A high voltage dc connector with magnetic ring

Abstract

The utility model relates to a kind of high-voltage direct-current connector with magnetic ring, including connector main body, X safety capacitor, Y safety capacitor, E-shaped magnetic ring, I-shaped magnetic ring, positive pole copper bar, negative pole copper bar, ground copper bar and installation slot, the X safety capacitor, Y safety capacitor, E-shaped magnetic ring, I-shaped magnetic ring and ground copper bar are all installed in installation slot, the installation slot is installed on connector main body, the positive pole copper bar and negative pole copper bar are installed on E-shaped magnetic ring, the X safety capacitor is respectively connected with positive pole copper bar and negative pole copper bar, the Y safety capacitor is respectively connected with ground copper bar and positive pole copper bar, the Y safety capacitor is respectively connected with ground copper bar and negative pole copper bar.E-shaped magnetic ring and I-shaped magnetic ring are set, positive pole copper bar, negative pole copper bar and insertion E-shaped magnetic ring are simultaneously, while improving anti-interference, the space of motor controller can be saved, the space of internal filter is reduced, smaller electric control volume, higher power density are realized.

Description

Technical Field

[0001] This utility model relates to the field of high voltage DC connector technology, and in particular to a high voltage DC connector with a magnetic ring. Background Technology

[0002] The motor controller is a core component in the design of electric and hybrid power systems, primarily responsible for DC-to-AC conversion and controlling motor torque and speed. In recent years, with market development, the switching frequency of motor controller power modules has been continuously increasing, while customer requirements for EMC (Electronic Mobility Compatibility) of motor controllers have also been rising, making the EMC issues of the entire controller system more prominent.

[0003] Currently, some high-voltage DC connectors with magnetic rings lack electromagnetic compatibility (EMC) capabilities, while others with magnetic rings only have their shielding layer grounded, resulting in limited EMC capabilities. To ensure good EMC capabilities (differential and common-mode interference), most controllers incorporate complex, multi-stage filter structures, occupying significant internal space and increasing material, manufacturing, and installation costs.

[0004] Utility model patent CN210123877U discloses a controller bus input device, including a fixed base, a positive copper busbar, a negative copper busbar, an X capacitor, and two Y capacitors. The positive copper busbar is mounted on the fixed base, the negative copper busbar is mounted on the fixed base, the X capacitor is mounted on the fixed base and its two terminals are respectively connected to the positive copper busbar and the negative copper busbar; and the two Y capacitors are mounted on the fixed base, wherein the two terminals of one Y capacitor are respectively connected to the positive copper busbar and the ground wire, and the two terminals of the other Y capacitor are respectively connected to the negative copper busbar and the ground wire. The positive and negative copper busbars of this patent are both straight sheets, resulting in a large overall volume, and there is still room for reduction in volume.

[0005] Therefore, providing a high-voltage DC connector with a magnetic ring that can improve electromagnetic compatibility and reduce size is an urgent problem to be solved. Utility Model Content

[0006] The purpose of this invention is to overcome the defects of the prior art and provide a high-voltage DC connector with a magnetic ring.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] According to one aspect of the present invention, a high-voltage DC connector with a magnetic ring is provided, comprising a connector body, an X-type safety capacitor, a Y-type safety capacitor, an E-shaped magnetic ring, an I-shaped magnetic ring, a positive copper busbar, a negative copper busbar, a grounding copper busbar, and a mounting slot. The X-type safety capacitor, the Y-type safety capacitor, the E-shaped magnetic ring, the I-shaped magnetic ring, and the grounding copper busbar are all mounted in the mounting slot, which is mounted on the connector body. The positive and negative copper busbars are mounted on the E-shaped magnetic ring. The X-type safety capacitor is connected to the positive and negative copper busbars respectively. The Y-type safety capacitor is connected to the grounding copper busbar and the positive copper busbar respectively.

[0009] As a preferred technical solution, the positive copper busbar, negative copper busbar and grounding copper busbar are all folded structures, and the cross-sections of the positive copper busbar, negative copper busbar and grounding copper busbar are all L-shaped.

