Patent Description:
A cleaning assembly may be provided on one side of an indoor unit of a wall-mounted air conditioner for automatically washing the screen. The cleaning assembly and the screen assembly are usually mounted on the chassis, and the relative position between them may be adjusted to mesh the gear of the cleaning assembly with the screen, so that the screen may be driven to move for the washing process.

However, in the above structure, there is no direct assembly relationship between the cleaning assembly and the screen assembly, so that the relative position between the cleaning assembly and the screen assembly may be unstable, and the meshing between the gear of the cleaning assembly and the screen is prone to have defects such as misalignment, jamming, abnormal noise, etc., which leads to a poor transmission reliability of the screen during the washing process.

<CIT> discusses air conditioners, in particular to a water washing module and an air conditioner indoor unit.

In accordance with the present invention, there is provided an indoor unit of a wall-mounted air conditioner as set out in claim <NUM>. Other aspects of the invention can be found in the dependent claims.

According to the indoor unit of the wall-mounted air conditioner as set out in the claims, the cleaning assembly and the screen assembly are fixedly connected by the fastening structure, thereby improving the connection stability between the cleaning assembly and the screen assembly and further improving the engaging stability of the gear of the cleaning assembly and the screen; so that the defects such as misalignment, jamming, abnormal noise, etc. of the engaging transmission between the gear and the screen may be avoided in the process of washing, thereby improving the transmission reliability of the screen in the washing process.

In order to more clearly illustrate the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It will be appreciated that the drawings in the following description are exemplary embodiments of the present invention, and other drawings may be obtained according to the structures shown in the drawings without any creative work for those skilled in the art.

The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

The technical solutions in the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention. It will be appreciated that the described embodiments are exemplary embodiments of the present invention. Other embodiments may fall within the scope of the present invention.

It should be noted that, if there is a directional indicator (such as up, down, left, right, front, rear,. ) in the embodiment of the present invention, it is only used to explain the relative position relationship and movement of the components in a particular posture (as shown in the attached drawings), and if the specific posture changes, the directional indicator will change accordingly.

The present invention provides an indoor unit of a wall-mounted air conditioner.

In some embodiments of the present invention, as shown in <FIG>, the indoor unit <NUM> of the wall-mounted air conditioner includes:.

It will be appreciated that the fastening structure is a structure that securely connects the cleaning assembly <NUM> and the screen assembly <NUM>, which is configured to improve the connection stability between the cleaning assembly <NUM> and the screen assembly <NUM>. Specifically, when the indoor unit <NUM> of the wall-mounted air conditioner is assembled, the cleaning assembly <NUM> and the screen assembly <NUM> are connected by the fastening structure, and a gear <NUM> of the cleaning assembly <NUM> and a screen <NUM> of the screen assembly <NUM> are simultaneously engaged (where the screen <NUM> is provided with an engaging member <NUM> configured for engaging with the gear <NUM>); then, the cleaning assembly <NUM> together with the screen assembly <NUM> are mounted on the chassis <NUM>. As such, the cleaning assembly <NUM> and the screen assembly <NUM> are fixedly connected by the fastening structure, thereby improving the connection stability between the cleaning assembly <NUM> and the screen assembly <NUM> and further improving the engaging stability of the gear <NUM> of the cleaning assembly <NUM> and the screen <NUM> of the screen assembly <NUM>; so that the defects such as misalignment, jamming, abnormal noise, etc. of the engaging transmission between the gear <NUM> and the screen <NUM> may be avoided in the process of washing, thereby improving the transmission reliability of the screen <NUM> in the washing process.

Namely, according to the indoor unit <NUM> of the wall-mounted air conditioner of the present application, the cleaning assembly <NUM> and the screen assembly <NUM> are fixedly connected by the fastening structure, thereby improving the connection stability between the cleaning assembly <NUM> and the screen assembly <NUM> and further improving the engaging stability of the gear <NUM> of the cleaning assembly <NUM> and the screen <NUM>; so that the defects such as misalignment, jamming, abnormal noise, etc. of the engaging transmission between the gear <NUM> and the screen <NUM> may be avoided in the process of washing, thereby improving the transmission reliability of the screen <NUM> in the washing process.

