Window type air conditioner

Abstract

The utility model discloses a window type air conditioner, which relates to the technical field of air conditioners and comprises an air duct back plate, the air duct back plate is arranged on the outer side of an indoor fan, and the air duct back plate is provided with a back side wall enabling the indoor fan to be separated from an outdoor unit. A plurality of first rib components and a plurality of second rib components are arranged on the side face, facing the indoor fan, of the back side wall, the first rib components and the second rib components are arranged to be at least used for enhancing the rigidity of the back side wall in the first direction, and each first rib component and the corresponding second rib component are arranged in an intersecting mode; and each second rib component is intersected with the plurality of first rib components. According to the window type air conditioner, sound insulation optimization is conducted on the air duct back plate between the indoor unit and the outdoor unit, the rigidity of the air duct back plate is improved through the first rib component and the second rib component, the air duct back plate can have enough structural rigidity within the middle-low frequency band range, and therefore sound energy transmitted by noise sound waves is reduced, and the noise reduction effect is improved. And the sound insulation index of the air duct backboard is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a window type air conditioner. Background Art

[0002] A window air conditioner is an air conditioner that can be installed on a wall with an installation opening (for example, a window). A window air conditioner generally includes an indoor unit and an outdoor unit, wherein the indoor unit has an indoor air inlet and an indoor air outlet, and indoor air can flow into the indoor unit through the indoor air inlet, exchange heat with the indoor heat exchanger, and then flow into the room after being guided by the air guide plate at the indoor air outlet; the outdoor unit has an outdoor air inlet and an outdoor air outlet, and outdoor air can flow into the outdoor unit through the outdoor air inlet, exchange heat with the outdoor heat exchanger, and be discharged at the outdoor air outlet.

[0003] Compared with split air conditioners, window air conditioners have the indoor unit and outdoor unit integrated into one. Therefore, when the window air conditioner is running, the noise generated by the compressor, fan and heat exchanger located in the outdoor unit can easily be transmitted to the indoor unit, causing louder noise indoors and affecting the user experience.

[0004] At present, the existing window air conditioners generally add a steel plate between the indoor unit and the outdoor unit for sound insulation. However, since the thickness of the steel plate should not be too thick, the steel plate has insufficient rigidity when isolating the noise in the low and medium frequency bands, and it is difficult to isolate the noise. For example, if damping materials and sound-absorbing materials are additionally set in the indoor unit or the outdoor unit, although the noise in the low and medium frequency bands can be isolated to a certain extent, the damping materials and sound-absorbing materials need to be fixed with additional plates. The additional plates, damping materials, and sound-absorbing materials will greatly increase the overall size of the window air conditioner. Moreover, the manufacturing and processing of damping materials and sound-absorbing materials are relatively expensive, and the additional plate structure is difficult to install and assemble. Utility Model Content

[0005] The utility model aims to provide a window air conditioner, which optimizes the sound insulation of the air duct between the indoor unit and the outdoor unit, so that the window air conditioner can improve the medium and low frequency sound insulation of the air duct itself, and the window air conditioner utilizes the space inside the air duct without affecting the overall size of the window air conditioner, so as to solve the problem that the medium and low frequency noise of the existing window air conditioner is difficult to isolate or the isolation cost is too high.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A window air conditioner, comprising:

[0008] case;

[0009] An outdoor unit, the outdoor unit is arranged in the housing to perform heat exchange on outdoor air;

[0010] An indoor unit is arranged in the housing to perform heat exchange on the indoor air; wherein,

[0011] The indoor unit comprises:

[0012] an indoor fan configured to introduce air from outside the housing into the interior of the housing and to output the air after heat exchange inside the housing to the interior of the room; and the housing comprises:

[0013] an air duct back plate, the air duct back plate being disposed between the indoor unit and the outdoor unit and being located outside the indoor fan, and the air duct back plate having a back side wall for separating the indoor fan from the outdoor unit, and a gap being formed between the back side wall and the indoor fan; and

[0014] The side of the back wall facing the indoor fan is provided with a plurality of first rib members and a plurality of second rib members, wherein:

[0015] Taking the direction from the outdoor unit to the indoor unit as a first direction, the first rib member and the second rib member are configured to at least enhance the rigidity of the back wall in the first direction, and, within the interval, the first rib member and the second rib member extend along the first direction and do not interfere with the indoor fan, and,

[0016] Each of the first rib members is arranged to intersect with a plurality of the second rib members, and each of the second rib members is arranged to intersect with a plurality of the first rib members, so that a rib network structure is formed on the side of the back wall facing the indoor fan.

