Controller filters and vehicle generators

By designing a split-structure magnetic component and housing mounting section, the stability problem of automotive generator filters during assembly was solved, achieving the effects of simplified assembly and improved stability.

CN224289756UActive Publication Date: 2026-05-26CHONGQING SOKON POWER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING SOKON POWER CO LTD
Filing Date
2025-06-04
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

During assembly, the presence of copper busbars and nuts in existing automotive alternator filters prevents the magnetic ring from being stably fixed, affecting the stability of the device.

Method used

The magnetic component adopts a split structure, which forms a loop structure by assembling the first magnet and the second magnet. Combined with the conductive bar and the connecting nut, the nut is fixed by the mounting part of the housing, simplifying the assembly process.

Benefits of technology

This improves the assembly stability of the filter and the overall stability of the device, while reducing assembly difficulty and production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to the field of filter structures, and more particularly to a filter for a controller and a vehicle generator. The filter for the controller includes a housing, a magnetic component, and a connecting component. The magnetic component includes a first magnet and a second magnet. A first placement opening is provided on a first side of the housing, through which the first magnet is placed inside the housing. A second placement opening is provided on a second side of the housing, through which the second magnet is placed inside the housing. The first and second magnets located inside the housing are joined together to form a loop-shaped structure. The connecting component includes a conductive busbar and a connecting nut. The conductive busbar passes through the inner circle of the loop-shaped structure. The connecting nut is connected to the end of the conductive busbar. The housing includes a mounting portion, which is connected to the connecting nut. The mounting portion is offset from the first and second placement openings. This application makes it easier to install the magnetic component into the housing, simplifying the assembly process and reducing assembly difficulty. Furthermore, the housing can be equipped with a mounting portion to fix the nut, improving the stability of the device.
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Description

Technical Field

[0001] This application relates to the field of filter structures, and in particular to a filter for a controller and a vehicle generator. Background Technology

[0002] The controller of an automotive alternator is equipped with a filter, which is a key component of the automotive electrical system. Its core function is to suppress electromagnetic interference, stabilize power signals, protect electronic equipment, and improve system reliability.

[0003] The filter includes a housing, a magnetic ring, and a copper busbar. The copper busbar runs through the inner ring of the magnetic ring, and a nut is installed at the end of the copper busbar for connecting other components. During filter assembly, due to the presence of the copper busbar and nut, when the magnetic ring is fully inserted into the housing, the opening for placing the magnetic ring can only be located along the axial direction of the magnetic ring. The housing cannot have a mounting structure at the nut location to secure the nut, resulting in reduced stability of the device. Utility Model Content

[0004] The purpose of this application is to provide a filter for a controller and a vehicle generator that can fix the nut, improve the stability of the device, and not affect the installation of the magnetic ring.

[0005] This application provides a filter for a controller, including a housing, a magnetic component, and a connection component;

[0006] The magnetic component includes a first magnet and a second magnet; a first placement opening is provided on a first side of the housing, through which the first magnet is placed inside the housing; a second placement opening is provided on a second side of the housing, through which the second magnet is placed inside the housing; the first magnet and the second magnet located inside the housing are joined together to form a U-shaped structure;

[0007] The connecting assembly includes a conductive busbar and a connecting nut; the conductive busbar passes through the inner ring of the loop structure; the connecting nut is connected to the end of the conductive busbar; the housing includes a mounting part, which is connected to the connecting nut; the mounting part is offset from the first placement port and the second placement port.

[0008] In the above technical solution, the housing is further provided with a mounting surface, which is used to connect the controller body;

[0009] The first placement port and the second placement port are located on the remaining surfaces of the housing excluding the mounting surface;

[0010] The insertion direction of the first placement port is perpendicular to the axis of the loop structure; the insertion direction of the second placement port is perpendicular to the axis of the loop structure.

[0011] In the above technical solution, the first magnet is a cube, and the second magnet is a U-shaped block;

[0012] The opening of the second magnet is located at one end along the length of the second magnet, and the first magnet is located at the opening of the second magnet to close the opening; the edge of the first magnet is adapted to the edge of the second magnet.

