Integrally-formed flow guide outer cover and air conditioner formed by integrally-formed flow guide outer cover

Abstract

The utility model provides an integrally formed flow guide outer cover and an air conditioner formed by the same, the integrally formed flow guide outer cover comprises a flow guide plate and a flow guide ring located on the flow guide plate and protruding out of the flow guide plate, a flow guide notch is formed in the flow guide plate, and the flow guide ring and the inner side wall of the flow guide notch are integrally formed; the inner diameter of the flow guide ring is decreased and then increased in the air outlet direction. The flow guide ring and the flow guide plate are integrally formed, and the radian change of the flow guide ring is reasonably set, so that the production quality problem of part combination and assembly is avoided, the production efficiency is improved, the air flow smoothness is improved, and the running noise of the whole machine is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning air-guiding outer devices, in particular to an integrally formed air-guiding outer cover and an air-conditioning formed therefrom. Background Art

[0002] The guide ring is usually installed in the ventilation system of the axial flow fan. It is one of the important components in the air duct of the outdoor unit of the air conditioner using the axial flow fan. The guide ring is usually used in conjunction with the axial flow fan to guide the airflow and establish the appropriate airflow velocity field and pressure field, which directly affects the heat exchange effect of the air conditioner condenser and the unit noise.

[0003] The outdoor unit air duct system in the existing small air-cooled heat pump air conditioner is mainly composed of axial flow fan blades, guide rings, outer covers and grilles, in which the guide ring is fixed on the outer cover as a separate part, but the following problems often exist:

[0004] 1. The operation is complicated. The guide ring needs to be rotated into the outer cover and then fixed with multiple screws. The production efficiency is low, and there is a great waste of both labor costs and material costs.

[0005] 2. Poor reliability. In order to establish an appropriate airflow velocity field and pressure field, the gap between the fan blades and the guide ring should not be designed to be too large. It is difficult to ensure that the spliced ​​guide ring is flush with the outer cover circle surface. The guide ring often protrudes from the connection surface, affecting the airflow and wind field diversion effect. It will also lead to a small gap between the fan blades and the guide ring. During the operation vibration of the unit, the fan blades are likely to scrape the guide ring and cause damage to the fan blades.

[0006] Meanwhile, in the prior art, if the guide ring, the outer cover circular surface and the fan blade are not properly assembled, the smoothness of the air flow will be hindered and the noise of the axial flow fan blade will increase. Utility Model Content

[0007] In order to overcome the problems existing in the related technology, one of the purposes of the utility model is to provide an integrally molded guide cover, in which the guide ring and the guide plate are integrally molded, and the curvature change of the guide ring is reasonably set, thereby avoiding the production quality problems of parts combination assembly, improving production efficiency, improving the smoothness of air flow, and reducing the noise of the whole machine operation.

[0008] An integrally formed deflector cover comprises a deflector plate and a deflector ring located on the deflector plate and protruding from the deflector plate, wherein a deflector notch is provided in the deflector plate, and the deflector ring is integrally formed with the inner side wall of the deflector notch; along the air outlet direction, the inner diameter of the deflector ring first decreases and then increases.

[0009] The guide cover is formed by integrated stamping without any welding surface. It only needs to be stamped once with the set stamping die, avoiding the production quality problem of parts assembly and improving production efficiency at the same time. The one-piece guide cover does not need to be assembled again to have both the outer cover protection and air diversion functions. It solves the technical problems of low efficiency of separate assembly of the guide ring and uneven connection surface between the guide ring and the outer cover in the prior art, which affect the heat transfer and product quality. The one-piece stamping technology of this application reduces the waste materials generated by the stamping of the original outer cover sheet material. While realizing the utilization of waste materials, it simplifies the types of materials and greatly reduces the production cost.

[0010] As a preferred embodiment of the present application, the guide ring includes a tapering portion and an increasing portion along the air outlet direction, the inner diameter of the tapering portion gradually decreases along the air outlet direction, and the inner diameter of the increasing portion gradually increases along the air outlet direction.