[0017] In some embodiments, a through hole connected to the outdoor unit is opened on the back wall, and the first rib member and the second rib member are both avoided in the through hole, so that the first rib member and the second rib member are not in the area where the through hole is located.

[0018] In some embodiments, the direction in which the first rib member and the second rib member extend on the back wall is taken as the length direction, the first direction is taken as the height direction of the first rib member and the second rib member, the thickness of the first rib member is the same as the thickness of the back wall in the first direction, and the thickness of the second rib member is the same as the thickness of the back wall in the first direction.

[0019] In some embodiments, a first length of the first rib member extending in the first direction is H1, a second length of the second rib member extending in the first direction is H2, and the first length satisfies H1≥L MAX *2%, the second length satisfies H2 ≥ L MAX *2%, of which L MAX is the maximum value of the edge length of the back wall.

[0020] In some embodiments, two adjacent first rib members and two adjacent second rib members enclose a structural hole, the hole area of ​​the structural hole is s, and the hole area satisfies 0<s≤S 板 *4%, of which S 板 It is the total area of ​​the side of the back wall facing the indoor fan.

[0021] In some embodiments, each of the first rib members is perpendicular to the plurality of the second rib members, and each of the second rib members is perpendicular to the plurality of the first rib members, so that the first rib members and the second rib members are orthogonally and staggeredly connected.

[0022] In some embodiments, the outer contour of each of the first rib members is an arc shape, and a plurality of the first rib members are sequentially arranged in a concentric manner, and,

[0023] One end of each of the second rib members is connected to the center of the circle around which the first rib members are arranged, and the other end thereof is connected to the outermost first rib member.

[0024] In some embodiments, two adjacent first rib members are parallel to each other, and two adjacent second rib members are parallel to each other, and at least one of the first rib member and the second rib member is inclined to the vertical direction, so that the angle between the first rib member and the second rib member is a non-vertical angle.

[0025] In some embodiments, at least one of the first rib member and the second rib member extends in a lateral direction of the back side wall and is connected to two lateral sides of the back side wall.

[0026] In some embodiments, the side surface of the back wall facing the indoor fan is a vertically arranged plane, and the first rib member and the second rib member are connected to the side surface.

[0027] Compared with the prior art, the window air conditioner implemented by the utility model has the following beneficial effects:

[0028] The window air conditioner of the present application optimizes the sound insulation of the air duct back plate between the indoor unit and the outdoor unit, and uses the first rib member and the second rib member to increase the stiffness of the back wall of the air duct back plate in the first direction, so that the window air conditioner can make the air duct back plate, a flow channel component, have sufficient structural stiffness within the medium and low frequency range. In this way, when the outdoor unit generates noise during operation, when the noise is transmitted from the outdoor unit to the back wall, the back wall can reduce the amplitude of resonance with the noise sound wave in the first direction, thereby reducing the sound energy of the noise sound wave transmitted to the indoor unit through the air duct back plate, thereby increasing the sound insulation of the air duct back plate. In addition, the present invention The first rib member and the second rib member of the application are arranged between the back wall and the indoor fan, making full use of the interval inside the air duct itself. The first rib member and the second rib member do not need to be additionally configured with installation space, so that the first rib member and the second rib member can be used in the existing window air conditioner without changing the existing structure of the window air conditioner and will not affect the overall appearance size of the window air conditioner. The window air conditioner provided with the first rib member and the second rib member can maintain the existing overall appearance size and does not need to add additional sound insulation materials, thereby solving the problem that the existing window air conditioner has medium and low frequency noise that is difficult to isolate or the isolation cost is too high. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of a window air conditioner in this embodiment;

[0030] Figure 2 yes Figure 1 A schematic diagram of the internal structure of the structure shown;

[0031] Figure 3 yes Figure 1 A schematic cross-sectional view of the structure shown;

[0032] Figure 4 yes Figure 3 A magnified view of middle;

[0033] Figure 5 is a schematic diagram of an indoor unit in this embodiment;

[0034] Figure 6 is a schematic diagram of the connection between the air duct back plate and the air duct front plate in this embodiment;

[0035] Figure 7 is a schematic diagram of the air duct back plate in this embodiment;

[0036] Figure 8 is a schematic diagram of another perspective of the air duct back plate in this embodiment;

[0037] Fig. 9 Schematic diagram of the reinforcement network structure in this embodiment;

[0038] Fig.10yes Fig. 9 Enlarged view of middle B;

[0039] Fig.11 is a schematic diagram of another embodiment of the reinforcement network structure in this embodiment;

[0040] Fig.12 It is a schematic diagram of another form of the rib mesh structure in this embodiment.

