CN219934110U

CN219934110U - Indoor unit of air conditioner

Info

Publication number: CN219934110U
Application number: CN202320801064.6U
Authority: CN
Inventors: 李启文
Original assignee: Hisense Guangdong Air Conditioning Co Ltd
Current assignee: Hisense Guangdong Air Conditioning Co Ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-10-31
Anticipated expiration: 2033-04-11

Abstract

The utility model discloses an air conditioner indoor unit, which comprises: a housing; a heat exchanger; the heat transfer fan, the heat transfer fan includes: a heat exchange fan and a motor; the base is provided with a first inserting and positioning part and a first clamping part which are mutually spaced; the motor cover is provided with a second inserting and positioning part and a second clamping part, the second inserting and positioning part and the first inserting and positioning part are rotatably inserted and positioned to be matched, and the second clamping part and the first clamping part are clamped to be matched. Therefore, through setting up first grafting location portion and first joint portion of mutual interval on the base, set up second grafting location portion and second joint portion on the motor cover, only need make first grafting location portion and second grafting location portion grafting location earlier, rotate the motor cover again, make first joint portion and second joint portion mutual joint location, just can realize the connection between motor cover and the base, not only reliable and stable, the dismouting of being convenient for moreover.

Description

Indoor unit of air conditioner

Technical Field

The utility model relates to the technical field of air conditioners, in particular to an indoor unit of an air conditioner.

Background

Along with the development of science and technology, the air conditioner can adjust indoor temperature with it, promotes user's comfort level's advantage and obtains user's favor gradually. A motor is arranged in the air conditioner and is in transmission connection with the heat exchange fan to provide driving force for the heat exchange fan. The motor is generally arranged on the base of the air conditioner, and the motor cover is arranged on the outer side of the motor and is connected with the base, so that the protection effect on the cover of the motor is realized, and the motor structure is prevented from being damaged.

In the related art, the motor cover and the base are fixed by bolts, so that the stability of connection between the motor cover and the base can be ensured, but the motor cover is inconvenient to assemble and disassemble, and the assembly efficiency of the whole air conditioner is low.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide an indoor unit of an air conditioner, in which the connection between the motor cover and the base of the indoor unit of the air conditioner is stable and reliable, and the assembly and disassembly are convenient.

According to an embodiment of the utility model, an indoor unit of an air conditioner comprises: the shell is provided with an air inlet and an air outlet; the heat exchanger is arranged in the shell and corresponds to the air inlet; the heat exchange fan, the heat exchange fan set up in the casing, the heat exchange fan with the heat exchanger interval sets up, the heat exchange fan includes: the motor is electrically connected with the heat exchange fan, the heat exchange fan is operated to introduce air flow outside the shell into the shell through the air inlet, heat exchange is carried out through the heat exchanger to form heat exchange air flow, and the heat exchange air flow is output to the outside of the shell through the air outlet under the drive of the heat exchange fan; the base is arranged in the shell and is arranged at intervals with the heat exchanger, the motor and the heat exchange fan are arranged on the base, a first inserting and positioning part and a first clamping part are arranged on the base, and the first inserting and positioning part and the first clamping part are mutually spaced; the motor cover is arranged in the shell and covers the outer side of the motor, a second inserting and positioning part and a second clamping part are arranged on the motor cover, the second inserting and positioning part is rotatably inserted and positioned to be matched with the first inserting and positioning part, and the second clamping part is matched with the first clamping part in a clamping way.

Therefore, through setting up first grafting location portion and first joint portion of mutual interval on the base, set up second grafting location portion and second joint portion on the motor cover, only need make first grafting location portion and second grafting location portion grafting location earlier, rotate the motor cover again, make first joint portion and second joint portion mutual joint location, just can realize the connection between motor cover and the base, not only reliable and stable, the dismouting of being convenient for moreover.

In some examples of the present utility model, one of the first plug positioning portion and the second plug positioning portion is a plug, and the other is a plug hole, and the plug is rotatably plug-fitted with the plug hole.

In some examples of the utility model, the eye-splice is C-shaped.

In some examples of the present utility model, the first plugging positioning portion and the first clamping portion are disposed at intervals in an up-down direction, and the first plugging positioning portion and the second plugging positioning portion may be plugged and positioned rotatably in the up-down direction.

