An integrated wheel motor structure

Abstract

The utility model discloses an integrated hub motor structure relates to motor structure technical field, including: motor box and motor body, integrated mechanism includes pivot and rotor integrated support, the output of motor body is installed with pivot and rotor integrated support, the top of motor box is installed with front end hub cover, the top of pivot and rotor integrated support is equipped with the positioning screw groove, the outer wall of front end hub cover is installed with the positioning screw rod, the outer wall of front end hub cover is installed with the tire body and is surrounded. The utility model discloses through installing integrated mechanism, and the front end hub cover covers the top of motor box, and then the positioning screw rod is fixed to the positioning screw groove, and the front end hub cover follows motor body and carries out linkage, and the tire body tire vulcanization is covered in the outside of front end cover, and the assembly link of tire and hub in traditional hub motor is saved, and then motor body work drives the rotation of front end hub cover, can realize normal work.

Description

Technical Field

[0001] This utility model relates to the field of motor structure technology, specifically an integrated hub motor structure. Background Technology

[0002] The definition of a hub motor structure refers to a technical solution that integrates a drive motor, transmission system (sometimes including a reduction gear), and braking device inside the wheel hub, enabling independent drive of a single wheel. Its core feature is that the motor directly drives the wheel to rotate, eliminating the need for intermediate mechanical components such as drive shafts and differentials found in traditional vehicles. It is applicable to passenger cars, commercial / special vehicles, and micro-vehicles.

[0003] Patent document CN223168103U discloses a motor hub structure, which includes "a hub, a stator fixedly installed inside the hub, a first rotor movably installed on the left side of the stator, a second rotor movably installed on the right side of the stator, and several grooves on the left and right sides of the stator, with an iron core fixedly installed inside the grooves. By improving the rotor, efficiency is increased and energy loss is effectively reduced. Its copper and iron losses are relatively low, which can significantly improve motor efficiency, even exceeding the national first-level energy efficiency level. In energy-saving tests of conventional water pumps and fans, it saves about 15%-25% energy compared to induction motors. By installing an optimized winding structure, and reasonably distributing the number of winding turns and the arrangement, it can output greater power and torque under the same volume or weight. The optimized winding structure can reduce resistance loss and improve current transmission efficiency, thereby achieving greater power and torque output."

[0004] However, the aforementioned published literature's motor hub structure mainly considers achieving greater power and torque output, which makes it inconvenient to integrate the front cover, oil seal, and tire into one unit.

[0005] In view of this, it is necessary to develop an integrated mechanism that can integrate the front cover, oil seal and tire into one unit, which is highly reliable and low in cost. Utility Model Content

[0006] The purpose of this utility model is to provide an integrated hub motor structure to solve the technical problem of making the hub motor have an integrated structure mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an integrated hub motor structure, comprising: a motor housing and a motor body, wherein the inner wall of the motor housing is provided with an integrated mechanism, the integrated mechanism being used to integrate the front cover, oil seal and tire into one piece, which has high reliability and low cost;

[0008] The integrated mechanism includes a rotating shaft and an integrated rotor bracket. The output end of the motor body is equipped with the rotating shaft and the integrated rotor bracket. A front hub cover is installed on the top of the motor housing. A positioning screw groove is provided on the top of the rotating shaft and the integrated rotor bracket. A positioning screw is installed on the outer wall of the front hub cover, and one end of the positioning screw extends into the interior of the positioning screw groove. A sealing ring is installed on the bottom of the front hub cover. The tire body is installed around the outer wall of the front hub cover.

[0009] Preferably, the motor body is installed on the inner wall of the motor housing.

[0010] Preferably, the outer wall of the front hub cover is provided with a protective mechanism, which is used to protect the front hub cover.

[0011] Preferably, the protective mechanism includes a protective cover located on the outer wall of the front hub cover.

[0012] Preferably, the outer wall of the protective cover is provided with a protective groove, and the inner wall of the protective groove is fitted with a rubber pad.

[0013] Preferably, the outer wall of the front hub cover is provided with mounting screw grooves.

