CN214227260U - Electric connector with fool-proof function - Google Patents

Abstract

The utility model relates to an electric connector with prevent slow-witted function is formed by public seat portion and female seat portion mutually inserting. The male base portion includes a rectangular male base plastic body and a male base conductive terminal. The female base portion includes a rectangular female base plastic body and a female base conduction terminal. The male seat part and the female seat part are connected in a buckling mode. A horizontally arranged elastic clamping arm extends outwards from the rectangular male seat plastic body, and a clamping notch is formed in the horizontally arranged elastic clamping arm. The side wall of the rectangular female seat plastic body continuously extends outwards to form a clamping limiting convex block matched with the clamping gap. The rectangular female seat plastic body is additionally provided with a fool-proof part. The fool-proof part is composed of a plurality of fool-proof convex strip units which are directly formed on the side wall of the plastic body of the rectangular female seat and independently have the effect. Therefore, only when the male seat part keeps a correct inserting and matching angle relative to the female seat part, namely the horizontally-arranged elastic clamping arm is completely opposite to the clamping limiting bump, the inserting and matching operation of the male seat part relative to the female seat part can be smoothly realized.

Description

Electric connector with fool-proof function

Technical Field

The utility model belongs to the technical field of the electric connector manufacturing technology and specifically relates to an electric connector with prevent slow-witted function.

Background

An electrical connector is a universal connector widely used in electronics, electrical appliances and instruments, and mainly takes on the task of current or signal transmission. The electric connector is formed by mutually inserting and matching a male seat part and a female seat part.

The male base portion includes a male base plastic body and a male base conductive terminal. The female base portion includes a female base plastic body and a female base conduction terminal. After the male socket portion is inserted and assembled relative to the female socket portion, the male socket plastic body is sleeved by the female socket plastic body, and the male socket conduction terminal is in contact with the female socket conduction terminal and is electrically conducted. However, in the prior art, the mating interfaces of the male and female plastic bodies are rectangular or square. Due to the lack of effective fool-proof marks, in the practical application of the electrical connector, the male socket portion is easily mistakenly inserted with respect to the female socket portion (for example, the male socket portion is inserted into the female socket portion when continuously rotating 90 degrees or 180 degrees with respect to the correct insertion posture), so that the insertion relationship between the male socket conduction terminal and the female socket conduction terminal is mistakenly inserted, and further, the occurrence of the phenomena of poor product functions or equipment damage is caused. Thus, a skilled person is urgently needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Therefore, in view of the above-mentioned problems and drawbacks, the present invention provides an electrical connector with foolproof function, which is obtained by collecting relevant data, evaluating and considering the data in multiple ways, and continuously performing experiments and modifications by a plurality of years of research and development experience technicians engaged in the industry.

In order to solve the above technical problem, the utility model relates to an electric connector with prevent slow-witted function, it is formed by public seat portion and female seat portion mutually supporting of inserting. The male base portion includes a rectangular male base plastic body and a male base conductive terminal. The number of the public seat conducting terminals is set to be a plurality of, and the public seat conducting terminals are all inserted into the rectangular public seat plastic body. The female base portion includes a rectangular female base plastic body and a female base conduction terminal. The number of the female seat conducting terminals is set to be a plurality of, and the female seat conducting terminals are all inserted into the rectangular female seat plastic body. After the male socket portion is inserted and matched with the female socket portion, the rectangular male socket plastic body is sleeved with the rectangular female socket plastic body, and the male socket conducting terminal is in contact with the female socket conducting terminal and is electrically conducted. The male seat part and the female seat part are preferably connected in a buckling mode. A horizontally-arranged elastic clamping arm extends outwards from the rectangular male seat plastic body. The horizontally arranged elastic clamping arm is provided with a clamping gap. The rectangular female seat plastic body comprises a side wall A, a side wall B, a side wall C and a side wall D which are sequentially arranged around the circumference of the rectangular female seat plastic body. A clamping limiting lug matched with the clamping notch extends outwards from the side wall A. The rectangular female seat plastic body is additionally provided with a fool-proof part. The foolproof part comprises a B foolproof convex strip unit, a C foolproof convex strip unit and a D foolproof convex strip unit, wherein the B foolproof convex strip unit comprises at least one B foolproof convex strip formed by continuously extending the side wall B outwards; the C foolproof convex strip unit is formed by at least one C foolproof convex strip formed by continuously extending the side wall of the C outwards; the D fool-proof convex strip unit is composed of at least one D fool-proof convex strip formed by continuously extending the D side wall outwards.