[0011] In the present application, one end of the tapered portion is connected to the guide plate, that is, it is integrally formed with the edge of the guide notch. The tapered portion refers to the inner diameter of the guide ring gradually shrinking in the direction close to the center of the guide notch. The contraction of the guide ring can play a role in speeding up and reducing pressure in the process of airflow guidance, which helps the airflow flow and thus enhances the heat exchange effect of the condenser. The increasing portion refers to the inner diameter of the guide ring gradually expanding in the direction away from the center of the guide notch in the direction extending from the guide plate to the outside of the guide ring. The expansion of the guide ring is to reduce speed and pressure in the process of airflow guidance, reduce the airflow sound generated by the whole machine, and thus reduce the noise of the device.

[0012] As a preferred embodiment of the present application, a transition portion is provided between the tapering portion and the increasing portion, and the inner diameter of the transition portion remains unchanged along the air outlet direction.

[0013] In order to avoid the problem of unstable airflow caused by the abrupt transition between the tapering part and the increasing part, the present application provides a transition part between the tapering part and the increasing part, and the inner diameter of the transition part remains unchanged along the air outlet direction. In other words, the airflow flows from the back of the guide plate to the front of the guide plate, and the front of the guide plate refers to the side where the guide ring is provided. During the airflow flow, the speed is increased and the pressure is reduced in the tapering part first, which promotes the airflow and enhances the heat exchange effect. After that, the airflow flows smoothly in the transition section and enters the increasing part before flowing out of the guide ring. The airflow is decelerated and pressurized in the increasing part, which reduces the noise generated by the airflow.

[0014] As a preferred embodiment of the present application, the transition portion is a cylindrical annular structure.

[0015] As a preferred embodiment of the present application, the tapered portion is a conical annular structure, and the angle between the tapered portion and the guide plate is greater than or equal to 60°.

[0016] The conical structure allows the tapered part to quickly achieve the process of increasing speed and reducing pressure within a smaller range. There is still some distance between this part and the outlet of the guide ring, that is, the top of the guide ring. The tiny noise generated will not have a significant impact on the operation of the whole machine. It helps to quickly achieve the process of increasing speed and reducing pressure within a shorter stroke, thereby accelerating the flow of air.

[0017] As a preferred embodiment of the present application, the gradually increasing portion is a trumpet-shaped annular structure.

[0018] The gradually increasing portion expands outward in a smooth manner, which can ensure that the process of airflow deceleration and pressure increase is carried out smoothly and avoid the problem of airflow instability or noise caused by sudden changes in the cross-sectional area of ​​the guide ring.

[0019] As a preferred embodiment of the present application, a first clamping hole is provided in the guide plate, and the first clamping hole is used to connect the guide plate and the grille.

[0020] There are two guide rings in the guide plate, and first clamping holes can be set in sequence between the two guide rings and on the side where the two guide rings are away from each other, and fasteners corresponding to the first clamping holes are set at corresponding positions in the grille. For example, the first clamping hole is a rectangular protrusion structure, and the fastener in the grille is a rectangular groove. The grille and the guide plate are assembled by the fit of the protrusion and the groove. Or conversely, the first clamping hole is a rectangular groove, and the fastener in the grille is a rectangular protrusion. The grille and the guide plate can also be assembled by the fit of the protrusion and the groove.

[0021] As a preferred embodiment of the present application, a second clip is provided in the guide plate, and the second clip is used to connect the guide plate and the outer shell panel. An assembly hole adapted to the second clip is provided in the outer shell panel.

[0022] As a preferred embodiment of the present application, the top width of the second clamping piece is smaller than the bottom width. When the guide cover and the outer shell panel are assembled, the bottom end of the second clamping piece is aligned with the assembly hole, and the second clamping piece is clamped with the assembly hole under the action of gravity and external force.

[0023] In the present application, the second clip is an inverted ear-shaped structure, that is, the top width of the second clip is smaller than the bottom width, and the second clip includes a top protrusion with a smaller protrusion height and a bottom protrusion with a larger protrusion height. When the air guide cover and the shell panel are assembled, the bottom protrusion of the second clip is aligned with the assembly hole, and under the action of gravity and external force, the bottom protrusion and the top protrusion enter the assembly hole of the shell panel together for clamping. The shape of the assembly hole is adapted to the shape of the second clip, and a hook is also provided at the end of the assembly hole. When the second clip is completely inserted into the assembly hole, the hook will hook the top protrusion, that is, the smaller end of the second clip.

