Low-voltage connector shielding assembly and low-voltage connector assembly

Abstract

The utility model discloses a low-voltage connector shielding assembly, which comprises a first shielding case, a second shielding case and a first shell, the first shielding case is used for covering the upper part of a PCBA (Printed Circuit Board Assembly), and the second shielding case is used for covering the lower part of the PCBA and is used for sleeving the outer part of a low-voltage connector. The first shell is used for being arranged outside the low-voltage connector in a sleeving mode and located below the second shielding cover. The utility model also discloses a low-voltage plugging assembly. According to the utility model, the first shielding case and the second shielding case are respectively arranged above and below the PCBA board, so that the shielding effect on the PCBA board is enhanced. Meanwhile, the second shielding cover and the first shell cover the low-voltage connector, so that the shielding effect on the low-voltage connector can be enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric control devices, in particular to a low-voltage connector shielding component and a low-voltage connector assembly. Background Art

[0002] Motor controllers are typically divided into low-voltage and high-voltage sections based on the voltage levels they handle. The low-voltage section primarily includes input / output interface circuits, a control motherboard, an arithmetic unit, memory, and sensors. These components are responsible for processing control signals, performing data processing and logical judgment, and monitoring motor operating status. The high-voltage section, on the other hand, includes IGBT modules, a driver motherboard, supercapacitors, discharge resistors, DC high-voltage connectors, and UVW connectors. These components directly participate in the conversion and control of electrical energy and are the core of the motor drive.

[0003] Since the electromagnetic field generated by the high-voltage part may interfere with the low-voltage part, causing control failure, data errors and other problems, isolation is required from the perspective of EMC (electromagnetic compatibility).

[0004] Therefore, it is necessary to design a low-voltage connector shielding component and a low-voltage connector assembly that can enhance the low-voltage shielding effect. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a low-voltage connector shielding component and a low-voltage connector assembly that can enhance the low-voltage shielding effect.

[0006] The technical solution of the present utility model provides a low-voltage connector shielding assembly, including a first shielding cover, a second shielding cover and a first shell, wherein the first shielding cover is used to cover the top of the PCBA board, the second shielding cover is used to cover the bottom of the PCBA board and is used to be sleeved on the outside of the low-voltage connector, and the first shell is used to be sleeved on the outside of the low-voltage connector and is located below the second shielding cover.

[0007] Furthermore, it also includes a second shell, which is at least arranged outside the first shielding cover, the PCBA board, the second shielding cover and the low-voltage connector.

[0008] Furthermore, the first shell includes a sealing portion and a base portion, the inner wall of the sealing portion is sealed to the outside of the low-voltage connector, and the outer wall of the sealing portion is sealed to the second shell, and the second shell is located above the base portion.

[0009] Furthermore, the cross-sectional area of ​​the platform portion is larger than the cross-sectional area of ​​the sealing portion.

[0010] Furthermore, a through hole is provided in the center of the sealing portion and the base portion, and the lower end of the low-voltage connector extends downward through the through hole.

[0011] Furthermore, the first shielding cover encloses the cover structure and is connected to the PCBA board via bolts or screws.

[0012] Furthermore, the second shielding cover is an annular cover, and the lower end of the low-voltage connector passes through the second shielding cover.

[0013] The utility model also provides a low-voltage connector assembly, comprising a low-voltage connector and a PCBA board, and also comprising any of the low-voltage connector shielding components described above.

[0014] Furthermore, the low-voltage connector includes an internal connection end and an external connection end, the internal connection end is connected to the PCBA board, and the external connection end passes through the first shell.

[0015] The above technical solution has the following beneficial effects:

[0016] In the present invention, the first shielding cover and the second shielding cover are respectively located above and below the PCBA board, thereby enhancing the shielding effect on the PCBA board. At the same time, since the second shielding cover and the first housing are located outside the low-voltage connector, they can also enhance the shielding effect on the low-voltage connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The disclosure of the present invention will become easier to understand with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the drawings:

[0018] Figure 1 This is a schematic diagram of a low-voltage connector assembly in one embodiment of the present utility model;

[0019] Figure 2 This is an exploded view of a low-voltage connector assembly in one embodiment of the present utility model;

[0020] Figure 3 A cross-sectional view of a low-voltage connector assembly in one embodiment of the present invention.

