Impeller, impeller stacking assembly and air conditioning equipment

Abstract

The utility model discloses an impeller, an impeller stacking assembly and air conditioning equipment, the impeller comprises a hub, the hub is provided with a hub groove and comprises a circumferential side wall defining the hub groove, the inner wall surface of the circumferential side wall is provided with a convex part, and the outer wall surface of the circumferential side wall is provided with a concave part; when the two impellers are stacked, the hub groove of one impeller is used for allowing the hub of the other impeller to be inserted, and at least part of the convex part of one impeller is inserted into the concave part of the other impeller in a matched mode. According to the impeller disclosed by the utility model, rotation stopping assembly between two impellers can be realized during stacking transportation, so that the condition that blades of the impeller are scratched due to rotation of the impeller caused by vibration is avoided, and the appearance of the impeller is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and in particular to an impeller, an impeller stacking assembly and an air conditioner. Background Art

[0002] The impeller is a core component of an air conditioner's outdoor unit, primarily responsible for blowing out hot air to achieve cooling. However, when two or more impellers are stacked and transported, they can experience circumferential misalignment and displacement due to transport vibrations. This can cause irreversible scratches on the blades of the lower impeller from the tip of the upper impeller, resulting in scratches and negatively impacting the user experience. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention proposes an impeller that can achieve anti-rotation assembly between two impellers during stacking and transportation, thereby avoiding the situation where the impeller blades are scratched due to the rotation of the impeller caused by vibration, and ensuring the appearance of the impeller.

[0005] An embodiment of the present invention further provides an impeller stack assembly including the above-mentioned impeller.

[0006] The embodiment of the present utility model further provides an air-conditioning device including the above-mentioned impeller.

[0007] The impeller of the embodiment of the utility model comprises:

[0008] A wheel hub, the wheel hub being provided with a hub groove and comprising a circumferential side wall surrounding the hub groove, the inner wall surface of the circumferential side wall being provided with a convex portion, and the outer wall surface of the circumferential side wall being provided with a concave portion;

[0009] When two impellers are stacked, the hub groove of one impeller is used for inserting the hub of the other impeller, and at least a portion of the protrusion of one impeller is plug-fitted into the recess of the other impeller.

[0010] In some embodiments, the recess is provided in the protrusion, and a portion of the circumferential side wall protrudes into the hub groove to construct the protrusion on the inner side of the circumferential side wall and the recess on the outer side of the circumferential side wall.

[0011] In some embodiments, the protrusion comprises:

[0012] a convex hull, the convex hull extending along the axial direction of the hub, at least a portion of the convex hull being plug-fitted into the concave portion;

[0013] A convex rib passes through the convex hull along the axial direction, and the convex rib is plugged into the concave portion.

[0014] In some embodiments, the recess comprises:

[0015] a first groove, wherein the end portion of the convex bump is plugged into the first groove;

[0016] The second groove passes through the first groove along the axial direction, and the rib is plugged into the second groove.

[0017] In some embodiments, the width of the rib in the circumferential direction of the hub is smaller than the width of the bulge in the circumferential direction of the hub, and the length of the rib in the axial direction is longer than the length of the bulge in the axial direction;

[0018] The width of the second groove in the circumferential direction of the hub is smaller than the width of the first groove in the circumferential direction of the hub, and the length of the second groove in the axial direction is longer than the length of the first groove in the axial direction.

[0019] In some embodiments, a groove depth dimension of the second groove in the radial direction of the hub is greater than a groove depth dimension of the first groove in the radial direction of the hub.

[0020] In some embodiments, the device comprises a plurality of blades, wherein the plurality of blades are provided on the outer peripheral side of the circumferential side wall and are spaced apart along the circumferential side wall;

[0021] There are a plurality of convex portions, and the plurality of convex portions and the plurality of blades are alternately arranged in the circumferential direction of the hub;

[0022] And / or, there are multiple recesses, and the multiple recesses and the multiple blades are alternately arranged in the circumferential direction of the hub.

[0023] In some embodiments, the radial dimension of the hub groove gradually decreases along the direction from the groove opening to the groove bottom of the hub groove.

[0024] In some embodiments, an axial hole portion is provided at the axis center of the hub, the axial hole portion is provided in the hub groove, and when two impellers are stacked, the axial hole portions of the two impellers are abutted and matched.

[0025] The impeller stack assembly of the embodiment of the present invention includes the impeller as described in any of the above embodiments.

