Waterproof two-wheeled vehicle high-speed motor with active heat dissipation function

Abstract

The utility model discloses a waterproof two-wheeled vehicle high-speed motor with an active heat dissipation function, which is an outer rotor motor and is characterized in that a rotor is provided with a plurality of heat dissipation holes, the heat dissipation holes are provided with automatic opening and closing assemblies supported by acting force, and when the rotor is in a static state, the automatic opening and closing assemblies block the heat dissipation holes under the action of the acting force to form sealing. In the rotating state, the automatic opening and closing assembly is separated from the heat dissipation holes under the action of centrifugal force to relieve sealing. The heat dissipation holes are formed in the rotor, opening and closing of the heat dissipation holes are automatically controlled through the spring and the automatic opening and closing assembly, the centrifugal force of the automatic opening and closing assembly is smaller than the elastic force of the spring when the motor is static or the vehicle speed is low, and the automatic opening and closing assembly blocks the heat dissipation holes to form sealing to achieve the waterproof purpose; when the vehicle speed is high, the centrifugal force of the automatic opening and closing assembly is larger than the elastic force of the spring, and the automatic opening and closing assembly relieves blocking of the heat dissipation holes to achieve the heat dissipation purpose.

Description

Technical Field

[0001] This utility model relates to hub motors, and more particularly to high-speed motors for two-wheeled vehicles that have active heat dissipation and are waterproof. Background Technology

[0002] In-wheel motors integrate power, transmission, and braking systems within the wheel hub, greatly simplifying the mechanical components of electric vehicles. Compared to traditional electric vehicles, in-wheel motors eliminate components such as gearboxes, drive shafts, and differentials, reducing weight and saving space, thus making them widely used in two-wheeled vehicles.

[0003] Patent application number CN202223187877.5 discloses a hybrid heat dissipation rotor hub motor, whose housing has heat dissipation holes at the end. In addition, the external rotor motor disclosed at https: / / haokan.baidu.com / v?pd=wisenatural&vid=8771237222676659325 also has heat dissipation holes at the end for heat dissipation. However, in actual use, a certain degree of waterproofing is required, such as when the hub motor is used in a two-wheeled vehicle. Therefore, this type of open heat dissipation structure cannot be applied to scenarios that require a certain degree of waterproofing. Utility Model Content

[0004] In view of the shortcomings of existing hub motors in that they cannot dynamically adjust heat dissipation and waterproofing to adapt to various application scenarios, this utility model provides a high-speed motor for two-wheeled vehicles with active heat dissipation and waterproofing.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] The high-speed motor for two-wheeled vehicles is an external rotor motor with several heat dissipation holes on the rotor. Each heat dissipation hole is equipped with an automatic opening and closing component supported by a force. When the rotor is stationary, the automatic opening and closing component seals the heat dissipation holes under the action of the force. When the rotor is rotating, the automatic opening and closing component disengages from the heat dissipation holes under the action of centrifugal force, thus releasing the seal.

[0007] Preferably, the heat dissipation holes are set on the hub cover and at least one heat dissipation hole is set. The automatic opening and closing components are set one-to-one with the heat dissipation holes, and the extension direction of the heat dissipation holes is consistent with the radial direction of the outer rotor motor.

[0008] Preferably, the automatic opening and closing assembly includes a slider that is slidably disposed in the heat dissipation hole and a spring sleeved on the slider. The inner end of the slider is provided with a backing structure for the spring to abut against, the outer end of the spring abuts against the inner side wall of the rotor, the middle width of the slider is smaller than the diameter of the heat dissipation hole, and the outer end of the slider is provided with a counterweight.

[0009] Preferably, the automatic opening and closing assembly includes a sliding member slidably disposed in the heat dissipation hole and an elastic member disposed at the inner end of the sliding member and connected to the rotor to apply an inward force to the sliding member. The width of the middle part of the sliding member is smaller than the diameter of the heat dissipation hole, and a counterweight is provided at the outer end of the sliding member.

[0010] Preferably, a sealing ring is fitted on the sliding part at the inner end of the counterweight block to form a seal against the outer periphery of the heat dissipation hole.

[0011] Preferably, the outer end of the heat dissipation hole is divided into a tapered hole with a gradually increasing diameter from the inside to the outside, and the sliding part on the inner side of the counterweight is provided with an annular platform that extends into the tapered hole, and the sealing ring is sleeved on the side wall of the annular platform.

[0012] As a preferred option, the inner end of the annular truncated ring is provided with a guide surface.

