CN110160162B

CN110160162B - Suspension angle air conditioner indoor unit

Info

Publication number: CN110160162B
Application number: CN201910403479.6A
Authority: CN
Inventors: 刘光朋; 史为品
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Priority date: 2019-05-15
Filing date: 2019-05-15
Publication date: 2023-04-07
Anticipated expiration: 2039-05-15
Also published as: CN110160162A

Abstract

The invention belongs to the field of air conditioners, and particularly provides a suspension angle air conditioner indoor unit. The invention aims to solve the problem that the air outlet speed of an indoor unit of a suspension angle air conditioner cannot be increased under the condition of low noise, the indoor unit of the suspension angle air conditioner comprises a shell, a blower and a heat exchanger are arranged in the shell, an air supply opening and an air return opening are arranged on the shell, the indoor unit also comprises a jet device, the jet device comprises a jet ring and an induced air box, the induced air box comprises a box body, an induced draft fan and a purification module, an air suction opening and an air exhaust opening are arranged on the box body, the jet ring comprises an annular shell, an inner annular hole of the annular shell is surrounded on the air supply opening, an annular airflow channel is formed between an inner annular surface and an outer annular surface of the annular shell, an air inlet and an air outlet are arranged on the annular shell, and the air inlet is communicated with the air outlet through the airflow channel. Through setting up fluidic device, reduce forced draught blower air supply rotational speed to reduce the noise.

Description

Suspension angle air conditioner indoor unit

Technical Field

The invention relates to the technical field of air conditioning, in particular to a suspension angle air conditioner indoor unit.

Background

With the continuous improvement of the quality of life, the arrangement requirements of consumers on rooms are higher and higher, especially the current house types generally mainly use practicality and have small use areas, so that how to fully utilize each inch of space in the rooms becomes the key point of attention of people.

Air conditioners are commonly used as household appliances and are available for most households. The types of the existing air conditioners mainly comprise a wall-mounted air conditioner and a cabinet air conditioner, and the existing air conditioners are placed on the upper side of a wall body or directly placed on the ground, so that the main space in a room is occupied, and the space utilization rate in the room is poor. Therefore, more and more people choose to use the corner hanging air conditioner, which only needs to be hung on the corner, usually the space is arranged in the mid-air and is positioned in the corner, so that the user is difficult to occupy. Because the indoor unit of the suspension angle air conditioner does not occupy the ground space and the wall space, the indoor unit becomes the preferred choice of users.

In the suspension angle air conditioner in the prior art, the air outlet speed is constant, so that the blown air cannot be quickly diffused to each corner of a room, and particularly, the temperature difference between the position near the air conditioner and the position far away from the air conditioner is often large under the condition that the indoor space is large. The general solution is to increase the wind speed, i.e. increase the rotational speed of the fan, and then the cooled/heated air can be delivered to a further space, but correspondingly, the noise generated by the fan will be increased a lot, and the user experience will be poor. Therefore, at present, only balance can be made on the aspects of increasing the air outlet speed and reducing the noise of the fan, and the balance cannot be achieved.

Accordingly, there is a need in the art for a new suspension angle air conditioner indoor unit to solve the problem that the existing suspension angle air conditioner indoor unit cannot increase the outlet air speed under the condition of low noise.

Disclosure of Invention

In order to solve the above problems in the prior art, that is, to solve the problem that the existing indoor unit of a suspension angle air conditioner cannot increase the outlet air speed under the condition of low noise, the present invention provides an indoor unit of a suspension angle air conditioner, comprising a casing, wherein a blower and a heat exchanger are arranged in the casing, an air supply outlet and an air return inlet are arranged on the casing, the indoor unit of a suspension angle air conditioner further comprises a jet device, the jet device is arranged at the air supply outlet, the jet device comprises a jet ring and an induced draft box, the induced draft box comprises a box body, an induced draft fan and a purification module which are arranged in the box body, an air suction inlet and an air outlet are arranged on the box body, the jet ring comprises an annular shell, an inner ring hole of the annular shell is arranged around the air supply outlet, an annular air flow channel is formed between an inner ring surface and an outer ring surface of the annular shell, an air inlet and an air outlet are arranged on the annular shell, the air inlet is communicated with the air outlet through the air flow channel, and the air inlet is connected with the air outlet,

the fluidic device sets to can under the drive of draught fan, pass through the room air the inlet scoop is introduced the box body is in the process it enters to purify module filtration back airflow channel to finally pass through the air outlet sprays, and with supply-air outlet exhaust wind mixes mutually.

In the above preferred technical solution of the indoor unit of a suspended-angle air conditioner, the air outlet is formed by overlapping the outer annular surface and the inner annular surface.

In the preferable technical scheme of the indoor unit of the overhang angle air conditioner, a tapered section and an expansion section are further formed at the air outlet.

In the preferable technical scheme of the indoor unit of the suspended-angle air conditioner, the air outlet is annular; and/or the air outlet is arranged on the inner annular surface of the annular shell.

