Stator wiring bus bar structure of power-assisted steering motor

Abstract

The utility model belongs to the technical field of motor electronics, and particularly relates to a structure of a power-assisted steering motor stator wiring busbar, which comprises a busbar, a common copper bar is arranged on the upper surface of the busbar, enameled wires are arranged on the common copper bar and are arranged through a path set by the common copper bar, three stand columns are arranged on one opposite side of the common copper bar, and the three stand columns are arranged on the other side of the common copper bar. Clamping grooves are symmetrically formed in the stand columns, limiting mechanisms used for reinforcing and limiting enameled wires are arranged in the clamping grooves, copper bar structures at the positions of three stand columns are omitted, and therefore three welding points are omitted, the material cost is reduced, the welding points (9 welding points of an original structure and 6 welding points of an existing structure) are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of motor and electronic technology, and in particular relates to the structure of a stator wiring busbar for a power steering motor. Background Technology

[0002] The BUSBAR (Busbar Arrangement) structure, as an advanced stator wiring method, has received widespread attention and application in the motor field in recent years. The BUSBAR stator structure simplifies the wiring process and improves production efficiency by centrally connecting multiple coils through busbars. It also significantly optimizes current distribution, reduces energy consumption, and enhances the overall performance of the motor.

[0003] However, existing stator assemblies include several wound single-lobed stator cores (such as...) Figure 1 ) and busbar (e.g.) Figure 6 The stator winding consists of several single-lobed stator cores, each with two enameled wires extending from it after winding. These single-lobed stator cores are then joined and welded together to form a stator winding (e.g., ...). Figure 7 At this point, multiple leads need to be connected through arrangement and welding to meet the winding requirements of the design and realize the motor function. The busbar is used to connect the leads. Existing busbar structures weld the enameled wire to the copper busbar for each single stator core winding. This method has several disadvantages: it requires a large number of copper busbars, resulting in higher costs; the numerous welding points increase the risk of incomplete soldering, loosening, and breakage, increase equipment welding costs, and affect production cycle time. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a structure for the stator wiring busbar of a power steering motor. This eliminates the need for copper busbars at three uprights, thereby eliminating three welding points, reducing material costs, decreasing welding points (from nine in the original structure to six in the current structure), and improving production efficiency.

[0005] In view of this, the present invention provides a structure for a power steering motor stator wiring busbar, characterized in that it includes: a busbar, a common copper busbar on the upper surface of the busbar, an enameled wire on the common copper busbar, the enameled wire being arranged through a path set by the common copper busbar, three columns on opposite sides of the common copper busbar, and symmetrical slots on the columns, with a limiting mechanism for reinforcing and limiting the enameled wire in the slots.

[0006] In the above technical solution, there are 6 common copper busbars and 12 enameled wires. One end of six enameled wires is connected to the common conductive strip within the copper busbar structure by welding, and one end of the other six enameled wires is connected to three columns.

[0007] In this technical solution, the required six enameled wires are soldered to the same common copper busbar, and then another six enameled wires are arranged through a set path and finally directly inserted into the slot of the column to achieve connection with the external electrical control part. Compared with the existing technical solution, the copper busbars at three columns are eliminated, and the design of the enameled wire path and the structure of the slot are increased, thereby reducing material costs, reducing welding points (the original structure has 9 welding points, and the current structure has 6 welding points), increasing production efficiency and eliminating welding risks.

[0008] Furthermore, the above technical solution also includes: a plurality of single-lobed stator cores, which are joined together and welded to form a stator winding, and the enameled wire is wound around the single-lobed stator cores.

[0009] In the above technical solution, the column material is further described as plastic.

[0010] In this technical solution, plastic, as a widely used material, has a relatively low production cost. Replacing the material of the column with plastic instead of traditional metals (such as copper and aluminum) can significantly reduce material costs, thereby further reducing the manufacturing cost of the entire power steering motor stator wiring busbar structure. Plastic materials generally have good insulation properties, which means that using plastic columns can effectively isolate current and prevent safety hazards such as current leakage or short circuits.

[0011] In the above technical solution, the limiting mechanism further includes: a U-shaped block, the U-shaped block being engaged in a slot, the inner ring of the U-shaped block having a plurality of sliding grooves, an adjusting block sliding in the sliding groove, a compression spring being fixedly connected to one end of the adjusting block near the sliding groove, the other end of the compression spring being fixedly connected to the bottom of the sliding groove, and a U-shaped rubber ring being connected to the outer ends of the plurality of adjusting blocks.

