Cabinet fresh air conditioner

Abstract

The application provides a cabinet type fresh air conditioner, comprising: an air conditioner shell, the air conditioner shell comprising an air inlet panel, the air inlet panel being provided with an indoor air inlet; an air outlet duct, comprising an upwardly extending upper air duct and a downwardly extending lower air duct, the air outlet duct being provided with an indoor centrifugal fan; a heat exchanger, being arranged between the air inlet panel and the air outlet duct, the heat exchanger comprising an upper heat exchange section and a lower heat exchange section, the connecting position of the upper heat exchange section and the lower heat exchange section corresponding to the position of the centrifugal fan, and the lower heat exchange section being inclined from top to bottom towards the side of the lower air duct to form an airflow accommodating space between the lower heat exchange section and the air inlet panel; and a fresh air device, comprising a first fresh air outlet, the fresh air sent by the first fresh air outlet being capable of entering the airflow accommodating space. The application can reduce the overall floor area volume of the air conditioner, especially the thickness, and improve the appearance consistency and appearance aesthetics of the air conditioner.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning technology, specifically relating to a cabinet-type fresh air air conditioner. Background Technology

[0002] Existing top-and-bottom air-discharge cabinet air conditioners typically have centrifugal ducts with hollow sections at the top and bottom. However, their evaporators are long and straight, which prevents the use of the hollow sections at the top and bottom of the ducts.

[0003] The fresh air outlet of a fresh air conditioning unit is generally designed on the outside or inside of the air conditioner. When the fresh air outlet is designed on the outside of the air conditioner, rapid ventilation can be achieved, but there is a temperature difference between the fresh air and the indoor air, resulting in poor comfort. When the fresh air outlet is designed inside the air conditioner, the fresh air is temperature regulated by the evaporator, which can achieve the delivery of fresh air without temperature difference, resulting in high comfort. However, the fresh air outlet needs sufficient space. Currently, in order to meet the aforementioned requirements, the method of enlarging the air inlet panel is often adopted, especially the design of the air inlet panel as a protruding structure at the fresh air outlet position. This results in the air conditioner being large and unsightly. Summary of the Invention

[0004] Therefore, the present invention provides a cabinet-type fresh air air conditioner that can solve the technical problem that the air inlet panel at the fresh air outlet of the existing cabinet-type fresh air air conditioner needs to reserve space for fresh air delivery, resulting in the air conditioner being large and unsightly.

[0005] To address the above problems, the present invention provides a cabinet-type fresh air air conditioner, comprising:

[0006] An air conditioner housing, the air conditioner housing including an air inlet panel, the air inlet panel having an indoor air inlet;

[0007] An air outlet duct, located inside the air conditioner casing, includes an upward-extending upper air outlet duct and a downward-extending lower air outlet duct, and an indoor centrifugal fan is installed inside the air outlet duct.

[0008] A heat exchanger is disposed between the air inlet panel and the air outlet duct, and the heat exchanger has an upper heat exchange section and a lower heat exchange section. The connection position between the upper heat exchange section and the lower heat exchange section corresponds to the position of the indoor centrifugal fan, and the lower heat exchange section is inclined from top to bottom toward the lower air duct to form an airflow accommodating space between the lower heat exchange section and the air inlet panel.

[0009] The fresh air device is located inside the air conditioner casing and has a first fresh air outlet, through which fresh air is delivered to enter the airflow accommodating space.

[0010] In some implementations...

[0011] The maximum fresh air output of the fresh air device is Vx, and the volume of the airflow accommodating space is V, where Vx ≤ V*1h.

[0012] In some implementations...

[0013] The fresh air device also has a second fresh air outlet, which is connected to the fresh air supply vent constructed on the outer casing of the air conditioner. The first fresh air outlet and the second fresh air outlet can be controlled to be switched on and off.

[0014] In some implementations...

[0015] The fresh air device also includes a switching baffle, and the first fresh air outlet and the second fresh air outlet share the switching baffle.

[0016] In some embodiments, the cabinet-type fresh air conditioner further includes:

[0017] A water collection tray is located inside the outer casing of the air conditioner and below the heat exchanger. The first fresh air outlet passes through the water collection tray and protrudes from the top side of the water collection tray.

[0018] In some implementations...

[0019] The fresh air device includes a fresh air volute and a fresh air volute cover. The fresh air volute and the fresh air volute cover are assembled to form a fresh air duct. A fresh air centrifugal impeller is assembled inside the fresh air duct. The first fresh air outlet and the second fresh air outlet are constructed on the fresh air duct, and the airflow direction of the first fresh air outlet and the second fresh air outlet is perpendicular to each other.

