CN110160164B - Suspension angle air conditioner indoor unit - Google Patents

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 when a large air volume output is needed, the rotation speed of a blower is too high to generate large noise in a suspension angle air-conditioning indoor unit. Still be provided with the inlet of mending wind on the shell, form the passageway of mending wind between inlet of mending wind and heat transfer passageway, be provided with the tonifying fan in the passageway of mending wind, hang angle air conditioner still includes the fresh air duct, the first end and the inlet connection of mending wind of fresh air duct, second end and outdoor intercommunication. The invention reduces the air supply speed of the air supply machine by arranging the air supply channel, thereby reducing the noise.

Description

Hanging angle air conditioner indoor unit

technical field

The invention belongs to the technical field of air conditioners, and specifically provides a hanging angle air conditioner indoor unit.

Background technique

With the improvement of living standards, people's requirements for the quality of life are getting higher and higher, and this requirement is particularly evident in household appliances. Taking air conditioners as an example, when the indoor and outdoor temperature difference is large, in order to meet the needs of users for rapid cooling/heating after entering the room from the outside, the existing air conditioners usually have a rapid cooling/heating function. When functioning, the compressor of the air conditioner works at a higher frequency to quickly increase the cooling capacity/heating capacity, and the indoor unit of the air conditioner runs at a high speed and a large air volume to send the heat-exchanged cold air/hot air back to the room, thereby realizing indoor cooling. Quick adjustment of temperature.

Although the fast cooling/heating function of the above-mentioned air conditioner solves the user's fast cooling/heating demand to a certain extent, this kind of air conditioner also inevitably has the following problems: the performance (that is, cooling/heating effect) of the traditional air conditioner and the wind Noise is a pair of irreconcilable contradictions. The air conditioner improves the cooling/heating effect by increasing the air supply volume. As the air supply volume increases, the noise also increases; but if the noise reduction index is met, then the air conditioner performance will be limited to some extent. These problems are especially obvious in some special application scenarios such as libraries, wards, and rooms for people with insomnia. That is to say, existing air conditioners have the problem of high noise when the air supply volume is large. Especially for the hanging angle air conditioner, the conventional hanging angle air conditioner is usually equipped with two blowers. In order to achieve better indoor air circulation, it usually produces double noise. At this time, if the fast cooling/heating function is performed, Louder noise will be produced.

Correspondingly, there is a need in the art for a new indoor unit of the hanging angle air conditioner to solve the problem that the existing indoor unit of the hanging angle air conditioner needs a large air volume output, and the blower rotates too high to generate relatively large noise.

Contents of the invention

In order to solve the above-mentioned problems in the prior art, that is, to solve the problem that when the existing indoor unit of the hanging angle air conditioner needs a large air volume output, the fan speed is too high and the noise is generated, the present invention provides a hanging angle air conditioner The indoor unit includes a casing, the casing is provided with an air inlet and an air outlet, a heat exchange passage is formed between the air inlet and the air outlet, and a heat exchanger and a blower are arranged in the heat exchange passage,

The shell is also provided with a supplementary air inlet, a supplementary air channel is formed between the supplementary air inlet and the heat exchange channel, a supplementary fan is arranged in the supplementary air channel, and the hanging angle air conditioner indoor unit also includes A fresh air pipe, the first end of the fresh air pipe is connected to the supplementary air inlet, and the second end is connected to the outdoor,

The indoor unit of the suspended angle air conditioner is set so that, driven by the supplementary fan and the supply fan, the outdoor fresh air is introduced into the supplementary air channel through the fresh air pipeline, and then discharged to the heat exchange channel, and then After being mixed with the indoor air that enters the heat exchange channel from the air inlet and has been heat-exchanged by the heat exchanger, it is discharged through the air outlet.

In the preferred technical solution of the above hanging angle air conditioner indoor unit, the housing is further provided with an air guide groove, and the air guide groove cover is arranged at the inlet of the supplementary air and is fixedly connected with the housing. A fresh air outlet is opened on the slot, and the first end of the fresh air pipe is connected with the fresh air outlet.

In the preferred technical solution of the hanging angle air-conditioning indoor unit above, the end of the supplementary air channel close to the heat exchange channel has a closing structure.

In the preferred technical solution of the hanging angle air-conditioning indoor unit above, the fresh air pipe is further provided with a rotary joint.

In the preferred technical solution of the above hanging angle air conditioner indoor unit, the number of the heat exchange passages is two, and correspondingly the number of the supplementary air passages, the air outlets and the supplementary air inlets are two, each One said air blower is arranged in each of said heat exchange passages, one said supplementary fan is arranged in each of said supplementary air passages, and said hanging angle air-conditioning indoor unit also includes a humidifying water tank equipped with an atomizing element, said The humidification water tank separates the two heat exchange channels,

The indoor unit of the hanging angle air conditioner is set so that when the blower fan and the make-up blower are running simultaneously, the indoor air in the heat exchange channel after heat exchange will first exchange heat with the humidification water tank, and then exchange heat with the make-up blower. The outdoor fresh air discharged from the air passage is mixed together, and finally discharged through the air outlet together with the water mist generated by the atomizing element.

