A window-type air conditioner

Abstract

The application relates to the technical field of household appliances, and particularly discloses a window type air conditioner which comprises a guide air frame rotatably arranged at an indoor air outlet, the guide air frame can rotate between a first position and a second position, the guide air frame comprises oppositely arranged first and second guide air outlets, and the area of the first guide air outlet is larger than that of the second guide air outlet; when the guide air frame is in the first position, the first guide air outlet is located upstream of the second guide air outlet along an air outlet direction, and when the guide air frame is in the second position, the first guide air outlet is located downstream of the second guide air outlet along the air outlet direction. When the guide air frame is in the first position, the inlet area of the guide air frame is larger than the outlet area, a pressurized flow channel is formed, the air flow velocity is increased at the outlet end surface after the air flow passes through the guide air frame, and the air supply distance is increased; when the guide air frame is in the second position, the inlet area of the guide air frame is smaller than the outlet area, a deceleration flow channel is formed, the air flow presents a diffusion form, and the air supply angle is increased.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and more particularly to a window air conditioner. Background Technology

[0002] The field of home appliance technology encompasses a wide range of product categories, including but not limited to air conditioners, refrigerators, washing machines, microwave ovens, dishwashers, and vacuum cleaners. Air conditioners, as the core appliance for regulating indoor environments, come in various forms such as wall-mounted, central, and window models, allowing users to choose different types for different scenarios.

[0003] Window air conditioners, characterized by their simple installation and integrated design, are still widely used in apartments and small offices. They integrate core components such as the compressor, evaporator, and condenser into a single unit, which operates by being embedded in a window or wall. Typically, window air conditioners have a deflector at the indoor air outlet. This deflector can rotate at the outlet to deliver air at different angles, but the airflow distance is not long enough, and the airflow range at the deflector frame is small at the same angle. Utility Model Content

[0004] This application discloses a window air conditioner. When the air guide frame is in the first position, it can achieve the air collection effect and increase the air delivery distance. When the air guide frame is in the second position, it can achieve the air dispersion effect and increase the air delivery angle.

[0005] To achieve the above objectives, some embodiments of this application provide a window air conditioner, comprising: a casing with a cavity formed therein, the casing having an indoor air outlet; a partition disposed within the casing to divide the cavity into an outdoor space and an indoor space, the outdoor space containing a compressor, an outdoor heat exchanger, and an outdoor fan, the indoor space containing an indoor heat exchanger and an indoor fan, the indoor fan being used to introduce airflow into the casing, which, after heat exchange by the indoor heat exchanger, is then delivered into the room through the indoor air outlet; and an air guide frame rotatably disposed at the indoor air outlet, the air guide frame being rotatable between a first position and a second position, the air guide frame including a first air guide port and a second air guide port disposed opposite to each other, the area of ​​the first air guide port being larger than the area of ​​the second air guide port; when the air guide frame is in the first position, along the air outlet direction, the first air guide port is located upstream of the second air guide port, and when the air guide frame is in the second position, along the air outlet direction, the first air guide port is located downstream of the second air guide port.

[0006] Thus, the first air guide is upstream of the second air guide, and the area of ​​the air inlet of the air guide frame is larger than the area of ​​the air outlet, forming a pressurized flow channel with an inlet area larger than the outlet area. According to the law of conservation of flow... ( (where u is the flow rate, A is the flow velocity, and A is the cross-sectional area of ​​the flow channel). With a constant flow rate, decreasing the cross-sectional area of ​​the flow channel along the air outlet direction increases the air velocity u. This increases the air velocity at the outlet, enhancing the penetration of the airflow and effectively extending the air delivery distance. This solves the problem of slow cooling or heating in distant areas due to weak airflow in traditional window air conditioners. The first air guide is located downstream of the second air guide. At this point, the outlet area of ​​the air guide frame is larger than the inlet area, forming a deceleration flow channel with a smaller inlet area than the outlet area. When the airflow enters the air guide frame, it diffuses due to the wall's guiding effect, increasing the outlet angle and allowing the airflow to cover a wider area of ​​the room. This avoids excessive concentration of airflow in certain areas and alleviates the problems of narrow airflow range and localized temperature differences common in traditional models.

[0007] As an optional implementation, the air guide frame forms an air guide channel, and along the direction from the first air guide opening to the second air guide opening, the cross-sectional area of ​​the air guide channel perpendicular to the air outlet direction gradually decreases.

[0008] Thus, the gradually decreasing cross-sectional area of ​​the air guide channel creates a smooth transition between the first and second air guides, reducing turbulence and energy loss within the channel. When the air guide frame is in the first position (the first air guide is the inlet, and the second air guide is the outlet), this gradual contraction design allows the airflow to accelerate more smoothly during its flow, avoiding eddies caused by abrupt changes in cross-section. This ensures that the airflow velocity increases while maintaining stability, thereby more effectively extending the air delivery distance and resulting in more concentrated and penetrating airflow. When the air guide frame rotates to the second position (the second air guide is the inlet, and the first air guide is the outlet), the airflow direction is from the end with the smaller cross-sectional area to the end with the larger cross-sectional area, forming a diffusion channel. The smoothly transitioning channel wall guides the airflow to diffuse evenly, preventing turbulence or sudden drops in local velocity during diffusion. This makes the expansion of the air delivery angle more uniform, the coverage area more stable, reduces local temperature differences caused by uneven airflow diffusion, and improves the overall consistency of indoor temperature regulation.

[0009] As an optional implementation, in the vertical direction, the width of the second air guide gradually increases from top to bottom along the horizontal direction.

