Multi-purpose box for highly integrated wheel core electric drive system and mounting structure thereof

Abstract

This utility model discloses a multi-purpose housing and its installation structure for a highly integrated wheel core electric drive system. The controller housing is integrated into the motor housing. The installation of the controller housing fully utilizes the space along the length of the fork, allowing for the installation of a large-sized controller within the controller chamber inside the housing. This not only improves the reliability and safety of the wheel core electric drive system but also eliminates the need for high-weather-resistant cables and glands, reducing costs and significantly lowering the risk of wiring aging. Furthermore, it eliminates the need for specialized waterproofing and dustproofing treatment of the wiring, further enhancing the reliability and safety of the wheel core electric drive system. Moreover, the almost completely exposed controller housing allows for effective heat dissipation, improving the controller's heat dissipation capacity and effectively preventing problems such as power transistor damage and reduced control efficiency.

Description

Technical Field

[0001] This utility model relates to the field of electric drive system technology, specifically to a multi-purpose housing and its installation structure for a highly integrated wheel core electric drive system. Background Technology

[0002] Please refer to Chinese Utility Model Patent Publication No. CN222157726U. The applicant of this application previously designed an electric two-wheeled wheel core interlaced compact stacked combination reduction drive electric drive system. Its housing assembly is a split assembly structure. Not only does it eliminate the need to disassemble the entire housing assembly when repairing and replacing parts, but it also allows for partial disassembly, improving the convenience of assembly and maintenance and reducing maintenance costs and time. Furthermore, each part of the housing assembly can be reliably locked with threaded fasteners, ensuring both the structural strength and reliability of the housing assembly and the convenience of disassembly and assembly.

[0003] However, due to structural design limitations, the wheel-core electric drive system described in the aforementioned Chinese utility model patent cannot integrate the controller into the system itself. This necessitates the use of dedicated space on the two-wheeled vehicle frame for controller installation, restricting frame design. Furthermore, the controller is often installed in the location of the motor in the yard, connected via cables and glands, resulting in higher costs. Some designs even place the controller in enclosed environments, where heat cannot be effectively dissipated, leading to potential damage to power transistors and reduced control efficiency.

[0004] Solving these problems is now a top priority. Utility Model Content

[0005] In view of this, the present invention provides a multi-purpose housing and its mounting structure for a highly integrated wheel core electric drive system.

[0006] The technical solution is as follows:

[0007] The first aspect of this application relates to a multi-purpose housing for a highly integrated wheel-core electric drive system, comprising a housing body, the housing body including a partition plate and a motor housing and a reducer housing respectively mounted on both sides of the partition plate by threaded fasteners, the motor housing and the partition plate enclosing a motor assembly chamber, the reducer housing and the partition plate enclosing a reducer assembly chamber, and a controller housing integrally formed on the circumferential sidewall of the motor housing extending radially outward, the interior of the controller housing forming a controller chamber.

[0008] The multi-purpose housing of the highly integrated wheel-core electric drive system effectively utilizes the space outside the circumferential sidewalls of the motor housing to integrate the controller housing onto the motor housing. This allows the controller to be installed in the controller chamber inside the controller housing, thus integrating the controller into the wheel-core electric drive system. This eliminates the need for dedicated controller installation space on the chassis, improving chassis design flexibility. Furthermore, the communication lines between the controller and the wheel-core electric drive system are concealed within the housing body, eliminating the need for high-weather-resistant cables and glands. This reduces costs and significantly lowers the risk of wiring aging. It also eliminates the need for specialized waterproofing and dustproofing treatment for the wiring, improving the stability, reliability, and safety of the wheel-core electric drive system. In addition, the controller housing is almost completely exposed, allowing for effective heat dissipation, improving the controller's heat dissipation capacity and effectively preventing problems such as power transistor damage and reduced control efficiency.

[0009] In some embodiments, the motor housing includes a motor housing body mounted on the side of the partition plate away from the reducer housing by threaded fasteners and a motor housing end cover mounted on the end of the motor housing body away from the partition plate by threaded fasteners, wherein the controller housing is integrally formed on the circumferential sidewall of the motor housing end cover.

[0010] In some embodiments, the motor housing end cover includes an end cover base mounted on the end of the motor housing body away from the partition plate and an end cover body covering the end cover base on the side away from the motor housing body. The end cover base and the end cover body are mounted on the motor housing body by threaded fasteners. The controller housing is composed of a first controller housing cover and a second controller housing cover that enclose and form a controller chamber. The first controller housing cover is integrally formed on the circumferential sidewall of the end cover base, and the second controller housing cover is integrally formed on the circumferential sidewall of the end cover body.