In the preferred technical solution of the hanging angle air-conditioning indoor unit above, the two supplementary fans and the two supply fans are arranged to be able to operate independently of each other.

In the preferred technical solution of the above hanging angle air-conditioning indoor unit, the blower is a cross-flow fan, and the cross-flow fan includes a first drive motor and an impeller set, and the first drive motor is connected to the impeller set and can drive The impeller set rotates, and the impeller set is configured to be able to expand and contract along the axial direction of the first driving motor.

In the preferred technical solution of the above hanging angle air-conditioning indoor unit, the first drive motor is a biaxial motor, the impeller set includes a fixed impeller, a movable impeller and a telescopic drive mechanism, and the two output shaft sides of the biaxial motor One fixed impeller, one telescopic drive mechanism and at least one movable impeller are provided, the fixed impeller is connected to the output shaft, and the movable impeller is slidably socketed on the fixed impeller , the telescopic drive mechanism is connected to the movable impeller farthest from the biaxial motor and can drive the movable impeller to slide relative to the fixed impeller.

In the preferred technical solution of the indoor unit of the hanging angle air conditioner, the telescopic drive mechanism includes a second drive motor, a reel and a wire rope, and a conductive slip ring is provided at one end of the fixed impeller close to the two-axis motor, and the first The second drive motor is fixed inside the rotor of the conductive slip ring and is electrically connected to the rotor, the reel is connected to the output shaft of the second drive motor, and one end of the steel wire rope is fixedly connected to the reel, The other end is fixedly connected to the movable impeller farthest from the biaxial motor, and an elastic member is arranged between two adjacent impellers, and the elastic member is arranged so that when the movable impeller is opposite to the fixed impeller, Stores elastic potential energy during contraction.

In the preferred technical solution of the hanging angle air conditioner indoor unit above, the elastic member is a spring.

Those skilled in the art can understand that, in the technical solution of the present invention, the indoor unit of the hanging angle air conditioner includes a casing, and an air inlet and an air outlet are opened on the casing, and a heat exchange channel is formed between the air inlet and the air outlet, and the heat exchange channel A heat exchanger and a blower are arranged inside, and an inlet for supplementary air is provided on the shell, and a passage for supplementary air is formed between the inlet for supplementary air and the heat exchange channel. The indoor unit of the hanging angle air conditioner is set so that it can The indoor air is introduced into the supplementary air channel through the supplementary air inlet, discharged to the heat exchange channel, and then mixed with the indoor air that enters the heat exchange channel from the air inlet and has been heat-exchanged by the heat exchanger, and is discharged through the air outlet.

Through the above-mentioned setting method, when the indoor unit of the hanging angle air conditioner of the present invention increases the air volume, it does not need to increase the speed of the blower fan, and only needs to turn on the supplementary fan to introduce indoor air into the heat exchange channel, thereby increasing the air volume . Since the noise is mainly generated when the blower operates at high speed, the noise increases geometrically at high speed, and the noise of the blower is not large at low speed. The make-up fan supplies air to the heat exchange channel of the outdoor unit of the hanging angle air conditioner, so the blower fan is no longer needed for high-speed operation. After a long-term test, the inventor found that the supplementary fan is added for normal operation, and the sum of the noise generated by the normal operation of the supplementary fan and the supply fan is far lower than the noise produced by the high-speed operation of the supply fan alone. Since the hanging angle air conditioner is installed at the corner of the wall, the air volume required by it is much higher than that of the conventional air conditioner in order to achieve temperature control in the room. The supplementary air effect is obvious. The air blown by the supplementary fan is mixed with the heat-exchanged air in the heat exchange channel, and flows to a farther position together, so that users can also enjoy a wider range of temperature adjustment under normal operating conditions. The upper limit of the supplementary air function of the hanging angle air conditioner has been increased. In some extreme cases, sacrificing noise can also bring about a larger temperature control range.

Further, a new air duct can be added outside the supplementary air channel of the present invention, the first end of the fresh air duct is connected to the supplementary air inlet, and the second end is connected to the outside, so that the outdoor fresh air can be introduced into the supplementary air through the fresh air duct. The wind channel makes the indoor unit of the suspended angle air conditioner of the present invention take into account the fresh air function, avoiding the situation that bacteria increase due to the need for temperature adjustment in the room without ventilation, and makes the indoor air fresher.

Furthermore, the fresh air pipe is designed with a swivel joint. When installing the fresh air pipe, the operator can freely rotate the fresh air pipe according to the actual orientation, which is more convenient for installation and reduces the installation time and difficulty of the installer.