[0010] Therefore, in cooling mode, considering the physical properties of cold air, its higher density leads to a natural tendency to sink, which can cause traditional air conditioners to have insufficient airflow coverage in the upper area and excessively concentrated airflow in the lower area. When the air guide frame is in the first position, the second air guide, acting as the air outlet, has a narrow top and a wide bottom. Based on the principle of fluid mechanics that "the smaller the cross-section, the greater the velocity," this allows the airflow at the top of the air guide to achieve a higher velocity, while the airflow at the bottom, due to its wider cross-section, has a relatively lower velocity. This velocity difference counteracts the natural sinking tendency of cold air; the high-speed airflow at the top has greater kinetic energy and can achieve air delivery over a longer distance, while the low-speed airflow at the bottom covers the middle and lower areas with moderate diffusion, ultimately forming a uniform airflow distribution from top to bottom, avoiding the drawback of cold air concentrating at the bottom of the room.

[0011] As an optional implementation, the air guide frame includes a first sidewall and a second sidewall disposed opposite to each other. The arrangement direction of the first sidewall and the second sidewall is perpendicular to the air outlet direction and perpendicular to the extension direction of the rotation axis of the air guide frame. The angle between the first sidewall and the second sidewall along the air outlet direction is α, where 3° < α < 20°.

[0012] Thus, when the included angle α is too small (≤3°), the degree of contraction of the air guide channel is small. At this time, the acceleration effect of the airflow in the channel is not obvious, and it is difficult to form a sufficient increase in flow velocity, resulting in a short air delivery distance, which cannot meet the temperature regulation needs of long-distance areas. At the same time, when the air guide frame is in the second position, the diffusion effect is poor and the coverage area is narrow, and the problems of concentrated air outlet and uneven coverage of traditional window air conditioners still exist.

[0013] When the included angle α is too large (≥20°), the air guide channel contracts too steeply. When the air guide frame is in the first position, the airflow is prone to severe turbulence and eddies due to the abrupt change in cross-section as it flows rapidly through the channel, resulting in energy loss. This not only weakens the flow velocity enhancement effect but also generates significant noise due to the airflow impacting the channel wall. Furthermore, excessively rapid contraction may cause some airflow to form backflow within the channel, thereby reducing the air outlet efficiency. At the same time, the air outlet direction is prone to deviation, making it difficult to form a stable air supply path.

[0014] When the included angle α is within the range of 3° < α < 20°, it ensures that the air guide channel forms an effective flow collection effect, allowing the airflow to accelerate steadily during a smooth transition and significantly increasing the air delivery distance. At the same time, it avoids turbulence and noise problems caused by excessive contraction. Within this angle range, the energy loss of the airflow is small when flowing along the sidewall, and the air delivery stability is strong. At the same time, a moderate contraction angle can balance the relationship between the increase in flow velocity and the diffusion of airflow, so that a certain coverage range can still be maintained when delivering air over long distances, achieving synergistic optimization of long-distance air delivery and expanded coverage.

[0015] As an optional implementation, the second air guide includes a first edge and a second edge arranged opposite each other in the horizontal direction and perpendicular to the air outlet direction, wherein the angle between the first edge and the second edge in the vertical direction is β, and 3° < β < 20°.

[0016] Thus, when the included angle β is too small (≤3°), the difference in horizontal width between the top and bottom of the second air vent is too small. At this time, the airflow passing through the air vent has little difference in vertical velocity. The airflow at the top cannot obtain enough kinetic energy to counteract the natural sinking trend. The problem of cold air concentrating in the lower part of the room and hot air accumulating in the upper part will still occur. The similar vertical velocity leads to uneven airflow coverage in the vertical direction, making it impossible to form a complete airflow circulation from the top to the bottom, thus reducing the overall cooling efficiency of the room.

[0017] When the included angle β is too large (≥20°), the top width of the second air vent is too narrow and the bottom width is too wide, resulting in excessively large differences in airflow velocity in the vertical direction. Excessive airflow velocity at the top can easily create localized strong winds, which may bounce back after blowing directly onto the ceiling of the room, causing airflow turbulence. Conversely, excessively slow airflow velocity at the bottom will fail to cover the lower and middle areas of the room, resulting in an imbalance of strong airflow at the top and weak airflow at the bottom. This affects the uniformity of temperature regulation and may also cause discomfort to users due to localized strong winds.

[0018] When the included angle β is within the range of 3° < β < 20°, the width of the second air vent gradually changes vertically. This allows the airflow at the top to achieve a reasonable increase in velocity, effectively counteracting the downward force of cold air and achieving effective coverage of the upper part of the room. The airflow at the bottom maintains an appropriate velocity, spreading evenly to the middle and lower areas, ultimately forming a continuous airflow circulation from top to bottom. This angle range avoids the problem of cold air sinking due to insufficient velocity difference, while also preventing airflow turbulence caused by excessive difference. This results in a more uniform vertical distribution of cold air, significantly improving the overall cooling efficiency and user comfort of the room.

[0019] As an optional implementation, the window air conditioner further includes: an air duct component disposed in the indoor space, wherein an air duct is formed within the air duct component, the air inlet of the air duct is connected to the air outlet side of the indoor fan, and the air outlet of the air duct is connected to the indoor air outlet; an air guide frame is disposed at the air outlet of the air duct, and the air guide frame is provided with a rotating shaft extending in a vertical direction, the rotating shaft being rotatably connected to the air duct component so that the air guide frame rotates around the rotating shaft.

[0020] In this way, the vertical rotation axis allows the air guide frame to rotate left and right on the horizontal plane around the vertical axis, changing the horizontal air outlet angle of the window air conditioner. The vertically rotating air guide frame can flexibly adjust the airflow direction according to the room layout, such as deflecting to the left or right, so that the airflow more accurately covers areas such as sofas and beds, enhancing the user experience. When the air guide frame rotates around the vertical axis, users can further adjust the horizontal airflow direction while selecting the long-distance strong airflow or short-distance wide coverage mode. This combined adjustment method makes the airflow more suitable for actual use scenarios, enhancing the user experience.

[0021] As an optional implementation, the indoor air outlet is provided with a plurality of air guide blades spaced apart in the vertical direction, and the air guide blades are capable of swinging around a horizontal axis.

