CN215260108U - Indoor unit of air conditioner - Google Patents

Abstract

The utility model relates to an indoor unit of air conditioner, include: a housing; the additional air duct is provided with an air inlet and an air outlet, and the additional air duct and the machine shell are arranged at intervals so as to form a drainage air duct between the heat exchange airflow outlet and the air outlet; an air duct configured such that an inlet is located outside the cabinet to introduce additional air; and the additional fan is configured to have an inlet communicated with the outlet of the air pipe and an outlet communicated with the air inlet so as to controllably drive additional air to enter the air pipe, flow to the additional air duct and be discharged through the air outlet, so that the additional air flowing out through the air outlet is mixed with the indoor air flowing out through the drainage air duct and the heat exchange air flow discharged through the heat exchange air flow outlet, and the air guiding amount of the indoor unit of the air conditioner is improved.

Description

Indoor unit of air conditioner

Technical Field

The utility model relates to an air conditioning technology field especially relates to an indoor unit of air conditioner.

Background

With the popularization of air conditioners, users have higher and higher requirements on the comfort and the health of air supply. For the traditional air conditioner indoor unit, the air volume and the noise are two contradictory parameters, and the noise of the traditional air conditioner is increased while the air volume is increased, so that the maximum air volume is limited in a certain range. Meanwhile, the existing air conditioner has a single function of blowing air, only has a function of adjusting the indoor temperature, and cannot meet the use requirements of users. In addition, when the existing air conditioner is used for refrigerating or heating, the cold air temperature is low or the hot air temperature is high, and after the existing air conditioner is directly blown to a person, discomfort can be caused to the body, and user experience is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome at least one defect of prior art, provide an air conditioning indoor unit that induced air volume is big.

A further object of the utility model is to provide an air-out effect adjustable machine in air conditioning.

In order to achieve the above object, the utility model provides an indoor unit of air conditioner, include:

the heat exchanger comprises a shell, a heat exchanger and a heat exchange fan, wherein the shell is provided with a heat exchange airflow outlet, and the heat exchange airflow in the shell is driven to be sent out through the heat exchange airflow outlet by the heat exchange fan;

the additional air duct is provided with an air inlet and an air outlet and is arranged at intervals with the machine shell so as to form a drainage air duct between the heat exchange airflow outlet and the air outlet;

an air duct configured such that an inlet is located outside the cabinet to introduce additional air; and

and the additional fan is configured to have an inlet communicated with the outlet of the air pipe and an outlet communicated with the air inlet so as to controllably drive additional air to enter the air pipe, flow to the additional air duct and be sent out through the air outlet, so that the additional air flowing out through the air outlet is mixed with the indoor air flowing out through the drainage air duct and the heat exchange air flow sent out through the heat exchange air flow outlet.

Optionally, the inlet of the air duct extends to the outside of the room to introduce fresh air to the outside of the room; and/or

The inlet of tuber pipe is connected to functional module's gas outlet, and functional module includes one or several kinds in champignon module, degerming module, humidification module, the warm braw module.

Optionally, the indoor unit of an air conditioner further includes: and the air pipe joint is configured in a way that the inlet end is in butt joint with the outlet of the air pipe, and the outlet end is in butt joint with the inlet of the additional fan.

Optionally, the air-conditioning indoor unit is a wall-mounted air-conditioning indoor unit, and the heat exchange airflow outlet extends transversely to be arranged at the bottom of the front side of the casing;

the additional air duct is provided with a main body part extending along the transverse direction, an air outlet extending along the transverse direction is formed in the front side of the main body part, and the main body part is arranged below the machine shell at intervals so as to form a drainage air duct between the additional air duct and the machine shell.

Optionally, the additional air duct further has two side ends extending in the longitudinal direction, the two side ends are located at the left and right sides of the main body, and at least one side end is provided with an air inlet;

the additional fan is arranged above the air inlet.

Optionally, the additional fan comprises: a first cover, a second cover, a centrifugal fan and a motor; an accommodating cavity is defined between the first cover and the second cover, and the centrifugal fan and the motor are arranged in the accommodating cavity; and the bottom of the second cover extends downwards to form an outlet part, and the outlet part is butted with the air inlet.

Optionally, the additional fan further comprises: filtering with a screen; the first cover is provided with a filter screen inserting port, wherein the filter screen comprises a filter screen body and a filter screen inserting head, the filter screen body penetrates through the filter screen inserting port to be positioned at the airflow upstream of the centrifugal fan, and the filter screen inserting head protrudes out of the filter screen inserting port.