[0024] A second object of the present utility model is to provide an air conditioner, comprising the above-mentioned one-piece formed air guide cover.

[0025] The beneficial effects of the utility model are:

[0026] The utility model provides an integrally formed guide cover, including a guide plate and a guide ring located on the guide plate and protruding from the guide plate, wherein the guide plate is provided with a guide notch, and the guide ring is integrally formed with the inner side wall of the guide notch. The guide cover of the present application is formed by integrated stamping and does not have any welding surface. It only needs to be stamped once with a set stamping die, thereby avoiding the production quality problem of parts assembly and improving production efficiency at the same time; the integrally formed guide cover does not need to be assembled again to have both the outer cover protection and air guide functions; it solves the technical problems in the prior art that the guide ring is assembled separately inefficiently and the uneven connection surface between the guide ring and the outer cover affects the guide heat exchange and product quality. At the same time, the integrally formed stamping technology reduces the waste materials and idle materials generated by the stamping of the original outer cover sheet material. While realizing the utilization of waste materials, it simplifies the types of materials and greatly reduces the production cost. In the air outlet direction, the inner diameter of the guide ring of the present application first decreases and then increases. In the area where the inner diameter of the guide ring decreases, the speed can be increased and the pressure can be reduced during the air flow process, thereby promoting the air flow; in the area where the inner diameter of the guide ring increases, the speed can be decreased and the pressure can be increased during the air flow process, thereby reducing the airflow noise generated by the operation of the entire machine; the present application can improve the airflow organization of the heat exchange of the air conditioner outdoor unit, and has strong practicality, versatility and popularization.

[0027] An air conditioner provided in the present application includes an integrally formed air guide cover as described above, which can reduce the cost of air conditioner assembly, reduce assembly steps, reduce production costs, and improve production efficiency. At the same time, it can ensure the stability of airflow during air conditioner operation and reduce the noise of air conditioner operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Attached Figure 1 This is a schematic diagram of the structure of the guide cover of this application;

[0029] Attached Figure 2 This is an enlarged schematic diagram of one of the guide rings;

[0030] Attached Figure 3 A top view of the guide cover of this application;

[0031] Attached Figure 4 for Figure 3 Schematic diagram of the cross section of the middle BB surface;

[0032] Attached Figure 5 for Figure 4 A magnified schematic diagram of area A in the middle.

[0033] Reference numerals:

[0034] 11. guide plate; 12. guide ring; 13. guide notch; 14. first clamping hole; 15. second clamping piece; 121. tapered portion; 122. transition portion; 123. gradually increasing portion. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0036] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0037] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0038] Example 1

[0039] like Figure 1-Figure 5 As shown, the present application provides an integrally formed deflector cover, comprising a deflector plate 11 and a deflector ring 12 located on the deflector plate 11 and protruding from the deflector plate 11, wherein a deflector notch 13 is provided in the deflector plate 11, and the deflector ring 12 and the inner side wall of the deflector notch 13 are integrally formed; along the air outlet direction, the inner diameter of the deflector ring 12 first decreases and then increases.

[0040] like Figure 4 and Figure 5As shown, in the cross-sectional view, the guide plate 11 and the guide ring 12 are seamlessly connected, which fully illustrates that the guide plate 11 and the guide ring 12 of the present application are an integrated pressure-bearing molded structure without any welding joint surfaces and without problems such as assembly surface gaps.

[0041] The guide cover of the present application is formed by integrated stamping and has no welding surface. It only needs to be stamped once with a set stamping die, avoiding the production quality problems of parts assembly and improving production efficiency at the same time. The one-piece guide cover does not need to be assembled again to have both the outer cover protection function and the air guide function. It solves the technical problems in the prior art that the guide ring 12 is assembled separately inefficiently and the uneven connection surface between the guide ring 12 and the outer cover affects the guide heat exchange and product quality.

[0042] The one-piece stamping technology of the present application reduces the waste materials generated by the stamping of the original outer cover sheet material. While realizing the utilization of waste materials, it simplifies the types of materials and greatly reduces the production cost.

