CN213026624U

CN213026624U - Fixed mounting structure of electric connector contact pin

Info

Publication number: CN213026624U
Application number: CN202021820799.6U
Authority: CN
Inventors: 王贯民; 卞书波; 唐晨龙
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-04-20
Anticipated expiration: 2030-08-26

Abstract

A fixed mounting structure of an electric connector pin relates to the technical field of electric connectors and comprises an insulating mounting seat, wherein the insulating mounting seat is provided with a pin hole penetrating through an end face, a head end ring platform and a middle ring platform are respectively and inwards convexly arranged at the head end and the middle part of the pin hole, and a positioning clamp spring sleeve for fixing the pin and preventing the pin from moving axially is coaxially arranged between the head end ring platform and the middle ring platform; the end surface of the middle ring head is fixedly provided with a convex block, the corresponding end part of the positioning clamp spring sleeve is provided with a notch matched with the convex block, the head end of the convex block along the axial direction of the pin inserting hole is smaller than the bottom end fixed with the middle ring, and when the end surface of the middle ring head is abutted against the corresponding end surface of the positioning clamp spring sleeve, the convex block and the notch are also abutted correspondingly; this fixed mounting structure can effectively improve the life of contact pin mount pad, prevents that location jump ring cover from deviating from inefficacy.

Description

Fixed mounting structure of electric connector contact pin

Technical Field

The utility model belongs to the technical field of the electric connector technique and specifically relates to a fixed mounting structure of electric connector contact pin is related to.

Background

The applicant discloses a connecting structure of a contact pin tail handle and a rear sleeve in a jack contact element for an optical cable connector in a Chinese utility model patent with the publication number of CN201007751, wherein a positioning snap spring is arranged in an annular cavity of the rear sleeve, and the inserted contact pin is axially positioned by utilizing a step surface of the rear sleeve and a reed of the positioning snap spring, so that the purpose of fixing the contact pin is achieved; later, the mounting structure for fixing the contact pin by using the positioning clamp spring is also applied to other connectors, such as a circular electric connector, but after long-term popularization and use, problems and defects are found to exist;

because the mounting seat of the contact pin of the electric connector needs to be made of non-metal insulating materials, the rigidity of the mounting seat is inferior to that of the contact pin and the positioning snap spring, in the process of inserting the contact pin, the stress of the contact pin can be transmitted to the step surface of the contact pin hole of the mounting seat through the positioning snap spring, if the stress of the contact pin is too large or the contact pin is used for long-term inserting, the corresponding step of the mounting seat is easily crushed, the positioning snap spring is separated and loses efficacy, the mounting position of the contact pin is loosened, and the service life of the whole connector is influenced; the limitations of the overall structural design and insulating materials have only been addressed in other ways to address this problem.

Disclosure of Invention

In order to overcome not enough among the background art, the utility model discloses a fixed mounting structure of electric connector contact pin can effectively improve the life of contact pin mount pad, prevents that location jump ring cover from deviating from inefficacy.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a fixed mounting structure of an electric connector contact pin comprises an insulating mounting seat, wherein the insulating mounting seat is provided with a contact pin hole penetrating through an end face, the head end and the middle part of the contact pin hole are respectively provided with a head end ring platform and a middle ring platform in an inward protruding mode, and a positioning clamp spring sleeve used for fixing the contact pin and preventing the contact pin from moving axially is coaxially arranged between the head end ring platform and the middle ring platform; the fixed lug that is equipped with of middle part ring platform head terminal surface, the corresponding tip of location jump ring cover is equipped with the breach of adaptation lug, the lug is less than the bottom fixed with middle part ring platform along the axial head end of contact pin hole, and when middle part ring platform head terminal surface contradicts with the corresponding terminal surface of location jump ring cover, lug and breach correspond conflict equally.

Furthermore, the convex block is of a conical structure which is matched with the notch in an inserted mode.

Further, the bump is triangular or trapezoidal.

Furthermore, the positioning clamp spring sleeve is inwards bent for one circle away from the end wall surface of the middle ring platform, and a plurality of clamping jaws are arranged on the positioning clamp spring sleeve, and the outer ends of the clamping jaws and the head end ring platform are respectively abutted against and positioned on two end surfaces of the shaft shoulder clamping column in the middle of the contact pin.