[0014] Preferably, the outer wall of the protective cover is fitted with a mounting screw, and one end of the mounting screw extends into the interior of the mounting screw groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model integrates the front cover, oil seal, and tire into a single unit using an integrated mechanism, resulting in high reliability and low cost. It combines the separate front cover (protecting the internal structure of the motor), oil seal (preventing lubricant leakage), and tire (the part in contact with the ground) found in traditional hub motors into a single component through a plastic coating molding process. Utilizing high-temperature injection molding or compression molding technology, tire material (such as rubber) is directly coated onto the metal / plastic front cover and oil seal, creating a seamless physical fusion. Firstly, the integrated shaft and rotor bracket are connected to the motor body. Furthermore, the integrated shaft and rotor bracket employ metal stretching forming technology, using a single metal sheet through continuous stamping and stretching. The rotor support with a shaft structure is directly formed as a whole. Then, the front hub cover is placed on the top of the motor box, and the positioning screw is fixed into the positioning screw groove. The front hub cover moves in conjunction with the motor body. The tire body is vulcanized and covered on the outside of the front cover, eliminating the assembly step of tire and hub in traditional hub motors. Then, the motor body drives the front hub cover to rotate, and normal operation is achieved. The front hub cover is made of aluminum alloy. During installation, only one tightening operation is required (locking the front cover with the shaft and rotor integrated support). There is no need to install oil seals and tires separately. There is no relative displacement between the tire and the front cover, avoiding stress concentration caused by traditional bolt fixing. It is highly reliable and low in cost.

[0017] 2. This utility model protects the front hub cover by installing a protective mechanism. Since the front hub cover is in direct contact with the ground, it often scrapes against roadside rocks during use, causing external damage to the front hub cover. Therefore, this needs to be improved. First, the protective cover is fixed to the mounting screw groove by the mounting screw and installed on the side of the front hub cover. The protective cover protects the side. The protective cover is made of high-hardness plastic material, which reduces maintenance and replacement costs. In addition, rubber pads are used to protect the surface of the protective cover, thus providing a double-layer protection effect and improving the protective performance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the motor housing of this utility model;

[0019] Figure 2 This is a schematic diagram of the front structure of the motor housing of this utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the integrated shaft and rotor support of this utility model.

[0021] Figure 4 This is a schematic diagram of the front structure of the protective cover of this utility model.

[0022] In the diagram: 1. Motor housing; 2. Motor body; 3. Integrated shaft and rotor bracket; 4. Front hub cover; 5. Positioning screw groove; 6. Positioning screw; 7. Sealing ring; 8. Tire body; 9. Protective cover; 10. Protective groove; 11. Rubber pad; 12. Mounting screw groove; 13. Mounting screw. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Please see Figure 1 , Figure 2 and Figure 3An integrated hub motor structure includes: a motor housing 1 and a motor body 2. The inner wall of the motor housing 1 is provided with an integrated mechanism for integrating the front cover, oil seal, and tire into one unit, resulting in high reliability and low cost. The integrated mechanism includes a rotating shaft and a rotor integrated bracket 3. The output end of the motor body 2 is equipped with the rotating shaft and rotor integrated bracket 3. The top of the motor housing 1 is equipped with a front hub cover 4. The top of the rotating shaft and rotor integrated bracket 3 is provided with a positioning screw groove 5. The outer wall of the front hub cover 4 is equipped with a positioning screw 6, and one end of the positioning screw 6 extends into the interior of the positioning screw groove 5. The bottom of the front hub cover 4 is equipped with a sealing ring 7. The outer wall of the front hub cover 4 is surrounded by a tire body 8. The inner wall of the motor housing 1 is equipped with the motor body 2. This design integrates the three separate components of a traditional hub motor—the front cover (protecting the internal structure of the motor), the oil seal (preventing lubricating oil leakage), and the tire (the part in contact with the ground)—into a single component through a plastic coating molding process. High-temperature injection molding or compression molding technology is used to integrate the tire material (such as...) Rubber is directly wrapped around the metal / plastic front cover and oil seal ring, forming a seamless physical structure. First, the shaft and rotor integrated bracket 3 are connected to the motor body 2. The shaft and rotor integrated bracket 3 adopt metal stretching forming technology, using a metal sheet to directly form the rotor bracket with a shaft structure through continuous stamping and stretching. Then, the front hub cover 4 is covered on the top of the motor box 1. Then, the positioning screw 6 is fixed into the positioning screw groove 5, and the front hub cover 4 moves in conjunction with the motor body 2. The tire body 8 is vulcanized and wrapped around the front cover, eliminating the assembly of the tire and hub in the traditional hub motor. Then, the motor body 2 drives the front hub cover 4 to rotate, thus achieving normal operation. The front hub cover 4 is made of aluminum alloy. During installation, only one tightening operation is required (locking the front cover to the shaft and rotor integrated bracket 3). There is no need to install the oil seal and tire separately. There is no relative displacement between the tire and the front cover, avoiding stress concentration caused by traditional bolt fixing. It is highly reliable and low in cost.

