High-strength power-assisted steering gear stator

Abstract

The high-strength power-assisted steering gear stator comprises a yoke part, tooth bodies and tooth crowns, the inner wall of the yoke part is fixedly connected with a plurality of groups of tooth bodies, a tooth groove is formed between every two groups of tooth bodies, the end parts of each group of tooth bodies are fixedly connected with the tooth crowns, and groove openings are formed between every two groups of tooth crowns. A plurality of groups of reinforcing rib tables are fixedly connected to the two sides of each group of tooth bodies, the reinforcing rib tables are fixedly connected to the inner wall of the yoke part, a plurality of groups of heat dissipation holes are formed in the yoke part, and a plurality of groups of heat dissipation fins are further fixedly connected to the outer wall of the yoke part. The utility model relates to the technical field of stator structures, and has the characteristics of high strength and excellent heat dissipation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of stator structures, in particular to a high-strength power steering stator. Background Art

[0002] The power steering system is a vital component in modern cars. It uses electric or hydraulic power-assist mechanisms to reduce the torque required for the driver to operate the steering wheel, improving driving comfort and controllability. At present, the main power steering system is the electric power steering device, in which the motor is the main component, and the motor includes the stator. When driving a car, steering is a frequent operation, which requires the motor in the power steering device to work continuously. At present, the structure of the stator in the motor is mostly made of multiple sets of steel sheet punchings stacked together. Such a structure is prone to deformation or material fatigue under high load or high temperature environment. This design often cannot withstand long-term high-intensity workloads, affecting the stability and service life of the system. For example, in the case of high-speed steering or frequent use, the stator may have mechanical failures due to insufficient strength. Moreover, the motor will generate a lot of heat when working for a long time. If the heat dissipation design is unreasonable, the stator temperature will be too high, which will then cause the stator to overheat, causing thermal expansion, material performance degradation or even damage, causing steering system failure. Utility Model Content

[0003] In view of the above-mentioned deficiencies existing in the prior art, the utility model aims to provide a power steering stator with high strength and excellent heat dissipation effect.

[0004] The technical solution adopted by the utility model to achieve the above-mentioned purpose is: a high-strength power steering stator, including a yoke, a tooth body and a tooth crown, a plurality of groups of the tooth bodies are fixedly connected to the inner wall of the yoke, a tooth groove is between every two groups of the tooth bodies, the end of each group of the tooth bodies is fixedly connected to the tooth crown, a groove opening is provided between every two groups of the tooth crowns, a plurality of groups of reinforcing rib platforms are fixedly connected to the two sides of each group of the tooth bodies, the reinforcing rib platforms are fixedly connected to the inner wall of the yoke, a plurality of groups of heat dissipation holes are provided on the yoke, and a plurality of groups of heat dissipation fins are also fixedly connected to the outer wall of the yoke.

[0005] In the above technical solution, the heat dissipation holes are radial heat dissipation holes, and the heat dissipation holes are hexagonal holes.

[0006] In the above technical solution, a row of heat dissipation holes is provided on the yoke corresponding to each group of the tooth bodies, one end opening of the heat dissipation hole is located on the tooth crown, and the other end opening is located on the outer wall of the yoke.

[0007] In the above technical solution, a recessed groove is provided on the yoke corresponding to each row of the heat dissipation holes. The heat dissipation holes are communicated with the recessed grooves, and multiple groups of heat dissipation fins are fixedly connected in the recessed grooves.

[0008] In the above technical solution, there is an air flow gap between the top of the heat dissipation fin and the outer wall of the yoke.

[0009] In the above technical solution, the yoke, the tooth body, the tooth crown, and the reinforcing rib platform adopt an integral structure.

[0010] In the above technical solution, the reinforcing rib platform adopts a triangular reinforcing platform.

[0011] In the above technical solution, multiple groups of installation strip grooves are provided on the outer wall of the yoke.

[0012] Advantages of the present utility model:

[0013] 1. Through the setting of the reinforcing rib platform, the connection strength between the tooth body and the yoke is more excellent, improving the overall strength of the stator. Moreover, the yoke, the tooth body, the tooth crown, and the reinforcing rib platform adopt an integral structure, which can further ensure the excellent strength of the stator;

[0014] 2. Through the setting of the heat dissipation holes, the heat dissipation effect of the stator is more excellent, and the heat dissipation holes are radially arranged. In this way, when the rotor inside the stator rotates, the wind generated by the rotor can quickly dissipate heat from the stator. Further, multiple groups of heat dissipation fins are also provided on the outer wall of the stator, which increases the heat dissipation area and improves the heat dissipation effect. In addition, there is an air flow gap between the heat dissipation fins and the outer wall of the yoke, so that the heat dissipated by the heat dissipation holes and the heat dissipation fins can flow and dissipate heat quickly, thereby further improving the heat dissipation effect of the stator and ensuring the stability of the steering gear during long-term operation. Description of the drawings

[0015] Figure 1 It is a schematic structural diagram of the present utility model;

[0016] Figure 2 It is a schematic structural diagram of the present utility model from another angle;

[0017] Figure 3 It is a front view structural diagram of the present utility model.