[0013] In the above technical solution, the first side of the housing is provided with the first placement opening, and the first side is away from the mounting surface; the insertion direction of the first placement opening is the length direction of the first magnet;

[0014] The second side of the housing is provided with the second placement opening, and the second side is perpendicular to the mounting surface; the second placement opening is located in the direction away from the first magnet of the second magnet.

[0015] In the above technical solution, a limiting stop is further provided at the second placement port, and the limiting stop is engaged with the housing to block and limit the second magnet.

[0016] In the above technical solution, an adhesive layer is further provided between the first magnet and the housing; an adhesive layer is provided between the second magnet and the housing.

[0017] In the above technical solution, the housing further includes a first receiving portion and a second receiving portion, and the mounting portion, the first receiving portion and the second receiving portion are integrally formed;

[0018] The first receiving portion is provided with a first receiving cavity, and the first placement port and the second placement port are connected to the first receiving cavity;

[0019] The second receiving portion is located within the first receiving cavity, and the second receiving portion surrounds and forms a second receiving cavity; a portion of the conductive busbar is placed in the second receiving cavity.

[0020] In the above technical solution, the mounting part is further provided with a mounting hole, and the connecting nut is placed in the mounting hole;

[0021] A positioning edge is provided at the edge of the mounting hole, and the conductive busbar is installed on the positioning edge; the connecting nut passes through the positioning edge and is connected to the mounting hole.

[0022] The above technical solution further includes a grounding component;

[0023] The grounding assembly includes a first capacitor, a second capacitor, and a grounding element; the first capacitor is connected to the busbar.

[0024] The second capacitor is located between the first capacitor and the grounding component. One end of the second capacitor along its length is connected to the first capacitor, and the other end of the second capacitor along its length is connected to the grounding component.

[0025] This application also provides a vehicle generator, including the controller filter described in the above-described scheme.

[0026] Compared with the prior art, the beneficial effects of this application are as follows:

[0027] The filter for the controller provided in this application makes it easier to install the magnetic components into the housing by setting the magnetic components as a separate structure, which simplifies the assembly process and reduces the assembly difficulty; and the housing can be provided with a mounting part to fix the nut, which improves the stability of the device.

[0028] This application also provides a vehicle generator, including the controller filter described in the above-described scheme. Based on the above analysis, it is clear that the vehicle generator also possesses the aforementioned beneficial effects, which will not be elaborated upon further here. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 A first structural schematic diagram of the filter for the controller provided in this application;

[0031] Figure 2 A schematic diagram of the second structure of the filter for the controller provided in this application;

[0032] Figure 3 A schematic diagram of the shell structure provided in this application;

[0033] Figure 4 This is a schematic diagram of the third structure of the filter for the controller provided in this application.

[0034] In the diagram: 101-Housing; 102-Magnetic component; 103-First magnet; 104-Second magnet; 105-First placement port; 106-Second placement port; 107-Positive copper busbar; 108-Negative copper busbar; 109-Mounting part; 110-Limiting stop; 111-Snap-fit ​​protrusion; 112-Snap-fit ​​interface; 113-First receiving part; 114-Second receiving part; 115-Positioning edge; 116-First capacitor; 117-Second capacitor; 118-Grounding component. Detailed Implementation

[0035] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 application 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 application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] Example 1

[0039] See Figures 1 to 4 As shown, the filter for controllers provided in this application includes a housing 101, a magnetic component 102, and a connection component.

[0040] The magnetic component 102 includes a first magnet 103 and a second magnet 104; a first placement opening 105 is provided on the first side of the housing 101, through which the first magnet 103 is placed inside the housing 101; a second placement opening 106 is provided on the second side of the housing 101, through which the second magnet 104 is placed inside the housing 101; the first magnet 103 and the second magnet 104 located inside the housing 101 are assembled to form a loop-shaped structure.

