A circuit board connector

Abstract

The utility model discloses a kind of circuit board connectors, including first circuit board and second circuit board, the first circuit board is connected with pressure head structure;The pressure head structure includes the needle mould body being connected with the first circuit board and the needle mould sleeve being set on the needle mould body;Slot is provided on the needle mould sleeve, and the needle mould body is located in the slot after passing through the needle mould sleeve;The second circuit board is fixedly connected with plug-in block;The plug-in block is inserted into the slot, and the electrical connection of first, second circuit board is completed, and the utility model provides a kind of circuit board connector, can efficiently, accurately, stably realize the electrical connection of connector, improve the efficiency of test.

Description

Technical Field

[0001] This utility model relates to the field of crimp connector technology, and in particular to a circuit board connector. Background Technology

[0002] With the rapid development of intelligent vehicle technology, in-vehicle panel display systems play a core role in the vehicle's electronic architecture, encompassing functions such as information interaction, status monitoring, and human-machine interface control. However, the reliability and stability of in-vehicle panel display systems are highly dependent on the electrical performance and mechanical compatibility of connectors. Currently, the widely used lighting test methods in the industry still primarily rely on manual connector insertion, especially for single-head or multi-head connector testing, where significant technical bottlenecks exist.

[0003] 1. High dependence on manual operation: Traditional testing requires manually plugging in each connector and applying test voltage, which is cumbersome, time-consuming and labor-intensive, and the test results are easily unstable due to human error.

[0004] 2. Insufficient automation adaptability: Existing automated testing equipment is mostly designed for standardized interfaces, which makes it difficult to adapt to the characteristics of the wide variety and complex structure of automotive connectors (such as multi-channel and irregular interfaces), resulting in low automation coverage.

[0005] 3. A significant conflict exists between testing efficiency and cost: Manual insertion requires additional manpower, and in high-frequency testing scenarios (such as insertion / removal cycle testing in mass production), testing efficiency is limited, indirectly increasing production costs.

[0006] 4. Connection stability risk: During manual insertion, the alignment accuracy between the probe and the connector pad area is limited, which can easily lead to misjudgment due to poor contact, affecting the accuracy of the lamp test and the yield of subsequent products.

[0007] Therefore, it is necessary to design a press-fit connector that is easy to operate and has a good connection effect, in order to solve the various defects caused by manual insertion of connectors in the existing technology. Utility Model Content

[0008] This invention provides a circuit board connector that can efficiently, accurately, and stably achieve electrical connection of the connector, thereby improving testing efficiency.

[0009] One technical solution adopted by this utility model is: a circuit board connector, including a first circuit board and a second circuit board, wherein the first circuit board is connected to a pressure head structure; the pressure head structure includes a needle mold body connected to the first circuit board and a needle mold sleeve sleeved on the needle mold body; the needle mold sleeve is provided with a slot, and the needle mold body passes through the needle mold sleeve and is fixed in the slot; a plug is fixedly connected to the second circuit board; the plug is inserted into the slot to complete the electrical connection between the first and second circuit boards.

[0010] The needle mold sleeve is provided with an insertion hole for the needle mold body to pass through.

[0011] The needle mold sleeve is provided with a plurality of connecting seats, each of which is provided with a slot and a socket; the second circuit board is provided with a plurality of connecting parts, each of which is electrically connected to a plug; the connecting parts on the second circuit board are spaced apart from each other.

[0012] The connecting part provided on the second circuit board is located at the end of the second circuit board.

[0013] The pressure head structure is provided with a first buffer device, which includes an adapter plate and a floating plate. The first circuit board is placed on the adapter plate. The adapter plate is provided with a first spring groove, and the first spring body is placed in the first spring groove. It also includes a guide sleeve, which is fixed to the adapter plate. The floating plate is provided with round holes at its four corners. The floating plate is movably inserted through the guide sleeve and presses against the first spring body. The floating plate is provided with a long groove for the needle die body to pass through. The needle die sleeve is positioned above the floating plate.

[0014] The adapter board is provided with a mounting slot, one end of the first circuit board is placed in the mounting slot and connected to the needle mold body.

[0015] One end of the first circuit board is provided with a contact, and the needle mold body is electrically connected to the contact.