[0043] In the present application, the inner diameter of the guide ring 12 first decreases and then increases along the air outlet direction. In the area where the inner diameter of the guide ring 12 decreases, the speed can be increased and the pressure can be reduced during the air flow process, thereby promoting the air flow; in the area where the inner diameter of the guide ring 12 increases, the speed can be decreased and the pressure can be increased during the air flow process, thereby reducing the airflow noise generated by the operation of the entire machine; the present application can improve the airflow organization of the heat exchange of the air conditioner outdoor unit, and has strong practicality, versatility and promotability.

[0044] Example 2

[0045] like Figure 1-Figure 5 As shown, the present application provides an integrally formed deflector cover, comprising a deflector plate 11 and a deflector ring 12 located on the deflector plate 11 and protruding from the deflector plate 11, wherein a deflector notch 13 is provided in the deflector plate 11, and the deflector ring 12 and the inner side wall of the deflector notch 13 are integrally formed; along the air outlet direction, the inner diameter of the deflector ring 12 first decreases and then increases.

[0046] Specifically, the guide ring 12 includes a tapered portion 121 and an increasing portion 123 along the air outlet direction, wherein the inner diameter of the tapered portion 121 gradually decreases along the air outlet direction, and the inner diameter of the increasing portion 123 gradually increases along the air outlet direction. In the present application, the air outlet direction refers to the direction from the side of the guide ring close to the guide plate to the side of the guide ring away from the guide plate.

[0047] In the present application, the guide ring 12 is integrally formed on the guide plate 11 during the stamping process. The function of the guide ring 12 is to guide the airflow and establish an appropriate airflow velocity field and pressure field. Figure 5As shown, one end of the tapered portion 121 in the present application is connected to the guide plate, that is, it is integrally formed with the edge of the guide notch. The tapered portion 121 refers to the inner diameter of the guide ring 12 gradually shrinking in the direction close to the center of the guide notch. The contraction of the guide ring 12 can increase the speed and reduce the pressure during the airflow guiding process, which helps the airflow flow and further enhances the heat exchange effect of the condenser.

[0048] The increasing portion 123 in the present application refers to the direction extending from the guide plate 11 to the outside of the guide ring 12, where the inner diameter of the guide ring 12 gradually expands in a direction away from the center of the guide notch. The expansion of the guide ring 12 is to reduce speed and increase pressure during the airflow guiding process, reduce the airflow sound generated by the whole machine, and thereby reduce the noise of the device.

[0049] In order to avoid the problem of unstable airflow caused by the abrupt transition between the tapered portion 121 and the increasing portion 123, the present application provides a transition portion 122 between the tapered portion 121 and the increasing portion 123, and the inner diameter of the transition portion 122 remains unchanged along the air outlet direction. In other words, the airflow flows from the back of the guide plate to the front of the guide plate, and the front of the guide plate refers to the side where the guide ring 12 is provided. During the airflow flow, the speed is increased and the pressure is reduced in the tapered portion 121 to promote the airflow and enhance the heat exchange effect. After that, the airflow flows smoothly in the transition section and enters the increasing portion 123 before flowing out of the guide ring. The airflow is decelerated and pressurized in the increasing portion 123 to reduce the noise generated by the airflow.

[0050] like Figure 4 and Figure 5 As shown, the guide ring 12 in the present application is a three-stage structure, the tapered portion 121 is a conical ring structure, and the direction from the guide plate 11 to the top of the guide ring 12 is defined as the first direction, and the top of the guide ring 12 refers to the end of the guide ring 12 away from the guide plate 11. In the first direction, the inner diameter of the tapered portion 121 gradually decreases. In order to facilitate the flow of air, the present application designs the guide notch 13 as a cylindrical notch, so the tapered portion 121 is a conical ring structure. Figure 5 As shown, the conical structure allows the tapered portion 121 to quickly achieve the process of increasing speed and reducing pressure within a smaller range, and there is still some distance from the outlet of the guide ring 12, that is, the top of the guide ring 12. The tiny noise generated will not have a significant impact on the operation of the entire machine, which helps to quickly achieve the process of increasing speed and reducing pressure within a shorter stroke, thereby accelerating the flow of air.

