Indoor unit and air conditioner

Abstract

The invention provides an indoor unit and an air conditioner, and relates to the technical field of air conditioners. The indoor unit comprises a shell and an evaporator arranged in the shell, the length direction of the shell is a first direction, the width direction of the shell is a second direction, and the evaporator comprises a heat exchange plate and a branch pipe extending out of a first side plate of the heat exchange plate in the first direction; a top plate of the shell is provided with an air return opening and two containing grooves used for containing the filter screen roll, the two containing grooves are located in the two sides of the air return opening in a one-to-one correspondence mode in the first direction, the groove bottom of at least one containing groove is provided with a receding hole, and in the second direction, the extending area of the receding hole covers the area where the vertex angle of the evaporator is located. The air conditioner comprises an outdoor unit and the indoor unit, and the evaporator of the outdoor unit and the evaporator of the indoor unit are communicated through a refrigerant pipe to form refrigerant circulation. Due to the arrangement of the receding hole in the containing groove of the indoor unit, damage to the evaporator caused by sinking deformation of the containing groove can be effectively reduced, and therefore normal operation of the evaporator, the indoor unit and the air conditioner is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an indoor unit and an air conditioner. Background Art

[0002] Air conditioners are widely used for temperature regulation in indoor environments. An evaporator is installed in the indoor unit of the air conditioner. The existing evaporator generally includes multiple heat exchange plates, and the multiple heat exchange plates are arranged according to the shape of the indoor unit air duct to form a vertex angle. The gap between the vertex angle and the top plate of the indoor unit housing is small, which is particularly prone to interference and collision with the bottom of the groove set on the top plate, causing damage. Summary of the invention

[0003] The purpose of the present invention includes providing an indoor unit and an air conditioner to solve the technical problem that the existing evaporator is easily damaged by interference and collision with the bottom of the groove arranged on the top plate.

[0004] To solve the above problems, the present invention provides an indoor unit, including a shell and an evaporator arranged in the shell, the length direction of the shell is a first direction, and the width direction is a second direction, the evaporator includes a heat exchange plate and a branch pipe extending from the heat exchange plate along the first direction; the top plate of the shell is provided with a return air port and two accommodating grooves for accommodating filter rolls, along the first direction, the two accommodating grooves are located one by one on both sides of the return air port, wherein a clearance hole is provided at the bottom of at least one of the accommodating grooves, and along the second direction, the extension area of ​​the clearance hole covers the area where the top corner of the evaporator is located.

[0005] In the indoor unit provided by the present invention, a clearance hole is provided in the accommodating groove, and the extension area of ​​the clearance hole along the second direction covers the area where the top corner of the evaporator is located. On the one hand, when the accommodating groove is depressed and deformed downward under the action of the filter roll or the driving component, the part of the evaporator located directly below the clearance hole along the first direction can extend upward through the clearance hole, thereby reducing the contact area and strength between the bottom of the groove and the evaporator when the accommodating groove is sunken and deformed, thereby reducing the possible extrusion damage to the evaporator caused by the accommodating groove, and correspondingly ensuring the normal operation of the evaporator; on the other hand, the provision of the clearance hole can make the accommodating groove The elastic deformation performance of the corresponding area of ​​the slot plate is improved, that is, the elastic deformation performance of the area corresponding to the accommodating slot and the top angle of the evaporator is better. When the area of ​​the bottom of the accommodating slot that is different from the giving way hole abuts against the top angle of the evaporator, the abutting area can quickly rebound and deform upward under the top action of the top angle, thereby further reducing the possible extrusion damage of the evaporator caused by the accommodating slot; on the other hand, the setting of the giving way hole also serves as a weight-reducing hole, which can reduce the weight of the slot body of the accommodating slot, thereby reducing the occurrence of the accommodating slot sinking, deformation and extrusion of the evaporator, and correspondingly further ensuring the normal operation of the evaporator.

