Quick-assembly and quick-disassembly multi-brake type semi-split hub motor

Abstract

The utility model relates to a quick-assembly quick-disassembly multi-brake form semi-split hub motor, which comprises a semi-split rotor wheel and split covers which are detachably connected, the semi-split rotor wheel is an installation reference, the split covers of multiple specifications are detachably connected with the semi-split rotor wheel, and the split covers of multiple specifications are detachably connected with the semi-split rotor wheel. The side, facing the split cover, of the wheel body of the half-split type rotor is of a half-wrapping structure and extends from the circumference of the wheel body to the circle center to be wrapped, and an installation position used for installing the split cover is formed. According to the utility model, a multi-size drum brake and disc brake structure is considered, the rim part adopts the semi-split type rotor wheel, and the semi-split type rotor wheel is designed to be a universal piece, so that only the same pair of rim mold product is needed in the production process, and the mold opening cost of the product is greatly controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle hub motors, in particular to a semi-split hub motor with quick-install and quick-disassemble multiple brakes. Background Art

[0002] As the most commonly used drive motor in electric vehicles, in-wheel motors (IHMs) require no transmission system, with driving force applied directly to the wheels. They offer high drive efficiency, compact structure, and high reliability. In this technological application, IHMs used in electric two-wheeled vehicles are generally classified into two types of brakes: disc brake motors and drum brake motors. These two types of IHMs will continue to coexist, depending on user preferences. Furthermore, due to varying customer needs, brake models are also diverse. In the industry, drum brakes offer diameters of 102, 110, and 130 mm, while disc brakes come in sizes of 33, 48, and 58 mm.

[0003] The drive hub motor in the electric two-wheeled vehicle industry is an outer rotor permanent magnet motor. This motor is supported by side covers on both sides. One of the side covers has a drum brake groove or a disc brake disc. The rim acts as a magnetic ring and also takes into account the outer rotor function. The stator is fixed to the center shaft, ultimately forming the basic structure of the outer rotor hub motor. This structure will lead to different motor side covers due to different motor brake types. Therefore, if the brake type of a motor with the same performance is different, the motor must have a corresponding brake structure and a corresponding side cover with a brake structure. This structure of having multiple specifications of side covers for the same performance motor is not conducive to unified product manufacturing. On the other hand, when the motor needs to be repaired, the entire side cover structure needs to be disassembled, which increases the difficulty of repair.

[0004] In addition, industry-specific integrated wheel motor products are becoming popular. The wheel hub and brake cover are one-piece molded structures stamped by large molds. A set of molds can only stamp out products of one model and one size of brake type. If you want to output an integrated wheel product of another brake type, you need to open a new special mold, which is a huge cost investment. Utility Model Content

[0005] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a semi-split hub motor with a rational structure, quick assembly and quick disassembly, and multiple brakes, which reduces the number of product types and models and reduces production costs.

[0006] The technical solutions adopted in this utility model are as follows:

[0007] A quick-install and quick-disinstall multi-brake semi-split hub motor includes a detachably connected semi-split rotor wheel and a split cover. The semi-split rotor wheel serves as the installation base, and the split covers of multiple specifications are detachably connected to the semi-split rotor wheel.

[0008] The side of the semi-split rotor wheel facing the split cover is a semi-enclosed structure, which extends from the circumference of the wheel body to the center of the circle and forms an installation position for installing the split cover.

[0009] As a further improvement of the above technical solution:

[0010] The semi-split rotor wheel is equipped with:

[0011] The outer rim, located at the circumference,

[0012] The integrated magnetic ring is located in the circumferential depression of the outer rim.

[0013] The integrated half cover is located on one side of the outer rim and is an integral stamping part together with the outer rim and the integrated magnetic ring; the integrated half cover is an installation position for installing the split cover.

[0014] The integrated half cover extends from the outer rim to the center of the circle, and includes an inclined annular surface and a flanged annular surface located at the inner diameter of the inclined annular surface. The split cover is in contact with the flanged annular surface.

[0015] The split cover and the flanged annular surface are detachably and securely connected.

[0016] Reinforcement ribs are formed on the inclined annular surface.

[0017] The outer rim is installed and connected to the motor on a side facing away from the split cover.

