Double-piece FPC connector structure

Abstract

The embodiment of the utility model belongs to the technical field of FPC connectors. The utility model also relates to a double-piece FPC connector structure, which comprises a PCB (printed circuit board), the PCB is provided with a connector assembly, the connector assembly comprises two connector shells which are stacked together, the two connector shells are both provided with FPC insertion ports, and an upper piece FPC and a lower piece FPC are respectively inserted into the two FPC insertion ports; a plurality of terminal parts are arranged between the two connector shells, the plurality of terminal parts are all connected with the PCB, and the upper piece FPC and the lower piece FPC are connected with the terminal parts. According to the invention, through the arrangement of the connector assembly, the connector assembly is provided with the two FPC insertion ports to realize simultaneous installation of the upper piece FPC and the lower piece FPC, that is, connection between the upper piece FPC and the PCB and connection between the lower piece FPC and the PCB can be completed by using one connector, so that the wiring process is greatly simplified, and the wiring space demand is reduced; the number of connectors is reduced, and the material cost and the complexity of inventory management are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of FPC connectors, and more specifically to a double-piece FPC connector structure. Background Art

[0002] In the current electronic equipment manufacturing field, flexible printed circuit boards (FPCs) are widely used in the connection of display screens, backlight modules and other components due to their excellent flexibility, lightness and reliability. However, the traditional connection method usually requires the use of two independent connectors to connect the backlight FPC and the display FPC respectively. This connection method not only increases the number and cost of connectors, but also increases the welding process and complexity, thereby reducing production efficiency and equipment reliability.

[0003] Specifically, existing connector designs usually require two independent connection parts, one for connecting the backlight FPC and the other for connecting the display FPC. During the assembly process, these two connection parts need to be welded separately, which not only increases the process difficulty, but also may introduce additional failure points. In addition, since more connectors are required, it also increases the material cost and the complexity of inventory management. Therefore, we improve this and propose a double-piece FPC connector structure. Utility Model Content

[0004] The technical problem to be solved by the embodiment of the utility model is to use two independent connectors to respectively connect the backlight FPC and the display screen FPC. This connection method increases the number of connectors and the cost.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A double-piece FPC connector structure, comprising: a PCB circuit board, a connector assembly is arranged on the PCB circuit board, the connector assembly comprises two connector shells stacked together, both of the two connector shells are provided with FPC insertion ports, and an upper FPC and a lower FPC are respectively plugged into the two FPC insertion ports;

[0007] A plurality of terminal parts are arranged between the two connector housings, the plurality of terminal parts are all connected to the PCB circuit board, and the upper FPC and the lower FPC are connected to the terminal parts.

[0008] As an improved embodiment of the utility model, the terminal portion includes a first terminal and a second terminal, the first terminal and the second terminal are respectively arranged in two connector housings and the FPC insertion port, the first terminal is connected to a second solder leg, the second solder leg extends from the back side of one of the connector housings and is welded to the PCB circuit board, and the second terminal is connected to a first solder leg, the first solder leg extends from the back side of the other connector housing and is welded to the PCB circuit board.

[0009] As an improvement of the utility model, terminal arms are provided at the bottom of the first terminal and the second terminal, and the terminal arms extend into the connector housing. An inclined support arm is provided at the top of the terminal arm, and the top of the inclined support arm has a contact, and the top of the terminal arm has at least two contacts.

[0010] As an improvement of the utility model, a connector cover is provided on the uppermost connector housing, and a first reinforcing plate is fixedly installed on the top of the upper FPC, and the upper FPC and the first reinforcing plate are plugged between the connector cover and the FPC insertion port.

[0011] As an improved manner of the utility model, the top of the first reinforcing plate contacts the first terminal, and the gold finger of the upper FPC contacts the contact point directly below the first terminal.

