CN218936499U - Indoor unit of air conditioner - Google Patents

Abstract

The utility model discloses an air conditioner indoor unit, which comprises: the self-cleaning mechanism comprises a base, a first scroll, a second scroll, a cleaning brush and a dust collecting box, wherein the base comprises a base body, a base front cover and a base rear cover, the base front cover is rotatably connected to the front side of the base body, the base rear cover is rotatably connected to the rear side of the base body, and the first scroll, the second scroll and the cleaning brush are respectively and pivotally connected with the base. Therefore, the working efficiency of the cleaning brush is improved, the cleaning effect of the filter screen is improved, meanwhile, the cleaning mechanism is convenient to maintain the components in the cleaning mechanism through the positions of the front cover of the base and the rear cover of the base in time, the use cost of the cleaning mechanism is reduced, and the cleaning mechanism is convenient to install and detach the reel, the cleaning brush and the like in the cleaning cavity.

Description

Indoor unit of air conditioner

Technical Field

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

Background

The indoor unit of the air conditioner is provided with an air inlet and an air outlet, wherein a filter screen is arranged at the air inlet to filter the air entering the shell, so that sundries such as dust are prevented from entering the indoor unit of the air conditioner, and after the indoor unit is used for a period of time, too many sundries are attached to the filter screen, so that part of filter holes on the filter screen are blocked, the air inlet is reduced, and the refrigerating or heating efficiency of the air conditioner is influenced. At present, in order to enable the indoor unit of the air conditioner to keep high-efficiency operation, a self-cleaning mechanism is arranged in the indoor unit of the air conditioner and used for cleaning sundries on a filter screen, however, the self-cleaning mechanism is complex in structure and unfavorable in cleaning the inside of a cleaning cavity, and the cleaning effect is not ideal.

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, which can facilitate the installation of a self-cleaning mechanism and the cleaning of the interior of a cleaning chamber.

According to an embodiment of the utility model, an indoor unit of an air conditioner comprises: the self-cleaning mechanism is used for removing sundries on the filter screen, and comprises a base, a first scroll, a second scroll, a cleaning brush and a dust collecting box, wherein the base comprises a base body, a base front cover and a base rear cover, the base front cover is rotatably connected to the front side of the base body, the base rear cover is rotatably connected to the rear side of the base body, the base front cover and the base rear cover together define a cleaning cavity with a first opening at the top and a second opening at the bottom, the base front cover is used for opening and closing at least a part of the front side of the cleaning cavity, the base rear cover is used for opening and closing at least a part of the rear side of the cleaning cavity, the first scroll, the second scroll and the cleaning brush are respectively and pivotably connected with the base, the first scroll is positioned at the first opening, one end of the filter screen is connected with the first scroll, the other end of the filter screen is connected with the second scroll, the cleaning brush is arranged in the cleaning cavity, the cleaning brush is used for brushing off sundries on the filter screen in the process that the filter screen is wound on the first scroll or released from the first scroll, and the dust collecting box is arranged at the second opening and used for collecting the sundries falling off from the cleaning brush.

According to the indoor unit of the air conditioner, the cleaning cavity can be opened at regular time to clean the cleaning brush or the scroll in the cleaning cavity by arranging the base front cover and the base rear cover which are rotatable relative to the base body, so that the working efficiency of the cleaning brush and the cleaning effect on the filter screen are improved, meanwhile, the internal components are convenient to maintain in the self-cleaning mechanism due to the fact that the internal components are timely maintained through the positions of the base front cover and the base rear cover, the use cost of the self-cleaning mechanism is reduced, and the installation and the disassembly of the scroll, the cleaning brush and the like in the cleaning cavity are facilitated.

In some embodiments, the base body comprises: the cleaning brush comprises two end covers, a first connecting piece and a second connecting piece, wherein the two end covers are arranged at intervals along the length direction of the shell, a base front cover is rotatably connected between the front sides of the two end covers, a base rear cover is rotatably connected between the rear sides of the two end covers, and a first scroll, a second scroll and the cleaning brush are rotatably connected between the two end covers; the first connecting piece is connected between the front sides of the two end covers, the first connecting piece is positioned above the front cover of the base, and the first opening is defined between the first connecting piece and the rear cover of the base; the second connecting piece is connected between the rear sides of the two end covers, the second connecting piece is positioned below the base rear cover, and the cleaning cavity is defined between the base front cover and the second connecting piece.

In some embodiments, one of the upper and lower sides of the base front cover is pivotally connected to both of the end caps; at least one first positioning structure is arranged between the other side of the upper side and the lower side of the base front cover and at least one end cover, the first positioning structure comprises a first positioning hole and a first positioning protrusion, the first positioning hole is formed in one of the base front cover and the end cover, the first positioning protrusion is arranged on the other one of the base front cover and the end cover, and the first positioning protrusion is detachably matched with the first positioning hole.

In some embodiments, a first pivot hole is formed in each of the two end caps; the upper side of the base front cover is provided with a first pivot shaft extending along the length direction of the shell, two ends of the first pivot shaft are respectively and pivotally matched in the first pivot holes of the two end covers, and the lower side of the base front cover can rotate around the central axis of the pivot holes to open and close the front side of the cleaning cavity.

In some embodiments, the base front cover comprises: the avoidance section is positioned between the two end covers, the avoidance section protrudes towards the direction away from the central axis of the cleaning brush, and the first pivot shaft is connected to one side of the avoidance section away from the cleaning brush; the extension section extends along the upper and lower direction, the upper end of extension section with dodge the lower extreme of section and link to each other, the lower extreme of extension section with the dust collection box cooperation.