[0010] As a preferred technical solution, the mounting slot includes an X-type safety capacitor mounting slot, a Y-type safety capacitor mounting slot, and a magnetic ring mounting slot. The X-type safety capacitor is installed in the X-type safety capacitor mounting slot, the Y-type safety capacitor is installed in the Y-type safety capacitor mounting slot, and the E-shaped magnetic ring and the I-shaped magnetic ring are installed in the magnetic ring mounting slot.

[0011] As a preferred technical solution, one end of the positive and negative copper busbars is inserted into the E-shaped magnetic ring, and the E-shaped magnetic ring and the I-shaped magnetic ring are in contact.

[0012] As a preferred technical solution, the connector further includes a connecting strip, which is connected to the positive copper busbar and the negative copper busbar respectively.

[0013] As a preferred technical solution, both the connecting strip and the grounding copper busbar include a connecting part, and the positive copper busbar, the negative copper busbar and the grounding copper busbar are respectively connected to the connecting part.

[0014] As a preferred technical solution, the connecting parts are located at both ends of the connecting strip.

[0015] As a preferred technical solution, the connector further includes a grounding bushing, which is mounted on the connector body.

[0016] As a preferred technical solution, the grounding bushing and the grounding copper busbar are connected.

[0017] As a preferred technical solution, the connector further includes a sealing ring, which is mounted on the connector body.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This utility model is equipped with an E-shaped magnetic ring and an I-shaped magnetic ring. The positive copper busbar and the negative copper busbar are inserted into the E-shaped magnetic ring. While improving anti-interference, it can save space in the motor controller, reduce the space of the internal filter, and achieve a smaller electronic control volume and higher power density.

[0020] 2. This utility model is equipped with a connecting strip, which is then connected to the positive copper busbar and the negative copper busbar, providing a way to connect X safety capacitors and Y safety capacitors over long distances, ensuring that the connection can be made without increasing the size.

[0021] 3. This utility model sets the positive copper busbar, negative copper busbar and grounding copper busbar as L-shaped flap structures, which fits the connector better, reduces the overall size of the connector, reduces the design complexity of the internal structure and the investment in early research and development, and saves costs.

[0022] 4. This utility model directly welds the safety capacitor to the copper busbar, eliminating the need to weld the capacitor to the printed circuit board and then tighten it with screws. Attached Figure Description

[0023] Figure 1 This is an exploded view of the present invention;

[0024] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the rear structure of the present invention;

[0026] Figure 4 This is a top view of the present invention;

[0027] Figure 5 This is a cross-sectional view of the present invention AA;

[0028] Figure 6 This is a schematic diagram showing the structure of this utility model.

[0029] 1. Connector body, 2. X safety capacitor, 3. Y safety capacitor, 4. Sealing ring, 5. E-shaped magnetic ring, 6. I-shaped magnetic ring, 7. Electrical control housing, 8. Fastening screw, 11. Positive copper busbar, 12. Negative copper busbar, 13. Grounding copper busbar, 14. Grounding bushing. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.

[0031] Example 1

[0032] like Figures 1-6 As shown, a high-voltage DC connector with a magnetic ring includes a connector body 1, an X-type safety capacitor 2, a Y-type safety capacitor 3, an E-shaped magnetic ring 5, an I-shaped magnetic ring 6, a positive copper busbar 11, a negative copper busbar 12, a grounding copper busbar 13, and a mounting slot. The X-type safety capacitor 2, the Y-type safety capacitor 3, the E-type magnetic ring 5, the I-type magnetic ring 6, and the grounding copper busbar 13 are all installed in the mounting slot, which is mounted on the connector body 1. The positive copper busbar 11 and the negative copper busbar 12 are mounted on the E-type magnetic ring 5. The X-type safety capacitor 2 is connected to both the positive and negative copper busbars 11 and 12, respectively. The Y-type safety capacitor 3 is connected to both the grounding copper busbar 13 and the positive copper busbar 11, respectively.

