Brushless motor stator composite terminal block and electric power steering gear integrated machine brushless motor

Abstract

The utility model discloses a kind of brushless motor stator composite wiring frame, including conducting component group and insulating cladding structure, the conducting component group contains at least two conducting components, each conducting component is red copper sheet metal part, the insulating cladding structure is by injection molding process and is wrapped as a whole in each conducting component in conducting component group, the insulating cladding structure adopts openwork design.The utility model's brushless motor stator composite wiring frame, metal framework is not full wrapped, finished product does not need X ray, whether short circuit can be realized direct observation, it is convenient for short circuit detection, simplify detection process, improve short circuit detection work efficiency.The utility model further discloses a kind of brushless motor for electric power assisted steering gear all-in-one machine.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology. Specifically, this utility model relates to a brushless motor stator composite terminal block and a brushless motor for an integrated electric power steering system. Background Technology

[0002] In the brushless motor of the integrated electric power steering system, the stator terminal block is a key component for realizing circuit connection, and its structural rationality directly affects the motor performance and production efficiency.

[0003] Existing terminal blocks mostly adopt a structure with a fully plastic-encased metal frame. During the production process, the metal frame is prone to displacement during injection molding due to inaccurate mold positioning, resulting in a low part injection molding pass rate. At the same time, the fully encased structure requires complex methods such as X-rays for short circuit detection, which not only increases inspection costs but also reduces production efficiency. In addition, open circuit troubleshooting also faces problems of cumbersome operation and difficult judgment due to the enclosed structure, which seriously restricts the economy and reliability of motor production.

[0004] Chinese Patent Application No. 202210056172.5 discloses a terminal composite terminal block and a stator. The terminal composite terminal block includes a guide plate and a retaining frame connected to the guide plate. Multiple copper terminals are spaced apart around the periphery of the retaining frame, and multiple wire holes are spaced apart around the circumference of the guide plate. Each wire hole corresponds to one of the copper terminals. Because the terminal composite terminal block includes a guide plate and a retaining frame connected to the guide plate, and the retaining frame has multiple copper terminals spaced apart around its periphery, and the guide plate has multiple wire holes spaced apart around its circumference...

[0005] This invention provides a composite terminal block for a brushless motor stator, with a particular focus on how to improve the efficiency of short-circuit detection. Utility Model Content

[0006] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention provides a composite terminal block for a brushless motor stator, with the purpose of improving the efficiency of short-circuit detection.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a composite terminal block for a brushless motor stator, comprising a conductive component group and an insulating covering structure. The conductive component group includes at least two conductive components, each of which is a copper sheet metal part. The insulating covering structure encapsulates each conductive component in the conductive component group into one piece through an injection molding process. The insulating covering structure adopts a hollow design.

[0008] The surface of the insulating covering structure is provided with exposed holes.

[0009] Multiple exposed holes are provided.

[0010] The conductive component group includes four conductive components, namely a first conductive component, a second conductive component, a third conductive component, and a fourth conductive component.

[0011] The back of the insulating covering structure is provided with multiple top rod holes.

[0012] This utility model also provides a brushless motor for an integrated electric power steering system, including the aforementioned brushless motor stator composite terminal block.

[0013] This utility model relates to a composite terminal block for a brushless motor stator. The metal frame is not fully enclosed, and the finished product does not require X-rays. It allows for intuitive judgment of whether there is a short circuit, which facilitates short circuit detection, simplifies the detection process, and improves the efficiency of short circuit detection. Attached Figure Description

[0014] This manual includes the following figures, which illustrate the following:

[0015] Figure 1 This is a schematic diagram of the structure of the composite terminal block for the brushless motor stator of this utility model;

[0016] Figure 2 This is a schematic diagram of the arrangement of conductive components;

[0017] Figure 3 This is a front view of the composite terminal block for the brushless motor stator of this utility model;

[0018] The components in the diagram are labeled as follows: 1. First conductive component; 2. Second conductive component; 3. Third conductive component; 4. Fourth conductive component; 5. Insulating covering structure; 6. Top rod hole. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of this utility model, and to facilitate its implementation.

[0020] It should be noted that in the following embodiments, the terms "first", "second", "third" and "fourth" do not represent an absolute distinction in structure and / or function, nor do they represent the order of execution, but are merely for the convenience of description.

