Mini-fakra quad flat pack end connector

Abstract

This utility model discloses a mini-fakra four-in-one board-end connector, comprising: a housing mounted on the front end of the main body; upper and lower channels forming the rear end of the main body, with first and second baffle slots respectively provided at their tail ends; a boss formed on the front end of the main body, with a riveting flange on the front face of the boss; a first slot on one side of the main body; insulator assemblies installed in the upper and lower channels, with short and long baffles respectively installed in the first and second baffle slots; the bottom surface of the main body fixedly connected to a PCB, and the terminals of the insulator assemblies electrically connected to the PCB; a second slot provided in the housing, where the first and second slots are aligned and a small baffle is inserted for locking during assembly; and a groove matching the boss provided in the housing, the bottom surface of which is a partition, with riveting holes matching the riveting flange, whereby the riveting flange is riveted to the riveting holes during assembly. This provides higher reliability and crosstalk prevention.

Description

Technical Field

[0001] This utility model relates to the field of mini-fakra connector technology, and in particular to a mini-fakra four-in-one board-end connector. Background Technology

[0002] Mini-fakra connectors can be divided into board-end and wire-end connectors according to their structure. The board-end structure mainly includes: shell, body, insulator assembly, baffle and PCB.

[0003] The advantages of existing mini-fakra board-end connectors are: the shell and body adopt an upper and lower snap-fit ​​design, which is simple to assemble and suitable for axial tensile forces; the use of a thin stainless steel baffle in conjunction with cold riveting of the body ensures structural stability; and the body achieves weight reduction by using cold riveting to connect with components. The disadvantages are: the upper and lower rows of insulators and terminals use a plug-in and barbed assembly design, which has limited ability to prevent slippage; slight wobbling is prone to occur between the shell and the body; and the insulator's holding force on the terminals is not reliable enough.

[0004] Therefore, there is an urgent need for a mini-fakra four-in-one board connector that can solve one or more of the above problems. Utility Model Content

[0005] To address one or more problems existing in the prior art, this utility model provides a mini-fakra four-in-one board-end connector. The technical solution adopted by this utility model to solve the above problems is: a mini-fakra four-in-one board-end connector, the connector comprising: a main body, a housing mounted on the front end of the main body, an upper channel and a lower channel formed at the rear end of the main body, the upper channel having a first baffle slot at its tail end, the lower channel having a second baffle slot at its tail end, a boss formed on the front end of the main body, a riveting flange on the front face of the boss, and a first retaining groove on one side of the main body; Insulator assemblies are installed in the upper and lower channels. A short baffle is installed in the first baffle slot and a long baffle is installed in the second baffle slot. The short baffle and the long baffle are used to limit and isolate the insulator assembly. The bottom surface of the main body is fixedly connected to the PCB, and the terminals of the insulator assembly are electrically connected to the PCB. The outer shell is provided with a second slot. During assembly, the first slot and the second slot are aligned and a small baffle is inserted for locking. The outer shell is provided with a groove that matches the boss. The bottom surface of the groove is a partition. The partition is provided with a riveting hole that matches the riveting flange. During assembly, the riveting flange is riveted together with the riveting hole.

[0006] In some embodiments, the insulator assembly includes a first part and a second part, the connection between the first part and the second part is a corner, the first part and the second part are connected in an L-shape, and a terminal is inserted into the first part and the second part; The first part has a terminal front insertion hole, and the second part has a terminal rear slot, wherein the terminal rear slot has a limiting flange for limiting terminals; The second part has an outwardly open notch at one end near the corner, and the second part bends at the notch to expand or contract.

[0007] Furthermore, the width of the notch gradually increases from the inside to the outside.

[0008] In some embodiments, the insulator assembly is divided into a long insulator assembly and a short insulator assembly according to its length. The long insulator assembly is installed in the lower channel, and the short insulator assembly is installed in the upper channel.

[0009] In some embodiments, the elongated baffle has two prongs. The prongs have a first locking point at the end away from their free end. The first locking points of the two prongs are arranged opposite each other and engage with the second baffle slot. The prongs have a plurality of second locking points arranged sequentially from the outside to the inside at the end near their free end. The second locking points engage with the second baffle slot.

