Simple FPC connector

Abstract

The utility model discloses a simple FPC connector, which comprises an insulating seat body, an overturning gland, two grounding terminals and a plurality of signal terminals, the front end of the insulating seat body is concavely provided with an insertion groove, the overturning gland can be installed on the insulating seat body in an up-and-down overturning manner, rotating shaft blocks on two sides of the overturning gland are respectively arranged in rotating shaft block clamping grooves of the insulating seat body, and the signal terminals are arranged in the rotating shaft block clamping grooves of the insulating seat body. The signal terminals are respectively arranged between the insulating seat body and the overturning gland along the length direction of the insulating seat body and the overturning gland, the grounding terminals are respectively arranged outside the two ends of the inserting groove, the two ends of the overturning gland are respectively provided with a convex block, and the two inner side walls of the insulating seat body are respectively provided with a limiting groove with an opening edge inclining from inside to outside. And the overturning gland can be abutted against the limiting groove of the insulating seat body through the convex block after being overturned downwards, so that limiting is realized. According to the utility model, the structures of the insulating base and the turnover gland are improved, so that the structures of the insulating base body and the grounding terminal become simple, an additional buckle structure is not needed, the production efficiency is higher, and the cost is reduced.

Description

Technical Field

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

[0002] FPC connectors are mainly used with flexible docking ends such as FPC flexible printed circuit boards or FFC flexible flat cables and flat cables to transmit signals from one end to the other to achieve the purpose of signal transmission. They are widely used in a variety of electronic devices. In order to enable the flip cover to flip on the insulating seat at a fixed position without moving, the traditional flip-type connector adds a snap structure on the fixing plates at both ends of the insulating seat to limit the movement range of the flip cover. However, this will make the structure of the insulating seat and the fixing plate complicated, increasing the production cost. In addition, in order to avoid the rebound of the signal terminal after contact with the flat cable when the product is used, the traditional flip-type connector hollows out the plastic at the corresponding position. Although this can avoid the signal terminal, it will also make the structure of the insulating seat more complicated. Accordingly, the mold needs to run a slider, and the manufacturing and production costs are higher. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned defects in the prior art and provide a simple FPC connector which does not require an additional buckle structure, has a more stable and reliable connection, has high production efficiency, and effectively reduces production costs.

[0004] To achieve the above-mentioned purpose, the utility model provides a simple FPC connector, comprising an insulating seat body, a flip pressure cover, two grounding terminals and a plurality of signal terminals, the front end of the insulating seat body is concavely provided with an insertion groove, the flip pressure cover can be installed on the insulating seat body in an upside-down manner and is located at the upper end entrance of the insertion groove, the two sides of the flip pressure cover are provided with shaft blocks, the inner walls of the two sides of the insulating seat body are provided with shaft block slots, the shaft blocks are respectively inserted into the shaft block slots of the insulating seat body, the signal terminals are respectively installed between the insulating seat body and the flip pressure cover along the length direction of the two and allow the flip pressure cover to flip relative to the insulating seat body, the grounding terminals are respectively installed on the outside of the two ends of the insertion groove, the two ends of the flip pressure cover are respectively provided with protrusions, the two inner side walls of the insulating seat body are provided with limiting grooves with opening edges inclined from the inside to the outside, and the flip pressure cover can be abutted against the limiting grooves of the insulating seat body through the protrusions after being flipped downward, thereby realizing limiting.

[0005] Preferably, the shape of the protrusion is an inverted L-shape, and the outer edge of the protrusion is configured as a first inclined surface inclined from the inside to the outside.

[0006] Preferably, a plurality of terminal mounting holes are provided on the insulating base body, arranged in sequence along its length direction. A plurality of gland through holes are formed in the flipping gland along its length direction. The lower contact arm at the front end of the signal terminal extends into the terminal mounting hole, and the upper contact arm at the front end of the signal terminal correspondingly extends into the gland through hole. The welding tail at the rear end of the signal terminal extends out from the back of the insulating base body. The grounding contact portion of the grounding terminal is inserted into the grounding mounting grooves formed on both sides of the insulating base body, and the grounding leg of the grounding terminal extends out from the bottom of the insulating base body.

[0007] Preferably, the grounding terminal further includes a grounding longitudinal piece portion. The grounding contact portion is horizontally connected to the top of one side of the grounding longitudinal piece portion. A grounding clamping groove is formed between the grounding contact portion and the grounding longitudinal piece portion. The grounding leg is horizontally bent and connected to the bottom of the other side of the grounding longitudinal piece portion.

[0008] Preferably, each signal terminal further includes a base body portion. The lower contact arm and the upper contact arm are respectively connected to the upper and lower ends of one side of the base body portion. A terminal clamping groove is formed between the lower contact arm and the upper contact arm. The welding tail protrudes downward from the lower end of the other side of the base body portion.