[0041] The connecting assembly includes a conductive busbar and a connecting nut; the conductive busbar specifically includes a positive copper busbar 107 and a negative copper busbar 108, both of which pass through the inner ring of the loop structure; the ends of the positive copper busbar 107 and the negative copper busbar 108 are fitted with connecting nuts; the housing 101 includes a mounting part 109, which is connected to the connecting nut; the mounting part 109 is offset from the first placement port 105 and the second placement port 106.

[0042] Specifically, before assembling the filter, a housing 101 is injection molded around the connecting components. At this point, the mounting portion 109 of the housing 101 can be used to install and secure the connecting nut, increasing the stability of the device. Since the magnetic component 102 needs to be fitted around the circumference of the conductive busbar, when installing the magnetic component 102 into the housing 101, the first magnet 103 is inserted into the housing 101 through the first placement port 105, and the second magnet 104 is inserted into the housing 101 through the second placement port 106. This allows the first magnet 103 and the second magnet 104 to assemble and form a U-shaped structure within the housing 101, thereby surrounding the conductive busbar. This simplifies the assembly process, reduces assembly difficulty, improves production efficiency, and lowers manufacturing costs.

[0043] In an optional embodiment, the housing 101 is provided with a mounting surface for connecting the controller body; the first placement port 105 and the second placement port 106 are located on the remaining surfaces of the housing 101 excluding the mounting surface; the insertion direction of the first placement port 105 is perpendicular to the axis of the loop structure; the insertion direction of the second placement port 106 is perpendicular to the axis of the loop structure.

[0044] In this embodiment, the housing 101 is provided with a mounting surface for connecting to the controller body, thereby allowing the filter to be mounted and fixed. Figure 2 In the structure shown, the bottom surface of the housing 101 is the mounting surface. The first placement port 105 and the second placement port 106 are located on the remaining surfaces of the housing 101 excluding the mounting surface, thus not affecting the installation of the filter. The insertion direction of the first placement port 105 and the second placement port 106 is perpendicular to the axis of the loop structure, ensuring that the first placement port 105 and the second placement port 106 do not interfere with the mounting portion 109, and making it easier to insert the first magnet 103 and the second magnet 104 into the housing 101.

[0045] In the optional solutions of this embodiment, such as Figure 2 As shown, the first magnet 103 is a cube, and the second magnet 104 is a U-shaped block. The opening of the second magnet 104 is located at one end of the length direction of the second magnet 104. The first magnet 103 is located at the opening of the second magnet 104 to close the opening, and the edge of the first magnet 103 is adapted to the edge of the second magnet 104 so that the first magnet 103 and the second magnet 104 can be assembled to form a loop structure.

[0046] Optionally, both the first magnet 103 and the second magnet 104 are U-shaped blocks, and the openings of the first magnet 103 and the second magnet 104 are joined together to form a loop-shaped structure.

[0047] However, in the two solutions described above, in the first solution, the first magnet 103 is merely one side of the U-shaped structure, and its size is smaller than that of the second magnet 104. This reduces the size of the first placement opening 105 in the housing 101, thereby minimizing its impact on the strength of the housing 101. In the second solution, both the first magnet 103 and the second magnet 104 are U-shaped blocks, requiring both the first and second placement openings 105 and 106 to be larger to accommodate them within the housing 101.

[0048] In the optional solutions of this embodiment, such as Figure 2 As shown, a first placement opening 105 is provided on the first surface of the housing 101, and the first surface faces away from the mounting surface. The insertion direction of the first placement opening 105 is the length direction of the first magnet 103. The smaller plane enclosed by the thickness and width sides of the first magnet 103 is opposite to the first placement opening 105, which can reduce the size of the first placement opening 105. A second placement opening 106 is provided on the second surface of the housing 101, and the second surface is perpendicular to the mounting surface. The second placement opening 106 is located in the direction away from the first magnet 103 of the second magnet 104. The smaller plane enclosed by the thickness and width sides of the second magnet 104 is opposite to the second placement opening 106, which can reduce the size of the second placement opening 106.

