Highly stable fool-proof connector housing
By setting positioning protrusions and grooves on the connector housing, combined with a limiting ring and a fiberglass shielding layer, the stability and anti-interference issues of the connector during alignment and mating are solved, thereby improving the stability and service life of the connector.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-05-23
- Publication Date
- 2026-07-07
AI Technical Summary
Existing connectors are prone to connection failure and short circuits when the male and female connectors are not aligned, and connectors with housings on the market have poor alignment and mating performance.
A foolproof connector housing was designed. By setting positioning protrusions and positioning grooves on the female and male heads, combined with the fixing of limit rings and self-tapping screws, the alignment is enhanced. A glass fiber fabric shielding layer is bonded to the surface of the housing to improve anti-interference and flame retardant performance.
This achieves unique alignment of male and female connectors, improves assembly accuracy and operational efficiency, enhances connector stability and anti-interference capabilities, reduces the probability of cable breakage, and extends service life.
Smart Images

Figure CN224472844U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, and in particular to a highly stable, foolproof connector housing. Background Technology
[0002] Connectors are components that electronic engineers frequently encounter. Their function is very simple: to bridge gaps in circuits or between isolated circuits, allowing current to flow and enabling the circuit to perform its intended function. Connectors are indispensable components in electronic equipment.
[0003] Since connectors include male and female connectors, if the pins and sockets are not accurately aligned, a series of problems such as connection failure and short circuits can easily occur. Although connectors with shells on the market have a certain shielding and corrosion resistance, they still have a certain obstruction effect on the alignment and mating of male and female connectors. Therefore, it is necessary to improve them. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a highly stable, foolproof connector housing that can improve the connection stability of male and female connectors and facilitate the alignment and assembly of pin holes of male and female connectors.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a highly stable, foolproof connector housing, including a female head and a male head. The female head has a socket structure on its mating surface, and the male head has a pin structure on its mating surface. The female head has a first housing formed on its outer surface, and a positioning protrusion is provided on the side of the first housing, extending along the length of the female head housing. The male head has a second housing formed on its outer surface, and a connecting sleeve is provided on the front side of the second housing. The inner wall of the connecting sleeve has a positioning groove extending along the length of the male head. During assembly, the connecting sleeve is fitted onto the first housing, and the positioning groove and the positioning protrusion engage in a limiting fit. At the same time, the socket structure is inserted into the pin structure. A limiting ring is also provided on the end face of the connecting sleeve, which is fixed to the connecting sleeve and engages with the end of the positioning protrusion in a limiting fit.
[0006] In a further technical solution, a shielding layer is bonded to the outer surface of the second housing. The shielding layer includes a surface structure made of glass fiber fabric to improve the connector's anti-interference performance and flame retardant performance.
[0007] In a further technical solution, the ends of the first housing and the second housing are respectively provided with lead wire sleeves, and the outer side of the lead wire sleeves is fused with a soft rubber anti-bending sleeve, which is used to cover the wire and reduce the probability of the wire breaking.
[0008] In a further technical solution, the limiting ring is connected to the connecting sleeve by a self-tapping screw.
[0009] In a further technical solution, the limiting ring includes a ring body made of stainless steel, and the limiting ring has multiple through holes, which are spaced apart along the circumference, and each through hole is fitted with a self-tapping screw.
[0010] In a further technical solution, the thickness of the shielding layer is 0.5mm-2mm.
[0011] In a further technical solution, the outer walls of the female head and the male head are formed with welding protrusions. When the first shell and the second shell are formed, their inner sides are respectively formed with the core action of the welding protrusions to form corresponding anchor point structures, so as to improve the welding stability of the first shell and the second shell.
[0012] The advantages of this invention compared to the prior art after adopting the above structure are:
[0013] 1. By matching the positioning protrusion of the female connector with the positioning groove on the inner side of the male connector's connecting sleeve, the male and female connectors are uniquely aligned, avoiding connection failure or short circuit caused by misalignment of the pins and sockets, thus significantly improving assembly accuracy and operational efficiency.
[0014] 2. The fit between the limiting ring and the positioning protrusion forms an axial limit to prevent the connecting sleeve from loosening from the first housing under vibration; the stainless steel limiting ring fixed by self-tapping screws provides sufficient mechanical strength to ensure long-term stability.
[0015] 3. The glass fiber shielding layer has both electromagnetic shielding and flame retardant properties, and its thickness is optimized to 0.5-2mm, ensuring lightweight design while meeting industrial environmental requirements.
[0016] 4. The anchor point structure formed by the welded protrusions enhances the bonding force between the outer shell and the internal joint, reducing the risk of shell separation due to external forces.
[0017] 5. The fusion design of the lead wire sleeve and the soft rubber anti-bending sleeve effectively disperses the bending stress of the wire, reduces the probability of cable breakage, and extends the service life of the connector. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] Figure 1 This is a schematic diagram of the structure of this utility model.
[0020] Figure 2 yes Figure 1 Enlarged view of point A in the image. Detailed Implementation
[0021] The following are merely preferred embodiments of the present invention and do not limit the scope of protection of the present invention.