[0010] In some embodiments, the boss is provided with a plug-in cylinder for the insulator assembly to pass through, and the partition is provided with a through hole for the plug-in cylinder to pass through.

[0011] Furthermore, four perforations are provided and arranged around the riveting hole.

[0012] In some embodiments, the bottom surface of the main body is provided with a plurality of mounting posts, which are fixedly connected to the PCB.

[0013] In some embodiments, the housing is provided with an outwardly extending mating plate, and the second slot is disposed on the mating plate.

[0014] In some embodiments, the first slot is located on the side of the body facing the PCB.

[0015] The technical effect achieved by this utility model is that by using long and short baffles to limit the position of the insulator assembly, the insulator assembly is limited, rotation is prevented, and each component is isolated, thereby reducing mutual signal interference. Among them, the first and second locking points on the long baffle ensure that the long baffle does not loosen or detach, and also reduce the assembly gap. Compared with the traditional boss-type connection structure, the multiple locking point structure not only improves the reliability of the connection, but also improves the grounding shielding effect between the long baffle and the main body. The outer shell is locked to the main body by riveting the flange to the riveting hole and by engaging the small baffle with the first and second slots. This makes the connection between the outer shell and the main body more stable and reliable, and provides higher axial load tensile force. Compared with the traditional boss / step-type snap-fit ​​fixation, it reduces the assembly gap, improves the assembly accuracy, and effectively avoids the loosening of the main body and the outer shell. At the same time, the design of the small baffle facilitates quick positioning and assembly, and its position design also prevents the small baffle from coming out under the action of riveting or external force. The notch design of the insulator assembly allows the force generated when it expands or contracts to act directly on the center pin terminal. Combined with the limiting flange of the center pin terminal, the insulator assembly provides a higher holding force for the center pin terminal. Compared with other terminal barbed anti-reverse designs, it is more reliable and practical, and the terminal is more difficult to break free. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram of the main body of the present utility model; Figure 4 This is a schematic diagram of the outer shell of this utility model; Figure 5 This is a schematic diagram of the insulator assembly of this utility model; Figure 6 This is a cross-sectional view of the insulator assembly of this utility model; Figure 7 This is a front view of the present invention; Figure 8 This is a cross-sectional view of the present invention along the AA direction; Figure 9 This is a cross-sectional view of the present invention along the BB direction; Figure 10 This is a schematic diagram showing the connection between the long baffle and the second baffle slot of this utility model.

[0017] In the diagram, 1. Main body; 10. Upper channel; 100. First baffle slot; 11. Lower channel; 110. Second baffle slot; 12. Boss; 120. Insertion sleeve; 13. First slot; 14. Mounting post; 15. Riveting flange; 2. Outer shell; 20. Butt plate; 200. Second slot; 21. Groove; 22. Partition; 220. Through hole; 221. Riveting hole; 3. PCB; 4. Insulator assembly; 40. First part; 400. Terminal front insertion hole; 41. Second part; 410. Terminal rear slot; 411. Limiting flange; 42. Notch; 43. Terminal; 430. Terminal head; 431. Terminal tail; 5. Long insulator assembly; 6. Short insulator assembly; 7. Long baffle; 70. Pin; 71. First locking point; 72. Second locking point; 8. Short baffle; 9. Small baffle. Detailed Implementation

