Flexible-to-use FPC connector

Abstract

The utility model relates to the technical field of connectors, in particular to a flexible-to-use FPC (Flexible Printed Circuit) connector, which comprises an insulating base, terminals and a gland. The insulating base is provided with a cover control part, the cover control part comprises a wire clamping part, and in the cover closing state, when a peripheral FPC flat cable is inserted into the wire inserting groove, the elastic force of the wire clamping part is overcome to abut against the wire clamping part to give way until the wire clamping part locks the FPC flat cable in the inserting and pulling direction; the pressing cover is provided with an unlocking part and a cover closing linkage part, and when the pressing cover is opened, the unlocking part can drive the wire clamping part to move so as to release the limitation of the FPC flat cable in the plugging direction; after the pressing cover is opened, the cover closing linkage part and the FPC flat cable interfere with each other on a wire pulling track, so that the cover closing linkage part is driven to close the pressing cover when the FPC flat cable is pulled out. Compared with the prior art, the pressing cover does not need to be opened deliberately when the FPC flat cable is inserted, and locking can be achieved by directly inserting the FPC flat cable; when the FPC flat cable needs to be pulled out, the pressing cover is opened firstly, the pressing cover can be closed in a linkage mode when the FPC flat cable is pulled out, manual additional cover closing is not needed, and use is flexible and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, and particularly relates to an FPC connector that can be flexibly used. Background Art

[0002] FPC (abbreviation for Flexible Printed Circuit, flexible printed circuit board) is a highly reliable flexible printed circuit board made of polyimide or polyester film as the base material, which has the characteristics of high wiring density, light weight, thin thickness, and good bending property. The FPC connector is used to connect the PCB (abbreviation for Printed Circuit Board, printed circuit board) and the FPC to achieve mechanical and electrical connections between them.

[0003] For example, an FPC connector disclosed in a Chinese patent document with the publication number CN213093426U for connecting an FPC cable includes: a main housing; and a terminal assembly disposed on the main housing; an insertion port portion is provided at one end in the width direction of the main housing, and an introduction structure is provided in the insertion port portion for introducing the FPC cable into the insertion port portion. By providing the introduction structure at the insertion port portion of the main housing, it is convenient to better align and guide the insertion when installing the FPC cable into the FPC connector, that is, it is convenient to load the FPC cable into the FPC connector, effectively avoiding damage to the FPC connector and the FPC cable, and also improving the installation efficiency of the FPC connector and the FPC cable.

[0004] Another example is an FPC connector disclosed in a Chinese patent document with the publication number CN204361407U, which includes an insulating body, a flip cover, and a plurality of connection terminals fixed in the insulating body and arranged at intervals in the width direction of the insulating body; the connection terminals include a terminal upper arm and a terminal lower arm, and a plurality of through grooves corresponding to the connection terminals one by one are provided on the flip cover to allow the terminal upper arm to extend into them. A pivot shaft is provided on the flip cover along the arrangement direction of the through grooves, and the pivot shaft penetrates through each through groove; corresponding pivot holes are provided on the terminal upper arm; guiding blocks are respectively provided at both ends in the length direction of the flip cover, and guiding surfaces cooperating with the guiding blocks are provided on the insulating body; a convex rib is provided on the outer side surface of the guiding block, and grooves for cooperating with the convex rib to prevent the flip cover from opening are provided on both inner side walls in the width direction of the insulating body. The technical problem to be solved is to provide an FPC connector with a simple structure, little affected by vibration, long service life of the flip cover, and not easily detached from the insulating body.

[0005] In the prior art, an FPC flexible flat cable is tightly fixed by a gland. When inserting the FPC flexible flat cable, it is necessary to manually lift the gland, insert the end of the FPC flexible flat cable into the insulating base to contact the terminals inside, and then manually fasten the gland; when it is necessary to pull out the FPC flexible flat cable, it is necessary to manually lift the gland to release the pressing on the FPC flexible flat cable. After the FPC flexible flat cable is pulled out, in order to prevent dust from entering the connector and maintain the sealing of the connector, it is necessary to manually fasten the gland again. In practice, it often happens that the gland is not fastened after the FPC flexible flat cable is pulled out, which is likely to cause adverse effects. Summary of the Utility Model

[0006] In view of the above technical problems in the prior art, the present utility model provides an FPC connector that can be used flexibly.

