Shielded connector assembly, vehicle-mounted device and vehicle

Abstract

The utility model discloses a shielded connector assembly, a vehicle-mounted device and a vehicle, wherein the shielded connector assembly includes a circuit board and a connector, the connector includes a shell and a PIN pin arranged on the shell, the circuit board is provided with a through hole, the shell passes through the through hole from bottom to top, the shell includes a shielded bottom shell, the shielded bottom shell is located below the circuit board, the PIN pin is arranged in the shielded bottom shell, the PIN pin includes a needle head and an extension part, the extension part first extends from the bottom of the needle head to the bottom of the circuit board, and then extends to the welding hole of the circuit board, and the extension part is welded on the welding hole. The shielded connector assembly of the utility model can make the connector not protrude from the outside of the housing, save external assembly space, and at the same time can strengthen the shielding signal and shielding isolation of the connector, and can enhance the structural strength of the connector, strengthen the plugging and unplugging force strength against the opponent, and reduce damage.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted connectors, and in particular to a shielded connector component, a vehicle-mounted device and a vehicle. Background Art

[0002] In the electronic and electrical systems of automobiles, some circuit boards or PCB boards are usually required to realize vehicle signal interaction and some processing functions. The vehicle connector is usually set on the circuit board, and its function is to interact with the vehicle wiring harness for signals.

[0003] Fakra connector is a very popular RF connector, widely used in the automotive industry and other fields. RF connector is a radio frequency coaxial connector, which is usually considered to be a component attached to a cable or installed on an instrument. As a component for electrical connection or separation of transmission lines, RF connector is a mechatronics product, mainly playing a bridging role. Over the past sixty years, through the joint efforts of experts from various countries, RF connectors have formed an independent and complete professional system, becoming an important part of the connector family, and an indispensable key component of the coaxial transmission system. The internal structure of the Fakra connector is based on a solid center conductor and an outer edge sleeve, and the connector is protected by a metal protective shell. This structural design enables the Fakra connector to have better signal transmission performance and higher frequency response.

[0004] The current Fakra connector interface direction is usually on the same plane as the welding surface of the circuit board, which can be called forward welding. However, due to the proximity of the circuit board to the housing, the traditional forward welding causes the connector welded on the same side of the circuit board to protrude from the housing, especially the vertically connected connector, which is not conducive to saving the external matching space of the housing. There are also a few connectors that are connected to the circuit board by reverse welding. This type of reverse welding connector has no way to provide a shielding structure for high-speed signals, resulting in poor shielding signals and poor shielding isolation. At the same time, the existing reverse welding connector itself has low structural strength, low plug-in and pull-out strength against the opponent, and is easily damaged. Utility Model Content

[0005] In order to solve at least one of the problems mentioned in the above background technology, the utility model provides a shielded connector assembly, a vehicle-mounted device and a vehicle, wherein the shielded connector assembly can prevent the connector from protruding from the outside of the casing, saving external assembly space, while strengthening the shielding signal and shielding isolation of the connector, and can enhance the structural strength of the connector, enhance the plug-in and pull-out force against the opponent, and reduce damage.

[0006] The specific technical solutions provided by the utility model are as follows:

[0007] In a first aspect, a shielded connector assembly is provided, comprising a circuit board and a connector, the connector comprising a shell and a PIN needle arranged on the shell, the circuit board is provided with a through hole, the shell passes through the through hole from bottom to top, the shell comprises a shielding bottom shell, the shielding bottom shell is located below the circuit board, the PIN needle is arranged in the shielding bottom shell, the PIN needle comprises a needle head and an extension portion, the extension portion extends from the bottom of the needle head first to the bottom of the circuit board, and then extends to the welding hole of the circuit board, and the extension portion is welded to the welding hole.

[0008] By means of the above technical scheme, the utility model hollows out part of the circuit board to form a through hole, and the shell of the connector passes through the through hole in reverse from bottom to top and is plugged into the through hole, so that the connector is arranged on the circuit board in a sunken manner. This connection method makes it difficult for the connector to protrude from the outside of the casing, saving external assembly space; by arranging a shielding bottom shell under the circuit board and arranging the PIN pin in the shielding bottom shell, the shielding signal and shielding isolation of the connector can be enhanced; by arranging an extension part of the PIN pin, the structural strength of the connector itself can be enhanced, and at the same time, the plug-in and pull-out force strength of the connector on the opponent can be enhanced, reducing damage to the connector on the circuit board.