As a further improvement of the technical solution of the present invention, the B fool-proof convex strip unit is preferably composed of two B fool-proof convex strips arranged in parallel, and the neutral position value between the B fool-proof convex strips is assumed to be d 1; the C foolproof convex strip unit is composed of two C foolproof convex strips which are arranged in parallel, and the neutral position value between the C foolproof convex strips is assumed to be d 2; the D foolproof convex strip unit is composed of two D foolproof convex strips which are arranged in parallel, and the neutral position value between the D foolproof convex strips is assumed to be D3; assuming that the width of the flat resilient snap-in arm is set to w, d1, d2, and d3 are all less than w.

As a further improvement of the technical proposal of the utility model, a B anti-dislocation extension section is extended from the B fool-proof raised line along the length direction of the plastic body of the rectangular male seat in opposite directions; a C anti-dislocation extension section extends from the C anti-fool raised line along the length direction of the rectangular male seat plastic body; a D anti-dislocation extension section extends from the D anti-fool raised line along the length direction of the rectangular male seat plastic body; the B anti-offside epitaxial section, the C anti-offside epitaxial section and the D anti-offside epitaxial section exceed the preset distance of the pre-inserting end face of the rectangular female seat plastic body.

As a further improvement of the technical proposal of the utility model, the male seat part also comprises a rubber sealing sleeve. The rubber sealing sleeve is sleeved on the rectangular male seat plastic body. And when the male seat portion is inserted and matched with the female seat portion, the rubber sealing sleeve is always elastically pressed between the rectangular male seat plastic body and the rectangular female seat plastic body.

Compare in the electric connector of traditional project organization the utility model discloses an among the technical scheme, it also realizes the buckle of its public seat portion and female seat portion through the mode that the spacing lug of flat elasticity joint arm and joint inserted mutually and join in marriage and is connected, however, all extends around the all lateral walls of its public seat plastic body of rectangle and has prevented slow-witted sand grip unit (need get rid of the lateral wall that generates the spacing lug of joint). When the male seat portion is inserted and matched with the female seat portion, if the male seat portion has a certain deviation amount relative to the correct insertion and matching angle, the horizontally-arranged elastic clamping arm fails to insert and match with the female seat portion due to the axial blocking force of the foolproof convex strip unit. Only when the male seat part keeps a correct inserting and matching angle relative to the female seat part, namely the horizontally-arranged elastic clamping arm is completely opposite to the clamping limiting lug, the inserting and matching operation of the male seat part relative to the female seat part can be smoothly realized. Therefore, the problem that the male seat part is inserted by mistake relative to the female seat part is effectively avoided, the normal execution of the transmission process of signals is further ensured, and the phenomenon of poor product function or equipment damage caused by the wrong insertion and matching relation between the male seat conducting terminal and the female seat conducting terminal is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of an electrical connector with fool-proof function according to the present invention.

Fig. 2 is an exploded view of the electrical connector with fool-proof function of the present invention.

Fig. 3 is an exploded view of the male seat of the electrical connector with fool-proof function of the present invention.

Fig. 4 is an exploded view of the female seat of the electrical connector with fool-proof function of the present invention.

Fig. 5 is a schematic perspective view of a plastic body of a rectangular male receptacle in an electrical connector with foolproof function.

Fig. 6 is a schematic perspective view of a plastic body of a rectangular female socket in an electrical connector with fool-proof function according to the present invention.

Fig. 7 is a rear view of fig. 6.

Fig. 8 is an enlarged view of part I of fig. 6.

Fig. 9 is a top view of fig. 1.

Fig. 10 is a sectional view a-a of fig. 9.

Fig. 11 is a schematic perspective view of the electrical connector with fool-proof function according to the present invention (in the wrong insertion state).

Fig. 12 is a side view of fig. 11.

