CN109764525B - Rear frame assembly and air conditioner - Google Patents

Abstract

The invention provides a back frame assembly and an air conditioner, wherein the back frame assembly comprises: fresh air duct; the back frame, the new trend wind channel is located the inboard of back frame, and wherein, the inboard of back frame is formed with the first space that is suitable for holding temperature regulation module and is suitable for holding air treatment module's second space, and the new trend wind channel is located between first space and the second space, and the new trend wind channel is configured to supply air treatment module to exhaust. The back frame subassembly that this scheme provided, when realizing assembly, holding, wind-guiding purpose, the structure is simpler, spare part is fewer, and the equipment is also more convenient.

Description

Rear frame assembly and air conditioner

Technical Field

The invention relates to the field of air conditioners, in particular to a rear frame assembly and an air conditioner.

Background

As shown in fig. 1, in the conventional air conditioner, a rear frame assembly is roughly divided into three parts, namely an upper housing assembly 1, a lower housing assembly 3 and an intermediate support member 2 between the upper housing assembly 1 and the lower housing assembly 3, wherein the upper housing assembly 1 and the lower housing assembly 3 are connected through the intermediate support member 2, and a fresh air duct for exhausting air from an air treatment module in the lower housing assembly 3 to an indoor space is formed in the intermediate support member 2.

Disclosure of Invention

In order to solve at least one of the above problems, an object of the present invention is to provide a rear frame assembly.

Another object of the present invention is to provide an air conditioner having the above rear frame assembly.

To achieve the above object, an embodiment of a first aspect of the present invention provides a rear frame assembly for an air conditioner, the rear frame assembly comprising: fresh air duct; the back frame, the new trend wind channel is located the inboard of back frame, wherein, the inboard of back frame is formed with and is suitable for holding temperature regulation module's first space and is suitable for holding air treatment module's second space, the new trend wind channel is located between first space with the second space, just the new trend wind channel is configured for the confession air treatment module is aired exhaust.

According to the rear frame assembly provided by the embodiment of the invention, the fresh air duct is accommodated in the inner side of the rear frame, and the inner side of the rear frame is provided with the space for installing the air treatment module and the temperature regulation module.

In addition, the rear frame assembly in the above embodiment provided by the invention can also have the following additional technical features:

in the above technical solution, the first space and the second space are distributed up and down; the back frame assembly further comprises a reinforcing piece, the reinforcing piece corresponds to the first space, the second space and the fresh air duct, and the part of the reinforcing piece corresponding to the first space and the part of the reinforcing piece corresponding to the second space are respectively connected with the back frame.

In this scheme, the back frame subassembly still includes the reinforcement, the reinforcement corresponds the position in first space and the reinforcement corresponds the position in second space and links to each other with the back frame respectively, so, on the one hand, the reinforcement can be to the back frame reinforcing of supporting from top to bottom, make the back frame anti bending force ability promote, be difficult to produce the deformation such as subsidence, crooked, product quality is better, and this structure is in the corresponding air treatment module of installation or temperature regulation module in being located the upside in first space and second space, because the back frame obtains rigidity reinforcement through the reinforcement, thereby it is more convenient to fix the back frame to need not to arrange the workman in addition, the equipment has also reduced the cost of labor, on the other hand, still keep away the protection effectively to the fresh air wind channel, prevent that the gravity of the spare part that is located the fresh air wind channel upside in the air conditioner from acting on the fresh air channel, the effect that the effect of compressing tightly reduces that the fresh air wind channel received, the intensity requirement also correspondingly reduces to the fresh air channel, make can more nimble material, do benefit to reducing product cost, and this also make the risk of improving the fresh air channel greatly, the product rate of good product rate of damage.

In any of the above technical solutions, the rear frame has a frame opening, and the side edges of the rear frame on two opposite sides of the frame opening are respectively provided with the reinforcing member.

In this scheme, the back frame is equipped with the reinforcement respectively on the side of the both sides that the frame mouth is relative, and is better to the anti-bending reinforcement effect of back frame, and also more convenient to the reinforcement with the equipment of back frame.

In any of the above technical solutions, a first connecting edge and a second connecting edge are formed on the fresh air duct, the first connecting edge is connected with the rear frame, and the second connecting edge is connected with the reinforcing piece.

In this scheme, the new trend wind channel is realized linking to each other with back frame and reinforcement through first connected limit and second connected limit for on the one hand, make the fixing of new trend wind channel more reliable, on the other hand, utilize the new trend wind channel to be connected with back frame, can do benefit to the linking precision of guaranteeing new trend wind channel and air treatment module and with the linking precision between the new trend air outlet on the back frame, can correspondingly reduce the air leakage risk like this, utilize the new trend wind channel to be connected with the reinforcement, like this, can make the relative position precision of reinforcement and new trend wind channel more ensured, make the reinforcement to the empty guard effect of avoiding of new trend wind channel more reliable, reduce the pressure loss risk nature in new trend wind channel.

In any of the above technical solutions, the rear frame is provided with a lug, the fresh air duct is provided with a convex edge, and the convex edge is supported on the lug, so that the rear frame supports the fresh air duct.

In this scheme, the chimb is taken and is leaned on the lug, makes back frame support new trend wind channel, and like this, new trend wind channel and the connection structure of back frame are simple, and the installation of being convenient for is favorable to promoting the equipment speed, shortens installation time.