In the preferable technical scheme of the indoor unit of the suspended angle air conditioner, the jet device further comprises a support, one end of the support is fixedly connected with the shell, and the other end of the support is fixedly connected with the jet ring.

In the preferred technical scheme of above-mentioned machine in the angle of overhang air conditioning, the draught fan includes reluctance motor and fan, the fan is fixed on reluctance motor's the output shaft.

In the preferable technical scheme of the indoor unit of the suspended angle air conditioner, the number of the air supply ports is two, the indoor unit of the suspended angle air conditioner further comprises a humidifying water tank provided with an atomizing element, the heat exchanger, the humidifying water tank and the shell jointly enclose two air supply cavities, one air supply machine is arranged in each air supply cavity, the two air supply ports are respectively communicated with one air supply cavity, the air return port is communicated with the air supply cavity,

the suspension angle air conditioner indoor unit is arranged in such a way that when the air feeder runs, indoor air enters the air supply cavity through the air return opening and is discharged through the air supply opening together with water mist generated by the atomizing element after exchanging heat with the heat exchanger and the humidification water tank.

In a preferred technical scheme of the indoor unit of the suspended angle air conditioner, the blower is a cross-flow fan, the cross-flow fan comprises a first driving motor and an impeller set, the first driving motor is connected with the impeller set and can drive the impeller set to rotate, and the impeller set is arranged to be capable of extending and retracting along the axial direction of the first driving motor.

In a preferred technical solution of the above indoor unit of a suspension angle air conditioner, the first driving motor is a double-shaft motor, the impeller assembly includes a fixed impeller, a movable impeller and a telescopic driving mechanism, two output shaft sides of the double-shaft motor are respectively provided with one fixed impeller, one telescopic driving mechanism and at least one movable impeller, the fixed impeller is connected with the output shaft, the movable impeller is slidably sleeved with the fixed impeller, and the telescopic driving mechanism is connected with the movable impeller farthest from the double-shaft motor and can drive the movable impeller to slide relative to the fixed impeller.

In the preferable technical scheme of the indoor unit of the suspended angle air conditioner, the telescopic driving mechanism comprises a second driving motor, a winding drum and a steel wire rope, one end of the fixed impeller, which is close to the double-shaft motor, is provided with a conductive slip ring, the second driving motor is fixed inside a rotor of the conductive slip ring and is electrically connected with the rotor, the winding drum is connected with an output shaft of the second driving motor, one end of the steel wire rope is fixedly connected with the winding drum, the other end of the steel wire rope is fixedly connected with the movable impeller, which is farthest away from the double-shaft motor, an elastic part is further arranged between two adjacent impellers, and the elastic part is arranged to store elastic potential energy when the movable impeller contracts relative to the fixed impeller.

The indoor unit of the suspension angle air conditioner comprises a shell, a blower and a heat exchanger are arranged in the shell, an air supply opening and an air return opening are formed in the shell, the indoor unit of the suspension angle air conditioner further comprises a jet device, the jet device is arranged at the air supply opening and comprises a jet ring and an induced draft box, the induced draft box comprises a box body and an induced draft fan arranged in the box body, an air suction opening and an air exhaust opening are formed in the box body, the jet ring comprises an annular shell, an inner ring hole of the annular shell is surrounded on the air supply opening, an annular airflow channel is formed between an inner ring surface and an outer ring surface of the annular shell, an air inlet and an air outlet are formed in the annular shell, the air inlet is communicated with the air outlet through the airflow channel, the air inlet is connected with the air exhaust opening, the jet device is arranged to be capable of leading indoor air into the box body through the air suction opening under the driving of the induced draft fan, enabling the indoor air to enter the airflow channel through the air exhaust opening and finally be ejected through the air outlet and mixed with air exhausted from the air supply opening.

Through the arrangement mode, the jet device can be started when the air outlet speed needs to be increased, and the jet device generates a high-speed jet air from the air outlet and blows the high-speed jet air to a farther position together with the air which is exhausted from the air supply outlet and subjected to heat exchange. Because the noise is mainly generated when the air feeder operates at high speed, the noise is increased in a geometric multiple manner at high rotating speed, and the noise of the air feeder is not large at low rotating speed, the jet device is additionally arranged, and the high-speed wind generated by the jet device drives the wind discharged from the air feeding port, so that the high-rotating-speed operation of the air feeder is not needed any more. After long-term tests, the inventor finds that when the jet device is added for normal operation, the sum of the noises generated by normal operation of the induced draft fan and the blower is far lower than the noise generated by independent high-speed operation of the blower. The suspended angle air conditioner is arranged at the corner of a wall, so that the air quantity required by the suspended angle air conditioner is much higher than that of a conventional air conditioner in order to enable the indoor temperature to be regulated, the jet device related to the invention is added, the air supplementing effect is obvious, a user can enjoy temperature regulation in a larger range under the conventional operation working condition, the upper limit of the air supplementing function of the suspended angle air conditioner is also increased, and in some extreme cases, the temperature regulation range can be brought by sacrificing noise.

