Card positioning device for connector, circuit board and circuit board connection assembly

Abstract

This application belongs to the technical field of circuit board connection, and particularly relates to a card position device for a connector, a circuit board, and a circuit board connection assembly. The card position device for the connector includes: a card position part and a limit part. The card position part is used to be arranged on the side where the opening of the connector is located; the limit part is used to relatively limit the card position part and the connector, so as to limit the card position part outside the opening of the connector. The card position device of this application can improve the yield rate of the connection between the circuit board and the connector and improve the accuracy of the connection between the circuit board and the connector.

Description

Technical Field

[0001] This application belongs to the technical field of circuit board connection, and particularly relates to a positioning device for a connector, a circuit board, and a circuit board connection assembly. Background Art

[0002] Currently, display systems have extensive applications in fields such as digital communication products, portable electronic products, computer peripheral devices, measuring instruments, and automotive electronics. Common examples include mobile phones, digital cameras, handheld game consoles, audio systems, etc. The connection between the display screen and the driving circuit of the display system is mainly achieved through connectors. There are mainly two types of connectors, namely BTB connectors and ZIF connectors. Among them, for a ZIF connector, a flexible printed circuit board (FPC) with a gold finger at one end is inserted into the connector. When inserting the FPC into the connector, due to manual differences and different insertion forces, the insertion position of the flexible circuit board is prone to be abnormal, resulting in display abnormalities. Summary of the Invention

[0003] In view of this, the main technical problem to be solved by this application is to provide a positioning device for a connector, a circuit board, and a circuit board connection assembly, which can improve the accuracy of the insertion position of the flexible circuit board.

[0004] To solve the above technical problem, a technical solution adopted by this application is: A positioning device for a connector includes a positioning portion and a limiting portion. The positioning portion is used to be arranged on the side where the connector opening is located; the limiting portion is used to relatively limit the positioning portion and the connector, so as to limit the positioning portion outside the connector opening.

[0005] By providing the limiting portion and the positioning portion, the limiting portion can limit the positioning portion outside the connector opening, enabling the positioning portion to cooperate with the positioning portion of the circuit board, so that the connection end of the circuit board can be exactly inserted into the connector opening, avoiding the curling of the circuit board caused by the over-insertion of the connection end of the circuit board into the connector opening, which can improve the service life of the circuit board; improve the accuracy of the connection between the circuit board and the connector, and improve the connection yield rate between the circuit board and the connector.

[0006] Wherein, the number of the positioning portions is two, and the two positioning portions are used to be arranged on both sides along the width direction of the connector opening, and the orthographic projection of the positioning portion on the plane where the opening is located overlaps with the opening at least partially. This can improve the occurrence of the situation of oblique insertion during the insertion of the circuit board.

[0007] Wherein, the orthographic projection of the top end of the positioning portion on the plane where the opening is located is between the bottom edge and the top edge of the connector opening, and the top edge and the bottom edge are opposite to each other; or, the top end of the positioning portion is flush with the bottom edge of the connector opening. By defining the height position of the top end of the positioning portion, the positioning portion can be better matched with the positioning portion of the circuit board.

[0008] Among them, the clamping part is used to cooperate with the positioning part of the circuit board so that the positioning part is not flush with the circuit board body. It has good identifiability, and it can be observed whether the clamping part and the positioning part are cooperating.

[0009] Among them, the clamping part is of a columnar structure, and the clamping part cooperates better with the sheet-shaped positioning part.

[0010] Among them, the clamping part is used to cooperate with the positioning part of the circuit board so that at least part of the clamping part is located within the positioning part. It can sense or identify the cooperation between the clamping part and the positioning part.

[0011] Among them, the cross-section of the top end of the clamping part is smaller than the cross-section of the bottom end of the clamping part, so that the connection state between the clamping part and the limiting part is better, the structure of the positioning part is smaller, and the cooperation effect between the clamping part and the positioning part is better.

[0012] Among them, the distance between the clamping part and the first connection electrode in the connector is configured such that when the second connection electrode of the circuit board is connected to the first connection electrode after the circuit board is inserted into the connector, the clamping part is aligned with the positioning part of the circuit board. By reasonably defining the position of the clamping part, when the first connection electrode and the second connection electrode are connected, the clamping part and the positioning part just cooperate.

[0013] This application also includes a second technical solution, a circuit board for cooperating with the above-mentioned clamping device. The circuit board includes a circuit board body, and the circuit board body includes a first main body part and a second main body part. The connection end of the first main body part is used to be inserted into the connector opening; a positioning part is provided on the second main body part, and the distance between the positioning part and the connection end of the first main body part in the insertion direction is greater than the insertion depth of the connector; among them, the positioning part is used to cooperate with the clamping part of the clamping device.

[0014] By providing a positioning part on the second main body part of the circuit board, when the connection end of the first main body part is inserted into the connector opening, the second main body part and the positioning part are located outside the connector, and the positioning part can cooperate with the clamping part of the clamping device to indicate that the circuit board just enters the connector opening, avoiding the occurrence of curling caused by the circuit board being inserted into the connector opening or the situation of poor connection caused by the circuit board being inserted too shallowly.

[0015] Among them, the length of the first main body part in the direction perpendicular to the insertion direction is greater than the length of the second main body part in the direction perpendicular to the insertion direction; the positioning part is used to cooperate with the clamping part of the clamping device so that when the first main body part is inserted into the connector opening, the positioning part is not flush with the circuit board body. By reasonably setting the position and setting method of the positioning part, the positioning part is of a sheet-shaped structure and cooperates with the clamping part when it is not flush with the circuit board body, which has good identifiability.