1-a male seat portion; 11-rectangular male seat plastic body; 111-horizontally arranging an elastic clamping arm; 1111-clamping notch; 12-male seat conducting terminal; 13-rubber sealing sleeve; 2-a female seat portion; 21-rectangular female seat plastic body; 211-A side wall; 2111-clamping the limit bump; 212-B side walls; 213-C side wall; 214-D side walls; 215-fool-proof portion; 2151-B fool-proof convex strip unit; 21511-B foolproof ridges; 215111-B anti-dislocation extension section; 2152-C fool-proof convex strip unit; 21521-C fool-proof convex strip; 2153-D fool-proof raised line unit; 21531-D fool-proof raised line; 22-female socket conduction terminal.

Detailed Description

In the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The following is combined with the specific embodiment to make further detailed description on the technical solution disclosed in the present invention, fig. 1 and fig. 2 respectively show the three-dimensional schematic diagram of the electrical connector with foolproof function and the explosion schematic diagram thereof, it can be known that the electrical connector is formed by mutually inserting and matching the male seat portion 1 and the female seat portion 2, and the cooperation is used to realize the transmission of signals.

As shown in fig. 3, the male socket 1 is mainly composed of a rectangular male socket plastic body 11 and a male socket conduction terminal 12. The number of the male socket conducting terminals 12 is set to be multiple, the male socket conducting terminals are all inserted into the rectangular male socket plastic body 11, and the male socket conducting terminals are arranged in a rectangular array mode on the whole.

As shown in fig. 4, the female socket 2 is mainly composed of a rectangular female socket plastic body 21, a female socket conduction terminal 22, and the like. The number of the female socket conduction terminals 22 is set to be a plurality of, the female socket conduction terminals are all inserted into the rectangular female socket plastic body 21, and the female socket plastic body is arranged in a rectangular array mode on the whole.

As shown in fig. 9 and 10, after the male socket 1 is inserted into the female socket 2, the rectangular male socket plastic body 11 is inserted into the rectangular female socket plastic body 21, and the male socket conduction terminal 12 and the female socket conduction terminal 22 are in contact with each other and electrically conducted.

As can also be seen from fig. 1 and 2, the male seat portion 1 and the female seat portion 2 are connected by a snap-fit manner. As shown in fig. 5, a flat elastic clamping arm 111 extends from the rectangular male housing plastic body 11. As shown in fig. 6 and 7, a snap notch 1111 is formed on the horizontally disposed elastic snap arm 111. The rectangular female housing plastic body 21 includes a sidewall a 211, a sidewall B212, a sidewall C213, and a sidewall D214 arranged in sequence around a circumference thereof. A clamping limit bump 2111 matched with the clamping notch 1111 extends outwards from the side wall A211. When the male seat portion 1 is inserted and assembled, an operator axially pushes the male seat portion 1 to enable the male seat portion 1 to move in the female seat portion 2 in a mutual mode, in the process, the horizontally arranged elastic clamping arm 111 slides along the outer side wall of the rectangular female seat plastic body 21 and is subjected to adaptive 'lifting' deformation under the action of lateral jacking force of the clamping limiting bump 2111 until the clamping limiting bump 2111 is completely clamped into the clamping notch 1111, and therefore the clamping connection between the male seat portion 1 and the female seat portion 2 is conveniently and quickly achieved.

As can be seen from fig. 6 and 7, a fool-proof portion 215 is additionally provided on the rectangular female housing plastic body 21. The fool-proof portion 215 is composed of a B fool-proof protruding strip unit 2151, a C fool-proof protruding strip unit 2152 and a D fool-proof protruding strip unit 2153, wherein the B fool-proof protruding strip unit 2151 is composed of two B fool-proof protruding strips 21511 which are formed by extending the B side wall 212 outwards continuously and are arranged in parallel; the C-shaped fool-proof protruding strip unit 2152 is composed of two C-shaped fool-proof protruding strips 21521 which are formed by extending the C-shaped side wall 213 outwards continuously and are arranged in parallel; the D-fool-proof protrusion bar unit 2153 is composed of two D-fool-proof protrusion bars 21531 extending outward from the D-side wall 214 and disposed in parallel. In performing the plugging operation of the male seat 1 with respect to the female seat 2, if the male seat 1 has a certain deviation amount with respect to its correct plugging angle, the flat elastic snap-in arms 111 are subject to the axial blocking force of the fool-proof protruding strip units (including the B fool-proof protruding strip unit 2151, the C fool-proof protruding strip unit 2152 and the D fool-proof protruding strip unit 2153 described above) to cause the failure of the plugging operation of the male seat 1 with respect to the female seat 2. The insertion and fitting operation of the male seat portion 1 with respect to the female seat portion 2 can be smoothly achieved only when the male seat portion 1 maintains a correct insertion and fitting angle with respect to the female seat portion 2, that is, when the flat elastic engaging arm 11 is completely opposed to the engaging limit projection 2111. Therefore, the problem that the male socket part 1 is inserted by mistake relative to the female socket part 2 is effectively avoided, the normal execution of the signal transmission process is ensured, and the phenomenon of poor product function or equipment damage caused by the wrong insertion and matching relation between the male socket conduction terminal 12 and the female socket conduction terminal 22 is avoided.