Furthermore, the jet device can be additionally provided with a purification module, and the purification module is arranged in the induced draft box, so that air exhausted by the jet device can be purified, the environment of a user is better, and the satisfaction degree is higher.

Furthermore, the purification module selects the cup-shaped filter layer, namely the purification module is provided with a plurality of round platform-shaped pits, so that the wind direction passing through the filter layer can be guided, the round platform-shaped pits are arranged, and the filtering area is increased and the air filtering capacity is enhanced relative to a plane filter screen. In addition, the rebound and wind resistance to airflow impact is much less than for a flat screen.

Furthermore, the humidifying water tank is added, the design of the inner structure of the shell is reduced, the middle grid block is not needed any more, and the manufacturing is easier. The humidification water tank has still expanded the humidification function of overhang angle air conditioner, and in addition, the position that sets up of humidification water tank still makes the forced draught blower when the air current that carries out the heat exchange with the heat exchanger when moving flows through the humidification water tank, and the humidification water tank adjusts the temperature to the air current to can reach the soft purpose of air-out, prevent that the air-out is too cold or overheated and influence user experience.

Furthermore, the air feeder is designed into a cross flow fan, and the impeller group of the cross flow fan is arranged to be capable of stretching along the axial direction of the first driving motor, so that the suspension angle air conditioner indoor unit can also realize control over the longitudinal air outlet height, and can be adjusted according to the actual installation position of the air conditioner and the height parameters of a user, thereby achieving the effect of no blowing head from the top and no blowing legs from the bottom, and further improving the user experience.

Drawings

The present invention will be described with reference to the accompanying drawings. In the drawings:

fig. 1 is a schematic view of an installation position of a suspension angle air conditioner indoor unit according to a first embodiment of the present invention;

fig. 2 is an external view schematically illustrating a suspension angle air conditioner indoor unit according to a first embodiment of the present invention;

fig. 3 is a side view of a ceiling-angle air conditioning indoor unit according to a first embodiment of the present invention;

FIG. 4 is a cross-sectional view of a fluidic device in a first embodiment of the present invention;

FIG. 5 is a bottom view of the fluidic ring of FIG. 4;

FIG. 6 is a cross-sectional view of the jet ring of the present invention;

FIG. 7 is a front view of a purification module;

FIG. 8 is a three-dimensional perspective view of a purification module;

fig. 9 is a cross-sectional view of a ceiling-angle air conditioning indoor unit according to a first embodiment of the present invention;

FIG. 10 is a schematic view of a crossflow blower in an extended state in accordance with a first embodiment of the present invention;

FIG. 11 is a schematic view (two) of a crossflow blower in a contracted state in a first embodiment of the present invention;

FIG. 12 is a cross-sectional view of FIG. 10;

FIG. 13 is a cross-sectional view of a fluidic device in a second embodiment of the present invention;

FIG. 14 is a cross-sectional view of a fluidic device in a third embodiment of the present invention;

fig. 15 is a cross-sectional view of a fluidic device in a fourth embodiment of the present invention.

List of reference numerals:

1. a housing; 11. an air supply outlet; 12. an air return opening; 2. a humidifying water tank; 21. an atomizing element; 22. an air supply cavity; 3. a heat exchanger;

4. a blower; 41. a first drive motor; 411. an output shaft; 412. lengthening a shaft; 42. an impeller assembly; 421. fixing the impeller; 4211. a conductive slip ring; 4212. a limiting edge; 422a/422b, a movable impeller; 4221. a limiting edge; 423. a telescopic driving mechanism; 4231. a second drive motor; 4232. a winding drum; 4233. a wire rope; 424. an elastic member;

5. a fluidic device;

51. a jet ring; 511. an inner ring surface; 512. an outer annular surface; 513. an air flow channel; 514. an air inlet; 515. an air outlet; 5151. a tapered section; 5152. an expansion section;

52. a wind-guiding box; 521. a case body; 5211. an air suction opening; 5212. an air outlet; 522. an induced draft fan; 5221. a reluctance motor; 5222. a fan; 523. a purification module;

53. a fresh air duct; 54. and a support pillar.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications. For example, although the description is made by charging the second driving motor through the conductive slip ring, it is obvious that the present invention may be powered by other structures, for example, a storage battery is disposed at the motor to supply power to the motor, and the indoor unit is designed to be periodically connected with the storage battery to replenish the power of the storage battery, as long as the second driving motor can be operated normally and the rotation of the impeller set is not hindered.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example one

First, a description will be given of a suspended angle air conditioning indoor unit of the present invention with reference to fig. 1 to 9. Fig. 1 is a schematic view of an installation position of a suspended corner air-conditioning indoor unit according to a first embodiment of the present invention, fig. 2 is a schematic view of an external appearance of the suspended corner air-conditioning indoor unit according to the first embodiment of the present invention, fig. 3 is a side view of the suspended corner air-conditioning indoor unit according to the first embodiment of the present invention, fig. 4 is a sectional view of a jet device according to the first embodiment of the present invention, fig. 5 is a bottom view of a jet ring according to fig. 4, fig. 6 is a cross-sectional view of the jet ring according to the present invention, fig. 7 is a front view of a purification module, fig. 8 is a three-dimensional perspective view of the purification module, and fig. 9 is a cross-sectional view of the suspended corner air-conditioning indoor unit according to the first embodiment of the present invention.