In some embodiments, a connecting section is connected between the first pivot shaft and the avoidance section, and the first pivot shaft is tangent to a side surface of the connecting section adjacent to the first reel; or a side surface of the first pivot shaft adjacent to the first reel is located on a side of a side surface of the connection section adjacent to the first reel remote from the first reel.

In some embodiments, the first connector comprises: the first connecting section and the second connecting section extend along the up-down direction; the upper end of the second connecting section is connected with the lower end of the first connecting section, and the lower end of the second connecting section extends obliquely downwards from front to back.

In some embodiments, the base rear cover is formed with a avoidance groove for avoiding the upper end of the second connecting member, one side of the avoidance groove adjacent to the cleaning brush is open, and the upper end of the second connecting member is suitable for abutting against the inner wall of the avoidance groove.

In some embodiments, a mounting groove is formed on the base rear cover, a side of the mounting groove facing the first reel is open, a sealing member is arranged in the mounting groove, the sealing member is used for sealing a gap between the base rear cover and the first reel when the base rear cover closes the rear side of the cleaning cavity, and the sealing member is spaced from the first reel when the base rear cover opens the rear side of the cleaning cavity.

In some embodiments, the underside of the base back cover is pivotally connected to both of the end caps; at least one second positioning structure is arranged between the upper side of the base rear cover and at least one end cover, the second positioning structure comprises a second positioning hole and a second positioning protrusion, the second positioning hole is formed in one of the base rear cover and the end cover, the second positioning protrusion is arranged on the other of the base rear cover and the end cover, and the second positioning protrusion is detachably matched with the second positioning hole.

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 a housing according to an embodiment of the utility model.

Fig. 2 is a schematic view of a housing and a self-cleaning mechanism according to an embodiment of the present utility model.

Fig. 3 is a partially exploded perspective view of a self-cleaning mechanism according to an embodiment of the present utility model.

Fig. 4 is a perspective exploded view of a base according to an embodiment of the present utility model.

Fig. 5 is an enlarged schematic view of the region P in fig. 4.

Fig. 6 is a perspective exploded view of a base according to an embodiment of the present utility model.

Fig. 7 is a schematic cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present utility model.

Fig. 8 is an enlarged schematic view of the Q region in fig. 7.

Fig. 9 is a schematic view of a drive mechanism according to an embodiment of the utility model.

Reference numerals:

100. an air conditioner indoor unit;

10. a housing; 11. An air inlet;

20. an indoor heat exchanger; 30. A fan assembly; 40. A filter screen;

50. a self-cleaning mechanism; 51. a base; 511. a base body; 512. a base front cover; 5121. a first positioning hole; 5122. a first pivot shaft; 5123. an avoidance section; 5124. an extension section; 5125. a connection section; 513. a base rear cover; 5131. an avoidance groove; 5132. a second pivot shaft; 5133. a second positioning protrusion; 514. an end cap; 5142. a first pivot hole; 5143. a second positioning hole; 5144. a second pivot hole; 515. a first connector; 5151. a first connection section; 5152. a second connection section; 516. a second connector; 52. a first reel; 53. a second reel; 54. a cleaning brush; 55. a dust collection box; 56. cleaning the cavity; 57. a mounting groove; 571. a first extension; 572. a second extension; 573. a third extension; 574. a fourth extension; 58. a seal;

60. A driving mechanism; 61. a drive gear; 62. a first driven gear; 63. and a second driven gear.

Detailed Description

Embodiments of the present utility model will be described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary, and an air conditioner indoor unit 100 according to an embodiment of the present utility model will be described below with reference to fig. 1 to 9, the air conditioner indoor unit 100 including: the housing 10, the indoor heat exchanger 20, the fan assembly 30, the at least one screen 40, the at least one self-cleaning mechanism 50.

Specifically, as shown in fig. 1 to 6, an air inlet 11 and an air outlet are formed in the casing 10, the indoor heat exchanger 20 is disposed in the casing 10 and is used for exchanging heat with indoor air entering from the air inlet 11, the fan assembly 30 is disposed on one side of the indoor heat exchanger 20 away from the air inlet 11 and is used for enabling indoor air to flow in from the air inlet 11 and exchange heat with the indoor heat exchanger 20 and then to be sent out from the air outlet, and the filter screen 40 is disposed between the air inlet 11 and the indoor heat exchanger 20 and is used for filtering sundries in indoor air. Indoor air enters the shell 10 from the air inlet 11 under the action of the fan assembly 30, is filtered by the filter screen 40 arranged between the indoor heat exchanger 20 and the air inlet 11, and then enters the indoor heat exchanger 20 for heat exchange. For example, when the air conditioner indoor unit 100 is cooling, the indoor air is subjected to heat exchange with the indoor heat exchanger 20 to form cool air, and the cool air is blown into the room from the air outlet. The fan assembly 30 can guide indoor air from the air inlet 11 to the indoor heat exchanger 20, increase the air intake from the air inlet 11 into the indoor heat exchanger 20, and adjust the air intake. The filter screen 40 can be used for filtering impurities in the indoor air when the indoor air enters the indoor heat exchanger 20 from the air inlet 11, so that the air quality entering the indoor heat exchanger 20 is higher, and the problem that the heat exchange efficiency of the indoor heat exchanger 20 is affected by the blockage of the indoor heat exchanger 20 by impurities in the indoor air is avoided.