[0020] In some implementations...

[0021] The fresh air volute is also equipped with a fresh air inlet. The side of the fresh air volute cover away from the fresh air volute has an installation box structure. Part of the structure of the lower air outlet component of the cabinet-type fresh air air conditioner is assembled in the installation box structure. The fresh air volute, the fresh air volute cover and the lower air outlet component are arranged sequentially from back to front along the cabinet-type fresh air air conditioner.

[0022] In some implementations...

[0023] The fresh air inlet is located on the left and / or right side of the air inlet panel.

[0024] In some implementations...

[0025] The left and right symmetrical planes of the first fresh air outlet are coplanar with the left and right symmetrical center planes of the heat exchanger.

[0026] In some implementations...

[0027] The upper heat exchange section is inclined from bottom to top toward the upper air duct to form an airflow buffer space between the upper heat exchange section and the air inlet panel.

[0028] The cabinet-type fresh air air conditioner provided by this invention has the following beneficial effects:

[0029] Replacing the vertical heat exchanger (i.e., the heat exchanger extends in a straight line in the vertical direction) used in existing cabinet air conditioners with top and bottom air outlets with the heat exchanger in this application, whose lower heat exchange section is inclined towards the side closer to the lower air duct, can form an airflow accommodating space inside the air inlet panel to temporarily accommodate the fresh air delivered from the first fresh air outlet. This ensures that this fresh air can be conditioned at the heat exchanger before being delivered into the indoor space, without having to make the air inlet panel protrude outward at this position. This can reduce the overall footprint of the air conditioner, especially its thickness, and improve the appearance consistency and aesthetics of the air conditioner. At the same time, the fact that the fresh air is drawn into the heat exchanger and conditioned at the airflow accommodating space before being delivered into the indoor space can effectively prevent the phenomenon of reduced comfort after the introduction of fresh air due to excessive temperature difference between the fresh air and the indoor space.

[0030] Limiting the range of the relationship between V and Vx ensures that the fresh air delivered from the first fresh air outlet flows through the heat exchanger to the maximum extent for temperature regulation.

[0031] The airflow directions of the first and second fresh air outlets are perpendicular, allowing the switching baffle in this invention to be positioned between the two outlets. Switching the air outlets only requires controlling the switching baffle to deflect 90°, making control simple and the structure straightforward. It is understood that the aforementioned switching baffle can be connected to a first-step motor drive, which can rotate forward and reverse, thereby driving the switching baffle to switch between the first and second states.

[0032] The bottom air outlet component is mounted in a seated manner within the aforementioned mounting box structure. There is no need to design a connection structure between the bottom air outlet component and other mounting carrier components (such as air inlet panel and base), nor is there a need to consider the assembly operation space. At the same time, the fresh air volute, fresh air volute cover and bottom air outlet component are arranged sequentially from back to front along the cabinet-type fresh air air conditioner, and the structure is more compact, thereby making the cabinet-type air conditioner of the present invention thinner.

[0033] The upper heat exchange section is inclined from bottom to top toward the upper air duct to form an airflow buffer space between the upper heat exchange section and the air inlet panel. This space serves as part of the temporary storage space for indoor return air, preventing the indoor air inlet from being too close to the upper heat exchange section. The grille strips at the indoor air inlet have an adverse effect on the contact area between the airflow and the heat exchanger, thus ensuring the contact area between the indoor return airflow and the upper heat exchange section of the heat exchanger, thereby ensuring heat exchange efficiency. Attached Figure Description

[0034] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0035] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0036] Figure 1 This is a schematic diagram of the external structure of a cabinet-type fresh air air conditioner according to an embodiment of the present invention;

[0037] Figure 2 This is an exploded structural diagram of a cabinet-type fresh air air conditioner according to an embodiment of the present invention;

[0038] Figure 3 for Figure 1 Left side view of the cabinet-type fresh air conditioner in the middle;

[0039] Figure 4 for Figure 3 The cross-sectional view of AA shows the state of fresh air being supplied through the second fresh air outlet. The arrows in the view indicate the direction of the fresh air flow.

[0040] Figure 5 for Figure 3 The cross-sectional view of AA shows the state of fresh air being supplied through the first fresh air outlet. The arrows in the figure indicate the direction of the fresh air flow.