[0022] Thus, the horizontal axis of the air guide vanes allows them to swing up and down, delivering airflow upwards to the top of the room or downwards to cover the middle and lower areas as needed. On the other hand, the air guide vanes can work in conjunction with the air guide frame. For example, when the air guide frame is in pressurized remote delivery mode, the high-speed airflow can be allowed to break through the height limit and cover the upper space deep inside the room by swinging the grille upwards. When in diffusion and wide coverage mode, the airflow can be evenly dispersed in the vertical direction by fine-tuning the grille, avoiding strong local winds blowing directly on people.

[0023] As an optional implementation, the air guide frame includes: a first sidewall; a second sidewall, which is arranged horizontally opposite to the first sidewall; a top wall; and a bottom wall, which is disposed below the top wall and is arranged vertically opposite to the top wall. Along the air outlet direction, the widths of the first sidewall, the second sidewall, the top wall, and the bottom wall are equal.

[0024] Thus, the entire airflow channel from the first air inlet to the second air inlet maintains a parallel and uniform transition between its horizontal (first and second sidewalls) and vertical (top and bottom walls) boundaries, preventing channel cross-section deformation caused by any wall being too wide or too narrow. This structure ensures that the horizontal and vertical constraints are consistent during airflow, avoiding eddies or airflow deviation caused by local channel deformation. For example, when the airflow guide frame is in the second position, if the top wall width is smaller than the sidewall width, the airflow at the top may leave the airflow channel prematurely and diffuse into the room, disrupting the overall flow field stability; while equal widths of all sidewalls allow the airflow to flow smoothly along a preset path, reducing energy loss and ensuring airflow efficiency.

[0025] As an alternative embodiment, an air duct member is disposed in the indoor space, an air duct is formed in the air duct member, an air inlet of the air duct is in communication with an air outlet side of the indoor fan, and an air outlet of the air duct is in communication with the indoor air outlet; the air guide frame is disposed at the air outlet of the air duct, a ratio of a maximum horizontal dimension of the first air guide opening to a width of the air outlet of the air duct in a width direction of the window-type air conditioner is a, wherein 0.3 < a < 0.7.

[0026] When the ratio a is too small (≤ 0.3), the horizontal dimension of the first air guide opening is too small, and most of the air flow will overflow from the gaps on both sides of the air guide frame, and cannot effectively enter the air guide channel to participate in flow velocity or angle adjustment, resulting in poor flow collecting or air diffusing effect of the air guide frame; meanwhile, the overflowed air flow is prone to form turbulent flow near the air outlet, which reduces air outlet efficiency, may generate extra noise, and weakens the overall adjustment effect.

[0027] When the ratio a is too large (≥ 0.7), the horizontal dimension of the first air guide opening is close to the width of the air outlet of the air duct, the air guide frame almost completely covers the outlet of the air duct, and the air guide frame is not easy to rotate in the air duct and is prone to interfere with the inner wall of the air duct member.

[0028] When the ratio a is in the range of 0.3 < a < 0.7, it can not only ensure that most of the air flow can enter the air guide channel for effective adjustment, but also reserve a proper lateral flow space for the air flow, so that better flow collecting and air diffusing effects can be achieved when the air guide frame is at different positions.

[0029] As an alternative embodiment, an air duct member is disposed in the indoor space, an air duct is formed in the air duct member, an air inlet of the air duct is in communication with an air outlet side of the indoor fan, and an air outlet of the air duct is in communication with the indoor air outlet; the air guide frame further comprises, arranged at intervals in a vertical direction: a top wall; and a bottom wall disposed below the top wall, a ratio of a distance between the top wall and the bottom wall in the vertical direction to a height of the air outlet of the air duct is b, wherein 0.7 < b < 1.

[0030] When the ratio b is too small (≤ 0.7), the distance H1 between the top wall and the bottom wall (i.e., the height of the air guide frame) is too small, which means that the constraint range of the air guide frame on the air flow in the vertical direction is too narrow. At this time, a large amount of air flow will overflow from the top or bottom of the air guide frame and cannot enter the air guide channel, and the overflowed air flow is prone to form turbulent air flow in the upper and lower regions of the air outlet, which damages the stability of the overall flow field, reduces the air outlet efficiency and affects user experience.

[0031] When the ratio b is in the range of 0.7 < b < 1, in a limited space, it is ensured that most of the air flow in the vertical direction can enter the air guide channel to achieve the flow collecting or air diffusing effect.

[0032] Compared with the prior art, the present application has at least the following beneficial effects: The window air conditioner provided in this embodiment has an air guide frame in the first position where the inlet area is larger than the outlet area, forming a pressurized flow channel. According to the law of conservation of flow... ( (where u is the flow rate, A is the cross-sectional area of ​​the flow channel). When the airflow flow rate is constant, a decrease in cross-sectional area A results in an increase in flow velocity u. This causes the airflow velocity to increase at the outlet face after passing through the guide frame, thereby increasing the air delivery distance. When the guide plate is in the second position, the inlet area of ​​the guide frame is smaller than the outlet area, forming a deceleration channel. The airflow is guided by the structure of the two walls of the guide plate, resulting in a diffusion pattern and an increase in the air delivery angle. Attached Figure Description

[0033] 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.

[0034] Figure 1 This is a schematic diagram of the structure of the window air conditioner disclosed in the embodiments of this application; Figure 2 This is a schematic diagram of a window air conditioner disclosed in an embodiment of this application, omitting the front panel; Figure 3 This is a schematic diagram of another structure of the window air conditioner disclosed in the embodiments of this application, omitting the front panel; Figure 4 for Figure 3 Sectional view at point AA; Figure 5 This is a schematic diagram of the air guide frame in the first-person view of the prior art. Figure 6 This is a schematic diagram of the air guide frame in the prior art, viewed from a second perspective. Figure 7 This is a schematic diagram of the air guide frame disclosed in an embodiment of this application from a first-view perspective. Figure 8 This is a schematic diagram of the air guide frame disclosed in an embodiment of this application from a second perspective. Figure 9 This is a schematic diagram of the air guide frame disclosed in an embodiment of this application from a third-person perspective. Figure 10 for Figure 7 Sectional view at point BB; Figure 11 for Figure 3 A magnified view of a section at point C.