Optionally, the additional duct comprises: the upper cover plate and the lower cover plate are fixed with each other and define an airflow channel of the additional air duct; the upper cover plate is provided with a main body section extending along the left-right direction and the front-back direction, two side wall sections extending upwards from the left end and the right end of the main body section, a front wall section extending downwards from the front end of the main body section and a rear wall section extending downwards from the rear end of the main body section, an air inlet is formed in the side wall section of at least one upper cover plate, and an air outlet is formed in the front wall section of the upper cover plate;

the lower cover plate is provided with a main body section extending along the left-right direction and the front-back direction, two side wall sections extending upwards from the left end and the right end of the main body section and a rear wall section extending upwards from the rear end of the main body section; the main body section of upper cover plate and the main body section of lower cover plate are fixed, and two lateral wall sections of upper cover plate and two lateral wall sections of lower cover plate are fixed, and the back wall section of upper cover plate and the back wall section of lower cover plate are fixed mutually.

Optionally, the additional duct further comprises: a lower molding having a main body section extending in left-right and front-rear directions and two side wall sections extending upward from left and right ends of the main body section; the main body section of the lower molding is configured to cover the lower surfaces of the main body sections of the upper cover plate and the lower cover plate, and the side wall section of the lower molding is configured to cover the outer side surfaces of the side wall sections of the upper cover plate and the lower cover plate.

Optionally, a receiving groove extending in the transverse direction is further formed above and/or below the air outlet on the front side of the additional air duct, and a light bar is fixed in the receiving groove.

The utility model discloses an air-conditioning indoor unit is provided with an additional air duct, an air pipe and an additional fan, the inlet of the air pipe is arranged to be positioned outside the casing, the outlet is communicated with the inlet of the additional fan, so that the additional air outside the casing can be actively sucked into the additional air duct through the additional fan, the total air quantity of the indoor unit can be greatly improved, and the air supply distance is increased; the utility model also has a drainage channel, which can introduce indoor air into the heat exchange air flow, so that the air outlet flow of the indoor unit can not be overcooled or overheated; through setting up the tuber pipe for can select the type that gets into the additional air in additional wind channel according to user's needs, and then can adjust the constitution of air-out air current, promote user and use experience. And, through setting up additional wind channel and casing interval, thereby form the drainage wind channel between heat transfer air current export and air outlet, the both sides in drainage wind channel are heat transfer air current export and air outlet respectively, along with the air supply of heat transfer air current export and air outlet, the both sides in drainage wind channel all can produce the negative pressure, consequently, the air flow that introduces in the drainage wind channel under the negative pressure effect of both sides also can be bigger, the indoor air that introduces through the drainage wind channel mixes with the additional air of seeing off through the air outlet and the heat transfer air of seeing off through the heat transfer air current export, thereby the whole air induction volume and the whole air output of air conditioning indoor set have further been improved.

Further, the utility model discloses an indoor set of air conditioner connects through setting up the tuber pipe for the convenient assembly of tuber pipe and additional fan and dismantlement.

Further, the utility model discloses an indoor set of air conditioner is through offering the heat transfer airflow outlet in the front side bottom of casing along horizontal extension, set the additional wind channel to have along horizontal extension's main part and two side tip along longitudinal extension, set up the air intake on at least one side tip, the additional fan sets up in the top of air intake, only need one of them horizontal lateral part in the casing leave the space that holds the additional fan can, do not occupy the casing in the ascending space of front and back, the casing of having guaranteed whole indoor set of air conditioner is still complete, thereby make it keep better pleasing to the eye effect.

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

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a front view schematically illustrating an air conditioning indoor unit according to an embodiment of the present invention.

Fig. 2 is a front view schematically showing part of the components of the air conditioning indoor unit shown in fig. 1.

Fig. 3 is an exploded view of an additional air duct, an air duct, and an additional fan of the indoor unit of the air conditioner shown in fig. 1.

Fig. 4 is a schematic structural view of an additional air duct, an air duct, and an additional fan of the indoor unit of the air conditioner shown in fig. 1.

Fig. 5 is another schematic structural view of the additional air duct, the air duct, and the additional fan of the indoor unit of the air conditioner shown in fig. 1.

Fig. 6 is an exploded view of an additional duct of the indoor unit of the air conditioner shown in fig. 1.