[0012] As an improved approach of the utility model, a second reinforcing plate is fixedly connected to the top of the lower FPC, the top of the second reinforcing plate contacts the second terminal, and the gold finger of the lower FPC contacts the contact point directly below the second terminal.

[0013] As an improvement of the utility model, two limiting holes are provided on the second reinforcing plate, and positioning columns are inserted and connected to the two limiting holes, and the positioning columns are fixedly installed on the top of the PCB circuit board.

[0014] As an improved manner of the utility model, a limiting groove is provided on the positioning column, and the limiting groove is plugged into the inner wall of the limiting hole.

[0015] As an improved manner of the present invention, two grounding plates are arranged between the two connector housings, and the grounding plates are connected to the PCB circuit board.

[0016] As an improvement of the utility model, the grounding plate includes a grounding plate body connected between the PCB circuit board and the two connector shells, and two grounding plate arms are arranged on the grounding plate body, and the positions of the two grounding plate arms respectively correspond to the positions of the two connector shells.

[0017] Compared with the prior art, the embodiments of the present invention mainly have the following beneficial effects:

[0018] In order to solve the problem that two independent connectors are used to respectively connect the backlight FPC and the display FPC in the prior art, and this connection method increases the number and cost of connectors, the present application provides a connector component, and the connector component has two FPC insertion ports to realize the simultaneous installation of the upper FPC and the lower FPC, that is, one connector can be used to complete the connection between the upper FPC and the lower FPC and the PCB circuit board, which greatly simplifies the wiring process and reduces the demand for wiring space; reduces the number of connectors, reduces material costs and the complexity of inventory management; reduces the welding process and complexity, and improves production efficiency and equipment reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a double-piece FPC connector provided in this application;

[0020] Figure 2 The double-piece FPC connector structure provided in this application Figure 1 The enlarged structural diagram at A in the middle;

[0021] Figure 3 The double-piece FPC connector structure provided in this application Figure 1 A rear view structural diagram of ;

[0022] Figure 4 The double-piece FPC connector structure provided in this application Figure 1 The enlarged structural diagram at B in the middle;

[0023] Figure 5 A schematic diagram of the structure of the limiting holes of the double-piece FPC connector structure provided in this application;

[0024] Figure 6 A schematic structural diagram of a grounding sheet body and a grounding sheet support arm of a double-piece FPC connector structure provided in this application;

[0025] Figure 7 A schematic diagram of the structure of the terminal portion of the double-piece FPC connector structure provided by the present application;

[0026] Figure 8 A schematic side view of the cross-sectional structure of the connector housing of the double-piece FPC connector structure provided in the present application.

[0027] Indicated in the figure:

[0028] 1. PCB circuit board; 2. Connector assembly; 201. Connector shell; 202. FPC insertion port; 203. First terminal; 204. Second terminal; 205. First solder leg; 206. Second solder leg; 207. Inclined support arm; 208. Grounding plate body; 209. Grounding plate support arm; 211. Connector cover; 212. Terminal arm; 3. Upper FPC; 301. First reinforcement plate; 4. Lower FPC; 401. Second reinforcement plate; 402. Limiting hole; 403. Positioning column; 404. Limiting groove. DETAILED DESCRIPTION

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Reference to "embodiments" herein means that specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] As described in the background technology, existing connector designs usually require two independent connecting parts, which are used to connect the backlight FPC and the display FPC respectively. During the assembly process, these two connecting parts need to be welded separately, which not only increases the difficulty of the process, but also may introduce additional failure points. In addition, since more connectors are required, material costs and inventory management complexity are also increased.

[0031] In order to solve this technical problem, the utility model provides a double-piece FPC connector structure.