[0035] Explanation of reference numerals in the attached figures: 100 - Window air conditioner; 1 - Housing; 11 - Front panel; 11a - Indoor air inlet; 11b - Indoor air outlet; 2 - Separator; 2a - Indoor space; 2b - Outdoor space; 3 - Air guide frame; 3a - Air guide duct; 3b - First air guide outlet; 3c - Second air guide outlet; 31 - First side wall; 311 - First edge; 32 - Second side wall; 321 - Second edge; 33 - Top wall; 34 - Bottom wall; 35 - Rotating shaft; 4 - Air duct component; 5 - Air guide blade; α - Angle between the first and second side walls along the air outlet direction; β - Angle between the first and second edges along the vertical direction; d1 - Maximum distance of the first air guide outlet along the horizontal direction; d2 - Width of the air duct outlet along the width direction of the window air conditioner; H1 - Distance between the top and bottom walls; H2 - Height of the air duct outlet. Detailed Implementation

[0036] 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.

[0037] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "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.

[0038] 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.

[0039] 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.

[0040] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (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, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0041] The field of home appliance technology encompasses a wide range of product categories, including but not limited to air conditioners, refrigerators, washing machines, microwave ovens, dishwashers, and vacuum cleaners. Air conditioners, as the core appliance for regulating indoor environments, come in various forms such as wall-mounted, central, and window models, allowing users to choose different types for different scenarios.

[0042] Window air conditioners, characterized by their simple installation and integrated design, remain widely used in apartments and small offices. They integrate core components such as the compressor, evaporator, and condenser into a single unit, which operates by being embedded in a window or wall. Typically, window air conditioners have a deflector at the indoor air outlet, which can rotate to deliver air at different angles.

[0043] Combination Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the air guide frame 3 from a first-person perspective in the prior art. Figure 6 This is a schematic diagram of the existing air guide frame 3 from a second-view perspective. The existing air guide frame 3 is rectangular in orthographic projection. By rotating the motor, the air guide frame 3 can be positioned at different angles. An independent airflow channel is formed inside the air guide frame 3. The airflow is constrained by the angle given by the wall of the air guide frame 3 to adjust the angle of the airflow. However, the airflow delivery distance is not far enough, and the airflow delivery range at the air guide frame is small at the same angle.

[0044] Based on this, the present application provides a window air conditioner. When the air guide frame is in the first position, it can achieve the air collection effect and increase the air delivery distance. When the air guide frame is in the second position, it can achieve the air dispersion effect and increase the air delivery angle.

[0045] The present technical solution will be further described below with reference to the embodiments and accompanying drawings.

[0046] Please see Figures 1 to 4 , Figure 1 This is a schematic diagram of the structure of the window air conditioner 100 disclosed in the embodiments of this application. Figure 2 This is a schematic diagram of a window air conditioner 100 disclosed in this application, omitting the front panel 11. Figure 3 This is a schematic diagram of another structure of the window air conditioner 100 disclosed in this application, omitting the front panel 11. Figure 4 for Figure 3The cross-sectional view at point AA in this application embodiment provides a window air conditioner 100, which is a small air conditioning device that integrates all refrigeration and heating components (such as compressor, evaporator, condenser, etc.) into an integral casing 1 and needs to be installed in a window or a pre-reserved opening in the wall.

[0047] The window air conditioner 100 includes a casing 1 with a cavity inside. The front panel 11 of the casing 1 has an indoor air inlet 11a and an indoor air outlet 11b. The casing 1 needs to be embedded in a window or wall for fixation, which protects the internal components from the influence of the external environment and delivers the processed airflow into the room through the indoor air outlet 11b. In principle, the casing 1 needs to balance sealing and heat dissipation to ensure that the heat from the outdoor space 2b does not leak into the indoor space 2a, while providing structural protection for the air outlet 11b.

[0048] In some embodiments, the window air conditioner 100 includes a partition 2 disposed within the casing 1 to divide the housing into an outdoor space 2b and an indoor space 2a. The outdoor space 2b contains a compressor, an outdoor heat exchanger, and an outdoor fan (not shown in the figure). The indoor space 2a contains an indoor heat exchanger and an indoor fan (not shown in the figure). The indoor fan introduces airflow into the casing 1, where it is heated by the indoor heat exchanger and then delivered into the room through the indoor air outlet 11b. The compressor in the outdoor space 2b compresses the refrigerant, and the outdoor heat exchanger and outdoor fan work together to exchange heat between the refrigerant and the outdoor air (cooling and heat dissipation in summer, heating and heat absorption in winter). The indoor heat exchanger in the indoor space 2a exchanges heat with the indoor air through changes in the refrigerant's state (heat absorption and cooling in summer, heat release and heating in winter). The indoor fan drives indoor air from the indoor unit's air inlet, through the heat exchanger, and out through the indoor air outlet 11b. The partition 2, by preventing the mixing of airflow between the indoor and outdoor spaces, ensures efficient heat exchange and is a structural prerequisite for the air conditioner to achieve its cooling and heating functions.

[0049] In some embodiments, combined with Figures 7 to 10 , Figure 7 This is a schematic diagram of the air guide frame 3 disclosed in the embodiments of this application from a first-view perspective. Figure 8 This is a schematic diagram of the air guide frame 3 disclosed in an embodiment of this application from a second-view perspective. Figure 9 This is a schematic diagram of the air guide frame 3 disclosed in the embodiments of this application from a third-person perspective. Figure 10 for Figure 7The cross-sectional view at point BB shows that the window air conditioner 100 also includes an air guide frame 3, which is rotatably mounted at the indoor air outlet 11b. The air guide frame 3 can rotate between a first position and a second position. The air guide frame 3 includes a first air guide 3b and a second air guide 3c arranged opposite each other, with the area of ​​the first air guide 3b being larger than the area of ​​the second air guide 3c. When the air guide frame 3 is in the first position, along the air outlet direction, the first air guide 3b is located upstream of the second air guide 3c. When the air guide frame 3 is in the second position, along the air outlet direction, the first air guide 3b is located downstream of the second air guide 3c.