[0009] As a preferred embodiment of the above scheme, the shielding bottom shell is a metal bottom shell, a positioning point is formed on the top surface of the shielding bottom shell, a positioning hole is formed on the circuit board, and the positioning point is welded on the positioning hole. According to the above scheme, the coordinated arrangement of the positioning point and the positioning hole not only facilitates the positioning of the connector and the circuit board during assembly, but also increases the welding strength of the connector, and at the same time improves the shielding isolation of the connector. In addition, the extension part and the welding hole can be used to limit the size of the connector within a certain range, thereby achieving dimensional stability of the connector.

[0010] As a preferred embodiment of the above scheme, a grounding terminal is provided in the shell, the needle head of the PIN needle is provided in the grounding terminal, and the grounding terminal is formed on the top surface of the shielding bottom shell. According to the above scheme, the grounding terminal cooperates with the PIN needle to transmit signals, and the grounding terminal is formed on the top surface of the shielding bottom shell to save connector assembly space.

[0011] As a preferred embodiment of the above solution, the number of the PIN pins and the grounding terminal is one or more, and the PIN pins and the grounding terminals correspond to each other one by one. According to the above solution, multiple PIN pins and the grounding terminals are arranged in the housing, which can improve assembly efficiency and save costs.

[0012] As a preferred embodiment of the above solution, the housing further comprises an upper housing, the upper housing passes through the through hole from bottom to top and is inserted into the through hole, and the ground terminal is arranged in the upper housing. According to the above solution, the upper housing provides protection for the ground terminal and the PIN needle.

[0013] As a preferred embodiment of the above solution, the extension portion is a U-shaped extension portion. According to the above solution, the structure of the U-shaped extension portion can enhance the strength of the PIN needle and the structural strength of the entire connector.

[0014] As a preferred embodiment of the above scheme, the PIN pin is arranged on the insulating sleeve, the PIN pin and the insulating sleeve are interference fit, the PIN pin and the insulating sleeve are arranged in the shielding bottom shell, and the insulating sleeve and the shielding bottom shell are interference fit. According to the above scheme, the insulating sleeve isolates the PIN pin from the shielding bottom shell, and the interference fit connection method makes the entire connector structure compact and saves assembly space.

[0015] As a preferred embodiment of the above scheme, a shielding cover is provided at the bottom of the shielding bottom shell, the shielding cover and the shielding bottom shell are interference fit, and the PIN pin is arranged in the shielding cover and the shielding bottom shell to prevent the PIN pin signal from leaking. According to the above scheme, the interference fit connection mode makes the entire connector structure compact and saves assembly space.

[0016] In a second aspect, a vehicle-mounted device is provided, comprising the above-mentioned forward welding connector assembly, an upper cover and a lower cover, wherein the forward welding connector assembly is arranged in a cavity formed by the upper cover and the lower cover, the upper cover, the circuit board and the lower cover are fixedly connected by screws, and a via is formed on the upper cover, and the via cooperates with the connector.

[0017] By means of the above technical scheme, the utility model sets a forward welding connector assembly in the cavity formed by the upper cover and the lower cover, so that the connector is not easy to protrude from the outside of the upper cover and the lower cover, thereby saving external assembly space. At the same time, the counterpart of the connector is plugged into the connector through the via hole, and the connector is not easily damaged when the counterpart is plugged in or out.

[0018] A third aspect provides a vehicle comprising the above-mentioned vehicle-mounted device.

[0019] By means of the above technical solution, the vehicle-mounted device of the utility model is installed on the vehicle, the connector is connected to the wiring harness end connector of the vehicle to perform signal interaction with the vehicle wiring harness, and the circuit board is responsible for processing the signal, thereby realizing signal interaction control of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of a group of PINs of the shielded connector assembly of the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of a three-dimensional structure from another angle;

[0023] Figure 3 for Figure 1 Schematic diagram of the split structure;

[0024] Figure 4 for Figure 3 Schematic diagram of the explosion structure;

[0025] Figure 5 for Figure 1 A schematic cross-sectional structure diagram of ;

[0026] Figure 6 It is a three-dimensional structural schematic diagram of four groups of PINs of the shielded connector assembly of the utility model;

[0027] Figure 7 for Figure 6 A schematic diagram of a three-dimensional structure from another angle;

[0028] Figure 8 for Figure 6 A schematic cross-sectional structure diagram of ;

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of the vehicle-mounted device of the utility model;

[0030] Fig.10 The figure is a schematic diagram of the explosion structure of the vehicle-mounted device of the utility model. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] The following content is for reference Figures 1 to 10 .

