CN113270759A

CN113270759A - Connector and assembling method thereof

Info

Publication number: CN113270759A
Application number: CN202110678150.8A
Authority: CN
Inventors: 顾一新
Original assignee: Dongguan Zhengyang Electronic Mechanical Co ltd
Current assignee: Dongguan Zhengyang Electronic Mechanical Co ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-08-17

Abstract

The invention discloses a connector and an assembling method thereof. The connector comprises a male end and a female end, the male end comprises a male end main body and a male end PIN needle, the male end main body is provided with an inserting cavity with an inserting opening, and a first end of the male end PIN needle penetrates through the bottom wall of the inserting cavity opposite to the inserting opening; the female end comprises a female end main body and a female end PIN needle, the female end main body comprises an inserting part and a fixing part which are connected, the inserting part is inserted into the inserting cavity from the inserting opening, the fixing part is provided with an exhaust hole which penetrates through the fixing part along the length direction of the female end main body, and a sealing plug is arranged in the exhaust hole and is abutted against the inner side wall of the exhaust hole; female end PIN needle sets up on female end main part and is connected with the first end of public end PIN needle. In the process of inserting the inserting part of the female end body into the inserting cavity of the male end body, air in the inserting cavity can be removed through the exhaust holes in the fixing part, so that the male end and the female end of the connector can be inserted easily during assembly, and blind assembly butt joint in a sealing assembly space is achieved.

Description

Connector and assembling method thereof

Technical Field

The invention relates to the technical field of connectors, in particular to a connector and an assembling method thereof.

Background

In electronic devices, connectors for achieving electrical connection are almost indispensable components that can achieve both power supply connection and signal connection. However, the conventional connector has some defects in design, which causes the assembling process to be inconvenient, for example, the assembling space of the male end and the female end is in a sealed state, so that the air pressure in the assembling space is large, the male end and the female end are difficult to be inserted into each other due to the influence of the air pressure in the assembling space when being plugged, and the assembling efficiency is low.

In addition, the case that the assembly connector in the pipe and the joint which are smaller than 7mm is directly pressed in by adopting a plastic support is adopted in the market at present and is fixed by a dead buckle, but the assembly connector cannot be disassembled and assembled and does not have a sealing function. And the FPCB is adopted for leading out, then the welding wire harness is subjected to dispensing and sealing, and the copper foil is coated after shielding. Or leading out by adopting a flexible wire, welding by a single wire, and dispensing and coating the copper foil for shielding treatment. These methods have the risk of handling difficulties and of the glue being weather-resistant and not sealable. Therefore, it is desirable to design a connector that has better sealing performance and is easy to plug.

Disclosure of Invention

One object of the present invention is to provide a connector that enables blind mating of male and female ends thereof in a sealed fitting space.

Another object of the present invention is to provide a method for assembling a connector, which is applied to the above connector.

To achieve the purpose, on one hand, the invention adopts the following technical scheme:

a connector comprises a male end and a female end, wherein the male end comprises a male end main body and a male end PIN needle, the male end main body is provided with an inserting cavity with an inserting opening, and a first end of the male end PIN needle penetrates through the bottom wall of the inserting cavity opposite to the inserting opening; the female end comprises a female end body and a female end PIN needle, the female end body comprises an inserting part and a fixing part which are connected, the inserting part is inserted into the inserting cavity from the inserting opening, the fixing part is provided with an exhaust hole which penetrates through the fixing part along the length direction of the female end body, and a sealing plug is arranged in the exhaust hole and is abutted against the inner side wall of the exhaust hole; female end PIN needle set up in female end is last, just female end PIN needle with public end PIN needle first end is connected.

In some embodiments, the side wall of the sealing plug is provided with a sealing sheet which is obliquely arranged, the sealing sheet comprises a fixed end and a free end opposite to the fixed end, the fixed end is fixedly connected with the side wall of the sealing plug, and the free end abuts against the inner side wall of the exhaust hole and is far away from the side wall of the sealing plug.

In some embodiments, the female PIN is a hollow structure, the female PIN comprises a first part and a second part which are integrally formed, and the inner diameter of the first part is smaller than the inner diameter of the second part and smaller than the outer diameter of the male PIN; the first part is kept away from the one end tip of second part is equipped with PIN needle plug opening, the lateral wall of female end PIN needle is equipped with the gap that extends from the tip of first part towards the direction of second part, male end PIN needle follow PIN needle plug opening insert in the female end PIN needle in order to be connected with female end PIN needle.

In some embodiments, a first female end chamfer is arranged at one end part of the insertion part far away from the fixed part, and a first male end chamfer is arranged on the inner wall surface of the insertion opening; and/or, female end PIN needle set up in female end main part is inside, grafting portion keeps away from be equipped with the through-hole on the one end tip of fixed part, public end PIN needle first end pass the through-hole with female end PIN needle is connected, the internal face of through-hole is equipped with the female end chamfer of second, the first end tip of public end PIN needle is equipped with the public end chamfer of second.