Secondly, the cleaning assembly <NUM> and the screen assembly <NUM> are fixedly connected by the fastening structure, so that loosening of the engaged gear <NUM> and the screen <NUM> due to changed relative position of the cleaning assembly <NUM> and the screen assembly <NUM> caused by shaking and/or collision during transportation may be avoided.

In addition, the assembly sequence of the indoor unit <NUM> of the wall-mounted air conditioner is: the cleaning assembly <NUM> and the screen assembly <NUM> are first fixedly connected by the fastening structure, and then the cleaning assembly <NUM> together with the screen assembly <NUM> are mounted on the chassis <NUM>. The above assembly sequence is very convenient for checking the connection points on the production line.

In another embodiment, there may be various specific structures of the fastening structure, as long as the cleaning assembly <NUM> and the screen assembly <NUM> may be securely connected together to stabilize the relative positions of the two. For example, the fastening structure may include one or more of a snap structure, a threaded structure, a pin connection structure, a welded connection structure, etc. The fastening structure will be exemplified below, and it will be appreciated that many fastening structures are readily apparent to those skilled in the art on the basis of the following examples.

Further, the fastening structure is a detachable structure. As such, inspection, repair, replacement, etc. of the cleaning assembly <NUM> and/or the screen assembly <NUM> may be facilitated.

In some embodiment, as shown in <FIG>, the screen assembly <NUM> includes a screen <NUM> and a grille assembly <NUM>. The cleaning assembly <NUM> includes a cleaning box <NUM> and a roll brush assembly <NUM> mounted on the cleaning box <NUM>, and the gear <NUM> is a part of the roller brush assembly <NUM>. The screen <NUM> is provided with an engaging member <NUM> for engaging with the gear <NUM>. Specifically, the fastening structure connects the cleaning box <NUM> and the grille assembly <NUM>.

In some embodiments, as shown in <FIG>, the grille assembly <NUM> is substantially rectangular.

Further, as shown in <FIG> and <FIG>, the fastening structure includes a first buckle structure and a first threaded structure. As such, the combination of the buckle structure and the threaded structure to secure the cleaning assembly <NUM> and the screen assembly <NUM> not only facilitates positioning during assembly, but also improves the stability of the connection between the cleaning assembly <NUM> and the screen assembly <NUM>. In addition, it is also advantageous to simplify the structure of the fastening structure.

Certainly, the fastening structure may also include a first buckle structure only or a first threaded structure only.

Further, as shown in <FIG> and <FIG>, the cleaning box <NUM> is disposed below the grille assembly <NUM>, and a first connecting member <NUM> extends downwardly from one end of the grille assembly <NUM>.

The first buckle structure includes a first buckle hole <NUM> defined in the first connecting member <NUM> and a first buckle <NUM> protruded from the cleaning box <NUM>. The first buckle <NUM> is adaptively engaged in the first buckle hole <NUM>. Optionally, the first buckle <NUM> is disposed in an outer side of the cleaning box <NUM>.

Specifically, as shown in <FIG>, the cleaning box <NUM> is substantially rectangular. In <FIG> and <FIG>, the first buckle <NUM> is disposed in a left side of the cleaning box <NUM>.

As such, the end of the grille assembly <NUM> may be constrained and connected to the left lateral side of the cleaning box <NUM>.

It will be appreciated that the first buckle <NUM> may also be disposed in the first connecting member <NUM>, and correspondingly, the first buckle hole <NUM> may be defined in the cleaning box <NUM>. Namely, the first buckle structure includes the first buckle hole <NUM> defined in the cleaning box <NUM>, and the first buckle <NUM> protruded from the first connecting member <NUM>, where the first buckle <NUM> is adaptively engaged in the first buckle hole <NUM>.

Specifically, as shown in <FIG> and <FIG>, the first connecting member <NUM> may be provided in a plate shape. As such, the structure and manufacturing process of the first connecting member <NUM> may be simplified.