Further, the addition of the air guide groove also makes it unnecessary for the first end of the fresh air pipe to be directly connected to the supplementary air inlet, so that the size of the supplementary air inlet will not be limited, and the size of the supplementary air inlet will be lengthened accordingly, so that the intake air Smoother and more air volume.

Furthermore, the end of the supplementary air channel close to the heat exchange channel is designed as a closed structure. Using the Venturi effect, the air entering the heat exchange channel from the supplementary air channel will be compressed to increase the flow rate, so that the air volume is greater, and the blown air can reach The farther the place is, the temperature control capability of the indoor unit of the hanging angle air conditioner is also increased.

Furthermore, adding a humidifying water tank reduces the design of the internal structure of the shell, no intermediate barrier is needed, and it is easier to manufacture. The humidification water tank also expands the humidification function of the hanging angle air conditioner. In addition, the setting position of the humidification water tank also enables the airflow after the heat exchange between the blower and the heat exchanger to flow through the humidification water tank during operation, and the humidification water tank adjusts the temperature of the airflow, thereby It can achieve the purpose of soft wind and prevent the wind from being too cold or overheating and affecting the user experience.

Furthermore, the air blower is designed as a cross-flow fan, and by setting the impeller group of the cross-flow fan to be able to expand and contract along the axial direction of the first drive motor, the hanging angle air conditioner indoor unit of the present invention can also realize the control of the vertical air outlet height, Adjust according to the actual installation position of the air conditioner and the user's height parameters, so as to achieve the effect of not blowing the head up and down the legs, further improving the user experience. Of course, the make-up fan can also be set as a retractable structure, and cooperate with the air supply fan to achieve the effect of not blowing the head up and down the legs.

Description of drawings

The hanging angle air conditioner indoor unit of the present invention will be described below with reference to the accompanying drawings. In the attached picture:

Fig. 1 is a schematic diagram of the installation position of the hanging angle air conditioner indoor unit in the first embodiment of the present invention;

Fig. 2 is a schematic diagram of the appearance of the hanging angle air conditioner indoor unit in the first embodiment of the present invention;

Fig. 3 is the sectional view of A-A place in Fig. 2;

Fig. 4 is a partial enlarged view of place B in Fig. 2;

Fig. 5 is the front view of purification module;

Fig. 6 is a three-dimensional perspective view of a purification module;

Fig. 7 is a schematic diagram (1) of the cross-flow fan in an extended state in the first embodiment of the present invention;

Fig. 8 is a schematic diagram (2) of the cross-flow fan in a contracted state in the first embodiment of the present invention;

Fig. 9 is a sectional view of Fig. 7;

Fig. 10 is a cross-sectional view of the indoor unit of the hanging angle air conditioner in the second embodiment of the present invention;

Fig. 11 is a cross-sectional view of the indoor unit of the hanging angle air conditioner in the third embodiment of the present invention;

Fig. 12 is a sectional view of the indoor unit of the hanging angle air conditioner in the fourth embodiment of the present invention.

List of reference signs:

1. Shell; 11. Air inlet; 12. Air outlet; 13. Heat exchange channel; 14. Air supply inlet; 15. Air supply channel; 2. Humidification water tank; 21. Atomization element; 3. Heat exchanger;

4. Air blower; 41. First drive motor; 411. Output shaft; 412. Extended shaft; 42. Impeller group; 421. Fixed impeller; 4211. Conductive slip ring; 4212. Limiting edge; 422a/422b, movable impeller ; 4221, limit edge; 423, telescopic drive mechanism; 4231, second drive motor; 4232, reel; 4233, steel wire rope; 424, elastic piece;

5. Make-up fan; 6. Air guide groove; 61. Fresh air outlet; 7. Fresh air pipe; 71. Rotary joint; 8. Purification module.

Detailed ways

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention. Those skilled in the art can make adjustments as needed so as to adapt to specific applications. For example, although it is described in the specification that the second drive motor is charged by a conductive slip ring, the present invention can obviously adopt other forms of power supply, for example, a storage battery is provided at the motor to supply power to the motor, and the indoor unit is designed to be able to periodically The structure of connecting the storage battery to supplement the storage battery is only necessary as long as it can make the second drive motor run normally without hindering the rotation of the impeller set.

It should be noted that, in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The terms of the indicated direction or positional relationship are based on the direction or positional relationship shown in the drawings, which are only for the 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 therefore cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In addition, it should be noted that, in the description of the present invention, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a It is a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary, and it may be the internal communication of two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Embodiment one

Firstly, referring to Fig. 1 to Fig. 4, the hanging angle air conditioner indoor unit of the present invention will be described. Among them, Fig. 1 is a schematic diagram of the installation position of the indoor unit of the suspended angle air conditioner in the first embodiment of the present invention, Fig. 2 is a schematic diagram of the appearance of the indoor unit of the suspended angle air conditioner in the first embodiment of the present invention, and Fig. 3 is a schematic diagram of the indoor unit of the suspended angle air conditioner in Fig. 2 The cross-sectional view at A-A in Fig. 4 is a partial enlarged view at B in Fig. 2 .