[0033] In this embodiment, the present invention comprises a high-voltage DC connector body 1, an X-type safety capacitor 2, a Y-type safety capacitor 3, a sealing ring 4, an E-shaped magnetic ring 5, and an I-type magnetic ring 6. The high-voltage connector body 1 is an integral injection-molded structure, specifically including a positive copper busbar 11, a negative copper busbar 12, a grounding copper plate 13, and a grounding screw bushing 14. The X-type safety capacitor 2 and the Y-type safety capacitor 3 are installed in the mounting slots of the high-voltage DC connector. The pins of the X-type safety capacitor 2 are soldered to the positive copper busbar 11 and the negative copper busbar 12, respectively. The present invention includes two Y-type safety capacitors 3. The two pins of one Y-type safety capacitor 3 are soldered to the positive copper busbar 11 and the grounding copper busbar 13, respectively. The two pins of one Y-type safety capacitor 3 are soldered to the negative copper busbar 12 and the grounding copper busbar 13, respectively. Soldering slots are provided at the soldering points of the positive copper busbar 11, the negative copper busbar 12, and the grounding copper busbar 13. E-shaped magnetic ring 5 is inserted into the slot of the high-voltage connector body from above, and I-shaped magnetic ring 6 is inserted from the left side, respectively wrapping the positive copper busbar 11 and the negative copper busbar 12.

[0034] After the X-safety capacitor 2 and Y-safety capacitor 3 are installed on the high-voltage connector body and soldered, they are then fixed with adhesive.

[0035] The positive copper busbar 11, negative copper busbar 12 and grounding copper busbar 13 are all of folded structure, and the cross-section of the positive copper busbar 11, negative copper busbar 12 and grounding copper busbar 13 is L-shaped.

[0036] The mounting slots include an X-type safety capacitor mounting slot, a Y-type safety capacitor mounting slot, and a magnetic ring mounting slot. The X-type safety capacitor 2 is installed in the X-type safety capacitor mounting slot, the Y-type safety capacitor 3 is installed in the Y-type safety capacitor mounting slot, and the E-shaped magnetic ring 5 and the I-shaped magnetic ring 6 are installed in the magnetic ring mounting slot.

[0037] One end of the positive copper busbar 11 and the negative copper busbar 12 is inserted into the E-shaped magnetic ring 5, and the E-shaped magnetic ring 5 is in contact with the I-shaped magnetic ring 6.

[0038] In this embodiment, the positive copper busbar 11 and the negative copper busbar 12 are respectively installed on both sides of the X safety capacitor mounting slot, and the grounding copper busbar 13 is installed on both sides of the Y safety capacitor mounting slot. The X safety capacitor 2 and the Y safety capacitor 3 are perpendicular to each other.

[0039] The connector also includes a connecting strip, which is connected to the positive copper busbar 11 and the negative copper busbar 12 respectively.

[0040] Both the connecting strip and the grounding copper busbar 13 include connecting portions, and the positive copper busbar 11, negative copper busbar 12, and grounding copper busbar 13 are respectively connected to the connecting portions. The connecting portions are located at both ends of the connecting strip.

[0041] In this embodiment, the connecting strip acts as a bridge, which indirectly expands the width of the positive copper busbar 11 and the negative copper busbar 12. Even if there is an E-shaped magnetic ring 5 and an I-shaped magnetic ring 6 between the X safety capacitor 2 and the Y safety capacitor 3, the X safety capacitor 2 and the Y safety capacitor 3 can still be connected to the positive copper busbar 11 and the negative copper busbar 12, which improves the flexibility of the design.

[0042] The connector also includes a grounding bushing 14, which is mounted on the connector body 1. The grounding bushing 14 is connected to the grounding copper busbar 13.

[0043] The connector also includes a sealing ring 4, which is mounted on the connector body 1.

[0044] In this embodiment, the functions of each component are as follows:

[0045] Connector body 1: Ensures energy transfer, transmitting electrical energy back and forth between the electronic control unit and the battery pack.

[0046] X-Safety Capacitor 2: A capacitor connected between the positive and negative terminals to suppress differential mode interference.

[0047] Y-safety capacitor 3: Y-safety capacitors are capacitors that are connected across the positive and negative terminals and ground respectively. They usually appear in pairs to suppress common-mode interference.

[0048] Positive copper busbar 11: Transmits positive current.

[0049] Negative copper busbar 12: Transmits negative current.

[0050] Grounding screw bushing 14: When the screw is tightened, the surface of the bushing contacts the housing, thereby grounding.