The self-cleaning mechanism 50 is provided in the housing 10 for removing impurities on the filter screen 40, wherein the self-cleaning mechanism 50 includes a base 51, a first reel 52, a second reel 53, a cleaning brush 54, and a dust collection box 55, the base 51 includes a base body 511, a base front cover 512, and a base rear cover 513, the base front cover 512 is rotatably connected to the front side of the base body 511, the base rear cover 513 is rotatably connected to the rear side of the base body 511, the base front cover 512, and the base rear cover 513 together define a cleaning chamber 56 having a first opening at the top and a second opening at the bottom, the base front cover 512 is used for opening and closing at least a portion of the front side of the cleaning chamber 56, the base rear cover 513 is used for opening and closing at least a portion of the rear side of the cleaning chamber 56, the first reel 52, the second reel 53, and the cleaning brush 54 are pivotably connected to the base 51, the first reel 52 is located at the first opening, one end of the filter screen 40 is connected to the first reel 52, the other end of the filter screen 40 is connected to the second reel 53, the cleaning brush 54 is provided in the cleaning chamber 56, the cleaning brush 54 is provided in the cleaning chamber 54 is provided for opening and the cleaning brush 54 is wound around the first reel 52 or the cleaning brush 54 is provided on the first reel 52 for cleaning brush 52 or the dust collection box 55, and impurities is released from the cleaning brush 52. Here, the screen 40 is wound around the first reel 52 as an example. During the cleaning of the self-cleaning mechanism 50, the cleaning brush 54 is at least partially in contact with the filter screen 40 during the winding of the filter screen 40 around the first reel 52, and the cleaning brush 54 and the filter screen 4040 are relatively moved as the filter screen 40 is wound and released, so that the cleaning brush 54 can brush off impurities attached to the filter screen 40.

For example, after the indoor unit 100 of the air conditioner is operated for a period of time, as the indoor air continuously flows from the air inlet 11 to the indoor heat exchanger 20 by the fan assembly 30, the indoor air is sent from the air outlet to the indoor by the fan assembly 30 after being heat-exchanged by the indoor heat exchanger 20. As the foreign matters attached to the filter screen 40 opposite to the air inlet 11 in the air conditioner indoor unit 100 increases, when the foreign matters on the filter screen 40 reach a certain amount, a sensor provided in the housing 10 for detecting the amount of the foreign matters attached to the filter screen 40 may transmit a signal to the controller to control the air conditioner indoor unit 100 to enter the self-cleaning mode when detecting the foreign matters on the filter screen 40 reach a preset value. In the self-cleaning mode, the filter screen 40 moves relatively to the cleaning brush 54 under the action of the first rotating shaft and the second rotating shaft, and the cleaning brush 54 can be opposite to different areas of the filter screen 40 and can clean the area of the filter screen 40 opposite to the area. For example, when the first reel 52 and the second reel 53 rotate counterclockwise, the cleaning brush 54 included in the self-cleaning mechanism 50 may abut against the first reel 52 to clean up the sundries on the filter screen 40 wound on the first reel 52, so that the sundries from the filter screen 40 fall into the dust box 55 to collect the sundries. And the dust box 55 is detachably connected with the base 51, so that the dust box 55 can be detached from the base 51 after the sundries are collected when the sundries in the dust box 55 need to be cleaned, and the sundries in the dust box 55 can be cleaned conveniently. Meanwhile, with the long-time operation of the self-cleaning mechanism 50, the capability of the cleaning brush 54 to brush off the sundries on the filter screen 40 wound on the first reel 52 is reduced, and cleaning of the cleaning brush 54 is required, but the removal of the self-cleaning mechanism 50 to process the cleaning brush 54 is complicated, and here, thorough cleaning of the cleaning brush 54 in the cleaning cavity 56 can be achieved by opening the base front cover 512 rotating relative to the base body 511, so that the working efficiency of the cleaning brush 54 is ensured. Optionally, a base rear cover 513 is rotatably coupled with respect to the base body 511 to facilitate opening a rear side of the cleaning chamber 56 for cleaning and maintenance of the spool or the like.

According to the indoor unit 100 of the air conditioner in the embodiment of the utility model, the cleaning cavity 56 can be opened at regular time to clean the cleaning brush 54 or the scroll inside by arranging the base front cover 512 and the base rear cover 513 which are rotatable relative to the base body 511, so that the working efficiency of the cleaning brush 54 and the cleaning effect of the filter screen 40 are improved, meanwhile, the internal components are convenient to maintain in time through the positions of the base front cover 512 and the base rear cover 513 in the self-cleaning mechanism 50, the use cost of the self-cleaning mechanism 50 is reduced, and the installation and the disassembly of the scroll, the cleaning brush 54 and the like inside the cleaning cavity 56 are convenient.

