18 PIN connector slot structure with high pin strength

By using an upwardly tilted assembly channel and a flexible silicone buffer structure, combined with toothed locking and interference fit, the problems of easy pin damage and insufficient tightness are solved, improving the stability and impact resistance of the connector and extending its service life.

CN224249018UActive Publication Date: 2026-05-15DONGGUAN YANXUN ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN YANXUN ELECTRONIC TECH CO LTD
Filing Date
2025-06-13
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In the existing 18PIN connector slot design, the pins are easily damaged, the fastening is insufficient, and there is a lack of buffer protection structure, resulting in poor performance, especially under frequent insertion and removal or mechanical stress scenarios.

Method used

The assembly channel with an upward tilt design and a flexible silicone buffer structure, combined with the double fixation of toothed snap-fit ​​and interference fit, enhances the buffering and support of the pins. The elastic adhesive part formed by soft silicone provides buffering and support, preventing pin damage and loosening.

Benefits of technology

It significantly reduces the probability of pin damage, improves connection stability and shock resistance, and extends service life, especially performing well in outdoor equipment and automotive electronic systems.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a 18PIN connector slot structure with high pin strength, characterized in that the front side of a first housing is provided with a jack, the bottom of the jack is provided with a tooth groove structure, the tooth groove structure comprises a plurality of tooth grooves, a second housing is provided with a plurality of assembling hole channels, each assembling hole channel is respectively aligned with each tooth groove in the front-back direction, and the assembling hole channels are respectively aligned with the tooth grooves in the front-back direction. Each assembly hole channel comprises a funnel part and a fastening part which are connected front and back, the funnel part is obliquely arranged upwards, a PIN is inserted into each assembly hole channel, each PIN comprises a first part and a second part, the first part is arranged in an arch bridge shape, the second part is arranged in a straight line, and the second part is inserted into the fastening part of the assembly hole channel; one side of the second part is inserted into the funnel part of the assembling hole channel, the other side of the second part is movably clamped and embedded into the corresponding tooth groove, the middle lower part of the funnel part is solidified by soft silica gel to form a first adhesive part, and the first adhesive part is elastically arranged. Compared with the prior art, the probability of damage to the pins caused by misoperation or repeated plugging is remarkably reduced.
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Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a 18PIN connector slot structure with high pin strength. Background Technology

[0002] As electronic devices become increasingly miniaturized and denser, connectors, as key components for circuit connections and signal transmission, directly impact the overall performance of these devices due to their structural reliability and lifespan. Among these, 18-pin connectors, with their multi-pin and high integration characteristics, are widely used in communication equipment, industrial control instruments, and consumer electronics. Especially in scenarios requiring frequent insertion and removal or subjecting to certain mechanical stresses (such as outdoor equipment and automotive electronic systems), higher demands are placed on the pin strength and insertion reliability of the connector slot.

[0003] The 18-pin connector slot structure commonly used in existing technologies still suffers from problems such as easy damage to the pins during insertion, insufficient pin tightness, and lack of buffer protection structure. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an 18PIN connector slot structure with high pin strength to solve the above problems.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-strength 18PIN connector slot structure, comprising a first housing and a second housing, the first housing being located on the front side of the second housing and the two being fastened together. The front side of the first housing is provided with a socket, the bottom of which is formed with a toothed structure, the toothed structure including multiple toothed grooves. The second housing is provided with multiple assembly channels, each assembly channel being aligned with each toothed groove front and back. Each assembly channel includes a funnel portion and a fastening portion connected front and back. The funnel portion is inclined upwards. A PIN is inserted into the interior of each assembly channel. The PIN includes a first part and a second part. The first part is arched, and the second part is straight. The second part is inserted into the fastening portion of the assembly channel. One side of the second part is inserted into the funnel portion of the assembly channel, and the other side is movably engaged in the corresponding toothed groove. The lower middle part of the funnel portion is formed by curing soft silicone to form a first adhesive portion, which is elastically set.

[0006] In a further technical solution, the inside of the tooth groove is formed by curing soft silicone to form a second adhesive part. The second adhesive part is elastically set and is located below the first part of the PIN. The two are in contact and fit together to form a PIN buffer structure.

[0007] In a further technical solution, the depth of the groove is less than the arch height of the first part of the PIN, and the depth of the groove is 1mm-2mm.

[0008] In a further technical solution, the front end of the first part of the PIN is bent to form a stop, the stop extends horizontally, and the stop contacts and engages with the bottom surface of the tooth groove.

[0009] In a further technical solution, the PIN pin includes a PIN body made of copper material, with a width of not less than 0.3 mm and a thickness of not less than 0.15 mm.

[0010] In a further technical solution, a connector is formed on the rear side of the first housing, the connector is protruding, and multiple through holes are opened on the end face of the connector, each through hole being aligned and connected with a corresponding assembly channel; a connector socket is formed on the front side of the second housing, the connector socket is matched with the connector, and the connector is securely connected to the connector socket.