In some examples of the present utility model, one of the first clamping portion and the second clamping portion is an elastic buckle, and the other is a clamping hole, and the elastic buckle and the clamping hole are in elastic clamping fit.

In some examples of the present utility model, the first clamping portion is an elastic buckle, the second clamping portion is a clamping hole, a clamping portion is disposed on one side of the elastic buckle, a protruding rib is disposed on a circumference of the clamping hole, and the clamping portion and the protruding rib are in clamping fit.

In some examples of the present utility model, a limiting rib is disposed on a side of the elastic buckle facing away from the buckle portion, the limiting rib is disposed in an extending manner in a length direction of the elastic buckle, the limiting ribs are plural, and the limiting ribs are disposed at intervals in a width direction of the elastic buckle.

In some examples of the present utility model, a first limiting portion is disposed on the base, a second limiting portion is disposed on the motor cover, one of the first limiting portion and the second limiting portion is a limiting post, and the other limiting post extends into the limiting groove and is in limiting fit with the limiting groove.

In some examples of the present utility model, the first limiting portions are plural, the first limiting portions are disposed on the base at intervals, the second limiting portions are plural, the second limiting portions are disposed on the motor cover at intervals, and the first limiting portions and the second limiting portions are in one-to-one correspondence.

In some examples of the present utility model, the number of the first limiting parts is three, and the connecting lines of the three first limiting parts are triangular.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic view of an indoor unit of an air conditioner according to an embodiment of the present utility model;

fig. 2 is a partial schematic view of an indoor unit of an air conditioner according to an embodiment of the present utility model;

fig. 3 is a partial exploded view of an indoor unit of an air conditioner according to an embodiment of the present utility model;

fig. 4 is a partial schematic view of an indoor unit of an air conditioner according to another view angle of an embodiment of the present utility model;

FIG. 5 is a partial cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present utility model along the A-A direction;

FIG. 6 is a schematic view of area A of FIG. 5;

FIG. 7 is a schematic view of region B of FIG. 5;

fig. 8 is a partial sectional view of an indoor unit of an air conditioner according to an embodiment of the present utility model in a B-B direction;

FIG. 9 is a schematic view of region C of FIG. 8;

FIG. 10 is a partial schematic view of a base according to an embodiment of the utility model;

FIG. 11 is a schematic view of a motor cover according to an embodiment of the utility model;

fig. 12 is a schematic view of another view of a motor cover according to an embodiment of the present utility model.

Reference numerals:

100. an air conditioner indoor unit;

10. a housing; 11. an air outlet;

20. a base; 21. a first plugging positioning part; 22. a first clamping part; 221. a fastening part; 222. a limit rib; 23. a first limit part;

30. a motor cover; 31. a second inserting positioning part; 32. a second clamping part; 321. convex ribs; 33. a second limit part;

40. and a motor.

Detailed Description

Embodiments of the present utility model will be described in detail below, by way of example with reference to the accompanying drawings.

An air conditioner indoor unit 100 according to an embodiment of the present utility model is described below with reference to fig. 1 to 12.

As shown in connection with fig. 1, an indoor unit 100 of an air conditioner according to the present utility model may mainly include: the casing 10, heat exchanger and heat exchange fan, wherein, heat exchanger and heat exchange fan all set up in casing 10, and casing 10 can play the cover to establish guard action to heat exchanger and heat exchange fan, prevents that the erosion of external foreign matter or the impact of external force from leading to the damage of heat exchanger and heat exchange fan to can promote the structural reliability of air conditioner indoor set 100, guarantee that air conditioner indoor set 100 can normally work.

Further, an air inlet and an air outlet 11 are arranged on the casing 10, the heat exchanger corresponds to the air inlet, the heat exchange fan and the heat exchanger are arranged at intervals, and the heat exchange fan can mainly comprise: the motor 40 is electrically connected with the heat exchange fan, so that when the air conditioner indoor unit 100 works, the motor 40 can drive the heat exchange fan to operate, the heat exchange fan can introduce air flow outside the machine shell 10 into the machine shell 10 through the air inlet, heat exchange is carried out through the heat exchanger to form heat exchange air flow, and the heat exchange air flow can be output to the outside of the machine shell 10 through the air outlet 11 under the drive of the heat exchange fan, so that the normal work of the air conditioner indoor unit 100 can be realized.

