A filter and power equipment

Abstract

This application discloses a filter and power device, belonging to the field of power electronics technology. The filter includes: a terminal block with a first groove on one side and a second and third groove connected to each other on the side opposite to the first groove; a first magnetic ring placed in the first groove; a second magnetic ring placed in the second groove; and a filter assembly, at least partially placed in the third groove, with the filter assembly located between the first and second magnetic rings. Thus, this application achieves a high degree of integration of the first magnetic ring, the second magnetic ring, and the filter assembly through the terminal block, simplifying the filter structure, reducing the space occupied by the filter, making the filter layout more compact, and the arrangement between the various structures more reasonable. It fully utilizes the internal space of the terminal block, achieving a tight connection between the various structures within a limited space, effectively reducing the overall size of the filter and the overall volume occupied by the filter.

Description

Technical Field

[0001] This application belongs to the field of power electronics technology, specifically relating to a filter and power equipment. Background Technology

[0002] Filters can effectively remove interference such as ripple and noise from power supplies, ensuring a smooth and stable output current. Related filters mainly consist of terminal blocks and filter structures.

[0003] However, some substructures in the filter structure are complex and occupy a large amount of space. Utility Model Content

[0004] Purpose of this application: This application provides a filter to solve the problems of complex filter structure and large space occupation; this application also provides a power device.

[0005] Technical solution: This application provides a filter, including:

[0006] The terminal block has a first groove on one side and a second and third groove connected to each other on the side opposite to the first groove.

[0007] The first magnetic ring is placed in the first groove;

[0008] The second magnetic ring is placed in the second groove;

[0009] The filter component is at least partially placed in the third groove, and the filter component is located between the first magnetic ring and the second magnetic ring.

[0010] In some embodiments, the bottom wall of the second groove is provided with at least one limiting member, which passes through the second magnetic ring.

[0011] In some embodiments, the filtering component includes:

[0012] The main body is disposed against the side wall of the third groove;

[0013] The capacitor bank is disposed on the side of the body opposite to the sidewall of the third groove.

[0014] In some embodiments, it also includes:

[0015] A copper busbar assembly is inserted through the terminal block and through the first magnetic ring, the filter assembly, and the second magnetic ring.

[0016] In some embodiments, the body has a first conductive area facing the sidewall of the third groove, the first conductive area being electrically connected between the capacitor bank and the copper busbar assembly.

[0017] In some embodiments, the terminal block has a first through hole and a second through hole communicating between the first groove and the second groove, and the copper busbar assembly includes a first copper busbar and a second copper busbar, the first copper busbar passing through the first through hole and the second copper busbar passing through the second through hole.

[0018] In some embodiments, the third groove is formed on the bottom wall of the second groove, and the side wall of the third groove is formed with a fourth groove and a fifth groove at intervals. The first copper busbar is embedded in the fourth groove, and the second copper busbar is embedded in the fifth groove.

[0019] In some embodiments, a sixth groove is formed on the bottom wall of the third groove;

[0020] The capacitor bank includes a first capacitor, a second capacitor, and a third capacitor. The first capacitor is disposed between the second capacitor and the third capacitor, and is placed in the sixth groove.

[0021] In some embodiments, the terminal block has a plurality of first fixing holes, and the terminal block further includes a conductive element, which is embedded in the first fixing holes;

[0022] The body has a plurality of second fixing holes corresponding to the first fixing hole. The body has a second conductive area around the edge of the second fixing hole. The second capacitor and the third capacitor are electrically connected to the conductive component through the second conductive area.

[0023] Accordingly, embodiments of this application also provide a power device including a filter as described in any of the above.

[0024] Compared with related technologies, the filter provided in this application includes: a terminal block with a first groove on one side and a second and third groove connected to each other on the side opposite to the first groove; a first magnetic ring placed in the first groove; a second magnetic ring placed in the second groove; and a filter component, at least partially placed in the third groove, with the filter component located between the first and second magnetic rings. Thus, this application achieves a high degree of integration of the first magnetic ring, the second magnetic ring, and the filter component through the terminal block, simplifying the filter structure, reducing the space occupied by the filter, making the filter layout more compact, and the arrangement between the various structures more reasonable. It fully utilizes the internal space of the terminal block, achieving a tight connection between the various structures within a limited space, effectively reducing the overall size of the filter and the overall space occupied by the filter.

[0025] It is understood that, compared with related technologies, the power equipment provided in this application embodiment includes all the technical features and effects of the above-mentioned filter, and will not be repeated here. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the filter structure from one perspective provided in an embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the filter structure from another perspective, provided in an embodiment of this application.