[0033] In the first aspect, the utility model provides a shielded connector assembly, including a circuit board 1 and a connector 2, wherein the connector 2 includes a shell 21 and a PIN needle 22 arranged on the shell 21, wherein the PIN needle 22 is a signal PIN, and in this embodiment, it is specifically a metal signal PIN, and a through hole 11 is provided on the circuit board 1, and in this embodiment, the circuit board 1 is a resin circuit board, and the shell 21 passes through the through hole 11 from bottom to top, and the shell 21 includes a shielding bottom shell 211, and the shielding bottom shell 211 is located below the circuit board 1, and the PIN needle 22 is arranged on the shielding bottom shell 211, the shielding bottom shell 211 wraps the PIN needle 22, and the PIN needle 22 includes a needle head 221 and an extension portion 222. The needle head 221 is located in the middle of the shell 21 and is arranged perpendicular to the circuit board 1. In this embodiment, the extension portion 222 is a U-shaped extension portion formed by stamping. In other embodiments, the extension portion 222 can also be other shapes, which is not limited by the utility model. The extension portion 222 extends from the bottom of the needle head 221 to the bottom of the circuit board 1, and then extends to the welding hole 12 of the circuit board 1. The extension portion 222 is welded on the welding hole 12. In this embodiment, the welding hole 12 is located around the through hole 11, and the extension portion 222 is welded on the welding hole 12 by a through-hole reflow process.

[0034] The utility model hollows out a part of the circuit board 1 to form a through hole 11, and the shell 21 of the connector 2 passes through the through hole 11 from bottom to top and is plugged into the through hole 11, so that the connector 2 is arranged on the circuit board 1 in a sunken manner. This connection method makes it difficult for the connector 2 to protrude from the outside of the casing, saving external assembly space; by arranging a shielding bottom shell 211 under the circuit board 1 to wrap the PIN pin 22, the shielding signal and shielding isolation of the connector 2 can be strengthened; by arranging the extension part 222 of the PIN pin 22, the structural strength of the connector 2 itself can be enhanced, and at the same time, the plugging and unplugging force strength of the connector 2 on the opponent can be strengthened, thereby reducing the damage of the connector 2 on the circuit board 1.

[0035] The shielding bottom shell 211 is a metal bottom shell, and a positioning point 212 is formed on the top surface of the shielding bottom shell 211, and a positioning hole 13 is formed on the circuit board 1. The positioning point 212 is welded on the positioning hole 13. In this embodiment, the positioning hole 13 and the welding hole 12 pass through the bottom surface and the top surface of the circuit board 1. The number of the positioning holes 13 and the positioning points 212 is four, and the four positioning holes 13 and the four positioning points 212 are evenly arranged around the through hole 11. The welding methods of the positioning points 212 and the positioning holes 13 include but are not limited to through-hole reflow soldering, patch reflow soldering and selective soldering. The matching setting of the positioning point 212 and the positioning hole 13 not only makes it convenient to position the connector 2 when assembling with the circuit board 1, but also increases the welding strength of the connector 2, and at the same time improves the shielding isolation of the connector 2. In addition, the extension part 222 and the welding hole 12 can be used to limit the size of the connector 2 within a certain range, thereby achieving the dimensional stability of the connector 2.

[0036] The housing 21 is provided with a grounding terminal 23, which is a metal grounding terminal 23 in this embodiment. The shielding bottom shell 211 wraps the grounding terminal 23. The needle head 221 of the PIN needle 22 is provided in the grounding terminal 23, and the grounding terminal 23 is formed on the top surface of the shielding bottom shell 211. The number of the PIN needles 22 and the grounding terminal 23 is one or more, and the PIN needles 22 and the grounding terminals 23 correspond one to one. A PIN needle 22 and a grounding terminal 23 are set as a group of PINs. A group of PINs can be set in the housing 21 of this embodiment, such as Figure 1 As shown, and four sets of PIN, such as Figure 6 As shown, in other embodiments, other groups of PINs may be set, for example, two groups of PINs.

