TW202026196A - Driving mechanism - Google Patents

Abstract

A driving mechanism is provided, and the driving mechanism connects a frame and a driving wheel by two ends thereof. The driving mechanism comprises a motor housing, a motor assembly and a driving controller. The motor housing supports the frame and defines an inner space. The motor assembly connected with the motor housing detachably and disposed in the inner space, wherein the motor assembly drives the driving wheel. The driving controller connected with the motor housing detachably and disposed in the inner space, and the driving controller electrically connected with the motor assembly.

Description

Drive mechanism

This case is about a driving mechanism, especially a driving mechanism of an electric locomotive.

In the current locomotive structure, there are more rocker arms installed between the frame and the driving wheels. If it is an electric locomotive application, the motor and driver are separately installed on both sides of the rocker arm, and the battery outputs power, and the driver is wired to the motor terminal for actuation and signal return control. However, in order to install the motor and the driver on the rocker arm, an additional fixed interface and structure need to be provided, resulting in a larger volume, higher assembly difficulty, and longer time-consuming. In addition, since the wires (such as power wires and signal wires) between the motor and the driver are exposed, the air tightness and water resistance are poor, which also increases the risk of bending and damage to the wires.

Therefore, how to develop a driving mechanism that can improve the above-mentioned conventional technology is actually an urgent need.

The purpose of this case is to provide a driving mechanism which is assembled between the frame and the driving wheels, which can replace the traditional rocker arm as an auxiliary support structure of the frame, and has an unsprung weight compared to the existing locomotive with a rocker arm. Smaller, can improve handling. In addition, the motor components and drivers are contained in the internal space of the motor housing, which can improve air tightness and waterproofness, greatly shorten the length of the wire between the motor components and the driver, and save assembly man-hours and unnecessary waterproof interfaces With joints. Furthermore, a plurality of wires connected between the motor assembly and the driver are all contained in the internal space of the motor housing, which can effectively reduce the risk of damage such as exposed bending of the wire body, thereby saving wire maintenance costs and improving electronic reliability degree.

In order to achieve the above-mentioned objective, the present application provides a driving mechanism. The two ends of the driving mechanism are respectively assembled to the frame and the driving wheels. The driving mechanism includes a motor housing, a motor assembly and a driver. The motor housing supports the frame and defines an internal space. The motor assembly is detachably assembled to the motor housing and is located in the inner space, wherein the motor assembly drives the driving wheel. The driver is detachably assembled to the motor housing, is located in the internal space, and is electrically connected to the motor assembly.

Some typical embodiments embodying the features and advantages of this case will be described in detail in the following description. It should be understood that this case can have various changes in different aspects, all of which do not depart from the scope of this case, and the descriptions and illustrations therein are essentially for illustrative purposes, rather than being constructed to limit the case.

Figure 1 is a partial schematic diagram showing the driving mechanism of the present case assembling it to a locomotive. Figures 2A and 2B are the three-dimensional schematic diagrams of the driving mechanism of the preferred embodiment of the present project from different perspectives. Figures 3A and 3B are the secondA The schematic diagram of the exploded structure of the driving mechanism shown in the figure from different perspectives. As shown in Figures 1, 2A, 2B, 3A and 3B, the two ends of the driving mechanism 1 in this case are respectively assembled to the frame 21 and the driving wheels 22 of the locomotive 2, and the driving mechanism 1 is structured on the driving locomotive 2 and supports auxiliary Frame 21. As shown in Figure 1, there are still common designs of shock-absorbing cylinders and springs as the main support structure, but the aforementioned shock-absorbing cylinders and springs are not the main features of this case, so we will not repeat them. The driving mechanism 1 includes a motor housing 11, a motor assembly 12 and a driver 13. It should be noted that the driving mechanism 1 disclosed in this embodiment can also be used to drive a bicycle using an electric motor, but the invention is not limited to this.

The motor housing 11 defines and forms an internal space 111, and preferably but is not limited to include at least one upper cover 112 and at least a lower cover 113. The upper cover 112 and the lower cover 113 are detachably assembled with each other to define and form the internal space 111, The lower cover 113 is located between the upper cover 112 and the frame 21, or the lower cover 113 is located between the upper cover 112 and the driving wheels 22, but the present invention is not limited to this.

The motor assembly 12 is detachably assembled to the motor housing 11 and is located in the internal space 111, and is configured to drive the driving wheels 22. The motor assembly 12 preferably but is not limited to include a rotor 121 and a stator 122. The rotor 121 is combined with the stator 122, and can rotate relative to the stator 122. In some embodiments, the motor assembly 12 is detachably assembled to the corresponding lower cover 113.

The driver 13 is detachably assembled to the motor housing 11 and is located in the internal space 111, and is electrically connected to the motor assembly 12 by a plurality of wires (not shown in the figure). The motor assembly 12 and the driver 13 are better but not It is limited to being electrically connected to each other via a terminal block or terminal block 14. In accordance with the above, a plurality of wires (such as power cords and signal wires) connected to the motor assembly 12, the driver 13 and the two are all accommodated in the internal space 111, so that the wires are protected from moisture or dirt. , Improve electronic reliability.