[0006] Optionally, the accommodating groove is an arc groove, the axial direction of the accommodating groove is consistent with the second direction, and the groove opening of the accommodating groove is open; along the first direction, the clearance hole is located in the middle of the accommodating groove, and the width of the clearance hole is not less than 2 / 3 of the width of the accommodating groove.

[0007] Optionally, of the two accommodating grooves, the one located on the same side as the branch pipe is a first accommodating groove, and the other is a second accommodating groove; of the two side side panels of the evaporator, the one located on the same side as the first accommodating groove is a first side panel, and the other is a second side panel; along the first direction, the first side panel is located on the side of the return air outlet facing the first accommodating groove, and the second side panel is located between the return air outlet and the second accommodating groove, and only the first accommodating groove is provided with the make way hole.

[0008] Optionally, along the first direction, the first side plate is located between the first accommodating groove and the return air outlet.

[0009] Optionally, the branch pipe is lower than the top end of the vertex angle.

[0010] Optionally, a support rib is provided in the shell, a front end of the support rib is connected to the front side plate of the shell, a top end of the support rib is connected to the top plate and a connection position is located between the first accommodating groove and the return air outlet.

[0011] Optionally, at least one of the two accommodating grooves is blocked at one end along the second direction by an end plate, and a first vibration-damping gap exists between the end plate and a corresponding side plate of the shell.

[0012] Optionally, at least one of the two accommodating grooves serves as a driving side accommodating groove, and along the second direction, the top plate is provided with an installation area for installing a driving member at one end of the driving side accommodating groove; along the first direction, the driving side accommodating groove includes a connecting section and a vibration-damping section at one end facing the installation area, and the connecting section is connected to the installation area through a connecting arm, and a second vibration-damping gap exists between the vibration-damping section and the installation area.

[0013] Optionally, the indoor unit also includes a filter assembly and a drive assembly, the filter assembly includes a filter and two reels, the two ends of the filter in the length direction are wound around the two reels to form a filter roll, and the two filter rolls are rotatably connected in the two accommodating grooves one by one; the drive assembly is installed on the top plate and connected to the reel, and is used to drive the reel to rotate.

[0014] The present invention also provides an air conditioner, comprising an outdoor unit and the indoor unit, wherein the evaporators of the outdoor unit and the indoor unit are connected via a refrigerant pipe to form a refrigerant circulation.

[0015] The air conditioner provided by the present invention adopts the above-mentioned indoor unit and has all the beneficial effects of the indoor unit, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1 An axonometric diagram of the indoor unit provided by the present invention;

[0018] Figure 2 A schematic diagram of the connection between the middle frame and the base of the indoor unit provided by the present invention;

[0019] Figure 3 for Figure 2 A partial enlarged view of middle A;

[0020] Figure 4 A schematic diagram showing a first perspective view of an evaporator in an indoor unit provided by the present invention installed in a middle frame;

[0021] Figure 5 A schematic diagram showing a second viewing angle of the evaporator of the indoor unit provided by the present invention installed in the middle frame;

[0022] Figure 6 A partial schematic diagram of a middle frame of an indoor unit provided by the present invention from a first viewing angle;

[0023] Figure 7 This is a partial schematic diagram from a second viewing angle of the middle frame of the indoor unit provided by the present invention.

[0024] Description of reference numerals:

[0025] 10-shell; 11-middle frame; 11a-top plate; 11b-front side plate; 12-base; 12a-rear side plate; 20-evaporator; 21-heat exchange plate; 21a-top angle; 21b-first side plate; 21c-second side plate; 22-branch pipe; 30-filter assembly; 31-filter; 32-scroll; 40-drive assembly; 100-return air outlet; 200-first accommodating groove; 210-clearance hole; 300-second accommodating groove; 400-support rib; 500-end plate; 510-reinforcement rib; 600-installation area; 710-connecting section; 720-vibration reduction section; 730-connecting arm; 810-first vibration reduction gap; 820-second vibration reduction gap. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] This embodiment provides an indoor unit such as Figure 4 and Figure 5 As shown, it includes a shell 10 and an evaporator 20 arranged in the shell 10, the length direction of the shell 10 is the first direction, and the width direction is the second direction. The evaporator 20 includes a heat exchange plate 21 and a branch pipe 22 extending from the heat exchange plate 21 along the first direction; the top plate 11a of the shell 10 is provided with a return air port 100 and two accommodating grooves for accommodating filter rolls, along the first direction, the two accommodating grooves are located on both sides of the return air port 100 in a one-to-one correspondence, wherein a groove bottom of at least one accommodating groove is provided with a clearance hole 210, and along the second direction, the extension area of ​​the clearance hole 210 covers the area where the top corner 21a of the evaporator 20 is located.