[0009] Preferably, two contact protrusions are spaced apart on the top of each lower contact arm. The width of the contact protrusion is smaller than the width of the lower contact arm. The end of the lower contact arm extends forward to form a second inclined surface, and the thickness of the second inclined surface gradually decreases from the top surface of the outermost contact protrusion.

[0010] Preferably, a plurality of avoidance grooves are formed on the insulating base body, respectively located below their corresponding lower contact arms.

[0011] Preferably, a gland shaft block is provided in each gland through hole. The upper contact arm at the front end of each signal terminal extends into the corresponding gland through hole on the flipping gland and hooks the gland shaft block.

[0012] Preferably, an internal handle position is formed on the inner side of the top surface of the flipping gland.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The structure of the present utility model is simple and reasonably designed. By improving the structures of the insulating base and the flip cover, the structures of the insulating seat body and the grounding terminal become simpler. The rotating shaft blocks on both sides of the flip cover are respectively placed into the rotating shaft block card slots of the insulating seat body and can rotate. When the two are buckled together, they can be abutted against the limiting slots of the insulating seat body through the convex blocks, so that the flip cover will not automatically open after being closed, eliminating the need to add additional buckle structures, reducing the complexity of traditional production processes, being more conducive to production, having higher production efficiency, and effectively reducing production costs.

[0015] 2. The present utility model simplifies the fixing piece structures at both ends of the insulating seat body, and can add additional welding points at the positions of the two fixing pieces, making the FPC connector more stable after welding, not easily loosening during use, and improving durability and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a front structural schematic diagram of a simple FPC connector provided by an embodiment of the present utility model;

[0018] Figure 2 is a back view of a simple FPC connector provided by an embodiment of the present utility model Figure 2 ;

[0019] Figure 3 is an exploded schematic diagram of a simple FPC connector provided by an embodiment of the present utility model;

[0020] Figure 4 is a partial structural schematic diagram of the insulating seat body of a simple FPC connector provided by an embodiment of the present utility model;

[0021] Figure 5 is a structural schematic diagram of the signal terminal of a simple FPC connector provided by an embodiment of the present utility model;

[0022] Figure 6 is a structural schematic diagram of the grounding terminal of a simple FPC connector provided by an embodiment of the present utility model;

[0023] Figure 7 is a cross-sectional schematic diagram of a simple FPC connector provided by an embodiment of the present utility model;

[0024] Figure 8 It is an assembly schematic diagram of a simple FPC connector provided by an embodiment of the present utility model. Specific embodiments

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figure 1 , an embodiment of the present utility model provides a simple FPC connector, including components such as an insulating seat body 1, a flipping cover 2, two grounding terminals 3, and several signal terminals 4. The following will describe each component of this embodiment in detail with reference to the accompanying drawings.

[0027] As Figures 1 to 3 shown, the front end of the insulating seat body 1 may be recessed with an insertion groove 10. The flipping cover 2 is rotatably mounted on the insulating seat body 1 and is located at the upper end entrance of the insertion groove 10. Rotating blocks 21 are provided on both sides of the flipping cover 2. Rotating block slots 11 are formed on the inner walls of both sides of the insulating seat body 1. The rotating blocks 21 are respectively inserted into the rotating block slots 11 of the insulating seat body 1. The signal terminals 4 are respectively installed between the insulating seat body 1 and the flipping cover 2 along the length directions of the insulating seat body 1 and the flipping cover 2 and allow the flipping cover 2 to flip relative to the insulating seat body 1. The grounding terminals 3 are respectively installed outside both ends of the insertion groove 10. Protrusions 22 are respectively provided at both ends of the flipping cover 2. Limiting grooves 12 with openings having edges inclined from inside to outside are provided on the inner side walls of both sides of the insulating seat body 1. The flipping cover 2 can be abutted against the limiting grooves 12 of the insulating seat body 1 through the protrusions 22 after being flipped downward, thereby realizing limiting.

[0028] Preferably, the shape of the protrusion 22 can be set as an inverted L shape, and the outer edge of the protrusion 22 is provided with a first inclined surface 221 inclined from inside to outside.

[0029] Among them, an internal handle position 24 may be formed on the inner side of the top surface of the flipping cover 2.

[0030] In specific implementation, through the above-mentioned rotating connection method, the shaft block 21 is inserted into the shaft block slot 11 and can rotate. The design of the protrusion 22 can limit the movement range of the flip cover 2. When the flip cover is closed, the protrusion 22 can abut against the limit groove 12 of the insulating seat body 1 to prevent it from automatically opening during connection and making the connection invalid. The built-in buckle position 24 also allows the operator to open or close the flip cover 2 more conveniently.