[0018] The split cover includes disc brake covers and drum brake covers of various specifications.

[0019] The split cover includes a mounting surface and an extension section. The mounting surface is connected to the semi-split rotor wheel, and the extension section is coaxial with the mounting surface. A quick-release slot is formed on the extension section.

[0020] The width of the quick release slot is greater than the width of the slot bottom.

[0021] The quick-release slot is compatible with conventional tools.

[0022] The beneficial effects of the utility model are as follows:

[0023] The utility model is aimed at the outer rotor hub motor for electric two-wheeled vehicles and designs an outer rotor motor with a semi-split rotor hub. A pair of hub structure molds can be used to achieve the purpose of taking into account multiple brake types of the motor, reducing the huge mold opening cost of the product.

[0024] Since the hubs of conventional integrated in-wheel motors are all stamped into a single structure and have a single drum brake or disc brake size, they cannot accommodate multiple sizes and models of brake structures. The present invention accommodates multiple sizes of drum brakes and disc brakes. The rim utilizes a semi-split rotor wheel. This semi-split rotor wheel is designed as a universal component, allowing the same rim mold to be used during production. By using small split drum brake or disc brake covers of different specifications, a variety of brake types can be achieved.

[0025] In addition, compared with the one-piece wheel structure with a brake structure, the semi-split wheel hub is easier to reduce the cost on the mold.

[0026] By separating the brake section into separate parts, the drum and disc brake configurations can be achieved, resolving the previous issue of a single integrated wheel rim mold only being able to accommodate one brake size and type. This reduces the number of integrated wheel types and significantly reduces mold-making costs. Furthermore, the quick-install and quick-disinstall structure simplifies the manufacturing process and facilitates automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a three-dimensional diagram of the semi-split rotor wheel of the present invention.

[0028] Figure 2 This is a cross-sectional view of the semi-split rotor wheel of the present invention.

[0029] Figure 3 This is the front view of the semi-split rotor wheel of the present utility model.

[0030] Figure 4 This is a schematic diagram of the disc brake cover when it is installed.

[0031] Figure 5 This is the front view of the disc brake cover.

[0032] Figure 6 This is a cross-sectional view of the disc brake cover.

[0033] Figure 7 This is a schematic diagram of the status when the drum brake cover is installed.

[0034] Figure 8 This is the front view of the drum brake cover.

[0035] Figure 9 This is a cross-sectional view of the drum brake cover.

[0036] Among them: 1. Semi-split rotor wheel; 2. Disc brake cover; 3. Drum brake cover;

[0037] 101. Integrated half cover; 102. Integrated magnetic ring; 103. Outer rim; 104. Brake cover locking hole; 105. Inclined annular surface; 106. Flanged annular surface;

[0038] 201, disc brake locking hole; 202, disc brake quick release slot; 203 disc brake mounting surface; 204 disc brake extension section;

[0039] 301. Drum brake quick-release slot; 302. Drum brake mounting surface; 303. Drum brake extension section; 304. Drum brake locking hole. DETAILED DESCRIPTION

[0040] The specific implementation of the present utility model will be described below with reference to the accompanying drawings.

[0041] like Figures 1-9 As shown, the quick-install and quick-release multi-brake semi-split hub motor of this embodiment includes a detachably connected semi-split rotor wheel 1 and a split cover. The semi-split rotor wheel 1 is the installation base, and the split covers of multiple specifications are detachably connected to the semi-split rotor wheel 1.

[0042] The side of the semi-split rotor wheel 1 facing the split cover is a semi-enclosed structure, which extends from the circumference of the wheel body to the center of the circle and forms an installation position for installing the split cover.

[0043] The semi-split rotor wheel 1 is provided with:

[0044] The outer rim 103 is located at a circumferential position,

[0045] The integrated magnetic ring is located in the circumferential depression of the outer rim 103.

[0046] The integrated half cover 101 is located on one side of the outer rim 103 and is an integral stamping part together with the outer rim 103 and the integrated magnetic ring. The integrated half cover 101 is an installation position for installing the split cover.

[0047] The integral half cover 101 extends from the outer rim 103 toward the center of the circle and includes an inclined annular surface 105 and a flanged annular surface 106 located at the inner diameter of the inclined annular surface 105 . The split cover is in contact with the flanged annular surface 106 .