[0016] A second buffer device is also provided between the needle die sleeve and the floating plate. The second buffer device includes a second spring groove provided on the floating plate, and a second spring body placed in the second spring groove. The needle die sleeve presses on the second spring body. A limiting cavity is opened in the limiting plate, and the needle die sleeve is movably connected to the limiting cavity. The limiting plate is fixed on the floating plate.

[0017] The needle mold sleeve is provided with a fixing plate, and the connecting seats are arranged equidistantly on the fixing plate; the fixing plate is disposed in the limiting cavity and moves up and down along the limiting cavity; the connecting seats extend out of the opening on the limiting plate.

[0018] The opening on the limiting plate is C-shaped; the connecting seats on the fixing plate are arranged in a row, and the connecting seats at both ends are abutted against the side walls at both ends of the C-shaped opening.

[0019] The beneficial effects of the testing equipment for panels and flexible sheets of this utility model are as follows: 1. The connector of this utility model cooperates with the pressure head structure and the plug block to connect to two circuit boards to be electrically connected respectively. The two circuit boards to be connected can be quickly electrically connected by plugging. With the help of the external pressing mechanism, the pressure head structure and the plug block can be automatically pressed together, thereby avoiding the problems of low efficiency and low yield caused by manual pressing.

[0020] 2. This utility model has a two-stage buffer device on the pressure head structure, which can buffer during pressing to avoid the problem that the insertion block and the slot on the needle mold sleeve cannot be completely matched in height due to manufacturing errors during the manufacturing process, thus protecting the insertion block and the pressure head structure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the pressure head in the device of this utility model.

[0022] Figure 2 This is an exploded schematic diagram of the pressure head structure in the device of this utility model.

[0023] Figure 3 This is a schematic diagram of the insert block structure in the device of this utility model.

[0024] Figure 4 for Figure 1 A schematic diagram of the overall structure of the limiting plate in the pressure head structure.

[0025] In the figure: 1. Adapter plate; 11. Mounting groove; 12. First spring groove; 2. Pressure head structure; 21. Limiting plate; 211. Limiting cavity; 212. Opening; 22. Needle mold sleeve; 221. Mounting base; 222. Insertion hole; 223. Slot; 23. Second spring; 24. Floating plate; 241. Second spring groove; 242. Long groove; 243. Round hole; 25. Guide bushing; 26. Needle mold body; 27. First spring; 3. First circuit board; 4. Second circuit board; 41. Connecting part; 42. Insert block. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the drawings. The embodiments of this utility model shown in and described with reference to the drawings are merely exemplary, and this utility model is not limited to these embodiments.

[0027] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0028] Example 1

[0029] Embodiment 1 provides a circuit board connector, such as Figures 1 to 3 As shown, the system includes a first circuit board 3 and a second circuit board 4, which are two circuit boards electrically connected to each other. The first circuit board 3 and the second circuit board 4 are PCB boards, FPC flexible circuit boards, or other circuit boards. The first circuit board 3 is connected to the pressure head structure 2, wherein the pressure head connector includes a needle mold body 26 connected to the first circuit board 3 and a needle mold sleeve 22 sleeved on the needle mold body 26. A slot 223 is provided on the needle mold sleeve 22, and the needle mold body 26 passes through the needle mold sleeve 22 and is fixed in the slot 223. A plug block 42 is fixedly connected to the second circuit board 4, and the plug block 42 is electrically connected to the second circuit board 4, such as... Figure 2 as well as Figure 3 As shown, the slot 223 on the needle mold sleeve 22 is a square slot with notches at both ends. The notches on the sides facilitate the removal of the insert 42, and the interface shape of each insert 42 is also square. Of course, the shapes of the slot 223 and the insert 42 can also be designed into other shapes as needed. When the insert 42 is inserted into the slot 223, the needle mold body 26 inside the slot 223 contacts the insert 42, thus realizing the electrical connection between the first circuit board 3 and the second circuit board 4.

[0030] The interface between the insert block 42 and the slot 223 on the needle mold sleeve 22 designed in this utility model can quickly realize the insertion to complete the electrical connection between the first circuit board 3 and the second circuit board 4, which facilitates the external automated pressing mechanism to realize the automated insertion operation, thereby improving the insertion efficiency and connection stability, and improving the accuracy of testing.

[0031] The needle mold sleeve 22 is provided with an insertion hole 222 for the needle mold body 26 to pass through, and the needle mold body 26 is fixed in the slot 223 of the needle mold sleeve 22 after passing through the insertion hole 222.