In any of the above technical solutions, the fresh air duct has a channel for air flow to pass through, the channel has an inlet and an outlet, and the flow area of the channel is decreased first and then increased along the direction from the inlet to the outlet.

In this scheme, the new trend wind channel has the passageway that supplies the air current to pass through, and the passageway provides the circulation direction for the air current, and reduces earlier the back increase along the flow area of import to the direction passageway of export, can play downwind rectification's effect like this, reduces the air current noise in the new trend wind channel, and can form venturi effect, promotes the wind-guiding efficiency in new trend wind channel.

In any of the above technical solutions, the intersection line of the plane where the center line of the channel is located and the inner wall surface of the channel is a molded line of the channel, where the molded line includes a first arc segment, a second arc segment and a straight line segment, and the straight line segment is located between the first arc segment and the second arc segment.

In the scheme, the molded line of the channel comprises a straight line segment and a first arc segment and a second arc segment which are positioned at two ends of the straight line segment, so that the air flow flowing through the channel forms an arc-straight line-arc flowing form on the wall surface of the channel, the air flow is straightened, and the air flow noise in the fresh air channel is reduced.

In any of the above technical solutions, the first arc section is closer to the inlet than the second arc section, and the second arc section is closer to the outlet than the first arc section, wherein the curvature of the first arc section is greater than the curvature of the second arc section.

In the scheme, the curvature of the first arc section is larger than that of the second arc section, so that the static pressure energy of gas in the channel adjacent to the inlet is larger than that adjacent to the outlet, the flow of air is further promoted by utilizing the pressure difference, the air guiding efficiency is improved, and meanwhile, the wind resistance noise is reduced.

In any of the above technical solutions, a first plugging ring and a second plugging ring for plugging and assembling the fresh air duct are formed on the fresh air duct, the first plugging ring defines the inlet, and the second plugging ring defines the outlet.

In this scheme, the import is injectd to first grafting ring, and the export is injectd to the second grafting ring, like this, realizes that fresh air wind channel is pegged graft the equipment through first grafting ring and second grafting ring, can make the fresh air wind channel in import and export department link up the transition more naturally, when guaranteeing product assembly convenience, avoids advancing, export noise surge problem.

In any of the above technical solutions, the fresh air duct is an injection molding piece.

In this scheme, new trend wind channel is the injection molding, can reduce product cost, also does benefit to new trend wind channel, back frame subassembly and even air conditioner and subtracts heavy, and wherein, through locating new trend wind channel between first space and the second space, utilizes the reinforcement to form the protection of keeping away the sky to new trend wind channel, like this, along with the improvement of the loaded condition in new trend wind channel, the injection molding is enough to satisfy the intensity demand to new trend wind channel, also can not appear the new trend wind channel by the problem of pressure loss.

In any of the above technical solutions, the rear frame is an integrally formed part.

In this scheme, the back frame is integrated into one piece part, and compared with the three-section integrated structure that current back frame is for last casing subassembly, lower casing subassembly and intermediate strut member are constituteed, the equipment step of back frame has been saved for the production technology of product is more simplified, and product production efficiency is higher, has the advantage that the outward appearance continuity is better, more pleasing to the eye simultaneously.

And this structure utilizes the reinforcement to support from top to bottom this integrated into one piece's back frame for the anti bending force ability of back frame promotes, and the back frame is difficult to produce subsides, bending deformation, and product quality is better, and this structure is in the corresponding air treatment module of installation or temperature regulation module in being located the upside in first space and second space, because the back frame obtains rigidity through the reinforcement and reinforces, thereby need not to arrange the workman in addition and hold up fixed back frame, and the equipment is more convenient, has also reduced the cost of labor.

An embodiment of the second aspect of the present invention provides an air conditioner, including a rear frame assembly as set forth in any one of the above-mentioned aspects; a temperature adjusting module provided in the first space of the rear frame assembly; and an air treatment module provided in the second space of the rear frame assembly.

Optionally, the temperature regulation module comprises an evaporator.

The air conditioner provided by the embodiment of the second aspect of the present invention has all the above advantages by providing the rear frame assembly described in any one of the above technical solutions, and will not be described herein.

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

Drawings

The foregoing and/or additional aspects and advantages of the invention 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 exploded view of a prior art rear frame assembly;

FIG. 2 is a schematic view of an exploded view of a rear frame assembly according to one embodiment of the present invention;

FIG. 3 is a schematic front view of the rear frame shown in FIG. 2;

FIG. 4 is a schematic cross-sectional view of the A-A direction shown in FIG. 3;

FIG. 5 is a schematic cross-sectional view of the B-B direction shown in FIG. 3;

FIG. 6 is a schematic perspective view of the rear frame shown in FIG. 3;

fig. 7 is an enlarged schematic view of the portion C shown in fig. 6;

fig. 8 is an enlarged schematic view of the portion D shown in fig. 6;

FIG. 9 is an enlarged schematic view of the portion E shown in FIG. 6;

FIG. 10 is a schematic perspective view of the stiffener shown in FIG. 2

Fig. 11 is an enlarged schematic view of the structure of the F part shown in fig. 10;

FIG. 12 is a schematic perspective view of the fresh air duct shown in FIG. 2;

FIG. 13 is a schematic top view of the fresh air duct shown in FIG. 2;

FIG. 14 is a schematic cross-sectional structural view in the direction C-C shown in FIG. 13;

fig. 15 is a perspective view showing a partial structure of an air conditioner according to an embodiment of the present invention;

FIG. 16 is a schematic cross-sectional view of an air conditioner according to an embodiment of the present invention;

fig. 17 is a schematic front view showing a part of the structure of an air conditioner according to an embodiment of the present invention.

