FPC connector for automobile

Abstract

The utility model discloses an automobile FPC connector, which comprises an FPC flat cable, a base, a fixed seat, a movable part and a plurality of terminals, the fixed seat and the base are in interference fit or are clamped and fixed, the base is provided with an insertion groove for the FPC flat cable to be inserted, a limiting structure is arranged between the FPC flat cable and the insertion groove, the movable part is clamped and matched with the base, and the movable part is clamped and matched with the base. The movable part comprises an insertion portion inserted into the insertion groove, two opposite end faces of the insertion portion abut against the groove wall of the insertion groove and the FPC flat cable respectively, a plurality of terminal grooves are formed in the face, opposite to the insertion groove, of the base, the terminal comprises an upper contact arm and a lower contact arm, the upper contact arm is provided with upper protrusions in interference fit with the terminal grooves, and the lower contact arm is provided with lower protrusions in interference fit with the terminal grooves. The side wall of the insertion groove is provided with a lower through groove for insertion of the lower contact arm, and the lower contact arm is provided with a lower protrusion protruding out of the lower through groove and making contact with the FPC flat cable, and compared with the prior art adopting a flip cover type structure, the FPC flat cable connector needs smaller installation space, is thinner in thickness, and can meet the requirement of continuous development of the automobile industry.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and particularly relates to an FPC connector for automobiles. Background Art

[0002] At present, in various electronic devices, flexible flat cables (FFC) or flexible printed circuit boards (FPC) and other signal transmission components are mostly used to electrically connect with connectors. The flexible printed circuit board (FPC) is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film as the base material. It has the characteristics of high wiring density, light weight, thin thickness, and good bendability, and is widely used in the field of automotive electronics. The existing FPC cables are connected to other components through connectors.

[0003] Most of the connector mounting structures of the existing FPC cables adopt an upper-mounted structure, that is, the connector is directly welded and fixed on the upper surface of the circuit board, which makes the connector have a certain thickness, and thus inevitably increases the size of the required mounting space; most of the existing connectors adopt a flip-cover structure to fix the FPC cable, and installation and disassembly spaces need to be reserved, further increasing the size of the required mounting space, which is not conducive to the miniaturization and integration of electronic products. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an FPC connector for automobiles that requires a smaller mounting space than the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: an FPC connector for automobiles, including an FPC cable, a base, a fixed seat, a movable member, and a plurality of terminals. The fixed seat is in interference fit or snap-fit with the base. An insertion slot for inserting the FPC cable is provided on the base. A limiting structure for restricting the FPC cable from moving away from the bottom of the insertion slot is provided between the FPC cable and the insertion slot. The movable member is snap-fit with the base. The movable member includes an insertion portion inserted into the insertion slot. The opposite end faces of the insertion portion are respectively in contact with the slot wall of the insertion slot and the FPC cable. A plurality of terminal slots for inserting the terminals are provided on the surface of the base facing away from the insertion slot. The terminal includes an upper contact arm and a lower contact arm. An upper protrusion in interference fit with the terminal slot is provided on the upper contact arm. A lower through slot for inserting the lower contact arm is provided on the side wall of the insertion slot. A lower protrusion protruding from the lower through slot and in contact with the FPC cable is provided on the lower contact arm.

[0006] Adopting the above solution, the fixed seat is welded and fixed to the PCB board, and the part of the terminal that is not inserted into the terminal slot is welded and fixed to the PCB board. The utility model keeps the FPC cable in contact with the lower protrusion through the insertion portion and the limiting structure.

[0007] Compared with the prior art adopting a flip - top structure, the movable part of the present utility model moves in a straight line, making the installation space required by the present utility model smaller and the thickness thinner, and can meet the continuous development needs of the automotive industry.

[0008] As a further setting of the present utility model, the movable part includes an abutting part abutting against the notch of the insertion slot. A clamping arm is provided on the abutting part. A sliding cavity for the clamping arm to slide is provided on the base. A clamping hook is provided on the surface of the clamping arm facing the side wall of the sliding cavity. A limiting step that can be clamped with the clamping hook is provided on the side wall of the sliding cavity.

[0009] Adopting the above - mentioned scheme, the structure is simple and the clamping is convenient. The sliding cavity makes the clamping hook not affected by the outside world, making the clamping effect between the clamping hook and the limiting step better.

[0010] As a further setting of the present utility model, there are two clamping arms extending in the same direction, and there are two sliding cavities respectively arranged on opposite sides of the insertion slot.

[0011] Adopting the above - mentioned scheme, the force on both sides is evenly distributed, and the clamping effect is better.