As shown in Fig. 1 to Fig. 4, in order to solve the problem that the blower fan 4 rotates too high and generates relatively large noise when the existing hanging angle air conditioner indoor unit needs a large air volume output, the hanging angle air conditioner indoor unit of the present invention includes a casing 1. The shell 1 is provided with an air inlet 11 and an air outlet 12, and a heat exchange channel 13 is formed between the air inlet 11 and the air outlet 12, and a heat exchanger 3 and a blower 4 are arranged in the heat exchange channel 13. The casing 1 is also provided with a supplementary air inlet 14, and a supplementary air passage 15 is formed between the supplementary air inlet 14 and the heat exchange passage 13, and a supplementary air blower 5 and a purification module 8 are arranged in the supplementary air passage 15, and the hanging angle air conditioner indoor unit also Including the fresh air pipe 7, the first end of the fresh air pipe 7 is connected to the supplementary air inlet 14, and the second end is communicated with the outdoor. The indoor unit of the suspended angle air conditioner is set so that, driven by the supplementary fan 5 and the supply fan 4, the outdoor fresh air is introduced into the supplementary air passage 15 through the fresh air pipe 7, and after being purified by the purification module 8, it is discharged to the heat exchange passage 13, and then combined with the The indoor air that enters the heat exchange channel 13 from the air inlet 11 and has been heat-exchanged by the heat exchanger 3 is mixed and then discharged through the air outlet 12 .

The advantage of the above setting method is: by setting the supply air channel 15 and the supply fan 5, when the air conditioner needs to operate with a large amount of air, the blower 4 does not need to run at high speed, and by turning on the supply blower 5, the outdoor fresh air can pass through the fresh air duct 7 enters the supplementary air inlet 14, and after being purified by the purification module 8, enters the heat exchange channel 13 through the supplementary air channel 15, and is discharged from the air outlet 12 together with the indoor air that has undergone heat exchange. Since the total noise of the supplementary fan 5 and the blower 4 in normal operation is far less than the noise of the blower 4 running alone at high speed, the hanging angle air conditioner indoor unit of the present invention can reduce the noise of the air conditioner when the air conditioner outputs a large amount of air. By arranging the supplementary air channel 15 at the air outlet 12, the wind blown out of the supplementary air channel 15 will not be blocked by objects such as the heat exchanger 3, thereby being able to carry the heat-exchanged air farther. By connecting the fresh air pipe 7 with the supplementary air inlet 14, outdoor fresh air can be brought into the room, which is more conducive to indoor air circulation, so that the user's environment is better and the satisfaction is higher. By adding the purification module 8, the air passing through the supplementary air passage 15 can be purified, which improves the user's indoor air environment and makes the air conditioner take into account the function of an air purifier.

Further referring to Fig. 2 to Fig. 9, the hanging angle air conditioner indoor unit of the present invention will be described in detail, wherein Fig. 5 is a front view of the purification module, Fig. 6 is a three-dimensional perspective view of the purification module, and Fig. 7 is the first A schematic diagram (1) of the cross-flow fan in an extended state in the first embodiment, FIG. 8 is a schematic diagram (2) of the contracted state of the cross-flow fan in the first embodiment of the present invention, and FIG. 9 is a cross-sectional view of FIG. 7 .

As shown in Figures 2 to 4, in a possible implementation, the housing 1 is further provided with an air guide groove 6, the air guide groove 6 is covered at the supplementary air inlet 14 and is fixedly connected with the housing 1, thereby forming A strip-shaped space, the supplementary air inlet 14 is arranged in a strip shape (not shown in the figure) along the length direction of the air guide slot 6 . A fresh air outlet 61 is also arranged on the air guide groove 6, and the first end of the fresh air pipe 7 is connected with the fresh air outlet 61, and the outdoor fresh air fills the strip-shaped space from the new air outlet 61, and then enters the supplementary air passage through the supplementary air inlet 14 15. A rotary joint 71 is also provided on the fresh air pipe 7 , and the two sections of the fresh air pipe 7 are connected together through the rotary joint 71 , and can complete relative rotation based on the rotary joint 71 .

The advantage of the above-mentioned setting method is that: since the fresh air pipe 7 is usually not very large in diameter, when it is connected to the supplementary air inlet 14, the opening size of the supplementary air inlet 14 will be limited by the diameter of the fresh air pipe 7, which is not conducive to Ventilation during high-volume operation. After the above-mentioned method is set, the outdoor air sent by the fresh air pipe 7 will enter the long space surrounded by the air guide groove 6 and the shell 1, and the supplementary air inlet 14 will be opened to grow accordingly. Strip shape, so as to increase the air intake. A rotary joint 71 is provided on the fresh air pipe 7, and when the operator installs the fresh air pipe 7, he can freely rotate the fresh air pipe 7 according to the actual orientation, which is more convenient for installation and reduces the installation time and installation difficulty of the installer.

