Air conditioner
By designing a funnel-shaped, gradually expanding connecting channel in the air supply duct of the air conditioner, the problem of air volume loss caused by the resistance of sudden airflow expansion is solved, resulting in greater air volume and a better user experience.
Patent Information
- Application Number
- CN202520159654.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-22
AI Technical Summary
In existing air conditioners, after the fan blows air into the duct, the sudden increase in the flow area causes the airflow to encounter sudden expansion resistance, resulting in a significant loss of air volume and a poor user experience.
Design an air conditioner whose air supply duct includes a connecting channel with a gradually expanding funnel-shaped structure. As the airflow passes through, the flow area gradually increases to avoid sudden expansion resistance. The fan assembly directs the airflow sequentially through the connecting channel, the heat exchanger, and the air outlet.
By gradually expanding the connecting flow channel structure, the air volume of the air conditioner is increased, thus improving the user experience.
Smart Images
Figure CN223795359U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of household appliance technology, such as an air conditioner. Background Technology
[0002] With societal development, air conditioners have become increasingly widespread. Air conditioners incorporate finned tube heat exchangers to exchange heat with the air flowing through them, achieving indoor cooling or heating. As user demands for air conditioners increase, these devices are increasingly designed for larger airflow volumes. Given the same heat exchange area, a larger airflow volume is more beneficial for improving the heat exchanger's heat transfer coefficient, resulting in a more efficient heat exchange process. Furthermore, a larger airflow volume allows for faster temperature control of the indoor environment.
[0003] In related technologies, to increase the air volume of an air conditioner, the fan speed or size is usually increased to directly increase the fan's air delivery capacity.
[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:
[0005] In existing air conditioners, the fan blows air into the duct, but the sudden increase in the flow area causes a sudden expansion resistance to the airflow, resulting in a significant loss of air volume. Therefore, the user experience remains poor.
[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.
[0008] This disclosure provides an air conditioner with a connecting flow channel that gradually expands in a funnel shape. This allows the airflow area to gradually increase as airflow passes through the connecting flow channel, preventing sudden expansion resistance and further increasing the air volume of the air conditioner, thereby improving the user experience.
[0009] This disclosure provides an air conditioner comprising: a casing, a heat exchanger, and a fan assembly. The casing is provided with an air supply duct, which includes a connecting channel and an air outlet; the heat exchanger is disposed in the air supply duct and located between the connecting channel and the air outlet; the fan assembly includes a volute, which is connected to the connecting channel, and the fan assembly can blow air from the volute into the air supply duct, so that the air flows sequentially through the connecting channel, the heat exchanger, and the air outlet; wherein, the sidewall of the connecting channel is bent outward along the air flow direction in a manner away from the centerline of the connecting channel.
[0010] In some embodiments, the curvature of the sidewall of the connecting channel is a first curvature K; wherein, the first curvature K is less than or equal to 20m. -1 .
[0011] In some embodiments, the connecting channel includes an air inlet end, and the volute is connected to the air inlet end; the cross-sectional area of the air inlet end is a first cross-sectional area A1, and the maximum cross-sectional area of the connecting channel is a second cross-sectional area A2; wherein the ratio of the second cross-sectional area A2 to the first cross-sectional area A1 is less than or equal to 3.
[0012] In some embodiments, the connecting channel further includes an air outlet end disposed toward the air supply port, the cross-sectional area of the air outlet end being a third cross-sectional area A3, and the cross-sectional area of the air supply port being a fourth cross-sectional area A4; wherein the third cross-sectional area A3 is greater than the fourth cross-sectional area A4.
[0013] In some embodiments, the air supply duct further includes an air outlet duct. The air outlet duct is disposed between the connecting duct and the air outlet, and is used to connect the air outlet end of the connecting duct and the air outlet; wherein, the heat exchanger is disposed in the air outlet duct.
[0014] In some embodiments, the side wall of the air outlet duct near the air inlet is provided with a bend, which extends inward along the air flow direction toward the center line of the air outlet duct.
[0015] In some embodiments, the bending angle of the bent portion is a first included angle α; wherein the first included angle α is greater than or equal to 90° and less than or equal to 225°.