[0041] In the figure, 100, a window air conditioner;

[0042] 1. Shell; 1a. Air duct back plate; 10a. Back plate space; 11a. Back side wall; 110a. Through hole; 1b. Air duct front plate; 10b. Indoor air inlet; 11b. Indoor air outlet; 1c. Accommodation space; 2. Outdoor unit; 2a. Compressor; 2b. Outdoor heat exchanger; 2c. Outdoor fan; 3. Indoor unit; 3a. Indoor heat exchanger; 3b. Indoor fan; 4. Partition; 5. First rib member; 6. Second rib member; 7. Structural hole. DETAILED DESCRIPTION

[0043] The specific implementation methods of the present application are further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but are not intended to limit the scope of the present application.

[0044] In the description of the present application, it should be understood that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, it may be internal connectivity between two elements or an interactive relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0045] In the description of the present application, it should be understood that the terms "height", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. used in the present application to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0046] In the description of this application, it should be understood that the terms "first" and "second" are used in this application for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0047] In the present application, the air conditioner performs a refrigeration cycle or a heating cycle of the air conditioner through a compressor 2a, a condenser, an expansion valve and an evaporator. The refrigeration cycle and the heating cycle include a series of processes such as compression, condensation, expansion and evaporation, and provide cooling or heat to the indoor space through the heat absorption or heat release of the refrigerant to adjust the temperature of the indoor space.

[0048] The compressor 2a compresses the refrigerant gas in a high temperature and high pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0049] The expansion valve expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor 2a. The evaporator can achieve a refrigeration effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. In the whole cycle, the air conditioner can adjust the temperature of the indoor space.

[0050] like Figure 1 As shown, the window air conditioner 100 of the present application includes an indoor unit 3 and an outdoor unit 2, the outdoor unit 2 refers to the part of the refrigeration cycle including a compressor 2a and an outdoor heat exchanger, the indoor unit 3 includes an indoor heat exchanger, and the expansion valve can be provided in the indoor unit 3 or the outdoor unit 2.

[0051] The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger functions as a condenser, the air conditioner functions as a heater in a heating mode, and when the indoor heat exchanger functions as an evaporator, the air conditioner functions as a cooler in a cooling mode.

[0052] Reference below Figure 1-Figure 12 The window air conditioner 100 according to the embodiment of the present application includes a housing 1, in which an outdoor unit 2 and an indoor unit 3 are arranged.

[0053] The outdoor unit 2 includes a compressor 2a, an outdoor heat exchanger 2b, an outdoor fan 2c and a driving motor (not shown in the figure). The driving motor drives the outdoor fan 2c to rotate, so that the airflow blown by the outdoor fan 2c blows toward the outdoor heat exchanger 2b, and the outdoor heat exchanger 2b is cooled by air to achieve heat exchange with the outdoor air.

[0054] The indoor unit 3 includes an indoor heat exchanger 3a and an indoor fan 3b. The rotation of the indoor fan 3b can introduce air outside the shell 1 into the inside of the shell 1. After the indoor heat exchanger 3a performs heat exchange on the introduced air, the indoor fan 3b outputs the air after heat exchange inside the shell 1 to the room, thereby realizing heat exchange of the indoor air.

[0055] It can be understood that the window air conditioner 100 of this embodiment has a shell 1 that entirely wraps the indoor unit 3 and the outdoor unit 2, so that when the window air conditioner 100 is working, the noise generated by the compressor 2a, outdoor heat exchanger 2b, outdoor fan 2c and drive motor of the outdoor unit 2 will be transmitted inside the shell 1 through the air toward the indoor unit 3.