As shown in FIG. 3 , FIG. 5 and FIG. 6 , in a possible implementation manner, one end of the supplementary air channel 15 close to the heat exchange channel 13 is a closing structure. The purification module 8 is a cup-stacked filter layer, and the filter layer is in the shape of multiple groups of pits. The structure of the pits is shown in Figure 5 and Figure 6, which is a plurality of independent circular frustums, and its overall shape is similar to that set on a flat plate. A plurality of circular holes are provided, and a truncated water cup is placed in each circular hole, and the truncated water cup shrinks along the airflow direction, so it is named as a stacked cup filter layer in the present invention.

The advantage of the above arrangement is that by setting the end of the supplementary air channel 15 close to the heat exchange channel 13 as a closed structure, when the air passes through the supplementary air channel 15, after reaching the closed structure, according to the Venturi effect, a flow rate will be increased. , so that the air blown out of the supplementary air channel 15 can drive the air in the heat exchange channel 13 to a farther position, thereby achieving a larger adjustment range and a more sufficient air volume supplement. The purification module 8 chooses a stacked cup-shaped filter layer. When the air flows through the stacked cup-shaped filter layer, because the stacked cup shape is closed, the air can flow into the first housing in a more precise direction, and the Venturi effect can also be used to give The air is accelerated. When the air flows to the filter layer, due to the increase of the pits, the filter area is also increased, the resistance to the air is reduced, and the filter efficiency is improved.

As shown in Figure 3, in a possible implementation, the number of heat exchange passages 13 is two, correspondingly the number of supplementary air passages 15, air outlets 12 and supplementary air inlets 14 are two, and each exchange A blower 4 is arranged in the hot aisle 13 , and a make-up fan 5 is arranged in each make-up air passage 15 . The hanging angle air conditioner indoor unit also includes a humidifying water tank 2 equipped with an atomizing element 21 , and the humidifying water tank 2 separates two heat exchange passages 13 . As shown in Figure 3, when the blower 4 and the make-up fan 5 are running at the same time, the indoor air in the heat exchange channel 13 after heat exchange first exchanges heat with the humidifying water tank 2, and then exchanges heat with the outdoor fresh air discharged from the make-up air channel 15. Mix together, and finally discharge through the air outlet 12 together with the water mist generated by the atomizing element 21 . The atomizing element is an ultrasonic atomizer, and the ultrasonic atomizer is equipped with two atomizing nozzles, and each atomizing nozzle is set corresponding to an air outlet 12 . In addition, the four blowers, the two make-up blowers 5 and the two supply blowers 4, are set to be able to operate independently of each other.

The advantage of the above-mentioned setting method is that: by setting the humidifying water tank 2 and the atomizing element 21 in the casing, the hanging angle air conditioner indoor unit of the present application can also integrate cooling, heating, and humidifying into one, and it can be used when the humidifier is not turned on. In areas with humid climate, after turning on the humidifier, it can be applied to areas with dry climate, which improves the applicability of indoor units of hanging angle air conditioners. Furthermore, by using the humidifying water tank 2 to separate the two supplementary air passages 15, the structure of the casing 1 can also be simplified, so that there is no need for a partition between the two supplementary air passages 15, and the setting position of the humidifying water tank 2 is still relatively small. When the blower 4 is in operation, when the airflow 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 airflow, so as to achieve the purpose of soft airflow and prevent the airflow from being too cold or Overheating affects user experience. By enabling the four fans to operate independently, the user can control the temperature, humidity, wind speed and other parameters of each air outlet 12, which can meet different needs of users. For example, the wind speed of the air outlet 12 close to the human body can be set relatively low, thereby reducing the possibility of catching a cold or getting cold caused by the direct blow of the air to the human body; the wind speed of the air outlet 12 far away from the human body can be set relatively Higher, thereby improving the operating efficiency of the air conditioner and ensuring a suitable indoor environment.