[0050] The first position can be any possible position of the air guide frame 3 when the first air guide 3b is located upstream of the air outlet direction of the second air guide 3c (i.e., when the first air guide 3b faces the indoor air outlet 11b); the second position can be any possible position of the air guide frame 3 when the first air guide 3b is located downstream of the air outlet direction of the second air guide 3c (i.e., when the second air guide 3c faces the indoor air outlet 11b).

[0051] The first air guide 3b is located upstream of the second air guide 3c. At this point, the area of ​​the air inlet of the air guide frame 3 is larger than the area of ​​the air outlet, forming a pressurized flow channel with an inlet area larger than the outlet area. According to the law of conservation of flow... ( (where u is the flow rate, A is the flow velocity, and A is the cross-sectional area of ​​the flow channel). With a constant flow rate, decreasing the cross-sectional area of ​​the flow channel along the air outlet direction increases the air velocity u, thus increasing the air velocity at the outlet. This enhances the penetration of the airflow, effectively expanding the air delivery distance and solving the problem of slow cooling or heating in distant areas due to weak airflow in traditional window air conditioners 100. The first air guide 3b is downstream of the second air guide 3c. At this point, the outlet area of ​​the air guide frame 3 is larger than the inlet area, forming a deceleration flow channel with an inlet area smaller than the outlet area. When the airflow enters the air guide frame 3, it diffuses due to the wall's guiding effect, increasing the outlet angle and allowing the airflow to cover a wider area of ​​the room. This avoids excessive concentration of local airflow and alleviates the problems of narrow airflow range and localized temperature differences common in traditional models.

[0052] It should be noted that, in this embodiment, the cross-sectional shape of the sidewall between the first air guide 3b and the second air guide 3c of the air guide frame 3 along the air outlet direction can be stepped, straight, curved, etc., and this embodiment does not limit it.

[0053] In some embodiments, combined with Figure 8 , Figure 8 The image shows a front view of the air guide frame 3 along the air outlet direction. The air guide frame 3 forms the air guide channel 3a. Figure 10Along the direction from the first air guide 3b to the second air guide 3c, the cross-sectional area of ​​the air guide channel 3a perpendicular to the air outlet direction gradually decreases.

[0054] The gradually decreasing cross-sectional area of ​​the air guide channel 3a creates a smooth transition between the first air guide 3b and the second air guide 3c, reducing airflow turbulence and energy loss within the channel. When the air guide frame 3 is in the first position (the first air guide 3b is the air inlet and the second air guide 3c is the air outlet), this gradual contraction design allows the airflow to accelerate more smoothly during flow, avoiding eddies caused by abrupt changes in cross-section. This ensures that the airflow velocity is increased while maintaining airflow stability, thereby more effectively extending the air delivery distance and resulting in more concentrated and penetrating airflow. When the air guide frame 3 rotates to the second position (the second air guide 3c is the air inlet and the first air guide 3b is the air outlet), the airflow direction is from the end with the smaller cross-sectional area to the end with the larger cross-sectional area, forming a diffusion channel. The smooth transition of the channel wall can guide the airflow to diffuse evenly, avoiding turbulence or sudden drop in local flow velocity during the diffusion process. This makes the expansion of the air supply angle more uniform, the coverage area more stable, reduces local temperature differences caused by uneven airflow diffusion, and improves the overall consistency of indoor temperature regulation.

[0055] Furthermore, this gradient airflow channel 3a design also reduces noise as airflow passes through the airflow guide frame 3. Because the airflow is smoother within the smooth channel, the vibration and noise generated by turbulent impact are weakened, optimizing the airflow effect while ensuring the quiet operation of the air conditioner, further enhancing the user experience.

[0056] It should be noted that the inner wall surface of the air guide frame 3 can be either a flat surface or a curved surface, and this embodiment does not limit it.

[0057] In some embodiments, combined with Figure 3 and Figure 8 In the vertical direction, the width of the second air guide 3c gradually increases from top to bottom along the horizontal direction.

[0058] For cooling mode, considering the physical properties of cold air, its higher density leads to a natural tendency to sink, which can cause traditional air conditioners to have insufficient airflow coverage in the upper area and excessively concentrated airflow in the lower area. When the air guide frame 3 is in the first position, the second air guide vent 3c acts as the air outlet. Its narrow top and wide bottom, combined with the fluid dynamics principle that "the smaller the cross-section, the greater the velocity," allows the airflow at the top of the vent to achieve a higher velocity, while the airflow at the bottom, due to its wider cross-section, has a relatively lower velocity. This velocity difference counteracts the natural sinking tendency of cold air; the high-speed airflow at the top has greater kinetic energy and can achieve air delivery over a longer distance, while the low-speed airflow at the bottom covers the lower and middle areas with moderate diffusion, ultimately forming a uniform airflow distribution from top to bottom, avoiding the drawback of cold air concentrating at the bottom of the room.

[0059] Optionally, in the vertical direction, the width of the first air guide 3b gradually increases from top to bottom in the horizontal direction, ensuring that when either the first air guide 3b or the second air guide 3c is used as an air outlet, the airflow passing through the top of the air guide can obtain a greater flow velocity, counteracting the natural sinking trend of cold air and enabling air delivery over a longer distance.

[0060] In some embodiments, combined with Figure 10 The air guide frame 3 includes a first sidewall 31 and a second sidewall 32 arranged opposite to each other. The arrangement direction of the first sidewall 31 and the second sidewall 32 is perpendicular to the air outlet direction and perpendicular to the extension direction of the rotation axis 35 of the air guide frame 3, pointing from the first air guide port 3b to the second air guide port 3c. The distance between the first sidewall 31 and the second sidewall 32 gradually decreases. The angle between the first sidewall 31 and the second sidewall 32 along the air outlet direction is α, where 3° < α < 20°.

