Air outlet assembly and heat pump water heater

Abstract

An air outlet assembly and a heat pump water heater. The air outlet assembly comprises: a housing (100) provided with an air outlet area (110), wherein the air outlet area (110) comprises a main body area (111) and extension areas (112), the extension areas (112) are located outside the main body area (111) and connected to the main body area (111), and the portions where the extension areas (112) are connected to the main body area (111) are division boundaries; a fan assembly provided in the housing (100); and an air guide ring (300) provided between the fan assembly and the air outlet area (110), wherein an impeller (200) of the fan assembly and the main body area (111) are both opposite to an inner hole of the air guide ring (300), and the extension areas (112) are misaligned with the inner hole of the air guide ring (300). A flow guide portion (310) is provided between each extension area (112) and the air guide ring (300), and the flow guide portion (310) is configured to guide airflow, which is blown towards the division boundary through the inner hole of the air guide ring (300), to flow towards the extension area (112).

Description

Air outlet component and heat pump water heater

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on June 29, 2023, with application number 2023107923670 and invention name “A kind of air outlet component and heat pump water heater”, and the Chinese patent application filed with the China Patent Office on June 29, 2023, with application number 2023216956414 and invention name “A kind of air outlet component and heat pump water heater”, the contents of which should be understood as incorporated into this application by reference. Technical Field

[0002] The present application relates to, but is not limited to, the technical field of electrical equipment, and specifically refers to an air outlet component and a heat pump water heater. Background Art

[0003] The related technology provides a heat pump water heater, whose head assembly includes an outer cover, a fan assembly, an air guide ring 10 (as shown in Figure 1) and a heat exchanger. The peripheral wall of the outer cover is provided with a rectangular air outlet area, the fan assembly is arranged in the outer cover, the air guide ring 10 is arranged between the impeller of the fan assembly and the air outlet area, the heat exchanger is located in the outer cover and is arranged on the side of the fan assembly facing away from the air guide ring 10, and the fan assembly is configured to form an airflow from the heat exchanger through the impeller and the air guide ring 10 to the air outlet area during operation.

[0004] How to better improve the operating performance of the heat pump water heater is a technical problem that those skilled in the art have been working on solving.

[0005] Summary of the Invention

[0006] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0007] Analysis and research found that the inner holes of the impeller and the air guide ring are both circular structures, and the impeller is opposite to the inner hole of the air guide ring. The area of ​​the air outlet zone opposite to the inner hole of the air guide ring is the main area, and the main area is a circular structure. The four corners of the air outlet zone outside the main area are four extended areas. The airflow blown from the impeller through the inner hole of the air guide ring to the air outlet area is basically all blown out from the main area, and the air outlet effect of the four extended areas is particularly poor.

[0008] The present application provides an air outlet component with better operating performance.

[0009] The present application also provides a heat pump water heater.

[0010] The air outlet assembly provided in the embodiment of the present application is used for a heat pump water heater, comprising: an outer cover provided with an air outlet area, the air outlet area comprising a main area and an extension area, the extension area is located outside the main area and connected to the main area, and the portion where the extension area is connected to the main area is a dividing boundary; a fan assembly, arranged in the outer cover; and an air guide ring, arranged between the fan assembly and the air outlet area, the impeller of the fan assembly and the main area are both opposite to the inner hole of the air guide ring, and the extension area is offset from the inner hole of the air guide ring; wherein a guide portion is provided between the extension area and the air guide ring, and the guide portion is configured to guide the airflow blown through the inner hole of the air guide ring toward the dividing boundary to flow to the extension area.

[0011] In some exemplary embodiments, the guide portion includes a guide groove, and the guide groove is provided on a side of the air guide ring facing the air outlet area.

[0012] In some exemplary embodiments, the guide groove extends obliquely from the air inlet side of the air guide ring to the air outlet side of the air guide ring toward the radial outside of the air guide ring.

[0013] In some exemplary embodiments, the guide groove extends obliquely from the radial inner side of the air guide ring to the radial outer side of the air guide ring toward the rotation direction of the impeller.

[0014] In some exemplary embodiments, from the air inlet side of the air guide ring to the air outlet side of the air guide ring, the inner circumferential surface of the air guide ring includes a connected shrinking ring segment and an expanding ring segment, and the guide groove includes a connected first groove segment and a second groove segment, the first groove segment is located on the side of the air guide ring facing the air outlet area, and the second groove segment is located on the expanding ring segment.