The correspondence between the reference numerals and the component names in fig. 1 is:

an upper housing assembly 1, an intermediate support member 2, and a lower housing assembly 3.

Wherein, the correspondence between the reference numerals and the component names in fig. 2 to 17 is:

fresh air duct 100, first connecting edge 110, second connecting edge 120, first flange 130A, second flange 130B, channel 140, inlet 141, outlet 142, molded line 150, first arc segment 151, second arc segment 152, straight line segment 153, first plug ring 161, second plug ring 162,

the rear frame 200, the first space 210, the second space 220, the frame opening 230, the side 231, the first lug 250A, the second lug 250B, the slide groove 251, the connection lug 252, the connection hole 2521, the connection post 260, the screw hole 261, the insertion tongue 270, the step portion 281, the fixing hole 282,

the reinforcement 300, the through-hole 310, the socket 320, the relief hole 330,

the grid 400 is provided with a plurality of apertures,

the air conditioner 500, the first front frame 510, the second front frame 520, the decorative plate 530, the temperature adjusting module 540, the evaporator 541, the fan 542, the fan housing 550, and the opening 560.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

The following describes a rear frame assembly and an air conditioner 500 according to some embodiments of the present invention with reference to fig. 2 to 17.

Embodiments of the present invention provide a rear frame assembly comprising: fresh air duct 100 and rear frame 200.

Specifically, as shown in fig. 2, the rear frame assembly is used for an air conditioner, wherein the fresh air duct 100 is an integrally formed part; the fresh air duct 100 is disposed on the inner side of the rear frame 200, wherein a first space 210 adapted to accommodate the temperature adjusting module 540 and a second space 220 adapted to accommodate the air processing module are formed on the inner side of the rear frame 200, the fresh air duct 100 is disposed between the first space 210 and the second space 220, and the fresh air duct 100 is configured to exhaust air from the air processing module.

In the rear frame assembly provided by the embodiment of the invention, the fresh air duct 100 is accommodated in the inner side of the rear frame 200, and the inner side of the rear frame 200 forms a space for installing the air treatment module and the temperature regulation module, compared with the structure formed by splicing the lower shell assembly 3, the upper shell assembly 1 and the middle supporting part 2 in the prior art, the rear frame assembly has the advantages of simpler structure, fewer parts and more convenient assembly while achieving the purposes of assembly, accommodation and air guiding.

In one embodiment of the invention, as shown in FIG. 14, fresh air duct 100 is an integral component.

More specifically, the existing intermediate support member 2 is an assembly formed by splicing a plurality of members, and the fresh air duct formed in the intermediate support member 2 is also a multi-section combined structure formed by splicing, so that the problems of complex assembly process, unreliable sealing performance, poor air guiding performance and the like of the fresh air duct exist.

In this scheme, the inboard of back frame 200 sets up integrated into one piece's new trend wind channel 100 and is used for supplying the air treatment module to exhaust like this, compared with the multistage new trend wind channel structure of amalgamation formation in the prior art, integrated into one piece's new trend wind channel 100 structure is simpler, need not loaded down with trivial details assembling process, the packaging technology of product improves, do benefit to the assembly efficiency that improves the product, also more do benefit to and guarantee the equipment adaptation precision of new trend wind channel 100 and back frame 200, avoid the suitability of new trend wind channel 100 and back frame 200 to receive new trend wind channel 100 amalgamation precision interference, thereby realize that new trend wind channel 100 is assembled more accurately in the inboard of back frame 200, make new trend wind channel 100 wind-guiding accuracy promote, simultaneously, integrated into one piece's new trend wind channel 100's internal surface can not appear the seam basically, this windage and wind-resistant noise that makes in the new trend wind channel 100 are less, the wind-guiding performance of having promoted the seam position air leakage's problem has also been avoided.

In one embodiment of the invention, as shown in fig. 3, 4, 5 and 6, the first space 210 and the second space 220 are distributed up and down; the rear frame assembly further comprises a reinforcing member 300, the reinforcing member 300 corresponds to the first space 210, the second space 220 and the fresh air duct 100, and the part of the reinforcing member 300 corresponding to the first space 210 and the part of the reinforcing member 300 corresponding to the second space 220 are respectively connected with the rear frame 200. In this way, on one hand, the reinforcement 300 can support and strengthen the back frame 200 from top to bottom, make the anti bending force ability of back frame 200 promote, be difficult to produce and collapse, warp etc. deformation, product quality is better, and this structure is when installing corresponding air treatment module or temperature regulation module 540 in to the one that is located the upside in first space 210 and second space 220, because back frame 200 obtains rigidity reinforcement through reinforcement 300, thereby need not to arrange the workman in addition and hold up fixed back frame, the equipment is more convenient, the cost of labor has also been reduced, on the other hand, still keep away empty protection effectively to fresh air duct 100 with the reinforcement 300, prevent that the gravity of the spare part that is located fresh air duct 100 upside in the air conditioner from acting on fresh air duct 100, in this way, the compaction effect that fresh air duct 100 received reduces, the intensity requirement to fresh air duct 100 also reduces correspondingly, make fresh air duct 100 can select the material more nimble, do benefit to reducing product cost, and this also make the damage risk of fresh air duct 100 also greatly reduce, do benefit to the yields of promoting the product.