As shown in Fig. 3 and Fig. 7 to Fig. 9, in a possible implementation manner, the blower 44 is a cross-flow fan, including a first drive motor 41 and an impeller set 42, and the first drive motor 41 is connected to the impeller set 42 And it can drive the impeller set 42 to rotate, and the impeller set 42 is configured to be able to expand and contract along the axial direction of the first driving motor 41 . Specifically, the first driving motor 41 is a double-shaft motor, which has two output shafts 411 , and each output shaft 411 is in drive connection with an extension shaft 412 . The impeller set 42 includes two fixed impellers 421, two movable impellers 422a, two movable impellers 422b and two telescopic drive mechanisms 423, that is, the two output shafts 411 of the first drive motor 41 are respectively equipped with a fixed impeller 421, A movable impeller 422a, a movable impeller 422b and a telescopic driving mechanism 423. 9, the fixed impeller 421 is fixedly connected to the output shaft 411 or the extension shaft 412 on the side close to the first drive motor 41, and the movable impeller 422a located on the inner side is slidably connected to the fixed impeller 421 along the extension shaft 412, and through the fixed The impeller 421 is limited by the limit edge 4212 provided on the end away from the first driving motor 41 . The outermost movable impeller 422b is slidably connected to the inner movable impeller 422a along the extension shaft 412, and is controlled by the limiting edge 4221 provided on the end of the inner movable impeller 422a away from the first driving motor 41. limit. Wherein, the diameter of the outer impeller among the two adjacent impellers is larger than that of the inner impeller, so that the outer impeller can be sleeved on the inner impeller when sliding relative to the inner impeller. Wherein, the extension shaft 412 passes through the fixed impeller 421 and the two movable impellers (422a and 422b), which can limit and guide when the movable impellers (422a and 422b) slide.

The advantage of the above arrangement is that: by setting the impeller set 42 of the air blower 4 to be able to expand and contract along the axial direction of the first drive motor 41, the hanging angle air conditioner indoor unit of the present invention can also realize the control of the vertical air outlet height, further enriching the The user's choice of air outlet, so as to achieve the effect of not blowing the head up and not blowing the legs down, further improving the user experience.

Further referring to Fig. 7 to Fig. 9, telescopic driving mechanism 423 comprises second driving motor 4231, reel 4232 and steel wire rope 4233, and one end of fixed impeller 421 close to biaxial motor is provided with conductive slip ring 4211, and conductive slip ring 4211 includes mutually electrically connected rotor and stator, the second drive motor 4231 is fixed inside the rotor of the conductive slip ring 4211 and is electrically connected to the rotor, the reel 4232 is connected to the output shaft 411 of the second drive motor 4231, and the steel wire rope 4233 is wound on the reel 4232. One end is fixedly connected to the drum 4232, and the other end is fixedly connected to the outermost movable impeller 422b. Between the fixed impeller 421 and the movable impeller 422a located inside, and between the two movable impellers 422a and 422b, an elastic member 424, such as a spring or elastic rubber, etc., is arranged, and the elastic member 424 is arranged to be opposite to the movable impeller 422a. When the fixed impeller 421 contracts or when the movable impeller 422b contracts relative to 422a, elastic deformation occurs to store elastic potential energy. The extended state and contracted state of the cross-flow fan are shown in Fig. 7 and Fig. 8 . As shown in Figure 9, when the cross-flow fan needs to shrink, the second drive motor 4231 drives the reel 4232 to retract the wire rope 4233, and the outer movable impeller 422b is driven by the wire rope 4233 and the compression spring under the guidance of the extension shaft 412 shrinks. After shrinking to a certain stroke, the movable impeller 422b drives the inner movable impeller 422a to shrink, and finally the two shrink and are sleeved on the outside of the fixed impeller 421 . When the second drive motor 4231 drives the reel 4232 to release the wire rope 4233, the movable impeller 422b on the outside and the movable impeller 422a on the inside stretch under the elastic force of the spring and the guidance of the extension shaft 412, and are arranged on the fixed impeller 421. Restricted by the limiting edge 4212 of the inner movable impeller 422a and the limiting edge 4221 provided on the inner movable impeller 422a, it reaches the fully extended position.

The above setting method has described an embodiment of the telescopic drive mechanism 423. Of course, the implementation of the telescopic drive mechanism 423 is various. A battery is installed at the motor to supply power to the motor. The indoor unit is designed to be regularly connected to the battery to supplement the power of the battery. The driving motor 4231 operates normally, and it only needs to not hinder the rotation of the impeller set 42 .

To sum up, by setting the supply air channel 15 and the supply fan 5, the air supply volume is increased, and the high-speed operation of the supply fan 4 is not required, thereby reducing the noise of the hanging angle air conditioner indoor unit. By adding the fresh air pipe 7 and the purification module 8, the fresh air and purification functions of the indoor units of the suspended angle air conditioner are separated. Increase the design of the air guide groove 6 to make the air flow more smoothly. The addition of the swivel joint 71 facilitates the installation of the new air duct 7. The addition of the humidifying water tank 2 reduces the design of the internal structure of the housing 1 and eliminates the need for a middle barrier, making it easier to manufacture. The humidification water tank 2 also expands the humidification function of the hanging angle air conditioner. In addition, the setting position of the humidification water tank 2 also makes the airflow after the heat exchange between the blower fan 4 and the heat exchanger 3 flow through the humidification water tank 2. The temperature of the airflow is adjusted so as to achieve the purpose of soft airflow and prevent the airflow from being too cold or overheating and affecting the user experience. By arranging the impeller group 42 of the cross-flow fan to be able to expand and contract along the axial direction of the first driving motor 41, the hanging angle air conditioner indoor unit of the present invention can also realize the control of the vertical air outlet height, according to the actual installation position of the air conditioner and the user The height parameters are adjusted to achieve the effect of not blowing the head up and down the legs, further improving the user experience.

