Heat dissipation type motor hub

Abstract

The utility model relates to a heat dissipation type motor hub which comprises a hub body and a center shaft, the hub body is rotationally connected to the center shaft in the center line direction of the center shaft, the heat dissipation type motor hub further comprises a heat dissipation mechanism, the heat dissipation mechanism is used for conducting heat dissipation on the hub body, and the heat dissipation mechanism comprises a rotating ring, a plurality of heat dissipation fins and a driving part; the rotating ring is rotationally connected to the center shaft in the axis direction of the center shaft, the multiple cooling fins are evenly arranged on the rotating ring along the circumferential side face of the rotating ring, and the driving part is used for driving the rotating ring to rotate. The rotating ring is driven by the driving part to rotate, so that the plurality of cooling fins rotate together with the rotating ring to cool the hub main body, and the cooling performance of the motor hub is improved.

Description

Technical Field

[0001] The utility model relates to the field of motor hubs, in particular to a heat dissipation type motor hub. Background Art

[0002] In-wheel motors are motors built into the wheels. Their greatest feature is that they integrate the power, transmission, and braking systems into the wheel hub, significantly simplifying the mechanical components of the electric vehicle. In addition to a simpler structure, vehicles powered by in-wheel motors can achieve better space utilization and significantly higher transmission efficiency.

[0003] The utility model with publication number CN212163124U discloses a hub motor, including a tire, a stator, a rotor and a housing. The stator includes a rotating shaft and a stator core. A stator winding is wound around the surface of the stator core. The stator core is fixedly sleeved on the surface of the rotating shaft. A threading hole is opened inside the rotating shaft, and through holes are also opened on both sides of the surface. The rotor includes a magnetic steel and a plurality of magnets. The plurality of magnets are glued to the inner wall of the magnetic steel in an annular array.

[0004] The motor hub in the aforementioned technical solution requires continuous power output, generating significant heat. However, the motor hub lacks a heat dissipation mechanism. In the confined space of the hub, failure to dissipate heat from the motor hub can easily lead to reduced motor performance or even burnout. Utility Model Content

[0005] In order to improve the heat dissipation performance of the motor hub, the present application provides a heat dissipation type motor hub.

[0006] The heat dissipation motor hub provided in this application adopts the following technical solution:

[0007] A heat-dissipating motor hub comprises a hub body and a central shaft. The hub body is rotatably connected to the central shaft along its midline. The hub body also includes a heat dissipation mechanism for dissipating heat from the hub body. The heat dissipation mechanism comprises a rotating ring, multiple heat sinks, and a drive element. The rotating ring is rotatably connected to the central shaft along its axis. The multiple heat sinks are evenly arranged on the rotating ring along its circumferential side. The drive element is used to drive the rotating ring.

[0008] By adopting the above technical solution, the driving member drives the rotating ring to rotate, so that the multiple heat sinks rotate together with the rotating ring to dissipate heat from the hub body, thereby improving the heat dissipation performance of the motor hub.

[0009] Preferably, the driving member includes an inner ring gear, an outer ring gear and a plurality of pinion gears, the inner ring gear is coaxial and fixedly connected to the outside of the hub body, the outer ring gear is also fixedly connected to the side of the plurality of heat sinks away from the rotating ring, the plurality of pinion gears are respectively connected to the hub body in a rotation direction of the hub body, and the plurality of pinion gears are respectively meshed with the inner ring gear and the outer ring gear.

[0010] By adopting the above technical solution, the rotation of the hub body drives the inner ring gear to rotate together, and multiple small gears are respectively engaged with the inner ring gear and the outer ring gear, so that the multiple small gears and the inner ring gear rotate together, thereby causing the multiple heat sinks fixedly connected to the inner ring gear to rotate, dissipating the heat of the hub body, thereby improving the heat dissipation performance of the motor hub.

[0011] Preferably, the plurality of pinions are coaxially and fixedly connected to the impeller.

[0012] By adopting the above technical solution, when the multiple small gears rotate, the impellers above them are driven to rotate together, dissipating the heat of the hub body, thereby improving the heat dissipation performance of the motor hub.