In some embodiments, the distance of the plug opening to an inner wall surface of a bottom wall of the plug chamber opposite the plug opening is greater than the length of the plug portion; and/or an assembly gap is arranged between the side wall of the insertion part and the side wall of the insertion cavity; and/or part of the inner surface of the side wall of the insertion cavity is provided with a male end assembly plane, and the side wall of the insertion part is provided with a female end assembly plane matched with the male end assembly plane.

In some embodiments, the connector further includes a connector body and a butt joint, the butt joint and the male end body are both disposed on the connector body, an outer wall of one end of the fixing portion, which is far away from the insertion portion, is provided with a limit flange, the fixing portion is disposed in the butt joint in a penetrating manner, the limit flange abuts against an end face of the butt joint, and the insertion portion extends out of the butt joint; the locating elastic piece is sleeved on the side wall of the fixing portion and comprises an elastic piece main body and a plurality of elastic buckles, the elastic buckles are distributed at intervals along the circumferential direction of the elastic piece main body, each elastic buckle is outwards protruded, a locating groove is formed in the inner wall of the butt joint along the circumferential direction, and the elastic buckles are elastically abutted to the locating groove.

In some embodiments, the positioning elastic sheet further includes a detaching guide piece, the detaching guide piece includes a bending protrusion and an extending portion, two ends of the bending protrusion are respectively connected to the elastic sheet main body and the extending portion, the bending protrusion elastically abuts against the positioning groove, and a gap is formed between the extending portion and the positioning groove.

In some embodiments, a guide groove is formed in an inner side wall of the butt joint, a guide protrusion corresponding to the guide groove is formed in a side wall of the fixing portion, and the guide protrusion is inserted into the guide groove.

In some embodiments, the connector further includes a circuit board, the PIN at the male end is connected to the circuit board, the main body at the male end is provided with a positioning column and/or a positioning clamping rib, the circuit board is provided with a positioning hole and/or a clamping groove, the positioning column is inserted into the positioning hole, and the positioning clamping rib is clamped in the clamping groove.

In some embodiments, the male end body is further provided with a positioning rib, the positioning rib is connected to the bottom wall of the insertion cavity and extends in a direction away from the insertion opening, and a bottom surface of the positioning rib abuts against the circuit board.

On the other hand, the invention adopts the following technical scheme:

an assembling method of a connector is applied to the connector, and comprises the following steps: providing a male end and a female end of a connector; inserting the insertion part of the female end main body of the female end into the insertion cavity of the male end main body of the male end, and connecting the male end PIN needle of the male end with the female end PIN needle of the female end; and installing a sealing plug into the exhaust hole of the female end main body, so that the sealing plug is abutted against the inner side wall of the exhaust hole.

The invention has at least the following beneficial effects:

according to the connector, the vent hole is designed on the fixing part of the female end main body, so that in the process of inserting the inserting part of the female end main body into the inserting cavity of the male end main body, air in the inserting cavity can be exhausted through the vent hole, the problem that the inserting part of the female end main body is difficult to insert due to high air pressure in the inserting cavity is avoided, the male end and the female end of the connector are easier to insert when being assembled, and the assembly efficiency is improved; after the male end and the female end are assembled, the sealing plug is arranged in the exhaust hole for plugging so as to improve the sealing property of the inner space of the connector and protect the inner electronic components.

According to the assembling method of the connector, in the process of inserting the inserting part of the female end main body into the inserting cavity of the male end main body, air in the inserting cavity is exhausted through the exhaust hole in the fixing part of the female end main body, so that the male end and the female end of the connector are easier to insert when being assembled, blind assembling butt joint in a sealed assembling space is realized, and the assembling efficiency is improved; after the male end and the female end are assembled, the sealing plug is arranged in the exhaust hole for plugging so as to improve the sealing property of the inner space of the connector and protect the inner electronic components.

Drawings

Fig. 1 is a schematic structural diagram of a connector according to an embodiment of the present invention;

FIG. 2 is a schematic view of the connector of FIG. 1 at another angle;

FIG. 3 is a partially exploded view of the connector of FIG. 2;

FIG. 4 is a schematic view of another angle configuration of the connector shown in FIG. 3;

fig. 5 is a second schematic structural diagram of a connector according to the embodiment of the invention;

FIG. 6 is a schematic view of another angled configuration of the connector shown in FIG. 5;

fig. 7 and 8 are cross-sectional views of a connector provided by an embodiment of the present invention;

fig. 9 is a third schematic structural diagram of a connector according to an embodiment of the present invention;

FIGS. 10-12 are partial cross-sectional views of the connector of FIG. 9;

FIG. 13 is a partial cross-sectional view of a hose coated around a butt joint according to an embodiment of the present invention;

FIG. 14 is a partial cross-sectional view of a butt joint coated with a hard tube at the outer periphery thereof according to an embodiment of the present invention;