[0007] To achieve the above object, the present utility model provides the following technical solutions:

[0008] Provide an FPC connector that can be used flexibly, including an insulating base, a plurality of terminals arranged on the insulating base, and a gland hinged to the insulating base or the terminals. The insulating base is provided with an insertion groove for inserting an external FPC flexible flat cable to electrically connect to the terminals. The feature is that: the insulating base is provided with a gland control member, and the gland control member includes a wire clamping portion elastically embedded in the insertion groove, so that in the closed cover state, when the external FPC flexible flat cable is inserted into the insertion groove, it overcomes the elastic force of the wire clamping portion and abuts against it to make it yield, until the wire clamping portion locks the FPC flexible flat cable in the plugging and unplugging direction;

[0009] The gland is provided with an unlocking portion and a closing cover linkage portion. When the gland is lifted, the unlocking portion can drive the wire clamping portion to move to release the limit on the FPC flexible flat cable in the plugging and unplugging direction; in the closed cover state, the closing cover linkage portion and the FPC flexible flat cable avoid each other in the plugging and unplugging trajectory; after the gland is lifted, the closing cover linkage portion and the FPC flexible flat cable interfere with each other in the wire pulling trajectory, so that when the FPC flexible flat cable is pulled out, it drives the closing cover linkage portion to close the gland.

[0010] As a further optional solution, the gland control member includes a base plate and a floating plate. The floating plate and the base plate are arranged in a horizontal U shape with respect to each other, so that the floating plate can elastically deform up and down. The wire clamping portion is arranged on the floating plate, and when the gland is lifted, the closing cover linkage portion presses down the floating plate.

[0011] As a further optional solution, the side of the floating plate is provided with an extending protrusion, the wire clamping portion is located on the extending protrusion, and a yielding groove for the closing cover linkage portion to pass through is left between the extending protrusion and the floating plate.

[0012] As a further optional solution, the top of the wire clamping portion is provided with a guiding inclined surface climbing along the wire insertion direction, and the end of the guiding inclined surface forms a corner for blocking the FPC flexible flat cable in the plugging and unplugging direction.

[0013] As a further optional solution, the end of the floating sheet is provided with an elbow, and the unlocking portion is provided with an unlocking inclined surface. When the pressure cover is opened, the unlocking inclined surface and the elbow slide and rub against each other to press the floating sheet downward.

[0014] As a further optional solution, the control cover members are respectively disposed at both ends of the insulating base.

[0015] As a further optional solution, the control cover is an integrated hardware bending structure.

[0016] As a further alternative, the base plate has fixing ears extending downwardly.

[0017] As a further optional solution, the pressure cover is provided with a positioning boss, and the top of the insulating base is provided with a positioning groove, and the positioning boss is embedded in the positioning groove when the cover is in the closed state.

[0018] As a further optional solution, the insulating base is provided with a blocking portion for limiting the opening range of the pressure cover.

[0019] Beneficial effects of the utility model:

[0020] The utility model discloses a flexible FPC connector. Compared with the prior art, when inserting the FPC cable, there is no need to deliberately open the pressure cover, and the FPC cable can be directly inserted to lock it; when the FPC cable needs to be pulled out, the pressure cover is first opened, and when the FPC cable is pulled out, the pressure cover can be linked to close, and there is no need to manually close the cover, which is flexible and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of a flexible FPC connector in the embodiment, combined with an FPC cable, the same below.

[0022] Figure 2 It is an exploded view of a flexible FPC connector in an embodiment.

[0023] Figure 3 Schematic diagram of the structure of the control cover in the embodiment.

[0024] Figure 4 It is a cross-sectional view of a flexible FPC connector in the embodiment in a closed state.

[0025] Figure 5 It is a schematic diagram of a flexible FPC connector in an embodiment in a closed state after the insulating base is hidden.

[0026] Figure 6 It is a cross-sectional view of a flexible FPC connector in an embodiment in an open cover state.

[0027] Figure 7Schematic diagram of a flexibly used FPC connector in an open - cover state after hiding the insulating base in the embodiment.