[0011] In a further technical solution, a post is formed on the rear side of the first housing; a hole is formed on the front side of the second housing. When the first housing and the second housing are fastened together, the post is inserted into the hole, and adhesive is provided at the joint of the first housing and the second housing to seal the joint gap between them with an airtight seal.

[0012] The advantages of this invention compared to the prior art after adopting the above structure are:

[0013] 1. The funnel-shaped part of the assembly channel adopts an upward tilting design, which can guide the pin accurately to the fastening part and avoid rigid friction between the inner wall of the channel and the pin due to the insertion angle deviation. The first adhesive part formed by the curing of soft silicone in the lower part of the funnel is elastically set, which can provide a buffer when the pin is inserted, reduce the stress concentration at the moment of insertion, and prevent the pin plating from falling off or deforming. At the same time, the toothed structure and the snap-fit ​​of the first part of the PIN, together with the elastic support of the second adhesive part in the toothed groove, further disperse the lateral impact force during insertion, significantly reducing the probability of pin damage caused by misoperation or repeated insertion and removal.

[0014] 2. The fastening part of the assembly channel and the second part of the pin adopt an interference fit. Combined with the elastic clamping force of the first adhesive part of the funnel, a double fixing structure of "rigid limit + elastic clamping" is formed, which effectively prevents the pin from loosening or shifting due to external stress such as vibration and impact. In addition, the blocking part formed by the bending of the front end of the first part of the PIN contactes the bottom surface of the tooth groove, which can provide additional support in the lateral direction, greatly improving the connection stability of the pin under high frequency insertion and removal or strong vibration scenarios.

[0015] 3. The first adhesive part in the lower part of the funnel and the second adhesive part in the tooth groove are both made of elastic material, which can effectively absorb the instantaneous stress generated by external impact and prevent the pins from directly bearing the impact load as rigid components. At the same time, the elastic deformation characteristics of soft silicone can disperse the stress distribution, reduce the damage to the pins caused by local stress concentration, significantly improve the impact resistance of the connector in harsh environments such as outdoor equipment and automotive electronics, and extend the overall service life. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a cross-sectional schematic diagram of the present invention. Detailed Implementation

[0019] The following are merely preferred embodiments of the present invention and do not limit the scope of protection of the present invention.

[0020] like Figure 1 and Figure 2 As shown, a high-pin-strength 18-pin connector slot structure includes a first housing (1) and a second housing (2). The first housing (1) is located on the front side of the second housing (2), and the two are fastened together. The front side of the first housing (1) is provided with a socket (10), and the bottom of the socket (10) is formed with a toothed structure (11). The toothed structure (11) includes multiple toothed units (12). The second housing (2) is provided with multiple assembly channels (20). Each assembly channel (20) is aligned with each toothed unit (12) front and back. The assembly channel (20) includes a funnel part (201) and a fastening part (202) connected front and back. 01) It is inclined upward. Each assembly channel (20) has a PIN (3) inserted into its interior. The PIN (3) includes a first part (31) and a second part (32). The first part (31) is arranged in an arch shape and the second part (32) is arranged in a straight line. The second part (32) is inserted into the fastening part (202) of the assembly channel (20). One side of the second part (32) is inserted into the funnel part (201) of the assembly channel (20) and the other side is movably embedded in the corresponding toothed unit (12). The lower middle part of the funnel part (201) is formed by curing soft silicone to form a first adhesive part (41). The first adhesive part (41) is elastic.

[0021] Specifically, the interior of the toothed unit (12) is formed by curing soft silicone to form a second adhesive part (42). The second adhesive part (42) is elastically arranged and is located below the first part (31) of the PIN (3). The two are in contact and cooperate to form a buffer structure for the PIN (3).

[0022] Specifically, the depth of the toothed unit (12) is less than the arch height of the first part (31) of the PIN (3), and the depth of the toothed unit (12) is 1mm-2mm.

[0023] Specifically, the front end of the first part (31) of the PIN (3) is bent to form a stop (311), the stop (311) extends in the horizontal direction, and the stop (311) contacts and engages with the bottom surface of the groove of the toothed unit (12).

[0024] Specifically, the PIN (3) includes a PIN body made of copper material, with a width of not less than 0.3 mm and a thickness of not less than 0.15 mm.

[0025] Specifically, the rear side of the first housing (1) is formed with a connector (19), which is protruding and has multiple through holes on its end face. Each through hole is aligned and connected to the corresponding assembly channel (20). The front side of the second housing (2) is formed with a connection port (29), which matches the connector (19). The connector (19) is fastened to the connection port (29).

[0026] Specifically, the rear side of the first housing (1) is also formed with a post (91); the front side of the second housing (2) is also formed with a hole (92). When the first housing (1) and the second housing (2) are fastened together, the post (91) is inserted into the hole (92), and adhesive is provided at the joint of the first housing (1) and the second housing (2) to seal the joint gap between them with adhesive.

