Fresh air module and air conditioner indoor unit

Abstract

The utility model provides a fresh air module and an air conditioner indoor unit, the fresh air module is provided with a fresh air cavity, a fresh air inlet, an air valve and an indoor air inlet part, the fresh air inlet and the indoor air inlet part both communicate with the fresh air cavity, the air valve is arranged in the fresh air cavity and provided with an air passing part communicating with the fresh air cavity, and the air valve moves between the fresh air inlet and the indoor air inlet part; the fresh air inlet is opened and closed; when the air valve moves to be close to the indoor air inlet part, the fresh air inlet communicates with the fresh air cavity, the air passing part is arranged towards the indoor air inlet part, and the indoor air inlet part and the air passing part are arranged in a staggered mode and communicate with each other. The convection intensity between indoor inlet air and fresh air inlet air is reduced through the indoor air inlet part and the air passing part which are arranged in a staggered mode, the situation that the temperature is suddenly lowered in the air mixing process of the indoor inlet air and the fresh air inlet air is avoided as much as possible, and condensation water is reduced.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a fresh air module and an indoor air conditioning unit. Background Technology

[0002] Air conditioners maintain indoor oxygen levels by supplying fresh air to the room, while stale air is expelled through building gaps such as door and window seams, thus achieving indoor air circulation. In some air conditioners, some indoor air will flow back into the unit and mix with the incoming fresh air, reducing the temperature and humidity difference between the fresh air and the indoor air and ensuring stable indoor temperature and humidity. However, this mixing process can easily produce condensation, affecting usability. Utility Model Content

[0003] This utility model provides a fresh air module and an indoor air conditioning unit to solve the technical problem of condensation easily generated during the mixing of indoor air and fresh air.

[0004] To achieve the above objectives, the fresh air module proposed in this application includes a fresh air cavity, a fresh air inlet, a damper, and an indoor air intake section. Both the fresh air inlet and the indoor air intake section are connected to the fresh air cavity. The damper is disposed within the fresh air cavity and has an air passage section that communicates with the fresh air cavity. The damper moves between the fresh air inlet and the indoor air intake section to open and close the fresh air inlet. When the damper moves closer to the indoor air intake section, the fresh air inlet is connected to the fresh air cavity, and the air passage section is positioned towards the indoor air intake section. The indoor air intake section and the air passage section are staggered but connected.

[0005] Optionally, in one embodiment, the air valve is rotatably connected between the indoor air inlet and the fresh air inlet. The air valve includes a first valve plate and a second valve plate that are relatively inclined. The second valve plate is provided with the air passage. The air valve rotatably causes the first valve plate to close the fresh air inlet, or rotatably causes the second valve plate to move closer to the indoor air inlet.

[0006] Optionally, in one embodiment, the fresh air cavity has a first sidewall, the first sidewall is provided with a first groove, and the sidewall of the first groove facing the fresh air cavity is provided with the indoor air inlet; when the air valve is close to the indoor air inlet, the second valve plate fits against the first sidewall and covers the first groove, and the air passage is disposed facing the indoor air inlet.

[0007] Optionally, in one embodiment, the air valve further includes a connecting plate connected between the first valve plate and the second valve plate, the connecting plate having a through noise reduction hole.

[0008] Optionally, in one embodiment, the flow area of ​​the indoor air inlet is equal to the flow area of ​​the air outlet.

[0009] Optionally, in one embodiment, the indoor air inlet is provided with a plurality of indoor air inlets, and the air outlet is provided with a plurality of air outlets.

[0010] Optionally, in one embodiment, the air inlet chamber and the air outlet volute are connected, wherein the fresh air chamber, the fresh air inlet, the air valve and the indoor air inlet are all disposed on the air inlet chamber, and the air outlet volute is provided with an air outlet.

[0011] Optionally, in one embodiment, a filter support is provided between the air inlet chamber shell and the air outlet volute shell, the filter support being used to install the filter.

[0012] Optionally, in one embodiment, a silencing element is further included, which is disposed within the air inlet cavity housing and located on the periphery of the filter screen.

[0013] This application also proposes an indoor air conditioning unit, including the aforementioned fresh air module.