[0061] When the included angle α is too small (≤3°), the contraction of the air guide channel 3a is small. At this time, the acceleration effect of the airflow in the channel is not obvious, and it is difficult to form a sufficient increase in flow velocity, resulting in a short air delivery distance, which cannot meet the temperature regulation needs of long-distance areas. At the same time, when the air guide frame 3 is in the second position, the diffusion effect is poor and the coverage area is narrow. The problem of concentrated air outlet and uneven coverage of traditional window air conditioners 100 still exists.

[0062] When the included angle α is too large (≥20°), the air guide channel 3a contracts too steeply. When the air guide frame 3 is in the first position, the airflow is prone to severe turbulence and eddies due to the sudden change in cross-section when flowing rapidly through the channel, resulting in energy loss. This not only weakens the flow velocity enhancement effect but also generates significant noise due to the airflow impacting the channel wall. In addition, excessively rapid contraction may cause some airflow to form backflow within the channel, which reduces the air outlet efficiency. At the same time, the air outlet direction is prone to deviation, making it difficult to form a stable air supply path.

[0063] When the included angle α is within the range of 3° < α < 20°, it ensures that the air guide channel 3a forms an effective flow collection effect, allowing the airflow to accelerate steadily during a smooth transition and significantly increasing the air delivery distance. At the same time, it avoids turbulence and noise problems caused by excessive contraction. Within this angle range, the energy loss of the airflow is small when flowing along the sidewall, and the air delivery stability is strong. At the same time, a moderate contraction angle can balance the relationship between the increase in flow velocity and the diffusion of airflow, so that a certain coverage range can still be maintained when delivering air over long distances, achieving synergistic optimization of long-distance air delivery and expanded coverage.

[0064] The angle α between the first sidewall 31 and the second sidewall 32 along the air outlet direction can be 3°<α<10°, 8°<α<15°, 14°<α<20°, etc., and can be 5°, 10° or 19° for example. Taking an angle α of 10° between the first sidewall 31 and the second sidewall 32 along the air outlet direction as an example, it can ensure both air collection and dispersion effects, while reducing turbulence and noise problems.

[0065] In some embodiments, combined with Figure 8 The second air guide 3c includes a first edge 311 and a second edge 321 arranged perpendicular to the air outlet direction and opposite to each other in the horizontal direction. The angle between the first edge 311 and the second edge 321 in the vertical direction is β, where 3° < β < 20°.

[0066] When the included angle β is too small (≤3°), the difference in horizontal width between the top and bottom of the second air guide 3c is too small. At this time, the airflow passing through the air guide has little difference in vertical velocity. The airflow at the top cannot obtain enough kinetic energy to counteract the natural sinking trend. The problem of cold air concentrating in the lower part of the room and hot air accumulating in the upper part will still occur. The similar vertical velocity leads to uneven airflow coverage in the vertical direction, making it impossible to form a complete airflow circulation from top to bottom, and reducing the overall cooling efficiency of the room.

[0067] When the included angle β is too large (≥20°), the top width of the second air guide 3c is too narrow and the bottom width is too wide, resulting in an excessively large difference in airflow velocity in the vertical direction. Excessive airflow velocity at the top can easily create localized strong winds, which may bounce back after blowing directly onto the ceiling of the room, causing airflow turbulence. Conversely, excessively slow airflow velocity at the bottom will fail to cover the lower and middle areas of the room, resulting in an imbalance of strong airflow at the top and weak airflow at the bottom. This not only affects the uniformity of temperature regulation but may also cause discomfort to users due to localized strong winds.

[0068] When the included angle β is within the range of 3° < β < 20°, the width of the second air guide 3c gradually changes vertically. This allows the airflow at the top to achieve a reasonable increase in velocity, effectively counteracting the downward force of cold air and achieving effective coverage of the upper space of the room. The airflow at the bottom maintains an appropriate velocity, spreading evenly to the middle and lower areas, ultimately forming a continuous airflow circulation from top to bottom. This angle range avoids the problem of cold air sinking due to insufficient velocity difference, while also preventing airflow turbulence caused by excessive difference. This allows the cold air to be distributed more evenly in the vertical direction, significantly improving the overall cooling efficiency and user comfort of the room.

[0069] The vertical angle β between the first edge 311 and the second edge 321 can be 3°<α<10°, 8°<α<15°, 14°<α<20°, etc., and can be 5°, 10° or 19° for example. Taking an angle β of 10° between the first edge 311 and the second edge 321 as an example, it can avoid the problem of cold air sinking caused by insufficient flow velocity difference, and also prevent airflow turbulence caused by excessive vertical width difference.

[0070] In some embodiments, combined with Figure 3 , Figure 8 and Figure 11 , Figure 11 for Figure 3 A partial enlarged view at point C shows that the window air conditioner 100 also includes an air duct component 4, which is disposed in the indoor space 2a. An air duct is formed within the air duct component 4. The air inlet of the air duct is connected to the air outlet side of the indoor fan, that is, connected to the air outlet of the indoor fan. The air outlet of the air duct is connected to the indoor air outlet 11b. An air guide frame 3 is disposed at the air outlet of the air duct. The air guide frame 3 has a rotating shaft 35 extending in the vertical direction. The rotating shaft 35 is rotatably connected to the air duct component 4 so that the air guide frame 3 rotates around the rotating shaft 35.

[0071] The vertical rotation axis 35 allows the air guide frame 3 to rotate left and right on the horizontal plane around the vertical axis, which can change the air outlet angle of the window air conditioner 100 in the horizontal direction. The vertically rotating air guide frame 3 can flexibly adjust the air supply direction according to the room layout, such as deflecting to the left or right, so that the airflow can more accurately cover areas such as sofas and beds, enhancing the user experience.

[0072] When the air guide frame 3 rotates around the vertical axis, the user can further adjust the horizontal airflow direction while selecting either the long-distance strong airflow mode or the short-distance wide coverage mode. This combined adjustment method makes the airflow more suitable for actual usage scenarios and enhances the user experience.