[0022] like Figure 1 and Figure 2 As shown, a highly stable, foolproof connector housing includes a female connector 1 and a male connector 2. The female connector 1 has a socket structure on its mating surface, and the male connector 2 has a pin structure on its mating surface. The female connector 1 has a first housing 4 formed on its outer surface, and a positioning protrusion 41 is provided on the side of the first housing 4, extending along the length of the female connector 1 housing. The male connector 2 has a second housing 5 formed on its outer surface, and a connecting sleeve 51 is provided on the front side of the second housing 5. The inner side wall of the connecting sleeve 51 has a positioning groove 52 extending along the length of the male connector 2. During assembly, the connecting sleeve 51 is fitted onto the first housing 4, and the positioning groove 52 and the positioning protrusion 41 are matched for limiting engagement. At the same time, the socket structure is inserted into the pin structure. The end face of the connecting sleeve 51 is also provided with a limiting ring 8, which is fixed to the connecting sleeve 51 and is matched for limiting engagement with the end of the positioning protrusion 41.
[0023] By cooperating with the positioning protrusion 41 of the female head 1 and the positioning groove 52 on the inner side of the connecting sleeve 51 of the male head 2, the unique alignment of the male and female heads is achieved, avoiding connection failure or short circuit caused by misalignment of the pins and sockets, and significantly improving assembly accuracy and operating efficiency.
[0024] Specifically, a shielding layer 6 is bonded to the outer surface of the second housing 5. The shielding layer 6 includes a surface structure made of fiberglass fabric to improve the connector's anti-interference performance and flame-retardant performance. The thickness of the shielding layer 6 is 0.5mm-2mm. In this embodiment, the thickness of the shielding layer 6 is 1mm.
[0025] The glass fiber shielding layer 6 combines electromagnetic shielding and flame retardant properties, with an optimized thickness of 0.5-2mm, ensuring lightweight design while meeting industrial environmental requirements.
[0026] Specifically, the ends of the first outer shell 4 and the second outer shell 5 are respectively provided with lead wire sleeves, and the outer side of the lead wire sleeve is fused with a soft rubber anti-bending sleeve 7, which is used to cover the wire 9 and reduce the probability of the wire 9 being broken.
[0027] The fusion design of the lead sleeve and the soft rubber anti-bending sleeve 7 effectively disperses the bending stress of the wire, reduces the probability of cable breakage, and extends the service life of the connector.
[0028] Specifically, the limiting ring 8 is connected to the connecting sleeve 51 by a self-tapping screw 81.
[0029] The engagement between the limiting ring 8 and the end of the positioning protrusion 41 forms an axial limit, preventing the connecting sleeve 51 from loosening from the first outer shell 4 under vibration. The stainless steel limiting ring 8, fixed by the self-tapping screw 81, provides sufficient mechanical strength to ensure stability during long-term use.
[0030] Specifically, the limiting ring 8 includes a ring body made of stainless steel. The limiting ring 8 has multiple through holes, which are spaced apart along the circumference. Each through hole is fitted with a self-tapping screw 81.
[0031] Specifically, the outer walls of the female head 1 and the male head 2 are formed with welding protrusions 3. When the first outer shell 4 and the second outer shell 5 are formed, their inner sides are formed with corresponding anchor point structures through the core action of the welding protrusions 3, so as to improve the welding stability of the first outer shell 4 and the second outer shell 5.
[0032] The anchor point structure formed by the weld protrusion 3 enhances the bonding force between the outer shell and the internal joint, reducing the risk of shell separation due to external forces.
[0033] 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 highly stable, foolproof connector housing, comprising a female connector (1) and a male connector (2), wherein the female connector (1) has a socket structure on its mating surface and the male connector (2) has a pin structure on its mating surface, characterized in that: The female connector (1) has a first outer shell (4) formed on its outer surface. The side of the first outer shell (4) has a positioning protrusion (41) that extends along the length of the female connector (1) outer shell. The male connector (2) has a second outer shell (5) formed on its outer surface. The front of the second outer shell (5) has a connecting sleeve (51). The inner wall of the connecting sleeve (51) has a positioning groove (52) that extends along the length of the male connector (2). During assembly, the connecting sleeve (51) is fitted onto the first outer shell (4), and the positioning groove (52) and the positioning protrusion (41) are matched for positioning. At the same time, the insertion hole structure is inserted into the insertion pin structure. The end face of the connecting sleeve (51) is also provided with a limiting ring (8), which is fixed to the connecting sleeve (51) and the limiting ring (8) is matched with the end of the positioning protrusion (41).
2. The high-stability, foolproof connector housing according to claim 1, characterized in that: The outer surface of the second housing (5) is bonded with a shielding layer (6), which includes a surface structure made of glass fiber fabric to improve the connector's anti-interference performance and flame retardant performance.
3. The high-stability, foolproof connector housing according to claim 2, characterized in that: The first outer shell (4) and the second outer shell (5) are respectively provided with lead wire sleeves at their ends. A soft rubber anti-bending sleeve (7) is fused to the outside of the lead wire sleeve for fitting onto the wire (9) to reduce the probability of the wire (9) breaking.
4. The high-stability, foolproof connector housing according to claim 3, characterized in that: The limiting ring (8) is connected to the connecting sleeve (51) by a self-tapping screw (81).
5. The high-stability, foolproof connector housing according to claim 4, characterized in that: The limiting ring (8) includes a ring body made of stainless steel. The limiting ring (8) has multiple through holes, which are distributed at intervals along the circumference. Each through hole is fitted with a self-tapping screw (81).
6. The high-stability, foolproof connector housing according to claim 2, characterized in that: The thickness of the shielding layer (6) is 0.5mm-2mm.
7. The high-stability, foolproof connector housing according to claim 1, characterized in that: The outer walls of the female head (1) and the male head (2) are formed with welding protrusions (3). When the first shell (4) and the second shell (5) are formed, their inner sides are formed with corresponding anchor point structures through the core action of the welding protrusions (3) to improve the welding stability of the first shell (4) and the second shell (5).