[0016] In some embodiments, the air outlet duct and the connecting duct are bent and connected, and the angle between the side wall of the air outlet duct and the side wall of the connecting duct is a second included angle b; wherein the second included angle b is greater than or equal to 90° and less than or equal to 225°.
[0017] In some embodiments, the volute includes an air outlet that is connected to an air inlet end of a connecting duct; wherein the shape of the air outlet is the same as the shape of the air inlet end, and the size of the air outlet is the same as the size of the air inlet end.
[0018] In some embodiments, the air conditioner further includes a drip tray. The drip tray is disposed below the heat exchanger, and the area of the drip tray is greater than or equal to the projected area of the heat exchanger in a horizontal plane.
[0019] An air conditioner provided in this disclosure can achieve the following technical effects:
[0020] This disclosure provides an air conditioner comprising: a casing, a heat exchanger, and a fan assembly. The casing has an air supply duct, which includes a connecting channel and an air outlet. The heat exchanger is disposed within the air supply duct and located between the connecting channel and the air outlet. The fan assembly includes a volute connected to the connecting channel. The fan assembly blows air from the volute into the air supply duct, allowing air to flow sequentially through the connecting channel, the heat exchanger, and the air outlet. The sidewall of the connecting channel extends outwards in a curved manner, away from its centerline, along the airflow direction. The fan assembly also includes a fan body disposed within the volute. When the air conditioner is turned on, the fan body blows air from the volute into the connecting channel, then through the connecting channel to the air outlet and into the room. Because the sidewall of the connecting channel is a gradually expanding curved surface, the airflow area gradually increases as the airflow passes through the connecting channel to avoid sudden expansion resistance, thereby increasing the air volume of the air conditioner and improving the user experience.
[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description
[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:
[0023] Figure 1 This is a schematic diagram of the structure of an air conditioner provided in an embodiment of this disclosure;
[0024] Figure 2 This is a schematic diagram of the structure of another air conditioner provided in an embodiment of this disclosure;
[0025] Figure 3 This is a schematic diagram of the structure of another air conditioner provided in an embodiment of this disclosure;
[0026] Figure 4 This is a schematic diagram of the structure of another air conditioner provided in an embodiment of this disclosure;
[0027] Figure 5 This is a schematic diagram of the structure of another air conditioner provided in an embodiment of this disclosure;
[0028] Figure 6 This is a schematic diagram of the structure of another air conditioner provided in an embodiment of this disclosure;
[0029] Figure 7 This is a schematic diagram of the structure of another air conditioner provided in an embodiment of this disclosure;
[0030] Figure 8 This is a schematic diagram of the structure of an existing air conditioner provided in an embodiment of this disclosure.
[0031] Figure label:
[0032] 10: Housing; 11: Air supply duct; 111: Connecting flow channel; 112: Air outlet flow channel; 12: Air outlet;
[0033] 20: Fan assembly; 21: Volute; 22: Fan body;
[0034] 31: Heat exchanger; 32: Water receiving tray. Detailed Implementation
[0035] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.
[0036] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.
[0037] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.
[0038] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.
[0039] Unless otherwise stated, the term "multiple" means two or more.
[0040] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.
[0041] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.
[0042] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.
[0043] like Figures 1 to 7 As shown in the figure, this embodiment of the present disclosure provides an air conditioner with a connecting flow channel 111, which has a gradually expanding funnel-shaped structure. In this way, as airflow passes through the connecting flow channel 111, the airflow area gradually increases to avoid sudden expansion resistance, further increasing the air volume of the air conditioner and thus improving the user experience.
[0044] like Figures 1 to 7As shown, this embodiment of the present disclosure provides an air conditioner including: a casing, a heat exchanger 31, and a fan assembly 20. The casing is provided with an air supply duct 11, which includes a connecting channel 111 and an air outlet 12; the heat exchanger 31 is disposed in the air supply duct 11 and is located between the connecting channel 111 and the air outlet 12; the fan assembly 20 includes a volute 21, which is connected to the connecting channel 111, and the fan assembly 20 can blow air from the volute 21 into the air supply duct 11, so that the air flows sequentially through the connecting channel 111, the heat exchanger 31, and the air outlet 12; wherein, the side wall of the connecting channel 111 is bent outward along the air flow direction in a manner away from the center line of the connecting channel 111.