[0032] Specifically, please refer to Figure 1-Figure 8 , the double-piece FPC connector structure specifically includes:

[0033] A PCB circuit board 1 is provided with a connector assembly 2, the connector assembly 2 comprises two stacked connector housings 201, both connector housings 201 are provided with FPC insertion ports 202, and an upper FPC 3 and a lower FPC 4 are respectively plugged into the two FPC insertion ports 202;

[0034] A plurality of terminal parts are arranged between the two connector housings 201 , and the plurality of terminal parts are all connected to the PCB circuit board 1 , and the upper FPC 3 and the lower FPC 4 are connected to the terminal parts.

[0035] The double-piece FPC connector structure provided by the utility model has a connector component 2, and the connector component 2 has two FPC insertion ports 202 to realize the simultaneous installation of the upper piece FPC 3 and the lower piece FPC 4, that is, one connector can be used to complete the connection between the upper piece FPC 3 and the lower piece FPC 4 and the PCB circuit board 1, which greatly simplifies the wiring process and reduces the demand for wiring space; reduces the number of connectors, reduces material costs and the complexity of inventory management; reduces the welding process and complexity, and improves production efficiency and equipment reliability.

[0036] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] Embodiment 1 of the double-piece FPC connector structure of the utility model

[0040] Please refer to Figure 1-Figure 8 The double-piece FPC connector structure of the utility model comprises: a PCB circuit board 1, a connector assembly 2 is arranged on the PCB circuit board 1, the connector assembly 2 comprises two connector housings 201 stacked together, both connector housings 201 are provided with FPC insertion ports 202, and the upper FPC 3 and the lower FPC 4 are respectively plugged into the two FPC insertion ports 202;

[0041] A plurality of terminal parts are arranged between the two connector housings 201, and the plurality of terminal parts are connected to the PCB circuit board 1, and the upper FPC3 and the lower FPC4 are connected to the terminal parts. The connector assembly 2 is arranged, and the connector assembly 2 has two FPC insertion ports 202 to realize the simultaneous installation of the upper FPC3 and the lower FPC4, that is, one connector can be used to complete the connection between the upper FPC3 and the lower FPC4 and the PCB circuit board 1, which greatly simplifies the wiring process and reduces the demand for wiring space; reduces the number of connectors, reduces material costs and the complexity of inventory management; reduces the welding process and complexity, and improves production efficiency and equipment reliability.

[0042] That is, this application can plug in two FPCs, which has the following advantages:

[0043] Improve wiring efficiency: Since one connector can connect two FPCs at the same time, wiring work becomes more efficient, reducing the number of connectors and thus simplifying the overall wiring system;

[0044] Space saving: Compared with using two separate connectors, a connector that can plug into two FPCs can save space on the circuit board, which is particularly important for modern electronic devices that pursue miniaturization and compact design;

[0045] Simplified installation and maintenance: Since the number of connectors is reduced, the installation and maintenance process becomes simpler and faster, reducing labor and time costs.

[0046] Further, such as Figure 7-Figure 8 As shown, the terminal portion includes a first terminal 203 and a second terminal 204, and the first terminal 203 and the second terminal 204 are respectively arranged in two connector housings 201 and the FPC insertion port 202, and the first terminal 203 is connected to a second welding leg 206, and the second welding leg 206 extends from the back of one of the connector housings 201 and is welded to the PCB circuit board 1, and the second terminal 204 is connected to a first welding leg 205, and the first welding leg 205 extends from the back of the other connector housing 201 and is welded to the PCB circuit board 1. In the present application, since the two connector housings 201 are fixed together, the welding of the second welding leg 206 and the first welding leg 205 can be performed synchronously, thereby simplifying the positioning process during welding, and the welding points of the second welding leg 206 and the first welding leg 205 are separated front and back to avoid mutual interference during welding.

