Air conditioner indoor unit and air conditioner

Abstract

The application provides an air conditioner indoor unit and an air conditioner. The air conditioner indoor unit comprises a shell, a fresh air device and a fresh air pipe assembly. The shell comprises a bottom plate, and a pipe running groove is arranged on the back surface of the bottom plate. The fresh air device is arranged in the shell. One end of the fresh air pipe assembly is connected with the fresh air device, and the other end of the fresh air pipe assembly extends out of the shell. The fresh air pipe comprises a first pipe section, the pipe running groove is used for accommodating the first pipe section, and at least part of the outer wall of the first pipe section is arranged in close contact with the groove wall of the pipe running groove. The air conditioner indoor unit can solve the technical problems that the installation gap of the air conditioner indoor unit is too large or the air conditioner indoor unit cannot be installed in the prior art.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to an indoor air conditioning unit and an air conditioner. Background Technology

[0002] In related technologies, air conditioner indoor units with fresh air functions employ a method where the fresh air duct is installed inside the unit casing. The fresh air duct must have a certain diameter to ensure the fresh air volume meets usage requirements. However, due to the limited space inside the casing, if the diameter of the fresh air duct is too large, it will extend beyond the casing, causing the duct to touch the wall when the indoor unit is installed. This can lead to installation problems such as excessive installation gaps or inability to wall mount the unit. Summary of the Invention

[0003] The main objective of this invention is to provide an air conditioner indoor unit that addresses the technical problem in the prior art where air conditioner indoor units are prone to having excessively large installation gaps or being unable to be installed.

[0004] To achieve the above objectives, the present invention provides an indoor air conditioning unit, comprising:

[0005] The housing includes a chassis, and the back of the chassis is provided with a pipe routing groove;

[0006] A fresh air unit, wherein the fresh air unit is disposed within the housing; and

[0007] The fresh air duct assembly has one end connected to the fresh air device and the other end extending out of the housing; the fresh air duct assembly includes a first pipe section, and the duct groove is used to accommodate the first pipe section, with at least a portion of the outer wall of the first pipe section fitting against the groove wall of the duct groove.

[0008] In one embodiment, the pipe channel has an arc-shaped channel wall, and the first pipe section includes an arc-shaped portion, which is fitted to the arc-shaped channel wall.

[0009] In one embodiment, the arc-shaped portion includes an arc-shaped plate corresponding to the arc-shaped groove wall and a wrapping layer disposed on the outer surface of the arc-shaped plate, the wrapping layer being fitted to the arc-shaped groove wall.

[0010] In one embodiment, the first pipe segment further includes a side plate opposite to the arc-shaped plate, the side plate being disposed near the opening of the pipe channel and extending along the height direction of the chassis.

[0011] In one embodiment, the first pipe segment further includes a top plate connecting the arc-shaped plate and the side plate, the top plate being detachably connected to the chassis.

[0012] In one embodiment, the arc-shaped groove wall is formed on the upper groove wall of the pipe running groove.

[0013] In one embodiment, the first pipe segment includes a pipe body and an insulation layer wrapped around the pipe body, the insulation layer being fitted into the wall of the pipe channel.

[0014] In one embodiment, the tube body is made of a rigid material.

[0015] In one embodiment, the first pipe segment is detachably connected to the chassis.

[0016] In one embodiment, the first pipe section is provided with a hook, and the back of the chassis is provided with a hanging plate, and the hook is hooked onto the hanging plate.

[0017] In one embodiment, the first pipe section is provided with a locking part, and the back of the chassis is provided with a mating part, wherein the locking part and the mating part are engaged and connected.

[0018] In one embodiment, the engaging portion includes engaging members disposed on both sides of the hook, and the mating portion includes engaging posts disposed on both sides of the hanging plate, each engaging post having an engaging groove for the engaging member to be inserted into.

[0019] In one embodiment, the snap-fit ​​component includes:

[0020] An elastic arm, wherein the elastic arm is disposed on the first pipe section and located on one side of the hanging plate; and

[0021] A limiting post is provided on the side of the elastic arm away from the hanging plate, and the limiting post is engaged in the locking groove.

[0022] In one embodiment, the fresh air duct assembly further includes a second duct segment, one end of which is connected to the first duct segment, and the other end of which extends through the wall to the outside.

[0023] In one embodiment, a first connector is provided at one end of the first pipe segment near the second pipe segment, and the first connector is inserted into the second pipe segment.

[0024] In one embodiment, the first connector has a communicating cavity with a circular or elliptical cross-section; the second pipe segment is a circular or elliptical pipe.

[0025] In one embodiment, a second connector is provided at one end of the first pipe section near the fresh air device, the second connector is provided with a plug-in portion, and a connecting portion is provided at the air inlet of the fresh air device, the plug-in portion and the connecting portion are plugged in and engaged.

[0026] In one embodiment, the first pipe segment is located above the pipe routing channel.

[0027] In one embodiment, the first pipe segment is polygonal in cross-section perpendicular to its length direction.

[0028] The present invention also proposes an air conditioner, the air conditioner including the indoor unit as described above, the indoor unit including a casing, a fresh air device and a fresh air duct assembly, the casing including a chassis, the back of the chassis having a duct groove; the fresh air device being disposed inside the casing; one end of the fresh air duct assembly being connected to the fresh air device, and the other end extending outside the casing; the fresh air duct assembly including a first pipe section, the duct groove being used to accommodate the first pipe section, at least a portion of the outer wall of the first pipe section being fitted against the groove wall of the duct groove.

