Mutual inductor pin header assembly and mutual inductor

Abstract

The utility model relates to the technical field of mutual inductor pin headers, and particularly discloses a mutual inductor pin header assembly and a mutual inductor, the mutual inductor pin header assembly comprises a shell with an opening in one side and a pin header, the pin header comprises a fixing piece and a plurality of pins which are arranged side by side and fixedly arranged on the fixing piece in a penetrating mode, a limiting groove is formed in the shell, and a notch of the limiting groove faces one side of the opening of the shell. An inner receding hole and an outer receding hole are formed in the inner side and the outer side of the limiting groove respectively, the fixing piece is installed in the limiting groove in a limited mode, one end of the pin extends into the shell through the inner receding hole, and the other end of the pin extends out of the shell through the outer receding hole. According to the utility model, the pin header can be stably arranged in the shell, the condition that the pin header is easy to move outwards when being subjected to external force, vibration or heating is prevented, and the assembly stability of the pin header is ensured, so that the reliability of a product is ensured.

Description

Technical Field

[0001] This utility model relates to the field of current transformer pin header technology, specifically to a current transformer pin header assembly and a current transformer. Background Technology

[0002] The current transformer includes a housing and a coil module and pin headers disposed within the housing. The inner end of the pin headers is electrically connected to the coil module, and the outer end of the pin headers extends to the outside of the housing and is electrically connected to the mounting circuit board, thereby realizing the circuit connection between the coil module and the mounting circuit board. However, in existing current transformers, the pin headers are mainly fixed by welding the inner end of the pin headers to the coil module. Therefore, when the pin headers are subjected to external forces, vibration, or heat, they are prone to moving outward, affecting the assembly stability of the pin headers and thus affecting the reliability of the product. Utility Model Content

[0003] The present invention aims to provide a current transformer pin header assembly to solve the aforementioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a current transformer pin header assembly, comprising a housing with an opening on one side and a pin header, the pin header comprising a fixing member and a plurality of pins arranged side by side and fixedly inserted on the fixing member, a limiting groove is provided inside the housing, the opening of the limiting groove faces the opening side of the housing, an inner clearance hole and an outer clearance hole are respectively provided on the inner and outer sides of the limiting groove, the fixing member is limited and installed in the limiting groove, one end of the pin extends into the interior of the housing through the inner clearance hole, and the other end of the pin extends into the exterior of the housing through the outer clearance hole.

[0005] Preferably, the stitches are straight stitches or right-angled stitches.

[0006] Preferably, a positioning groove is provided inside the housing. The positioning groove is located at the end of the limiting groove away from the outer clearance hole. The pins are right-angle pins, and the right-angle ends of the right-angle pins are locked and limited in the positioning groove to prevent the right-angle pins from moving outward.

[0007] Preferably, the limiting groove is a cuboid-shaped limiting groove, the fixing member is a long strip of plastic corresponding to the shape of the limiting groove, and the fixing member is glued to the limiting groove with silicone.

[0008] This utility model also provides a current transformer, including any of the current transformer pin header assemblies described above.

[0009] Preferably, the housing is provided with a clearance channel for wires to pass through, and an annular cavity is formed inside the housing. A coil module is installed in the annular cavity, one end of the pin is electrically connected to the coil module, and the other end of the pin is used to electrically connect to the mounting circuit board outside the housing.

[0010] Preferably, the coil module includes ZCT coils and GNT coils arranged coaxially.

[0011] Preferably, a first shielding plate and a second shielding plate are respectively provided on both sides of the coil module along its axial direction.

[0012] Preferably, it also includes three insulating sheets, which are respectively disposed between the first shielding sheet and the ZCT coil, between the ZCT coil and the GNT coil, and between the GNT coil and the second shielding sheet.

[0013] Preferably, the insulating sheet, the first shielding sheet, the second shielding sheet, and the coil module are encapsulated in an annular cavity of the housing using silicone.

[0014] This utility model has the following beneficial effects:

[0015] This invention achieves circuit connectivity between the coil module and the mounting circuit by fixing the fastener in a limiting groove. One end of the pin extends into the housing through an inner clearance hole to connect electrically with the coil module, and the other end extends into the housing through an outer clearance hole to connect electrically with the mounting circuit board. The limiting groove fixes and limits the fastener, thus ensuring the pin header is stably installed in the housing and preventing it from moving outward when subjected to external force, vibration, or heat. This ensures the assembly stability of the pin header and guarantees the reliability of the product. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the current transformer pin header assembly of this utility model.

[0017] Figure 2 This is a schematic diagram of the housing of the current transformer pin header assembly of this utility model.

[0018] Figure 3 This is a schematic diagram of the pin header structure of the current transformer pin header assembly of this utility model.

[0019] Figure 4 This is a schematic diagram of the appearance of the current transformer of this utility model.

[0020] Figure 5 This is a cross-sectional view of the current transformer of this utility model.

[0021] Figure 6 This is a schematic diagram of the coil module of the current transformer of this utility model.

