Air conditioner indoor unit

Abstract

The application relates to the technical field of household electrical appliances, in particular to an indoor air conditioner. The indoor air conditioner comprises a machine shell, an air conditioner air inlet, an air conditioner air outlet, a fresh air inlet and a fresh air outlet are arranged on the machine shell, a heat treatment module, a fresh air module, a first annular protrusion, a second annular protrusion, the second annular protrusion is arranged on the machine shell and surrounds the periphery of the first annular protrusion, the second annular protrusion comprises an outer protruding ring and an inner retracting ring, and the machine shell is further provided with a communication hole which respectively communicates with the fresh air module and the annular cavity; wherein the first distance between the end, away from the machine shell, of the outer protruding ring and the free end, along the axial direction of the fresh air outlet, gradually decreases in the direction from the first point to the second point on the end, away from the machine shell, of the outer protruding ring. The indoor air conditioner provided by the application has relatively uniform air outlet at each position of the fresh air outlet, and the use experience is better.

Description

Technical Field

[0001] This application relates to the field of home appliance technology, and more particularly to an indoor unit of an air conditioner. Background Technology

[0002] Air conditioner indoor units, as the most common household appliances, are ubiquitous in every home. In recent years, people have desired air conditioner indoor units to not only regulate indoor temperature but also provide fresh air intake. Therefore, related technologies typically incorporate both air conditioning outlets and fresh air outlets on the indoor unit's casing to regulate indoor temperature and provide fresh air, respectively. However, in actual use, uneven airflow from the fresh air outlets at different locations leads to a subpar user experience. Utility Model Content

[0003] This application discloses an indoor air conditioning unit that can make the airflow at various locations of the fresh air outlet more uniform, resulting in a better user experience.

[0004] To achieve the above objectives, this application discloses an indoor air conditioning unit, comprising:

[0005] The housing is provided with an air conditioning inlet, an air conditioning outlet, a fresh air inlet, and a fresh air outlet.

[0006] A heat treatment module is disposed inside the housing and is used to draw air from outside the housing into the housing through the air conditioner inlet for heat exchange, and blow the heat-exchanged air out of the housing through the air conditioner outlet.

[0007] The fresh air module is disposed inside the housing and is connected to the fresh air inlet and the fresh air outlet respectively. It is used to purify the air entering the fresh air module through the fresh air inlet to obtain fresh air, and blow the fresh air out through the fresh air outlet.

[0008] A first annular protrusion is provided on the housing surrounding the air conditioner outlet;

[0009] The second annular protrusion is disposed on the housing around the periphery of the first annular protrusion, so as to form the fresh air outlet with the first annular protrusion;

[0010] The second annular protrusion includes:

[0011] An outer convex ring is disposed on the housing surrounding the periphery of the first annular protrusion;

[0012] An inner ring surrounds the periphery of the first annular protrusion and is located on the side of the outer protrusion closer to the first annular protrusion. The connecting end of the inner ring is connected to the end of the outer protrusion away from the housing, and the free end is spaced apart from the housing, so that an annular cavity is formed between the inner ring and the outer protrusion.

[0013] The housing is also provided with a connecting hole that connects the fresh air module and the annular cavity respectively, so that fresh air enters the annular cavity from the fresh air module through the connecting hole, and flows out of the housing from the annular cavity through the fresh air outlet;

[0014] Wherein, the end of the outer convex ring away from the housing and the free end are at a first distance along the axial direction of the fresh air outlet. The end of the outer convex ring away from the housing has a first point close to the connecting hole and a second point away from the connecting hole. The first distance gradually decreases along the direction from the first point to the second point.

[0015] Since the first annular protrusion is arranged around the air conditioner outlet on the housing, and the second annular protrusion is arranged around the outer periphery of the first annular protrusion on the housing, forming a fresh air outlet with the first annular protrusion, the fresh air outlet can surround the air conditioner outlet. When the fresh air outlet surrounds the air conditioner outlet, on the one hand, the air delivery distance of the fresh air can be increased, and on the other hand, the fresh air can be mixed with the air conditioner air, so that the temperature of the mixed air can be more uniform.

[0016] In addition, by setting the second annular protrusion on the casing and surrounding the periphery of the first annular protrusion, a fresh air outlet can be formed between the second annular protrusion and the first annular protrusion. The implementation method is very simple and can reduce the cost of the fresh air outlet.

[0017] Furthermore, by making the first distance gradually smaller along the direction from the first point to the second point, the width of the gap between the free end and the casing gradually increases along the direction from the first point to the second point. In this way, the air resistance of the gap to the fresh air gradually decreases along the direction from the first point to the second point. Thus, even if the airflow of the fresh air gradually decreases along the direction from the first point to the second point, the air resistance of the gap to the fresh air will also gradually decrease as the direction moves away from the connecting hole. This makes the fresh air volume at each position through the gap approximately equal, thereby making the airflow at each position of the fresh air outlet more uniform and improving the user experience.

[0018] Optionally, the housing is provided with a countersunk hole, and the bottom of the countersunk hole is provided with a first opening surrounding the air conditioner outlet, and the periphery of the first opening is provided with a first annular protrusion.

[0019] The outer protruding ring is provided around the periphery of the countersunk hole, and the free end is spaced apart from the bottom of the hole.

[0020] By providing a first opening at the bottom of the countersunk hole and a first annular protrusion around the periphery of the first opening, the height of the first annular protrusion protruding out of the casing can be kept relatively low when the height of the first annular protrusion along the depth direction of the countersunk hole is constant. This reduces the possibility of the first annular protrusion being easily damaged due to excessive protrusion out of the casing, thereby making the entire air conditioner indoor unit more durable.