In some embodiments, as shown in fig. 3 and 6, the susceptor body 511 includes: the two end caps 514, the first connecting member 515, the second connecting member 516, the two end caps 514 are disposed at intervals along the length direction of the housing 10, the base front cover 512 is rotatably connected between the front sides of the two end caps 514, the base rear cover 513 is rotatably connected between the rear sides of the two end caps 514, and the first roller 52, the second roller 53, and the cleaning brush 54 are rotatably connected between the two end caps 514. That is, the first and second connection members 515 and 516 are extended along the length direction of the housing 10, the first reel 52 is located under the second reel 53, the cleaning brush 54 is disposed under the first reel 52, the cleaning brush 54 is in contact with the filter screen 40 wound on the first reel 52 during the process of winding the filter screen 40 around the first and second reels 52, and the relative rotation, for example, the first reel 52 is rotated counterclockwise, the cleaning brush 54 is rotated clockwise, so that the cleaning brush 54 cleans the impurities on the filter screen 40. A first connection 515 is connected between the front sides of the two end caps 514, the first connection 515 being located above the base front cover 512, the first connection 515 defining a first opening with the base rear cover 513; a second connecting member 516 is coupled between the rear sides of the two end caps 514, the second connecting member 516 being positioned below the base rear cover 513, the base front cover 512 and the second connecting member 516 defining the cleaning chamber 56 therebetween. When the front side of the cleaning chamber 56 needs to be opened, the base front cover 512 rotates to be abutted with the first connecting piece 515, and when the rear side of the cleaning chamber 56 needs to be opened, the base rear cover 513 rotates to be abutted with the second connecting piece 516. Therefore, the first connecting piece 515 and the second connecting piece 516 are arranged between the two end covers 514, and the first connecting piece 515 and the second connecting piece 516 are connected with the two end covers 514, so that the structural strength of the base 51 can be increased, and the limit to the base front cover 512 and the base rear cover 513 can be formed when the base front cover 512 and the base rear cover 513 are opened.

In some embodiments, referring to fig. 6-8, one of the upper and lower sides of the base front cover 512 is pivotably coupled to the two end covers 514, at least one first positioning structure is provided between the other of the upper and lower sides of the base front cover 512 and the at least one end cover 514, the first positioning structure includes a first positioning hole 5121 and a first positioning protrusion formed on one of the base front cover 512 and the end cover 514, the first positioning protrusion is provided on the other of the base front cover 512 and the end cover 514, and the first positioning protrusion is detachably engaged with the first positioning hole 5121. For example, in the process of pivotally connecting the base front cover 512 to the end cover 514, the upper sides of both ends of the base front cover 512 in the longitudinal direction of the housing 10 may be pivotally connected to the end cover 514, that is, the lower side of the base front cover 512 may be flipped upward to effect the opening of the front side of the cleaning chamber 56 when the base front cover 512 opens the front side of the cleaning chamber 56. The first positioning protrusion may be disposed at a side of the end cover 514 adjacent to the cleaning chamber 56, the first positioning hole 5121 is disposed at lower sides of both ends of the base front cover 512, the base front cover 512 maintains the front side of the cleaning chamber 56 closed when the first positioning protrusion is fitted in the first positioning hole 5121, and the base front cover 512 is adapted to rotate around an upper side of the base front cover 512 to open the front side of the cleaning chamber 56 when the first positioning protrusion is separated from the first positioning hole 5121. Thus, through setting up first locating protrusion on one of base protecgulum 512 and end cover 514, set up first locating hole 5121 on the other, realize the separable cooperation of base protecgulum 512 and end cover 514 through first locating protrusion and first locating hole 5121 cooperation, be convenient for can open when needs clearance cleaning brush 54 and clean chamber 56, avoid dismantling from cleaning mechanism 50, reduce the degree of difficulty of cleaning brush 54, and because first locating structure is simple, can effectively reduce the cost of air conditioner indoor set 100.

In addition, first positioning holes 5121 may be formed on the upper sides of the two ends of the base front cover 512, the lower sides of the two ends of the base front cover 512 are pivotally connected with the end cover 514, first positioning protrusions are formed on the upper side of the end cover 514, and when the first positioning protrusions are matched with the first positioning grooves, the base front cover 512 may be turned down to open the front side of the cleaning cavity 56. When the first positioning structure is disposed on the upper side of the base front cover 512, the first positioning protrusions may be disposed on two ends of the base front cover 512, and the first positioning holes 5121 are disposed on the end cover 514.

In some embodiments, as shown in fig. 6, a first pivot hole 5142 is formed on each of the two end caps 514; the upper side of the base front cover 512 is provided with a first pivot shaft 5122 extending in the length direction of the housing 10, both ends of the first pivot shaft 5122 are respectively pivotably fitted in the first pivot holes 5142 of the two end caps 514, and the lower side of the base front cover 512 is rotatable about the central axis of the pivot holes to open and close the front side of the cleaning chamber 56. The first pivot shaft 5122 is disposed on a side of the base front cover 512 away from the center of the cleaning chamber 56, and two ends of the first pivot shaft 5122 are respectively pivotally engaged in the first pivot holes 5142 of the two end covers 514. That is, the end cover 514 is provided with a first pivot hole 5142 for realizing the rotation of the base front cover 512, the base front cover 512 is provided with a first pivot shaft 5122 opposite to the first pivot hole 5142, the base front cover 512 and the end cover 514 of the base body 511 are in pivot connection through the arrangement of the first pivot shaft 5122 and the first pivot hole 5142, the structure for realizing pivot connection is simple, and the base front cover 512 can be conveniently turned upwards to open the cleaning cavity 56 under the action of external force to clean the cleaning brush 54. Of course, the first pivot shaft 5122 may be disposed on a side of the end cover 514 adjacent to the center of the cleaning chamber 56, and the first pivot holes 5142 may be disposed on both ends of the base front cover 512 along the length direction of the housing 10, so as to implement the engagement of the base front cover 512 and the end cover 514. Therefore, by providing the first pivot hole 5142 and the first pivot shaft 5122 on the end cover 514 and the base front cover 512 respectively, the base front cover 512 is connected with the base body 511 through the cooperation of the first pivot shaft 5122 and the first pivot hole 5142, and meanwhile, the base front cover 512 rotates relative to the base body 511, so that the rotating structure of the base front cover 512 relative to the base body 511 is simplified, and the cleaning of the interior of the cleaning cavity 56 is facilitated.