[0013] Preferably, a plurality of connecting rods are provided on the rotating ring, and the plurality of pinions correspond to the plurality of connecting rods, and the plurality of pinions are respectively connected to the connecting rods so as to rotate along the rotation direction of the hub body.

[0014] By adopting the above technical solution, multiple small gears can rotate around the central axis, so that the impeller can dissipate heat at irregular points, thereby increasing the heat dissipation area of ​​the impeller to the hub body and improving the heat dissipation performance of the motor hub.

[0015] Preferably, air flow holes are respectively provided on the plurality of connecting rods.

[0016] By adopting the above technical solution, when the connecting rod rotates, the air flow holes on the connecting rod can introduce air flow to one side of the hub body, thereby achieving the purpose of heat dissipation.

[0017] Preferably, a dust cover is provided on the hub body, and the plurality of heat sinks are located inside the dust cover.

[0018] By adopting the above technical solution, the possibility of heat dissipation difficulties caused by dust accumulation on the heat sink is reduced.

[0019] Preferably, the outer side of the hub body is provided with a reflective strip

[0020] By adopting the above technical solution, it is easy to observe the electric vehicle equipped with the motor hub, thereby improving the safety of the electric vehicle when driving at night.

[0021] The technical effects of this utility model are mainly reflected in the following aspects:

[0022] 1. The utility model provides a rotating ring and heat sinks, and drives the rotating ring to rotate through a driving member, so that the multiple heat sinks rotate together with the rotating ring to dissipate heat from the hub body, thereby improving the heat dissipation performance of the motor hub;

[0023] 2. The utility model arranges impellers on the pinions. When the multiple pinions rotate, the impellers on them rotate together, dissipating heat from the hub body, thereby improving the heat dissipation performance of the motor hub.

[0024] 3. The utility model sets a connecting rod so that multiple small gears can rotate around the central axis, so that the impeller can dissipate heat at an irregular point, thereby increasing the heat dissipation area of ​​the impeller to the hub body and improving the heat dissipation performance of the motor hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of the heat dissipation structure of an embodiment of the present application.

[0027] Explanation of the accompanying drawings: 1. Hub body; 11. Center axis; 12. Dust cover; 13. Reflective strip; 2. Heat dissipation mechanism; 21. Rotating ring; 22. Heat sink; 23. Driving part; 231. Inner ring gear; 232. Outer ring gear; 233. Pinion; 24. Impeller; 25. Connecting rod; 251. Air flow hole. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-2 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0029] The embodiments of the present application disclose a heat dissipating motor hub.

[0030] Reference Figure 1 and Figure 2 The heat dissipation motor hub of this embodiment includes a hub body 1 and a central shaft 11. The hub body 1 is rotatably connected to the central shaft 11 along the centerline direction of the central shaft 11. The hub body 1 also includes a heat dissipation mechanism 2 for dissipating heat from the hub body 1. The heat dissipation mechanism 2 includes a rotating ring 21, a plurality of heat dissipation fins 22, and a driving member 23. The rotating ring 21 is rotatably connected to the central shaft 11 along the axial direction of the central shaft 11. The plurality of heat dissipation fins 22 are evenly arranged on the rotating ring 21 along the circumferential side surface of the rotating ring 21. The driving member 23 is used to drive the rotating ring 21 to rotate. The rotating ring 21 is driven by the driving member 23 to rotate, causing the plurality of heat dissipation fins 22 to rotate together with the rotating ring 21, dissipating heat from the hub body 1, thereby improving the heat dissipation performance of the motor hub.

[0031] Reference Figure 1 and Figure 2 The driving member 23 includes an inner ring gear 231, an outer ring gear 232, and a plurality of pinion gears 233. The inner ring gear 231 is coaxial and fixedly connected to the outside of the hub body 1. The outer ring gear 232 is also fixedly connected to the side of the plurality of heat sinks 22 away from the rotating ring 21. The plurality of pinion gears 233 are respectively connected to the hub body 1 in the direction of rotation of the hub body 1. The plurality of pinion gears 233 are respectively meshed with the inner ring gear 231 and the outer ring gear 232. The rotation of the hub body 1 drives the inner ring gear 231 to rotate together. The plurality of pinion gears 233 are respectively meshed with the inner ring gear 231 and the outer ring gear 232, so that the plurality of pinion gears 233 and the inner ring gear 231 rotate together, thereby rotating the plurality of heat sinks 22 fixedly connected to the inner ring gear 231, dissipating heat from the hub body 1, thereby improving the heat dissipation performance of the motor hub.