[0012] In this technical solution, a compression spring is fixedly connected to one end of the adjusting block near the slide groove, and the other end of the compression spring is fixedly connected to the bottom of the slide groove. When the enameled wire is subjected to external force, the compression spring can absorb and buffer part of the impact force, thereby protecting the enameled wire from damage. In addition, the elasticity of the compression spring can also make the adjusting block and the U-shaped rubber ring fit the enameled wire better, improving the limiting effect, thereby ensuring the stability and reliability of the motor stator wiring busbar structure.

[0013] In the above technical solution, the engaging structure further includes: a U-shaped groove, the U-shaped groove being disposed at the top of the column, the inner wall of the U-shaped groove being provided with a plurality of engaging grooves, and the outer wall of the U-shaped block being provided with engaging balls corresponding to the engaging grooves.

[0014] In this technical solution, a U-shaped groove is located at the top of the column, providing a stable mounting position for the U-shaped block. Several engaging grooves on the inner wall of the U-shaped groove correspond to engaging balls on the outer wall of the U-shaped block. When the U-shaped block is inserted into the U-shaped groove, the engaging balls engage with the grooves, forming a secure connection. This design ensures the stability and reliability of the U-shaped block on the column, preventing loosening or detachment due to vibration or external forces.

[0015] The beneficial effects of this utility model are:

[0016] 1. The required 6 enameled wires are soldered to the same common copper busbar. Then, another 6 enameled wires are arranged through a set path and finally directly inserted into the slot of the column to achieve connection with the external electrical control part. Compared with the existing technical solution, the copper busbars at 3 columns are eliminated, and the design of the enameled wire path and the structure of the slot are increased, thereby reducing material costs, reducing welding points (9 welding points in the original structure, 6 welding points in the current structure), increasing production efficiency and eliminating welding risks.

[0017] 2. A compression spring is fixedly connected to one end of the adjusting block near the slide groove, and the other end of the compression spring is fixedly connected to the bottom of the slide groove. When the enameled wire is subjected to external force, the compression spring can absorb and buffer part of the impact force, thereby protecting the enameled wire from damage. In addition, the elasticity of the compression spring can also make the adjusting block and the U-shaped rubber ring fit the enameled wire better, improving the limiting effect, thus ensuring the stability and reliability of the motor stator wiring busbar structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the busbar for the stator wiring of a power steering motor according to this utility model;

[0019] Figure 2 This is an exploded view of the busbar structure of the stator wiring busbar of a power steering motor according to this utility model.

[0020] Figure 3 This utility model relates to a structure for the stator wiring busbar of a power steering motor. Figure 2 Enlarged view of point A;

[0021] Figure 4 This is a cross-sectional view of the structural limiting mechanism of the stator wiring busbar of a power steering motor according to this utility model;

[0022] Figure 5This utility model describes the stator assembly after the completion of the stator wiring busbar structure of a power steering motor.

[0023] Figure 6 This is a schematic diagram of the structure of the busbar for the stator wiring of a power steering motor according to the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the stator wiring busbar of a power steering motor according to the present invention and the structure of the stator winding in the prior art;

[0025] Figure 8 This utility model relates to the structure of the stator wiring busbar of a power steering motor, and is an example of the stator assembly after assembly in the prior art.

[0026] The markings in the diagram are as follows:

[0027] 1. Busbar; 2. Common copper busbar; 3. Common conductive strip; 4. Post; 5. Slot; 6. Limiting mechanism; 601. U-shaped block; 602. Engaging structure; 6021. U-shaped groove; 6022. Engaging groove; 6023. Engaging ball; 603. U-shaped rubber ring; 604. Slide groove; 605. Adjusting block; 606. Compression spring; 7. Stator winding; 8. Enamelled wire. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0029] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0030] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0031] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0032] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0033] Example 1:

[0034] Depend on Figure 1-8As shown, this embodiment provides a structure for a power steering motor stator wiring busbar, including: a busbar 1, a common copper busbar 2 on the upper surface of the busbar 1, an enameled wire 8 on the common copper busbar 2, the enameled wire 8 being arranged along a path defined by the common copper busbar 2, three posts 4 on opposite sides of the common copper busbar 2, and symmetrical slots 5 on the posts 4, with a limiting mechanism 6 within the slots 5 for reinforcing and limiting the enameled wire 8. It also includes: several single-lobed stator cores, which are welded together to form a stator winding 7, with the enameled wire 8 wound around the single-lobed stator cores.

[0035] Furthermore, there are 6 common copper busbars and 12 enameled wires 8. One end of six enameled wires 8 is connected to the common conductive strip 3 within the copper busbar structure by welding, and one end of the other six enameled wires 8 is connected to three columns 4.