[0011] The second aspect of this application relates to an installation structure for the aforementioned multi-purpose housing, wherein a first support shaft extending away from the partition plate is fixedly installed on the motor housing, and a second support shaft extending away from the partition plate is fixedly installed on the reducer housing. The first and second support shafts are coaxially arranged and fixedly connected to the flat fork. A hub capable of rotating relative to the second support shaft is fitted on the second support shaft. The controller housing extends along the length of one of the flat fork arms and is fixedly installed on the inner side of the flat fork arm.

[0012] The above-mentioned multi-purpose enclosure installation structure not only possesses all the advantages of a multi-purpose enclosure, but also makes full use of the space along the length of the fork, thus enabling the installation of larger controllers. This further improves the stability, reliability, and safety of the wheel core electric drive system. At the same time, the fixed connection between the controller enclosure and the fork arm ensures the stability and reliability of the controller enclosure installation structure.

[0013] In some embodiments, a plurality of controller housing heat dissipation fins are provided on the outer surface of the controller housing.

[0014] In some implementations, the heat dissipation fins of each controller housing extend along the length of the flat fork arm.

[0015] In some embodiments, a plurality of heat dissipation fins are provided on the outer surface of the motor housing.

[0016] In some implementations, the heat dissipation fins of each motor housing extend along the length of the flat fork arm. Attached Figure Description

[0017] Figure 1 A structural schematic diagram of a multi-purpose enclosure from one perspective;

[0018] Figure 2 This is a structural schematic diagram of the multi-purpose enclosure from another perspective;

[0019] Figure 3 This is a cross-sectional view of the wheel-core electric drive system;

[0020] Figure 4 This is a schematic diagram of the wheel core electric drive system. Detailed Implementation

[0021] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0022] Example 1:

[0023] like Figures 1-3 As shown, a multi-purpose housing for a highly integrated wheel-core electric drive system mainly includes a housing body 1. The housing body 1 includes a partition plate 1a and a motor housing 1b and a reducer housing 1c, which are respectively installed on both sides of the partition plate 1a by threaded fasteners. Specifically, the motor housing 1b, the partition plate 1a and the reducer housing 1c are connected sequentially in the left-right direction to realize a split assembly structure of the housing body 1, which makes it easy to maintain the internal mechanism separately.

[0024] In this embodiment, the motor housing 1b and the partition plate 1a together form a motor assembly chamber. The core components of the motor (including the rotor, stator, motor shaft, etc.) are installed in the motor assembly chamber, ensuring reliable installation of the core components of the motor and a stable working environment.

[0025] Similarly, the reducer housing 1c and the partition plate 1a together form the reducer assembly chamber, and the reducer transmission mechanism is installed in the reducer assembly chamber, ensuring reliable installation of the reducer transmission mechanism and a stable working environment.

[0026] Most importantly, a controller housing 1d extending radially outward is integrally formed on the circumferential sidewall of the motor housing 1b, and the interior of the controller housing 1d forms a controller chamber. The controller housing 1d effectively utilizes the space outside the circumferential sidewall of the motor housing 1b, thereby enabling the controller to be installed in the controller chamber inside the controller housing 1d, and thus integrating the controller into the wheel core electric drive system. This not only eliminates the need for a dedicated controller installation space on the chassis, improving the flexibility of chassis design, but also conceals the communication lines between the controller and the wheel core electric drive system within the housing body 1, significantly reducing the risk of wiring aging. Furthermore, it eliminates the need for specialized waterproofing and dustproofing treatment of the wiring, improving the stability, reliability, and safety of the wheel core electric drive system.

[0027] Furthermore, the motor housing 1b includes a motor housing body 1b1 mounted on the side of the partition plate 1a away from the reducer housing 1c by threaded fasteners, and a motor housing end cover 1b2 mounted on the end of the motor housing body 1b1 away from the partition plate 1a by threaded fasteners. Therefore, the motor housing end cover 1b2 and the motor housing bodies 1b1 at both ends and the partition plate 1a together form a motor assembly chamber, ensuring convenient installation of the core components of the motor, while also facilitating disassembly and maintenance. The controller housing 1d is integrally formed on the circumferential sidewall of the motor housing end cover 1b2.