Referring to fig. 1 to 6 and 9, in order to solve the problem that the existing suspension angle air-conditioning indoor unit cannot increase the outlet air speed under the condition of low noise, the suspension angle air-conditioning indoor unit of the invention comprises a shell 1, wherein a blower 4 and a heat exchanger 3 are arranged in the shell 1, an air supply outlet 11 and an air return outlet 12 are arranged on the shell 1, the suspension angle air-conditioning indoor unit further comprises a jet device 5, and the jet device 5 is arranged at the air supply outlet 11. Referring to fig. 3 and 4, the fluidic device 5 includes a fluidic ring 51, an induced draft box 52 and a fresh air pipe 53, the induced draft box 52 includes a box 521, and an induced draft fan 522 and a purification module 523 that are disposed in the box 521, an air suction opening 5211 and an air exhaust opening 5212 are disposed on the box 521, one end of the fresh air pipe 53 is connected to the air suction opening 5211, and the other end is communicated with the outside. Referring to fig. 2, 4 and 6, the fluidic ring 51 includes a ring-shaped housing, an inner ring hole of the ring-shaped housing is surrounded by the air supply opening 11, a ring-shaped airflow channel 513 is formed between an inner ring surface 511 and an outer ring surface 512 of the ring-shaped housing, the ring-shaped housing is provided with an air inlet 514 and an air outlet 515, the air inlet 514 and the air outlet 515 are communicated through the airflow channel 513, and the air inlet 514 is connected with an air outlet 5212. Driven by the induced draft fan 522, outdoor fresh air is introduced into the box 521 through the fresh air pipe 53, enters the air flow channel 513 after being filtered by the purification module 523, is finally ejected through the air outlet 515, and is mixed with air exhausted from the air supply outlet 11.

The setting mode has the advantages that: because the total noise volume when draught fan 522 and forced draught blower 4 normally operate is less than the noise when forced draught blower 4 operates at a high speed alone far away, fluidic device 5 can produce the gas that flows at a high speed, and it sets up in supply-air outlet 11 department, can take the air after the heat transfer to farther place, when realizing the increase air-out wind speed, reduces the air-out noise. By connecting the air suction opening 5211 with the fresh air pipe 53, outdoor fresh air can enter the box body 521, so that indoor air circulation is facilitated, the environment where a user is located is better, and the satisfaction degree is higher. Through increasing purification module 523, the messenger can all obtain purifying through fluidic device 5's air homoenergetic, has also promoted the indoor air circumstance of user, makes the air conditioner compromise air purifier's function.

In addition, fan blades are used in the design of the air supply system of the air conditioner, but since the fan blades may cause damage to people during operation, the fan blades must be installed inside the casing 1. However, the housing 1 itself is closed, and when noise generated by the fan inside the housing 1 diffuses out, the noise reduction effect is limited due to the echo effect, and more internal space of the housing 1 is occupied, so that it is difficult for those skilled in the art to balance the noise. The inventor of the present application creatively applies the fanless jet device 5 to the air conditioner, because the jet ring 51 of the jet device 5 has a fanless structure, the air output is large, the noise is low, and because the outside of the jet ring can not touch the fan blades, the user can not be injured. Correspondingly, the fan-blade-free jet device 5 can be flexibly arranged on the shell 1 without being limited by the installation position, can be flexibly installed around the air supply outlet 11 without changing the design of the shell 1, can supplement air and does not reduce the safety performance, the mode that the fan-blade-free jet device 5 is applied to the field of air conditioners to supplement the air output of the air conditioners is extremely difficult to find by technical personnel in the field, all air supplement technologies in the field are based on fans with fan blades at present, and the biggest defect of the design is that the limitation of the shell 1 on fans cannot be broken through, only one oversized shell can be designed, and then air supply channel design and the like are carried out to achieve air supply supplement. The invention generates traditional concept design for the external structure design of the air conditioner, so that technicians in the field are not limited by the structure of the shell 1 and safety consideration, the size of the shell 1 is not required to be changed, and air supplement can be completed only by designing the annular jet device 5 on the surface of the shell 1, which is a brand new design concept for the field of air supplement of the indoor unit of the suspension angle air conditioner.

The suspension angle air conditioning indoor unit of the present invention will be described in detail with further reference to the accompanying drawings.

As shown in fig. 6, in one possible embodiment, the air outlet 515 is formed by overlapping the outer annular surface 512 and the inner annular surface 511, a tapered section 5151 and a flared section 5152 are formed at the air outlet 515, and the air outlet 515 is disposed on the inner annular surface 511 of the annular housing, and is annular as a whole. The fluidic device 5 further comprises a support 54, one end of the support 54 is fixedly connected with the housing 1, the other end of the support 54 is fixedly connected with the fluidic ring 51, and the fluidic device 5 is fixedly connected with the housing 1 through the support.