[0036] In this technical solution, the required 6 enameled wires 8 are soldered to the same common copper busbar 2, and then another 6 enameled wires 8 are arranged through a set path and finally directly inserted into the slot 5 of the column 4 to achieve connection with the external electrical control part. Compared with the existing technical solution, the copper busbars at 3 columns 4 are eliminated, and the design of the enameled wire path 8 and the structure of the slot 5 are increased, thereby reducing material costs, reducing welding points (the original structure has 9 welding points, the current structure has 6 welding points), increasing production efficiency and eliminating welding risks.

[0037] Furthermore, the support column 4 is made of plastic. Plastic is a widely used material with relatively low production costs. Replacing the material of the support column 4 with traditional metals (such as copper and aluminum) can significantly reduce material costs, thereby further reducing the manufacturing cost of the entire power steering motor stator wiring busbar structure. Plastic materials typically have good insulation properties, meaning that using a plastic support column 4 can effectively isolate current and prevent safety hazards such as current leakage or short circuits.

[0038] Furthermore, the limiting mechanism 6 includes: a U-shaped block 601, which is engaged in the slot 5 via a locking structure 602. The inner ring of the U-shaped block 601 has several sliding grooves 604. Adjusting blocks 605 slide within the sliding grooves 604. A compression spring 606 is fixedly connected to one end of each adjusting block 605 near the sliding groove 604, and the other end of the compression spring 606 is fixedly connected to the bottom of the sliding groove 604. A U-shaped rubber ring 603 is connected to the outer ends of the multiple adjusting blocks 605. When the enameled wire 8 is subjected to external force, the compression spring 606 can absorb and buffer part of the impact force, thereby protecting the enameled wire 8 from damage. In addition, the elasticity of the compression spring 606 allows the adjusting block 605 and the U-shaped rubber ring 603 to better fit the enameled wire 8, improving the limiting effect and thus ensuring the stability and reliability of the motor stator wiring busbar structure.

[0039] Furthermore, the engaging structure 602 includes a U-shaped groove 6021 located at the top of the column 4. The inner wall of the U-shaped groove 6021 has several engaging grooves 6022, and the outer wall of the U-shaped block 601 has engaging balls (6023) corresponding to the engaging grooves 6022. The U-shaped groove 6021, located at the top of the column 4, provides a stable mounting position for the U-shaped block 601. The several engaging grooves 6022 on the inner wall of the U-shaped groove 6021 correspond to the engaging balls (6023) on the outer wall of the U-shaped block 601. When the U-shaped block 601 is inserted into the U-shaped groove 6021, the engaging balls (6023) engage within the engaging grooves 6022, forming a secure connection. This design ensures the stability and reliability of the U-shaped block 601 on the column 4, preventing loosening or detachment due to vibration or external forces.

[0040] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A structure for a power steering motor stator wiring busbar, characterized in that, include: Busbar (1), the upper surface of the busbar (1) is provided with a common copper busbar (2), the common copper busbar (2) is provided with an enameled wire (8), the enameled wire (8) is arranged through the path set by the common copper busbar (2), the common copper busbar (2) is provided with 3 columns (4) on opposite sides, the columns (4) are also symmetrically provided with slots (5), the slots (5) are provided with a limiting mechanism (6) for reinforcing and limiting the enameled wire (8).

2. The structure of the stator wiring busbar of the power steering motor according to claim 1, characterized in that: There are 6 public copper busbars and 12 enameled wires (8). One end of six enameled wires (8) is connected to the public conductive strip (3) in the copper busbar structure by welding, and one end of the other six enameled wires (8) is connected to three columns (4).

3. The structure of the stator wiring busbar of the power steering motor according to claim 1, characterized in that: Also includes: Several single-lobed stator cores are joined together and welded to form a stator winding (7), and the enameled wire (8) is wound around the single-lobed stator cores.

4. The structure of the stator wiring busbar of the power steering motor according to claim 1, characterized in that: The column (4) is made of plastic.

5. The structure of the stator wiring busbar of the power steering motor according to claim 1, characterized in that: The limiting mechanism (6) includes: a U-shaped block (601), which is engaged in the slot (5) by a locking structure (602). The U-shaped block (601) has several sliding grooves (604) in its inner ring. An adjusting block (605) slides in the sliding groove (604). A compression spring (606) is fixedly connected to one end of the adjusting block (605) near the sliding groove (604). The other end of the compression spring (606) is fixedly connected to the bottom of the sliding groove (604). A U-shaped rubber ring (603) is connected to the outer ends of the multiple adjusting blocks (605).

6. The structure of the stator wiring busbar of the power steering motor according to claim 5, characterized in that: The engaging structure (602) includes: a U-shaped groove (6021), the U-shaped groove (6021) is located at the top of the column (4), the inner wall of the U-shaped groove (6021) is provided with a plurality of engaging grooves (6022), and the outer wall of the U-shaped block (601) is provided with engaging balls (6023) corresponding to the engaging grooves (6022).

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