Vehicle-mounted FPC connector

Abstract

The utility model discloses a vehicle-mounted FPC (Flexible Printed Circuit) connector. Comprising an insulating main body with a terminal mounting groove, ground pieces fixedly arranged at the two ends of the insulating main body, a plurality of signal terminals which are uniformly embedded in the terminal mounting groove at intervals and are used for being electrically connected with an FPC board, and an insulating cover which is in running fit with hook parts of the signal terminals and is used for pressing and fixing the FPC board, a first shielding shell is fixedly arranged on the insulating cover, and buckle structures clamped and fixed with the ground pieces are formed at the two ends of the first shielding shell. According to the utility model, the first shielding shell and the second shielding shell are arranged, the first shielding shell is fixed with the ground piece by adopting a double-lock catch structure, and the second shielding shell is rotatably connected with the first shielding shell, so that the connection stability of a product is greatly improved, and external dust, sundries and the like are prevented from entering the connector; and meanwhile, a shielding loop can be formed, so that the electromagnetic interference resistance of the product is further enhanced.

Description

Technical Field

[0001] This utility model belongs to the field of electrical connector technology, and particularly relates to the field of FPC connectors. Background Technology

[0002] In today's era of rapid development in electronic technology, FPC (Flexible Printed Circuit Board) connectors play a crucial role as key components connecting flexible circuit boards to other circuit components in electronic devices. Due to their flexibility, ease of assembly, and high practicality, they are widely used in the field of automotive infotainment screens. Among them, the signal terminals are the core component of the FPC connector, and their performance directly affects the overall performance and reliability of the electronic device.

[0003] With the increasing complexity and performance improvement of electronic devices, the requirements for automotive FPC connectors are also rising. However, existing FPC connectors have significant shortcomings in terms of connection stability and electromagnetic shielding. Regarding connection stability, most lack effective locking structures or use plastic locking structures that are not robust enough, resulting in insufficient contact with the FPC board. Under prolonged use or exposure to external vibrations, the connection is prone to loosening, leading to poor contact, affecting signal transmission quality, and even causing equipment failure. As for electromagnetic shielding, the internal electromagnetic environment of electronic devices is becoming increasingly complex, and the transmission of high-frequency signals places higher demands on electromagnetic shielding. Existing FPC connectors have insufficient electromagnetic shielding effectiveness in their shell materials, failing to effectively block the intrusion of external electromagnetic interference. The internal wiring and structural design also fail to adequately consider electromagnetic interference suppression, causing electromagnetic signals to easily generate crosstalk and radiation within the connector. Utility Model Content

[0004] The purpose of this invention is to provide a vehicle-mounted FPC connector with good connection stability and electromagnetic shielding to overcome the shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An automotive FPC connector includes an insulating body with terminal mounting slots, ground plates fixed at both ends of the insulating body, a plurality of signal terminals evenly spaced and embedded in the terminal mounting slots for electrical connection with an FPC board, and an insulating cover that rotatably engages with the hooks of the signal terminals for pressing and fixing the FPC board. A first shielding shell is fixed on the insulating cover, and the first shielding shell has snap-fit ​​structures formed at both ends for engaging and fixing with the ground plates.

[0007] Furthermore, the ground plate includes solder feet located at the bottom of the insulating body for soldering to the circuit board, and a clamping arm covering the end of the insulating body and integrally connected to the solder feet. The clamping arm includes a first clamping arm located inside the insulating body and a second clamping arm located outside the insulating body, and both the first clamping arm and the second clamping arm have clamping holes.

[0008] Furthermore, the buckle structure includes a first spring arm and a second spring arm formed by extending and bending the first shielding shell outward, which respectively cooperate with the first buckle arm and the second buckle arm. The first spring arm and the second spring arm are formed with buckling protrusions facing each other to engage with the buckle hole.

[0009] Furthermore, the first shielding shell is provided with an outwardly protruding part that facilitates the opening of the insulating cover.

[0010] Furthermore, a second shielding shell is rotatably mounted next to the first shielding shell, and the second shielding shell covers the outside of the signal terminal.

[0011] Furthermore, the end of the second elastic arm is folded outward to form a support arm that is spaced a certain distance from the second elastic arm. The support arm is parallel to the second elastic arm and has a through hole in the middle.