[0026] In some embodiments, at least two impellers are included, and at least two impellers are stacked in the axial direction of the impeller, and the hub of one of the two adjacent impellers is plugged into the hub groove of the other one, and the protrusion of one of the two adjacent impellers is plugged into the recess of the other one.

[0027] The air conditioning device of the embodiment of the present utility model includes the impeller as described in any of the above embodiments.

[0028] Beneficial effects: The impeller, impeller stacking assembly and air-conditioning equipment of the embodiments of the utility model can realize anti-rotation assembly between the two impellers during stacking and transportation, thereby avoiding the situation where the impeller blades are scratched due to the rotation of the impeller caused by vibration, and ensuring the appearance of the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an axial schematic diagram of the impeller of an embodiment of the present utility model.

[0030] Figure 2 It is an axial cross-sectional view and a partially enlarged schematic view of the impeller of an embodiment of the present utility model.

[0031] Figure 3 Schematic diagram of the convex portion of an embodiment of the present invention.

[0032] Figure 4 Schematic diagram of the concave portion of an embodiment of the present invention.

[0033] Figure 5 It is a schematic diagram of the plug-in fit of the convex rib and the second groove when two impellers of an embodiment of the utility model are stacked.

[0034] Figure 6 This is a schematic diagram of the plug-in fit between the convex hull and the first groove of two impellers when stacked in the embodiment of the utility model.

[0035] Reference numerals:

[0036] 100-impeller;

[0037] 1- hub; 11- circumferential side wall; 12- hub groove; 13- convex portion; 131- convex hull; 1311- convex hull end; 132- convex rib; 14- concave portion; 141- first groove; 142- second groove; 15- end wall; 16- shaft hole portion;

[0038] 2-Leafs. DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0040] like Figure 1 As shown, the impeller 100 of the embodiment of the present invention includes a hub 1, which is provided with a hub groove 12 and includes a circumferential side wall 11 surrounding the hub groove 12, the inner wall surface of the circumferential side wall 11 is provided with a convex portion 13, and the outer wall surface of the circumferential side wall 11 is provided with a concave portion 14.

[0041] For example, Figure 2 As shown, the material of the hub 1 can be plastic, etc., and the hub 1 can be roughly a cap-shaped structure. The hub 1 includes a disc-shaped end wall 15 and a cylindrical circumferential side wall 11. The circumferential side wall 11 can extend along the axial direction of the hub 1, and the end wall 15 can be arranged at the end of the circumferential side wall 11 and seal one end of the circumferential side wall 11.

[0042] like Figure 1 As shown, the inner and outer directions of the hub 1 may be radial directions of the hub 1 , wherein the inner side may be the side facing the axis of the hub 1 , and the outer side may be the side facing the outer peripheral edge of the hub 1 .

[0043] like Figure 2 As shown, the inner wall surface of the circumferential side wall 11 may be integrally formed with a protrusion 13, which is a protruding portion protruding from the inner wall surface of the circumferential side wall 11. The outer wall surface of the circumferential side wall 11 may be integrally formed with a recess 14, which is a recessed portion recessed toward the inner side of the circumferential side wall 11.

[0044] When two impellers 100 are stacked, the hub groove 12 of one impeller 100 is used for inserting the hub 1 of the other impeller 100 , and at least part of the protrusion 13 of one impeller 100 is plug-fitted into the recess 14 of the other impeller 100 .

[0045] For example, Figure 2 As shown, the two impellers 100 can be stacked in the axial direction of the impellers 100, and the stacking direction can specifically be the up-down direction. When stacked, the notches of the hub grooves 12 of the two impellers 100 can be arranged facing each other, so that the hub 1 of the lower impeller 100 can be inserted into the hub groove 12 of the hub 1 of the upper impeller 100, and the protrusion 13 of the upper impeller 100 can be inserted into the recess 14 of the lower impeller 100.

[0046] The impeller 100 of the embodiment of the present invention is provided with a protrusion 13 and a recess 14 on the circumferential side wall 11 of the hub 1. The anti-rotation assembly of the two impellers 100 can be achieved by plugging and fitting the protrusion 13 and the recess 14, thereby avoiding the circumferential relative rotation of the two stacked impellers 100 due to vibration during transportation, and thus avoiding the problem that the tip of the upper impeller 100 easily scratches the blade 2 of the lower impeller 100 when there is circumferential misalignment, thereby ensuring the overall appearance of the impeller 100.

[0047] Secondly, compared with the related art in which a concave-convex matching structure is set at the axis of the impeller 100, the impeller 100 of the embodiment of the utility model will not produce interference at the axis, and also reduces the complexity of the structure at the axis, which is beneficial to reducing the overall material cost and simplifying the overall processing technology.