[0051] like Figure 4 and Figure 5As shown, the transition portion 122 is a cylindrical annular structure. In the first direction, the inner diameter of the tapered portion 121 remains unchanged. The transition portion 122 is also an integrally formed structure with the tapered portion 121 and the increasing portion 123, that is, the two ends of the transition portion 122 are respectively integrally formed with the ends of the tapered portion 121 and the increasing portion 123, and there is no welding surface or assembly surface. In order to adapt to the end of the tapered portion 121, the transition portion 122 is a cylindrical annular structure.

[0052] like Figure 4 and Figure 5 As shown, the gradually increasing portion 123 is a trumpet-shaped annular structure. Figure 5 As shown, the gradually increasing portion 123 expands outward in a smooth manner, which can ensure that the process of airflow deceleration and pressure increase is carried out smoothly and avoid the problem of airflow instability or noise caused by sudden changes in the cross-sectional area of ​​the guide ring 12.

[0053] like Figure 4 and Figure 5 As shown, the junction of the tapered portion 121 and the guide plate 11 is stamped and formed as an integrated whole without any welded joint surface; the junction of the tapered portion 121 and the transition portion 122 is stamped and formed as an integrated whole without any welded joint surface; the junction of the expanding portion and the transition portion 122 is stamped and formed as an integrated whole without any welded joint surface.

[0054] Example 3

[0055] like Figure 1-Figure 5 As shown, the present application provides an integrally formed deflector cover, comprising a deflector plate 11 and a deflector ring 12 located on the deflector plate 11 and protruding from the deflector plate 11, wherein a deflector notch 13 is provided in the deflector plate 11, and the deflector ring 12 and the inner side wall of the deflector notch 13 are integrally formed; along the air outlet direction, the inner diameter of the deflector ring 12 first decreases and then increases.

[0056] When the air deflector cover of the present application is used, it needs to be assembled with the grille and the outer shell panel. The grille is a device that can filter particles and impurities, usually made of metal or plastic. The grille is usually installed outside the air inlet of the air deflector cover, and its function is to prevent particles from entering the air deflector cover and intercept them on the surface of the grille. At the same time, the grille also protects the air deflector cover from being contaminated by dust and other debris in the external environment.

[0057] The guide plate 11 is provided with a first clamping hole 14, which is used to connect the guide plate 11 and the grille. The grille can be installed on the front or back side of the guide plate 11, that is, on the front side of the guide ring 12 or on the back side of the guide ring 12. The first clamping hole 14 is set in the guide plate 11 at a position avoiding the guide gap 13. Since the grille needs to cover all the guide rings 12 in the guide plate 11, the grille and the guide plate 11 are assembled in an overlapping manner. Figure 1 and 3 As shown, there are two guide rings 12 in the guide plate 11, and first clamping holes 14 can be sequentially set between the two guide rings 12 and on the side where the two guide rings 12 are away from each other, and fasteners corresponding to the first clamping holes 14 are set at corresponding positions in the grille. For example, the first clamping hole 14 is a rectangular protrusion structure, and the fastener in the grille is a rectangular groove. The grille and the guide plate 11 are assembled by the fit of the protrusion and the groove. Or conversely, the first clamping hole 14 is a rectangular groove, and the fastener in the grille is a rectangular protrusion. The grille and the guide plate 11 can also be assembled by the fit of the protrusion and the groove.

[0058] In the present application, the air guide cover also needs to be installed in the outer shell panel, which refers to the sheet metal surface on the outside of the air conditioner when the whole machine is assembled. When the air guide cover and the outer shell panel are installed, the air guide cover needs to be assembled as a whole on the inner side of the outer shell panel. Therefore, the air guide plate 11 of the present application is provided with a second clamping member 15, which is used to connect the air guide plate 11 and the outer shell panel, and the outer shell panel is provided with an assembly hole adapted to the second clamping member 15.