[0056] On the indoor side of the window air conditioner 100 of the present embodiment, the shell 1 includes a duct back plate 1a and a duct front plate 1b, and the duct back plate 1a and the duct front plate 1b are spliced ​​with each other to form a accommodating space 1c for accommodating the indoor unit 3, and the duct front plate 1b is provided with an indoor air inlet 10b and an indoor air outlet 11b facing the indoor side. During the use of the window air conditioner 100, the indoor air inlet 10b is suitable for introducing indoor airflow, and the indoor air outlet 11b is suitable for exporting airflow to the indoor environment. In this way, during the use of the window air conditioner 100, the indoor airflow can be introduced and updated, so that the use performance of the window air conditioner 100 can be adjusted according to the indoor environment to improve the use experience of the window air conditioner 100.

[0057] refer to Figure 3-8 The duct back plate 1a is arranged outside the indoor fan 3b, and a back plate space 10a is provided on one side of the duct back plate 1a, so that when the duct back plate 1a and the duct front plate 1b are spliced, a storage space for the indoor fan 3b can be formed. In addition, the duct back plate 1a has a back side wall 11a that separates the indoor fan 3b from the outdoor unit 2. The back side wall 11a is located at the outermost side of the indoor unit 3 facing the outdoor unit 2, separating the indoor unit 3 from the outdoor unit 2, so that the indoor fan 3b and the air introduced by the indoor fan 3b are separated from the outdoor unit 2.

[0058] Generally speaking, there is a gap 4 between the back wall 11a and the indoor fan 3b, so that the indoor fan 3b is assembled with the air duct back plate 1a. As some examples of this embodiment, the air duct back plate 1a can extend a certain distance toward the direction where the outdoor unit 2 is located, so as to be connected with the cover shell arranged outside the outdoor unit 2. At the same time, based on the extended distance, the inside of the air duct back plate 1a can more easily form a gap 4 with the indoor fan 3b.

[0059] refer to Figure 7-10In this embodiment, one side of the back wall 11a faces the outdoor unit 2, and the other side faces the indoor fan 3b, and a plurality of first rib members 5 and a plurality of second rib members 6 are provided on the side of the back wall 11a facing the indoor fan 3b, wherein:

[0060] Taking the direction from the outdoor unit 2 to the indoor unit 3 as the first direction, the first rib member 5 and the second rib member 6 are configured to enhance the rigidity of the back wall 11a in the first direction, and, in the interval 4, the first rib member 5 and the second rib member 6 extend along the first direction and do not interfere with the indoor fan 3b, and,

[0061] Each first rib member 5 is intersected with a plurality of second rib members 6, and each second rib member 6 is intersected with a plurality of first rib members 5, so that a rib network structure is formed on the side of the back wall 11a facing the indoor fan 3b.

[0062] It is understandable that when the outdoor unit 2 is working, the noise generated by the compressor 2a, the outdoor heat exchanger 2b, the outdoor fan 2c and the drive motor of the outdoor unit 2 is transmitted through the air and can be transmitted to the back wall 11a of the air duct back plate 1a in the first direction. After the back wall 11a is excited by the sound waves of these noises, the back wall 11a is similar to an elastic member and will resonate with the sound waves of these noises in the first direction. In this way, the greater the stiffness of the back wall 11a, the smaller the amplitude of the resonance of the back wall 11a, and thus the less sound energy of the sound waves transmitted through the back wall 11a, so that the sound insulation of the back wall 11a is greater. Therefore, when the first rib member 5 and the second rib member 6 are provided on the back wall 11a, the back wall 11a can greatly improve its own stiffness in the first direction, so that the back wall 11a can reduce the resonance amplitude in the first direction after being excited by the sound wave, thereby improving the sound insulation of the back wall 11a, and allowing the sound waves of the noise propagated from the outdoor unit 2 to be greatly isolated by the back wall 11a.

[0063] It is understandable that the required length of the first rib member 5 and the second rib member 6, or the required area of ​​the rib mesh structure, is related to the structural thickness of the back wall 11a itself in the first direction. According to the size of the back wall 11a itself, the length of the first rib member 5 and the second rib member 6 should be set to improve the stiffness of the back wall 11a in the first direction. As an example of this embodiment, the first rib member 5 and the second rib member 6 can completely cover or basically cover the side of the back wall 11a facing the indoor fan 3b, so that the length of the first rib member 5 and the second rib member 6 is sufficient to meet the stiffness improvement requirement of the back wall 11a.

