An underboard socket connector

Abstract

The utility model provides a board under the card seat connector relates to the technical field of connector, including support plate, support plate is used for installing on the circuit board still includes first plug stick, first plug stick is equipped with a plurality of, a plurality of first plug stick is used for inserting the socket to realize electric connection, and with control panel electric connection realizes electric signal transmission action, stud, the stud is screwed on the support plate, and the one side of stud is equipped with screw groove, is used for with the screw rod of slot screw joint, uses, according to the need rotation stud realizes the replacement action of stud. Through above-mentioned technical scheme, its purpose is in connector plug and socket complete electric connection through signal needle, when locking, socket screw rod is rotated into the independent stud of replaceable in plug side, and the stud is as independent wearing part, is installed on the support plate through screw thread, when its internal thread slips silk damage, can directly be unscrewed from outside and replace new stud, need not to disassemble whole connector, realized quick repair.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to an under-board card slot connector. Background Technology

[0002] Connectors include DSB connectors, a classic rectangular interface named for its unique D-shaped metal shield design, which are widely used in computers, communications, and industrial equipment.

[0003] The metal casing prevents mis-insertion and provides electromagnetic shielding, ensuring stable signal transmission. Models such as DB9 and DB25 correspond to different numbers of pins and support multiple functions such as VGA video, serial communication (RS-232), and parallel data transmission.

[0004] Traditional connectors use screws on both sides of the socket to screw into the threaded grooves of the plug body, commonly known as "ears," to achieve a robust connection and shielding.

[0005] However, this design has long faced a significant pain point: during repeated insertion, removal and tightening, the internal thread groove on the plug, which is usually a prefabricated toothed sleeve embedded in a stamped thin metal sheet or injection molded part, is very prone to thread stripping due to its material strength, size or wear and aging. Once the threads are stripped, the socket screw cannot engage effectively, losing its locking function. More critically, if the screw gets stuck due to stripping during unscrewing, it will directly cause the plug and socket to mechanically lock together, making them impossible to separate. During emergency maintenance or equipment debugging, the inability to unplug the plug will severely affect operational efficiency, and may even require forcibly damaging the connector or stopping the machine for repairs, resulting in additional maintenance costs and time delays. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: an under-board connector, including a support plate for mounting on a circuit board, and multiple first plugs for connecting to sockets for electrical connection and to a control board for transmitting electrical signals; and a stud screwed onto the support plate, with a threaded groove on one side for connecting to a screw in a slot. In use, the stud can be rotated to replace it as needed.

[0008] In at least some embodiments, the support plate is L-shaped, and a mounting base is inserted into the upper part of the support plate, with a plurality of the first insert rods fixedly connected to the front of the mounting bases.

[0009] In at least some embodiments, a second insertion rod is fixedly connected to the lower part of the mounting base, and multiple second insertion rods are provided. A limiting plate is fixedly connected to the front part of the mounting base, and the limiting plate is attached to the upper part of the support plate. A guide frame plate is also fixedly connected to the front part of the limiting plate for guiding the insertion of the socket.

[0010] In at least some embodiments, a plurality of second plugs are used to plug into and solder onto the control board, and the plurality of second plugs are correspondingly arranged and electrically connected to the first plug.

[0011] In at least some embodiments, the stud is threaded through the support plate to a washer, a washer is clamped between the washer and the support plate, and the stud passes through a through hole in the washer.

[0012] In at least some embodiments, the lower part of the pad is separately formed with strips, and the outer side of the strips is formed with protrusions. The protrusions of the strips retract and reset after passing through the slot of the support plate, thereby realizing the limiting installation action of the pad. The lower part of the support plate is also provided with a guide groove. The support plate is slidably installed on the circuit board through the guide groove, and the protrusion of the circuit board passes between the two strips of the pad to perform a limiting action.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, the easily damaged threaded structure is modularized and made replaceable. The stud is screwed onto a sturdy base on the side wall of the support plate, and its outer end is specially machined with a standard threaded groove for engaging and locking with the screw on the socket. The internal thread groove, which was directly machined on the fragile plug housing in the traditional design, is transferred to the stud component. When the stud becomes stripped and worn due to long-term use or excessive tightening, it is not necessary to scrap the entire connector or perform complex repairs. The damaged stud can simply be unscrewed from the outside of the support plate with a tool and replaced with a brand new component of the same specification to restore it to its original condition. This greatly improves the maintainability, service life and economy of the product, and fundamentally solves the pain point of screw jamming causing the whole machine to fail. Attached Figure Description

[0014] Figure 1 This utility model provides a three-dimensional structural schematic diagram of an under-board card slot connector; Figure 2 This utility model provides a three-dimensional structural diagram of an under-board card slot connector from another angle; Figure 3 This utility model provides a three-dimensional structural diagram of a slot in an under-board card slot connector; Figure 4 This utility model provides a three-dimensional structural diagram of the cross-section of the support plate in an under-plate card slot connector.