[0013] Preferably, the abutment structure is a columnar or cup-shaped body that can be detachably mounted on the sliding member, with the inner end of the spring abutting against the outer end of the columnar body or extending into the opening of the cup-shaped body.

[0014] Preferably, the rotor is provided with a retaining groove with a cross-section greater than 1 / 2 circle, and a cylindrical or cup-shaped body extends into the cylindrical groove and abuts against the cylindrical groove.

[0015] Preferably, the automatic opening and closing assembly includes a mounting bracket disposed on the outside of the rotor, a spring disposed on the mounting bracket, and a plug slidably disposed on the mounting bracket. One end of the spring abuts against the mounting bracket, and the other end of the spring abuts against the plug. When the rotor is stationary, the plug blocks the heat dissipation hole under the action of the spring force. When the rotor rotates, the plug moves outward under the action of centrifugal force and opens the heat dissipation hole.

[0016] Compared with the prior art, the advantages of this utility model are as follows: This application sets heat dissipation holes on the rotor and automatically controls the opening and closing of the heat dissipation holes by means of springs and automatic opening and closing components. When the vehicle is stationary or at low speed, the centrifugal force of the automatic opening and closing components is less than the spring force, and the automatic opening and closing components seal the heat dissipation holes to form a seal and achieve the purpose of waterproofing. When the vehicle speed is higher, the centrifugal force of the automatic opening and closing components is greater than the spring force, and the automatic opening and closing components release the seal on the heat dissipation holes to achieve the purpose of heat dissipation. Attached Figure Description

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0018] Figure 1This is the front view of Example 1;

[0019] Figure 2 This is a side view of Example 1;

[0020] Figure 3 This is a cross-sectional view of AA.

[0021] Figure 4 and Figure 5 This is an exploded view of Example 1;

[0022] Figure 6 This is a perspective view of the hubcap in Example 1;

[0023] Figure 7 This is an exploded view of the hubcap in Example 1;

[0024] Figure 8 for Figure 3 Enlarged view of point A in the middle;

[0025] In the diagram: 10, external rotor motor; 101, rotor; 1011, hub cover; 10111, heat dissipation hole; 10112, retaining groove; 102, stator; 30, automatic opening and closing assembly; 301, sliding component; 302, columnar or cup-shaped body; 303, counterweight; 304, spring; 305, sealing ring. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described in detail below 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 the present invention.

[0027] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0028] The following embodiments mainly describe the title of a high-speed motor for two-wheeled vehicles that has active heat dissipation and is waterproof, as follows:

[0029] Example 1:

[0030] High-speed motors for two-wheeled vehicles that feature active cooling and are waterproof, such as Figure 1-8 As shown, it is an external rotor motor 10. The rotor 101 is provided with several heat dissipation holes 10111. An automatic opening and closing component 30 supported by elastic force is provided at the heat dissipation holes 10111. When the rotor 101 is stationary, the automatic opening and closing component 30 seals the heat dissipation holes 10111 under the action of elastic force to form a seal. When rotating, the automatic opening and closing component 30 disengages from the heat dissipation holes 10111 under the action of centrifugal force to release the seal.

[0031] like Figure 7 As shown, three heat dissipation holes 10111 are provided and evenly distributed in a ring array, and their extension direction is consistent with the radial direction of the outer rotor motor 10. The heat dissipation holes 10111 are provided on the hub cover 1011, and the hub cover 1011 rotates with the rotor 101.

[0032] like Figure 7 and 8 As shown, the automatic opening and closing assembly 30 includes a sliding member 301 slidably disposed in the heat dissipation hole 10111 and a spring 304 sleeved on the sliding member 301. The inner end of the sliding member 301 is provided with a backing structure for the spring 304 to abut against. The outer end of the spring 304 abuts against the inner side wall of the rotor 101. The width of the middle part of the sliding member 301 is smaller than the diameter of the heat dissipation hole 10111. The outer end of the sliding member 301 is provided with a counterweight 303.

[0033] like Figure 7 and 8 As shown, a sealing ring 305 is fitted onto the sliding member 301 at the inner end of the counterweight 303, which abuts against the outer periphery of the heat dissipation hole 10111 to form a seal. The sealing ring 305 is used to form a seal around the heat dissipation hole 10111, thus serving a waterproof function.

