in the front-back direction. Accordingly, the jet outlet 12 is divided into three outlet sections arranged in the vertical direction, wherein the lengths of the bottom outlet section 121 at the lowest position, the middle outlet section 122 at the middle position and the top outlet section 123 at the highest position are sequentially reduced. The air outlet duct 13 at the foremost side is communicated with the bottom air outlet section 121, the air outlet duct 13 at the rearmost side is communicated with the top air outlet section 123, and the remaining middle air outlet section 122 of the air outlet duct 13 in the middle is communicated.

In other embodiments, the number of the duct partition 11 may also be one or more than three.

Fig. 3 is a schematic enlarged view of a portion a in fig. 2. In some embodiments, each duct partition 11 includes a straight section 111 extending vertically upward from the bottom of the jet duct 10 and a curved section 112 extending from the end of the straight section 111 to the jet outlet 12, where the curved section 112 meets the jet outlet 12 to form a cross-over line 15, and the cross-over line 15 forms a cross-over line of two adjacent outlet sections of the jet outlet 12. That is, each air outlet section of the jet flow outlet 12 is separated by the connecting line 15 between the air duct partition 11 and the jet flow outlet 12. Therefore, the air outlet sections of the jet air outlet 12 can be divided by arranging the air duct partition plate 11. Moreover, the air flow flowing from bottom to top in the corresponding air outlet duct 13 can be guided to horizontally flow to the jet air outlet 12 through the bending section 112, so that the change of the air flow direction is buffered, the resistance of the air flow flowing is reduced, and the air outlet speed of the jet device 1 is increased.

Specifically, the number of the air duct partition plates 11 is plural, and the height of the straight section 111 of each of the plural air duct partition plates 11 arranged in sequence in the front-rear direction extending in the vertical direction is increased in sequence, so that the curved section 112 of each air duct partition plate 11 is curved forward and extends to the jet outlet 12, thereby forming plural air outlet ducts 13 independent from each other without generating structural interference with other air duct partition plates 11.

In some embodiments, the air deflector 16 is disposed at the top of the air outlet duct 13 at the rearmost side, and the air deflector 16 is bent forward from the rear wall of the jet air duct 10 and extends to the top edge of the jet air outlet 12, so that the air deflector 16 can guide the air flow in the air outlet duct 13 at the rearmost side, and guide the air flow flowing from bottom to top in the air outlet duct 13 to horizontally flow toward the jet air outlet 12, thereby buffering the change of the air flow direction, reducing the resistance of the air flow, and preventing the flow velocity of the air flow sent out from the top air outlet section 123 of the jet air outlet 12 from being slowed down due to the resistance.

Further, the air deflector 16 and the curved section 112 of each duct partition 11 are both arc-shaped and convexly curved upwards, so that the resistance to the airflow is further reduced, and the airflow speed is further increased.

In some embodiments, the jet fan 20 may be a centrifugal fan to controllably drive air outside the jet device 1 to flow horizontally into the centrifugal fan and from bottom to top into the jet duct 10. In other embodiments, the jet fan 20 may also be an axial fan, and the centrifugal fan and the axial fan have small volume and long range, and are very suitable for sucking air from the side and supplying air upwards.

In some embodiments, the jet fan 20 may be disposed below the jet stack 10 with fluid communication between the bottom of the jet stack 10 and the top of the jet fan 20 via the volute stack 30. Specifically, the air inlet of the jet air duct 10 is disposed at the bottom thereof, the airflow outlet of the jet fan 20 is disposed at the top thereof, and a volute air duct 30 is hermetically connected between the air inlet of the jet air duct 10 and the airflow outlet of the jet fan 20, so as to guide the airflow sent by the jet fan 20 to the jet air duct 10. In general, in order to obtain a better air supply range, the heat exchange airflow outlet of the cabinet air conditioner indoor unit has a certain height. In order to avoid the air outlet 12 of the jet air duct 10 from being too low, a volute air duct 30 is provided between the bottom of the jet air duct 10 and the top of the jet fan 20, so that the jet device 1 can be better matched with other structures of the cabinet air conditioner indoor unit.

Further, the height of the volute duct 30 in the vertical direction is set to make the air outlet 12 of the jet duct 10 and the heat exchange airflow outlet of the cabinet air conditioner indoor unit have the same height, so that the airflow sent out from the air outlet 12 and the heat exchange airflow flowing out from the heat exchange airflow outlet are better mixed. When the jet device 1 is integrated in the cabinet air-conditioning indoor unit, both the volute air duct 30 and the jet fan 20 can be located in the casing of the cabinet air-conditioning indoor unit.