[0029] Figure 3 This is an exploded view of the filter provided in an embodiment of this application;

[0030] Figure 4 This is a schematic diagram of the structure of the terminal block in the filter provided in an embodiment of this application from one perspective;

[0031] Figure 5 This is a schematic diagram of the terminal block in the filter provided in an embodiment of this application from another perspective;

[0032] Figure 6 This is a schematic diagram of the structure of the filter component in the filter provided in the embodiments of this application;

[0033] Figure 7 A front view of the filter provided in an embodiment of this application;

[0034] Figure 8 for Figure 7 A partial cross-sectional diagram of AA;

[0035] Figure 9 for Figure 7 A cross-sectional schematic diagram of another part of AA.

[0036] Explanation of reference numerals in the attached figures:

[0037] 10-Connector; 11-First groove; 12-Second groove; 121-Side wall; 122-Bottom wall; 13-Third groove; 131-Fourth groove; 132-Fifth groove; 133-Sixth groove; 14-Limiting element; 15-First through hole; 151-Connecting part; 152-Card-slotting part; 16-Second through hole; 17-First fixing hole; 18-Conductive element; 20-First magnetic ring; 30-Second magnetic ring; 31-Inner wall ; 32-Bottom surface; 33-Outer surface; 40-Filter component; 41-Body; 411-First conductive area; 412-Second fixing hole; 413-Second conductive area; 42-Capacitor group; 421-First capacitor; 422-Second capacitor; 423-Third capacitor; 50-Copper busbar assembly; 51-First copper busbar; 511-Guide part; 512-Bending part; 513-First end; 514-Second end; 52-Second copper busbar. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0039] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. In the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0040] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of exemplary embodiments and may not be to scale. The modules or processes shown in the drawings are not necessarily essential for implementing this application and therefore should not be used to limit the scope of protection of this application.

[0041] The applicant discovered that some substructures in the filter structure require injection molding, resulting in a complex filter structure and a large space occupation.

[0042] In view of this, this application provides a filter to solve at least part of the above-mentioned technical problems.

[0043] Please see Figures 1 to 3 , Figure 1 A schematic diagram of the filter structure from one perspective provided in an embodiment of this application; Figure 2 This is a schematic diagram of the filter structure from another perspective, provided in an embodiment of this application. Figure 3 This is an exploded view of the filter provided in an embodiment of this application. The embodiment of this application provides a filter, including: a terminal block 10, a first magnetic ring 20, a second magnetic ring 30, and a filter assembly 40. The terminal block 10 has a first groove 11 on one side, and a second groove 12 and a third groove 13 connected to each other on the side of the terminal block 10 opposite to the first groove 11. The first magnetic ring 20 is placed in the first groove 11; the second magnetic ring 30 is placed in the second groove 12; at least a portion of the filter assembly 40 is placed in the third groove 13, and the filter assembly 40 is located between the first magnetic ring 20 and the second magnetic ring 30. Specifically, by providing the first groove 11, the second groove 12, and the third groove 13, this application integrates the first magnetic ring 20, the second magnetic ring 30, and the filter assembly 40 onto the terminal block 10, improving the filter's integration, reducing the space occupied by the filter, facilitating installation in space-constrained equipment, and optimizing the internal layout of the equipment. Furthermore, the filter structure of this application has fewer structural components, effectively reducing the complexity and number of mold development components, simplifying the assembly process, and reducing costs. Furthermore, without altering the terminal block 10, the first magnetic ring 20, the second magnetic ring 30, and the filter assembly 40 can be expanded or adjusted as needed, thereby flexibly optimizing filter performance and enhancing applicability to meet diverse application scenarios based on different electromagnetic interference environments and filtering requirements.

[0044] Please refer to it again. Figure 3 Please refer to the following: Figure 4 , Figure 4This is a schematic diagram of the terminal block in the filter provided in an embodiment of this application. In some embodiments, the bottom wall of the second groove 12 is provided with at least one limiting member 14. The limiting member 14 passes through the second magnetic ring 30 and fits against the inner wall 31 of the second magnetic ring 30, so that the second magnetic ring 30 is limited by the cooperation between the limiting member 14 and the side wall 121 of the second groove 12. Specifically, the second groove 12 is a stepped groove. The bottom wall 122 of the second groove 12 is used to support the bottom surface 32 of the second magnetic ring 30, and the side wall of the second groove 12 is used to support the outer surface 33 of the second magnetic ring 30. In this way, the stepped groove of the second groove 12 can accurately position the second magnetic ring 30 in the installation position. Combined with the limiting member 14, the fixing effect of the second magnetic ring 30 is further strengthened, preventing the second magnetic ring 30 from shifting or shaking in the second groove 12, improving the stability and reliability of the overall performance of the filter, and extending the service life of the filter. In addition, during the installation process, the second magnetic ring 30 can be placed quickly and accurately based on the second groove 12 and the limiting member 14, thereby improving assembly efficiency.