[0045] Specifically, the fan assembly 20 also includes a fan body 22, which is disposed within a volute 21. The volute 21 includes an air outlet and is connected to a connecting channel through the air outlet. A heat exchanger 31 is disposed within the air supply duct 11 for exchanging heat with the airflow passing through it. The fan body 22 can drive the airflow within the volute 21 to flow into the air supply duct 11, and cause the airflow to flow sequentially through the connecting channel 111, the heat exchanger 31, and the air outlet 12, and then be blown into the room through the air outlet 12.
[0046] Understandably, to improve the heat exchange efficiency of heat exchanger 31, its size is generally relatively large, which leads to a larger size for the air supply duct 11 used to install heat exchanger 31. Simultaneously, to reduce the overall size of the air conditioner, the size of the volute 21 is minimized, resulting in the air outlet size of the volute 21 generally being smaller than the air supply duct 11. Therefore, when airflow from the volute 21 into the air supply duct 11 in existing air conditioners, the sudden increase in flow area causes a backflow vortex phenomenon and generates sudden expansion resistance, which reduces the air supply capacity of the air conditioner. Figure 8 As shown.
[0047] like Figures 1 to 7 As shown, the air conditioner provided in this application has a connecting channel 111 in the air supply duct 11, which serves as a transition for the volute 21. Because the sidewall of the connecting channel 111 extends outward along the airflow direction in a manner opposite to its centerline, the sidewall of the connecting channel 111 has a gradually expanding, funnel-shaped structure. Thus, as airflow passes through the connecting channel 111, the airflow area gradually increases, avoiding sudden expansion resistance and further increasing the air volume of the air conditioner, thereby improving the user experience.
[0048] In some embodiments, the curvature of the sidewall of the connecting channel 111 is a first curvature K; wherein the first curvature K is less than or equal to 20m-1.
[0049] Specifically, the curvature of the sidewall of the connecting channel 111 affects the flow area of the airflow within the connecting channel 111. If the curvature of the connecting channel 111 is too large, it may generate sudden expansion resistance, thereby affecting the airflow rate. Therefore, the user can set the first curvature K of the sidewall of the connecting channel 111 according to actual needs, and the first curvature K is less than or equal to 20 m⁻¹. For example, the first curvature K can be 5 m⁻¹, 10 m⁻¹, 15 m⁻¹, or 20 m⁻¹.
[0050] like Figure 2 As shown, in some embodiments, the connecting channel 111 includes an air inlet end, and the volute 21 is connected to the air inlet end; the cross-sectional area of the air inlet end is a first cross-sectional area A1, and the maximum cross-sectional area of the connecting channel 111 is a second cross-sectional area A2; wherein the ratio of the second cross-sectional area A2 to the first cross-sectional area A1 is less than or equal to 3.
[0051] Specifically, the air outlet of the volute 21 is connected to the air inlet of the connecting channel 111, thus enabling communication between the volute 21 and the connecting channel 111. Since the sidewall of the connecting channel 111 is configured to extend outwards in a curved manner away from its centerline along the airflow direction, the cross-sectional area of the portion of the connecting channel 111 near the heat exchanger 31 is larger than the cross-sectional area of the air inlet of the connecting channel 111. The cross-sectional area of the air inlet of the connecting channel 111 can be set according to the dimensions of the volute 21, and the maximum cross-sectional area of the connecting channel 111 can be set according to the dimensions of the heat exchanger 31 and the air supply duct 11. The ratio of the second cross-sectional area A2 to the first cross-sectional area A1 is less than or equal to 3. For example, the ratio of the second cross-sectional area A2 to the first cross-sectional area A1 is 1, 1.5, 2, 2.5, or 3.
[0052] like Figure 2 As shown, in some embodiments, the connecting channel 111 further includes an air outlet end disposed toward the air outlet 12, the cross-sectional area of the air outlet end being a third cross-sectional area A3, and the cross-sectional area of the air outlet 12 being a fourth cross-sectional area A4; wherein, the third cross-sectional area A3 is greater than the fourth cross-sectional area A4.