[0028] The indoor unit provided in this embodiment includes a shell 10 with an air duct formed inside and an evaporator 20 installed in the shell 10 for exchanging heat with the air flow. The evaporator 20 is consistent with the length direction of the shell 10 and corresponds to the return air port 100. The accommodating grooves on both sides of the return air port 100 are used to partially or completely accommodate the filter roll, and the accommodating grooves are concave relative to the top plate 11a, and a clearance hole 210 is provided in the accommodating groove, and the extension area of ​​the clearance hole 210 along the second direction covers the area where the top corner 21a of the evaporator 20 is located. On the one hand, when the accommodating groove is depressed and deformed downward under the action of the filter roll or the driving component 40, the part of the evaporator 20 located directly below the clearance hole 210 along the first direction can extend upward through the clearance hole 210, thereby reducing the abutment area and strength of the bottom of the groove and the evaporator 20 when the accommodating groove sinks and deforms, thereby The possible extrusion damage to the evaporator 20 caused by the receiving groove is reduced, thereby ensuring the normal operation of the evaporator 20 accordingly; on the other hand, the setting of the clearance hole 210 can improve the elastic deformation performance of the corresponding area of ​​the receiving groove plate body, that is, the elastic deformation performance of the area corresponding to the receiving groove and the top angle 21a of the evaporator 20 is better. When the area of ​​the bottom of the receiving groove different from the clearance hole 210 abuts against the top angle 21a of the evaporator 20, the abutting area can quickly rebound and deform upward under the abutting action of the top angle 21a, thereby further reducing the possible extrusion damage to the evaporator 20 caused by the receiving groove; on the other hand, the setting of the clearance hole 210 also serves as a weight-reducing hole, which can reduce the weight of the groove body of the receiving groove, thereby reducing the occurrence of the situation where the receiving groove sinks, deforms and squeezes the evaporator 20, thereby further ensuring the normal operation of the evaporator 20 accordingly.

[0029] Specifically, the clearance hole 210 may be provided in only one of the accommodating grooves. Preferably, the clearance hole 210 may also be provided in both accommodating grooves.

[0030] Optionally, in this embodiment, if Figure 2 and Figure 3 As shown, the receiving groove is an arc groove, the axial direction of the receiving groove is consistent with the second direction, and the groove of the receiving groove is open; along the first direction, the clearance hole 210 is located in the middle of the receiving groove, and the width of the clearance hole 210 is not less than 2 / 3 of the width of the receiving groove. The filter roll is cylindrical, and the receiving groove is set as an arc groove with an open groove, which can adapt to and accommodate the outer cylindrical surface of a part of the filter roll, thereby ensuring the accommodation and limiting effect of the filter roll. In addition, compared with the case where the receiving groove is a rectangular groove, the space occupied by the receiving groove for the air duct is larger, and the clearance hole 210 must completely penetrate the receiving groove along the first direction in order to increase the lowest collision end face of the receiving groove. Therefore, when processing the clearance hole 210, in addition to cutting the groove bottom of the receiving groove, it is also necessary to cut the groove side walls on both sides of the receiving groove along the first direction, which is more difficult to process. In this embodiment, the receiving groove is set as an arc groove, and the space occupied by the receiving groove for the air duct is smaller, which can leave more installation space for other components, and the clearance hole 210 is set The clearance hole 210 is located in the middle of the accommodating groove and has a width greater than or equal to 2 / 3 of the width of the accommodating groove. At the same time, the extension area of ​​the clearance hole 210 along the second direction completely covers the area where the top corner 21a is located. Then, the bottom end surfaces of the clearance hole 210 on both sides along the first direction are the lowest collision end surfaces of the collision area between the accommodating groove and the top corner 21a. That is, the clearance hole 210 is directly opened in the middle of the bottom wall of the accommodating groove to obtain the clearance hole 210, so that the lowest collision end surface of the accommodating groove can be raised to a certain height as a whole, thereby improving the processing convenience of the clearance hole 210 on the basis of fully and effectively avoiding the top corner 21a and the branch pipe 22.