Specifically, the indoor unit 100 of the air conditioner of the present utility model is operated together with the outdoor unit of the air conditioner, and the heat exchanger may be an evaporator or a condenser, and the heat exchanger corresponding to the outdoor unit of the air conditioner is a condenser or an evaporator, and the refrigerating cycle of the air conditioner is performed by using the compressor, the expansion valve, the condenser and the evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies a refrigerant to the air that has been conditioned and heat exchanged. The compressor compresses a refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process. The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator may achieve a cooling effect by exchanging heat with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner outdoor unit and the air conditioner indoor unit 100 operate together throughout the cycle, and the temperature of the indoor space can be adjusted. Further, the heat exchange fan of the utility model can accelerate the flow velocity of wind flowing through the heat exchanger, thereby improving the heat exchange efficiency of the air conditioner indoor unit 100 and the working performance of the air conditioner indoor unit 100.

As shown in fig. 2 to 12, the air conditioner indoor unit 100 may further include: base 20 and motor cover 30, base 20 sets up in casing 10 and with the heat exchanger interval setting, motor 40 and heat exchange fan all set up on base 20, be provided with first grafting location portion 21 and first joint portion 22 on the base 20, first grafting location portion 21 and first joint portion 22 interval each other, motor cover 30 sets up in casing 10 and the lid is established in the outside of motor 40, be provided with second grafting location portion 31 and second joint portion 32 on the motor cover 30, second grafting location portion 31 and first grafting location portion 21 rotationally peg graft location cooperation, second joint portion 32 and first joint portion 22 joint cooperation.

Specifically, the base 20 and the motor cover 30 are arranged in the casing 10, so that the base 20 and the heat exchanger are arranged at intervals, and the casing 10 can also play a role in protecting the base 20 and the motor cover 30 on the premise that the arrangement positions of all the components in the casing 10 are more uniform and reasonable, and the structural reliability of the base 20 and the motor cover 30 can be improved.

Further, through all setting up motor 40 and heat exchange fan on base 20, base 20 can regard as motor 40 and heat exchange fan's mounting structure like this, for motor 40 and heat exchange fan provide the mounting point, can guarantee the stability that motor 40 and heat exchange fan set up in casing 10, and through setting up motor cover 30 lid in motor 40's outside, motor cover 30 and base 20 can play the effect of cover setting up the protection to motor 40 like this, not only can further restrict motor 40's removal, guarantee motor 40's setting stability, and can prevent erosion motor 40 such as steam that the indoor set 100 of air conditioner produced during operation, can improve motor 40's structural reliability, thereby can further guarantee the normal work of indoor set 100 of air conditioner.

Further, through setting up first grafting location portion 21 and the first joint portion 22 of mutual interval on base 20 to set up second grafting location portion 31 and second joint portion 32 on motor cover 30, when locating motor cover 30 the motor 40 outside, can make first grafting location portion 31 and first grafting location portion 21 carry out grafting location cooperation earlier, first grafting location portion 21 and second grafting location portion 31 can play the locate action, and because the grafting location cooperation of second grafting location portion 31 and first grafting location portion 21 is rotatable grafting location cooperation, can make second joint portion 32 and first joint portion 22 carry out the joint cooperation through rotating motor cover 30 like this, thereby can make and form mutual spaced grafting cooperation and joint cooperation between motor cover 30 and the base 20, can not only realize the connection between motor cover 30 and the base 20, can promote the stability and the reliability of the connection between motor cover 30 and the base 20, and can make the connection between motor cover 30 and the base 20 and promote the efficiency of the indoor air conditioner 100 of simpler and more convenient promotion.

Therefore, the first inserting and positioning part 21 and the first clamping part 22 which are spaced from each other are arranged on the base 20, and the second inserting and positioning part 31 and the second clamping part 32 are arranged on the motor cover 30, so that the motor cover 30 is only required to be rotated after the first inserting and positioning part 21 and the second inserting and positioning part 31 are mutually inserted and matched, and the first clamping part 22 and the second clamping part 32 are mutually clamped and positioned, the connection between the motor cover 30 and the base 20 can be realized, and the motor cover 30 is stable and reliable, and is convenient to assemble and disassemble.