Fig. 7 is a cross-sectional view of the air conditioning indoor unit shown in fig. 1 taken along a longitudinal section extending in the front-rear direction.

Fig. 8 is an exploded schematic view of the lifting mechanism of the indoor unit of the air conditioner shown in fig. 1.

Fig. 9 is an exploded view of the indoor unit of the air conditioner shown in fig. 1.

Detailed Description

The utility model provides an indoor unit of air conditioner 100, which can be a wall-mounted indoor unit of air conditioner 100 or an indoor unit of vertical air conditioner. Fig. 1 is a front view schematically illustrating an air conditioning indoor unit 100 according to an embodiment of the present invention. Fig. 2 is a schematic front view of part of the components of the air conditioning indoor unit 100 shown in fig. 1.

Referring to fig. 1 and 2, an air conditioning indoor unit 100 according to an embodiment of the present invention may generally include: a cabinet 10, an additional air duct 40, an air duct 70, and an additional fan 50. The casing 10 is provided with a heat exchange airflow outlet 11, and a heat exchanger 20 and a heat exchange fan 30 are disposed inside the casing to make the heat exchange airflow in the casing 10 to be sent out through the heat exchange airflow outlet 11 by the heat exchange fan 30. The additional air duct 40 is provided with an air inlet 42 and an air outlet 41, and the additional air duct 40 and the casing 10 are spaced to form a flow guiding air duct 80 between the heat exchange air flow outlet 11 and the air outlet 41. The air duct 70 is configured such that an inlet is located outside the cabinet 10 to introduce additional air. The additional blower 50 is configured to have an inlet in communication with the outlet of the air duct 70 and an outlet in communication with the air inlet 42 to controllably drive additional air into the air duct 70 to flow toward the additional air duct 40 and out through the air outlet 41, so that the additional air flowing out through the air outlet 41 is mixed with the indoor air flowing out through the air guiding duct 80 and the heat-exchange air flowing out through the heat-exchange air flow outlet 11.

The utility model discloses indoor unit 100 of air conditioner has additional wind channel 40, tuber pipe 70 and additional fan 50, sets to be located the casing 10 outside through the import with tuber pipe 70, and the export is linked together with additional fan 50's entry for accessible additional fan 50 initiatively inhales the additional wind channel 40 with the outside additional air of casing 10 in, can make indoor unit 100's the total amount of wind improve greatly, and the air supply distance increases. The utility model discloses machine 100 is indoor in air conditioning still is formed with drainage channel 80, can introduce the room air in the heat transfer air current for the air-out air current of indoor set 100 can not subcool or overheated. Meanwhile, by arranging the air pipe 70, the type of the additional air entering the additional air duct 40 can be selected according to the user requirement, the composition of the air outlet flow can be adjusted, and the user experience can be improved. And, through setting up additional wind channel 40 and casing 10 at an interval, thereby form drainage wind channel 80 between heat transfer air outlet 11 and air outlet 41, the both sides of drainage wind channel 80 are heat transfer air outlet 11 and air outlet 41 respectively, along with the air supply of heat transfer air outlet 11 and air outlet 41, the both sides of drainage wind channel 80 can produce the negative pressure, therefore, the air flow that introduces in drainage wind channel 80 under the negative pressure effect of both sides can also be bigger, the indoor air introduced through drainage wind channel 80 mixes with the additional air that sends out through air outlet 41 and the heat transfer air that sends out through heat transfer air outlet 11, thereby further improved the whole air induction volume and the whole air supply volume of air conditioning indoor set 100.