[0031] Specifically, in this embodiment, of the two receiving grooves, one located on the same side as the branch pipe 22 is the first receiving groove 200, and the other is the second receiving groove 300; of the two side panels of the evaporator 20, one located on the same side as the first receiving groove 200 is the first side panel 21b, and the other is the second side panel 21c; along the first direction, the first side panel 21b is located on the side of the return air inlet 100 facing the first receiving groove 200, and the second side panel 21c is located between the return air inlet 100 and the second receiving groove 300, and only the first receiving groove 200 is provided with a clearance hole 210. First, as Figure 4From the perspective shown, along the first direction, the first side plate 21b on the left side of the heat exchange plate 21 of the evaporator 20 extends beyond the left edge of the return air outlet 100, and at the same time, the second side plate 21c on the right side of the heat exchange plate 21 extends beyond the right edge of the return air outlet 100, so that the extension area of ​​the side plate along the first direction covers the area where the return air outlet 100 is located, and the airflow flowing in through the return air outlet 100 can fully contact and exchange heat with the heat exchange plate 21, thereby ensuring the temperature regulation efficiency of the indoor unit; secondly, the branch pipe 22 on the left side of the heat exchange plate 21 extends leftward to the area where the first accommodating groove 200 is located. On the basis that the first accommodating groove 200 can be reduced from being damaged by collision with the evaporator 20 by the clearance hole 210, even if the bottom of the first accommodating groove 200 collides with the branch pipe 22, the deformation performance is relatively good. The branch pipe 22 can be bent downward to a certain extent under the extrusion of the bottom of the first receiving groove 200, and the circulation of the refrigerant therein can still be ensured, and the normal operation of the evaporator 20 can be ensured accordingly; again, along the first direction, the second side plate 21c of the heat exchange plate 21 of the evaporator 20 extends beyond the return air port 100 and does not reach the second receiving groove 300. The heat exchange plate 21 will not interfere with the second receiving groove 300 in the up and down directions, thereby reducing the occurrence of collision damage between the evaporator 20 and the receiving groove, and there is no need to open a clearance hole 210 in the second receiving groove 300, which can not only improve the strength of the second receiving groove 300 body, and correspondingly improve the strength of the entire shell 10, but also reduce the processing steps and improve the processing convenience of the shell 10.

[0032] Specifically, in this embodiment, along the first direction, the first side plate 21b is located between the first receiving groove 200 and the return air port 100. The evaporator 20 has only the branch pipe 22 located below the first receiving groove 200. The setting of the clearance hole 210 can increase the gap between the lowest collision end face and the branch pipe 22, and can reduce the probability of the groove bottom of the first receiving groove 200 colliding with the branch pipe 22. Even if the groove bottom of the first receiving groove 200 collides with the branch pipe 22, the branch pipe 22 with better deformation performance can bend downward to a certain extent under the extrusion of the lowest collision end face, and the circulation of the refrigerant therein can still be ensured, and the normal operation of the evaporator 20 can be ensured accordingly.

[0033] Preferably, in this embodiment, when assembling the evaporator 20, the branch pipe 22 can be adjusted to be lower than the top of the vertex angle 21a. When the evaporator 20 is installed in the housing 10, the distance between the branch pipe 22 and the lowest collision end surface of the first receiving groove 200 is larger. Compared with the branch pipe 22 and the top of the vertex angle 21a being the same height, the first receiving groove 200 may not collide with the branch pipe 22 when it sinks and deforms by the same distance, or even if it collides, the collision strength of the two is low, thereby further reducing the collision damage to the evaporator 20 caused by the sinking of the first receiving groove 200, and correspondingly further ensuring the normal operation of the evaporator 20 and the indoor unit.