[0027] The advantages of the connector slot structure provided in this embodiment compared to the prior art are:

[0028] 1. The funnel-shaped part of the assembly channel adopts an upward tilting design, which can guide the pin accurately to the fastening part and avoid rigid friction between the inner wall of the channel and the pin due to the insertion angle deviation. The first adhesive part formed by the curing of soft silicone in the lower part of the funnel is elastically set, which can provide a buffer when the pin is inserted, reduce the stress concentration at the moment of insertion, and prevent the pin plating from falling off or deforming. At the same time, the toothed structure and the snap-fit ​​of the first part of the PIN, together with the elastic support of the second adhesive part in the toothed groove, further disperse the lateral impact force during insertion, significantly reducing the probability of pin damage caused by misoperation or repeated insertion and removal.

[0029] 2. The fastening part of the assembly channel and the second part of the pin adopt an interference fit. Combined with the elastic clamping force of the first adhesive part of the funnel, a double fixing structure of "rigid limit + elastic clamping" is formed, which effectively prevents the pin from loosening or shifting due to external stress such as vibration and impact. In addition, the blocking part formed by the bending of the front end of the first part of the PIN contactes the bottom surface of the tooth groove, which can provide additional support in the lateral direction, greatly improving the connection stability of the pin under high frequency insertion and removal or strong vibration scenarios.

[0030] 3. The first adhesive part in the lower part of the funnel and the second adhesive part in the tooth groove are both made of elastic material, which can effectively absorb the instantaneous stress generated by external impact and prevent the pins from directly bearing the impact load as rigid components. At the same time, the elastic deformation characteristics of soft silicone can disperse the stress distribution, reduce the damage to the pins caused by local stress concentration, significantly improve the impact resistance of the connector in harsh environments such as outdoor equipment and automotive electronics, and extend the overall service life.

[0031] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A 18-pin connector socket structure with high pin strength, characterized in that: It includes a first housing (1) and a second housing (2), with the first housing (1) located on the front side of the second housing (2), and the two are fastened together. The first housing (1) has a socket (10) on its front side, and the bottom of the socket (10) is formed with a toothed structure (11), which includes multiple toothed units (12). The second housing (2) has multiple assembly channels (20), each assembly channel (20) is aligned with each toothed unit (12) front and back. Each assembly channel (20) includes a funnel part (201) and a fastening part (202) connected front and back. The funnel part (201) is inclined upward. Each assembly channel (20) has a PIN (3) inserted inside. The PIN (3) includes a first part (31) and a second part (32). The first part (31) is arched and the second part (32) is straight. The second part (32) is inserted into the fastening part (202) of the assembly channel (20). One side of the second part (32) is inserted into the funnel part (201) of the assembly channel (20), and the other side is movably embedded in the corresponding toothed unit (12). The lower middle part of the funnel part (201) is formed by curing soft silicone to form a first adhesive part (41). The first adhesive part (41) is elastic.

2. The 18-pin connector slot structure with high pin strength according to claim 1, characterized in that: The interior of the toothed unit (12) is formed by curing soft silicone to form a second adhesive part (42). The second adhesive part (42) is elastically set and is located below the first part (31) of the PIN (3). The two are in contact and fit together to form a buffer structure for the PIN (3).

3. The 18-pin connector slot structure with high pin strength according to claim 2, characterized in that: The depth of the toothed unit (12) is less than the arch height of the first part (31) of the PIN (3), and the depth of the toothed unit (12) is 1mm-2mm.

4. The 18-pin connector slot structure with high pin strength according to claim 3, characterized in that: The front end of the first part (31) of the PIN (3) is bent to form a stop (311). The stop (311) extends in the horizontal direction and contacts the bottom surface of the groove of the toothed unit (12).

5. The 18-pin connector slot structure with high pin strength according to claim 4, characterized in that: The PIN (3) includes a PIN body made of copper material, with a width of not less than 0.3 mm and a thickness of not less than 0.15 mm.

6. The 18-pin connector slot structure with high pin strength according to claim 1, characterized in that: The rear side of the first housing (1) is formed with a connector (19), which is protruding. The end face of the connector (19) is provided with multiple through holes, and each through hole is aligned and connected with the corresponding assembly channel (20). The front side of the second housing (2) is formed with a connection port (29), which matches the connector (19), and the connector (19) is fastened to the connection port (29).

7. The 18-pin connector slot structure with high pin strength according to claim 6, characterized in that: The rear side of the first housing (1) is also formed with a post (91); the front side of the second housing (2) is also formed with a hole (92). When the first housing (1) and the second housing (2) are fastened together, the post (91) is inserted into the hole (92), and adhesive is provided at the joint of the first housing (1) and the second housing (2) to seal the joint gap between them.