[0012] Furthermore, the second shielding shell includes a shielding cover plate and a metal pressing rod fixed on the shielding cover plate, wherein the two ends of the metal pressing rod are bent to form a rotating shaft that rotatably engages with the through hole.

[0013] Furthermore, the outer side wall of the insulating body is provided with an outwardly protruding fastening part, and correspondingly, the second shielding shell is folded to form a third locking arm, and the third locking arm is provided with a locking hole that cooperates with the fastening part.

[0014] Compared with the prior art, the beneficial technical effects of this vehicle-mounted FPC connector provided by the present invention are as follows:

[0015] 1. This utility model, by setting a first shielding shell on the insulating cover and fixing the first shielding shell to the ground plate with a double-locking structure, not only greatly improves the connection stability of the product, but also ensures stable contact of the terminals even under harsh vehicle operating conditions, thus expanding the application scenarios and scope; moreover, through contact with the ground plate, it further enhances electromagnetic shielding and provides stable grounding, thereby ensuring signal transmission and improving system safety and stability.

[0016] 2. This utility model, by covering the outside of the signal terminal with a second shielding shell and rotatably connecting the second shielding shell with the first shielding shell, can not only effectively prevent external dust, debris and other objects from entering the connector and affecting the stability of signal transmission and connection; but also form a shielding circuit with the first shielding shell, enhancing the product's anti-electromagnetic interference performance. Attached Figure Description

[0017] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of an insulated cover of a vehicle-mounted FPC connector when it is tightly closed, according to Embodiment 1 of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of an insulated cover of a vehicle-mounted FPC connector when it is opened, according to Embodiment 1 of this utility model.

[0020] Figure 3 An exploded view of a vehicle-mounted FPC connector provided in Embodiment 1 of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the insulating cover and the first shielding shell in an automotive FPC connector according to Embodiment 1 of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the signal terminal in an automotive FPC connector according to Embodiment 1 of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the ground plate in a vehicle-mounted FPC connector according to Embodiment 2 of this utility model;

[0024] Figure 7 This is a schematic diagram of the structure of an insulated cover of a vehicle-mounted FPC connector when it is tightly closed, according to Embodiment 2 of this utility model.

[0025] Figure 8 This is a schematic diagram illustrating the connection relationship between the first shielding shell and the ground plate when the insulating cover of an automotive FPC connector is tightly closed, as provided in Embodiment 2 of this utility model.

[0026] Figure 9 This is a schematic diagram of the structure of an insulated cover of a vehicle-mounted FPC connector when it is opened, as provided in Embodiment 2 of this utility model. Figure 1 ;

[0027] Figure 10 This is a schematic diagram of the structure of an insulated cover of a vehicle-mounted FPC connector when it is opened, as provided in Embodiment 2 of this utility model. Figure 2 ;

[0028] Figure 11 This is an exploded view of a vehicle-mounted FPC connector provided in Embodiment 2 of this utility model.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1-FPC board, 2-Insulating body, 201-Terminal mounting slot, 202-Holding part, 3-Signal terminal, 301-Baseboard, 302-Support arm, 303-Pin, 304-Elastic arm, 305-Hook, 306-Contact, 4-Insulating cover, 5-Ground plate, 501-Fixing foot, 502-Soldering foot, 503-First locking arm, 504-Second locking arm, 505-Locking hole, 6-First shielding shell, 601-First elastic arm, 602-Second elastic arm, 603-Protrusion, 604-Locking protrusion, 605-Support arm, 606-Through hole, 607-Pulley, 7-Second shielding shell, 701-Metal pressing rod, 702-Rotating shaft, 703-Third locking arm, 704-Locking hole. Detailed Implementation

[0031] 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 embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0032] Example 1:

[0033] This utility model embodiment provides an automotive FPC connector, including an insulating body 2 with a terminal mounting groove 201, ground plates 5 fixed at both ends of the insulating body 2, a plurality of signal terminals 3 evenly spaced and embedded in the terminal mounting groove 201 for electrical connection with an FPC board 1, and an insulating cover 4 that rotatably engages with the signal terminals 3 to press and fix the FPC board 1. Specifically:

[0034] like Figures 1 to 3As shown, the insulating body 2 is integrally molded using injection molding and other processes, serving as the basic frame of the FPC connector. It contains multiple holes for supporting and fixing other components such as the signal terminals 3 and ground plates 5, guiding the FPC board 1 to be accurately inserted into the designated position and ensuring proper contact between the signal terminals 3 and the contacts of the FPC board 1. The insulating body 2 provides enclosure and protection for the signal terminals 3, isolating them from each other to prevent short circuits and other faults caused by contact between terminals, ensuring the stability and reliability of signal transmission, and providing a certain mechanical strength to the connector as a whole, guaranteeing the structural stability of the connector.

