Impeller and fan assembly
By incorporating through holes and air guides in the impeller, the airflow path is optimized, solving the problem of insufficient heat dissipation in the air-cooled system and achieving a more efficient motor cooling effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-03
AI Technical Summary
In existing technologies, the heat dissipation capacity of air-cooled systems is insufficient, and they cannot effectively cool the motor, resulting in unmet heat dissipation requirements of the equipment.
Design an impeller including a hub and multiple blades. Through holes are provided on the end face and side face of the hub, and air guides are formed between the blades to guide airflow and improve heat dissipation efficiency.
By optimizing the impeller structure, faster and more efficient airflow was achieved, improving the heat dissipation capacity of the fan assembly and extending the service life of the equipment.
Smart Images
Figure CN223964655U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of fan structures. More specifically, this application relates to an impeller designed to provide improved heat dissipation capabilities. This application also relates to a fan assembly including the aforementioned impeller. Background Technology
[0002] Air-cooled or wind-cooled systems are commonly used to cool electric motors. For example, the electric motors in automobiles are cooled by air and can be called air-cooled motors. Many devices in vehicles require air-cooled motors, including but not limited to engine cooling systems, air conditioning systems, internal air circulation systems, seat ventilation systems, thermal management systems for new energy vehicles, and energy recovery systems. Therefore, there is a continuous need in this field for improved heat dissipation capabilities and solutions. Summary of the Invention
[0003] One objective of this application is to provide an impeller capable of quickly and efficiently providing an airflow for cooling. Another objective of this application is to provide a fan assembly including the aforementioned impeller.
[0004] The objective of this application is achieved through the following technical solution:
[0005] An impeller comprising:
[0006] A hub, comprising an end face and a side face, the end face being arranged perpendicular to the axial direction, and the side face extending from the outer peripheral edge of the end face and extending along the axial direction; and
[0007] Multiple blades, extending from the sides;
[0008] The end face includes multiple end face through holes, and the side face includes multiple side face through holes.
[0009] In the impeller described above, the end face through hole may optionally be located at one or more of the following positions: a position on the end face near the outer peripheral edge, a position on the end face near the center, or a space between the two positions.
[0010] In the impeller described above, optionally, the end face is circular in shape, and a central through hole is provided at the center of the end face for mounting a motor; multiple end face through holes are arranged to be spaced apart from each other and distributed along one or more virtual circles with the center of the end face as the center.
[0011] In the impeller described above, optionally, the proximal end of the blade extends from the outer peripheral surface of the side and extends in the radial direction, and the blades are distributed at intervals between each other.
[0012] In the impeller described above, optionally, the side through holes are arranged between adjacent blades, or formed by a notch at one end of the side near the end face.
[0013] Optionally, the impeller described above may include an outer ring, to which the distal ends of the blades are attached.
[0014] In the aforementioned impeller, optionally, the end face through-hole and / or side through-hole are constructed with an outline having one of the following shapes: circular, semi-circular, elliptical, triangular, prismatic, trapezoidal, rectangular, regular pentagonal, regular hexagonal, and combinations thereof.
[0015] In the impeller described above, optionally, the end face through hole and / or the side through hole have a semi-circular profile and each includes a guide portion extending from the edge of the profile.
[0016] In the impeller described above, optionally, a portion of the air guide section is located on one side of the end face and / or side, and another portion of the air guide section is located on the other side of the end face and / or side.
[0017] A fan assembly, comprising:
[0018] support;
[0019] The motor, which is attached to the bracket; and
[0020] The aforementioned impeller, wherein the hub is attached to the rotor of the motor. Attached Figure Description
[0021] The present application will be further described in detail below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art will appreciate that these drawings are drawn for the purpose of explaining the preferred embodiments only and therefore should not be construed as limiting the scope of the present application. Furthermore, unless specifically indicated, the drawings are intended only to conceptually represent the composition or structure of the described objects and may contain exaggerated representations. The drawings are also not necessarily drawn to scale.