The utility model discloses additional air, room air be the air that does not pass through the heat transfer of heat transfer fan 30 relative with the heat transfer air current. The additional air may be indoor air in the environment where the indoor unit 100 is located, outdoor fresh air isolated from the environment where the indoor unit 100 is located, or other functional gas, such as aromatherapy gas, sterilization gas, humidification gas, heating gas, or the like. In some embodiments, the inlet of the duct 70 extends to the exterior of the room to introduce fresh outdoor air; and/or the inlet of the air pipe 70 is connected to the air outlet of the functional module, and the functional module may include one or more of an aromatherapy module, a sterilization module, a humidification module, and a warm air module. The utility model discloses indoor set 100 of air conditioner introduces outdoor new trend through extending the import of tuber pipe 70 to the outdoor for this indoor set 100 of air conditioner's air-out air current includes the outdoor new trend that flows through air outlet 41, the indoor air that flows through drainage wind channel 80 and the heat transfer air current that sends out through heat transfer air outlet 11 essentially, can be when adjusting indoor ambient temperature to indoor introduction new trend, further promotes user's use and experiences. The utility model discloses machine 100 is in air conditioning is through the access connection to functional module with tuber pipe 70 for this machine 100 is in air conditioning's air-out air current includes the auxiliary gas who has certain function through the outflow of air outlet 41 essentially, the indoor air that flows through drainage wind channel 80 and the heat transfer air current that sends out through heat transfer air outlet 11, can make this machine 100 is in air conditioning's air-out air current have corresponding function when adjusting indoor ambient temperature, for example, champignon gas can make indoor fragrant smell that keeps, degerming gas can the degerming, humidifying gas can increase indoor humidity, heating installation can improve indoor intensification efficiency, and then can further promote user's use experience.

In some embodiments, the indoor unit 100 of the present invention further includes: an air duct joint 60 is configured with an inlet end for interfacing with an outlet of the air duct 70 and an outlet end for interfacing with an inlet of the additional blower 50. The utility model discloses indoor unit 100 of air conditioner is through setting up tuber pipe joint 60 for tuber pipe 70 and additional fan 50 make things convenient for assembly and dismantlement.

Fig. 3 is an exploded view of the additional air duct 40, the air duct 70, and the additional fan 50 of the indoor unit 100 of the air conditioner shown in fig. 1. Fig. 4 is a schematic structural view of the additional air duct 40, the air duct 70, and the additional fan 50 of the indoor unit 100 of the air conditioner shown in fig. 1. Fig. 5 is another schematic structural view of the additional air duct 40, the air duct 70, and the additional fan 50 of the indoor unit 100 of the air conditioner shown in fig. 1. Fig. 7 is a cross-sectional view of the air conditioning indoor unit 100 shown in fig. 1, taken along a longitudinal section extending in the front-rear direction. Fig. 9 is an exploded schematic view of the air conditioning indoor unit 100 shown in fig. 1.

In some embodiments, the air conditioning indoor unit 100 according to the present invention is a wall-mounted air conditioning indoor unit 100, and is typically an air conditioning indoor unit 100 that is hung on a wall or other support location. The heat exchange airflow outlet 11 extends along the transverse direction and is arranged at the bottom of the front side of the machine shell 10. The additional air duct 40 has a main body 401 extending in the transverse direction, an air outlet 41 extending in the transverse direction is opened at the front side of the main body 401, and the main body 401 is disposed below the machine casing 10 at intervals to form a drainage air duct 80 between the additional air duct 40 and the machine casing 10.

As shown in fig. 1, 7 and 9, the casing 10 is provided with a heat exchange airflow outlet 11 extending along the transverse direction of the casing 10, and a heat exchanger 20 and a heat exchange fan 30 are arranged in the casing, and the heat exchanger 20 can exchange heat with airflow flowing through the heat exchanger, so as to generate heat exchange airflow. The heat exchange fan 30 can promote the heat exchange airflow in the casing 10 to be sent out through the heat exchange airflow outlet 11. Specifically, as shown in fig. 9, the cabinet 10 may include a cover 13, a skeleton 14, and side end caps 16 at both lateral sides. A front panel 15 is provided on the front side of the housing 13, and a panel liner 151 may be provided between the front panel 15 and the housing 13. Side end covers 16 are provided with side decorative plates 17. The top of the housing 13 is provided with a main air inlet 12. The air flow entering the casing 10 through the main air inlet 12 exchanges heat with the heat exchanger 20 and then reaches the heat exchange air flow outlet 11. The framework 14 is used to support the heat exchanger 20 and the heat exchange fan 30. The housing 10 may also include a volute tongue 21 integrated into the skeleton 14 defining an air flow passage therebetween. The indoor unit 100 of the air conditioner may further include a filter element net 18, an air deflector 19 disposed at the heat exchange airflow outlet 11, a swing blade and a connecting rod 22, and an electrical box 23. The heat exchanger 20 may be a tri-fold heat exchanger. The heat exchange fan 30 may be a cross flow fan, including a cross flow fan 31 and a motor 32, disposed at the rear lower side of the heat exchanger 20.