[0034] like Figure 7 and 8 As shown, the outer end of the heat dissipation hole 10111 is divided into a tapered hole with a gradually increasing diameter from the inside to the outside. The sliding member 301 on the inner side of the counterweight 303 is provided with an annular platform that extends into the tapered hole, and the sealing ring 305 is sleeved on the side wall of the annular platform. The tapered structure has a guiding effect on the sliding rod's inward movement, which can ensure that the sealing ring 305 is tightly fitted with the wall surface of the tapered structure of the heat dissipation hole 10111 to form a seal.

[0035] like Figure 8 As shown, the inner end of the annular platform has a guide surface, and the outer end of the annular platform has an arc-shaped groove, in which the sealing ring 305 is disposed. During sealing, the guide surface further provides a guiding effect, keeping the sealing ring 305 in the center position.

[0036] like Figure 7 and 8 As shown, the abutment structure is a columnar or cup-shaped body 302 detachably mounted on the sliding member 301. The inner end of the spring 304 abuts against the outer end of the columnar body or extends into the opening of the cup-shaped body 302. The spring 304 abuts against the columnar or cup-shaped body 302 and applies an inward elastic force to the sliding member 301.

[0037] like Figure 7As shown, the rotor 101 is provided with a retaining groove 10112 with a cross-section larger than 1 / 2 circle. A cylindrical or cup-shaped body 302 extends into the cylindrical groove and abuts against it. This design can keep the sliding member 301 located in the middle of the heat dissipation hole 10111.

[0038] Example 2:

[0039] The high-speed motor for two-wheeled vehicles is an external rotor motor with several heat dissipation holes on the rotor. Each heat dissipation hole is equipped with an automatic opening and closing component supported by a force. When the rotor is stationary, the automatic opening and closing component seals the heat dissipation holes under the action of the force. When the rotor is rotating, the automatic opening and closing component disengages from the heat dissipation holes under the action of centrifugal force, thus releasing the seal.

[0040] Preferably, the heat dissipation holes are set on the hub cover and at least one heat dissipation hole is set. The automatic opening and closing components are set one-to-one with the heat dissipation holes, and the extension direction of the heat dissipation holes is consistent with the radial direction of the outer rotor motor.

[0041] Preferably, the automatic opening and closing assembly includes a sliding member slidably disposed within a heat dissipation hole and an elastic member disposed at the inner end of the sliding member and connected to the rotor to apply an inward force to the sliding member. The width of the middle part of the sliding member is smaller than the diameter of the heat dissipation hole, and a counterweight is provided at the outer end of the sliding member. In this solution, the elastic member applies an inward force to the sliding member, and the elastic member can be selected from springs or the like to apply an inward pulling force to the sliding member.

[0042] Preferably, a sealing ring is fitted onto the sliding member at the inner end of the counterweight block, forming a seal against the outer periphery of the heat dissipation hole. In this design, the counterweight block provides counterweight, facilitating the outward sliding of the sliding rod as it rotates.

[0043] Preferably, the outer end of the heat dissipation hole is divided into a tapered hole with a gradually increasing diameter from the inside to the outside. The sliding component on the inner side of the counterweight is provided with an annular platform that extends into the tapered hole, and the sealing ring is fitted onto the side wall of the annular platform. The tapered structure guides the sliding rod to slide inward, ensuring that the sealing ring and the wall surface of the tapered structure of the heat dissipation hole are tightly fitted to form a seal.

[0044] Preferably, the inner end of the annular platform has a guide surface, and the outer end of the annular platform has an arc-shaped groove, within which the sealing ring is placed. During sealing, the guide surface further provides guidance to keep the sealing ring in the center position.

[0045] Example 3:

[0046] The high-speed motor for two-wheeled vehicles is an external rotor motor with several heat dissipation holes on the rotor. Each heat dissipation hole is equipped with an automatic opening and closing component supported by elasticity. When the rotor is stationary, the automatic opening and closing component seals the heat dissipation holes under the action of elasticity. When the rotor is rotating, the automatic opening and closing component disengages from the heat dissipation holes under the action of centrifugal force, thus releasing the seal.

[0047] Preferably, three heat dissipation holes are provided in a circular array and their extension direction is consistent with the radial direction of the outer rotor motor. The heat dissipation holes are provided on the hub cover, and the hub cover rotates with the rotor.

[0048] Preferably, the automatic opening and closing assembly includes a mounting bracket disposed on the outside of the rotor, a spring disposed on the mounting bracket, and a plug slidably disposed on the mounting bracket. One end of the spring abuts against the mounting bracket, and the other end of the spring abuts against the plug. When the rotor is stationary, the plug blocks the heat dissipation hole under the action of the spring force. When the rotor rotates, the plug moves outward under the action of centrifugal force and opens the heat dissipation hole.