[0015] In some exemplary embodiments, the inner circumferential surface of the air guide ring further includes a straight ring segment, which is located between the shrinking ring segment and the expanding ring segment and connects the shrinking ring segment and the expanding ring segment.

[0016] In some exemplary embodiments, the guide groove further includes a third groove segment, wherein the third groove segment is located in the straight ring segment and is configured to be connected to the second groove segment.

[0017] In some exemplary embodiments, one end of the guide groove adjacent to the inner hole of the air guide ring is through-connected, and the inner surface of the guide groove is a concave surface.

[0018] In some exemplary embodiments, the side wall of the outer cover includes an annular wall, the air outlet area is located on the annular wall and is rectangular, the four corners of the air outlet area include four extension areas, and the guide portion is arranged in a one-to-one correspondence with the extension areas.

[0019] The heat pump water heater proposed in the embodiment of the present application includes a water tank body and the air outlet assembly described in any of the above embodiments, and the air outlet assembly is arranged on the water tank body.

[0020] The technical solution proposed in the embodiment of the present application is that when the fan assembly is in operation, the airflow is blown from the impeller through the inner hole of the air guide ring to the air outlet area. In the process of blowing the airflow through the inner hole of the air guide ring, the airflow blown toward the dividing boundary through the inner hole of the air guide ring flows to the extension area under the guidance of the guide portion, and finally blows out from the extension area, that is, the airflow originally blown out from the main area is divided, so that part of the airflow blown out from the main area is blown out from the extension area, and the other part is still blown out from the main area, thereby increasing the amount of air blown out through the extension area and reducing the amount of air blown out through the main area, making the airflow blown out from the air outlet area more dispersed, so that the noise generated by the airflow during the blowing process is smaller. Compared with the related art, the air outlet area of ​​the present application has a larger air volume at the same impeller speed, and the driving motor of the fan assembly of the present application has a lower power at the same air volume of the air outlet area.

[0021] Still other aspects will become apparent upon reading and understanding the accompanying drawings and detailed description.

[0022] Summary of the Figures

[0023] FIG1 is a schematic structural diagram of an air guide ring in the related art;

[0024] FIG2 is a schematic diagram of the main structure of the air outlet assembly proposed in some embodiments of the present application;

[0025] FIG3 is a partial schematic diagram of the three-dimensional structure of the air outlet assembly shown in FIG2 , with the grille and the outer cover not fully shown;

[0026] FIG4 is a partial schematic diagram of the three-dimensional structure of the air outlet assembly shown in FIG2 , with the grille and outer cover not shown;

[0027] FIG5 is a schematic diagram of the three-dimensional structure of the air guide ring in FIG4 ;

[0028] FIG6 is a partial schematic diagram of the cross-sectional structure of the air guide ring shown in FIG5 at the air guide portion.

[0029] In the accompanying drawings, the correspondence between the drawing numbers and the component names is: 100 outer cover, 110 air outlet area, 111 main body area, 112 extension area, 200 impeller, 300 air guide ring, 310 guide part, 311 first slot segment, 312 second slot segment, 313 third slot segment, 320 necking ring segment, 330 expanding ring segment, 340 straight ring segment.

[0030] Details

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] In addition, the technical solutions between the various embodiments of the present application can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0033] Analysis and research found that the inner holes of the impeller and the air guide ring are both circular structures, and the impeller is opposite to the inner hole of the air guide ring. The area of ​​the air outlet zone opposite to the inner hole of the air guide ring is the main area, and the main area is a circular structure. The four corners of the air outlet zone outside the main area are four extended areas. The airflow blown from the impeller through the inner hole of the air guide ring to the air outlet area is basically all blown out from the main area, and the air outlet effect of the four extended areas is particularly poor.

[0034] The present application provides an air outlet component with better operating performance.

[0035] The present application also provides a heat pump water heater.

[0036] The air outlet assembly provided in the embodiment of the present application, as shown in Figures 2 to 6, includes: an outer cover 100 provided with an air outlet area 110 (the air outlet area 110 is provided with a grille mesh), the air outlet area 110 includes a main area 111 and an extension area 112, the extension area 112 is located outside the main area 111 and connected to the main area 111, and the portion where the extension area 112 is connected to the main area 111 is defined as a dividing boundary; a fan assembly, the fan assembly is arranged in the outer cover 100, the fan assembly includes a motor bracket, a drive motor and an impeller 200 (the impeller 200 can be set as an axial flow impeller), the drive motor is mounted on the motor bracket, The impeller 200 is mounted on the rotating shaft of the drive motor; and the air guide ring 300, the air guide ring 300 is arranged between the fan assembly and the air outlet area 110, the impeller 200 and the main area 111 are opposite to (i.e. facing) the inner hole of the air guide ring 300, and the extension area 112 is staggered with the inner hole of the air guide ring 300 (in the radial direction of the air guide ring 300, the extension area 112 is completely located outside the inner hole of the air guide ring 300); wherein, a guide portion 310 is provided between the extension area 112 and the air guide ring 300, and the guide portion 310 is configured to guide the airflow blown through the inner hole of the air guide ring 300 toward the dividing boundary to flow to the extension area 112.