[0029] The air conditioner indoor unit of the present invention includes a casing, a fresh air device, and a fresh air duct assembly. The casing includes a chassis, and a duct groove is provided on the back of the chassis. The fresh air duct assembly includes a first pipe section. The duct groove is used to accommodate the first pipe section. At least a portion of the outer wall of the first pipe section is fitted to the groove wall of the duct groove, so that the shape of the outer wall of the first pipe section can be adapted to the shape of the groove wall. The arrangement structure of the first pipe section in the duct groove is compact, which improves the space utilization rate of the fresh air duct assembly in the duct groove and ensures that the fresh air duct assembly can meet the fresh air volume requirements in the duct groove. This avoids the technical problem that the fresh air duct assembly exceeds the casing to meet the fresh air volume requirements, resulting in excessive installation gaps or inability to install the air conditioner indoor unit when it is installed on the wall. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of an embodiment of the indoor unit of the air conditioner of the present invention;

[0032] Figure 2 for Figure 1 A partial structural diagram;

[0033] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0034] Figure 4 for Figure 2 A cross-sectional schematic diagram of the structure in the diagram;

[0035] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0036] Figure 6 for Figure 2 Schematic diagram of the middle section;

[0037] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0038] Figure 8 for Figure 6 A cross-sectional view of one of the locations;

[0039] Figure 9 for Figure 6 A cross-sectional view of another location in the middle;

[0040] Figure 10 for Figure 4 Cross-sectional view of the mid-chassis;

[0041] Figure 11 for Figure 3 Some detailed images;

[0042] Figure 12 for Figure 2 A cross-sectional schematic diagram of part of the structure;

[0043] Figure 13 for Figure 12 Enlarged view of point D in the middle;

[0044] Figure 14 for Figure 3 Enlarged view of some of the structures in the image;

[0045] Figure 15 for Figure 2 A partial structural diagram;

[0046] Figure 16 for Figure 15 Enlarged view at point E in the middle;

[0047] Figure 17 for Figure 15 A partial structural diagram;

[0048] Figure 18 for Figure 17 Enlarged view at point F;

[0049] Figure 19 for Figure 18 An internal detail view of the structure from one perspective;

[0050] Figure 20 for Figure 18 An internal detail view of the structure from another perspective. (Illustration of icon numbers follows.)

[0051]

[0052]

[0053] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0054] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0055] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0056] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0057] This invention provides an indoor air conditioner unit and an air conditioner including the indoor air conditioner unit, which can solve the technical problem in the prior art that the indoor air conditioner unit is prone to having excessive installation gaps or being unable to be installed.

[0058] Please see Figures 1 to 5 In one embodiment of the air conditioner indoor unit of the present invention, the air conditioner indoor unit includes a housing 100, a fresh air device 200, and a fresh air duct assembly 300. The housing 100 includes a chassis 110, and a duct groove 111 is provided on the back of the chassis 110. The fresh air device 200 is disposed inside the housing 100. One end of the fresh air duct assembly 300 is connected to the fresh air device 200, and the other end extends out of the housing 100. The fresh air duct assembly 300 includes a first pipe section 310, and the duct groove 111 is used to accommodate the first pipe section 310. At least a portion of the outer wall of the first pipe section 310 is fitted against the groove wall of the duct groove 111.

[0059] It is understood that the indoor unit of an air conditioner can be a wall-mounted air conditioner indoor unit, a floor-standing air conditioner indoor unit, a portable air conditioner indoor unit, etc. The following content will be described in detail using a wall-mounted air conditioner indoor unit as an example.

[0060] The casing 100 also includes a front frame with an air inlet at the top and an air duct formed within the frame. The indoor unit also includes a heat exchange device 400, comprising a heat exchanger 410 and a refrigerant pipe 420. The heat exchanger 410 is located within the air duct, and the front frame has an air outlet communicating with the air duct, allowing the indoor unit to blow air downwards and to the front of the front frame. One end of the refrigerant pipe 420 connects to the heat exchanger 410 within the front frame, and the other end extends outside the casing 100 and connects to the outdoor unit, thus forming a circulating refrigerant flow path between the indoor and outdoor units. The refrigerant pipe 420 may include a refrigerant inlet pipe and a refrigerant outlet pipe, which can be wrapped together with an insulation layer for easy installation.

[0061] The fresh air unit 200 includes a fresh air fan, the air inlet of which is connected to one end of a fresh air duct assembly 300. The fresh air duct assembly 300 extends out of the casing 100 and can communicate with the outside. The fresh air fan can introduce fresh air from the outside into the indoor environment through the fresh air duct assembly 300, thereby enabling the indoor unit of the air conditioner to have the function of introducing fresh air.

[0062] The chassis 110 has a receiving cavity, in which the heat exchanger 410 is located. A pipe channel 111 is located on the back of the chassis 110. The pipe channel 111 is used to accommodate the first pipe section 310, and can also accommodate the refrigerant pipe 420. By providing the pipe channel 111, the first pipe section 310 of the fresh air duct assembly 300 can be arranged at a preset position within the pipe channel 111. This limits the arrangement of the first pipe section 310, allowing the fresh air duct assembly 300 to be smoothly arranged within the casing 100, which helps improve the space utilization rate inside the casing 100.