In one embodiment of the present invention, as shown in fig. 3, 4, 5 and 6, the rear frame 200 has a concave structure in which a middle portion is recessed rearward and left and right sides 231 are extended forward, a frame opening 230 is defined between the left and right sides 231 of the rear frame 200 at a distance, and reinforcing members 300 are respectively provided on the left and right sides 231 of the rear frame 200. In this way, the two reinforcing members 300 can support the rear frame 200 up and down to basically ensure the stability of the rear frame 200, so that the bending resistance strengthening effect of the rear frame 200 is better, and the assembly of the reinforcing members 300 and the rear frame 200 is more convenient.

Specifically, as shown in fig. 6 and 9, the rear frame 200 is provided with a threaded hole 261, as shown in fig. 11, the stiffener 300 is provided with a through hole 310, and a threaded fastener passes through the through hole 310 and is in threaded connection with the threaded hole 261, so that the stiffener 300 is locked on the rear frame 200, the connection reliability of the rear frame 200 and the stiffener 300 is effectively ensured, and the stability of the product is better.

In more detail, as shown in fig. 9, the rear frame 200 is integrally formed with a connection post 260, and a screw hole 261 is provided in the connection post 260. This is more advantageous in securing the fitting length of the screw coupling member with the screw hole 261, and improving the screw coupling reliability of the reinforcement 300 with the rear frame 200.

Preferably, as shown in fig. 6, 9 and 10, the rear frame 200 is provided with a plug 270, and as shown in fig. 11, the stiffener 300 is provided with a socket 320, and the plug 270 is plugged into the socket 320. The reinforcement 300 and the rear frame 200 are conveniently and rapidly positioned and pre-fixed, and the assembly convenience of the product is improved.

In one embodiment of the present invention, the rear frame 200 is provided with a lug, and the fresh air duct 100 is formed with a convex edge, and the convex edge is abutted against the lug, so that the rear frame 200 supports the fresh air duct 100. Like this, the chimb is taken and is leaned on the lug, makes back frame 200 support fresh air duct 100, and like this, the connection structure of fresh air duct 100 and back frame 200 is simple, and the installation of being convenient for is favorable to promoting the equipment speed, shortens installation time.

In more detail, as shown in fig. 6, a first lug 250A and a second lug 250B are provided at a position where an inner wall surface of the rear frame 200 is located between the first space 210 and the second space 220, the first lug 250A is located above the second lug 250B and is spaced up and down from the second lug 250B to define a chute 251, convex edges protruding to sides are provided at upper and lower ends of the fresh air duct 100, respectively, the convex edge at the upper end of the fresh air duct 100 is abutted against the first lug 250A, and the convex edge at the lower end of the fresh air duct 100 is abutted against the second lug 250B, so that the fresh air duct 100 can slide into the inside of the rear frame 200 along the first lug 250A and the second lug 250B, and the rear frame 200 supports the fresh air duct 100.

Preferably, as shown in fig. 3, the first lug 250A has a two-segment structure, two segments of the first lug 250A are correspondingly disposed on two opposite side wall surfaces of the rear frame 200, and the two segments of the first lug 250A and the rear frame 200 are in smooth transition with the part between the two segments of the first lug 250A and are adapted to the peripheral contour of the fresh air duct 100, so that the fresh air duct 100 and the chute 251 form an embedded fit, the fresh air duct 100 is automatically positioned in the chute 251, and the fresh air duct 100 is not easy to shake in the chute 251, thereby improving the assembly precision and the assembly stability of the fresh air duct 100.

Further, a portion of the reinforcement 300 is located at a side of the sliding groove 251 and is connected to the sliding groove 251. In this way, the reinforcement 300 has a shaping supporting function on the sliding groove 251 of the rear frame 200, and can protect the fresh air duct 100 from the air more reliably.

In other embodiments, the stiffener 300 may not be connected to the runner 251.

Further, as shown in fig. 7, the first and second lugs 250A and 250B are respectively configured with a step portion 281, the step portion 281 is provided with a fixing hole 282, a portion of the reinforcement 300 corresponding to the step portion 281 is adapted to the step portion 281, and as shown in fig. 10, the reinforcement 300 is provided with a relief hole 330 corresponding to the fixing hole 282, and a screw is screwed into the fixing hole 282 after passing through the relief hole 330, so as to lock the reinforcement 300 and the step portion 281. By pressing the reinforcement 300 against the step portion 281 and keeping fit with the shape of the step portion 281, the connection stability between the reinforcement 300 and the chute 251 can be enhanced, and the avoidance hole 330 and the fixing hole 282 can be positioned quickly, so that the assembly operation of the product is simplified.

In one embodiment of the present invention, the fresh air duct 100 is connected to the rear frame 200 and to the stiffener 300.