In some embodiments, the driving mechanism 1 further includes a deceleration mechanism 15. The deceleration mechanism 15 can be assembled with the motor assembly 12 and the drive wheel 22, or integrated with the drive wheel 22 and assembled with the motor assembly 12 so that the motor assembly 12 The driving wheels 22 of the locomotive 2 are driven via the speed reduction mechanism 15. The driving wheel 22 referred to in the industry refers to a wheel capable of driving a vehicle, and the transmission and output of motor power, usually a rear wheel, but the present invention is not limited thereto.

Since the driving mechanism 1 is assembled to the frame 21 and the driving wheels 22, it can replace the rocker arm of a traditional locomotive as an auxiliary support structure of the frame. Compared with the existing locomotive with a rocker arm, this case omits some components. Therefore, the unsprung weight of the locomotive 2 driven by the driving mechanism 1 is relatively small, which can improve the handling. In addition, the motor assembly 12, the driver 13 and the connecting wire are all contained in the internal space 111 of the motor housing 11, which is not an exposed structure like the traditional design, so the air tightness and waterproofness can be improved to ensure system stability. Moreover, the length of the wire between the motor assembly 12 and the driver 13 is greatly shortened due to the storage of the internal space 111, which saves assembly man-hours and reduces unnecessary wire usage, waterproof interface and connector costs. In conclusion, the plurality of wires connected to the motor assembly 12, the driver 13 and the two are all contained in the internal space 111, which effectively reduces the risk of damage such as bending and bending of the wires, thereby saving wire maintenance costs and improving electronics Reliability.

In addition, the actual configuration of the driver 13 connected to the motor housing 11 is not limited. In some embodiments, the driver 13 is detachably assembled to the upper cover 112, as shown in FIG. 3A. In other embodiments, the driver 13 is detachably assembled to the lower cover 113, as shown in FIG. 3B. Furthermore, the motor assembly 12 can also be integrated into the upper cover 112 or the lower cover 113 of the motor housing 11 as required, and the installation and assembly interfaces and structures in the upper cover 112 or the lower cover 113 of the motor housing 11 are correspondingly designed so that the structure outlines Anastomosis, thereby increasing the space utilization rate and reducing the assembly complexity, but the present invention is not limited to this.

Furthermore, the numbers of the upper cover 112 and the lower cover 113 of the motor housing 11 are not limited, and can be adjusted according to actual needs. For example, as shown in FIG. 3A, the motor housing 11 includes an upper cover 112 and a lower cover 113, and the motor assembly 12 and the driver 13 share the lower cover. In the detailed structure, the aforementioned upper cover 112 includes a first cover 112a and a second cover 112b. The first cover 112a of the upper cover 112 is structured to cover the motor assembly 12, and the second cover 112b of the upper cover 112 is structured. It covers the driver 13, but the invention is not limited to this. However, in some embodiments, the motor assembly 12 and the driver 13 can also be shared or assembled on the same cover.

In other embodiments, the second cover 112b of the upper cover 112 may further include a movable cover 112c, and the movable cover 112c corresponds to the position of the terminal block or wiring board 14 and/or at least a part of the driver 13, when When the wire body and/or the driver 13 need to be repaired or replaced, there is no need to completely remove the second cover 112b of the upper cover 112, only the movable cover 112c needs to be removed, which is convenient.

In order to facilitate the heat dissipation of the driving mechanism 1, a heat dissipation structure or a heat dissipation element may be correspondingly provided. In some embodiments, the motor housing 11 includes at least one set of heat dissipation fins 114, and the heat dissipation fins 114 are preferably, but not limited to, integrated into the upper cover 112 and/or the lower cover 113 of the motor housing 11. In some embodiments, the driving mechanism 1 further includes a heat dissipation plate 16. The heat dissipation plate 16 is preferably, but not limited to, located in the inner space 111 of the motor housing 11 and is connected or attached to the driver 13 for the driver 13 to directly perform For heat dissipation, the heat dissipation plate 16 and the driver 13 can be modularized, so that the heat dissipation plate 16 and the driver 13 form a structure and are detachably assembled to the upper cover 112 or the lower cover 113 of the motor housing 11.

In some embodiments, the driving mechanism 1 further includes a first mounting hole 17 and a second mounting hole 18. The first mounting hole 17 is framed on the frame 21 of the locomotive 2 where the driving mechanism 1 is assembled. The hole 18 is configured to connect the driving mechanism 1 to the driving wheel 22 of the locomotive 2, and to connect the deceleration mechanism 15 to the motor module 12. In some embodiments, the motor housing 11 further has a wire hole 115. The wire hole 115 communicates with the inner space 111 of the motor housing 11 and is constructed on the wire supply body to pass through, for example, for connecting to the driver 13 and the motor assembly. The thread between 15 is threaded, but the present invention is not limited to this.