Specifically, a side surface of the first buckle <NUM> toward the first buckle hole <NUM> is obliquely extended to guide the engagement between the first connecting member <NUM> and the cleaning box <NUM>.

Further, as shown in <FIG>, <FIG> and <FIG>, two of the first connecting members <NUM> are provided at intervals along a front-rear direction, and each first connecting member <NUM> defines the first buckle hole <NUM> respectively, and two of the first buckles <NUM> are provided accordingly. As such, the connection strength and the connection stability may be improved.

Further, as shown in <FIG>, a second connecting member <NUM> extends downwardly from a front portion of the grille assembly <NUM>. The first buckle structure further includes a second buckle hole <NUM> defined in the second connecting member <NUM> and a second buckle <NUM> protruded from the cleaning box <NUM>. The second buckle <NUM> is adaptively engaged in the second buckle hole <NUM>. Optionally, the second buckle <NUM> is disposed in an outer side of the cleaning box <NUM>.

Specifically, in <FIG> and <FIG>, the second buckle <NUM> is disposed in a front side of the cleaning box <NUM>.

As such, the front portion of the grille assembly <NUM> may be constrained and connected with the front lateral side of the cleaning box <NUM>.

It is appreciated that the second buckle <NUM> may also be disposed in the second connecting member <NUM>, and correspondingly, the second buckle hole <NUM> is defined in the cleaning box <NUM>. Namely, the first buckle structure further includes the second buckle hole <NUM> defined in the cleaning box <NUM>, and the second buckle <NUM> protruded from the second connecting member <NUM>, where the second buckle <NUM> is adaptively engaged in the second buckle hole <NUM>.

Specifically, as shown in <FIG> and <FIG>, the second connecting member <NUM> may be provided in a plate shape. As such, the structure and manufacturing process of the second connecting member <NUM> may be simplified.

Specifically, a side surface of the second buckle <NUM> toward the second buckle hole <NUM> is obliquely extended to further guide the engagement between the first connecting member <NUM> and the cleaning box <NUM>.

Further, as shown in <FIG> and <FIG>, two of the second connecting members <NUM> are provided at intervals along a length direction of the screen assembly <NUM> (namely the left-right direction in <FIG>), and each second connecting member <NUM> defines a second buckle hole <NUM> respectively, and two of the second buckle <NUM> are provided accordingly. As such, the connection strength and the connection stability may be improved.

It will be appreciated that the first connecting member <NUM> extends downwardly from the end of the grille assembly <NUM>, and the first buckle hole <NUM> is defined in the first connecting member <NUM> to be engaged with the first buckle <NUM> disposed in the cleaning box <NUM>, so that the end of the grille assembly <NUM> and the left lateral side of the cleaning box may be constrained and connected. Further, the second connecting member <NUM> extends downwardly from the front portion of the grille assembly <NUM>, and the second buckle hole <NUM> is defined in the second connecting member to be engaged with the second buckle <NUM> disposed in the cleaning box, so that the front portion of the grille assembly <NUM> and the front lateral side of the cleaning box <NUM> may be constrained and connected. As such, the cleaning box <NUM> and the grille assembly <NUM> may be fastened.

It should be noted that, the first buckle structure may also be set in other structural forms according to the first buckle structure mentioned above, which will not be detailed here.

Further, as shown in <FIG>, a third connecting member <NUM> extends upwardly from an edge of an opening of the cleaning box <NUM>, where the first threaded structure includes a first locking screw (not shown), and the first locking screw penetrates the third connecting member <NUM> and is threaded with one end of the grille assembly <NUM>, so as to connect the cleaning box <NUM> and the grille assembly <NUM>.

Specifically, as shown in <FIG>, the first threaded structure further includes a first via hole <NUM> defined in the third connecting member <NUM>, and a first threaded hole <NUM> defined in an end surface of the grille assembly <NUM>, where the first locking screw penetrates the first via hole <NUM> and is threaded to the first threaded hole <NUM>.