[0028] Reference numerals:

[0029] Insulating base 1, wire slot 11, positioning groove 12;

[0030] Terminal 2;

[0031] Press - cover 3, unlocking part 31, unlocking slope 311, cover - closing linkage part 32, positioning boss 33;

[0032] Cover - controlling part 4, wire - clamping part 41, guiding slope 411, corner 412, substrate 42, fixing ear 421, floating piece 43, extending protrusion 44, relief groove 45, elbow 46;

[0033] FPC cable 5, locking groove 51. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Without conflict, the following embodiments and the features in the embodiments may be combined with each other.

[0035] A flexibly used FPC connector in this embodiment, as Figures 1 to 7 shown, includes an insulating base 1, a plurality of terminals 2 arranged on the insulating base 1, and a press - cover 3 hinged to the insulating base 1. In practice, the press - cover 3 can be changed to be hinged to the terminal 2. The insulating base 1 is a plastic part formed by injection molding. The insulating base 1 is provided with a wire slot 11 for inserting an external FPC cable 5 to electrically connect to the terminal 2.

[0036] In this embodiment, cover - controlling parts 4 are respectively arranged at both ends of the insulating base 1. Each cover - controlling part 4 includes a wire - clamping part 41 elastically embedded in the wire slot 11, which is used to cooperate with the locking groove 51 on the side of the FPC cable 5 to restrict the FPC cable 5 from being pulled out. So that in the cover - closed state, when the external FPC cable 5 is inserted into the wire slot 11, it overcomes the elastic force of the wire - clamping part 41 and abuts against its yielding position until the wire - clamping part 41 locks the FPC cable 5 in the plug - and - unplug direction. The up - and - down limit of the FPC cable 5 can be achieved through the opening height of the wire slot 11 or the press - cover 4 or the terminal 2 to prevent it from detaching from the wire - clamping part 41.

[0037] The pressure cover 3 is provided with an unlocking portion 31 and a cover-closing linkage portion 32. When the pressure cover 3 is opened, the unlocking portion 31 can drive the wire clamping portion 41 to move to release the limit on the FPC cable 5 in the plugging and unplugging direction; in the closed state, the cover-closing linkage portion 32 and the FPC cable 5 avoid each other in the plugging and unplugging trajectory; after the pressure cover 3 is opened, the cover-closing linkage portion 32 and the FPC cable 5 interfere with each other in the wire pulling trajectory, so that when the FPC cable 5 is pulled out, the cover-closing linkage portion 32 is driven to close the pressure cover 3.

[0038] Specifically, the control cover member 4 includes a base plate 42 and a floating plate 43. The floating plate 43 and the base plate 42 are arranged in a transverse U shape, so that the floating plate 43 can be elastically deformed up and down. The clamping line part 41 is arranged on the floating plate 43. When the pressing cover 3 is opened, the closing linkage part 32 presses down the floating plate 43.

[0039] Specifically, an extension protrusion 44 is provided on the side of the floating sheet 43 , the wire clamping portion 41 is located on the extension protrusion 44 , and a clearance groove 45 for the cover closing linkage portion 32 to pass through is reserved between the extension protrusion 44 and the floating sheet 43 .

[0040] Specifically, a guiding slope 411 rising along the direction of plugging is provided on the top of the wire clamping portion 41, and a corner 412 is formed at the tail end of the guiding slope 411 for blocking the FPC cable 5 in the direction of plugging and unplugging. When plugging, the FPC cable 5 presses against the guiding slope 411 to make the wire clamping portion 41 move down to make way, until the wire clamping portion 41 is embedded in the locking groove 51 of the FPC cable 5, thereby locking the FPC cable 5 in the direction of plugging and unplugging.

[0041] Specifically, the end of the floating sheet 43 is provided with an elbow 46 , and the unlocking portion 31 is provided with an unlocking inclined surface 311 . When the pressure cover 3 is opened, the unlocking inclined surface 311 slides and rubs with the elbow 46 to press the floating sheet 43 downward.

[0042] Specifically, the control cover 4 is an integrated hardware bending structure.

[0043] Specifically, the base sheet 42 has a fixing ear 421 extending downwardly, which is used to fix the entire connector to the peripheral circuit board.