[0059] Furthermore, the second clamping member 15 is located at the side of the guide plate 11, that is, the surface where the guide notch 13 in the guide plate 11 is located is the front and back sides of the guide plate 11, and the side of the guide plate 11 refers to the side relative to the front and back sides of the guide plate 11. In actual operation, the volume of the outer shell panel is relatively large, and a space for accommodating the guide cover is provided inside. In the present application, the second clamping member 15 is an inverted ear-shaped structure, that is, the top width of the second clamping member 15 is smaller than the bottom width, such as Figure 2 As shown, the second clamping member 15 includes a top protrusion with a smaller protrusion height and a bottom protrusion with a larger protrusion height. When the air guide cover and the shell panel are assembled, the bottom protrusion of the second clamping member 15 is aligned with the assembly hole. Under the action of gravity and external force, the bottom protrusion and the top protrusion enter the assembly hole of the shell panel together for clamping. The shape of the assembly hole is adapted to the shape of the second clamping member 15. At the same time, a hook is also provided at the end of the assembly hole. When the second clamping member 15 completely enters the assembly hole, the hook will hook the top protrusion, that is, the smaller end of the second clamping member 15.

[0060] It should be noted that the shape of the second clamping member 15 in the present application only needs to correspond to the shape and size of the assembly hole, and the top and bottom ends of the second clamping member 15 can be interchanged, for example Figure 2One of the second clips 15 has a top protrusion with a smaller protrusion height on the top and a bottom protrusion with a larger protrusion height on the bottom; the other second clip 15 has a bottom protrusion with a larger protrusion height on the top and a top protrusion with a smaller protrusion height on the bottom. The top protrusion and the bottom protrusion in this application are defined according to their protrusion heights, and it is not required that the top protrusion is always located at the top or bottom. When the orientation of the second clip 15 changes, it is only necessary to modify the orientation of the assembly hole in the housing panel accordingly.

[0061] Example 4

[0062] like Figure 1-Figure 5 As shown, the present application provides an integrally formed deflector cover, comprising a deflector plate 11 and a deflector ring 12 located on the deflector plate 11 and protruding from the deflector plate 11, wherein a deflector notch 13 is provided in the deflector plate 11, and the deflector ring 12 and the inner side wall of the deflector notch 13 are integrally formed; along the air outlet direction, the inner diameter of the deflector ring 12 first decreases and then increases.

[0063] Specifically, the guide ring 12 includes a tapered portion 121 and an increasing portion 123 along the air outlet direction, the inner diameter of the tapered portion 121 gradually decreases along the air outlet direction, and the inner diameter of the increasing portion 123 gradually increases along the air outlet direction; a transition portion 122 is provided between the tapered portion 121 and the increasing portion 123, and the inner diameter of the transition portion 122 remains unchanged along the air outlet direction.

[0064] Furthermore, in the present application, the transition portion 122 is a cylindrical annular structure, the tapered portion 121 is a conical annular structure, and the increasing portion 123 is a trumpet-shaped annular structure.

[0065] like Figure 4 and Figure 5 As shown, the junction of the tapered portion 121 and the guide plate 11 is stamped and formed as an integrated whole without any welded joint surface; the junction of the tapered portion 121 and the transition portion 122 is stamped and formed as an integrated whole without any welded joint surface; the junction of the expanding portion and the transition portion 122 is stamped and formed as an integrated whole without any welded joint surface.

[0066] like Figure 4 and Figure 5As shown, one end of the tapered portion 121 in the present application is connected to the guide plate, that is, it is integrally formed with the edge of the guide notch. The tapered portion 121 refers to the inner diameter of the guide ring 12 gradually shrinking in the direction close to the center of the guide notch. The contraction of the guide ring 12 can play a role in speeding up and reducing pressure during the airflow guiding process, which is helpful for airflow flow, and thus enhances the heat exchange effect of the condenser. The present application sets the angle between the tapered portion 121 and the guide plate 11 to be greater than or equal to 60°, preferably 75°. The conical structure at a certain angle to the guide plate 11 can enable the tapered portion 121 to quickly achieve the speed-up and pressure-reduction process within a smaller range, and there is still a distance from the outlet of the guide ring 12, that is, the top of the guide ring 12. The slight noise generated will not have a significant impact on the operation of the whole machine, which is helpful to quickly achieve speed-up and pressure-reduction within a shorter stroke, and accelerate the effect of airflow flow. At the same time, during the flow of air, if the size of the tapered portion 121 is too long, that is, the range of the speed increase and pressure reduction is too large, it will cause a large noise during the subsequent flow expansion. Therefore, the size of the gradually increasing portion 123 set in the present application, that is, Figure 4 The ratio of the size of L10 in the middle to the size of L20 of the transition part 122 is 3:5. The size of the increasing part 123 in the present application, combined with its tapered angle design, can ensure that the airflow is quickly accelerated and depressurized within a shorter stroke, thereby accelerating the flow of airflow, while also avoiding the problem of airflow noise caused by excessive acceleration.