[0012] As a further setting of the present utility model, the clamping hook is triangular, and the angle of the clamping hook facing the groove wall of the sliding cavity is an obtuse angle greater than 135°. A limiting block that can form a limit with the limiting step is provided at the end of the clamping arm far from the abutting part; when the limiting block forms a limit with the limiting step, the insertion part disengages from the insertion slot.

[0013] Adopting the above - mentioned scheme, when it is necessary to disassemble and assemble the FPC cable, apply a force to the movable part to move it away from the base to release the clamping between the clamping hook and the limiting step until the limiting block forms a limit with the limiting step, and then the FPC cable can be disassembled and assembled. It is convenient to disassemble and assemble the FPC cable and can prevent the loss of the movable part.

[0014] As a further setting of the present utility model, a slope for facilitating the entry of the clamping arm into the sliding cavity is provided at the orifice of the sliding cavity, and an inclined surface for facilitating the entry of the limiting block into the sliding cavity is provided on the side of the limiting block far from the abutting part.

[0015] Adopting the above - mentioned scheme, it is convenient to insert the clamping arm into the sliding cavity.

[0016] As a further setting of the present utility model, there are two fixing seats respectively arranged on both sides of the insertion slot. A fixing groove is provided on the base. The fixing seat includes an enlarged end inserted into the fixing groove and in interference fit with the fixing groove.

[0017] Adopting the above - mentioned scheme, the structure is simple and the assembly is convenient.

[0018] As a further arrangement of the present utility model, the fixing base includes a bottom end, a top end and a connecting end. The bottom end and the top end are connected by the connecting end. A groove for inserting the connecting end is provided between the insertion slot and the sliding cavity. The groove is a through groove and is provided on the surface of the base facing away from the slot opening of the insertion slot. The fixing groove is provided at the bottom of the groove. The enlarged end is provided on the connecting end. The top end and the bottom end respectively extend out from the opposite two slot openings of the groove and are attached to the opposite two end faces of the base.

[0019] With the above solution, the bottom end is welded and fixed to the PCB board, enabling the fixing base to be better relatively fixed to the base.

[0020] As a further arrangement of the present utility model, a first step surface and a second step surface are respectively provided on the opposite two slot openings of the groove. A first convex block for forming a limit with the first step surface and a second convex block for forming a limit with the second step surface are provided on the connecting end.

[0021] With the above solution, the fixing effect between the fixing base and the base is better.

[0022] As a further arrangement of the present utility model, the limiting structure includes notches provided on the opposite two sides of the FPC flexible cable and trapezoidal convex blocks provided on the slot wall of the insertion slot that can form a limit with the notches.

[0023] With the above solution, the structure is simple and convenient for processing.

[0024] As a further arrangement of the present utility model, an upper through groove for inserting the upper contact arm is provided on the side wall of the insertion slot. The upper contact arm abuts against the surface of the insertion part facing away from the FPC flexible cable.

[0025] With the above solution, the upper contact arm and the lower contact arm are more evenly stressed, enabling the terminal to remain in contact with the FPC flexible cable.

[0026] The present utility model will be further described below with reference to the accompanying drawings. Description of the Drawings

[0027] Attached Figure 1 is the overall schematic diagram of the specific embodiment of the present utility model;

[0028] Attached Figure 2 is the front view of the specific embodiment of the present utility model;

[0029] Attached Figure 3 is the A-A cross-sectional view of Attached Figure 2 ;

[0030] Attached Figure 4 is the B-B cross-sectional view of Attached Figure 2 ;

[0031] Attached Figure 5 is Attached Figure 2C-C cross-sectional view;

[0032] Attached Figure 6 Schematic diagram of the base of the specific embodiment of the present utility model;

[0033] Attached Figure 7 Schematic diagram of the fixed seat of the specific embodiment of the present utility model;

[0034] Attached Figure 8 Schematic diagram of the moving part of the specific embodiment of the present utility model.

[0035] FPC flexible cable 1, notch 11, base 2, insertion slot 21, trapezoidal protrusion 211, upper through groove 212, lower through groove 213, sliding cavity 22, limiting step 221, slope 222, terminal slot 23, groove 24, fixing slot 241, first step surface 242, second step surface 243, fixed seat 3, bottom end 31, top end 32, connection end 33, first protrusion 331, second protrusion 332, enlarged end 34, moving part 4, insertion part 41, abutting part 42, clamping arm 43, hook 431, limiting block 432, inclined surface 4321, terminal 5, upper contact arm 51, upper protrusion 511, lower contact arm 52, lower protrusion 521, PCB board 6. Specific embodiments

[0036] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, 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.

[0037] In the description of the present utility model, it should be noted that unless otherwise specified, terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, terms such as "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0038] The specific embodiments of the present utility model are as Figures 1-8 shown.