As shown in fig. 4 to 12, one of the first plugging and positioning portion 21 and the second plugging and positioning portion 31 is a plug-in hole, and the other is a plug-in hole, and the plug-in hole is rotatably plugged and matched with the plug-in hole. Specifically, one of the first plugging and positioning portion 21 and the second plugging and positioning portion 31 may be set as a buckle, and the other of the first plugging and positioning portion 21 and the second plugging and positioning portion 31 may be set as a plugging hole, so that the buckle may rotate around the plugging hole, and the rotatable plugging and positioning cooperation between the first plugging and positioning portion 21 and the second plugging and positioning portion 31 may be realized, so that the structure of the first plugging and positioning portion 21 and the second plugging and positioning portion 31 may be simpler, the speed and accuracy of the plugging and positioning cooperation between the first plugging and positioning portion 21 and the second plugging and positioning portion 31 may be improved, the connection and the disassembly between the motor cover 30 and the base 20 may be facilitated, and the assembly efficiency of the indoor unit 100 of the air conditioner may be improved.

Further, as shown in fig. 4 to 6, 11 and 12, the eye-splice has a C-shape. Specifically, can make the eye-splice be the C font, be provided with the knot portion on the eye-splice of C font, correspondingly, be provided with the bulge on the spliced eye, after stretching into the spliced eye with the eye-splice, the bulge can with knot portion looks butt to the eye-splice can rotate round the bulge, thereby can realize the rotatable grafting cooperation between eye-splice and the spliced eye, can make the realization of rotatable grafting cooperation between eye-splice and the spliced eye simpler, can make rotatable grafting cooperation between eye-splice and the spliced eye more reliable and more stable.

As shown in fig. 10 to 12, the first plugging and positioning portion 21 and the first clamping portion 22 are disposed at intervals in the up-down direction, and the first plugging and positioning portion 21 and the second plugging and positioning portion 31 can be plugged and positioned rotatably in the up-down direction. Specifically, the first plugging and positioning portion 21 and the first clamping portion 22 may be disposed at intervals in the up-down direction, the second plugging and positioning portion 31 and the second clamping portion 32 may be disposed at intervals in the up-down direction, and the first plugging and positioning portion 21 and the second plugging and positioning portion 31 may be rotatably plugged and positioned in the up-down direction, so that when the motor cover 30 is connected with the base 20, the first plugging and positioning portion 21 and the second plugging and positioning portion 31 may be plugged and positioned in advance, then the motor cover 30 is rotated in the up-down direction, the first clamping portion 22 and the second clamping portion 32 are made to approach each other, and finally the first clamping portion 22 and the second clamping portion 32 are made to be clamped to each other.

So, not only can make the setting position of first grafting location portion 21 and first joint portion 22 follow operating personnel's application of force direction, make things convenient for operating personnel dismouting motor lid 30 more, further improve the assembly efficiency of air conditioner indoor set 100, can make the grafting cooperation and the joint cooperation of motor lid 30 and base 20 in the upper and lower direction interval distribution moreover, connect fixedly motor lid 30 and base 20 respectively in top and below, thereby can make the atress distribution of motor lid 30 and base 20 more even reasonable, can further guarantee the stability and the reliability of connecting between motor lid 30 and the base 20.

As shown in fig. 4 and fig. 8-12, one of the first clamping portion 22 and the second clamping portion 32 is an elastic buckle, and the other is a clamping hole, and the elastic buckle and the clamping hole are elastically clamped and matched. Specifically, one of the first clamping portion 22 and the second clamping portion 32 can be set to be an elastic buckle, and the other one is set to be a clamping hole, so that when the motor cover 30 is rotated, the elastic buckle only needs to extend into the clamping hole and can be elastically clamped and matched with the clamping hole, and elastic clamping and matching between the first clamping portion 22 and the second clamping portion 32 can be achieved, so that the structure of the first clamping portion 22 and the second clamping portion 32 is simpler, the speed and accuracy of elastic clamping and matching between the first clamping portion 22 and the second clamping portion 32 can be improved, connection and disassembly between the motor cover 30 and the base 20 can be facilitated, and the assembly efficiency of the indoor unit 100 of the air conditioner can be improved.