[0022] Figure labels: 1. Housing, 2. Pin header, 21. Fixing component, 22. Pin, 23. Right-angle end, 3. Limiting groove, 31. Inner clearance hole, 32. Outer clearance hole, 4. Positioning groove, 5. Clearance channel, 6. Annular chamber, 7. Coil module, 71. ZCT coil, 72. GNT coil, 73. First shielding sheet, 74. Second shielding sheet, 75. Insulating sheet. Detailed Implementation

[0023] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] See Figure 1-3As shown in the figure, as an embodiment of the present invention, a current transformer pin header assembly is provided, including a housing 1 with an opening on one side and a pin header 2. The pin header 2 includes a fixing member 21 and a plurality of pins 22 arranged side by side and fixedly inserted on the fixing member 21. A limiting groove 3 is provided inside the housing 1, with the groove opening of the limiting groove 3 facing the opening side of the housing 1. An inner clearance hole 31 and an outer clearance hole 32 are respectively provided on the inner and outer sides of the limiting groove 3. The fixing member 21 is limited and installed in the limiting groove 3. One end of the pin 22 extends into the interior of the housing 1 through the inner clearance hole 31 to be electrically connected to the coil module. The other end of the pin 22 extends into the exterior of the housing 1 through the outer clearance hole 32 to be electrically connected to the mounting circuit board, thereby realizing the circuit connection between the coil module and the mounting circuit board. This technical solution uses the limiting groove 3 to fix and limit the fixing part 21, thereby achieving stable installation of the pin header 2 inside the housing 1. This prevents the pin header 2 from easily moving outward when subjected to external force, vibration, or heat, ensuring the assembly stability of the pin header 2 and thus ensuring the reliability of the product.

[0027] In this embodiment, a positioning groove 4 is provided inside the housing 1. The positioning groove 4 is located at the end of the limiting groove 3 away from the outer clearance hole 32. The pin 22 is a right-angle pin 2, and the right-angle end 23 of the right-angle pin 2 is fixed and limited in the positioning groove 4 to prevent the right-angle pin 2 from moving outward, thereby further improving the installation stability of the pin 2 in the housing 1.

[0028] Of course, in other cases, it is also acceptable for pin 22 to be a straight pin 22.

[0029] In this embodiment, the limiting groove 3 is a cuboid-shaped limiting groove 3, and the fixing member 21 is a long strip plastic part corresponding to the shape of the limiting groove 3. The fixing member 21 is glued to the limiting groove 3 with silicone, which can effectively prevent the fixing member 21 from shifting or rotating in the limiting groove 3, and further improves the stability.

[0030] See Figure 4-6 As shown, this utility model also provides a current transformer, including the current transformer pin header assembly described in the above embodiment. The housing 1 is provided with a clearance channel 5 for wires to pass through. An annular cavity 6 is formed inside the housing 1. A coil module 7 is installed in the annular cavity 6. One end of the pin 22 is electrically connected to the coil module 7, and the other end of the pin 22 is used to electrically connect to the mounting circuit board outside the housing 1, thereby realizing the circuit connection between the coil module 7 and the mounting circuit board. The current transformer pin header 2 can be stably installed in the housing 1, preventing the pin header 2 from easily moving outward when subjected to external force, vibration, or heat, ensuring the assembly stability of the pin header 2, thereby ensuring the reliability of the product.

[0031] In this embodiment, the coil module 7 includes a ZCT coil 71 and a GNT coil 72 arranged coaxially. A first shielding plate 73 and a second shielding plate 74 are respectively provided on both sides of the axial direction of the coil module 7. It also includes three insulating plates 75, which are respectively disposed between the first shielding plate 73 and the ZCT coil 71, between the ZCT coil 71 and the GNT coil 72, and between the GNT coil 72 and the second shielding plate 74 to ensure insulation effect. The insulating plates 75, the first shielding plate 73, the second shielding plate 74 and the coil module 7 are sealed in the annular cavity 6 of the housing 1 with silicone to ensure the assembly stability of each component and the overall sealing and insulation effect of the product.

[0032] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that any changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A current transformer pin header assembly, characterized in that: The device includes a housing with an opening on one side and a pin header. The pin header includes a fixing member and multiple pins arranged side by side and fixedly inserted on the fixing member. A limiting groove is provided inside the housing, with the opening of the limiting groove facing the opening side of the housing. An inner clearance hole and an outer clearance hole are respectively provided on the inner and outer sides of the limiting groove. The fixing member is fixedly installed in the limiting groove. One end of the pin extends into the interior of the housing through the inner clearance hole, and the other end of the pin extends into the exterior of the housing through the outer clearance hole.

2. The current transformer pin header assembly according to claim 1, characterized in that: The stitches are either straight stitches or right-angled rows of stitches.

3. The current transformer pin header assembly according to claim 1, characterized in that: The housing is provided with a positioning groove, which is located at the end of the limiting groove away from the outer clearance hole. The pins are right-angle pins, and the right-angle ends of the right-angle pins are locked and limited in the positioning groove to prevent the right-angle pins from moving outward.

4. The current transformer pin header assembly according to claim 1, characterized in that: The limiting groove is a cuboid-shaped limiting groove, and the fixing part is a long strip of plastic that corresponds to the shape of the limiting groove. The fixing part is glued to the limiting groove with silicone.

5. A current transformer, characterized in that: Includes the current transformer pin header assembly as described in any one of claims 1-4.

6. The current transformer according to claim 5, characterized in that: The housing has clearance channels for wires to pass through, and an annular cavity is formed inside the housing. A coil module is installed in the annular cavity. One end of the pin is electrically connected to the coil module, and the other end of the pin is used to electrically connect to the mounting circuit board outside the housing.

7. The current transformer according to claim 6, characterized in that: The coil module includes coaxially arranged ZCT coils and GNT coils.

8. The current transformer according to claim 7, characterized in that: A first shielding plate and a second shielding plate are respectively provided on both sides of the axial direction of the coil module.

9. The current transformer according to claim 8, characterized in that: It also includes three insulating sheets, which are respectively disposed between the first shielding sheet and the ZCT coil, between the ZCT coil and the GNT coil, and between the GNT coil and the second shielding sheet.

10. The current transformer according to claim 9, characterized in that: The insulating sheet, the first shielding sheet, the second shielding sheet, and the coil module are encapsulated in an annular cavity of the housing using silicone.

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