[0041] Figure 6 for Figure 1 A front view of a cabinet-type fresh air conditioner in the middle;

[0042] Figure 7 for Figure 6 The cross-sectional view of the middle BB shows the direction of airflow (fresh air and indoor return air supply).

[0043] The reference numerals in the attached figures are as follows:

[0044] 11. Air inlet panel; 111. Indoor air inlet; 112. Fresh air supply outlet; 113. Fresh air intake; 12. Decorative frame; 13. Front decorative panel; 14. Top cover of front decorative panel;

[0045] 2. Air outlet duct; 21. Upper air duct; 22. Lower air duct; 23. First volute; 24. Second volute;

[0046] 3. Heat exchanger; 31. Upper heat exchange section; 32. Lower heat exchange section;

[0047] 41. First fresh air outlet; 42. Second fresh air outlet; 43. Switching baffle; 431. First stepper motor; 441. Fresh air volute; 442. Fresh air volute cover; 443. Mounting box structure; 444. Volute cover; 45. Fresh air centrifugal impeller; 451. Second rotary motor;

[0048] 5. Water collection tray;

[0049] 6. Indoor centrifugal fan; 61. First rotary motor;

[0050] 100. Airflow containment space; 101. Airflow buffer space;

[0051] 201. Lower air outlet assembly; 202. Upper air outlet assembly; 2021. Second stepper motor;

[0052] 2022, Air guide plate; 2023, Air guide rod; 2024, Air outlet frame; 203, Base; 204, Heat exchanger bracket. Detailed Implementation

[0053] 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 some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0055] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0056] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0057] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0058] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0059] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0060] See also Figure 1 and Figure 7 As shown, according to an embodiment of the present invention, a cabinet-type fresh air air conditioner is provided, comprising:

[0061] An air conditioner housing (not labeled in the figure) includes an air inlet panel 11, a decorative frame 12, and a front decorative panel 13. The air inlet panel 11, the decorative frame 12, and the front decorative panel 13 are assembled adjacent to each other from back to front in the air conditioner's operating state to form the air conditioner housing. An indoor air inlet 111 is constructed on the air inlet panel 11.

[0062] The air outlet duct 2 is located inside the outer casing of the air conditioner. Specifically, it is formed by the interlocking assembly of the first volute 23 and the second volute 24. The air outlet duct 2 includes an upwardly extending upper air duct 21 and a downwardly extending lower air duct 22. An indoor centrifugal fan 6 is provided inside the air outlet duct 2. It is understood that the indoor centrifugal fan 6 is located at the junction of the upper air duct 21 and the lower air duct 22. Thus, the indoor centrifugal fan 6 (driven by the first rotary motor 61) can draw in air from the indoor air inlet 111 and send it out through the upper air duct 21 and the lower air duct 22, thereby realizing the air conditioner's up and down air outlet mode.

[0063] A heat exchanger 3 is disposed between the air inlet panel 11 and the air outlet duct 2 for regulating the temperature (heating or cooling) of the air passing through it. The heat exchanger 3 has an upper heat exchange section 31 and a lower heat exchange section 32. The connection position of the upper heat exchange section 31 and the lower heat exchange section 32 corresponds to the position of the indoor centrifugal fan 6. The lower heat exchange section 32 is inclined from top to bottom toward the lower air duct 22 to form an airflow accommodating space 100 between the lower heat exchange section 32 and the air inlet panel 11.

[0064] The fresh air device is located inside the air conditioner housing and has a first fresh air outlet 41. Fresh air delivered from the first fresh air outlet 41 can enter the airflow accommodating space 100. In a preferred embodiment, the aforementioned first fresh air outlet 41 is at least partially (e.g., at the outlet location) located within the airflow accommodating space 100.

[0065] In this technical solution, the vertical heat exchanger (i.e., the heat exchanger extends in a straight line in the vertical direction) used in the existing cabinet air conditioner with air outlets at the top and bottom is replaced with the heat exchanger 3 in this application, which has a lower heat exchange section 32 that is inclined towards the side near the lower air duct 22. This can form an airflow accommodating space 100 on the inner side of the air inlet panel 11 to temporarily accommodate the fresh air sent out by the first fresh air outlet 41. This ensures that this fresh air can be conditioned at the heat exchanger 3 before being sent into the indoor space, without having to make the air inlet panel 11 protrude outward at this position. This can reduce the overall volume of the air conditioner, especially its thickness, and improve the appearance consistency and aesthetics of the air conditioner. At the same time, the fact that the fresh air is drawn into the heat exchanger 3 at the airflow accommodating space 100 and then conditioned before being sent into the indoor space can effectively prevent the phenomenon of reduced comfort after the introduction of fresh air due to excessive temperature difference between the fresh air and the indoor space. It is understandable that, since the fresh air delivered from the first fresh air outlet 41 can be temporarily stored in the airflow containment space 100, it can ensure that this part of the fresh air is flowed through the heat exchanger 3 to the maximum extent and thus be regulated in temperature.