The present application further provides a cabinet air-conditioning indoor unit, fig. 4 is a schematic structural diagram of the cabinet air-conditioning indoor unit according to an embodiment of the present invention, the cabinet air-conditioning indoor unit 100 of the present invention includes a casing 40, and the casing 40 has a heat exchange airflow outlet for conveying heat exchange airflow indoors. The number of the heat exchange gas flow outlets can be one, and two or more. The casing 40 may be provided therein with a heat exchange device for exchanging heat with an air flow to generate a heat exchange air flow, and an air supply fan for driving the air flow to enter through an air inlet of the casing 40 and to be sent out through a heat exchange air flow outlet, where the air supply fan may be a cross flow fan, and the number of the cross flow fans may be one or two.

In particular, the cabinet air-conditioning indoor unit 100 further comprises a fluidic device 1 according to any of the embodiments described above. The jet device 1 is used for controllably causing the air flow outside the cabinet air conditioner to flow into the cabinet air conditioner and to be sent out through the jet air outlet 12, and mixing the air flow sent out through the jet air outlet 12 with the heat exchange air flow flowing out through the heat exchange air flow outlet, so that the air outlet of the cabinet air conditioner indoor unit 100 is prevented from being too cold or too hot, and the air outlet softness and the user comfort experience are improved.

The cabinet air-conditioning indoor unit 100 with the jet device 1 has large airflow without heat exchange and long air supply distance, and improves the whole air supply amount and air supply range of the cabinet air-conditioning indoor unit 100. In addition, the adjustable range of the airflow which is injected by the jet device 1 and is not subjected to heat exchange is large, and various different use requirements of users are met.

Fig. 5 is a schematic cross-sectional view of a cabinet type air-conditioning indoor unit according to an embodiment of the present invention, and fig. 6 is a schematic exploded view of the cabinet type air-conditioning indoor unit according to an embodiment of the present invention. In some embodiments, a through channel 41 penetrating the casing 40 from front to back, and a first heat exchange air duct 42 and a second heat exchange air duct 43 located at two lateral sides of the through channel 41 and independent from each other are formed inside the casing 40, the first heat exchange air duct 42 and the second heat exchange air duct 43 both have heat exchange airflow outlets, and a heat exchanger and a fan are disposed in the first heat exchange air duct 42 and the second heat exchange air duct 43, so that the heat exchange airflow in the first heat exchange air duct 42 and the heat exchange airflow in the second heat exchange air duct 43 are sent out through their own heat exchange airflow outlets by the fan. Specifically, two separate volute tongue assemblies 46 may be disposed inside the casing 40 to define, together with the casing 40, the first heat exchange air duct 42 and the second heat exchange air duct 43 that are independent of each other. The air paths of the first heat exchange air duct 42 and the second heat exchange air duct 43 are independent from each other, the first heat exchange air duct 42 has a first heat exchange airflow outlet 421, a first heat exchanger 51 and a first fan 61 are arranged in the first heat exchange air duct 42, the first heat exchanger 51 is used for exchanging heat with the airflow in the first heat exchange air duct 42 to generate heat exchange airflow, and the first fan 61 is used for promoting the heat exchange airflow to flow to the first heat exchange airflow outlet 421 and flow out through the first heat exchange airflow outlet 421. Similarly, the second heat exchange air duct 43 has a second heat exchange air outlet 431, and the second heat exchanger 52 and the second fan 62 are disposed therein. The second heat exchanger 52 is configured to exchange heat with the air flow in the second heat exchange air duct 43 to generate a heat exchange air flow, and the second fan 62 is configured to promote the heat exchange air flow to the second heat exchange air flow outlet 431 and flow out through the second heat exchange air flow outlet 431.

The jet air duct 10 and the first heat exchange air duct 42 and the second heat exchange air duct 43 are independently disposed inside the through channel 41, so that the natural air flowing out through the jet air duct 10 without heat exchange is mixed with the heat exchange air flow sent out through the first heat exchange air duct 42 and the second heat exchange air duct 43. That is, the jet air duct 10 is independent from the first heat exchange air duct 42 and the second heat exchange air duct 43, and the air paths of the three air ducts are independent from each other and do not affect each other.

