High speed flexible circuit board connector

Abstract

The application discloses a high-speed flexible circuit board connector, relates to the technical field of electric connectors, and aims to solve the problems of unstable electric contact, high impedance, difficulty in opening and closing the cover, and difficulty in sensing, which result in unstable signal transmission of the connector and unstable structure. The high-speed flexible circuit board connector comprises an insulating base, a row of conductive terminals and a cover, wherein the contact part of the conductive terminal is arranged in a wavy shape, the holding force of the conductive terminal on the flexible circuit board can be improved, stable contact can be formed between the conductive terminal and the flexible circuit board, and the electric contact effect with low impedance is achieved. In addition, hooks are arranged on the base to hold the hinge part of the cover, so that the cover cannot fall off. The cover also adopts a built-in clamping structure, the hinge part can be covered, the cover cannot fall off, and normal work of the cover is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical connectors, in particular to a high-speed flexible printed circuit board connector. BACKGROUND

[0002] High-speed transmission refers to the time scale rate of signal transmission reaching the megahertz band in modern computers, information skills and network skills, and the pulse time reaching sub-millisecond, so it is necessary to provide a flexible printed circuit board connector that can meet the requirements of high-speed transmission.

[0003] The high-speed flexible printed circuit board connector faces smaller and more concise opening requirements, which requires the product to be more precise, small pitch, high density, high-speed transmission and high-frequency direction opening. These requirements have brought high challenges to the structure design and manufacturing technology.

[0004] Therefore, it is necessary to provide a high-speed flexible printed circuit board connector with reliable electrical contact, safe and easy-to-operate cover opening and closing. SUMMARY

[0005] The high-speed flexible printed circuit board connector provided by the embodiment of the present application is used to solve the problems of unstable electrical contact, high impedance, difficult cover opening and closing, and not easy to perceive, which leads to unstable signal transmission and unstable structure of the connector.

[0006] To achieve the above purpose, the technical scheme is adopted as follows.

[0007] One embodiment of the present application provides a high-speed flexible printed circuit board connector, which comprises an insulating base, a row of conductive terminals and a cover. The insulating base has a strip-shaped base, a flat platform horizontally extending from the base and having a height lower than the base, and two side portions horizontally extending from the base and located above the ends of the platform. An upper groove is formed in the base and penetrates the front and back surfaces of the base. A lower groove is formed in the top surface of the platform. A holding cavity is formed between the side portions and the platform. Each of the conductive terminals is mounted on the insulating base. Each of the conductive terminals has an upper arm portion, a lower arm portion oppositely arranged with the upper arm portion, a connecting portion connecting the upper arm portion and the lower arm portion, and a tail portion extending backward from the connecting portion. The upper arm portion is inserted into the upper groove and extends out of the upper groove to above the platform. The lower arm portion is inserted into the lower groove. The lower arm portion is provided with a wavy contact portion which protrudes out of the top surface of the platform. The connecting portion is fixed in the base, and the tail portion extends behind the base. The cover is rotatably mounted on the insulating base. The cover has a row of through grooves penetrating the upper and lower surfaces of the cover, and two pivot portions located at the ends of the cover and protruding outward. The pivot portions are mounted in the holding cavities, and the through grooves are used to accommodate the upper arm portions of the conductive terminals. A flat accommodating space is formed between the cover and the platform, and is used to insert a flexible printed circuit board.

[0008] In some embodiments of the present application, the contact portion of the conductive terminal comprises at least two upward protruding contacts used to form electrical contact with the flexible printed circuit board.

[0009] In some embodiments of the present application, the contact portion comprises a primary contact and a secondary contact arranged in front and back. The height of the primary contact is greater than that of the secondary contact.

[0010] In some embodiments of the present application, the top of the holding cavity is formed with a hook extending toward the holding cavity. When the pivot portion extends into the holding cavity, the pivot portion passes over the hook and is rotatably limited in the holding cavity.