[0063] Furthermore, at least a portion of the outer wall of the first pipe segment 310 is fitted to the wall of the duct groove 111, meaning that a portion of the outer wall of the first pipe segment 310 can be adapted to the wall of the duct groove 111, thereby allowing the first pipe segment 310 to fully utilize the internal space of the duct groove 111. The first pipe segment 310 can be of an irregular shape. The fitted design of the irregularly shaped first pipe segment 310 with the duct groove 111 allows the first pipe segment 310 to fully utilize the internal space of the duct groove 111, ensuring that the internal space of the first pipe segment 310 can meet the fresh air volume requirements. This allows the fresh air duct assembly 300 to meet the fresh air volume requirements even with limited internal space in the housing 100, avoiding the situation where the diameter of the fresh air duct assembly 300 is too large and exceeds the housing 100. This solves the technical problem of excessive installation gaps or inability to install when the indoor unit of the air conditioner is mounted on the wall.

[0064] The air conditioner indoor unit of the present invention includes a housing 100, a fresh air device 200, and a fresh air duct assembly 300. The housing 100 includes a chassis 110, and a duct groove 111 is provided on the back of the chassis 110. The fresh air duct assembly 300 includes a first pipe section 310. The duct groove 111 is used to accommodate the first pipe section 310. At least a portion of the outer wall of the first pipe section 310 is fitted to the groove wall of the duct groove 111, so that the shape of the outer wall of the first pipe section 310 can be adapted to the shape of the groove wall of the duct groove 111. The arrangement structure of the first pipe section 310 in the duct groove 111 is compact, which improves the space utilization rate of the fresh air duct assembly 300 in the duct groove 111 and ensures that the fresh air duct assembly 300 can meet the fresh air volume requirements in the duct groove 111. This avoids the technical problem that the fresh air duct assembly 300 exceeds the housing 100 to meet the fresh air volume requirements, resulting in excessive installation gaps or inability to install the air conditioner indoor unit when it is installed on the wall.

[0065] Please see Figure 4 , Figure 5 , Figure 12 and Figure 13In one embodiment, the duct channel 111 is provided with an arc-shaped channel wall 1111, and the first pipe segment 310 includes an arc-shaped portion, which is fitted to the arc-shaped channel wall 1111. It can be understood that the arc-shaped portion and the arc-shaped channel wall 1111 are fitted together, meaning the arc-shaped portion and the arc-shaped channel wall 1111 are contour-following, with the curvature of the arc-shaped portion matching the curvature of the arc-shaped channel wall 1111, so that the first pipe segment 310 can fit tightly to the arc-shaped channel wall 1111. The contour-following arrangement of the arc-shaped portion and the arc-shaped channel wall 1111 in this solution allows the first pipe segment 310 to fully utilize the internal space of the duct channel 111. Even with limited internal space in the duct channel 111, the fresh air duct assembly 300 can still meet the fresh air volume requirements. Furthermore, the compact arrangement of the first pipe segment 310 within the duct channel 111 improves the space utilization rate inside the duct channel 111 and the internal space utilization rate inside the housing 100.

[0066] It is understood that the arc-shaped portion may include an arc-shaped plate, which can be fitted to the arc-shaped groove wall 1111. Of course, the arc-shaped portion may also include a wrapping layer on the outer surface of the arc-shaped plate, which is used to insulate the arc-shaped plate. In one embodiment, the arc-shaped portion includes an arc-shaped plate 311 corresponding to the arc-shaped groove wall and a wrapping layer on the outer surface of the arc-shaped plate, the wrapping layer being fitted to the arc-shaped groove wall 1111. The wrapping layer is located on the outer surface of the arc-shaped plate, and the wrapping layer is arc-shaped, allowing it to fit tightly to the arc-shaped groove wall 1111. This arrangement makes the arrangement of the first pipe segment 310 within the pipe groove 111 compact, and the first pipe segment 310 fully utilizes the internal space of the pipe groove 111, thus improving the space utilization rate of the first pipe segment 310 within the pipe groove 111.

[0067] The wrapping layer not only insulates the curved plate of the first pipe section 310, but also prevents the curved plate of the first pipe section 310 from impacting the curved groove wall 1111 within the pipe routing groove 111, thus improving the stability of the air conditioner indoor unit. Furthermore, the wrapping layer, sandwiched between the curved plate 311 and the curved groove wall 1111, allows for full utilization of the internal space of the pipe routing groove 111, thereby improving the space utilization rate inside the air conditioner indoor unit.

[0068] Please see Figure 4 , Figure 5 and Figure 8 In one embodiment, the first pipe section 310 further includes a side plate 312 opposite to the arc plate 311. The side plate 312 is disposed near the opening of the pipe channel 111 and extends along the height direction of the chassis 110.