[0037] When the fan assembly is running, the air flow is blown from the impeller 200 through the inner hole of the air guide ring 300 to the air outlet area 110. In the process of the air flow being blown toward the inner hole of the air guide ring 300, the air flow blown toward the dividing boundary through the inner hole of the air guide ring 300 flows to the extension area 112 under the guidance of the guide part 310, and finally blown out from the extension area 112, that is, the air flow originally blown out from the main area 111 is diverted, so that part of the air flow blown out from the main area 111 is blown out from the extension area 112, and the other part is still blown out from the main area 111, so as to increase the amount of the air flow blown out through the extension area 112 and reduce the amount of the air flow blown out through the main area 111, so that the air flow blown out from the air outlet area 110 is more dispersed, so that the noise generated by the air flow during the blowing process is smaller.

[0038] Compared with the related art, the air output of the air outlet area 110 of the present application is larger at the same impeller speed of 200, and the power of the driving motor of the fan assembly of the present application is lower at the same air output of the air outlet area 110.

[0039] In some examples, as shown in FIG3 to FIG6 , the guide portion 310 includes a guide groove, which is provided on the side of the air guide ring 300 facing the air outlet area 110 . This makes the structure of the guide groove simpler and reduces the wind resistance to the airflow.

[0040] In some examples, as shown in Figures 4 and 5, the guide groove extends obliquely from the air inlet side of the air guide ring 300 to the air outlet side of the air guide ring 300 toward the radial outside of the air guide ring 300. To ensure the air guiding effect of the guide groove, the inclination angle is set to no more than 60 degrees. In addition, the guide groove also extends obliquely from the radial inside of the air guide ring 300 to the radial outside of the air guide ring 300 toward the rotation direction of the impeller 200. In this solution, the guide groove can guide more airflow to the extension area 112, so that the airflow blown out from the air outlet area 110 is more dispersed and the noise generated by the airflow during the blowing process is smaller. Compared with the related art, the air output of the air outlet area 110 of this solution is larger at the same impeller 200 speed, and the power of the drive motor of the fan assembly of this solution is lower at the same air output of the air outlet area 110.

[0041] Alternatively, the guide groove may be arranged to extend obliquely from the air inlet side of the air guide ring 300 to the air outlet side of the air guide ring 300 toward the radial outside of the air guide ring 300, and the guide groove is not arranged to extend obliquely from the radial inside of the air guide ring 300 to the radial outside of the air guide ring 300 toward the rotation direction of the impeller 200; or the guide groove may be arranged to extend obliquely from the radial inside of the air guide ring 300 to the radial outside of the air guide ring 300 toward the rotation direction of the impeller 200, and the guide groove is not arranged to extend obliquely from the air inlet side of the air guide ring 300 to the air outlet side of the air guide ring 300 toward the radial outside of the air guide ring 300, etc.; all of the above can achieve the purpose of the present application, and its purpose does not deviate from the design concept of the present application, and will not be repeated here, and all should fall within the protection scope of the present application.

[0042] In some examples, as shown in FIG6 , from the air inlet side of the air guide ring 300 to the air outlet side of the air guide ring 300, the inner circumferential surface of the air guide ring 300 includes a connected constricted ring segment 320 and a flared ring segment 330, and the guide groove includes a connected first groove segment 311 and a second groove segment 312. The first groove segment 311 is located on the side of the air guide ring 300 facing the air outlet area 110, and the second groove segment 312 is located on the flared ring segment 330. The constricted ring segment 320, the flared ring segment 330, and the guide groove collectively guide the airflow blown from the inner hole of the air guide ring 300. In the circumferential direction of the air guide ring 300, the portion of the expanded ring segment 330 and the portion of the contracted ring segment 320 corresponding to the area outside the second slot segment 312 jointly prevent the airflow from returning to the impeller 200 side from the area outside the second slot segment 312, and the portion of the contracted ring segment 320 corresponding to the area where the second slot segment 312 is located prevents the airflow from returning to the impeller 200 side from the second slot segment 312.