In some embodiments, the heat exchange airflow outlets of the first heat exchange air duct 42 and the second heat exchange air duct 43 face the front side of the casing 40, and the jet air outlet 12 is opened at the front side of the jet air duct 10. That is, the three air ducts all blow air toward the front side of the cabinet 40 so that the heat exchange air flows flowing out of the two heat exchange air ducts are mixed with the natural air flowing out of the jet air duct 10 without heat exchange at the front side or front portion of the cabinet 40. And, set up efflux wind channel 10 in being in the through channel 41 between two heat transfer wind channels, can make efflux wind channel 10 be in between two heat transfer wind channels to make the natural air that efflux wind channel 10 sent out be in between two strands of heat transfer air flows, and then make the mixing between natural air and the heat transfer air flow more even. It should be noted that the front side of the casing 40 of the present invention may include the front side of the casing 40, and may also include the inclined front side of the casing 40, as long as the orientation of the heat exchange airflow outlet has a forward direction component to be able to blow air toward the front side of the casing 40.

In some embodiments, the rear section of the through channel 41 tapers from back to front. The jet air duct 10 is arranged at the rear section of the through channel 41, and the jet air duct 10 is adapted to the shape of the rear section of the through channel 41. On one hand, the structural layout between the jet air duct 10 and the through channel 41 can be more compact to reduce the volume of the cabinet air conditioner indoor unit 1, and on the other hand, the flow guide cavity 11 which is gradually reduced from back to front is conveniently formed in the jet air duct 10, so that the natural air can rapidly flow out from the jet air outlet 12.

Further, the cross section of the jet flow duct 10 may be a trapezoid that tapers from rear to front, and the rear facing surface 10b of the jet flow duct 10 is flush with the rear facing surface 40a of the cabinet 40. Therefore, the appearance integrity and the appearance of the cabinet air-conditioner indoor unit 1 can be improved. Further, the cross-section of the jet duct 10 may be an isosceles trapezoid.

In some embodiments, the two lateral duct walls 10c of the jet duct 10 are spaced apart from the two lateral side walls 41a of the through channel 41, respectively, to form one air inducing channel 44 at each of the two lateral outer sides of the jet duct 10. When the fans in the first heat exchange air duct 42 and the second heat exchange air duct 43 are operated and/or when the jet fan 20 is operated, a certain negative pressure is generated in the front of the induced air passage 44. Under the action of the negative pressure, the air in the space where the cabinet air conditioner indoor unit 1 is located flows into the induced air channel 44, and is discharged through the front opening of the induced air channel 44, and is mixed with the natural air which flows out through the jet air duct 10 and is not subjected to heat exchange and the heat exchange air flow which is discharged through the first heat exchange air duct 42 and the second heat exchange air duct 43. Therefore, the amount of natural air which is introduced into the cabinet air conditioner indoor unit 1 and is not subjected to heat exchange is increased, and the whole air supply amount is increased.

In some alternative embodiments, the two lateral duct walls 10c of the jet duct 10 can also abut against the two lateral side walls 41a of the through duct 41, respectively, and at this time, the jet duct 10 occupies almost the entire space behind the through duct 41, so that the natural air introduced by the cabinet air conditioner indoor unit 1 is sent out through the jet duct 10.

In some embodiments, the casing 40 further defines a first air inlet 451 and a second air inlet 452, and the first heat exchange air duct 42 and the second heat exchange air duct 43 are respectively communicated with the first air inlet 451 and the second air inlet 452, so that the air outside the cabinet air conditioner indoor unit 1 is forced to flow into the first heat exchange air duct 42 through the first air inlet 451 by the first fan 61, and the air outside the cabinet air conditioner indoor unit 1 flows into the second heat exchange air duct 43 through the second air inlet 452 by the second fan 62.

Further, the through channel 41 may be formed in the middle of the casing 40, and the first air inlet 451 and the second air inlet 452 may be respectively located at two lateral sides of the casing 40 to prevent the air inlets of the first heat exchange air duct 42 and the second heat exchange air duct 43 from interfering.

In some embodiments, the fans in the first heat exchange air duct 42 and the second heat exchange air duct 43 are cross-flow fans with rotating shafts extending in the vertical direction. Correspondingly, the first air inlet 451, the second air inlet 452, the first heat exchange air flow outlet 421 and the second heat exchange air flow outlet 431 are all elongated air inlets extending along the vertical direction. The jet air duct 10 is an elongated air duct extending vertically. Therefore, the air outlet height of the cabinet air conditioner indoor unit 1 in the vertical direction can be increased, and the air supply range is expanded. The first and second heat exchangers 51 and 52 are V-shaped or arc-shaped heat exchangers disposed laterally outside the first and second fans 61 and 62, respectively.