The setting mode has the advantages that: the air outlet 515 is provided with a tapered section 5151 and an expansion section 5152, when air enters the air outlet 515 from the airflow channel 513, according to the venturi effect principle, the flow rate of the air is raised, and negative pressure can be generated in the air flow lifting process to suck the air sent out by the air-conditioning air supply outlet 11, so that the air supplementing capacity is stronger. The air outlet 515 is arranged on the inner ring surface 511 and is annular as a whole, and since the annular jet ring 51 is arranged at the air supply opening 11, the inner ring surface 511 is obviously closer to the air supply opening 11 than the air outlet 515 is arranged at other positions, such as on the outer ring surface 512, and the suction effect can be more effectively realized. When the support 54 is provided, the airflow sucked by the jet ring 51 enters the jet ring 51 through the gap between the jet ring 51 and the casing 1 in addition to the air blown from the air blowing port 11, and the air is blown out at an accelerated speed, thereby further increasing the amount of the supplementary air.

As shown in fig. 4, 7 and 8, in one possible embodiment, the purification module 523 is a filter layer, the filter layer is in the shape of a plurality of groups of concave pits, the concave pits are in the shape of a plurality of independent circular truncated cones as shown in fig. 7 and 8, the overall shape of the concave pits is similar to that of a flat plate provided with a plurality of circular holes, a circular truncated cone-shaped water cup is placed in each circular hole, and the circular truncated cone-shaped water cup is gradually reduced along the airflow direction, so that the purification module is named as a cup-shaped filter layer in the invention.

The setting mode has the advantages that: the cleaning module 523 selects a stack cup filter layer, and when the air flows through the stack cup filter layer, the stack cup is closed, so that the air can flow into the air inlet 514 in a more precise direction, and the air can be accelerated by using a venturi effect. When air flows to the filter layer, the filter area is increased due to the addition of the pits, so that the resistance to the air is reduced, and the filter efficiency is improved.

As shown in fig. 4, in one possible embodiment, the induced draft fan 522 includes a reluctance motor 5221 and a fan 5222.

The setting mode has the advantages that: the reluctance motor 5221 has extremely low noise, and the combination of the reluctance motor 5221 and the fan 5222 also reduces the total noise of the indoor unit of the suspension angle air conditioner provided by the invention on the premise of ensuring the air supply quantity. In addition, the air volume of the reluctance motor 5221 is about 15 times that of a conventional fan, so that the air outlet capacity of the reluctance motor is greatly increased.

As shown in fig. 9, in a possible embodiment, the air blower 4 is a cross flow fan, the number of the cross flow fans is two, the indoor unit of the suspended angle air conditioner further includes a humidification water tank 2 configured with an atomization element 21, the heat exchanger 3, the humidification water tank 2 and the casing 1 together enclose two air supply cavities 22, one air blower 4 is arranged in each air supply cavity 22, and the two air supply ports 11 are respectively communicated with one air supply cavity 22. As shown in fig. 9, when the blower 4 is operated, indoor air enters the casing 1 through the return air opening 12, and after heat exchange with the heat exchanger 3 and the humidification water tank 2, the air flow is discharged through the blower opening 11 together with mist generated by the atomizing element 21. Preferably, a water filling port (not shown) is arranged at the top of the humidifying water tank 2, and the atomizing element 21 is an ultrasonic atomizer. The ultrasonic atomizer has two atomizing nozzles (not shown), each of which is disposed corresponding to one of the air supply ports 11. When the ultrasonic atomizer operates, the water in the humidification water tank 2 is atomized into water mist through ultrasonic waves, and the water mist is sprayed to the air supply outlet 11 through an atomizing nozzle.

The setting mode has the advantages that: through set up humidification water tank 2 and atomizing component 21 in shell 1, the interior machine of hang angle air conditioning of this application can also collect refrigeration, heat, humidification in an organic whole, both can be applicable to the humid area of weather when not opening the humidifier, just can be applicable to the dry area of weather after opening the humidifier, promotes the suitability of hang angle air conditioning interior machine. Furthermore, by dividing the casing 1 into two air supply chambers 22 by using the humidifying water tank 2, the structure of the casing 1 can be simplified, and the processing of the intermediate partition can be eliminated. And the setting position of the humidification water tank 2 also enables the cross-flow fan to be in operation, and when the air current after heat exchange with the heat exchanger 3 flows through the humidification water tank 2, the humidification water tank 2 can adjust the temperature of the air current, so that the aim of soft air outlet can be achieved, and the influence on user experience caused by over-cold or over-hot air outlet is prevented.