The utility model discloses indoor unit of air conditioner 100 is through setting additional wind channel 40 to have along transversely extending's main part 401, main part 401 sets up in the below of casing 10 and sets up with casing 10 interval certain distance, can make the heat transfer air outlet 11 that is in casing 10 front side bottom and the adjacent setting of air outlet 41 that is in the front side of main part 401 in additional wind channel 40, be convenient for mix better from the heat transfer air current that heat transfer air outlet 11 sent out and the additional air that sends out from air outlet 41, thereby ensure that the air-out of indoor unit of air conditioner 100 is softer. The additional air duct 40 is provided with an air outlet 41 extending along the transverse direction of the casing 10, so that the air supply range of the air-conditioning indoor unit 100 in the transverse direction can be expanded. The heat exchange airflow outlet 11 and the air outlet 41 extend substantially the same length in the transverse direction to enhance mixing between the two airflows delivered from the two air outlets.

In some embodiments, the additional air duct 40 of the indoor unit 100 of the present invention further has two side end portions 402 extending along the longitudinal direction, the two side end portions 402 are located at the left and right sides of the main body portion 401, and at least one side end portion 402 is provided with the air inlet 42; the additional fan 50 is disposed above the air inlet 42. The utility model discloses additional wind channel 40 still has two side tip 402 along longitudinal extension, set up air intake 42 on at least one side tip 402, additional fan 50 sets up in air intake 42's top, only need one of them horizontal lateral part in casing 10 leave hold additional fan 50 the space can, do not occupy casing 10 in the ascending space in front and back direction, the casing 10 of having guaranteed whole air conditioning indoor set 100 still is complete to make it keep better pleasing to the eye effect. And simultaneously, the utility model discloses clearance between the below of additional wind channel 40 and casing 10 forms drainage wind channel 80, and these three air currents of the heat transfer air current that heat transfer airflow outlet 11 sent out, the additional air that air outlet 41 sent out and the indoor air that drainage wind channel 80 sent out are close to each other, are convenient for better mix gentle breeze.

In some embodiments, the additional fan 50 of the indoor unit 100 of the present invention includes a first cover 51, a second cover 52, a centrifugal fan 53, and a motor (not shown in the drawings); wherein a receiving chamber is defined between the first cover 51 and the second cover, and the centrifugal fan 53 and the motor are disposed in the receiving chamber; and the bottom of the second cover 52 extends downwards to form an outlet part 520, and the outlet part 520 is butted with the air inlet 42. The utility model discloses indoor unit of air conditioner 100 is through setting additional fan 50 to including first lid 51, second lid 52, centrifugal fan 53 and motor, and the bottom downwardly extending of second lid 52 forms the export portion 520 with the butt joint of air intake 42, can guarantee that additional fan 50 and additional wind channel 40's connection is firm. As shown in fig. 3, the inlet portion 510 extending downward from the bottom of the first cover 51 and abutting against the outlet section of the air duct joint 60 can ensure the stable connection of the additional blower 50 with the air duct 70. With continued reference to fig. 3, the supplemental blower 50 also includes a bracket 54 for securing the centrifugal fan 53. The flow paths of the additional air in the air duct 70, the additional fan 50, and the additional air duct 40 are shown by arrows in fig. 4 and 5.

In some embodiments, the additional fan 50 of the indoor unit 100 of the present invention further includes a filter screen 55; the first lid 51 is provided with a filter plug 511, wherein the filter 55 comprises a filter body 551 and a filter plug 552, the filter body 551 passes through the filter plug 511 and is located at the upstream of the centrifugal fan 53, and the filter plug 552 protrudes out of the filter plug 511. The screen 55 is particularly desirable when the additional air is fresh outdoor air. The utility model discloses additional fan 50 of machine 100 in air conditioning is through having seted up filter screen interface 511 on first lid 51, sets up filter screen 55 to include filter screen body 551 and filter screen plug 552, can make things convenient for the installation and the dismantlement of filter screen 55 to maintain.

Fig. 6 is an exploded view of the additional duct 40 of the indoor unit 100 of the air conditioner shown in fig. 1. Fig. 7 is a cross-sectional view of the air conditioning indoor unit 100 shown in fig. 1, taken along a longitudinal section extending in the front-rear direction.