It will be appreciated that an end surface where the first threaded hole <NUM> located is an end surface of an end where the first connecting member <NUM> located, and the third connecting member <NUM> is disposed on a left lateral side of the cleaning box <NUM>.

As such, the strength of the connection between the cleaning box <NUM> and the grille assembly <NUM> may be further enhanced to further improve the stability of the connection between the cleaning assembly <NUM> and the screen assembly <NUM>.

Specifically, as shown in <FIG> and <FIG>, the third connecting member <NUM> is disposed on a rear side of the edge of the opening of the cleaning box <NUM>, and the first threaded hole <NUM> is defined in a rear side of the end face.

Further, the first via hole <NUM> may be a threaded hole. As such, the connection ability of the first threaded structure may be improved, so as to improve the connection stability between the cleaning box <NUM> and the grille assembly <NUM>.

It will be appreciated that the first locking screw may also be replaced by a bolt or the like.

It should be noted that, the first threaded structure may also be set in other structural forms according to the first threaded structure mentioned above, which will not be detailed here.

Further, as shown in <FIG>, the chassis <NUM> includes a bottom wall <NUM> and a rear side wall <NUM> connected to a rear side of the bottom wall <NUM>.

Specifically, the bottom wall <NUM> and the rear side wall <NUM> may be integrally formed.

As shown in <FIG>, the bottom wall <NUM> defines an accommodating space <NUM>, and a lower portion of the cleaning assembly <NUM> is mounted in the accommodating space <NUM>.

Specifically, a lower portion of the cleaning box <NUM> is mounted in the accommodating space <NUM>.

As such, a lower portion of the cleaning assembly <NUM> may be restrained to ensure mounting stability between the cleaning assembly <NUM> and the screen assembly <NUM> on the chassis <NUM>.

Specifically, as shown in <FIG>, two limit plates (not labeled) are provided at intervals on the bottom wall <NUM> in the length direction of the chassis <NUM> (namely the left-right direction in <FIG>), and the two limit plates and the rear side walls <NUM> are enclosed to define the accommodating space <NUM> cooperatively. As such, the structure of the accommodating space <NUM> may be simplified.

It is appreciated that the accommodating space <NUM> may also be set to other structural forms.

Further, as shown in <FIG>, <FIG>, and <FIG>, an upper portion of the cleaning assembly <NUM> is connected with the rear side wall <NUM> by a second threaded structure, and/or the screen assembly <NUM> is connected with the rear side wall <NUM> by a second buckle structure.

Specifically, an upper portion of the cleaning box <NUM> is connected with the rear side wall <NUM> by a second threaded structure, and/or the grille assembly <NUM> is connected with the rear side wall <NUM> by a second buckle structure.

As such, an upper portion of the cleaning assembly <NUM> may be restrained to further ensure mounting stability between the cleaning assembly <NUM> and the screen assembly <NUM> on the chassis <NUM>.

In some embodiments of the present invention, as shown in <FIG>, <FIG>, and <FIG>, an upper portion of the cleaning assembly <NUM> is connected with the rear side wall <NUM> by a second threaded structure, and the screen assembly <NUM> is connected with the rear side wall <NUM> by a second buckle structure. As such, not only the mounting stability between the cleaning assembly <NUM> and the screen assembly <NUM> on the chassis <NUM> may be further improved and shaking during transportation may be avoided; but also the installation difficulty may be reduced during installation, since the upper portion of the cleaning assembly <NUM> may be firstly fixed through the second buckle structure and then the second threaded structure is installed.

Further, as shown in <FIG>, <FIG>, and <FIG>, a fourth connecting member <NUM> is protruded from the cleaning box <NUM> and extended away from the other end of the screen assembly <NUM>. The second threaded structure includes a second locking screw (not shown), and the second locking screw penetrates the fourth connecting member <NUM> and is threaded with the rear side wall <NUM>. Optionally, the fourth connecting member <NUM> is disposed on an outer lateral side of the cleaning box <NUM>.