FIG. 15 is a schematic structural diagram of a male terminal according to an embodiment of the present invention;

FIG. 16 is a schematic view of the male end of FIG. 15 at another angle;

fig. 17 is a schematic structural diagram of a male terminal and a circuit board according to an embodiment of the invention;

FIG. 18 is a schematic view of the male end and circuit board of FIG. 17 at another angle;

fig. 19 is a second schematic structural view of a male terminal according to the embodiment of the invention;

FIG. 20 is a schematic view of the male end of FIG. 19 at an alternative angle;

fig. 21 is a second schematic structural diagram of the male terminal and the circuit board according to the embodiment of the invention;

FIG. 22 is a schematic structural diagram of a female terminal according to an embodiment of the present invention;

FIG. 23 is a schematic view of another angle of the female end of FIG. 22;

fig. 24 is a schematic structural diagram of a female PIN according to an embodiment of the present invention;

fig. 25 is a schematic structural view of a positioning spring plate according to an embodiment of the present invention;

fig. 26 is a schematic view of an embodiment of the present invention providing a shield structure added to a connector;

fig. 27 is a flowchart of an assembling method of a connector according to an embodiment of the present invention.

The reference numbers illustrate:

10. a male end; 11. a male end body; 111. chamfering the first male end; 12. a PIN at the male end; 121. a first end; 1211. chamfering the second male end; 122. a second end; 123. a first PIN portion; 124. a second PIN portion; 13. an insertion opening; 14. an insertion cavity; 141. a male end assembly plane; 15. a positioning column; 151. a large positioning column; 152. a small positioning column; 16. positioning the clamping bone; 17. positioning the bone;

20. a female end; 21. a female end body; 211. a plug-in part; 2111. a female end assembly plane; 2112. chamfering the second female end; 212. a fixed part; 213. an exhaust hole; 2131. a small-diameter hole; 2132. a large-diameter hole; 214. chamfering the first female end; 215. a limiting flange; 216. a guide projection; 22. a female PIN; 221. a first portion; 222. a second portion; 223. the PIN needle is inserted into the opening; 224. a gap; 23. a sealing plug; 24. sealing the sheet; 25. positioning the elastic sheet; 251. a spring plate main body; 252. snapping; 253. disassembling the guide sheet; 2531. bending the convex part; 2532. an extension portion;

30. butt joints; 31. positioning a groove; 32. a guide groove; 41. a PIN elastic deformation space; 42. an assembly gap; 43. a gap; 50. an O-shaped sealing ring; 60. a circuit board; 61. positioning holes; 62. a card slot; 70. a wire harness; 81. a hose; 82. a hard tube; 91. a shielded wire; 92. the grounding is connected with the elastic sheet.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

The embodiment provides a connector which can be applied to the fields of, but not limited to, urea sensors, ultrasonic sensors, fuel sensors, electric appliance pipe butt joints, electric appliance cavity sealing and plugging and the like.

As shown in fig. 1-26, the connector includes a male end 10 and a female end 20, the male end 10 includes a male end body 11 and a male end PIN 12, the male end body 11 is provided with a plugging chamber 14 having a plugging opening 13, the male end PIN 12 includes a first end 121 for connecting the female end PIN 22 and a second end 122 for connecting other components (such as a circuit board 60), the first end 121 of the male end PIN 12 penetrates through a bottom wall of the plugging chamber 14 opposite to the plugging opening 13; the female end 20 comprises a female end main body 21 and a female end PIN 22, the female end main body 21 comprises a connection insertion part 211 and a fixing part 212 which are connected, the fixing part 212 is used for welding and connecting corresponding terminals of the wiring harness 70, the connection insertion part 211 is inserted into the connection chamber 14 from the connection insertion opening 13, the fixing part 212 is provided with an exhaust hole 213 which penetrates through the fixing part 212 along the length direction of the female end main body 21, and a sealing plug 23 is arranged in the exhaust hole 213 and abuts against the inner side wall of the exhaust hole 213; female end PIN needle 22 sets up on female end main part 21, and female end PIN needle 22 is connected with first end 121 of public end PIN needle 12.

In the connector, the vent hole 213 is designed on the fixing part 212 of the female end main body 21, so that in the process of inserting the insertion part 211 of the female end main body 21 into the insertion cavity 14 of the male end main body 11, air in the insertion cavity 14 can be exhausted through the vent hole 213, and the problem that the insertion part 211 of the female end main body 21 is difficult to insert due to high air pressure in the insertion cavity 14 is avoided, so that the male end 10 and the female end 20 of the connector are easier to insert during assembly, blind assembly and butt joint in a sealed assembly space are realized, and the assembly efficiency is improved; after the male terminal 10 and the female terminal 20 are assembled, the sealing plug 23 is inserted into the exhaust hole 213 for plugging, so as to improve the sealing performance of the internal space of the connector and protect the internal electronic components.