[0016] Wherein, a first cut is provided between the second main body portion and the first main body portion and extends in the insertion direction. The first cut extends from one end of the second main body portion away from the connection end towards the connection end and terminates at a preset termination position, which is located between the positioning portion and the connection end. By defining the position and length of the first cut, the position of the positioning portion is defined, such that the positioning portion matches well with the clamping portion.

[0017] Wherein, a first cut is provided between the first main body portion and the positioning portion and extends in a direction perpendicular to the insertion direction. The first cut extends from a side of the first main body portion facing away from the second main body portion towards the second main body portion and reaches the side of the first main body portion close to the second main body portion. The first cut provided between the first main body portion and the positioning portion also facilitates the cooperation between the positioning portion and the clamping portion.

[0018] Wherein, the positioning portion is a hole-shaped structure or a groove-shaped structure, such that the positioning portion can cooperate with the clamping portion. The positioning portion can be sleeved on the clamping portion to achieve the cooperation between the positioning portion and the clamping portion.

[0019] This application further includes a third technical solution, a circuit board connection assembly, including a connector, the above-mentioned clamping device, and the above-mentioned circuit board. The connector includes an opening. The clamping device includes a clamping portion and a limiting portion. The circuit board includes a positioning portion. Wherein, the limiting portion of the clamping device limits the clamping portion outside the opening of the connector. The circuit board is configured to be inserted into the opening of the connector, and the positioning portion cooperates with the clamping portion to indicate that the circuit board is located in the opening of the connector.

[0020] By providing the clamping device, the clamping portion of the clamping device can be restricted outside the opening of the connector in the circuit board connection assembly. By providing the positioning portion on the circuit board, when the circuit board is inserted into the opening of the connector, the circuit board is exactly located in the opening of the connector, that is, the second connection electrode of the circuit board is exactly connected to the second connection electrode of the connector, avoiding the curling of the circuit board caused by the over-insertion of the connection end of the circuit board into the opening of the connector, and improving the service life of the circuit board. It can also avoid the inaccurate alignment between the circuit board and the connector caused by the incomplete insertion of the connection end of the circuit board into the opening of the connector, and improve the connection yield between the circuit board and the connector.

[0021] The beneficial effects of the present application are as follows: Different from the prior art, the positioning device of the present application is provided with a limiting portion and a positioning portion, so that the limiting portion can limit the positioning portion outside the opening of the connector, and the positioning portion can cooperate with the positioning portion of the circuit board to indicate that the connection end of the circuit board is exactly inserted into the opening of the connector, avoiding the curling of the circuit board caused by the over-insertion of the connection end of the circuit board into the opening of the connector, and improving the service life of the circuit board; it can also avoid the inaccurate alignment between the circuit board and the connector caused by the incomplete insertion of the connection end of the circuit board into the opening of the connector, improve the yield of the connection between the circuit board and the connector, and improve the accuracy of the connection between the circuit board and the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a top view structural schematic diagram of an embodiment of the positioning device of the present application;

[0023] Figure 2 is a top view structural schematic diagram of an embodiment of the positioning device and the connector of the present application;

[0024] Figure 3 is Figure 2 front view structural schematic diagram;

[0025] Figure 4 is a top view structural schematic diagram of an embodiment of the circuit board connection assembly of the present application;

[0026] Figure 5 is a side view structural schematic diagram of an embodiment of the circuit board connection assembly of the present application;

[0027] Figure 6 is a front view structural schematic diagram of another embodiment of the positioning device and the connector of the present application;

[0028] Figure 7 is a side view structural schematic diagram of another embodiment of the circuit board connection assembly of the present application;

[0029] Figure 8 is a side view structural schematic diagram of still another embodiment of the circuit board connection assembly of the present application;

[0030] Figure 9 is a top view structural schematic diagram of another embodiment of the positioning device and the connector of the present application;

[0031] Figure 10 is Figure 9 front view structural schematic diagram;

[0032] Figure 11 is a top view structural schematic diagram of another embodiment of the circuit board connection assembly of the present application;

[0033] Figure 12 is a planar structural schematic diagram of an embodiment of the circuit board of the present application;

[0034] Figure 13 It is a schematic plan view of another embodiment of the circuit board of the present application;

[0035] Figure 14 It is a schematic plan view of still another embodiment of the circuit board of the present application.

[0036] Wherein, 100 is a card position device; 110 is a card position part; 120 is a limit part; 121 is a top end; 130 is a gap; 200 is a connector; 210 is an opening; 220 is a receiving cavity; 230 is a first connection electrode; W1 is a width direction; 240 is a bottom edge; 250 is a top edge; 300 is a circuit board; 310 is a circuit board main body; 320 is a first main body part; 321 is a connection end; 330 is a second main body part; 340 is a positioning part;

[0037] C1 is an insertion direction; 350 is a second connection electrode; 360 is a first notch; 370 is a second notch. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application.

[0039] As Figure 1 、 Figure 2 and Figure 3 shown, to solve the above technical problems, one technical solution adopted by the present application is: a card position device 100 for a connector 200, including a card position part 110 and a limit part 120. The card position part 110 is used to be arranged on the side where the opening 210 of the connector 200 is located; the limit part 120 is used to relatively limit the card position part 110 and the connector 200, so as to limit the card position part 110 outside the opening 210 of the connector 200.