[0039] An FPC connector for automobiles includes an FPC cable 1, a base 2, a fixed base 3, a movable part 4 and a plurality of terminals 5. The fixed base 3 is interference-fitted with the base 2. The base 2 is provided with an insertion slot 21 for inserting the FPC cable 1. Notches 11 are provided on opposite sides of the FPC cable 1. A trapezoidal protrusion 211 that can form a limit with the notch 11 is provided on the wall of the insertion slot 21. The movable part 4 includes an insertion portion 41 inserted into the insertion slot 21 and an abutment portion 42 abutting against the notch of the insertion slot 21. The opposite end surfaces of the insertion portion 41 abut against the wall of the insertion slot 21 and the FPC cable 1, respectively. The abutment portion 42 is provided with two clamping arms 43 extending in the same direction. The base 2 is provided with a sliding cavity 22 for the clamping arms 43 to slide. There are two sliding cavities 22, which are respectively arranged on opposite sides of the insertion slot 21. The surface of the clamping arm 43 facing the side wall of the sliding cavity 22 is provided with a clamping hook 431, and the side wall of the sliding cavity 22 is provided with a limiting step 221 that can be clamped with the clamping hook 431. The sliding cavity 22 prevents the clamping hook 431 from being affected by the outside world, so that the clamping effect of the clamping hook 431 and the limiting step 221 is better.

[0040] A plurality of terminal slots 23 for inserting the terminal 5 are provided on the surface of the base 2 facing away from the insertion slot 21. The terminal 5 includes an upper contact arm 51 and a lower contact arm 52. An upper through slot 212 for inserting the upper contact arm 51 and a lower through slot 213 for inserting the lower contact arm 52 are provided on the two opposite slot walls of the insertion slot 21, respectively. An upper protrusion 511 having an interference fit with the terminal slot 23 is provided on the upper contact arm 51. The upper contact arm 51 abuts against the surface of the insertion portion 41 facing away from the FPC cable 1. The lower contact arm 52 is provided with a lower protrusion 521 protruding from the lower through slot 213 and contacting the FPC cable 1. The above design allows the upper contact arm 51 and the lower contact arm 52 to be subjected to more uniform force, so that the terminal 5 maintains contact with the FPC cable 1.

[0041] The fixing base 3 is welded and fixed to the PCB board 6, and the portion of the terminal 5 not inserted into the terminal slot 23 is welded and fixed to the PCB board 6. In this embodiment, the FPC cable 1 is kept in contact with the lower protrusion 521 through the cooperation of the insertion portion 41, the notch 11 and the ladder block 211. Compared with the prior art adopting the flip cover structure, the movable part 4 of this embodiment moves linearly, so that the installation space required for this embodiment is smaller and the thickness is thinner, which can meet the needs of the ever-developing automotive industry.

[0042] The hook 431 is triangular, and the angle of the hook 431 facing the wall of the sliding cavity 22 is an obtuse angle greater than 135°. In this embodiment, it is an obtuse angle of 150°. A limiting block 432 that can form a limit with the limiting step 221 is provided at one end of the clamping arm 43 away from the abutting portion 42. When the limiting block 432 forms a limit with the limiting step 221, the inserting portion 41 disengages from the inserting groove 21. When it is necessary to disassemble and assemble the FPC cable 1, a force is applied to the movable member 4 to move it away from the base 2 to release the clamping of the hook 431 and the limiting step 221 until the limiting block 432 forms a limit with the limiting step 221, and then the FPC cable 1 can be disassembled and assembled. The above design facilitates the disassembly and assembly of the FPC cable 1 and can prevent the loss of the movable member 4.

[0043] A slope 222 is provided at the opening of the sliding cavity 22. An inclined surface 4321 that facilitates the entry of the limiting block 432 into the sliding cavity 22 is provided on one side of the limiting block 432 away from the abutting portion 42. The slope 222 and the inclined surface 4321 facilitate the insertion of the clamping arm 43 into the sliding cavity 22.

[0044] There are two fixing seats 3, which are respectively arranged on both sides of the inserting groove 21. The fixing seat 3 includes a bottom end 31, a top end 32, a connecting end 33 and an enlarged end 34. The bottom end 31 is welded and fixed to the PCB board 6. The bottom end 31 and the top end 32 are connected by the connecting end 33. A groove 24 for inserting the connecting end 33 is provided between the inserting groove 21 and the sliding cavity 22. The groove 24 is a through groove and is provided on the surface of the base 2 facing away from the opening of the inserting groove 21. A fixing groove 241 is provided at the bottom of the groove 24. The enlarged end 34 is arranged on the connecting bottom end 31. The enlarged end 34 is inserted into the fixing groove 241 and is in interference fit with the fixing groove 241. The top end 32 and the bottom end 31 respectively extend from the opposite two openings of the groove 24 and are attached to the opposite two end faces of the base 2. A step surface one 242 and a step surface two 243 are respectively provided on the opposite two openings of the groove 24. A convex block one 331 that forms a limit with the step surface one 242 and a convex block two 332 that forms a limit with the step surface two 243 are provided on the connecting end 33. This enables the fixing seat 3 to be better fixed relative to the base 2.