[0043] In some examples, as shown in FIG. 6 , the inner circumference of the air guide ring 300 further includes a straight ring segment 340 . The straight ring segment 340 is located between the shrinking ring segment 320 and the expanding ring segment 330 and connects the shrinking ring segment 320 and the expanding ring segment 330 .

[0044] When the guide groove does not extend to the straight ring segment 340, in the circumferential direction of the air guide ring 300, the expanded ring segment 330, the straight ring segment 340 and the portion of the narrowed ring segment 320 corresponding to the area outside the second groove segment 312 jointly prevent the air flow from returning to the impeller 200 side from the area outside the second groove segment 312, and the straight ring segment 340 and the portion of the narrowed ring segment 320 corresponding to the area where the second groove segment 312 is located jointly prevent the air flow from returning to the impeller 200 side from the second groove segment 312.

[0045] When the guide groove extends to the straight ring segment 340, as shown in Figure 6, the guide groove also includes a third groove segment 313, which is located in the straight ring segment 340 and is arranged to be connected to the second groove segment 312, so that the guide effect of the guide groove can be further improved. In the circumferential direction of the air guide ring 300, the expanded ring segment 330, the straight ring segment 340 and the narrowed ring segment 320 corresponding to the area outside the second groove segment 312 and the third groove segment 313 jointly prevent the airflow from the area outside the second groove segment 312 and the third groove segment 313 to return air to the impeller 200 side, and the narrowed ring segment 320 corresponding to the area where the second groove segment 312 and the third groove segment 313 are located prevents the airflow from returning air to the impeller 200 side from the third groove segment 313.

[0046] In some examples, as shown in Figures 3 to 6, one end of the guide groove adjacent to the inner hole of the air guide ring 300 is through, and the inner surface of the guide groove is a concave surface. The airflow blown toward the dividing boundary through the inner hole of the air guide ring 300 enters the guide groove from the through end of the guide groove, and then flows toward the extension area 112 under the guidance of the concave surface. The airflow is guided by the concave surface, and the energy loss of the airflow in the process of blowing through the concave surface is smaller, and the noise generated is also smaller.

[0047] In some embodiments, as shown in FIG2 , the side wall of the outer cover 100 includes an annular wall, the air outlet area 110 is located on the annular wall and is rectangular (i.e., when the annular wall is opened into a rectangular plate, the air outlet area 110 is square), the four corners of the air outlet area 110 are four extension areas 112, and the air guide portion 310 includes four, and the four air guide portions 310 are arranged in a one-to-one correspondence with the four extension areas 112, so that the noise generated by the air flow during the blowing process is smaller. Compared with the related art, the air outlet area 110 of the present application has a larger air volume at the same impeller 200 speed, and the power of the driving motor of the fan assembly of the present application is lower at the same air volume of the air outlet area 110. Of course, the air outlet area 110 can also be in other shapes, such as a triangle, a regular pentagon, a regular hexagon or an irregular shape, etc., which can all achieve the purpose of the present application. Its purpose does not deviate from the design concept of the present application, and will not be repeated here, and should all fall within the scope of protection of the present application.

[0048] It can be that, as shown in Figures 3 to 6, each guide portion 310 includes a guide groove; or it can be that each guide portion 310 includes multiple guide grooves, and the multiple guide grooves can be two, three or four, etc.; the above can all achieve the purpose of this application, and its purpose does not deviate from the design concept of this application, and will not be repeated here, and should all fall within the scope of protection of this application.

[0049] The experimental comparison results of the head assembly of the related art and the head assembly of the present application are as follows. The difference between the two is only whether the head assembly has the guide portion 310:

[0050] Table 1

[0051] It can be seen that the air volume of the air outlet area 110 of the present application is increased by about 4.4% to 6.3% at the same impeller speed of 200. 3 At an air volume of 1.5 mpg / h, the power of the drive motor of the fan assembly of the present invention is reduced by approximately 7%, and the noise generated during the blowing process of the airflow of the present invention is reduced by 1.7 dB. The air volume is the air volume at the air outlet area 110, the power is the power of the drive motor, the speed is the output speed of the drive motor, and the noise is the noise generated during the blowing process (i.e., the maximum noise measured at the air outlet area 110).