In the embodiment shown in fig. 10, the vent hole 213 is designed as a stepped hole, the stepped hole includes a small diameter hole 2131 and a large diameter hole 2132 which are communicated with each other, the diameter of the large diameter hole 2132 is larger than that of the small diameter hole 2131, so that the joint of the small diameter hole 2131 and the large diameter hole 2132 forms a limit step for limiting the assembly limit position of the sealing plug 23, and when the sealing plug 23 is inserted into the vent hole 213 from one end of the large diameter hole 2132 until the sealing plug abuts against the limit step, it is indicated that the sealing plug 23 is installed in place. Of course, in other embodiments, a limiting member may be disposed on the inner sidewall of the exhaust hole 213, and the limiting member may be a limiting member or a limiting flange 215 disposed along the circumference of the exhaust hole 213, and the limiting member may also limit the assembly limit position of the sealing plug 23. It can be understood that, in order to further improve the sealing reliability, a dispensing space may be reserved at the rear end of the sealing plug 23 (i.e. the end far away from the insertion portion 211) for dispensing to perform secondary sealing.

As shown in fig. 10, in some embodiments, the sidewall of the sealing plug 23 is provided with a plurality of sealing sheets 24, the sealing sheets 24 are disposed at intervals along the circumference of the sealing plug 23, or the sealing sheets 24 are disposed in a ring shape and are sleeved on the circumference of the sealing plug 23, each sealing sheet 24 includes a fixed end and a free end opposite to the fixed end, the fixed end is fixedly connected to the sidewall of the sealing plug 23, and the free end abuts against the inner sidewall of the air outlet 213 and is disposed away from the sidewall of the sealing plug 23, so that when the sealing plug 23 is plugged into the air outlet 213, air in the air outlet 213 can be exhausted along the direction from the fixed end to the free end of the sealing sheet 24 by being pressed, and when air is applied from the outside in the direction from the free end to the fixed end, the sealing sheet 24 can exert a reverse acting force to prevent outside air from entering the plugging chamber 14, and can press the sealing sheet 23 in the direction close to the plugging portion 211, so that sealing is stronger, and also plays a role in preventing the sealing plug 23 from retreating.

Preferably, in order to avoid risks such as too large accumulated tolerance or deviation from being loaded in due to multi-part assembly, as shown in fig. 8, a first female end chamfer 214 is designed at an end portion of the insertion portion 211 of the female end main body 21 far away from the fixing portion 212, and a first male end chamfer 111 is designed at an inner wall surface of the insertion opening 13 of the male end main body 11, wherein the first male end chamfer 111 and the first female end chamfer 214 play a role in guiding so as to facilitate the insertion of the insertion portion 211 into the insertion chamber 14, thereby realizing that the male end 10 and the female end 20 can be effectively assembled in a local deviation state, effectively avoiding the disadvantage that the surfaces are difficult to be inserted in alignment or cannot be inserted, and improving the assembly efficiency.

As shown in fig. 24, in some embodiments, the female PIN 22 has a hollow structure, the female PIN 22 includes a first portion 221 and a second portion 222 which are integrally formed, and the inner diameter of the first portion 221 is smaller than the inner diameter of the second portion 222 and smaller than the outer diameter of the male PIN 12; the end of the first part 221 away from the second part 222 is provided with a PIN insertion opening 223, the side wall of the female PIN 22 is provided with a slit 224 extending from the end of the first part 221 in the direction of the second part 222, and the male PIN 12 is inserted into the female PIN 22 from the PIN insertion opening 223 to be connected with the female PIN 22. Specifically, the inner diameter of the first portion 221 is smaller than the inner diameter of the second portion 222 so that the female PIN 22 forms a necking process, and since the inner diameter of the first portion 221 is smaller than the outer diameter of the male PIN 12 and the side wall of the female PIN 22 extends from the end of the first portion 221 to the direction of the second portion 222, the first portion 221 has elastic deformation along the radial direction, when the male PIN 12 is inserted into the female PIN 22 from the PIN insertion opening 223, the first portion 221 can elastically clamp the male PIN 12, so that the male PIN 12 is tightly fitted to the female PIN 22, and contact conduction is achieved. Optionally, the PIN 22 at the female end may be obtained by CNC (computer numerical control) processing of an original bar material, and the plate material may be used to make the PIN synchronously by a terminal machine, and the terminal-crimping terminal may be connected to the wire harness 70 by a bonding wire, or the wire harness 70 and the PIN 22 at the female end may be combined into a whole by a terminal-crimping method.

As shown in fig. 7, in some embodiments, the female PIN 22 is disposed inside the female body 21, a through hole is disposed on an end portion of the insertion portion 211 away from the fixing portion 212, the first end 121 of the male PIN 12 passes through the through hole to be connected with the female PIN 22, a second female chamfer 2112 is disposed on an inner wall surface of the through hole, a second male chamfer 1211 is disposed on the end portion of the first end 121 of the male PIN 12, and the second male chamfer 1211 and the second female chamfer 2112 play a role in guiding so that the male PIN 12 and the female PIN 22 are inserted into each other.