[0067] like Figure 4 and Figure 5 As shown, the gradually increasing portion 123 is a trumpet-shaped annular structure. Figure 5 As shown, the gradually increasing portion 123 expands outward in a smooth manner, which can ensure that the process of airflow deceleration and pressure increase is carried out smoothly, and avoid the problem of airflow instability or noise caused by sudden changes in the cross-sectional area of ​​the guide ring 12. At the same time, in order to ensure the stability of airflow outflow, the present application sets the size of the gradually increasing portion 123, that is, Figure 4 The ratio of the size L30 to the size L20 of the transition portion 122 is 5:4, which can ensure that the airflow is evenly and fully decelerated and pressurized in the final stroke of the airflow output, avoiding the problem of airflow instability or noise caused by a sudden change in the cross-sectional area of ​​the guide ring 12.

[0068] The cross-section of the trumpet-shaped increasing portion in the present application can specifically be a trumpet-shaped arc structure, and its radius can be set to 27.5 mm as a specific embodiment, which needs to be specifically designed according to the size of the guide plate and the application scenario.

[0069] The present application also provides an air conditioner, including the one-piece molded guide cover as described above, which can reduce the cost of air conditioner assembly, reduce assembly steps, reduce production costs, and improve production efficiency. At the same time, it can ensure the stability of airflow during air conditioner operation and reduce the noise of air conditioner operation.

[0070] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings. In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0071] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0072] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0073] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An integrally formed flow guide cover, characterized in that: It comprises a guide plate and a guide ring located on the guide plate and protruding from the guide plate, wherein a guide notch is arranged in the guide plate, and the guide ring is integrally formed with the inner side wall of the guide notch; The inner diameter of the guide ring decreases first and then increases along the air outlet direction.

2. The integrally formed flow guide cover according to claim 1, characterized in that: The guide ring includes a gradually contracting portion and a gradually increasing portion along the air outlet direction. The inner diameter of the gradually contracting portion gradually decreases along the air outlet direction, and the inner diameter of the gradually increasing portion gradually increases along the air outlet direction.

3. The integrally formed flow guide cover according to claim 2, characterized in that: A transition portion is provided between the gradually contracting portion and the gradually increasing portion, and an inner diameter of the transition portion remains unchanged along the air outlet direction.

4. The integrally formed flow guide cover according to claim 3, characterized in that: The transition portion is a cylindrical annular structure.

5. The integrally formed flow guide cover according to claim 2, characterized in that: The tapered portion is a conical annular structure, and an included angle between the tapered portion and the guide plate is greater than or equal to 60°.

6. The integrally formed flow guide cover according to claim 2, characterized in that: The gradually increasing portion is a trumpet-shaped annular structure.

7. The integrally formed flow guide cover according to claim 1, characterized in that: The guide plate is provided with a first clamping hole, and the first clamping hole is used to connect the guide plate and the grille.

8. The integrally formed flow guide cover according to claim 1, characterized in that: The guide plate is provided with a second clamping piece, and the second clamping piece is used to connect the guide plate and the outer shell panel. The outer shell panel is provided with an assembly hole matched with the second clamping piece.

9. The integrally formed flow guide cover according to claim 8, characterized in that: The top width of the second clamping piece is smaller than the bottom width. When the air guide cover and the shell panel are assembled, the bottom end of the second clamping piece is aligned with the assembly hole, and the second clamping piece is clamped with the assembly hole under the action of gravity and external force.

10. An air conditioner, characterized in that: It comprises an integrally formed flow guide cover as described in any one of claims 1 to 9.

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