[0021] Reference table of accompanying symbols:

[0022] First shielding cover 1, second shielding cover 2, second housing 4, PCBA board 5;

[0023] First housing 3: sealing portion 31, support portion 32;

[0024] Low-voltage connector 6: internal connection terminal 61 and external connection terminal 62. DETAILED DESCRIPTION

[0025] The specific implementation of the present utility model will be further described below with reference to the accompanying drawings.

[0026] It is easy to understand that according to the technical solution of the present invention, a variety of structural methods and implementation methods can be replaced by those skilled in the art without changing the essential spirit of the present invention. Therefore, the following specific embodiments and drawings are only illustrative of the technical solution of the present invention and should not be regarded as the entire present invention or as a limitation or restriction of the technical solution of the utility model.

[0027] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to the structure shown in the drawings. They are relative concepts and may vary depending on the location and usage of the device. Therefore, these or other directional terms should not be interpreted as restrictive.

[0028] In some embodiments of the present invention, Figure 1 As shown, the low-voltage connector shielding assembly includes a first shielding cover 1, a second shielding cover 2 and a first shell 3. The first shielding cover 1 is used to cover the top of the PCBA board 5, the second shielding cover 2 is used to cover the bottom of the PCBA board 5, and is used to be sleeved on the outside of the low-voltage connector 6. The first shell 3 is used to be sleeved on the outside of the low-voltage connector 6 and is located below the second shielding cover 2.

[0029] Specifically, PCBA stands for Printed Circuit Board Assembly. A PCBA consists of a printed circuit board (PCB) and the electronic components mounted on it. The PCB serves as the substrate, providing the foundation for electrical connections; the electronic components are secured to the PCB through soldering and other methods to realize the circuit's functionality.

[0030] like Figure 2 As shown, the first shielding cover 1 is located above the PCBA board 5. The first shielding cover 1 is installed on the PCBA board 5 and covers some electronic components to enhance the shielding effect of some electrical components on the PCBA board.

[0031] The second shielding cover 2 is located on the other side of the PCBA board 5 . The second shielding cover 2 corresponds to the first shielding cover 1 , thereby achieving a better shielding effect for the PCBA board 5 .

[0032] Since the low-voltage connector 6 is plugged into the bottom of the PCBA board 5 , the second shielding cover 2 is sleeved on the outside of the low-voltage connector 6 and covers a portion of the low-voltage connector 6 , thereby enhancing the shielding effect of the low-voltage connector 6 .

[0033] In addition, a first housing 3 is provided below the second shielding cover 2. The first housing 3 is also sleeved on the outside of the low-voltage connector 6 and is sealed to the low-voltage connector 6. Therefore, the first housing 3 not only seals the low-voltage connector 6 but also serves as a shielding wall.

[0034] like Figure 3 As shown, the first shell 3 is close to the second shielding cover 2 , but the first shell 3 and the second shielding cover 2 do not interfere with each other.

[0035] In this embodiment, the first shielding cover 1, the second shielding cover 2 and the first shell 3 are provided to strengthen the shielding of the PCBA board 5 and the low-voltage connector 6. In addition, the first shell 3 also seals the low-voltage connector 6.

[0036] Furthermore, if Figure 1 As shown, the second housing 4 is also included. The second housing 4 is at least provided to cover the outside of the first shielding case 1 , the PCBA board 5 , the second shielding case 2 and the low-voltage connector 6 .

[0037] Specifically, Figure 1 Figure 4 is a partially cutaway diagram of the second housing 4. The lower end of the low-voltage connector 6 extends through the second housing 4, while the remaining portion resides within the interior of the second housing 4. The second housing 4 fully encloses the first shielding case 1, PCBA board 5, and second shielding case 2, enhancing the shielding effect.

[0038] Furthermore, if Figure 2-Figure 3 As shown, the first shell 3 includes a sealing portion 31 and a base portion 32 , the inner wall of the sealing portion 31 is sealed to the outside of the low-voltage connector 6 , and the outer wall of the sealing portion 31 is sealed to the second shell 4 , and the second shell 4 is located above the base portion 32 .

[0039] Specifically, Figure 2 As shown, the sealing portion 31 and the support portion 32 are integrally formed, with the sealing portion 31 positioned above the support portion 32. The inner wall of the sealing portion 31 is sealed against the exterior of the low-voltage connector 6, thereby sealing the low-voltage connector 6. Simultaneously, the outer wall of the sealing portion 31 is sealed against the second housing 4, thereby sealing the second housing 4.