In some embodiments, as shown in fig. 8, the distance of the plug opening 13 to the inner wall surface of the bottom wall of the plug chamber 14 opposite the plug opening 13 is greater than the length of the plug portion 211; and/or, as shown in fig. 8, a fitting gap 42 is provided between a side wall of the insertion part 211 and a side wall of the insertion chamber 14; and/or, as shown in fig. 4, a part of the inner surface of the sidewall of the plugging chamber 14 is provided with a male end assembling plane 141, and the sidewall of the plugging portion 211 is provided with a female end assembling plane 2111 matched with the male end assembling plane 141. It can be understood that, in order to avoid the risk that the accumulated tolerance is too large or the assembling is biased and the assembling cannot be carried out due to the assembling and the installation of multiple parts, the distance from the plug opening 13 to the inner wall surface of the bottom wall of the plug cavity 14 opposite to the plug opening 13 is designed to be larger than the length of the plug part 211, so that the PIN elastic deformation space 41 is reserved for the male end 10 and the female end 20; the assembly gap 42 is reserved between the side wall of the insertion part 211 and the side wall of the insertion cavity 14, so that the position deviation caused by deformation is absorbed conveniently; by providing a part of the inner surface of the sidewall of the socket chamber 14 as the male-end fitting plane 141 and providing the female-end fitting plane 2111 on the sidewall of the socket portion 211, positioning fool-proofing can be achieved by the contact of the female-end fitting plane 2111 with the male-end fitting plane 141 during assembly.

Referring to fig. 9-14, in some embodiments, the connector further includes a connector body (not shown) and a butt joint 30, wherein the butt joint 30 and the male end body 11 are both disposed on the connector body, and the butt joint 30 is a hollow structure with two open ends; the fixing portion 212 is provided with a limiting flange 215 (as shown in fig. 11) on an outer wall of an end thereof away from the insertion portion 211, the fixing portion 212 is inserted into the docking connector 30, the limiting flange 215 abuts against an end surface of the docking connector 30, and the insertion portion 211 extends out of the docking connector 30. Further, the side wall of the fixing portion 212 is sleeved with a positioning elastic sheet 25, as shown in fig. 25, the positioning elastic sheet 25 includes an elastic sheet main body 251 and a plurality of elastic buckles 252, the plurality of elastic buckles 252 are distributed along the circumferential direction of the elastic sheet main body 251 at intervals, each elastic buckle 252 protrudes outwards, as shown in fig. 11, the inner wall of the butt joint 30 is provided with a positioning groove 31 along the circumferential direction, and the elastic buckles 252 elastically abut against the positioning groove 31. Specifically, the female end 20 is inserted into the male end 10 by guiding the butt joint 30, so as to achieve connection and conduction between the male end 10 and the female end 20, in order to prevent the female end 20 from coming off the butt joint 30 backwards (i.e. towards a direction away from the male end 10) after assembly, a positioning elastic sheet 25 is designed on the side wall of the fixing part 212 of the female end 20, a positioning groove 31 is designed on the butt joint 30 to position the positioning elastic sheet 25, and the elastic buckle 252 elastically abuts against the positioning groove 31 to achieve backward limiting of the female end 20; meanwhile, since there is no limit to push the female terminal 20 forward (i.e. toward the direction close to the male terminal 10), which may damage the internal components and cause the functional failure of the internal components, the outer wall of the end of the fixing portion 212 far away from the inserting portion 211 is provided with a limit flange 215, the limit flange 215 and the fixing portion 212 form a positioning step surface, and the limit flange 215 abuts against the end surface of the butt joint 30 when the female terminal 20 and the butt joint 30 are assembled, so as to limit the female terminal 20 forward.

As shown in fig. 25, in some embodiments, in order to realize the detachable connection between the female end 20 and the butt joint 30, the positioning spring 25 further includes a detaching guide piece 253, as shown in fig. 12, the detaching guide piece 253 includes a bending protrusion portion 2531 and an extension portion 2532, two ends of the bending protrusion portion 2531 are respectively connected to the spring main body 251 and the extension portion 2532, the bending protrusion portion 2531 elastically abuts against the positioning groove 31, and a gap 43 is formed between the extension portion 2532 and the positioning groove 31. When the female end 20 needs to be removed and replaced, the pressing sheet is inserted into the gap 43 reserved between the extension portion 2532 of the removal guide sheet 253 and the positioning groove 31 of the connector, and when the pressing sheet presses the bending protrusion portion 2531 of the removal guide sheet 253 to be separated from the positioning groove 31, the female end 20 can be pulled out for removal and replacement.