[0031] Preferably, in this embodiment, the fixing plates 16 on the left and right sides of the insulating seat body 1 can be designed to be simpler, and the assembly cost and production cost are greatly reduced. Additional welding points can also be added at the positions of the two fixing plates 16, so that the FPC connector is more stable after welding and will not loosen easily, thereby improving the durability of the FPC connector.

[0032] like Figure 5 As shown, each signal terminal 4 may also include a base portion 44, a lower contact arm 41 and an upper contact arm 42 are respectively connected to the upper and lower ends of one side of the base portion 44, a terminal clamping groove 40 is opened between the lower contact arm 41 and the upper contact arm 42, and a welding tail 43 protrudes downward at the lower end of the other side of the base portion 44.

[0033] Preferably, two contact protrusions 411 may be spaced apart at the top of each lower contact arm 41, the width of the contact protrusion 411 is smaller than the width of the lower contact arm 41, and the end of the lower contact arm 41 extends forward to form a second inclined surface 412, and the thickness of the second inclined surface 412 gradually decreases from the top surface of the contact protrusion 411 located on the outside.

[0034] Among them, the second slope 412 of the signal terminal 4 is thinner than that of the traditional signal terminal. Through the thinned contact position design, the bite force between the signal terminal 4 and the FFC line is enhanced, making its contact with the FFC line closer, improving the conduction performance, and reducing the risk of open circuit.

[0035] like Figure 4 As shown, specifically, the insulating base body 1 can be provided with a plurality of terminal mounting holes 13 arranged in sequence along its length direction, the flip gland 2 is provided with a plurality of gland through holes 23 along its length direction, the lower contact arm 41 at the front end of the signal terminal 4 extends into the terminal mounting hole 13, the upper contact arm 42 at the front end of the signal terminal 4 correspondingly extends into the gland through hole 23 and allows the flip gland 2 to be flipped relative to the insulating base body 1, the welding tail 43 at the rear end of the signal terminal 4 extends from the back of the insulating base body 1, the grounding contact portion 31 of the grounding terminal 3 is inserted into the grounding mounting groove 14 opened on both sides of the insulating base body 1, and the grounding foot 32 of the grounding terminal 3 extends from the bottom of the insulating base body 1.

[0036] like Figure 6As shown, the grounding terminal 3 may further include a grounding vertical piece portion 33. The grounding contact portion 31 is connected in parallel to the top of one side of the grounding vertical piece portion 33. A grounding clamping groove 30 is provided between the grounding contact portion 31 and the grounding vertical piece portion 33. The grounding foot portion 32 is horizontally bent and connected to the bottom of the other side of the grounding vertical piece portion 33.

[0037] Among them, when the FFC cable is inserted into the FPC connector, it can be in contact with the grounding contact portion 31 of the grounding terminal 3. Through grounding, the anti-crosstalk effect can be better.

[0038] As Figure 7 shown, the insulating seat body 1 may be provided with a plurality of avoiding grooves 15 respectively located below their corresponding lower contact arms 41.

[0039] Among them, the lower contact arm 41 can avoid the insulating seat body 1 through the avoiding groove 15, which can reduce the interference force generated between the lower contact arm 41 and the insulating seat body 1 after the FFC cable is inserted into the FPC connector, and prevent the FFC cable from being damaged when it is pulled out.

[0040] Specifically, a gland shaft block 231 may be provided in each gland through hole 23. The upper contact arms 42 at the front ends of each signal terminal 4 respectively extend into the corresponding gland through holes 23 on the flipping gland 2 and hook the gland shaft block 231.

[0041] During specific implementation, the upper contact arm 42 of the signal terminal 4 extends into the gland through hole 23 and hooks the gland shaft block 231, which can realize the rotational installation of the flipping gland 2.

[0042] The working principle of this embodiment is as follows:

[0043] As Figure 8 shown, during operation, the FPC connector is connected to the PCB board 8. First, the flipping gland 2 is opened and the FFC cable 6 is inserted into the insertion groove 10, and then the flipping gland 2 is turned down and buckled, so that the connection parts between the signal terminals and the FFC cable 6 are engaged with each other. At the same time, the grounding contact portion 31 of the grounding terminal 3 can also be in contact connection with one side of the FFC cable 6. In addition, the contact position of the signal terminal 4 is thinned, which can increase the biting force between the signal terminal and the FFC cable 6, making the contact between the two better, the conductivity stronger, and reducing the risk of open circuit. The fixing pieces 16 on the left and right sides of the insulating seat body 1 have a simple structure, so two additional welding points can be added to make the FPC connector more firm and stable after welding, and it can be more stable and reliable when used by customers.