[0048] The split cover and the flanged annular surface 106 are detachably fastened together.

[0049] Reinforcement ribs are formed on the inclined annular surface 105 .

[0050] The outer rim 103 is installed and connected to the motor at a side facing away from the split cover.

[0051] The split cover includes disc brake covers 2 and drum brake covers 3 of multiple specifications.

[0052] The split cover includes a mounting surface and an extension section. The mounting surface is connected to the semi-split rotor wheel 1, and the extension section is coaxial with the mounting surface. A quick-release slot is formed on the extension section.

[0053] The width of the quick release slot is greater than the width of the slot bottom.

[0054] The quick-release slot is compatible with conventional tools.

[0055] The specific structure and working principle of the utility model are as follows:

[0056] Compared with the conventional integrated motor housing, the biggest difference of the present invention is that the motor housing is divided into two parts, namely a semi-split rotor wheel 1 and a movable cover that can be quickly disassembled and assembled between the semi-split rotor wheel 1.

[0057] like Figure 1-Figure 3 As shown, the semi-split rotor wheel 1 is an outer rim 103 with an integral half cover 101 and an integral magnetic conductive ring 102 , and these structures are integral stamped parts.

[0058] The outer rim 103 is used to mount the tire, ensuring visibility for the motor's basic functions. A flanged edge structure is also formed around the outer rim 103 to increase its strength. The integral magnetic ring 102 is used to attach permanent magnets to its inner ring. Multiple locking holes are also formed on the outer rim 103 for securing the motor with the end caps and brake cover. All locking holes on the outer rim 103 are punched from a stamped iron sheet with a flanged edge, ensuring both locking force and overall motor strength.

[0059] The integral half cover 101 of the outer rim 103 is a semi-open design, extending from the circumference to the center of the circle to form an annular structure, and is also stamped from an iron piece. Reinforcement ribs are set on the integral half cover 101 to increase the strength.

[0060] The purpose of installing an integrated half cover 101 on the outer rim 103 is, firstly, to provide a base for subsequent installation of various brake covers, and secondly to control material costs. This eliminates the need for aluminum connectors when installing the brake cover, significantly reducing the number of connectors and providing a significant cost advantage.

[0061] The integrated half cover 101 can be matched with more different models of disc brake covers 2 and drum brake covers 3. Two examples are given below to illustrate.

[0062] like Figure 4-Figure 6 As shown, when the installation requirement is a disc brake motor structure, the disc brake cover 2 is installed on the integrated half cover 101. The disc brake cover 2 is provided with a disc brake locking hole 201 and a quick release slot for the disc brake cover 2. The integrated half cover 101 is provided with a brake cover locking hole 104. The disc brake locking hole 201 on the disc brake cover 2 is fastened to the brake cover locking hole 104 by screws. The brake cover locking hole 104 is located near the inner diameter of the integrated half cover 101.

[0063] The disc brake cover 2 includes a disc brake mounting surface flatly attached to the integrated half cover 101 and a disc brake extension section coaxial with the mounting surface. The disc brake locking hole 201 of the disc brake cover 2 is at the circumferential contour of the mounting surface, and the disc brake quick release slot 202 is on the outer circular surface of the extension section and is arranged close to the mounting surface.

[0064] The disc brake quick release groove 202 is a sunken groove, including two groove side walls, wherein the groove side wall close to the disc brake mounting surface is an inclined surface, and the other groove side wall is perpendicular to the axis of the extension section. The groove width of the entire groove is greater than the groove bottom width.

[0065] like Figure 7-Figure 9 As shown, when the installation requirement is a drum brake motor structure, a drum brake cover 3 is used for installation. The drum brake cover 3 also includes a drum brake mounting surface 302 and a drum brake extension section 303. Drum brake locking holes 304 are arranged in an array at the circumferential contour of the drum brake mounting surface 302, and a drum brake quick-release slot 301 is opened on the outer circumferential surface of the drum brake extension section 303.

[0066] The drum brake quick release groove 301 is a sunken groove, including two groove side walls, wherein the groove side wall close to the drum brake mounting surface 302 is an inclined surface, and the other groove side wall is perpendicular to the extension section axis. The groove width of the entire groove is greater than the groove bottom width.