Furthermore, the lug is evenly equipped with a plurality ofly along middle part ring platform circumference, and every jack catch at least axial corresponds a lug.

Further, the number of the convex blocks is two.

Furthermore, the lug, the middle ring platform and the insulating mounting seat are of an integrated structure.

Further, the insulating mounting seat comprises a limiting plate and a mounting plate which are fixedly connected, and the head end ring platform and the middle ring platform are respectively integrated with the limiting plate and the mounting plate.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

the utility model discloses a fixed mounting structure of electric connector contact pin, under the restriction of whole mounting structure design and insulating material, through set up the lug on the middle part ring platform in the contact pin hole, location jump ring cover tip sets up corresponding breach, when making middle part ring platform contradict the atress with the location jump ring, for traditional plane contact, more can reduce the axial force that acts on the middle part ring platform contact surface, avoid being conquacted through alleviating middle part ring platform atress, thereby prevent that location jump ring cover from deviating from inefficacy, improved the quality and the life of connector; in addition, the matching of the notch and the convex block can also prevent the positioning clamp spring sleeve from rotating relative to the insulating mounting seat, and reduces the abrasion to the pin inserting hole, the head end ring platform and the middle ring platform.

Drawings

Fig. 1 is a schematic view of the present invention;

FIG. 2 is a schematic structural diagram of the positioning clamp spring sleeve;

FIG. 3 is a schematic top view of the structure of FIG. 2;

FIG. 4 is a schematic diagram of the right side view of the structure of FIG. 2;

FIG. 5 is a schematic structural view of the central ring platform;

FIG. 6 is a force analysis diagram of the pin;

FIG. 7 is a schematic view of a stress analysis of a traditional positioning clamp spring after being unfolded;

FIG. 8 is a schematic view of the force analysis of the positioning jump ring sleeve after being unfolded;

FIG. 9 is a force analysis schematic of the central ring table;

fig. 10 is a schematic view of a force analysis of the bump.

In the figure: 1. a pin inserting hole; 2. a middle ring platform; 201. a bump; 3. positioning a clamp spring sleeve; 301. a notch; 302. A claw; 4. a head end loop station; 5. and (6) inserting pins.

Detailed Description

The present invention can be explained in detail by the following embodiments, and the purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention, and the present invention is not limited to the following embodiments; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., it is only corresponding to the drawings of the present application, and for the convenience of describing the present invention, it is not intended to indicate or imply that the device or element referred to must have a particular orientation:

the fixed mounting structure of the electric connector pin described with reference to fig. 1-5 comprises an insulating mounting base, the insulating mounting base is provided with a pin hole 1 penetrating through the end face, the head end and the middle part of the pin hole 1 are respectively provided with a head end ring platform 4 and a middle ring platform 2 in an inward protruding manner, a positioning clamp spring sleeve 3 for fixing the pin 5 to prevent axial movement is coaxially arranged between the head end ring platform 4 and the middle ring platform 2, the positioning clamp spring sleeve 3 is bent inwards in a circumferential direction away from the end wall surface of the middle ring platform 2 as required, the outer ends of the clamp jaws 302 and the head end ring platform 4 are respectively abutted against and positioned with the two end faces of a shaft shoulder clamp column in the middle part of the pin 5, that is, when the pin 5 is inserted into the pin hole 1, the shaft shoulder clamp column of the pin can be inserted into the positioning clamp spring sleeve 3, and axial positioning is performed through the; in addition, insulating mount pad comprises fixed connection's limiting plate and mounting panel, and head end ring platform 4 and middle part ring platform 2 are structure as an organic whole with limiting plate and mounting panel respectively, are convenient for process manufacturing insulating mount pad.