[0049] In this embodiment, the mounting surface is used as the bottom surface of the housing 101, and the first placement opening 105 is provided on the top surface of the housing 101. The top surface of the housing 101 is also provided with a mounting post for connecting other components. The first placement opening 105 is small in size and located at the end away from the mounting post to prevent interference. The second placement opening 106 is provided on the side of the housing 101. The second magnet 104 can be placed inside the housing 101 by facing the opening of the second magnet 104 towards the second placement opening 106.

[0050] In an optional embodiment, a limiting stop 110 is provided at the second placement opening 106. The limiting stop 110 engages with the housing 101 to block and limit the movement of the second magnet 104. Specifically, the housing 101 has a snap-fit ​​protrusion 111 at the edge of the second placement opening 106, and the limiting stop 110 has a corresponding snap-fit ​​interface 112. The snap-fit ​​interface 112 is fastened around the snap-fit ​​protrusion 111 to fix the limiting stop 110. Furthermore, the limiting stop 110 is an elastic element and has an arc bending inward toward the inside of the housing 101 so that the limiting stop 110 can abut against the second magnet 104, thereby reliably fixing the second magnet 104 and ensuring a tight fit between the second magnet 104 and the first magnet 103.

[0051] In an optional embodiment, an adhesive layer is provided between the first magnet 103 and the housing 101. At least one side of the first magnet 103 is coated with adhesive to bond and fix the first magnet 103 to the inner wall of the housing 101. Optionally, an adhesive layer is provided between the first magnet 103 and the housing 101 in the direction facing the bottom surface of the housing 101. An adhesive layer is provided between the second magnet 104 and the housing 101. At least one side of the second magnet 104 is coated with adhesive to bond and fix the second magnet 104 to the inner wall of the housing 101. Optionally, an adhesive layer is provided between the second magnet 104 and the housing 101 in the direction facing the bottom surface of the housing 101.

[0052] In an optional embodiment, the housing 101 includes a first receiving portion 113 and a second receiving portion 114. The mounting portion 109, the first receiving portion 113, and the second receiving portion 114 are integrally injection molded. During the injection molding process, the copper busbar and the connecting nut are fixed first, and then the magnetic component 102 is placed into the injection-molded housing 101. The first receiving portion 113 is provided with a first receiving cavity, and a first placement port 105 and a second placement port 106 communicate with the first receiving cavity so that the first magnet 103 and the second magnet 104 can be placed into the first receiving cavity from the first placement port 105 and the second placement port 106, respectively. The second receiving portion 114 is located inside the first receiving cavity and surrounds the second receiving cavity. A portion of the conductive busbar is placed in the second receiving cavity, which can insulate the conductive busbar from the magnetic component 102.

[0053] In an optional embodiment, the mounting part 109 has a mounting hole formed by injection molding around the connecting nut to reliably fix the connecting nut. A positioning edge 115 is provided at the edge of the mounting hole, and the conductive bus is mounted on the positioning edge 115 to reliably fix the conductive bus. The connecting nut connected to the conductive bus can pass through the positioning edge 115 and connect to the mounting hole.

[0054] Example 2

[0055] The controller filter in this second embodiment is an improvement on the above embodiments. The technical content disclosed in the above embodiments will not be described again, and the content disclosed in the above embodiments also belongs to the content disclosed in this second embodiment.

[0056] See Figure 4 As shown, in an optional embodiment, the controller filter further includes a grounding component. The grounding component includes a first capacitor 116, a second capacitor 117, and a grounding element 118. Both the first capacitor 116 and the second capacitor 117 are filter capacitors. The first capacitor 116 is connected to a busbar; the second capacitor 117 is located between the first capacitor 116 and the grounding element 118, with one end of the second capacitor 117 connected to the first capacitor 116 along its length and the other end of the second capacitor 117 connected to the grounding element 118 along its length.