In some embodiments, as shown in fig. 6, the first pivot shaft 5122 is located at an upper side of the base front cover 512, and a lower side of the base front cover 512 is rotatable about a central axis of the first pivot hole 5142 to open and close a front side of the cleaning chamber 56. That is, the base front cover 512 provided at the front side of the base 51 may be turned upward to open the cleaning chamber 56, and after the cleaning brush 54 inside is cleaned, the base front cover 512 is turned over to close the front side of the cleaning chamber 56. Meanwhile, the first pivot shaft 5122 is disposed on the upper side of the base front cover 512, so as to facilitate the stability of the installation of the base front cover 512, so as to more easily close the front side of the cleaning cavity 56 under the action of self gravity of the base front cover 512 and increase the tightness of the cleaning cavity 56. Thus, the first pivot shaft 5122 is disposed on the upper side of the base front cover 512, so that the lower side of the base front cover 512 can rotate around the central axis of the first pivot hole 5142, which is convenient for opening the cleaning cavity 56, and increases the stability of the connection between the base front cover 512 and the base body 511.

In some embodiments, as shown in fig. 6, the base front cover 512 includes: the avoidance section 5123 and the extension section 5124, wherein the avoidance section 5123 is positioned between the two end covers 514, the avoidance section 5123 protrudes towards the direction away from the central axis of the cleaning brush 54, and the first pivot shaft 5122 is connected to one side of the avoidance section 5123 away from the cleaning brush 54; the extension 5124 extends in the up-down direction, the upper end of the extension 5124 is connected to the lower end of the escape section 5123, and the lower end of the extension 5124 is matched with the dust box 55. The base front cover 512 is a part of the cleaning cavity 56, and is used for forming a seal for the cleaning cavity 56 at the front side of the cleaning cavity 56, the avoidance section 5123 is located above the extension section 5124, the avoidance section 5123 is opposite to the cleaning brush 54 along the front-back direction of the shell 10, the pivot shaft is arranged at one side of the avoidance section 5123 away from the cleaning brush 54, when the base front cover 512 is matched with the base body 511, one end of the extension section 5124 away from the avoidance section 5123 along the up-down direction is matched with the upper part of the dust box 55, that is, when the dust box 55 is assembled with the base body 511, the upper part of the dust box 55 is matched with the base front cover 512 so as to form a seal for the cleaning cavity 56 at the front side and the lower side of the base body 511. Therefore, the arrangement of the avoiding section 5123 can increase the rationality of the arrangement of the base front cover 512, avoid the interference of the base front cover 512 with the installation of the inner scroll of the cleaning cavity 56 or the cleaning brush 54, and the like, and rotate, etc., and the extending section 5124 can better form the seal on the front side of the cleaning cavity 56, thereby being convenient for the installation of the base front cover 512 and the base body 511.

Further, as shown in fig. 6, the escape section 5123 is formed in an arc shape protruding toward a direction away from the central axis of the cleaning brush 54, and the central line of the escape section 5123 coincides with the central axis of the cleaning brush 54. Dodge section 5123 and the coaxial setting of cleaning brush 54 can avoid producing the interference with cleaning brush 54 when base protecgulum 512 joins in marriage with base body 511, simultaneously, can increase the utilization ratio to the base 51 space, inject the interval between base protecgulum 512 and the cleaning brush 54, so that the dust particle thing etc. that the cleaning brush 54 roll in-process produced can be along dodging section 5123 and fall naturally, be favorable to the dust to concentrate and fall in dust collection box 55, can reduce the raise dust of cleaning cavity 56 inside, increase the speed that debris kept stand, reduce from cleaning mechanism 50's volume, be favorable to from cleaning mechanism 50's integration and miniaturized design.

In some embodiments, as shown in fig. 6 and 8, a connection section 5125 is connected between the first pivot shaft 5122 and the escape section 5123, and the first pivot shaft 5122 is tangent to a side surface of the connection section 5125 adjacent to the first spool 52; or a side surface of the first pivot shaft 5122 adjacent to the first spool 52 is located on a side of the connection section 5125 adjacent to a side surface of the first spool 52 remote from the first spool 52. That is, when the first pivot shaft 5122 is connected to the escape section 5123 through the connection section 5125, the first pivot shaft 5122 and the connection section 5125 are located on the side of the escape section 5123 away from the cleaning brush 54, and the first pivot shaft 5122 is flush with the surface of the side of the connection section 5125 adjacent to the first roller 52, and the surface of the side adjacent to the first roller 52 abuts against the surface of the side of the first connection member 515 away from the first roller 52. The upper end of the escape section 5123 is at least partially located on the side of the connection section 5125 adjacent to the first reel 52, and when the base front cover 512 closes the front side of the cleaning chamber 56, the lower end face of the first connection member 515 abuts against the side surface of the escape section 5123 remote from the cleaning brush 54, and the side surface of the first connection member 515 remote from the first reel 52 abuts against the side surface of the connection section 5125 adjacent to the first reel 52. Therefore, by arranging the connecting section 5125 between the avoidance section 5123 and the first pivot shaft 5122, the connection between the first pivot shaft 5122 and the avoidance section 5123 is facilitated, when the front side of the cleaning cavity 56 is closed by the base front cover 512, the lower end of the first connecting piece 515 is abutted against the upper end of the avoidance section 5123, and the connecting section 5125 is abutted against the first connecting piece 515, so that the tightness of the connection part between the avoidance section 5123 and the first connecting piece 515 can be improved, and dust in the cleaning cavity 56 can be prevented from flowing out from the connection part.