[0047] Further, such as Figure 7-Figure 8 As shown, the bottom of the first terminal 203 and the second terminal 204 are both provided with a terminal arm 212, which is in the shape of a curved arm and has downward elasticity, so that the FPC can be squeezed in and rebound after being fully inserted, ensuring close contact with the FPC gold finger. The terminal arm 212 extends into the connector housing 201, and the top of the terminal arm 212 is provided with an inclined support arm 207, and the top of the inclined support arm 207 has a contact point, and the top of the terminal arm 212 has at least two contacts, that is, when the terminal part is connected to the FPC gold finger, there are at least three contacts. This design brings many benefits:

[0048] First, the three contacts improve the stability and reliability of the connection. Compared with a single or double contact design, the three-contact design has significant advantages in terms of contact area and stability. This means that during the transmission of current or signals, the three-contact design is more resistant to external interference, such as vibration, shock or temperature changes, thereby ensuring a long-lasting and stable connection.

[0049] Secondly, the three-contact design helps to disperse the load. During the current or signal transmission process, the load will be evenly distributed to the three contacts instead of being concentrated on a single contact. This helps to reduce the risk of damage or failure of the contacts due to overload and extend the service life of the connector.

[0050] In addition, the three-contact design can also improve the precision and accuracy of the connection. Due to the increase in the number of contacts, the connector can better maintain position stability during insertion and removal, reducing problems such as poor contact or signal distortion caused by position deviation;

[0051] Finally, the three-contact design also provides better redundancy. Even if one of the contacts fails for some reason, the other two contacts can still maintain the connection to ensure the normal operation of the system. This redundancy is especially important for critical applications such as medical equipment, aerospace or industrial automation.

[0052] In general, the three-contact design of the connector terminal can improve the stability, reliability, accuracy and redundancy of the connection, thereby meeting the needs of various application scenarios for high-performance connectors.

[0053] Embodiment 2 of the double-piece FPC connector structure of the utility model

[0054] The double-piece FPC connector structure of the utility model is further improved as follows: Figure 1 , Figure 2 and Figure 6 As shown, a connector cover 211 is provided on the connector shell 201 located at the top, and a first reinforcing plate 301 is fixedly installed on the top of the upper FPC3. The upper FPC3 and the first reinforcing plate 301 are inserted between the connector cover 211 and the FPC insertion port 202, that is, the upper FPC3 is limited after being inserted through the connector cover 211.

[0055] Furthermore, the top of the first reinforcing plate 301 contacts the first terminal 203 , and the gold finger of the upper FPC 3 contacts the contact point directly below the first terminal 203 .

[0056] Further, such as Figure 2 and Figure 5 As shown, the top of the lower FPC4 is fixedly connected with a second reinforcing plate 401 , the top of the second reinforcing plate 401 contacts the second terminal 204 , and the gold finger of the lower FPC4 contacts the contact point directly below the second terminal 204 .

[0057] Further, such as Figure 2 and Figure 5As shown, two limiting holes 402 are provided on the second reinforcing plate 401, and the two limiting holes 402 are both interspersed with positioning posts 403, and the positioning posts 403 are fixedly installed on the top of the PCB circuit board 1. The lower FPC4 is limited by the mutual cooperation of the second reinforcing plate 401, the limiting holes 402 and the positioning posts 403 to improve the firmness of the connection between the lower FPC4 and the connector assembly 2.

[0058] Further, such as Figure 5 As shown, a limiting groove 404 is provided on the positioning column 403, and the limiting groove 404 is plugged into the inner wall of the limiting hole 402. A slope is provided on the top of the positioning column 403 to facilitate the insertion of the positioning column 403 into the limiting hole 402, and the mutual cooperation between the positioning column 403 and the limiting groove 404 can further limit the second reinforcing plate 401 to improve the stability of limiting the lower piece FPC4.

[0059] Embodiment 3 of the double-piece FPC connector structure of the utility model

[0060] The double-piece FPC connector structure of the utility model is further improved as follows: Figure 6 and Figure 7 As shown, two grounding plates are arranged between the two connector housings 201 , and the grounding plates are connected to the PCB circuit board 1 .