[0040] Continuing as Figures 1 - 4As shown in the figure, in the embodiment of the present application, the positioning device 100 sets the limiting portion 120 and the positioning portion 110, so that the limiting portion 120 can limit the positioning portion 110 outside the opening 210 of the connector 200, and the positioning portion 110 can cooperate with the positioning portion 340 of the circuit board 300, indicating that the connection end 321 of the circuit board 300 is just inserted into the opening 210 of the connector 200, avoiding the curling of the circuit board 300 caused by the over-insertion of the connection end 321 of the circuit board 300 into the opening 210 of the connector 200, and improving the service life of the circuit board 300; it can also avoid the inaccurate alignment between the circuit board 300 and the connector 200 caused by the incomplete insertion of the connection end 321 of the circuit board 300 into the opening 210 of the connector 200, improving the connection yield between the circuit board 300 and the connector 200, improving the connection accuracy between the circuit board 300 and the connector 200, and further improving the connection yield between the circuit board 300 and the display screen, and improving the display yield.

[0041] It should be noted that, as Figure 5 shown, in the embodiment of the present application, the connector 200 has a receiving cavity 220, one side of the receiving cavity 220 has an opening 210, and a first connection electrode 230 is provided in the receiving cavity 220. In the embodiment of the present application, the circuit board 300 involved is a flexible circuit board 300, the connection end 321 of the flexible circuit board has a second connection electrode 350, the second connection electrode 350 in the embodiment of the present application is a gold finger, and the embodiment of the present application does not limit the type of the second connection electrode 350.

[0042] In the embodiment of the present application, as Figure 3 shown, the positioning device 100 can be adapted to different models of connectors 200, as long as the positioning portion 110 can be limited outside the opening 210 of the connector 200, so that the positioning portion 110 and the positioning portion 340 of the circuit board 300 can cooperate with each other, making the positioning device 100 in the embodiment of the present application have a wide range of uses.

[0043] In an embodiment of the present application, as Figure 1 、 Figure 2 and Figure 5As shown, the limiting part 120 is a snap type and can be snapped onto the bottom of the connector 200. The opening 210 of the connector 200 is located on the side, so that the positioning part 110 is located outside the opening 210 of the connector 200, that is, the positioning part 110 is located outside the side where the opening 210 of the connector 200 is located. On the one hand, the limiting part 120 in the embodiment of the present application serves to limit the positioning part 110 outside the opening 210 of the connector 200, and on the other hand, it serves to fix the positioning device 100 to the connector 200. In the embodiment of the present application, the limiting part 120 and the connector 200 are detachably connected, so that the positioning device 100 can be removed after the circuit board 300 is connected to the connector 200, avoiding the positioning device 100 from affecting the use of the circuit board 300; in other embodiments, the limiting part 120 and the connector 200 are detachably connected, and after the circuit board 300 is connected to the connector 200, the positioning device 100 may not be removed either.

[0044] In another embodiment of the present application, as Figure 1 and Figure 6 shown, the limiting part 120 can also be snapped onto the top surface of the connector 200, and it can also make the positioning part 110 located outside the opening 210 of the connector 200; or, the limiting part 120 can be snapped onto the side wall of the connector 200, so that the positioning part 110 is located outside the opening 210 of the connector 200. The embodiments of the present application are only examples to illustrate the structure of the limiting part 120, and do not limit the specific structure of the limiting part 120. The structure of the limiting part 120 can be in other forms.

[0045] In the embodiment of the present application, as Figures 1 - 4 shown, the number of the positioning parts 110 is two. The two positioning parts 110 are used to be arranged on both sides along the width direction W1 of the opening 210 of the connector 200, and the orthographic projection of the positioning part 110 on the plane where the opening 210 is located overlaps at least partially with the opening 210. In the embodiment of the present application, the width direction W1 of the opening 210 of the connector 200 refers to the direction of the intersection line of the plane where the circuit board 300 is located and the plane where the opening 210 of the connector 200 is located when the circuit board 300 is inserted into the opening 210 of the connector 200. Specifically, as Figure 3 shown, the width direction W1 of the opening 210 of the connector 200 refers to the direction from the left side to the right side of the opening. Continuing as Figures 1 - 4As shown, in the embodiment of the present application, the number of the locking portions 110 is two, so that a locking portion 110 can be set on each side of the opening 210 of the connector 200, and the circuit board 300 is also provided with two positioning portions 340, so that the two locking portions 110 and the two positioning portions 340 are locked and cooperated with each other to prevent the circuit board 300 from having one side tilted and not connected well and the other side not tilted during the insertion process, that is, the occurrence of oblique insertion caused by the circuit board 300 during the insertion process can be improved. By providing two positioning parts 110, by observing the matching of the two positioning parts 110 with the positioning parts 340, the insertion condition of the circuit board 300 and the connector can be prompted, so that the staff can judge the insertion condition of the circuit board 300 and the connector according to the matching of the two positioning parts 110 with the positioning parts 340; when the two positioning parts 110 are well matched with the positioning parts 340, it means that the circuit board 300 is just inserted into the connector 200; when one positioning part 110 is well matched with the positioning part 340 and the other positioning part 110 is not well matched with the positioning part 340, that is, one side of the circuit board 300 is tilted and the other side is not tilted, it means that the circuit board 300 is obliquely inserted and the circuit board 300 is not well inserted into the connector 200; when the two positioning parts 110 are not well matched with the positioning parts 340, that is, both sides of the circuit board 300 are not well inserted into the connector 200, it means that the circuit board 300 is not well inserted into the connector 200. In the embodiment of the present application, the orthographic projection of the positioning portion 110 on the plane where the opening 210 is located overlaps at least partially with the opening 210, which can make the positioning portion 340 of the circuit board 300 easier to manufacture, reduce the waste of materials of the circuit board 300 or the process of manufacturing the circuit board 300. In other embodiments, the orthographic projection of the positioning portion 110 on the plane where the opening 210 is located overlaps at least partially with the non-opening 210 area of the connector 200.