[0021] Optionally, the connecting hole is disposed on the peripheral wall of the countersunk hole portion.

[0022] Since the connecting hole is located on the peripheral wall of the countersunk hole, it avoids occupying space on the casing, such as the front of the front casing, thus improving the integrity of the front of the casing.

[0023] Optionally, the connecting hole is located at the end of the fresh air outlet facing the fresh air module.

[0024] By positioning the connecting hole at the end of the fresh air outlet facing the fresh air module, the connecting hole can be placed closer to the fresh air module. This reduces the air resistance encountered by the fresh air as it flows from the fresh air module through the fresh air duct to the connecting hole, thereby increasing the airflow volume of the fresh air blown out through the fresh air outlet to a certain extent.

[0025] Optionally, the height of the fresh air outlet in the vertical direction is higher than that of the fresh air module.

[0026] By positioning the fresh air outlet vertically higher than the fresh air module, the lower part of the indoor unit can be used to house the fresh air module, while the higher part can be used for the fresh air outlet. This has two advantages: firstly, it makes the bottom of the indoor unit relatively heavier, improving its stability and reducing the likelihood of it tipping over; secondly, it allows fresh air to be blown through the outlet to a higher position in the room, helping users breathe fresh air and thus improving the user experience.

[0027] Optionally, along the axial direction of the fresh air outlet, the first annular protrusion protrudes beyond the second annular protrusion; and / or, along the axial direction of the fresh air outlet, the first annular protrusion is flush with the second annular protrusion.

[0028] By making the first annular protrusion protrude beyond the second annular protrusion, the first annular protrusion can better guide the air conditioning air blown out of the air conditioning vent, thereby enabling the air conditioning air to be delivered to a farther place.

[0029] By making the first annular protrusion and the second annular protrusion flush, the structure formed by the first annular protrusion and the second annular protrusion together can be made more regular overall. On the one hand, it can improve the appearance of the air conditioner indoor unit. On the other hand, it can avoid the situation where one of the first annular protrusion and the second annular protrusion is too prominent and easily damaged by impact, so that the structure formed by the first annular protrusion and the second annular protrusion together has stronger mechanical strength.

[0030] Optionally, the housing includes:

[0031] The outer shell, which encloses to form an inner cavity; and,

[0032] The mounting plate is disposed within the inner cavity, the air conditioning outlet is disposed on the mounting plate, and the fresh air outlet is disposed on the outer shell.

[0033] Since the air conditioning outlet is located on the mounting plate and the fresh air outlet is located on the outer casing, the air conditioning outlet and the fresh air outlet can be located on different parts of the casing. In this way, compared with the method of setting both the air conditioning outlet and the fresh air outlet on the same part of the casing, it can avoid the situation where the strength of the component is drastically reduced due to the air conditioning outlet and the fresh air outlet being concentrated on the same part.

[0034] On the other hand, it can also avoid the situation where the layout of the air conditioning vents and fresh air vents is too cramped. Furthermore, it can make the air conditioning vents and fresh air vents more structurally separate, thus making the fresh air vents more conspicuous and further improving their visibility.

[0035] Optionally, the housing further includes:

[0036] An enclosure plate is disposed within the inner cavity and is horizontally spaced from the mounting plate. The enclosure plate and the outer shell enclose each other to form a fresh air duct, which is connected to the fresh air module and the connecting hole respectively.

[0037] As can be seen, the fresh air duct is formed by the enclosure panel and the casing together. That is, the fresh air duct can be formed by cleverly utilizing the existing structure of the casing and the enclosure panel. There is no need to add too many parts to form the fresh air duct. The formation method of the fresh air duct is very simple, which can simplify the structure of the air conditioner indoor unit and reduce the cost of the air conditioner indoor unit.

[0038] Optionally, along the direction from the air conditioner vent to the fresh air vent, at least a portion of the inner diameter of the first annular protrusion gradually increases.

[0039] By gradually increasing the inner diameter of the first annular protrusion along the direction from the air conditioner vent to the fresh air vent, the air resistance of the first annular protrusion to the air conditioner air blown out through the air conditioner vent can be reduced, thereby allowing the air conditioner air to be delivered to a farther place.

[0040] Optionally, the fresh air outlet is annular.

[0041] When the fresh air outlet is circular, the distance between each point of the fresh air outlet and the air conditioning outlet can be minimized while maintaining a fixed total outlet area. This ensures that all fresh air exiting the fresh air outlet receives support from the air conditioning air outlet, maximizing the distance the fresh air travels. It also results in more even mixing of the air conditioning and fresh air. Furthermore, it reduces the manufacturing complexity of the fresh air outlet.

[0042] Compared with the prior art, the beneficial effects of this application are as follows:

[0043] In this application, since the first annular protrusion is disposed around the air conditioner outlet on the housing, and the second annular protrusion is disposed around the periphery of the first annular protrusion on the housing, so as to form a fresh air outlet with the first annular protrusion, the fresh air outlet can surround the air conditioner outlet. When the fresh air outlet surrounds the air conditioner outlet, on the one hand, the air delivery distance of the fresh air can be increased, and on the other hand, the fresh air can be mixed with the air conditioner air, so that the temperature of the mixed air can be more uniform.

[0044] In addition, by setting the second annular protrusion on the casing and surrounding the periphery of the first annular protrusion, a fresh air outlet can be formed between the second annular protrusion and the first annular protrusion. The implementation method is very simple and can reduce the cost of the fresh air outlet.