[0011] In some embodiments of the present application, the bottom of the holding cavity is formed with a shoulder extending toward the holding cavity. When the pivot portion extends into the holding cavity, the pivot portion reaches the shoulder and is rotatably limited in the holding cavity.

[0012] In some embodiments of the present application, the front end of the upper arm is formed with a hook; the rear end of the cover is provided with a row of rotating shafts, which are arranged correspondingly to the through slots, when the upper arm is inserted into the through slots, the hook is hooked on the corresponding rotating shaft, and the rotating shaft is rotatably clamped in the corresponding hook.

[0013] In some embodiments of the present application, the rear end of the cover is further provided with a row of pressing parts, which are arranged in a row and spaced from the rotating shafts; the pressing parts are used to press the flexible circuit board when the cover is in the self-locking state and the closed state.

[0014] In some embodiments of the present application, the cross section of the pressing part is in the shape of a pyramid.

[0015] In some embodiments of the present application, the length between the front end of the cover and the rotating shaft is greater than the length of the upper arm of the conductive terminal.

[0016] In some embodiments of the present application, the length between the front end of the cover and the rotating shaft is 2.5 times the length of the upper arm of the conductive terminal.

[0017] Compared with the prior art, in one embodiment of the high-speed flexible circuit board connector of the present application, the contact part of the conductive terminal is arranged in a wave shape, especially the contact part with a double contact structure, which can improve the holding force of the flexible circuit board and form stable contact with the flexible circuit board, while having the effect of low-impedance electrical contact. In addition, in one embodiment, by arranging the hook on the base to hold the pivot part of the cover, the cover can be prevented from falling off. For the cover, a built-in clamping structure is also used, such as covering the pivot part in the up-down direction and the assembly direction, which can prevent the cover from falling off and ensure the normal operation of the cover. In addition, the high-speed flexible circuit board connector of the present application also has the advantages of thin product, transmission rate improved to 10 Gbps, can achieve zero insertion force effect, and effectively prevents the cover from being not buckled in place. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective structural schematic diagram of one embodiment of the high-speed flexible circuit board connector of the present application.

[0019] Figure 2 It is an exploded structural schematic diagram of one embodiment of the high-speed flexible circuit board connector of the present application.

[0020] Figure 3 It is a cross-sectional structural schematic diagram of one embodiment of the high-speed flexible circuit board connector of the present application.

[0021] Figure 4 A diagram showing a cover of one embodiment of the high-speed flexible printed board connector of the present application in an open state, in which a flexible printed board is inserted into a flat receiving space.

[0022] Figure 5 A diagram showing a cover of one embodiment of the high-speed flexible printed board connector of the present application in a self-locking state, in which the cover presses down the flexible printed board.

[0023] Figure 6 A diagram showing a cover of one embodiment of the high-speed flexible printed board connector of the present application in a closed state, in which the cover presses down the flexible printed board.

[0024] The main reference numerals in the drawings of the present application are explained as follows:

[0025] High-speed flexible printed board 2 connector 1

[0026] Insulating base 10 base portion 11

[0027] Upper groove 110 platform portion 12

[0028] Lower groove 120 side portion 13

[0029] Holding cavity 14 hook 140

[0030] Shoulder 141 conductive terminal 20

[0031] Upper arm portion 21 hook 210

[0032] Lower arm portion 22 connecting portion 23

[0033] Tail portion 24 contact portion 25

[0034] Main contact 250 sub-contact 251

[0035] Cover 30 through groove 31

[0036] Pivot portion 32 flat receiving space 33

[0037] Rotating shaft portion 34 abutting portion 35

[0038] Fixed plate 40 flexible printed board 2 DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0040] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0041] Please refer to Figures 1 to 3 As shown, Figure 1 This is a schematic diagram of the three-dimensional structure of one embodiment of the high-speed flexible circuit board connector 1 of the present application. Figure 2 This is a schematic diagram of the exploded structure of one embodiment of the high-speed flexible circuit board connector 1 of the present application. Figure 3 This is a schematic cross-sectional view of one embodiment of a high-speed flexible circuit board connector 1 of the present application. The high-speed flexible circuit board connector 1 of one embodiment of the present application comprises an insulating base 10, a row of conductive terminals 20, and a cover 30. In this embodiment, the high-speed flexible circuit board connector 1 further comprises a pair of fixing plates 40 disposed on either side of the insulating base 10.