[0049] It should be noted that 102 is the stator. In Embodiment 2, the elastic force in Embodiment 1 is changed to tensile force and adapted to the structure. In Embodiment 3, the automatic opening and closing component is installed on the outside.

[0050] The title provided above provides a detailed description of the present utility model. Specific examples have been used to illustrate the principles and implementation methods of the present utility model. The description of the above embodiments is only for the purpose of helping to understand the present utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to the present utility model without departing from the principles of the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A high-speed motor for two-wheeled vehicle with active heat dissipation function and waterproof, which is an outer rotor motor, characterized in that, The rotor is provided with several heat dissipation holes, and an automatic opening and closing component supported by a force is provided at the heat dissipation holes. When the rotor is stationary, the automatic opening and closing component seals the heat dissipation holes under the action of the force. When the rotor is rotating, the automatic opening and closing component disengages from the heat dissipation holes and releases the seal under the action of centrifugal force.

2. The high-speed motor for two-wheeled vehicle with active heat dissipation function and waterproofing according to claim 1, characterized in that, The heat dissipation holes are set on the hub cover and there is at least one heat dissipation hole. The automatic opening and closing components are set one-to-one with the heat dissipation holes. The extension direction of the heat dissipation holes is consistent with the radial direction of the outer rotor motor.

3. The high-speed motor for two-wheeled vehicle with active heat dissipation function and waterproofing according to claim 1, characterized in that, The automatic opening and closing assembly includes a sliding member slidably disposed in the heat dissipation hole and a spring sleeved on the sliding member. The inner end of the sliding member is provided with a support structure for the spring to abut against, the outer end of the spring abuts against the inner side wall of the rotor, the middle width of the sliding member is smaller than the diameter of the heat dissipation hole, and the outer end of the sliding member is provided with a counterweight.

4. The high-speed motor for two-wheeled vehicles with active heat dissipation and waterproofing as described in claim 1, characterized in that, The automatic opening and closing assembly includes a sliding member slidably disposed in the heat dissipation hole and an elastic member disposed at the inner end of the sliding member and connected to the rotor to apply an inward force to the sliding member. The width of the middle part of the sliding member is smaller than the diameter of the heat dissipation hole, and a counterweight is provided at the outer end of the sliding member.

5. The high-speed motor for two-wheeled vehicle with active heat dissipation function and waterproofing according to claim 3 or 4, characterized in that, A sealing ring is fitted on the sliding part at the inner end of the counterweight block, which abuts against the outer periphery of the heat dissipation hole to form a seal.

6. The high-speed motor for two-wheeled vehicle with active heat dissipation function and waterproofing according to claim 5, characterized in that, The outer end of the heat dissipation hole is divided into a tapered hole with a gradually increasing diameter from the inside to the outside. The sliding part on the inner side of the counterweight is provided with an annular platform that extends into the tapered hole, and the sealing ring is fitted on the side wall of the annular platform.

7. The high-speed motor of the two-wheeled vehicle with active heat dissipation function and waterproofing according to claim 6, characterized in that, The inner end of the annular platform is provided with a guide surface, and the outer end of the annular platform is provided with an arc-shaped groove, in which the sealing ring is placed.

8. The high-speed motor for two-wheeled vehicle with active heat dissipation function and waterproofing according to claim 3, characterized in that, The abutment structure is a columnar or cup-shaped body that can be detachably mounted on the sliding member, with the inner end of the spring abutting against the outer end of the columnar body or extending into the opening of the cup-shaped body.

9. The high-speed motor for two-wheeled vehicle with active heat dissipation function and waterproofing according to claim 8, characterized in that, The rotor is provided with a retaining groove with a cross-section greater than 1 / 2 circle, and a cylindrical or cup-shaped body extends into the cylindrical groove and abuts against the cylindrical groove.

10. The high-speed motor for two-wheeled vehicle with active heat dissipation function and waterproofing according to claim 1 or 2, characterized in that, The automatic opening and closing assembly includes a mounting bracket disposed on the outside of the rotor, a spring disposed on the mounting bracket, and a plug slidably disposed on the mounting bracket. One end of the spring abuts against the mounting bracket, and the other end of the spring abuts against the plug. When the rotor is stationary, the plug seals the heat dissipation hole under the action of the spring force. When the rotor rotates, the plug moves outward under the action of centrifugal force and opens the heat dissipation hole.

Images