In some embodiments, as shown in fig. 6, the first connection 515 includes: a first connection section 5151 and a second connection section 5152, the first connection section 5151 extending in the up-down direction; the upper end of the second connection section 5152 is connected with the lower end of the first connection section 5151, the lower end of the second connection section 5152 extends obliquely downwards from front to back, when the front side of the cleaning cavity 56 is closed by the base front cover 512, the lower end face of the second connection section 5152 is abutted against one side surface of the avoidance section 5123, which is far away from the cleaning brush 54, and one side surface of the second connection section 5152, which is far away from the first scroll 52, is abutted against one side surface of the connection section 5125, which is adjacent to the first scroll 52. Therefore, the first connecting piece 515 includes the first connecting section 5151 and the second connecting section 5152, the second connecting section 5152 extends from top to bottom towards the first reel 52, the structural strength of the base 51 can be increased, the volume of the self-cleaning mechanism 50 is reduced, so that sundries on the filter screen 40 can fall into the cleaning cavity 56 along the second connecting section 5152 quickly due to vibration in the rotation process of the first reel 52, the lower end of the second connecting section 5152 is abutted against the upper end of the avoiding section 5123 when the cleaning cavity 56 is closed by the base front cover 512, the tightness between the base front cover 512 and the first connecting piece 515 can be increased, and the dust and the like generated in the working process of the cleaning brush 54 in the cleaning cavity 56 are prevented from overflowing from the connecting position.

In some embodiments, as shown in fig. 6, a relief groove 5131 for relieving an upper end of the second coupling member 516 is formed in the base rear cover 513, one side of the relief groove 5131 adjacent to the cleaning brush 54 is opened, and an upper end of the second coupling member 516 is adapted to be stopped against an inner wall of the relief groove 5131. The lower end of the base rear cover 513 is provided with a first extension part 571 and a second extension part 572, the first extension part 571 extends obliquely from top to bottom towards the cleaning brush 54, the second extension part 572 is arranged at the rear end of the first extension part 571, the second extension part 572 extends obliquely from top to bottom towards a direction away from the cleaning brush 54, a avoidance groove 5131 is defined between the first extension part 571 and the second extension part 572, and when the base rear cover 513 is matched with the end cover 514, namely, the rear side of the cleaning cavity 56 is closed, the upper end of the second connecting piece 516 is matched with the avoidance groove 5131. The base rear cover 513 is pivotally connected to the end cover 514, a second pivot shaft 5132 is disposed at an end of the second extension part 572 along the length direction of the housing 10, a second pivot hole 5144 is disposed on the end cover 514 opposite to the second pivot shaft 5132, the second pivot shaft 5132 is matched with the second pivot hole 5144, and when the base rear cover 513 is connected to the end cover 514, the base rear cover 513 can rotate around the second pivot hole 5144 to open the rear side of the cleaning chamber 56. Therefore, the avoidance groove 5131 is formed below the base rear cover 513, so that when the base rear cover 513 is opened to the rear side of the cleaning cavity 56, the base rear cover 513 can rotate relative to the second connecting piece 516, and when the base rear cover 513 is closed to the rear side of the cleaning cavity 56, the second connecting piece 516 can be stopped against the avoidance groove 5131, and the avoidance groove 5131 is used for limiting the base rear cover 513, so that accurate installation of the base rear cover 513 is ensured.

In some embodiments, as shown in fig. 4 to 6, a mounting groove 57 is formed on the base rear cover 513, a side of the mounting groove 57 facing the first reel 52 is opened, a sealing member 58 is provided in the mounting groove 57, the sealing member 58 serves to seal a gap between the base rear cover 513 and the first reel 52 when the base rear cover 513 closes the rear side of the cleaning chamber 56, and the sealing member 58 is spaced apart from the first reel 52 when the base rear cover 513 opens the rear side of the cleaning chamber 56. That is, when the base rear cover 513 is connected to the base body 511, a mounting groove 57 is provided on a side of the base body 511 facing the first reel 52, and a sealing member 58 is provided in the mounting groove 57, and the sealing member 58 is detachably connected to the mounting groove 57. The rear side of the seal 58 is located in the mounting groove 57, the front side of the seal 58 protrudes out of the mounting groove 57 to stop against the first spool 52, and the center line of the seal 58 and the center line of the first spool 52 are located in the same plane in the front-rear direction of the housing 10. The seal 58 may be a polyurethane foam with high resiliency. Therefore, the mounting groove 57 is formed on the base rear cover 513, the sealing element 58 is arranged in the mounting groove 57, the sealing element 58 and the stopping of the first scroll 52 can form a seal on the first opening of the cleaning cavity 56, dust in the cleaning cavity 56 is prevented from flowing to the fan assembly 30 or the indoor heat exchanger 20, and the service life of the indoor unit 100 of the air conditioner is prolonged. Meanwhile, the sealing piece 58 is in tangent contact with the first scroll 52, so that the filter screen 40 wound on the first scroll 52 can be secondarily cleaned, the filter effect of the filter screen 40 is better, and the filtering capability of the self-cleaning mechanism 50 is improved.

In some embodiments, as shown in fig. 6 to 8, the third extension 573 and the fourth extension 574 are connected to the base rear cover 513, the third extension 573 is located above the fourth extension 574, the third extension 573 and the fourth extension 574 extend forward, the third extension 573, the fourth extension 574 and the base rear cover 513 together define the mounting groove 57, and thus, by providing the third extension 573 and the fourth extension 574 on the front side of the base rear cover 513, the third extension 573 and the fourth extension 574 and the base rear cover 513 define the mounting groove 57 for mounting the sealing member 58, and the structure of the base 51 can be simplified while the sealing member 58 is mounted, and the reliability of the mounting of the sealing member 58 can be increased.