[0046] In one embodiment of the present application, Figure 3 and Figure 5 As shown, the orthographic projection of the top end 111 of the locking portion 110 on the plane where the opening 210 is located is located between the bottom edge 240 and the top edge 250 of the opening 210 of the connector 200. In the embodiment of the present application, the bottom edge 240 and the top edge 250 of the opening 210 of the connector 200 are opposite, and the line between the top edge 250 and the bottom edge 240 is perpendicular to the width direction W1 of the opening 210. In the embodiment of the present application, the top end 111 of the locking portion 110 refers to the end of the locking portion 110 away from the limiting portion 120. In the embodiment of the present application, by setting the orthographic projection of the top end 111 of the locking portion 110 on the plane where the opening 210 is located between the bottom edge 240 and the top edge 250 of the opening 210 of the connector 200, the height of the locking portion 110 is located between the bottom edge 240 and the top edge 250 of the opening 210 of the connector 200. In the embodiment of the present application, the locking portion 110 is used to lift up such as Figure 4 andFigure 5 The positioning portion 340 of the sheet-like structure shown causes the position of at least a partial area of the positioning portion 340 to change. In the embodiment of the present application, the clamping portion 110 is used to cooperate with the positioning portion 340 of the circuit board 300 so that the positioning portion 340 is not flush with the circuit board main body 310. Specifically, the positioning portion 340 is a sheet-like structure. When the circuit board 300 is not inserted into the opening 210 of the connector 200, the positioning portion 340 and the circuit board main body 310 are in the same plane; when the circuit board 300 is exactly inserted into the opening 210 of the connector 200, the clamping portion 110 is aligned with the positioning portion 340, and the clamping portion 110 lifts the positioning portion 340, so that the positioning portion 340 and the circuit board main body 310 are not in the same plane. That is, when it is observed that the position of the positioning portion 340 changes in the direction from the bottom edge 240 to the top edge 250, it indicates that the positioning portion 340 and the clamping portion 110 are successfully matched, and the circuit board 300 is exactly inserted into the opening 210 of the connector 200, which can avoid further applying a force to the circuit board 300 in the insertion direction C1 and prevent the circuit board 300 from curling.

[0047] As Figure 5 shown, when the snap-type limiting portion 120 is buckled with the bottom of the connector 200, the clamping portion 110 protrudes from the bottom edge 240 of the opening 210 of the connector 200, that is, as Figure 5 shown, when the circuit board 300 is inserted into the opening 210 of the connector 200, the clamping portion 110 lifts the positioning portion 340, so that the positioning portion 340 tilts upward. In other embodiments, as Figure 6 and Figure 7 shown, the snap-type limiting portion 120 can also be buckled with the top surface of the connector 200, and the clamping portion 110 protrudes from the top edge 250 of the opening 210 of the connector 200, so that when the circuit board 300 is inserted into the opening 210 of the connector 200, the clamping portion 110 lifts the positioning portion 340, so that the positioning portion 340 tilts downward.

[0048] In the embodiment of the present application, as Figure 4 and Figure 5As shown, the card slot portion 110 is a columnar structure. More specifically, in the implementation of this application, the card slot portion 110 is a quadrangular columnar structure. The end face of the top end 111 of the card slot portion 110 is a plane, and the corners of the end face of the top end 111 of the card slot portion 110 near the opening 210 of the connector 200 are set as rounded corners, reducing the impact on the circuit board body 310 caused by the card slot portion 110 when the circuit board 300 is inserted into the opening 210 of the connector 200. In other embodiments, the card slot portion 110 can also be a cylindrical structure or a prismatic structure with other numbers of sides, etc. The end face of the top end 111 of the card slot portion 110 can also not be a plane. For example, it can be an arc surface or the surface of other irregular structures. In the embodiment of this application, the material of the card slot portion 110 is a silicone-like material, so that the card slot portion 110 will not scratch the circuit board 300 or the connector 200.

[0049] Specifically, in the embodiment of this application, as Figure 2 and Figure 5 shown, there is a gap 130 between the card slot portion 110 and the plane where the opening 210 of the connector 200 is located, so as to facilitate the insertion of the circuit board 300 into the opening 210 of the connector 200.