[0028] Furthermore, the motor housing end cover 1b2 includes an end cover base 1b21 installed on the end of the motor housing body 1b1 away from the partition plate 1a, and an end cover body 1b22 covering the end cover base 1b21 on the side away from the motor housing body 1b1. The end cover base 1b21 and the end cover body 1b22 are installed on the motor housing body 1b1 by threaded fasteners. The controller housing 1d is composed of a first controller housing cover 1d1 and a second controller housing cover 1d2 that enclose and form a controller chamber. The first controller housing cover 1d1 is integrally formed on the circumferential sidewall of the end cover base 1b21, and the second controller housing cover 1d2 is integrally formed on the circumferential sidewall of the end cover body 1b22. By designing the motor housing end cover 1b2 as two parts, the processing and forming of the first controller housing cover 1d1 and the second controller housing cover 1d2 are facilitated, and the controller is easily installed in the controller housing 1d, ensuring ease of assembly.

[0029] Furthermore, multiple motor cooling fins 1b11 distributed circumferentially are provided on the circumferential sidewall of the motor housing body 1b1 to improve the heat dissipation performance of the motor part, ensure the stable operation of the motor, and improve the structural strength of the motor housing.

[0030] Example 2:

[0031] Please see Figures 1-4 A multi-purpose enclosure mounting structure, mainly comprising a horizontal fork 4 and the multi-purpose enclosure of Embodiment 1.

[0032] A first support shaft 2 extending away from the partition plate 1a is fixedly mounted on the motor housing 1b, and a second support shaft 3 extending away from the partition plate 1a is fixedly mounted on the reducer housing 1c. The first support shaft 2 and the second support shaft 3 are coaxially arranged. The outer ends of the two fork arms 4a of the horizontal fork 4 are fixedly connected to the first support shaft 2 and the second support shaft 3, respectively. A hub 5, capable of rotating relative to the second support shaft 3, is fitted onto the second support shaft 3. This hub 5 is located between the two fork arms 4a of the horizontal fork 4. Therefore, the motor can drive the hub 5 to rotate relative to the second support shaft 3 through a reduction transmission mechanism.

[0033] The controller housing 1d extends along the length of one of the fork arms 4a of the fork 4, and is fixedly installed on the inner side of the fork arm 4a. Therefore, the installation of the controller housing 1d makes full use of the space along the length of the fork 4, allowing for the installation of a larger controller, further improving the stability, reliability, and safety of the wheel core electric drive system. Simultaneously, the fixed connection between the controller housing 1d and the fork arm 4a ensures the stability and reliability of the controller housing 1d installation structure.

[0034] Furthermore, at least one reinforcing connecting plate 4b is fixedly connected to one of the flat fork arms 4a adjacent to the controller housing 1d. Typically, the reinforcing connecting plate 4b is fixedly installed on the corresponding flat fork arm 4a using a welding process, which is simple, stable, and reliable. Each reinforcing connecting plate 4b has at least one bolt mounting hole 4b1. The controller housing 1d has an integrally formed bolt connecting seat 1d4 corresponding to each bolt mounting hole 4b1. Each reinforcing connecting plate 4b is locked to the corresponding bolt connecting seat 1d4 by threaded fasteners passing through the corresponding bolt mounting holes 4b1, thereby ensuring a reliable connection between the controller housing 1d and each reinforcing connecting plate 4b, and ensuring the stability and reliability of the controller housing 1d installation.

[0035] Furthermore, a flat fork arm 4a located away from the controller housing 1d is fixedly connected to the controller housing 1d via a reinforcing bracket 6, thereby further improving the stability and reliability of the controller housing 1d installation.

[0036] Furthermore, the reinforcing bracket 6 includes a connecting shaft mounting plate 6a fixedly mounted on a flat fork arm 4a away from the controller housing 1d, and two connecting shafts 6b fixedly mounted on the connecting shaft mounting plate 6a. At the same time, both connecting shafts 6b are fixedly connected to the controller housing 1d away from it, thereby further improving the stability and reliability of the controller housing 1d installation.

[0037] Specifically, two connecting shafts 6b are positioned opposite each other on both sides of a flat fork arm 4a away from the controller housing 1d. One end of each connecting shaft 6b is fixedly connected to the connecting shaft mounting plate 6a, and the other end of each connecting shaft 6b is fixedly connected to the connecting shaft mounting seat 1d5 formed on the controller housing 1d. This not only improves the stability and reliability of the controller housing 1d installation, but also significantly improves the structural strength of the flat fork 4.