As shown in fig. 9, in some embodiments, when the female terminal 20 is inserted into the male terminal 10 through the docking connector 30, in order to ensure that the female terminal 20 is inserted into the male terminal 10 correctly, a guide groove 32 is formed on the inner sidewall of the docking connector 30, a guide protrusion 216 corresponding to the guide groove 32 is formed on the sidewall of the fixing portion 212, and the guide protrusion 216 is inserted into the guide groove 32. It can be understood that the protrusions are correspondingly inserted into the guide grooves 32 for assembly, and particularly, when the inside of the butt joint 30 is a cylindrical hole and the female end body 21 is a cylindrical body, the female end body 21 can be rotated randomly during insertion, so that accurate positioning insertion cannot be performed, and the guide protrusions 216 and the guide grooves 32 can prevent the female end body 21 from rotating and deviating, so that accurate positioning insertion to a specified position can be performed.

As shown in fig. 10 and 11, an O-ring 50 is disposed between the sidewall of the fixing portion 212 of the female end body 21 and the inner sidewall of the butt joint 30, and the O-ring 50 is sleeved on the sidewall of the female end body 21 to improve the sealing performance of the inner space of the connector, prevent liquid substances and harmful gases from entering and corroding electronic components, thereby preventing the electronic components from being out of function and effectively protecting the internal electronic components.

Optionally, the male end body 11 and the female end body 21 may be made of plastic material or rubber material, and the butt joint 30 may be made of plastic material, rubber material or metal material. Referring to fig. 22 and 23, in the present embodiment, a plastic female terminal body 21 is used as an installation base of the female terminal 20, the female PIN 22 and the wire harness 70 are welded or terminated into a whole and then installed in the female terminal body 21 (as shown in fig. 22), and then the female PIN 22 and the wire harness 70 are fixed to the female terminal body 21 by two-shot molding (as shown in fig. 23). As shown in fig. 13, the outer periphery of the butt joint 30 may be covered by a flexible tube 81 (e.g., a bamboo-joint plastic flexible tube or a bamboo-joint rubber flexible tube), and an O-ring 50 is disposed between the butt joint 30 and the flexible tube 81 to improve the sealing reliability of the joint between the butt joint 30 and the flexible tube 81; alternatively, as shown in fig. 14, the outer circumference of the butt joint 30 may be covered by a hard pipe 82 (e.g., a cylindrical rigid plastic pipe or a cylindrical metal steel pipe), and an O-ring 50 is disposed between the butt joint 30 and the hard pipe 82 to achieve radial sealing.

Referring to fig. 16-21, in some embodiments, the connector further includes a circuit board 60, the PIN 12 is connected to the circuit board 60, the male end body 11 is provided with a positioning post 15 and/or a positioning rib 16, the circuit board 60 is provided with a positioning hole 61 corresponding to the positioning post 15 and/or a locking groove 62 corresponding to the positioning rib 16, the positioning post 15 is inserted into the positioning hole 61, and the positioning rib 16 is locked in the locking groove 62. Specifically, the PIN 12 of the male PIN is connected to the circuit board 60 by welding, so as to realize circuit conduction, in order to ensure that the PIN 12 of the male PIN is welded to the circuit board 60, the PIN 12 of the male PIN is at a designated position, and therefore the positioning column 15 and the positioning clip rib 16 are arranged on the main body 11 of the male PIN, the circuit board 60 is provided with a corresponding positioning hole 61 and a corresponding clamping groove 62 in a matching manner, so that the main body 11 of the male PIN is inserted into the positioning hole 61 and the positioning clip rib 16 through the positioning column 15 and clamped in the clamping groove 62 to be positioned and mounted on the circuit board 60.

Optionally, the number of the positioning columns 15 and the positioning holes 61 can be set according to actual requirements, when the positioning holes 61 and the positioning columns 15 are both set to be multiple, the positioning columns 15 are inserted into the positioning holes 61 in a one-to-one correspondence manner. For example, in the embodiment shown in fig. 16 and 18, the positioning holes 61 and the positioning columns 15 are provided in two, and the two positioning columns 15 are inserted into a plurality of two positioning holes 61 in a one-to-one correspondence manner. Further, when the positioning holes 61 and the positioning posts 15 are provided in plural, two positioning posts 15 in different sizes and two positioning holes 61 in different sizes can be designed to perform the foolproof function, for example, in the embodiment shown in fig. 20 and 21, three positioning posts 15 and three positioning holes 61 are provided, three positioning posts 15 are arranged in a triangle, the three positioning posts 15 include a large positioning post 151 and two small positioning posts 152, and the width of the large positioning post 151 is greater than that of the small positioning posts 152; the three positioning holes 61 include a large positioning hole and two small positioning holes, the wide hole of the large positioning column 151 is larger than the wide hole of the small positioning column 152, the large positioning column 151 is inserted into the large positioning hole, and the two small positioning columns 152 are inserted into the small positioning holes in a one-to-one correspondence manner.