[0050] Specifically, as Figure 3 , Figure 4 and Figure 5 shown, the distance between the card slot portion 110 and the first connection electrode 230 in the connector 200 is configured such that when the second connection electrode 350 of the circuit board 300 is connected to the first connection electrode 230 after the circuit board 300 is inserted into the connector 200, the card slot portion 110 is aligned with the positioning portion 340 of the circuit board 300. In the embodiment of this application, a first connection electrode 230 is provided in the connector 200, and a second connection electrode 350 is provided on the circuit board 300. In the embodiment of this application, when the circuit board 300 is inserted into the opening 210 of the connector 200 and the first connection electrode 230 is connected to the second connection electrode 350, it indicates that the circuit board 300 and the connector 200 are successfully connected. In the embodiment of this application, after the circuit board 300 is inserted into the connector 200, when the second connection electrode 350 of the circuit board 300 is exactly connected to the first connection electrode 230 and the card slot portion 110 is aligned with the positioning portion 340 of the circuit board 300, it indicates that the circuit board 300 is exactly inserted into the connector 200, that is, it does not curl too much, and at the same time, the first connection electrode 230 and the second connection electrode 350 are completed to be connected. In the embodiment of this application, by reasonably setting the distance between the card slot portion 110 and the first connection electrode 230 of the connector 200, when the second connection electrode 350 is connected to the first connection electrode 230, the card slot portion 110 and the positioning portion 340 are exactly aligned. In a specific embodiment of this application, the distance between the card slot portion 110 and the first connection electrode 230 of the connector 200 is the same as the distance between the positioning portion 340 of the circuit board 300 and the second connection electrode 350.

[0051] In another specific embodiment of the present application, as Figures 8 - 11 shown, the top end 111 of the clamping portion 110 is flush with the bottom edge 240 of the opening 210 of the connector 200. In the embodiment of the present application, the top end 111 of the clamping portion 110 is the end of the clamping portion 110 facing away from the limiting portion 120. In the embodiment of the present application, the clamping portion 110 is used to cooperate with the positioning portion 340 of the circuit board 300 so that at least a part of the clamping portion 110 is located within the positioning portion 340; when the top end 111 of the clamping portion 110 is flush with the bottom edge 240 of the opening 210 of the connector 200, the positioning portion 340 can be sleeved on the clamping portion 110 to achieve the alignment of the clamping portion 110 and the positioning portion 340. In the embodiment of the present application, the thickness of the circuit board 300 is relatively thin and can be ignored. Therefore, when the top end 111 of the clamping portion 110 is flush with the bottom edge 240 of the opening 210 of the connector 200, the positioning portion 340 can be sleeved on the clamping portion 110. In other embodiments, the top end 111 of the clamping portion 110 can also be slightly higher than the bottom of the opening 210 of the connector 200 to facilitate the sleeving of the positioning portion 340 on the clamping portion 110 and achieve the alignment of the clamping portion 110 and the positioning portion 340. In the embodiment of the present application, the positioning portion 340 is a hole-like structure, and the hole-like structure is a through hole. In other embodiments, the positioning portion 340 can also be a blind hole, and the positioning portion 340 can also be a groove.

[0052] In the embodiment of the present application, the cross-section of the top end 111 of the clamping portion 110 is smaller than the cross-section of the bottom end (not marked in the figure) of the clamping portion 110. In the embodiment of the present application, the bottom end of the clamping portion 110 is the end of the clamping portion 110 close to the limiting portion 120; the cross-sections of the top end 111 and the bottom end refer to the planes parallel to the plane where the circuit board 300 is located when the circuit board 300 is inserted into the connector 200. By setting the cross-section of the top end 111 of the clamping portion 110 to be smaller than the cross-section of the bottom end of the clamping portion 110, the contact surface at the connection between the clamping portion 110 and the limiting portion 120 is larger, making the connection between the clamping portion 110 and the limiting portion 120 stable. At the same time, the cross-section of the top end 111 of the clamping portion 110 is smaller, and the size suitable for the positioning portion 340 is also smaller. In the embodiment of the present application, the clamping portion 110 is a conical structure, or can also be a triangular pyramid structure, etc. In the embodiment of the present application, when the clamping portion 110 is aligned with the positioning portion 340, the top end 111 of the clamping portion 110 is inserted into the positioning portion 340, so that the operator can feel that the clamping portion 110 is inserted into a hole structure or a groove structure, and there is an induction point, which can warn the operator that the circuit board 300 has been exactly inserted into the connector 200 and no further insertion is required, avoiding curling of the circuit board 300. In other embodiments, the cross-section of the top end 111 of the clamping portion 110 can also be equal to or larger than the cross-section of the bottom of the clamping portion 110, as long as the top end 111 of the clamping portion 110 can correspond to the positioning portion 340; it can also be such that the operator cannot feel the insertion of the clamping portion 110 into the positioning portion 340. At this time, the clamping portion 110 cooperates with the positioning portion 340, and the circuit board 300 cannot be further inserted into the connector 200, avoiding curling of the circuit board 300.

[0053] The present application also includes a second technical solution. As Figure 4 , Figure 5 , Figure 12 and Figure 13 shown, a circuit board 300 is used to cooperate with the above-mentioned clamping device 100. The circuit board 300 includes a circuit board main body 310. The circuit board main body 310 includes a first main body portion 320 and a second main body portion 330. The connection end 321 of the first main body portion 320 is used to be inserted into the opening 210 of the connector 200; a positioning portion 340 is provided on the second main body portion 330, and the distance D1 between the positioning portion 340 and the connection end 321 of the first main body portion 320 in the insertion direction C1 is greater than the insertion depth D2 of the connector 200; wherein, the positioning portion 340 is used to cooperate with the clamping portion 110 of the clamping device 100.

[0054] In the embodiment of the present application, the circuit board 300 is provided with a positioning portion 340 on the second main body portion 330, such that when the connection end 321 of the first main body portion 320 is inserted into the opening 210 of the connector 200, the second main body portion 330 and the positioning portion 340 are located outside the connector 200, and the positioning portion 340 can cooperate with the positioning portion 110 of the positioning device 100 to indicate that the circuit board 300 just enters the opening 210 of the connector 200, avoiding the occurrence of curling caused by the circuit board 300 being inserted into the opening 210 of the connector 200 or the situation of poor connection caused by the circuit board 300 being inserted too shallowly.