The end face of the head of the middle ring platform 2 is fixedly provided with a convex block 201, the corresponding end part of the positioning clamp spring sleeve 3 is provided with a notch 301 matched with the convex block 201, and the head end of the convex block 201 along the axial direction of the pin inserting hole 1 is smaller than the bottom end fixed with the middle ring platform 2, so that the stressed surface of the convex block 201 can be ensured to be capable of decomposing the axial force; according to the requirement, the bump 201 is designed to be a conical structure which is matched with the insertion of the notch 301, namely, the contact surface of the bump 201 and the notch 301 is an inclined surface, and in addition, the bump 201 is designed to be triangular or trapezoidal; when the end face of the head of the middle annular table 2 is abutted against the corresponding end face of the positioning clamp spring sleeve 3, the lug 201 is abutted against the notch 301 correspondingly, so that no gap exists between the lug 201 and the notch 301 when the end face of the head of the middle annular table 2 is abutted against the positioning clamp spring sleeve 3 and the stress is generated, and the lug 201 is prevented from losing efficacy; according to the requirement, a plurality of lugs 201 are uniformly arranged along the circumferential direction of the middle annular table 2, each clamping jaw 302 at least axially corresponds to one lug 201, and the positions of the lugs 201 and the clamping jaws 302 axially correspond due to the fact that the clamping jaws 302 directly abut against the contact pins 5 to bear force, so that the relieving effect is better; in addition, two lugs 201 are arranged, that is, two claws 302 can be arranged, and each claw 302 corresponds to one lug 201; according to the needs, lug 201, middle part ring platform 2 and insulating mount pad structure as an organic whole, be convenient for manufacturing.

As shown in fig. 6 to 10, two triangular projections 201 are provided on the middle ring platform 2, the force F1 of the contact pin 5 is F2+ F3-F4-F5 + F6+ F7+ F8+ F9, wherein F6 is F8, which can be divided into 4F 10, F11, F12, F13, F10 is F11-F12-F13, F10 is perpendicular to the contact ramp, which is divided into an axial force F14 and a horizontal force F15, F11 is perpendicular to the contact ramp, which is divided into an axial force F16 and a horizontal force F17, wherein F15 and F17 are horizontal and different directions, F15 and F17 are axial forces, F15+ F17 < F10+ F11, that is to say, the axial force acting on the contact ramp is reduced, thereby reducing the stress on the middle ring platform and preventing the spring from falling out of the connection, thereby improving the service life of the connector.

The part of the utility model not detailed is prior art.

Claims

1. The utility model provides a fixed mounting structure of electric connector contact pin, contains insulating mount pad, insulating mount pad is equipped with contact pin hole (1) that link up the terminal surface, the head end and the middle part of contact pin hole (1) are inside protruding respectively and are equipped with head end ring platform (4) and middle part ring platform (2), coaxial being equipped with between head end ring platform (4) and middle part ring platform (2) is used for fixed contact pin (5) to prevent axial displacement's location jump ring cover (3), its characterized in that: middle part ring platform (2) head end face is fixed and is equipped with lug (201), the corresponding tip of location jump ring cover (3) is equipped with breach (301) of adaptation lug (201), lug (201) are less than the bottom fixed with middle part ring platform (2) along pin hole (1) axial head end, and when middle part ring platform (2) head end face contradicts with the corresponding terminal surface of location jump ring cover (3), lug (201) and breach (301) correspond the conflict equally.

2. The fixed mounting structure of the electric connector pin according to claim 1, wherein: the bump (201) is designed into a conical structure which is matched with the insertion of the notch (301).

3. The fixed mounting structure of the electric connector pin according to claim 2, wherein: the bump (201) is triangular or trapezoidal.

4. The fixed mounting structure of the electric connector pin according to claim 1, wherein: the end wall surface of the positioning clamp spring sleeve (3) far away from the middle ring platform (2) is inwards bent for one circle to be provided with a plurality of clamping jaws (302), and the outer ends of the clamping jaws (302) and the head end ring platform (4) are respectively abutted against and positioned on two end surfaces of a shaft shoulder clamping column in the middle of the contact pin (5).

5. The fixed mounting structure of the electric connector pin according to claim 4, wherein: the lug (201) is evenly provided with a plurality of along middle part ring platform (2) circumference, and every jack catch (302) at least axial corresponds one lug (201).

6. The fixed mounting structure of the electric connector pin according to claim 5, wherein: the number of the lugs (201) is two.

7. The fixed mounting structure of the electric connector pin according to claim 1, wherein: the lug (201), the middle annular table (2) and the insulating mounting seat are of an integrated structure.

8. The fixed mounting structure of the electric connector pin according to claim 1, wherein: the insulating mounting seat is composed of a limiting plate and a mounting plate which are fixedly connected, and the head end ring platform (4) and the middle ring platform (2) are respectively integrated with the limiting plate and the mounting plate.