[0045] Furthermore, by making the first distance gradually smaller along the direction from the first point (a point near the connecting hole on the end of the outer convex ring away from the casing) to the second point (a point away from the connecting hole on the end of the outer convex ring away from the casing), the width of the gap between the free end and the casing gradually increases along the direction from the first point to the second point. In this way, the air resistance of the gap to the fresh air gradually decreases along the direction from the first point to the second point. Thus, even though the airflow of the fresh air gradually decreases along the direction from the first point to the second point, the air resistance of the gap to the fresh air also gradually decreases as it moves away from the connecting hole. This makes the fresh air volume at each position through the gap approximately equal, thereby making the airflow at each position of the fresh air outlet more uniform and improving the user experience. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments 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 these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the structure of an air conditioner indoor unit according to an embodiment of this application;

[0048] Figure 2 yes Figure 1 A structural schematic diagram of a central air conditioning indoor unit from another perspective;

[0049] Figure 3 yes Figure 1 A structural schematic diagram of the indoor unit of an air conditioner from another perspective;

[0050] Figure 4 yes Figure 2 An exploded view of a central air conditioning indoor unit;

[0051] Figure 5 yes Figure 3 Cross-sectional view at position AA;

[0052] Figure 6 yes Figure 1 Another exploded view of the indoor unit of a central air conditioner;

[0053] Figure 7 yes Figure 5 A magnified view of a section at position B in the middle;

[0054] Figure 8 yes Figure 6 An exploded view of the middle anterior shell;

[0055] Figure 9 yes Figure 6 Another exploded view of the middle anterior shell;

[0056] Figure 10 yes Figure 9 A schematic diagram of the structure after the front shell is disassembled and decomposed.

[0057] Figure 11 yes Figure 9 A schematic diagram of the structure of the second annular protrusion in the middle;

[0058] Figure 12 yes Figure 3 A cross-sectional view of the front shell at position AA;

[0059] Figure 13 yes Figure 11 A schematic diagram of the structure of the second annular protrusion from another perspective.

[0060] Explanation of reference numerals in the attached figures:

[0061] 1-Housing; 10-Inner cavity; 11-Air conditioning inlet; 12-Air conditioning outlet; 13-Fresh air inlet; 14-Fresh air outlet; 15-Outer shell; 151-Front shell; 152-Rear shell; 16-Mounting plate; 17-Enclosure plate; 18-Counterhead; 181-Connecting hole; 182-Bottom of hole; 1821-First opening; 1821a-First annular protrusion; 183-Second annular protrusion; 1830-Gap; 1831-Outer convex ring; 1832-Inner constricting ring; 1832a-Free end; 1832b-First point; 1832c-Second point; 1833-Annular cavity;

[0062] 2-Heat treatment module; 21-Heat exchanger;

[0063] 3-Fresh air module; 31-Fresh air duct; 32-Fresh air handling components; 321-Volume housing; 322-Fresh air fan;

[0064] 100 - Air conditioner indoor unit;

[0065] L - First distance. Detailed Implementation

[0066] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0067] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0068] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0069] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0070] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0071] Before explaining the technical solution of this application, the background technology of this application shall be explained first.

[0072] Air conditioner indoor units, as the most common household appliances, are ubiquitous in every home. In recent years, people have desired air conditioner indoor units to not only regulate indoor temperature but also provide fresh air intake. Therefore, related technologies typically incorporate air conditioning outlets and fresh air outlets on the casing of the indoor unit to respectively regulate indoor temperature and provide fresh air. However, in actual use, uneven airflow from the fresh air outlets at different locations leads to a poor user experience. Therefore, this application provides a novel air conditioner indoor unit to address these issues.

[0073] The technical solution of this application will be further described below with reference to specific embodiments and accompanying drawings.

[0074] Figure 1 This is a structural schematic diagram of an air conditioner indoor unit 100 provided in one embodiment of this application. Figure 2 yes Figure 1 A structural schematic diagram of the indoor unit 100 of the air conditioner from another perspective. Figure 3 yes Figure 1 A structural schematic diagram of the indoor unit 100 of the air conditioner from another perspective. Figure 4 yes Figure 2 An exploded view of a central air conditioning indoor unit 100.

[0075] See Figure 1 and Figure 2 The indoor unit of the air conditioner 100 includes a housing 1, on which an air conditioner air inlet 11, an air conditioner air outlet 12, a fresh air inlet 13, and a fresh air outlet 14 are provided.

[0076] By setting an air conditioning inlet 11 and an air conditioning outlet 12 on the housing 1, preparations can be made for the subsequent intake of air into the housing 1 through the air conditioning inlet 11 for heat exchange, and the air after heat exchange being blown out of the housing 1 through the air conditioning outlet 12.

[0077] Similarly, by setting a fresh air inlet 13 and a fresh air outlet 14 on the housing 1, preparations can be made for the subsequent intake of air into the housing 1 through the fresh air inlet 13 for processing to obtain fresh air, and for the fresh air to be blown out of the housing 1 through the fresh air outlet 14.

[0078] The casing 1 can be made of plastic, metal, or any other possible material; this embodiment does not limit this. Furthermore, the shapes of the air conditioning inlet 11, air conditioning outlet 12, fresh air inlet 13, and fresh air outlet 14 can be circular, square, or any other possible shape; this embodiment does not limit this.

[0079] To prevent dust in the air from entering the housing 1 through the air inlet 11 during heat exchange and contaminating the components inside the housing 1, in some embodiments, see... Figure 2 A filter screen can be installed on the air inlet 11 of the air conditioner.

[0080] When a filter screen is installed on the air inlet 11 of the air conditioner, the filter screen can filter out or at least partially filter out dust in the air, thereby preventing dust in the air from entering the casing 1 through the air inlet 11, thus preventing the components inside the casing 1 from being contaminated, and making the indoor unit 100 of the air conditioner more durable.