Specifically, the second threaded structure further includes a second via hole <NUM> defined in the fourth connecting member <NUM> and a second threaded hole <NUM> defined in the rear side wall <NUM>. The second locking screw penetrates the second via hole <NUM> and is threaded into the second threaded hole <NUM>.

As such, the upper portion of the cleaning box <NUM> may be mounted on the chassis <NUM>.

Specifically, in <FIG> and <FIG>, the fourth connecting member <NUM> is disposed on the left lateral side of the cleaning box <NUM>.

Specifically, as shown in <FIG> and <FIG>, a threaded hole column <NUM> may be protruded from the rear side wall <NUM>, and the second threaded hole <NUM> may be defined in the threaded hole column121.

Further, the second via hole <NUM> may be a threaded hole. As such, the connection ability of the second threaded structure may be improved, so as to improve the connection stability between the cleaning box <NUM> and the chassis <NUM>.

It will be appreciated that the second locking screw may also be replaced by a bolt or the like.

Further, as shown in <FIG>, <FIG> and <FIG>, the second buckle structure includes a third buckle hole <NUM> defined in the rear side wall <NUM> and an inserting buckle protruded from the screen assembly <NUM> (not shown), and the inserting buckle is inserted into the third fastening buckle <NUM>. Optionally, the inserting buckle is disposed on an outer side of the screen assembly <NUM>.

Specifically, the inserting buckle may be disposed on an outer side of the grille assembly <NUM>.

As such, the screen assembly <NUM> may be mounted on the chassis <NUM> to improve mounting stability between the cleaning assembly <NUM> and the screen assembly <NUM> on the chassis <NUM>.

In some embodiments, the inserting buckle may be disposed on a rear side of the grille assembly <NUM>.

It will be appreciated that the inserting buckle may also be disposed on the rear side wall <NUM>, and correspondingly, the third buckle hole <NUM> may be defined in the screen assembly <NUM>. Namely, the second buckle structure includes the third buckle hole <NUM> defined in the screen assembly <NUM> and the inserting buckle protruded from the rear side wall <NUM>, and the inserting buckle is inserted into the third buckle hole <NUM>.

Further, a plurality of the third buckle holes <NUM> are provided at intervals in the length direction of the chassis <NUM> (namely the left-right direction in <FIG>), and a plurality of inserting buckles are correspondingly provided. As such, the mounting stability between the screen assembly <NUM> and the chassis <NUM> may be improved.

Further, as shown in <FIG>, <FIG>, <FIG>, and <FIG>, the fourth connecting member <NUM> may be integrally formed on a rear side edge of the third connecting member <NUM>. As such, the structure of the cleaning box <NUM> may be simplified.

Further, the engaging member <NUM> may be a rack. Thus, the engaging between the engaging member <NUM> and the gear <NUM> may be achieved.

Specifically, two of the racks may be provided and disposed on both sides of the screen <NUM> respectively.

Certainly, the engaging member <NUM> may also be set to other structural forms. For example, the engaging member <NUM> defines at least one engaging hole for engaging with the gear <NUM>.

Further, as shown in <FIG>, the indoor unit <NUM> of the wall-mounted air conditioner further includes a face frame <NUM> detachably mounted on the chassis <NUM>, where the face frame <NUM> and the chassis <NUM> defines an accommodating cavity (not labeled) cooperatively, and the screen assembly <NUM> and the cleaning assembly <NUM> are mounted in the accommodating cavity.

Specifically, when the indoor unit <NUM> of the wall-mounted air conditioner is assembled, the face frame <NUM> is mounted after the cleaning assembly <NUM> and the screen assembly <NUM> are mounted on the chassis <NUM>.

Specifically, the face frame <NUM> defines an air outlet corresponding to the screen assembly <NUM>.

Specifically, as shown in <FIG>, the roller brush assembly <NUM> generally includes a roller brush <NUM> rotatably mounted at the opening of the cleaning box <NUM>, and two gears <NUM> mounted on both ends of the roller brush <NUM>. The roller brush <NUM> is used to clean the screen <NUM>. The gear <NUM> is used to engage with the screen <NUM> to drive the screen <NUM> to move.