[0035] like Figure 5 As shown, the signal terminal 3 is the core component of the vehicle-mounted FPC connector. It is evenly distributed in the holes inside the insulating body 2, corresponding to the contact points on the FPC board 1, so that it can accurately contact the signal terminal 3 when the FPC board 1 is inserted, thus enabling the transmission of electronic signals. In this embodiment, the signal terminal 3 includes a substrate 301, a support arm 302, a pin 303, and an elastic arm 304. The substrate 301 is embedded in the insulating body 2. The support arm 302 extends forward from the upper end of the substrate 301 and has a hook 305 for mounting the insulating cover 4. The elastic arm 304 extends forward from the lower end of the substrate 301, and its end has an upwardly protruding, vertically floating contact 306 for contacting the contact surface of the FPC board 1. The pin 303 extends backward from the lower end of the substrate 301 for soldering and fixing to a circuit board or other electronic equipment.

[0036] like Figure 6 As shown, the ground plate 5 includes a fixing foot 501, a soldering foot 502, and a locking arm. Specifically, the fixing foot 501 has barbs and is inserted into the fixing grooves at both ends of the insulating body 2. The soldering foot 502 extends downward from the non-insertion end of the fixing foot 501 and is horizontally bent at the bottom of the insulating body 2. It is used to connect to the grounding line on the circuit board to achieve the grounding function, provide a stable reference potential for signal transmission, and guide interference signals such as static electricity and noise in the circuit to the ground, avoiding these interference signals from affecting normal signal transmission and improving signal quality and stability. The locking arm extends upward from the non-insertion end of the fixing foot 501 and is bent, covering the end of the insulating body 2. The locking arm includes a first locking arm 503 located inside the insulating body 2 and a second locking arm 504 located outside the insulating body 2. Both the first locking arm 503 and the second locking arm 504 have locking holes 505.

[0037] The insulating cover 4 is shaped to match the insulating body 2, being a flat, elongated strip to ensure complete coverage of the connection between the FPC board 1 and the signal terminal 3, protecting the connection between the internal signal terminal 3 and the FPC board 1. The mounting portion of the insulating cover 4 rotatably engages with the hook 305 of the signal terminal 3, allowing the insulating cover 4 to be flipped open and closed relative to the insulating body 2, facilitating the insertion and removal of the FPC board 1.

[0038] Furthermore, to ensure a tight connection between FPC board 1 and the connector, and to prevent poor signal transmission due to looseness, such as... Figures 2 to 4 As shown, the insulating cover 4 is also provided with a first shielding shell 6. The outer side of the first shielding shell 6 has an outwardly protruding portion 603 for easy opening of the insulating cover 4. The first shielding shell 6 has two ends bent to form a snap-fit ​​structure that engages with the snap-fit ​​holes 505 on the ground plate 5. Specifically, the snap-fit ​​structure includes a first spring arm 601 and a second spring arm 602 formed by extending and bending the first shielding shell 6 outwards. The first spring arm 601 and the second spring arm 602 have symmetrically formed snap-fit ​​protrusions 604, which can be snapped and fixed with the snap-fit ​​holes 505 on the first snap-fit ​​arm 503 and the second snap-fit ​​arm 504, respectively. This double-locking structure not only greatly improves the connection stability of the product, ensuring stable terminal contact even under harsh automotive conditions, thus expanding the application scenarios and scope; but also, through contact with the ground plate 5, further enhances electromagnetic shielding and provides stable grounding, thereby ensuring signal transmission and improving system safety and stability.