[0081] In some embodiments, see Figure 4 The indoor unit 100 of the air conditioner also includes a heat treatment module 2, which is disposed inside the housing 1. Specifically, the heat treatment module 2 includes an air conditioner fan and a heat exchanger 21. The air conditioner fan is disposed inside the housing 1 and is used to draw air from outside the housing 1 into the housing 1 through the air conditioner inlet 11. The heat exchanger 21 is disposed inside the housing 1 and is used to exchange heat with the air drawn into the housing 1. The air conditioner fan is also used to blow the air after heat exchange out of the housing 1 through the air conditioner outlet 12.

[0082] Since the air conditioner fan and heat exchanger 21 are both located inside the housing 1, when the air conditioner fan draws air from outside the housing 1 into the housing 1 through the air conditioner inlet 11, the air drawn into the housing 1 can come into contact with the heat exchanger 21. When the air drawn into the housing 1 comes into contact with the heat exchanger 21, the heat exchanger 21 can exchange heat with the air, thereby causing the temperature of the air to change.

[0083] After the heat exchanger 21 exchanges heat with the air inside the intake casing 1, the air conditioner fan can blow the heat-exchanged air out of the casing 1 through the air conditioner outlet 12 and into the room, thereby achieving the purpose of heating or cooling the room, so that the indoor unit 100 of the air conditioner has the function of heating or cooling.

[0084] As can be seen, when the air conditioner indoor unit 100 also includes a heat treatment module 2, the air conditioner indoor unit 100 can have the function of heating or cooling, thereby changing the indoor temperature and improving the user's home comfort.

[0085] The heat exchanger 21 mentioned above can be a condenser or an electric heating wire, etc., and this embodiment does not limit it.

[0086] The aforementioned air conditioning fan can be an axial flow fan or a centrifugal fan, etc., and this embodiment does not limit it.

[0087] In some embodiments, see Figure 4 and Figure 5 , Figure 5 yes Figure 3 The cross-sectional view at position AA shows that the indoor unit 100 of the air conditioner also includes a fresh air module 3. The fresh air module 3 is disposed inside the casing 1 and is connected to the fresh air inlet 13 and the fresh air outlet 14 respectively. It is used to purify the air entering the fresh air module 3 through the fresh air inlet 13 to obtain fresh air, and blow the fresh air out through the fresh air outlet 14.

[0088] Specifically, a fresh air duct 31 can be formed inside the housing 1, and the fresh air module 3 can include a fresh air handling component 32, wherein the first end of the fresh air duct 31 ( Figure 5 The top of the fresh air duct 31 is connected to the fresh air outlet 14.

[0089] The fresh air handling component 32 is disposed inside the housing 1 and is connected to the second end of the fresh air duct 31. Figure 5 The bottom end of the fresh air duct 31 is connected to the fresh air inlet 13. The fresh air handling component 32 is used to purify the air entering itself through the fresh air inlet 13 to obtain fresh air, and blow the fresh air out through the fresh air duct 31 and the fresh air outlet 14.

[0090] Since the fresh air handling unit 32 is connected to the fresh air inlet 13, air can enter the fresh air handling unit 32 through the fresh air inlet 13. When air enters the fresh air handling unit 32 through the fresh air inlet 13, the fresh air handling unit 32 can purify the air entering it through the fresh air inlet 13 to obtain fresh air. Specifically, the fresh air handling unit 32 can filter the air to obtain fresh air.

[0091] After the fresh air handling component 32 filters the air to obtain fresh air, since the fresh air handling component 32 is also connected to the second end of the fresh air duct 31, the fresh air can enter the fresh air duct 31 through the second end of the fresh air duct 31, and can enter the fresh air outlet 14 through the first end of the fresh air duct 31 and be blown out through the fresh air outlet 14, thereby achieving the purpose of providing fresh air to the room.

[0092] It is evident that when the indoor unit 100 of the air conditioner also includes a fresh air module 3, it can provide fresh air to the room, thereby improving the indoor air quality, which in turn makes the user's home experience better and is more conducive to the user's health.

[0093] In addition, when the air conditioner indoor unit 100 also includes a fresh air module 3, the air conditioner indoor unit 100 can not only have the functions of heating and cooling, but also have a fresh air function. One device integrates multiple functions, with a higher degree of integration. Compared with the method of achieving the above functions through multiple devices in related technologies, on the one hand, it can reduce the total floor space of the equipment and save indoor space, and on the other hand, it can also reduce the total purchase cost.

[0094] Among them, see Figure 4 and Figure 5 The aforementioned fresh air treatment component 32 may include a volute 321, a filter element (not shown in the figure), and a fresh air fan 322. The volute 321 is disposed inside the housing 1 and is connected to the second end of the fresh air inlet 13 and the fresh air duct 31, respectively. The filter element and the fresh air fan 322 are disposed inside the volute 321. In this way, when the fresh air fan 322 is activated, air can be drawn through the fresh air inlet 13 and passed through the filter element. The filter element can purify the air passing through it to obtain fresh air. Finally, the fresh air can be blown out through the fresh air duct 31 and the fresh air outlet 14.

[0095] In some embodiments, the fresh air inlet 13 can be connected to the outside through a duct. In this way, the fresh air handling component 32 can draw in outdoor air, process it to obtain fresh air, and blow the fresh air into the room, thereby replenishing oxygen in the room and reducing the indoor carbon dioxide concentration.

[0096] In some embodiments, see Figure 1 and Figure 3 Fresh air outlet 14 surrounds air conditioning outlet 12.