It should be noted that the above-mentioned embodiments are only used to illustrate the principles of the present invention, and are not intended to limit the protection scope of the present invention. Those skilled in the art can adjust the above-mentioned structures without departing from the principles of the present invention, so that The present invention can be applied to more specific application scenarios.

For example, in an alternative embodiment, the purification module 8 can of course also be filter layers of other shapes, activated carbon layers, etc., or other purification equipment, such as plasma purifiers, etc., as long as it can The air purification can be done, these all do not deviate from the principle of the present invention, therefore all will fall within the scope of protection of the present invention.

For example, in another alternative embodiment, the purification module 8 can not only be arranged inside the supply air passage 15, but also be arranged in the air guide groove 6, or be arranged between the air guide groove 6 and the fresh air duct 7. Any connection can be made, and the installation position of the purification module 8 is various, as long as it can purify the gas entering the supplementary air passage 15, these do not deviate from the principle of the present invention, and therefore all will fall within the scope of protection of the present invention.

For example, in another alternative embodiment, the specific form of the humidifying water tank 2 is not invariable. On the premise of satisfying the temperature compensation of the wind in the heat exchange channel 13, it can also be installed on the side of the supplementary air channel 15. A humidifying water tank 2 is also provided, so as to perform temperature compensation to the wind in the supplementary air passage 15, and these changes all fall within the scope of protection of the present invention.

For example, in another alternative embodiment, the cross-flow fan can also adopt a traditional cross-flow fan in addition to the telescopic arrangement in this embodiment, but it also reduces the choice of the user accordingly.

For example, in another alternative embodiment, the supplementary air blower 5 can also be set to the same retractable structure as the air blower 4, and cooperate with the air blower 4 to output air, so as to achieve the effect of not blowing the head upwards and not blowing the legs downwards.

For example, in another alternative embodiment, on the premise that the impeller set 42 can be axially expanded and contracted relative to the first drive motor 41, the cross-flow fan can also be in other combinations. The change in the combination without departing from the principles of the invention. For example, the first driving motor 41 can also be a common motor, and accordingly the impeller set 42 only includes one fixed impeller 421 and several movable impellers 422a and 422b. For another example, the first driving motor 41 may not be configured with the extension shaft 412, but adopts the way of setting a slide rail between the movable impeller 422a and the fixed impeller 421 or between the movable impeller 422a and the movable impeller 422b to realize the guidance. For another example, each fixed impeller 421 may be configured with only one movable impeller 422a, or may be configured with multiple movable impellers 422a and 422b.

For example, in another alternative embodiment, the atomization element 21 may adopt any atomization element commonly used in the field except the ultrasonic atomizer, as long as the atomization method can generate water mist. For example, electric heaters and the like can also be used.

For example, in another alternative embodiment, the rotary joint 71 can also be replaced with a structure such as a joint that is often used in pipeline connections, which can also achieve relative rotation of the two sections of the fresh air pipe 7 when loosened. After being placed at a reasonable angle, tighten the joint so that the fresh air pipes 7 at both ends are firmly connected.

Embodiment two

The second embodiment of the present invention will be described below with reference to FIG. 10 , wherein FIG. 10 is a cross-sectional view of the indoor unit of the hanging angle air conditioner in the second embodiment of the present invention.

As shown in Figure 10, on the premise that the other setting methods of Embodiment 1 remain unchanged, the indoor unit of the hanging angle air conditioner of the present invention may not be provided with fresh air duct 7, air guide groove 6 and purification module 8, but directly utilizes indoor Air supplements the air, and the indoor air enters the supplementary air channel 15 through the supplementary air inlet 14, and then enters the heat exchange channel 13, and is mixed with the heat-exchanged air and blows out of the hanging angle air conditioner indoor unit. Such a setting method can also reduce the noise generated by the indoor unit of the air conditioner, but it does not have the functions of fresh air and purification.

Embodiment three

The third embodiment of the present invention will be described below with reference to FIG. 11 , wherein FIG. 11 is a cross-sectional view of the indoor unit of the hanging angle air conditioner in the third embodiment of the present invention.

As shown in Figure 11, on the premise that the other setting methods of Embodiment 1 remain unchanged, the indoor unit of the hanging angle air conditioner of the present invention may not be provided with fresh air pipe 7 and air guide groove 6, but directly use indoor air for supplementary air. , the indoor air enters the supplementary air channel 15 through the supplementary air inlet 14, and then enters the heat exchange channel 13 after being purified by the purification module 8, and is mixed with the heat exchanged air to blow out the hanging angle air conditioner indoor unit together. Such a setting method can also reduce the noise generated by the indoor unit of the air conditioner, but it does not have the function of fresh air.