[0066] Furthermore, in order to ensure that the fresh air delivered from the first fresh air outlet 41 flows through the heat exchanger 3 for temperature regulation to the maximum extent, in a preferred embodiment, the maximum fresh air discharge of the fresh air device is Vx. Specifically, Vx refers to the air volume of the fresh air device in 1 hour (i.e., 1h), and the volume of the airflow accommodating space 100 is V. Vx ≤ V*1h. In this technical solution, in order to prevent too much fresh air from being introduced and escaping from this point without flowing through the heat exchanger 3, it is required that Vx ≤ V*1h, that is, the gas volume passing through the airflow accommodating space 100 in 1 hour cannot exceed Vx.

[0067] See also Figure 2 and Figure 4 In some embodiments, the fresh air device further has a second fresh air outlet 42, which is connected to a fresh air inlet 112 constructed on the air conditioner housing, and the first fresh air outlet 41 and the second fresh air outlet 42 can be controlled to be switched on and off.

[0068] In this technical solution, the fresh air device has both a first fresh air outlet 41 and a second fresh air outlet 42, which enables the air conditioner in this invention to have the dual functions of introducing fresh air directly into the indoor space or exchanging heat with the heat exchanger 3 and adjusting the temperature before sending it into the indoor space, thus meeting the requirements for fresh air volume and fresh air comfort.

[0069] The aforementioned first fresh air outlet 41 and second fresh air outlet 42 can each be equipped with an on / off valve that can control their opening and closing. By controlling the opening and closing of the on / off valves at the corresponding positions, the control of whether or not air enters the corresponding fresh air outlet can be achieved. In a preferred embodiment, the fresh air device further includes a switching baffle 43, which is shared by the first fresh air outlet 41 and the second fresh air outlet 42. Specifically, the switching baffle 43 has a first state of blocking the first fresh air outlet 41 while allowing the second fresh air outlet 42 to pass through (e.g., Figure 4 (as shown) and the second state of blocking the second fresh air outlet 42 while opening the first fresh air outlet 41 (as shown) Figure 5 As shown in the figure, this simplifies the structure of the fresh air device and reduces manufacturing costs.

[0070] In some embodiments, the cabinet-type fresh air air conditioner further includes a water collection tray 5, which is located inside the air conditioner casing and below the heat exchanger 3. A first fresh air outlet 41 penetrates the water collection tray 5 and protrudes from its top side. In this technical solution, the water collection tray 5 is used to collect condensate from the heat exchanger 3 and discharge the collected condensate. Simultaneously, it provides support to the bottom of the heat exchanger 3. The first fresh air outlet 41, penetrating the water collection tray 5 and protruding from its top side, prevents condensate from entering the first fresh air outlet 41 and subsequently into the fresh air unit. The aforementioned water collection tray 5 can be fixedly connected to the inner wall of the air inlet panel 11.

[0071] See details Figure 2 As shown, the fresh air device includes a fresh air volute 441 and a fresh air volute cover 442. The fresh air volute 441 and the fresh air volute cover 442 are assembled to form a fresh air duct. A fresh air centrifugal impeller 45 is assembled inside the fresh air duct and is driven to rotate by a second rotary motor 451. The first fresh air outlet 41 and the second fresh air outlet 42 are constructed on the fresh air duct, and the airflow directions of the first fresh air outlet 41 and the second fresh air outlet 42 are perpendicular to each other.

[0072] In this technical solution, the airflow directions of the first fresh air outlet 41 and the second fresh air outlet 42 are perpendicular, allowing the switching baffle 43 to be positioned between the two outlets. Switching the air outlets only requires controlling the switching baffle 43 to deflect 90°, making control simple and the structure straightforward. It is understood that the aforementioned switching baffle 43 can be driven by a first stepper motor 431, which can rotate forward and reverse, thereby driving the switching baffle 43 to switch between the first and second states.