[0067] The advantage of the disc brake cover 2 quick release slots and the drum brake cover 3 quick release slots is that there is no need to use specific disassembly and assembly tools like conventional technology. When the motor needs to be disassembled, ordinary tools can be used through the quick release slots to easily remove the brake cover.

[0068] The advantages of the present invention are that the universal and unique semi-split rotor wheel 1 is combined with different split brake covers to achieve low-cost production and high-efficiency disassembly and assembly of brake hub motors of different models and sizes.

[0069] For example, the original integrated wheel product has a built-in brake structure, which is integrated with the brake. When the brake type is a drum brake with a diameter of 110, the cost of a one-piece stamping die is approximately 250,000 yuan. When the product needs to be added to a new model or upgraded to a disc brake or a drum brake with a diameter of 130, the original drum brake model and 110 diameter stamping die becomes unsuitable due to the different brakes. A new customized die is required, which will become very expensive.

[0070] The semi-split hub structure of the present invention utilizes the semi-split rotor wheel 1 as a universal component. The integrated half-cover 101 maintains the material advantages of the original integrated wheel and controls material costs while simplifying the structure and mold. This reduces mold investment for the semi-split rotor wheel 1 by over 30%. Furthermore, it provides mounting space for the separately installed disc brake cover 2 and drum brake cover 3.

[0071] When the motor needs to add a new brake cover type or change the size, only a split brake cover mold needs to be added. The cost of a single set of brake cover molds is less than 30,000 yuan. Compared with the original one-piece wheel hub, it greatly reduces the mold opening cost and gets rid of the disadvantages of customized products.

[0072] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the scope of protection of the utility model.

Claims

1. A quick-install, quick-release, multi-brake semi-split in-wheel motor, characterized by: It comprises a detachably connected semi-split rotor wheel (1) and a split cover, wherein the semi-split rotor wheel (1) serves as an installation reference, and the split covers of multiple specifications are detachably connected to the semi-split rotor wheel (1). The side of the semi-split rotor wheel (1) facing the split cover is a semi-enclosed structure, which extends from the circumference of the wheel body to the center of the circle and forms an installation position for installing the split cover.

2. The quick-install, quick-release, multi-brake semi-split hub motor according to claim 1, characterized in that: The semi-split rotor wheel (1) is provided with: The outer rim (103), located at a circumferential position, An integrated magnetic ring is located in a circumferential depression of the outer rim (103). The integrated half cover (101) is located on one side of the outer rim (103) and is an integrated stamping part together with the outer rim (103) and the integrated magnetic ring; the integrated half cover (101) is an installation position for installing the split cover.

3. The quick-install, quick-release, multi-brake semi-split hub motor according to claim 2, characterized in that: The integrated half cover (101) extends from the outer rim (103) toward the center of the circle and comprises an inclined annular surface (105) and a flanged annular surface (106) located at the inner diameter of the inclined annular surface (105). The split cover is in contact with the flanged annular surface (106).

4. The quick-install, quick-release, multi-brake semi-split hub motor according to claim 3, characterized in that: The split cover and the flanged annular surface (106) are detachably fastened together.

5. The quick-install, quick-release, multi-brake semi-split hub motor according to claim 3, characterized in that: Reinforcement ribs are formed on the inclined annular surface (105).

6. The quick-install, quick-release, multi-brake semi-split hub motor according to claim 2, characterized in that: The outer rim (103) is installed and connected to the motor on a side facing away from the split cover.

7. The quick-install, quick-release, multi-brake semi-split hub motor according to claim 1, characterized in that: The split cover comprises disc brake covers (2) and drum brake covers (3) of various specifications.

8. The quick-install, quick-release, multi-brake semi-split hub motor according to claim 1, characterized in that: The split cover includes a mounting surface and an extension section, the mounting surface is connected to the semi-split rotor wheel (1), and the extension section is coaxial with the mounting surface; A quick-release slot is formed on the extension section.

9. The quick-install, quick-release, multi-brake semi-split hub motor according to claim 8, characterized in that: The width of the quick release slot is greater than the width of the slot bottom.

10. The quick-install, quick-release, multi-brake semi-split hub motor according to claim 9, characterized in that: The quick-release slot is compatible with conventional tools.

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