In order to facilitate the technical contents more fully understood by those skilled in the art, fig. 11 is a schematic perspective view illustrating the electrical connector with fool-proof function in the state of being incorrectly inserted and mated.

It should be noted that, in order to ensure that the B fool-proof protrusion bar units 2151, the C fool-proof protrusion bar units 2152, and the D fool-proof protrusion bar units 2153 normally exert the "fool-proof" effect when the male seat portion 1 is inserted into and mated with the female seat portion 2, the shift values among the B fool-proof protrusion bar 21511, the C fool-proof protrusion bar 21521, and the D fool-proof protrusion bar 21531 need to be controlled, specifically as follows: as shown in fig. 5 and 6, assume that the value of the gap between the B fool-proof ribs is d 1; assume a value of the void between the C fool-proof ridges as d 2; assume a value of D3 for the neutral position between the D fool-proof tabs; assuming that the width of the horizontal resilient snap-in arm 111 is set to w, d1, d2, and d3 are all smaller than w. In this way, when the male seat 1 is incorrectly inserted into the female seat 2, the B-fool-proof protrusion 21511, the C-fool-proof protrusion 21521, and the D-fool-proof protrusion 21531 inevitably interfere with the flat elastic engaging arm 111, thereby interrupting the incorrect insertion process.

However, the electrical connector with fool-proof function still has the following problems found in the early small-lot trial production stage: although the B fool-proof convex strip 21511, C fool-proof convex strip 21521 and D fool-proof convex strip 21531 may cause a certain stopping and limiting effect on the erroneous insertion process of the flat elastic clamping arm 111, when the insertion force applied to the male seat 1 is large, the flat elastic clamping arm 111 is elastically deformed by the jacking force of the B fool-proof convex strip 21511, C fool-proof convex strip 21521 and D fool-proof convex strip 21531, and is deflected by a certain angle to pass over the B fool-proof convex strip 21511, C fool-proof convex strip 21521 and D fool-proof convex strip 21531, which still causes the phenomenon that the male seat conduction terminal 12 is inserted by mistake relative to the female seat conduction terminal 22, and further causes the problems of poor product function or equipment damage. In view of this, as a further optimization of the electrical connector structure with fool-proof function, as shown in fig. 6 and 8, a B-anti-over extension 215111 is extended from the B-fool-proof protrusion 21511 along the length direction of the rectangular male housing plastic body 11. And B, the anti-offside epitaxial section needs to exceed the pre-insertion end face of the rectangular female base plastic body by a set distance. As shown in fig. 11 and 12, when the male seat 1 is incorrectly inserted into the female seat 2, for example, at this time, the flat elastic clamping arm 111 is aligned with the B-fool-proof protrusion 21511, and the flat elastic clamping arm 111 gradually moves to the inner side of the B-fool-proof extension 215111 as the insertion process is further performed, so as to effectively avoid the phenomenon that the flat elastic clamping arm 111 is inclined due to the lateral ejection force, and thus, even if the operator applies a large insertion force to the male seat 1, the incorrect insertion operation with the female seat 2 cannot be completed.

For the same purpose, the C-fool-proof protrusion 21521 and the D-fool-proof protrusion 21531 can also be designed with reference to the structural form of the B-fool-proof protrusion 21511, as follows: a C-anti-dislocation extension section (not shown) extends from the C-anti-fool raised line 21521 along the length direction of the rectangular male housing plastic body 11; a D anti-dislocation extension section extends from the D anti-fool raised line 21531 along the length direction of the rectangular male seat plastic body 11; the C anti-offside extension section and the D anti-offside extension section both need to exceed the pre-insertion end face of the rectangular female seat plastic body 21 by a set distance.