[0018] To make the above-mentioned objectives, features, and advantages of this utility model more readily understood, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0019] This utility model discloses a mini-fakra four-in-one board-end connector, combined with Figure 1-3 As shown, the connector includes: a main body 1, a housing 2 installed at the front end of the main body 1, an upper channel 10 and a lower channel 11 that are isolated from each other formed at the rear end of the main body 1, a first baffle slot 100 provided at the tail end of the upper channel 10, a second baffle slot 110 provided at the tail end of the lower channel 11, and a boss 12 formed at the front end of the main body 1. Combination Figure 3 , Figure 8 As shown, the front end face of the boss 12 is provided with a riveting flange 15, and one side of the main body 1 is provided with a first slot 13; Combination Figures 1-3 , Figure 9 As shown, insulator assemblies 4 are installed in the upper channel 10 and the lower channel 11. A short baffle 8 is installed in the first baffle slot 100, and a long baffle 7 is installed in the second baffle slot 110. The short baffle 8 and the long baffle 7 are used to limit and isolate the insulator assembly 4. The bottom surface of the main body 1 is fixedly connected to the PCB 3, and the terminals 43 of the insulator assembly 4 are electrically connected (welded) to the PCB 3. Combination Figure 4 , Figure 8As shown, the outer shell 2 is provided with a second slot 200. During assembly, the first slot 13 is aligned with the second slot 200 and a small baffle 9 is inserted for locking. In some embodiments, the outer shell 2 is provided with an outwardly extending mating plate 20, and the second slot 200 is disposed on the mating plate 20. Combination Figure 4 , Figure 8 As shown, the outer shell 2 is provided with a groove 21 that matches the boss 12. The bottom surface of the groove 21 is a partition 22. The partition 22 is provided with a riveting hole 221 that matches the riveting flange 15. During assembly, the riveting flange 15 is riveted together with the riveting hole 221.

[0020] Specifically, in combination Figure 2 , Figure 3 , Figure 8 As shown, the first slot 13 is located on the side of the main body 1 facing the PCB3. That is, after the small baffle 9 is inserted into the first and second slots, its free end faces the PCB3, which makes the small baffle 9 restricted by the PCB3, making it more difficult to detach.

[0021] It should be pointed out that, in combination Figure 2 , Figure 9 Based on their lengths, the insulator assembly 4 is divided into a long insulator assembly 5 and a short insulator assembly 6. The long insulator assembly 5 is installed in the lower channel 11, and the short insulator assembly 6 is installed in the upper channel 10. Figure 2 The bottom surface of the main body 1 is provided with a plurality of mounting posts 14, which are fixedly connected to the PCB 3. Figure 2 , Figure 3 The adjacent long insulator assemblies 5 are isolated from each other, and the adjacent short insulator assemblies 6 are isolated from each other.

[0022] Specifically, such as Figure 5 , Figure 6 As shown, the insulator assembly 4 includes a first part 40 and a second part 41. The connection between the first part 40 and the second part 41 is a corner. The first part 40 and the second part 41 are connected in an L-shape. The terminal 43 is inserted into the first part 40 and the second part 41. The first part 40 has a terminal front insertion hole 400, and the second part 41 has a terminal rear slot 410. The terminal rear slot 410 has a limiting flange 411 for a limiting terminal 43. The terminal head 430 of the terminal 43 extends out of the terminal front insertion hole 400, and the terminal tail 431 of the terminal 43 extends out of the terminal rear slot 410. The second part 41 has an outwardly open notch 42 at one end near the corner. The second part 41 bends open or contracts at the notch 42, wherein the width of the notch 42 gradually increases from the inside to the outside.

[0023] Specifically, in combination Figures 2-4 As shown, the boss 12 is provided with a plug cylinder 120 for the insulator assembly 4 to pass through, and the partition 22 is provided with a through hole 220 for the plug cylinder 120 to pass through. There are four through holes 220 arranged around the riveting hole 221, thereby providing a more reliable and stable axial load tensile force.

[0024] Specifically, in combination Figure 10 As shown, the long baffle 7 has two prongs 70. A first locking point 71 is provided at the end of each prong 70 away from its free end. The first locking points 71 of the two prongs 70 are positioned opposite each other and engage with the second baffle slot 110. A plurality of second locking points 72 are sequentially provided from the outside to the inside at the end of each prong 70 near its free end. The second locking points 72 engage with the second baffle slot 110. The first locking points 71 are mainly used to prevent the long baffle 7 from detaching. The second locking points 72, in addition to preventing detachment, also provide a better multi-point connection effect, thereby improving the grounding shielding effect between the long baffle 7 and the main body 1. Similarly, the short baffle 8 can also have two prongs, and locking points are provided on the prongs.