[0034] In this embodiment, Figure 3 and Figure 7 As shown, a support rib 400 is provided in the housing 10, the front end of the support rib 400 is connected to the front side plate 11b of the housing 10, the top end of the support rib 400 is connected to the top plate 11a and the connection position is located between the first receiving groove 200 and the return air outlet 100. The support rib 400 is supported between the first receiving groove 200 and the return air outlet 100, which can effectively ensure the orientation of the first receiving groove 200 and the return air outlet 100, reduce the occurrence of the downward depression of the two, and thus reduce the occurrence of the first receiving groove 200 interfering with the evaporator 20 and causing damage to it.

[0035] In this embodiment, Figure 3 As shown, at least one of the two receiving grooves is blocked at one end along the second direction by an end plate 500, and there is a first vibration reduction gap 810 between the end plate 500 and the corresponding side plate of the housing 10. The setting of the end plate 500 can limit the shape of the corresponding end of the receiving groove, thereby improving the overall strength of the receiving groove, reducing the degree of its sinking deformation, and correspondingly reducing the collision damage to the evaporator 20 caused by the sinking of the receiving groove; in addition, there is a first vibration reduction gap 810 between the end plate 500 and the side plate on the corresponding side of the housing 10, so that the vibration generated by the operation of the fan inside the air duct cannot be transmitted to the end plate 500 and the receiving groove through the side plate, thereby reducing the vibration intensity transmitted to the receiving groove by the operation of the indoor unit, and correspondingly reducing the collision damage to the evaporator 20 caused by the sinking deformation of the receiving groove due to vibration, thereby further ensuring the normal operation of the evaporator 20 and the indoor unit.

[0036] Specifically, the end plate 500 may be provided at one end of only one of the accommodating grooves, or at one end of both accommodating grooves; preferably, reinforcing ribs 510 may be provided on the outer side of the end plate 500 to increase the strength of the end plate 500 and further stabilize the accommodating grooves.

[0037] Optionally, in this embodiment, if Figure 6As shown, at least one of the two accommodating grooves serves as a driving side accommodating groove. Along the second direction, the top plate 11a is provided with an installation area 600 for installing the driving member at one end of the driving side accommodating groove. Along the first direction, the driving side accommodating groove includes a connecting section 710 and a vibration-damping section 720 at one end facing the installation area 600. The connecting section 710 is connected to the installation area 600 through a connecting arm 730. There is a second vibration-damping gap 820 between the vibration-damping section 720 and the installation area 600. The accommodating groove is used to accommodate the filter roll, and the installation area 600 is used to install the driving component 40, and the driving component 40 is used to drive the filter roll to rotate; wherein, the connecting section 710 connects one end of the driving side accommodating groove to increase the strength of this end of the driving side accommodating groove, thereby reducing the degree of sinking and deformation of the driving side accommodating groove; at the same time, there is also a vibration-damping section 720 at one end of the driving side accommodating groove, which is separated from the installation area 600 by a second vibration-damping gap 820. Then, the vibration generated by the driving component 40 during operation cannot be transmitted to the driving side accommodating groove through the second vibration-damping gap 820, thereby further reducing the degree of sinking and deformation of the driving side accommodating groove, and correspondingly further ensuring the stable operation of the evaporator 20 and the indoor unit.

[0038] Specifically, the vibration reduction section 720 can be two sections, and the two vibration reduction sections 720 are located on both sides of the connecting section 710. Correspondingly, there are two second vibration reduction gaps 820, and the two second vibration reduction gaps 820 are located on both sides of the connecting arm 730. On the basis of realizing the strengthening effect of the connecting arm 730 on the connection of the driving side groove, the driving component 40 is vibration-reduced on both sides, thereby further reducing the vibration transmitted to the driving side groove, and correspondingly further reducing the degree of sinking deformation of the driving side groove, thereby ensuring the stable operation of the evaporator 20 and the indoor unit.