[0032] To facilitate the connection of multiple connectors during testing, several connectors are arranged side by side on the needle mold sleeve 22. Each connector has a slot 223 and a socket 222. Multiple connectors 41 are provided on the second circuit board 4. Each connector 41 is electrically connected to a plug 42. The connectors 41 on the second circuit board 4 are spaced apart from each other. Therefore, the multiple plugs 42 on the connectors 41 can be connected to the multiple connectors on the needle mold sleeve 22, which can realize multi-head connection and meet the needs of different testing scenarios.

[0033] like Figure 3 As shown, the connecting part 41 provided on the second circuit board 4 is located at the end of the second circuit board 4. The second circuit board 4 has multiple connecting parts at the end. Specifically, the end of the second circuit board 4 can be divided into multiple rectangular structures of equal shape or other structures of the same shape to form multiple connecting parts 41. Then, a plug block 42 structure is provided on each connecting part 41.

[0034] When inserting the plug 42 into the slot 223, if multiple plugs 42 or slots 223 are inserted simultaneously, the plug 42 and slot 223 may not be perfectly matched in height. Therefore, a corresponding pressing buffer device is needed to avoid damage to the structure of the plug 42 or slot 223 during pressing. Specifically: a first buffer device is provided in the pressure head structure 2, which includes an adapter plate 1 and a floating plate 24; a first circuit board 3 is placed on the adapter plate 1, which has a mounting groove 11. One end of the first circuit board 3 is placed in the mounting groove 11 and connected to the needle mold body 26. One end of the first circuit board 3 has a contact point, and the needle mold body 26 is electrically connected to the contact point. The adapter plate 1 is provided with a first spring groove 12, and the body of the first spring 27 is placed in the first spring groove 12; it also includes a guide bushing 25, which is fixed on the adapter plate 1; the four corners of the floating plate 24 are provided with round holes 243, the floating plate 24 is movably inserted through the guide bushing 25 and pressed on the body of the first spring 27; the floating plate 24 is provided with a long groove 242 for the needle mold body 26 to pass through; the needle mold sleeve 22 is disposed above the floating plate 24. When the external pressing mechanism presses the insert 42 and the needle mold sleeve 22, based on the buffer of the first buffer device, during pressing, when the insert 42 and the slot 223 are fully engaged, but the pressing mechanism has not reached the bottom of the stroke, or when some inserts 42 have been fully inserted into the slot 223 but some inserts 42 are still not fully inserted into the slot 223, the pressing mechanism continues to press down, and the first buffer device provides buffering. The downward movement of the floating plate 24 compensates for the downward stroke, so as to avoid damage to the already inserted inserts 42 and slots 223.

[0035] Meanwhile, a second buffer device is also provided between the needle die sleeve 22 and the floating plate 24. The second buffer device includes a second spring groove 241 provided on the floating plate 24, and the body of the second spring 23 is placed in the second spring groove 241; the needle die sleeve 22 is pressed on the body of the second spring 23; a limiting cavity 211 is opened in the limiting plate 21, and the needle die sleeve 22 is movably connected in the limiting cavity 211, and the limiting plate 21 is fixed on the floating plate 24. Specifically, the movable connection between the needle die sleeve 22 and the limiting plate 21 is as follows: a fixing plate (not shown in the figure, see [reference]) is provided on the needle die sleeve 22. Figure 2 The long plate at the lower part of the needle mold sleeve 22 is the fixing plate. Connecting seats are arranged equidistantly on the fixing plate, forming a long row with equal intervals between them. The fixing plate is located within the limiting cavity 211 and moves up and down along the limiting cavity 211. (See [reference]). Figure 4 The shape of the limiting cavity 211 is similar to that of the fixing plate, and the connecting seat extends out of the opening 212 on the limiting plate 21. The opening 212 on the limiting plate 21 is a C-shaped opening. After the connecting seats on the fixing plate are arranged in a row, the connecting seats at both ends are close to the side walls on both sides of the C-shaped opening 212. At this time, the connecting seat part can extend out of the limiting plate 21 from the C-shaped opening 212 and connect with the external insert block 42.