As shown in fig. 12, the fresh air duct 100 is formed with a first connection edge 110 and a second connection edge 120, the first connection edge 110 is connected to the rear frame 200, and the second connection edge 120 is connected to the reinforcement 300. On the one hand, make the fixation of new trend wind channel 100 more reliable, on the other hand, utilize the connection of new trend wind channel 100 and back frame 200, can do benefit to the corresponding linking precision of assurance new trend wind channel 100 and air treatment module and new trend wind channel 100 and new trend air outlet between corresponding linking precision, can correspondingly reduce the air leakage risk like this, utilize new trend wind channel 100 to be connected with reinforcement 300, like this, can make the relative position precision of reinforcement 300 and new trend wind channel 100 more ensured, make reinforcement 300 to the empty protection effect of avoiding of new trend wind channel 100 more reliable, reduce the pressure loss risk of new trend wind channel 100.

Specifically, the first connection edge 110 and the second connection edge 120 are fixed to the rear frame 200 and the stiffener 300 by screws, respectively. Of course, the present embodiment is not limited thereto, and those skilled in the art may design the snap connection between the first connecting edge 110 and the rear frame 200, and the snap connection between the second connecting edge 120 and the stiffener 300.

In more detail, as shown in fig. 8, the rear frame 200 is provided with a connecting lug 252 on the second lug 250B, a connecting hole 2521 is formed on the connecting lug 252, the first connecting edge 110 is formed at the rear end of the fresh air duct 100, when the fresh air duct 100 is mounted in place in the chute 251, the connecting lug 252 just corresponds to the first connecting edge 110, and the connecting lug 252 is fixed with the first connecting edge 110 by using a screw penetrating through the connecting hole 2521, so as to lock the fresh air duct 100 and the rear frame 200.

In addition, as shown in fig. 12 and 13, the second connecting edge 120 may specifically include flanges formed on left and right sides of the front end of the fresh air duct 100, and when the fresh air duct 100 is installed in place in the chute 251, the second connecting edge 120 just abuts against the stiffener 300 on the left and right sides of the rear frame 200, and the stiffener 300 is fixed to the second connecting edge 120 by using screws, so as to lock the fresh air duct 100 and the stiffener 300.

More preferably, as shown in fig. 12, the left and right sides of the upper end of the fresh air duct 100 are respectively provided with the second connecting edges 120, the left and right sides of the lower end of the fresh air duct 100 are respectively provided with the second connecting edges 120, and the second connecting edges 120 of the upper end and the lower end of the fresh air duct 100 are respectively connected with the reinforcement 300, so that the reinforcement 300 can support and reinforce the fresh air duct 100 up and down, and prevent the fresh air duct 100 from being compressed.

In one embodiment of the present invention, as shown in fig. 12 and 14, the fresh air duct 100 has a channel 140 through which an air flow passes, the channel 140 has an inlet 141 and an outlet 142, and the flow area of the channel 140 decreases and increases in a direction from the inlet 141 to the outlet 142. The channel 140 can provide flow guiding for air flow, wherein the flow area of the channel 140 is reduced and increased along the direction from the inlet 141 to the outlet 142 by design, so that the effect of downwind rectification can be achieved, the air flow noise in the fresh air duct 100 is reduced, a venturi effect can be formed, and the air guiding efficiency of the fresh air duct 100 is improved.

In one embodiment of the present invention, as shown in fig. 12 and 14, an intersection line of a plane in which a center line (or an axis) of the channel 140 is located and an inner wall surface of the channel 140 is formed as a molded line 150 of the channel 140, where the molded line 150 includes a first arc segment 151, a second arc segment 152, and a straight line segment 153, and the straight line segment 153 is located between the first arc segment 151 and the second arc segment 152. The molded line 150 provided with the channel 140 comprises a straight line segment 153 and a first arc segment 151 and a second arc segment 152 positioned at two ends of the straight line segment 153, so that the air flow flowing through the channel 140 forms an arc-straight line-arc flow form on the wall surface of the channel 140, the air flow straightening is facilitated, and the air flow noise in the fresh air duct 100 is reduced.

Further, as shown in fig. 14, the first arc segment 151 is closer to the inlet 141 than the second arc segment 152, and the second arc segment 152 is closer to the outlet 142 than the first arc segment 151, wherein the curvature of the first arc segment 151 is greater than the curvature of the second arc segment 152. In this way, the static pressure energy of the gas in the channel 140 near the inlet 141 is greater than the static pressure energy of the gas near the outlet 142, and the pressure difference is used to further promote the airflow, improve the wind guiding efficiency, and reduce the wind resistance noise.

In more detail, as shown in fig. 14, the first arc segment 151 is schematically indicated by S1, the second arc segment 152 is schematically indicated by S2, the straight line segment 153 is schematically indicated by S3, and the straight line segment 153 is between the first arc segment 151 and the second arc segment 152 and is connected with the first arc segment 151 and the second arc segment 152, wherein the first arc segment 151 is gradually far from the center line of the channel 140 from one end of the first arc segment 151 connected with the straight line segment 153 to the other end thereof, so that the channel 140 is in a horn shape at the position of the first arc segment 151, and the opening of the horn shape is gradually increased along the direction approaching the inlet 141; the second arc segment 152 is gradually far from the center line (or axis) of the channel 140 from one end thereof connected to the straight line segment 153 to the other end thereof, so that the portion of the channel 140 located at the second arc segment 152 is in a horn shape, and the opening of the horn shape is gradually increased along the direction approaching to the outlet 142. So that the entire passage 140 assumes a structure in which the flow area at the portion of the straight line portion 153 is minimized and the flow area of the passage is gradually increased toward both ends (i.e., both ends, i.e., the inlet 141 end and the outlet 142 end), that is, the flow area of the passage is decreased and then increased in the direction from the inlet 141 to the outlet 142. The effect of downwind rectification and the effect of high wind guiding efficiency can be further enhanced.