[0039] Specifically, Figure 2 and Figure 3 As shown, the shell 10 may include a middle frame 11 and a base 12, which are connected to form an air duct, wherein the accommodating groove is arranged on the top plate 11a of the middle frame 11, and the support rib 400 is connected between the front side plate 11b of the middle frame 11 and the top plate 11a; the installation area 600 can be located on the front side of the accommodating groove, and the end plate 500 is connected to the rear end of the accommodating groove and there is a first vibration damping gap 810 between the end plate 500 and the top end of the rear side plate 12a of the base 12.

[0040] In this embodiment, Figure 1As shown, the indoor unit also includes a filter assembly 30 and a drive assembly 40. The filter assembly 30 includes a filter 31 and two reels 32. Both ends of the filter 31 in the length direction are wound around the two reels 32 to form a filter roll. The two filter rolls are rotatably connected in two accommodating grooves one by one. The drive assembly 40 is installed on the top plate 11a and connected to the filter roll, and is used to drive the reel 32 to rotate. The two accommodating grooves accommodate part or all of the filter rolls to limit them and reduce the height of the filter roll protruding upward from the top plate 11a. The two filter rolls tighten the filter 31 therebetween, so that the filter 31 is blocked at the return air outlet 100. The airflow passing through the return air outlet 100 needs to be filtered by the filter 31, thereby improving the cleanliness of the airflow entering the air duct; after using for a period of time, when the filter 31 at the return air outlet 100 is covered and blocked by impurities, the drive component 40 can be started. The drive component 40 drives one of the reels 32 to rotate and wind the used filter roll thereon, and the other filter roll rotates synchronously under the pulling action of the filter 31 and releases the clean filter 31 outwardly, and the clean filter 31 is transmitted to the return air outlet 100 to filter the airflow passing through the return air outlet 100, thereby improving the convenience of replacing the filter 31 and correspondingly improving the functionality of the air conditioner. Of course, in other embodiments, there may be two drive assemblies 40 , and the two drive assemblies 40 are connected to the two reels 32 in a one-to-one correspondence. When the filter 31 needs to be replaced, the two drive assemblies 40 can drive the two reels 32 to rotate synchronously.

[0041] This embodiment also provides an air conditioner, including an outdoor unit and the indoor unit mentioned above, and the evaporator 20 of the outdoor unit and the indoor unit are connected through a refrigerant pipe to form a refrigerant cycle. The air conditioner realizes temperature regulation of the indoor environment by the indoor unit through the refrigerant circulation, and the air conditioner adopts the indoor unit mentioned above, and the setting of the clearance hole 210 in the indoor unit, on the one hand, when the accommodating groove is sunken and deformed downward under the action of the filter roll or the driving component 40, the part of the evaporator 20 located directly below the clearance hole 210 along the first direction can extend upward through the clearance hole 210, thereby reducing the contact area and strength between the bottom of the groove and the evaporator 20 when the accommodating groove is sunken and deformed, thereby reducing the possible extrusion damage to the evaporator 20 caused by the accommodating groove, and correspondingly ensuring the normal operation of the evaporator 20; on the other hand, the setting of the clearance hole 210 can make the accommodating groove plate body relatively The elastic deformation performance of the corresponding area is improved, that is, the elastic deformation performance of the area corresponding to the accommodating groove and the top angle 21a of the evaporator 20 is better. When the area of ​​the bottom of the accommodating groove different from the giving hole 210 abuts against the top angle 21a of the evaporator 20, the abutting area can quickly rebound and deform upward under the abutting action of the top angle 21a, thereby further reducing the possible extrusion damage of the evaporator 20 caused by the accommodating groove; on the other hand, the setting of the giving hole 210 also serves as a weight-reducing hole, which can reduce the weight of the groove body of the accommodating groove, thereby reducing the occurrence of the evaporator 20 being squeezed by the sinking deformation of the accommodating groove, and correspondingly further ensuring the normal operation of the evaporator 20, the indoor unit and the air conditioner.