[0040] The supporting platform 32 is located below the sealing portion 31 , and the edge of the supporting platform 32 exceeds the sealing portion 31 . The upper surface of the supporting platform 32 contacts the lower surface of the second shell 4 . The supporting platform 32 is provided with multiple mounting holes, which can be fixedly connected to the second shell 4 .

[0041] Furthermore, if Figure 3 As shown, the cross-sectional area of ​​the support portion 32 is larger than the cross-sectional area of ​​the sealing portion 31 , and the support portion 32 has enough area to contact with the second shell 4 to support the second shell 4 .

[0042] Furthermore, if Figure 2 As shown, a through hole is provided in the center of the sealing portion 31 and the supporting platform portion 32, and the lower end of the low-voltage connector 6 extends downward through the through hole.

[0043] Furthermore, if Figure 2 As shown, the first shielding cover 1 is a closed cover structure and is connected to the PCBA board 5 through bolts or screws.

[0044] Furthermore, if Figure 2 As shown, the second shielding cover 2 is an annular cover, the center of the second shielding cover 2 is hollowed out, and the lower end of the low-voltage connector 6 can pass through the second shielding cover 2.

[0045] In some embodiments of the present invention, Figure 1 As shown, the low-voltage connector assembly includes a low-voltage connector 6 and a PCBA board 5, and also includes any of the above-mentioned low-voltage connector shielding components.

[0046] The low-voltage connector 6 is installed below the PCBA board 5 , and the lower end of the low-voltage connector 6 is extended to the outside for connection with an external connector.

[0047] Furthermore, if Figure 2 As shown, the low-voltage connector 6 includes an internal connection end 61 and an external connection end 62 . The internal connection end 61 is connected to the PCBA board 5 , and the external connection end 62 passes through the first housing 3 .

[0048] The second shielding cover 2 and the first shell 3 are both connected to the internal connection end 61 , and the external connection end 62 passes through the first shell 3 and is connected to an external connector.

[0049] The utility model realizes substantially complete shielding of the low-voltage connector from the outside through the arrangement of the first shielding cover, the second shielding cover, the first housing, and the second housing, thereby enhancing the shielding effect of battery compatibility. In addition, the first housing can also achieve sealing with the low-voltage connector and the second housing.

[0050] The above description is only the principle and preferred embodiment of the present invention. It should be noted that, for those skilled in the art, on the basis of the principle of the present invention, several other variations can be made, which should also be considered as the scope of protection of the present invention.

Claims

1. A low voltage connector shielding assembly, characterized in that: It includes a first shielding cover, a second shielding cover and a first shell. The first shielding cover is used to cover the top of the PCBA board, the second shielding cover is used to cover the bottom of the PCBA board and is used to be sleeved on the outside of the low-voltage connector, and the first shell is used to be sleeved on the outside of the low-voltage connector and is located below the second shielding cover.

2. The low-voltage connector shielding assembly according to claim 1, characterized in that: It also includes a second shell, which is at least arranged outside the first shielding cover, the PCBA board, the second shielding cover and the low-voltage connector.

3. The low-voltage connector shielding assembly according to claim 2, characterized in that: The first shell includes a sealing portion and a base portion. The inner wall of the sealing portion is sealed to the outside of the low-voltage connector, and the outer wall of the sealing portion is sealed to the second shell. The second shell is located above the base portion.

4. The low-voltage connector shielding assembly according to claim 3, characterized in that: The cross-sectional area of ​​the platform portion is larger than the cross-sectional area of ​​the sealing portion.

5. The low-voltage connector shielding assembly according to claim 3, characterized in that: A through hole is provided at the center of the sealing portion and the supporting platform portion, and the lower end of the low-voltage connector passes through the through hole and extends downward.

6. The low-voltage connector shielding assembly according to claim 1, characterized in that: The first shielding cover is a closed cover structure and is connected to the PCBA board via bolts or screws.

7. The low-voltage connector shielding assembly according to claim 1, characterized in that: The second shielding cover is an annular cover, and the lower end of the low-voltage connector passes through the second shielding cover.

8. A low-voltage connector assembly, comprising a low-voltage connector and a PCBA board, characterized in that: It also includes the low-voltage connector shielding assembly according to any one of claims 1-7.

9. The low-voltage connector assembly according to claim 8, characterized in that: The low-voltage connector includes an internal connection end and an external connection end, the internal connection end is connected to the PCBA board, and the external connection end passes through the first shell.

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