In some embodiments, as shown in fig. 4-6, at least one second positioning structure is provided between the upper side of the base rear cover 513 and the at least one end cover 514, the second positioning structure including a second positioning hole 5143 and a second positioning protrusion 5133, the second positioning hole 5143 being formed on one of the base rear cover 513 and the end cover 514, the second positioning protrusion 5133 being provided on the other of the base rear cover 513 and the end cover 514, the second positioning protrusion 5133 being detachably engaged with the second positioning hole 5143, the sealing member 58 being held in abutment with the first spool 52 when the second positioning protrusion 5133 is engaged within the second positioning hole 5143, and the sealing member 58 being spaced apart from the first spool 52 when the second positioning protrusion 5133 is separated from the second positioning hole 5143. Two second positioning projections 5133 are provided at both ends of the third extension 573 in the length direction of the housing 10, respectively. That is, a third extension 573 and a fourth extension 574 are provided at a side of the base rear cover 513 adjacent to the first reel 52, the third extension 573 and the fourth extension 574 extend along the length direction of the housing 10, respectively, the sealing member 58 is provided between the third extension 573 and the fourth extension 574, and a second positioning projection 5133 for detachably connecting the base rear cover 513 with the end cap 514 is provided at an end of the third extension 573 so as to form the mounting groove 57. The third extension 573, the fourth extension 574, and the base rear cover 513 may be manufactured by integral molding.

Alternatively, as shown in fig. 4, the two end caps 514 are respectively formed with second positioning holes 5143, the upper portion of the base rear cover 513 is provided with two second positioning protrusions 5133, the two second positioning protrusions 5133 are respectively located at both ends of the base rear cover 513 in the length direction of the housing 10, the two second positioning protrusions 5133 are detachably engaged with the second positioning holes 5143 of the two end caps 514, the sealing member 58 is held in abutment with the first reel 52 when the two second positioning protrusions 5133 are engaged in the second positioning holes 5143 of the two end caps 514, and the base rear cover 513 is adapted to rotate about the central axis of the second pivot hole 5144 to space the sealing member 58 and the first reel 52 from each other when the two second positioning protrusions 5133 are separated from the second positioning holes 5143 of the two end caps 514. The second positioning holes 5143 may have a rectangular or circular shape. The second positioning hole 5143 may be formed at an end of the rear cover 513 along the length direction of the housing 10, and the second positioning protrusion 5133 may be formed at a side of the end cover 514 adjacent to the cleaning chamber 56. The base rear cover 513 may be separated from the end cover 514 by an external force, and the cross-sectional area of the second positioning hole 5143 is greater than the cross-sectional area of the second positioning protrusion 5133 along the length direction of the housing 10, so that the second positioning protrusion 5133 is more convenient to be matched with the second positioning hole 5143. Therefore, the second positioning hole 5143 is formed in the end cover 514, the second positioning protrusion 5133 is formed in the base rear cover 513, the base rear cover 513 and the end cover 514 are connected through the cooperation of the second positioning hole 5143 and the second positioning protrusion 5133, the detachable connection mode is simple, the rear side of the cleaning cavity 56 is conveniently opened by the base rear cover 513, and cleaning and replacement of the sealing piece 58 are facilitated.

In some embodiments, as shown in fig. 9, the indoor unit 100 of the air conditioner further includes a driving mechanism 60, where the driving mechanism 60 may be a driving motor, a power output end of the driving motor is provided with a driving gear 61, and the driving mechanism 60 drives the first scroll 52, the second scroll 53, and the like to rotate through a transmission mechanism. The transmission mechanism includes a first driven gear 62 and a second driven gear 63, the first driven gear 62 is mounted at one end of the first reel 52, the first driven gear 62 is engaged with the driving gear 61, the second driven gear 63 is mounted at one end of the second reel 53, and the second driven gear 63 is engaged with the first driven gear 62. In this embodiment, during the operation of the self-cleaning mechanism 50, the driving motor operates, and the driving gear 61 on the power output end drives the first driven gear 62 to rotate, so as to drive the first reel 52 to rotate, and at the same time, the first driven gear 62 also drives the second driven gear 63 meshed with the first driven gear 62 to rotate, so as to drive the second reel 53 to rotate. Thereby, under the action of the first reel 52 and the second reel 53, the filter screen 40 tensioned between the first reel 52 and the second reel 53 moves along a predetermined trajectory, so that different areas on the filter screen 40 are sequentially opposed to the self-cleaning mechanism 50, and the filter screen 40 of different areas is cleaned by the self-cleaning mechanism 50. Optionally, the number of teeth of the first driven gear 62 and the second driven gear 63 are consistent, so as to ensure that the rotation speeds of the first reel 52 and the second reel 53 are consistent, and the filter screen 40 is always tensioned on the first reel 52 and the second reel 53.

Specifically, the driving mechanism 60 drives the first reel 52 and the second reel 53 to rotate through the driving gear 61, so as to drive the filter screen 40 to move between the first reel 52 and the second reel 53, so that the filter screen 40 and the cleaning brush 54 abutted against the filter screen 40 move relatively, the cleaning brush 54 cleans the residual or attached sundries and flocks on the filter screen 40, so that the cleaned flocks fall into the dust collecting box 55, and the dust collecting box 55 can be detached and cleaned manually when the sundries in the dust collecting box 55 reach a certain amount. When the foreign matter on the screen 40 is below a certain amount, the sensor may transmit a signal to the controller to control the air conditioner indoor unit 100 to stop the self-cleaning mode.