As shown in fig. 9 to 12, in one possible embodiment, the blower 4 includes a first drive motor 41 and an impeller set 42, the first drive motor 41 is connected to the impeller set 42 and can drive the impeller set 42 to rotate, and the impeller set 42 is provided to be capable of extending and contracting in an axial direction of the first drive motor 41. Specifically, the first driving motor 41 is a two-shaft motor having two output shafts 411, and each output shaft 411 is in transmission connection with an elongated shaft 412. The impeller assembly 42 includes two fixed impellers 421, two movable impellers 422a, two movable impellers 422b, and two telescopic driving mechanisms 423, that is, two output shafts 411 of the first driving motor 41 are respectively provided with a fixed impeller 421, a movable impeller 422a, a movable impeller 422b, and a telescopic driving mechanism 423. Referring to fig. 13, one side of the fixed impeller 421 close to the first driving motor 41 is fixedly connected to the output shaft 411 or the extension shaft 412, and the movable impeller 422a located inside is connected to the fixed impeller 421 so as to be slidable along the extension shaft 412, and is limited by a limit edge 4212 provided at one end of the fixed impeller 421 away from the first driving motor 41. The outermost movable impeller 422b is connected to the inner movable impeller 422a so as to be slidable along the extension shaft 412, and is stopped by a stopper 4221 provided at one end of the inner movable impeller 422a away from the first drive motor 41. The diameter of the impeller positioned on the outer side in the two adjacent impellers is larger than that of the impeller positioned on the inner side, so that the impeller positioned on the outer side can be sleeved on the impeller positioned on the inner side when the impeller positioned on the outer side slides relative to the impeller positioned on the inner side. The extension shaft 412 passes through the fixed impeller 421 and the two movable impellers (422 a and 422 b), and can limit and guide when the movable impellers (422 a and 422 b) slide.

The setting mode has the advantages that: by arranging the impeller group 42 of the blower 4 to be capable of extending and retracting along the axial direction of the first driving motor 41, the suspension angle air conditioner indoor unit can also realize control over the longitudinal air outlet height, and further enriches the air outlet selection of a user, so that the effects of no blowing head at the upper part and no blowing leg at the lower part are achieved, and the user experience is further improved.

With further reference to fig. 11 to 13, the telescopic driving mechanism 423 includes a second driving motor 4231, a winding drum 4232 and a wire rope 4233, one end of the fixed impeller 421 near the biaxial motor is provided with a conductive slip ring 4211, the conductive slip ring 4211 includes a rotor and a stator electrically connected to each other, the second driving motor 4231 is fixed inside the rotor of the conductive slip ring 4211 and electrically connected to the rotor, the winding drum 4232 is connected to an output shaft 411 of the second driving motor 4231, and the wire rope 4233 is wound around the winding drum 4232, and has one end fixedly connected to the winding drum 4232 and the other end fixedly connected to the movable impeller 422b located at the outermost side. Elastic members 424, such as springs or elastic rubber, are further provided between the fixed impeller 421 and the movable impeller 422a located inside, and between the

movable impellers

422a and 422b, and the elastic members 424 are provided to be elastically deformed to store elastic potential energy when the movable impeller 422a contracts with respect to the fixed impeller 421 or when the movable impeller 422b contracts with respect to the movable impeller 422 a. The expanded state and the contracted state of the crossflow blower are shown in FIGS. 11 and 12. As shown in fig. 13, when the crossflow blower needs to be retracted, the second driving motor 4231 drives the winding drum 4232 to retract the wire rope 4233, the outer movable impeller 422b is driven by the wire rope 4233 and retracted by the compression spring guided by the extension shaft 412, after the outer movable impeller 422b retracts to a certain stroke, the inner movable impeller 422a is driven by the movable impeller 422b to retract, and finally the outer movable impeller 422a and the inner movable impeller are retracted and sleeved on the outer side of the fixed impeller 421. When the second drive motor 4231 drives the drum 4232 to release the wire rope 4233, the outer movable impeller 422b and the inner movable impeller 422a are extended by the elastic force of the spring and the guide of the extension shaft 412, and reach the fully extended position under the restriction of the limit edge 4212 provided on the fixed impeller 421 and the limit edge 4221 provided on the movable impeller 422a located inside.

The above arrangement mode describes an example of the telescopic driving mechanism 423, and of course, the telescopic driving mechanism 423 may be implemented in various ways, for example, if there is a fear that the conductive slip ring is worn quickly and the maintenance cost is high, it may be designed that a storage battery is arranged at the motor to supply power to the motor, the indoor unit may be designed to be periodically connected with the storage battery to replenish the electric quantity of the storage battery, and the embodiments of the telescopic driving mechanism are various and cannot be listed, but it is only necessary to enable the second driving motor 4231 to operate normally and not to hinder the rotation of the impeller assembly 42.