[0014] The fresh air module provided in this application reduces the convection intensity between indoor air intake and fresh air intake by staggering the indoor air intake and the air passage, thereby avoiding a sudden drop in temperature during the mixing process of indoor air intake and fresh air intake and reducing the generation of condensation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application 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 this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the fluid replenishment tank in this application;

[0017] Figure 2 This is an exploded view of the fluid replenishment tank in this application;

[0018] Figure 3 This is a cross-sectional view of the air inlet cavity shell of this application;

[0019] Figure 4 This is a top view of the air inlet cavity shell of this application;

[0020] Figure 5 This is a cross-sectional view of the fluid replenishment tank in this application;

[0021] Figure 6This is a schematic diagram of the air valve in the replenishment tank of this application.

[0022] Explanation of icon numbers:

[0023] 1. Fresh air chamber; 11. First side wall; 12. First groove; 2. Fresh air inlet; 3. Air valve; 31. First valve plate; 32. Second valve plate; 321. Air passage section; 322. Air passage hole; 33. Connecting plate; 331. Noise reduction hole; 4. Indoor air inlet section; 41. Indoor air inlet hole; 5. Air inlet chamber shell; 6. Air outlet volute; 61. Air outlet; 7. Filter support; 8. Silencing component.

[0024] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0026] This application provides a fresh air module to solve the problem of condensation that easily occurs during the mixing of indoor air and fresh air. The following description will be provided in conjunction with the accompanying drawings.

[0027] In the embodiments of this application, such as Figure 1 , Figure 2 as well as Figure 3 As shown, the fresh air module includes a fresh air chamber 1, a fresh air inlet 2, a damper 3, and an indoor air intake 4. Both the fresh air inlet 2 and the indoor air intake 4 are connected to the fresh air chamber 1. The damper 3 is located inside the fresh air chamber 1 and has an air passage 321 that is connected to the fresh air chamber 1. The damper 3 moves between the fresh air inlet 2 and the indoor air intake 4 to open and close the fresh air inlet 2. When the damper 3 moves closer to the indoor air intake 4, the fresh air inlet 2 is connected to the fresh air chamber 1, and the air passage 321 is oriented towards the indoor air intake 4. The indoor air intake 4 and the air passage 321 are staggered and connected.

[0028] It should be noted that the indoor air intake 4 refers to a structure that allows indoor air to enter, while the air passage 321 refers to a structure that allows airflow to pass through. The air valve 3 opens or closes the fresh air intake 2 by reciprocating between the fresh air intake 2 and the indoor air intake 4. At the same time, the indoor air intake 4 and the air passage 321 are always open for air circulation. When the fresh air intake 2 is open, the fresh air mixes with the indoor air entering through the indoor air intake 4 to reduce the temperature and humidity difference between the newly added fresh air and the indoor air.

[0029] It is understandable that by setting an air passage 321 on the air valve 3, and when the air valve 3 moves close to the indoor air intake 4 (i.e., when fresh air and indoor air are mixed), the air passage 321 can face the indoor air intake 4 and form a staggered position with the indoor air intake 4. This makes the direction of indoor air intake and the direction of fresh air flow through the air passage 321 staggered, reducing the convection intensity between indoor air intake and fresh air, and avoiding a sudden drop in temperature of the mixed air as much as possible, thereby reducing the generation of condensation. At the same time, the indoor air intake and fresh air are initially mixed between the indoor air intake 4 and the air passage 321 before contacting the fresh air in the fresh air cavity 1, reducing the temperature and humidity difference.

[0030] In some embodiments, as Figure 2 and Figure 3 As shown, the air valve 3 is rotatably connected between the indoor air inlet 4 and the fresh air inlet 2. The air valve 3 includes a first valve plate 31 and a second valve plate 32 that are relatively inclined. The second valve plate 32 is provided with an air passage 321. The air valve 3 rotates to make the first valve plate 31 close the fresh air inlet 2, or rotates to make the second valve plate 32 approach the indoor air inlet 4.

[0031] It should be noted that the rotatable connection of the air valve 3 between the indoor air intake 4 and the fresh air inlet 2 means that the air valve 3 reciprocates between the indoor air intake 4 and the fresh air inlet 2 to open or close the fresh air inlet 2. The relatively inclined arrangement of the first valve plate 31 and the second valve plate 32 means that an angle is formed between the first valve plate 31 and the second valve plate 32. The size of the angle can be an acute angle, a right angle, or an obtuse angle, and the vertex of the angle is the rotation point of the air valve 3.