[0064] refer to Figure 8As an example of the present embodiment, the left-right direction shown in the figure is the lateral direction of the back wall 11a, and the up-down direction shown in the figure is the vertical direction of the back wall 11a. The side of the back wall 11a facing the indoor fan 3b is a vertically arranged plane. The first rib member 5 and the second rib member 6 are connected to the side surface, and the first rib member 5 extends along the lateral direction of the back wall 11a and is connected to both sides of the lateral direction of the back wall 11a. The second rib member 6 extends along the vertical direction of the back wall 11a from the top of the back wall 11a to the bottom of the back wall 11a, and leaves a space with the bottom of the back wall 11a. In this way, it can be ensured that the first rib member 5 and the second rib member 6 will not hinder the assembly of the air duct back plate 1a, and it can also be ensured that the area where the first rib member 5 and the second rib member 6 are arranged has sufficient coverage area to provide sufficient structural rigidity for the back wall 11a.

[0065] refer to Figure 8 As an example of this embodiment, a through hole 110a connected to the outdoor unit 2 is opened on the back wall 11a, and the first rib member 5 and the second rib member 6 are both avoided in the through hole 110a, so that there is no first rib member 5 and the second rib member 6 in the area where the through hole 110a is located.

[0066] It is understandable that the through hole 110a provided on the back wall 11a may be a through hole 110a for passage of a pipeline, a through hole 110a for drainage, or a through hole 110a for introducing fresh air into the room, etc. According to the functional effects of the through hole 110a, the through hole 110a provided on the back wall 11a may be sealed and closed by a sealing material, or a valve-type connection may be adopted so that the through hole 110a provided on the back wall 11a can be selectively opened or closed.

[0067] The first rib member 5 and the second rib member 6 are avoided in the area where the through hole 110a is located, so that when the through hole 110a is used for the configured functional effect, it can avoid interference with the first rib member 5 and the second rib member 6, and avoid the first rib member 5 and the second rib member 6 from affecting the function to be achieved by the through hole 110a. In addition, generally speaking, the area occupied by the through hole 110a is much smaller than the area of ​​the back wall 11a in the first direction. The first rib member 5 and the second rib member 6 are avoided in the area where the through hole 110a is located, and will not affect the structural rigidity of the back wall 11a in the first direction.

[0068] refer to Figure 7-10, the direction in which the first rib member 5 and the second rib member 6 extend on the back wall 11a is the length direction, the direction in which the first rib member 5 and the second rib member 6 protrude from the back wall 11a in the first direction is the height direction, and the direction perpendicular to the length direction and the height direction is the thickness direction of the first rib member 5 and the second rib member 6. As an example of this embodiment, the thickness t1 of the first rib member 5 is the same as the thickness of the back wall 11a in the first direction, and the thickness t2 of the second rib member 6 is the same as the thickness of the back wall 11a in the first direction.

[0069] It can be understood that the greater the thickness of the first rib member 5 and the second rib member 6, the greater the structural rigidity of the first rib member 5 and the second rib member 6 themselves, and the greater the structural rigidity of the back wall 11a provided with the first rib member 5 and the second rib member 6. The improved structural rigidity of the back wall 11a will increase the sound insulation of the back wall 11a, thereby improving the sound insulation effect of the air duct back plate 1a.

[0070] refer to Figure 7-10 As an example of this embodiment, the back side wall 11a is a structure with a square outer contour, and the edge length of the back side wall 11a is L. According to the outer contour shape of the back side wall 11a itself, there is a maximum edge length L MAX .

[0071] The first length of the first rib member 5 extending in the first direction is H1, the second length of the second rib member 6 extending in the first direction is H2, and the first length satisfies H1≥L MAX *2%, the second length satisfies H2≥L MAX *2%, of which L MAX It is the maximum value of the edge length of the rear wall 11a.

[0072] It can be understood that the greater the length of the first rib member 5 and the second rib member 6 extending in the first direction, the greater the structural rigidity of the first rib member 5 and the second rib member 6. Similarly, the structural rigidity of the back wall 11a provided with the first rib member 5 and the second rib member 6 will be greater, thereby improving the sound insulation of the back wall 11a. As for the back wall 11a, in window air conditioners 100 of different sizes, the projection area of ​​the back wall 11a in the first direction is different. When the thickness of the back wall 11a is constant, the greater the length and width of the back wall 11a, the smaller its rigidity in the first direction. Therefore, for the back wall 11a, it is necessary to configure the first length of the first rib member 5 extending in the first direction and the second length of the second rib member 6 extending in the first direction according to the length of its structure to compensate for the lack of rigidity of the back wall 11a itself, so that the back wall 11a can have sufficient sound insulation to prevent the noise generated by the operation of the outdoor unit 2 from penetrating into the room in large quantities.