In conclusion, the addition of the jet device 5 greatly increases the air supplement capability of the suspension angle air conditioner indoor unit. The fresh air pipe 53 and the purification module 523 are added to make the air conditioner have fresh air and purification functions. The air outlet 515 is provided with a tapered section 5151 and an expansion section 5152, the outlet is arranged on the inner annular surface 511, the tapered section 5151 and the expansion section 5152 are designed at the outlet, and the strut 54 is designed, so that the air supplement capability of the jet device 5 is stronger. The purification module 523 selects the cup-shaped filter layer to make the air flow rate faster and the filtering efficiency higher. The design of the reluctance motor 5221 and the fan 5222 is adopted, so that the air supply capacity of the jet device 5 is greatly improved while noise is reduced. The humidification water tank 2 is added, the design of the internal structure of the shell 1 is reduced, an intermediate block is not needed any more, and the manufacturing is easier. Humidification water tank 2 has still expanded the humidification function of overhang angle air conditioner, and in addition, humidification water tank 2 set up the position and still make forced draught blower 4 when the operation carry out the air current flow through humidification water tank 2 after the heat exchange with heat exchanger 3, humidification water tank 2 adjusts the temperature to the air current to can reach the soft purpose of air-out, prevent that the air-out is too cold or overheated and influence user experience. By setting the impeller set 42 of the cross flow fan to be capable of extending and retracting along the axial direction of the first driving motor 41, the suspension angle air conditioner indoor unit can also realize control on the longitudinal air outlet height, and can adjust according to the actual installation position of the air conditioner and the height parameter of a user, so that the effects of no blowing head upwards and no blowing leg downwards are achieved, and the user experience is further improved.

It should be noted that the above-mentioned embodiments are only used for illustrating the principle of the present invention, and are not intended to limit the protection scope of the present invention, and those skilled in the art can modify the above-mentioned structure so that the present invention can be applied to more specific application scenarios without departing from the principle of the present invention.

For example, in an alternative embodiment, the cross section of the jet ring 51 may also be a common hollow ring, and the hollow ring is provided with the air inlet 514 and the air outlet 515, which can also effectively exhaust the air entering the jet ring 51 from the air outlet 5212 to supplement the air volume, but also does not generate the venturi effect, and the air speed generated by the air outlet 515 depends only on the rotation speed of the induced draft fan 512, which does not depart from the principle of the present invention and thus falls within the protection scope of the present invention.

For example, in another alternative embodiment, the fluidic ring 51 and the housing 1 may be connected in other ways, for example, the fluidic ring 51 may also be directly and fixedly connected to the housing 1, the support column 54 is eliminated, and accordingly, the room air cannot enter the fluidic ring 51 through the gap between the housing 1 and the fluidic ring 51, and the amount of the supplementary air can be correspondingly reduced, and the connection ways are various and are not listed, but these do not depart from the principle of the present invention, and thus all will fall within the protection scope of the present invention.

For example, in an alternative embodiment, the purification module 523 can be a filter layer, an activated carbon layer, etc. with other shapes, or other purification devices, such as a plasma purifier, etc., as long as the air entering the jet ring 51 can be purified, without departing from the principle of the present invention, and therefore, the present invention is within the protection scope of the present invention.

For example, in another alternative embodiment, the specific form of the humidification water tank 2 is not constant, and any form of change is within the protection scope of the present invention, provided that the humidification water tank 2, the heat exchanger 3 and the housing jointly enclose the two air supply chambers 22. As shown in fig. 9, the humidifying water tank 2 is disposed in the middle of the air supply chamber 22, and the humidifying water tanks 2 may be disposed on both sides of each air supply machine 4 to improve heat exchange efficiency.

For example, in an alternative embodiment, a crossflow blower of conventional form may be used in addition to the telescopic arrangement of the present embodiment, but this also reduces the options available to the user accordingly.

For example, in another alternative embodiment, the cross-flow fan may be in other combinations, provided that the impeller assembly 42 is axially retractable with respect to the first drive motor 41, without departing from the principles of the present invention. For example, the first driving motor 41 may also be a common motor, and accordingly the impeller assembly 42 includes only one fixed impeller 421 and a plurality of

movable impellers

422a and 422b. For another example, the first driving motor 41 may be guided by a sliding track disposed between the movable impeller 422a and the fixed impeller 421 or between the movable impeller 422a and the movable impeller 422b, instead of disposing the extension shaft 412. For another example, only one movable impeller 422a may be disposed for each fixed impeller 421, or a plurality of movable impellers may be disposed.

For example, in another alternative embodiment, the atomizing element 21 may be any atomizing element commonly used in the art, besides an ultrasonic atomizer, as long as the atomizing means can generate water mist. Such as an electric heater, etc., may also be employed.

Example two

A second embodiment of the present invention will be described with reference to fig. 13, in which fig. 13 is a sectional view of a fluidic device in the second embodiment of the present invention.

As shown in fig. 13, under the premise that another arrangement manner of the embodiment is not changed, the suspension air-conditioning indoor unit of the present invention may also directly use the indoor air to supplement air without providing the fresh air duct 53 and the purification module 523, and the indoor air enters the box 521 through the air inlet 5211, enters the airflow channel 513 through the air outlet 5212, is finally exhausted through the air outlet 515, and carries the heat-exchanged air exhausted from the air outlet 11 to a farther position. The arrangement mode can also reduce the noise generated by the indoor unit of the air conditioner, and the air conditioner is only not provided with fresh air and purification functions.

EXAMPLE III

A third embodiment of the present invention will be described with reference to fig. 14, in which fig. 14 is a sectional view of a fluidic device in the third embodiment of the present invention.