Embodiment Four

The fourth embodiment of the present invention will be described below with reference to FIG. 12 , wherein FIG. 12 is a cross-sectional view of the indoor unit of the hanging angle air conditioner in the fourth embodiment of the present invention.

As shown in Figure 12, on the premise that the other setting methods of Embodiment 1 remain unchanged, the indoor unit of the suspended angle air conditioner of the present invention may not be provided with a purification module 8, and directly use the fresh air pipe 7 and the air guide groove 6 to supplement the air. The outdoor air enters the supplementary air channel 15 through the fresh air pipe 7, and then enters the heat exchange channel 13, and is mixed with the heat-exchanged air and then blows out of the hanging angle air conditioner indoor unit. Such a setting method can also reduce the noise generated by the indoor unit of the air conditioner, but it does not have the function of purification.

So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings, but those skilled in the art will easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims (7)

1. A hanging angle air conditioner indoor unit, characterized in that, the hanging angle air conditioner indoor unit comprises a casing, an air inlet and an air outlet are provided on the casing, and a switch is formed between the air inlet and the air outlet. A heat channel, a heat exchanger and a blower are arranged in the heat exchange channel, The shell is also provided with a supplementary air inlet, a supplementary air channel is formed between the supplementary air inlet and the heat exchange channel, a supplementary fan is arranged in the supplementary air channel, and the hanging angle air conditioner indoor unit also includes A fresh air pipe, the first end of the fresh air pipe is connected to the supplementary air inlet, and the second end is connected to the outdoor, The indoor unit of the suspended angle air conditioner is set so that, driven by the supplementary fan and the supply fan, the outdoor fresh air is introduced into the supplementary air passage through the fresh air pipe, and then discharged to the heat exchange passage, and then combined with the The indoor air that enters the heat exchange channel from the air inlet and has been heat-exchanged by the heat exchanger is mixed and then discharged through the air outlet; The blower is a cross-flow fan, and the cross-flow fan includes a first drive motor and an impeller set, the first drive motor is connected to the impeller set and can drive the impeller set to rotate, and the impeller set is configured to be able to expand and contract along the axial direction of the first drive motor; The first drive motor is a double-shaft motor, and the impeller set includes a fixed impeller, a movable impeller and a telescopic drive mechanism, and the two output shaft sides of the double-shaft motor are respectively provided with one of the fixed impeller and one of the telescopic a drive mechanism and at least one movable impeller, the fixed impeller is connected to the output shaft, the movable impeller is slidably sleeved with the fixed impeller, and the distance between the telescopic drive mechanism and the biaxial motor The farthest movable impeller is connected and capable of driving the movable impeller to slide relative to the fixed impeller; The telescopic drive mechanism includes a second drive motor, a reel and a wire rope, a conductive slip ring is provided at one end of the fixed impeller near the biaxial motor, and the second drive motor is fixed inside the rotor of the conductive slip ring And it is electrically connected with the rotor, the reel is connected with the output shaft of the second drive motor, one end of the steel wire rope is fixedly connected with the reel, and the other end is connected with the farthest part of the double-axis motor. The movable impeller is fixedly connected, and an elastic member is arranged between two adjacent impellers, and the elastic member is configured to store elastic potential energy when the movable impeller shrinks relative to the fixed impeller. 2. The hanging angle air-conditioning indoor unit according to claim 1, characterized in that, the housing is further provided with an air guide groove, and the air guide groove cover is arranged at the inlet of the supplementary air and fixed to the housing Connected, a new air outlet is opened on the air guide groove, and the first end of the fresh air pipe is connected to the new air outlet. 3 . The indoor unit of the hanging angle air conditioner according to claim 1 , wherein the end of the supplementary air channel close to the heat exchange channel is a closing structure. 4 . 4. The hanging angle air conditioner indoor unit according to any one of claims 1 or 2, characterized in that, the fresh air pipe is also provided with a rotary joint. 5. The hanging angle air conditioner indoor unit according to claim 1, characterized in that, the number of the heat exchange channels is two, correspondingly the number of the supplementary air channels, the air outlets and the supplementary air inlets Each of the heat exchange passages is provided with one of the air supply fans, each of the air supply passages is provided with one of the supplementary fans, and the hanging angle air conditioner indoor unit also includes an atomizing element A humidification water tank, the humidification water tank separates the two heat exchange channels, The indoor unit of the suspended angle air conditioner is set so that when the blower fan and the make-up blower are running simultaneously, the indoor air in the heat exchange channel after heat exchange will first exchange heat with the humidification water tank, and then exchange heat with the make-up blower. The outdoor fresh air discharged from the air passage is mixed together, and finally discharged through the air outlet together with the water mist generated by the atomizing element. 6 . The hanging angle air-conditioning indoor unit according to claim 5 , wherein the two supplementary fans and the two supply fans are set to be able to operate independently of each other. 6 . 7. The hanging angle air conditioner indoor unit according to claim 1, wherein the elastic member is a spring.

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