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 utility model, a "first feature" or "second feature" may include one or more of such features. In the description of the present utility model, "plurality" means two or more. In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween. In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

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 (10)

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

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

the indoor heat exchanger is arranged in the shell and is used for exchanging heat with indoor air entering from the air inlet;

the fan assembly is arranged on one side, far away from the air inlet, of the indoor heat exchanger and is used for enabling indoor air to flow in from the air inlet and flow out from the air outlet after exchanging heat with the indoor heat exchanger;

the filter screen is arranged between the air inlet and the indoor heat exchanger and is used for filtering sundries in indoor air;

at least one self-cleaning mechanism, it is used for cleaing away debris on the filter screen, it includes base, first spool, second spool, cleaning brush and dust collection box to self-cleaning mechanism, the base includes base body, base protecgulum and base hou gai, the base protecgulum is rotatable to be connected the front side of base body, the base hou gai is rotatable to be connected the rear side of base body, the base body, base protecgulum and the base hou gai together prescribe a first opening in the top and the bottom has the second open-ended cleaning chamber, the base protecgulum is used for opening and closing at least a portion of the front side of cleaning chamber, the base hou gai is used for opening and closing at least a portion of the rear side of cleaning chamber, first spool, second spool and the cleaning brush are respectively pivotable connection with the base, first spool is located first opening department, the one end of filter screen with first spool is connected, the other end with the second brush is connected with the second brush is provided for the filter screen is in the first spool, the filter screen is used for removing debris in the filter screen is collected in the reel is in the first spool is used for cleaning the dust collection chamber.

2. The indoor unit of claim 1, wherein the base body comprises:

the two end covers are arranged at intervals along the length direction of the shell, the front base cover is rotatably connected between the front sides of the two end covers, the rear base cover is rotatably connected between the rear sides of the two end covers, and the first scroll, the second scroll and the cleaning brush are pivotally connected between the two end covers;

the first connecting piece is connected between the front sides of the two end covers, the first connecting piece is positioned above the front cover of the base, and the first opening is defined between the first connecting piece and the rear cover of the base;

the second connecting piece is connected between the rear sides of the two end covers, the second connecting piece is positioned below the base rear cover, and the cleaning cavity is defined between the base front cover and the second connecting piece.

3. The indoor unit of claim 2, wherein one of an upper side and a lower side of the base front cover is pivotably connected to both of the end covers;

At least one first positioning structure is arranged between the other side of the upper side and the lower side of the base front cover and at least one end cover, the first positioning structure comprises a first positioning hole and a first positioning protrusion, the first positioning hole is formed in one of the base front cover and the end cover, the first positioning protrusion is arranged on the other one of the base front cover and the end cover, and the first positioning protrusion is detachably matched with the first positioning hole.

4. The indoor unit of claim 3, wherein the two end covers are respectively formed with first pivot holes;

the upper side of the base front cover is provided with a first pivot shaft extending along the length direction of the shell, two ends of the first pivot shaft are respectively and pivotally matched in the first pivot holes of the two end covers, and the lower side of the base front cover can rotate around the central axis of the pivot holes to open and close the front side of the cleaning cavity.

5. The indoor unit of claim 4, wherein the base front cover comprises:

the avoidance section is positioned between the two end covers, the avoidance section protrudes towards the direction away from the central axis of the cleaning brush, and the first pivot shaft is connected to one side of the avoidance section away from the cleaning brush;

The extension section, the extension section extends along upper and lower direction, the upper end of extension section with dodge the lower extreme of section and link to each other, the lower extreme of extension section with the dust collection box cooperation.

6. The indoor unit of claim 5, wherein a connecting section is connected between the first pivot shaft and the avoiding section,

the first pivot axis is tangential to a side surface of the connecting section adjacent the first spool; or (b)

A side surface of the first pivot shaft adjacent the first spool is located on a side of a side surface of the connecting section adjacent the first spool remote from the first spool.

7. The indoor unit of claim 6, wherein the first connector comprises:

a first connection section extending in an up-down direction;

and the upper end of the second connecting section is connected with the lower end of the first connecting section, and the lower end of the second connecting section extends obliquely downwards from front to back.

8. The indoor unit of claim 2, wherein the base rear cover is formed with a recess for receiving an upper end of the second connecting member, a side of the recess adjacent to the cleaning brush is opened, and the upper end of the second connecting member is adapted to abut against an inner wall of the recess.

9. An indoor unit for an air conditioner according to any one of claims 2 to 8, wherein a mounting groove is formed in the base rear cover, a side of the mounting groove facing the first reel is opened, a sealing member is provided in the mounting groove,

the seal is for sealing a gap between the base back cover and the first spool when the base back cover closes the rear side of the cleaning chamber, the seal and the first spool being spaced apart from each other when the base back cover opens the rear side of the cleaning chamber.

10. The indoor unit of claim 8, wherein an underside of the base rear cover is pivotally connected to both of the end covers;

at least one second positioning structure is arranged between the upper side of the base rear cover and at least one end cover, the second positioning structure comprises a second positioning hole and a second positioning protrusion, the second positioning hole is formed in one of the base rear cover and the end cover, the second positioning protrusion is arranged on the other of the base rear cover and the end cover, and the second positioning protrusion is detachably matched with the second positioning hole.

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