[0069] It is understood that the casing 100 also includes a wall mounting plate for wall mounting of the indoor air conditioning unit. The wall mounting plate and the wall both extend along the height direction. The wall mounting plate is located on the back of the chassis 110, and the slot of the pipe channel 111 faces the wall mounting plate. The first pipe section 310 of this application also includes a side plate 312 opposite to the arc plate 311. The side plate 312 is located near the slot of the pipe channel 111 and extends along the height direction of the chassis 110, so that when the first pipe section 310 is installed in the indoor air conditioning unit, it will not exceed the casing 100. That is, the side plate 312 of the first pipe section 310 will not exceed the wall mounting plate. This avoids the phenomenon that the fresh air duct assembly 300 hits the wall when the indoor air conditioning unit is installed because the first pipe section 310 exceeds the casing 100. This solves the technical problem that the installation gap is too large or the indoor air conditioning unit cannot be installed when it is installed on the wall.

[0070] In one embodiment, the first pipe segment 310 further includes a top plate 313 connecting the arc-shaped plate 311 and the side plate 312, and the top plate 313 is detachably connected to the chassis 110. It is understood that there can be various ways in which the top plate 313 and the chassis 110 are detachably connected, such as, but not limited to, a snap-fit ​​connection or a bolt connection; no specific limitation is made here. By setting the top plate 313 to be detachably connected to the chassis 110, the installation and fixing method of the first pipe segment 310 is simplified, which helps to improve the assembly and disassembly efficiency of the first pipe segment 310.

[0071] In addition, the top plate 313 connects the arc plate 311 and the side plate 312. The top plate 313 will not interfere with the arc groove of the pipe channel 111, and the top plate 313 will not extend beyond the housing 100. This makes the structural design of the first pipe section 310 reasonable, thereby optimizing the structure of the first pipe section 310, which in turn optimizes the structure of the fresh air duct assembly 300.

[0072] In one embodiment, the arc-shaped groove wall 1111 is formed on the upper groove wall of the duct groove 111. It is understood that the arc-shaped plate 311 of the first pipe segment 310 is correspondingly disposed with the arc-shaped groove wall 1111 of the duct groove 111, and the arc-shaped groove wall 1111 is formed on the upper groove wall of the duct groove 111. That is, the arc-shaped plate 311 of the first pipe segment 310 is located on the upper side of the duct groove 111, and the first pipe segment 310 can be arranged downwards from the upper side of the duct groove 111, ensuring that the first pipe segment 310 has sufficient internal space to meet the fresh air volume requirements.

[0073] Furthermore, the arc-shaped groove wall 1111 is located on the upper groove wall of the pipe channel 111 and has a relatively long length. Correspondingly, the arc-shaped plate 311 of the first pipe section 310 is also relatively long. This allows the first pipe section 310 to make full use of the internal space of the pipe channel 111 to ensure that it has enough internal space to meet the fresh air volume requirements, thus improving the space utilization rate inside the pipe channel 111.

[0074] In addition, the duct trough 111 can accommodate not only the first pipe section 310 of the fresh air duct assembly 300, but also the refrigerant pipe 420. By placing the arc plate 311 of the first pipe section 310 on the upper side of the duct trough 111, the refrigerant pipe 420 can be placed on the lower side of the duct trough 111. Both the refrigerant pipe 420 and the first pipe section 310 can be accommodated in the duct trough 111. This allows the refrigerant pipe 420 and the fresh air duct assembly 300 to be smoothly arranged in the casing 100, which is beneficial to improving the space utilization rate inside the air conditioning indoor unit.

[0075] In one embodiment, the first pipe segment 310 includes a pipe body and an insulation layer wrapped around the pipe body, the insulation layer being fitted against the wall of the pipe channel 111. It is understood that the insulation layer not only insulates the pipe body but also prevents the pipe body from impacting the arc-shaped channel wall 1111 within the pipe channel 111, thus improving the stability of the air conditioner indoor unit. Furthermore, the pipe body may include an arc-shaped plate 311, i.e., the arc-shaped plate 311 is part of the pipe body; the pipe body may also include side plates 312 and / or a top plate 313, the specific arrangement of which is described in the foregoing embodiment and will not be repeated here. In addition, the insulation layer is sandwiched between the arc-shaped plate 311 and the arc-shaped channel wall 1111 of the pipe body, allowing full utilization of the internal space of the pipe channel 111, thereby improving the space utilization rate inside the air conditioner indoor unit.

[0076] In one embodiment, the duct body is made of a rigid material. This design gives the first duct segment 310 high strength, making it less prone to deformation when housed within the duct groove 111, thereby ensuring the stability of the fresh air duct assembly 300 in transmitting fresh air.

[0077] Furthermore, the rigid material pipe body facilitates detachable connection with the chassis 110, meaning the first pipe section 310 is easily detachable from the chassis 110. For example, the rigid material first pipe section 310 can be easily snapped into place with the chassis 110, allowing it to be stably installed on the chassis 110. When the rigid material first pipe section 310 is installed in the pipe routing groove 111, it does not need to be bundled together with pipes such as the refrigerant pipe 420, which simplifies the installation process and improves the consistency of after-sales installation of the air conditioning indoor unit.

[0078] In one embodiment, the first pipe segment 310 is detachably connected to the chassis 110. It is understood that there can be various ways to detachably connect the first pipe segment 310 to the chassis 110, such as, but not limited to, detachable connection via a snap-fit ​​structure or a bolted structure; no specific limitation is made here. Detachably connecting the first pipe segment 310 to the chassis 110 simplifies the installation and fixing of the first pipe segment 310, thereby improving the efficiency of its assembly and disassembly.