In one embodiment of the present invention, a first plug ring 161 and a second plug ring 162 are formed on the fresh air duct 100 for plug-in assembly of the fresh air duct 100, the first plug ring 161 defining the inlet 141 and the second plug ring 162 defining the outlet 142. Thus, when the fresh air duct 100 is assembled by the first plug ring 161 and the second plug ring 162, the connection transition of the fresh air duct 100 at the inlet 141 and the outlet 142 is more natural, the convenience of product assembly is ensured, and meanwhile, the problem of noise surge at the inlet and the outlet is avoided.

In more detail, as shown in fig. 16, the air conditioner 500 includes a wind scooper 550, the wind scooper 550 is located above the fresh air duct 100, and the lower end of the wind scooper 550 is in insert fit with the second insert ring 162 and is conducted, a fresh air outlet is provided on the rear frame 200 or the first front frame 510 of the air conditioner 500, and an opening 560 communicating with the fresh air outlet is provided on the wind scooper 550.

An air treatment module is arranged below the air conditioner 500, and a socket suitable for being assembled with the first plug-in ring 161 in a plug-in manner can be arranged on the air treatment module, so that the air treatment module is assembled with the first plug-in ring 161 in a plug-in manner.

Preferably, one axial end of the first plugging ring 161 is connected, the other axial end is in a free end structure, and the wall thickness of the first plugging ring 161 is gradually reduced from the connected end of the first plugging ring 161 to the free end of the first plugging ring 161, so that demolding of the first plugging ring 161 part can be facilitated, and the forming quality of the first plugging ring 161 can be improved.

Preferably, one axial end of the second plugging ring 162 is connected, the other axial end is in a free end structure, and the wall thickness of the second plugging ring 162 is gradually reduced from the connected end of the second plugging ring 162 to the free end of the second plugging ring 162, so that demolding of the second plugging ring 162 part can be facilitated, and forming quality of the second plugging ring 162 can be improved.

In one embodiment of the present invention, fresh air duct 100 is an injection molded part. The product cost can be reduced, the fresh air duct 100, the rear frame assembly and even the air conditioner 500 are also facilitated, and the fresh air duct 100 is arranged between the first space 210 and the second space 220, and the reinforcement 300 is utilized to form an empty protection for the fresh air duct 100, so that along with the improvement of the loading condition of the fresh air duct 100, the injection molding part is enough to meet the strength requirement for the fresh air duct 100, and the problem that the fresh air duct 100 is damaged by pressure is avoided.

In one embodiment of the invention, the rear frame 200 is an integrally formed part. Compared with the existing three-section combined structure formed by the upper shell component, the lower shell component and the air duct component, the assembly step of the rear frame 200 is omitted, so that the production process of the product is simplified, the production efficiency of the product is higher, and the product has the advantages of better appearance continuity and more attractive appearance. And this structure utilizes reinforcement 300 to support about this integrated into one piece's back frame 200 for back frame 200 bending resistance ability promotes, and back frame 200 is difficult to produce subsides, bending deformation, and product quality is better, and this structure is in the corresponding air treatment module of installation or temperature regulation module 540 in being located the upside in to first space 210 and second space 220, because back frame 200 obtains rigidity reinforcement through reinforcement 300, thereby need not to arrange the workman in addition and hold up fixed back frame 200, it is more convenient to assemble, also reduced the cost of labor.

In one embodiment of the present invention, as shown in fig. 2, the rear frame assembly further includes a grill 400, and the grill 400 is provided on the rear frame 200 and corresponds to the first space 210.

In more detail, in the present embodiment, the first space 210 is specifically configured to accommodate the temperature adjusting module 540, where, as those skilled in the art will understand, the temperature adjusting module 540 (also referred to as an indoor unit module) as an air conditioner may specifically include an evaporator, a fan, a water receiving disc, and the like, where, inside the formed air conditioner 500, the evaporator is disposed in the first space 210, the water receiving disc is disposed below the evaporator, the fan is disposed in the first space 210 and opposite to the evaporator, and the fan is operative to suck air from the room and discharge the sucked air flow back into the room after passing through the evaporator, so as to achieve indoor temperature adjustment. Through setting up grid 400 and first space 210 correspondence, can utilize grid 400 to prevent dust and protect temperature regulation module 540 in the first space 210, and can supply air conditioner 500 to cut wind and wind-guiding, wherein, through setting up grid 400 in back frame 200, can also play the reinforcing effect to back frame 200, promote the bulk strength of back frame 200.

As shown in fig. 2, the rear frame assembly further includes a grill 400, and the grill 400 is provided on the rear frame 200 and corresponds to the first space 210.

In one embodiment of the present invention, as shown in fig. 2 to 14, the rear frame assembly includes a fresh air duct 100 and a rear frame 200.