[0073] refer to Figure 7-10 As an example of this embodiment, two adjacent first rib members 5 and two adjacent second rib members 6 enclose a structural hole 7, and the hole area of ​​the structural hole 7 is s, and the hole area satisfies 0<s≤S 板 *4%, of which S 板 It is the total area of ​​the side surface of the back wall 11a facing the indoor fan 3b.

[0074] It can be understood that each first rib member 5 is intersected with multiple second rib members 6, and each second rib member 6 is intersected with multiple first rib members 5, so that multiple structural holes 7 are enclosed and formed between the first rib members 5 and the second rib members 6. The smaller the hole area of ​​these structural holes 7, the greater the structural stiffness of the rib network structure formed by the first rib members 5 and the second rib members 6 in the first direction, thereby making the structural stiffness of the back wall 11a provided with the first rib members 5 and the second rib members 6 greater, so that the sound insulation of the back wall 11a is improved.

[0075] When the ratio of the hole area s of the structural hole 7 to the total area of ​​the side of the back wall 11a facing the indoor fan 3b is 1:25, the structural rigidity of the back wall 11a in the first direction can be increased by nearly 40%. Therefore, in order to ensure the structural rigidity and sound insulation of the back wall 11a, the hole area of ​​the structural hole 7 is preferably not greater than the total area S of the side of the back wall 11a facing the indoor fan 3b. 板 The minimum hole area of ​​the structural hole 7 can be adjusted according to the required sound insulation of the air duct back plate 1a.

[0076] refer to Figure 7-12 The first rib member 5 and the second rib member 6 intersect with each other, so that the rib network structure composed of the first rib member 5 and the second rib member 6 can have corresponding structural rigidity. There are various ways to intersect the first rib member 5 and the second rib member 6, which can be selected according to the size of the interval 4 between the back wall 11a and the indoor fan 3b and the size of the area of ​​the back wall 11a itself in the first direction.

[0077] As an example of this embodiment, Figure 7-10 As shown, the first rib members 5 and the second rib members 6 can be staggeredly connected in a vertical orthogonal manner. Specifically, each first rib member 5 can be perpendicular to the second rib member 6, and each second rib member 6 can be perpendicular to multiple first rib members 5, so that the first rib members 5 and the second rib members 6 are orthogonally staggered.

[0078] As another example of this embodiment, Fig.11As shown, the first rib members 5 and the second rib members 6 can be staggered in a non-orthogonal staggered manner. Specifically, the outer contour of each first rib member 5 is an arc shape, and multiple first rib members 5 are sequentially arranged in a concentric arrangement, and one end of each second rib member 6 is connected to the center of the circle around which the first rib member 5 is arranged, and the other end is connected to the outermost first rib member 5. Or, as Fig.12 As shown, as another example of this embodiment, two adjacent first rib members 5 are parallel to each other, and two adjacent second rib members 6 are parallel to each other, and at least one of the first rib member 5 and the second rib member 6 is inclined in the vertical direction, so that the angle between the first rib member 5 and the second rib member 6 is a non-vertical angle.

[0079] In summary, the window air conditioner 100 provided in the embodiment of the present application optimizes the sound insulation of the duct back plate 1a between the indoor unit 3 and the outdoor unit 2, and uses the first rib member 5 and the second rib member 6 to improve the stiffness of the back wall 11a of the duct back plate 1a in the first direction, so that the window air conditioner 100 can make the duct back plate 1a, a flow channel component, have sufficient structural stiffness within the medium and low frequency range. In this way, when the outdoor unit 2 generates noise during operation, when the noise is transmitted from the outdoor unit 2 to the back wall 11a, the back wall 11a can reduce the amplitude of resonance with the noise sound wave in the first direction, thereby reducing the sound energy of the noise sound wave transmitted to the indoor unit 3 through the duct back plate 1a, and improving the sound insulation of the duct back plate 1a. Moreover, the first rib member 5 and the second rib member 6 of the present application are arranged between the back wall 11a and the indoor fan 3b, making full use of the interval 4 inside the air duct itself. The first rib member 5 and the second rib member 6 do not need to be additionally configured with an installation space, so that the first rib member 5 and the second rib member 6 can be applied to the existing window air conditioner 100 without changing the existing structure of the window air conditioner 100, and will not affect the overall appearance size of the window air conditioner 100. The window air conditioner 100 provided with the first rib member 5 and the second rib member 6 can maintain the existing overall appearance size, and there is no need to add additional sound insulation materials, thereby solving the problem that the existing window air conditioner 100 has medium and low frequency noises that are difficult to isolate or the isolation cost is too high.