[0039] Example 2:

[0040] like Figures 7 to 11 As shown, compared to Embodiment 1, the difference in this embodiment is that the signal terminal 3 is further covered by a second shielding shell 7. The second shielding shell 7 is located next to the first shielding shell 6 and is rotatably connected to the first shielding shell 6. This is to prevent dust from entering the connection area and to enhance the product's anti-electromagnetic interference performance. Specifically:

[0041] The second elastic arm 602 of the first shielding shell 6 has its end folded outward to form a support arm 302 spaced apart from the second elastic arm 602. The support arm 302 is parallel to the second elastic arm 602 and has a through hole 606 in the middle for mounting a rotating shaft 702. The end of the support arm 302 extends and is bent to form a lever 607 for easily separating the elastic arm from the locking arm. Correspondingly, the second shielding shell 7 includes a shielding cover plate and a metal pressing rod 701 fixed on the shielding cover plate. The two ends of the metal pressing rod 701 are bent to form a rotating shaft 702 that rotatably engages with the through hole 606. The second shielding shell 7 is rotatably connected to the support arm 302 of the first shielding shell 6 through the rotating shaft 702, allowing the second shielding shell 7 to open and close vertically relative to the first shielding shell 6.

[0042] Additionally, the outer wall of the insulating body 2 is provided with an outwardly protruding fastening part 202. Correspondingly, the second shielding shell 7 is partially folded to form a third locking arm 703. The third locking arm 703 has a locking hole 704 that cooperates with the fastening part 202. When the second shielding shell 7 completely covers the signal terminal 3 and abuts against the upper surface of the insulating body 2, the fastening part 202 can engage and lock with the locking hole 704, thereby effectively preventing external dust, debris, etc. from entering the connector and affecting the stability of signal transmission and connection; at the same time, it can also form a shielding circuit with the first shielding shell 6, enhancing the product's anti-electromagnetic interference performance.

[0043] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A vehicle-mounted FPC connector, characterized in that: The device includes an insulating body (2) with a terminal mounting groove (201), ground plates (5) fixed at both ends of the insulating body (2), a number of signal terminals (3) evenly spaced and embedded in the terminal mounting groove (201) for electrical connection with the FPC board (1), and an insulating cover (4) that rotates with the hook (305) of the signal terminal (3) to press and fix the FPC board (1). A first shielding shell (6) is fixed on the insulating cover (4), and the first shielding shell (6) has a snap-fit ​​structure formed at both ends for snapping and fixing with the ground plate (5).

2. The vehicle-mounted FPC connector according to claim 1, characterized in that: The ground plate (5) includes a solder foot (502) located at the bottom of the insulating body (2) for soldering to the circuit board, and a clamping arm covering the end of the insulating body (2) and integrally connected to the solder foot (502). The clamping arm includes a first clamping arm (503) located inside the insulating body (2) and a second clamping arm (504) located outside the insulating body (2). Both the first clamping arm (503) and the second clamping arm (504) are provided with clamping holes (505).

3. The vehicle-mounted FPC connector according to claim 2, characterized in that: The buckle structure includes a first spring arm (601) and a second spring arm (602) formed by extending and bending the first shielding shell (6) outward, which respectively cooperate with the first buckle arm (503) and the second buckle arm (504). The first spring arm (601) and the second spring arm (602) are formed with buckling protrusions (604) facing each other to engage with the buckle hole (505).

4. The vehicle-mounted FPC connector according to claim 1, characterized in that: The first shielding shell (6) is provided with an outward protrusion (603) that facilitates the opening of the insulating cover (4).

5. A vehicle-mounted FPC connector according to claim 3, characterized in that: A second shielding shell (7) is rotatably mounted next to the first shielding shell (6), and the second shielding shell (7) covers the outside of the signal terminal (3).

6. The vehicle-mounted FPC connector according to claim 5, characterized in that: The end of the second elastic arm (602) is folded outward to form a support arm (302) that is spaced apart from the second elastic arm (602) by a certain distance. The support arm (302) is parallel to the second elastic arm (602) and has a through hole (606) in the middle.

7. A vehicle-mounted FPC connector according to claim 6, characterized in that: The second shielding shell (7) includes a shielding cover plate and a metal pressing rod (701) fixed on the shielding cover plate. The two ends of the metal pressing rod (701) are bent to form a rotating shaft (702) that rotates with the through hole (606).

8. A vehicle-mounted FPC connector according to claim 5, characterized in that: The outer side wall of the insulating body (2) is provided with an outwardly protruding fastening part (202). Correspondingly, the second shielding shell (7) is partially folded to form a third locking arm (703). The third locking arm (703) is provided with a locking hole (704) that cooperates with the fastening part (202).

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