[0025] In summary, this application uses long and short baffles to limit the insulator assembly, thereby limiting the insulator assembly, preventing rotation, and isolating each other, thus reducing mutual signal interference. The first and second locking points on the long baffle ensure that the long baffle does not loosen or detach, and also reduce the assembly gap. Compared with the traditional boss-type connection structure, the multiple locking point structure not only improves the reliability of the connection, but also improves the grounding shielding effect between the long baffle and the main body. The outer shell is locked to the main body by riveting the flange to the riveting hole and by engaging the small baffle with the first and second slots. This makes the connection between the outer shell and the main body more stable and reliable, and provides higher axial load tensile force. Compared with the traditional boss / step-type snap-fit ​​fixation, it reduces the assembly gap, improves the assembly accuracy, and effectively avoids the loosening of the main body and the outer shell. At the same time, the design of the small baffle facilitates quick positioning and assembly, and its position design also prevents the small baffle from coming out under the action of riveting or external force. The notch design of the insulator assembly allows the force generated when it expands or contracts to act directly on the center pin terminal. Combined with the limiting flange of the center pin terminal, the insulator assembly provides a higher holding force for the center pin terminal. Compared with other terminal barbed anti-reverse designs, it is more reliable and practical, and the terminal is more difficult to break free.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The embodiments described above are merely illustrative of one or more implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A mini-fakra 4-in-1 board-end connector, characterized in that, The connector includes: a body, a housing mounted on the front end of the body, an upper channel and a lower channel that are isolated from each other formed at the rear end of the body, a first baffle slot provided at the tail end of the upper channel, a second baffle slot provided at the tail end of the lower channel, a boss formed at the front end of the body, a riveting flange provided on the front face of the boss, and a first slot provided on one side of the body. Insulator assemblies are installed in the upper and lower channels. A short baffle is installed in the first baffle slot and a long baffle is installed in the second baffle slot. The short baffle and the long baffle are used to limit and isolate the insulator assembly. The bottom surface of the main body is fixedly connected to the PCB, and the terminals of the insulator assembly are electrically connected to the PCB. The outer shell is provided with a second slot. During assembly, the first slot and the second slot are aligned and a small baffle is inserted for locking. The outer shell is provided with a groove that matches the boss. The bottom surface of the groove is a partition. The partition is provided with a riveting hole that matches the riveting flange. During assembly, the riveting flange is riveted together with the riveting hole.

2. The mini-fakra four-in-one board connector according to claim 1, characterized in that, The insulator assembly includes a first part and a second part. The connection between the first part and the second part is a corner. The first part and the second part are connected in an L-shape. Terminals are inserted into the first part and the second part. The first part has a terminal front insertion hole, and the second part has a terminal rear slot, wherein the terminal rear slot has a limiting flange for limiting terminals; The second part has an outwardly open notch at one end near the corner, and the second part bends open or contracts at the notch.

3. The mini-fakra four-in-one board connector according to claim 2, characterized in that, The width of the gap gradually increases from the inside to the outside.

4. The mini-fakra 4-in-1 board connector according to claim 1, characterized in that, According to their length, the insulator assemblies are divided into long insulator assemblies and short insulator assemblies. The long insulator assemblies are installed in the lower channel, and the short insulator assemblies are installed in the upper channel.

5. The mini-fakra four-in-one board connector according to claim 1, characterized in that, The long baffle has two prongs. The prongs have a first locking point at the end away from their free end. The first locking points of the two prongs are arranged opposite each other and engage with the second baffle slot. The prongs have a number of second locking points arranged from the outside to the inside at the end near their free end. The second locking points engage with the second baffle slot.

6. The mini-fakra 4-in-1 board connector according to claim 1, characterized in that, The boss is provided with a plug-in cylinder for the insulator assembly to pass through, and the partition is provided with a through hole for the plug-in cylinder to pass through.

7. The mini-fakra 4-in-1 board connector according to claim 6, characterized in that, The perforation is provided in four parts and arranged around the rivet hole.

8. The mini-fakra 4-in-1 board connector according to claim 1, characterized in that, The bottom surface of the main body is provided with a number of mounting posts, which are fixedly connected to the PCB.

9. The mini-fakra four-in-one board connector according to claim 1, characterized in that, The outer casing is provided with an outwardly extending mating plate, and the second slot is provided on the mating plate.

10. The mini-fakra four-in-one board connector according to claim 1, characterized in that, The first card slot is located on the side of the main body facing the PCB.

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