[0042] like Figure 2 As shown, the insulating base 10 has an elongated base 11, a flat platform portion 12 extending horizontally from the base 11 and lower in height than the base 11, and two side portions 13 extending horizontally from the base 11 and located above both ends of the platform portion 12; a row of upper grooves 110 are formed on the base 11 and pass through the front and rear surfaces of the base 11; a row of exposed lower grooves 120 are formed on the top surface of the platform portion 12; and a retaining cavity 14 is formed between the side portions 13 and the platform portion 12.

[0043] In one embodiment, Figure 2As shown, the top of the holding cavity 14 is formed with a hook 140 extending towards the holding cavity 14, and the bottom of the holding cavity 14 is formed with a shoulder 141 protruding towards the holding cavity 14. The hook 140 is a built-in engagement structure designed for the cover 30, which can avoid the cover 30 from falling off and ensure the normal operation of the cover 30. The detailed engagement relationship between the hook 140 and the cover 30 will be described later.

[0044] As shown in Figure 3 Each of the conductive terminals 20 is mounted to the insulating base 10, and each of the conductive terminals 20 has an upper arm portion 21, a lower arm portion 22 arranged opposite to the upper arm portion 21, a connecting portion 23 connecting the upper arm portion 21 and the lower arm portion 22, and a tail portion 24 extending rearward from the connecting portion 23; the upper arm portion 21 is inserted into the upper channel 110 and extends out of the upper channel 110 to above the platform portion 12; the lower arm portion 22 is inserted into the lower channel 120, and the lower arm portion 22 is provided with a wavy contact portion 25 protruding out of the top surface of the platform portion 12; the connecting portion 23 is fixed in the base portion 11, and the tail portion 24 extends rearward of the base portion 11.

[0045] In one embodiment, as shown in Figure 3 The contact portion 25 of the conductive terminal 20 includes at least two upwardly protruding contact points, such as a primary contact point 250 and a secondary contact point 251 arranged in front of and behind each other. The contact portion 25 is used to form electrical contact with the flexible circuit board 2. The height of the primary contact point 250 is greater than the height of the secondary contact point 251. The wavy contact portion 25 of the conductive terminal 20, especially the double contact point structure, can improve the holding force of the conductive terminal 20 on the flexible circuit board 2, form stable contact with the flexible circuit board 2, and have low impedance electrical contact effect.

[0046] In one embodiment, as shown in Figure 3 The front end of the upper arm portion 21 of the conductive terminal 20 is formed with a hook 210 used to cooperate with the cover 30. The detailed cooperation will be described later.

[0047] As shown in Figure 2 and Figure 3 The cover 30 is rotatably mounted to the insulating base 10, and the cover 30 has a row of through grooves 31 penetrating the upper and lower surfaces of the cover 30, and two pivot portions 32 located at the two ends of the cover 30 and protruding outward; the pivot portions 32 are mounted in the holding cavities 14, and the through grooves 31 are used to accommodate the upper arm portions 21 of the conductive terminals 20; a flat accommodating space 33 is formed between the cover 30 and the platform portion 12, and is used to accommodate a flexible circuit board 2 (seeFigure 4 ) inserted.

[0048] In one embodiment, when the pivot portion 32 extends into the holding cavity 14, the pivot portion 32 passes over the protrusion 140 to the shoulder 141, and is rotatably limited in the holding cavity 14. By buckling the pivot portion 32 with the protrusion 140, the cover 30 can be prevented from falling off, and the built-in snap structure for the cover 30 can ensure normal operation of the cover 30. The pivot portion 32 is covered by the insulating base 10 in the up-down direction and the assembly direction, and the cover 30 can be prevented from falling off due to deformation of the entire product in a flat strip shape.