[0045] Please see Figure 6 , Figure 6 This is a schematic diagram of the structure of the filter component in the filter provided in an embodiment of this application. In some embodiments, the filter component 40 includes a body 41 and a capacitor bank 42. The body 41 is disposed against the side wall of the third groove 13; the capacitor bank 42 is disposed on the side of the body 41 opposite to the side wall of the third groove 13. Thus, by disposing the body 41 against the side wall of the third groove 13, the filter component 40 can be tightly embedded in the third groove 13 of the connector 10, enhancing the compactness and stability of the filter and preventing displacement or loosening of the filter component 40 during use. Furthermore, by disposing the capacitor bank 42 on the side of the body 41 opposite to the side wall of the third groove 13, the internal space of the filter can be fully utilized, while ensuring that the capacitor bank 42 can efficiently perform its filtering function, better cooperate with the first magnetic ring 20 and the second magnetic ring 30, improve the filtering effect on signals of different frequencies, and enhance the overall performance of the filter.

[0046] Please refer to it again. Figure 3In some embodiments, the filter further includes a copper busbar assembly 50, which passes through the terminal block 10 and through the first magnetic ring 20, the filter assembly 40, and the second magnetic ring 30. Specifically, this application places the copper busbar assembly 50 within the terminal block 10, making the filter structure more compact. It should be noted that the copper busbar assembly 50 has an installation direction, which is along the first magnetic ring 20 towards the second magnetic ring 30. During installation, the copper busbar assembly 50 passes sequentially through the first magnetic ring 20, the filter assembly 40, and the second magnetic ring 30 until it is fixed in place. Furthermore, passing the copper busbar assembly 50 sequentially through the first magnetic ring 20, the filter assembly 40, and the second magnetic ring 30 provides a low-resistance current path, reduces power loss during signal transmission, improves the filter's efficiency, ensures stable and efficient transmission of the current signal, and reduces signal distortion.

[0047] Please see Figure 5 , Figure 5 This is a schematic diagram of the terminal block in the filter provided in an embodiment of this application from another perspective. In some embodiments, the terminal block 10 has a first through hole 15 and a second through hole 16 communicating between the first groove 11 and the second groove 12. The copper busbar assembly 50 includes a first copper busbar 51 and a second copper busbar 52. The first copper busbar 51 passes through the first through hole 15, and the second copper busbar 52 passes through the second through hole 16. Thus, the first copper busbar 51 passing through the first through hole 15 and the second copper busbar 52 passing through the second through hole 16 makes the electrical connection between the first magnetic ring 20, the filter assembly 40, and the second magnetic ring 30 more precise and stable. Furthermore, the first copper busbar 51 and the second copper busbar 52 correspond to different paths, ensuring that the current transmission between each part does not interfere with each other, guaranteeing the filter's efficient processing of signals of different frequencies, and improving the filtering effect. Secondly, the first through hole 15 and the second through hole 16 provide precise positioning for the first copper busbar 51 and the second copper busbar 52, preventing the first copper busbar 51 and the second copper busbar 52 from shaking, further enhancing the stability of the filter and ensuring stable operation of the filter.

[0048] For further enhancement of stability, please refer to the following: Figures 7 to 9 , Figure 7 This illustration shows a front view of the filter provided in an embodiment of this application; Figure 8 It indicated Figure 7 A partial cross-sectional diagram of AA; Figure 9 It indicated Figure 7A cross-sectional schematic diagram of another part of AA. The first copper busbar 51 may be provided with a connecting guide portion 511 and a bending portion 512. The end of the guide portion 511 away from the bending portion 512 is the first end 513, and the end of the guide portion 511 closer to the bending portion 512 is the second end 514. Along the direction from the first end 513 to the second end 514, the thickness of the guide portion 511 gradually increases until it is the same as the thickness of the bending portion 512. Correspondingly, the shape of the hole wall of the first through hole 15 is also adaptively configured to include a connecting portion 151 and a locking portion 152. Because the first copper busbar 51 has a certain degree of flexibility, when the first copper busbar 51 passes through the first through hole 15, the guide part 511 first passes through the locking part 152, and then the bending part 512 begins to enter the locking part 152 until the bending part 512 is completely fitted with the locking part 152. At least a portion of the guide part 511 is fitted with the receiving part 151, thereby achieving a strong locking effect of the first through hole 15 on the first copper busbar 51 and preventing the first copper busbar 51 from shifting within the first through hole 15. The locking of the second copper busbar 52 and the second through hole 16 is similar to prevent the second copper busbar 52 from shifting within the second through hole 16. It can be understood that the first copper busbar 51 and the second copper busbar 52 can be configured as positive and negative copper busbars according to usage requirements. Furthermore, the first copper busbar 51 and the second copper busbar 52 can be connected to subsequent circuit structures, such as DC buses, by laser welding or bolt fastening.