[0045] The present utility model is not limited to the above specific embodiments. Those of ordinary skill in the art can implement the present utility model in other various specific embodiments according to the content disclosed in the present utility model, or any simple changes or modifications made by adopting the design structure and idea of the present utility model fall within the protection scope of the present utility model.

Claims

1. An FPC connector for automobile, characterized in that: The present invention comprises an FPC cable, a base, a fixing base, a movable part and a plurality of terminals, wherein the fixing base is interference fit or snap-fitted with the base, an insertion slot for inserting the FPC cable is provided on the base, a limiting structure for limiting the movement of the FPC cable in a direction away from the bottom of the insertion slot is provided between the FPC cable and the insertion slot, the movable part is snap-fitted with the base, the movable part comprises an insertion part inserted into the insertion slot, the two opposite end surfaces of the insertion part abut against the slot wall of the insertion slot and the FPC cable respectively, a plurality of terminal slots for inserting the terminals are provided on the surface of the base facing away from the insertion slot, the terminals comprise an upper contact arm and a lower contact arm, the upper contact arm is provided with an upper protrusion which is interference fit with the terminal slot, the side wall of the insertion slot is provided with a lower through slot for inserting the lower contact arm, and the lower contact arm is provided with a lower protrusion which protrudes from the lower through slot and contacts the FPC cable.

2. The FPC connector for automobile according to claim 1, characterized in that: The movable part includes an abutting portion abutting against the notch of the insertion slot, a clamping arm is provided on the abutting portion, a sliding cavity for the clamping arm to slide is provided on the base, a clamping hook is provided on the surface of the clamping arm facing the side wall of the sliding cavity, and a limiting step that can be clamped with the clamping hook is provided on the side wall of the sliding cavity.

3. The FPC connector for automobile according to claim 2, characterized in that: There are two clamping arms extending in the same direction, and there are two sliding cavities respectively arranged on two opposite sides of the insertion slot.

4. The FPC connector for automobile according to claim 3, characterized in that: The hook is triangular and the angle of the hook toward the sliding cavity wall is an obtuse angle greater than 135°. The end of the clamping arm away from the abutment portion is provided with a limit block that can form a limit with the limit step; when the limit block forms a limit with the limit step, the insertion portion disengages from the insertion slot.

5. The FPC connector for automobile according to claim 4, characterized in that: The cavity opening of the sliding cavity is provided with a slope for facilitating the clamping arm to enter the sliding cavity, and the side of the limiting block away from the abutting portion is provided with an inclined surface for facilitating the limiting block to enter the sliding cavity.

6. An automotive FPC connector according to claim 3, 4 or 5, characterized in that: There are two fixing seats which are respectively arranged at two sides of the insertion groove. The base is provided with a fixing groove. The fixing seat comprises an enlarged end which is inserted into the fixing groove and is interference-fitted with the fixing groove.

7. The FPC connector for automobile according to claim 6, characterized in that: The fixing seat includes a bottom end, a top end and a connecting end, the bottom end and the top end are connected by the connecting end, a groove for inserting the connecting end is provided between the insertion groove and the sliding cavity, the groove is a through groove and the groove is arranged on the surface of the base facing away from the notch of the insertion groove, the fixing groove is arranged at the bottom of the groove, the enlarged end is arranged on the connecting end, the top end and the bottom end respectively extend from the two opposite notches of the groove and fit with the two opposite end surfaces of the base.

8. The FPC connector for automobile according to claim 7, characterized in that: The two opposite notches of the groove are respectively provided with a step surface 1 and a step surface 2, and the connecting end is provided with a convex block 1 which forms a limit with the step surface 1 and a convex block 2 which forms a limit with the step surface 2.

9. An automotive FPC connector according to claim 1 or 8, characterized in that: The limiting structure includes notches arranged on opposite sides of the FPC cable and trapezoidal protrusions arranged on the wall of the insertion groove and capable of forming a limit with the notches.

10. The FPC connector for automobile according to claim 9, characterized in that: An upper through slot for inserting the upper contact arm is provided on the side wall of the insertion slot, and the upper contact arm abuts against the surface of the insertion portion facing away from the FPC cable.

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