Furthermore, in order to prevent the whole male PIN body 11 from warping beyond the assembly boundary due to the process of the male PIN 12 after the male PIN 12 is connected to the circuit board 60, a positioning rib 17 is further disposed on the male PIN body 11, the positioning rib 17 is connected to the bottom wall of the plugging chamber 14 and extends in the direction away from the plugging opening 13, the bottom surface of the positioning rib 17 abuts against the circuit board 60, so that the positioning rib 17 can serve as a positioning fulcrum and extends in the direction away from the plugging opening 13 for a distance to tighten the male PIN body 11, and the positioning post 15 and/or the positioning rib 16 are combined to enable the male PIN body 11 to be horizontally placed on the circuit board 60 to prevent the male PIN body 11 from warping.

Alternatively, the PIN 12 may be mounted on the PIN body 11 at 90 ° or 180 °. Illustratively, as shown in fig. 16-17, when the PIN 12 is mounted on the PIN body 11 at an angle of 90 °, the PIN 12 includes a first PIN portion 123 and a second PIN portion 124 perpendicularly connected to the first PIN portion 123, one end of the first PIN portion 123 is connected to the circuit board 60, the other end of the first PIN portion 123 is connected to one end of the second PIN portion 124, and the other end of the second PIN portion 124 passes through the bottom wall of the plug-in chamber 14 and is connected to the PIN 22; as shown in fig. 19-20, when the PIN 12 is mounted on the PIN body 11 at 180 °, the PIN 12 is straight (i.e., linear), the PIN 12 and the PIN body 11 extend in the same direction, and the PIN 12 is connected to the circuit board 60 and the other end passes through the bottom wall of the cavity of the plug cavity 14 and then is connected to the PIN 22.

When the connector is required to perform a ground shield function, the shield member may be directly attached to the circuit board 60. Alternatively, as shown in fig. 26, the circuit board 60 may be connected with the shielding wire 91, the butt joint 30 is a metal joint, the female terminal main body 21 is provided with a grounding transfer elastic sheet 92, the grounding transfer elastic sheet 92 is connected with the metal joint, and the female terminal PIN 22 is connected with the grounding transfer elastic sheet 92 and the shielding wire 91, so that the grounding shielding function of the connector can be realized.

The embodiment also provides an assembling method of the connector, and the assembling method is applied to the connector. As shown in fig. 27, the assembling method of the connector includes the steps of: s100, providing a male end 10 and a female end 20 of the connector; s200, inserting the inserting part 211 of the female end main body 21 of the female end 20 into the inserting cavity 14 of the male end main body 11 of the male end 10, and connecting the male end PIN 12 of the male end 10 with the female end PIN 22 of the female end 20; s300, a sealing plug 23 is installed into the exhaust hole 213 of the female body 21 such that the sealing plug 23 abuts against the inner sidewall of the exhaust hole 213.

In the assembly method of the connector, in the process of inserting the inserting part 211 of the female end main body 21 into the inserting cavity 14 of the male end main body 11, air in the inserting cavity 14 is exhausted through the exhaust hole 213 on the fixing part 212 of the female end main body 21, so that the male end 10 and the female end 20 of the connector are easier to insert and connect during assembly, and the assembly efficiency is improved; after the male terminal 10 and the female terminal 20 are assembled, the sealing plug 23 is inserted into the exhaust hole 213 for plugging, so as to improve the sealing performance of the internal space of the connector and protect the internal electronic components.

Further, when the exhaust hole 213 is designed as a stepped hole, and a limit step is formed at a connection portion of the small-diameter hole 2131 and the large-diameter hole 2132 of the stepped hole, the step S300 includes: the sealing plug 23 is inserted into the exhaust hole 213 from the end of the large-diameter hole 2132 of the exhaust hole 213 until the sealing plug 23 abuts against the limiting step and the inner side wall of the exhaust hole 213.

It should be noted that when one portion is referred to as being "secured to" another portion, it may be directly on the other portion or there may be an intervening portion. When a portion is said to be "connected" to another portion, it may be directly connected to the other portion or intervening portions may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A connector, characterized by comprising a male end (10) and a female end (20), wherein the male end (10) comprises a male end body (11) and a male end PIN (12), the male end body (11) is provided with a plugging chamber (14) having a plugging opening (13), and a first end (121) of the male end PIN (12) penetrates through a bottom wall of the plugging chamber (14) opposite to the plugging opening (13);

the female end (20) comprises a female end main body (21) and a female end PIN needle (22), the female end main body (21) comprises a connection part (211) and a fixing part (212), the connection part (211) is inserted into the connection chamber (14) from the connection opening (13), the fixing part (212) is provided with an exhaust hole (213) penetrating through the fixing part (212) along the length direction of the female end main body (21), and a sealing plug (23) is arranged in the exhaust hole (213) and abutted against the inner side wall of the exhaust hole (213); female end PIN needle (22) set up in on female end main part (21), just female end PIN needle (22) with public end PIN needle (12) first end (121) are connected.