[0073] The fresh air volute 441 also has a fresh air inlet (not indicated in the figure), see [reference]. Figure 2As shown, a volute cover 444 with an inlet can be assembled at the fresh air inlet. A fresh air inlet 113 corresponding to the aforementioned inlet is constructed on the corresponding air inlet panel 11. A mounting box structure 443 is formed on the side of the fresh air volute cover 442 away from the fresh air volute 441. Part of the lower air outlet assembly 201 of the cabinet-type fresh air air conditioner is assembled within the mounting box structure 443. The fresh air volute 441, the fresh air volute cover 442, and the lower air outlet assembly 201 are arranged sequentially from back to front along the cabinet-type fresh air air conditioner. Specifically, the mounting box structure 443 is a limiting groove structure with openings both upwards and forwards (referring to the air conditioner's orientation). That is, it has a vertical limiting baffle at the forward opening position to limit the horizontal displacement of the lower air outlet assembly 201.

[0074] In this technical solution, the aforementioned lower air outlet component 201 is mounted in the aforementioned mounting box structure 443 in a seated manner. There is no need to design a connection structure between the lower air outlet component 201 and other mounting carrier components (such as the air inlet panel 11 and the base 203), nor is there a need to consider the assembly operation space. At the same time, the fresh air volute 441, the fresh air volute cover 442, and the lower air outlet component 201 are arranged sequentially from back to front along the cabinet-type fresh air air conditioner, and the structure is more compact, thereby making the cabinet-type air conditioner of the present invention thinner.

[0075] See also Figure 1 and Figure 2 As shown, in some embodiments, the fresh air outlet 112 is located on the left and / or right side of the air inlet panel 11. That is, the air inlet panel 11 in this invention has portions on the left and right sides of the air conditioner. In this case, the fresh air outlet 112 is constructed on the left and / or right side portions, thereby making the air delivery distance of the fresh air portion directly supplied into the indoor space longer and improving the indoor air quality more quickly.

[0076] In some embodiments, the left and right symmetrical planes of the first fresh air outlet 41 are coplanar with the left and right symmetrical center planes of the heat exchanger 3. This allows the fresh air delivered from the first fresh air outlet 41 to be delivered more evenly to the left and right sides of the lower section of the heat exchanger 3, ensuring efficient heat exchange of the fresh air.

[0077] In a preferred embodiment, the first fresh air outlet 41 is tilted or bent toward the heat exchanger 3, and the top sidewall of the first fresh air outlet 41 is closer to the heat exchanger 3 than the bottom sidewall. This allows the top sidewall of the first fresh air outlet 41 to form a shielding brim structure, which can prevent condensate formed on the heat exchanger 3 from falling into the first fresh air outlet 41.

[0078] See Figure 7As shown, the upper heat exchange section 31 is inclined from bottom to top towards the upper air duct 21 to form an airflow buffer space 101 between the upper heat exchange section 31 and the air inlet panel 11. This space serves as part of the temporary storage space for indoor return air, preventing the indoor air inlet 111 from being too close to the upper heat exchange section 31. The grille strips at the indoor air inlet 111 do not adversely affect the contact area between the airflow and the heat exchanger 3, thus ensuring the contact area between the indoor return airflow and the upper heat exchange section 31 of the heat exchanger 3, thereby ensuring heat exchange efficiency. It is understood that the heat exchanger 3 at this time has a V-shaped appearance, and the opening of the V-shape faces the air outlet duct 2.

[0079] See details Figure 2 As shown, a heat exchanger bracket 204 is also provided inside the air conditioner casing, which is connected to the top of the inner side of the air inlet panel 11, and the top of the heat exchanger 3 is reliably connected to the heat exchanger bracket 204.

[0080] The air outlet duct 2 is also connected to the inner wall of the air inlet panel 11. As mentioned above, the outlet of the lower air duct 22 is connected to the lower air outlet assembly 201, and the outlet of the upper air duct 21 is connected to the upper air outlet assembly 202 to realize the air outlet of the air conditioner's vertical sweeping range. The aforementioned upper air outlet assembly 202 includes an air outlet frame 2024, which is partially supported at the top opening of the decorative frame 12. The air outlet frame 2024 is a hollow structure that runs vertically through the air outlet. The bottom end of the hollow structure is connected to the upper air duct 21, and the top end is connected to an air guide assembly. The air guide assembly specifically includes multiple air guide plates 2022 and a second stepper motor 2021 that drives the multiple air guide plates 2022 to synchronously adjust the airflow through the air guide connecting rod 2023.