[0015] Legend: 1. Support plate; 2. Mounting base; 3. First insert rod; 4. Second insert rod; 5. Stud; 6. Threaded groove; 7. Pad; 8. Strip plate; 9. Protrusion; 10. Guide groove; 11. Guide frame plate; 12. Limiting plate; 13. Slot. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Example, according to Figures 1-4 As shown in the figure, the under-board connector provided by this utility model includes a support plate 1, which is used to be mounted on a circuit board. It also includes a first plug 3, which is provided in multiple ways. The multiple first plugs 3 are used to plug into the socket to realize electrical connection and to connect with the control board to realize electrical signal transmission. The stud 5 is screwed onto the support plate 1, and a screw groove 6 is opened on one side of the stud 5 for screwing into the screw of the slot 13. In use, the stud 5 can be rotated as needed to realize the replacement action of the stud 5.

[0019] An under-board connector modularizes and makes replaceable the fragile threaded structure; The stud 5 is screwed onto a sturdy base on the side wall of the support plate 1 by means of threads. Its outer end is specially machined with a standard threaded groove 6 for engaging and locking with the screw of the socket. The internal thread groove, which was machined directly onto the fragile plug housing in the traditional design, is transferred to the stud 5 component. When the stud 5 becomes stripped and worn due to long-term use or excessive tightening, there is no need to scrap the entire connector or perform complex repairs. The damaged stud 5 can be unscrewed from the outside of the support plate 1 with a tool and replaced with a brand new component of the same specification to restore it to its original condition. This greatly improves the maintainability, service life and economy of the product, and fundamentally solves the pain point of screw jamming causing the whole machine to fail.

[0020] In this embodiment, the support plate 1 is L-shaped. A mounting base 2 is inserted and installed on the upper part of the support plate 1. Several first insertion rods 3 are fixedly connected to the front of multiple mounting bases 2. Second insertion rods 4 are also fixedly connected to the lower part of the mounting base 2. There are multiple second insertion rods 4. A limiting plate 12 is fixedly connected to the front of the mounting base 2. The limiting plate 12 fits against the upper part of the support plate 1. A guide frame plate 11 is also fixedly connected to the front of the limiting plate 12 for guiding the insertion of the socket. Multiple second insertion rods 4 are used to insert into the control board and weld it to the control board. Multiple second insertion rods 4 are correspondingly arranged with the first insertion rods 3 and electrically connected. A stud 5 passes through the support plate 1 and is screwed to a washer 7. A washer 7 is clamped between the washer 7 and the support plate 1. The stud 5 passes through the through hole of the washer 7.

[0021] The L-shaped support plate 1 structure forms the skeleton and main load-bearing component of the entire connection. The electrical connection is undertaken by the pluggable mounting base 2 module: the front of the mounting base 2 is fixed with multiple first plugs 3 - male signal pins, for inserting forward into the standard D-SUB socket; the rear is fixed with multiple second plugs 4, which extend vertically downward and are designed to be directly inserted into and soldered to the control board below. The first and second insertion rods 4 are electrically connected inside the mounting base 2 via a circuit, thereby establishing a continuous electrical signal transmission channel between the socket and the control board.

[0022] The mechanical fixing and guiding mechanism is divided into multiple layers: First, the mounting base 2 is in contact with the upper horizontal surface of the L-shaped support plate 1 through the limiting plate 12 on it, thus achieving its precise positioning and support. The guide frame plate 11 at the front end of the limiting plate 12 further ensures that the external socket can be inserted smoothly at the correct angle and aligned with the first plug rod 3. The key locking function is achieved by an independent stud 5 system: a stud 5 passes through the vertical wall of the L-shaped support plate 1, the through hole of a washer, and finally screws into a front washer 7. When the stud 5 is tightened, the washer 7 and the washer located in front of and behind the support plate 1 will clamp the vertical wall of the support plate 1 like a clamp, thereby firmly fixing the module to the equipment panel or designated structure. This design separates the electrical interface module, the circuit board soldering module and the mechanical locking module, allowing independent replacement and maintenance, which greatly improves the reliability, assembly efficiency and maintainability of the product.