[0044] Specifically, the gland 3 is provided with a positioning boss 33 , and the top of the insulating base 1 is provided with a positioning groove 12 . When the gland is in the closed state, the positioning boss 33 is embedded in the positioning groove 12 to guide the gland 3 .

[0045] Specifically, the insulating base 1 is provided with a blocking portion (not shown in the figure) for limiting the opening range of the pressure cover 3, so that the pressure cover 3 can be opened in one step, which is convenient for operation.

[0046] In the description of the present utility model, it is obvious that the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. The components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations.

[0047] Therefore, the above detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0048] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "in", "upper", "lower", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed when in use. It 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 cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0049] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "set", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A flexible FPC connector, comprising an insulating base (1), a plurality of terminals (2) arranged on the insulating base (1), and a gland (3) hinged to the insulating base (1) or the terminals (2), the insulating base (1) being provided with a wire insertion slot (11) for inserting a peripheral FPC cable (5) to electrically connect the terminals (2), wherein: The insulating base (1) is provided with a control cover (4), and the control cover (4) includes a wire clamping portion (41) elastically embedded in the wire insertion slot (11), so that when the peripheral FPC cable (5) is inserted into the wire insertion slot (11) in the closed state, the wire clamping portion (41) overcomes the elastic force of the wire clamping portion (41) and pushes it to give way until the wire clamping portion (41) locks the FPC cable (5) in the insertion and removal direction; The pressure cover (3) is provided with an unlocking portion (31) and a cover-closing linkage portion (32); when the pressure cover (3) is opened, the unlocking portion (31) can drive the wire clamping portion (41) to move, so as to release the position restriction on the FPC cable (5) in the plugging and unplugging direction; in the closed state, the cover-closing linkage portion (32) and the FPC cable (5) avoid each other in the plugging and unplugging track; after the pressure cover (3) is opened, the cover-closing linkage portion (32) and the FPC cable (5) interfere with each other in the wire pulling track, so that when the FPC cable (5) is pulled out, the cover-closing linkage portion (32) is driven to close the pressure cover (3).

2. A flexible FPC connector according to claim 1, characterized in that: The cover member (4) comprises a base sheet (42) and a floating sheet (43). The floating sheet (43) and the base sheet (42) are arranged in a transverse U-shape, so that the floating sheet (43) can be elastically deformed up and down. The clamping line portion (41) is arranged on the floating sheet (43). When the pressure cover (3) is opened, the cover closing linkage portion (32) presses down the floating sheet (43).

3. The flexible FPC connector according to claim 2, characterized in that: An extension protrusion (44) is provided on the side of the floating sheet (43), the wire clamping portion (41) is located on the extension protrusion (44), and a clearance groove (45) for the cover closing linkage portion (32) to pass through is reserved between the extension protrusion (44) and the floating sheet (43).

4. A flexible FPC connector according to claim 1 or 2, characterized in that: A guide slope (411) rising along the wire insertion direction is provided at the top of the wire clamping portion (41), and a tail end of the guide slope (411) forms a corner (412) for blocking the FPC cable (5) in the insertion and removal direction.

5. The flexible FPC connector according to claim 2, characterized in that: The end of the floating sheet (43) is provided with a bend (46), and the unlocking portion (31) is provided with an unlocking inclined surface (311). When the pressure cover (3) is opened, the unlocking inclined surface (311) and the bend (46) slide and rub against each other to press the floating sheet (43) downward.

6. The flexible FPC connector according to claim 1, characterized in that: The control cover components (4) are respectively arranged at the two end portions of the insulating base (1).

7. The flexible FPC connector according to claim 1, characterized in that: The control cover (4) is an integrated hardware bending structure.

8. The flexible FPC connector according to claim 1, characterized in that: The base plate (42) has a fixing ear (421) extending downward.

9. The flexible FPC connector according to claim 1, characterized in that: The pressure cover (3) is provided with a positioning boss (33), and the top of the insulating base (1) is provided with a positioning groove (12). In the closed state, the positioning boss (33) is embedded in the positioning groove (12).

10. The flexible FPC connector according to claim 1, characterized in that: The insulating base (1) is provided with a blocking portion for limiting the lifting range of the pressure cover (3).

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