In some embodiments, the roller brush <NUM> includes a roller (not labeled) rotatably mounted on the cleaning box <NUM>, and a brush (not labeled) wound on the roller, where the gear <NUM> is mounted on roller.

In some embodiments, the cleaning assembly <NUM> further includes a water-washing power assembly mounted on the cleaning box <NUM> for driving the roller to rotate.

The specific structure of the water-washing power assembly may be referred to related documents, and will not be repeated here.

Further, the grille assembly <NUM> defines two accommodating sliding slots (not shown) at intervals in the up-down direction. The screen <NUM> is slidably mounted in one of the accommodating sliding slots. The opening of the accommodating sliding slot is disposed adjacent to the roller brush assembly <NUM>, and one end of the screen <NUM> protrudes from the opening to engage the engaging member <NUM> of the screen <NUM> with the gear <NUM>.

When the screen <NUM> is needed to be washed, the gear <NUM> on the roller may be driven to rotate, so as to drive the gear <NUM> to drive the screen <NUM> to slide in the accommodating sliding slot. And one end of the screen <NUM> bypasses the roller <NUM> to enter the other accommodating sliding slot, the screen <NUM> is cleaned by the roller brush <NUM> during the process.

Further, as shown in <FIG>, the grille assembly <NUM> includes a bottom bracket <NUM>, a screen bracket <NUM>, and an air inlet grille <NUM> which are sequentially stacked, and the screen bracket <NUM> is disposed between the bottom bracket <NUM> and the air inlet grille <NUM>. One of the accommodating sliding slot is defined between the air inlet grille <NUM> and the screen <NUM> bracket, and the other accommodating sliding slot is defined between the bottom bracket <NUM> and the screen bracket <NUM>.

Specifically, as shown in <FIG>, the first connecting member <NUM> and the second connecting member <NUM> are both disposed on the air inlet grille <NUM>.

Other structures of the indoor unit <NUM> of the wall-mounted air conditioner may be referred to the related designs, and will not be described herein.

Claim 1:
An indoor unit (<NUM>) of a wall-mounted air conditioner comprising:
a chassis (<NUM>);
a screen assembly (<NUM>); and
a cleaning assembly (<NUM>) disposed at one end of the screen assembly (<NUM>) and connected with the screen assembly (<NUM>) by a fastening structure, wherein the fastening structure is a detachable structure, that comprises a first threaded structure;
wherein the cleaning assembly (<NUM>) is mounted on the chassis (<NUM>), or the screen assembly (<NUM>) is mounted on the chassis (<NUM>), or the cleaning assembly (<NUM>) and the screen assembly (<NUM>) are both mounted on the chassis (<NUM>);
wherein the screen assembly (<NUM>) comprises
a grille assembly (<NUM>), and
wherein the cleaning assembly (<NUM>) comprises
a cleaning box (<NUM>) disposed below the grille assembly (<NUM>) and comprising a third connecting member (<NUM>) extending upwardly from an edge of an opening of the cleaning box (<NUM>), and
wherein the first threaded structure comprises
a first locking screw penetrating the third connecting member (<NUM>) and threaded with one end of the grille assembly (<NUM>);
wherein the chassis (<NUM>) comprises:
a bottom wall (<NUM>) defining an accommodating space (<NUM>); and
a rear side wall (<NUM>) connected to a rear side of the bottom wall (<NUM>),
wherein a lower portion of the cleaning assembly (<NUM>) is mounted in the accommodating space (<NUM>);
wherein an upper portion of the cleaning assembly (<NUM>) is connected with the rear side wall (<NUM>) by a second threaded structure, the cleaning assembly (<NUM>) comprises
a fourth connecting member (<NUM>) protruded from the cleaning box (<NUM>) and extended away from the other end of the screen assembly (<NUM>); and
wherein the second threaded structure comprises
a second locking screw penetrating the fourth connecting member (<NUM>) and threaded with the rear side wall (<NUM>); and
wherein the fourth connecting member (<NUM>) is integrally formed on a rear side edge of the third connecting member (<NUM>).