[0057] In this embodiment, in the prior art, the first capacitor 116 and the second capacitor 117 are far from the bus port of the grounding component 118, and their connection pins are long, resulting in poor filtering effect. To solve this problem, such as... Figure 4 As shown, in this application, the first capacitor 116 is placed horizontally, and its two ends are connected to the positive copper busbar 107 and the negative copper busbar 108, respectively. The two second capacitors 117 are placed vertically, so that the upper ends of the two second capacitors 117 are connected to the first capacitor 116 and the busbar, and the lower ends of the two second capacitors 117 are closer to the grounding component 118, thereby reducing the length of the connection pins and improving the filtering effect.

[0058] Example 3

[0059] Embodiment 3 of this application provides a vehicle generator, which includes a controller filter of any of the above embodiments. Therefore, it has all the beneficial technical effects of the controller filter of any of the above embodiments, which will not be repeated here.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application. In addition, those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are meant to be within the scope of this application and form different embodiments.

Claims

1. A filter for a controller, characterized in that, Includes housing, magnetic components, and connecting components; The magnetic component includes a first magnet and a second magnet; a first placement opening is provided on a first side of the housing, through which the first magnet is placed inside the housing; a second placement opening is provided on a second side of the housing, through which the second magnet is placed inside the housing; the first magnet and the second magnet located inside the housing are joined together to form a U-shaped structure; The connecting assembly includes a conductive busbar and a connecting nut; the conductive busbar passes through the inner ring of the loop structure; the connecting nut is connected to the end of the conductive busbar; the housing includes a mounting part, which is connected to the connecting nut; the mounting part is offset from the first placement port and the second placement port.

2. The filter for a controller according to claim 1, characterized in that, The housing is provided with a mounting surface, which is used to connect the controller body; The first placement port and the second placement port are located on the remaining surfaces of the housing excluding the mounting surface; The insertion direction of the first placement port is perpendicular to the axis of the loop structure; the insertion direction of the second placement port is perpendicular to the axis of the loop structure.

3. The filter for a controller according to claim 2, characterized in that, The first magnet is a cube, and the second magnet is a U-shaped block; The opening of the second magnet is located at one end along the length of the second magnet, and the first magnet is located at the opening of the second magnet to close the opening; the edge of the first magnet is adapted to the edge of the second magnet.

4. The filter for a controller according to claim 3, characterized in that, The first side of the housing is provided with the first placement opening, and the first side is opposite to the mounting surface; the insertion direction of the first placement opening is the length direction of the first magnet; The second side of the housing is provided with the second placement opening, and the second side is perpendicular to the mounting surface; the second placement opening is located in the direction away from the first magnet of the second magnet.

5. The filter for a controller according to claim 4, characterized in that, A limit stop is provided at the second placement opening, and the limit stop is engaged with the housing to block and limit the second magnet.

6. The filter for a controller according to claim 1, characterized in that, An adhesive layer is provided between the first magnet and the housing; an adhesive layer is provided between the second magnet and the housing.

7. The filter for a controller according to claim 1, characterized in that, The housing includes a first receiving portion and a second receiving portion, and the mounting portion, the first receiving portion and the second receiving portion are integrally formed; The first receiving portion is provided with a first receiving cavity, and the first placement port and the second placement port are connected to the first receiving cavity; The second receiving portion is located within the first receiving cavity, and the second receiving portion surrounds and forms a second receiving cavity; a portion of the conductive busbar is placed in the second receiving cavity.

8. The filter for a controller according to claim 1, characterized in that, The mounting part is provided with a mounting hole, and the connecting nut is placed in the mounting hole; A positioning edge is provided at the edge of the mounting hole, and the conductive busbar is installed on the positioning edge; the connecting nut passes through the positioning edge and is connected to the mounting hole.

9. The filter for a controller according to claim 1, characterized in that, It also includes grounding components; The grounding assembly includes a first capacitor, a second capacitor, and a grounding element; the first capacitor is connected to the busbar. The second capacitor is located between the first capacitor and the grounding component. One end of the second capacitor along its length is connected to the first capacitor, and the other end of the second capacitor along its length is connected to the grounding component.

10. A vehicle generator, characterized in that, Includes a controller filter as described in any one of claims 1 to 9.