[0049] In one embodiment, as shown in Figure 2 and Figure 3 , the rear end of the cover 30 is provided with a row of pivot portions 34, which are arranged corresponding to the through slot 31. When the upper arm portion 21 of the conductive terminal 20 extends into the through slot 31, the hook 210 is buckled on the corresponding pivot portion 34, and the pivot portion 34 is rotatably clamped into the corresponding hook 210.

[0050] In one embodiment, as shown in Figure 3 , the rear end of the cover 30 is further provided with a row of pressing portions 35, which are in the shape of a pyramid in cross section. The pressing portions 35 are arranged in a row and spaced apart from the pivot portions 34, and are used to press the flexible circuit board 2 when the cover 30 is in the self-locking state and the closed state.

[0051] The three working states of the cover 30 will be described in detail below.

[0052] The cover 30 has an open state, a self-locking state, and a closed state.

[0053] As shown in Figure 4 , when the cover 30 is in the open state, the angle A between the cover 30 and the platform portion 12 is greater than 90 degrees, and the flat accommodation space 33 is exposed between the pressing portion 35 and the platform portion 12 for insertion of the flexible circuit board 2. That is, when the cover 30 is opened, the flexible circuit board 2 can be easily inserted into the flat accommodation space 33, achieving a zero insertion force effect.

[0054] As shown in Figure 5As shown, when the cover 30 is in the self-locking state, the angle A between the cover 30 and the platform portion 12 is less than 90 degrees, for example, approximately 40 degrees. The flexible circuit board 2 is located within the flat accommodating space 33, and the top of the pressing portion 35 presses down on the flexible circuit board 2. At this point, the operator can stop operating (stop pressing or rotating the cover 30), and the cover 30 will automatically rotate toward the platform portion 12 to switch to the closed state.

[0055] like Figure 6 As shown, when the cover 30 is in the closed state, the cover 30 is parallel to the platform portion 12 , the flexible circuit board 2 is located in the flat accommodating space 33 and one side of the pressing portion 35 presses against the flexible circuit board 2 .

[0056] When the cover body 30 is moved from the open state to the closed state or from the closed state to the open state, because the cover body 30 is provided with the pyramid-shaped pressing portion 35, the cover body 30 can have a good feel (with a "click" prompt sound), which can achieve zero insertion force and effectively prevent the cover body 30 from not being properly fastened.

[0057] Furthermore, in one embodiment, the length L1 between the front end of the cover 30 and the hinge portion 34 is greater than the length L2 of the upper arm portion 21 of the conductive terminal 20. For example, the length between the front end of the cover 30 and the hinge portion 34 is 2.5 times the length of the upper arm portion 21 of the conductive terminal 20. This length ratio allows leveraging to achieve significant results with minimal effort, enabling easy opening and closing.

[0058] In summary, in one embodiment of the high-speed flexible circuit board connector 1 of the present application, the contact portion 25 of the conductive terminal 20 is configured in a wavy shape. In particular, the contact portion 25 employs a dual-contact structure, which enhances its retention force on the flexible circuit board 2 and enables stable contact with the flexible circuit board 2 while providing low-impedance electrical contact. Furthermore, in one embodiment, a protruding hook 140 is provided on the insulating base 10 to retain the pivotal portion 32 of the cover 30, thereby preventing the cover 30 from falling off. The cover 30 also employs a recessed snap-fit ​​structure, for example, covering the pivotal portion 32 in the vertical and assembly directions, thereby preventing the cover 30 from falling off and ensuring proper operation. Furthermore, the high-speed flexible circuit board connector 1 of the present application offers the advantages of a slim product, a transmission rate of up to 10 Gbps, and a zero insertion force, effectively preventing the cover 30 from being improperly fastened.