[0055] In the embodiment of the present application, the second main body portion 330 is provided with a positioning portion 340, which means that the positioning portion 340 is directly provided on the second main body portion 330, or the positioning portion 340 is provided on the extended area of the second main body portion 330, and the extension direction of the extended area is perpendicular to the insertion direction C1; or the positioning portion 340 is provided on the extended area of the second main body portion 330, but is not directly connected to the second main body portion 330.

[0056] In an embodiment of the present application, the length Q1 of the first main body portion 320 perpendicular to the insertion direction C1 is greater than the length Q2 of the second main body portion 330 perpendicular to the insertion direction C1; the positioning portion 340 is used to cooperate with the positioning portion 110 of the positioning device 100, so that when the first main body portion 320 is inserted into the opening 210 of the connector 200, the positioning portion 340 is not flush with the circuit board main body 310. As Figure 4 and Figure 12 shown, in the embodiment of the present application, the lengths of the first main body portion 320 and the second main body portion 330 perpendicular to the insertion direction C1 are different, so that a boss is formed between the first main body portion 320 and the second main body portion 330 on the plane where the circuit board main body 310 is located. More specifically, in the embodiment of the present application, two bosses are formed on both sides of the first main body portion 320 and the second main body portion 330. As shown in the figure, the first main body portion 320 and the second main body portion 330 form a "T" - shaped structure; in the embodiment of the present application, the positioning portion 340 is an extension of the second main body portion 330, so that when the first main body portion 320 is inserted into the opening 210 of the connector 200, the positioning portion 340 is not flush with the second main body portion 330, that is, the positioning portion 340 and the second main body portion 330 are not in the same plane, to show the mutual cooperation between the positioning portion 340 and the positioning portion 110 of the positioning device 100. In the embodiment of the present application, there are two positioning portions 340, located on both sides of the second main body portion 330 perpendicular to the insertion direction C1, so as to facilitate the mutual cooperation between the two positioning portions 340 and the two positioning portions 110, to indicate that the circuit board 300 is just connected to the connector 200, so that no curling occurs on both sides of the circuit board 300.

[0057] In an embodiment of the present application, a first incision 360 extending in the insertion direction C1 is provided between the second main body portion 330 and the first main body portion 320. The first incision 360 extends from one end of the second main body portion 330 away from the connection end 321 towards the connection end 321 and ends at a preset end position, which is located between the positioning portion 340 and the connection end 321.

[0058] In an embodiment of the present application, the preset end position needs to be set according to the distance between the clamping portion 110 and the first connection electrode 230 of the connector 200, so that when the connection end 321 of the circuit board 300 is inserted into the opening 210 of the connector 200 and the second connection electrode 350 of the circuit board 300 is connected to the first connection electrode 230 of the connector 200, the clamping portion 110 can lift the positioning portion 340, causing the positioning portion 340 and the circuit board main body 310 to be not in the same plane.

[0059] Specifically, in an embodiment of the present application, by providing the first incision 360 on the second main body portion 330, the first incision 360 extends to the first main body portion 320, causing the positioning portion 340 to be separated from the second main body portion 330 through the first incision 360. When the circuit board 300 is inserted into the opening 210 of the connector 200, the positioning portion 340 cooperates with the clamping portion 110 to cause the positioning portion 340 to tilt along the line between the first main body portion 320 and the positioning portion 340. In an embodiment of the present application, the preset end position is between the first main body portion 320 and the second main body portion 330. In other embodiments, the preset end position of the first incision 360 can also be other positions.

[0060] In an embodiment of the present application, a plurality of second incisions 370 are provided between the first main body portion 320 and the positioning portion 340. The plurality of second incisions 370 are arranged in sequence along the line between the first main body portion 320 and the positioning portion 340, so that when the clamping portion 110 cooperates with the positioning portion 340, the clamping portion 110 lifts the positioning portion 340, facilitating the positioning portion 340 to fold along the line between the first main body portion 320 and the positioning portion 340, causing the positioning portion 340 and the first main body portion 320 or the second main body portion 330 to be not in the same plane.

[0061] In another embodiment, as Figure 13 shown, it is also possible that a first incision 360 extending perpendicular to the insertion direction C1 is provided between the first main body portion 320 and the positioning portion 340. The first incision 360 extends from the side of the first main body portion 320 facing away from the second main body portion 330 towards the second main body portion 330 and extends to the side of the first main body portion 320 close to the second main body portion 330. In an embodiment of the present application, the first incision 360 is provided between the first main body portion 320 and the positioning portion 340, and a plurality of second incisions 370 are arranged at intervals on the second main body portion 330 and along the insertion direction C1 (see Figure 5) are arranged at intervals in sequence. The positioning portion 340 is separated from the first main body portion 320, so that when the clamping portion 110 (see Figure 5 ) cooperates with the positioning portion 340, the positioning portion 340 rotates along the straight line where the second cut 370 is located, so that the positioning portion 340 and the first main body portion 320 or the second main body portion 330 are not in the same plane, indicating the cooperation between the positioning portion 340 and the clamping portion 110.