[0079] Please see Figure 7 , Figure 8 , Figure 11 and Figure 13 In one embodiment, the first pipe section 310 is provided with a hook 314, and the back of the chassis 110 is provided with a hanging plate 112, with the hook 314 hooked onto the hanging plate 112. It is understood that by setting the structure of the hook 314 and the hanging plate 112, the installation and disassembly of the first pipe section 310 are relatively simple, and the structure of the first pipe section 310 and the chassis 110 is also simplified, which helps to reduce the production cost of the first pipe section 310 and the chassis 110.

[0080] Please see Figures 12 to 14 In one embodiment, the first pipe segment 310 is provided with a locking part 315, and the back of the chassis 110 is provided with a mating part 113. The locking part 315 and the mating part 113 are engaged and connected. It can be understood that by setting the locking part 315 and the mating part 113 to engage and connect, the first pipe segment 310 can be installed more stably on the chassis 110, thereby improving the stability of the first pipe segment 310 installed on the chassis 110.

[0081] Please see Figure 6 , Figure 10 , Figure 11 and Figure 14 In one embodiment, the engaging portion 315 includes engaging members 3151 disposed on both sides of the hook 314, and the mating portion 113 includes engaging posts 1131 disposed on both sides of the mounting plate 112. Each engaging post 1131 is provided with an engaging groove 1132 for the engaging member 3151 to be inserted. It is understood that the engaging member 3151 engages with the engaging groove 1132, so that both sides of the hook 314 are limited by the engaging member 3151. This ensures that the hook 314 on the first pipe section 310 is not easily detached from the mounting plate 112 of the chassis 110, thereby improving the stability of the first pipe section 310 installed on the chassis 110.

[0082] Please see Figure 7 , Figure 11 and Figure 14In one embodiment, the snap-fit ​​member 3151 includes an elastic arm 3152 and a limiting post 3153. The elastic arm 3152 is disposed on the first pipe section 310 and located on one side of the hanging plate 112. The limiting post 3153 is disposed on the side of the elastic arm 3152 away from the hanging plate 112 and is snapped into the snap-fit ​​groove 1132.

[0083] Understandably, the elastic arm 3152 is elastic, and the limiting post 3153 is located on the side of the elastic arm 3152 away from the hanging plate 112. The limiting post 3153 is engaged in the locking groove 1132, and the opening of the locking groove 1132 is opened towards the hanging plate 112. The elastic arm 3152 has elastic potential energy to drive the limiting post 3153 to move towards the locking groove 1132. In this way, the limiting post 3153 can be stably engaged in the locking groove 1132 without the action of external force, thereby improving the stability of the limiting post 3153 engaged in the locking groove 1132.

[0084] Furthermore, when it is necessary to disassemble and separate the limiting post 3153 from the locking groove 1132, only a force needs to be applied to the elastic arm 3152 in the direction of the hanging plate 112 to make the limiting post 3153 disengage from the locking groove 1132. This makes the disassembly and separation of the limiting post 3153 from the locking groove 1132 simple and helps to improve the disassembly efficiency of the first pipe section 310.

[0085] Please see Figure 10 , Figure 11 and Figure 14 In one embodiment, the slot 1132 has an opening 1133 communicating with it on the side away from the chassis 110. The limiting post 3153 is inserted into the slot 1132, and part of the limiting post 3153 is exposed through the opening 1133. It can be understood that by setting the opening 1133, the limiting post 3153 can be pre-installed and pre-removed. When the first pipe section 310 is installed on the chassis 110, the hook 314 is first aligned with the hanging plate 112, and then the limiting post 3153 is aligned with the opening 1133. A force is applied to the elastic arm 3152 in the direction of the hanging plate 112 so that the limiting post 3153 can slide into the slot 1132 along the opening 1133, and the hook 314 can also hook onto the hanging plate 112. In this way, the installation of the first pipe section 310 is completed. The disassembly process of the first pipe section 310 is the reverse of the above process, and will not be described in detail here. It can be seen that by setting an opening 1133 at the groove of the snap-fit ​​groove 1132, the installation and disassembly of the first pipe section 310 are more convenient, thereby improving the efficiency of the installation and disassembly of the first pipe section 310.

[0086] In one embodiment, the end of the limiting post 3153 away from the elastic arm 3152 is provided with a guide notch facing the first pipe section 310. It can be understood that when the limiting post 3153 is inserted into the snap-fit ​​groove 1132 along the opening 1133, the guide notch is used to guide the limiting post 3153 so that the limiting post 3153 can be smoothly inserted into the snap-fit ​​groove 1132, which helps to improve the installation efficiency of the limiting post 3153.

[0087] Please see Figure 11 and Figure 14 In one embodiment, the locking post 1131 is provided with a guide slope 1134 along the edge of the opening 1133. It is understood that when the limiting post 3153 is inserted into the locking groove 1132 along the opening 1133, the guide slope 1134 can guide the limiting post 3153, so that the limiting post 3153 can still be inserted into the locking groove 1132 even with a reduced force applied to the elastic arm 3152. That is, by providing the guide slope 1134, it is beneficial to save effort when installing the limiting post 3153.