[0032] It is understandable that different functions are achieved through the first valve plate 31 and the second valve plate 32, and the first valve plate 31 and the second valve plate 32 are inclined to reduce the volume of the air valve 3 and adapt to different distances between the indoor air inlet 4 and the fresh air inlet 2.

[0033] In some embodiments, as Figure 3 and Figure 4As shown, the fresh air chamber 1 has a first side wall 11, the first side wall 11 is provided with a first groove 12, and the side wall of the first groove 12 facing the fresh air chamber 1 is provided with an indoor air inlet 4; when the air valve 3 is close to the indoor air inlet 4, the second valve plate 32 fits against the first side wall 11 and covers the first groove 12, and the air passage 321 is provided facing the indoor air inlet 4.

[0034] It is understood that at least a portion of the first sidewall 11 protrudes outward to form a first groove 12 facing the fresh air cavity 1. It should be noted that when the air valve 3 is close to the indoor air inlet 4, the second valve plate 32 adhering to the first sidewall 11 and covering the first groove 12 means that, on the one hand, the sidewall of the first groove 12 with the indoor air inlet 4 and the air passage 321 are spaced apart, which can cause air mixing between the indoor air inlet 4 and the air passage 321; on the other hand, the second valve plate 32 can adhere to the first sidewall 11 to prevent the indoor air from directly escaping into the fresh air cavity 1, thus ensuring the pre-mixing effect of the indoor air and fresh air between the indoor air inlet 4 and the air passage 321.

[0035] In some embodiments, as Figure 6 As shown, the air valve 3 also includes a connecting plate 33 connected between the first valve plate 31 and the second valve plate 32, and the connecting plate 33 is provided with a through noise reduction hole 331.

[0036] Understandably, the connecting plate 33 can improve the stability of the first valve plate 31 and the second valve plate 32, reduce vibration and noise, and the noise reduction hole 331 on the connecting plate 33 can reduce the noise generated by the air valve 3 in contact with the airflow during rotation.

[0037] In some embodiments, as Figure 3 and Figure 4 As shown, the flow area of ​​the indoor air inlet 4 is equal to the flow area of ​​the air outlet 321.

[0038] It should be noted that the flow area refers to the area through which air flows. Understandably, having the same flow area between the indoor air intake section 4 and the air passage section 321 helps to ensure that the volume of the indoor air intake and the fresh air flowing through the air passage section 321 are roughly the same, resulting in better premixing effect and preventing gas from flowing back into the room through the indoor air intake section 4.

[0039] In some embodiments, as Figure 3 , Figure 4 and Figure 6 As shown, the indoor air intake section 4 is provided with multiple indoor air intake holes 41, and the air passage section 321 is provided with multiple air passage holes 322.

[0040] Understandably, multiple indoor air inlets 41 can disperse the incoming indoor air, and similarly, multiple air outlets 322 can disperse the passing fresh air, allowing the incoming indoor air and fresh air to come into more thorough contact between the indoor air inlet section 4 and the air outlet section 321, thus improving the air mixing effect. The multiple indoor air inlets 41 and multiple air outlets 322 can adopt different shapes or different sizes of the same shape, and the total flow area of ​​the multiple indoor air inlets 41 is equal to the total flow area of ​​the multiple air outlets 322.

[0041] In some embodiments, as Figure 5 As shown, the fresh air module includes a connected air inlet shell 5 and an air outlet volute 6. The fresh air chamber 1, fresh air inlet 2, air valve 3 and indoor air inlet 4 are all located on the air inlet shell 5, and the air outlet volute 6 is provided with an air outlet 61.

[0042] It is understandable that the air outlet volute 6 is used to achieve fresh air outlet. In some specific implementations, the fresh air inlet 2 and the indoor air inlet 4 are arranged radially on the air inlet cavity shell 5, the air outlet volute 6 is connected to the air inlet cavity shell 5 axially, and the air outlet 61 is arranged radially on the air outlet volute 6, increasing the distance between the air outlet 61 and the indoor air inlet 4 and the fresh air inlet 2.