[0036] In this embodiment, the principle of the second buffer device is that the second buffer spring in the second buffer device can provide stroke compensation for the needle mold sleeve 22. After the insert 42 is inserted into the slot 223 on the needle mold sleeve 22, when the insert 42 and the slot 223 are fully engaged, but the pressing mechanism has not reached the bottom, or when some insert 42 has been fully inserted into the slot 223 but some insert 42 is still not fully inserted into the slot 223, the pressing mechanism continues to press down, and the second buffer device provides buffering. The downward movement of the needle mold sleeve 22 compensates for the downward stroke, thus avoiding damage to the already inserted insert 42 and slot 223.

[0037] Since the needle mold sleeve 22 directly contacts the insert block 42, the second buffer device provides the first level of buffering. When the buffering provided by the second buffer mechanism cannot meet the buffering needs, the first buffer device provides the second level of buffering. By further lowering the floating plate 24, the pressing stroke compensation of the external pressing mechanism is realized, further protecting the safety of the insert block 42 and the slot 223 structure on the needle mold sleeve 22.

[0038] In the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] Furthermore, it should be noted that in this specification, "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A circuit board connector, comprising a first circuit board (3) and a second circuit board (4), characterized in that, The first circuit board (3) is connected to the pressure head structure (2); The pressure head structure (2) includes a needle mold body (26) connected to the first circuit board (3) and a needle mold sleeve (22) sleeved on the needle mold body (26); The needle mold sleeve (22) is provided with a slot (223), and the needle mold body (26) passes through the needle mold sleeve (22) and is fixed in the slot (223); A plug (42) is fixedly connected to the second circuit board (4); The insert (42) is inserted into the slot (223) to complete the electrical connection between the first and second circuit boards (4).

2. A circuit board connector according to claim 1, characterized in that, The needle mold sleeve (22) is provided with an insertion hole (222) for the needle mold body (26) to pass through.

3. A circuit board connector according to claim 2, characterized in that, The needle mold sleeve (22) is provided with a plurality of connecting seats, and each connecting seat is provided with a slot (223) and a socket (222); The second circuit board (4) is provided with a plurality of connecting parts (41), and each of the connecting parts (41) is electrically connected to a plug (42); The connecting portions (41) on the second circuit board (4) are spaced apart from each other.

4. A circuit board connector according to claim 3, characterized in that, The connecting part (41) provided on the second circuit board (4) is provided at the end of the second circuit board (4).

5. A circuit board connector according to claim 1, characterized in that, The pressure head structure (2) is provided with a first buffer device, which includes a transition plate (1) and a floating plate (24); The first circuit board (3) is placed on the adapter plate (1); The adapter plate (1) is provided with a first spring groove (12), and the body of the first spring (27) is placed in the first spring groove (12); It also includes a guide bushing (25), which is fixed to the adapter plate (1); The floating plate (24) has round holes (243) at its four corners. The floating plate (24) is movably mounted on the guide bushing (25) and presses against the body of the first spring (27). The floating plate (24) is provided with a long groove (242) for the needle mold body (26) to pass through; The needle mold sleeve (22) is positioned above the floating plate (24).

6. A circuit board connector according to claim 5, characterized in that, The adapter plate (1) is provided with a mounting groove (11), one end of the first circuit board (3) is placed in the mounting groove (11) and connected to the needle mold body (26).

7. A circuit board connector according to claim 6, characterized in that, One end of the first circuit board (3) is provided with a contact, and the needle mold body (26) is electrically connected to the contact.

8. A circuit board connector according to claim 5, characterized in that, A second buffer device is also provided between the needle mold sleeve (22) and the floating plate (24). The second buffer device includes a second spring groove (241) provided on the floating plate (24), and the body of the second spring (23) is placed in the second spring groove (241). The needle die sleeve (22) presses against the body of the second spring (23); A limiting cavity (211) is provided in the limiting plate (21), and the needle mold sleeve (22) is movably connected in the limiting cavity (211); The limiting plate (21) is fixed on the floating plate (24).

9. A circuit board connector according to any one of claims 3 or 8, characterized in that, A fixing plate is provided on the needle mold sleeve (22), and the connecting seats are arranged at equal intervals on the fixing plate; The fixing plate is disposed in the limiting cavity (211) and moves up and down along the limiting cavity (211); The connecting seat extends out of the opening (212) on the limiting plate (21).

10. A circuit board connector according to claim 9, characterized in that, The opening (212) on the limiting plate (21) is a C-shaped opening (212); The connecting seats on the fixed plate are arranged in a row, and the connecting seats at both ends are attached to the side walls at both ends of the C-shaped opening (212).

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