[0053] Specifically, if the air outlet 12 of the air conditioner is too large, it will reduce the overall air supply capacity of the air conditioner. At the same time, if the air outlet of the connecting channel 111 is too large, it will not match the size of the heat exchanger 31, resulting in insufficient heat exchange between the airflow and the heat exchanger 31. Therefore, making the third cross-sectional area A3 of the air outlet larger than the fourth cross-sectional area A4 of the air outlet 12 can increase the contact area between the airflow and the heat exchanger 31 while ensuring the air supply capacity of the air conditioner, so as to achieve sufficient heat exchange between the airflow and the heat exchanger 31, thereby improving the heat exchange capacity of the heat exchanger 31.
[0054] In the above embodiments, the cross-sectional area refers to the cross-sectional area of the corresponding portion perpendicular to the center line of the air supply duct 11.
[0055] like Figures 4 to 7 As shown, in some embodiments, the air supply duct 11 further includes an air outlet duct 112. The air outlet duct 112 is disposed between the connecting duct 111 and the air outlet 12, and the air outlet duct 112 is used to connect the air outlet end of the connecting duct 111 and the air outlet 12; wherein, the heat exchanger 31 is disposed in the air outlet duct 112.
[0056] Specifically, the air outlet duct 112 connects the connecting duct 111 and the air outlet 12. The airflow in the air outlet duct 11 flows sequentially through the connecting duct 111 and the air outlet duct 112, and is then blown into the room through the air outlet 12. In this way, the air outlet duct 11 can act as a transition between the connecting duct 111 and the air outlet 12, so as to avoid the sudden change in size between the air outlet duct 11 and the air outlet 12 affecting the air supply capacity of the air conditioner.
[0057] like Figures 4 to 7 As shown, in some embodiments, the side wall of the air outlet 112 near the air inlet 12 is provided with a bend, which extends inward along the air flow direction toward the center line of the air outlet 112.
[0058] Specifically, the air outlet duct 112 is also provided with a mounting section for mounting the heat exchanger 31. The mounting section is located on the side of the bend near the connecting duct 111, and the bend is bent and connected to the mounting section. Since the heat exchanger 31 is mounted on the mounting section, the size of the mounting section is larger than the size of the air outlet 12. Thus, by providing a bend on the side of the air outlet duct 112 near the air outlet 12, so that the side wall of the air outlet duct bends inward along the air flow direction toward the centerline of the air outlet duct 112, the size of the air outlet 12 can be better adapted.
[0059] like Figure 7 As shown, in some embodiments, the bending angle of the bent portion is a first included angle α; wherein the first included angle α is greater than or equal to 90° and less than or equal to 225°.
[0060] Specifically, the bending angle of the bending portion refers to the angle between the side wall of the bending portion and the side wall of the mounting portion. The first angle α is greater than or equal to 90° and less than or equal to 225°. For example, the first angle α can be 90°, 120°, 150°, 180°, or 225°.
[0061] like Figure 7 As shown, in some embodiments, the air outlet duct 112 is bent and connected to the connecting duct 111, and the angle between the side wall of the air outlet duct 112 and the side wall of the connecting duct 111 is a second included angle b; wherein, the second included angle b is greater than or equal to 90° and less than or equal to 225°.
[0062] Specifically, the mounting portion of the air outlet duct 112 is bent and connected to the connecting duct 111, and the mounting portion of the air outlet duct 112 extends inward along the airflow direction, bending towards the centerline of the air outlet duct 112. In this way, as the airflow moves from the connecting duct 111 to the air outlet 12, the airflow area gradually decreases, avoiding any impact on the airflow capacity of the air conditioner due to sudden changes in the airflow area. The second included angle b is greater than or equal to 90° and less than or equal to 225°. For example, the second included angle b can be 90°, 120°, 150°, 180°, or 225°.
[0063] like Figures 1 to 7 As shown, in some embodiments, the volute 21 includes an air outlet that is connected to the air inlet end of the connecting air duct; wherein the shape of the air outlet is the same as the shape of the air inlet end, and the size of the air outlet is the same as the size of the air inlet end.
[0064] Specifically, the size and shape of the air outlet of the volute 21 are set to correspond to the size and shape of the air inlet of the connecting channel 111, so that the air outlet of the volute 21 is more compatible with the air inlet of the connecting channel 111, thereby improving the flow rate and velocity of the airflow.