[0048] In addition, the arrangement of the convex portion 13 and the concave portion 14 can also enhance the structural strength of the circumferential side wall 11 of the hub 1, thereby fully meeting the structural strength requirements of the hub 1 when the impeller 100 rotates.

[0049] In some embodiments, the recess 14 is provided in the protrusion 13 , and a portion of the circumferential sidewall 11 protrudes into the hub groove 12 to form the protrusion 13 on the inner side of the circumferential sidewall 11 and the recess 14 on the outer side of the circumferential sidewall 11 .

[0050] For example, the recess 14 and the protrusion 13 can be integrally formed by injection molding. During processing, a portion of the circumferential side wall 11 can be raised inward by the mold, so that the protrusion 13 can be constructed on the inner wall surface of the circumferential side wall 11, and the portion of the outer wall surface of the circumferential side wall 11 corresponding to the protrusion 13 will be recessed inward, so that the recess 14 can be constructed, thereby facilitating the processing of the protrusion 13 and the recess 14, and also making the protrusion 13 and the recess 14 arranged as one, which is beneficial to simplifying the overall structure and improving space utilization.

[0051] In some embodiments, the protrusion 13 includes a bulge 131 and a rib 132. The bulge 131 extends axially along the wheel hub 1. At least part of the bulge 131 is plugged into the recess 14. The rib 132 passes through the bulge 131 axially and is plugged into the recess 14.

[0052] For example, Figure 3 As shown, the bulge 131 can be generally rectangular and extended along the axial direction of the hub 1, the rib 132 can be a flat structure, a portion of the rib 132 can be located on the circumferential side wall 11, and another portion of the rib 132 can be located on the above-mentioned end wall 15. The rib 132 located on the circumferential side wall 11 can pass through the convex portion 13 along the central axis of the bulge 131, so that the convex portion 13 is generally in a "convex" shape.

[0053] During assembly, a portion of the convex bump 131 and the convex rib 132 can be fully inserted and fitted into the concave portion 14, thereby increasing the contact area between the convex portion 13 and the concave portion 14, and further enhancing the overall limiting constraint strength. It can also be beneficial to improve the overall structural strength of the convex portion 13, thereby meeting the use needs of force transmission, etc.

[0054] In some embodiments, the recess 14 includes a first groove 141 and a second groove 142 , the end of the convex bump 131 is plugged into the first groove 141 , the second groove 142 passes through the first groove 141 axially, and the rib 132 is plugged into the second groove 142 .

[0055] For example, Figure 4 As shown, the first groove 141 and the second groove 142 can both be long grooves, the first groove 141 can extend circumferentially along the circumferential side wall 11, and the second groove 142 can extend axially along the hub 1, that is, the first groove 141 and the second groove 142 can be roughly arranged vertically and cross-arranged, and the overall structure formed by the first groove 141 and the second groove 142 can also be in a "convex" shape.

[0056] When two impellers 100 are stacked, as Figure 5 As shown, the rib 132 can be plugged into the second groove 142, as shown in FIG. Figure 6 As shown, the convex end 1311 of the convex portion 131 away from the end wall 15 can be plugged into the first groove 141. This can enhance the limiting and restraining effect. On the other hand, the larger circumferential size of the first groove 141 facilitates the plug-in assembly of the convex portion 13 and the concave portion 14, thereby improving the convenience of assembly.

[0057] In some embodiments, as Figure 3 As shown, the width dimension L2 of the rib 132 in the circumferential direction of the hub 1 is smaller than the width dimension L1 of the bulge 131 in the circumferential direction of the hub 1, and the length dimension H1 of the rib 132 in the axial direction is longer than the length dimension H2 of the bulge 131 in the axial direction.

[0058] like Figure 4 As shown, the width dimension L4 of the second groove 142 in the circumferential direction of the hub 1 is smaller than the width dimension L3 of the first groove 141 in the circumferential direction of the hub 1, and the length dimension H3 of the second groove 142 in the axial direction is longer than the length dimension H4 of the first groove 141 in the axial direction.

[0059] Thereby, the structural complexity of the convex portion 13 and the concave portion 14 can be increased, and the position limiting and restraining effect of the convex portion 13 and the concave portion 14 can be improved.

[0060] In some embodiments, as Figure 2As shown, the groove depth h1 of the second groove 142 in the radial direction of the hub 1 is greater than the groove depth h2 of the first groove 141 in the radial direction of the hub 1. This can avoid the rib 132, facilitate the rib 132 to be directly inserted into the second groove 142 from the end thereof, and also enhance the local structural strength and improve the limiting and restraining effect of the convex portion 13 and the concave portion 14.