[0023] In this embodiment, the lower part of the pad 7 is separately formed with strips 8, and the outer side of the strips 8 is formed with protrusions 9. The protrusions 9 of the strips 8 pass through the slots 13 of the support plate 1 and retract to reset, thereby realizing the limiting installation action of the pad 7. The lower part of the support plate 1 is also provided with a guide groove 10. The support plate 1 is slidably installed on the circuit board through the guide groove 10, and the protrusions 9 of the circuit board pass between the two strips 8 of the pad 7 to perform the limiting action.

[0024] First, during installation, press down on the pad 7 so that the protrusions 9 on the two elastic strips 8 at its bottom pass through the pre-set slots 13 of the support plate 1; After the protrusion 9 passes through, the strip 8 rebounds and resets itself due to the elasticity of its own material, so that the protrusion 9 is stuck on the back of the support plate 1, thereby locking the pad 7 to the upper limit on the support plate 1. Subsequently, the entire assembly – support plate 1 and pad 7 – is slidably inserted into the circuit board along the corresponding track through the guide groove 10 at the bottom of support plate 1. At this time, a protrusion 9 structure on the circuit board is precisely embedded in the gap between the two strips 8 of pad 7, realizing secondary positioning in the front and rear directions, and finally ensuring that the entire connector module is stably installed on the circuit board and in a precise position.

[0025] The working principle of this utility model is as follows: by modularizing and making the easily damaged threaded structure replaceable; the stud 5 is screwed onto the solid base on the side wall of the support plate 1 by the thread, and its outer end is specially machined with a standard threaded groove 6 for engaging and locking with the screw of the socket; the internal thread groove that was directly machined on the fragile plug shell in the traditional design is transferred to the stud 5 component. When the stud 5 is stripped and worn due to long-term use or excessive tightening, it is not necessary to scrap the entire connector or carry out complicated repairs. The damaged stud 5 can be unscrewed from the outside of the support plate 1 with a tool and replaced with a brand new component of the same specification to restore it to its original condition.

[0026] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. An under-board connector, comprising a support plate (1) for mounting on a circuit board, characterized in that, Also includes: The first plug (3) is provided in multiple ways. The multiple first plugs (3) are used to plug into the socket to realize electrical connection and to connect with the control board to realize electrical signal transmission action. The stud (5) is screwed onto the support plate (1), and a screw groove (6) is provided on one side of the stud (5) for screwing into the screw of the slot (13). When in use, the stud (5) can be rotated as needed to replace the stud (5).

2. The under-board connector according to claim 1, characterized in that: The support plate (1) is L-shaped, and a mounting base (2) is inserted into the upper part of the support plate (1). Several first insertion rods (3) are fixedly connected to the front of multiple mounting bases (2).

3. The underboard connector according to claim 2, characterized in that: The mounting base (2) is also fixedly connected to a second insert rod (4), which has multiple second insert rods (4). The mounting base (2) is fixedly connected to a limiting plate (12) at the front. The limiting plate (12) is attached to the upper part of the support plate (1). The limiting plate (12) is also fixedly connected to a guide frame plate (11) at the front, which is used to guide the insertion of the socket.

4. The underboard connector according to claim 3, characterized in that: Multiple second plugs (4) are used to plug into the control board and solder onto the control board. Multiple second plugs (4) are correspondingly arranged and electrically connected to the first plug (3).

5. The underboard connector according to claim 3, characterized in that: The stud (5) passes through the support plate (1) and is screwed to a washer (7). The washer (7) is clamped between the washer (7) and the support plate (1). The stud (5) passes through the through hole of the washer (7).

6. The underboard connector according to claim 5, characterized in that: The lower part of the pad (7) is formed with strips (8), and the outer side of the strips (8) is formed with protrusions (9). The position of the protrusions (9) of the strips (8) retracts and resets after passing through the slot (13) of the support plate (1), thereby realizing the limiting installation action of the pad (7). The lower part of the support plate (1) is also provided with a guide groove (10). The support plate (1) is slidably installed on the circuit board through the guide groove (10), and the protrusions (9) of the circuit board pass through the two strips (8) of the pad (7) to perform the limiting action.

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