Further, as shown in fig. 8-11, the first clamping portion 22 is an elastic buckle, the second clamping portion 32 is a clamping hole, one side of the elastic buckle is provided with a clamping portion 221, a protruding rib 321 is circumferentially arranged in the clamping hole, and the clamping portion 221 and the protruding rib 321 are in clamping fit. Specifically, through setting up first joint spare into elastic buckle, set up second joint portion 32 into the joint hole to set up buckle portion 221 in one side of elastic buckle, set up protruding muscle 321 in the circumference of joint hole, after stretching into the joint hole with elastic buckle like this, buckle portion 221 and protruding muscle 321 can mutual joint cooperation, thereby can improve elastic joint complex stability and reliability between first joint portion 22 and the second joint portion 32, can improve connection stability and connection reliability between motor cover 30 and the base 20.

Referring to fig. 10, a limiting rib 222 is disposed on a side of the elastic buckle away from the buckle portion 221, the limiting rib 222 extends in a length direction of the elastic buckle, the limiting ribs 222 are plural, and the plurality of limiting ribs 222 are disposed at intervals in a width direction of the elastic buckle. Specifically, the limit rib 222 is arranged on one side, deviating from the buckling part 221, of the elastic buckle, and the limit rib 222 extends and is arranged in the length direction of the elastic buckle, so that the structural strength of the limit rib 222 in the length direction of the elastic buckle can be enhanced, the deformation resistance of the elastic buckle in the length direction is improved, the displacement of the elastic buckle can be limited when the buckling part 221 and the convex rib 321 are mutually clamped and matched, the elastic buckle can be prevented from being automatically separated from the clamping hole, the stability of the clamping fit between the buckling part 221 and the convex rib 321 can be ensured, and the connection stability and the connection reliability between the motor cover 30 and the base 20 can be further improved.

Further, the spacing rib 222 can be set to a plurality of to make a plurality of spacing ribs 222 set up at the width direction of elasticity buckle interval, a plurality of spacing ribs 222 can further improve the structural strength of elasticity buckle like this, thereby can further prevent that elasticity buckle from taking place the deformation of non-user's wish, lead to buckle portion 221 to deviate from the joint hole, and then can guarantee the cooperation of stable joint between buckle portion 221 and the protruding rib 321, further promote the connection stability and the connection reliability between motor cover 30 and the base 20.

Referring to fig. 5, 7 and 10-12, a first limiting portion 23 is provided on the base 20, a second limiting portion 33 is provided on the motor cover 30, one of the first limiting portion 23 and the second limiting portion 33 is a limiting post, and the other is a limiting groove, and the limiting post extends into the limiting groove and is in limiting fit with the limiting groove. Specifically, the first limiting portion 23 is disposed on the base 20, and the second limiting portion 33 is disposed on the motor cover 30, so that when the motor cover 30 is disposed on the base 20, the first limiting portion 23 and the second limiting portion 33 can be correspondingly in limiting fit, so that the motor cover 30 can be limited to move in the left-right direction and the front-rear direction relative to the base 20, and reliable connection and fixation of the motor cover 30 on the base 20 can be formed.

Further, one of the first limiting portion 23 and the second limiting portion 33 can be set as a limiting column, and the other one is set as a limiting groove, so that when the motor cover 30 is covered on the outer side of the motor 40, the limiting column can naturally extend into the limiting groove to be in limiting fit with the limiting groove, thereby optimizing the structural design of the first limiting portion 23 and the second limiting portion 33, improving the speed and accuracy of limiting fit between the first limiting portion 23 and the second limiting portion 33, improving the assembly efficiency between the motor cover 30 and the base 20, improving the stability and reliability of limiting fit between the first limiting portion 23 and the second limiting portion 33, and guaranteeing stable and reliable connection fixation between the motor cover 30 and the base 20.

As shown in fig. 10 to 12, the first limiting portions 23 are plural, the first limiting portions 23 are disposed on the base 20 at intervals, the second limiting portions 33 are plural, the second limiting portions 33 are disposed on the motor cover 30 at intervals, and the first limiting portions 23 and the second limiting portions 33 are in one-to-one correspondence. Specifically, the first limiting portions 23 and the second limiting portions 33 may be set to be plural, so that the first limiting portions 23 are set at intervals on the base 20, the second limiting portions 33 are set at intervals on the motor cover 30, and the first limiting portions 23 and the second limiting portions 33 are in one-to-one correspondence, so that when the motor cover 30 is set on the base 20, the first limiting portions 23 and the second limiting portions 33 can be in one-to-one limiting fit, thereby increasing the number of limiting fits between the motor cover 30 and the base 20, more reliably limiting the movement of the motor cover 30 relative to the base 20, and further ensuring stable and reliable connection and fixation between the motor cover 30 and the base 20.