The fresh air duct 100 is an integrally formed injection molding part, the rear frame 200 is an integrally formed part, a first space 210 suitable for accommodating the temperature adjusting module 540 and a second space 220 suitable for accommodating the air processing module are formed on the inner side of the rear frame 200, the first space 210 and the second space 220 are distributed up and down, the first space 210 is located on the upper side of the second space 220, the fresh air duct 100 is located between the first space 210 and the second space 220, a fresh air outlet is formed in a position, corresponding to the first space 210, of the rear frame 200, the fresh air duct 100 is communicated with the fresh air outlet, the fresh air duct 100 is configured for the air processing module to exhaust air to the fresh air outlet, and the fresh air outlet can be arranged on a front frame (such as the first front frame 510 or the second front frame 520).

The rear frame assembly further comprises a reinforcing member 300, the reinforcing member 300 corresponds to the first space 210, the second space 220 and the fresh air duct 100, the rear frame 200 is of a concave cavity structure with a concave middle part and two left and right sides 231 extending forwards, a frame opening 230 is defined between the two left and right sides 231 of the rear frame 200 at intervals, the reinforcing member 300 is respectively arranged on the two left and right sides 231 of the rear frame 200, the two reinforcing members 300 can basically ensure that the rear frame 200 is stable for supporting the rear frame 200 up and down, the bending resistance reinforcing effect of the rear frame 200 is better, and the temperature adjusting module 540 positioned in the first space 210 is fixed on the rear frame 200 and supported by the reinforcing member 300.

More specifically, the rear frame 200 is provided with a plurality of connecting columns 260 integrally formed with the rear frame 200, the plurality of connecting columns 260 are provided with threaded holes 261, the reinforcing member 300 is provided with through holes 310, the threaded holes 261 correspond to the through holes 310 one by one, and the threaded fasteners penetrate through the through holes 310 and are in threaded connection with the threaded holes 261, so that the reinforcing member 300 is locked on the rear frame 200, the connection reliability of the rear frame 200 and the reinforcing member 300 is effectively ensured, and the stability of the product is better.

The rear frame 200 is provided with a tongue 270, and as shown in fig. 11, the reinforcement 300 is provided with a socket 320, and the tongue 270 is inserted into the socket 320. The reinforcement 300 and the rear frame 200 are conveniently and rapidly positioned and pre-fixed, and the assembly convenience of the product is improved.

The inner wall surface of the rear frame 200 is provided with a first lug 250A and a second lug 250B at a position between the first space 210 and the second space 220, the first lug 250A is located above the second lug 250B and is spaced up and down from the second lug 250B to define a chute 251, the fresh air duct 100 is provided with a first convex edge 130A and a second convex edge 130B, the first convex edge 130A is lapped on the first lug 250A, and the second convex edge 130B is lapped on the second lug 250B, so that the rear frame 200 supports the fresh air duct 100.

The fresh air duct 100 is formed with a first connection edge 110 and a second connection edge 120, and the first connection edge 110 and the second connection edge 120 are respectively fixed with the rear frame 200 and the stiffener 300 by screws.

The rear frame 200 is provided with a connecting lug 252 on the second lug 250B, a connecting hole 2521 is formed on the connecting lug 252, the first connecting edge 110 is formed at the rear end of the fresh air duct 100, when the fresh air duct 100 is installed in place in the sliding groove 251, the connecting lug 252 just corresponds to the first connecting edge 110, and the connecting lug 252 is fixed with the first connecting edge 110 by penetrating the connecting hole 2521 through a screw so as to lock the fresh air duct 100 and the rear frame 200.

Regarding the fresh air duct 100, specifically, the fresh air duct 100 has a channel for air flow to pass through, the fresh air duct 100 is formed with a first plug ring 161 and a second plug ring 162, the first plug ring 161 defines an inlet 141 of the channel and the inlet 141 is connected with the air treatment module, the second plug ring 162 defines an outlet 142 of the channel and the outlet 142 is communicated with the fresh air outlet, so that the connection transition of the fresh air duct 100 at the inlet 141 and the outlet 142 is more natural, the convenience of product assembly is ensured, and meanwhile, the problem of rapid noise increase of the inlet and the outlet is avoided.

The intersection line of the plane where the center line of the channel 140 is located and the inner wall surface of the channel 140 is formed into a molded line 150 of the channel 140, the molded line 150 of the channel 140 comprises a straight line segment 153 and a first arc segment 151 and a second arc segment 152 which are positioned at two ends of the straight line segment 153, so that the air flow flowing through the channel 140 forms an arc-straight line-arc flow form on the wall surface of the channel 140, the air flow straightening is facilitated, the air flow noise in the fresh air duct 100 is reduced, the first arc segment 151 is closer to the inlet 141, the second arc segment 152 is closer to the outlet 142, and the curvature of the first arc segment 151 is larger than that of the second arc segment 152.

An embodiment of the second aspect of the present invention provides an air conditioner 500, including the rear frame assembly of any of the above embodiments; a temperature adjusting module 540 disposed in the first space 210 of the rear frame assembly; an air treatment module is provided in the second space 220 of the rear frame assembly.

The air conditioner 500 according to the second embodiment of the present invention has all the above advantages by providing the rear frame assembly in any of the above embodiments, and will not be described herein.