[0080] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present application. These improvements and substitutions should also be regarded as the scope of protection of the present application.

Claims

1. A window air conditioner, characterized in that: include: case; An outdoor unit, the outdoor unit is arranged in the housing to perform heat exchange on outdoor air; An indoor unit is arranged in the housing to perform heat exchange on the indoor air; wherein, The indoor unit comprises: an indoor fan configured to introduce air from outside the housing into the interior of the housing and to output the air after heat exchange inside the housing to the interior of the room; and the housing comprises: an air duct back plate, the air duct back plate being arranged between the indoor unit and the outdoor unit and being located outside the indoor fan, the air duct back plate having a back side wall for separating the indoor fan from the outdoor unit, and a gap being formed between the back side wall and the indoor fan; and The side of the back wall facing the indoor fan is provided with a plurality of first rib members and a plurality of second rib members, wherein: Taking the direction from the outdoor unit to the indoor unit as a first direction, the first rib member and the second rib member are configured to at least enhance the rigidity of the back wall in the first direction, and, within the interval, the first rib member and the second rib member extend along the first direction and do not interfere with the indoor fan, and, Each of the first rib components is intersected with a plurality of the second rib components, and each of the second rib components is intersected with a plurality of the first rib components.

2. The window air conditioner according to claim 1, characterized in that: A through hole connected to the outdoor unit is formed on the back wall, and the first rib member and the second rib member are both avoided in the through hole, so that the first rib member and the second rib member are not in the area where the through hole is located.

3. The window air conditioner according to claim 1, characterized in that: The direction in which the first rib member and the second rib member extend on the back wall is taken as the length direction, the first direction is taken as the height direction of the first rib member and the second rib member, and the direction perpendicular to the length direction and the height direction is taken as the thickness direction. The thickness of the first rib member is the same as the thickness of the back wall in the first direction, and the thickness of the second rib member is the same as the thickness of the back wall in the first direction.

4. The window air conditioner according to claim 1, characterized in that: The back side wall is a square structure; the first length of the first rib member extending in the first direction is H1, the second length of the second rib member extending in the first direction is H2, and the first length satisfies H1≥L MAX *2%, the second length satisfies H2 ≥ L MAX *2%, of which L MAX is the maximum value of the edge length of the back wall.

5. The window air conditioner according to claim 1, characterized in that: Two adjacent first rib members and two adjacent second rib members enclose a structural hole, the hole area of ​​the structural hole is s, and the hole area satisfies 0<s≤S 板 *4%, of which S 板 It is the total area of ​​the side of the back wall facing the indoor fan.

6. The window air conditioner according to claim 1, characterized in that: Each of the first rib members is perpendicular to the plurality of the second rib members, and each of the second rib members is perpendicular to the plurality of the first rib members, so that the first rib members are orthogonally and staggeredly connected with the second rib members.

7. The window air conditioner according to claim 1, characterized in that: The outer contour of each of the first rib components is an arc shape, and a plurality of the first rib components are sequentially arranged in a concentric manner, and, One end of each of the second rib members is connected to the center of the circle around which the first rib members are arranged, and the other end thereof is connected to the outermost first rib member.

8. The window air conditioner according to claim 1, characterized in that: Two adjacent first rib members are parallel to each other, and two adjacent second rib members are parallel to each other, and at least one of the first rib member and the second rib member is inclined to the vertical direction, so that the angle between the first rib member and the second rib member is a non-vertical angle.

9. The window air conditioner according to claim 1, characterized in that: At least one of the first rib member and the second rib member extends in a lateral direction of the back side wall and is connected to two lateral sides of the back side wall.

10. The window air conditioner according to claim 1, characterized in that: The side surface of the back wall facing the indoor fan is a vertically arranged plane, and the first rib member and the second rib member are connected to the side surface.

Images