[0081] The aforementioned front decorative panel 13 is the side of the air conditioner facing the user, which enhances the appearance of the air conditioner. The top of the front decorative panel is provided with a front decorative panel cover 14, which is used to seal the gap between the air outlet frame 2024 and the front decorative panel 13 to prevent external debris, dust and other objects from entering the air conditioner.

[0082] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A cabinet-type fresh air air conditioner, characterized in that, include: An air conditioner housing, the air conditioner housing including an air inlet panel (11), the air inlet panel (11) having an indoor air inlet (111). The air outlet duct (2) is located inside the air conditioner casing and includes an upward-extending upper air duct (21) and a downward-extending lower air duct (22). An indoor centrifugal fan (6) is installed inside the air outlet duct (2). A heat exchanger (3) is disposed between the air inlet panel (11) and the air outlet duct (2), and the heat exchanger (3) has an upper heat exchange section (31) and a lower heat exchange section (32). The connection position of the upper heat exchange section (31) and the lower heat exchange section (32) corresponds to the position of the indoor centrifugal fan (6), and the lower heat exchange section (32) is inclined from top to bottom toward the lower air duct (22) to form an airflow accommodating space (100) between the lower heat exchange section (32) and the air inlet panel (11). The fresh air device is located inside the air conditioner casing and has a first fresh air outlet (41). The fresh air delivered from the first fresh air outlet (41) can enter the airflow accommodating space (100). It also includes: a water receiving tray (5), which is located inside the air conditioner housing and below the heat exchanger (3), the first fresh air outlet (41) penetrates the water receiving tray (5) and protrudes from the top side of the water receiving tray (5), the first fresh air outlet (41) is inclined or bent towards the heat exchanger (3), and the top side wall of the first fresh air outlet (41) is closer to the heat exchanger (3) than the bottom side wall, so that the top side wall of the first fresh air outlet (41) forms a shielding brim structure, and the first fresh air outlet (41) is completely inside the air conditioner housing.

2. The cabinet-type fresh air air conditioner according to claim 1, characterized in that, The maximum fresh air displacement of the fresh air device is Vx, and the volume of the airflow accommodating space (100) is V, where Vx ≤ V*1h.

3. The cabinet-type fresh air air conditioner according to claim 1, characterized in that, The fresh air device also has a second fresh air outlet (42), which is connected to the fresh air inlet (112) constructed on the outer casing of the air conditioner. The first fresh air outlet (41) and the second fresh air outlet (42) can be controlled to be switched on and off.

4. The cabinet-type fresh air air conditioner according to claim 3, characterized in that, The fresh air device also includes a switching baffle (43), and the first fresh air outlet (41) and the second fresh air outlet (42) share the switching baffle (43).

5. The cabinet-type fresh air air conditioner according to claim 4, characterized in that, The fresh air device includes a fresh air volute (441) and a fresh air volute cover (442). The fresh air volute (441) and the fresh air volute cover (442) are assembled to form a fresh air duct. A fresh air centrifugal impeller (45) is assembled inside the fresh air duct. The first fresh air outlet (41) and the second fresh air outlet (42) are constructed on the fresh air duct, and the airflow directions of the first fresh air outlet (41) and the second fresh air outlet (42) are perpendicular to each other.

6. The cabinet-type fresh air air conditioner according to claim 5, characterized in that, The fresh air volute (441) is also provided with a fresh air inlet. The fresh air volute cover (442) has an installation box structure (443) on the side away from the fresh air volute (441). Part of the structure of the lower air outlet component (201) of the cabinet-type fresh air air conditioner is assembled in the installation box structure (443). The fresh air volute (441), the fresh air volute cover (442) and the lower air outlet component (201) are arranged sequentially from back to front along the cabinet-type fresh air air conditioner.

7. The cabinet-type fresh air air conditioner according to claim 3, characterized in that, The fresh air inlet (112) is located on the left and / or right side of the air inlet panel (11).

8. The cabinet-type fresh air air conditioner according to claim 1, characterized in that, The left and right symmetrical planes of the first fresh air outlet (41) are coplanar with the left and right symmetrical center planes of the heat exchanger (3).

9. The cabinet-type fresh air air conditioner according to claim 1, characterized in that, The upper heat exchange section (31) is inclined from bottom to top toward the upper air duct (21) to form an airflow buffer space (101) between the upper heat exchange section (31) and the air inlet panel (11).

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