[0022] Figure 1 This is a perspective view of one embodiment of the impeller of this application.
[0023] Figure 2 yes Figure 1 Another perspective view of the embodiment shown.
[0024] Figure 3 This is a perspective view of another embodiment of the impeller of this application.
[0025] Figure 4 yes Figure 3 Another perspective view of the embodiment shown.
[0026] Figure 5This is a perspective view of yet another embodiment of the impeller of this application.
[0027] Figure 6 yes Figure 5 Another perspective view of the embodiment shown.
[0028] Figure 7 This is a perspective view of one embodiment of the fan assembly of this application.
[0029] Figure 8 yes Figure 7 Another perspective view of the embodiment shown.
[0030] Figure 9 This is a perspective view of another embodiment of the fan assembly of this application.
[0031] Figure 10 yes Figure 9 Another perspective view of the embodiment shown. Detailed Implementation
[0032] Preferred embodiments of this application will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of this application.
[0033] First, it should be noted that the directional terms such as top, bottom, upward, and downward mentioned in this article are defined relative to the directions shown in the various accompanying figures. These directions are relative concepts and will therefore vary depending on their location and state. Therefore, these or other directional terms should not be construed as restrictive.
[0034] Furthermore, it should be noted that any single technical feature described or implied in the embodiments herein, or any single technical feature shown or implied in the accompanying drawings, can be further combined to obtain other embodiments not directly mentioned herein.
[0035] It should be noted that in different figures, the same reference numerals denote the same or substantially the same parts.
[0036] Figure 1 and Figure 2An embodiment of the impeller of this application is illustrated. As shown, the impeller 10 may include a hub 100, a plurality of blades 200, and an outer ring 300, etc. The hub 100 may include an end face 110 and a side face 120. The end face 110 may be arranged to extend perpendicular to the axial direction AA and may extend along the radial direction RR. In one or more embodiments, the end face 110 may be configured to have a generally circular shape and a generally circular outer peripheral surface. In one or more embodiments, the side face 120 may extend from the outer peripheral edge of the end face 110 and extend along the axial direction AA.
[0037] Multiple blades 200 may extend from the side 120. The proximal ends of the blades 200 may extend from the outer peripheral surface of the side 120 of the hub 100 and extend in the radial direction RR. In one or more embodiments, the blades 200 may be spaced apart from each other, for example, distributed substantially uniformly in the circumferential direction CC along the outer peripheral surface of the side 120 of the hub 100.
[0038] The outer ring 300 can be constructed in a generally annular shape, and the distal end of the blade 200 can be attached to the outer ring 300.
[0039] In one or more embodiments, the hub 100, the plurality of blades 200, and the outer ring 300 may be constructed as a single unit, for example, by injection molding.
[0040] In this document, the axial direction AA refers to the direction of the rotation axis of the impeller 10, or the direction of the rotation axis of the motor. The radial direction RR refers to the direction pointed to by a ray extending from a point on the axial direction AA in a plane perpendicular to the axial direction AA. The circumferential direction CC refers to the direction pointed to by a circle centered at a point on the axial direction AA, arranged in a plane perpendicular to the axial direction AA.
[0041] In the illustrated embodiment, end face 110 may include a plurality of end face through holes 111, and side face 120 may include a plurality of side through holes 121. The end face through holes 111 and side through holes 121 may be arranged on the side of end face 110 and side face 120 facing the heat-generating component of the motor (not shown), and may be arranged as close as possible to the heat-generating component of the motor (not shown).
[0042] In one or more embodiments, the end face through-hole 111 may be provided at one or more of the following locations: a position on the end face 110 near the outer peripheral edge, a position on the end face 110 near the center, or in the space between the two positions. For example, a central through-hole 112 may be provided at the center of the end face 110, which can be used to mount a motor. A plurality of end face through-holes 111 are arranged spaced apart from each other and distributed along one or more virtual circles centered on the center of the end face 110. Figure 1 and Figure 2 In the illustrated embodiment, a plurality of end-face through holes 111 are distributed along two virtual circles, and each virtual circle has seven end-face through holes 111. It is readily understood that the end-face through holes 111 can be arranged along more or fewer virtual circles, and the number of end-face through holes 111 arranged on each virtual circle can be greater than, less than, or equal to seven. In the illustrated embodiment, the end-face through holes 111 may have a generally semi-circular outline.