[0021] Firstly, such as Figures 1 to 3 As shown, this utility model provides a composite terminal block for a brushless motor stator, including a conductive component group and an insulating covering structure 5. The conductive component group includes at least two conductive components, each of which is a copper sheet metal part. The insulating covering structure 5 encapsulates each conductive component in the conductive component group into one piece through an injection molding process. The insulating covering structure 5 adopts a hollow design.

[0022] Specifically, in this embodiment, as Figures 1 to 3 As shown, the conductive component group includes four conductive components: a first conductive component 1, a second conductive component 2, a third conductive component 3, and a fourth conductive component 4. The conductive components are copper busbars. Each of the first conductive component 1, second conductive component 2, third conductive component 3, and fourth conductive component 4 is equipped with a connecting copper plate, which is located outside the insulating covering structure 5. The third conductive component 3 and the fourth conductive component 4 are arranged opposite each other, with the second conductive component 2 located between the first conductive component 1 and the third conductive component 3. All four conductive components are arc-shaped structures and are coaxially arranged.

[0023] In this embodiment, as Figures 1 to 3 As shown, the insulating covering structure 5 is injection molded from plastic. Multiple exposed holes are provided on the surface of the insulating covering structure 5, exposing the conductive components inside. The insulating covering structure 5 employs a hollow design, ensuring uniform plastic wall thickness and structural strength while reducing the amount of injection molding material used; this allows for a lighter finished part; and the multiple exposed holes created by the hollow design allow for a direct inspection of the radial arrangement of each conductive component after injection molding to ensure it meets design requirements.

[0024] In this embodiment, the back of the insulating covering structure 5 is provided with multiple push rod holes 6. At the same time, since the skeleton is exposed in many places, it is easy to position the four conductive parts axially and radially during injection molding, ensuring the positional accuracy between each conductive part after injection molding. This simplifies the design and manufacturing difficulty of the mold and also improves the processability of subsequent injection molding copper busbar positioning.

[0025] The above-described brushless motor stator composite terminal block structure has the following advantages:

[0026] 1. Facilitates short circuit detection: The metal frame is not fully enclosed, eliminating the need for X-rays on the finished product, allowing for intuitive judgment of whether a short circuit has occurred, thus simplifying the testing process.

[0027] 2. Improve injection molding pass rate: The three metal sheet frame frames facilitate mold positioning, are not easily moved during injection molding, and reduce defective products.

[0028] 3. Optimize mold process: The skeleton structure has strong adaptability, reduces the difficulty of mold positioning, and improves molding stability.

[0029] 4. Reduce testing costs: Eliminating the X-ray testing step reduces equipment investment and operating costs, thereby improving production efficiency.

[0030] 5. Simplified quality inspection: For non-fully enclosed structures, the skeleton condition can be directly observed, allowing for quick troubleshooting of circuit connection problems.

[0031] Secondly, this utility model also provides a brushless motor for an integrated electric power steering system, including the brushless motor stator composite terminal block with the above-described structure. This brushless motor stator composite terminal block can be referred to... Figures 1 to 3 The details will not be elaborated further here. Since the brushless motor for the integrated electric power steering system of this utility model includes the brushless motor stator composite terminal block in the above embodiments, it has all the advantages of the above-mentioned brushless motor stator composite terminal block.

[0032] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A composite terminal block for a brushless motor stator, characterized in that: It includes a conductive component group and an insulating covering structure. The conductive component group contains at least two conductive components, each of which is a copper sheet metal part. The insulating covering structure encapsulates each conductive component in the conductive component group into one piece through an injection molding process. The insulating covering structure adopts a hollow design.

2. The brushless motor stator composite terminal block according to claim 1, characterized in that: The surface of the insulating covering structure is provided with exposed holes.

3. The brushless motor stator composite terminal block according to claim 2, characterized in that: Multiple exposed holes are provided.

4. The brushless motor stator composite terminal block according to any one of claims 1 to 3, characterized in that: The conductive component group includes four conductive components, namely a first conductive component, a second conductive component, a third conductive component, and a fourth conductive component.

5. The brushless motor stator composite terminal block according to any one of claims 1 to 3, characterized in that: The back of the insulating covering structure is provided with multiple top rod holes.

6. A brushless motor for an integrated electric power steering system, characterized in that: Includes the brushless motor stator composite terminal block as described in any one of claims 1 to 5.

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