As shown in fig. 6, in some embodiments, the additional air duct 40 of the present invention includes: an upper cover plate 43 and a lower cover plate 44, the upper cover plate 43 and the lower cover plate 44 being fixed to define an air flow passage of the additional air duct 40. The upper cover plate 43 has a main body section 431 extending in the left-right direction and the front-rear direction, two side wall sections 432 extending upward from the left and right ends of the main body section 431, a front wall section 433 extending downward from the front end of the main body section 431, and a rear wall section 434 extending downward from the rear end of the main body section 431, and the air inlet 42 is opened in the side wall section 432 of at least one upper cover plate 43, and the air outlet 41 is opened in the front wall section 433 of the upper cover plate 43. The lower cover plate 44 has a main body section 441 extending in the left-right direction and the front-rear direction, two side wall sections 442 extending upward from the left and right ends of the main body section 441, and a rear wall section 443 extending upward from the rear end of the main body section 441. The main body section 431 of the upper cover plate 43 and the main body section 441 of the lower cover plate 44 are fixed to each other, the two side wall sections 432 and 442 of the upper cover plate 43 and the lower cover plate 44 are fixed to each other, and the rear wall section 434 and 443 of the upper cover plate 43 and the lower cover plate 44 are fixed to each other. The upper cover plate 43 and the lower cover plate 44 of the additional air duct 40 of the embodiment of the present invention can realize stable connection.

With continued reference to fig. 6 and 7, the side wall section 432 of the at least one upper cover plate 43 of the additional duct 40 of the embodiment of the present invention includes an inner side wall section 432a and an outer side wall section 432b spaced apart in the left-right direction, and the air inlet 42 is defined between the inner side wall section 432a and the outer side wall section 432b in the up-down direction. The main body section 431 of the upper cover plate 43 and the main body section 441 of the lower cover plate 44 are screwed. Specifically, a plurality of fixing posts 444 are correspondingly formed on the main body segment 431 of the upper cover plate 43 and the main body segment 441 of the lower cover plate 44, and the fixing posts 444 are connected by a fixing member to fix the main body segment 431 of the upper cover plate 43 and the main body segment 441 of the lower cover plate 44 by screws. The two side wall sections 432 of the upper cover plate 43 and the two side wall sections 442 of the lower cover plate 44 are snap-fitted. Specifically, the end of the side wall section 442 of the lower cover plate 44 is formed with a hook 446, the outer side wall section 432b of the side wall section 432 of the upper cover plate 43 is correspondingly provided with a notch (not shown), and the hook 446 is fitted in the notch to fix the side wall section 432 of the upper cover plate 43 and the side wall section 442 of the lower cover plate 44 in a clamping manner. The rear wall section 434 of the upper cover plate 43 and the rear wall section 443 of the lower cover plate 44 are snap-fitted. Specifically, the rear wall section 443 of the lower cover plate 44 is further formed with a plurality of fixing openings 445 at intervals in the lateral direction, the inner side surface of the rear wall section 434 of the upper cover plate 43 is provided with a protrusion 438 at a corresponding position, and the protrusion 438 is fitted into the fixing openings 445 to snap-fix the rear wall section 434 of the upper cover plate 43 and the rear wall section 443 of the lower cover plate 44.

In some embodiments, the additional air duct 40 of the present invention further includes: a lower molding 45 having a main body section 451 extending in the left-right direction and the front-rear direction and two side wall sections 452 extending upward from the left and right ends of the main body section 451; the body section 451 of the lower molding 45 is configured to cover the lower surfaces of the body sections 431 and 441 of the upper and lower cover plates 43 and 44, and the sidewall section 452 of the lower molding 45 is configured to cover the outer surfaces of the sidewall sections 432 and 442 of the upper and lower cover plates 43 and 44. The appearance of the entire indoor unit 100 can be further improved by providing the lower molding 45. The top end of the lower molding 45 may be adjacent to the lower end of the side molding 17. The front and rear portions of the upper surface of the main body section 451 of the lower molding strip 45 may be provided with a plurality of hooks 453 at intervals in the lateral direction to fix the lower molding strip 45 to the upper cover plate 43.

In some embodiments, the front side of the additional air duct 40 of the present invention is further formed with a receiving groove 435 extending in the transverse direction above and/or below the air outlet 41, and the light bar 48 is fixed in the receiving groove 435. Through set up lamp strip 48 on additional wind channel 40, can promote the utility model discloses the pleasing to the eye degree of indoor set 100 of the embodiment.