[0043] In the illustrated embodiment, the side through-holes 121 may be arranged between adjacent blades 200 and may be arranged substantially uniformly around the circumferential direction CC. The side through-holes 121 may have a generally trapezoidal profile.
[0044] The end face through-hole 111 and / or the side through-hole 121 can have any suitable size and can be constructed with a profile having one of the following shapes: circular, semi-circular, elliptical, triangular, prismatic, trapezoidal, rectangular, regular pentagonal, regular hexagonal, or combinations thereof. Figure 1 and Figure 2 In the illustrated embodiment, the end face through-hole 111 and / or the side through-hole 121 may have a semi-circular profile and each includes a guide portion 113 extending from the edge of the profile. A portion of the guide portion 113 is disposed on one side of the end face 110 and / or the side surface 120, and another portion of the guide portion 113 is disposed on the other side of the end face 110 and / or the side surface 120. Figure 2 In the middle, the air guide section pointed to by the upper reference numeral 113 can be provided on the side of the end face 110 facing the motor (not shown), and Figure 2 The air guide 113, indicated by reference numeral 113 in the lower middle part, can be located on the side of the end face 110 opposite to the motor (not shown). The air guide 113 can be constructed as part of a sphere, and can have an opening on one side and be closed on the other side. The air guide 113 can guide the direction of airflow, thereby achieving better air cooling effect.
[0045] Furthermore, despite Figure 1 and Figure 2All end face through holes 111 and air guides 113 shown in the embodiments have generally the same shape, but the end face through holes 111 and air guides 113 in a single embodiment may also have different shapes and configurations, and may be implemented in any arrangement and combination.
[0046] exist Figure 3 and Figure 4 In the illustrated embodiment, an impeller 10' according to another embodiment of this application may include: a hub 100', a plurality of blades 200', and an outer ring 300', etc. The hub 100' may include an end face 110' and a side face 120'. The end face 110' may include a central through hole 112' and a plurality of end face through holes 111', and the side face 120' may include a plurality of side through holes 121'. The end face through holes 111' may be configured to be generally circular. A row of end face through holes 111' may be arranged on the end face 110' near its outer peripheral edge, and the number of end face through holes 111' may be fourteen. The side through holes 121' may have a generally trapezoidal profile.
[0047] exist Figure 5 and Figure 6 In the illustrated embodiment, the impeller 10” according to another embodiment of this application may include: a hub 100”, a plurality of blades 200”, and an outer ring 300”, etc. The hub 100” may include an end face 110” and a side face 120”. The end face 110” may include a central through hole 112” and a plurality of end face through holes 111”, and the side face 120” may include a plurality of side through holes 121”. The end face through holes 111” may be configured to be generally circular. A row of end face through holes 111” may be arranged on the end face 110” near the outer peripheral edge, and the number of end face through holes 111” may be fourteen. The side through holes 121” may be formed by a notch at one end of the side face 120” near the end face 110”. The notch may extend from one end of the side face 120” near the end face 110” in a generally axial direction AA and extend beyond the position of the end face 110”, so that the space on the other side of the end face 110” communicates with the notch to form the side through hole 121. The side through-hole 121” may have a roughly trapezoidal profile.