[0038] Furthermore, several heat dissipation fins 1d3 are provided on the outer surface of the controller housing 1d, which can improve the heat dissipation performance of the controller and ensure the stable operation of the controller.

[0039] In this embodiment, the heat dissipation fins 1d3 of each controller housing extend along the length of the flat fork arm 4a, thereby improving the ability of airflow to carry away the heat on the heat dissipation fins 1d3 of each controller housing during the two-wheeled vehicle's operation, and improving the heat dissipation performance of the controller.

[0040] Furthermore, the heat dissipation fins 1b3 of each motor housing are divided into two groups, and the two groups of heat dissipation fins 1b3 are distributed on both sides of the adjacent flat fork arms 4a, which can avoid interference, make full use of space, and improve the reliability of the wheel core electric drive system installation.

[0041] Furthermore, a number of heat dissipation fins 1b3 are provided on the outer surface of the motor housing 1b, which can improve the heat dissipation performance of the core components of the motor and ensure the stable operation of the controller.

[0042] In this embodiment, the heat dissipation fins 1b3 of each motor housing extend along the length of the flat fork arm 4a, thereby improving the ability of airflow to carry away the heat from the heat dissipation fins 1b3 of each motor housing during the two-wheeled vehicle's operation, and improving the heat dissipation performance of the controller.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A multi-purpose housing for a highly integrated wheel-core electric drive system, comprising a housing body (1), the housing body (1) including a partition plate (1a) and a motor housing (1b) and a reducer housing (1c) respectively mounted on both sides of the partition plate (1a) by threaded fasteners, wherein the motor housing (1b) and the partition plate (1a) together form a motor assembly chamber, and the reducer housing (1c) and the partition plate (1a) together form a reducer assembly chamber, characterized in that: A controller housing (1d) extending radially outward is integrally formed on the circumferential sidewall of the motor housing (1b), and a controller chamber is formed inside the controller housing (1d).

2. The multi-purpose enclosure according to claim 1, characterized in that: The motor housing (1b) includes a motor housing body (1b1) mounted on the side of the partition plate (1a) away from the reducer housing (1c) by threaded fasteners and a motor housing end cover (1b2) mounted on the end of the motor housing body (1b1) away from the partition plate (1a) by threaded fasteners. The controller housing (1d) is integrally formed on the circumferential sidewall of the motor housing end cover (1b2).

3. The multi-purpose enclosure according to claim 2, characterized in that: The motor housing end cover (1b2) includes an end cover base (1b21) installed on the end of the motor housing body (1b1) away from the partition plate (1a) and an end cover body (1b22) covering the end cover base (1b21) on the side away from the motor housing body (1b1). The end cover base (1b21) and the end cover body (1b22) are installed on the motor housing body (1b1) by threaded fasteners. The controller housing (1d) is composed of a first controller housing cover (1d1) and a second controller housing cover (1d2) that enclose and form a controller chamber. The first controller housing cover (1d1) is integrally formed on the circumferential sidewall of the end cover base (1b21), and the second controller housing cover (1d2) is integrally formed on the circumferential sidewall of the end cover body (1b22).

4. A mounting structure for a multi-purpose enclosure according to any one of claims 1-3, characterized in that: A first support shaft (2) extending away from the partition plate (1a) is fixedly installed on the motor housing (1b), and a second support shaft (3) extending away from the partition plate (1a) is fixedly installed on the reducer housing (1c). The first support shaft (2) and the second support shaft (3) are coaxially arranged and fixedly connected to the flat fork (4). A hub (5) that can rotate relative to the second support shaft (3) is fitted on the second support shaft (3). The controller housing (1d) extends along the length direction of one of the flat fork arms (4a) of the flat fork (4) and is fixedly installed on the inner side of the flat fork arm (4a).

5. The mounting structure of the multi-purpose enclosure according to claim 4, characterized in that: Several controller housing heat dissipation fins (1d3) are provided on the outer surface of the controller housing (1d).

6. The mounting structure of the multi-purpose enclosure according to claim 5, characterized in that: Each controller housing heat dissipation fin (1d3) extends along the length of the flat fork arm (4a).

7. The mounting structure of the multi-purpose enclosure according to claim 4, characterized in that: A plurality of motor housing heat dissipation fins (1b3) are provided on the outer surface of the motor housing (1b).

8. The mounting structure of the multi-purpose enclosure according to claim 7, characterized in that: Each motor housing heat dissipation fin (1b3) extends along the length of the flat fork arm (4a).

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