[0061] In some embodiments, the impeller 100 includes a plurality of blades 2, which are disposed on the outer circumference of the circumferential sidewall 11 and spaced apart along the circumferential sidewall 11. For example, Figure 1 As shown, there may be three blades 2 , and the three blades 2 may be integrally formed on the outer peripheral side of the circumferential side wall 11 by injection molding, and the three blades 2 may be arranged at equal intervals along the circumference of the hub 1 .

[0062] There are multiple protrusions 13, and the multiple protrusions 13 and the multiple blades 2 are arranged alternately along the circumference of the hub 1. For example, the number of protrusions 13 can be the same as the number of blades 2, or there can be three protrusions 13, and the three protrusions 13 and the three blades 2 can be arranged alternately along the circumference of the impeller 100. This facilitates circumferential misalignment of the protrusions 13 and blades 2 during stacking, improving the convenience of stacking.

[0063] In some embodiments, there are multiple recesses 14, and the multiple recesses 14 and the multiple blades 2 are alternately arranged in the circumferential direction of the hub 1. For example, the number of recesses 14 can be the same as the number of protrusions 13, and the multiple recesses 14 can be arranged in a one-to-one correspondence within the multiple protrusions 13, thereby utilizing the internal space of the protrusions 13 and facilitating the plug-in fit of two impellers 100 when stacked.

[0064] In some embodiments, the radial dimension of the hub groove 12 gradually decreases along the direction from the groove opening to the groove bottom of the hub groove 12. Figure 5 As shown, the direction from the notch opening to the bottom of the hub groove 12 is the axial direction of the hub 1, specifically the up-down direction, and in this case, the notch opening is located below the bottom of the groove. The radial dimension of the hub groove 12 can gradually decrease from bottom to top, thereby maximizing the radial dimension of the notch opening, thereby facilitating the insertion of the hub 1 of one impeller 100 into the hub groove 12 of another impeller 100. Furthermore, the two circumferential sidewalls 11 can support each other, thereby enhancing the support of the two impellers 100 on the hub 1.

[0065] Optionally, the hub groove 12 may be a truncated cone-shaped groove.

[0066] In some embodiments, an axial hole portion 16 is provided at the axis center of the hub 1 . The axial hole portion 16 is disposed in the hub groove 12 . When two impellers 100 are stacked, the axial holes 16 of the two impellers 100 are abutted and matched.

[0067] For example, Figure 5 As shown, the shaft hole portion 16 can be integrally formed at the center of the end wall 15 of the hub 1 by injection molding, and a through hole is provided in the shaft hole portion 16. The shaft hole portion 16 can pass through the end wall 15, that is, the shaft hole portion 16 can protrude from both sides of the end wall 15 along the axial direction.

[0068] like Figure 5 As shown, when the two impellers 100 are stacked, the axial hole portions 16 of the two impellers 100 can stop in contact, thereby making the circumferential side wall 11 and the axis center have a supporting function, wherein the circumferential side wall 11 is supported by the cooperation of the convex portion 13 and the concave portion 14, and the axis center is supported by the two axial hole portions 16, thereby improving the overall supporting effect and supporting strength, and avoiding the situation of being easily shaken off during transportation.

[0069] The following describes an impeller stack assembly according to an embodiment of the present invention.

[0070] The impeller stack assembly of the embodiment of the present invention includes an impeller 100 , and the impeller 100 may be the impeller 100 described in any of the above embodiments.

[0071] In some embodiments, the impeller stack assembly includes at least two impellers 100, which are stacked in the axial direction of the impeller 100, and the hub 1 of one of the two adjacent impellers 100 is plugged into the hub groove 12 of the other one, and the protrusion 13 of one of the two adjacent impellers 100 is plugged into the recess 14 of the other one.

[0072] For example, Figure 5 and Figure 6 As shown, the impeller stack assembly may include two impellers 100 stacked in the vertical direction, wherein the hub 1 of the lower impeller 100 can be inserted into the hub groove 12 of the upper impeller 100, and the multiple protrusions 13 of the upper impeller 100 can be plugged and assembled into the multiple recesses 14 of the lower impeller 100 in a one-to-one correspondence. This fully ensures the structural stability of the two impellers 100 when stacked, thereby preventing the blades 2 from being easily scratched due to circumferential displacement.