[0037] The housing 21 also includes an upper housing 213, which passes through the through hole 11 from bottom to top and is inserted into the through hole 11. The grounding terminal 23 is arranged in the upper housing 213, and the upper housing 213 surrounds the grounding terminal 23. In this embodiment, the upper housing 213 is a plastic housing (a high temperature resistant plastic material injection molding part), and the upper housing 213 is installed on the shielding bottom shell 211 through a snap connection. A standard Fakra interface is provided on the upper housing 213 above the circuit board 1 to provide error prevention. The PIN pin 22 is arranged on the insulating sleeve 3, and the insulating sleeve 3 isolates the PIN pin 222 from the shielding bottom shell 211. The PIN pin 22 and the insulating sleeve 3 are interference fit. The PIN pin 22 and the insulating sleeve 3 are arranged in the shielding bottom shell 211, and the insulating sleeve 3 and the shielding bottom shell 211 are interference fit. In this embodiment, the insulating sleeve 3 is a plastic insulating sleeve. The bottom of the shielding bottom shell 211 is provided with a shielding cover 4, which is formed by stamping a metal part, and the edge of the shielding cover 4 is provided with a plurality of small protrusions (not shown), and the shielding cover 4 and the shielding bottom shell 211 are interference fit, and the PIN pin 22 is arranged in the shielding cover 4 and the shielding bottom shell 211, and the shielding cover 4 and the PIN pin 22 cooperate to wrap the PIN pin 22 to prevent the signal of the PIN pin 22 from leaking, and the interference fit connection mode makes the structure of the entire connector 2 compact and saves assembly space. In this embodiment, the position and shape of the shielding cover 4 on the shielding bottom shell 211 are adapted to the position and shape of the PIN pin 22, and the shielding cover 4 can just cover the entire bottom of the PIN pin 22 directly below the PIN pin 22, and cooperate with the shielding bottom shell 211 to make the signal have 360-degree shielding performance.

[0038] In this embodiment, a plurality of welding feet 214 are formed on the top edge of the shielding bottom shell 211, and the welding feet 214 are welded to the bottom surface of the circuit board 1 through the patch reflow process. The setting of the welding feet 214 further enhances the welding strength of the connector 2 and the shielding isolation of the shielding bottom shell 211.

[0039] In this embodiment, the assembly process of the entire connector 2 is as follows: first, the PIN needle 22 is pressed forcefully into the insulating sleeve 3 through an external tooling, so that the PIN needle 22 and the insulating sleeve 3 have an interference fit and provide a holding force through the interference stress between them; then, the bottom of the shielding bottom shell 211 has a through groove (not shown) that is compatible with the shielding cover 4; the insulating sleeve 3 is pressed forcefully into the shielding bottom shell 211 through the through groove through the external tooling, so that the insulating sleeve 3 and the shielding bottom shell 211 have an interference fit and provide a holding force through the interference stress between them; at this time, the grounding terminal 23 surrounds the needle head 221 of the PIN needle 22; finally, the shielding cover 4 is pressed into the through groove of the shielding bottom shell 211 through the external tooling, so that the shielding cover 4 and the shielding bottom shell 211 have an interference fit and provide a holding force through the interference stress between them, thereby completing the assembly of the connector 2. After the connector 2 is assembled, the upper shell 213 of the connector 2 is inserted into the through hole 11 of the circuit board 1 from bottom to top, and at the same time, one end of the extension part 222 is inserted into the welding hole 12, and the positioning point 212 is inserted into the positioning hole 13. Then, one end of the extension part 222 is welded in the welding hole 12, the positioning point 212 is welded on the positioning hole 13, and the welding foot 214 is welded on the bottom surface of the circuit board 1, thereby completing the assembly of the connector 2 on the circuit board 1.