[0097] Since the fresh air outlet 14 surrounds the air conditioner outlet 12, the air conditioner air blown out of the air conditioner outlet 12 can accelerate the fresh air blown out of the fresh air outlet 14, allowing the fresh air to reach farther places with the help of the air conditioner air. This increases the delivery distance of the fresh air and the coverage area of ​​the fresh air, resulting in a better user experience for the indoor unit of the air conditioner.

[0098] As can be seen, by arranging the fresh air outlet 14 around the air conditioner outlet 12, even if the air velocity of the fresh air blown out by the fresh air outlet 14 is limited, the air delivery distance of the fresh air can be increased with the help of the air conditioner air blown out by the air conditioner outlet 12. There is no need to increase the horsepower of the fresh air fan to increase the air delivery distance. The structural design is very ingenious and can reduce the manufacturing cost and power cost of the entire air conditioner indoor unit 100.

[0099] In addition, by making the fresh air outlet 14 surround the air conditioning outlet 12, the fresh air blown out through the fresh air outlet 14 can be mixed with the air conditioning air blown out through the air conditioning outlet 12, so that the temperature of the mixed air can be more uniform, thereby further improving the user experience.

[0100] The shape of the air conditioner vent 12 can be circular, rectangular or any other possible shape, and the embodiment does not limit this.

[0101] In some embodiments, see Figure 1 and Figure 3 The fresh air outlet 14 is exposed outside the casing 1.

[0102] By exposing the fresh air outlet 14 to the casing 1, the fresh air outlet 14 is not covered by the casing 1. In simple terms, the fresh air outlet 14 is a relatively conspicuous structure with a high degree of visibility. As a result, users can easily find the location of the fresh air outlet 14 and perceive the fresh air supply at the fresh air outlet 14, resulting in a better user experience.

[0103] In some embodiments, see Figure 1 and Figure 5 The fresh air outlet 14 protrudes from the casing 1.

[0104] By making the fresh air outlet 14 protrude from the housing 1, the position of the fresh air outlet 14 on the housing 1 can be made more conspicuous, making it easier to find the fresh air outlet 14 from the housing 1, thereby further improving the visibility of the fresh air outlet 14.

[0105] Of course, the above-mentioned fresh air outlet 14 protruding from the housing 1 is only one possible implementation method given in this embodiment. In other implementation methods, the fresh air outlet 14 can also be recessed into the housing 1, as long as the fresh air outlet 14 is not blocked by the housing 1. This embodiment does not limit this.

[0106] In some embodiments, see Figure 3 The fresh air outlet 14 is circular.

[0107] When the fresh air outlet 14 is circular, the distance between each point of the fresh air outlet 14 and the air conditioning outlet 12 can be minimized as much as possible while maintaining a fixed total air outlet area. This ensures that all fresh air blown out through the fresh air outlet 14 receives support from the air conditioning air blown out through the air conditioning outlet 12, thus guaranteeing a longer delivery distance for as much fresh air as possible. It also makes the mixing of air conditioning air and fresh air more uniform. Furthermore, it reduces the manufacturing difficulty of the fresh air outlet 14.

[0108] In some embodiments, see Figure 5 and Figure 6 , Figure 6 yes Figure 1 Another exploded view of the indoor unit 100 of the air conditioner shows that the housing 1 includes an outer shell 15 and a mounting plate 16. The outer shell 15 encloses and forms an inner cavity 10. The mounting plate 16 is disposed in the inner cavity 10. The air conditioner outlet 12 is disposed on the mounting plate 16, and the fresh air outlet 14 is disposed on the outer shell 15.

[0109] Since the air conditioning outlet 12 is located on the mounting plate 16 and the fresh air outlet 14 is located on the outer casing 15, the air conditioning outlet 12 and the fresh air outlet 14 can be located on different parts of the casing 1. In this way, compared with the method of setting both the air conditioning outlet 12 and the fresh air outlet 14 on the same part of the casing 1, it can avoid the situation where the strength of the part is drastically reduced due to the air conditioning outlet 12 and the fresh air outlet 14 being concentrated on the same part.

[0110] On the other hand, it can also avoid the situation where the layout of the air conditioning vent 12 and the fresh air vent 14 is too cramped. Furthermore, it can make the air conditioning vent 12 and the fresh air vent 14 structurally more separate, thereby making the fresh air vent 14 more conspicuous and further improving its visibility.

[0111] In some embodiments, see Figure 5 , Figure 6 and Figure 7 , Figure 7 yes Figure 5 A partial enlarged view at position B shows that the housing 1 also includes a surrounding plate 17, which is disposed within the inner cavity 10 and is horizontally aligned with the mounting plate 16. Figure 5 (In the X-axis direction) the enclosure plate 17 and the outer shell 15 are spaced apart and form a fresh air duct 31, which is connected to the fresh air module 3 and the connecting hole 181 respectively.

[0112] As can be seen, the fresh air duct 31 is formed by the enclosure plate 17 and the housing 1 together. That is, the fresh air duct 31 can be formed by cleverly utilizing the existing structure of the housing 1 and the enclosure plate 17. There is no need to add too many parts to form the fresh air duct 31. The formation method of the fresh air duct 31 is very simple, which can simplify the structure of the air conditioner indoor unit and reduce the cost of the air conditioner indoor unit.

[0113] In some embodiments, see Figure 6 The outer shell 15 includes a front shell 151 and a rear shell 152. The rear shell 152 and the front shell 151 are spaced apart from each other in the horizontal direction. The air conditioning inlet 11 is located in the rear shell 152, and the fresh air outlet 14 is located in the front shell 151. The enclosure plate 17 and the front shell 151 enclose each other to form a fresh air duct 31.