[0073] In some embodiments, combined with Figure 1 The indoor air outlet 11b is provided with multiple air guide blades 5 arranged at intervals along the vertical direction. The air guide blades 5 can swing around the horizontal axis.

[0074] The horizontal axis of the air guide blade 5 allows it to swing up and down, delivering airflow upwards to the top of the room or downwards to cover the middle and lower areas as needed. On the other hand, the air guide blade 5 can work in conjunction with the air guide frame 3. For example, when the air guide frame 3 is in pressurized remote delivery mode, the high-speed airflow can be allowed to break through the height limit and cover the upper space deep in the room by swinging the grille upwards. When it is in diffusion and wide coverage mode, the airflow can be evenly dispersed in the vertical direction by fine-tuning the grille, avoiding strong winds blowing directly on people.

[0075] The air guide vane 5 can be manually adjusted to swing up and down.

[0076] Specifically, the air guide vanes 5 have rotating shafts (not shown in the figure) at both ends along their length. The air duct component 4 has rotating holes on its inner wall along the width of the window air conditioner 100 that mate with the rotating shafts. The rotating shafts can be rotatably connected to the rotating holes via bearings. The window air conditioner 100 also includes a connecting rod (not shown in the figure) extending vertically, which connects to multiple air guide vanes 5 to drive them to rotate synchronously. When the air guide vanes 5 are manually moved up and down around their rotating shafts, the connecting rod moves up and down, causing other air guide vanes 5 to move up and down synchronously around their own rotating shafts. This allows the airflow to be directed in one direction within a certain range, thereby improving the air guiding effect of the air guide vanes 5.

[0077] Optionally, the window air conditioner 100 also includes a drive motor (not shown in the figure), which is located below the duct component 4. The output shaft of the drive motor is connected to a rotating shaft 35 at the bottom of the air guide frame 3, and the drive motor drives the rotating shaft 35 at the bottom to rotate relative to the duct component 4. It is understood that the duct component 4 has mounting holes at both the top and bottom, and the rotating shaft 35 is respectively disposed in the mounting holes. The rotating shaft 35 can be rotatably connected to the mounting holes through bearings.

[0078] There is usually a certain space below the air duct component 4. Placing the drive motor here can make full use of this space and make the layout of the entire device more compact. Moreover, the air guide frame 3 can be placed higher to ensure a larger airflow coverage area.

[0079] Furthermore, using a drive motor to rotate the air guide frame enables precise positioning control, allowing the motor to stably stop the air guide frame in either the first or second position. Secondly, motor adjustment is more stable; the motor-driven rotation of the air guide frame reduces the possibility of jamming or shaking, ensuring a consistently smooth airflow without sudden changes during air guide frame switching. The drive motor is compatible with automated control systems, enabling automatic switching of the air guide frame's rotation position in conjunction with remote controls.

[0080] In some embodiments, combined with Figure 9 and Figure 10 The air guide frame 3 includes a first side wall 31 and a second side wall 32, with the second side wall 32 and the first side wall 31 arranged opposite each other in the horizontal direction; the air guide frame 3 also includes a top wall 33 and a bottom wall 34, with the bottom wall 34 located below the top wall 33 and arranged opposite to the top wall 33 in the vertical direction, and the widths of the first side wall 31, the second side wall 32, the top wall 33 and the bottom wall 34 are equal along the air outlet direction.

[0081] In the entire air guiding channel 3a extending from the first air guiding opening 3b to the second air guiding opening 3c, the boundaries in the horizontal direction (the first and second side walls 32) and the vertical direction (the top and bottom walls 34) always remain parallel and transition uniformly, and channel cross-section deformation caused by an excessively wide or narrow wall surface will not occur. This structure ensures that the constraint conditions in the horizontal and vertical directions are consistent for the airflow during the flow process, and avoids eddy currents or airflow deviation caused by local channel deformation. For example, when the air guiding frame 3 is in the second position, if the width of the top wall 33 is smaller than the width of the side walls, the top airflow may leave the air guiding channel 3a in advance and diffuse into the room, which undermines the stability of the overall flow field; when the widths of all side walls are equal, the airflow can flow smoothly along the preset path, reducing energy loss and ensuring air outlet efficiency.

[0082] In some embodiments, in combination with Figure 3 and Figure 11 , the ratio of the maximum horizontal distance d1 of the first air guiding opening 3b to the width d2 of the air duct outlet along the width direction of the window-type air conditioner 100 is a, where 0.3 < a < 0.7.

[0083] When the ratio a is too small (≤0.3), the horizontal dimension of the first air guiding opening 3b is too small. In this case, most of the airflow will overflow from the gaps on both sides of the air guiding frame 3, and cannot effectively enter the air guiding channel 3a to participate in flow velocity or angle adjustment, resulting in poor current collecting or air diffusing effect of the air guiding frame 3; meanwhile, the overflowed airflow is prone to form turbulence near the air outlet, which not only reduces the air outlet efficiency, but also may generate additional noise and weaken the overall adjustment effect.

[0084] When the ratio a is too large (≥0.7), the horizontal dimension of the first air guiding opening 3b is close to the width of the air duct outlet, the air guiding frame 3 almost completely covers the air duct outlet, so the air guiding frame 3 is not easy to rotate in the air duct and is prone to interfere with the inner wall of the air duct member 4.

[0085] When the ratio a is in the range of 0.3 < a < 0.7, it not only ensures that most of the airflow can enter the air guiding channel 3a for effective adjustment, but also reserves appropriate lateral flow space for the airflow, so that better current collecting and air diffusing effects can be achieved when the air guiding frame 3 is at different positions.

[0086] Wherein, the ratio a of the maximum horizontal distance d1 of the first air guiding opening 3b to the width d2 of the air duct outlet along the width direction of the window-type air conditioner 100 can satisfy 0.3 < α < 0.5, 0.4 < α < 0.7, etc., and can exemplarily be 0.4, 0.5 or 0.6. Taking the ratio a of the maximum horizontal distance d1 of the first air guiding opening 3b to the width d2 of the air duct outlet along the width direction of the window-type air conditioner 100 as an example, this arrangement not only ensures that most of the airflow can enter the air guiding channel 3a for effective adjustment, but also reserves appropriate lateral flow space for the airflow, so that better current collecting and air diffusing effects can be achieved when the air guiding frame 3 is at different positions.