In some embodiments of the present utility model, as shown in fig. 10-12, the number of the first limiting portions 23 is three, and the connection lines of the three first limiting portions 23 are triangular. Specifically, the first limiting portions 23 may be set to three, the connecting lines of the three first limiting portions 23 are triangular, correspondingly, the second limiting portions 33 are set to three, and the three second limiting portions 33 and the three first limiting portions 23 are in one-to-one correspondence, so that when the motor cover 30 is set on the base 20, the three first limiting portions 23 and the three second limiting portions 33 can be in one-to-one limiting fit, three limiting fits can be formed between the motor cover 30 and the base 20, and the connecting lines of the three limiting fits are triangular, so that the distribution of the three limiting fits is more uniform and reasonable, the movement of the motor cover 30 relative to the base 20 can be more reliably limited, the setting number and the setting positions of the optimized first limiting portions 23 can be improved, and the connection fixing stability between the motor cover 30 and the base 20 can be further improved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

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

the shell is provided with an air inlet and an air outlet;

the heat exchanger is arranged in the shell and corresponds to the air inlet;

the heat exchange fan, the heat exchange fan set up in the casing, the heat exchange fan with the heat exchanger interval sets up, the heat exchange fan includes: the motor is electrically connected with the heat exchange fan, the heat exchange fan is operated to introduce air flow outside the shell into the shell through the air inlet, heat exchange is carried out through the heat exchanger to form heat exchange air flow, and the heat exchange air flow is output to the outside of the shell through the air outlet under the drive of the heat exchange fan;

the base is arranged in the shell and is arranged at intervals with the heat exchanger, the motor and the heat exchange fan are arranged on the base, a first inserting and positioning part and a first clamping part are arranged on the base, and the first inserting and positioning part and the first clamping part are mutually spaced;

the motor cover is arranged in the shell and covers the outer side of the motor, a second inserting and positioning part and a second clamping part are arranged on the motor cover, the second inserting and positioning part is rotatably inserted and positioned to be matched with the first inserting and positioning part, and the second clamping part is matched with the first clamping part in a clamping way.

2. The indoor unit of claim 1, wherein one of the first plug-in positioning portion and the second plug-in positioning portion is a plug-in hole, and the other is a plug-in hole, and the plug-in hole is rotatably plug-in fitted with the plug-in hole.

3. The indoor unit of claim 2, wherein the eye-splice is C-shaped.

4. The indoor unit of claim 2, wherein the first plugging and positioning portion and the first clamping portion are disposed at intervals in an up-down direction, and the first plugging and positioning portion and the second plugging and positioning portion are rotatably plugged and positioned in the up-down direction.

5. The indoor unit of claim 1, wherein one of the first and second fastening portions is an elastic fastening buckle, and the other is a fastening hole, and the elastic fastening buckle and the fastening hole are elastically fastened and matched.

6. The indoor unit of claim 5, wherein the first clamping portion is an elastic buckle, the second clamping portion is a clamping hole, one side of the elastic buckle is provided with a clamping portion, a protruding rib is arranged in the circumferential direction of the clamping hole, and the clamping portion is in clamping fit with the protruding rib.

7. The indoor unit of claim 6, wherein a side of the elastic buckle away from the buckle portion is provided with a limiting rib, the limiting rib extends in a length direction of the elastic buckle, the limiting ribs are multiple, and the limiting ribs are arranged at intervals in a width direction of the elastic buckle.

8. The indoor unit of claim 1, wherein the base is provided with a first limiting portion, the motor cover is provided with a second limiting portion, one of the first limiting portion and the second limiting portion is a limiting column, and the other limiting column extends into the limiting groove and is in limiting fit with the limiting groove.

9. The indoor unit of claim 8, wherein the first limiting portions are provided in plurality, the first limiting portions are provided on the base at intervals, the second limiting portions are provided in plurality, the second limiting portions are provided on the motor cover at intervals, and the first limiting portions and the second limiting portions are provided in one-to-one correspondence.

10. The indoor unit of claim 9, wherein the number of the first limiting portions is three, and a connection line of the three first limiting portions is triangular.