[0043] In some embodiments, as Figure 4 As shown, a filter support 7 is provided between the air inlet housing 5 and the air outlet volute 6. The filter support 7 is used to install the filter.

[0044] Understandably, a HEPA filter can be used to adsorb impurities in outdoor air and improve the quality of fresh air. A filter with a larger surface area can be installed between the inlet housing 5 and the outlet volute 6 to improve filtration efficiency. The filter is fixed between the inlet housing 5 and the outlet volute 6 by a filter holder 7.

[0045] In some embodiments, as Figure 2 As shown, the fresh air module also includes a silencing component 8, which is disposed inside the fresh air cavity 1 and located between the air inlet cavity shell 5 and the filter support 7.

[0046] It should be noted that the sound-absorbing component 8 includes sound-absorbing sheets and sound-absorbing cotton. The sound-absorbing component 8 is used to reduce various noises generated during the operation of the fresh air module.

[0047] This application also provides an air conditioner indoor unit, which includes the above-mentioned fresh air module. The specific structure of the fresh air module is as described in the above embodiments. Since this air conditioner indoor unit 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.

[0048] In the above embodiments, the descriptions of each embodiment have different focuses. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0049] The fresh air module provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A fresh air module, characterized in that, The system includes a fresh air chamber (1), a fresh air inlet (2), a damper (3), and an indoor air intake section (4). Both the fresh air inlet (2) and the indoor air intake section (4) are connected to the fresh air chamber (1). The damper (3) is located inside the fresh air chamber (1) and has a passage section (321) that is connected to the fresh air chamber (1). The damper (3) moves between the fresh air inlet (2) and the indoor air intake section (4) to open and close the fresh air inlet (2). When the damper (3) moves close to the indoor air intake section (4), the fresh air inlet (2) is connected to the fresh air chamber (1), and the passage section (321) is positioned towards the indoor air intake section (4). The indoor air intake section (4) and the passage section (321) are staggered and connected.

2. The fresh air module according to claim 1, characterized in that, The air valve (3) is rotatably connected between the indoor air inlet (4) and the fresh air inlet (2). The air valve (3) includes a first valve plate (31) and a second valve plate (32) that are relatively inclined. The second valve plate (32) is provided with the air passage (321). The air valve (3) rotatably causes the first valve plate (31) to close the fresh air inlet (2), or rotatably causes the second valve plate (32) to move closer to the indoor air inlet (4).

3. The fresh air module according to claim 2, characterized in that, The fresh air cavity (1) has a first sidewall (11), the first sidewall (11) is provided with a first groove (12), and the first groove (12) is provided with the indoor air inlet (4) on the sidewall facing the fresh air cavity (1); when the air valve (3) is close to the indoor air inlet (4), the second valve plate (32) fits against the first sidewall (11) and covers the first groove (12), and the air passage (321) is provided facing the indoor air inlet (4).

4. The fresh air module according to claim 2, characterized in that, The air valve (3) also includes a connecting plate (33) connected between the first valve plate (31) and the second valve plate (32), and the connecting plate (33) is provided with a through noise reduction hole (331).

5. The fresh air module according to claim 1, characterized in that, The flow area of ​​the indoor air intake (4) is equal to the flow area of ​​the air passage (321).

6. The fresh air module according to claim 1, characterized in that, The indoor air intake section (4) is provided with multiple indoor air intake holes (41), and the air passage section (321) is provided with multiple air passage holes (322).

7. The fresh air module according to claim 1, characterized in that, It includes a connected air inlet shell (5) and an air outlet volute (6). The fresh air chamber (1), the fresh air inlet (2), the air valve (3) and the indoor air inlet (4) are all disposed on the air inlet shell (5). The air outlet volute (6) is provided with an air outlet (61).

8. The fresh air module according to claim 7, characterized in that, A filter support is provided between the air inlet chamber shell (5) and the air outlet volute shell (6), and the filter support is used to install the filter.

9. The fresh air module according to claim 8, characterized in that, It also includes a silencing component (8), which is disposed inside the air inlet cavity shell (5) and located on the periphery of the filter screen.

10. An indoor unit for an air conditioner, characterized in that, Includes the fresh air module as described in any one of claims 1-9.

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