[0114] By placing the air inlet 11 on the rear casing 152, the front casing 151 becomes more aesthetically pleasing, thereby enhancing the appearance of the indoor unit 100. By placing the fresh air outlet 14 on the front casing 151, the fresh air outlet 14 faces the room, which makes it easier for the indoor unit 100 to blow fresh air into the room.

[0115] By placing the air conditioning inlet 11 on the rear shell 152 and the fresh air outlet 14 on the front shell 151, the air conditioning inlet 11 and the fresh air outlet 14 can be arranged on different parts of the outer shell 15. This avoids the situation of being too cramped when arranging the air conditioning inlet 11 and the fresh air outlet 14, and makes the layout of the air conditioning inlet 11 and the fresh air outlet 14 simpler.

[0116] Of course, in other embodiments, the air conditioning inlet 11 can also be located on the front cover 151, and the fresh air outlet 14 can also be located on the rear cover 152. This embodiment does not limit this.

[0117] It should be noted that the aforementioned front casing 151 refers to the casing 15 facing the user after the air conditioner indoor unit 100 is installed, and the aforementioned rear casing 152 refers to the casing 15 facing away from the user.

[0118] In some embodiments, see Figure 8 , Figure 9 and Figure 10 , Figure 8 yes Figure 6 An exploded view of the fore-and-aft shell 151. Figure 9 yes Figure 6 Another exploded view of the middle anterior shell. Figure 10 yes Figure 9The diagram shows the structure after the front shell is disassembled. The indoor unit 100 of the air conditioner also includes a first annular protrusion 1821a. The first annular protrusion 1821a is disposed around the air conditioner outlet 12 on the housing 1. The housing 1 has a first opening 1821 that surrounds the air conditioner outlet 12. Specifically, the first opening 1821 can be opened on the front shell 151, and the first annular protrusion 1821a is disposed around the first opening 1821.

[0119] Since a first annular protrusion 1821a is provided around the first opening 1821, the first opening 1821 can allow the air conditioning air blown out of the air conditioning outlet 12 to continue to enter the room through the first opening 1821, thereby achieving the purpose of regulating the temperature of the room.

[0120] A first annular protrusion 1821a is provided around the first opening 1821. The first annular protrusion 1821a can guide the air conditioning air, so that the air conditioning air can be blown further under the guidance of the first annular protrusion 1821a, thereby increasing the air delivery distance of the air conditioning air.

[0121] In some embodiments, see Figure 8 , Figure 9 and Figure 10 The indoor unit 100 of the air conditioner also includes a second annular protrusion 183, which is disposed on the housing 1 around the periphery of the first annular protrusion 1821a, so as to form a fresh air outlet 14 with the first annular protrusion 1821a.

[0122] Since the first annular protrusion 1821a is disposed around the air conditioner outlet 12 on the housing 1, and the second annular protrusion 183 is disposed around the periphery of the first annular protrusion 1821a on the housing 1, so as to form a fresh air outlet 14 with the first annular protrusion 1821a, the fresh air outlet 14 can surround the air conditioner outlet 12. When the fresh air outlet 14 surrounds the air conditioner outlet 12, on the one hand, the air delivery distance of the fresh air can be increased, and on the other hand, the fresh air can be mixed with the air conditioner air, so that the temperature of the mixed air can be more uniform.

[0123] In addition, by setting the second annular protrusion 183 on the housing 1 and surrounding the periphery of the first annular protrusion 1821a, a fresh air outlet 14 can be formed between the second annular protrusion 183 and the first annular protrusion 1821a. The implementation method is very simple and can reduce the cost of the fresh air outlet 14.

[0124] In some embodiments, see Figure 9 and Figure 11 , Figure 11 yes Figure 9A schematic diagram of the structure of the second annular protrusion 183 is shown. The second annular protrusion 183 includes an outer protruding ring 1831 and an inner closing ring 1832. The outer protruding ring 1831 is disposed on the housing 1 around the periphery of the first annular protrusion 1821a. The inner closing ring 1832 is disposed around the periphery of the first annular protrusion 1821a and is located on the side of the outer protruding ring 1831 close to the first annular protrusion 1821a. The connecting end of the inner closing ring 1832 is connected to the end of the outer protruding ring 1831 away from the housing 1, and the free end 1832a is spaced apart from the housing 1 to form a gap 1830.

[0125] The housing 1 is also provided with a connecting hole 181 that connects the fresh air module 3 and the annular cavity 1833 respectively, so that fresh air enters the annular cavity 1833 from the fresh air module 3 through the connecting hole 181, and flows out of the housing 1 from the annular cavity 1833 through the fresh air outlet 14.

[0126] Since the free end 1832a of the inner ring 1832 is spaced apart from the housing 1, there will be a gap 1830 between the free end 1832a and the housing 1. When fresh air enters the annular cavity 1833 through the fresh air duct 31, the fresh air can be blown out from the fresh air outlet 14 through the gap 1830. The inner ring 1832 can guide the flow of fresh air entering the annular cavity 1833 through the connecting hole 181, so that the fresh air can form an annular distribution between the first annular protrusion 1821a and the second annular protrusion 183. This ensures that air can be discharged from all positions around the fresh air outlet 14, thereby ensuring the uniformity of the air discharged from the fresh air outlet 14.

[0127] To ensure more uniform airflow at all locations of the fresh air outlet 14, and to prevent excessive airflow near the connecting hole 181 and insufficient airflow further away from the connecting hole 181, in some embodiments, see... Figure 11 and Figure 12 , Figure 12 yes Figure 3 A cross-sectional view of the front shell 151 at position AA, along the vertically upward direction away from the connecting hole 181. Figure 12 (In the positive direction of the Z-axis), the width of the gap 1830 gradually increases.