[0018] In the figure: 101 yoke, 102 tooth body, 103 tooth crown, 104 tooth groove, 105 groove opening, 200 reinforcing rib platform, 300 heat dissipation hole, 400 heat dissipation fin, 500 recessed groove, 600 air flow gap, 700 installation strip groove. Detailed implementation manners

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0020] Please refer to Figure 1 —3, a high-strength power steering stator, including a yoke portion 101, a tooth body 102, and a tooth crown 103. Among them, multiple groups of tooth bodies 102 are fixedly connected to the inner wall of the yoke portion 101. A tooth groove 104 is provided between every two groups of tooth bodies 102. The end of each group of tooth bodies 102 is fixedly connected with a tooth crown 103. A groove opening 105 is provided between every two groups of tooth crowns 103;

[0021] Furthermore, multiple groups of reinforcing rib platforms 200 are fixedly connected to both sides of each group of tooth bodies 102. The reinforcing rib platforms 200 are fixedly connected to the inner wall of the yoke portion 101, and the reinforcing rib platforms 200 adopt triangular reinforcing platforms. In addition, the yoke portion 101, the tooth body 102, the tooth crown 103, and the reinforcing rib platforms 200 adopt an integrally cast molding structure. Such a structural design makes the stator itself have higher strength, and the connection strength between the tooth body 102 and the yoke portion 101 can be improved by the arrangement of the reinforcing rib platforms 200;

[0022] Moreover, multiple groups of heat dissipation holes 300 are provided on the yoke portion 101. Here, the heat dissipation holes 300 adopt a radially arranged, hexagonal hole structure. Specifically, a row of heat dissipation holes 300 is provided on the yoke portion 101 corresponding to each group of tooth bodies 102. One end orifice of the heat dissipation hole 300 is located on the tooth crown 103, and the other end orifice is located on the outer wall of the yoke portion 101. In this way, when the stator is applied to the internal motor of the power steering, the wind generated by the rotation of the rotor can quickly dissipate heat from the stator;

[0023] Furthermore, multiple groups of heat dissipation fins 400 are fixedly connected to the outer wall of the yoke portion 101. That is, a recessed groove 500 is provided on the yoke portion 101 corresponding to each row of heat dissipation holes 300. The heat dissipation holes 300 are communicated with the recessed groove 500, and multiple groups of heat dissipation fins 400 are fixedly connected in the recessed groove 500. The design of the heat dissipation fins 400 can increase the heat dissipation area of the stator and improve the heat dissipation efficiency of the stator. Further optimized, there is an air flow gap 600 between the top of the heat dissipation fins 400 and the outer wall of the yoke portion 101. In this way, the heat dissipated by the heat dissipation holes 300 and the heat dissipation fins 400 can flow and dissipate heat quickly, thereby further improving the heat dissipation effect of the stator and ensuring the stability of the long-term operation of the steering gear;

[0024] Of course, in order to realize the installation of the stator on the motor housing, multiple groups of installation strip grooves 700 are provided on the outer wall of the yoke portion 101. Here, the installation strip grooves 700 can cooperate with the installation strips on the inner wall of the motor housing to enable the installation of the stator, and the installation is simple and convenient.

[0025] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0026] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-strength power steering stator, comprising a yoke (101), a tooth body (102) and a tooth crown (103), wherein a plurality of groups of the tooth bodies (102) are fixedly connected to the inner wall of the yoke (101), a tooth groove (104) is provided between every two groups of the tooth bodies (102), the end of each group of the tooth bodies (102) is fixedly connected to the tooth crown (103), and a slot opening (105) is provided between every two groups of the tooth crowns (103), characterized in that: Multiple groups of reinforcing rib platforms (200) are fixedly connected to both sides of each group of the tooth bodies (102); the reinforcing rib platforms (200) are fixedly connected to the inner wall of the yoke (101); the yoke (101) is provided with multiple groups of heat dissipation holes (300); and the outer wall of the yoke (101) is also fixedly connected to multiple groups of heat dissipation fins (400).

2. A high-strength power steering stator according to claim 1, characterized in that: The heat dissipation holes (300) are radial heat dissipation holes, and the heat dissipation holes (300) are hexagonal holes.

3. A high-strength power steering stator according to claim 2, characterized in that: A row of heat dissipation holes (300) is provided on the yoke (101) corresponding to each group of the tooth bodies (102); one end opening of the heat dissipation hole (300) is located on the tooth crown (103), and the other end opening is located on the outer wall of the yoke (101).

4. A high-strength power steering stator according to claim 3, characterized in that: The yoke (101) is provided with a recessed groove (500) corresponding to each row of the heat dissipation holes (300), the heat dissipation holes (300) are communicated with the recessed grooves (500), and a plurality of groups of heat dissipation fins (400) are fixedly connected in the recessed grooves (500).

5. A high-strength power steering stator according to claim 4, characterized in that: An airflow gap (600) is provided between the top of the heat dissipation fin (400) and the outer wall of the yoke (101).

6. A high-strength power steering stator according to claim 1, characterized in that: The yoke (101), the tooth body (102), the tooth crown (103) and the reinforcing rib platform (200) adopt an integrated structure.

7. A high-strength power steering stator according to claim 1, characterized in that: The reinforcing rib platform (200) is a triangular reinforcing rib platform.

8. The high-strength power steering stator according to claim 1, characterized in that: A plurality of groups of mounting grooves (700) are provided on the outer wall of the yoke (101).

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