[0065] Optionally, a seal is provided at the connection between the air outlet of the volute 21 and the air inlet of the connecting channel 111 to prevent airflow leakage from the connection.
[0066] like Figure 2 and Figure 5 As shown, in some embodiments, the air conditioner further includes a water collection tray 32. The water collection tray 32 is disposed below the heat exchanger 31, and the area of the water collection tray 32 is greater than or equal to the projected area of the heat exchanger 31 in the horizontal plane.
[0067] Specifically, the water receiving tray 32 is located directly below the heat exchanger 31, and the area of the water receiving tray 32 is greater than or equal to the projected area of the heat exchanger 31 on the horizontal plane, so that the projection of the heat exchanger 31 on the water receiving tray 32 falls completely into the water receiving tray 32, thereby ensuring that the condensate generated by the heat exchanger 31 can drip completely into the water receiving tray 32.
[0068] Optionally, the water receiving tray 32 is disposed on the lower side wall of the air supply duct 11, and the water receiving tray 32 and the air supply duct 11 are configured as an integrated structure.
[0069] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.
Claims
1. An air conditioner characterized by comprising: The air conditioner comprises: a cabinet provided with a supply air duct, the supply air duct comprising a connecting flow channel and a supply air port; a heat exchanger arranged in the supply air duct, and the heat exchanger being located between the connecting flow channel and the supply air port; and a fan assembly comprising a volute, the volute being in communication with the connecting flow channel, and the fan assembly being capable of blowing air in the volute into the supply air duct so that the air flows through the connecting flow channel, the heat exchanger and the supply air port in sequence. The side wall surface of the connecting flow channel is arranged in a form of extending outwardly away from the center line of the connecting flow channel along the air flow direction.
2. The air conditioner according to claim 1, wherein the curvature of the side wall surface of the connecting flow channel is a first curvature K. wherein the first curvature K is less than or equal to 20 m -1 .
3. The air conditioner according to claim 1, wherein the connecting flow channel comprises an air inlet end, and the volute is in communication with the air inlet end; the cross-sectional area of the air inlet end is a first cross-sectional area A1, and the maximum cross-sectional area of the connecting flow channel is a second cross-sectional area A2; the ratio of the second cross-sectional area A2 to the first cross-sectional area A1 is less than or equal to 3.
4. The air conditioner according to claim 1, wherein the connecting flow channel further comprises an air outlet end arranged towards the supply air port, the cross-sectional area of the air outlet end is a third cross-sectional area A3, and the cross-sectional area of the supply air port is a fourth cross-sectional area A4; the third cross-sectional area A3 is greater than the fourth cross-sectional area A4.
5. The air conditioner of claim 4, wherein The supply air duct further comprises: an air outlet flow channel arranged between the connecting flow channel and the supply air port, the air outlet flow channel being used to connect the air outlet end of the connecting flow channel and the supply air port; the heat exchanger is arranged in the air outlet flow channel.
6. The air conditioner according to claim 5, wherein the side wall surface of the air outlet flow channel on the side close to the supply air port is provided with a bending portion, and the bending portion is arranged in a form of extending inwardly towards the center line of the air outlet flow channel along the air flow direction.
7. The air conditioner according to claim 6, wherein the bending angle of the bending portion is a first included angle a; the first included angle a is greater than or equal to 90° and less than or equal to 225°.
8. The air conditioner according to claim 5, wherein the air outlet flow channel is bently connected with the connecting flow channel, and the included angle between the side wall surface of the air outlet flow channel and the side wall surface of the connecting flow channel is a second included angle b; the second included angle b is greater than or equal to 90° and less than or equal to 225°.
9. The air conditioner according to claim 3, wherein the volute comprises an air outlet port, and the air outlet port is in communication with the air inlet end of the connecting flow channel; the shape of the air outlet port is the same as the shape of the air inlet end, and the size of the air outlet port is the same as the size of the air inlet end.
10. The air conditioner according to any one of claims 1 to 9, characterized by Further comprising: a water collecting tray arranged below the heat exchanger, and the area of the water collecting tray is greater than or equal to the projection area of the heat exchanger on a horizontal plane.