[0032] Reference Figure 1 and Figure 2 , multiple small gears 233 are coaxially and fixedly connected to the impeller 24. When the multiple small gears 233 rotate, the impeller 24 above them is driven to rotate together, dissipating heat from the hub body 1 to improve the heat dissipation performance of the motor hub.

[0033] Reference Figure 1 and Figure 2 Multiple connecting rods 25 are connected to the rotating ring 21, rotatably connected along the rotating ring's rotational direction. Multiple pinions 233 correspond to the connecting rods 25, and each of the pinions 233 is rotatably connected to the connecting rods 25 along the rotational direction of the hub body 1. The pinions 233 can rotate about the central axis 11, allowing the impeller 24 to dissipate heat at various locations. This increases the area of ​​heat dissipation from the impeller 24 to the hub body 1, thereby improving the heat dissipation performance of the hub body 1. Airflow holes 251 are each formed in the connecting rods 25. When the connecting rods 25 rotate, the airflow holes 251 on the connecting rods 25 direct airflow toward the hub body 1, achieving the purpose of heat dissipation.

[0034] Reference Figure 1 and Figure 2 A dust cover 12 is fixedly attached to the upper portion of the hub body 1. Multiple heat sinks 22 are located within and covered by the dust cover 12, reducing the possibility of dust accumulation on the heat sinks 22 and causing heat dissipation difficulties. A reflective strip 13 is fixedly attached to the outer side of the hub body 1, facilitating visibility of the electric vehicle equipped with the motor hub, improving safety during nighttime driving.

[0035] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A heat dissipation motor hub, comprising a hub body (1) and a central shaft (11), wherein the hub body (1) is rotatably connected to the central shaft (11) along the midline direction of the central shaft (11), and is characterized in that: The invention also includes a heat dissipation mechanism (2), which is used to dissipate heat from the hub body (1). The heat dissipation mechanism (2) includes a rotating ring (21), a plurality of heat dissipation fins (22) and a driving member (23). The rotating ring (21) is connected to the central shaft (11) in a rotatable manner along the axial direction of the central shaft (11). The plurality of heat dissipation fins (22) are evenly arranged on the rotating ring (21) along the circumferential side surface of the rotating ring (21). The driving member (23) is used to drive the rotating ring (21) to rotate.

2. The heat dissipating motor hub according to claim 1, characterized in that: The driving member (23) comprises an inner gear ring (231), an outer gear ring (232) and a plurality of pinions (233); the inner gear ring (231) is coaxially and fixedly connected to the outside of the hub body (1); the outer gear ring (232) is simultaneously fixedly connected to a side of the plurality of heat sinks (22) away from the rotating ring (21); the plurality of pinions (233) are respectively connected to the hub body (1) in a rotational direction of the hub body (1); and the plurality of pinions (233) are respectively meshed with the inner gear ring (231) and the outer gear ring (232).

3. The heat dissipating motor hub according to claim 2, characterized in that: The plurality of small gears (233) are coaxially and fixedly connected to the impeller (24).

4. The heat dissipating motor hub according to claim 3, characterized in that: The rotating ring (21) is provided with a plurality of connecting rods (25), the plurality of pinions (233) correspond to the plurality of connecting rods (25), and the plurality of pinions (233) are respectively connected to the connecting rods (25) in a rotational direction of the hub body (1).

5. The heat dissipating motor hub according to claim 4, characterized in that: Air flow holes (251) are respectively provided on the plurality of connecting rods (25).

6. The heat dissipating motor hub according to claim 1, characterized in that: A dust cover (12) is provided on the hub body (1), and a plurality of heat sinks (22) are located inside the dust cover (12).

7. The heat dissipating motor hub according to claim 1, characterized in that: A reflective strip (13) is provided on the outer side of the hub body (1).

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