[0088] Please see Figure 1 , Figure 2 and Figure 6 In one embodiment, the fresh air duct assembly 300 further includes a second duct segment 320, one end of which is connected to the first duct segment 310, and the other end extends through the wall to the outside. It is understood that the second duct segment 320 can be partially located inside the housing 100, or it can be entirely located outside the housing 100, requiring only that the second duct segment 320 is connected to the first duct segment 310. The fresh air fan of the fresh air device 200 can introduce outdoor fresh air into the room through the second duct segment 320 and the first duct segment 310, thereby enabling the indoor unit of the air conditioner to have the function of introducing fresh air.

[0089] Please see Figure 6 , Figure 15 and Figure 17 In one embodiment, the first pipe segment 310 is provided with a first connector 316 at one end near the second pipe segment 320, and the first connector 316 is inserted into the second pipe segment 320. It can be understood that by setting the first connector 316 to be inserted into the second pipe segment 320, the first pipe segment 310 can be quickly assembled with the second pipe segment 320, which helps to improve the assembly efficiency of the fresh air duct assembly 300.

[0090] Please see Figure 6 , Figure 9 and Figure 17In one embodiment, the first connector 316 has a communicating cavity 3161, the cross-section of which is circular or elliptical; the second pipe segment 320 is a circular or elliptical pipe. It is understood that the first connector 316 can be inserted into the second pipe segment 320, or vice versa; the specific arrangement is not limited here. When the cross-section of the communicating cavity 3161 of the first connector 316 is circular, the second pipe segment 320 is a circular or elliptical pipe; or, when the cross-section of the communicating cavity 3161 of the first connector 316 is elliptical, the second pipe segment 320 is a circular or elliptical pipe.

[0091] Specifically, in this embodiment, the cross-section of the connecting cavity 3161 of the first connector 316 is elliptical, and the height dimension of the connecting cavity 3161 is greater than the width dimension. With this configuration, under the condition that the cross-sectional area of ​​the connecting cavity 3161 is the same, the height of the elliptical cross-section is greater than the height of the circular cross-section. That is, the cross-section of the connecting cavity 3161 of the first connector 316 in this solution is elliptical. Compared with irregular cross-sections, the first connector 316 is easier to connect to the second pipe segment 320, and it also helps the first connector 316 to fully utilize the internal space of the duct groove 111, ensuring the fresh air volume of the fresh air duct assembly 300. At the same time, the first connector 316 is located within the duct groove 111 and does not extend beyond the opening of the duct groove 111, thus preventing the fresh air duct assembly 300 from extending beyond the casing 100, improving the reliability of the air conditioning indoor unit.

[0092] In one embodiment, the second pipe segment 320 is a circular flexible tube, and the cross-section of the communicating cavity 3161 of the first connector 316 is elliptical. The second pipe segment 320 is inserted into the first connector 316, that is, the circular flexible tube is inserted into the first connector 316 with an elliptical cross-section. This arrangement allows the second pipe segment 320 to be quickly assembled with the first connector 316 of the first pipe segment 310, which helps to improve the assembly efficiency of the fresh air duct assembly 300.

[0093] In the above embodiment, the first connector 316 and the second pipe segment 320 are fixed together by wrapping with adhesive tape. This arrangement improves the stability of the connection between the second pipe segment 320 and the first pipe segment 310, thereby improving the stability of the air-conditioned room.

[0094] Please see Figures 15 to 18In one embodiment, a second connector 317 is provided at one end of the first pipe segment 310 near the fresh air device 200. The second connector 317 has a plug-in portion 3171, and the air inlet of the fresh air device 200 has a connecting portion 210. The plug-in portion 3171 and the connecting portion 210 are plugged into each other. It can be understood that by providing a plug-in portion 3171 on the second connector 317 and a connecting portion 210 on the fresh air device 200, and by providing a plug-in portion 3171 and a connecting portion 210, the disassembly and assembly of the first pipe segment 310 and the fresh air device 200 are greatly facilitated. The first pipe segment 310 can be installed without the need for other tools, which helps to improve work efficiency.

[0095] Please see Figures 17 to 20 In one embodiment, the plug-in portion 3171 includes a hook 3172 disposed on the outer wall of the second connector 317, and a mounting plate 211 is provided on the connecting portion 210, with the hook 3172 hooked onto the mounting plate 211. It is understood that the connecting portion 210 is connected to the fresh air fan, and the mounting plate 211 is disposed on the outer wall of the connecting portion 210. When connecting the second connector 317 to the air inlet of the fresh air device 200, it is only necessary to align the hook 3172 with the mounting plate 211 and push the hook 3172 so that it hooks onto the mounting plate 211 to complete the installation of the second connector 317. This simplifies the installation process of the second connector 317 and improves installation efficiency. A gap is formed between the hook 3172 and the second connector 317. When it is necessary to separate the second connector 317 from the fresh air unit 200, it is only necessary to push the hook part of the hook 3172 to make the gap larger, so that the hook 3172 can be separated from the mounting plate 211. This greatly facilitates the disassembly work between the second connector 317 and the fresh air unit 200 and helps to improve work efficiency.