[0128] Because the width of the gap 1830 gradually increases along the vertical upward direction away from the connecting hole 181, the air resistance of the gap 1830 to the fresh air gradually decreases along the vertical upward direction away from the connecting hole 181. As a result, even though the airflow force of the fresh air gradually decreases along the direction away from the connecting hole 181, the air resistance of the gap 1830 to the fresh air also gradually decreases. This makes the fresh air volume at each position through the gap 1830 approximately equal, thereby making the airflow at each position of the fresh air outlet 14 more uniform and improving the user experience.

[0129] In some embodiments, see Figure 11 , Figure 12 and Figure 13 , Figure 13 yes Figure 11 A schematic diagram of the structure of the second annular protrusion 183 from another perspective. The end of the outer protrusion 1831 away from the housing 1 (the right end of the outer protrusion 1831 in 13) and the free end 1832a are located along the axial direction of the fresh air outlet 14. Figure 13 The outer convex ring 1831 has a first point 1832b near the connecting hole 181 and a second point 1832c away from the connecting hole 181 on the end away from the housing 1, and the direction from the first point 1832b to the second point 1832c is (in the X-axis direction). Figure 13 (In the positive direction of the Z-axis), the first distance L gradually decreases.

[0130] By making the first distance L gradually decrease along the direction from the first point 1832b to the second point 1832c, the width of the gap 1830 between the free end 1832a and the casing 1 gradually increases along the direction from the first point 1832b to the second point 1832c. In this way, the air resistance of the gap 1830 to the fresh air gradually decreases along the direction from the first point 1832b to the second point 1832c. In this way, even if the air force of the fresh air gradually decreases along the direction from the first point 1832b to the second point 1832c, the air resistance of the gap 1830 to the fresh air will also gradually decrease as the direction moves away from the connecting hole 181. This makes the fresh air volume at each position through the gap 1830 approximately equal, thereby making the air outlet 14 more uniform and improving the user experience.

[0131] In some embodiments, see Figure 5 , Figure 9 and Figure 10 The connecting hole 181 is located at one end of the fresh air outlet 14 facing the fresh air module 3.

[0132] By positioning the connecting hole 181 at the end of the fresh air outlet 14 facing the fresh air module 3, the connecting hole 181 can be placed closer to the fresh air module 3. This can reduce the wind resistance encountered by the fresh air as it flows from the fresh air module 3 through the fresh air duct 31 to the connecting hole 181, thereby increasing the air volume of the fresh air blown out through the fresh air outlet 14 to a certain extent.

[0133] In some embodiments, see Figure 5 Fresh air outlet 14 is along the vertical direction ( Figure 5 The height of the air module (in the Z-axis direction) is higher than that of the fresh air module 3.

[0134] By positioning the fresh air outlet 14 vertically higher than the fresh air module 3, the lower part of the indoor unit 100 can be used to place the fresh air module 3, while the higher part can be used to house the fresh air outlet 14. This results in two advantages: firstly, the bottom of the indoor unit 100 is relatively heavier, improving its stability and reducing the likelihood of it tipping over; secondly, it allows fresh air to be blown through the fresh air outlet 14 to a higher position in the room, helping users breathe fresh air and thus improving the user experience.

[0135] In some embodiments, see Figure 6 and Figure 8 The housing 1 is provided with a countersunk hole 18. Specifically, the countersunk hole 18 can be provided on the front housing 151. The connecting hole 181 is provided on the peripheral wall of the countersunk hole 18 and connects to the first end of the fresh air duct 31.

[0136] Since the connecting hole 181 connects to the first end of the fresh air duct 31, the fresh air in the fresh air duct 31 can enter the annular cavity 1833 through the connecting hole 181.

[0137] Since the connecting hole 181 is located on the peripheral wall of the countersunk hole portion 18, the connecting hole 181 can avoid occupying the front of the housing 1, such as the front cover 151, thus making the front of the housing 1 more integrated.

[0138] In some embodiments, see Figure 8 , Figure 9 and Figure 10 The bottom 182 of the countersunk hole 18 is provided with a first opening 1821 surrounding the air conditioning outlet 12. A first annular protrusion 1821a is provided around the first opening 1821. An outer protruding ring 1831 is provided around the countersunk hole 18. The free end 1832a is spaced apart from the bottom 182 of the hole, and there is a gap 1830 between the free end 1832a and the bottom 182 of the hole.

[0139] By providing a first opening 1821 at the bottom 182 of the countersunk hole 18, and providing a first annular protrusion 1821a around the periphery of the first opening 1821, it is possible to ensure that the first annular protrusion 1821a extends along the depth direction of the countersunk hole 18. Figure 8 With a fixed height in the X-axis direction, the height of the first annular protrusion 1821a protruding out of the casing 1 is relatively low, which can reduce the possibility that the first annular protrusion 1821a is easily damaged due to excessive protrusion outside the casing 1, thereby making the entire air conditioner indoor unit 100 more durable.

[0140] In some embodiments, see Figure 6 and Figure 10 The direction from the air conditioner vent 12 to the fresh air vent 14 ( Figure 6 (In the positive direction of the X-axis), the inner diameter of the first annular protrusion 1821a gradually increases.

[0141] Along the direction from the air conditioner outlet 12 to the fresh air outlet 14, by gradually increasing the inner diameter of the first annular protrusion 1821a, the wind resistance of the first annular protrusion 1821a to the air conditioner air blown out through the air conditioner outlet 12 can be reduced, thereby enabling the air conditioner air to be delivered to a farther place.

[0142] In some embodiments, see Figure 8 Along the axial direction of the fresh air outlet 14 ( Figure 8 In the X-axis direction, the first annular protrusion 1821a protrudes from the second annular protrusion 183.