[0059] In the description of the present specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in an appropriate manner.

[0060] The above description is merely illustrative of the application and is not intended to limit the scope of the application. Any changes or modifications that can be made to the application in accordance with the principles of the application should also be included within the scope of the application. Accordingly, the scope of the application should be determined by the scope of the claims.

Claims

1. A high-speed flexible circuit board connector, comprising an insulating base, a row of conductive terminals, and a cover, characterized in that: The insulating base comprises an elongated base portion, a flat platform portion extending horizontally from the base portion and lower in height than the base portion, and two side portions extending horizontally from the base portion and located above both ends of the platform portion; a row of upper grooves is formed on the base portion and passes through the front and rear surfaces of the base portion; a row of lower grooves is formed on the top surface of the platform portion; and a retaining cavity is formed between the side portions and the platform portion. Each of the conductive terminals is mounted on the insulating base, and comprises an upper arm portion, a lower arm portion disposed opposite the upper arm portion, a connecting portion connecting the upper arm portion and the lower arm portion, and a tail portion extending rearwardly from the connecting portion; wherein the upper arm portion is inserted into the upper groove and extends from the upper groove to above the platform portion; the lower arm portion is inserted into the lower groove, and the lower arm portion is provided with a wavy contact portion, which protrudes from the top surface of the platform portion; the connecting portion is fixed to the base portion, and the tail portion extends rearwardly of the base portion; The cover body is rotatably mounted on the insulating base, and the cover body has a row of through slots running through the upper and lower surfaces of the cover body, and two pivotal portions located at both ends of the cover body and protruding outward; the pivotal portions are mounted in the holding cavity, and the through slots are used to accommodate the upper arm portions of the conductive terminals; a flat accommodating space is formed between the cover body and the platform portion for inserting a flexible circuit board.

2. The high-speed flexible circuit board connector according to claim 1, characterized in that: The contact portion of the conductive terminal includes at least two contacts protruding upwards, and is used to form electrical contact with the flexible circuit board.

3. The high-speed flexible circuit board connector according to claim 2, characterized in that: The contact portion includes a main contact and a secondary contact arranged in front and back, and the height of the main contact is greater than the height of the secondary contact.

4. The high-speed flexible circuit board connector according to claim 1, characterized in that: A convex hook extending toward the holding cavity is formed on the top of the holding cavity. When the pivoting portion extends into the holding cavity, the pivoting portion passes over the convex hook and is rotatably limited in the holding cavity.

5. The high-speed flexible circuit board connector according to claim 4, characterized in that: The bottom of the holding cavity is formed with a shoulder extending toward the holding cavity. When the pivoting portion extends into the holding cavity, the pivoting portion reaches the shoulder and is rotatably confined in the holding cavity.

6. The high-speed flexible circuit board connector according to claim 1, characterized in that: The front end of the upper arm is formed with a hook; A row of rotating shafts are provided at the rear end of the cover body, and the rotating shafts are provided corresponding to the through slots. When the upper arm portion extends into the through slots, the hooks are buckled on the corresponding rotating shafts, and the rotating shafts can be rotatably engaged in the corresponding hooks.

7. The high-speed flexible circuit board connector according to claim 6, characterized in that: The rear end of the cover body is further provided with a row of pressing parts, which are spaced apart from the rotating shaft parts and arranged in a row; the pressing parts are used to press down the flexible circuit board when the cover body is in the self-locking state and the closed state.

8. The high-speed flexible circuit board connector according to claim 7, characterized in that: The cross section of the pressing portion is pyramid-shaped.

9. The high-speed flexible circuit board connector according to claim 6, characterized in that: The length between the front end of the cover and the rotating shaft portion is greater than the length of the upper arm portion of the conductive terminal.

10. The high-speed flexible circuit board connector according to claim 6, characterized in that: The length between the front end of the cover and the rotating shaft is 2.5 times the length of the upper arm of the conductive terminal.

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