[0027] Please see Figure 2 and Figure 4The outer wall of the front wheel hub cover 4 is equipped with a protective mechanism to protect the front wheel hub cover 4. The protective mechanism includes a protective cover 9, which is located on the outer wall of the front wheel hub cover 4. The outer wall of the protective cover 9 has a protective groove 10, and the inner wall of the protective groove 10 is fitted with a rubber pad 11. The outer wall of the front wheel hub cover 4 has a mounting screw groove 12, and the outer wall of the protective cover 9 is fitted with a mounting screw 13, one end of which extends into the interior of the mounting screw groove 12. The front wheel hub cover 4 is in direct contact with the ground, which often results in the side scraping against roadside rocks during use, causing external damage to the front wheel hub cover 4. Therefore, this needs to be improved. First, the protective cover 9 is fixed to the mounting screw groove 12 by the mounting screw 13 to install it on the side of the front wheel hub cover 4. The protective cover 9 is made of high-hardness plastic material, which reduces maintenance and replacement costs. The rubber pad 11 is used to protect the surface of the protective cover 9, thus providing a double-layer protection effect and improving the protective performance.

[0028] The working principle involves integrating the three separate components of a traditional hub motor—the front cover (protecting the internal structure of the motor), the oil seal ring (preventing lubricant leakage), and the tire (the part in contact with the ground)—into a single component through a plastic coating molding process. Using high-temperature injection molding or compression molding technology, tire material (such as rubber) is directly coated onto the metal / plastic front cover and oil seal ring, creating a seamless physical fusion. First, the integrated shaft and rotor bracket 3 are connected to the motor body 2. The integrated shaft and rotor bracket 3 are formed using metal stretching technology, directly creating the rotor bracket with a shaft structure from a single metal sheet through continuous stamping and stretching. Then, the front hub cover 4 is placed on top of the motor housing 1, and the positioning screw 6 is fixed into the positioning screw groove 5. The front hub cover 4 then moves in tandem with the motor body 2. The tire body 8 is vulcanized and coated onto the outside of the front cover, eliminating the tire-hub assembly step found in traditional hub motors. Then, the motor body 2 drives the front hub cover 4 to rotate, thus achieving normal operation. The front hub cover 4 is made of aluminum alloy. During installation, only one tightening operation is required (locking the front cover and the integrated bracket 3 of the shaft and rotor). There is no need to install oil seals and tires separately. There is no relative displacement between the tire and the front cover, avoiding stress concentration caused by traditional bolt fixing. It is also highly reliable and low in cost. The front hub cover 4 is in direct contact with the ground, which often causes the side layer to scrape against roadside rocks during use, resulting in external damage to the front hub cover 4. Therefore, this needs to be improved. First, the protective cover 9 is fixed to the mounting screw groove 12 by the mounting screw 13 and installed on the side of the front hub cover 4. The protective cover 9 is used to protect the side. The protective cover 9 is made of high-hardness plastic material, which reduces maintenance and replacement costs. The rubber pad 11 is used to protect the surface of the protective cover 9, thus providing a double-layer protection effect and improving the protection performance.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An integrated hub motor structure, characterized in that, Includes: motor housing (1) and motor body (2), the inner wall of the motor housing (1) is provided with an integrated mechanism, the integrated mechanism is used to integrate the front cover, oil seal and tire, which has high reliability and low cost; The integrated mechanism includes a rotating shaft and an integrated rotor bracket (3). The output end of the motor body (2) is equipped with the rotating shaft and the integrated rotor bracket (3). The top of the motor housing (1) is equipped with a front hub cover (4). The top of the rotating shaft and the integrated rotor bracket (3) is provided with a positioning screw groove (5). The outer wall of the front hub cover (4) is equipped with a positioning screw (6), and one end of the positioning screw (6) extends into the interior of the positioning screw groove (5). The bottom of the front hub cover (4) is equipped with a sealing ring (7). The outer wall of the front hub cover (4) is surrounded by a tire body (8).

2. The integrated hub motor structure according to claim 1, characterized in that: The motor body (2) is installed on the inner wall of the motor housing (1).

3. The integrated hub motor structure according to claim 1, characterized in that: The outer wall of the front hub cover (4) is provided with a protective mechanism, which is used to protect the front hub cover (4).

4. The integrated hub motor structure according to claim 3, characterized in that: The protective mechanism includes a protective cover (9) located on the outer wall of the front hub cover (4).

5. The integrated hub motor structure according to claim 4, characterized in that: The outer wall of the protective cover (9) is provided with a protective groove (10), and the inner wall of the protective groove (10) is provided with a rubber pad (11).

6. The integrated hub motor structure according to claim 4, characterized in that: The outer wall of the front hub cover (4) is provided with mounting screw grooves (12).

7. The integrated hub motor structure according to claim 6, characterized in that: The outer wall of the protective cover (9) is fitted with a mounting screw (13), and one end of the mounting screw (13) extends into the interior of the mounting screw groove (12).

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