[0062] In another embodiment, as Figure 8 、 Figure 11 and Figure 14 shown, the positioning portion 340 is a hole-like structure, so that the positioning portion 340 can cooperate with the clamping portion 110. In the embodiment of the present application, two hole-like structures are provided on the second positioning portion 340 to cooperate with the positioning portion 340 of the above-mentioned clamping device 100. In the embodiment of the present application, when the circuit board 300 is inserted into the connector 200, the top end 111 of the positioning portion 340 can be inserted into the positioning portion 340 of the hole-like structure, so that the finger can feel that the clamping portion 110 is inserted into the hole-like structure, and there is an induction point, which can warn the operator that the circuit board 300 has been exactly inserted into the connector 200 and does not need to be further inserted, avoiding curling of the circuit board 300. The hole-like structure positioning portion 340 in the embodiment of the present application can cooperate with the clamping portion 110 such as a conical structure and a triangular pyramid structure. The hole-like structure of the positioning portion 340 in the embodiment of the present application is a through hole. In other embodiments, the hole-like structure can also be a blind hole, so that when the circuit board 300 is inserted into the connector 200, the opening 210 end of the blind hole faces the clamping portion 110; or the positioning portion 340 can also be a groove structure, and the groove structure positioning portion 340 can cooperate with the clamping portion 110 that can be inserted into the groove structure.

[0063] The present application also includes a third technical solution, as Figure 4 、 Figure 5 、 Figure 8 and Figure 11 shown, a circuit board connection assembly includes a connector 200, the above-mentioned clamping device 100 and the above-mentioned circuit board 300. The connector 200 includes an opening 210. The clamping device 100 includes a clamping portion 110 and a limiting portion 120. The circuit board 300 includes a positioning portion 340; wherein, the limiting portion 120 of the clamping device 100 limits the clamping portion 110 outside the opening 210 of the connector 200; the circuit board 300 is used to be inserted into the opening 210 of the connector 200, and the positioning portion 340 cooperates with the clamping portion 110 to indicate that the circuit board 300 is located in the opening 210 of the connector 200.

[0064] In the embodiment of the present application, by providing the clamping device 100, the clamping part 110 of the clamping device 100 can be restricted outside the opening 210 of the connector 200; by providing the positioning part 340 on the circuit board 300, when the circuit board 300 is inserted into the opening 210 of the connector 200, the circuit board 300 is exactly located in the opening 210 of the connector 200, that is, the second connection electrode 350 of the circuit board 300 is exactly connected to the second connection electrode 350 of the connector 200, avoiding the curling of the circuit board 300 caused by the excessive insertion of the connection end 321 of the circuit board 300 into the opening 210 of the connector 200, which can improve the service life of the circuit board 300; it can also avoid the inaccurate alignment between the circuit board 300 and the connector 200 caused by the incomplete insertion of the connection end 321 of the circuit board 300 into the opening 210 of the connector 200, which can improve the connection yield between the circuit board 300 and the connector 200.

[0065] In a specific embodiment of the present application, as Figure 4 and Figure 5 shown, the circuit board 300 includes a circuit board main body 310, the circuit board main body 310 includes a first main part 320 and a second main part 330, the positioning part 340 is a sheet-like structure, and the positioning part 340 is an extended area of the second main part 330. The positioning part 340 and the second main part 330 form a first cut 360, and the positioning part 340 and the first main part 320 form a plurality of second cuts 370 arranged at intervals. The arrangement direction of the plurality of second cuts 370 is perpendicular to the insertion direction C1. In other embodiments, the first cut 360 can also be provided between the positioning part 340 and the first main part 320, and the plurality of second cuts 370 are provided between the positioning part 340 and the second main part 330. The connection end 321 of the first main part 320 of the circuit board main body 310 is provided with a second connection electrode 350.

[0066] The limiting part 120 of the clamping device 100 is a snap structure, the snap structure is snapped onto the bottom of the connector 200, the clamping part 110 is located outside the opening 210 of the connector 200, and there is a gap 130 between the clamping part 110 and the opening 210 of the connector 200. The top end 111 of the clamping part 110 is located between the top edge 250 and the bottom edge 240 of the opening 210 of the connector 200, and the clamping part 110 is a columnar structure. In other embodiments, the snap structure can also be snapped onto the top end 111 of the connector 200.

[0067] The first connection electrode 230 is provided in the opening 210 of the connector 200, as Figure 4 and Figure 4As shown, the circuit board 300 is inserted into the opening 210 of the connector 200 along the insertion direction C1, such that the connection end 321 of the first main body portion 320 enters the opening 210 of the connector 200. When the first connection electrode 230 and the second connection electrode 350 are exactly connected, the positioning portion 340 and the clamping portion 110 cooperate with each other, so that the clamping portion 110 jacks up the positioning portion 340, making the positioning portion 340 uneven with the circuit board main body 310, indicating that the circuit board 300 is exactly inserted into the opening 210 of the connector 200, and avoiding curling of the circuit board 300 caused by further applying a force to the circuit board 300 along the insertion direction C1.