[0048] Figures 7 to 10Different embodiments of the fan assembly of this application are shown. This application relates to a fan assembly comprising: a bracket 20, a motor 30 attached to the bracket 20, and an impeller 10 as described above. A hub 110 may be attached to and driven by the rotor of the motor 30. For example, the motor 30 may be disposed in the space enclosed by the side 120 and the end face 110. In use, the side through-holes and the end face through-holes may form gas channels to guide gas and generate an airflow circulating around the periphery of the side 120, thereby effectively cooling the motor 30. For another example, the rotor or one side of the rotor of the motor 30 may be attached to the impeller 10, and the stator or one side of the stator of the motor 30 may be attached to the bracket 20. The bracket 20 may be arranged generally around the periphery of the motor 30 and may include a body 21 and one or more extensions 22. The body 21 may be fitted around the outer periphery of the motor 30, and the extensions 21 may extend from the outer peripheral surface of the body 21 and extend to the outer ring 300 of the impeller 10.
[0049] It is easy to understand that, Figure 7 and Figure 8 The impeller in the fan assembly shown can be... Figures 3 to 4 The embodiments shown are essentially the same, and Figure 9 and Figure 10 The impeller in the fan assembly shown can be... Figures 5 to 6 The embodiments shown are basically the same.
[0050] The impeller and fan assembly of this application has the advantages of being simple, reliable, easy to implement, and convenient to use. It can provide improved cooling airflow, enhance heat dissipation capacity, and extend service life.
[0051] This specification discloses the present application with reference to the accompanying drawings, and also enables those skilled in the art to implement the application, including making and using any device or system, selecting suitable materials, and using any combination method. The scope of this application is defined by the claimed technical solution, but includes other instances that would occur to those skilled in the art. Such other instances shall be considered to fall within the scope of protection defined by the claimed technical solution, provided that they include structural elements that are not different from the literal language of the claimed technical solution, or that they include equivalent structural elements that are not substantially different from the literal language of the claimed technical solution.
Claims
1. An impeller, characterized by, Comprising: a hub (100) including an end face (110) arranged perpendicular to an axial direction (A-A) and a side face (120) extending from an outer peripheral edge of the end face (110) and along the axial direction (A-A); and a plurality of blades (200) extending from the side face (120); wherein the end face (110) includes a plurality of end face through holes (111), and the side face (120) includes a plurality of side face through holes (121).
2. The impeller of claim 1, wherein The end face through holes (111) are provided at one or more of the following positions: a position on the end face (110) close to the outer peripheral edge, a position on the end face (110) close to the center, a space between the above two positions.
3. The impeller of claim 2, wherein The end face (110) is configured in a circular shape, and a center through hole (112) for installing a motor is provided at the center of the end face (110), and the plurality of end face through holes (111) are arranged to be spaced apart from each other and distributed along one or more virtual circles having the center of the end face (110) as a center.
4. The impeller of claim 1, wherein Proximal ends of the blades (200) extend from an outer peripheral surface of the side face (120) and in a radial direction (R-R), and the blades (200) are distributed to be spaced apart from each other.
5. The impeller of claim 4, wherein The side face through holes (121) are arranged between adjacent blades (200), or are formed by a notch at one end of the side face (120) close to the end face (110).
6. The impeller of claim 4, wherein An outer ring (300) to which distal ends of the blades (200) are attached is included.
7. The impeller of any one of claims 1-6, wherein, The end face through holes (111) and / or the side face through holes (121) are configured to have a profile in one of the following shapes: a circle, a semicircle, an ellipse, a triangle, a prism, a trapezoid, a rectangle, a regular pentagon, a regular hexagon, and combinations thereof.
8. The impeller of claim 7, wherein The end face through holes (111) and / or the side face through holes (121) have a profile in a semicircle shape, and include a wind guide portion (113) extending from a profile edge, respectively.
9. The impeller of claim 8, wherein One portion of the wind guide portions (113) is provided at one side of the end face (110) and / or the side face (120), and another portion of the wind guide portions (113) is provided at the other side of the end face (110) and / or the side face (120).
10. A fan assembly characterized by, Comprising: a bracket (20); a motor (30) attached to the bracket (20); and the impeller (10) according to any one of claims 1-9, wherein the hub (100) is attached to a rotor of the motor (30).