[0051] Grounding copper busbar 13: connected to the grounding bushing, thereby grounding.

[0052] Sealing ring 4: Ensures a seal between the connector and the electrical control housing.

[0053] EI magnetic rings: commonly used anti-interference components in electronic circuits, which have a good suppression effect on high-frequency noise, and are generally made of ferrite materials.

[0054] The aforementioned high-voltage connector is installed at the DC input of the motor controller housing. The positive and negative copper busbars enable DC transmission, and the sealing rings provide a seal. Safety capacitor 2 (X) is connected to the positive and negative copper busbars via pin soldering, suppressing differential-mode interference during electrical control operation. Safety capacitor 3 (Y) is connected to the positive / ground copper busbar and the negative / ground copper busbar via pin soldering, suppressing common-mode interference during electrical control operation. The EI magnetic ring suppresses high-frequency differential-mode and common-mode noise, improving the signal-to-noise ratio of the circuit and thus enhancing the electromagnetic compatibility of the entire system.

[0055] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A high-voltage DC connector with a magnetic ring, characterized in that, The connector includes a connector body (1), an X-type safety capacitor (2), a Y-type safety capacitor (3), an E-shaped magnetic ring (5), an I-shaped magnetic ring (6), a positive copper busbar (11), a negative copper busbar (12), a grounding copper busbar (13), and a mounting slot. The X-type safety capacitor (2), the Y-type safety capacitor (3), the E-type magnetic ring (5), the I-shaped magnetic ring (6), and the grounding copper busbar (13) are all installed in the mounting slot. The mounting slot is installed on the connector body (1). The positive copper busbar (11) and the negative copper busbar (12) are installed on the E-type magnetic ring (5). The X-type safety capacitor (2) is connected to the positive copper busbar (11) and the negative copper busbar (12) respectively. The Y-type safety capacitor (3) is connected to the grounding copper busbar (13) and the positive copper busbar (11) respectively. The Y-type safety capacitor (3) is connected to the grounding copper busbar (13) and the negative copper busbar (12) respectively.

2. A high-voltage DC connector with a magnetic ring according to claim 1, characterized in that, The positive copper busbar (11), negative copper busbar (12) and grounding copper busbar (13) are all folded structures, and the cross-sections of the positive copper busbar (11), negative copper busbar (12) and grounding copper busbar (13) are all L-shaped.

3. A high-voltage DC connector with a magnetic ring according to claim 1, characterized in that, The mounting slots include an X-type safety capacitor mounting slot, a Y-type safety capacitor mounting slot, and a magnetic ring mounting slot. The X-type safety capacitor (2) is installed in the X-type safety capacitor mounting slot, the Y-type safety capacitor (3) is installed in the Y-type safety capacitor mounting slot, and the E-shaped magnetic ring (5) and the I-shaped magnetic ring (6) are installed in the magnetic ring mounting slot.

4. A high-voltage DC connector with a magnetic ring according to claim 3, characterized in that, One end of the positive copper busbar (11) and the negative copper busbar (12) is inserted into the E-shaped magnetic ring (5), and the E-shaped magnetic ring (5) and the I-shaped magnetic ring (6) are in contact.

5. A high-voltage DC connector with a magnetic ring according to claim 1, characterized in that, The connector also includes a connecting strip, which is connected to the positive copper busbar (11) and the negative copper busbar (12) respectively.

6. A high-voltage DC connector with a magnetic ring according to claim 5, characterized in that, The connecting strip and the grounding copper busbar (13) both include a connecting part, and the positive copper busbar (11), negative copper busbar (12) and grounding copper busbar (13) are respectively connected to the connecting part.

7. A high-voltage DC connector with a magnetic ring according to claim 6, characterized in that, The connecting parts are located at both ends of the connecting strip.

8. A high-voltage DC connector with a magnetic ring according to claim 1, characterized in that, The connector also includes a grounding bushing (14) which is mounted on the connector body (1).

9. A high-voltage DC connector with a magnetic ring according to claim 8, characterized in that, The grounding bushing (14) and the grounding copper busbar (13) are connected.

10. A high-voltage DC connector with a magnetic ring according to claim 1, characterized in that, The connector also includes a sealing ring (4), which is mounted on the connector body (1).

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