[0096] Please see Figures 18 to 20 In one embodiment, the insertion part 3171 further includes an insertion block 3173 disposed on the outer wall of the second connector 317, and the connecting part 210 is provided with a slot 212, the insertion block 3173 being inserted into the slot 212. It is understood that the slot 212 is disposed on the outer wall of the connecting part 210, and the insertion block 3173 is disposed on the outer wall of the second connector 317. The orientation of the slot 212 is the same as the orientation of the insertion block 3173. This arrangement facilitates the accurate alignment of the insertion block 3173 with the slot 212 for insertion. Furthermore, by setting the insertion block 3173 and the slot 212, the insertion block 3173 can guide the insertion direction of the second connector 317, allowing the hook 3172 to accurately hook onto the locking platform 211, avoiding incorrect hooking positions. This creates a foolproof structure between the insertion part 3171 and the connecting part 210, thereby improving the stability of the insertion and engagement between the insertion part 3171 and the connecting part 210.

[0097] In one embodiment, the plug-in portion 3171 further includes a plug-in ring 3174, which communicates with the second connector 317. The connecting portion 210 has an annular groove 213, and the plug-in ring 3174 is plugged into the annular groove 213.

[0098] It is understood that the annular groove 213 is located on the outside of the air inlet of the fresh air device 200, the card plate 211 and the slot 212 are located on the outer wall of the connecting part 210, that is, the annular groove 213 is formed between the air inlet of the fresh air device 200 and the card plate 211, and the insertion ring 3174 is inserted into the annular groove 213, that is, the insertion ring 3174 is clamped in the annular groove 213 of the mating part 113. This design allows the fresh air entering the air inlet of the fresh air device 200 from the second connector 317 to directly enter the air inlet of the fresh air device 200 along the inner wall of the second connector 317. The fresh air does not need to flow along the inner wall of the plug ring 3174. The plug ring 3174 and the annular groove 213 cooperate to form a leak-proof structure. The leak-proof structure ensures good sealing at the connection between the second connector 317 and the air inlet of the fresh air device 200, ensuring that all the fresh air entering from the second connector 317 can enter the air inlet of the fresh air device 200, thereby improving the reliability of the connection between the second connector 317 and the fresh air device 200.

[0099] In one embodiment, the insertion direction of the plug-in portion 3171 and the connecting portion 210 is the same as the hooking direction of the hook 314 on the hanging plate 112. This arrangement ensures that the assembly direction of the first pipe section 310 with the fresh air unit 200 is consistent with the assembly direction of the first pipe section 310 with the chassis 110. That is, when installing the first pipe section 310, only a force in one direction needs to be applied to the first pipe section 310 to connect and fix it to both the fresh air unit 200 and the chassis 110. This simplifies the installation of the first pipe section 310 and improves its installation efficiency.

[0100] Please see Figure 4 and Figure 12 In one embodiment, the first pipe segment 310 is located on the upper side of the pipe channel 111. This arrangement allows the lower side of the pipe channel 111 to accommodate the refrigerant pipe 420, meaning that both the refrigerant pipe 420 and the first pipe segment 310 can be accommodated within the pipe channel 111. This improves the smoothness of the arrangement of the refrigerant pipe 420 and the first pipe segment 310 within the housing 100.

[0101] In one embodiment, the first pipe segment 310 has a polygonal cross-section perpendicular to its length. It is understood that the polygonal cross-section of the first pipe segment 310 allows its outer wall to adapt not only to the shape of the wall of the pipe runner 111, but also to the shape of the wall mounting plate of the housing 100 and the refrigerant pipe 420. This enables the first pipe segment 310 to fully utilize the internal space of the pipe runner 111, thereby improving the space utilization rate of the first pipe segment 310 within the pipe runner 111.

[0102] Please see Figure 3 , Figure 6 and Figure 16 In one embodiment, the first pipe segment 310 is provided with a clearance 318 at the end near the air inlet of the fresh air device 200. The clearance 318 is used to avoid the refrigerant pipe 420. This arrangement allows the refrigerant pipe 420 to be placed within the clearance 318 of the first pipe segment 310, thus avoiding the problem of mutual interference when the refrigerant pipe 420 and the fresh air duct assembly 300 are arranged crosswise within the housing 100. This ensures that the refrigerant pipe 420 and the fresh air duct assembly 300 can be arranged smoothly within the housing 100, thereby ensuring the fresh air volume of the fresh air duct assembly 300 and the stability of refrigerant transmission by the refrigerant pipe 420, and thus improving the stability of the indoor unit of the air conditioner.

[0103] In one embodiment, the clearance position 318 is a clearance groove formed by a recess on the side of the first pipe segment 310 near the refrigerant pipe 420, moving away from the refrigerant pipe 420. It is understood that by setting the clearance position 318 as a clearance groove, when the refrigerant pipe 420 is arranged within the housing 100, the refrigerant pipe 420 can be quickly positioned within the clearance groove through its opening. This facilitates the rapid installation of the refrigerant pipe 420 and also the rapid installation of the first pipe segment 310.

[0104] Furthermore, the shape of the clearance groove corresponds to the shape of the outer contour of the refrigerant pipe 420, that is, the groove wall of the clearance groove is contoured to match the outer contour of the refrigerant pipe 420. In this embodiment, the outer contour of the refrigerant pipe 420 is arc-shaped, and the groove wall of the clearance groove is also arc-shaped. The curvature of the groove wall corresponds to the curvature of the outer wall of the refrigerant pipe 420, which allows the refrigerant pipe 420 and the first pipe section 310 to be closely arranged inside the housing, which is beneficial to improving the space utilization rate inside the air conditioner indoor unit.