[0042] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0043] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An indoor unit, comprising a shell (10) and an evaporator (20) arranged in the shell (10), wherein the length direction of the shell (10) is a first direction and the width direction is a second direction, and the evaporator (20) comprises a heat exchange plate (21) and a branch pipe (22) extending from the heat exchange plate (21) along the first direction; characterized in that: The top plate (11a) of the shell (10) is provided with a return air port (100) and two receiving grooves for receiving a filter roll, and along the first direction, the two receiving grooves are located one-to-one on both sides of the return air port (100), wherein a clearance hole (210) is provided at the bottom of at least one of the receiving grooves, and along the second direction, an extension area of ​​the clearance hole (210) covers an area where a top corner (21a) of the evaporator (20) is located.

2. The indoor unit according to claim 1, characterized in that: The accommodating groove is an arc groove, the axial direction of the accommodating groove is consistent with the second direction, and the groove opening of the accommodating groove is open; along the first direction, the clearance hole (210) is located in the middle of the accommodating groove, and the width of the clearance hole (210) is not less than 2 / 3 of the width of the accommodating groove.

3. The indoor unit according to claim 1, characterized in that: Of the two receiving grooves, the one located on the same side as the branch pipe (22) is the first receiving groove (200), and the other is the second receiving groove (300); of the two side plates of the evaporator (20), the one located on the same side as the first receiving groove (200) is the first side plate (21b), and the other is the second side plate (21c); along the first direction, the first side plate (21b) is located on the side of the return air outlet (100) facing the first receiving groove (200), and the second side plate (21c) is located between the return air outlet (100) and the second receiving groove (300), and only the first receiving groove (200) is provided with the clearance hole (210).

4. The indoor unit according to claim 3, characterized in that: Along the first direction, the first side plate (21b) is located between the first accommodating groove (200) and the return air outlet (100).

5. The indoor unit according to claim 4, characterized in that: The branch pipe (22) is lower than the top end of the top corner (21a).

6. The indoor unit according to any one of claims 3 to 5, characterized in that: A support rib (400) is provided in the shell (10), the front end of the support rib (400) is connected to the front side plate (11b) of the shell (10), the top end of the support rib (400) is connected to the top plate (11a), and the connection position is located between the first accommodating groove (200) and the return air outlet (100).

7. The indoor unit according to any one of claims 1 to 5, characterized in that: At least one of the two accommodating grooves is blocked at one end along the second direction by an end plate (500), and a first vibration-damping gap (810) exists between the end plate (500) and a corresponding side plate of the housing (10).

8. The indoor unit according to any one of claims 1 to 5, characterized in that: At least one of the two accommodating grooves serves as a driving side accommodating groove. Along the second direction, the top plate (11a) is provided with an installation area (600) for installing a driving member at one end of the driving side accommodating groove. Along the first direction, the driving side accommodating groove includes a connecting section (710) and a vibration-damping section (720) at one end facing the installation area (600). The connecting section (710) is connected to the installation area (600) via a connecting arm (730), and a second vibration-damping gap (820) exists between the vibration-damping section (720) and the installation area (600).

9. The indoor unit according to any one of claims 1 to 5, characterized in that: The indoor unit further comprises a filter assembly (30) and a drive assembly (40); the filter assembly (30) comprises a filter (31) and two reels (32); both ends of the filter (31) in the length direction are wound around the two reels (32) to form a filter roll; the two filter rolls are rotatably connected in the two accommodating grooves in a one-to-one manner; the drive assembly (40) is mounted on the top plate (11a) and connected to the reels, and is used to drive the reels (32) to rotate.

10. An air conditioner, characterized in that: It comprises an outdoor unit and an indoor unit according to any one of claims 1 to 9, wherein the evaporator (20) of the outdoor unit is connected to the evaporator (20) of the indoor unit via a refrigerant pipe to form a refrigerant circulation.

Images