[0044] In summary, through the improvement of the structures of the insulating base and the flipping cover, the structures of the insulating seat body and the grounding terminal become simpler. The rotating shaft blocks on both sides of the flipping cover are respectively placed into the rotating shaft block slots of the insulating seat body and can rotate. When they are buckled together, they can be abutted against the limiting slots of the insulating seat body through the bumps, so that the flipping cover will not automatically open after being closed, eliminating the need to add additional buckle structures, reducing the complexity of traditional production processes, being more conducive to production, having higher production efficiency, and effectively reducing production costs.

[0045] The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A simple FPC connector, characterized in that: The invention comprises an insulating seat body (1), a flip cover (2), two grounding terminals (3) and a plurality of signal terminals (4); the front end of the insulating seat body (1) is provided with an insertion groove (10); the flip cover (2) can be installed on the insulating seat body (1) in an upside-down manner and is located at the upper entrance of the insertion groove (10); rotating shaft blocks (21) are provided on both sides of the flip cover (2); rotating shaft block slots (11) are provided on the inner walls of both sides of the insulating seat body (1); the rotating shaft blocks (21) are respectively inserted into the rotating shaft block slots (11) of the insulating seat body (1); and the signal terminals (4) are provided with a plurality of grounding terminals (3) and a plurality of signal terminals (4); 4) are respectively installed between the insulating seat body (1) and the flip cover (2) along their length directions and allow the flip cover (2) to flip relative to the insulating seat body (1); the grounding terminals (3) are respectively installed outside the two ends of the insertion groove (10); the two ends of the flip cover (2) are respectively provided with protrusions (22); the two inner side walls of the insulating seat body (1) are both provided with limiting grooves (12) with opening edges inclined from the inside to the outside; the flip cover (2) can be abutted against the limiting groove (12) of the insulating seat body (1) through the protrusions (22) after flipping downward, thereby achieving limiting.

2. A simplified FPC connector according to claim 1, characterized in that: The shape of the protrusion (22) is an inverted L-shape, and the outer edge of the protrusion (22) is arranged as a first inclined surface (221) inclined from the inside to the outside.

3. A simplified FPC connector according to claim 1, characterized in that: The insulating seat (1) is provided with a plurality of terminal mounting holes (13) arranged in sequence along its length direction; the flip cover (2) is provided with a plurality of cover through holes (23) along its length direction; the lower contact arm (41) at the front end of the signal terminal (4) extends into the terminal mounting hole (13); the upper contact arm (42) at the front end of the signal terminal (4) correspondingly extends into the cover through hole (23); the welding tail (43) at the rear end of the signal terminal (4) extends from the back of the insulating seat (1); the grounding contact portion (31) of the grounding terminal (3) is inserted into the grounding mounting groove (14) provided on both sides of the insulating seat (1); and the grounding foot (32) of the grounding terminal (3) extends from the bottom of the insulating seat (1).

4. A simplified FPC connector according to claim 3, characterized in that: The grounding terminal (3) further comprises a grounding longitudinal sheet portion (33), the grounding contact portion (31) being parallelly connected to the top of one side of the grounding longitudinal sheet portion (33), a grounding clamping groove (30) being provided between the grounding contact portion (31) and the grounding longitudinal sheet portion (33), and the grounding foot portion (32) being horizontally bent and connected to the bottom of the other side of the grounding longitudinal sheet portion (33).

5. The simplified FPC connector according to claim 3, characterized in that: Each signal terminal (4) further comprises a base portion (44), the lower contact arm (41) and the upper contact arm (42) being respectively connected to the upper and lower ends of one side of the base portion (44), a terminal clamping groove (40) being provided between the lower contact arm (41) and the upper contact arm (42), and the welding tail portion (43) protruding downward from the lower end of the other side of the base portion (44).

6. A simplified FPC connector according to claim 3, characterized in that: Two contact protrusions (411) are arranged at intervals on the top of each lower contact arm (41), the width of the contact protrusion (411) is smaller than the width of the lower contact arm (41), and the end of the lower contact arm (41) extends forward to form a second inclined surface (412), and the thickness of the second inclined surface (412) gradually decreases from the top surface of the contact protrusion (411) located on the outside.

7. A simplified FPC connector according to claim 3, characterized in that: The insulating seat body (1) is provided with a plurality of avoidance grooves (15) respectively located below the corresponding lower contact arms (41).

8. The simplified FPC connector according to claim 3, characterized in that: A gland shaft block (231) is provided in each gland through hole (23), and an upper contact arm (42) at the front end of each signal terminal (4) extends into a corresponding gland through hole (23) on the flip gland (2) and hooks the gland shaft block (231).

9. The simplified FPC connector according to claim 1, characterized in that: A built-in handle position (24) is provided on the inner side of the top surface of the flip cover (2).

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