Since the outlet 41 is located at the front side of the additional air duct 40 and extends in the transverse direction, the flow direction of the air flowing into the additional air duct 40 from the inlet 42 is perpendicular to the flow direction of the air flowing out of the additional air duct 40. That is, the airflow needs to be reversed by approximately 90 degrees within the additional air chute 40. In order to ensure uniform air outlet in the transverse direction of the air outlet 41, a plurality of flow guiding ribs (not shown) may be disposed inside the additional air duct 40 at intervals in the transverse direction to guide the additional air flowing into the additional air duct 40 in the transverse direction to the air outlet 41. In other words, the additional air flowing transversely in the additional air duct 40 can be guided to the air outlet 41 more uniformly by the guide ribs, so that the heat exchange airflow flowing out from any position of the heat exchange airflow outlet 11 can be mixed with the additional air flowing out from the air outlet 41, and the air outlet uniformity of the indoor unit 100 of the air conditioner in the transverse direction is improved in the aspects of the air outlet temperature and the air outlet quantity. The flow guiding ribs may have a shape that is convexly curved toward a side away from the windward side thereof, and thus, the flow guiding ribs may have a capability of retaining a preset amount of airflow at the windward side thereof (the side where the windward side is located), and the preset amount of airflow may flow forward to the air outlet 41 under the guiding action of the flow guiding ribs, thereby achieving uniform air outlet of the air outlet 41 in the lateral direction under the cooperation of the plurality of flow guiding ribs.

As mentioned above, the outlet airflow of the indoor unit 100 according to the embodiment of the present invention may include the additional air flowing out through the air outlet 41, the indoor air flowing out through the air guiding duct 80, and the heat exchange airflow sent out through the heat exchange airflow outlet 11. In some embodiments, the additional duct 40 of the present invention is also configured to move up and down relative to the housing 10, so that the outlet airflow can be adjusted. The change of the gap between the additional air duct 40 and the casing 10 affects the drainage effect of the drainage air duct 80, and further affects the proportion of each part of the air flow in the outlet air flow, the mixing effect of each part of the air flow, the whole air guiding amount and the whole air supplying amount. Therefore, different air outlet effects can be obtained by adjusting the up-and-down movement of the additional air duct 40, and the user experience is further improved.

As shown in fig. 2 and 8, the indoor unit 100 of the present invention further includes a lifting mechanism 90 disposed inside the casing 10 and configured to be connected to the side end 402 to drive the additional air duct 40 to move up and down relative to the casing 10. The lifting mechanism 90 may include a gear 91, a rack 92, a motor 93, a gear box and a roller 95, wherein the rack 92 extends in the up-down direction and is fixed to the side end 402, the gear 91 is engaged with the rack 92, and the motor 93 drives the gear 91 to rotate so as to drive the additional air duct 40 to move up and down. The two elevating mechanisms 90 are respectively disposed inside the two side walls of the casing 10 and respectively connected to the two side end portions 402. The rack 92 includes a toothed portion 921, a non-toothed portion 922, and an insertion portion 923. The toothed portion 921 meshes with the gear 91, the non-toothed portion 922 is located below the toothed portion 921, and the plug portion 923 is located below the non-toothed portion 922. The side end portion 402 and the toothless portion 922 are provided with fixing holes 437 and 924, respectively, and the rack 92 and the side end portion 402 are fixed by fixing members inserted through the fixing holes 437 and 924 of the side end portion 402 and the toothless portion 922. The side end 402 is further provided with a plug-in interface 436 along the vertical direction, and the plug-in part 923 is inserted into the plug-in interface 436; a hook is formed at the end of the plug portion 923 to be engaged with the side end portion 402. The gear box includes a box body 941 and a cover body 942 fixed inside the casing 10, the motor 93 is fixed inside the box body 941, a roller slot 925 is further formed on the toothed portion 921, a roller shaft 943 is correspondingly arranged on the box body 941, and the roller shaft 943 is sleeved with the roller 95.