In more detail, as shown in fig. 15 and 16, the temperature adjusting module 540 (also referred to as an indoor unit module) may include an evaporator 541, a fan 542, a water pan, and other components, the evaporator is disposed in the first space 210, the water pan is disposed below the evaporator, the fan is disposed in the first space 210 and opposite to the evaporator, the fan operates to suck air from the room, and the sucked air flow flows through the evaporator and then is discharged back into the room, so as to adjust the indoor temperature.

The air treatment module may specifically include a filter unit, a PM2.5 unit, etc. for purifying fresh air sucked from the outside and delivering the purified fresh air into the room through the fresh air duct 100. Of course, the air treatment module may further be provided with a humidifying unit for humidifying the fresh air sucked from the outside and sending the humidified fresh air into the room through the fresh air duct 100.

In the rear frame assembly, the first space 210 is located above the second space 220, the first space 210 accommodates the temperature adjusting module 540, and the second space 220 accommodates the air processing module. The fresh air duct 100 is disposed between the temperature adjustment module 540 and the air treatment module.

Further, as shown in fig. 17, the air conditioner 500 further includes a first front frame 510, a second front frame 520, and a decorative plate 530, where the first front frame 510, the second front frame 520, and the decorative plate 530 are located at the front side of the rear frame 200 and are connected to the rear frame 200, such that the first front frame 510, the second front frame 520, the decorative plate 530, and the rear frame 200 enclose the housing of the air conditioner 500, the first front frame 510 is located above the second front frame 520 and corresponds to the first space 210, and the decorative plate 530 is located between the first front frame 510 and the second front frame 520 and corresponds to the fresh air duct 100.

According to the rear frame assembly and the air conditioner provided by the invention, the integrally formed fresh air duct is arranged on the inner side of the rear frame and is used for exhausting air by the air treatment module, compared with a multi-section fresh air duct structure formed by splicing in the prior art, the integrally formed fresh air duct structure is simpler, a complicated splicing process is not needed, the assembly process of a product is improved, the assembly efficiency of the product is improved, the assembly adaptation precision of the fresh air duct and the rear frame is ensured, the suitability of the fresh air duct and the rear frame is prevented from being interfered by the splicing precision of the fresh air duct, the fresh air duct is assembled on the inner side of the rear frame more accurately, the air guiding precision of the fresh air duct is improved, meanwhile, the inner surface of the integrally formed fresh air duct is basically free from seams, the wind resistance and wind resistance noise in the fresh air duct are smaller, the air guiding performance of the fresh air duct is improved, and the problem of air leakage at the seam position is avoided.

In the present invention, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A rear frame assembly for an air conditioner, the rear frame assembly comprising:

fresh air duct;

the back frame is arranged on the inner side of the back frame, a first space suitable for accommodating the temperature adjusting module and a second space suitable for accommodating the air processing module are formed on the inner side of the back frame, the fresh air channel is located between the first space and the second space, and the fresh air channel is configured to exhaust air from the air processing module;

the rear frame is provided with lugs, the fresh air duct is provided with a convex edge, and the convex edge is lapped on the lugs, so that the rear frame supports the fresh air duct;

the fresh air duct is an integrally formed part;

the fresh air duct is provided with a channel for air flow to pass through, the channel is provided with an inlet and an outlet, and the flow area of the channel is firstly reduced and then increased along the direction from the inlet to the outlet;

the novel air duct is characterized in that a first plug ring and a second plug ring for plug-in assembly of the novel air duct are formed on the novel air duct, the first plug ring defines the inlet, and the second plug ring defines the outlet.

2. The rear frame assembly of claim 1, wherein the frame is configured to include,

the first space and the second space are distributed up and down;

the back frame assembly further comprises a reinforcing piece, the reinforcing piece corresponds to the first space, the second space and the fresh air duct, and the part of the reinforcing piece corresponding to the first space and the part of the reinforcing piece corresponding to the second space are respectively connected with the back frame.

3. The rear frame assembly of claim 2, wherein,

the rear frame is provided with a frame opening, and the side edges of the two opposite sides of the frame opening are respectively provided with the reinforcing piece.

4. A rear frame assembly as claimed in claim 2 or 3, wherein,

the fresh air duct is provided with a first connecting edge and a second connecting edge, the first connecting edge is connected with the rear frame, and the second connecting edge is connected with the reinforcing piece.

5. The rear frame assembly as set forth in any one of claims 1 to 3,

the intersection line of the plane where the central line of the channel is located and the inner wall surface of the channel forms a molded line of the channel, the molded line comprises a first arc line segment, a second arc line segment and a straight line segment, and the straight line segment is located between the first arc line segment and the second arc line segment.

6. The rear frame assembly of claim 5, wherein,

the first arc segment is closer to the inlet than the second arc segment is, and the second arc segment is closer to the outlet than the first arc segment, wherein the curvature of the first arc segment is greater than the curvature of the second arc segment.

7. The rear frame assembly as set forth in any one of claims 1 to 3,

the fresh air duct is an injection molding piece.

8. The rear frame assembly as set forth in any one of claims 1 to 3,

the rear frame is an integrally formed part.

9. An air conditioner, comprising:

the rear frame assembly of any one of claims 1 to 8;

a temperature adjusting module provided in the first space of the rear frame assembly;

and an air treatment module provided in the second space of the rear frame assembly.