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 usage state of the fluidic device 1 and the cabinet air conditioner indoor unit 100, and these terms are only used for the 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 constructed 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. A fluidic device for a cabinet air-conditioning indoor unit having a heat exchange airflow outlet extending vertically, characterized in that it comprises:

the jet flow air duct extends along the vertical direction, a vertically extending cavity is defined in the jet flow air duct, and a strip-shaped jet flow air outlet extending along the vertical direction is formed in one side surface of the jet flow air duct; and

the jet flow fan is arranged at the bottom or below the jet flow air duct and is communicated with the cavity in a fluid mode so as to controllably drive airflow outside the jet flow device to flow into the cavity and send the airflow out through the jet flow air outlet, and therefore the airflow is mixed with the heat exchange airflow flowing out of the heat exchange airflow outlet; wherein

The jet flow air channel is internally provided with at least one air channel partition plate which is used for dividing the cavity into at least two air outlet channels which are mutually independent and are communicated with the jet flow fan, each air outlet channel is communicated with the corresponding air outlet section of the jet flow air outlet in the vertical direction, and the at least one air channel partition plate is arranged to ensure that the flow velocity of air flow sent out from each air outlet section of the jet flow air outlet is the same.

2. The fluidic device of claim 1,

the at least one air duct partition plate is arranged to enable the flow area of the airflow inlet of each air outlet duct to be the same, and the lengths of the at least two air outlet sections which are sequentially arranged from bottom to top are gradually reduced.

3. The fluidic device of claim 2,

the jet air outlet is formed on the front side surface of the jet air duct;

at least one wind channel baffle will the cavity is separated into at least two along the fore-and-aft direction range the air-out wind channel, and by at least two of arranging in proper order backward the air-out wind channel respectively with from the supreme at least two of arranging in proper order down the air-out district section one-to-one ground intercommunication.

4. The fluidic device of claim 3,

each air duct partition plate comprises a straight section extending vertically and upwards from the bottom of the jet flow air duct and a bent section extending from the tail end of the straight section to the jet flow air outlet in a forward bending mode, the position where the bent section is connected with the jet flow air outlet forms a junction line, and the junction line forms a boundary line of two adjacent air outlet sections of the jet flow air outlet.

5. The fluidic device of claim 4,

and the top of the air outlet duct at the rearmost side is provided with an air deflector which is bent forwards from the rear wall of the jet air duct and extends to the top edge of the jet air outlet.

6. The fluidic device of claim 5,

the bent sections of the air deflector and each air duct partition plate are both arc-shaped which are convexly bent upwards.

7. The fluidic device of claim 1,

the jet fan is a centrifugal fan, so that air outside the jet device is driven to flow into the centrifugal fan horizontally and into the jet air duct from bottom to top in a controlled manner.

8. A cabinet air-conditioning indoor unit, comprising:

the shell is provided with a heat exchange airflow outlet used for conveying heat exchange airflow to the indoor space; and

the fluidic device of any one of claims 1 to 7, configured to controllably cause an airflow from outside the fluidic device to flow into the fluidic device and exit the fluidic device through the fluidic outlet port of the fluidic device, and to mix the airflow exiting the fluidic outlet port with the heat-exchange airflow exiting the heat-exchange airflow outlet port.

9. The cabinet air-conditioning indoor unit of claim 8,

a through channel which penetrates through the shell from front to back and a first heat exchange air duct and a second heat exchange air duct which are respectively positioned at two transverse sides of the through channel and are independent of each other are formed in the shell, the first heat exchange air duct and the second heat exchange air duct are both provided with heat exchange airflow outlets, and heat exchangers and fans are arranged in the first heat exchange air duct and the second heat exchange air duct so as to drive the heat exchange airflows in the first heat exchange air duct and the second heat exchange air duct to be sent out through the heat exchange airflow outlets of the fans;

the jet air duct, the first heat exchange air duct and the second heat exchange air duct are arranged in the penetrating channel independently, so that natural air which flows out through the jet air duct and is not subjected to heat exchange is mixed with heat exchange air flow sent out through the first heat exchange air duct and the second heat exchange air duct.

10. The cabinet air-conditioning indoor unit of claim 9, wherein,

the rear section of the through channel tapers from rear to front; and is

The jet air duct is arranged at the rear section of the through channel, and the shape of the jet air duct is matched with that of the rear section of the through channel.

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