It should be further understood by those skilled in the art that the terms "upper", "lower", "front", "rear", and the like used in the embodiments of the present invention to indicate the orientation or the positional relationship are based on the actual usage state of the indoor unit of the air conditioner, and these terms are only used for convenience of description and understanding of the technical solution of the present invention, but do not indicate or imply that the device referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present invention.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. An indoor unit of an air conditioner, comprising:

the heat exchanger comprises a shell, a heat exchanger and a heat exchange fan, wherein the shell is provided with a heat exchange airflow outlet, and the heat exchange airflow in the shell is driven to be sent out through the heat exchange airflow outlet by the heat exchange fan;

the additional air duct is provided with an air inlet and an air outlet, and the additional air duct and the machine shell are arranged at intervals so as to form a drainage air duct between the heat exchange airflow outlet and the air outlet;

an air duct configured such that an inlet is located outside the cabinet to introduce additional air; and

and the additional fan is configured to have an inlet communicated with the outlet of the air pipe and an outlet communicated with the air inlet so as to controllably drive additional air to enter the air pipe, flow to the additional air duct and be sent out through the air outlet, so that the additional air flowing out through the air outlet is mixed with the indoor air flowing out through the drainage air duct and the heat exchange air flow sent out through the heat exchange air flow outlet.

2. An indoor unit of an air conditioner according to claim 1,

the inlet of the air pipe extends to the outside so as to introduce outdoor fresh air; and/or

The inlet of tuber pipe is connected to functional module's gas outlet, functional module includes one or several kinds in champignon module, degerming module, humidification module, the warm braw module.

3. An indoor unit of an air conditioner according to claim 1, further comprising:

and the air pipe joint is configured in a way that the inlet end is in butt joint with the outlet of the air pipe, and the outlet end is in butt joint with the inlet of the additional fan.

4. An indoor unit of an air conditioner according to claim 1,

the air-conditioning indoor unit is a wall-mounted air-conditioning indoor unit, and the heat exchange airflow outlet extends transversely and is formed in the bottom of the front side of the shell;

the additional air duct is provided with a main body part extending along the transverse direction, the front side of the main body part is provided with the air outlet extending along the transverse direction, and the main body part is arranged below the machine shell at intervals so as to form the drainage air duct between the additional air duct and the machine shell.

5. An indoor unit of an air conditioner according to claim 4,

the additional air duct is also provided with two side ends extending along the longitudinal direction, the two side ends are positioned at the left side and the right side of the main body part, and at least one side end is provided with the air inlet;

the additional fan is arranged above the air inlet.

6. An indoor unit of an air conditioner according to claim 5,

the additional fan includes: a first cover, a second cover, a centrifugal fan and a motor; wherein an accommodating cavity is defined between the first cover and the second cover, and the centrifugal fan and the motor are arranged in the accommodating cavity; and the bottom of the second cover extends downwards to form an outlet part, and the outlet part is butted with the air inlet.

7. An indoor unit of an air conditioner according to claim 6,

the additional fan further includes: filtering with a screen; the first cover is provided with a filter screen inserting port, the filter screen comprises a filter screen body and a filter screen inserting head, the filter screen body penetrates through the filter screen inserting port to be located at the air flow upstream of the centrifugal fan, and the filter screen inserting head protrudes out of the filter screen inserting port.

8. An indoor unit of an air conditioner according to claim 4,

the additional duct includes: the upper cover plate and the lower cover plate are fixed with each other and define an airflow channel of the additional air duct; the upper cover plate is provided with a main body section extending along the left-right direction and the front-back direction, two side wall sections extending upwards from the left end and the right end of the main body section, a front wall section extending downwards from the front end of the main body section and a rear wall section extending downwards from the rear end of the main body section, the side wall section of at least one upper cover plate is provided with the air inlet, and the front wall section of the upper cover plate is provided with the air outlet;

the lower cover plate is provided with a main body section extending along the left-right direction and the front-back direction, two side wall sections extending upwards from the left end and the right end of the main body section, and a rear wall section extending upwards from the rear end of the main body section; the main body section of the upper cover plate is fixed with the main body section of the lower cover plate, the two side wall sections of the upper cover plate are fixed with the two side wall sections of the lower cover plate, and the rear wall section of the upper cover plate is fixed with the rear wall section of the lower cover plate.

9. An indoor unit of an air conditioner according to claim 8,

the additional air duct further includes: a lower molding having a main body section extending in left-right and front-rear directions and two side wall sections extending upward from left and right ends of the main body section; the main body section of the lower molding is configured to cover the lower surfaces of the main body sections of the upper cover plate and the lower cover plate, and the side wall section of the lower molding is configured to cover the outer side surfaces of the side wall sections of the upper cover plate and the lower cover plate.

10. An indoor unit of an air conditioner according to claim 4,

the front side of the additional air duct is provided with a containing groove which extends along the transverse direction above and/or below the air outlet, and a light bar is fixed in the containing groove.

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