[0052] The heat pump water heater (not shown in the figure) proposed in the embodiment of the present application includes a water tank body and an air outlet assembly as described in any of the above embodiments. The air outlet assembly is arranged on the water tank body, and the air outlet assembly is the head assembly of the heat pump water heater.

[0053] This heat pump water heater has all the advantages of the air outlet assembly provided by any of the above embodiments, which will not be described in detail here.

[0054] Of course, the air outlet component can also be set as an air conditioner (such as the air conditioner outdoor unit of the air conditioner), which can also achieve the purpose of this application. Its purpose does not deviate from the design concept of this application and will not be repeated here. It should also fall within the scope of protection of this application.

[0055] In summary, the technical solution proposed in the embodiment of the present application is that when the fan assembly is in operation, the airflow is blown from the impeller through the inner hole of the air guide ring to the air outlet area. In the process of blowing the airflow to the inner hole of the air guide ring, the airflow blown toward the dividing boundary through the inner hole of the air guide ring flows to the extension area under the guidance of the guide portion, and finally blows out from the extension area, that is, the airflow originally blown out from the main area is diverted, so that part of the airflow blown from the main area is blown out from the extension area, and the other part is still blown out from the main area, thereby increasing the amount of airflow blown out through the extension area and reducing the amount of airflow blown out through the main area, making the airflow blown out from the air outlet area more dispersed, so that the noise generated by the airflow during the blowing process is smaller. Compared with the related art, the air outlet area of ​​the present application has a larger air volume at the same impeller speed, and the driving motor of the fan assembly of the present application has a lower power at the same air volume of the air outlet area.

[0056] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0058] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0059] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0060] It should be noted that the above-described embodiments or implementations are merely illustrative and not restrictive. Therefore, the present disclosure is not limited to what is specifically shown and described herein. Various modifications, substitutions, or omissions may be made to the forms and details of the implementations without departing from the scope of the present disclosure.

Claims

1. An air outlet assembly, comprising: An outer cover is provided with an air outlet area, wherein the air outlet area includes a main area and an extension area, wherein the extension area is located outside the main area and connected to the main area, and a portion where the extension area is connected to the main area is a dividing boundary; A fan assembly is disposed in the outer cover; and An air guide ring is provided between the fan assembly and the air outlet area, the impeller of the fan assembly and the main body area are both opposite to the inner hole of the air guide ring, and the extension area is offset from the inner hole of the air guide ring; Wherein, a guide portion is provided between the extension area and the air guide ring, and the guide portion is configured to guide the airflow blown toward the dividing boundary through the inner hole of the air guide ring to flow toward the extension area.

2. The air outlet assembly according to claim 1, wherein: The guide portion includes a guide groove, and the guide groove is arranged on a side of the air guide ring facing the air outlet area.

3. The air outlet assembly according to claim 2, wherein: The guide groove extends obliquely from the air inlet side of the air guide ring to the air outlet side of the air guide ring toward the radial outer side of the air guide ring.

4. The air outlet assembly according to claim 2, wherein: The guide groove extends obliquely from the radial inner side of the air guide ring to the radial outer side of the air guide ring toward the rotation direction of the impeller.

5. The air outlet assembly according to claim 2, wherein: From the air inlet side of the air guide ring to the air outlet side of the air guide ring, the inner circumferential surface of the air guide ring includes a connected shrinking ring segment and an expanding ring segment, and the guide groove includes a connected first groove segment and a second groove segment, the first groove segment is located on the side of the air guide ring facing the air outlet area, and the second groove segment is located on the expanding ring segment.

6. The air outlet assembly according to claim 5, wherein: The inner circumferential surface of the air guide ring further includes a straight ring segment, which is located between the shrinking ring segment and the expanding ring segment and connects the shrinking ring segment and the expanding ring segment.

7. The air outlet assembly according to claim 6, wherein: The guide groove further includes a third groove segment, which is located in the straight ring segment and is configured to be connected to the second groove segment.

8. The air outlet assembly according to claim 2, wherein: One end of the guide groove adjacent to the inner hole of the air guide ring is through, and the inner surface of the guide groove is a concave curved surface.

9. The air outlet assembly according to any one of claims 1 to 8, wherein: The side wall of the outer cover includes an annular wall, the air outlet area is located on the annular wall and is rectangular, the four corners of the air outlet area include four extension areas, and the guide parts are arranged in a one-to-one correspondence with the extension areas.

10. A heat pump water heater, comprising a water tank body and an air outlet assembly according to any one of claims 1 to 9, wherein the air outlet assembly is arranged on the water tank body.

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