2. A connector according to claim 1, wherein the side wall of the sealing plug (23) is provided with a sealing sheet (24) obliquely arranged, the sealing sheet (24) comprises a fixed end and a free end opposite to the fixed end, the fixed end is fixedly connected with the side wall of the sealing plug (23), and the free end abuts against the inner side wall of the exhaust hole (213) and is arranged far away from the side wall of the sealing plug (23).

3. The connector according to claim 1, wherein the female PIN (22) is a hollow structure, the female PIN (22) comprises a first part (221) and a second part (222) which are integrally formed, and the inner diameter of the first part (221) is smaller than the inner diameter of the second part (222) and smaller than the outer diameter of the male PIN (12);

the end part of one end of the first part (221), which is far away from the second part (222), is provided with a PIN needle insertion opening (223), the side wall of the female PIN needle (22) is provided with a gap (224) extending from the end part of the first part (221) towards the direction of the second part (222), and the male PIN needle (12) is inserted into the female PIN needle (22) from the PIN needle insertion opening (223) to be connected with the female PIN needle (22).

4. A connector according to claim 3, wherein an end of the insertion part (211) remote from the fixing part (212) is provided with a first female end chamfer (214), and an inner wall surface of the insertion opening (13) is provided with a first male end chamfer (111); and/or, female end PIN needle (22) set up in inside female end main part (21), grafting portion (211) are kept away from be equipped with the through-hole on the one end tip of fixed part (212), first end (121) of public end PIN needle (12) pass the through-hole with female end PIN needle (22) are connected, the internal face of through-hole is equipped with second female end chamfer (2112), first end (121) tip of public end PIN needle (12) is equipped with second public end chamfer (1211).

5. Connector according to claim 1, characterized in that the distance of the plug opening (13) to an inner wall surface of a bottom wall of the plug chamber (14) opposite to the plug opening (13) is greater than the length of the plug portion (211); and/or a mounting gap (42) is arranged between the side wall of the plug part (211) and the side wall of the plug chamber (14); and/or partial inner surface of the side wall of the plug-in chamber (14) is set as a male end assembly plane (141), and a female end assembly plane (2111) matched with the male end assembly plane (141) is arranged on the side wall of the plug-in part (211).

6. The connector according to any one of claims 1 to 5, further comprising a connector body and a butt joint (30), wherein the butt joint (30) and the male end body (11) are both disposed on the connector body, a limit flange (215) is disposed on an outer wall of one end of the fixing portion (212) away from the insertion portion (211), the fixing portion (212) is inserted into the butt joint (30), the limit flange (215) abuts against an end surface of the butt joint (30), and the insertion portion (211) extends out of the butt joint (30).

7. The connector of claim 6, wherein a positioning spring (25) is sleeved on a side wall of the fixing portion (212), the positioning spring (25) comprises a spring main body (251) and a plurality of elastic buckles (252), the elastic buckles (252) are distributed at intervals along a circumferential direction of the spring main body (251), each elastic buckle (252) protrudes outwards, a positioning groove (31) is formed in an inner wall of the butt joint (30) along the circumferential direction, and the elastic buckles (252) elastically abut against the positioning groove (31).

8. The connector according to claim 7, wherein the positioning spring (25) further comprises a detaching guide piece (253), the detaching guide piece (253) comprises a bending protrusion (2531) and an extension (2532), two ends of the bending protrusion (2531) are respectively connected with the spring main body (251) and the extension (2532), the bending protrusion (2531) elastically abuts against the positioning groove (31), and a gap (43) is arranged between the extension (2532) and the positioning groove (31).

9. The connector according to claim 7, wherein a guide groove (32) is provided on an inner side wall of the butt joint (30), and a guide protrusion (216) corresponding to the guide groove (32) is provided on a side wall of the fixing portion (212), the guide protrusion (216) being inserted into the guide groove (32).

10. The connector according to any one of claims 1 to 5, further comprising a circuit board (60), wherein the PIN (12) of the male end is connected to the circuit board (60), the male end body (11) is provided with a positioning post (15) and/or a positioning rib (16), the circuit board (60) is provided with a positioning hole (61) and/or a clamping groove (62), the positioning post (15) is inserted into the positioning hole (61), and the positioning rib (16) is clamped in the clamping groove (62).

11. Connector according to claim 10, characterized in that a positioning rib (17) is further provided on the male end body (11), the positioning rib (17) is connected to the bottom wall of the plugging chamber (14) and extends in a direction away from the plugging opening (13), and a bottom surface of the positioning rib (17) abuts against the circuit board (60).

12. A method of assembling a connector, which is applied to the connector according to any one of claims 1 to 11, comprising the steps of:

providing a male end (10) and a female end (20) of the connector;

inserting the insertion part (211) of the female end body (21) of the female end (20) into the insertion chamber (14) of the male end body (11) of the male end (10), and connecting the male end PIN (12) of the male end (10) with the female end PIN (22) of the female end (20);

and a sealing plug (23) is arranged in the exhaust hole (213) of the female end body (21), so that the sealing plug (23) is abutted against the inner side wall of the exhaust hole (213).