[0049] Please refer to it again. Figure 4 In some embodiments, a third groove 13 is formed on the bottom wall of the second groove 12, and a fourth groove 131 and a fifth groove 132 are formed at intervals on the side wall of the third groove 13. The first copper busbar 51 is embedded in the fourth groove 131, and the second copper busbar 52 is embedded in the fifth groove 132. The third groove 13 can be a stepped groove. Thus, the fourth groove 131 and the fifth groove 132 provide precise positioning for the first copper busbar 51 and the second copper busbar 52, respectively, further reducing the risk of displacement of the first copper busbar 51 and the second copper busbar 52 due to external forces, enhancing the stability of the entire filter structure, and ensuring the efficient and reliable operation of the filter.

[0050] Please refer to it again. Figure 6In some embodiments, the body 41 has a first conductive region 411 on the sidewall facing the third groove 13. The first conductive region 411 is electrically connected between the capacitor bank 42 and the copper busbar assembly 50. Specifically, the first conductive region 411, as a key electrical connection point, achieves efficient electrical connection between the capacitor bank 42 and the copper busbar assembly 50. This ensures that the capacitor bank 42 can work more closely with the copper busbar assembly 50, allowing the filter to operate stably under different operating conditions, adapt to more complex electromagnetic environments, and improve the overall stability and reliability of the filter. It is understood that the number of first conductive regions 411 should be the same as the number of copper busbars in the copper busbar assembly 50. The two first conductive regions 411 are spaced apart to ensure that the copper busbars in the copper busbar assembly 50 are insulated from each other. For example, when the copper busbar assembly 50 includes a first copper busbar 51 and a second copper busbar 52, two first conductive areas 411 should be provided, one of which corresponds to the first copper busbar 51, so that the first copper busbar 51 is electrically connected to the capacitor group 42, the second copper busbar is electrically connected to the capacitor group 42, and the first copper busbar 51 and the second copper busbar 52 are insulated from each other.

[0051] Please refer to it again. Figure 4 In some embodiments, a sixth groove 133 is formed on the bottom wall of the third groove 13; the capacitor group 42 includes a first capacitor 421, a second capacitor 422, and a third capacitor 423, with the first capacitor 421 disposed between the second capacitor 422 and the third capacitor 423, and the first capacitor 421 placed in the sixth groove 133. It should be noted that in this application, the first capacitor 421 is preferably an X capacitor, and the second capacitor 422 and the third capacitor 423 are both preferably Y capacitors. In this embodiment, the sixth groove 133 is formed on the bottom wall of the third groove 13 to place the first capacitor 421, and it is placed between the second capacitor 422 and the third capacitor 423, making the capacitor group 42 compact and orderly, fully utilizing the internal space of the terminal block 10, and also helping to optimize the electric field distribution inside the filter and improve the filtering effect. Secondly, the sixth groove 133 provides precise positioning for the first capacitor 421, preventing the first capacitor 421 from shifting or shaking during operation, ensuring that the relative positions of the first capacitor 421, the second capacitor 422 and the third capacitor 423 are fixed, thereby ensuring the stable operation of the capacitor bank 42 and maintaining the stability of the filter performance.

[0052] Please refer to it again. Figure 5In some embodiments, the terminal block 10 has multiple first fixing holes 17, and the terminal block 10 also includes a conductive element 18, which is embedded in the first fixing holes 17. The body 41 has multiple second fixing holes 412 corresponding to the first fixing holes 17, and the body 41 has a second conductive area 413 around the edge of the second fixing holes 412. The second capacitor 422 and the third capacitor 423 are electrically connected to the conductive element 18 through the second conductive area 413. Thus, the conductive element 18 is embedded in the first fixing hole 17 and cooperates with the corresponding second fixing hole 412 on the body 41. The second capacitor 422 and the third capacitor 423 are electrically connected to the conductive element 18 through the second conductive area 413, and further electrically connected to the mounting post of the power equipment chassis, so that the second capacitor 422 and the third capacitor 423 are grounded to the chassis. It can be understood that the second conductive area 413 is provided on both sides of the body 41, thereby increasing the stability of the electrical connection between the second capacitor 422 and the third capacitor 423 and the conductive element 18 through the second conductive area 413.