As shown in fig. 14, under the premise that another installation manner of the embodiment is not changed, the suspension air-conditioning indoor unit of the present invention may also directly use the indoor air to supplement air without installing the fresh air pipe 53, and the indoor air enters the box 521 through the air suction opening 5211, is purified by the purification module 523, enters the airflow channel 513 through the air discharge opening 5212, and is finally discharged through the air outlet 515 to flow to a farther position with the heat-exchanged air discharged from the air supply opening 11. The arrangement mode can also reduce the noise generated by the indoor unit of the air conditioner, and the air conditioner is only not provided with a fresh air function.

Example four

A fourth embodiment of the present invention will be described with reference to fig. 15, in which fig. 15 is a sectional view of a fluidic device in the fourth embodiment of the present invention.

As shown in fig. 15, under the premise that another installation manner is not changed in the embodiment of the present invention, the suspension air conditioning indoor unit of the present invention may also directly use the outdoor fresh air to supplement air without installing the purification module 523. The arrangement mode can also reduce the noise generated by the indoor unit of the air conditioner, and only has no purification function.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims

1. The indoor unit of the suspension angle air conditioner is characterized by comprising a shell, wherein a blower and a heat exchanger are arranged in the shell, an air supply opening and an air return opening are formed in the shell, the indoor unit of the suspension angle air conditioner further comprises a jet device, the jet device is arranged at the air supply opening and comprises a jet ring and an induced draft box, the induced draft box comprises a box body, an induced draft fan and a purification module which are arranged in the box body, an air suction opening and an air outlet are formed in the box body, the jet ring comprises an annular shell, an inner ring hole of the annular shell is arranged around the air supply opening, an annular air flow channel is formed between an inner ring surface and an outer ring surface of the annular shell, an air inlet and an air outlet are formed in the annular shell, the air inlet is communicated with the air outlet through the air flow channel, and the air inlet is connected with the air outlet,

the jet device is arranged to be capable of leading indoor air into the box body through the air suction opening under the driving of the induced draft fan, and the indoor air enters the airflow channel after being filtered by the purification module, is finally ejected through the air outlet and is mixed with air discharged from the air supply opening;

the air feeder is a cross-flow fan which comprises a first driving motor and an impeller set, the first driving motor is connected with the impeller set and can drive the impeller set to rotate, and the impeller set can extend and retract along the axial direction of the first driving motor;

the first driving motor is a double-shaft motor, the impeller set comprises a fixed impeller, a movable impeller and a telescopic driving mechanism, two output shaft sides of the double-shaft motor are respectively provided with the fixed impeller, the telescopic driving mechanism and at least one movable impeller, the fixed impeller is connected with the output shaft, the movable impeller is slidably sleeved with the fixed impeller, and the telescopic driving mechanism is connected with the movable impeller farthest from the double-shaft motor and can drive the movable impeller to slide relative to the fixed impeller;

the telescopic driving mechanism comprises a second driving motor, a winding drum and a steel wire rope, wherein one end of the fixed impeller close to the double-shaft motor is provided with a conductive sliding ring, the second driving motor is fixed in the rotor of the conductive sliding ring and is electrically connected with the rotor, the winding drum is connected with an output shaft of the second driving motor, one end of the steel wire rope is fixedly connected with the winding drum, the other end of the steel wire rope is fixedly connected with the movable impeller farthest away from the double-shaft motor, an elastic part is further arranged between two adjacent impellers, and the elastic part is arranged to store elastic potential energy when the movable impeller contracts relative to the fixed impeller.

2. The indoor unit of claim 1, wherein the outlet is formed by overlapping the outer annular surface and the inner annular surface.

3. The indoor unit of a suspended angle air conditioner as claimed in claim 2, wherein the air outlet is further formed with a tapered section and an expanded section.

4. The indoor unit of claim 3, wherein the outlet is annular; and/or the air outlet is arranged on the inner annular surface of the annular shell.

5. The indoor unit of a suspension angle air conditioner of claim 1, wherein the jet device further comprises a pillar, one end of the pillar is fixedly connected with the outer shell, and the other end of the pillar is fixedly connected with the jet ring.

6. The indoor unit of a suspended angle air conditioner of claim 1, wherein the induced draft fan comprises a reluctance motor and a fan, and the fan is fixed on an output shaft of the reluctance motor.

7. The indoor unit of claim 1, wherein the number of the air supply ports is two, the indoor unit further comprises a humidifying water tank equipped with an atomizing element, the heat exchanger, the humidifying water tank and the casing together define two air supply chambers, each air supply chamber is provided with one air supply, the two air supply ports are respectively communicated with one air supply chamber, the air return port is communicated with the air supply chamber,

the indoor unit of the suspension angle air conditioner is arranged in such a way that when the air feeder runs, indoor air enters the air supply cavity through the air return opening, and after heat exchange is carried out between the indoor air and the heat exchanger and between the indoor air and the humidification water tank, the indoor air and water mist generated by the atomization element are discharged through the air supply opening.