As is known, in the practical application process of the electrical connector, after external water or moisture invades into the inner cavity of the electrical connector, the stability of signal transmission is inevitably adversely affected, and even a short circuit phenomenon occurs, therefore, as shown in fig. 2 and 3, a rubber sealing sleeve 13 is additionally added to the male socket 1. The rubber seal 13 is sleeved on the rectangular male seat plastic body 11. And when the male seat portion 1 is inserted and assembled with respect to the female seat portion 2, the rubber sealing sleeve 13 is always elastically pressed between the rectangular male seat plastic body 11 and the rectangular female seat plastic body 21 (as shown in fig. 9 and 10), thereby effectively preventing water or moisture from entering the inner cavity of the electrical connector through the assembly gap.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (4)

1. An electric connector with fool-proof function is formed by mutually inserting and matching a male seat part and a female seat part; the male seat part comprises a rectangular male seat plastic body and a male seat conducting terminal; the number of the male seat conducting terminals is multiple, and the male seat conducting terminals are all inserted into the rectangular male seat plastic body; the female seat part comprises a rectangular female seat plastic body and a female seat conduction terminal; the number of the female seat conducting terminals is multiple, and the female seat conducting terminals are all inserted into the rectangular female seat plastic body; after the male seat part is inserted and matched with the female seat part, the rectangular male seat plastic body is sleeved in the rectangular female seat plastic body, and the male seat conducting terminal is contacted with the female seat conducting terminal and is electrically conducted; the male seat part and the female seat part are connected in a buckling mode; a horizontally-arranged elastic clamping arm continuously extends outwards from the rectangular male seat plastic body; a clamping gap is formed on the horizontally-arranged elastic clamping arm; the rectangular female seat plastic body comprises a side wall A, a side wall B, a side wall C and a side wall D which are sequentially arranged around the circumference of the rectangular female seat plastic body; a clamping limiting lug matched with the clamping notch continuously extends outwards from the side wall A, and the rectangular female seat plastic body is additionally provided with a fool-proof part; the foolproof part consists of a foolproof convex strip unit B, a foolproof convex strip unit C and a foolproof convex strip unit D; the B foolproof convex strip unit is formed by at least one B foolproof convex strip formed by continuously extending the side wall B outwards; the C foolproof convex strip unit is formed by at least one C foolproof convex strip formed by continuously extending the side wall of the C outwards; the D fool-proof convex strip unit is composed of at least one D fool-proof convex strip formed by continuously extending the D side wall outwards.

2. The electrical connector with foolproof function as set forth in claim 1, wherein said B foolproof rib unit is composed of two B foolproof ribs disposed in parallel with each other, and a neutral value between said B foolproof ribs is assumed to be d 1; the C foolproof convex strip unit is composed of two C foolproof convex strips which are arranged in parallel, and the neutral position value between the C foolproof convex strips is assumed to be d 2; the D foolproof convex strip unit is composed of two D foolproof convex strips which are arranged in parallel, and the neutral position value between the D foolproof convex strips is assumed to be D3; assuming that the width of the flat resilient snap-in arm is set to w, d1, d2, and d3 are all less than w.

3. The electrical connector with foolproof function as claimed in claim 2, wherein a B anti-dislocation extension section extends from said B anti-foolproof protrusion strip along the length direction thereof opposite to said rectangular male housing plastic body; a C anti-dislocation extension section extends from the C fool-proof raised line along the length direction of the rectangular male seat plastic body in an opposite way; a D anti-dislocation extension section extends from the D anti-fool raised line along the length direction of the rectangular male seat plastic body in an opposite way; the B anti-offside extension section, the C anti-offside extension section and the D anti-offside extension section all exceed the preset distance of the pre-inserting end face of the rectangular female seat plastic body.

4. The foolproof electrical connector of any of claims 1-3 wherein said male seat portion further comprises a rubber boot seal; the rubber sealing sleeve is sleeved on the rectangular male seat plastic body; and after the male seat part is inserted and matched with the female seat part, the rubber sealing sleeve is always elastically pressed between the rectangular male seat plastic body and the rectangular female seat plastic body.

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