[0105] In one embodiment, to improve the cleanliness of outdoor air introduced by the fresh air device 200, a purification component is installed in the fresh air device 200 and / or the fresh air duct assembly 300. The air entering the fresh air device 200 can be purified into relatively clean fresh air by the purification component, and then the clean fresh air can be blown into the room. It is understood that the purification component may include a HEPA filter.

[0106] In one embodiment, the clearance groove has a rearward-facing opening. It is understood that when installing the refrigerant pipe 420, the refrigerant pipe 420 is installed by avoiding the opening of the clearance groove. The rearward-facing opening of the clearance groove allows the refrigerant pipe 420 to be installed from behind the opening. That is, the first pipe segment 310 can be installed first, and then the refrigerant pipe 420 can be installed by avoiding the opening. This ensures that the refrigerant pipe 420 will not interfere with the first pipe segment 310, thereby allowing the refrigerant pipe 420 and the fresh air duct assembly 300 to be smoothly arranged within the housing 100.

[0107] The present invention also proposes an air conditioner, which includes an indoor unit as described above. The specific structure of the indoor unit is as described in the above embodiments. Since the present air conditioner adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. Optionally, the indoor unit also includes an outdoor unit, and the outdoor unit and the indoor unit are connected by a refrigerant pipe 420.

[0108] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The housing includes a chassis, and the back of the chassis is provided with a pipe routing groove; A fresh air device is installed inside the casing; as well as Fresh air duct assembly, one end of which is connected to the fresh air device, and the other end extends out of the housing; The fresh air duct assembly includes a first duct segment, and the duct groove is used to accommodate the first duct segment. At least a portion of the outer wall of the first duct segment is fitted to the groove wall of the duct groove. The first pipe section is detachably connected to the chassis. The first pipe section is provided with a hook, and the back of the chassis is provided with a hanging plate. The hook is hooked onto the hanging plate. The first pipe section is provided with a locking part, and the back of the chassis is provided with a mating part. The locking part and the mating part are locked together. The locking part includes locking members located on both sides of the hook, and the mating part includes locking posts located on both sides of the hanging plate. Each locking post has a locking groove for the locking member to be inserted into. The locking member includes: An elastic arm is provided on the first pipe section and located on one side of the hanging plate; as well as A limiting post is provided on the side of the elastic arm away from the hanging plate, and the limiting post is engaged in the locking groove.

2. The air conditioner indoor unit as described in claim 1, characterized in that, The pipe channel has an arc-shaped channel wall, and the first pipe section includes an arc-shaped part, which is fitted to the arc-shaped channel wall.

3. The air conditioner indoor unit as described in claim 2, characterized in that, The arc-shaped portion includes an arc-shaped plate corresponding to the arc-shaped groove wall and a wrapping layer disposed on the outer surface of the arc-shaped plate, wherein the wrapping layer is fitted to the arc-shaped groove wall.

4. The air conditioner indoor unit as described in claim 3, characterized in that, The first pipe section also includes a side plate opposite to the arc-shaped plate. The side plate is disposed near the opening of the pipe channel and extends along the height direction of the chassis.

5. The air conditioner indoor unit as described in claim 4, characterized in that, The first pipe section also includes a top plate connecting the arc-shaped plate and the side plate, and the top plate is detachably connected to the chassis.

6. The air conditioner indoor unit as described in claim 2, characterized in that, The arc-shaped groove wall is formed on the upper groove wall of the pipe running groove.

7. The air conditioner indoor unit as described in claim 1, characterized in that, The first pipe section includes a pipe body and an insulation layer wrapped around the pipe body, the insulation layer being fitted into the wall of the pipe channel.

8. The air conditioner indoor unit as described in claim 7, characterized in that, The tube body is made of a rigid material.

9. The indoor unit of the air conditioner as described in claim 1, characterized in that, The fresh air duct assembly also includes a second duct section, one end of which is connected to the first duct section, and the other end of which is used to extend through the wall to the outside.

10. The air conditioner indoor unit as described in claim 9, characterized in that, The first pipe segment has a first connector at one end near the second pipe segment, and the first connector is inserted into the second pipe segment.

11. The air conditioner indoor unit as described in claim 10, characterized in that, The first connector has a connecting cavity, the cross-section of which is circular or elliptical; the second pipe segment is a circular or elliptical pipe.

12. The air conditioner indoor unit as described in claim 1, characterized in that, The first pipe section is provided with a second connector at one end near the fresh air device. The second connector is provided with a plug-in part. The air inlet of the fresh air device is provided with a connecting part. The plug-in part and the connecting part are plugged in and engaged.

13. The air conditioner indoor unit as described in claim 1, characterized in that, The first pipe section is located on the upper side of the pipe running channel.

14. The air conditioner indoor unit as described in claim 1, characterized in that, The first pipe segment has a polygonal cross-section along its length.

15. An air conditioner, characterized in that, The air conditioner includes an indoor unit as described in any one of claims 1 to 14.

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