[0143] By making the first annular protrusion 1821a protrude beyond the second annular protrusion 183, the first annular protrusion 1821a can better guide the air conditioning air blown out through the air conditioning outlet 12, thereby enabling the air conditioning air to be delivered to a farther place.

[0144] In some embodiments, see Figure 8 Along the axial direction of the fresh air outlet 14, the first annular protrusion 1821a is flush with the second annular protrusion 183.

[0145] By making the first annular protrusion 1821a and the second annular protrusion 183 flush, the structure formed by the first annular protrusion 1821a and the second annular protrusion 183 together is more regular in shape. On the one hand, it can improve the appearance of the air conditioner indoor unit. On the other hand, it can avoid the situation where one of the first annular protrusion 1821a and the second annular protrusion 183 is too protruding and easily damaged by impact. This makes the structure formed by the first annular protrusion 1821a and the second annular protrusion 183 together have stronger mechanical strength.

[0146] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An air conditioner indoor unit (100), characterized in that, include: The housing (1) is provided with an air conditioning inlet (11), an air conditioning outlet (12), a fresh air inlet (13) and a fresh air outlet (14); Heat treatment module (2), the heat treatment module (2) is disposed inside the housing (1) and is used to draw air outside the housing (1) into the housing (1) through the air conditioning inlet (11) for heat exchange, and blow the heat-exchanged air out of the housing (1) through the air conditioning outlet (12); Fresh air module (3), the fresh air module (3) is disposed inside the housing (1) and is connected to the fresh air inlet (13) and the fresh air outlet (14) respectively, for purifying the air entering the fresh air module (3) through the fresh air inlet (13) to obtain fresh air, and blowing the fresh air out through the fresh air outlet (14); A first annular protrusion (1821a) is disposed on the housing (1) surrounding the air conditioner outlet (12); The second annular protrusion (183) is disposed on the housing (1) around the periphery of the first annular protrusion (1821a) to form the fresh air outlet (14) together with the first annular protrusion (1821a). The second annular protrusion (183) includes: An outer convex ring (1831) is disposed on the housing (1) surrounding the periphery of the first annular protrusion (1821a); An inner ring (1832) surrounds the periphery of the first annular protrusion (1821a) and is located on the side of the outer protrusion (1831) close to the first annular protrusion (1821a). The connecting end of the inner ring (1832) is connected to the end of the outer protrusion (1831) away from the housing (1), and the free end (1832a) is spaced apart from the housing (1) so that an annular cavity (1833) is formed between the inner ring (1832) and the outer protrusion (1831). The housing (1) is also provided with a connecting hole (181) that connects the fresh air module (3) and the annular cavity (1833) respectively, so that fresh air enters the annular cavity (1833) through the connecting hole (181) from the fresh air module (3), and flows out of the housing (1) through the fresh air outlet (14) from the annular cavity (1833); Wherein, the end of the outer convex ring (1831) away from the housing (1) and the free end (1832a) have a first distance (L) along the axial direction of the fresh air outlet (14). The end of the outer convex ring (1831) away from the housing (1) has a first point (1832b) near the connecting hole (181) and a second point (1832c) away from the connecting hole (181). The first distance (L) gradually decreases along the direction from the first point (1832b) to the second point (1832c).

2. The air conditioner indoor unit (100) according to claim 1, characterized in that, The housing (1) is provided with a countersunk hole (18), and the bottom (182) of the countersunk hole (18) is provided with a first opening (1821) surrounding the air conditioner outlet (12), and the first annular protrusion (1821a) is provided around the first opening (1821). The outer protruding ring (1831) is provided around the periphery of the countersunk hole (18), and the free end (1832a) is spaced apart from the bottom of the hole (182).

3. The air conditioner indoor unit (100) according to claim 2, characterized in that, The connecting hole (181) is disposed on the peripheral wall of the countersunk hole (18).

4. The air conditioner indoor unit (100) according to claim 1, characterized in that, The connecting hole (181) is located at one end of the fresh air outlet (14) facing the fresh air module (3).

5. The air conditioner indoor unit (100) according to claim 1, characterized in that, The height of the fresh air outlet (14) in the vertical direction is higher than that of the fresh air module (3).

6. The air conditioner indoor unit (100) according to claim 1, characterized in that, Along the axial direction of the fresh air outlet (14), the first annular protrusion (1821a) protrudes from the second annular protrusion (183); and / or, along the axial direction of the fresh air outlet (14), the first annular protrusion (1821a) is flush with the second annular protrusion (183).

7. The air conditioning indoor unit (100) according to any one of claims 1-6, characterized in that, The housing (1) includes: A housing (15) that encloses to form an inner cavity (10); and, Mounting plate (16) is disposed in the inner cavity (10), air conditioning outlet (12) is disposed on the mounting plate (16), and fresh air outlet (14) is disposed on the outer shell (15).

8. The air conditioner indoor unit (100) according to claim 7, characterized in that, The housing (1) also includes: Enclosing plate (17) is disposed in the inner cavity (10) and is horizontally spaced from the mounting plate (16). The enclosing plate (17) and the outer shell (15) enclose each other to form a fresh air duct (31). The fresh air duct (31) is connected to the fresh air module (3) and the connecting hole (181).

9. The air conditioner indoor unit (100) according to claim 7, characterized in that, Along the direction from the air conditioner outlet (12) to the fresh air outlet (14), the inner diameter of at least part of the first annular protrusion (1821a) gradually increases.

10. The air conditioning indoor unit (100) according to any one of claims 1-6, characterized in that, The fresh air outlet (14) is circular.

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