In summary, the present application provides a driving mechanism which is assembled between the frame and the driving wheels, which can replace the traditional rocker arm as an auxiliary support structure of the frame, and is compared with the existing locomotives with rocker arms. Lower weight is small, which can improve handling. In addition, the motor components, drivers and connecting wires are all contained in the internal space of the motor housing, which can improve air tightness and water resistance to ensure system stability. The internal space also greatly shortens the motor components and drivers. The length and amount of the cable between the two can save assembly man-hours and reduce unnecessary waterproof interface and joint costs. In addition, the plurality of wires connected to the motor assembly, the driver and the two are contained in the internal space of the motor housing, which can effectively reduce the risk of damage to the wire body from being exposed to moisture and dirt, or being bent. , Thereby saving the maintenance cost of the line body and improving the reliability of the electronics. Furthermore, the driving mechanism can integrate the motor assembly and the driver on the motor housing, thereby increasing space utilization and reducing assembly complexity. Furthermore, the driving mechanism can be provided with heat dissipation fins on the motor housing, or a heat dissipation plate in the internal space, thereby improving heat dissipation efficiency.

It should be noted that the above is only a preferred embodiment for explaining this case, and this case is not limited to the described embodiment. The scope of this case is determined by the scope of the patent application attached. And this case can be modified in many ways by those who are familiar with this technology, but none of them deviates from the protection of the patent application.

1: driving mechanism 11: motor housing 111: internal space 112: upper cover 112a: first cover 112b: second cover 112c: movable cover 113: lower cover 114: heat sink 115: wire hole 12: motor assembly 121: Rotor 122: Stator 13: Drive 14: Wiring board 15: Deceleration mechanism 16: Heat sink 17: First mounting hole 18: Second mounting hole 2: Locomotive 21: Frame 22: Drive wheel

Figure 1 is a partial schematic diagram showing that the driving mechanism of this case is assembled to the locomotive.

Fig. 2A is a schematic diagram of the three-dimensional structure of the driving mechanism of the preferred embodiment of the present invention.

FIG. 2B is a schematic diagram of the three-dimensional structure of the driving mechanism shown in FIG. 2A from another perspective.

Figure 3A is an exploded structure diagram of the driving mechanism shown in Figure 2A.

Figure 3B is an exploded structural diagram of the driving mechanism shown in Figure 2A from another perspective.

1: drive mechanism

11: Motor housing

15: Deceleration mechanism

17: The first mounting hole

2: locomotive

21: Frame

22: drive wheel

Claims (20)

A drive mechanism. The two ends of the drive mechanism are connected to a frame and a drive wheel respectively. The drive mechanism includes: a motor housing that supports the frame and defines an internal space; a motor assembly, detachable Connected to the motor housing and located in the internal space, where the motor assembly drives the driving wheel; and a driver, detachably assembled to the motor housing, located in the internal space, and electrically connected to the motor assembly . For example, the driving mechanism described in item 1 of the scope of patent application further includes: a deceleration mechanism assembled between the motor assembly and the driving wheel. The driving mechanism described in item 2 of the scope of patent application, wherein the speed reduction mechanism is integrated with the driving wheel and assembled with the motor assembly. For the driving mechanism described in item 1 of the scope of patent application, the motor housing includes an upper cover and a lower cover, the upper cover and the lower cover are detachably assembled with each other to define the internal space, wherein the lower cover is located at the Between the upper cover and the drive wheel. According to the driving mechanism described in item 4 of the scope of patent application, the motor assembly is integrated with the upper cover. For the driving mechanism described in item 4 of the scope of patent application, the driver is detachably assembled to the upper cover. The driving mechanism described in item 4 of the scope of patent application, wherein the upper cover includes a first cover plate and a second cover plate, wherein the motor assembly corresponds to the first cover plate, and the driver corresponds to the second cover board. In the driving mechanism described in item 7 of the scope of patent application, the second cover plate of the upper cover further includes a detachable movable cover plate. In the driving mechanism described in item 4 of the scope of patent application, the motor assembly is integrated with the lower cover. For the driving mechanism described in item 4 of the scope of patent application, the driver is detachably assembled to the lower cover. For example, the driving mechanism described in item 4 of the scope of patent application further includes: a heat dissipation plate located in the internal space and connected to the driver. In the driving mechanism described in item 11 of the scope of patent application, the heat dissipation plate and the driver are detachably assembled to the upper cover. In the driving mechanism described in item 11 of the scope of patent application, the heat dissipation plate and the driver are detachably assembled to the lower cover. According to the driving mechanism described in claim 4, the motor housing further includes a heat dissipation fin. In the driving mechanism described in item 14 of the scope of patent application, the heat dissipation fins are integrated with the upper cover. In the driving mechanism described in item 14 of the scope of patent application, the heat dissipation fin is integrated with the lower cover. In the driving mechanism described in item 1 of the scope of patent application, the motor assembly and the driver are electrically connected through a plurality of wires, and the wires are all contained in the internal space. The driving mechanism described in item 1 of the scope of patent application, wherein the motor assembly and the driver are electrically connected to each other via a terminal block or a wiring board. The driving mechanism described in item 1 of the scope of patent application, wherein the motor assembly includes a stator and a rotor. The driving mechanism described in item 1 of the scope of patent application is used to drive a locomotive or a bicycle.

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