[0053] In summary, this application provides a filter, including: a terminal block 10, a first magnetic ring 20, a second magnetic ring 30, and a filter assembly 40. The terminal block 10 has a first groove 11 on one side, and a second groove 12 and a third groove 13 connected to each other on the side opposite to the first groove 11. The first magnetic ring 20 is placed in the first groove 11; the second magnetic ring 30 is placed in the second groove 12; at least a portion of the filter assembly 40 is placed in the third groove 13, and the filter assembly 40 is located between the first magnetic ring 20 and the second magnetic ring 30. Thus, this application achieves a high degree of integration of the first magnetic ring 20, the second magnetic ring 30, and the filter assembly 40 through the terminal block 10, simplifying the filter structure, reducing the filter's footprint, making the filter layout more compact, and arranging the various structures more rationally. It fully utilizes the internal space of the terminal block 10, achieving a tight connection between the various structures within a limited space, effectively reducing the overall size of the filter and the overall volume occupied by the filter.

[0054] Accordingly, embodiments of this application also provide a power device, including the filter as described above.

[0055] It is understood that, compared with related technologies, the power equipment provided in this application embodiment includes all the technical features and effects of the above-mentioned filter, and will not be repeated here.

[0056] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0057] The filter and power device provided in the embodiments of this application have been described in detail above, and specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; 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.

Claims

1. A filter, characterized in that, include: The terminal block (10) has a first groove (11) on one side and a second groove (12) and a third groove (13) connected to each other on the side opposite to the first groove (11). The first magnetic ring (20) is placed in the first groove (11); The second magnetic ring (30) is placed in the second groove (12); The filter component (40) is at least partially placed in the third groove (13), and the filter component (40) is located between the first magnetic ring (20) and the second magnetic ring (30).

2. The filter according to claim 1, characterized in that, The bottom wall of the second groove (12) is provided with at least one limiting member (14), which is inserted into the second magnetic ring (30).

3. The filter according to claim 1, characterized in that, The filtering component (40) includes: The main body (41) is disposed against the side wall of the third groove (13); The capacitor bank (42) is disposed on the side of the body (41) away from the sidewall of the third groove (13).

4. The filter according to claim 3, characterized in that, Also includes: A copper busbar assembly (50) is inserted through the terminal block (10) and through the first magnetic ring (20), the filter assembly (40), and the second magnetic ring (30).

5. The filter according to claim 4, characterized in that, Facing the sidewall of the third groove (13), the body (41) is provided with a first conductive area (411), which is electrically connected between the capacitor group (42) and the copper busbar assembly (50).

6. The filter according to claim 4, characterized in that, The terminal block (10) has a first through hole (15) and a second through hole (16) connecting the first groove (11) and the second groove (12). The copper busbar assembly (50) includes a first copper busbar (51) and a second copper busbar (52). The first copper busbar (51) passes through the first through hole (15), and the second copper busbar (52) passes through the second through hole (16).

7. The filter according to claim 6, characterized in that, The third groove (13) is formed on the bottom wall of the second groove (12). The side wall of the third groove (13) is provided with a fourth groove (131) and a fifth groove (132) at intervals. The first copper busbar (51) is embedded in the fourth groove (131) and the second copper busbar (52) is embedded in the fifth groove (132).

8. The filter according to claim 3, characterized in that, The bottom wall of the third groove (13) is provided with a sixth groove (133); The capacitor group (42) includes a first capacitor (421), a second capacitor (422) and a third capacitor (423). The first capacitor (421) is disposed between the second capacitor (422) and the third capacitor (423), and the first capacitor (421) is placed in the sixth groove (133).

9. The filter according to claim 8, characterized in that, The terminal block (10) has a plurality of first fixing holes (17), and the terminal block (10) also includes a conductive element (18), which is embedded in the first fixing holes (17); The body (41) has a plurality of second fixing holes (412) corresponding to the first fixing hole (17). The body (41) has a second conductive area (413) around the edge of the second fixing hole (412). The second capacitor (422) and the third capacitor (423) are electrically connected to the conductive component (18) through the second conductive area (413).

10. An electrical device, characterized in that, Includes the filter as described in any one of claims 1 to 9.

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