[0040] In a second aspect, a vehicle-mounted device 5 is provided. In other embodiments, the vehicle-mounted device 5 may also be an electronic device of other electronic products, which is not limited in the present invention. The vehicle-mounted device 5 of this embodiment may be a vehicle-mounted control host or other vehicle-mounted equipment. Other vehicle-mounted equipment includes information navigation equipment, safety monitoring equipment, entertainment interconnection equipment, charging equipment, etc. The information navigation equipment includes a vehicle-mounted navigator, a driving recorder, a GPS navigator, etc. The safety monitoring equipment includes a reversing radar, a reversing image, a driving recorder, etc. The entertainment interconnection equipment includes a vehicle-mounted audio system, a vehicle-mounted entertainment screen, a vehicle-mounted TV, etc. The charging equipment includes a vehicle-mounted charger, a vehicle-mounted power supply, etc. The vehicle-mounted device 5 includes the above-mentioned forward welding connector assembly, an upper cover 6 and a lower cover 7. The forward welding connector assembly is arranged in a cavity formed by the upper cover 6 and the lower cover 7. The upper cover 6, the circuit board 1 and the lower cover 7 are fixedly connected by screws 8. A through hole 61 is formed on the upper cover 6, and the through hole 61 cooperates with the connector 2. In this embodiment, the circuit board 1 of the vehicle-mounted device 5 is provided with a plurality of adjacent through holes 11 , and a plurality of connectors 2 are arranged on the through holes 11 in a one-to-one correspondence. Meanwhile, the through holes 61 are arranged in a long strip shape, and the long strip-shaped through holes 61 cooperate with the plurality of connectors 2 .

[0041] The utility model arranges a forward welding connector assembly in the cavity formed by the upper cover 6 and the lower cover 7, so that the connector 2 is not easy to protrude from the outside of the upper cover 6 and the lower cover 7, thereby saving external assembly space. At the same time, the counterpart of the connector 2 is plugged into the connector 2 through the through hole 61, and the connector 2 is not easily damaged when the counterpart is plugged in or out.

[0042] In a third aspect, a vehicle is provided, comprising the above-mentioned vehicle-mounted device 5.

[0043] The vehicle-mounted device 5 of the utility model is mounted on a vehicle, the connector 2 is connected to the harness-end connector of the vehicle to perform signal interaction with the vehicle harness, and the circuit board 1 is responsible for processing the signal, thereby realizing signal interaction control of the vehicle.

[0044] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0045] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A shielded connector assembly, comprising a circuit board and a connector, wherein the connector comprises a housing and a PIN needle arranged on the housing, characterized in that: The circuit board is provided with a through hole, and the shell passes through the through hole from bottom to top. The shell includes a shielding bottom shell, and the shielding bottom shell is located below the circuit board. The PIN needle is arranged in the shielding bottom shell. The PIN needle includes a needle head and an extension portion. The extension portion first extends from the bottom of the needle head to the bottom of the circuit board, and then extends to the welding hole of the circuit board. The extension portion is welded to the welding hole.

2. The shielded connector assembly according to claim 1, characterized in that: The shielding bottom shell is a metal bottom shell, a positioning point is formed on the top surface of the shielding bottom shell, a positioning hole is formed on the circuit board, and the positioning point is welded on the positioning hole.

3. The shielded connector assembly according to claim 2, characterized in that: A grounding terminal is arranged in the shell, the needle head is arranged in the grounding terminal, and the grounding terminal is formed on the top surface of the shielding bottom shell.

4. The shielded connector assembly according to claim 3, characterized in that: The number of the PIN pins is one or more, and the number of the ground terminals is one or more, wherein the PIN pins and the ground terminals correspond one to one.

5. The shielded connector assembly according to claim 4, characterized in that: The housing further comprises an upper housing, the upper housing passes through the through hole from bottom to top and is inserted into the through hole, and the grounding terminal is arranged in the upper housing.

6. The shielded connector assembly according to claim 1, characterized in that: The extension portion is a U-shaped extension portion.

7. The shielded connector assembly according to claim 1, characterized in that: The PIN needle is arranged on the insulating sleeve, and the PIN needle and the insulating sleeve are interference-fitted. The PIN needle and the insulating sleeve are arranged in the shielding bottom shell, and the insulating sleeve and the shielding bottom shell are interference-fitted.

8. The shielded connector assembly according to claim 7, characterized in that: A shielding cover is arranged at the bottom of the shielding bottom shell, the shielding cover and the shielding bottom shell are interference fit, and the PIN needle is arranged in the shielding cover and the shielding bottom shell.

9. A vehicle-mounted device, characterized in that: It comprises a shielded connector assembly, an upper cover and a lower cover as described in any one of claims 1 to 8, wherein the shielded connector assembly comprises a circuit board and a connector, wherein the shielded connector assembly is arranged in a cavity formed by the upper cover and the lower cover, the upper cover, the circuit board and the lower cover are fixedly connected by screws, and a via is formed on the upper cover, and the via cooperates with the connector.

10. A vehicle, characterized in that: Comprising the vehicle-mounted device as claimed in claim 9.

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