[0073] The air conditioning device according to an embodiment of the present invention is described below.

[0074] The air-conditioning device of the embodiment of the present invention may be an outdoor air-conditioning unit, which may include the impeller 100 as described in any of the above embodiments.

[0075] In other embodiments, the impeller 100 may also be applied to other fan equipment that requires stacking and transporting the impeller 100, for example, fans, industrial fans, etc. This can also prevent the blades 2 from being scratched, ensuring the overall appearance.

[0076] Although the above embodiments have been shown and described, it is understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments made by ordinary technicians in this field are all within the scope of protection of the present invention.

Claims

1. An impeller (100), characterized in that: include: A wheel hub (1), the wheel hub (1) being provided with a hub groove (12) and comprising a circumferential side wall (11) surrounding the hub groove (12), the inner wall surface of the circumferential side wall (11) being provided with a convex portion (13), and the outer wall surface of the circumferential side wall (11) being provided with a concave portion (14); When two impellers (100) are stacked, the hub groove (12) of one impeller (100) is used for inserting the hub (1) of the other impeller (100), and at least a portion of the convex portion (13) of one impeller (100) is plug-fitted into the concave portion (14) of the other impeller (100).

2. The impeller (100) according to claim 1, characterized in that The recess (14) is provided in the convex portion (13), and a portion of the circumferential side wall (11) protrudes into the hub groove (12) to construct the convex portion (13) on the inner side of the circumferential side wall (11), and the recess (14) is constructed on the outer side of the circumferential side wall (11).

3. The impeller (100) according to claim 1, characterized in that The convex portion (13) comprises: a convex hump (131), the convex hump (131) extending along the axial direction of the wheel hub (1), and at least a portion of the convex hump (131) being plug-fitted into the recess (14); A convex rib (132) passes through the convex hull (131) along the axial direction, and the convex rib (132) is plugged into the concave portion (14).

4. The impeller (100) according to claim 3, characterized in that The recess (14) includes: a first groove (141), wherein the end of the convex bump (131) is plugged into and fitted into the first groove (141); A second groove (142), wherein the second groove (142) passes through the first groove (141) along the axial direction, and the rib (132) is plugged into and fitted in the second groove (142).

5. The impeller (100) according to claim 4, characterized in that The width dimension of the rib (132) in the circumferential direction of the hub (1) is smaller than the width dimension of the bulge (131) in the circumferential direction of the hub (1), and the length dimension of the rib (132) in the axial direction is longer than the length dimension of the bulge (131) in the axial direction; The width dimension of the second groove (142) in the circumferential direction of the hub (1) is smaller than the width dimension of the first groove (141) in the circumferential direction of the hub (1), and the length dimension of the second groove (142) in the axial direction is longer than the length dimension of the first groove (141) in the axial direction.

6. The impeller (100) according to claim 4, characterized in that The groove depth dimension of the second groove (142) in the radial direction of the wheel hub (1) is greater than the groove depth dimension of the first groove (141) in the radial direction of the wheel hub (1).

7. The impeller (100) according to claim 1, characterized in that It comprises a plurality of blades (2), wherein the plurality of blades (2) are arranged on the outer peripheral side of the circumferential side wall (11) and are spaced apart along the circumferential side wall (11); There are a plurality of convex portions (13), and the plurality of convex portions (13) and the plurality of blades (2) are alternately arranged in the circumferential direction of the hub (1); And / or, there are a plurality of recesses (14), and the plurality of recesses (14) and the plurality of blades (2) are alternately arranged in the circumferential direction of the hub (1).

8. The impeller (100) according to claim 1, characterized in that The radial dimension of the hub groove (12) gradually decreases along the direction from the groove opening to the groove bottom of the hub groove (12).

9. The impeller (100) according to any one of claims 1 to 8, characterized in that: An axial hole portion (16) is provided at the axis center of the hub (1), the axial hole portion (16) is provided in the hub groove (12), and when two impellers (100) are stacked, the axial hole portions (16) of the two impellers (100) are abutted and matched.

10. An impeller stack assembly, characterized in that: The impeller (100) comprises an impeller (100) as described in any one of claims 1 to 9 above, wherein at least two impellers (100) are stacked in the axial direction of the impeller (100), and the hub (1) of one of the two adjacent impellers (100) is plug-fitted into the hub groove (12) of the other one, and the protrusion (13) of one of the two adjacent impellers (100) is plug-fitted into the recess (14) of the other one.

11. An air conditioning device, characterized in that: The invention comprises an impeller (100) as claimed in any one of claims 1 to 9.

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