[0087] In some embodiments, in combination with Figure 3 and Figure 11 , in the vertical direction, the ratio of the distance H1 between the top wall 33 and the bottom wall 34 to the height H2 of the air outlet of the air duct is b, and 0.7 < b < 1.

[0088] When the ratio b is too small (≤0.7), the distance H1 between the top wall 33 and the bottom wall 34 (the height of the air guide frame 3) is too small, which means that the constraint range of the air guide frame 3 on airflow in the vertical direction is too narrow. At this time, a large amount of airflow will overflow from the top or bottom of the air guide frame 3 and cannot enter the air guide channel 3a. The overflowed airflow is likely to form turbulent airflow in the upper and lower areas of the air outlet, which damages the stability of the overall flow field, reduces the air outlet efficiency, and affects user experience.

[0089] When the ratio b is in the range of 0.7 < b < 1, most of the airflow in the vertical direction can enter the air guide channel 3a to achieve the effect of collecting or dispersing airflow in a limited space.

[0090] Wherein, the ratio b of the distance H1 between the top wall 33 and the bottom wall 34 to the height H2 of the air outlet of the air duct can be 0.7<α<0.85, 0.8<α<1, etc., and can be exemplarily 0.75, 0.8 or 0.95. Taking the ratio b of the distance H1 between the top wall 33 and the bottom wall 34 to the height H2 of the air outlet of the air duct as 0.8 as an example, it ensures that most of the airflow in the vertical direction can enter the air guide channel 3a to achieve the effect of collecting or dispersing airflow.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it is still possible to modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some or all of the technical features; and these modifications or substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A window air conditioner, characterized in that, include: The housing has a receiving cavity formed inside it, and the housing is provided with an indoor air outlet. A partition is provided inside the housing to divide the receiving cavity into an outdoor space and an indoor space. The outdoor space is equipped with a compressor, an outdoor heat exchanger, and an outdoor fan. The indoor space is equipped with an indoor heat exchanger and an indoor fan. The indoor fan is used to introduce airflow into the housing, and after heat exchange by the indoor heat exchanger, it is sent into the room through the indoor air outlet. An air guide frame is rotatably disposed at the indoor air outlet. The air guide frame can rotate between a first position and a second position. The air guide frame includes a first air guide port and a second air guide port that are disposed opposite to each other. The area of ​​the first air guide port is larger than the area of ​​the second air guide port. When the air guide frame is in the first position, along the air outlet direction, the first air guide port is located upstream of the second air guide port. When the air guide frame is in the second position, along the air outlet direction, the first air guide port is located downstream of the second air guide port.

2. The window air conditioner according to claim 1, characterized in that, The air guide frame forms an air guide channel, and along the direction from the first air guide opening to the second air guide opening, the cross-sectional area of ​​the air guide channel perpendicular to the air outlet direction gradually decreases.

3. The window air conditioner according to claim 1, characterized in that, In the vertical direction, the width of the second air guide gradually increases from top to bottom along the horizontal direction.

4. The window air conditioner according to claim 2, characterized in that, The air guide frame includes a first sidewall and a second sidewall arranged opposite to each other. The first sidewall and the second sidewall are arranged perpendicular to the air outlet direction and perpendicular to the extension direction of the rotation axis of the air guide frame. The angle between the first sidewall and the second sidewall along the air outlet direction is α, where 3° < α < 20°.

5. The window air conditioner according to claim 3, characterized in that, The second air guide includes a first edge and a second edge arranged opposite each other in the horizontal direction and perpendicular to the air outlet direction. The angle between the first edge and the second edge in the vertical direction is β, where 3° < β < 20°.

6. The window air conditioner according to claim 1, characterized in that, The window air conditioner also includes: A duct component is installed in the indoor space, and a duct is formed inside the duct component. The air inlet of the duct is connected to the air outlet side of the indoor fan, and the air outlet of the duct is connected to the indoor air outlet. The air guide frame is disposed at the air outlet of the air duct. The air guide frame is provided with a rotating shaft extending in a vertical direction. The rotating shaft is rotatably connected to the air duct component so that the air guide frame rotates around the rotating shaft.

7. The window air conditioner according to claim 6, characterized in that, The indoor air outlet is provided with multiple air guide blades spaced at intervals along the vertical direction, and the air guide blades can swing around a horizontal axis.

8. The window air conditioner according to claim 1, characterized in that, The air guide frame includes: First sidewall; The second sidewall is arranged opposite to the first sidewall in a horizontal direction; Top wall; The bottom wall is located below the top wall and is vertically opposite to the top wall. Along the air outlet direction, the widths of the first side wall, the second side wall, the top wall, and the bottom wall are equal.

9. The window air conditioner according to claim 1, characterized in that, The window air conditioner also includes: A duct component is installed in the indoor space, and a duct is formed inside the duct component. The air inlet of the duct is connected to the air outlet side of the indoor fan, and the air outlet of the duct is connected to the indoor air outlet. The air guide frame is disposed at the air outlet of the air duct, and the ratio of the maximum horizontal distance of the first air guide opening to the width of the air outlet of the air duct along the width direction of the window air conditioner is a, 0.

3. <a<0.7。 10. The window air conditioner according to claim 1, characterized in that, The window air conditioner also includes: A duct component is installed in the indoor space, and a duct is formed inside the duct component. The air inlet of the duct is connected to the air outlet side of the indoor fan, and the air outlet of the duct is connected to the indoor air outlet. The air guide frame also includes components spaced at intervals along the vertical direction: Top wall; A bottom wall is located below the top wall, and in the vertical direction, the ratio of the distance between the top wall and the bottom wall to the height of the air outlet of the air duct is b, which is 0.

7. <b<1。

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