[0068] As Figure 8 , Figure 11 and Figure 14 shown, in another specific embodiment of the present application, different from the above embodiment, the positioning portion 340 is set as a hole-like structure provided on the second main body portion 330. The top end 111 of the clamping portion 110 is flush with the bottom edge 240 of the opening 210 of the connector 200, and the cross-section of the clamping portion 110 gradually increases from the top end 111 to the bottom end. The embodiment of the present application does not limit the distance between the clamping portion 110 and the opening 210 of the connector 200, that is, there may be no gap 130 between the clamping portion 110 and the connector 200. In other embodiments, a gap 130 may also be provided between the clamping portion 110 and the connector 200. The circuit board 300 is inserted into the opening 210 of the connector 200 along the insertion direction C1, such that the connection end 321 of the first main body portion 320 enters the opening 210 of the connector 200. When the first connection electrode 230 and the second connection electrode 350 are exactly connected, the positioning portion 340 and the clamping portion 110 cooperate with each other, so that the top end 111 of the clamping portion 110 enters the hole-like positioning portion 340, making the circuit board 300 unable to move further along the insertion direction C1, or enabling the operator to sense that the clamping portion 110 enters the hole-like positioning portion 340 and stop applying a force to the circuit board 300 along the insertion direction C1, indicating that the circuit board 300 is exactly inserted into the opening 210 of the connector 200, and avoiding curling of the circuit board 300; improving the connection accuracy between the circuit board 300 and the connector 200 and the connection yield rate between the circuit board 300 and the connector 200.

[0069] The above are only the embodiments of the present application, and do not limit the patent scope of the present application accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A latching device (100) for a connector (200), characterized in that, Comprising: A clamping part (110) configured to be disposed on a side where an opening (210) of a connector (200) is located; A limiting part (120) configured to relatively limit the clamping part (110) and the connector (200), so as to limit the clamping part (110) outside the opening (210) of the connector (200); Wherein, the clamping part (110) is configured to cooperate with a positioning part (340) of a circuit board (300) such that the positioning part (340) is not flush with a circuit board main body (310), or the clamping part (110) is configured to cooperate with the positioning part (340) of the circuit board (300) such that at least a part of the clamping part (110) is located within the positioning part (340); A distance between the clamping part (110) and a first connection electrode (230) within the connector (200) is configured such that after the circuit board (300) is inserted into the connector (200), a second connection electrode (350) of the circuit board (300) is connected to the first connection electrode (230), and at the same time, the clamping part (110) is aligned with the positioning part (340) of the circuit board (300).

2. The card positioning device (100) according to claim 1, wherein The number of the clamping parts (110) is two, and the two clamping parts (110) are configured to be disposed on two sides along a width direction (W1) of the opening (210) of the connector (200), and a positive projection of the clamping part (110) on a plane where the opening (210) is located overlaps at least a part of the opening (210).

3. The card position device (100) according to claim 1, characterized in that, A positive projection of a top end (121) of the clamping part (110) on a plane where the opening (210) is located is located between a bottom edge (240) and a top edge (250) of the opening (210) of the connector (200), and the top edge (250) is opposite to the bottom edge (240); or, the top end (121) of the clamping part (110) is flush with the bottom edge (240) of the opening (210) of the connector (200).

4. The clamping device (100) according to claim 1, wherein: The clamping part (110) is a columnar structure; or A cross section of a top end (121) of the clamping part (110) is smaller than a cross section of a bottom end of the clamping part (110).

5. A circuit board (300), characterized in that, A circuit board (300) is configured to cooperate with the clamping device (100) according to any one of claims 1-4. The circuit board (300) includes a circuit board main body (310), and the circuit board main body (310) includes a first main part (320) and a second main part (330). A connection end (321) of the first main part (320) is configured to be inserted into the opening (210) of the connector (200); the second main part (330) is provided with a positioning part (340), and a distance (D1) between the positioning part (340) and the connection end (321) of the first main part (320) in an insertion direction (C1) is greater than an insertion depth (D2) of the connector (200); Wherein, the positioning portion (340) is used to cooperate with the engaging portion (110) of the engaging device (100).

6. The circuit board (300) according to claim 5, characterized in that, The length (Q1) of the first main body portion (320) perpendicular to the insertion direction (C1) is greater than the length (Q2) of the second main body portion (330) perpendicular to the insertion direction (C1); The positioning portion (340) is used to cooperate with the engaging portion (110) of the engaging device (100) so that when the first main body portion (320) is inserted into the opening (210) of the connector (200), the positioning portion (340) is not flush with the circuit board main body (310).

7. The circuit board (300) according to claim 6, wherein, A first notch (360) extending in the insertion direction (C1) is provided between the second main body portion (330) and the first main body portion (320). The first notch (360) extends from one end of the second main body portion (330) away from the connection end (321) towards the connection end (321) and terminates at a preset termination position, and the preset termination position is located between the positioning portion (340) and the connection end (321); or, A first notch (360) extending perpendicular to the insertion direction (C1) is provided between the first main body portion (320) and the positioning portion (340). The first notch (360) extends from the side of the first main body portion (320) facing away from the second main body portion (330) towards the second main body portion (330) and extends to the side of the first main body portion (320) close to the second main body portion (330).

8. The circuit board (300) according to claim 5, characterized in that, The positioning portion (340) is a hole-like structure or a groove-like structure so that the positioning portion (340) can cooperate with the engaging portion (110).

9. A circuit board (300) connection component, characterized in that, Including a connector (200), the engaging device (100) according to any one of claims 1-4, and the circuit board (300) according to any one of claims 5-8. The connector (200) includes an opening (210), the engaging device (100) includes an engaging portion (110) and a limiting portion (120), and the circuit board (300) includes a positioning portion (340); Wherein, the limiting portion (120) of the engaging device (100) limits the engaging portion (110) outside the opening (210) of the connector (200); The circuit board (300) is used to be inserted into the opening (210) of the connector (200), and the positioning portion (340) is made to cooperate with the engaging portion (110) to indicate that the circuit board (300) is located in the opening (210) of the connector (200).

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