[0061] Further, such as Figure 6 and Figure 7 As shown, the grounding plate includes a grounding plate body 208 connected between the PCB circuit board 1 and the two connector housings 201, and two grounding plate arms 209 are arranged on the grounding plate body 208. The positions of the two grounding plate arms 209 correspond to the positions of the two connector housings 201 respectively. The grounding plate body 208 and the grounding plate arms 209 are integrally arranged. The integral arrangement can connect the peripheral positions of the upper and lower FPCs, save a separate grounding plate, and effectively conduct away static electricity.

[0062] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A double-piece FPC connector structure, characterized in that: include: A PCB circuit board (1), wherein a connector assembly (2) is arranged on the PCB circuit board (1), wherein the connector assembly (2) comprises two connector housings (201) stacked together, wherein both connector housings (201) are provided with an FPC insertion port (202), and an upper FPC (3) and a lower FPC (4) are respectively plugged into the two FPC insertion ports (202); A plurality of terminal parts are arranged between the two connector housings (201); the plurality of terminal parts are connected to the PCB circuit board (1); and the upper FPC (3) and the lower FPC (4) are connected to the terminal parts.

2. The double-piece FPC connector structure according to claim 1, characterized in that: The terminal portion comprises a first terminal (203) and a second terminal (204), the first terminal (203) and the second terminal (204) being respectively arranged in two connector housings (201) and an FPC insertion port (202), the first terminal (203) being connected to a second solder leg (206), the second solder leg (206) extending from the back side of one of the connector housings (201) and being soldered to the PCB circuit board (1), and the second terminal (204) being connected to a first solder leg (205), the first solder leg (205) extending from the back side of the other connector housing (201) and being soldered to the PCB circuit board (1).

3. The double-piece FPC connector structure according to claim 2, characterized in that: The bottom of each of the first terminal (203) and the second terminal (204) is provided with a terminal arm (212), the terminal arm (212) extends into the connector housing (201), the top of the terminal arm (212) is provided with an inclined support arm (207), the top of the inclined support arm (207) has a contact, and the top of the terminal arm (212) has at least two contacts.

4. The double-piece FPC connector structure according to claim 3, characterized in that: A connector cover (211) is provided on the connector housing (201) at the top, and a first reinforcing plate (301) is fixedly mounted on the top of the upper FPC (3); the upper FPC (3) and the first reinforcing plate (301) are plugged between the connector cover (211) and the FPC insertion port (202).

5. The double-piece FPC connector structure according to claim 4, characterized in that: The top of the first reinforcing plate (301) contacts the first terminal (203), and the gold finger of the upper FPC (3) contacts the contact point directly below the first terminal (203).

6. The double-piece FPC connector structure according to claim 5, characterized in that: A second reinforcing plate (401) is fixedly connected to the top of the lower FPC (4), the top of the second reinforcing plate (401) contacts the second terminal (204), and the gold finger of the lower FPC (4) contacts the contact point directly below the second terminal (204).

7. The double-piece FPC connector structure according to claim 6, characterized in that: The second reinforcing plate (401) is provided with two limiting holes (402), and both limiting holes (402) are interspersed with positioning posts (403), and the positioning posts (403) are fixedly mounted on the top of the PCB circuit board (1).

8. The double-piece FPC connector structure according to claim 7, characterized in that: The positioning column (403) is provided with a limiting groove (404), and the limiting groove (404) is plugged into the inner wall of the limiting hole (402).

9. The double-piece FPC connector structure according to claim 8, characterized in that: Two grounding plates are arranged between the two connector housings (201), and the grounding plates are connected to the PCB circuit board (1).

10. The double-piece FPC connector structure according to claim 9, characterized in that: The grounding plate comprises a grounding plate body (208) connected between a PCB circuit board (1) and two connector housings (201), and two grounding plate arms (209) are arranged on the grounding plate body (208), and the positions of the two grounding plate arms (209) respectively correspond to the positions of the two connector housings (201).

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